/* Qodoonect HIVE — shared stylesheet for the landing (/), /whitepaper, /privacy, /terms, /404
   and the chrome of the Runes gallery (/runes, plus assets/runes.css).
   No inline styles anywhere: vercel.json sends CSP style-src 'self'.

   Theme: <html data-theme="light|dark"> is set before first paint by assets/theme-init.js
   (saved choice, else the system setting). Without JavaScript there is no data-theme and the
   prefers-color-scheme block below decides. Palette: Group V8 / Praesepe kit — Hive gold
   #F5C76A, soft #FFE4A6, secondary #FB923C, navy #04050A / #0B0E22. */

/* ---------- Fonts (self-hosted, OFL 1.1 — fonts/LICENSE-*.txt) ---------- */
@font-face { font-family: "Inter"; font-style: normal; font-display: swap; font-weight: 100 900;
  src: url("/fonts/inter-latin-wght.woff2") format("woff2-variations"), url("/fonts/inter-latin-wght.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Inter"; font-style: normal; font-display: swap; font-weight: 100 900;
  src: url("/fonts/inter-latin-ext-wght.woff2") format("woff2-variations"), url("/fonts/inter-latin-ext-wght.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "JetBrains Mono"; font-style: normal; font-display: swap; font-weight: 100 800;
  src: url("/fonts/jetbrains-mono-latin-wght.woff2") format("woff2-variations"), url("/fonts/jetbrains-mono-latin-wght.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "JetBrains Mono"; font-style: normal; font-display: swap; font-weight: 100 800;
  src: url("/fonts/jetbrains-mono-latin-ext-wght.woff2") format("woff2-variations"), url("/fonts/jetbrains-mono-latin-ext-wght.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
/* Local fonts scaled to the web fonts' metrics: the swap barely moves the text. */
@font-face { font-family: "Inter Fallback"; src: local("Arial"), local("Helvetica"), local("Liberation Sans");
  size-adjust: 107.4%; ascent-override: 90.2%; descent-override: 22.48%; line-gap-override: 0%; }
@font-face { font-family: "JetBrains Mono Fallback"; src: local("Courier New"), local("Courier"), local("Liberation Mono");
  size-adjust: 100%; ascent-override: 102%; descent-override: 30%; line-gap-override: 0%; }

/* ---------- Tokens: dark (default) ---------- */
:root {
  color-scheme: dark;
  --sans: "Inter", "Inter Fallback", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", "JetBrains Mono Fallback", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  /* The italic accent line (was Playfair Display from Google Fonts; now a system serif). */
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;

  --bg: #04050A;
  --bg-2: #0B0E22;
  --bg-glass: rgba(4, 5, 10, 0.72);
  --surface: rgba(3, 4, 10, 0.62);
  --ink: #F5F7FA;
  --ink-strong: #FFFFFF;
  --muted: rgba(245, 247, 250, 0.72);
  --soft: rgba(245, 247, 250, 0.58);
  --gold: #F5C76A;          /* accent text and lines */
  --gold-soft: #FFE4A6;
  --gold-fill: #F5C76A;     /* filled buttons */
  --on-gold: #04050A;
  --amber: #FB923C;
  --violet: #A78BFA;
  --cyan: #67E8F9;
  --hair: rgba(245, 199, 106, 0.20);
  --hair-strong: rgba(245, 199, 106, 0.38);
  --tint: rgba(245, 199, 106, 0.07);
  --ok: #86EFAC;
  --scrim: rgba(4, 5, 10, 0.78);

  /* Logo (sigil gradient, core fill, glow) */
  --logo-1: #FFE9B8;
  --logo-2: #F5C76A;
  --logo-3: #FB923C;
  --logo-core: rgba(245, 199, 106, 0.22);
  --logo-node: #FFE4A6;
  --logo-glow: drop-shadow(0 0 6px rgba(245, 199, 106, 0.55));

  /* Background canvas (assets/hive-bg.js reads these as "r,g,b") */
  --hx-line: 245, 199, 106;
  --hx-node: 255, 228, 166;
  --hx-dust: 255, 255, 255;
  --hx-pulse: 255, 233, 184;
  --hx-fill: 245, 199, 106;
  --hx-alpha: 1;

  --page-grad: radial-gradient(ellipse at center, #0B0E22 0%, #04050A 78%);
  --star-1: rgba(255, 255, 255, 0.5);
  --star-2: rgba(245, 199, 106, 0.4);
  --star-3: rgba(167, 139, 250, 0.3);
  --grid-line: rgba(245, 199, 106, 0.03);
}

/* ---------- Tokens: light — same block twice (system setting without JS / chosen) ---------- */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #FBF8F1; --bg-2: #F3EBDB; --bg-glass: rgba(251, 248, 241, 0.82); --surface: rgba(255, 253, 248, 0.78);
    --ink: #14161F; --ink-strong: #04050A; --muted: rgba(20, 22, 31, 0.78); --soft: rgba(20, 22, 31, 0.66);
    --gold: #8A5A00; --gold-soft: #6E4700; --gold-fill: #F5C76A; --on-gold: #14161F; --amber: #B4530F;
    --violet: #6D28D9; --cyan: #0E7490;
    --hair: rgba(138, 90, 0, 0.22); --hair-strong: rgba(138, 90, 0, 0.42); --tint: rgba(245, 199, 106, 0.16);
    --ok: #166534; --scrim: rgba(251, 248, 241, 0.86);
    --logo-1: #E9A23B; --logo-2: #B7791F; --logo-3: #8A4B0F; --logo-core: rgba(245, 199, 106, 0.40); --logo-node: #8A5A00;
    --logo-glow: drop-shadow(0 0 3px rgba(183, 121, 31, 0.35));
    --hx-line: 176, 122, 18; --hx-node: 160, 104, 8; --hx-dust: 20, 22, 31; --hx-pulse: 214, 140, 20; --hx-fill: 245, 199, 106; --hx-alpha: 1.25;
    --page-grad: radial-gradient(ellipse at center, #FFFDF8 0%, #F3EBDB 82%);
    --star-1: rgba(20, 22, 31, 0.18); --star-2: rgba(176, 122, 18, 0.32); --star-3: rgba(109, 40, 217, 0.16);
    --grid-line: rgba(176, 122, 18, 0.06);
  }
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #FBF8F1; --bg-2: #F3EBDB; --bg-glass: rgba(251, 248, 241, 0.82); --surface: rgba(255, 253, 248, 0.78);
  --ink: #14161F; --ink-strong: #04050A; --muted: rgba(20, 22, 31, 0.78); --soft: rgba(20, 22, 31, 0.66);
  --gold: #8A5A00; --gold-soft: #6E4700; --gold-fill: #F5C76A; --on-gold: #14161F; --amber: #B4530F;
  --violet: #6D28D9; --cyan: #0E7490;
  --hair: rgba(138, 90, 0, 0.22); --hair-strong: rgba(138, 90, 0, 0.42); --tint: rgba(245, 199, 106, 0.16);
  --ok: #166534; --scrim: rgba(251, 248, 241, 0.86);
  --logo-1: #E9A23B; --logo-2: #B7791F; --logo-3: #8A4B0F; --logo-core: rgba(245, 199, 106, 0.40); --logo-node: #8A5A00;
  --logo-glow: drop-shadow(0 0 3px rgba(183, 121, 31, 0.35));
  --hx-line: 176, 122, 18; --hx-node: 160, 104, 8; --hx-dust: 20, 22, 31; --hx-pulse: 214, 140, 20; --hx-fill: 245, 199, 106; --hx-alpha: 1.25;
  --page-grad: radial-gradient(ellipse at center, #FFFDF8 0%, #F3EBDB 82%);
  --star-1: rgba(20, 22, 31, 0.18); --star-2: rgba(176, 122, 18, 0.32); --star-3: rgba(109, 40, 217, 0.16);
  --grid-line: rgba(176, 122, 18, 0.06);
}

/* ---------- Base ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; scroll-padding-top: 88px; -webkit-text-size-adjust: 100%; }
body { background: var(--page-grad); background-attachment: fixed; color: var(--ink); font-family: var(--sans); font-weight: 300; min-height: 100vh; overflow-x: hidden; }
a { color: inherit; }
img, svg { display: block; }
::selection { background: rgba(245, 199, 106, 0.35); color: var(--ink-strong); }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; padding: 10px 16px; background: var(--gold-fill); color: var(--on-gold); font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; text-decoration: none; }
.skip:focus { top: 12px; }
.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; }
.container { position: relative; z-index: 5; max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.mono { font-family: var(--mono); }
.gold { color: var(--gold); }

/* ---------- Background layers (home: canvas; other pages: stars + grid only) ---------- */
#scene { position: fixed; inset: 0; z-index: 1; width: 100%; height: 100%; pointer-events: none; }
.stars { position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0.6;
  background-image:
    radial-gradient(1px 1px at 20% 30%, var(--star-1), transparent),
    radial-gradient(1px 1px at 60% 70%, var(--star-1), transparent),
    radial-gradient(1px 1px at 80% 20%, var(--star-2), transparent),
    radial-gradient(2px 2px at 30% 80%, var(--star-2), transparent),
    radial-gradient(1px 1px at 90% 50%, var(--star-3), transparent),
    radial-gradient(1px 1px at 15% 65%, var(--star-1), transparent); }
.grid-overlay { position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0.6;
  background-image: linear-gradient(var(--grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 80px 80px;
  -webkit-mask-image: radial-gradient(ellipse at center, transparent 30%, black 90%);
  mask-image: radial-gradient(ellipse at center, transparent 30%, black 90%); }
.corner { position: fixed; width: 32px; height: 32px; border: 1px solid var(--hair-strong); z-index: 14; pointer-events: none; }
.corner.bl { bottom: 1.2rem; left: 1.2rem; border-right: 0; border-top: 0; }
.corner.br { bottom: 1.2rem; right: 1.2rem; border-left: 0; border-top: 0; }

/* ---------- Header (HUD bar) ---------- */
.topbar { position: sticky; top: 0; z-index: 30; border-bottom: 1px solid var(--hair); background: var(--bg-glass); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
.topbar .container { display: flex; align-items: center; gap: 10px 28px; flex-wrap: wrap; padding-top: 12px; padding-bottom: 12px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand .sigil { width: 40px; height: 40px; flex: none; filter: var(--logo-glow); }
/* Sigil: Praesepe honeycomb — core cell, six-cell ring, cluster nodes (docs/brand/owui/hive) */
.hv-s1 { stop-color: var(--logo-1); } .hv-s2 { stop-color: var(--logo-2); } .hv-s3 { stop-color: var(--logo-3); }
.hv-ring { fill: none; stroke: url(#hv-g); stroke-width: 1.8; stroke-linejoin: round; }
.hv-core { fill: var(--logo-core); stroke: url(#hv-g); stroke-width: 2.6; stroke-linejoin: round; }
.hv-nodes circle { fill: var(--logo-node); }
.hv-heart { fill: var(--logo-1); }
.wm { display: flex; flex-direction: column; line-height: 1; }
.wm-q { font-family: var(--sans); font-weight: 700; font-size: 0.98rem; letter-spacing: -0.01em; color: var(--ink-strong); }
.wm-h { margin-top: 5px; font-family: var(--mono); font-weight: 700; font-size: 0.7rem; letter-spacing: 0.44em; color: var(--gold); }
.topbar .nav { margin-left: auto; }
.nav { display: flex; align-items: center; gap: 6px 22px; flex-wrap: wrap; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.2em; text-transform: uppercase; }
.nav a { color: var(--muted); text-decoration: none; padding: 6px 0; border-bottom: 1px solid transparent; transition: color 0.2s, border-color 0.2s; }
.nav a:hover { color: var(--gold); border-bottom-color: var(--hair-strong); }
.nav a[aria-current="page"] { color: var(--gold); border-bottom-color: var(--gold); }
.nav .ext::after { content: " \2197"; letter-spacing: 0; }

/* Light | Dark — hidden when JavaScript is off (nothing would switch). */
.theme-switch { display: inline-flex; border: 1px solid var(--hair-strong); }
:root:not([data-theme]) .theme-switch { display: none; }
.theme-switch button { appearance: none; border: 0; background: transparent; color: var(--soft); font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.2em; text-transform: uppercase; padding: 7px 11px; cursor: pointer; }
.theme-switch button + button { border-left: 1px solid var(--hair-strong); }
.theme-switch button[aria-pressed="true"] { background: var(--gold-fill); color: var(--on-gold); font-weight: 600; }
.theme-switch button:hover:not([aria-pressed="true"]) { color: var(--ink); }

/* ---------- Buttons, chips ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 48px; padding: 14px 26px; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.26em; text-transform: uppercase; cursor: pointer; transition: background 0.25s, color 0.25s, box-shadow 0.25s, border-color 0.25s; border: 1px solid var(--gold); background: var(--tint); color: var(--gold); text-decoration: none; text-align: center; }
.btn:hover { background: var(--gold-fill); color: var(--on-gold); border-color: var(--gold-fill); box-shadow: 0 0 30px rgba(245, 199, 106, 0.35); }
.btn.primary { background: var(--gold-fill); border-color: var(--gold-fill); color: var(--on-gold); font-weight: 600; }
.btn.primary:hover { background: var(--ink-strong); border-color: var(--ink-strong); color: var(--bg); }
.btn.ghost { border-color: var(--hair-strong); color: var(--muted); background: transparent; }
.btn.ghost:hover { color: var(--ink); border-color: var(--ink); background: transparent; box-shadow: none; }
.ext-mark::after { content: " \2197"; letter-spacing: 0; }

.status { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.22em; text-transform: uppercase; padding: 4px 10px; border: 1px solid var(--hair-strong); color: var(--muted); white-space: nowrap; }
.status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; border: 1px solid currentColor; }
.status.live { color: var(--ok); border-color: currentColor; }
.status.live::before { background: currentColor; }
.status.beta { color: var(--gold); border-color: currentColor; }
.status.beta::before { background: linear-gradient(90deg, currentColor 50%, transparent 50%); }
.status.planned { color: var(--soft); }

/* ---------- Home: hero ---------- */
.hero { position: relative; min-height: calc(100vh - 66px); display: flex; align-items: center; justify-content: center; flex-direction: column; padding: 72px 0 64px; text-align: center; }
/* Readability: a soft scrim between the moving comb and the text. */
.hero::before { content: ""; position: absolute; inset: 4% 0; z-index: -1; pointer-events: none; background: radial-gradient(ellipse 52% 50% at 50% 54%, var(--scrim) 0%, transparent 72%); }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.3em; color: var(--gold); text-transform: uppercase; padding: 6px 14px; border: 1px solid var(--hair-strong); background: var(--tint); margin-bottom: 34px; }
.eyebrow::before { content: ""; width: 6px; height: 6px; background: var(--gold); box-shadow: 0 0 8px var(--gold); }
.hero h1 { font-family: var(--sans); font-weight: 200; font-size: clamp(4rem, 12vw, 9rem); line-height: 0.92; letter-spacing: 0.04em; margin-bottom: 20px;
  background: linear-gradient(180deg, var(--ink-strong) 0%, var(--gold-soft) 60%, var(--gold) 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: var(--gold); }
.hero .sub { font-family: var(--serif); font-style: italic; font-size: clamp(1.35rem, 2.6vw, 2rem); color: var(--muted); letter-spacing: 0.01em; margin-bottom: 24px; }
.chainline { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 8px 14px; font-family: var(--mono); font-size: clamp(0.78rem, 1.1vw, 0.98rem); letter-spacing: 0.26em; text-transform: uppercase; color: var(--gold-soft); }
.chainline .sep { color: var(--soft); letter-spacing: 0; }
.hero .lead { max-width: 660px; margin: 40px auto 0; font-size: 1.08rem; line-height: 1.85; color: var(--muted); font-weight: 400; }
.hero .lead strong { color: var(--ink); font-weight: 500; }
.hero-actions { margin-top: 40px; display: flex; gap: 14px 16px; flex-wrap: wrap; justify-content: center; }

/* Entrance (skipped with reduced motion) */
.rise { opacity: 0; animation: rise 1.2s ease-out forwards; }
.rise.d1 { animation-delay: 0.15s; } .rise.d2 { animation-delay: 0.35s; } .rise.d3 { animation-delay: 0.55s; } .rise.d4 { animation-delay: 0.75s; } .rise.d5 { animation-delay: 0.95s; }
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

/* ---------- Sections ---------- */
section.body { position: relative; padding: 120px 0; z-index: 6; background: var(--bg); }
section.body::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--hair-strong), transparent); }
.section-head { margin-bottom: 56px; }
.se { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.3em; color: var(--gold); text-transform: uppercase; margin-bottom: 18px; }
.section-head h2 { font-weight: 200; font-size: clamp(2rem, 4.5vw, 3.4rem); line-height: 1.06; max-width: 860px; }
.section-head h2 .accent { color: var(--gold); }
.section-head p { margin-top: 22px; max-width: 740px; font-size: 1.05rem; line-height: 1.75; color: var(--muted); }
.full-bleed { position: relative; z-index: 6; background: var(--bg); }

/* Chain: four stages with their real status */
.chain { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--hair); border: 1px solid var(--hair); }
.stage { background: var(--bg); padding: 34px 28px 30px; display: flex; flex-direction: column; gap: 16px; position: relative; overflow: hidden; }
.stage::before { content: ""; position: absolute; top: -40px; right: -40px; width: 180px; height: 180px; background: radial-gradient(circle, var(--tint), transparent 65%); pointer-events: none; }
.stage .top { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
.stage .num { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.3em; color: var(--gold); }
.stage h3 { font-weight: 200; font-size: 2rem; letter-spacing: 0.04em; line-height: 1; }
.stage p { font-size: 0.95rem; line-height: 1.7; color: var(--muted); }
.stage p strong { color: var(--ink); font-weight: 500; }
.stage .links { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--hair); display: flex; flex-direction: column; gap: 10px; }
.stage .links a { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold); text-decoration: none; }
.stage .links a:hover { color: var(--ink); }
.stage .links .note { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--soft); }
@media (max-width: 1080px) { .chain { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .chain { grid-template-columns: 1fr; } }

/* Principles (from the whitepaper) */
.pillars { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--hair); border: 1px solid var(--hair); }
.pillar-card { background: var(--bg); padding: 40px 34px; position: relative; overflow: hidden; }
.pillar-card::before { content: ""; position: absolute; top: 0; right: 0; width: 200px; height: 200px; background: radial-gradient(circle, var(--tint), transparent 65%); pointer-events: none; }
.pillar-card .num { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.3em; color: var(--gold); margin-bottom: 14px; }
.pillar-card h3 { font-weight: 200; font-size: 2.2rem; letter-spacing: 0.04em; line-height: 1; margin-bottom: 18px; }
.pillar-card .p { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.03em; line-height: 1.8; color: var(--muted); }
@media (max-width: 800px) { .pillars { grid-template-columns: 1fr; } }

/* Launch list (closed) */
.cta-section { padding: 120px 0; border-top: 1px solid var(--hair-strong); position: relative; z-index: 6; background: var(--bg); }
.cta-box { border: 1px solid var(--hair-strong); background: radial-gradient(circle at 20% 20%, var(--tint), transparent 42%), radial-gradient(circle at 80% 80%, rgba(124, 58, 237, 0.10), transparent 45%), var(--surface); padding: 60px; position: relative; overflow: hidden; }
.cta-box::before { content: "HIVE"; position: absolute; bottom: -50px; right: -20px; font-family: var(--sans); font-weight: 200; font-size: 16rem; letter-spacing: 0.05em; color: var(--hair); opacity: 0.35; pointer-events: none; line-height: 1; }
.cta-content { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items: start; }
.cta-content h2 { font-weight: 200; font-size: clamp(1.8rem, 3.2vw, 2.6rem); line-height: 1.1; margin-top: 14px; }
.cta-content .sub { margin-top: 20px; font-size: 1rem; line-height: 1.8; color: var(--muted); }
.closed-panel { border: 1px solid var(--hair-strong); background: var(--bg); padding: 28px; display: flex; flex-direction: column; gap: 16px; }
.closed-panel .row { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--soft); border-bottom: 1px solid var(--hair); padding-bottom: 12px; }
.closed-panel .row .v { color: var(--ink); }
.closed-panel p { font-size: 0.95rem; line-height: 1.7; color: var(--muted); }
.closed-panel .panel-actions { display: flex; flex-direction: column; gap: 12px; }
@media (max-width: 860px) { .cta-content { grid-template-columns: 1fr; gap: 30px; } .cta-box { padding: 30px 22px; } }

.btn-row { display: flex; gap: 14px 18px; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--hair); padding: 56px 0 36px; position: relative; z-index: 6; background: var(--bg); }
.foot-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px 40px; }
.foot-brand p { margin-top: 16px; max-width: 360px; font-size: 0.9rem; line-height: 1.7; color: var(--muted); }
.foot-col h2 { font-family: var(--mono); font-weight: 500; font-size: 0.62rem; letter-spacing: 0.3em; color: var(--gold); text-transform: uppercase; margin-bottom: 14px; }
.foot-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.foot-col a { font-size: 0.92rem; color: var(--muted); text-decoration: none; }
.foot-col a:hover { color: var(--gold); text-decoration: underline; text-underline-offset: 4px; }
.foot-base { margin-top: 44px; padding-top: 20px; border-top: 1px solid var(--hair); display: flex; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap; font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.2em; color: var(--soft); text-transform: uppercase; }
@media (max-width: 860px) { .foot-grid { grid-template-columns: 1fr 1fr; } .foot-brand { grid-column: 1 / -1; } }

/* ---------- Prose pages: whitepaper, privacy, terms, 404 ---------- */
.paper { position: relative; z-index: 5; max-width: 820px; margin: 0 auto; padding: 72px 24px 96px; }
.paper .eyebrow { margin-bottom: 26px; }
.paper .lede { font-size: 1.08rem; line-height: 1.8; color: var(--muted); margin-bottom: 30px; }
.paper .meta-line { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--soft); margin-bottom: 36px; }
.prose h1 { font-weight: 200; font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.08; letter-spacing: 0.01em; margin-bottom: 18px; }
.prose h2 { font-weight: 300; font-size: clamp(1.4rem, 2.6vw, 1.9rem); line-height: 1.2; margin: 40px 0 16px; }
.prose h3 { font-family: var(--mono); font-weight: 400; font-size: 0.78rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold-soft); margin: 34px 0 12px; }
.prose p, .prose li { font-size: 1.04rem; line-height: 1.85; color: var(--muted); }
.prose p { margin: 0 0 18px; }
.prose a { color: var(--gold); text-underline-offset: 3px; }
.prose a:hover { color: var(--ink); }
.prose strong { color: var(--ink); font-weight: 500; }
.prose em { font-family: var(--serif); font-style: italic; color: var(--gold-soft); }
.prose ul, .prose ol { margin: 0 0 18px; padding-left: 1.4em; }
.prose li { margin: 6px 0; }
.prose li::marker { color: var(--gold); }
.prose hr { border: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--hair-strong), transparent); margin: 44px 0; }
.prose code { font-family: var(--mono); font-size: 0.9em; color: var(--gold-soft); background: var(--tint); padding: 1px 6px; }
.prose pre { margin: 8px 0 28px; padding: 22px; overflow-x: auto; border: 1px solid var(--hair); background: var(--surface); }
/* The diagram uses box-drawing characters: a system monospace font draws them at the same width as letters. */
.prose pre code { background: none; padding: 0; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace; font-size: 0.8rem; line-height: 1.3; color: var(--ink); }
.prose blockquote { padding: 18px 24px; border-left: 2px solid var(--gold); background: var(--tint); margin: 0 0 18px; }
.prose blockquote p { margin: 0 0 8px; color: var(--ink); }
.prose blockquote p:last-child { margin: 0; color: var(--muted); font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.16em; }
.prose table { width: 100%; border-collapse: collapse; margin: 0 0 22px; font-size: 0.95rem; }
.prose th, .prose td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--hair); color: var(--muted); line-height: 1.6; }
.prose th { font-family: var(--mono); font-weight: 500; font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold); }
.notice { border: 1px solid var(--hair-strong); background: var(--tint); padding: 18px 22px; margin: 0 0 28px; font-size: 0.98rem; line-height: 1.75; color: var(--ink); }
.actions { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 56px; }
.big-404 { font-weight: 200; font-size: clamp(5rem, 18vw, 10rem); line-height: 0.9; color: var(--gold); letter-spacing: 0.04em; }

/* ---------- Mobile ---------- */
@media (max-width: 800px) {
  .container { padding: 0 16px; }
  .topbar .container { padding-top: 10px; padding-bottom: 10px; }
  .brand .sigil { width: 34px; height: 34px; }
  /* row 1: brand + Light | Dark; row 2: the links */
  .topbar .theme-switch { margin-left: auto; order: 2; }
  .topbar .nav { order: 3; width: 100%; margin-left: 0; gap: 2px 18px; font-size: 0.62rem; letter-spacing: 0.16em; }
  .hero { min-height: auto; padding: 56px 0 56px; }
  .hero .lead { font-size: 1rem; margin-top: 30px; }
  section.body, .cta-section { padding: 84px 0; }
  .stage { padding: 28px 22px; }
  .paper { padding: 48px 16px 72px; }
  .prose p, .prose li { font-size: 1rem; }
  .prose pre { padding: 14px; }
  .prose pre code { font-size: 0.6rem; }
  .corner { display: none; }
  .chainline { letter-spacing: 0.18em; gap: 6px 10px; }
  .hero-actions .btn, .btn-row .btn, .actions .btn { width: 100%; }
}
@media (max-width: 420px) {
  .foot-grid { grid-template-columns: 1fr; }
  .stage h3, .pillar-card h3 { font-size: 1.8rem; }
}

/* ---------- Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rise { opacity: 1; animation: none; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}
.tab-hidden * { animation-play-state: paused !important; }

/* ---------- Prose page extras ---------- */
.paper > .btn-row { margin: 0 0 44px; }
.notice a { color: var(--gold); text-underline-offset: 3px; }
.notice a:hover { color: var(--ink); }