/* ============================================================
   Mozhi Docs — Material Design 3 design system
   Tokens, typography, elevation, components.
   Light/dark via html[data-theme]; system default.
   ============================================================ */

/* ---------- MD3 color tokens ---------- */
html[data-theme="light"] {
  --md-primary: #415f91;
  --md-on-primary: #ffffff;
  --md-primary-container: #d8e2ff;
  --md-on-primary-container: #001b3f;
  --md-secondary: #565f71;
  --md-on-secondary: #ffffff;
  --md-secondary-container: #dae2f9;
  --md-on-secondary-container: #131c2b;
  --md-tertiary: #705575;
  --md-on-tertiary: #ffffff;
  --md-tertiary-container: #fad8fd;
  --md-on-tertiary-container: #29132e;
  --md-error: #ba1a1a;
  --md-on-error: #ffffff;
  --md-error-container: #ffdad6;
  --md-on-error-container: #410002;
  --md-surface: #f9f9ff;
  --md-on-surface: #191c20;
  --md-surface-variant: #e0e2ec;
  --md-on-surface-variant: #44474e;
  --md-surface-dim: #d9d9e2;
  --md-surface-bright: #f9f9ff;
  --md-surface-low: #f3f3fa;
  --md-surface-container: #ededf4;
  --md-surface-high: #e7e8ee;
  --md-surface-highest: #e2e2e9;
  --md-outline: #74777f;
  --md-outline-variant: #c4c6d0;
  --md-inverse-surface: #2e3036;
  --md-inverse-on-surface: #f0f0f7;
  --md-shadow: rgba(0, 0, 0, 0.28);
  --md-success: #1f6d3a;
  --md-success-container: #b6f2c4;
  --md-warning: #7a5900;
  --md-warning-container: #ffdf9b;
  --md-scrim: rgba(0, 0, 0, 0.42);
}

html[data-theme="dark"] {
  --md-primary: #aac7ff;
  --md-on-primary: #0a305f;
  --md-primary-container: #284777;
  --md-on-primary-container: #d8e2ff;
  --md-secondary: #bec6dc;
  --md-on-secondary: #283141;
  --md-secondary-container: #3e4759;
  --md-on-secondary-container: #dae2f9;
  --md-tertiary: #debcdf;
  --md-on-tertiary: #39283e;
  --md-tertiary-container: #513e56;
  --md-on-tertiary-container: #fad8fd;
  --md-error: #ffb4ab;
  --md-on-error: #690005;
  --md-error-container: #93000a;
  --md-on-error-container: #ffdad6;
  --md-surface: #111318;
  --md-on-surface: #e2e2e9;
  --md-surface-variant: #44474e;
  --md-on-surface-variant: #c4c6d0;
  --md-surface-dim: #111318;
  --md-surface-bright: #37393e;
  --md-surface-low: #191c20;
  --md-surface-container: #1d2024;
  --md-surface-high: #282a2f;
  --md-surface-highest: #33353a;
  --md-outline: #8e9099;
  --md-outline-variant: #44474e;
  --md-inverse-surface: #e2e2e9;
  --md-inverse-on-surface: #2e3036;
  --md-shadow: rgba(0, 0, 0, 0.6);
  --md-success: #8bd6a2;
  --md-success-container: #0d5127;
  --md-warning: #f2bf3f;
  --md-warning-container: #5c4300;
  --md-scrim: rgba(0, 0, 0, 0.55);
}

/* ---------- MD3 elevation ---------- */
html {
  --md-e1: 0 1px 2px 0 var(--md-shadow);
  --md-e2: 0 1px 2px 1px var(--md-shadow);
  --md-e3: 0 4px 8px 3px var(--md-shadow), 0 1px 3px 0 var(--md-shadow);
}

/* ---------- base ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Roboto", -apple-system, "Segoe UI", sans-serif;
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--md-primary-container); color: var(--md-on-primary-container); }

/* MD3 type scale */
h1 { font-size: 2.45rem; font-weight: 400; line-height: 1.18; letter-spacing: -0.5px; color: var(--md-on-surface); margin: 0 0 14px; }
h2 { font-size: 1.65rem; font-weight: 400; line-height: 1.3; color: var(--md-on-surface); margin: 44px 0 14px; padding-top: 20px; border-top: 1px solid var(--md-outline-variant); scroll-margin-top: 84px; }
h3 { font-size: 1.18rem; font-weight: 500; line-height: 1.4; color: var(--md-on-surface); margin: 30px 0 10px; scroll-margin-top: 84px; }
h4 { font-size: 0.98rem; font-weight: 500; color: var(--md-on-surface-variant); margin: 22px 0 8px; letter-spacing: 0.1px; }
p { margin: 0 0 14px; color: var(--md-on-surface-variant); }
strong { color: var(--md-on-surface); font-weight: 600; }
a { color: var(--md-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { margin: 0 0 16px 22px; color: var(--md-on-surface-variant); }
li { margin-bottom: 6px; }

hr { border: none; border-top: 1px solid var(--md-outline-variant); margin: 28px 0; }

/* ---------- Material Symbols ---------- */
.msym {
  font-family: "Material Symbols Outlined";
  font-weight: normal; font-style: normal;
  font-size: 24px; line-height: 1;
  letter-spacing: normal; text-transform: none;
  display: inline-block; white-space: nowrap;
  direction: ltr; -webkit-font-feature-settings: "liga";
  -webkit-font-smoothing: antialiased;
  font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
  user-select: none;
}
.msym.fill { font-variation-settings: "FILL" 1, "wght" 400, "GRAD" 0, "opsz" 24; }

/* ---------- top app bar ---------- */
.md-appbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 60;
  height: 64px;
  display: flex; align-items: center; gap: 6px;
  padding: 0 10px 0 6px;
  background: var(--md-surface);
  transition: background 0.25s, box-shadow 0.25s;
}
.md-appbar.scrolled {
  background: var(--md-surface-container);
  box-shadow: var(--md-e2);
}
.md-iconbtn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 50%;
  border: none; background: transparent; color: var(--md-on-surface-variant);
  cursor: pointer; position: relative; overflow: hidden; flex: none;
  transition: background 0.15s;
}
.md-iconbtn:hover { background: color-mix(in srgb, var(--md-on-surface) 8%, transparent); }
.md-iconbtn .msym { font-size: 22px; }
.md-menu-btn { display: none; }

.md-brand {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.22rem; font-weight: 500; color: var(--md-on-surface);
  text-decoration: none; margin-right: 8px; padding: 6px 10px 6px 6px; border-radius: 24px;
}
.md-brand:hover { text-decoration: none; background: color-mix(in srgb, var(--md-on-surface) 6%, transparent); }
.md-brand-badge {
  width: 34px; height: 34px; border-radius: 11px; flex: none;
  background: linear-gradient(135deg, var(--md-primary), var(--md-tertiary));
  color: var(--md-on-primary);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.05rem;
  box-shadow: var(--md-e1);
}
.md-appbar-spacer { flex: 1; }

.md-version-chip {
  font-size: 0.78rem; font-weight: 500; letter-spacing: 0.4px;
  color: var(--md-on-primary-container);
  background: var(--md-primary-container);
  border-radius: 999px; padding: 4px 12px;
  white-space: nowrap;
}

/* ---------- buttons ---------- */
.md-btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 42px; padding: 0 22px;
  border-radius: 999px; border: none;
  font-family: inherit; font-size: 0.9rem; font-weight: 500; letter-spacing: 0.2px;
  cursor: pointer; text-decoration: none;
  position: relative; overflow: hidden;
  transition: box-shadow 0.2s, background 0.2s, transform 0.1s;
}
.md-btn:hover { text-decoration: none; box-shadow: var(--md-e1); }
.md-btn:active { transform: scale(0.98); }
.md-btn .msym { font-size: 19px; }
.md-btn-filled { background: var(--md-primary); color: var(--md-on-primary); }
.md-btn-tonal { background: var(--md-secondary-container); color: var(--md-on-secondary-container); }
.md-btn-outlined { background: transparent; color: var(--md-primary); border: 1px solid var(--md-outline); }
.md-btn-text { background: transparent; color: var(--md-primary); padding: 0 14px; }

/* ---------- chips (filters) ---------- */
.md-chip {
  display: inline-flex; align-items: center; gap: 6px;
  height: 32px; padding: 0 14px;
  border-radius: 10px; border: 1px solid var(--md-outline-variant);
  background: transparent; color: var(--md-on-surface-variant);
  font-family: inherit; font-size: 0.82rem; font-weight: 500;
  cursor: pointer; user-select: none;
  transition: background 0.15s, border-color 0.15s;
}
.md-chip .msym { font-size: 17px; }
.md-chip:hover { background: color-mix(in srgb, var(--md-on-surface) 6%, transparent); }
.md-chip.selected {
  background: var(--md-secondary-container); color: var(--md-on-secondary-container);
  border-color: transparent;
}
.md-chip-static {
  display: inline-flex; align-items: center; gap: 5px;
  height: 26px; padding: 0 11px; border-radius: 8px;
  font-size: 0.74rem; font-weight: 500; letter-spacing: 0.3px;
  background: var(--md-surface-container-high); color: var(--md-on-surface-variant);
  cursor: default;
}
.md-chip-static .msym { font-size: 15px; }
.md-chip-static.assessed { background: var(--md-primary-container); color: var(--md-on-primary-container); }
.md-chip-static.green { background: var(--md-success-container); color: var(--md-success); }
.md-chip-static.amber { background: var(--md-warning-container); color: var(--md-warning); }
.md-chip-static.red { background: var(--md-error-container); color: var(--md-error); }

/* ---------- navigation drawer ---------- */
.md-drawer {
  position: fixed; top: 64px; bottom: 0; left: 0; z-index: 50;
  width: 288px;
  background: var(--md-surface-low);
  border-right: 1px solid var(--md-outline-variant);
  overflow-y: auto;
  padding: 14px 12px 40px;
  transition: transform 0.28s cubic-bezier(0.2, 0, 0, 1);
}
.md-drawer-section { margin-bottom: 20px; }
.md-drawer-heading {
  font-size: 0.72rem; font-weight: 600; letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--md-on-surface-variant);
  padding: 0 16px 8px;
}
.md-drawer a.md-nav-item,
.md-drawer-section > a {
  display: flex; align-items: center; gap: 12px;
  height: 44px; padding: 0 16px; margin: 1px 0;
  border-radius: 999px;
  color: var(--md-on-surface-variant);
  font-size: 0.885rem; font-weight: 500;
  text-decoration: none;
  position: relative; overflow: hidden;
  transition: background 0.15s;
}
.md-drawer a.md-nav-item:hover,
.md-drawer-section > a:hover { background: color-mix(in srgb, var(--md-on-surface) 7%, transparent); text-decoration: none; }
.md-drawer a.md-nav-item.active,
.md-drawer-section > a.active {
  background: var(--md-secondary-container); color: var(--md-on-secondary-container);
}
.md-drawer a.md-nav-item.active .msym,
.md-drawer-section > a.active .msym { font-variation-settings: "FILL" 1, "wght" 400, "GRAD" 0, "opsz" 24; }
.md-drawer a.md-nav-item .msym,
.md-drawer-section > a .msym { font-size: 20px; flex: none; }
.md-drawer a.md-nav-sub {
  display: block; padding: 5px 16px 5px 48px; margin: 0;
  border-radius: 8px;
  font-size: 0.815rem; color: var(--md-on-surface-variant);
}
.md-drawer a.md-nav-sub:hover { background: color-mix(in srgb, var(--md-on-surface) 6%, transparent); text-decoration: none; }

.md-scrim {
  position: fixed; inset: 0; z-index: 45;
  background: var(--md-scrim);
  opacity: 0; pointer-events: none;
  transition: opacity 0.28s;
}
body.drawer-open .md-scrim { opacity: 1; pointer-events: auto; }

/* ---------- layout ---------- */
.md-content {
  margin-left: 288px;
  padding: 88px 40px 80px;
  display: flex; justify-content: center;
}
.md-main-col { width: 100%; max-width: 920px; min-width: 0; }
@media (max-width: 1080px) {
  .md-content { margin-left: 0; padding: 84px 20px 64px; }
  .md-drawer { transform: translateX(-105%); box-shadow: var(--md-e3); }
  body.drawer-open .md-drawer { transform: translateX(0); }
  .md-menu-btn { display: inline-flex !important; }
}

/* ---------- cards ---------- */
.md-card {
  background: var(--md-surface-container-low);
  border-radius: 16px;
  padding: 22px;
  transition: box-shadow 0.2s, transform 0.2s, background 0.2s;
}
.md-card.elevated { box-shadow: var(--md-e1); background: var(--md-surface-container-low); }
.md-card.clickable { cursor: pointer; }
.md-card.clickable:hover { box-shadow: var(--md-e2); transform: translateY(-2px); background: var(--md-surface-container); }
.md-card-icon {
  width: 46px; height: 46px; border-radius: 13px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--md-primary-container); color: var(--md-on-primary-container);
  margin-bottom: 14px;
}
.md-card-icon .msym { font-size: 25px; }
.md-card-icon.tert { background: var(--md-tertiary-container); color: var(--md-on-tertiary-container); }
.md-card-icon.sec { background: var(--md-secondary-container); color: var(--md-on-secondary-container); }
.md-card-icon.green { background: var(--md-success-container); color: var(--md-success); }
.md-card-icon.amber { background: var(--md-warning-container); color: var(--md-warning); }
.md-card-icon.red { background: var(--md-error-container); color: var(--md-error); }
.md-card h3 { margin: 0 0 8px; }
.md-card p { margin-bottom: 10px; font-size: 0.9rem; }
.md-card .md-card-link { font-size: 0.87rem; font-weight: 500; display: inline-flex; align-items: center; gap: 4px; }
.md-card .md-card-link .msym { font-size: 17px; }

.md-grid { display: grid; gap: 14px; }
.md-grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.md-grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

/* ---------- hero ---------- */
.md-hero {
  padding: 34px 0 26px;
}
.md-hero-kicker {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 0.8rem; font-weight: 600; letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--md-primary);
  background: var(--md-primary-container);
  padding: 6px 14px; border-radius: 999px;
  margin-bottom: 20px;
}
.md-hero-kicker .msym { font-size: 16px; }
.md-hero h1 { font-size: 3.1rem; max-width: 720px; }
.md-hero h1 .accent {
  background: linear-gradient(100deg, var(--md-primary), var(--md-tertiary));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.md-hero p.lead { font-size: 1.12rem; max-width: 660px; color: var(--md-on-surface-variant); }
.md-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 10px; }
.md-hero-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }

/* ---------- code blocks ---------- */
.md-code {
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
  border-radius: 14px;
  margin: 18px 0;
  overflow: hidden;
}
.md-code-head {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 10px 9px 16px;
  border-bottom: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container-high);
}
.md-code-lang {
  font-size: 0.72rem; font-weight: 600; letter-spacing: 1px; text-transform: uppercase;
  color: var(--md-on-surface-variant);
}
.md-code-title { font-size: 0.78rem; color: var(--md-on-surface-variant); font-family: "Roboto Mono", monospace; }
.md-code-head .md-spacer { flex: 1; }
.md-code pre {
  margin: 0; padding: 16px 18px;
  overflow-x: auto;
  font-family: "Roboto Mono", "SF Mono", Consolas, monospace;
  font-size: 0.845rem; line-height: 1.62;
  color: var(--md-on-surface);
  tab-size: 4;
}
.md-code pre code { font-family: inherit; background: none; padding: 0; }

/* legacy inline code + pre (content pages) */
code {
  font-family: "Roboto Mono", "SF Mono", Consolas, monospace;
  font-size: 0.86em;
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
  border-radius: 6px;
  padding: 2px 6px;
}
pre {
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
  border-radius: 14px;
  padding: 16px 18px;
  overflow-x: auto;
  margin: 16px 0;
  font-size: 0.845rem; line-height: 1.6;
}
pre code { background: none; padding: 0; font-size: inherit; }

/* syntax tokens */
.tok-com { color: var(--md-on-surface-variant); font-style: italic; opacity: 0.82; }
.tok-str { color: var(--md-success); }
html[data-theme="dark"] .tok-str { color: #8bd6a2; }
.tok-num { color: var(--md-tertiary); }
html[data-theme="dark"] .tok-num { color: #debcdf; }
.tok-kw { color: var(--md-primary); font-weight: 500; }
.tok-bi { color: var(--md-warning); }
html[data-theme="dark"] .tok-bi { color: #f2bf3f; }
.tok-mod { color: var(--md-tertiary); font-weight: 500; }
html[data-theme="dark"] .tok-mod { color: #debcdf; }
.tok-punct { color: var(--md-on-surface-variant); }

/* copy button feedback */
.md-copy-ok { color: var(--md-success) !important; }

/* ---------- tables ---------- */
table {
  width: 100%; border-collapse: collapse;
  margin: 18px 0;
  font-size: 0.89rem;
  border-radius: 14px; overflow: hidden;
  border: 1px solid var(--md-outline-variant);
}
thead th {
  text-align: left; font-weight: 600; font-size: 0.8rem;
  letter-spacing: 0.4px; text-transform: uppercase;
  color: var(--md-on-surface-variant);
  background: var(--md-surface-container-high);
  padding: 11px 16px;
}
tbody td {
  padding: 11px 16px;
  border-top: 1px solid var(--md-outline-variant);
  color: var(--md-on-surface-variant);
  vertical-align: top;
}
tbody tr { background: var(--md-surface-low); }
tbody tr:nth-child(even) { background: var(--md-surface-container-low); }
tbody tr:hover { background: var(--md-surface-container-high); }
tbody td code { white-space: nowrap; }

/* ---------- callouts ---------- */
.md-callout {
  display: flex; gap: 14px;
  border-radius: 14px;
  padding: 16px 18px;
  margin: 18px 0;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}
.md-callout .msym { flex: none; margin-top: 2px; }
.md-callout p { color: inherit; margin: 0; }
.md-callout.tip { background: var(--md-success-container); color: var(--md-success); }
.md-callout.warn { background: var(--md-warning-container); color: var(--md-warning); }
.md-callout.danger { background: var(--md-error-container); color: var(--md-on-error-container); }

/* ---------- example gallery ---------- */
.md-example-card {
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
  border-radius: 16px;
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: box-shadow 0.2s, transform 0.2s;
}
.md-example-card:hover { box-shadow: var(--md-e2); transform: translateY(-2px); }
.md-example-head { padding: 18px 20px 12px; display: flex; gap: 14px; align-items: flex-start; }
.md-example-head h3 { margin: 0 0 3px; font-size: 1.02rem; }
.md-example-head p { margin: 0; font-size: 0.845rem; }
.md-example-tags { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 20px 14px; }
.md-example-actions {
  display: flex; gap: 4px; align-items: center;
  padding: 6px 10px;
  border-top: 1px solid var(--md-outline-variant);
  margin-top: auto;
}
.md-example-actions .md-spacer { flex: 1; }
.md-example-file {
  font-family: "Roboto Mono", monospace; font-size: 0.75rem;
  color: var(--md-on-surface-variant);
  padding: 0 8px;
}
.md-example-body { display: none; border-top: 1px solid var(--md-outline-variant); }
.md-example-card.open .md-example-body { display: block; }
.md-example-body .md-code { margin: 12px 14px; }

/* ---------- lists / steps ---------- */
.md-steps { counter-reset: step; margin: 20px 0; }
.md-step {
  display: flex; gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--md-outline-variant);
}
.md-step:last-child { border-bottom: none; }
.md-step-num {
  counter-increment: step;
  width: 34px; height: 34px; flex: none;
  border-radius: 50%;
  background: var(--md-primary-container); color: var(--md-on-primary-container);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 0.95rem;
}
.md-step-num::before { content: counter(step); }
.md-step h3 { margin: 2px 0 6px; }
.md-step p { margin-bottom: 8px; }

/* ---------- snackbar ---------- */
.md-snackbar {
  position: fixed; left: 50%; bottom: 24px; z-index: 90;
  transform: translate(-50%, 150%);
  background: var(--md-inverse-surface); color: var(--md-inverse-on-surface);
  border-radius: 8px; padding: 12px 18px;
  font-size: 0.86rem;
  box-shadow: var(--md-e3);
  display: flex; align-items: center; gap: 10px;
  transition: transform 0.3s cubic-bezier(0.2, 0, 0, 1);
}
.md-snackbar.show { transform: translate(-50%, 0); }
.md-snackbar .msym { font-size: 18px; }

/* ---------- misc content compat (legacy pages) ---------- */
.main h1:first-child { margin-top: 0; }
.feature-badge { display: inline-block; }
.badge-new {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 0.68rem; font-weight: 600; letter-spacing: 0.6px;
  background: var(--md-tertiary-container); color: var(--md-on-tertiary-container);
  padding: 3px 9px; border-radius: 999px;
  vertical-align: middle;
}
.md-footer {
  margin: 70px 0 0; padding: 22px 0 0;
  border-top: 1px solid var(--md-outline-variant);
  display: flex; flex-wrap: wrap; gap: 14px; align-items: center;
  color: var(--md-on-surface-variant); font-size: 0.82rem;
}
.md-footer .md-spacer { flex: 1; }
.md-footer a { color: var(--md-on-surface-variant); display: inline-flex; align-items: center; gap: 5px; }
.md-footer a:hover { color: var(--md-primary); }
.md-footer .msym { font-size: 16px; }

/* ripple */
.md-ripple-host { position: relative; overflow: hidden; }
.md-ripple {
  position: absolute; border-radius: 50%;
  background: currentColor; opacity: 0.14;
  transform: scale(0);
  animation: md-ripple 0.55s ease-out forwards;
  pointer-events: none;
}
@keyframes md-ripple {
  to { transform: scale(2.6); opacity: 0; }
}

/* scrollbars (webkit) */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--md-outline-variant); border-radius: 6px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: var(--md-outline); background-clip: content-box; border: 2px solid transparent; }
::-webkit-scrollbar-track { background: transparent; }

@media print {
  .md-appbar, .md-drawer, .md-scrim, .md-snackbar { display: none !important; }
  .md-content { margin-left: 0; padding: 0; }
}