/*
 * readm3.com
 *
 * Two palettes live here and they are deliberately separate. The page chrome
 * uses --page-* and never changes. The reader windows use --bg, --fg and the
 * role slots, which are generated from the real HQTUI themes at build time and
 * swapped by the theme buttons, exactly as `--theme` swaps them in a terminal.
 */

:root {
  --page-bg: #07090d;
  --page-panel: #0d1117;
  --page-line: #1c2430;
  --page-fg: #d7dee8;
  --page-dim: #8b97a8;
  --page-accent: #5fd7ff;
  --page-warm: #ffd75f;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter, Roboto, sans-serif;
  --measure: 1120px;
  color-scheme: dark;
}

[data-theme="dark"] {
  --bg: #05070a;
  --surface: #0a0e14;
  --fg: #c6d0db;
  --muted: #5a6b7d;
  --primary: #58a6ff;
  --secondary: #bd93f9;
  --accent: #56d4dd;
  --info: #56d4dd;
  --border: #243040;
  --title: #7ee2ff;
  --selection: #1d3a52;
  --selection-text: #e6f2ff;
}

[data-theme="dracula"] {
  --bg: #191a21;
  --surface: #21222c;
  --fg: #f8f8f2;
  --muted: #6272a4;
  --primary: #bd93f9;
  --secondary: #ff79c6;
  --accent: #8be9fd;
  --info: #8be9fd;
  --border: #44475a;
  --title: #ff79c6;
  --selection: #44475a;
  --selection-text: #f8f8f2;
}

[data-theme="nord"] {
  --bg: #2e3440;
  --surface: #333b4a;
  --fg: #e5e9f0;
  --muted: #7b88a1;
  --primary: #88c0d0;
  --secondary: #b48ead;
  --accent: #8fbcbb;
  --info: #81a1c1;
  --border: #434c5e;
  --title: #8fbcbb;
  --selection: #434c5e;
  --selection-text: #eceff4;
}

[data-theme="tokyo-night"] {
  --bg: #1a1b26;
  --surface: #1f2335;
  --fg: #c0caf5;
  --muted: #565f89;
  --primary: #7aa2f7;
  --secondary: #bb9af7;
  --accent: #7dcfff;
  --info: #7dcfff;
  --border: #2f3549;
  --title: #7dcfff;
  --selection: #283457;
  --selection-text: #c0caf5;
}

[data-theme="gruvbox"] {
  --bg: #1d2021;
  --surface: #282828;
  --fg: #ebdbb2;
  --muted: #928374;
  --primary: #83a598;
  --secondary: #d3869b;
  --accent: #8ec07c;
  --info: #83a598;
  --border: #3c3836;
  --title: #fabd2f;
  --selection: #3c3836;
  --selection-text: #fbf1c7;
}

[data-theme="matrix"] {
  --bg: #000000;
  --surface: #020a02;
  --fg: #9dff9d;
  --muted: #2f6b2f;
  --primary: #00ff41;
  --secondary: #00c853;
  --accent: #7cff7c;
  --info: #00e5b0;
  --border: #12401f;
  --title: #00ff41;
  --selection: #0d2f14;
  --selection-text: #c9ffc9;
}

[data-theme="monochrome"] {
  --bg: #000000;
  --surface: #0b0b0b;
  --fg: #d0d0d0;
  --muted: #6e6e6e;
  --primary: #ffffff;
  --secondary: #c0c0c0;
  --accent: #e0e0e0;
  --info: #a0a0a0;
  --border: #3a3a3a;
  --title: #ffffff;
  --selection: #303030;
  --selection-text: #ffffff;
}

[data-theme="high-contrast"] {
  --bg: #000000;
  --surface: #000000;
  --fg: #ffffff;
  --muted: #c0c0c0;
  --primary: #00ffff;
  --secondary: #ff00ff;
  --accent: #ffff00;
  --info: #00ffff;
  --border: #ffffff;
  --title: #ffffff;
  --selection: #ffffff;
  --selection-text: #000000;
}

[data-theme="light"] {
  --bg: #fbfcfd;
  --surface: #ffffff;
  --fg: #1c2530;
  --muted: #6b7a8c;
  --primary: #0b62d0;
  --secondary: #7c3aed;
  --accent: #0e7490;
  --info: #0e7490;
  --border: #d3dbe4;
  --title: #0b3d78;
  --selection: #d6e6fb;
  --selection-text: #0b2545;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--page-bg);
  color: var(--page-fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--page-accent); text-decoration-color: color-mix(in srgb, var(--page-accent) 40%, transparent); }
a:hover { text-decoration-thickness: 2px; }

code { font-family: var(--mono); font-size: 0.92em; }

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 10;
  background: var(--page-panel);
  padding: 0.5rem 0.9rem;
  border-radius: 6px;
}

/* --------------------------------------------------------------- chrome -- */

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--measure);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
}

.brand {
  font-family: var(--mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--page-fg);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.brand::before { content: "▍"; color: var(--page-accent); margin-right: 0.35rem; }

.top nav { display: flex; gap: 1.25rem; font-size: 0.93rem; }
.top nav a { color: var(--page-dim); text-decoration: none; }
.top nav a:hover { color: var(--page-fg); }

main { max-width: var(--measure); margin: 0 auto; padding: 0 1.5rem 4rem; }

/* ----------------------------------------------------------------- hero -- */

.hero { padding: 3.5rem 0 3rem; max-width: 46rem; }
.hero-tight { padding-bottom: 1.5rem; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--page-accent);
  margin: 0 0 1rem;
}

.hero h1 {
  font-size: clamp(2.1rem, 5.5vw, 3.3rem);
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin: 0 0 1.25rem;
  font-weight: 650;
}

.lede { font-size: 1.12rem; color: var(--page-dim); margin: 0 0 2rem; }
.lede code { color: var(--page-fg); }

.cta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.9rem; }

.install {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--page-panel);
  border: 1px solid var(--page-line);
  border-radius: 8px;
  padding: 0.6rem 0.6rem 0.6rem 1rem;
}
.install code { color: var(--page-fg); white-space: nowrap; }
.install code::before { content: "$ "; color: var(--page-dim); }

.install button,
.ghost {
  font: inherit;
  font-size: 0.88rem;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid var(--page-line);
  padding: 0.35rem 0.8rem;
  background: transparent;
  color: var(--page-dim);
  text-decoration: none;
  transition: color 0.12s, border-color 0.12s;
}
.install button:hover, .ghost:hover { color: var(--page-fg); border-color: var(--page-dim); }
.ghost { padding: 0.62rem 1.1rem; }

.sub { color: var(--page-dim); font-size: 0.92rem; margin: 1.25rem 0 0; }
.sub code { color: var(--page-fg); }

/* -------------------------------------------------------------- section -- */

.section { padding: 3rem 0 0; }
.section-head { max-width: 44rem; margin-bottom: 1.75rem; }
.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 1.95rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  font-weight: 620;
}
.section-head p { color: var(--page-dim); margin: 0; }
.section-head code { color: var(--page-fg); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: 1px;
  background: var(--page-line);
  border: 1px solid var(--page-line);
  border-radius: 10px;
  overflow: hidden;
}
.card { background: var(--page-panel); padding: 1.4rem 1.5rem; }
.card h3 { margin: 0 0 0.5rem; font-size: 1rem; font-weight: 600; }
.card p { margin: 0; color: var(--page-dim); font-size: 0.94rem; }
.card code { color: var(--page-fg); }

/* ---------------------------------------------------------------- chips -- */

.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; }
.chip {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--page-dim);
  background: transparent;
  border: 1px solid var(--page-line);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  cursor: pointer;
  transition: color 0.12s, border-color 0.12s;
}
.chip:hover { color: var(--page-fg); }
.chip.on { color: var(--page-bg); background: var(--page-accent); border-color: var(--page-accent); }

/* --------------------------------------------------------------- window -- */

.window {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
}

.chrome {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 0.85rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.chrome-title { margin-left: 0.6rem; color: var(--muted); font-size: 0.78rem; }

.panes { display: flex; align-items: stretch; }

.pane { min-width: 0; }
.pane-tree {
  width: 15rem;
  flex: none;
  border-right: 1px solid var(--border);
  background: var(--surface);
}
.pane-doc { flex: 1 1 auto; min-width: 0; }

.pane-title {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  color: var(--muted);
  font-size: 0.75rem;
  border-bottom: 1px solid var(--border);
}
.pane-pct { color: var(--accent); }

.scroll { overflow-x: auto; max-height: 34rem; overflow-y: auto; }

pre.doc, pre.tree {
  margin: 0;
  padding: 1rem 1.25rem;
  color: var(--fg);
  white-space: pre;
  tab-size: 2;
}
pre.tree { color: var(--fg); }

.row { display: block; }
.row.sel { background: var(--selection); color: var(--selection-text); }

.status {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
  padding: 0.5rem 1rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.74rem;
}

/* The role-to-color map, the same one roles.ts applies in the terminal. */
.r-h1 { color: var(--title); }
.r-h2 { color: var(--primary); }
.r-h3 { color: var(--secondary); }
.r-code, .r-lang, .r-bullet { color: var(--accent); }
.r-fence { color: var(--fg); }
.r-gutter, .r-rule { color: var(--border); }
.r-link, .r-url { color: var(--info); }
.r-quote { color: var(--secondary); }
.r-meta { color: var(--muted); }
.r-th { color: var(--title); }

.b { font-weight: 700; }
.i { font-style: italic; }
.u { text-decoration: underline; }
.d { opacity: 0.6; }

/* ----------------------------------------------------------------- code -- */

.code {
  margin: 0;
  background: var(--page-panel);
  border: 1px solid var(--page-line);
  border-radius: 10px;
  overflow: hidden;
}
.code figcaption {
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--page-line);
  color: var(--page-dim);
  font-family: var(--mono);
  font-size: 0.75rem;
}
.code pre { margin: 0; padding: 1rem 1.25rem; overflow-x: auto; }
.code code { color: var(--page-fg); font-size: 0.85rem; line-height: 1.7; }

/* ---------------------------------------------------------------- foot -- */

.foot {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  border-top: 1px solid var(--page-line);
  color: var(--page-dim);
  font-size: 0.88rem;
}
.foot-links { display: flex; flex-wrap: wrap; gap: 0.75rem 2rem; justify-content: space-between; }
.foot aside:not(:empty) { margin-top: 1.5rem; }

/* --------------------------------------------------------------- narrow -- */

@media (max-width: 760px) {
  .pane-tree { display: none; }
  .window { font-size: 12px; }
  .top nav { gap: 0.9rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}