/* Tubcal docs — shared stylesheet.
   The tokens and the seven skins are lifted from the app itself
   (frontend/src/styles/tokens.css + themes.css + backdrop.css), so this site
   wears exactly what the app wears. Every component below reads var(--token),
   which is why switching the skin restyles the whole page for free — the same
   trick the app plays. Fonts are self-hosted: no CDN, no tracker, same as the
   app. */

/* ── fonts (self-hosted, SIL OFL) ────────────────────────────────────────── */
@font-face { font-family: 'Fraunces Variable'; font-style: normal; font-display: swap; font-weight: 100 900; src: url('../fonts/fraunces.woff2') format('woff2-variations'); }
@font-face { font-family: 'Fraunces Variable'; font-style: italic; font-display: swap; font-weight: 100 900; src: url('../fonts/fraunces-italic.woff2') format('woff2-variations'); }
@font-face { font-family: 'Schibsted Grotesk Variable'; font-style: normal; font-display: swap; font-weight: 400 900; src: url('../fonts/schibsted-grotesk.woff2') format('woff2-variations'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-display: swap; font-weight: 400; src: url('../fonts/ibm-plex-mono-400.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-display: swap; font-weight: 500; src: url('../fonts/ibm-plex-mono-500.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-display: swap; font-weight: 600 700; src: url('../fonts/ibm-plex-mono-600.woff2') format('woff2'); }
/* skin fonts — a browser only fetches these once a skin actually uses them */
@font-face { font-family: 'VT323'; font-style: normal; font-display: swap; font-weight: 400; src: url('../fonts/vt323.woff2') format('woff2'); }
@font-face { font-family: 'Archivo'; font-style: normal; font-display: swap; font-weight: 400 500; src: url('../fonts/archivo-400.woff2') format('woff2'); }
@font-face { font-family: 'Archivo'; font-style: normal; font-display: swap; font-weight: 600 800; src: url('../fonts/archivo-600.woff2') format('woff2'); }
@font-face { font-family: 'Archivo'; font-style: normal; font-display: swap; font-weight: 900; src: url('../fonts/archivo-900.woff2') format('woff2'); }
@font-face { font-family: 'Space Grotesk Variable'; font-style: normal; font-display: swap; font-weight: 300 700; src: url('../fonts/space-grotesk.woff2') format('woff2-variations'); }
@font-face { font-family: 'Inter Variable'; font-style: normal; font-display: swap; font-weight: 100 900; src: url('../fonts/inter.woff2') format('woff2-variations'); }
/* JetBrains Mono for Cutting Mat (the app uses the system's copy; here it's served, Latin only) */
@font-face { font-family: 'JetBrains Mono'; font-style: normal; font-display: swap; font-weight: 400 500; src: url('../fonts/jetbrains-mono-400.woff2') format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-style: normal; font-display: swap; font-weight: 600 700; src: url('../fonts/jetbrains-mono-700.woff2') format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-style: normal; font-display: swap; font-weight: 800 900; src: url('../fonts/jetbrains-mono-800.woff2') format('woff2'); }

/* ===================================================================== *
 * SHŌWA NIGHT — the house look (tokens.css, verbatim)
 * ===================================================================== */
:root {
  --ink: #1c140d;
  --ink-2: #251910;
  --ink-3: #302114;
  --paper: #e8d9b8;
  --paper-dim: #b7a07c;
  --paper-faint: #897053;
  --rule: rgba(232, 217, 184, 0.12);
  --rule-strong: rgba(232, 217, 184, 0.26);
  --surface: rgba(232, 217, 184, 0.045);
  --surface-hover: rgba(232, 217, 184, 0.085);
  --surface-input: rgba(232, 217, 184, 0.06);
  --backdrop: rgba(16, 10, 5, 0.8);
  --shadow-modal: 0 28px 70px rgba(16, 9, 3, 0.66);
  --glow-strength: 1;
  --grain-opacity: 0.05;

  --signal: #e6ab5e;
  --signal-soft: rgba(230, 171, 94, 0.16);
  --c-youtube: #c4503a;
  --c-reddit: #cf7733;
  --c-hn: #d3a24a;
  --c-foryou: #e6ab5e;
  --c-github: #9a8ec7;
  --c-anime: var(--signal);
  --c-editor: #9aae64;
  --c-dev: #8fae9b;
  --success: #9aae64;
  --danger: #c75a44;

  --accent-strong: #c8643c;
  --accent-glow: rgba(230, 171, 94, 0.32);
  --shadow-card: 0 12px 34px rgba(16, 9, 3, 0.4);

  --font-display: 'Fraunces Variable', georgia, serif;
  --font-body: 'Schibsted Grotesk Variable', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  --r-card: 14px;
  --r-media: 16px;
  --r-modal: 18px;
  --r-pill: 999px;
  --r-input: 10px;

  --rail-0: #e6ab5e;
  --rail-1: #d3a24a;
  --rail-2: #9aae64;
  --rail-3: #c8643c;
  --rail-4: #cf7733;

  --hand: cubic-bezier(0.22, 0.68, 0.24, 1);
  --shell: 1180px;
  color-scheme: dark;
}

/* SHŌWA DAY */
[data-theme='light'] {
  --ink: #e6d8bb;
  --ink-2: #ddcdac;
  --ink-3: #d3c19c;
  --paper: #2a1d12;
  --paper-dim: #6a5740;
  --paper-faint: #978a6e;
  --rule: rgba(42, 29, 18, 0.16);
  --rule-strong: rgba(42, 29, 18, 0.4);
  --surface: rgba(42, 29, 18, 0.04);
  --surface-hover: rgba(42, 29, 18, 0.075);
  --surface-input: rgba(255, 250, 238, 0.6);
  --backdrop: rgba(74, 54, 32, 0.42);
  --shadow-modal: 0 28px 70px rgba(82, 58, 30, 0.3);
  --glow-strength: 0.4;
  --grain-opacity: 0.045;

  --signal: #b06a26;
  --signal-soft: rgba(176, 106, 38, 0.12);
  --c-youtube: #b5402b;
  --c-reddit: #b4631f;
  --c-hn: #a8761f;
  --c-foryou: #b06a26;
  --c-github: #7b6fa5;
  --c-anime: var(--signal);
  --c-editor: #5e7338;
  --c-dev: #47705a;
  --success: #5e7338;
  --danger: #b3361f;

  --accent-strong: #b04a2e;
  --accent-glow: rgba(176, 106, 38, 0.22);
  --shadow-card: 0 10px 28px rgba(92, 64, 34, 0.14);
  color-scheme: light;
}

/* PHOSPHOR TERMINAL */
[data-theme='terminal'] {
  --ink: #05080a;
  --ink-2: #07110d;
  --ink-3: #0b1a14;
  --paper: #36ff6a;
  --paper-dim: #1fc24f;
  --paper-faint: #178a3a;
  --rule: rgba(54, 255, 106, 0.22);
  --rule-strong: rgba(54, 255, 106, 0.46);
  --surface: rgba(54, 255, 106, 0.05);
  --surface-hover: rgba(54, 255, 106, 0.1);
  --surface-input: rgba(54, 255, 106, 0.07);
  --backdrop: rgba(0, 8, 4, 0.86);
  --shadow-modal: 0 0 0 1px rgba(54, 255, 106, 0.45), 0 24px 60px rgba(0, 0, 0, 0.8);
  --glow-strength: 0;
  --grain-opacity: 0;
  --signal: #36ff6a;
  --signal-soft: rgba(54, 255, 106, 0.16);
  --c-youtube: #36ff6a;
  --c-reddit: #36ff6a;
  --c-hn: #36ff6a;
  --c-foryou: #aaffb8;
  --c-github: #36ff6a;
  --c-editor: #36ff6a;
  --c-dev: #36ff6a;
  --success: #36ff6a;
  --danger: #ff5555;
  --accent-strong: #ffb000;
  --accent-glow: rgba(54, 255, 106, 0.5);
  --shadow-card: 0 0 0 1px rgba(54, 255, 106, 0.18);
  --font-display: 'VT323', 'IBM Plex Mono', monospace;
  --font-body: 'IBM Plex Mono', ui-monospace, monospace;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  --r-card: 0;
  --r-media: 0;
  --r-modal: 0;
  --r-pill: 2px;
  --r-input: 0;
  --rail-0: #36ff6a;
  --rail-1: #aaffb8;
  --rail-2: #1fc24f;
  --rail-3: #ffb000;
  --rail-4: #178a3a;
  color-scheme: dark;
}

/* BAUHAUS PRINT */
[data-theme='bauhaus'] {
  --ink: #f4f1e9;
  --ink-2: #ece7d9;
  --ink-3: #e3ddcb;
  --paper: #111111;
  --paper-dim: #45403a;
  --paper-faint: #79726a;
  --rule: rgba(17, 17, 17, 0.22);
  --rule-strong: rgba(17, 17, 17, 0.9);
  --surface: rgba(17, 17, 17, 0.035);
  --surface-hover: rgba(17, 17, 17, 0.07);
  --surface-input: #ffffff;
  --backdrop: rgba(20, 18, 12, 0.45);
  --shadow-modal: 8px 8px 0 #111111;
  --glow-strength: 0;
  --grain-opacity: 0;
  --signal: #e2231a;
  --signal-soft: rgba(226, 35, 26, 0.14);
  --c-youtube: #e2231a;
  --c-reddit: #0b4ee2;
  --c-hn: #d9a400;
  --c-foryou: #111111;
  --c-github: #0b4ee2;
  --c-editor: #1f7a3d;
  --c-dev: #0b4ee2;
  --success: #1f7a3d;
  --danger: #e2231a;
  --accent-strong: #0b4ee2;
  --accent-glow: transparent;
  --shadow-card: 4px 4px 0 rgba(17, 17, 17, 0.9);
  --font-display: 'Archivo', system-ui, sans-serif;
  --font-body: 'Archivo', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --r-card: 0;
  --r-media: 0;
  --r-modal: 0;
  --r-pill: 0;
  --r-input: 0;
  --rail-0: #e2231a;
  --rail-1: #0b4ee2;
  --rail-2: #d9a400;
  --rail-3: #111111;
  --rail-4: #1f7a3d;
  color-scheme: light;
}

/* BLUEPRINT */
[data-theme='blueprint'] {
  --ink: #081a33;
  --ink-2: #0b2545;
  --ink-3: #0e2d54;
  --paper: #d4ebff;
  --paper-dim: #8fb4d8;
  --paper-faint: #5a86b0;
  --rule: rgba(95, 208, 255, 0.24);
  --rule-strong: rgba(95, 208, 255, 0.55);
  --surface: rgba(95, 208, 255, 0.05);
  --surface-hover: rgba(95, 208, 255, 0.1);
  --surface-input: rgba(8, 26, 51, 0.55);
  --backdrop: rgba(4, 14, 28, 0.82);
  --shadow-modal: 0 0 0 1px rgba(95, 208, 255, 0.45), 0 24px 60px rgba(0, 0, 0, 0.6);
  --glow-strength: 0;
  --grain-opacity: 0;
  --signal: #5fd0ff;
  --signal-soft: rgba(95, 208, 255, 0.16);
  --c-youtube: #5fd0ff;
  --c-reddit: #6fb4ff;
  --c-hn: #8fd6e6;
  --c-foryou: #ffb454;
  --c-github: #b8a8ff;
  --c-editor: #5fd0a0;
  --c-dev: #8fd6e6;
  --success: #5fd0a0;
  --danger: #ff7a6b;
  --accent-strong: #ffb454;
  --accent-glow: rgba(95, 208, 255, 0.4);
  --shadow-card: 0 0 0 1px rgba(95, 208, 255, 0.18);
  --font-display: 'Archivo', system-ui, sans-serif;
  --font-body: 'Archivo', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --r-card: 2px;
  --r-media: 2px;
  --r-modal: 2px;
  --r-pill: 2px;
  --r-input: 2px;
  --rail-0: #5fd0ff;
  --rail-1: #6fb4ff;
  --rail-2: #8fd6e6;
  --rail-3: #ffb454;
  --rail-4: #5fd0a0;
  color-scheme: dark;
}

/* AQUA Y2K */
[data-theme='aqua'] {
  --ink: #eef3fb;
  --ink-2: #e4ecf7;
  --ink-3: #d9e4f4;
  --paper: #1d2b3a;
  --paper-dim: #4a5b6e;
  --paper-faint: #7d8da0;
  --rule: rgba(29, 43, 58, 0.16);
  --rule-strong: rgba(29, 43, 58, 0.34);
  --surface: rgba(255, 255, 255, 0.72);
  --surface-hover: rgba(255, 255, 255, 0.92);
  --surface-input: #ffffff;
  --backdrop: rgba(40, 60, 90, 0.35);
  --shadow-modal: 0 24px 60px rgba(20, 50, 90, 0.32);
  --glow-strength: 0;
  --grain-opacity: 0;
  --signal: #1a73e8;
  --signal-soft: rgba(26, 115, 232, 0.14);
  --c-youtube: #e84a3a;
  --c-reddit: #ff7a2f;
  --c-hn: #f5a623;
  --c-foryou: #1a73e8;
  --c-github: #5856d6;
  --c-editor: #28c840;
  --c-dev: #5856d6;
  --success: #28c840;
  --danger: #ff5f57;
  --accent-strong: #0a59c8;
  --accent-glow: rgba(26, 115, 232, 0.4);
  --shadow-card: 0 8px 20px rgba(30, 60, 100, 0.14);
  --font-display: 'Lucida Grande', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'Lucida Grande', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --r-card: 12px;
  --r-media: 12px;
  --r-modal: 14px;
  --r-pill: 999px;
  --r-input: 9px;
  --rail-0: #1a73e8;
  --rail-1: #e84a3a;
  --rail-2: #ff7a2f;
  --rail-3: #28c840;
  --rail-4: #12b5c9;
  color-scheme: light;
}

/* DEEP SPACE */
[data-theme='space'] {
  --ink: #05060c;
  --ink-2: #0b0e1c;
  --ink-3: #11152a;
  --paper: #e8ecff;
  --paper-dim: #a6adcf;
  --paper-faint: #6f769b;
  --rule: rgba(160, 180, 255, 0.16);
  --rule-strong: rgba(160, 180, 255, 0.36);
  --surface: rgba(140, 160, 255, 0.06);
  --surface-hover: rgba(140, 160, 255, 0.12);
  --surface-input: rgba(20, 24, 48, 0.5);
  --backdrop: rgba(4, 5, 14, 0.72);
  --shadow-modal: 0 30px 80px rgba(0, 0, 0, 0.62);
  --glow-strength: 0;
  --grain-opacity: 0;
  --signal: #7c5cff;
  --signal-soft: rgba(124, 92, 255, 0.18);
  --c-youtube: #ff5ca8;
  --c-reddit: #ff8a5c;
  --c-hn: #ffd25c;
  --c-foryou: #22d3ee;
  --c-github: #b9a8ff;
  --c-editor: #34e2b0;
  --c-dev: #8fb3ff;
  --success: #34e2b0;
  --danger: #ff6b8b;
  --accent-strong: #22d3ee;
  --accent-glow: rgba(124, 92, 255, 0.55);
  --shadow-card: 0 16px 40px rgba(0, 0, 0, 0.45);
  --font-display: 'Space Grotesk Variable', system-ui, sans-serif;
  --font-body: 'Inter Variable', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --r-card: 18px;
  --r-media: 18px;
  --r-modal: 22px;
  --r-pill: 999px;
  --r-input: 14px;
  --rail-0: #7c5cff;
  --rail-1: #22d3ee;
  --rail-2: #ff5ca8;
  --rail-3: #34e2b0;
  --rail-4: #ffd25c;
  color-scheme: dark;
}

/* CUTTING MAT — Catppuccin Macchiato windows over a teal self-healing mat */
[data-theme='bench'] {
  --ink: #161c26;
  --ink-2: #1c2230;
  --ink-3: #242a3b;
  --paper: #cad3f5;
  --paper-dim: #a5adcb;
  --paper-faint: #8087a2;
  --rule: rgba(202, 211, 245, 0.1);
  --rule-strong: rgba(202, 211, 245, 0.22);
  --surface: rgba(202, 211, 245, 0.045);
  --surface-hover: rgba(202, 211, 245, 0.085);
  --surface-input: rgba(8, 10, 18, 0.42);
  --backdrop: rgba(10, 18, 22, 0.72);
  --shadow-modal: 0 24px 70px rgba(4, 14, 16, 0.55);
  --glow-strength: 0;
  --grain-opacity: 0;
  --signal: #8aadf4;
  --signal-soft: rgba(138, 173, 244, 0.16);
  --c-youtube: #ed8796;
  --c-reddit: #f5a97f;
  --c-hn: #eed49f;
  --c-foryou: #91d7e3;
  --c-github: #c6a0f6;
  --c-editor: #a6da95;
  --c-dev: #8bd5ca;
  --success: #a6da95;
  --danger: #ed8796;
  --accent-strong: #f5a97f;
  --accent-glow: rgba(138, 173, 244, 0.35);
  --shadow-card: 0 10px 26px rgba(6, 14, 18, 0.32);
  --font-display: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, monospace;
  --font-body: 'Inter Variable', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, monospace;
  --r-card: 10px;
  --r-media: 8px;
  --r-modal: 12px;
  --r-pill: 999px;
  --r-input: 8px;
  --rail-0: #8aadf4;
  --rail-1: #eed49f;
  --rail-2: #a6da95;
  --rail-3: #f5a97f;
  --rail-4: #c6a0f6;
  /* the skin's own: the mat, the window glass, the bar, the supply's LCD */
  --bench-mat: #5f948f;
  --bench-window: rgba(17, 21, 32, 0.9);
  --bench-edge: rgba(202, 211, 245, 0.07);
  --bench-bar: rgba(11, 13, 22, 0.95);
  --bench-lcd: #4cca64;
  --bench-shadow: 0 16px 40px rgba(8, 26, 28, 0.38);
  color-scheme: dark;
}

/* ===================================================================== *
 * BASE
 * ===================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}
* {
  margin: 0;
}
html {
  background: var(--ink);
  scroll-behavior: smooth;
  scroll-padding-top: 76px;
  -webkit-text-size-adjust: 100%;
}
body {
  min-height: 100vh;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 0.35s ease, color 0.35s ease;
}
img,
svg,
video {
  display: block;
  max-width: 100%;
}
button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}
button {
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}
a {
  color: inherit;
  text-decoration: none;
}
h1,
h2,
h3,
h4,
h5 {
  font-family: var(--font-display);
  font-weight: 560;
  line-height: 1.12;
  letter-spacing: 0;
}
p a,
li a,
td a,
.prose a {
  color: var(--signal);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--signal) 40%, transparent);
  text-underline-offset: 3px;
}
p a:hover,
li a:hover,
td a:hover,
.prose a:hover {
  text-decoration-color: var(--signal);
}
:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}
::selection {
  background: var(--signal);
  color: var(--ink);
}
* {
  scrollbar-width: thin;
  scrollbar-color: var(--rule-strong) transparent;
}
code,
kbd,
pre,
samp {
  font-family: var(--font-mono);
}
:not(pre) > code {
  padding: 1px 6px;
  border-radius: 6px;
  border: 1px solid var(--rule);
  background: var(--surface);
  font-size: 0.86em;
  color: var(--paper);
  overflow-wrap: anywhere;
}
kbd {
  display: inline-grid;
  place-items: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  border-radius: 6px;
  border: 1px solid var(--rule-strong);
  border-bottom-width: 2px;
  background: color-mix(in srgb, var(--paper) 6%, var(--ink-2));
  font-size: 11px;
  font-weight: 500;
  line-height: 1;
  color: var(--paper);
  vertical-align: 1px;
  white-space: nowrap;
}
kbd + kbd {
  margin-left: 3px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  padding: 8px 14px;
  border-radius: 10px;
  background: var(--signal);
  color: var(--ink);
  font-weight: 600;
}
.skip:focus {
  top: 12px;
}

/* ===================================================================== *
 * BACKDROP — each skin paints its own atmosphere (backdrop.css)
 * ===================================================================== */
.backdrop {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.backdrop > div {
  position: absolute;
}
.backdrop__lamp {
  width: 130vmax;
  height: 95vmax;
  top: -48vmax;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(230, 171, 94, 0.22) 0%, rgba(230, 171, 94, 0.07) 34%, transparent 62%);
  opacity: var(--glow-strength);
  animation: lampGlow 22s ease-in-out infinite alternate;
}
.backdrop__floor {
  width: 150vmax;
  height: 90vmax;
  bottom: -60vmax;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(176, 96, 44, 0.1) 0%, rgba(176, 96, 44, 0.03) 40%, transparent 66%);
  opacity: var(--glow-strength);
}
@keyframes lampGlow {
  from { transform: translateX(-50%) scale(1); opacity: calc(var(--glow-strength) * 0.85); }
  to { transform: translateX(-50%) scale(1.06); opacity: var(--glow-strength); }
}
.backdrop__scan {
  inset: 0;
  background-image: repeating-linear-gradient(to bottom, rgba(0, 0, 0, 0.26) 0px, rgba(0, 0, 0, 0.26) 1px, transparent 1px, transparent 4px);
  opacity: 0.8;
  mix-blend-mode: multiply;
}
[data-theme='light'] .backdrop__scan {
  opacity: 0.34;
}
.backdrop__grain {
  inset: 0;
  opacity: var(--grain-opacity);
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.backdrop__vignette {
  inset: 0;
  background: radial-gradient(ellipse 128% 118% at 50% 46%, transparent 52%, rgba(10, 6, 2, 0.46) 100%);
}
[data-theme='light'] .backdrop__vignette {
  background: radial-gradient(ellipse 128% 118% at 50% 46%, transparent 58%, rgba(120, 90, 52, 0.16) 100%);
}
.bd-term__scan {
  inset: 0;
  background-image: repeating-linear-gradient(to bottom, rgba(0, 0, 0, 0.32) 0px, rgba(0, 0, 0, 0.32) 1px, transparent 1px, transparent 3px);
  opacity: 0.7;
}
.bd-term__flicker {
  inset: 0;
  background: radial-gradient(ellipse 90% 70% at 50% 42%, rgba(54, 255, 106, 0.07), transparent 70%);
  animation: tcFlicker 5s ease-in-out infinite;
}
@keyframes tcFlicker {
  0%, 100% { opacity: 0.85; }
  47% { opacity: 1; }
  48% { opacity: 0.7; }
  49% { opacity: 1; }
  70% { opacity: 0.92; }
}
.bd-term__vignette {
  inset: 0;
  background: radial-gradient(ellipse 124% 116% at 50% 48%, transparent 46%, rgba(0, 0, 0, 0.72) 100%);
}
.bd-bau__circle {
  width: 46vmax;
  height: 46vmax;
  right: -10vmax;
  top: -8vmax;
  border-radius: 50%;
  background: #e2231a;
  opacity: 0.12;
}
.bd-bau__bar {
  width: 150vmax;
  height: 12vmax;
  left: -10vmax;
  top: 38%;
  background: #0b4ee2;
  opacity: 0.1;
  transform: rotate(-18deg);
}
.bd-bau__tri {
  left: -4vmax;
  bottom: -6vmax;
  width: 0;
  height: 0;
  border-left: 22vmax solid transparent;
  border-right: 22vmax solid transparent;
  border-bottom: 34vmax solid #ffd400;
  opacity: 0.13;
}
.bd-bp__grid {
  inset: 0;
  background-image:
    repeating-linear-gradient(to right, rgba(95, 208, 255, 0.16) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(to bottom, rgba(95, 208, 255, 0.16) 0 1px, transparent 1px 40px);
}
.bd-bp__grid--fine {
  background-image:
    repeating-linear-gradient(to right, rgba(95, 208, 255, 0.07) 0 1px, transparent 1px 8px),
    repeating-linear-gradient(to bottom, rgba(95, 208, 255, 0.07) 0 1px, transparent 1px 8px);
}
.bd-bp__vignette {
  inset: 0;
  background: radial-gradient(ellipse 126% 116% at 50% 46%, transparent 50%, rgba(3, 11, 24, 0.66) 100%);
}
.bd-aqua__sky {
  inset: 0;
  background: linear-gradient(180deg, #cfe0f7 0%, #eef3fb 55%, #e7eefb 100%);
}
.bd-aqua__pin {
  inset: 0;
  background-image: repeating-linear-gradient(to bottom, rgba(120, 150, 200, 0.05) 0 1px, transparent 1px 4px);
}
.bd-space__nebula {
  inset: -10%;
  background:
    radial-gradient(40vmax 36vmax at 18% 22%, rgba(124, 92, 255, 0.32), transparent 60%),
    radial-gradient(44vmax 40vmax at 82% 72%, rgba(34, 211, 238, 0.22), transparent 62%),
    radial-gradient(34vmax 30vmax at 60% 30%, rgba(255, 92, 168, 0.16), transparent 60%);
  animation: spaceDrift 48s ease-in-out infinite alternate;
}
@keyframes spaceDrift {
  from { transform: translate3d(-2%, -1%, 0) scale(1); }
  to { transform: translate3d(2%, 2%, 0) scale(1.08); }
}
.bd-space__stars {
  inset: 0;
  background-image:
    radial-gradient(1.4px 1.4px at 20px 30px, rgba(255, 255, 255, 0.9), transparent),
    radial-gradient(1.4px 1.4px at 120px 80px, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1.6px 1.6px at 200px 160px, rgba(200, 220, 255, 0.9), transparent),
    radial-gradient(1.2px 1.2px at 280px 40px, rgba(255, 255, 255, 0.6), transparent),
    radial-gradient(1.4px 1.4px at 340px 220px, rgba(255, 255, 255, 0.8), transparent);
  background-size: 360px 280px;
  animation: starDrift 90s linear infinite;
}
.bd-space__stars--far {
  background-size: 240px 200px;
  opacity: 0.55;
  animation-duration: 150s;
}
@keyframes starDrift {
  from { background-position: 0 0; }
  to { background-position: 0 -1400px; }
}

/* ===================================================================== *
 * SHARED PIECES
 * ===================================================================== */
.page {
  position: relative;
  z-index: 1;
}
.shell {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--space-6) var(--space-8);
}
@media (max-width: 800px) {
  .shell {
    padding: 0 var(--space-4) var(--space-7);
  }
}

.kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--signal);
}
.glass {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-card);
}
.rule {
  border: none;
  border-top: 1px solid var(--rule);
}
.rule-double {
  border: none;
  border-top: 3px double var(--rule-strong);
}
.muted {
  color: var(--paper-faint);
}
.dim {
  color: var(--paper-dim);
}

/* the topline strip (the tour's top, the console's) */
.tc-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-faint);
}
.tc-topline > * {
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.onair {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--signal);
}
.led {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 10px var(--signal);
  animation: ledPulse 2.4s ease-in-out infinite;
}
@keyframes ledPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.tc-wordmark {
  font-family: var(--font-display);
  font-weight: 640;
  line-height: 0.95;
  letter-spacing: -0.015em;
  color: var(--paper);
  white-space: nowrap;
}
.tc-wordmark em {
  font-style: italic;
  color: var(--signal);
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 8px 16px;
  border-radius: var(--r-pill);
  border: 1px solid var(--rule-strong);
  background: var(--surface);
  color: var(--paper);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s var(--hand);
}
.btn:hover {
  background: var(--surface-hover);
  border-color: color-mix(in srgb, var(--signal) 55%, var(--rule-strong));
}
.btn:active {
  transform: translateY(1px);
}
.btn-lit {
  border-color: transparent;
  background: var(--signal);
  color: var(--ink);
  font-weight: 600;
  box-shadow: 0 0 22px color-mix(in srgb, var(--signal) 35%, transparent);
}
.btn-lit:hover {
  background: color-mix(in srgb, var(--signal) 88%, var(--paper));
  border-color: transparent;
}
.btn-sm {
  min-height: 32px;
  padding: 5px 12px;
  font-size: 13px;
}
.iconbtn {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  flex: none;
  border-radius: 10px;
  color: var(--paper-dim);
  transition: color 0.15s ease, background 0.15s ease;
}
.iconbtn:hover {
  color: var(--paper);
  background: var(--surface-hover);
}
.ico {
  width: 16px;
  height: 16px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.ico-lg {
  width: 20px;
  height: 20px;
}

/* chips & toggles */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: var(--r-pill);
  border: 1px solid var(--rule);
  background: var(--surface);
  font-size: 12.5px;
  color: var(--paper-dim);
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
button.chip:hover {
  color: var(--paper);
  border-color: var(--rule-strong);
}
.chip[aria-pressed='true'],
.chip.on {
  color: var(--ink);
  background: var(--chip-c, var(--signal));
  border-color: transparent;
  font-weight: 600;
}
.switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}
.switch input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}
.switch .track {
  position: relative;
  flex: none;
  width: 34px;
  height: 20px;
  border-radius: 999px;
  border: 1px solid var(--rule-strong);
  background: var(--surface);
  transition: background 0.2s ease, border-color 0.2s ease;
}
.switch .track::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--paper-faint);
  transition: transform 0.22s var(--hand), background 0.2s ease;
}
.switch input:checked + .track {
  background: color-mix(in srgb, var(--sw-c, var(--signal)) 30%, transparent);
  border-color: var(--sw-c, var(--signal));
}
.switch input:checked + .track::after {
  transform: translateX(14px);
  background: var(--sw-c, var(--signal));
  box-shadow: 0 0 8px var(--sw-c, var(--signal));
}
.switch input:focus-visible + .track {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

/* the section head: a number plate over a double rule */
.tc-sectionhead {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 18px;
  align-items: end;
  padding-top: var(--space-5);
  border-top: 3px double var(--rule-strong);
  margin-bottom: var(--space-5);
}
.tc-sectionhead .plate {
  grid-row: span 2;
  align-self: start;
  display: grid;
  place-items: center;
  min-width: 58px;
  height: 58px;
  padding: 0 8px;
  border-radius: 14px;
  border: 1px solid var(--rule-strong);
  background: color-mix(in srgb, var(--sec-c, var(--signal)) 16%, var(--ink-2));
  box-shadow: 0 0 22px color-mix(in srgb, var(--sec-c, var(--signal)) 22%, transparent), inset 0 -3px 0 rgba(0, 0, 0, 0.22);
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 600;
  color: var(--sec-c, var(--signal));
}
.tc-sectionhead .kicker {
  color: var(--sec-c, var(--signal));
}
.tc-sectionhead h2 {
  font-size: clamp(30px, 4.4vw, 46px);
  line-height: 1.02;
}
.tc-sectionhead .dek {
  grid-column: 2;
  max-width: 64ch;
  margin-top: 6px;
  color: var(--paper-dim);
  font-size: 16.5px;
}
@media (max-width: 560px) {
  .tc-sectionhead {
    grid-template-columns: minmax(0, 1fr);
  }
  .tc-sectionhead .plate {
    grid-row: auto;
    justify-self: start;
    min-width: 48px;
    height: 44px;
    font-size: 15px;
  }
  .tc-sectionhead .dek {
    grid-column: 1;
  }
}

/* code blocks with a copy button */
.codeblock {
  position: relative;
  margin: var(--space-4) 0;
  border-radius: var(--r-card);
  border: 1px solid var(--rule);
  background: color-mix(in srgb, var(--ink) 70%, #000 30%);
  overflow: hidden;
}
[data-theme='light'] .codeblock,
[data-theme='bauhaus'] .codeblock,
[data-theme='aqua'] .codeblock {
  background: color-mix(in srgb, var(--ink-2) 80%, #fff 20%);
}
.codeblock .cb-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 8px 6px 14px;
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper-faint);
}
.codeblock pre {
  margin: 0;
  padding: 14px 16px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper);
  tab-size: 2;
}
.codeblock .c {
  color: var(--paper-faint);
}
.codeblock .k {
  color: var(--signal);
}
.codeblock .s {
  color: var(--c-editor);
}
.copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  border-radius: 7px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--paper-dim);
  transition: color 0.15s ease, background 0.15s ease;
}
.copy:hover {
  color: var(--paper);
  background: var(--surface-hover);
}
.copy.done {
  color: var(--success);
}

/* tables */
.table-wrap {
  margin: var(--space-4) 0;
  overflow-x: auto;
  border-radius: var(--r-card);
  border: 1px solid var(--rule);
  background: var(--surface);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
th,
td {
  padding: 10px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--rule);
}
tr:last-child td {
  border-bottom: none;
}
th {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper-faint);
  background: color-mix(in srgb, var(--ink-2) 60%, transparent);
  white-space: nowrap;
}
td.nowrap,
th.nowrap {
  white-space: nowrap;
}

/* callouts */
.callout {
  position: relative;
  margin: var(--space-4) 0;
  padding: 14px 16px 14px 18px;
  border-radius: var(--r-card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--note-c, var(--signal));
  background: color-mix(in srgb, var(--note-c, var(--signal)) 7%, var(--surface));
  color: var(--paper-dim);
  font-size: 14.5px;
}
.callout strong {
  color: var(--paper);
}
.callout-warn {
  --note-c: var(--danger);
}
.callout-ok {
  --note-c: var(--success);
}

/* ===================================================================== *
 * COMMAND PALETTE + SHORTCUTS + TOAST
 * ===================================================================== */
.scrim {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 12vh 16px 16px;
  background: var(--backdrop);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}
.scrim.open {
  display: flex;
  animation: fadeIn 0.16s ease both;
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.palette {
  width: min(620px, 100%);
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--r-modal);
  border: 1px solid var(--rule-strong);
  background: var(--ink-2);
  box-shadow: var(--shadow-modal);
  animation: popIn 0.22s var(--hand) both;
}
@keyframes popIn {
  from { opacity: 0; transform: translateY(-8px) scale(0.985); }
  to { opacity: 1; transform: none; }
}
.palette-in {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--rule);
  color: var(--paper-faint);
}
.palette-in input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  font-size: 16px;
  color: var(--paper);
}
.palette-in input::placeholder {
  color: var(--paper-faint);
}
.palette-list {
  flex: 1;
  overflow-y: auto;
  padding: 6px;
  list-style: none;
}
.palette-group {
  padding: 10px 10px 4px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-faint);
}
.palette-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border-radius: 10px;
  color: var(--paper-dim);
  cursor: pointer;
}
.palette-item .pn {
  display: grid;
  place-items: center;
  height: 24px;
  border-radius: 6px;
  border: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--paper-faint);
}
.palette-item .pt {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 14.5px;
  color: var(--paper);
}
.palette-item .pt small {
  margin-left: 8px;
  font-size: 12px;
  color: var(--paper-faint);
}
.palette-item .pw {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper-faint);
}
.palette-item.on {
  background: var(--surface-hover);
  box-shadow: inset 2px 0 0 var(--signal);
}
.palette-item.on .pn {
  background: var(--signal);
  color: var(--ink);
  border-color: transparent;
}
.palette-empty {
  padding: 22px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--paper-faint);
}
.palette-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding: 9px 14px;
  border-top: 1px solid var(--rule);
  font-size: 11.5px;
  color: var(--paper-faint);
}

.keysheet {
  width: min(720px, 100%);
  max-height: 78vh;
  overflow-y: auto;
  padding: 22px 24px 20px;
  border-radius: var(--r-modal);
  border: 1px solid var(--rule-strong);
  background: var(--ink-2);
  box-shadow: var(--shadow-modal);
  animation: popIn 0.22s var(--hand) both;
}
.keysheet-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.keysheet h3 {
  font-size: 26px;
}
.keysheet-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 6px 28px;
}
.keyrow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 0;
  border-bottom: 1px dashed var(--rule);
  font-size: 13.5px;
  color: var(--paper-dim);
}
.keyrow span:last-child {
  flex: none;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 22px;
  z-index: 80;
  transform: translate(-50%, 20px);
  opacity: 0;
  pointer-events: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: calc(100vw - 32px);
  padding: 10px 16px;
  border-radius: var(--r-pill);
  border: 1px solid var(--rule-strong);
  background: var(--ink-2);
  box-shadow: var(--shadow-modal);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--paper);
  transition: opacity 0.2s ease, transform 0.25s var(--hand);
}
.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}
.toast .led {
  width: 6px;
  height: 6px;
}

/* the chord hint (after pressing g) */
.chord {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 70;
  display: none;
  min-width: 220px;
  padding: 12px 14px;
  border-radius: var(--r-card);
  border: 1px solid var(--rule-strong);
  background: var(--ink-2);
  box-shadow: var(--shadow-modal);
  font-size: 13px;
  animation: popIn 0.18s var(--hand) both;
}
.chord.open {
  display: block;
}
.chord .kicker {
  display: block;
  margin-bottom: 6px;
}
.chord ul {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 3px;
}
.chord li {
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--paper-dim);
}

/* channel switch (1 · 2) */
.chswitch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px;
  padding: 3px;
  border-radius: 11px;
  border: 1px solid var(--rule);
  background: color-mix(in srgb, var(--ink) 55%, transparent);
}
.chswitch a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-width: 0;
  padding: 5px 10px;
  border-radius: 8px;
  font-size: 12.5px;
  color: var(--paper-faint);
  white-space: nowrap;
  transition: color 0.15s ease, background 0.15s ease;
}
.chswitch a b {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
}
.chswitch a:hover {
  color: var(--paper);
}
.chswitch a[aria-current='page'] {
  color: var(--paper);
  background: var(--surface-hover);
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--paper) 6%, transparent);
}
.chswitch a[aria-current='page'] b {
  color: var(--signal);
}

/* search button (opens the palette) */
.searchbtn {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
  padding: 7px 10px;
  border-radius: 10px;
  border: 1px solid var(--rule);
  background: var(--surface-input);
  font-size: 13px;
  color: var(--paper-faint);
  transition: border-color 0.15s ease, color 0.15s ease;
}
.searchbtn:hover {
  color: var(--paper-dim);
  border-color: var(--rule-strong);
}
.searchbtn span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.searchbtn kbd {
  margin-left: auto;
  height: 18px;
  min-width: 0;
  font-size: 9.5px;
  border-bottom-width: 1px;
}

/* skin button: three dots of the current skin */
.skinbtn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 10px;
  font-size: 12.5px;
  color: var(--paper-dim);
  transition: background 0.15s ease, color 0.15s ease;
}
.skinbtn:hover {
  background: var(--surface-hover);
  color: var(--paper);
}
.dots {
  display: inline-flex;
}
.dots i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.25);
}
.dots i + i {
  margin-left: -3px;
}

/* footer */
.sitefoot {
  position: relative;
  z-index: 1;
  padding: var(--space-6) var(--space-4) var(--space-7);
  text-align: center;
  color: var(--paper-faint);
  font-size: 13px;
}
.sitefoot .tc-wordmark {
  font-size: 30px;
  margin-bottom: 8px;
}
.sitefoot p + p {
  margin-top: 4px;
}
.sitefoot em {
  font-family: var(--font-display);
  font-size: 16px;
}

/* reveal on scroll (added by site.js; no-JS pages stay visible) */
.js .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.7s var(--hand);
}
.js .reveal.seen {
  opacity: 1;
  transform: none;
}

/* ── the console (components/layout/HubConsole) — shared by both pages ── */
.tc-console {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 11px 10px 10px;
  border-radius: var(--r-modal);
  border: 1px solid var(--rule);
  background:
    linear-gradient(to bottom, color-mix(in srgb, var(--signal) 6%, transparent), transparent 170px),
    var(--surface);
  box-shadow: var(--shadow-card), inset 0 1px 0 color-mix(in srgb, var(--paper) 5%, transparent);
}
.tc-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}
.tc-navitem {
  --room-c: var(--signal);
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 5px 9px 5px 5px;
  border-radius: 11px;
  text-align: left;
  color: var(--paper-dim);
  transition: color 0.15s ease, background 0.15s ease;
  animation: navIn 0.35s var(--hand) both;
}
@keyframes navIn {
  from { opacity: 0; transform: translateX(-6px); }
  to { opacity: 1; transform: none; }
}
.tc-navitem:hover {
  color: var(--paper);
  background: var(--surface-hover);
}
.tc-navno {
  display: grid;
  place-items: center;
  width: 30px;
  height: 26px;
  border-radius: 7px;
  border: 1px solid var(--rule);
  background: color-mix(in srgb, var(--paper) 5%, transparent);
  box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.22);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--paper-faint);
  transition: background 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}
.tc-navitem .nm {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 540;
}
.tc-navitem-on,
.tc-navitem-on:hover {
  color: var(--paper);
  background: linear-gradient(90deg, color-mix(in srgb, var(--room-c) 17%, transparent), transparent 92%);
}
.tc-navitem-on .tc-navno {
  border-color: transparent;
  background: var(--room-c);
  color: var(--ink);
  font-weight: 700;
  box-shadow: 0 0 14px color-mix(in srgb, var(--room-c) 55%, transparent), inset 0 2px 0 rgba(0, 0, 0, 0.18);
}

/* ===================================================================== *
 * skin hooks for the console (themes.css, "THE HUB CONSOLE, per skin")
 * ===================================================================== */
[data-theme='terminal'] .tc-console {
  border-radius: 0;
  border-color: var(--rule-strong);
  background: var(--ink-2);
  box-shadow: none;
}
[data-theme='terminal'] .tc-nav {
  counter-reset: fkey;
}
[data-theme='terminal'] .tc-navitem {
  counter-increment: fkey;
  border-radius: 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
[data-theme='terminal'] .tc-navno {
  border-radius: 0;
  font-size: 0;
  box-shadow: none;
}
[data-theme='terminal'] .tc-navno::before {
  content: 'F' counter(fkey);
  font-size: 11px;
  color: var(--accent-strong);
}
[data-theme='terminal'] .tc-navitem-on,
[data-theme='terminal'] .tc-navitem-on:hover {
  background: #36ff6a;
  color: #05080a;
  text-shadow: none;
}
[data-theme='terminal'] .tc-navitem-on .tc-navno {
  background: #05080a;
  box-shadow: none;
}
[data-theme='terminal'] .tc-navitem-on .tc-navno::before {
  color: #36ff6a;
}
[data-theme='bauhaus'] .tc-console {
  border: 2px solid #111111;
  border-radius: 0;
  background: #ffffff;
  box-shadow: 6px 6px 0 #111111;
}
[data-theme='bauhaus'] .tc-navitem,
[data-theme='bauhaus'] .tc-navno {
  border-radius: 0;
}
[data-theme='bauhaus'] .tc-navno {
  border: 2px solid #111111;
  box-shadow: none;
  color: #111111;
  font-weight: 700;
}
[data-theme='bauhaus'] .tc-nav > :nth-child(5n + 1) .tc-navno { background: #e2231a; color: #fff; }
[data-theme='bauhaus'] .tc-nav > :nth-child(5n + 2) .tc-navno { background: #0b4ee2; color: #fff; }
[data-theme='bauhaus'] .tc-nav > :nth-child(5n + 3) .tc-navno { background: #ffd400; color: #111; }
[data-theme='bauhaus'] .tc-nav > :nth-child(5n + 4) .tc-navno { background: #111111; color: #fff; }
[data-theme='bauhaus'] .tc-nav > :nth-child(5n + 5) .tc-navno { background: #f4f1e9; color: #111; }
[data-theme='bauhaus'] .tc-navitem-on,
[data-theme='bauhaus'] .tc-navitem-on:hover {
  background: #f4f1e9;
  outline: 3px solid #111111;
  outline-offset: -3px;
}
[data-theme='blueprint'] .tc-console {
  border-radius: 2px;
  border-color: var(--rule-strong);
  background: rgba(11, 37, 69, 0.55);
  box-shadow: none;
}
[data-theme='blueprint'] .tc-navitem,
[data-theme='blueprint'] .tc-navno {
  border-radius: 2px;
}
[data-theme='blueprint'] .tc-navitem-on,
[data-theme='blueprint'] .tc-navitem-on:hover {
  background: rgba(11, 37, 69, 0.8);
  box-shadow: inset 2px 0 0 var(--accent-strong);
}
[data-theme='blueprint'] .tc-navitem-on .tc-navno {
  background: var(--accent-strong);
  box-shadow: none;
}
[data-theme='aqua'] .tc-console {
  border-color: var(--rule-strong);
  background: linear-gradient(#f4f8fe, #dde8f6);
  box-shadow: inset 0 1px 0 #ffffff, 0 10px 28px rgba(26, 60, 120, 0.18);
}
[data-theme='aqua'] .tc-navitem,
[data-theme='aqua'] .tc-navno {
  border-radius: var(--r-pill);
}
[data-theme='aqua'] .tc-navno {
  background: linear-gradient(#ffffff, #e6eef9);
  box-shadow: inset 0 1px 0 #ffffff;
}
[data-theme='aqua'] .tc-navitem-on,
[data-theme='aqua'] .tc-navitem-on:hover {
  background: linear-gradient(#5ea8ff, #1a73e8);
  color: #ffffff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.55), 0 2px 7px rgba(26, 115, 232, 0.45);
}
[data-theme='aqua'] .tc-navitem-on .tc-navno {
  background: rgba(255, 255, 255, 0.92);
  color: #1a73e8;
}
[data-theme='space'] .tc-console {
  border-radius: 22px;
  background: rgba(18, 22, 44, 0.42);
  backdrop-filter: blur(12px);
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.42);
}
[data-theme='space'] .tc-navitem,
[data-theme='space'] .tc-navno {
  border-radius: var(--r-pill);
}
[data-theme='space'] .tc-navitem-on,
[data-theme='space'] .tc-navitem-on:hover {
  background: linear-gradient(96deg, rgba(124, 92, 255, 0.92), rgba(34, 211, 238, 0.92));
  color: #ffffff;
  box-shadow: 0 0 20px rgba(124, 92, 255, 0.5);
}
[data-theme='space'] .tc-navitem-on .tc-navno {
  background: rgba(255, 255, 255, 0.9);
  color: #3b2a8f;
  box-shadow: none;
}


/* ===================================================================== *
 * SKIN HOOKS — the layout personality tokens can't express (themes.css)
 * ===================================================================== */
[data-theme='terminal'] body {
  text-shadow: 0 0 3px rgba(54, 255, 106, 0.28);
  letter-spacing: 0.01em;
}
[data-theme='terminal'] ::selection {
  background: #36ff6a;
  color: #05080a;
  text-shadow: none;
}
[data-theme='terminal'] .glass {
  background: var(--ink-2);
  border: 1px solid var(--rule);
  box-shadow: inset 0 0 0 1px rgba(54, 255, 106, 0.04);
}
[data-theme='terminal'] .tc-topline {
  border: 1px solid var(--rule);
  background: var(--ink-2);
  padding: 6px 10px;
  text-shadow: 0 0 4px rgba(54, 255, 106, 0.4);
}
[data-theme='terminal'] .tc-wordmark:not(.skincard:not([data-theme='terminal']) *) {
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-shadow: 0 0 10px rgba(54, 255, 106, 0.55);
}
[data-theme='terminal'] .tc-wordmark:not(.skincard:not([data-theme='terminal']) *)::before {
  content: 'C:\\> ';
  color: var(--paper-dim);
}
[data-theme='terminal'] .tc-wordmark:not(.skincard:not([data-theme='terminal']) *)::after {
  content: '\2588';
  margin-left: 0.08em;
  animation: tcBlink 1.06s steps(1) infinite;
}
@keyframes tcBlink {
  50% { opacity: 0; }
}
[data-theme='terminal'] .tc-sectionhead .kicker::before {
  content: '> ';
}
[data-theme='terminal'] .btn-lit {
  box-shadow: none;
}

[data-theme='bauhaus'] h1,
[data-theme='bauhaus'] h2,
[data-theme='bauhaus'] h3,
[data-theme='bauhaus'] h4 {
  font-weight: 900;
  letter-spacing: -0.02em;
}
[data-theme='bauhaus'] ::selection {
  background: #ffd400;
  color: #111111;
}
[data-theme='bauhaus'] .glass {
  background: #ffffff;
  border: 2px solid #111111;
  box-shadow: 5px 5px 0 rgba(17, 17, 17, 0.9);
}
[data-theme='bauhaus'] .kicker {
  display: inline-block;
  background: #ffd400;
  color: #111111 !important;
  padding: 2px 7px;
  letter-spacing: 0.16em;
}
[data-theme='bauhaus'] .tc-topline {
  border: 2px solid #111111;
  background: #ffffff;
  padding: 6px 10px;
  color: #111111;
}
[data-theme='bauhaus'] .tc-wordmark:not(.skincard:not([data-theme='bauhaus']) *) {
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.035em;
}
[data-theme='bauhaus'] .btn {
  border: 2px solid #111111;
  box-shadow: 3px 3px 0 #111111;
}
[data-theme='bauhaus'] .btn-lit {
  color: #ffffff;
}

[data-theme='blueprint'] ::selection {
  background: #5fd0ff;
  color: #081a33;
}
[data-theme='blueprint'] .glass {
  background: rgba(11, 37, 69, 0.66);
  border: 1px solid var(--rule-strong);
  box-shadow: none;
  position: relative;
}
[data-theme='blueprint'] .glass::before {
  content: '';
  position: absolute;
  top: 5px;
  left: 5px;
  width: 10px;
  height: 10px;
  border-left: 1px solid var(--signal);
  border-top: 1px solid var(--signal);
  opacity: 0.7;
  pointer-events: none;
}
[data-theme='blueprint'] .kicker::before {
  content: '[ ';
}
[data-theme='blueprint'] .kicker::after {
  content: ' ]';
}
[data-theme='blueprint'] .tc-topline {
  border: 1px solid var(--rule);
  background: rgba(11, 37, 69, 0.5);
  padding: 6px 10px;
}
[data-theme='blueprint'] .tc-wordmark:not(.skincard:not([data-theme='blueprint']) *) {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
[data-theme='blueprint'] .tc-wordmark:not(.skincard:not([data-theme='blueprint']) *)::after {
  content: ' REV.A';
  font-family: var(--font-mono);
  font-size: 0.26em;
  vertical-align: super;
  color: var(--accent-strong);
  letter-spacing: 0.1em;
}

[data-theme='aqua'] ::selection {
  background: #1a73e8;
  color: #ffffff;
}
[data-theme='aqua'] .glass {
  background: #ffffff;
  border: 1px solid var(--rule);
  box-shadow: 0 8px 20px rgba(30, 60, 100, 0.14), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}
[data-theme='aqua'] .tc-topline {
  position: relative;
  padding: 8px 14px 8px 74px;
  border: 1px solid var(--rule-strong);
  border-radius: 10px;
  background: linear-gradient(#fdfeff, #dbe6f5);
  box-shadow: inset 0 1px 0 #ffffff;
  color: var(--paper-dim);
}
[data-theme='aqua'] .tc-topline::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #ff5f57;
  box-shadow: 18px 0 0 #febc2e, 36px 0 0 #28c840;
}
[data-theme='aqua'] .tc-wordmark:not(.skincard:not([data-theme='aqua']) *) {
  font-weight: 700;
  letter-spacing: -0.01em;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.8);
}
[data-theme='aqua'] .btn-lit {
  background: linear-gradient(#5ea8ff, #1a73e8);
  color: #ffffff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.55), 0 2px 7px rgba(26, 115, 232, 0.45);
}

[data-theme='space'] ::selection {
  background: #7c5cff;
  color: #ffffff;
}
[data-theme='space'] .glass {
  background: rgba(18, 22, 44, 0.45);
  border: 1px solid rgba(160, 180, 255, 0.2);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
[data-theme='space'] .tc-topline {
  padding: 7px 16px;
  border: 1px solid var(--rule);
  border-radius: var(--r-pill);
  background: rgba(18, 22, 44, 0.4);
  backdrop-filter: blur(10px);
}
[data-theme='space'] .tc-wordmark:not(.skincard:not([data-theme='space']) *) {
  font-weight: 600;
  letter-spacing: -0.02em;
  background: linear-gradient(96deg, #b9a8ff 0%, #7c5cff 42%, #22d3ee 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 22px rgba(124, 92, 255, 0.45));
}
[data-theme='space'] .tc-wordmark:not(.skincard:not([data-theme='space']) *) em {
  color: #22d3ee;
  -webkit-text-fill-color: #22d3ee;
}
[data-theme='space'] .btn-lit {
  background: linear-gradient(96deg, #7c5cff, #22d3ee);
  color: #ffffff;
}

/* ===================================================================== *
 * CUTTING MAT — the desk it runs on (themes.css + backdrop.css). Nothing may
 * sit on the bare mat: pages are translucent windows, the consoles and bars
 * are near-black, and the few lines the tour's top prints straight on the mat
 * get a strip of bar to stand on.
 * ===================================================================== */
.bd-bench__mat {
  inset: 0;
  background: linear-gradient(168deg, #6ba09b 0%, #5f948f 42%, #4f837e 100%);
}
/* the mat's grid, seen at an angle: one set of lines rising ~20°, one falling ~32° */
.bd-bench__grid {
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100%25' height='100%25'%3E%3Cdefs%3E%3Cpattern id='a' width='36' height='36' patternUnits='userSpaceOnUse' patternTransform='rotate(-20)'%3E%3Crect y='34.5' width='36' height='1.5' fill='%23d8f6ef' fill-opacity='.32'/%3E%3C/pattern%3E%3Cpattern id='b' width='48' height='48' patternUnits='userSpaceOnUse' patternTransform='rotate(32)'%3E%3Crect y='46.5' width='48' height='1.5' fill='%23d8f6ef' fill-opacity='.32'/%3E%3C/pattern%3E%3C/defs%3E%3Crect width='100%25' height='100%25' fill='url(%23a)'/%3E%3Crect width='100%25' height='100%25' fill='url(%23b)'/%3E%3C/svg%3E");
}
/* the desk lamp: a soft pool top left, the far corner falling into shade */
.bd-bench__light {
  inset: 0;
  background:
    radial-gradient(70vmax 55vmax at 12% -6%, rgba(255, 255, 255, 0.11), transparent 62%),
    radial-gradient(85vmax 70vmax at 104% 108%, rgba(18, 38, 42, 0.42), transparent 66%);
}

html[data-theme='bench'],
[data-theme='bench'] body {
  background: var(--bench-mat);
}
[data-theme='bench'] h1,
[data-theme='bench'] h2 {
  letter-spacing: -0.02em;
}
[data-theme='bench'] ::selection {
  background: #8aadf4;
  color: #1e2030;
}
[data-theme='bench'] .glass {
  background: var(--bench-window);
  border: 1px solid var(--bench-edge);
  border-radius: var(--r-card);
  box-shadow: var(--bench-shadow);
}

/* the windows: each tour stop, the manual's page and the footer */
[data-theme='bench'] .tour-sec > .shell,
[data-theme='bench'] .man-main,
[data-theme='bench'] .sitefoot {
  border: 1px solid var(--bench-edge);
  border-radius: 10px;
  background: var(--bench-window);
  box-shadow: var(--bench-shadow);
}
[data-theme='bench'] .tour-sec > .shell {
  width: calc(100% - 2 * var(--space-4));
  padding-top: var(--space-6);
}
[data-theme='bench'] .man-main {
  margin-bottom: var(--space-6);
  padding: 0 var(--space-6) var(--space-6);
}
[data-theme='bench'] .sitefoot {
  width: min(var(--shell), calc(100% - 2 * var(--space-4)));
  margin: var(--space-7) auto var(--space-6);
}
[data-theme='bench'] .man-main .sitefoot {
  width: auto;
  margin: var(--space-7) 0 0;
  border: 0;
  border-top: 3px double var(--rule-strong);
  border-radius: 0;
  background: none;
  box-shadow: none;
}
@media (max-width: 960px) {
  [data-theme='bench'] .man-main {
    margin-top: var(--space-4);
    padding: 0 var(--space-4) var(--space-5);
  }
}
/* a panel inside a window needn't be a second window */
[data-theme='bench'] .tour-sec .glass,
[data-theme='bench'] .man-main .glass {
  background: rgba(202, 211, 245, 0.035);
  box-shadow: none;
}

/* the bars: near-black, like the one down the screen's edge */
[data-theme='bench'] .tc-console,
[data-theme='bench'] .bar-in {
  border: 1px solid var(--bench-edge);
  border-radius: 10px;
  background: var(--bench-bar);
  box-shadow: var(--bench-shadow);
}
[data-theme='bench'] .tour-sec .tc-console {
  background: var(--bench-bar);
}

/* the top line, lit like the bench supply's display: green segments on glass */
[data-theme='bench'] .tc-topline {
  --signal: var(--bench-lcd);
  padding: 7px 10px;
  border: 0;
  border-radius: 6px;
  background: #1d211f;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.55), inset 0 3px 10px rgba(0, 0, 0, 0.6);
  color: color-mix(in srgb, var(--bench-lcd) 70%, #1d211f);
  text-shadow: 0 0 6px rgba(76, 202, 100, 0.5);
}

/* the wordmark is a shell prompt */
[data-theme='bench'] .tc-wordmark:not(.skincard:not([data-theme='bench']) *) {
  font-variation-settings: normal;
  font-weight: 800;
  letter-spacing: -0.05em;
}
[data-theme='bench'] .tc-wordmark:not(.skincard:not([data-theme='bench']) *)::before {
  content: '\276F\00a0';
  color: var(--c-editor);
  font-weight: 700;
}
[data-theme='bench'] .tc-wordmark:not(.skincard:not([data-theme='bench']) *) em {
  font-style: normal;
  color: var(--signal);
}

/* the rooms: workspace keys; the one you're on is a lualine mode block in its
   own colour, pointed on the right like the status line's segments */
[data-theme='bench'] .tc-navitem {
  border-radius: 8px;
}
[data-theme='bench'] .tc-navno {
  border-radius: 6px;
  background: rgba(202, 211, 245, 0.06);
  box-shadow: none;
  font-family: var(--font-mono);
}
[data-theme='bench'] .tc-navitem-on,
[data-theme='bench'] .tc-navitem-on:hover {
  background: var(--room-c, var(--signal));
  color: #1e2030;
  border-radius: 8px 0 0 8px;
  clip-path: polygon(0 0, calc(100% - 11px) 0, 100% 50%, calc(100% - 11px) 100%, 0 100%);
  box-shadow: none;
}
[data-theme='bench'] .tc-navitem-on .tc-navno {
  background: #1e2030;
  color: var(--room-c, var(--signal));
  box-shadow: none;
}

/* the tour's top prints its name straight on the mat, as the app's Home does;
   the words under it sit in a window, and the facts and the hint get one each */
[data-theme='bench'] .hero-mark {
  color: #e8ecfb;
  text-shadow: 0 3px 0 rgba(20, 54, 54, 0.35), 0 10px 30px rgba(10, 30, 32, 0.35);
}
[data-theme='bench'] .hero-mark em {
  margin-left: -0.35em; /* a mono cell's side-bearing would float the stop off the word */
}
[data-theme='bench'] .hero-body,
[data-theme='bench'] .hero-facts > div,
[data-theme='bench'] .hint {
  border: 1px solid var(--bench-edge);
  background: var(--bench-window);
  box-shadow: var(--bench-shadow);
}
[data-theme='bench'] .hero-body {
  margin-top: var(--space-4);
  padding: var(--space-5);
  border-radius: 12px;
}
[data-theme='bench'] .hero-tag {
  margin-top: 0;
  font-style: normal;
  font-weight: 700;
  letter-spacing: -0.03em;
}
[data-theme='bench'] .hint {
  width: fit-content;
  max-width: 100%;
  margin-inline: auto;
  padding: 6px 16px;
  border-radius: 10px;
}
[data-theme='bench'] .btn-lit {
  color: #1e2030;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}