@import "https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=IBM+Plex+Sans:wght@400;500;600&family=Instrument+Serif:ital@0;1&display=swap";

/* apps/sql/dist/style.css */
:root {
  color-scheme: dark;
  --paper: #0b111b;
  --paper-2: #151e2a;
  --ink: #eef3f8;
  --ink-2: #b3bfd0;
  --ink-3: #8d9db1;
  --ink-4: #78889c;
  --line: rgba(174, 198, 224, 0.13);
  --line-strong: rgba(174, 198, 224, 0.27);
  --blue: #80c7ff;
  --blue-soft: rgba(128, 199, 255, 0.11);
  --yellow: #f4ce60;
  --yellow-fill: #f4ce60;
  --yellow-soft: rgba(244, 206, 96, 0.11);
  --on-yellow: #29220f;
  --yellow-hover: #ffdc79;
  --night: #0e1724;
  --night-2: #152338;
  --cream: #101a27;
  --ok: var(--blue);
  --warn: var(--yellow);
  --bad: #f79488;
  --header: rgba(11, 17, 27, 0.95);
  --button-ink: #07121f;
  --button-hover: #a7daff;
  --radius: 8px;
  --shadow: 0 20px 80px rgba(0, 0, 0, 0.2);
  --ease: cubic-bezier(0.25, 1, 0.5, 1);
  --display:
    "IBM Plex Sans",
    "Helvetica Neue",
    sans-serif;
  --sans:
    "IBM Plex Sans",
    "Helvetica Neue",
    sans-serif;
  --mono:
    "IBM Plex Mono",
    ui-monospace,
    monospace;
}
:root[data-theme=light] {
  color-scheme: light;
  --paper: #f7f9fc;
  --paper-2: #edf2f8;
  --ink: #172534;
  --ink-2: #47586a;
  --ink-3: #58697b;
  --ink-4: #687b8f;
  --line: rgba(32, 61, 94, 0.14);
  --line-strong: rgba(32, 61, 94, 0.28);
  --blue: #1264a3;
  --blue-soft: rgba(18, 100, 163, 0.08);
  --yellow: #856100;
  --yellow-soft: rgba(244, 206, 96, 0.16);
  --night: #eef3f9;
  --night-2: #e5edf6;
  --cream: #ffffff;
  --bad: #b33f34;
  --header: rgba(247, 249, 252, 0.95);
  --button-ink: #ffffff;
  --button-hover: #0c518b;
  --shadow: 0 20px 80px rgba(32, 61, 94, 0.08);
}
:root {
  --page: #0b111b;
  --surface: #101a27;
  --good: #98d7b0;
  --good-soft: rgba(108, 190, 140, .12);
  --radius: 12px;
}
:root[data-theme=light] {
  --page: #fbf9f3;
  --surface: #fff;
  --good: #257448;
  --good-soft: #edf7ee;
}
* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
}
html {
  scroll-padding-top: 24px;
}
body {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  height: 100dvh;
  background: var(--page);
  color: var(--ink);
  font: 16px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
button {
  cursor: pointer;
}
button:disabled {
  opacity: .5;
  cursor: not-allowed;
}
button[hidden],
[hidden] {
  display: none !important;
}
h1,
h2,
h3,
p {
  margin: 0;
}
:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}
::selection {
  background: var(--blue);
  color: var(--paper);
}
.icons {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}
.icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.skip {
  position: absolute;
  left: 12px;
  top: -60px;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 14px;
  z-index: 20;
  border-radius: 8px;
}
.skip:focus {
  top: 12px;
}
.header {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.header-inner {
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 80px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 22px;
  letter-spacing: -.04em;
  font-weight: 600;
  white-space: nowrap;
}
.brand > span:last-child {
  color: var(--blue);
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 37px;
  height: 37px;
  border-radius: 10px;
  color: var(--blue);
  background: var(--blue-soft);
  margin-right: 6px;
}
.brand-mark .icon {
  width: 23px;
  height: 23px;
}
.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav a,
.nav button {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
  background: none;
  border: 0;
  border-radius: 7px;
  color: var(--ink-2);
  padding: 10px 14px;
  font-size: 14px;
}
.nav a:hover,
.nav button:hover {
  color: var(--blue);
  background: var(--blue-soft);
}
.nav .active {
  color: var(--blue);
  background: var(--blue-soft);
  font-weight: 500;
}
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-shrink: 0;
  min-height: 40px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink-2);
  font-size: 12px;
  transition: border-color 180ms;
}
.theme-toggle:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.theme-light {
  display: inline-flex;
  color: var(--yellow);
}
.theme-dark {
  display: none;
  color: var(--blue);
}
:root[data-theme=light] .theme-light {
  display: none;
}
:root[data-theme=light] .theme-dark {
  display: inline-flex;
}
.app-layout {
  --menu-width: 260px;
  display: grid;
  grid-template-columns: var(--menu-width) minmax(0, 1fr);
  min-height: 0;
}
.app-layout:has(> .learning-menu:not([open])) {
  --menu-width: 52px;
}
.page {
  min-width: 0;
  overflow-y: auto;
  padding: 34px 32px 22px max(32px, calc((100vw - 1276px) / 2 - var(--menu-width)));
}
.page-inner {
  max-width: 1276px;
}
.eyebrow {
  font: 10px var(--mono);
  letter-spacing: .1em;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
h1 {
  font: 500 clamp(28px, 2.7vw, 38px)/1.2 var(--display);
  letter-spacing: -.045em;
  max-width: 650px;
}
.progress-card {
  padding: 12px;
  margin-bottom: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}
.progress-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
}
.progress-heading strong {
  font-size: 13px;
  font-weight: 500;
}
.xp-badge {
  border-radius: 6px;
  padding: 4px 7px;
  font: 10px var(--mono);
  background: var(--yellow-soft);
  color: var(--yellow);
  white-space: nowrap;
}
.progress-numbers {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px;
  font-size: 11px;
  color: var(--ink-3);
  margin-top: 15px;
}
#progress-count {
  color: var(--ink);
  font-weight: 500;
}
#progress-percent {
  font: 10px var(--mono);
}
progress {
  display: block;
  appearance: none;
  margin-top: 8px;
  width: 100%;
  height: 7px;
  border: 0;
  border-radius: 8px;
  background: var(--line);
  overflow: hidden;
}
progress::-webkit-progress-bar {
  background: var(--line);
}
progress::-webkit-progress-value {
  background: var(--good);
  border-radius: 8px;
}
progress::-moz-progress-bar {
  background: var(--good);
}
#progress-copy {
  color: var(--ink-3);
  font-size: 11px;
  margin-top: 10px;
}
.learning-menu {
  min-width: 0;
  overflow-y: auto;
  background: var(--surface);
  border-right: 1px solid var(--line);
}
.learning-menu > summary {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px;
  background: var(--surface);
  color: var(--ink-2);
  font-size: 12px;
  list-style: none;
  cursor: pointer;
}
.learning-menu > summary::-webkit-details-marker {
  display: none;
}
.learning-menu > summary:hover {
  color: var(--blue);
  background: var(--blue-soft);
}
.learning-menu:not([open]) .menu-label {
  display: none;
}
.side {
  min-width: 0;
  padding: 8px 16px 28px;
}
.curriculum {
  padding: 0;
}
.section-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 0 4px;
}
.section-label h2 {
  font-size: 14px;
  letter-spacing: -.02em;
  font-weight: 500;
}
#lesson-count {
  color: var(--ink-3);
  font-size: 10px;
  white-space: nowrap;
}
.path-caption {
  font-size: 11px;
  color: var(--ink-3);
  padding: 5px 4px 16px;
}
.module {
  border-top: 1px solid var(--line);
  padding: 9px 0;
}
.module:last-child {
  padding-bottom: 0;
}
.module summary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 3px;
  list-style: none;
  color: var(--ink-2);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 5px;
}
.module summary::-webkit-details-marker {
  display: none;
}
.module summary:hover {
  color: var(--blue);
}
.module-number {
  display: grid;
  place-items: center;
  width: 25px;
  height: 25px;
  flex-shrink: 0;
  font: 10px var(--mono);
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink-3);
}
.module.active .module-number {
  color: var(--blue);
  background: var(--blue-soft);
  border-color: var(--blue);
}
.module.active summary {
  color: var(--blue);
}
.module-chevron {
  margin-left: auto;
  font-size: 17px;
  color: var(--ink-3);
}
.module[open] .module-chevron {
  transform: rotate(90deg);
}
.module-lessons {
  display: grid;
  gap: 3px;
  margin: 7px 0 4px 14px;
  padding-left: 9px;
  border-left: 1px solid var(--line);
}
.lesson-link {
  position: relative;
  display: flex;
  gap: 7px;
  text-align: left;
  align-items: flex-start;
  background: none;
  border: 0;
  padding: 9px 7px;
  color: var(--ink-2);
  width: 100%;
  font-size: 12px;
  line-height: 1.5;
  border-radius: 6px;
}
.lesson-link:hover {
  color: var(--blue);
  background: var(--blue-soft);
}
.lesson-link.selected {
  color: var(--blue);
  background: var(--blue-soft);
  font-weight: 500;
}
.lesson-dot {
  color: var(--good);
  width: 14px;
  flex-shrink: 0;
}
.content,
.workspace {
  min-width: 0;
}
.workspace {
  scroll-margin-top: 25px;
}
.workspace:focus {
  outline: none;
}
.lesson-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 6px 25px color-mix(in srgb, var(--ink) 3%, transparent);
}
.lesson-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 15px 24px;
  background: var(--blue-soft);
  color: var(--blue);
  font-size: 12px;
  border-bottom: 1px solid var(--line);
}
#lesson-duration {
  color: var(--ink-2);
  font-size: 11px;
  white-space: nowrap;
}
.lesson-body {
  padding: 24px 26px 22px;
}
.lesson-heading h1 {
  font-size: 29px;
  max-width: none;
}
.concept-help {
  margin-top: 16px;
}
.concept-help summary {
  color: var(--blue);
  font-size: 13px;
  cursor: pointer;
}
.lesson-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
h2 {
  font: 500 29px/1.3 var(--display);
  letter-spacing: -.035em;
}
.pill {
  color: var(--good);
  background: var(--good-soft);
  border-radius: 99px;
  padding: 5px 9px;
  font-size: 10px;
  white-space: nowrap;
}
.concept {
  color: var(--ink-2);
  font-size: 16px;
  line-height: 1.85;
  margin-top: 13px;
  max-width: 76ch;
}
.task {
  display: flex;
  align-items: start;
  gap: 12px;
  padding: 15px 17px;
  background: var(--blue-soft);
  border-radius: 8px;
  margin-top: 20px;
}
.task-icon {
  color: var(--blue);
  font-size: 23px;
  line-height: 1.3;
}
.task h3 {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 4px;
}
.task p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-2);
}
.exercise-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  padding: 0 26px 25px;
  align-items: start;
}
.query-section,
.results-section {
  min-width: 0;
  display: grid;
  gap: 12px;
}
.step-heading {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
}
.step-heading h3 {
  font-size: 13px;
  font-weight: 500;
}
.step-heading > span:last-child:not(.step-number) {
  color: var(--ink-3);
  font-size: 10px;
  margin-left: auto;
}
.step-number {
  display: grid;
  place-items: center;
  width: 23px;
  height: 23px;
  font: 11px var(--mono);
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 50%;
}
.panel {
  position: relative;
  min-width: 0;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: var(--surface);
  overflow: hidden;
}
.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  background: var(--paper-2);
  border-bottom: 1px solid var(--line);
  padding: 10px 12px;
}
.editor-toolbar label {
  display: flex;
  align-items: center;
  gap: 6px;
  font: 10px var(--mono);
  color: var(--ink-3);
}
.editor-toolbar label .icon {
  width: 14px;
  height: 14px;
}
.editor-toolbar > div {
  display: flex;
  align-items: center;
  gap: 12px;
}
.dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  background: var(--good);
  border-radius: 50%;
}
.engine-tag {
  color: var(--ink-3);
  font: 9px var(--mono);
  display: flex;
  align-items: center;
  gap: 5px;
}
.text-button {
  background: none;
  border: 0;
  color: var(--ink-3);
  padding: 5px 0;
  font-size: 11px;
  min-height: 28px;
}
.text-button:hover {
  color: var(--blue);
}
.code-area {
  display: flex;
  gap: 13px;
  padding: 18px 12px;
  min-height: 172px;
  background: var(--surface);
}
#line-numbers {
  color: var(--ink-3);
  font: 13px/1.85 var(--mono);
  min-width: 13px;
  text-align: right;
  max-height: 300px;
  overflow: hidden;
  user-select: none;
}
textarea {
  width: 100%;
  min-width: 0;
  min-height: 136px;
  max-height: 500px;
  resize: vertical;
  border: 0;
  outline: 0;
  background: none;
  color: var(--blue);
  font: 13px/1.85 var(--mono);
  padding: 0;
  tab-size: 2;
  white-space: pre;
}
.code-area:focus-within {
  box-shadow: inset 0 0 0 2px var(--blue);
}
.editor-footer {
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 10px;
}
.hint-button {
  background: none;
  border: 0;
  color: var(--ink-2);
  min-height: 38px;
  padding: 4px;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 5px;
}
.hint-button span {
  font-size: 11px;
}
.hint-button:hover {
  color: var(--blue);
}
.run-button,
.next-button {
  background: var(--blue);
  color: var(--button-ink);
  border: 0;
  border-radius: 7px;
  min-height: 40px;
  padding: 9px 14px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  transition: background-color 150ms;
}
.run-button:hover,
.next-button:hover {
  background: var(--button-hover);
}
.next-button {
  background: var(--good);
  color: var(--surface);
  justify-self: end;
}
.next-button:hover {
  background: color-mix(in srgb, var(--good) 88%, var(--ink));
}
:root[data-theme=dark] .next-button {
  color: #11271b;
}
.editor-note {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  color: var(--ink-3);
  font-size: 10px;
}
.shortcut {
  white-space: nowrap;
  font: 8px var(--mono);
}
.hint,
.feedback {
  border: 1px solid color-mix(in srgb, var(--yellow) 30%, transparent);
  background: var(--yellow-soft);
  color: var(--yellow);
  padding: 13px 15px;
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.7;
}
.feedback.success {
  color: var(--good);
  background: var(--good-soft);
  border-color: color-mix(in srgb, var(--good) 25%, transparent);
}
.feedback.error {
  color: var(--bad);
  border-color: color-mix(in srgb, var(--bad) 25%, transparent);
  background: color-mix(in srgb, var(--bad) 6%, var(--surface));
}
.results-bar {
  padding: 0 12px;
  gap: 0 10px;
  flex-wrap: wrap;
}
.results-bar [role=tablist] {
  display: flex;
  gap: 13px;
}
.results-bar button {
  color: var(--ink-3);
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 15px 0 13px;
  font-size: 11px;
  white-space: nowrap;
}
.results-bar button[aria-selected=true] {
  color: var(--blue);
  border-bottom-color: var(--blue);
  font-weight: 500;
}
#row-count {
  color: var(--ink-3);
  font: 9px var(--mono);
  padding: 8px 0;
  margin-left: auto;
  white-space: nowrap;
}
.data-selector {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  padding: 9px 12px;
  border-bottom: 1px solid var(--line);
}
#table-panel {
  overflow: auto;
  min-height: 175px;
  max-height: 260px;
}
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 12px;
  white-space: nowrap;
}
th,
td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  padding: 10px 12px;
}
th {
  position: sticky;
  top: 0;
  background: var(--paper);
  color: var(--ink-3);
  font: 10px var(--mono);
}
td {
  color: var(--ink-2);
}
tbody tr:hover {
  background: var(--blue-soft);
}
tr:last-child td {
  border-bottom: 0;
}
.null {
  color: var(--ink-3);
  font-style: italic;
}
.empty {
  color: var(--ink-3);
  font-size: 12px;
  padding: 35px 16px;
  text-align: center;
  line-height: 1.9;
}
.table-footer {
  padding: 10px 12px;
  color: var(--ink-3);
  font-size: 10px;
  border-top: 1px solid var(--line);
  background: var(--paper);
}
.lesson-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 16px 3px;
  font-size: 11px;
  color: var(--ink-3);
}
.reference-link {
  background: none;
  border: 0;
  color: var(--blue);
  font-size: 11px;
  padding: 5px 0;
  min-height: 28px;
}
.reference-link span {
  margin-left: 5px;
}
.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--line);
  margin-top: 24px;
  padding-top: 17px;
  font-size: 11px;
  color: var(--ink-3);
}
.footer-divider {
  margin: 0 7px;
}
dialog {
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 14px;
  width: min(760px, calc(100% - 32px));
  max-height: 85vh;
  padding: 26px;
  box-shadow: var(--shadow);
}
dialog::backdrop {
  background: #07132188;
  backdrop-filter: blur(4px);
}
.dialog-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 20px;
}
.dialog-heading button {
  background: var(--paper-2);
  color: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  width: 36px;
  height: 36px;
  font-size: 24px;
  flex-shrink: 0;
}
dialog > p {
  color: var(--ink-2);
  font-size: 13px;
  margin-top: 15px;
  line-height: 1.8;
}
.reference-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 20px;
}
.reference-grid article {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  overflow: auto;
}
.reference-grid h3 {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 12px;
}
.reference-grid pre {
  margin: 0;
  font: 11px/1.8 var(--mono);
  color: var(--blue);
}
.reference-tip {
  border-top: 1px solid var(--line);
  padding-top: 15px;
}
@media (max-width: 1250px) {
  .header-inner {
    gap: 16px;
  }
  .header-inner,
  .page {
    padding-inline: 24px;
  }
  .nav {
    gap: 4px;
  }
  .nav a,
  .nav button {
    padding: 10px 11px;
  }
}
@media (min-width: 801px) and (max-width: 1320px) {
  .nav .icon {
    display: none;
  }
}
@media (max-width: 800px) {
  body {
    display: block;
    height: auto;
  }
  .app-layout {
    display: block;
  }
  .header-inner {
    gap: 16px;
    flex-wrap: wrap;
    padding: 16px 20px 0;
  }
  .nav {
    order: 3;
    width: 100%;
    gap: 8px;
    border-top: 1px solid var(--line);
    padding: 10px 0;
  }
  .nav a,
  .nav button {
    font-size: 13px;
    padding: 8px 12px;
  }
  .theme-toggle {
    margin-left: auto;
  }
  .progress-numbers {
    margin-top: 10px;
  }
  .learning-menu {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .learning-menu:not([open]) .menu-label {
    display: inline;
  }
  .learning-menu .side {
    max-height: 65dvh;
    overflow-y: auto;
  }
  .page {
    overflow: visible;
    padding: 24px 20px 20px;
  }
  h1 {
    font-size: 32px;
  }
  textarea,
  #line-numbers {
    font-size: 16px;
  }
  .lesson-bottom {
    align-items: start;
    flex-direction: column;
    gap: 8px;
  }
}
@media (max-width: 480px) {
  .header-inner {
    padding-inline: 16px;
    gap: 14px;
  }
  .brand {
    font-size: 20px;
  }
  .brand-mark {
    width: 31px;
    height: 31px;
    border-radius: 8px;
  }
  .theme-toggle {
    padding: 8px 10px;
    min-height: 36px;
    font-size: 11px;
  }
  .theme-toggle .icon {
    width: 15px;
    height: 15px;
  }
  .nav {
    gap: 3px;
    justify-content: space-between;
  }
  .nav a,
  .nav button {
    font-size: 12px;
    padding: 8px;
    gap: 5px;
  }
  .nav .icon {
    width: 15px;
    height: 15px;
  }
  .page {
    padding-inline: 16px;
  }
  .eyebrow {
    font-size: 9px;
    letter-spacing: .06em;
  }
  .lesson-heading h1 {
    font-size: 26px;
  }
  .lesson-topline {
    padding: 13px 16px;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 11px;
  }
  .lesson-body {
    padding: 18px 16px;
  }
  h2 {
    font-size: 26px;
  }
  .concept {
    font-size: 15px;
  }
  .task {
    padding: 13px;
    gap: 9px;
  }
  .task p {
    font-size: 14px;
  }
  .exercise-grid {
    padding: 0 16px 20px;
  }
  .step-heading > span:last-child:not(.step-number) {
    display: none;
  }
  .editor-toolbar > div {
    gap: 8px;
  }
  .engine-tag {
    font-size: 8px;
  }
  .editor-footer {
    padding: 9px;
  }
  .hint-button span {
    font-size: 10px;
  }
  .run-button {
    font-size: 11px;
    padding: 9px 11px;
  }
  .editor-note {
    flex-wrap: wrap;
    font-size: 9px;
  }
  .footer {
    font-size: 10px;
    align-items: start;
  }
  .reference-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  dialog {
    padding: 20px;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}
.level-section {
  margin-bottom: 24px;
}
.level-section h2 {
  font-size: 14px;
  margin-bottom: 10px;
}
.level-list {
  display: grid;
  gap: 5px;
}
.level-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  font-size: 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
}
.level-card:hover,
.level-card.active {
  border-color: var(--blue);
}
.level-card.active {
  background: color-mix(in srgb, var(--blue) 5%, var(--surface));
}
.level-progress {
  color: var(--ink-3);
  font: 10px var(--mono);
  white-space: nowrap;
}
#lab-note {
  font-size: 12px;
  color: var(--blue);
  margin-top: 12px;
}
.lab-verification {
  margin-top: 14px;
  color: var(--ink-2);
  font-size: 12px;
}
.lab-verification summary,
.schema-details summary {
  cursor: pointer;
}
.lab-verification pre {
  overflow: auto;
  max-height: 200px;
  background: var(--paper);
  padding: 12px;
  border-radius: 6px;
  font: 11px/1.8 var(--mono);
}
.data-selector {
  align-items: center;
}
.data-selector label {
  font-size: 10px;
  color: var(--ink-3);
}
.data-selector select {
  min-width: 0;
  max-width: 100%;
  flex: 1;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  padding: 6px;
  background: var(--surface);
  color: var(--ink-2);
  font: 11px var(--mono);
}
.schema-details {
  font-size: 10px;
  color: var(--ink-3);
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
}
.schema-details dl {
  display: grid;
  gap: 5px;
  margin: 10px 0 4px;
}
.schema-details dl > div {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}
.schema-details dt {
  font-family: var(--mono);
  color: var(--ink-2);
}
.schema-details dd {
  margin: 0;
}
@media (max-width: 800px) {
  .data-selector select {
    font-size: 16px;
  }
}
.level-guide {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.level-guide h2 {
  font-size: 14px;
  margin-top: 12px;
}
.level-guide > div > p {
  color: var(--ink-2);
  margin-top: 7px;
  font-size: 12px;
  line-height: 1.7;
}
.level-guide .level-requires {
  color: var(--ink-3);
  font-size: 12px;
}
.level-guide details {
  border-top: 1px solid var(--line);
  margin-top: 15px;
  padding-top: 12px;
}
.level-guide summary {
  cursor: pointer;
  color: var(--blue);
  font-size: 12px;
}
#checkpoint-progress {
  display: block;
  margin-top: 6px;
  color: var(--ink-3);
  font-size: 11px;
}
#level-outcomes {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}
#level-outcomes li {
  display: flex;
  align-items: start;
  gap: 12px;
}
#level-outcomes strong {
  font-size: 13px;
  font-weight: 500;
}
#level-outcomes p {
  font-size: 12px;
  color: var(--ink-2);
  line-height: 1.7;
  margin-top: 3px;
}
.outcome-progress {
  background: var(--good-soft);
  color: var(--good);
  border-radius: 5px;
  font: 10px var(--mono);
  padding: 5px 7px;
  white-space: nowrap;
  margin-top: 2px;
}
.module-outcome {
  font-size: 11px;
  line-height: 1.7;
  color: var(--ink-3);
  padding: 5px 7px;
}
#checkpoint-note {
  margin-top: 12px;
  font-size: 12px;
  color: var(--blue);
}
@media (max-width: 480px) {
  #checkpoint-progress {
    float: none;
    display: block;
    margin: 6px 0 0 16px;
  }
}
.interview-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 25px;
}
.interview-heading h1 {
  font-size: 25px;
}
.interview-heading p {
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.8;
  max-width: 78ch;
  margin-top: 8px;
}
.interview-heading > a {
  flex-shrink: 0;
}
.mock-rounds {
  padding: 22px;
  border-radius: 12px;
  background: var(--blue-soft);
  border: 1px solid var(--line);
}
.mock-rounds > h3,
.mock-review h3 {
  font-size: 17px;
  font-weight: 500;
}
.mock-rounds > p,
.mock-review > p {
  font-size: 12px;
  color: var(--ink-2);
  line-height: 1.8;
  margin-top: 5px;
}
.round-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 15px;
  margin-top: 18px;
}
.round-card {
  display: flex;
  flex-direction: column;
  align-items: start;
  padding: 18px;
  background: var(--surface);
  border-radius: 10px;
  border: 1px solid var(--line);
}
.round-duration {
  font: 10px var(--mono);
  color: var(--blue);
}
.round-card h4 {
  margin: 10px 0 6px;
  font-size: 16px;
  font-weight: 500;
}
.round-card p {
  font-size: 12px;
  line-height: 1.8;
  color: var(--ink-2);
  margin-bottom: 17px;
  flex: 1;
}
.small-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--blue);
  color: var(--button-ink);
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 9px 12px;
  font-size: 12px;
  min-height: 38px;
}
.small-button:hover {
  background: var(--button-hover);
}
.bank-controls {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 22px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.bank-switch {
  display: inline-flex;
  border: 1px solid var(--line);
  padding: 4px;
  border-radius: 9px;
  background: var(--surface);
  gap: 3px;
}
.bank-switch button {
  background: transparent;
  border: 0;
  border-radius: 6px;
  padding: 11px 14px;
  font-size: 13px;
  color: var(--ink-2);
}
.bank-switch button[aria-pressed=true] {
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 500;
}
.interview-filters {
  display: flex;
  align-items: end;
  gap: 12px;
}
.interview-filters label,
.round-picker {
  display: grid;
  gap: 5px;
  color: var(--ink-3);
  font-size: 11px;
  min-width: 0;
}
.interview-filters select,
.round-picker select {
  border: 1px solid var(--line-strong);
  background: var(--surface);
  border-radius: 7px;
  padding: 9px 10px;
  font-size: 13px;
  color: var(--ink);
  min-width: 0;
  max-width: 100%;
}
.bank-count {
  font-size: 12px;
  color: var(--ink-3);
  margin: 18px 0 13px;
}
.challenge-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 15px;
}
.challenge-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 11px;
  padding: 20px;
}
.challenge-card:hover {
  border-color: var(--blue);
}
.challenge-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--ink-3);
}
.challenge-card h3 {
  font-size: 18px;
  font-weight: 500;
  line-height: 1.4;
  margin: 16px 0 6px;
}
.challenge-card p {
  font-size: 12px;
  color: var(--ink-2);
  flex: 1;
}
.challenge-action {
  color: var(--blue);
  font-size: 12px;
  margin-top: 24px;
}
.discussion-note {
  font-size: 13px;
  color: var(--ink-2);
  margin: 0 0 16px;
}
.discussion-list {
  display: grid;
  gap: 10px;
}
.discussion-question {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.discussion-question summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 22px;
  cursor: pointer;
  list-style: none;
}
.discussion-question summary::-webkit-details-marker {
  display: none;
}
.discussion-question summary small {
  display: block;
  font-size: 10px;
  color: var(--blue);
  margin-bottom: 5px;
}
.discussion-question summary strong {
  font-size: 16px;
  font-weight: 500;
}
.discussion-mark {
  color: var(--blue);
  font-size: 20px;
}
.discussion-answer {
  padding: 0 22px 22px;
  max-width: 90ch;
}
.discussion-answer h4 {
  font-size: 13px;
  margin: 14px 0 6px;
  font-weight: 500;
}
.discussion-answer p {
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.9;
}
.discussion-answer button {
  margin-top: 18px;
}
.interview-sources {
  color: var(--ink-3);
  font-size: 12px;
  margin: 25px 0;
}
.interview-sources summary {
  cursor: pointer;
}
.interview-sources p {
  margin-top: 12px;
  line-height: 1.8;
}
.interview-sources a {
  color: var(--blue);
}
.interview-back {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
  font-size: 12px;
  color: var(--ink-3);
  margin-bottom: 18px;
}
.interview-back a {
  color: var(--blue);
}
.interview-answer {
  background: var(--good-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 17px;
  margin-top: 20px;
}
.interview-answer summary {
  font-size: 13px;
  color: var(--good);
  cursor: pointer;
}
.interview-answer p {
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.9;
  margin-top: 12px;
}
.interview-answer pre {
  max-height: 420px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 15px;
  overflow: auto;
  font: 12px/1.8 var(--mono);
  color: var(--blue);
}
.mock-session {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 15px;
  align-items: center;
  padding: 20px 22px;
  margin-bottom: 24px;
  border: 1px solid var(--blue);
  border-radius: 12px;
  background: var(--surface);
}
.mock-session strong {
  font-size: 16px;
  font-weight: 500;
}
.mock-session p {
  font-size: 12px;
  color: var(--ink-2);
  margin-top: 5px;
}
.mock-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 15px;
}
.mock-actions a {
  font-size: 12px;
  color: var(--blue);
}
#mock-clock {
  font: 22px var(--mono);
  color: var(--blue);
}
.round-picker {
  grid-column: 1 / -1;
}
.mock-review {
  margin-top: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
}
.mock-review ul {
  list-style: none;
  margin: 15px 0 0;
  padding: 0;
}
.mock-review li {
  border-top: 1px solid var(--line);
}
.mock-review li a {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 13px 0;
  font-size: 13px;
}
.mock-review li span {
  color: var(--blue);
  font-size: 11px;
  flex-shrink: 0;
}
@media (max-width: 1000px) {
  .challenge-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 800px) {
  .interview-heading {
    flex-direction: column;
    gap: 10px;
  }
  .round-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .mock-session {
    grid-template-columns: minmax(0, 1fr);
  }
  .interview-filters select,
  .round-picker select {
    font-size: 16px;
  }
  .nav {
    flex-wrap: wrap;
    justify-content: start;
  }
  .nav a,
  .nav button {
    font-size: 12px;
    padding: 8px;
    gap: 4px;
  }
}
@media (max-width: 480px) {
  .challenge-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .interview-filters {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1.4fr;
  }
  .bank-switch {
    width: 100%;
  }
  .bank-switch button {
    flex: 1;
    padding-inline: 9px;
    font-size: 12px;
  }
  .mock-rounds,
  .mock-review,
  .mock-session {
    padding: 17px;
  }
  .interview-back {
    align-items: start;
    flex-direction: column;
    gap: 6px;
  }
  .mock-review li a {
    flex-direction: column;
    gap: 5px;
  }
}
.dashboard-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
  margin-bottom: 26px;
}
.dashboard-heading h1 {
  max-width: none;
}
.dashboard-heading p:not(.eyebrow) {
  color: var(--ink-2);
  font-size: 14px;
  margin-top: 10px;
}
.dashboard-status {
  max-width: 300px;
  color: var(--ink-3);
  font-size: 11px;
}
.dashboard-hero {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 20px;
}
.player-card,
.next-quest {
  border-radius: 16px;
  padding: 26px;
}
.player-card {
  background: #152c4a;
  color: #f5f8fc;
  border: 1px solid #314b6c;
}
.player-rank {
  display: flex;
  align-items: center;
  gap: 22px;
}
.rank-emblem {
  display: grid;
  place-items: center;
  width: 100px;
  height: 100px;
  flex-shrink: 0;
  border: 2px solid #f4ce60;
  border-radius: 50%;
  color: #f4ce60;
  font-size: 65px;
  background: #213954;
  box-shadow: 0 0 0 7px #f4ce6012;
}
.player-card .eyebrow {
  color: #c7d6e6;
  margin-bottom: 0;
}
#player-level {
  display: block;
  font: 500 48px/1.2 var(--mono);
}
.player-rank p:last-child {
  color: #c7d6e6;
  font-size: 13px;
}
.player-xp {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  color: #e5edf6;
  font: 10px var(--mono);
  margin-top: 25px;
}
#player-progress {
  background: #3a4d67;
  height: 10px;
}
#player-progress::-webkit-progress-bar {
  background: #3a4d67;
}
#player-progress::-webkit-progress-value {
  background: #f4ce60;
}
#player-progress::-moz-progress-bar {
  background: #f4ce60;
}
.player-note {
  color: #c7d6e6;
  font-size: 11px;
  margin-top: 12px;
}
.next-quest {
  background: var(--surface);
  border: 1px solid var(--line-strong);
  display: flex;
  flex-direction: column;
  align-items: start;
}
.next-quest h2 {
  font-size: 26px;
}
.next-quest > p:not(.eyebrow) {
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.8;
  margin: 12px 0 22px;
  flex: 1;
}
.next-quest .small-button {
  font-size: 13px;
  padding: 12px 18px;
}
#next-quest-meta {
  color: var(--ink-3);
  font-size: 10px;
  margin-top: 12px;
}
.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 20px 0 32px;
}
.dashboard-stats > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 17px 20px;
  background: var(--surface);
}
.dashboard-stats span {
  font-size: 12px;
  color: var(--ink-2);
}
.dashboard-stats strong {
  font: 500 22px var(--mono);
  color: var(--blue);
  white-space: nowrap;
}
.dashboard-section {
  min-width: 0;
}
.dashboard-section-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin-bottom: 17px;
}
.dashboard-section-heading h2,
.leaderboard-panel h2 {
  font-size: 23px;
}
.dashboard-section-heading p:not(.eyebrow),
.dashboard-section-heading > span {
  font-size: 11px;
  color: var(--ink-3);
}
.track-map {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 15px;
}
.world-card {
  display: flex;
  flex-direction: column;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 13px;
}
.world-complete {
  border-color: var(--good);
}
.world-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--ink-3);
  font-size: 10px;
}
.world-number {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  color: var(--blue);
  background: var(--blue-soft);
  font: 14px var(--mono);
}
.world-card h3 {
  font-size: 19px;
  font-weight: 500;
  margin: 14px 0 8px;
}
.world-card > p {
  color: var(--ink-2);
  font-size: 12px;
  line-height: 1.8;
  flex: 1;
}
.world-progress {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 10px;
  color: var(--ink-3);
  margin-top: 22px;
}
.world-progress strong {
  color: var(--good);
  font-weight: 500;
}
.world-action {
  color: var(--blue);
  font-size: 12px;
  padding: 15px 0;
  margin-top: 6px;
}
.world-card details {
  border-top: 1px solid var(--line);
  padding-top: 12px;
  font-size: 11px;
}
.world-card summary {
  cursor: pointer;
  color: var(--ink-2);
}
.world-card ul {
  list-style: none;
  padding: 0;
  margin: 10px 0 0;
}
.world-card li a {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 8px;
  padding: 9px 0;
  color: var(--ink-2);
}
.world-card li a:hover {
  color: var(--blue);
}
.world-card small {
  color: var(--ink-3);
  white-space: nowrap;
}
.dashboard-bottom {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 20px;
  margin-top: 28px;
}
.achievements-panel,
.leaderboard-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 22px;
}
.achievement-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.achievement {
  text-align: center;
  min-width: 0;
  padding: 13px 7px;
  border: 1px dashed var(--line-strong);
  border-radius: 10px;
  background: var(--paper);
}
.achievement.earned {
  border-style: solid;
  border-color: color-mix(in srgb, var(--yellow) 35%, var(--line));
  background: var(--yellow-soft);
}
.achievement-icon {
  display: block;
  font-size: 30px;
  color: var(--ink-4);
}
.earned .achievement-icon,
.earned small {
  color: var(--yellow);
}
.achievement h3 {
  font-size: 11px;
  line-height: 1.5;
  margin: 6px 0;
  font-weight: 500;
}
.achievement p {
  color: var(--ink-3);
  font-size: 10px;
  line-height: 1.6;
}
.achievement small {
  display: block;
  font-size: 9px;
  color: var(--ink-3);
  margin-top: 10px;
}
.dashboard-extras {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}
.dashboard-extras a {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}
.dashboard-extras a > span {
  color: var(--blue);
  font-size: 24px;
}
.dashboard-extras a > span:last-child {
  margin-left: auto;
}
.dashboard-extras strong {
  font-size: 14px;
  font-weight: 500;
}
.dashboard-extras p {
  font-size: 12px;
  color: var(--ink-3);
  margin-top: 4px;
}
#dashboard:focus {
  outline: none;
}
@media (max-width: 1150px) {
  .header-inner {
    flex-wrap: wrap;
    padding-bottom: 0;
  }
  .nav {
    order: 3;
    width: 100%;
    flex-wrap: wrap;
    border-top: 1px solid var(--line);
    padding: 10px 0;
  }
  .dashboard-heading {
    align-items: start;
    flex-direction: column;
    gap: 8px;
  }
  .dashboard-hero {
    grid-template-columns: minmax(0, 1fr);
  }
  .track-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .dashboard-stats > div {
    align-items: start;
    flex-direction: column;
    gap: 6px;
  }
  .dashboard-bottom {
    grid-template-columns: minmax(0, 1fr);
  }
}
@media (max-width: 800px) {
  .dashboard-extras {
    grid-template-columns: minmax(0, 1fr);
  }
  .dashboard-section-heading {
    align-items: start;
    flex-direction: column;
    gap: 8px;
  }
  .achievement-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 480px) {
  .track-map {
    grid-template-columns: minmax(0, 1fr);
  }
  .dashboard-stats {
    gap: 8px;
  }
  .dashboard-stats > div {
    padding: 12px 10px;
  }
  .dashboard-stats span {
    font-size: 10px;
  }
  .dashboard-stats strong {
    font-size: 17px;
  }
  .player-card,
  .next-quest {
    padding: 22px;
  }
  .dashboard-heading h1 {
    font-size: 29px;
  }
}
.score-note {
  color: var(--ink-3);
  font-size: 11px;
  line-height: 1.8;
  margin: 12px 0;
}
.score-empty {
  text-align: center;
  padding: 28px 6px 12px;
}
.score-empty > span {
  color: var(--yellow);
  font-size: 46px;
}
.score-empty h3 {
  font-size: 15px;
  font-weight: 500;
  margin: 12px 0 8px;
}
.score-empty p {
  font-size: 12px;
  color: var(--ink-3);
  line-height: 1.8;
  margin-bottom: 20px;
}
.score-table {
  overflow-x: auto;
  margin-top: 20px;
}
.score-table table {
  font-size: 11px;
}
.score-table th,
.score-table td {
  padding: 11px 6px;
}
.score-table th[scope=row] {
  position: static;
  background: transparent;
  color: var(--ink-2);
  font: 12px var(--sans);
  white-space: normal;
  min-width: 100px;
}
.score-table small {
  display: block;
  color: var(--ink-3);
  font-size: 9px;
  margin-top: 5px;
}
.daily-overview {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 20px;
  margin: 0 0 32px;
}
.daily-feature,
.shared-leaderboard,
.daily-intro {
  min-width: 0;
  padding: 25px;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: var(--surface);
}
.daily-feature {
  background: var(--yellow-soft);
}
.daily-feature h2 {
  font-size: 27px;
  margin: 8px 0;
}
.daily-feature > p:not(.eyebrow) {
  color: var(--ink-2);
  font-size: 13px;
}
.daily-feature > .small-button {
  margin: 18px 0 12px;
}
.daily-feature > .score-note {
  display: block;
}
.daily-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  padding: 20px 0;
  margin-top: 12px;
  border-top: 1px solid var(--line-strong);
}
.daily-stats span {
  display: block;
  color: var(--ink-2);
  font-size: 10px;
}
.daily-stats strong {
  display: block;
  margin-top: 5px;
  font: 500 20px var(--mono);
}
.shared-leaderboard h2 {
  font-size: 23px;
}
.shared-leaderboard .score-empty {
  padding: 12px 0;
}
.your-score {
  background: var(--blue-soft);
}
.daily-intro h2 {
  font-size: 25px;
}
.daily-intro > p {
  color: var(--ink-2);
  margin: 12px 0;
}
.daily-intro .small-button {
  margin-top: 12px;
}
.daily-intro > .reference-link {
  display: inline-block;
  margin-left: 18px;
}
#player-form {
  margin-top: 22px;
  max-width: 560px;
}
#player-form label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}
.nickname-controls {
  display: flex;
  gap: 12px;
  align-items: center;
}
.nickname-controls input {
  min-width: 0;
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--page);
  padding: 11px 12px;
}
.nickname-controls .small-button {
  flex-shrink: 0;
  margin-top: 0;
}
#daily-ready {
  margin-top: 20px;
}
#daily-query {
  display: block;
  width: 100%;
  min-height: 200px;
  padding: 20px;
  resize: vertical;
  border: 0;
  outline-offset: -3px;
  background: transparent;
  color: var(--ink);
  font: 14px/1.8 var(--mono);
  tab-size: 2;
}
#daily-table-content {
  overflow: auto;
  max-height: 420px;
}
#daily-message {
  margin-bottom: 20px;
}
#daily-clock {
  font-family: var(--mono);
}
#daily-answers {
  padding-left: 24px;
}
#daily-answers li {
  padding: 12px 0;
}
#daily-answers .reference-link {
  display: block;
  margin-top: 8px;
}
#daily-answers p {
  color: var(--ink-2);
  font-size: 13px;
}
#daily-challenge:focus {
  outline: none;
}
@media (max-width: 1150px) {
  .daily-overview {
    grid-template-columns: minmax(0, 1fr);
  }
}
@media (max-width: 500px) {
  .daily-feature,
  .shared-leaderboard,
  .daily-intro {
    padding: 20px 16px;
  }
  .nickname-controls {
    flex-direction: column;
    align-items: stretch;
  }
  .daily-stats {
    gap: 8px;
  }
  .daily-stats strong {
    font-size: 17px;
  }
  #daily-query {
    padding: 15px;
  }
}
.score-rank {
  color: var(--yellow);
  font: 15px var(--mono);
}
.practice-rankings,
.accuracy-history {
  margin-bottom: 32px;
}
.practice-board-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.practice-board-grid h3 {
  font-size: 23px;
  font-weight: 500;
}
.your-practice-stat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.your-practice-stat span {
  color: var(--ink-2);
  font-size: 12px;
}
.your-practice-stat strong {
  color: var(--blue);
  font: 500 24px var(--mono);
}
.ranking-identity {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
  color: var(--ink-2);
  font-size: 12px;
}
.ranking-profile-form {
  max-width: 560px;
  margin: 16px 0 24px;
}
.ranking-profile-form label {
  display: block;
  margin-bottom: 8px;
}
.practice-score-rules {
  margin-top: 16px;
  color: var(--ink-3);
  font-size: 12px;
}
.practice-score-rules summary {
  cursor: pointer;
  color: var(--blue);
}
.practice-score-rules p {
  margin-top: 10px;
  max-width: 100ch;
}
.practice-sync {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 12px 16px;
  margin-bottom: 20px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--blue-soft);
  font-size: 12px;
}
.accuracy-history {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
}
.accuracy-chart {
  display: block;
  width: 100%;
  height: 150px;
  overflow: visible;
}
.accuracy-chart text {
  fill: var(--ink-3);
  font: 11px var(--sans);
}
.accuracy-chart line {
  stroke: var(--line);
  stroke-dasharray: 3 4;
}
.accuracy-chart polyline {
  fill: none;
  stroke: var(--blue);
  stroke-width: 2;
}
.accuracy-chart circle {
  fill: var(--blue);
  stroke: var(--surface);
  stroke-width: 2;
}
.accuracy-days {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
  padding: 0;
  margin: 12px 0 0;
  text-align: center;
}
.accuracy-days li {
  min-width: 0;
  border-radius: 7px;
  padding: 10px 4px;
  background: var(--paper);
}
.accuracy-days time {
  display: block;
  font-size: 10px;
  color: var(--ink-3);
}
.accuracy-days strong {
  display: block;
  margin-top: 5px;
  font: 13px var(--mono);
  color: var(--blue);
}
@media (max-width: 1150px) {
  .practice-board-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}
@media (max-width: 500px) {
  .accuracy-history {
    padding: 20px 16px;
  }
  .accuracy-days {
    gap: 3px;
  }
  .accuracy-days li {
    padding: 8px 2px;
  }
  .accuracy-days time {
    font-size: 9px;
  }
  .accuracy-days strong {
    font-size: 11px;
  }
}
#pricing:focus {
  outline: none;
}
.pricing-heading {
  max-width: 760px;
  margin-bottom: 24px;
}
.pricing-heading h1 {
  max-width: none;
}
.pricing-heading > p:not(.eyebrow) {
  color: var(--ink-2);
  margin-top: 14px;
}
.pricing-heading > .reference-link {
  display: inline-flex;
  margin-top: 16px;
}
.billing-preview {
  padding: 16px 20px;
  border: 1px solid var(--blue);
  border-radius: 10px;
  background: var(--blue-soft);
  color: var(--blue);
  margin-bottom: 20px;
  font-size: 13px;
}
.billing-account {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  margin-bottom: 24px;
}
.billing-account h2 {
  font-size: 16px;
  font-weight: 500;
}
.billing-account p {
  color: var(--ink-2);
  font-size: 12px;
  margin-top: 5px;
}
.billing-account-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
#billing-message {
  margin: 0 0 24px;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.paid-plans {
  display: contents;
}
.price-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 24px 20px;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: var(--surface);
}
.price-card.recommended {
  border: 2px solid var(--blue);
  padding: 23px 19px;
  background: linear-gradient(var(--blue-soft), var(--blue-soft)), var(--surface);
}
.price-card-top {
  min-height: 132px;
}
.plan-category,
.plan-badge {
  display: inline-block;
  font: 10px var(--mono);
  letter-spacing: .05em;
  margin-bottom: 16px;
}
.plan-category {
  color: var(--ink-3);
  padding: 5px 0;
}
.plan-badge {
  color: var(--button-ink);
  background: var(--blue);
  border-radius: 5px;
  padding: 5px 8px;
}
.price-card h2 {
  font-size: 24px;
  letter-spacing: -.03em;
  font-weight: 500;
}
.plan-description {
  color: var(--ink-2);
  font-size: 12px;
  margin-top: 8px;
}
.plan-price {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 5px;
  margin-top: 20px;
}
.plan-price strong {
  font: 500 clamp(27px, 2.5vw, 36px) var(--display);
  letter-spacing: -.04em;
}
.plan-price span {
  color: var(--ink-3);
  font-size: 12px;
}
.plan-billing-note {
  font-size: 11px;
  color: var(--ink-2);
  margin-top: 8px;
  min-height: 49px;
}
.plan-saving {
  font-size: 11px;
  color: var(--blue);
  min-height: 34px;
  margin-top: 8px;
}
.plan-features {
  list-style: none;
  margin: 16px 0 24px;
  padding: 0;
  color: var(--ink-2);
  font-size: 12px;
}
.plan-features li {
  position: relative;
  padding-left: 20px;
  margin-top: 12px;
}
.plan-features li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--blue);
}
.price-card > .small-button {
  width: 100%;
  margin-top: auto;
  text-align: center;
}
.free-plan > .small-button {
  background: var(--blue-soft);
  color: var(--blue);
  border-color: var(--line-strong);
}
.pricing-terms {
  margin: 24px 0 32px;
  max-width: 90ch;
  color: var(--ink-3);
  font-size: 12px;
}
@media (max-width: 1250px) {
  .pricing-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 700px) {
  .pricing-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .billing-account {
    align-items: start;
    flex-direction: column;
  }
  .price-card-top,
  .plan-billing-note,
  .plan-saving {
    min-height: 0;
  }
  .plan-price {
    margin-top: 18px;
  }
  .plan-price strong {
    font-size: 36px;
  }
}
.problem-list {
  list-style: none;
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
}
.problem-row {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
}
.problem-row:hover {
  border-color: var(--blue);
}
.problem-mark {
  color: var(--good);
  text-align: center;
}
.problem-title {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.45;
}
.problem-meta {
  font-size: 12px;
  color: var(--ink-3);
  white-space: nowrap;
}
@media (max-width: 800px) {
  .dashboard-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .problem-row {
    grid-template-columns: 20px minmax(0, 1fr) auto;
    row-gap: 4px;
  }
  .problem-meta {
    grid-column: 2 / -1;
    grid-row: 2;
    white-space: normal;
  }
}
@media (max-width: 480px) {
  .practice-filters label:last-child {
    grid-column: 1 / -1;
  }
}
:root:not([data-view=app]) body {
  display: block;
  height: auto;
}
:root:not([data-view=app]) .app-layout,
[data-view=app] .landing,
[data-view=app] .landing-footer {
  display: none;
}
.landing,
.landing-footer {
  --serif:
    "Instrument Serif",
    "Iowan Old Style",
    Georgia,
    serif;
  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  --grid-line: rgba(18, 100, 163, .075);
  --code-bg: #0d1622;
  --code-ink: #dbe6f2;
  --code-key: #80c7ff;
  --code-str: #f4ce60;
  --code-num: #f7a58f;
  --code-dim: #8191a6;
  --code-good: #98d7b0;
  --dark-card: #0d1622;
  --dark-ink: #eef3f8;
  --dark-ink-2: #b3bfd0;
}
:root:not([data-theme=light]) .landing {
  --grid-line: rgba(128, 199, 255, .055);
  --code-bg: #070d15;
  --dark-card: #121d2b;
}
.landing {
  position: relative;
  overflow-x: clip;
}
.landing::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 980px;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(
      90deg,
      var(--grid-line) 1px,
      transparent 1px);
  background-size: 40px 40px;
  background-position: center -1px;
  mask-image:
    radial-gradient(
      ellipse 75% 65% at 70% 22%,
      #000 10%,
      transparent 72%);
  -webkit-mask-image:
    radial-gradient(
      ellipse 75% 65% at 70% 22%,
      #000 10%,
      transparent 72%);
}
.landing > section {
  position: relative;
  width: min(var(--wrap), 100% - 2 * var(--gutter));
  margin: 0 auto;
  padding-top: clamp(72px, 10vw, 136px);
}
.landing [data-level=beginner] {
  --level-color: var(--good);
}
.landing [data-level=intermediate] {
  --level-color: var(--blue);
}
.landing [data-level=advanced] {
  --level-color: #d79a1c;
}
.landing [data-level=expert] {
  --level-color: #e0715f;
}
.landing .kicker {
  display: flex;
  gap: 9px;
  font: 500 12px/1.4 var(--mono);
  letter-spacing: .03em;
  color: var(--ink-3);
}
.landing .kicker span {
  flex-shrink: 0;
  color: var(--blue);
}
.landing table {
  width: auto;
  font-size: inherit;
  white-space: normal;
}
.landing th {
  position: static;
  background: none;
  font: inherit;
  color: inherit;
}
.landing td {
  color: inherit;
}
.landing tbody tr:hover {
  background: none;
}
.landing p code,
.landing figcaption code {
  font: .88em var(--mono);
  color: var(--blue);
  background: var(--blue-soft);
  padding: 2px 6px;
  border-radius: 5px;
}
.landing .hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  gap: clamp(36px, 5vw, 80px);
  align-items: center;
  padding-top: clamp(44px, 7vw, 100px);
}
.hero h1 {
  margin-top: 22px;
  font: 400 clamp(48px, 6.4vw, 88px)/.98 var(--serif);
  letter-spacing: -.018em;
  text-wrap: balance;
}
.hero h1 em {
  color: var(--blue);
  background: linear-gradient(color-mix(in srgb, var(--yellow-fill) 70%, transparent) 0 0) no-repeat 0 calc(100% - .07em) / 96% .1em;
}
.hero-lede {
  margin-top: 28px;
  max-width: 33em;
  font-size: clamp(17px, 1.45vw, 19px);
  line-height: 1.65;
  color: var(--ink-2);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}
.landing .cta,
.landing .cta-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 10px;
  font-size: 16px;
  transition:
    transform 200ms var(--ease),
    background 200ms,
    border-color 200ms,
    color 200ms;
}
.landing .cta {
  background: var(--blue);
  color: var(--button-ink);
  font-weight: 600;
  box-shadow: 0 14px 34px -16px var(--blue);
}
.landing .cta:hover {
  background: var(--button-hover);
  transform: translateY(-1px);
}
.landing .cta span {
  transition: transform 200ms var(--ease);
}
.landing .cta:hover span {
  transform: translateX(3px);
}
.landing .cta-ghost {
  border: 1px solid var(--line-strong);
  color: var(--ink);
  font-weight: 500;
  background: color-mix(in srgb, var(--surface) 70%, transparent);
}
.landing .cta-ghost:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  font: 12px var(--mono);
  color: var(--ink-3);
}
.hero-facts li::before {
  content: "\2713";
  margin-right: 7px;
  color: var(--good);
}
.demo {
  position: relative;
  margin: 0;
  border-radius: 16px;
  background: var(--code-bg);
  color: var(--code-ink);
  box-shadow: 0 0 0 1px rgba(128, 199, 255, .16), 0 50px 100px -48px rgba(7, 18, 31, .7);
}
.landing .hero::before {
  content: "";
  position: absolute;
  right: -6%;
  bottom: -8%;
  width: 52%;
  height: 78%;
  border-radius: 50%;
  pointer-events: none;
  background:
    radial-gradient(
      closest-side,
      color-mix(in srgb, var(--blue) 26%, transparent),
      transparent);
  filter: blur(28px);
}
.hero-copy {
  position: relative;
}
.demo-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(174, 198, 224, .12);
  font: 12px var(--mono);
  color: var(--code-dim);
}
.demo-dots {
  display: flex;
  gap: 6px;
}
.demo-dots i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(174, 198, 224, .2);
}
.demo-engine {
  margin-left: auto;
  padding: 3px 9px;
  border-radius: 99px;
  color: var(--code-good);
  background: rgba(152, 215, 176, .1);
}
.demo-task {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 16px 20px 4px;
  font-size: 15px;
  color: var(--code-ink);
}
.demo-task span {
  flex-shrink: 0;
  font: 11px var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--code-str);
}
.landing .code {
  margin: 0;
  font: 13.5px/1.8 var(--mono);
  color: var(--code-ink);
  white-space: pre;
  overflow-x: auto;
  scrollbar-width: thin;
}
.landing .code b {
  font-weight: 500;
  color: var(--code-key);
}
.landing .code i {
  font-style: normal;
  color: var(--code-dim);
}
.landing .code s {
  text-decoration: none;
  color: var(--code-str);
}
.landing .code u {
  text-decoration: none;
  color: var(--code-num);
}
.demo-code {
  padding: 12px 20px 18px;
  counter-reset: line;
}
.demo-code .line {
  display: block;
}
.demo-code .line::before {
  counter-increment: line;
  content: counter(line);
  display: inline-block;
  width: 2.1em;
  color: var(--code-dim);
  opacity: .55;
}
.caret {
  display: inline-block;
  width: 8px;
  height: 1.15em;
  margin-left: 3px;
  vertical-align: -3px;
  background: var(--code-key);
  opacity: 0;
}
.demo-result {
  position: relative;
  margin: 0 14px;
  padding: 14px 16px 16px;
  border-radius: 10px;
  background: rgba(174, 198, 224, .06);
  border: 1px solid rgba(174, 198, 224, .1);
}
.demo-result table {
  border-collapse: collapse;
  min-width: 58%;
  font: 13px var(--mono);
}
.demo-result th {
  text-align: left;
  font-weight: 500;
  color: var(--code-dim);
  padding: 0 12px 8px 0;
  border-bottom: 1px solid rgba(174, 198, 224, .14);
}
.demo-result td {
  padding: 8px 12px 0 0;
}
.demo-stamp {
  position: absolute;
  right: 18px;
  bottom: 18px;
  padding: 8px 12px;
  border: 2px solid var(--code-good);
  border-radius: 8px;
  color: var(--code-good);
  font: 600 13px var(--mono);
  letter-spacing: .02em;
  transform: rotate(-4deg);
  background: rgba(152, 215, 176, .08);
}
.demo figcaption {
  padding: 14px 20px 18px;
  font-size: 13px;
  color: var(--code-dim);
}
.demo figcaption code {
  color: var(--code-key);
  background: rgba(128, 199, 255, .1);
}
.proof dl {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: 0;
  border-block: 1px solid var(--line-strong);
}
.proof dl > div {
  display: flex;
  flex-direction: column-reverse;
  justify-content: flex-end;
  gap: 8px;
  padding: 26px 22px;
  border-left: 1px solid var(--line);
}
.proof dl > div:first-child {
  border-left: 0;
  padding-left: 0;
}
.proof dd {
  margin: 0;
  font: 400 clamp(42px, 4.6vw, 62px)/1 var(--serif);
  letter-spacing: -.01em;
}
.proof dt {
  font: 12px/1.45 var(--mono);
  color: var(--ink-3);
}
.landing > .proof {
  padding-top: clamp(56px, 8vw, 96px);
}
.section-head {
  max-width: 780px;
  margin-bottom: clamp(32px, 5vw, 60px);
}
.section-head h2,
.duo-card h2,
.final-cta h2 {
  margin-top: 16px;
  font: 400 clamp(38px, 4.7vw, 62px)/1.03 var(--serif);
  letter-spacing: -.012em;
  text-wrap: balance;
}
.section-head > p:not(.kicker) {
  margin-top: 20px;
  max-width: 40em;
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink-2);
}
.why-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: why;
}
.why-item {
  counter-increment: why;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 80px);
  align-items: center;
  padding-block: clamp(30px, 4vw, 48px);
  border-top: 1px solid var(--line);
}
.why-item:nth-child(even) .why-art {
  order: -1;
}
.why-item h3 {
  display: flex;
  gap: 14px;
  align-items: baseline;
  font: 600 clamp(21px, 2vw, 25px)/1.28 var(--sans);
  letter-spacing: -.015em;
}
.why-item h3::before {
  content: counter(why, decimal-leading-zero);
  flex-shrink: 0;
  font: 500 12px var(--mono);
  color: var(--blue);
}
.why-copy p {
  margin-top: 14px;
  max-width: 34em;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--ink-2);
}
.why-art {
  min-width: 0;
  padding: 22px 24px 20px;
  border-radius: 14px;
  background: var(--code-bg);
  color: var(--code-ink);
  box-shadow: 0 30px 70px -44px rgba(7, 18, 31, .6);
}
.art-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed rgba(174, 198, 224, .16);
  font: 12px var(--mono);
  color: var(--code-dim);
}
.art-note.good {
  color: var(--code-good);
}
.art-note.warn {
  color: var(--code-str);
}
.art-note.warn::before {
  content: "!";
  display: grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--code-str);
  color: var(--code-bg);
  font-weight: 600;
}
.landing .mini-table {
  width: 100%;
  font: 13px var(--mono);
}
.mini-table th {
  padding: 4px 12px 10px 0;
  text-align: left;
  font-weight: 500;
  color: var(--code-dim);
  border-bottom: 1px solid rgba(174, 198, 224, .14);
}
.mini-table td {
  padding: 10px 12px 10px 0;
  border-bottom: 1px solid rgba(174, 198, 224, .07);
}
.landing .mini-table .null {
  color: var(--code-num);
}
.landing .mini-table .null::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--code-num);
  vertical-align: 2px;
}
.help-art {
  display: grid;
  gap: 10px;
  justify-items: start;
}
.help-art span {
  padding: 11px 16px;
  border: 1px solid rgba(174, 198, 224, .2);
  border-radius: 9px;
  font-size: 14px;
  color: var(--code-ink);
}
.help-art span:nth-child(2) {
  margin-left: 28px;
  color: var(--code-str);
  border-color: rgba(244, 206, 96, .3);
}
.help-art span:nth-child(3) {
  margin-left: 56px;
  color: var(--code-good);
  border-color: rgba(152, 215, 176, .3);
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  background: var(--surface);
}
.steps li {
  position: relative;
  padding: 32px 30px 34px;
  border-left: 1px solid var(--line);
}
.steps li:first-child {
  border-left: 0;
}
.steps li:not(:last-child)::after {
  content: "\2192";
  position: absolute;
  top: 40px;
  right: -13px;
  padding: 2px;
  background: var(--surface);
  color: var(--ink-4);
  font: 14px var(--mono);
}
.step-n {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 24px;
  border: 1px solid var(--blue);
  border-radius: 50%;
  color: var(--blue);
  font: 500 14px var(--mono);
}
.steps h3 {
  font: 600 19px/1.3 var(--sans);
  letter-spacing: -.01em;
}
.steps p {
  margin-top: 10px;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink-2);
}
.level-path {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  align-items: start;
  margin: 0;
  padding: 0;
  list-style: none;
}
.course-level {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 28px 24px 24px;
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  background: var(--surface);
}
.course-level::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: var(--level-color);
}
.course-level:nth-child(1) {
  margin-top: 84px;
}
.course-level:nth-child(2) {
  margin-top: 56px;
}
.course-level:nth-child(3) {
  margin-top: 28px;
}
.level-tag {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font: 12px var(--mono);
  color: var(--ink-3);
}
.free-tag {
  padding: 2px 9px;
  border-radius: 99px;
  color: var(--good);
  background: var(--good-soft);
}
.course-level h3 {
  margin-top: 14px;
  font: 400 36px/1 var(--serif);
}
.level-goal {
  margin-top: 12px;
  font-weight: 500;
  line-height: 1.5;
}
.level-sql {
  margin-top: 14px;
  font: 12px/1.75 var(--mono);
  color: var(--blue);
}
.course-level ul {
  display: grid;
  gap: 8px;
  margin: 18px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px dashed var(--line-strong);
  font-size: 14px;
  color: var(--ink-2);
}
.course-level li::before {
  content: "\203a";
  margin-right: 8px;
  color: var(--level-color);
  font-family: var(--mono);
}
.level-meta {
  margin-top: 22px;
  font: 12px var(--mono);
  color: var(--ink-3);
}
.bank-split {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  font: 12px var(--mono);
}
.bank-split span {
  flex: var(--n) 1 0;
  min-width: 0;
  overflow: hidden;
  padding: 12px 14px;
  border-top: 3px solid var(--level-color);
  border-radius: 4px 4px 8px 8px;
  background: color-mix(in srgb, var(--level-color) 11%, transparent);
  color: var(--ink-2);
  white-space: nowrap;
  text-overflow: ellipsis;
}
.bank-split b {
  display: block;
  margin-bottom: 4px;
  font: 400 30px/1 var(--serif);
  color: var(--ink);
}
.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  background: var(--line-strong);
}
.topic-grid li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 16px;
  padding: 22px 22px 24px;
  background: var(--surface);
}
.topic-grid h3 {
  font: 600 16px/1.35 var(--sans);
}
.topic-grid p {
  grid-column: 1;
  font: 12px/1.6 var(--mono);
  color: var(--ink-3);
}
.topic-grid span {
  grid-column: 2;
  grid-row: 1 / span 2;
  font: 400 36px/1 var(--serif);
  color: var(--blue);
}
.landing .text-cta {
  display: inline-flex;
  gap: 8px;
  margin-top: 28px;
  padding-bottom: 3px;
  border-bottom: 1px solid currentColor;
  color: var(--blue);
  font-weight: 600;
}
.landing .text-cta span {
  transition: transform 200ms var(--ease);
}
.landing .text-cta:hover span {
  transform: translateX(3px);
}
.duo {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.duo-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: clamp(28px, 4vw, 52px);
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  background: var(--surface);
}
.duo-card h2 {
  font-size: clamp(34px, 3.6vw, 48px);
}
.duo-card p:not(.kicker) {
  margin: 18px 0 30px;
  line-height: 1.75;
  color: var(--ink-2);
}
.duo-card .text-cta {
  margin-top: auto;
}
.duo-card.dark {
  border-color: transparent;
  background: var(--dark-card);
  color: var(--dark-ink);
  background-image:
    linear-gradient(rgba(128, 199, 255, .05) 1px, transparent 1px),
    linear-gradient(
      90deg,
      rgba(128, 199, 255, .05) 1px,
      transparent 1px);
  background-size: 32px 32px;
}
.duo-card.dark .kicker {
  color: #8d9db1;
}
.duo-card.dark .kicker span,
.duo-card.dark .text-cta {
  color: #80c7ff;
}
.duo-card.dark p:not(.kicker) {
  color: var(--dark-ink-2);
}
.compare-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  background: var(--surface);
}
.compare table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  font-size: 15px;
}
.compare th,
.compare td {
  padding: 17px 20px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.compare thead th {
  font: 500 12px var(--mono);
  letter-spacing: .02em;
  color: var(--ink-3);
}
.compare tbody th {
  font-weight: 500;
}
.compare td {
  color: var(--ink-2);
}
.compare .us {
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 600;
}
.compare tr:last-child > * {
  border-bottom: 0;
}
.faq-list {
  max-width: 880px;
  border-top: 1px solid var(--line-strong);
}
.faq details {
  border-bottom: 1px solid var(--line-strong);
}
.faq summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 24px 0;
  cursor: pointer;
  list-style: none;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary::after {
  content: "+";
  flex-shrink: 0;
  font: 300 28px/1 var(--mono);
  color: var(--blue);
  transition: transform 250ms var(--ease);
}
.faq details[open] summary::after {
  transform: rotate(45deg);
}
.faq summary h3 {
  font: 500 clamp(18px, 1.8vw, 21px)/1.4 var(--sans);
  letter-spacing: -.01em;
}
.faq summary:hover h3 {
  color: var(--blue);
}
.faq details p {
  max-width: 46em;
  padding: 0 52px 28px 0;
  line-height: 1.75;
  color: var(--ink-2);
}
.landing > .final-cta {
  width: min(var(--wrap), 100% - 2 * var(--gutter));
  margin: clamp(72px, 10vw, 136px) auto clamp(48px, 7vw, 88px);
  padding: clamp(56px, 8vw, 104px) var(--gutter);
  overflow: hidden;
  border-radius: 24px;
  text-align: center;
  background: var(--dark-card);
  color: var(--dark-ink);
  background-image:
    radial-gradient(
      ellipse at 50% 120%,
      rgba(128, 199, 255, .22),
      transparent 60%),
    linear-gradient(rgba(128, 199, 255, .05) 1px, transparent 1px),
    linear-gradient(
      90deg,
      rgba(128, 199, 255, .05) 1px,
      transparent 1px);
  background-size:
    auto,
    32px 32px,
    32px 32px;
}
.final-cta h2 {
  max-width: 13em;
  margin-inline: auto;
  font-size: clamp(40px, 5.6vw, 72px);
}
.final-cta p {
  max-width: 34em;
  margin: 22px auto 34px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--dark-ink-2);
}
.landing .final-cta code {
  color: #80c7ff;
  background: rgba(128, 199, 255, .12);
}
.landing .final-cta .cta {
  background: #80c7ff;
  color: #07121f;
}
.landing .final-cta .cta:hover {
  background: #a7daff;
}
.landing-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 28px 48px;
  width: min(var(--wrap), 100% - 2 * var(--gutter));
  margin: 0 auto;
  padding: 36px 0 52px;
  border-top: 1px solid var(--line);
}
.landing-footer p {
  max-width: 30em;
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-3);
}
.landing-footer nav {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 12px 36px;
  align-content: start;
  font-size: 14px;
  color: var(--ink-2);
}
.landing-footer nav a:hover {
  color: var(--blue);
}
@media (prefers-reduced-motion: no-preference) {
  .hero-copy > * {
    animation: landing-rise 800ms var(--ease) both;
  }
  .hero-copy > :nth-child(2) {
    animation-delay: 80ms;
  }
  .hero-copy > :nth-child(3) {
    animation-delay: 160ms;
  }
  .hero-copy > :nth-child(4) {
    animation-delay: 240ms;
  }
  .hero-copy > :nth-child(5) {
    animation-delay: 320ms;
  }
  .hero h1 em {
    animation: landing-draw 700ms 900ms var(--ease) both;
  }
  .demo {
    animation: landing-rise 900ms 200ms var(--ease) both;
  }
  .demo-code .line {
    animation: landing-type 420ms steps(20, end) both;
  }
  .demo-code .line:nth-child(1) {
    animation-delay: 700ms;
  }
  .demo-code .line:nth-child(2) {
    animation-delay: 1120ms;
  }
  .demo-code .line:nth-child(3) {
    animation-delay: 1540ms;
  }
  .demo-code .line:nth-child(4) {
    animation-delay: 1960ms;
  }
  .demo-code .line:nth-child(5) {
    animation-delay: 2380ms;
  }
  .caret {
    animation: landing-blink 1s 2800ms steps(1) 4;
  }
  .demo-result tbody tr {
    animation: landing-rise 400ms var(--ease) both;
  }
  .demo-result tbody tr:nth-child(1) {
    animation-delay: 2950ms;
  }
  .demo-result tbody tr:nth-child(2) {
    animation-delay: 3080ms;
  }
  .demo-stamp {
    animation: landing-stamp 450ms 3400ms cubic-bezier(.2, 1.6, .4, 1) both;
  }
  @supports (animation-timeline: view()) {
    .why-item,
    .steps li,
    .course-level,
    .topic-grid li,
    .duo-card,
    .compare-wrap,
    .faq details {
      animation: landing-rise linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 30%;
    }
  }
}
@keyframes landing-rise {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
}
@keyframes landing-draw {
  from {
    background-size: 0 .1em;
  }
}
@keyframes landing-type {
  from {
    clip-path: inset(0 100% 0 0);
  }
  to {
    clip-path: inset(0 0 0 0);
  }
}
@keyframes landing-blink {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}
@keyframes landing-stamp {
  from {
    opacity: 0;
    transform: rotate(-4deg) scale(1.7);
  }
  to {
    opacity: 1;
    transform: rotate(-4deg) scale(1);
  }
}
@media (max-width: 1080px) {
  .landing .hero {
    grid-template-columns: minmax(0, 1fr);
  }
  .demo {
    max-width: 600px;
  }
  .level-path {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .course-level:nth-child(n) {
    margin-top: 0;
  }
}
@media (max-width: 800px) {
  .proof dl {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .proof dl > div,
  .proof dl > div:first-child {
    padding: 22px 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .proof dl > div:nth-child(-n+2) {
    border-top: 0;
  }
  .proof dl > div:nth-child(even) {
    padding-left: 20px;
    border-left: 1px solid var(--line);
  }
  .why-item {
    grid-template-columns: minmax(0, 1fr);
  }
  .why-item:nth-child(even) .why-art {
    order: 0;
  }
  .steps {
    grid-template-columns: minmax(0, 1fr);
  }
  .steps li {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .steps li:first-child {
    border-top: 0;
  }
  .steps li:not(:last-child)::after {
    content: "\2193";
    top: auto;
    right: 30px;
    bottom: -13px;
  }
  .duo {
    grid-template-columns: minmax(0, 1fr);
  }
  .landing-footer nav {
    grid-template-columns: repeat(2, auto);
  }
}
@media (max-width: 560px) {
  .level-path {
    grid-template-columns: minmax(0, 1fr);
  }
  .bank-split {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .hero-actions > a {
    width: 100%;
  }
  .demo-stamp {
    position: static;
    display: inline-block;
    margin-top: 14px;
  }
  .demo-result table {
    min-width: 0;
  }
  .faq details p {
    padding-right: 0;
  }
  .landing .code {
    font-size: 12.5px;
  }
  .help-art span:nth-child(2) {
    margin-left: 16px;
  }
  .help-art span:nth-child(3) {
    margin-left: 32px;
  }
}

/* packages/learning/styles.css */
.g-panel,
.g-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  min-width: 0;
}
.g-panel {
  margin-bottom: 20px;
}
.g-panel > p {
  color: var(--ink-2);
}
.g-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(270px, 100%), 1fr));
  gap: 16px;
}
.g-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: var(--ink) !important;
  transition: border-color .15s, transform .15s;
}
.g-card:hover {
  border-color: var(--blue);
}
.g-card :is(h2, h3) {
  font-size: 19px;
  font-weight: 500;
  margin: 0;
}
.g-card p {
  font-size: 13px;
  color: var(--ink-2);
  margin: 0;
  white-space: pre-line;
  overflow-wrap: anywhere;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.g-card-meta {
  font: 10px/1.5 var(--mono);
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.g-card-foot {
  margin-top: auto;
  padding-top: 8px;
  color: var(--blue);
  font-size: 12px;
  display: flex;
  justify-content: space-between;
}
.g-card > span:not(.g-card-meta):not(.g-card-foot) {
  font-size: 12px;
  color: var(--ink-2);
}
.g-dashboard-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 20px;
}
.g-dashboard-grid > .g-panel {
  margin: 0;
}
.g-continue {
  background: var(--blue-soft);
  border-color: var(--line-strong);
}
.g-continue h2 {
  font-size: 26px;
}
.g-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 0 0 28px;
}
.g-stats > div {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px;
}
.g-stats dt {
  font-size: 11px;
  color: var(--ink-3);
  margin-bottom: 8px;
}
.g-stats dd {
  margin: 0;
  color: var(--blue);
  font: 22px var(--mono);
}
.g-primary,
.g-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  min-height: 42px;
  padding: 10px 15px;
  font-size: 13px !important;
  background: var(--surface);
  color: var(--ink) !important;
  line-height: 1.4;
  text-align: center;
}
.g-primary {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--button-ink) !important;
}
.g-primary:hover:not(:disabled) {
  background: var(--button-hover);
}
.g-button:hover:not(:disabled) {
  border-color: var(--blue);
  color: var(--blue) !important;
}
.g-inline {
  display: flex;
  align-items: end;
  gap: 12px;
  flex-wrap: wrap;
}
.g-inline label,
.g-filters label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--ink-2);
  font-size: 12px;
}
.g-inline select,
.g-filters select,
.g-filters input {
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  border-radius: 7px;
  min-height: 42px;
  max-width: 100%;
  font-size: 13px;
}
.g-filters {
  display: grid;
  grid-template-columns: minmax(180px, 2fr) repeat(3, minmax(100px, 1fr)) auto;
  gap: 12px;
  align-items: end;
  margin: 22px 0 12px;
}
.g-filters input {
  width: 100%;
  min-width: 0;
}
.g-small {
  font-size: 12px !important;
  color: var(--ink-3) !important;
  margin: 12px 0;
}
.g-empty,
.g-notice,
.g-warning {
  padding: 14px 17px;
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.6;
  overflow-wrap: anywhere;
}
.g-notice {
  background: var(--blue-soft);
  color: var(--ink-2);
}
.g-warning {
  background: var(--yellow-soft);
  border: 1px solid var(--yellow);
  color: var(--ink);
}
.g-empty {
  color: var(--ink-3);
  border: 1px dashed var(--line-strong);
}
.g-badges {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
  gap: 12px;
}
.g-badge {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink-3);
}
.g-badge > span {
  font-size: 25px;
  color: var(--ink-3);
}
.g-badge h3 {
  margin: 0 0 5px;
  font-size: 14px;
}
.g-badge p {
  margin: 0 0 7px;
  font-size: 12px;
}
.g-badge small {
  font-size: 10px;
}
.g-badge.is-earned {
  border-color: var(--good);
  background: var(--good-soft);
  color: var(--ink);
}
.g-badge.is-earned > span,
.g-badge.is-earned small {
  color: var(--good);
}
.g-history {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
}
.g-history li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
  font-size: 13px;
}
.g-history li > span:last-child {
  color: var(--ink-3);
  font-size: 11px;
  white-space: nowrap;
}
.g-discussions > .g-panel details,
.g-workspace > details {
  border-top: 1px solid var(--line);
  padding: 14px 0;
  margin: 16px 0;
}
.g-discussions summary,
.g-workspace summary {
  font-size: 13px;
  color: var(--blue);
  font-weight: 500;
}
.g-prose {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.75;
  font-size: 14px;
  margin: 14px 0;
  max-width: 90ch;
}
.g-check {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  font-size: 13px;
}
.g-check input {
  width: 18px;
  height: 18px;
  accent-color: var(--blue);
}
.g-check input:focus-visible {
  outline-offset: 4px;
}
.g-workspace {
  padding: 26px;
  overflow: hidden;
}
.g-task {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding: 18px;
  background: var(--blue-soft);
  border-radius: 8px;
  margin-bottom: 22px;
}
.g-task > span {
  font-size: 28px;
  color: var(--blue);
  line-height: 1.2;
}
.g-task h2 {
  font-size: 14px;
  letter-spacing: 0;
  margin-bottom: 8px;
}
.g-task p {
  margin: 0;
  font-size: 14px;
  white-space: pre-line;
  overflow-wrap: anywhere;
}
.g-engine {
  min-width: 0;
  max-width: 100%;
  overflow: auto;
  margin: 20px 0;
}
.g-workspace-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}
.g-feedback:empty {
  display: none;
}
.g-feedback {
  padding: 16px;
  margin-top: 18px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  font-size: 14px;
}
.g-feedback p {
  margin: 6px 0 0;
  white-space: pre-line;
}
.g-feedback.is-correct {
  border-color: var(--good);
  background: var(--good-soft);
}
.g-feedback.is-correct strong {
  color: var(--good);
}
.g-feedback.is-incorrect {
  border-color: var(--yellow);
  background: var(--yellow-soft);
}
.g-next {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.g-mock-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 14px 18px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  border-radius: 10px;
  margin-bottom: 24px;
  font-size: 13px;
}
.g-mock-bar [data-timer] {
  font: 22px var(--mono);
  color: var(--blue);
  margin-left: auto;
}
@media (min-width: 1500px) {
  .g-header {
    flex-wrap: nowrap;
  }
  .g-nav {
    gap: 5px;
  }
  .g-nav a {
    font-size: 14px;
  }
}
@media (max-width: 1150px) {
  .g-nav {
    order: 5;
    flex-basis: 100%;
    margin: 0;
  }
  .g-subject-label {
    margin-right: auto;
  }
  .g-header {
    gap: 10px;
    padding: 14px 20px;
  }
  .g-filters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .g-filters > label:first-child {
    grid-column: 1/-1;
  }
  .g-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .g-layout {
    grid-template-columns: 230px minmax(0, 1fr);
  }
}
@media (max-width: 760px) {
  .g-header {
    padding: 12px 16px;
    gap: 8px;
  }
  .g-brand {
    font-size: 18px;
  }
  .g-mark {
    width: 30px;
    height: 30px;
    font-size: 17px;
  }
  .g-subject-label select {
    max-width: 165px;
    font-size: 12px;
    padding: 8px;
  }
  .g-theme {
    font-size: 11px !important;
    min-height: 38px;
    padding: 8px;
  }
  .g-account-link {
    padding: 8px;
    font-size: 12px;
  }
  .g-nav {
    gap: 2px;
    flex-wrap: nowrap;
    overflow: auto;
    max-width: 100%;
    padding-bottom: 4px;
  }
  .g-nav a {
    font-size: 12px;
    padding: 9px;
  }
  .g-layout,
  .g-layout:has(> .g-menu:not([open])) {
    display: block;
  }
  .g-menu {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .g-menu > summary {
    position: static;
    padding: 12px 16px;
    min-height: 44px;
  }
  .g-menu:not([open]) > summary > span {
    display: inline;
  }
  .g-menu-content {
    position: static;
    max-height: 300px;
    padding: 8px 16px 20px;
  }
  .g-page {
    padding: 24px 16px 18px;
  }
  .g-dashboard-grid {
    grid-template-columns: 1fr;
  }
  .g-panel,
  .g-card {
    padding: 19px;
  }
  .g-workspace {
    padding: 16px;
  }
  .g-task {
    padding: 14px;
  }
  .g-cards {
    grid-template-columns: 1fr;
  }
  .g-stats {
    gap: 10px;
  }
  .g-stats > div {
    padding: 14px;
  }
  .g-stats dd {
    font-size: 19px;
  }
  .g-history li {
    flex-direction: column;
    gap: 5px;
  }
  .g-mock-bar {
    padding: 12px;
  }
  .g-page-heading {
    margin-bottom: 22px;
  }
  .g-footer {
    font-size: 10px;
  }
  .g-filters {
    gap: 10px;
  }
  .g-inline {
    align-items: stretch;
  }
  .g-inline label {
    flex: 1;
    min-width: 110px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .g-platform * {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}
.g-result-table {
  overflow: auto;
  max-width: 100%;
  margin-top: 1rem;
}
.g-result-table table {
  border-collapse: collapse;
  width: 100%;
  font-family: var(--mono);
}
.g-result-table th,
.g-result-table td {
  border: 1px solid var(--line);
  padding: .65rem;
  text-align: left;
}
body {
  display: block;
  height: 100dvh;
}
#app {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: auto minmax(0, 1fr);
  height: 100dvh;
  min-width: 0;
}
#g-main:focus {
  outline: none;
}
:root[data-view=home] #app {
  display: block;
  height: auto;
}
.g-skip {
  position: fixed;
}
.header-inner {
  gap: 16px;
}
.nav {
  margin-left: auto;
  min-width: 0;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav::-webkit-scrollbar {
  display: none;
}
.nav a {
  padding-inline: 10px;
  flex-shrink: 0;
}
.brand-membership {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  min-width: 0;
  flex-shrink: 0;
  margin-right: auto;
  padding-block: 8px;
}
.membership-link {
  margin-left: 38px;
  border-radius: 999px;
  line-height: 1;
  text-decoration: none;
}
.membership-link:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 4px;
}
.membership-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border: 1px solid #8abbe0;
  border-radius: 999px;
  background: #edf6ff;
  color: #185680;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .02em;
  white-space: nowrap;
}
.membership-all {
  border-color: #c8a24b;
  background:
    linear-gradient(
      110deg,
      #fff8df,
      #f4e0a8);
  color: #674810;
  box-shadow: 0 1px 5px #b8902c20;
}
:root[data-theme=dark] .membership-badge {
  border-color: #416b8a;
  background: #142c40;
  color: #a6d9ff;
}
:root[data-theme=dark] .membership-all {
  border-color: #a8873e;
  background:
    linear-gradient(
      110deg,
      #302719,
      #44361d);
  color: #f7d984;
  box-shadow: 0 1px 8px #d7b65118;
}
.subject-membership {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.header .brand {
  anchor-name: --brand;
}
.brand-switch {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0;
  border: 0;
  border-radius: 6px;
  background: none;
  letter-spacing: inherit;
}
.brand-switch > span:last-child,
.brand-switch:hover {
  color: var(--blue);
}
.brand-switch:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 4px;
}
#g-subjects {
  inset: 70px auto auto 32px;
}
@media (max-width: 1250px) {
  #g-subjects {
    left: 24px;
  }
}
@media (max-width: 800px) {
  #g-subjects {
    top: 56px;
    left: 20px;
  }
}
@media (max-width: 480px) {
  #g-subjects {
    left: 16px;
  }
}
@supports (top:anchor(bottom)) {
  #g-subjects {
    position-anchor: --brand;
    inset: calc(anchor(bottom, 64px) + 8px) auto auto anchor(left, 16px);
  }
}
#g-subjects > a + p {
  margin-top: 4px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}
.subject-progress {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.subject-progress > progress {
  width: 64px;
  margin: 0;
}
.menu-button {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex-shrink: 0;
  min-height: 40px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink-2);
  font-size: 13px;
  cursor: pointer;
}
:is(.menu-button, .brand-switch)::after {
  content: "";
  width: 6px;
  height: 6px;
  border: solid currentColor;
  border-width: 0 1.5px 1.5px 0;
  transform: translateY(-2px) rotate(45deg);
}
.menu-button:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.menu-panel {
  position: fixed;
  inset: 70px 24px auto auto;
  margin: 0;
  min-width: 250px;
  max-width: calc(100vw - 24px);
  max-height: calc(100dvh - 90px);
  overflow: auto;
  padding: 8px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow);
}
@supports (top:anchor(bottom)) {
  .menu-panel {
    inset: calc(anchor(bottom, 64px) + 6px) anchor(right, 24px) auto auto;
  }
}
.menu-panel > p {
  padding: 6px 10px 4px;
  font-size: 12px;
  color: var(--ink-3);
}
.menu-panel > a,
.menu-panel > button {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  min-height: 44px;
  padding: 11px 10px;
  border: 0;
  border-radius: 8px;
  background: none;
  color: var(--ink);
  font-size: 14px;
  text-align: left;
}
.menu-panel > a:hover,
.menu-panel > button:hover {
  background: var(--blue-soft);
  color: var(--blue);
}
.menu-panel > a[aria-current] {
  color: var(--blue);
  font-weight: 500;
  box-shadow: inset 3px 0 var(--yellow-fill);
}
.menu-panel small {
  font-size: 12px;
  font-weight: 400;
  color: var(--ink-3);
  white-space: nowrap;
}
.menu-panel > .theme-toggle {
  justify-content: flex-start;
  margin-top: 4px;
  border-top: 1px solid var(--line);
  border-radius: 0 0 8px 8px;
}
.menu-panel > .menu-who {
  display: grid;
  justify-items: start;
  gap: 6px;
  padding: 8px 10px 12px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--line);
}
.menu-who strong {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  overflow-wrap: anywhere;
}
.g-page-heading {
  margin-bottom: 26px;
}
.g-page-heading > p:last-child {
  color: var(--ink-2);
  font-size: 14px;
  margin-top: 10px;
}
.g-section-title {
  margin: 28px 0 18px;
}
.g-prose {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.8;
  font-size: 14px;
}
.g-panel > h2 {
  font-size: 23px;
  margin-bottom: 14px;
}
.g-panel > p {
  margin: 12px 0;
}
.g-engine {
  min-width: 0;
  max-width: 100%;
}
.g-engine:not(:has(.code-workspace)) {
  padding: 0 24px;
  overflow: auto;
}
.g-workspace-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 0 24px 20px;
}
.part-answer > .answer-help,
.part-answer > [data-feedback]:not(:empty) {
  margin: 0 24px 20px;
}
.code-workspace .workspace-output {
  overflow: auto;
}
.code-workspace pre {
  white-space: pre-wrap;
}
.choice-workspace fieldset {
  border: 0;
  padding: 0;
}
.choice-workspace .choice {
  display: flex;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin: 8px 0;
  font-size: 14px;
}
.choice-workspace input {
  flex-shrink: 0;
}
.choice-workspace small {
  display: block;
  color: var(--ink-3);
}
.choice-workspace details {
  margin-bottom: 16px;
}
.choice-workspace li {
  margin-bottom: 16px;
}
.choice-workspace pre {
  overflow: auto;
  white-space: pre-wrap;
  font: 12px/1.8 var(--mono);
}
@media (max-width: 1180px) {
  .header-inner {
    flex-wrap: wrap;
  }
  .brand {
    margin-right: auto;
  }
  .nav {
    order: 3;
    flex-basis: 100%;
    margin: 0;
    padding-bottom: 10px;
  }
}
@media (max-width: 800px) {
  body,
  #app {
    height: auto;
    min-height: 100dvh;
  }
  .header-inner {
    padding-top: 10px;
    gap: 8px 10px;
    min-height: 0;
  }
  .brand {
    min-width: 0;
  }
  .nav {
    position: relative;
    gap: 2px;
    justify-content: flex-start;
    padding: 4px 0 6px;
  }
  .nav a {
    font-size: 14px;
    padding: 10px;
  }
  .menu-button {
    min-height: 38px;
    padding: 7px 10px;
  }
  .menu-panel {
    inset: 54px 12px auto auto;
  }
  .page {
    overflow: visible;
  }
  .g-engine:not(:has(.code-workspace)) {
    padding: 0 16px;
  }
  .g-workspace-controls,
  .part-answer > .answer-help,
  .part-answer > [data-feedback]:not(:empty) {
    margin-inline: 16px;
  }
}
.g-engine:has(.code-workspace) {
  margin: 0;
  overflow: visible;
}
@media (min-width: 1151px) {
  .track-map {
    grid-template-columns: repeat(var(--level-count,4), minmax(0, 1fr));
  }
}
@media (min-width: 1081px) {
  .level-path {
    grid-template-columns: repeat(var(--level-count,4), minmax(0, 1fr));
  }
}
.demo-code .line {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.demo-stamp {
  position: static;
  display: table;
  margin: 18px 0 0 auto;
}
.demo-result th,
.demo-result td {
  white-space: normal;
  overflow-wrap: anywhere;
}
.landing,
.landing-footer {
  --serif:var(--display);
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
}
.landing .hero h1 {
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: -.065em;
  line-height: 1.06;
}
.landing .hero h1 em {
  font-style: normal;
}
.landing :is(.section-head h2, .duo-card h2, .final-cta h2, .course-level h3) {
  font-family: var(--display);
  font-weight: 500;
  letter-spacing: -.045em;
  line-height: 1.15;
}
.nav a[aria-current=page] {
  position: relative;
}
.nav a[aria-current=page]::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 4px;
  height: 3px;
  background: color-mix(in srgb, var(--yellow-fill) 70%, transparent);
  pointer-events: none;
}
.lesson-teaching {
  margin-top: 14px;
  container-type: inline-size;
}
.lesson-teaching > :is(p, aside, section) {
  max-width: 80ch;
}
.lesson-teaching > h3 {
  margin: 22px 0 10px;
  font-size: 15px;
  font-weight: 600;
}
.syntax-breakdown {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  overflow: hidden;
}
.syntax-breakdown > div {
  padding: 12px 14px;
}
.syntax-breakdown > div + div {
  border-top: 1px solid var(--line);
}
.syntax-breakdown dt {
  font: 13px/1.7 var(--mono);
  color: var(--blue);
  overflow-wrap: anywhere;
}
.syntax-breakdown dd {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
}
.lesson-teaching pre {
  overflow: auto;
  margin: 12px 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  font: 13px/1.8 var(--mono);
  color: var(--blue);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.teaching-example {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px 16px;
  align-items: start;
  margin: 12px 0;
}
.teaching-example > :is(pre, p, div) {
  margin: 0;
}
@container (min-width:640px) {
  .syntax-breakdown {
    display: grid;
    grid-template-columns: fit-content(40%) minmax(0, 1fr);
    column-gap: 24px;
  }
  .syntax-breakdown > div {
    display: grid;
    grid-template-columns: subgrid;
    grid-column: 1/-1;
    align-items: baseline;
  }
  .syntax-breakdown dd {
    margin: 0;
  }
}
.teaching-example,
.teaching-example > :is(pre, .teaching-result) {
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
}
.teaching-result {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.teaching-result table {
  width: 100%;
  border-collapse: collapse;
}
.teaching-result caption {
  text-align: left;
  padding: 10px 12px;
  font-weight: 500;
}
.teaching-mistake {
  padding: 14px 16px;
  border-left: 3px solid var(--yellow-fill);
  background: var(--yellow-soft);
  border-radius: 0 8px 8px 0;
  font-size: 14px;
  line-height: 1.7;
}
.teaching-mistake h3 {
  font-size: 14px;
  margin: 0 0 6px;
}
.teaching-section {
  margin: 22px 0;
}
.teaching-section h3 {
  margin: 0 0 10px;
  font-size: 15px;
}
.teaching-section p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
}
.reference-layout {
  display: grid;
  grid-template-columns: minmax(210px, 280px) minmax(0, 1fr);
  gap: 24px;
  margin-top: 24px;
  align-items: start;
}
.reference-topics {
  padding: 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.reference-topics label {
  display: block;
  font-size: 14px;
  margin-bottom: 8px;
}
.reference-topics input {
  width: 100%;
  min-width: 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
}
.reference-topics nav {
  max-height: 65vh;
  overflow: auto;
}
.reference-topics h2 {
  font-size: 13px;
  margin: 20px 0 8px;
  color: var(--ink-2);
}
.reference-topics a {
  display: block;
  padding: 8px;
  border-radius: 6px;
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  color: var(--ink);
}
.reference-topics a[hidden] {
  display: none;
}
.reference-topics a[aria-current] {
  background: var(--blue-soft);
  color: var(--blue);
  box-shadow: inset 3px 0 var(--yellow-fill);
}
.reference-article {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper);
}
.reference-article > h2 {
  margin: 0 0 20px;
  font-size: 28px;
}
.reference-article > .g-primary {
  margin-top: 24px;
  display: inline-block;
}
@media (max-width: 800px) {
  .reference-layout {
    grid-template-columns: 1fr;
  }
  .reference-topics nav {
    max-height: 220px;
  }
  .reference-article {
    padding: 18px;
  }
}
.pricing-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.pricing-toggle {
  display: flex;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 16px;
}
.pricing-toggle legend {
  font-size: 13px;
  color: var(--ink-2);
  padding: 0 6px;
}
.pricing-toggle label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  cursor: pointer;
}
.pricing-toggle input {
  accent-color: var(--blue);
  width: 16px;
  height: 16px;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
  gap: 18px;
  margin: 24px 0;
}
.pricing-card {
  display: flex;
  flex-direction: column;
  margin: 0;
  min-width: 0;
}
.pricing-card h2 {
  font-size: 24px;
}
.pricing-card > p {
  font-size: 14px;
  line-height: 1.7;
}
.pricing-card .pricing-amount {
  font: 600 40px/1.1 var(--display);
  letter-spacing: -.04em;
  margin: 18px 0 6px;
}
.pricing-amount span {
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--ink-2);
}
.pricing-card .pricing-billing {
  font-size: 13px;
  margin: 0 0 16px;
  color: var(--ink-2);
}
.pricing-card ul {
  padding-left: 20px;
  margin: 10px 0 24px;
  font-size: 14px;
  line-height: 1.7;
  flex: 1;
}
.pricing-card li {
  margin-bottom: 8px;
}
.pricing-card > a,
.pricing-card > button {
  align-self: flex-start;
}
.pricing-featured {
  border-color: var(--blue);
  box-shadow: inset 0 3px var(--blue);
}
.pricing-table {
  overflow: auto;
}
.pricing-table th,
.pricing-table td {
  padding: 14px;
  text-align: left;
}
.pricing-table th[scope=row] {
  font-weight: 500;
}
.pricing-table a {
  color: var(--blue);
}
.pricing-faq details {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}
.pricing-faq summary {
  cursor: pointer;
  font-weight: 500;
}
.pricing-faq details p {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-2);
}
.lesson-intro {
  margin-bottom: 6px;
}
.lesson-intro h1 {
  max-width: none;
}
.lesson-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  margin-bottom: 10px;
  font-size: 13px;
  color: var(--ink-3);
}
.lesson-part {
  margin-top: 16px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: 0 6px 25px color-mix(in srgb, var(--ink) 3%, transparent);
}
.part-head,
.lesson-part > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  font: 600 16px/1.3 var(--sans);
  letter-spacing: 0;
  color: var(--ink);
}
.part-icon {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--blue-soft);
  color: var(--blue);
}
.part-detail {
  font-size: 13px;
  font-weight: 400;
  color: var(--ink-3);
}
.part-lesson > summary {
  list-style: none;
  cursor: pointer;
}
.part-lesson > summary::-webkit-details-marker {
  display: none;
}
.part-lesson > summary::after {
  content: "Show";
  margin-left: auto;
  font-size: 12px;
  font-weight: 400;
  color: var(--blue);
}
.part-lesson[open] > summary::after {
  content: "Hide";
}
.part-lesson[open] > summary,
.part-answer > .part-head {
  border-bottom: 1px solid var(--line);
}
.part-lesson > .lesson-teaching {
  margin: 0;
  padding: 6px 24px 24px;
}
.part-task {
  border-color: color-mix(in srgb, var(--blue) 35%, transparent);
  border-left: 4px solid var(--blue);
  background: linear-gradient(var(--blue-soft), var(--blue-soft)) var(--surface);
}
.part-task .part-icon {
  background: var(--blue);
  color: var(--button-ink);
}
.part-task > .part-head {
  padding-bottom: 4px;
}
.part-task > p {
  max-width: 110ch;
  padding: 0 24px 20px 64px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  white-space: pre-line;
  overflow-wrap: anywhere;
}
.part-answer .exercise-grid {
  padding: 20px 24px 24px;
}
.editor-footer > .editor-note {
  flex: 1;
  align-items: center;
  flex-wrap: wrap;
  padding-left: 4px;
  font-size: 12px;
}
.code-area {
  gap: 0;
  padding-inline: 0;
  --caret-line:0 calc(var(--line,0)*1.85em - var(--scroll,0)*1px)/100% 1.85em no-repeat;
}
.code-area:focus-within {
  box-shadow: none;
}
.code-area #line-numbers {
  box-sizing: content-box;
  padding-left: 12px;
}
.code-area textarea {
  padding: 0 12px 0 13px;
}
.code-area:focus-within textarea {
  background: linear-gradient(var(--blue-soft), var(--blue-soft)) var(--caret-line);
}
.code-area:focus-within #line-numbers {
  background:
    linear-gradient(
      90deg,
      var(--blue) 3px,
      var(--blue-soft) 0) var(--caret-line);
}
@media (forced-colors: none) {
  .code-area textarea:focus-visible {
    outline: 0;
  }
}
[data-code-feedback] {
  display: grid;
  gap: 12px;
}
[data-code-feedback] > .g-feedback {
  margin-top: 0;
}
.g-feedback .next-button {
  display: block;
  margin-top: 12px;
}
.answer-help {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 10px;
}
.answer-help:empty {
  display: none;
}
.g-help {
  min-width: 0;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
}
.g-help[open] {
  flex-basis: 100%;
}
.g-help > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  cursor: pointer;
  list-style: none;
}
.g-help > summary::-webkit-details-marker {
  display: none;
}
.g-help > summary::after {
  content: "\203a";
  font-size: 18px;
  line-height: 1;
  color: var(--ink-3);
  transition: transform .15s;
}
.g-help[open] > summary::after {
  transform: rotate(90deg);
}
.g-help > summary:hover {
  color: var(--blue);
}
.g-help > :not(summary) {
  margin: 0 14px 12px;
  max-width: 90ch;
  font-size: 14px;
  line-height: 1.7;
}
.help-hint[open] {
  border-color: color-mix(in srgb, var(--yellow) 35%, transparent);
  background: var(--yellow-soft);
}
.help-solution > pre {
  max-width: none;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  font: 14px/1.7 var(--sans);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.part-answer:has(.code-workspace, .gv-excel) .help-solution > pre {
  font: 13px/1.8 var(--mono);
  color: var(--blue);
}
.lesson-bottom {
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px 20px;
}
.lesson-bottom > span {
  margin-right: auto;
}
@media (max-width: 480px) {
  .g-tabs a {
    padding-inline: 10px;
  }
  .part-head,
  .lesson-part > summary {
    padding: 12px 16px;
  }
  .part-lesson > .lesson-teaching {
    padding: 4px 16px 18px;
  }
  .part-task > p {
    padding: 0 16px 16px;
  }
  .part-answer .exercise-grid {
    padding: 16px;
  }
}
@media (max-width: 600px) {
  [data-account-avatar] + span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
  }
  .header-inner {
    column-gap: 8px;
  }
  .header-inner .menu-button {
    gap: 5px;
    padding-inline: 8px;
  }
  .header-inner .menu-button::after {
    display: none;
  }
}
@media (max-width: 480px) {
  .brand-long .brand-prefix {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
  }
}
.app-layout {
  --menu-width:300px;
}
.app-layout.no-outline {
  --menu-width:0px;
  grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 801px) {
  .learning-menu:not([open]) > summary {
    flex-direction: column;
    gap: 10px;
    padding: 16px 0;
  }
  .learning-menu:not([open]) .menu-label {
    display: inline;
    writing-mode: vertical-rl;
  }
}
.side .progress-card {
  margin-bottom: 12px;
}
.section-label > span {
  font-size: 12px;
  color: var(--ink-3);
  white-space: nowrap;
}
.level-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 22px;
}
.level-card {
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}
.lesson-dot .icon {
  width: 12px;
  height: 12px;
  margin-top: 3px;
  color: var(--ink-3);
}
.lesson-meta .text-button,
.lesson-meta a {
  color: var(--blue);
}
@media (min-width: 1151px) {
  .dashboard-hero {
    grid-template-columns: 1.5fr 1fr;
  }
  .dashboard-bottom {
    grid-template-columns: 1fr 1fr;
  }
}
.dashboard-stats {
  grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr));
}
.dashboard-section-heading .reference-link {
  flex-shrink: 0;
}
.dashboard-bottom {
  margin: 28px 0;
}
.dashboard-bottom > .daily-feature > p:not(.eyebrow) {
  line-height: 1.7;
}
.leaderboard-panel {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 25px;
  border-radius: 14px;
}
.leaderboard-panel h2 {
  margin: 8px 0;
}
.leaderboard-panel .score-note {
  flex: 1;
  margin: 0 0 18px;
  font-size: 13px;
  color: var(--ink-2);
}
.achievement-list {
  grid-template-columns: repeat(auto-fit, minmax(min(150px, 100%), 1fr));
}
.catalogue-lead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  background: var(--blue-soft);
  border-color: var(--line-strong);
}
.catalogue-lead .eyebrow {
  margin-bottom: 6px;
}
.catalogue-lead h2 {
  margin: 0;
  font-size: 21px;
}
.catalogue-level {
  margin-top: 30px;
}
.catalogue-level > h2 {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 12px;
  font-size: 23px;
}
.catalogue-level > h2 small,
.g-section-title small {
  font: 400 13px var(--sans);
  letter-spacing: 0;
  color: var(--ink-3);
}
.catalogue-level > h3 {
  margin: 20px 0 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-2);
}
.g-tabs {
  position: relative;
  display: flex;
  gap: 4px;
  margin: -6px 0 22px;
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: none;
}
.g-tabs::-webkit-scrollbar {
  display: none;
}
.g-tabs a {
  flex-shrink: 0;
  white-space: nowrap;
  padding: 10px 14px;
  border-bottom: 2px solid transparent;
  font-size: 14px;
  color: var(--ink-2);
}
.g-tabs a:hover {
  color: var(--blue);
}
.g-tabs a[aria-current] {
  border-color: var(--blue);
  color: var(--blue);
  font-weight: 500;
}
.eyebrow,
.xp-badge,
.progress-numbers,
.module-number,
.pill,
.step-heading > span:last-child:not(.step-number),
.step-number,
.editor-toolbar label,
.engine-tag,
.editor-note,
.shortcut,
#row-count,
th,
.table-footer,
.lesson-bottom,
.footer,
.reference-grid pre,
.level-progress,
.data-selector label,
.schema-details,
.module-outcome,
.path-caption,
.dashboard-status,
.player-xp,
.player-note,
#next-quest-meta,
.dashboard-section-heading p:not(.eyebrow),
.dashboard-section-heading > span,
.world-top,
.world-progress,
.achievement p,
.achievement small,
.dashboard-stats span,
.score-note,
.daily-stats span,
.g-card-meta,
.g-stats dt,
.g-history li > span:last-child {
  font-size: 12px;
}
.text-button,
.reference-link,
.results-bar button,
.world-card details,
.achievement h3,
.run-button,
.small-button,
.next-button {
  font-size: 13px;
}
@media (min-width: 801px) {
  .data-selector select {
    font-size: 13px;
  }
}
.g-platform .workbook :is(.wb-heading span, label, .wb-data-tools p, [data-wb=range], .wb-foot, .wb-status, .wb-pivot p),
.gv-mail small {
  font-size: 12px;
}
.round-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  gap: 16px 20px;
}
.round-list .g-small {
  margin: 8px 0 0;
  line-height: 1.6;
}
.g-section-title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 2px 12px;
}
.part-task > .task-scenario {
  padding-bottom: 8px;
  color: var(--ink-2);
}
.g-followups {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid color-mix(in srgb, var(--good) 30%, transparent);
}
.g-followups summary {
  cursor: pointer;
  font-weight: 500;
}
.g-followups ul {
  margin: 8px 0;
  padding-left: 20px;
  line-height: 1.7;
}
.g-tabs small {
  margin-left: 4px;
  font-size: 12px;
  font-weight: 400;
  color: var(--ink-3);
}
.g-tabs + .g-section-title {
  margin-top: 4px;
}
.problem-mark .icon {
  width: 14px;
  height: 14px;
  color: var(--ink-3);
  vertical-align: -2px;
}
@media (max-width: 480px) {
  .membership-link {
    margin-left: 0;
  }
}
.part-task > .task-note {
  padding-top: 0;
  padding-bottom: 12px;
  font-size: 14px;
  color: var(--ink-2);
}
.part-task > .lab-check {
  margin: 0 24px 20px 64px;
}
.lab-check > pre {
  font: 13px/1.8 var(--mono);
  color: var(--blue);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
@media (max-width: 480px) {
  .part-task > .lab-check {
    margin: 0 16px 16px;
  }
}
.lesson-sources {
  margin-top: 18px;
  line-height: 1.8;
}
.lesson-sources a,
.g-discussions details a {
  color: var(--blue);
}
.part-lesson :is(pre, .syntax-breakdown dt) {
  font-family: var(--mono);
}
.part-lesson .teaching-result :is(table, th, td) {
  font-family: var(--sans);
  font-weight: 400;
}
.g-followup-list {
  margin: 6px 0 10px;
  padding-left: 20px;
  line-height: 1.7;
  font-size: 14px;
}
.account-avatar {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  vertical-align: middle;
}
.account-avatar > * {
  grid-area: 1/1;
}
.account-avatar img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--surface);
}
html body,
html body :where(*),
html body :where(*)::before,
html body :where(*)::after,
html body :is(.g-button, .g-primary, .g-small, .g-theme) {
  font-size: 13px !important;
}
html body :is(h2, h3, h4, h5, h6, strong, b, caption, summary, .part-head, .pricing-amount),
html body :is(h2, h3, h4, h5, h6, strong, b, caption, summary, .part-head) :not(.part-detail, .icon, .part-icon) {
  font-size: 15px !important;
  font-weight: 600;
}
html body :is(h1, .brand),
html body :is(h1, .brand) :not(.icon, .brand-mark, .part-icon) {
  font-size: 21px !important;
  font-weight: 600;
}
html :is(.step-number, .module-number) {
  width: auto;
  min-width: 1.75em;
  height: 1.75em;
  padding-inline: .3em;
}
.g-history a {
  color: var(--blue);
}
.g-inline label.g-button {
  position: relative;
  flex: 0 0 auto;
  flex-direction: row;
  cursor: pointer;
}
.g-button > input[type=file] {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  opacity: 0;
}
label.g-button:has(input:focus-visible) {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}
.g-danger {
  color: var(--bad) !important;
  border-color: color-mix(in srgb, var(--bad) 45%, var(--line-strong));
}
.g-danger:hover:not(:disabled) {
  border-color: var(--bad);
  color: var(--bad) !important;
}
:root {
  --flame:#d65f3c;
}
:root[data-theme=dark] {
  --flame:#ff9a6b;
}
.streak-button {
  gap: 6px;
  font-variant-numeric: tabular-nums;
}
.streak-button .icon,
.streak-summary .icon,
.reward-line .icon {
  width: 18px;
  height: 18px;
  color: var(--flame);
  fill: color-mix(in srgb, var(--flame) 22%, transparent);
}
.streak-button > .icon + .streak-count {
  position: static;
  width: auto;
  height: auto;
  overflow: visible;
  clip-path: none;
  font-weight: 600;
  color: var(--ink);
}
.goal-ring {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: conic-gradient(var(--good) var(--goal,0%), var(--line-strong) 0);
  -webkit-mask:
    radial-gradient(
      farthest-side,
      transparent 52%,
      #000 56%);
  mask:
    radial-gradient(
      farthest-side,
      transparent 52%,
      #000 56%);
}
.goal-met {
  background: var(--good);
}
.streak-panel {
  width: min(340px, calc(100vw - 24px));
}
.streak-summary {
  display: grid;
  gap: 10px;
  padding: 4px 10px 12px;
  font-size: 14px;
  color: var(--ink-2);
}
.streak-summary strong {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 17px;
  color: var(--ink);
}
.streak-summary progress {
  width: 100%;
}
.goal-choice {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0;
  border: 0;
  min-width: 0;
}
.goal-choice legend {
  margin-bottom: 6px;
  padding: 0;
  font-size: 12px;
  color: var(--ink-3);
}
.goal-choice label {
  position: relative;
  flex: 1;
}
.goal-choice input {
  position: absolute;
  inset: 0;
  opacity: 0;
  margin: 0;
  cursor: pointer;
}
.goal-choice span {
  display: block;
  padding: 9px 0;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  text-align: center;
}
.goal-choice input:checked + span {
  border-color: var(--blue);
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 600;
}
.goal-choice input:focus-visible + span {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}
.reward {
  display: grid;
  gap: 8px;
  margin-top: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}
.g-feedback .reward p {
  margin: 0;
}
.reward-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: center;
  font-size: 13px;
  color: var(--ink-2);
}
.reward-line span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.reward-xp {
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--yellow-fill);
  color: var(--on-yellow);
  font-weight: 700;
  animation: reward-pop .5s var(--ease);
}
.reward-goal {
  border-color: var(--good);
}
.reward-goal > strong {
  font-size: 16px;
}
.reward-badge {
  font-weight: 600;
}
.reward-badge > span {
  color: var(--yellow);
}
@keyframes reward-pop {
  0% {
    transform: scale(.6);
    opacity: 0;
  }
  60% {
    transform: scale(1.15);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}
.league-panel > p {
  color: var(--ink-2);
}
.league-table {
  display: grid;
  gap: 4px;
  max-width: 560px;
  margin: 14px 0;
  padding: 0;
  list-style: none;
}
.league-table li {
  display: grid;
  grid-template-columns: 3.2em minmax(0, 1fr) auto;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}
.league-table li > span:nth-child(2) {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.league-rank {
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}
.league-you {
  border-color: var(--blue) !important;
  background: var(--blue-soft) !important;
}
.league-join {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-end;
  margin: 12px 0;
}
.league-join label {
  display: grid;
  gap: 6px;
  font-size: 14px;
}
.league-join small {
  color: var(--ink-3);
}
.league-join input {
  min-height: 40px;
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  max-width: 260px;
}
.league-panel details {
  margin-top: 8px;
}
.league-panel summary {
  cursor: pointer;
  color: var(--blue);
  font-size: 13px;
}
.reward-next a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.streak-summary small {
  white-space: normal;
}
:root {
  --study-blue:#234aa5;
  --study-teal:#0f6864;
  --study-amber:#885018;
  --study-slate:#293b53;
  --study-soft:#edf3ff;
}
:root[data-theme=dark] {
  --study-blue:#203d78;
  --study-teal:#164e4b;
  --study-amber:#62401e;
  --study-slate:#253448;
  --study-soft:#142238;
}
.lesson-intro {
  padding: 4px 0 14px;
}
.lesson-meta {
  line-height: 1.7;
}
.lesson-intro h1 {
  line-height: 1.3;
}
.lesson-part {
  margin-top: 24px;
  box-shadow: none;
  scroll-margin-top: 20px;
}
.part-lesson > summary,
.part-answer > .part-head {
  padding: 18px 24px;
  background: var(--study-blue);
  color: #fff;
  border: 0;
  border-radius: 13px 13px 0 0;
}
.part-lesson:not([open]) > summary {
  border-radius: 13px;
}
.part-answer > .part-head {
  background: var(--study-slate);
}
.part-lesson > summary .part-detail,
.part-lesson > summary::after {
  color: #e1eaff;
}
.part-lesson > summary .part-icon,
.part-answer > .part-head .part-icon {
  background: #ffffff1f;
  color: #fff;
}
.part-lesson[open] > summary,
.part-answer > .part-head {
  border-bottom: 0;
}
.part-lesson > .lesson-teaching {
  padding: 24px;
  display: grid;
  gap: 24px;
}
.lesson-teaching > :is(section, aside, figure, details) {
  max-width: none;
  margin: 0;
  min-width: 0;
}
.lesson-teaching .concept,
.teaching-concept p,
.example-explanation p,
.teaching-section > p,
.discussion-body p {
  max-width: 72ch;
  line-height: 1.8;
  overflow-wrap: anywhere;
}
.teaching-concept {
  padding: 0 0 4px;
}
.teaching-concept > h3 {
  margin: 0 0 10px;
  color: var(--blue);
}
.teaching-concept p + p,
.example-explanation p + p,
.discussion-body p + p {
  margin-top: 14px;
}
.teaching-concept p,
.example-explanation p,
.discussion-body .g-prose p,
.teaching-section > p {
  white-space: pre-line;
}
.teaching-block {
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface);
}
.teaching-block > h3 {
  padding: 15px 20px;
  margin: 0;
  background: var(--paper-2);
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}
.teaching-block > .g-small {
  margin: 16px 20px;
  line-height: 1.65;
}
.teaching-syntax .syntax-breakdown {
  border: 0;
  border-radius: 0;
  background: var(--surface);
}
.syntax-breakdown > div {
  padding: 16px 20px;
}
.syntax-breakdown > div:nth-child(even) {
  background: var(--paper);
}
.syntax-breakdown dt code {
  font-weight: 500;
}
.syntax-breakdown dd {
  max-width: 64ch;
}
.teaching-worked > h3 {
  background: var(--study-slate);
  color: #fff;
  border: 0;
}
.teaching-worked .teaching-example {
  padding: 0 20px 20px;
  margin: 0;
  gap: 18px;
}
.teaching-example > pre {
  border-left: 4px solid var(--blue);
  background: var(--paper);
  line-height: 1.8;
}
.teaching-result {
  background: var(--surface);
  max-height: 320px;
}
.teaching-result caption {
  background: var(--good-soft);
  color: var(--ink);
  padding: 12px 16px;
}
.teaching-result thead th {
  position: sticky;
  top: 0;
  background: var(--paper-2);
  z-index: 1;
}
.teaching-result th,
.teaching-result td {
  padding: 10px 16px;
  text-align: left;
}
.teaching-result tbody tr:nth-child(even) {
  background: var(--paper);
}
.example-explanation {
  padding: 16px 18px;
  background: var(--blue-soft);
  border-radius: 8px;
  color: var(--ink-2);
}
.teaching-section {
  padding: 22px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--blue);
  border-radius: 10px;
  background: var(--paper);
}
.teaching-section > h3 {
  margin: 0 0 12px;
  color: var(--ink);
}
.teaching-section > p + p {
  margin-top: 14px;
}
.teaching-section > summary {
  cursor: pointer;
  color: var(--blue);
  line-height: 1.6;
}
.teaching-section[open] > summary {
  margin-bottom: 14px;
}
.lesson-teaching > .teaching-mistake {
  padding: 20px 24px;
  background: var(--study-amber);
  border: 0;
  border-radius: 10px;
  color: #fff;
}
.teaching-mistake h3 {
  margin: 0 0 8px;
  color: #fff;
}
.teaching-mistake p {
  max-width: 72ch;
  line-height: 1.8;
  color: #fff;
}
.part-task {
  --ink:#fff;
  --ink-2:#e1f3ef;
  --ink-3:#d1e9e5;
  --blue:#fff;
  --surface:var(--study-teal);
  --line:#ffffff38;
  --line-strong:#ffffff70;
  background: var(--study-teal);
  border: 0;
  color: #fff;
}
.part-task > .part-head {
  padding: 22px 24px 12px;
  color: #fff;
}
.part-task .part-icon {
  background: #ffffff1f;
  color: #fff;
}
.part-task > p {
  max-width: 80ch;
  padding: 0 24px 24px 64px;
  line-height: 1.8;
  color: #fff;
}
.part-task > .task-scenario {
  padding-bottom: 14px;
  color: var(--ink-2);
}
.part-task > .task-note {
  color: var(--ink-2);
}
.part-task .lab-check > pre {
  color: #fff;
}
.part-task :focus-visible {
  outline-color: #fff;
}
.concept-diagram {
  container-type: inline-size;
  padding: 24px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--study-soft);
}
.concept-diagram figcaption {
  margin-bottom: 20px;
}
.concept-diagram .eyebrow {
  margin: 0 0 8px;
  color: var(--blue);
}
.concept-diagram h3 {
  margin: 0 0 8px;
  color: var(--ink);
}
.concept-diagram figcaption p {
  max-width: 68ch;
  line-height: 1.7;
  color: var(--ink-2);
}
.diagram-flow {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(0, 1fr);
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.diagram-flow > li {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 20px 14px;
  border: 1px solid var(--line-strong);
  border-top: 4px solid var(--blue);
  border-radius: 10px;
  background: var(--surface);
  text-align: center;
  min-width: 0;
  color: var(--ink);
}
.diagram-flow > li + li::before {
  content: "\2192";
  position: absolute;
  left: -24px;
  top: 45%;
  color: var(--blue);
  font-weight: 600;
}
.diagram-flow > li > span {
  color: var(--ink-2);
  line-height: 1.6;
  overflow-wrap: anywhere;
}
.diagram-flow strong {
  line-height: 1.35;
}
.diagram-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  fill: none;
  stroke: var(--blue);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.diagram-flow > li:last-child {
  border-color: var(--study-teal);
  background: var(--study-teal);
  color: #fff;
}
.diagram-flow > li:last-child > span {
  color: #e1f3ef;
}
.diagram-flow > li:last-child .diagram-icon {
  stroke: #fff;
}
.g-discussions {
  display: grid;
  gap: 24px;
}
.g-discussions > .discussion-question {
  padding: 0;
  overflow: hidden;
  margin: 0;
}
.discussion-head {
  padding: 24px;
  background: var(--study-blue);
  color: #fff;
}
.discussion-head h2 {
  line-height: 1.5;
  max-width: 65ch;
  margin: 8px 0 0;
  color: #fff;
}
.discussion-head .g-card-meta,
.discussion-head > p {
  color: #e1eaff;
}
.discussion-head > p:last-child:not(.g-card-meta) {
  margin-top: 14px;
  max-width: 72ch;
  line-height: 1.8;
}
.discussion-body {
  padding: 22px 24px;
}
.g-discussions .discussion-body > details {
  margin-top: 0;
  padding-top: 0;
  border: 0;
}
.discussion-body summary {
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--blue);
  cursor: pointer;
}
.discussion-body .g-prose {
  white-space: normal;
}
.discussion-body .g-check {
  padding-top: 16px;
  border-top: 1px solid var(--line);
  align-items: flex-start;
  line-height: 1.7;
}
.discussion-body .g-check input {
  margin-top: 5px;
  flex-shrink: 0;
}
.g-followup-list li {
  margin-top: 12px;
}
.reference-article > .concept-help > summary {
  padding: 16px 20px;
  background: var(--study-blue);
  color: #fff;
  border-radius: 8px;
  cursor: pointer;
}
.reference-article .lesson-teaching {
  display: grid;
  gap: 24px;
  margin-top: 24px;
}
.reference-grid > article {
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
}
.reference-grid > article > h3 {
  margin: 0;
  padding: 18px 20px;
  background: var(--study-blue);
  color: #fff;
}
.reference-grid > article > :is(pre, .g-prose) {
  margin: 0;
  padding: 20px;
  line-height: 1.8;
}
.choice-workspace legend {
  padding: 12px 16px;
  margin-bottom: 12px;
  background: var(--study-blue);
  color: #fff;
  border-radius: 8px;
  line-height: 1.6;
  width: 100%;
}
.choice-workspace .choice {
  padding: 16px;
  margin: 12px 0;
  line-height: 1.7;
}
.choice-workspace .choice input {
  margin-top: 5px;
}
.g-card {
  border-top: 4px solid var(--study-blue);
}
.g-card-meta {
  color: var(--blue);
}
.catalogue-lead {
  background: var(--study-blue);
  border-color: var(--study-blue);
}
.catalogue-lead :is(h2, p, .eyebrow) {
  color: #fff;
}
.catalogue-lead .g-primary {
  background: #fff;
  border-color: #fff;
  color: var(--study-blue) !important;
}
.catalogue-lead :focus-visible {
  outline-color: #fff;
}
.round-list > div {
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--study-teal);
  border-radius: 10px;
  background: var(--paper);
}
@container (max-width:660px) {
  .diagram-flow {
    grid-auto-flow: row;
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .diagram-flow > li {
    padding: 18px;
  }
  .diagram-flow > li + li::before {
    content: "\2193";
    left: calc(50% - 8px);
    top: -28px;
  }
  .diagram-icon {
    width: 40px;
    height: 40px;
  }
}
@media (max-width: 600px) {
  .part-head,
  .part-lesson > summary,
  .part-answer > .part-head {
    padding: 16px;
    flex-wrap: wrap;
    gap: 8px;
  }
  .part-detail {
    flex-basis: 100%;
    padding-left: 40px;
  }
  .part-lesson > .lesson-teaching {
    padding: 16px;
    gap: 20px;
  }
  .part-task > .part-head {
    padding: 18px 16px 10px;
  }
  .part-task > p {
    padding: 0 16px 20px;
  }
  .part-task > .task-scenario {
    padding-bottom: 12px;
  }
  .concept-diagram {
    padding: 18px 14px;
  }
  .teaching-block > h3,
  .teaching-section,
  .lesson-teaching > .teaching-mistake {
    padding: 16px;
  }
  .teaching-worked .teaching-example {
    padding: 0 14px 16px;
  }
  .teaching-block > .g-small {
    margin: 14px;
  }
  .syntax-breakdown > div {
    padding: 14px;
  }
  .discussion-head,
  .discussion-body {
    padding: 20px 18px;
  }
  .reference-article {
    padding: 16px;
  }
  .reference-article .lesson-teaching {
    gap: 20px;
  }
  .diagram-flow {
    grid-auto-flow: row;
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .diagram-flow > li + li::before {
    content: "\2193";
    left: calc(50% - 8px);
    top: -28px;
  }
}
@media (max-width: 600px) {
  .part-lesson > summary {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr) auto;
    gap: 6px 10px;
  }
  .part-lesson > summary .part-icon {
    grid-row: 1/3;
  }
  .part-lesson > summary .part-detail {
    grid-column: 2/4;
    padding: 0;
  }
  .part-lesson > summary::after {
    grid-column: 3;
    grid-row: 1;
    margin: 0;
  }
}

/* apps/excel/dist/workbook.css */
.workbook {
  min-width: 0;
  max-width: 100%;
  margin-top: 20px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--surface);
  overflow: hidden;
  color: var(--ink);
}
.workbook .wb-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 18px;
  padding: 13px 15px;
  background: var(--paper-2);
  border-bottom: 1px solid var(--line);
}
.workbook .wb-heading strong {
  font-size: 14px;
  font-weight: 600;
}
.workbook .wb-heading span {
  color: var(--ink-3);
  font-size: 11px;
}
.workbook .wb-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
}
.workbook button,
.workbook select,
.workbook input {
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.35;
  color: var(--ink);
}
.workbook button {
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background: var(--surface);
  min-height: 31px;
  padding: 5px 9px;
  white-space: nowrap;
}
.workbook button:hover:not(:disabled),
.workbook button[aria-pressed=true] {
  color: var(--blue);
  border-color: var(--blue);
  background: var(--blue-soft);
}
.workbook label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 500;
  color: var(--ink-2);
  min-width: 0;
}
.workbook input:not([data-wb-cell]),
.workbook select {
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  padding: 6px 8px;
  min-height: 31px;
  max-width: 100%;
}
.workbook .wb-sheet-name input {
  width: 115px;
}
.workbook .wb-data-tools {
  border-bottom: 1px solid var(--line-strong);
  background: var(--paper-2);
}
.workbook .wb-data-tools summary {
  padding: 10px 13px;
  cursor: pointer;
  font-size: 12px;
  color: var(--ink-2);
}
.workbook .wb-data-tools p {
  font-size: 11px;
  color: var(--ink-3);
  margin: 0;
  padding: 0 13px 8px;
}
.workbook .wb-data-tools input {
  width: 110px;
}
.workbook .wb-import {
  max-width: 100%;
  flex-wrap: wrap;
}
.workbook .wb-import input {
  width: 190px;
}
.workbook .wb-formula-bar {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  border-bottom: 1px solid var(--line-strong);
}
.workbook .wb-formula-bar > span {
  color: var(--ink-3);
  font-style: italic;
}
.workbook [data-wb=range] {
  width: 102px;
  font-family: var(--mono);
  font-size: 11px;
}
.workbook .wb-formula-label {
  flex: 1;
  min-width: 0;
}
.workbook [data-wb=formula] {
  width: 100%;
  font-family: var(--mono);
  font-size: 12px;
}
.workbook .wb-scroll {
  width: 100%;
  max-width: 100%;
  max-height: 460px;
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}
.workbook .wb-grid {
  width: 1036px;
  min-width: 1036px;
  border-collapse: separate;
  border-spacing: 0;
  table-layout: fixed;
  font-size: 12px;
}
.workbook .wb-grid th,
.workbook .wb-grid td {
  padding: 0;
  border: 0;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  width: 100px;
  min-width: 100px;
  height: 30px;
  text-align: left;
  vertical-align: middle;
}
.workbook .wb-grid th:first-child {
  width: 36px;
  min-width: 36px;
}
.workbook .wb-grid thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--paper-2);
}
.workbook .wb-grid th:first-child {
  position: sticky;
  left: 0;
  z-index: 1;
  background: var(--paper-2);
}
.workbook .wb-grid thead th:first-child {
  z-index: 3;
}
.workbook .wb-grid th button {
  width: 100%;
  height: 29px;
  min-height: 29px;
  border: 0;
  border-radius: 0;
  padding: 3px;
  color: var(--ink-3);
  background: var(--paper-2);
  font: 11px var(--mono);
}
.workbook .wb-grid td input {
  display: block;
  box-sizing: border-box;
  width: 100%;
  height: 29px;
  margin: 0;
  border: 0;
  border-radius: 0;
  padding: 4px 7px;
  background: transparent;
  font: 12px var(--mono);
  color: var(--ink);
  text-overflow: ellipsis;
}
.workbook .wb-grid td input:focus {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
}
.workbook .wb-grid td.wb-selected {
  background: var(--blue-soft);
}
.workbook .wb-grid td.wb-active {
  box-shadow: inset 0 0 0 2px var(--blue);
}
.workbook .wb-grid td.wb-output:not(.wb-selected) {
  background: var(--good-soft);
}
.workbook .wb-grid td.wb-highlight {
  background: var(--yellow-soft);
  box-shadow: inset 0 -2px var(--yellow);
}
.workbook .wb-grid td.wb-error input {
  color: var(--bad);
}
.workbook .wb-grid input[readonly] {
  cursor: cell;
}
.workbook .wb-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 5px 15px;
  padding: 8px 12px;
  font-size: 10px;
  color: var(--ink-3);
  border-top: 1px solid var(--line);
}
.workbook .wb-foot span:first-child {
  font-family: var(--mono);
  color: var(--ink-2);
}
.workbook .wb-status {
  margin: 0;
  padding: 0 12px 10px;
  min-height: 25px;
  font-size: 11px;
  color: var(--ink-2);
  overflow-wrap: anywhere;
}
.workbook .wb-pivot:not(:empty) {
  margin: 0 12px 14px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}
.workbook .wb-pivot h4 {
  font-size: 13px;
  margin: 0 0 4px;
}
.workbook .wb-pivot p {
  font-size: 11px;
  color: var(--ink-3);
}
.workbook .wb-pivot table {
  margin-top: 8px;
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.workbook .wb-pivot th,
.workbook .wb-pivot td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  padding: 7px;
}
.workbook .wb-pivot th {
  color: var(--ink-3);
  font-weight: 500;
}
.workbook dialog {
  width: min(420px, calc(100vw - 32px));
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 24px;
  background: var(--surface);
  color: var(--ink);
}
.workbook dialog::backdrop {
  background: rgba(0, 0, 0, .4);
}
.workbook dialog h3 {
  font-size: 20px;
  margin: 0 0 10px;
}
.workbook dialog p {
  font-size: 14px;
  margin: 0 0 18px;
}
.workbook dialog form {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}
.workbook .wb-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
@media (max-width: 600px) {
  .workbook {
    border-radius: 7px;
  }
  .workbook .wb-toolbar {
    padding: 7px;
    gap: 6px;
  }
  .workbook .wb-formula-bar {
    padding: 8px;
    gap: 5px;
    flex-wrap: wrap;
  }
  .workbook .wb-formula-bar > label:first-child {
    flex-basis: 100%;
  }
  .workbook .wb-formula-bar > span {
    display: none;
  }
  .workbook [data-wb=range] {
    width: 100%;
  }
  .workbook button {
    min-height: 35px;
  }
  .workbook .wb-grid th button,
  .workbook .wb-grid td input {
    height: 34px;
  }
  .workbook .wb-grid th,
  .workbook .wb-grid td {
    height: 35px;
  }
  .workbook .wb-scroll {
    max-height: 400px;
  }
}
.workbook .wb-formula-bar {
  flex-wrap: wrap;
}
.workbook .wb-formula-label {
  min-width: 140px;
}
.workbook [data-wb=choices] {
  max-width: 180px;
}
.workbook [data-wb=choice-label] {
  max-width: 100%;
}
.workbook [data-wb=duplicate-keys] {
  width: 105px;
}

/* apps/excel/dist/charts.css */
.wb-charts {
  margin-top: 24px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  color: var(--ink);
}
.wb-chart-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.wb-chart-heading h3 {
  margin: 3px 0 0;
  font-size: 21px;
  font-weight: 500;
  letter-spacing: -.4px;
}
.wb-chart-heading .eyebrow {
  margin: 0;
}
.wb-chart-intro {
  max-width: 760px;
  margin: 14px 0 18px;
  color: var(--ink-3);
  font-size: 13px;
  line-height: 1.6;
}
.wb-charts form {
  display: grid;
  grid-template-columns: minmax(140px, 2fr) minmax(110px, 1.2fr) minmax(100px, 1fr) minmax(90px, .8fr);
  align-items: end;
  gap: 12px;
}
.wb-charts label {
  display: flex;
  flex-direction: column;
  gap: 7px;
  color: var(--ink-3);
  font-size: 12px;
}
.wb-charts input,
.wb-charts select {
  width: 100%;
  min-width: 0;
  min-height: 38px;
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
}
.wb-charts input:focus-visible,
.wb-charts select:focus-visible,
.wb-charts summary:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}
.wb-chart-actions {
  grid-column: 1/-1;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.wb-chart-actions button,
.wb-chart-heading button {
  min-height: 38px;
}
.wb-charts button[hidden] {
  display: none;
}
.wb-charts button:disabled {
  opacity: .5;
  cursor: not-allowed;
}
.wb-chart-status {
  min-height: 1.5em;
  margin: 14px 0 0;
  font-size: 13px;
  color: var(--ink-3);
}
.wb-chart-empty {
  padding: 22px 15px;
  border: 1px dashed var(--line-strong);
  border-radius: 8px;
  text-align: center;
  font-size: 14px;
  color: var(--ink-3);
}
.wb-chart {
  margin: 18px 0 0;
}
.wb-chart figcaption {
  margin-bottom: 10px;
  font-size: 12px;
  color: var(--ink-3);
}
.wb-chart-picture {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.wb-chart svg {
  display: block;
  width: 100%;
  height: auto;
  min-width: 480px;
}
.wb-chart-table {
  margin-top: 14px;
  font-size: 13px;
}
.wb-chart-table summary {
  cursor: pointer;
  padding: 7px 0;
  color: var(--blue);
}
.wb-chart-table > div {
  overflow-x: auto;
}
.wb-chart-table table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
  font-size: 12px;
}
.wb-chart-table caption {
  padding: 9px;
  color: var(--ink-3);
  text-align: left;
}
.wb-chart-table th,
.wb-chart-table td {
  padding: 9px;
  border-bottom: 1px solid var(--line);
  text-align: right;
  white-space: nowrap;
}
.wb-chart-table th:first-child {
  text-align: left;
}
.wb-chart-table th {
  font-weight: 500;
}
.wb-chart-notes {
  padding-left: 18px;
  color: var(--ink-3);
  font-size: 12px;
  line-height: 1.7;
}
@media (max-width: 700px) {
  .wb-charts {
    padding: 16px;
  }
  .wb-charts form {
    grid-template-columns: 1fr 1fr;
  }
  .wb-chart-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }
  .wb-chart-actions {
    gap: 6px;
  }
}
@media (max-width: 380px) {
  .wb-charts form {
    grid-template-columns: 1fr;
  }
}

/* packages/subjects/workspaces.css */
.gv-mail,
.gv-excel,
.gv-scenario {
  min-width: 0;
  max-width: 100%;
  color: var(--ink,#16263e);
  font-size: 13px;
  line-height: 1.7;
}
.gv-workspace-actions {
  display: flex;
  gap: .6rem;
  flex-wrap: wrap;
  align-items: center;
  margin: .75rem 0;
}
.gv-workspace-actions > span {
  font-size: .85rem;
  color: var(--ink-3,#5b6b7c);
}
.gv-mail button,
.gv-scenario button,
.gv-excel .gv-workspace-actions button {
  border: 1px solid var(--line-strong,#b7c5d5);
  border-radius: 6px;
  padding: .55rem .75rem;
  background: var(--surface,#fff);
  color: inherit;
  cursor: pointer;
}
.gv-mail button[aria-pressed=true],
.gv-scenario button[aria-pressed=true],
.gv-excel .gv-workspace-actions button[aria-pressed=true] {
  border-color: var(--blue,#2463a6);
  background: var(--blue-soft,#e9f0fa);
}
.gv-mail label,
.gv-excel > label,
.gv-excel label,
.gv-scenario label {
  display: block;
  margin: .5rem 0;
}
.gv-mail input:not([type=checkbox]),
.gv-mail select,
.gv-mail textarea,
.gv-excel textarea,
.gv-scenario select,
.gv-scenario textarea {
  display: block;
  max-width: 100%;
  padding: .55rem;
  border: 1px solid var(--line-strong,#b7c5d5);
  border-radius: 5px;
  background: var(--surface,#fff);
  color: inherit;
  font: inherit;
}
.gv-excel textarea,
.gv-scenario textarea,
.gv-mail-compose textarea {
  width: 100%;
  box-sizing: border-box;
}
.gv-excel textarea {
  font-family: var(--mono,monospace);
}
.gv-mail-columns {
  display: grid;
  grid-template-columns: 130px minmax(200px, 1fr) minmax(260px, 1.2fr);
  gap: 1rem;
  border-top: 1px solid var(--line,#dde4ed);
  padding-top: 1rem;
}
.gv-mail-columns nav {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  align-items: stretch;
}
.gv-mail-list {
  min-width: 0;
  max-height: 650px;
  overflow: auto;
}
.gv-mail-row {
  display: flex;
  gap: .5rem;
  border-bottom: 1px solid var(--line,#dde4ed);
  align-items: center;
}
.gv-mail-row > button {
  flex: 1;
  min-width: 0;
  border: 0;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: .3rem;
  width: 100%;
}
.gv-mail-row span,
.gv-mail-row strong {
  overflow-wrap: anywhere;
}
.gv-mail-row:not(.unread) > button {
  opacity: .8;
  font-weight: 400;
}
.gv-mail-reading {
  overflow-wrap: anywhere;
}
.gv-mail-body {
  white-space: pre-wrap;
}
.gv-mail-compose {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}
.gv-mail-compose input {
  width: 100%;
  box-sizing: border-box;
}
.gv-scenario fieldset {
  border: 1px solid var(--line,#dde4ed);
  border-radius: 6px;
  padding: 1rem;
}
.gv-scenario fieldset label {
  padding: .4rem;
}
.gv-scenario [data-chapter] {
  font-size: .85rem;
}
.gv-scenario details {
  margin: 1rem 0;
  padding: 1rem;
  background: var(--paper-2,#f1f5f9);
}
@media (max-width: 900px) {
  .gv-mail-columns {
    grid-template-columns: 1fr;
  }
  .gv-mail-columns nav {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .gv-mail-list {
    max-height: 340px;
  }
}
.gv-excel > label textarea {
  min-height: 72px;
}
.gv-mail h3,
.gv-scenario h3 {
  font-size: 15px;
  font-weight: 500;
}
.gv-mail-reading > p,
.gv-scenario > p {
  margin: 10px 0;
  color: var(--ink-2);
}
.gv-mail-compose textarea,
.gv-scenario textarea {
  white-space: pre-wrap;
}
.gv-scenario pre {
  overflow: auto;
  font: 12px/1.8 var(--mono);
}