/* Echoes of Time — global stylesheet */

:root {
  --bg-0: #131a2b;       /* deep navy base — not pure black */
  --bg-1: #1a2236;       /* card surface low */
  --bg-2: #222b42;       /* card surface high */
  --line: rgba(255, 255, 255, 0.09);
  --text: #e7ecf3;
  --text-dim: #9aa6b8;
  --text-faint: #6b7686;

  --forward: #ff6a3d;        /* red/orange — forward action */
  --forward-soft: #ff8a5b;
  --reverse: #4dd0ff;         /* blue/cyan — reverse time */
  --reverse-soft: #7fe0ff;
  --echo: #b9c7ff;            /* echo / past self */

  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  --mono: ui-monospace, "JetBrains Mono", "Fira Code", Consolas, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-0);
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(1200px 700px at 85% -5%, rgba(77, 208, 255, 0.12), transparent 60%),
    radial-gradient(1000px 600px at -10% 25%, rgba(255, 106, 61, 0.10), transparent 60%),
    radial-gradient(900px 600px at 50% 110%, rgba(125, 95, 255, 0.12), transparent 60%),
    radial-gradient(600px 400px at 20% 80%, rgba(77, 208, 255, 0.06), transparent 70%),
    linear-gradient(180deg, #131a2b 0%, #1a2340 50%, #131a2b 100%);
  background-attachment: fixed;
  position: relative;
}

/* layered decorative background — fixed, behind all content */
.bg-deco {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

/* fine timeline grid — radial-masked so it fades at the edges */
.bg-deco::before {
  content: "";
  position: absolute;
  inset: -10%;
  background-image:
    linear-gradient(rgba(180, 210, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(180, 210, 255, 0.035) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px;
  mask-image: radial-gradient(ellipse at 50% 35%, #000 25%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 35%, #000 25%, transparent 78%);
}

/* faint horizontal "timeline" lines drifting across the canvas */
.bg-deco::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(180deg, transparent 22%, rgba(77,208,255,0.10) 22.05%, transparent 22.4%),
    linear-gradient(180deg, transparent 58%, rgba(255,106,61,0.08) 58.05%, transparent 58.4%),
    linear-gradient(180deg, transparent 84%, rgba(185,199,255,0.06) 84.05%, transparent 84.4%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 15%, #000 85%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 15%, #000 85%, transparent 100%);
  animation: tl-drift 28s ease-in-out infinite alternate;
}

@keyframes tl-drift {
  0%   { transform: translateX(-1.5%); opacity: 0.85; }
  100% { transform: translateX(1.5%);  opacity: 1; }
}

/* faint vignette + ambient noise via repeating gradient (lightweight, no images) */
.bg-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse at center, transparent 55%, rgba(8, 12, 22, 0.55) 100%);
  mix-blend-mode: multiply;
}

.nav, main, header.hero, footer { position: relative; z-index: 1; }

a { color: var(--reverse-soft); text-decoration: none; }
a:hover { color: #fff; }

img { max-width: 100%; display: block; }

/* ---------- Top Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(19, 26, 43, 0.78);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-logo {
  font-family: var(--mono);
  font-weight: 600;
  letter-spacing: 0.04em;
  font-size: 15px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo .dot {
  display: inline-block;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--forward);
  box-shadow: 0 0 12px var(--forward), 0 0 0 4px rgba(255,106,61,0.15);
}

.nav-links {
  display: flex;
  gap: 4px;
  margin-left: auto;
  align-items: center;
}

.nav-links a {
  color: var(--text-dim);
  font-size: 14px;
  padding: 8px 14px;
  border-radius: 8px;
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: #fff; background: rgba(255,255,255,0.04); }
.nav-links a.active { color: #fff; background: rgba(77, 208, 255, 0.08); }

.nav-cta {
  margin-left: 8px;
  padding: 8px 14px;
  background: linear-gradient(135deg, var(--reverse), #6fdfff);
  color: #04161e !important;
  font-weight: 600;
  border-radius: 8px;
  font-size: 13px;
  letter-spacing: 0.02em;
  box-shadow: 0 0 0 1px rgba(77,208,255,0.25), 0 6px 18px rgba(77,208,255,0.15);
}
.nav-links a.nav-cta:hover,
.nav-cta:hover {
  background: linear-gradient(135deg, #65d8ff, #8be8ff);
  color: #04161e !important;
  box-shadow: 0 0 0 1px rgba(127,224,255,0.5), 0 8px 22px rgba(77,208,255,0.32);
  transform: translateY(-1px);
}

/* ---------- Layout ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 24px 96px;
}

.page-title {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.page-subtitle {
  color: var(--text-dim);
  font-size: 17px;
  margin: 0 0 48px;
  max-width: 720px;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--reverse);
  margin-bottom: 12px;
}

h2.section-title {
  font-size: 26px;
  margin: 56px 0 18px;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 12px;
}
h2.section-title::before {
  content: "";
  display: inline-block;
  width: 6px; height: 22px;
  background: linear-gradient(180deg, var(--forward), var(--reverse));
  border-radius: 2px;
}

p { line-height: 1.6; color: var(--text); }
p.dim { color: var(--text-dim); }

/* ---------- Cards ---------- */
.card {
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  position: relative;
  overflow: hidden;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.card:hover {
  border-color: rgba(77, 208, 255, 0.35);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  letter-spacing: -0.01em;
}
.card p { margin: 0; color: var(--text-dim); font-size: 14.5px; }

.grid {
  display: grid;
  gap: 18px;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ---------- Hero (homepage) ---------- */
.hero {
  position: relative;
  padding: 110px 24px 80px;
  text-align: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  pointer-events: none;
  opacity: 0.7;
}
.hero h1 {
  font-size: clamp(46px, 8vw, 96px);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin: 0 0 22px;
  line-height: 1.0;
  background: linear-gradient(180deg, #fff 30%, #b9c7ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .hook {
  font-size: clamp(18px, 2vw, 22px);
  color: var(--text-dim);
  max-width: 760px;
  margin: 0 auto 14px;
  line-height: 1.5;
}
.hero .hook strong { color: #fff; }
.hero .tagline {
  font-family: var(--mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--forward);
  margin-top: 28px;
}

.hero-actions {
  margin-top: 36px;
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 14.5px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.03);
  color: var(--text);
  cursor: pointer;
  transition: all .2s;
}
.btn:hover { background: rgba(255,255,255,0.07); border-color: rgba(255,255,255,0.2); color: #fff; }
.btn-primary {
  background: linear-gradient(135deg, var(--forward), #ff8e5e);
  border-color: transparent;
  color: #16110d;
  box-shadow: 0 6px 18px rgba(255,106,61,0.18);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #ff7d52, #ffa278);
  border-color: transparent;
  color: #16110d;
  box-shadow: 0 0 0 1px rgba(255,138,91,0.45), 0 10px 28px rgba(255,106,61,0.32);
  transform: translateY(-1px);
}
.btn-reverse {
  background: linear-gradient(135deg, var(--reverse), #6fdfff);
  border-color: transparent;
  color: #04161e;
  box-shadow: 0 6px 18px rgba(77,208,255,0.18);
}
.btn-reverse:hover {
  background: linear-gradient(135deg, #65d8ff, #8be8ff);
  border-color: transparent;
  color: #04161e;
  box-shadow: 0 0 0 1px rgba(127,224,255,0.45), 0 10px 28px rgba(77,208,255,0.32);
  transform: translateY(-1px);
}

/* ---------- Hero room SVG visual ---------- */
.hero-room {
  margin: 50px auto 0;
  max-width: 720px;
  width: 100%;
}

/* ---------- Entrance cards (homepage) ---------- */
.entrance-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 24px;
}
@media (max-width: 900px) { .entrance-grid { grid-template-columns: 1fr; } }

/* Concept strip on homepage */
.concept-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 64px auto 0;
  max-width: 980px;
}
@media (max-width: 800px) { .concept-strip { grid-template-columns: 1fr; } }
.concept-card {
  padding: 26px 22px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(34,43,66,0.7), rgba(26,34,54,0.7));
  border: 1px solid var(--line);
  text-align: center;
}
.concept-card .step {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--text-faint);
  margin-bottom: 10px;
}
.concept-card h3 {
  margin: 0 0 8px;
  font-size: 22px;
  letter-spacing: -0.01em;
}
.concept-card p { margin: 0; color: var(--text-dim); font-size: 14.5px; }
.concept-card.fwd  h3 { color: var(--forward-soft); }
.concept-card.rev  h3 { color: var(--reverse-soft); }
.concept-card.echo h3 { color: var(--echo); }

.entrance {
  display: block;
  padding: 22px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  color: var(--text);
  transition: transform .25s, border-color .25s;
  min-height: 170px;
}
.entrance::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(77, 208, 255, 0.08) 100%);
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}
.entrance:hover { transform: translateY(-3px); border-color: rgba(255,106,61,0.35); color: #fff; }
.entrance:hover::before { opacity: 1; }
.entrance:hover .entrance-num { color: var(--forward); }

/* echo afterimage on hover */
.entrance::after { content: none; }

.entrance-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-faint);
  letter-spacing: 0.18em;
  transition: color .3s;
}
.entrance h3 {
  font-size: 22px;
  margin: 6px 0 10px;
  letter-spacing: -0.01em;
}
.entrance p {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.5;
}

/* ---------- Iframe wrapper ---------- */
.embed-shell {
  width: min(100%, 1180px);
  margin: 0 auto;
}
.embed-wrap,
.iframe-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(77, 208, 255, 0.18);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.04) inset,
    0 30px 80px rgba(0,0,0,0.5),
    0 0 60px rgba(77, 208, 255, 0.08);
}
.embed-wrap iframe,
.iframe-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}
.embed-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background:
    radial-gradient(600px 300px at 50% 50%, rgba(77,208,255,0.14), transparent 60%),
    linear-gradient(180deg, #1a2236, #131a2b);
  text-align: center;
  padding: 24px;
}
.embed-placeholder p { color: var(--text-dim); margin: 0; max-width: 460px; }
.embed-fallback {
  margin-top: 18px;
  font-size: 13px;
  color: var(--text-faint);
}

/* ---------- Story page ---------- */
.placeholder-card {
  background: repeating-linear-gradient(
    135deg,
    rgba(77,208,255,0.04) 0 8px,
    rgba(77,208,255,0.0) 8px 16px
  ), var(--bg-1);
  border: 1px dashed rgba(77, 208, 255, 0.4);
  border-radius: var(--radius);
  padding: 28px;
  color: var(--text-dim);
  font-family: var(--mono);
  text-align: center;
}
.placeholder-card .ph-token {
  display: inline-block;
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--reverse-soft);
  background: rgba(77, 208, 255, 0.08);
  padding: 6px 12px;
  border-radius: 6px;
  margin-bottom: 12px;
}
.placeholder-card .ph-hint { font-family: var(--sans); font-size: 13px; color: var(--text-faint); }

.protagonist-row {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 20px;
  align-items: stretch;
}
@media (max-width: 800px) { .protagonist-row { grid-template-columns: 1fr; } }

.portrait-box {
  aspect-ratio: 3 / 4;
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.03) 0 10px, transparent 10px 20px),
    linear-gradient(180deg, #0e1622, #0a121b);
  border: 1px dashed rgba(255,255,255,0.18);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-faint);
  font-family: var(--mono);
  font-size: 13px;
  text-align: center;
  padding: 20px;
}

.proto-fields {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 18px;
  align-items: baseline;
}
.proto-fields dt {
  color: var(--text-faint);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.proto-fields dd {
  margin: 0;
  font-family: var(--mono);
  color: var(--reverse-soft);
}

.tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.tab-btn {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text-dim);
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 13px;
  cursor: pointer;
  transition: all .2s;
}
.tab-btn:hover { color: #fff; border-color: rgba(255,255,255,0.2); }
.tab-btn.active {
  color: #fff;
  background: rgba(77, 208, 255, 0.1);
  border-color: rgba(77, 208, 255, 0.45);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ---------- Mechanics page ---------- */
.movement-card .gif-box {
  aspect-ratio: 16 / 10;
  background:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.03) 0 1px, transparent 1px 18px),
    linear-gradient(135deg, #0e1622, #0a121b);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-faint);
  border: 1px dashed rgba(255,255,255,0.12);
  position: relative;
  overflow: hidden;
}

.controls-panel {
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 22px;
  font-family: var(--mono);
  font-size: 13.5px;
  color: var(--text-dim);
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 18px;
  align-items: baseline;
}
.controls-panel kbd {
  display: inline-block;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 2px 8px;
  margin: 0 2px;
  color: #fff;
  font-family: var(--mono);
  font-size: 12px;
}
.controls-panel .keys { color: #fff; }
.controls-panel .desc { color: var(--text-dim); }

/* ---------- Style page (visual switcher) ---------- */
.mock-area {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  padding: 36px;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: background .4s, border-color .4s;
  background: linear-gradient(135deg, #0c1118, #0a0e16);
}
.mock-area .mock-text {
  position: relative;
  z-index: 2;
  font-family: var(--mono);
  font-size: 16px;
  letter-spacing: 0.05em;
  color: var(--text);
  line-height: 1.6;
  max-width: 520px;
}
.mock-area .mock-overlay {
  position: absolute; inset: 0;
  pointer-events: none;
  transition: background .4s, opacity .4s;
}

.mock-area[data-mode="forward"] {
  border-color: rgba(255,106,61,0.5);
  background: radial-gradient(600px 300px at 30% 50%, rgba(255,106,61,0.18), transparent 60%), #0c1118;
}
.mock-area[data-mode="reverse"] {
  border-color: rgba(77,208,255,0.5);
  background: radial-gradient(600px 300px at 70% 50%, rgba(77,208,255,0.18), transparent 60%), #08111a;
}
.mock-area[data-mode="echo"] {
  border-color: rgba(185,199,255,0.45);
  background: radial-gradient(600px 300px at 50% 50%, rgba(185,199,255,0.12), transparent 60%), #0a0d18;
}
.mock-area[data-mode="timeline"] {
  border-color: rgba(255,255,255,0.2);
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 40px),
    #0a0e16;
}

/* ---------- Influence map ---------- */
.influence-map {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: auto auto auto;
  gap: 16px;
  align-items: center;
  padding: 24px 0;
}
@media (max-width: 800px) { .influence-map { grid-template-columns: 1fr; } }

.influence-center {
  grid-column: 2 / 3;
  grid-row: 2 / 3;
  text-align: center;
  padding: 24px;
  border-radius: 50%;
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(255,106,61,0.18), transparent 65%);
  border: 1px solid rgba(255,106,61,0.4);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: #fff;
  box-shadow: 0 0 30px rgba(255,106,61,0.15);
}
@media (max-width: 800px) { .influence-center { aspect-ratio: auto; padding: 30px; } }
.influence-node {
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
.influence-node h4 {
  margin: 0 0 6px;
  color: var(--reverse-soft);
  font-size: 15px;
}
.influence-node p { margin: 0; font-size: 13.5px; color: var(--text-dim); }

/* ---------- Branch map (Mechanics) ---------- */
.branch-map {
  margin: 28px auto 0;
  max-width: 820px;
  padding: 18px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(600px 220px at 50% 50%, rgba(77,208,255,0.06), transparent 70%),
    linear-gradient(180deg, rgba(34,43,66,0.5), rgba(26,34,54,0.5));
}
.branch-map svg { display: block; width: 100%; height: auto; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding: 28px 24px;
  text-align: center;
  color: var(--text-faint);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  margin-top: 60px;
}

/* ---------- Misc ---------- */
.kicker-row {
  display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px;
}
.chip {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  color: var(--text-dim);
}
.chip.fwd { color: var(--forward); border-color: rgba(255,106,61,0.4); }
.chip.rev { color: var(--reverse); border-color: rgba(77,208,255,0.4); }
.chip.echo { color: var(--echo); border-color: rgba(185,199,255,0.35); }

/* echo pulse keyframe */
@keyframes echoPulse {
  0%, 100% { opacity: 0.35; transform: translateX(0); }
  50% { opacity: 0.6; transform: translateX(2px); }
}
.echo-pulse { animation: echoPulse 2.4s ease-in-out infinite; }

/* =================================================================
   COMPACT SCALE — global ~75–80% of original sizes/spacing
   Adjusts the design for normal 100% browser zoom to feel
   like the previous 75% zoom view, without using zoom/scale hacks.
   ================================================================= */

/* Nav: a touch more present */
.nav-inner { padding: 13px 22px; gap: 22px; max-width: 1140px; }
.nav-logo  { font-size: 14px; }
.nav-logo .dot { width: 8px; height: 8px; box-shadow: 0 0 10px var(--forward), 0 0 0 3px rgba(255,106,61,0.15); }
.nav-links { gap: 4px; }
.nav-links a { font-size: 13px; padding: 8px 12px; }
.nav-cta   { font-size: 13.5px; padding: 8px 14px; }

/* Container: tighter rails */
.container { max-width: 1140px; padding: 36px 20px 64px; }

/* Page title block */
.page-title    { font-size: clamp(28px, 3.8vw, 42px); margin: 0 0 6px; }
.page-subtitle { font-size: 14px; margin: 0 0 30px; max-width: 640px; }
.eyebrow       { font-size: 10.5px; margin-bottom: 8px; letter-spacing: 0.18em; }

/* Section title */
h2.section-title { font-size: 19px; margin: 36px 0 12px; gap: 10px; }
h2.section-title::before { width: 4px; height: 16px; }

/* Body copy */
p { line-height: 1.55; }

/* Cards */
.card { padding: 16px; border-radius: 12px; }
.card h3 { font-size: 15.5px; margin: 0 0 6px; }
.card p  { font-size: 13px; }

/* Grid spacing */
.grid { gap: 14px; }

/* Hero (homepage) */
.hero { padding: 110px 20px 36px; min-height: 0; }
.hero h1     { font-size: clamp(36px, 6vw, 68px); margin: 0 0 18px; }
.hero .hook  { font-size: clamp(15px, 1.5vw, 18px); line-height: 1.5; margin: 0 auto 12px; max-width: 820px; }
.hero .tagline { font-size: 11px; margin-top: 22px; }
.hero-actions { margin-top: 28px; gap: 10px; }

/* Buttons */
.btn { padding: 9px 16px; font-size: 13px; border-radius: 8px; gap: 6px; }

/* Entrance cards (homepage) */
.entrance         { padding: 18px; min-height: 130px; border-radius: 12px; }
.entrance-num     { font-size: 11px; }
.entrance h3      { font-size: 18px; margin: 4px 0 6px; }
.entrance p       { font-size: 13px; line-height: 1.45; }
.entrance::after  { font-size: 14px; left: 18px; bottom: 14px; }
.entrance-grid    { gap: 14px; margin-top: 18px; }

/* Concept strip (homepage, currently unused but kept compact) */
.concept-strip { gap: 14px; margin: 44px auto 0; max-width: 880px; }
.concept-card  { padding: 20px 18px; border-radius: 12px; }
.concept-card h3 { font-size: 18px; }
.concept-card p  { font-size: 13px; }

/* Chips */
.chip { font-size: 10px; padding: 4px 9px; }

/* Embeds — keep iframe big, but tighten chrome */
.embed-shell { width: min(100%, 1100px); }
.embed-wrap, .iframe-frame { border-radius: 14px; }
.embed-placeholder p { font-size: 13.5px; }
.embed-fallback { font-size: 12px; margin-top: 14px; }

/* Controls panel (Demo) */
.controls-panel {
  padding: 14px 18px;
  font-size: 12.5px;
  gap: 6px 14px;
  border-radius: 12px;
}
.controls-panel kbd { font-size: 11px; padding: 1px 6px; }

/* Branch map (Mechanics) */
.branch-map { padding: 14px 18px; max-width: 760px; margin-top: 22px; border-radius: 12px; }

/* Branch diagram — clean SVG above the step cards */
.branch-diagram {
  margin: 32px auto 0;
  padding: 22px 26px 18px;
  max-width: 940px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background:
    radial-gradient(900px 320px at 50% 0%, rgba(255,138,91,0.07), transparent 70%),
    linear-gradient(180deg, rgba(34,43,66,0.55), rgba(26,34,54,0.55));
}
.branch-diagram svg {
  display: block;
  width: 100%;
  height: auto;
}
.branch-diagram figcaption {
  margin: 10px 4px 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.5;
}

/* Branch flow — three cards joined by a subtle timeline */
.branch-flow {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 32px 0 0;
  max-width: 940px;
}
.branch-flow-track {
  position: absolute;
  left: 8%;
  right: 8%;
  top: 24px;
  height: 1px;
  background: linear-gradient(
    90deg,
    rgba(255,106,61,0)    0%,
    rgba(255,106,61,0.55) 12%,
    rgba(255,138,91,0.65) 50%,
    rgba(77,208,255,0.7)  88%,
    rgba(77,208,255,0)   100%
  );
  pointer-events: none;
}
.branch-step {
  position: relative;
  padding: 40px 18px 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(34,43,66,0.6), rgba(26,34,54,0.6));
  text-align: center;
  transition: border-color .2s, transform .2s;
}
.branch-step:hover { transform: translateY(-2px); }
.branch-step-node {
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translate(-50%, 0);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text);
  box-shadow: 0 0 0 4px rgba(255,255,255,0.06);
}
.branch-step-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 6px;
}
.branch-step h3 {
  margin: 0 0 6px;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--text);
}
.branch-step p {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-dim);
  line-height: 1.5;
}
.branch-step--fwd    .branch-step-node { background: var(--forward);      box-shadow: 0 0 12px rgba(255,106,61,0.55), 0 0 0 4px rgba(255,106,61,0.12); }
.branch-step--commit .branch-step-node { background: var(--forward-soft); box-shadow: 0 0 12px rgba(255,138,91,0.55), 0 0 0 4px rgba(255,138,91,0.12); }
.branch-step--rev    .branch-step-node { background: var(--reverse);      box-shadow: 0 0 12px rgba(77,208,255,0.55),  0 0 0 4px rgba(77,208,255,0.12); }
.branch-step--fwd:hover    { border-color: rgba(255,106,61,0.45); }
.branch-step--commit:hover { border-color: rgba(255,138,91,0.45); }
.branch-step--rev:hover    { border-color: rgba(77,208,255,0.45); }

@media (max-width: 800px) {
  .branch-flow { grid-template-columns: 1fr; }
  .branch-flow-track { display: none; }
}

/* Story page placeholders */
.placeholder-card { padding: 22px; border-radius: 12px; }
.placeholder-card .ph-token { font-size: 12.5px; padding: 5px 10px; }
.placeholder-card .ph-hint  { font-size: 12px; }
.proto-fields  { gap: 6px 14px; }
.proto-fields dt { font-size: 11px; }
.portrait-box { font-size: 12px; }

/* Tabs */
.tab-btn { padding: 6px 13px; font-size: 12px; border-radius: 7px; }

/* Style page mock area (still present though hidden from nav) */
.mock-area { padding: 28px; min-height: 220px; border-radius: 12px; }
.mock-area .mock-text { font-size: 14px; }

/* Influence map (Background page, hidden from nav) */
.influence-node { padding: 14px; border-radius: 12px; }
.influence-node h4 { font-size: 13.5px; }
.influence-node p  { font-size: 12.5px; }
.influence-center { font-size: 13.5px; padding: 18px; }

/* Footer */
.footer { padding: 22px 20px; font-size: 11px; margin-top: 44px; }

/* Mobile: keep things readable; let clamps do their job */
@media (max-width: 700px) {
  .container { padding: 24px 16px 48px; }
  .hero { padding: 56px 16px 40px; }
  .nav-links a { padding: 6px 8px; }
}