/* ===== Attraction Lab · brand tokens ===== */
:root {
  --bg: #0a0814;
  --surface: #14111f;
  --surface-2: #1c1828;
  --line: #2a2538;
  --line-soft: #1d1929;
  --text: #f4ebe1;
  --muted: #9a8fa6;
  --dim: #5d556b;

  --amber: #ffb066;
  --amber-glow: rgba(255, 176, 102, 0.32);
  --rose: #ff5e8a;
  --rose-glow: rgba(255, 94, 138, 0.30);
  --voice: #5fdcff;
  --voice-glow: rgba(95, 220, 255, 0.28);
  --mystery: #a78cff;
  --mystery-glow: rgba(167, 140, 255, 0.30);
  --gold: #f5d76e;
  --gold-glow: rgba(245, 215, 110, 0.28);
  --crimson: #e94560;
  --emerald: #5fe3a1;

  --primary: var(--amber);
  --primary-glow: var(--amber-glow);

  --display: 'Bodoni Moda', 'Noto Serif SC', serif;
  --body: 'Outfit', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --cjk-display: 'Noto Serif SC', serif;
  --cjk-body: 'Noto Sans SC', sans-serif;
}

[data-theme="light"] {
  --bg: #fbf6ee;
  --surface: #ffffff;
  --surface-2: #f4ecdc;
  --line: #d8cdb6;
  --line-soft: #e6dec8;
  --text: #221a16;
  --muted: #6b5e54;
  --dim: #a3998c;

  --amber: #c8761c;
  --amber-glow: rgba(200, 118, 28, 0.16);
  --rose: #c33866;
  --voice: #1d8aa3;
  --mystery: #6b48d4;
  --gold: #b8862a;
  --crimson: #c0263e;

  --primary: var(--amber);
  --primary-glow: var(--amber-glow);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
  overflow-x: hidden;
}

html[data-lang="en"] [lang="zh"] { display: none; }
html[data-lang="zh"] [lang="en"] { display: none; }
html[data-lang="zh"] body { font-family: var(--cjk-body); }
html[data-lang="zh"] h1, html[data-lang="zh"] h2, html[data-lang="zh"] h3,
html[data-lang="zh"] .display { font-family: var(--cjk-display); }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--amber); }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.nav-inner {
  display: flex; align-items: center; gap: 28px;
  padding: 14px 24px; max-width: 1180px; margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--display); font-weight: 600; }
.brand-mark {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--amber) 0%, var(--rose) 60%, #6b1f3d 100%);
  box-shadow: 0 0 18px var(--amber-glow), inset 0 0 6px rgba(255,255,255,0.3);
}
.brand-name { font-size: 17px; letter-spacing: 0.02em; font-style: italic; }
.nav-links { display: flex; gap: 18px; margin-left: auto; font-size: 13px; color: var(--muted); }
.nav-links a:hover { color: var(--text); }
.nav-ctrl { display: flex; gap: 6px; }
.btn {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 7px 12px;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.btn:hover { color: var(--text); border-color: var(--amber); }

/* hero */
.hero { position: relative; padding: 100px 0 80px; overflow: hidden; }
.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(50% 35% at 25% 35%, var(--amber-glow), transparent 70%),
    radial-gradient(45% 30% at 80% 60%, var(--rose-glow), transparent 70%),
    radial-gradient(35% 25% at 50% 100%, var(--mystery-glow), transparent 70%);
  opacity: 0.55;
  filter: blur(50px);
  pointer-events: none;
}
[data-theme="light"] .hero::before { opacity: 0.22; }

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 880px) { .hero-grid { grid-template-columns: 1fr; gap: 40px; } }

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 22px;
}
h1.display {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.04;
  letter-spacing: -0.012em;
  margin: 0 0 22px;
}
h1.display em {
  font-style: italic;
  color: var(--amber);
  font-weight: 500;
}
.lede { font-size: 17px; color: var(--muted); max-width: 56ch; margin: 0 0 28px; }
.tags { display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 5px 10px;
  border-radius: 100px;
}

.aura-viz { position: relative; aspect-ratio: 1 / 1; max-width: 500px; margin: 0 auto; }
.aura-viz svg { width: 100%; height: 100%; }

/* sections */
section { padding: 80px 0; border-top: 1px solid var(--line-soft); position: relative; }
.sec-head { margin-bottom: 44px; }
.sec-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
  text-transform: uppercase;
  margin-bottom: 14px;
}
h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
  max-width: 22ch;
}
h2 em { font-style: italic; color: var(--amber); font-weight: 500; }
.sec-lede { color: var(--muted); max-width: 66ch; font-size: 16px; }

/* grid */
.grid { display: grid; gap: 18px; }
.grid.c2 { grid-template-columns: repeat(2, 1fr); }
.grid.c3 { grid-template-columns: repeat(3, 1fr); }
.grid.c4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 880px) {
  .grid.c2, .grid.c3, .grid.c4 { grid-template-columns: 1fr; }
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.card:hover { border-color: var(--amber); transform: translateY(-2px); }
.card.glow-amber { border-left: 3px solid var(--amber); }
.card.glow-rose  { border-left: 3px solid var(--rose); }
.card.glow-voice { border-left: 3px solid var(--voice); }
.card.glow-mystery { border-left: 3px solid var(--mystery); }
.card.glow-gold  { border-left: 3px solid var(--gold); }
.card.glow-crimson { border-left: 3px solid var(--crimson); }
.card.glow-emerald { border-left: 3px solid var(--emerald); }

.card-tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
.card h3 {
  font-family: var(--display);
  font-weight: 500;
  font-style: italic;
  font-size: 22px;
  margin: 0 0 12px;
  line-height: 1.2;
}
.card p { color: var(--muted); font-size: 14px; margin: 0 0 8px; }
.card .meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
  margin-top: 14px;
  border-top: 1px dashed var(--line);
  padding-top: 12px;
}

/* aura wheel */
.aura-wrap {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
@media (max-width: 880px) { .aura-wrap { grid-template-columns: 1fr; } }
.aura-wrap svg { width: 100%; height: auto; max-width: 480px; margin: 0 auto; display: block; }

.aura-controls { display: grid; gap: 12px; }
.aura-controls label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
}
.aura-controls input[type=range] { width: 100%; accent-color: var(--amber); }

/* voice lab */
.voice-lab, .eye-lab {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px;
}
.voice-lab .slider-row, .eye-lab .slider-row {
  display: grid; gap: 8px;
  margin: 16px 0;
}
.voice-lab label, .eye-lab label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
  display: flex; justify-content: space-between;
}
.voice-lab input[type=range], .eye-lab input[type=range] { width: 100%; accent-color: var(--voice); }
.eye-lab input[type=range] { accent-color: var(--emerald); }
.lab-out {
  margin-top: 22px;
  padding: 18px 20px;
  background: var(--surface-2);
  border-left: 3px solid var(--amber);
  border-radius: 6px;
  font-size: 14.5px;
  color: var(--text);
  line-height: 1.65;
}
.lab-out strong { color: var(--amber); font-family: var(--display); font-style: italic; }

/* mirror / aura reader */
.mirror-wrap {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px;
}
.prompt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}
.prompt-btn {
  background: var(--surface-2);
  border: 1px solid var(--line);
  color: var(--text);
  text-align: left;
  padding: 14px 16px;
  border-radius: 10px;
  cursor: pointer;
  font-family: var(--body);
  font-size: 13px;
  transition: all 0.18s ease;
}
.prompt-btn:hover { border-color: var(--amber); transform: translateY(-1px); }
.prompt-btn .pt-tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--amber);
  text-transform: uppercase;
  display: block;
  margin-bottom: 6px;
}
.prompt-btn strong { font-family: var(--display); font-style: italic; font-size: 15px; }
.mirror-input { display: flex; gap: 10px; margin-bottom: 16px; }
.mirror-input textarea {
  flex: 1;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  font-family: var(--body);
  font-size: 14px;
  color: var(--text);
  resize: vertical;
  min-height: 70px;
}
.mirror-input textarea:focus { outline: none; border-color: var(--amber); }
.mirror-input button {
  background: var(--amber);
  color: #1a1208;
  border: 0;
  border-radius: 8px;
  padding: 0 26px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  cursor: pointer;
  font-weight: 600;
}
.mirror-out {
  background: var(--surface-2);
  border-left: 3px solid var(--amber);
  border-radius: 6px;
  padding: 22px 24px;
  font-size: 15px;
  line-height: 1.7;
  white-space: pre-wrap;
  min-height: 80px;
  color: var(--text);
}
.mirror-out:empty::before {
  content: 'Pick a probe above or describe what you want to know.';
  color: var(--dim);
  font-style: italic;
}
html[data-lang="zh"] .mirror-out:empty::before { content: '从上方选择一个探针，或描述你想知道的事。'; }

/* flirt taxonomy table */
.flirt-table {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
  overflow-x: auto;
}
.flirt-table table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.flirt-table th, .flirt-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
}
.flirt-table th {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.flirt-table td:first-child {
  font-family: var(--display);
  font-style: italic;
  font-size: 16px;
  color: var(--amber);
  width: 22%;
}
.flirt-table td:nth-child(2) { width: 38%; }

/* guardrails */
.rails {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--crimson);
  border-radius: 14px;
  padding: 26px 28px;
}
.rails h3 {
  font-family: var(--display);
  font-style: italic;
  margin: 0 0 14px;
  font-size: 22px;
  color: var(--crimson);
}
.rails ul { margin: 0; padding-left: 20px; color: var(--muted); font-size: 14.5px; }
.rails li { margin-bottom: 10px; }

footer {
  border-top: 1px solid var(--line-soft);
  padding: 40px 24px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}
footer a { color: var(--muted); border-bottom: 1px dotted var(--line); }
footer a:hover { color: var(--amber); }