html { background: #17191b; color-scheme: dark; }
html.theme-light { background: #fafafa; color-scheme: light; }
body.onboarding-page {
  --ob-bg: #17191b;
  --ob-panel: #202326;
  --ob-ink: #f3f3f3;
  --ob-muted: #a9adb1;
  --ob-line: #383c40;
  --ob-accent: #ff6f99;
  --ob-accent-ink: #28121b;
  margin: 0;
  background: var(--ob-bg);
  color: var(--ob-ink);
  font: 14px/1.6 system-ui, sans-serif;
}
html.theme-light body.onboarding-page {
  --ob-bg: #fafafa;
  --ob-panel: #fff;
  --ob-ink: #252629;
  --ob-muted: #62666c;
  --ob-line: #d6d8dc;
  --ob-accent: #f75383;
}
.onboarding-page *, .onboarding-page *::before, .onboarding-page *::after { box-sizing: border-box; }
.onboarding-page [hidden] { display: none !important; }
.onboarding-page a { color: inherit; text-decoration: none; }
.onboarding-page a:hover { text-decoration: underline; text-underline-offset: 3px; }
.onboarding-page :is(button, input, select, textarea) { font: inherit; }
.onboarding-page button { cursor: pointer; }
.onboarding-page :focus-visible { outline: 2px solid var(--ob-accent); outline-offset: 4px; }
.onboarding-page h1, .onboarding-page h2, .onboarding-page h3, .onboarding-page p { margin: 0; }
.onboarding-page h2 { font-size: 22px; font-weight: 600; line-height: 1.3; letter-spacing: -.5px; }
.site-width { width: min(1360px, calc(100% - 64px)); margin-inline: auto; }
.public-skip { position: fixed; top: -100px; left: 16px; z-index: 100; padding: 10px 14px; border: 1px solid var(--ob-line); border-radius: 5px; background: var(--ob-panel); }
.public-skip:focus { top: 16px; }
.public-header { display: flex; align-items: center; gap: 36px; min-height: 76px; border-bottom: 1px solid var(--ob-line); }
.public-brand { display: inline-flex; align-items: center; gap: 9px; white-space: nowrap; font-size: 20px; font-weight: 650; letter-spacing: -.8px; }
.public-brand img { border-radius: 6px; }
.public-brand .brand-dot { color: var(--ob-accent); }
.onboarding-page .public-brand:hover { text-decoration: none; }
.public-nav { display: flex; gap: 24px; color: var(--ob-muted); font-size: 13px; }
.public-nav a { display: inline-flex; align-items: center; min-height: 40px; }
.header-actions { display: flex; align-items: center; gap: 22px; margin-left: auto; font-size: 13px; }
.public-theme-toggle { display: grid; place-items: center; flex-shrink: 0; width: 36px; height: 36px; padding: 0; border: 1px solid var(--ob-line); border-radius: 5px; background: transparent; color: var(--ob-muted); font-size: 20px !important; }
.public-theme-toggle:hover { color: var(--ob-ink); }
.public-button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 11px 20px; border: 1px solid transparent; border-radius: 5px; background: var(--ob-accent); color: var(--ob-accent-ink) !important; font-size: 14px; font-weight: 600; white-space: nowrap; }
.onboarding-page .public-button:hover { text-decoration: none; filter: brightness(1.06); }
.public-button.button-small { min-height: 38px; padding: 8px 13px; font-size: 12px; }
.tour-section { padding-top: 28px; scroll-margin-top: 12px; }
.tour-intro { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 0 2px 22px; }
.tour-intro h1 { font-size: 30px; font-weight: 650; line-height: 1.2; letter-spacing: -1.2px; }
.tour-intro p { margin-top: 6px; color: var(--ob-muted); font-size: 14px; }
.tour-runtime { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; color: var(--ob-muted); font-size: 11px; white-space: nowrap; }
#tour-duration { color: var(--ob-ink); font-size: 18px; font-variant-numeric: tabular-nums; }
.tour-stage { position: relative; overflow: hidden; aspect-ratio: 240/121; border: 1px solid var(--ob-line); border-radius: 10px; background: #080a0c; box-shadow: 0 20px 55px -35px #000b; }
.tour-player { display: block; width: 100%; height: 100%; object-fit: contain; background: #080a0c; }
.tour-play { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); display: flex; flex-direction: column; align-items: center; gap: 9px; min-width: 144px; padding: 20px 24px; border: 1px solid #ffffff42; border-radius: 9px; background: #111417ed; color: #fff; box-shadow: 0 8px 30px #0007; }
.tour-play:hover { background: #1d2025; border-color: var(--ob-accent); }
.tour-play svg { width: 38px; height: 38px; fill: var(--ob-accent); }
.tour-play > span { font-size: 15px; font-weight: 600; }
.tour-play small { color: #b8bcc2; font-size: 11px; }
.tour-chapters { display: flex; gap: 0; max-width: 100%; margin-top: 10px; overflow-x: auto; border-bottom: 1px solid var(--ob-line); scrollbar-width: thin; scrollbar-color: var(--ob-line) transparent; }
.tour-chapters button { display: flex; flex-direction: column; align-items: flex-start; flex-shrink: 0; gap: 2px; min-height: 61px; padding: 9px 16px 12px; border: 0; border-bottom: 2px solid transparent; border-radius: 0; background: transparent; color: var(--ob-muted); font-size: 12px; white-space: nowrap; }
.tour-chapters button:first-child { padding-left: 2px; }
.tour-chapters button:hover { color: var(--ob-ink); }
.tour-chapters button[aria-current="true"] { color: var(--ob-ink); border-bottom-color: var(--ob-accent); }
.tour-chapters button span { color: var(--ob-muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.tour-status { margin-top: 12px !important; color: var(--ob-muted); font-size: 13px; }
.tour-status:empty { display: none; }
.tour-caption { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; padding: 12px 2px 0; color: var(--ob-muted); font-size: 11px; }
.tour-caption a { flex-shrink: 0; text-decoration: underline; text-underline-offset: 3px; }
.account-bar { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 24px; padding: 22px 24px; border: 1px solid var(--ob-line); border-radius: 8px; background: var(--ob-panel); }
.account-bar p { font-size: 15px; font-weight: 500; }
.account-bar > div > a:not(.public-button) { color: var(--ob-muted); font-size: 12px; text-decoration: underline; text-underline-offset: 3px; }
.account-actions { display: flex; align-items: center; gap: 24px; }
.account-actions .account-login { font-size: 13px !important; }
.features-section, .schools-section, .help-section { margin-top: 56px; padding-top: 28px; border-top: 1px solid var(--ob-line); scroll-margin-top: 24px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px 48px; list-style: none; margin: 28px 0 0; padding: 0; }
.feature-grid li { min-width: 0; scroll-margin-top: 24px; }
.feature-grid h3 { margin-bottom: 8px; font-size: 17px; font-weight: 600; letter-spacing: -.2px; }
.feature-grid p { max-width: 43ch; color: var(--ob-muted); font-size: 13px; line-height: 1.7; }
.feature-grid a { display: inline-block; margin: 12px 16px 0 0; font-size: 13px; text-decoration: underline; text-underline-offset: 3px; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.schools-section > p { margin-top: -6px; color: var(--ob-muted); font-size: 13px; }
.school-site-link { font-size: 13px; text-decoration: underline !important; text-underline-offset: 3px; }
.school-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 24px; margin-top: 24px; }
.school-card { display: flex; align-items: center; gap: 12px; min-width: 0; padding: 17px 0; border-bottom: 1px solid var(--ob-line); font-size: 13px; line-height: 1.4; }
.school-card img { flex-shrink: 0; width: 40px; height: 40px; padding: 3px; border: 1px solid #ddd; border-radius: 5px; background: #fff; object-fit: contain; }
.school-card small { display: block; margin-top: 3px; color: var(--ob-muted); font-size: 11px; }
.help-section { display: grid; grid-template-columns: 1fr 2fr; gap: 48px; }
.help-list details { padding: 18px 0; border-bottom: 1px solid var(--ob-line); }
.help-list details:first-child { padding-top: 0; }
.help-list summary { font-size: 14px; cursor: pointer; }
.help-list p { margin-top: 12px; color: var(--ob-muted); font-size: 13px; line-height: 1.8; }
.help-list a { text-decoration: underline; text-underline-offset: 3px; }
.public-footer { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin-top: 64px; padding: 24px 0 32px; border-top: 1px solid var(--ob-line); color: var(--ob-muted); font-size: 12px; }
.public-footer nav { display: flex; flex-wrap: wrap; gap: 12px 20px; }
.public-footer a { display: inline-block; padding-block: 6px; }
@media (max-width: 1000px) {
  .public-header { gap: 24px; }
  .public-nav { gap: 18px; }
  .header-actions { gap: 16px; }
  .school-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-grid { column-gap: 24px; }
  .public-footer { flex-direction: column; gap: 10px; }
}
@media (max-width: 760px) {
  .site-width { width: calc(100% - 32px); }
  .public-header { flex-wrap: wrap; gap: 6px 16px; padding: 16px 0 10px; }
  .public-nav { order: 3; width: 100%; gap: 24px; }
  .header-actions { gap: 16px; }
  .header-actions .button-small { display: none; }
  .tour-section { padding-top: 22px; }
  .tour-intro { padding-bottom: 18px; gap: 16px; }
  .tour-intro h1 { font-size: 26px; }
  .tour-intro p { font-size: 13px; }
  .tour-stage { aspect-ratio: 16/10; border-radius: 7px; }
  .tour-play { min-width: 126px; padding: 13px 18px; gap: 6px; }
  .tour-play svg { width: 30px; height: 30px; }
  .tour-play > span { font-size: 14px; }
  .tour-chapters button { min-height: 58px; padding-inline: 12px; font-size: 11px; }
  .tour-caption { flex-direction: column; gap: 8px; padding-top: 12px; font-size: 10px; }
  .account-bar { align-items: flex-start; flex-direction: column; gap: 18px; padding: 18px; }
  .account-bar p { font-size: 14px; }
  .account-actions { width: 100%; gap: 24px; }
  .account-actions .public-button { flex: 1; }
  .features-section, .schools-section, .help-section { margin-top: 36px; padding-top: 24px; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 24px; }
  .school-grid { column-gap: 18px; }
  .school-card { gap: 9px; font-size: 12px; }
  .school-card img { width: 34px; height: 34px; }
  .help-section { grid-template-columns: 1fr; gap: 24px; }
  .public-footer { margin-top: 40px; }
}
@media (max-width: 380px) {
  .school-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .public-brand { font-size: 18px; }
  .header-actions { gap: 12px; }
}