:root {
  color-scheme: dark;
  --canvas: #000000;
  --surface: #f5f5f7;
  --card: #141416;
  --card-solid: #141416;
  --card-raised: #1c1c1e;
  --ink: #f5f5f7;
  --secondary: #a8a8ad;
  --tertiary: #737378;
  --accent: #a8bfa8;
  --accent-deep: #c2d6c1;
  --accent-soft: rgba(168, 191, 168, .14);
  --warm: #d9a77a;
  --warm-soft: rgba(217, 167, 122, .12);
  --cool: #a9b7c9;
  --cool-soft: rgba(169, 183, 201, .12);
  --warning: #e29379;
  --danger: #e29379;
  --line: rgba(255, 255, 255, .12);
  --line-strong: rgba(255, 255, 255, .2);
  --field: rgba(255, 255, 255, .055);
  --hover: rgba(255, 255, 255, .055);
  --header: #000000;
  --code: #0c0c0d;
  --on-accent: #101510;
  --header-height: 68px;
  --font: "Meican Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

html[data-theme="light"] {
  color-scheme: light;
  --canvas: #f4efe5;
  --surface: #2c2820;
  --card: #fffdf7;
  --card-solid: #fffdf7;
  --card-raised: #ffffff;
  --ink: #29251e;
  --secondary: #716b61;
  --tertiary: #8d8679;
  --accent: #728e71;
  --accent-deep: #4d6b50;
  --accent-soft: rgba(85, 122, 88, .12);
  --warm: #a56f3e;
  --warm-soft: rgba(165, 111, 62, .1);
  --cool: #5e7186;
  --cool-soft: rgba(94, 113, 134, .1);
  --warning: #b2553d;
  --danger: #b2553d;
  --line: rgba(74, 63, 46, .13);
  --line-strong: rgba(74, 63, 46, .22);
  --field: rgba(91, 76, 55, .055);
  --hover: rgba(0, 0, 0, .04);
  --header: #f4efe5;
  --code: #eae4d9;
  --on-accent: #ffffff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 28px); }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.menu-open { overflow: hidden; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex: 0 0 auto; }
button { border: 0; cursor: pointer; }
::selection { color: var(--ink); background: var(--accent-soft); }
:focus-visible { outline: 2px solid var(--accent-deep); outline-offset: 4px; }
.svg-defs { position: absolute; width: 0; height: 0; overflow: hidden; }
.skip-link { position: fixed; z-index: 1000; top: 12px; left: 12px; padding: 10px 16px; border-radius: 12px; background: var(--accent); color: #000; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  height: var(--header-height);
  background: var(--header);
  border-bottom: 1px solid var(--line);
}
.header-inner { height: 100%; max-width: 1500px; margin: auto; padding: 0 36px; display: flex; align-items: center; gap: clamp(32px, 4vw, 64px); }
.brand { flex: 0 0 210px; font-size: 16px; font-weight: 600; letter-spacing: -.45px; }
.sidebar-inner { scrollbar-width: none; -ms-overflow-style: none; }
.sidebar-inner::-webkit-scrollbar { display: none; width: 0; height: 0; }
.top-nav { display: flex; align-items: stretch; height: 100%; gap: 28px; }
.top-nav a { position: relative; display: grid; place-items: center; color: var(--secondary); font-size: 13px; transition: color 170ms ease-out; }
.top-nav a:hover, .top-nav a.active { color: var(--ink); }
.top-nav a.active::after { content: ""; position: absolute; bottom: -1px; left: 0; right: 0; height: 2px; border-radius: 2px; background: var(--accent); }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.icon-button { width: 42px; height: 42px; padding: 0; display: inline-grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: transparent; transition: background 170ms ease-out, transform 170ms ease-out; }
.icon-button:hover { background: var(--hover); }
.icon-button:active { transform: scale(.97); opacity: .9; }
.search-trigger { height: 38px; min-width: 178px; display: flex; align-items: center; gap: 9px; padding: 0 8px 0 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--field); color: var(--tertiary); font-size: 12px; }
.search-trigger svg { width: 16px; height: 16px; }
.search-trigger kbd { margin-left: auto; min-width: 22px; height: 22px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 6px; color: var(--secondary); font: 11px var(--font); }
.search-trigger:hover { border-color: var(--line-strong); color: var(--secondary); }
.theme-icon-sun { display: none; }
html[data-theme="light"] .theme-icon-sun { display: block; }
html[data-theme="light"] .theme-icon-moon { display: none; }
.header-download { display: flex; align-items: center; gap: 7px; height: 38px; padding: 0 14px; border-radius: 12px; background: var(--surface); color: var(--canvas); font-size: 12px; font-weight: 600; }
.header-download svg { width: 15px; height: 15px; }
.mobile-menu { display: none; }
.sidebar-scrim { display: none; }

.page-shell { max-width: 1500px; margin: 0 auto; padding: 0 36px; display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: clamp(32px, 4vw, 64px); align-items: start; }
.sidebar { position: sticky; top: var(--header-height); height: calc(100vh - var(--header-height)); min-width: 0; }
.sidebar-inner { height: 100%; display: flex; flex-direction: column; padding: 38px 0 24px; overflow-y: auto; scrollbar-width: none; -ms-overflow-style: none; }
.side-nav { display: grid; gap: 28px; }
.nav-group { display: grid; gap: 3px; }
.nav-label { margin: 0 0 8px 13px; color: var(--tertiary); font-size: 10px; font-weight: 600; letter-spacing: 1.2px; text-transform: uppercase; }
.nav-group a { position: relative; padding: 7px 12px; border-radius: 9px; color: var(--secondary); font-size: 12.5px; transition: color 170ms ease-out, background 170ms ease-out; }
.nav-group a:hover { color: var(--ink); background: var(--hover); }
.nav-group a.active { color: var(--ink); background: var(--accent-soft); }
.nav-group a.active::before { content: ""; position: absolute; left: 0; top: 10px; bottom: 10px; width: 2px; border-radius: 2px; background: var(--accent); }
.sidebar-meta { margin-top: auto; padding: 30px 12px 0; display: flex; align-items: center; gap: 6px; color: var(--tertiary); font-size: 10px; white-space: nowrap; }
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.meta-separator { opacity: .5; }
main { width: 100%; min-width: 0; }

.hero { padding: clamp(72px, 9vw, 116px) 0 clamp(64px, 8vw, 96px); }
.eyebrow { margin: 0 0 22px; color: var(--ink); font-size: 10px; font-weight: 600; letter-spacing: 1.7px; }
.hero h1 { max-width: 940px; margin: 0; font-size: clamp(48px, 5.4vw, 78px); line-height: 1.08; letter-spacing: -3px; font-weight: 600; }
.hero-actions { margin-top: 38px; display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; }
.button { min-height: 48px; display: inline-flex; justify-content: center; align-items: center; gap: 9px; padding: 0 20px; border: 1px solid transparent; border-radius: 999px; font-size: 13px; font-weight: 600; line-height: 1; transition: transform 170ms ease-out, opacity 170ms ease-out, background 170ms ease-out, border-color 170ms ease-out; }
.button svg { width: 17px; height: 17px; }
.button:hover { opacity: .88; }
.button:active, .button.is-pressing { transform: scale(.97); opacity: .9; }
.button:disabled { cursor: wait; opacity: .65; transform: none; }
.button-primary { min-height: 52px; background: var(--surface); color: var(--canvas); }
.button-secondary { background: var(--field); color: var(--ink); border-color: var(--line); }
.button-secondary:hover { background: var(--hover); border-color: var(--line-strong); }
.button-quiet { padding-left: 6px; padding-right: 6px; background: transparent; color: var(--ink); }
.button-danger { background: var(--danger); color: #fff; }
.text-link { display: inline-flex; align-items: center; gap: 7px; color: var(--secondary); font-size: 12px; font-weight: 500; }
.text-link:hover { color: var(--ink); }
.text-link svg { width: 15px; height: 15px; }
.status-tag { display: inline-flex; align-items: center; padding: 5px 9px; border-radius: 8px; background: var(--accent-soft); color: var(--accent-deep); font-size: 10px; font-weight: 600; white-space: nowrap; }
.meal-icon { width: 35px; height: 35px; display: inline-grid; place-items: center; flex: 0 0 auto; border-radius: 11px; }
.meal-icon svg { width: 16px; height: 16px; }
.meal-icon.warm { color: var(--warm); background: var(--warm-soft); }
.meal-icon.sage { color: var(--accent-deep); background: var(--accent-soft); }
.meal-icon.cool { color: var(--cool); background: var(--cool-soft); }

.doc-section { padding: 82px 0 0; }
.section-header { max-width: 660px; margin-bottom: 42px; }
.section-index { margin: 0 0 17px; color: var(--accent-deep); font-size: 9px; font-weight: 600; letter-spacing: 1.4px; }
.section-header h2 { margin: 0; font-size: clamp(34px, 3.5vw, 48px); line-height: 1.15; letter-spacing: -1.8px; font-weight: 600; }
.section-header > p:last-child { margin: 18px 0 0; color: var(--secondary); font-size: 14px; line-height: 1.9; }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.principle-card { min-height: 218px; padding: 23px; border: 1px solid var(--line); border-radius: 24px; background: var(--card); }
.principle-card > span { display: block; margin-bottom: 36px; color: var(--accent-deep); font-size: 10px; font-variant-numeric: tabular-nums; }
.principle-card h3 { margin: 0; font-size: 17px; letter-spacing: -.3px; }
.principle-card p { margin: 10px 0 0; color: var(--secondary); font-size: 12px; line-height: 1.8; }
.guideline-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 14px; }
.guideline { padding: 18px 20px; border: 1px solid var(--line); border-radius: 18px; }
.guideline > span { display: flex; align-items: center; gap: 6px; font-size: 10px; font-weight: 600; }
.guideline > span svg { width: 14px; height: 14px; }
.guideline p { margin: 8px 0 0; color: var(--secondary); font-size: 11px; line-height: 1.7; }
.guideline.do > span { color: var(--accent-deep); }
.guideline.dont > span { color: var(--warning); }
.section-group > .section-header { padding-bottom: 36px; border-bottom: 1px solid var(--line); }
.doc-article { padding: 64px 0; border-bottom: 1px solid var(--line); content-visibility: auto; contain-intrinsic-size: auto 800px; }
.doc-article:last-child { border-bottom: 0; }
.article-heading { display: grid; grid-template-columns: 42px 1fr; gap: 12px; margin-bottom: 30px; }
.article-heading > span { padding-top: 6px; color: var(--tertiary); font-size: 9px; font-variant-numeric: tabular-nums; }
.article-heading h3 { margin: 0; font-size: 26px; line-height: 1.25; letter-spacing: -.8px; }
.article-heading p { max-width: 580px; margin: 10px 0 0; color: var(--secondary); font-size: 13px; line-height: 1.8; }
.minor-heading { margin: 28px 0 14px; font-size: 12px; font-weight: 600; }
.body-copy { margin: 20px 0 0; color: var(--secondary); font-size: 12px; line-height: 1.9; }
.inline-note { display: flex; align-items: flex-start; gap: 8px; margin: 18px 0 0; color: var(--tertiary); font-size: 10px; line-height: 1.8; }
.inline-note svg { width: 14px; height: 14px; margin-top: 1px; }

.theme-palettes { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.palette-card { padding: 15px; border: 1px solid var(--line); border-radius: 24px; background: var(--card); }
.palette-heading { display: flex; justify-content: space-between; align-items: center; padding: 2px 3px 14px; }
.palette-heading > div { display: flex; align-items: center; gap: 7px; }
.palette-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.palette-heading strong { font-size: 12px; }
.palette-heading small, .palette-heading > span { color: var(--tertiary); font-size: 9px; }
.palette-canvas { padding: 24px; border-radius: 16px; }
.dark-canvas { background: #000; }
.light-canvas { background: #f4efe5; }
.palette-sample-card { padding: 18px; border: 1px solid rgba(255,255,255,.13); border-radius: 18px; background: #141416; color: #f5f5f7; }
.light-canvas .palette-sample-card { border-color: rgba(74,63,46,.12); background: #fffdf7; color: #29251e; }
.palette-sample-card > span { color: #a8a8ad; font-size: 9px; }
.light-canvas .palette-sample-card > span { color: #716b61; }
.palette-sample-card strong { display: block; margin: 8px 0 15px; font-size: 28px; line-height: 1; letter-spacing: -1.2px; font-variant-numeric: tabular-nums; }
.palette-sample-card small { margin-left: 5px; color: #a8a8ad; font-size: 8px; font-weight: 400; letter-spacing: 0; }
.palette-sample-card i { display: block; width: 68%; height: 4px; border-radius: 4px; background: #a8bfa8; }
.light-canvas .palette-sample-card i { background: #728e71; }
.palette-card > code { display: block; padding: 12px 3px 0; color: var(--tertiary); font-size: 9px; }
.swatch-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.swatch { min-width: 0; display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 10px; padding: 10px; text-align: left; border: 1px solid var(--line); border-radius: 14px; background: transparent; }
.swatch:hover { background: var(--hover); }
.swatch > i { width: 34px; height: 34px; border: 1px solid var(--line); border-radius: 10px; background: var(--swatch); }
.swatch > span { min-width: 0; }
.swatch strong, .swatch small { display: block; }
.swatch strong { font-size: 10px; font-weight: 500; }
.swatch small { margin-top: 2px; color: var(--tertiary); font-size: 8px; }
.swatch code { color: var(--tertiary); font-size: 8px; }
.type-specimen { border: 1px solid var(--line); border-radius: 26px; background: var(--card); overflow: hidden; }
.type-display { padding: 34px; }
.type-display > span { display: block; font-size: clamp(25px, 3.4vw, 40px); font-weight: 600; letter-spacing: -1.4px; }
.type-display > strong { display: block; margin-top: 30px; font-size: clamp(58px, 8vw, 86px); line-height: .95; letter-spacing: -4px; font-variant-numeric: tabular-nums; }
.type-display small { margin-left: 12px; color: var(--secondary); font-size: 12px; font-weight: 400; letter-spacing: 0; }
.type-details { display: flex; flex-wrap: wrap; gap: 10px 24px; padding: 14px 22px; border-top: 1px solid var(--line); color: var(--tertiary); font-size: 9px; }
.token-table-wrap { margin-top: 16px; border: 1px solid var(--line); border-radius: 18px; overflow-x: auto; }
.token-table { width: 100%; border-collapse: collapse; text-align: left; }
.token-table th { padding: 11px 16px; background: var(--field); color: var(--tertiary); font-size: 8px; font-weight: 500; }
.token-table td { padding: 12px 16px; border-top: 1px solid var(--line); color: var(--secondary); font-size: 9px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.type-row { color: var(--ink); font-weight: 600; }
.large-title { font-size: 19px; letter-spacing: -.6px; }
.page-title { font-size: 17px; letter-spacing: -.4px; }
.section-title { font-size: 15px; }
.body-title { font-size: 13px; font-weight: 400; }
.footnote-title { color: var(--secondary); font-size: 11px; font-weight: 400; }
.rule-list { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 22px; }
.rule-list p { margin: 0; color: var(--secondary); font-size: 11px; line-height: 1.8; }
.rule-list strong { display: block; margin-bottom: 4px; color: var(--ink); font-size: 11px; }
.spacing-demo { min-height: 180px; display: flex; align-items: flex-end; justify-content: space-around; gap: 14px; padding: 28px 24px 20px; border: 1px solid var(--line); border-radius: 24px; background: var(--card); }
.spacing-demo > div { height: 120px; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; gap: 10px; }
.spacing-demo i { display: block; width: var(--size); min-width: 4px; height: var(--size); min-height: 4px; border-radius: 3px; background: var(--accent); }
.spacing-demo span { color: var(--tertiary); font-size: 9px; font-variant-numeric: tabular-nums; }
.measurement-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 16px; border: 1px solid var(--line); border-radius: 16px; background: var(--line); overflow: hidden; }
.measurement-grid > div { padding: 17px; background: var(--canvas); }
.measurement-grid strong { display: block; font-size: 15px; font-variant-numeric: tabular-nums; }
.measurement-grid span { display: block; margin-top: 5px; color: var(--tertiary); font-size: 8px; }
.radius-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.radius-grid > div { min-width: 0; padding: 16px 10px; text-align: center; border: 1px solid var(--line); border-radius: 18px; background: var(--card); }
.radius-grid i { display: block; width: 64px; height: 64px; margin: 4px auto 15px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--accent-soft); }
.radius-grid strong, .radius-grid span { display: block; }
.radius-grid strong { font-size: 11px; }
.radius-grid span { margin-top: 3px; color: var(--tertiary); font-size: 8px; }
.compact-guidelines { margin-top: 16px; }
.motion-demo { display: flex; align-items: center; gap: 28px; padding: 28px; border: 1px solid var(--line); border-radius: 24px; background: var(--card); }
.motion-readout { padding-left: 28px; border-left: 1px solid var(--line); }
.motion-readout span, .motion-readout strong, .motion-readout small { display: block; }
.motion-readout span { color: var(--accent-deep); font-size: 8px; letter-spacing: 1px; }
.motion-readout strong { margin-top: 3px; font-size: 22px; font-variant-numeric: tabular-nums; }
.motion-readout small { margin-top: 3px; color: var(--tertiary); font-size: 8px; }
.duration-list { display: grid; gap: 13px; margin-top: 24px; }
.duration-list > div { display: grid; grid-template-columns: 75px 1fr 52px; align-items: center; gap: 12px; color: var(--secondary); font-size: 9px; }
.duration-list i { position: relative; height: 3px; border-radius: 3px; background: var(--field); overflow: hidden; }
.duration-list i::after { content: ""; position: absolute; inset: 0; width: var(--duration); border-radius: inherit; background: var(--accent); }
.duration-list b { text-align: right; color: var(--tertiary); font-weight: 400; font-variant-numeric: tabular-nums; }

.component-demo { padding: 24px; border: 1px solid var(--line); border-radius: 26px; background: var(--card); }
.demo-label { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 24px; }
.demo-label > span { color: var(--secondary); font-size: 10px; }
.demo-label > small { color: var(--tertiary); font-size: 8px; letter-spacing: .6px; }
.button-showcase { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.anatomy-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 14px; border: 1px solid var(--line); border-radius: 16px; }
.anatomy-grid > div { padding: 15px 20px; }
.anatomy-grid > div + div { border-left: 1px solid var(--line); }
.anatomy-grid span { color: var(--tertiary); font-size: 9px; }
.anatomy-grid strong { margin-left: 10px; font-size: 11px; font-variant-numeric: tabular-nums; }
.segmented { display: grid; grid-template-columns: repeat(4, 1fr); gap: 3px; padding: 4px; border: 1px solid var(--line); border-radius: 15px; background: var(--field); }
.segmented button { min-height: 38px; border-radius: 11px; background: transparent; color: var(--secondary); font-size: 11px; transition: color 240ms ease-out, background 240ms ease-out, transform 170ms ease-out; }
.segmented button:active { transform: scale(.97); }
.segmented button.selected { background: var(--surface); color: var(--canvas); font-weight: 600; }
.selection-result { display: flex; align-items: center; gap: 12px; margin-top: 14px; padding: 14px; border-radius: 16px; background: var(--field); }
.selection-result > div { flex: 1; }
.selection-result small, .selection-result strong { display: block; }
.selection-result small { color: var(--tertiary); font-size: 8px; }
.selection-result strong { margin-top: 2px; font-size: 13px; }
.selection-result > span:last-child { color: var(--secondary); font-size: 10px; font-variant-numeric: tabular-nums; }
.choice-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.choice-row button, .preset-row button { min-height: 40px; padding: 0 16px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--secondary); font-size: 10px; transition: background 170ms ease-out, color 170ms ease-out, transform 170ms ease-out; }
.choice-row button:active, .preset-row button:active { transform: scale(.97); }
.choice-row button.selected { background: var(--surface); color: var(--canvas); border-color: transparent; }
.field-label { display: block; margin-bottom: 8px; font-size: 11px; font-weight: 600; }
.input-wrap { height: 54px; display: flex; align-items: center; gap: 10px; padding: 0 16px; border: 1px solid var(--line); border-radius: 17px; background: var(--field); transition: border-color 170ms ease-out; }
.input-wrap:focus-within { border-color: var(--accent-deep); outline: 1px solid var(--accent-deep); }
.input-wrap > svg { width: 18px; height: 18px; color: var(--accent-deep); }
.input-wrap input { width: 100%; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--ink); font-size: 18px; font-weight: 600; font-variant-numeric: tabular-nums; }
.input-wrap input::-webkit-inner-spin-button { appearance: none; }
.input-wrap > span { color: var(--secondary); font-size: 11px; }
.field-help { margin: 7px 0 0; color: var(--tertiary); font-size: 9px; }
.preset-row { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.preset-row button { min-height: 34px; padding: 0 12px; font-size: 9px; }
.preset-row button:hover { background: var(--hover); color: var(--ink); }
.conversion-result { position: relative; margin-top: 22px; padding: 20px; border: 1px solid var(--line); border-radius: 20px; background: var(--accent-soft); overflow: hidden; }
.conversion-result > span { color: var(--accent-deep); font-size: 9px; }
.conversion-result strong { display: block; margin-top: 7px; font-size: 38px; line-height: 1; letter-spacing: -1.5px; font-variant-numeric: tabular-nums; }
.conversion-result small { margin-left: 8px; color: var(--secondary); font-size: 10px; font-weight: 400; letter-spacing: 0; }
.conversion-result i { position: absolute; width: 130px; height: 130px; top: -58px; right: -40px; border: 18px solid var(--line); border-radius: 50%; }
.grouped-card { border: 1px solid var(--line); border-radius: 22px; background: var(--canvas); overflow: hidden; }
.record-row { width: 100%; min-height: 72px; display: flex; align-items: center; gap: 12px; padding: 12px 16px; text-align: left; background: transparent; }
.record-row:hover { background: var(--hover); }
.record-row:active { opacity: .9; }
.record-row + .record-row { position: relative; }
.record-row + .record-row::before { content: ""; position: absolute; top: 0; left: 63px; right: 0; height: 1px; background: var(--line); }
.record-copy { min-width: 0; flex: 1; }
.record-copy strong, .record-copy small { display: block; }
.record-copy strong { font-size: 12px; }
.record-copy small { margin-top: 4px; color: var(--tertiary); font-size: 9px; }
.record-value { font-size: 14px; font-weight: 600; font-variant-numeric: tabular-nums; }
.record-value small { margin-left: 4px; color: var(--tertiary); font-size: 8px; font-weight: 400; }
.row-chevron { width: 13px; height: 13px; color: var(--tertiary); }
.chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.chart-card { min-width: 0; padding: 22px; border: 1px solid var(--line); border-radius: 24px; background: var(--card); }
.chart-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.chart-heading > div > span { display: block; color: var(--secondary); font-size: 9px; }
.chart-heading strong { display: block; margin-top: 7px; font-size: 25px; line-height: 1; letter-spacing: -1px; font-variant-numeric: tabular-nums; }
.chart-heading small { margin-left: 5px; color: var(--tertiary); font-size: 8px; font-weight: 400; letter-spacing: 0; }
.trend-down { color: var(--accent-deep); font-size: 8px; }
.bar-chart { height: 130px; display: flex; align-items: flex-end; gap: 8px; margin-top: 26px; }
.bar-chart > div { height: 100%; flex: 1; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; gap: 8px; }
.bar-chart i { display: block; width: min(100%, 16px); height: var(--bar); border-radius: 5px; background: var(--accent); opacity: .38; }
.bar-chart .today i { opacity: 1; }
.bar-chart span { color: var(--tertiary); font-size: 8px; }
.line-chart { display: block; width: 100%; height: auto; margin-top: 22px; overflow: visible; }
.line-chart .goal-line { stroke: var(--line-strong); stroke-width: 1; stroke-dasharray: 4 5; }
.line-chart .trend-area { fill: var(--accent-soft); stroke: none; }
.line-chart .trend-line { stroke: var(--accent); stroke-width: 2.4; }
.line-chart circle { fill: var(--accent); stroke: var(--card); stroke-width: 2; }
.line-chart .inner-dot { fill: var(--card); stroke: none; }
.chart-dates { display: flex; justify-content: space-between; color: var(--tertiary); font-size: 8px; }
.feedback-demo { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 24px; }
.feedback-actions { display: grid; gap: 8px; }
.toast-specimen { display: flex; align-items: center; gap: 10px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 19px; background: var(--card-raised); }
.toast-specimen > svg { width: 17px; height: 17px; color: var(--accent-deep); }
.toast-specimen > span { flex: 1; font-size: 11px; }
.toast-specimen > small { color: var(--tertiary); font-size: 8px; }
.state-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 14px; }
.state-grid > div { padding: 17px; border: 1px solid var(--line); border-radius: 16px; }
.state-grid strong { font-size: 11px; }
.state-grid p { margin: 5px 0 0; color: var(--tertiary); font-size: 9px; line-height: 1.7; }
.navigation-demo { display: grid; place-items: center; min-height: 260px; }
.nav-demo-copy { text-align: center; }
.nav-demo-copy small { color: var(--tertiary); font-size: 9px; }
.nav-demo-copy strong { display: block; margin-top: 4px; font-size: 28px; letter-spacing: -1px; }
.nav-demo-copy p { margin: 7px 0 24px; color: var(--secondary); font-size: 10px; }
.floating-tabs { width: min(100%, 390px); display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; padding: 6px; border: 1px solid var(--line); border-radius: 999px; background: var(--canvas); }
.floating-tabs button { min-height: 54px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; border-radius: 999px; background: transparent; color: var(--tertiary); font-size: 8px; transition: background 240ms ease-out, color 240ms ease-out, transform 170ms ease-out; }
.floating-tabs button:active { transform: scale(.97); }
.floating-tabs button svg { width: 17px; height: 17px; }
.floating-tabs button.selected { background: var(--card-raised); color: var(--accent-deep); }
.accessibility-list { border: 1px solid var(--line); border-radius: 24px; overflow: hidden; }
.accessibility-list > div { display: grid; grid-template-columns: 36px 1fr; gap: 14px; padding: 20px; background: var(--card); }
.accessibility-list > div + div { border-top: 1px solid var(--line); }
.accessibility-list > div > span { color: var(--accent-deep); font-size: 9px; }
.accessibility-list h4 { margin: 0; font-size: 12px; }
.accessibility-list p { margin: 5px 0 0; color: var(--secondary); font-size: 10px; line-height: 1.7; }
.focus-demo { width: 100%; min-height: 50px; display: flex; justify-content: space-between; align-items: center; margin-top: 12px; padding: 0 20px; border: 1px solid var(--line); border-radius: 16px; background: transparent; color: var(--secondary); font-size: 11px; }
.focus-demo:hover { color: var(--ink); background: var(--hover); }
.focus-demo svg { width: 16px; height: 16px; }
.code-card { border: 1px solid var(--line); border-radius: 22px; background: var(--code); overflow: hidden; }
.code-header { height: 46px; display: flex; align-items: center; justify-content: space-between; padding: 0 16px; border-bottom: 1px solid var(--line); }
.code-header > span { display: flex; align-items: center; gap: 8px; color: var(--secondary); font-size: 9px; }
.code-header > span i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.code-header button { display: flex; align-items: center; gap: 6px; padding: 7px 9px; border-radius: 8px; background: transparent; color: var(--secondary); font-size: 9px; }
.code-header button:hover { background: var(--hover); color: var(--ink); }
.code-header svg { width: 13px; height: 13px; }
.code-card pre { margin: 0; padding: 24px; overflow-x: auto; color: var(--accent-deep); font: 11px/1.8 ui-monospace, SFMono-Regular, Consolas, monospace; tab-size: 2; }
.resource-actions { display: flex; align-items: center; gap: 24px; margin-top: 20px; }
.site-footer { margin-top: 84px; padding: 38px 0 32px; border-top: 1px solid var(--line); }
.site-footer > p { margin: 14px 0 32px; color: var(--secondary); font-size: 12px; }
.site-footer > div { display: flex; justify-content: space-between; color: var(--tertiary); font-size: 9px; }
.site-footer > div a:hover { color: var(--ink); }

dialog { color: var(--ink); font-family: var(--font); }
dialog::backdrop { background: rgba(0, 0, 0, .72); }
dialog[open] { animation: dialog-in 220ms ease-out; }
.search-dialog, .confirm-dialog { padding: 24px; border: 1px solid var(--line-strong); border-radius: 30px; background: var(--card-solid); }
.search-dialog { width: min(calc(100% - 32px), 560px); margin-top: 12vh; vertical-align: top; }
.dialog-topline { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.dialog-topline h2 { margin: 0; font-size: 19px; letter-spacing: -.4px; }
.dialog-topline .icon-button { width: 36px; height: 36px; }
.search-input-wrap { height: 52px; display: flex; align-items: center; gap: 10px; padding: 0 15px; border: 1px solid var(--accent); border-radius: 16px; background: var(--field); }
.search-input-wrap svg { color: var(--accent-deep); }
.search-input-wrap input { width: 100%; border: 0; outline: 0; background: transparent; color: var(--ink); font-size: 14px; }
.search-input-wrap input::placeholder { color: var(--tertiary); }
.search-results { max-height: 330px; display: grid; gap: 4px; margin-top: 14px; padding-right: 6px; overflow-y: auto; scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
.search-results::-webkit-scrollbar { width: 5px; }
.search-results::-webkit-scrollbar-track { background: transparent; }
.search-results::-webkit-scrollbar-thumb { border-radius: 999px; background: var(--line-strong); }
.search-results a { display: flex; align-items: center; justify-content: space-between; padding: 11px 12px; border-radius: 10px; color: var(--secondary); font-size: 12px; }
.search-results a:hover, .search-results a:focus { background: var(--hover); color: var(--ink); }
.search-results a small { color: var(--tertiary); font-size: 9px; }
.search-results .no-results { padding: 24px 12px; text-align: center; color: var(--tertiary); font-size: 12px; }
.search-hint { margin: 14px 2px 0; color: var(--tertiary); font-size: 9px; }
.confirm-dialog { width: min(calc(100% - 32px), 370px); text-align: center; border-radius: 36px; }
.dialog-symbol { width: 48px; height: 48px; display: grid; place-items: center; margin: 0 auto 18px; border-radius: 15px; background: var(--warm-soft); color: var(--danger); }
.confirm-dialog h2 { margin: 0; font-size: 20px; letter-spacing: -.5px; }
.confirm-dialog > p { margin: 12px 0 24px; color: var(--secondary); font-size: 12px; line-height: 1.8; }
.dialog-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.dialog-actions .button { min-height: 48px; padding: 0 12px; font-size: 11px; }
.toast { position: fixed; z-index: 300; top: calc(var(--header-height) + 16px); left: 50%; max-width: calc(100% - 32px); display: flex; align-items: center; gap: 10px; padding: 13px 18px; border: 1px solid var(--line-strong); border-radius: 18px; background: var(--card-raised); color: var(--ink); font-size: 12px; opacity: 0; pointer-events: none; transform: translate(-50%, -10px); transition: opacity 200ms ease-out, transform 200ms ease-out; }
.toast.visible { opacity: 1; transform: translate(-50%, 0); }
.toast svg { width: 17px; height: 17px; color: var(--accent-deep); }
@keyframes dialog-in { from { opacity: 0; transform: scale(.97); } to { opacity: 1; transform: scale(1); } }

.footer-title { font-size: 16px; font-weight: 600; letter-spacing: -.4px; }
.accent-presets { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; margin-top: 16px; }
.accent-preset { min-width: 0; padding: 15px; text-align: left; border: 1px solid var(--line); border-radius: 17px; background: var(--card); transition: border-color 170ms ease-out, transform 170ms ease-out; }
.accent-preset:hover { border-color: var(--line-strong); }
.accent-preset:active { transform: scale(.97); }
.accent-preset.selected { border-color: var(--accent); }
.accent-preset > span { display: flex; margin-bottom: 12px; }
.accent-preset i { width: 24px; height: 24px; border: 2px solid var(--card); border-radius: 50%; }
.accent-preset i + i { margin-left: -7px; }
.accent-preset strong, .accent-preset small { display: block; }
.accent-preset strong { font-size: 11px; }
.accent-preset small { margin-top: 3px; color: var(--tertiary); font-size: 8px; }
.preset-intro { margin-top: -6px; }
.code-example { margin-top: 16px; border: 1px solid var(--line); border-radius: 17px; background: var(--code); overflow: hidden; }
.code-example > summary { min-height: 46px; display: flex; align-items: center; justify-content: space-between; padding: 0 16px; color: var(--secondary); font-size: 10px; cursor: pointer; list-style: none; }
.code-example > summary::-webkit-details-marker { display: none; }
.code-example > summary:hover { color: var(--ink); background: var(--hover); }
.code-example > summary svg { width: 14px; height: 14px; transition: transform 170ms ease-out; }
.code-example[open] > summary { border-bottom: 1px solid var(--line); color: var(--ink); }
.code-example[open] > summary svg { transform: rotate(90deg); }
.code-example-body { position: relative; }
.code-example pre { max-height: 380px; margin: 0; padding: 22px 18px; overflow: auto; color: var(--accent-deep); font: 10px/1.8 ui-monospace, SFMono-Regular, Consolas, monospace; scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
.code-copy { position: absolute; z-index: 1; top: 10px; right: 10px; padding: 6px 9px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); color: var(--secondary); font-size: 9px; }
.code-copy:hover { color: var(--ink); border-color: var(--line-strong); }
.code-tabs { display: flex; gap: 3px; padding: 8px 96px 8px 10px; border-bottom: 1px solid var(--line); overflow-x: auto; }
.code-tabs button { min-height: 30px; padding: 0 10px; border-radius: 8px; background: transparent; color: var(--tertiary); font-size: 9px; white-space: nowrap; }
.code-tabs button:hover { background: var(--hover); color: var(--ink); }
.code-tabs button.selected { background: var(--accent-soft); color: var(--accent-deep); }
.code-example pre[hidden] { display: none; }
.button-outline { border-color: var(--line-strong); background: transparent; color: var(--ink); }
.button-outline:hover { background: var(--hover); }
.button-glass { border-color: var(--line); background: var(--field); color: var(--accent-deep); }
.button-small { min-height: 44px; padding: 0 16px; font-size: 11px; }
.button-large { min-height: 56px; padding: 0 24px; }
.button-icon { width: 48px; min-width: 48px; padding: 0; border-radius: 50%; }
.button:disabled { cursor: not-allowed; }
.demo-divider { height: 1px; margin: 24px 0; background: var(--line); }
.setting-row { position: relative; min-height: 66px; display: flex; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; }
.setting-row + .setting-row { border-top: 1px solid var(--line); }
.setting-row > span { min-width: 0; }
.setting-row strong, .setting-row small { display: block; }
.setting-row strong { font-size: 12px; }
.setting-row small { margin-top: 4px; color: var(--tertiary); font-size: 9px; }
.switch-input { position: absolute; z-index: 1; right: 0; width: 52px; height: 44px; margin: 0; opacity: 0; cursor: pointer; }
.switch-track { width: 48px; height: 28px; flex: 0 0 auto; padding: 3px; border: 1px solid var(--line); border-radius: 999px; background: var(--card-raised); transition: background 200ms ease-out, border-color 200ms ease-out; }
.switch-track::after { content: ""; display: block; width: 20px; height: 20px; border-radius: 50%; background: var(--surface); transition: transform 200ms ease-out, background 200ms ease-out; }
.switch-input:checked + .switch-track { border-color: var(--accent); background: var(--accent); }
.switch-input:checked + .switch-track::after { background: #fff; transform: translateX(20px); }
.switch-input:focus-visible + .switch-track { outline: 2px solid var(--accent-deep); outline-offset: 3px; }
.check-grid { display: flex; flex-wrap: wrap; gap: 12px 24px; }
.check-label, .radio-group label { position: relative; min-height: 44px; display: inline-flex; align-items: center; gap: 9px; color: var(--secondary); font-size: 11px; cursor: pointer; }
.check-label input, .radio-group input { position: absolute; width: 22px; height: 22px; margin: 0; opacity: 0; }
.check-label > i { width: 20px; height: 20px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 6px; background: var(--field); }
.check-label > i::after { content: ""; width: 8px; height: 4px; border-left: 2px solid var(--canvas); border-bottom: 2px solid var(--canvas); transform: translateY(-1px) rotate(-45deg); opacity: 0; }
.check-label input:checked + i { border-color: var(--accent); background: var(--accent); }
.check-label input:checked + i::after { opacity: 1; }
.check-label input:focus-visible + i, .radio-group input:focus-visible + i { outline: 2px solid var(--accent-deep); outline-offset: 3px; }
.radio-group { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 12px; }
.radio-group label > i { width: 20px; height: 20px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; }
.radio-group label > i::after { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); transform: scale(0); transition: transform 170ms ease-out; }
.radio-group input:checked + i { border-color: var(--accent); }
.radio-group input:checked + i::after { transform: scale(1); }
.radio-group input:disabled + i, .radio-group input:disabled ~ span { opacity: .35; cursor: not-allowed; }
.input-variant-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 12px; margin-top: 16px; }
.field-block { min-width: 0; display: block; }
.field-wide { grid-column: 1 / -1; }
.input-transparent { background: transparent; }
.input-disabled { opacity: .45; }
.input-error { border-color: var(--warning); }
.input-error:focus-within { border-color: var(--warning); outline-color: var(--warning); }
.error-text { display: block; margin-top: 6px; color: var(--warning); font-size: 9px; }
.text-area { width: 100%; min-height: 96px; resize: vertical; padding: 14px 16px; border: 1px solid var(--line); border-radius: 17px; outline: 0; background: var(--field); color: var(--ink); font: 12px/1.7 var(--font); }
.text-area:focus { border-color: var(--accent-deep); }
.text-area::placeholder, .input-wrap input::placeholder { color: var(--tertiary); }
.search-field button { width: 32px; height: 32px; display: grid; place-items: center; padding: 0; border-radius: 50%; background: transparent; color: var(--tertiary); }
.search-field button:hover { background: var(--hover); color: var(--ink); }
.search-field button svg { width: 14px; height: 14px; }
.search-suggestion { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; margin-top: 10px; }
.search-suggestion > span { margin-right: 3px; color: var(--tertiary); font-size: 9px; }
.search-suggestion button { padding: 5px 9px; border-radius: 8px; background: var(--field); color: var(--secondary); font-size: 9px; }
.search-suggestion button:hover { background: var(--hover); color: var(--ink); }
.slider-label { display: flex; align-items: center; justify-content: space-between; font-size: 11px; font-weight: 600; }
.slider-label output { color: var(--accent-deep); font-size: 12px; font-variant-numeric: tabular-nums; }
.range-input { width: 100%; height: 24px; margin: 12px 0 0; accent-color: var(--accent); cursor: pointer; }
.range-warm { accent-color: var(--warm); }
.range-limits { display: flex; justify-content: space-between; color: var(--tertiary); font-size: 8px; }
.second-label { display: flex; justify-content: space-between; margin-top: 20px; }
.second-label output { color: var(--warm); }
.surface-variant-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; margin-top: 14px; }
.surface-sample { padding: 18px; border: 1px solid var(--line); border-radius: 18px; background: var(--card); }
.surface-sample span, .surface-sample strong { display: block; }
.surface-sample span { color: var(--tertiary); font-size: 9px; }
.surface-sample strong { margin-top: 7px; font-size: 10px; }
.surface-outline { background: transparent; }
.surface-flat { border-color: transparent; }
.badge-showcase { display: flex; flex-wrap: wrap; gap: 8px; }
.dd-badge { display: inline-flex; align-items: center; gap: 5px; padding: 5px 9px; border: 1px solid transparent; border-radius: 9px; background: var(--field); color: var(--secondary); font-size: 9px; font-weight: 600; }
.dd-badge.success { background: var(--accent-soft); color: var(--accent-deep); }
.dd-badge.warm { background: var(--warm-soft); color: var(--warm); }
.dd-badge.danger { background: var(--warm-soft); color: var(--danger); }
.dd-badge.outline { border-color: var(--line-strong); background: transparent; }
.dd-badge.glass { background: var(--field); color: var(--accent-deep); }
.dd-badge.dot::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.avatar-showcase { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.avatar { width: 40px; height: 40px; display: inline-grid; place-items: center; flex: 0 0 auto; border: 1px solid var(--line); border-radius: 50%; background: var(--accent-soft); color: var(--accent-deep); font-size: 12px; font-weight: 600; }
.avatar-small { width: 32px; height: 32px; font-size: 10px; }
.avatar-large { width: 56px; height: 56px; font-size: 16px; }
.avatar-warm { background: var(--warm-soft); color: var(--warm); }
.avatar-cool { background: var(--cool-soft); color: var(--cool); }
.avatar-image { background: var(--card-raised); }
.avatar-image svg { width: 18px; height: 18px; }
.avatar-stack { display: flex; padding-left: 12px; }
.avatar-stack .avatar { margin-left: -10px; border: 2px solid var(--card); }
.avatar-more { background: var(--card-raised); color: var(--secondary); font-size: 9px; }
.progress-demo { display: grid; gap: 22px; }
.progress-example > div:first-child { display: flex; justify-content: space-between; align-items: center; margin-bottom: 9px; font-size: 10px; }
.progress-example > div:first-child strong { color: var(--secondary); font-variant-numeric: tabular-nums; }
.progress-example > small { display: block; margin-top: 7px; color: var(--tertiary); font-size: 8px; }
.demo-progress { height: 6px; border-radius: 3px; background: var(--field); overflow: hidden; }
.demo-progress > i { display: block; height: 100%; border-radius: inherit; background: var(--accent); }
.demo-progress.over > i { background: var(--warning); }
.demo-progress.indeterminate > i { width: 35%; animation: indeterminate 1.4s ease-in-out infinite; }
.loading-row { display: flex; align-items: center; gap: 22px; }
.spinner { width: 24px; height: 24px; flex: 0 0 auto; border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin 800ms linear infinite; }
.skeleton-sample { flex: 1; display: grid; gap: 8px; }
.skeleton-sample i { height: 9px; border-radius: 5px; background: var(--field); animation: skeleton 1.6s ease-in-out infinite alternate; }
.skeleton-sample i:nth-child(2) { width: 76%; }
.skeleton-sample i:nth-child(3) { width: 48%; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 16px; color: var(--tertiary); font-size: 9px; }
.chart-legend span { display: flex; align-items: center; gap: 6px; }
.chart-legend i { width: 14px; height: 3px; border-radius: 3px; background: var(--accent); }
.chart-legend i.muted { opacity: .35; }
.chart-legend i.dash { height: 1px; border-top: 1px dashed var(--secondary); background: transparent; }
.table-demo { padding: 0; overflow: hidden; }
.table-toolbar { min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 16px; border-bottom: 1px solid var(--line); }
.table-toolbar > span { font-size: 11px; font-weight: 600; }
.table-toolbar .button { min-height: 36px; }
.data-table-wrap { overflow-x: auto; }
.data-table-wrap, .token-table-wrap { scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
.data-table-wrap::-webkit-scrollbar, .token-table-wrap::-webkit-scrollbar { height: 6px; }
.data-table-wrap::-webkit-scrollbar-track, .token-table-wrap::-webkit-scrollbar-track { background: transparent; }
.data-table-wrap::-webkit-scrollbar-thumb, .token-table-wrap::-webkit-scrollbar-thumb { border-radius: 999px; background: var(--line-strong); }
.data-table { width: 100%; min-width: 480px; border-collapse: collapse; text-align: left; }
.data-table th, .data-table td { padding: 13px 16px; border-bottom: 1px solid var(--line); font-size: 10px; white-space: nowrap; }
.data-table tr:last-child th, .data-table tr:last-child td { border-bottom: 0; }
.data-table thead th { background: var(--field); color: var(--tertiary); font-size: 8px; font-weight: 500; }
.data-table tbody th { font-weight: 500; }
.data-table td:nth-child(2), .data-table td:nth-child(3) { color: var(--secondary); font-variant-numeric: tabular-nums; }
.data-table tbody tr:hover { background: var(--hover); }
.alert-stack { display: grid; gap: 9px; margin-bottom: 14px; }
.dd-alert { display: flex; align-items: flex-start; gap: 11px; padding: 15px 16px; border: 1px solid var(--line); border-radius: 17px; background: var(--card); }
.dd-alert > svg { width: 17px; height: 17px; margin-top: 1px; color: var(--secondary); }
.dd-alert > div { flex: 1; }
.dd-alert strong { display: block; font-size: 11px; }
.dd-alert p { margin: 4px 0 0; color: var(--secondary); font-size: 9px; }
.dd-alert > button { width: 28px; height: 28px; display: grid; place-items: center; padding: 0; border-radius: 50%; background: transparent; color: var(--tertiary); }
.dd-alert > button:hover { background: var(--hover); color: var(--ink); }
.dd-alert > button svg { width: 13px; height: 13px; }
.dd-alert.success { border-color: var(--accent-soft); background: var(--accent-soft); }
.dd-alert.success > svg { color: var(--accent-deep); }
.dd-alert.warning { border-color: var(--warm-soft); background: var(--warm-soft); }
.dd-alert.warning > svg { color: var(--warm); }
.tooltip-showcase { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
[data-tooltip] { position: relative; }
[data-tooltip]::after { content: attr(data-tooltip); position: absolute; z-index: 5; left: 50%; bottom: calc(100% + 9px); padding: 7px 10px; border: 1px solid var(--line); border-radius: 9px; background: var(--card-raised); color: var(--ink); font-size: 9px; font-weight: 400; white-space: nowrap; opacity: 0; pointer-events: none; transform: translate(-50%, 4px); transition: opacity 170ms ease-out, transform 170ms ease-out; }
[data-tooltip]:hover::after, [data-tooltip]:focus-visible::after { opacity: 1; transform: translate(-50%, 0); }
.page-tabs { display: flex; gap: 24px; margin-top: 16px; border-bottom: 1px solid var(--line); }
.page-tabs button { position: relative; min-height: 44px; padding: 0 2px; background: transparent; color: var(--tertiary); font-size: 11px; }
.page-tabs button.selected { color: var(--ink); }
.page-tabs button.selected::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--accent); }
.pagination { display: flex; align-items: center; justify-content: center; gap: 6px; margin-top: 20px; }
.pagination button { width: 40px; height: 40px; display: grid; place-items: center; padding: 0; border-radius: 50%; background: transparent; color: var(--secondary); font-size: 10px; }
.pagination button:hover { background: var(--hover); color: var(--ink); }
.pagination button.selected { background: var(--accent-soft); color: var(--accent-deep); }
.pagination button svg { width: 14px; height: 14px; }
.pagination button:first-child svg { transform: rotate(180deg); }
.pagination span { color: var(--tertiary); }
.bottom-sheet { position: fixed; inset: auto 0 0; width: min(100%, 480px); max-width: 100%; margin: auto auto 0; padding: 12px 22px calc(24px + env(safe-area-inset-bottom)); border: 1px solid var(--line-strong); border-bottom: 0; border-radius: 36px 36px 0 0; background: var(--card-solid); }
.sheet-handle { display: block; width: 38px; height: 4px; margin: 0 auto 18px; border-radius: 4px; background: var(--line-strong); }
.bottom-sheet .dialog-topline { align-items: flex-start; }
.bottom-sheet .dialog-topline h2 { font-size: 20px; }
.bottom-sheet .dialog-topline p { margin: 5px 0 0; color: var(--tertiary); font-size: 10px; }
.sheet-options { border: 1px solid var(--line); border-radius: 20px; overflow: hidden; }
.sheet-options button { width: 100%; min-height: 64px; display: flex; align-items: center; gap: 12px; padding: 10px 14px; background: transparent; text-align: left; }
.sheet-options button:hover { background: var(--hover); }
.sheet-options button + button { border-top: 1px solid var(--line); }
.sheet-options strong { flex: 1; font-size: 12px; }
.sheet-options button > svg { width: 14px; height: 14px; color: var(--tertiary); }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes indeterminate { from { transform: translateX(-100%); } to { transform: translateX(300%); } }
@keyframes skeleton { to { opacity: .4; } }
@keyframes sheet-in { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 1279px) {
  .page-shell { grid-template-columns: 200px minmax(0, 1fr); max-width: 1180px; }
  .header-inner { gap: 28px; }
  .brand { flex-basis: 200px; }
  .top-nav { gap: 22px; }
}
@media (max-width: 1050px) {
  .top-nav { display: none; }
  .hero h1 { font-size: clamp(46px, 7vw, 62px); }
}
@media (max-width: 820px) {
  :root { --header-height: 62px; }
  .header-inner { padding: 0 20px; gap: 12px; }
  .mobile-menu { display: inline-grid; width: 38px; height: 38px; border: 0; }
  .brand { flex: 0 0 auto; font-size: 16px; }
  .header-actions { gap: 8px; }
  .search-trigger { min-width: 38px; width: 38px; height: 38px; padding: 0; justify-content: center; border-radius: 50%; }
  .search-trigger span, .search-trigger kbd { display: none; }
  .header-download { display: none; }
  .page-shell { display: block; max-width: 820px; padding: 0 24px; }
  .sidebar { position: fixed; z-index: 160; top: 0; left: 0; width: 270px; height: 100dvh; padding: 0 20px; background: var(--card-solid); border-right: 1px solid var(--line); transform: translateX(-105%); transition: transform 240ms ease-out; }
  .sidebar.open { transform: translateX(0); }
  .sidebar-inner { padding-top: 34px; }
  .sidebar-scrim { position: fixed; z-index: 150; inset: 0; width: 100%; height: 100%; background: rgba(0,0,0,.65); opacity: 0; pointer-events: none; display: block; transition: opacity 240ms ease-out; }
  .sidebar-scrim.visible { opacity: 1; pointer-events: auto; }
  main { max-width: 760px; margin: 0 auto; }
  .hero { padding-top: 50px; }
}
@media (max-width: 600px) {
  .header-inner { padding: 0 16px; }
  .brand { font-size: 15px; }
  .header-actions .icon-button { width: 38px; height: 38px; }
  .page-shell { padding: 0 20px; }
  .hero { padding: 52px 0 46px; }
  .hero h1 { font-size: clamp(40px, 11.5vw, 52px); letter-spacing: -2px; }
  .hero h1 span { display: block; }
  .hero-actions { gap: 14px 18px; }
  .hero-actions .text-link { margin-left: auto; }
  .doc-section { padding-top: 64px; }
  .section-header { margin-bottom: 30px; }
  .section-header h2 { font-size: 34px; letter-spacing: -1.3px; }
  .section-header > p:last-child { font-size: 12px; }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-card { min-height: 0; }
  .principle-card > span { margin-bottom: 24px; }
  .guideline-pair, .theme-palettes, .swatch-grid, .chart-grid, .feedback-demo { grid-template-columns: 1fr; }
  .doc-article { padding: 48px 0; }
  .article-heading { grid-template-columns: 34px 1fr; gap: 6px; }
  .article-heading h3 { font-size: 23px; }
  .article-heading p { font-size: 12px; }
  .palette-canvas { padding: 20px; }
  .swatch { grid-template-columns: 34px 1fr auto; }
  .type-display { padding: 25px; }
  .type-display > strong { letter-spacing: -3px; }
  .type-display small { margin-left: 7px; }
  .token-table th, .token-table td { padding-left: 12px; padding-right: 12px; }
  .rule-list { grid-template-columns: 1fr; gap: 14px; }
  .measurement-grid { grid-template-columns: 1fr 1fr; }
  .measurement-grid > div:nth-child(3) { border-top: 1px solid var(--line); }
  .radius-grid { grid-template-columns: 1fr 1fr; }
  .motion-demo { align-items: flex-start; flex-direction: column; gap: 20px; }
  .motion-readout { width: 100%; padding: 18px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .component-demo { padding: 18px; border-radius: 22px; }
  .button-showcase { align-items: stretch; flex-direction: column; }
  .button-showcase .button { width: 100%; }
  .button-showcase .button-quiet { width: auto; align-self: flex-start; }
  .anatomy-grid > div { padding: 13px 10px; text-align: center; }
  .anatomy-grid span, .anatomy-grid strong { display: block; margin: 0; }
  .anatomy-grid strong { margin-top: 4px; }
  .segmented button { font-size: 10px; }
  .choice-row button { padding: 0 13px; }
  .record-row { gap: 9px; padding-left: 12px; padding-right: 12px; }
  .record-row + .record-row::before { left: 56px; }
  .record-row .meal-icon { width: 34px; height: 34px; }
  .record-value { font-size: 12px; }
  .chart-card { padding: 20px; }
  .state-grid { grid-template-columns: 1fr; }
  .resource-actions { align-items: flex-start; flex-direction: column; gap: 18px; }
  .accent-presets { grid-template-columns: 1fr 1fr; }
  .input-variant-grid, .surface-variant-grid { grid-template-columns: 1fr; }
  .field-wide { grid-column: auto; }
  .code-example pre { font-size: 9px; }
  .tooltip-showcase { gap: 8px; }
  .page-tabs { gap: 18px; }
  .pagination { gap: 2px; }
  .pagination button { width: 36px; height: 36px; }
  .site-footer { margin-top: 56px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}