/* Cartesia — Real-Time Speech AI Landing Page */
:root {
  --bg: #0a0a0a;
  --bg-2: #111111;
  --bg-3: #161616;
  --panel: #0f0f0f;
  --line: rgba(255,255,255,.07);
  --line-2: rgba(255,255,255,.13);
  --line-3: rgba(255,255,255,.22);
  --ink: #ffffff;
  --ink-2: #a1a1aa;
  --muted: #52525b;
  --dim: #3f3f46;
  --purple: #8b5cf6;
  --purple-light: #a78bfa;
  --purple-dark: #7c3aed;
  --purple-glow: rgba(139,92,246,.35);
  --serif: 'Inter', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; font-family: var(--serif); background: var(--bg);
  color: var(--ink); line-height: 1.6; -webkit-font-smoothing: antialiased;
  overflow-x: hidden; letter-spacing: -.01em;
}
h1,h2,h3,h4 { margin: 0; font-weight: 700; line-height: 1; letter-spacing: -.03em; }
p { margin: 0; color: var(--ink-2); }
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 48px; }

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 999px; font-weight: 600;
  font-size: .95rem; cursor: pointer; transition: all .22s;
  border: 1.5px solid transparent; font-family: inherit; letter-spacing: -.01em;
}
.btn-primary {
  background: var(--purple); color: #fff;
  box-shadow: 0 0 36px -4px var(--purple-glow);
}
.btn-primary:hover { background: var(--purple-light); box-shadow: 0 0 56px -2px var(--purple-glow); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-2); }
.btn-ghost:hover { background: rgba(255,255,255,.05); border-color: var(--line-3); }
.btn-primary-sm {
  display: inline-flex; align-items: center; padding: 9px 20px; border-radius: 999px;
  font-weight: 600; font-size: .85rem; background: var(--purple); color: #fff;
  box-shadow: 0 0 20px -4px var(--purple-glow); transition: all .2s;
}
.btn-primary-sm:hover { background: var(--purple-light); transform: translateY(-1px); }
.btn-ghost-sm {
  display: inline-flex; align-items: center; padding: 9px 18px; border-radius: 999px;
  font-size: .85rem; font-weight: 500; color: var(--ink-2); border: 1.5px solid var(--line-2);
  transition: all .2s;
}
.btn-ghost-sm:hover { color: var(--ink); border-color: var(--line-3); }

/* NAV */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 20px 48px; background: transparent; transition: background .3s, padding .3s, border .3s;
}
.nav.scrolled {
  background: rgba(10,10,10,.8); backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px); padding: 12px 48px;
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--purple); font-weight: 700; }
.brand-text { color: var(--ink); font-size: 1.15rem; font-weight: 700; letter-spacing: -.04em; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--ink-2); font-size: .88rem; font-weight: 500; transition: color .15s; }
.nav-links a:hover { color: var(--ink); }
.nav-ctas { display: flex; align-items: center; gap: 10px; }
.nav-burger { display: none; background: none; border: 0; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; }
.nav-burger span { width: 22px; height: 1.5px; background: var(--ink); border-radius: 2px; display: block; transition: all .2s; }

/* HERO */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  overflow: hidden; isolation: isolate;
  background: radial-gradient(ellipse at 60% 40%, rgba(139,92,246,.12) 0%, transparent 60%),
              radial-gradient(ellipse at 20% 80%, rgba(124,58,237,.06) 0%, transparent 50%),
              var(--bg);
}
.hero-wave-bg { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; object-fit: cover; }
.wave-path { animation: waveDrift 8s ease-in-out infinite; }
.wave-1 { animation-duration: 8s; }
.wave-2 { animation-duration: 10s; animation-delay: -3s; }
.wave-3 { animation-duration: 12s; animation-delay: -6s; }
@keyframes waveDrift {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}
.hero-inner {
  position: relative; z-index: 1; max-width: 1280px; margin: 0 auto; padding: 140px 48px 80px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; width: 100%;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px; font-size: .78rem; font-weight: 500;
  letter-spacing: .08em; color: var(--purple-light); text-transform: uppercase;
  margin-bottom: 28px; border: 1px solid rgba(139,92,246,.25); padding: 8px 14px;
  border-radius: 999px; background: rgba(139,92,246,.07);
}
.eyebrow-dot { width: 6px; height: 6px; background: var(--purple); border-radius: 50%; box-shadow: 0 0 8px var(--purple); animation: blink 2s infinite; flex-shrink: 0; }
@keyframes blink { 0%,100% { opacity:1; } 50% { opacity:.3; } }
.hero-h1 { font-size: clamp(3rem, 6.5vw, 5.5rem); font-weight: 800; line-height: 1.02; letter-spacing: -.04em; margin-bottom: 24px; }
.grad { background: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 50%, #c4b5fd 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { font-size: 1.08rem; color: var(--ink-2); line-height: 1.7; max-width: 520px; margin-bottom: 36px; }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: flex; gap: 14px; }
.stat-card {
  display: flex; align-items: center; gap: 12px; background: rgba(255,255,255,.04);
  border: 1px solid var(--line-2); border-radius: 12px; padding: 14px 18px;
  backdrop-filter: blur(10px); transition: border-color .2s, transform .2s;
}
.stat-card:hover { border-color: rgba(139,92,246,.35); transform: translateY(-2px); }
.stat-icon { font-size: 1.2rem; }
.stat-val { font-size: 1.3rem; font-weight: 800; letter-spacing: -.03em; color: var(--ink); }
.stat-label { font-size: .75rem; color: var(--muted); font-weight: 500; margin-top: 1px; }

/* AUDIO DEMO CARD */
.hero-demo { display: flex; align-items: center; justify-content: center; }
.demo-card {
  background: rgba(17,17,17,.9); border: 1px solid rgba(139,92,246,.3);
  border-radius: 20px; padding: 28px; width: 100%; max-width: 420px;
  box-shadow: 0 0 60px -10px rgba(139,92,246,.3), 0 24px 48px -12px rgba(0,0,0,.6);
  backdrop-filter: blur(20px);
}
.demo-header { margin-bottom: 20px; }
.demo-title-row { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.demo-product { font-weight: 700; font-size: .95rem; color: var(--purple-light); }
.demo-file { font-size: .8rem; color: var(--muted); font-weight: 400; }
.demo-badges { display: flex; gap: 8px; }
.badge { font-size: .72rem; font-weight: 600; padding: 4px 10px; border-radius: 999px; letter-spacing: .02em; }
.badge-latency { background: rgba(139,92,246,.15); color: var(--purple-light); border: 1px solid rgba(139,92,246,.25); }
.badge-lang { background: rgba(255,255,255,.06); color: var(--ink-2); border: 1px solid var(--line); }
.badge-live { background: rgba(52,211,153,.1); color: #34d399; border: 1px solid rgba(52,211,153,.2); }
.demo-waveform { margin-bottom: 20px; }
.wv-bars { display: flex; align-items: center; gap: 3px; height: 60px; margin-bottom: 10px; }
.wv-bar {
  flex: 1; border-radius: 3px; background: linear-gradient(to top, var(--purple-dark), var(--purple-light));
  height: var(--h, 40%); transition: height .3s ease;
  animation: barPulse 1.2s ease-in-out infinite;
  animation-delay: calc(var(--i, 0) * 0.05s);
}
.wv-bar:nth-child(1){animation-delay:0s} .wv-bar:nth-child(2){animation-delay:.05s} .wv-bar:nth-child(3){animation-delay:.1s} .wv-bar:nth-child(4){animation-delay:.15s} .wv-bar:nth-child(5){animation-delay:.2s} .wv-bar:nth-child(6){animation-delay:.25s} .wv-bar:nth-child(7){animation-delay:.3s} .wv-bar:nth-child(8){animation-delay:.35s} .wv-bar:nth-child(9){animation-delay:.4s} .wv-bar:nth-child(10){animation-delay:.45s} .wv-bar:nth-child(11){animation-delay:.5s} .wv-bar:nth-child(12){animation-delay:.55s} .wv-bar:nth-child(13){animation-delay:.6s} .wv-bar:nth-child(14){animation-delay:.65s} .wv-bar:nth-child(15){animation-delay:.7s} .wv-bar:nth-child(16){animation-delay:.75s} .wv-bar:nth-child(17){animation-delay:.8s} .wv-bar:nth-child(18){animation-delay:.85s} .wv-bar:nth-child(19){animation-delay:.9s} .wv-bar:nth-child(20){animation-delay:.95s} .wv-bar:nth-child(21){animation-delay:1s} .wv-bar:nth-child(22){animation-delay:1.05s} .wv-bar:nth-child(23){animation-delay:1.1s} .wv-bar:nth-child(24){animation-delay:1.15s} .wv-bar:nth-child(25){animation-delay:0s} .wv-bar:nth-child(26){animation-delay:.05s} .wv-bar:nth-child(27){animation-delay:.1s} .wv-bar:nth-child(28){animation-delay:.15s} .wv-bar:nth-child(29){animation-delay:.2s} .wv-bar:nth-child(30){animation-delay:.25s} .wv-bar:nth-child(31){animation-delay:.3s} .wv-bar:nth-child(32){animation-delay:.35s}
@keyframes barPulse {
  0%, 100% { transform: scaleY(1); opacity: .7; }
  50% { transform: scaleY(1.5); opacity: 1; }
}
.demo-timeline { display: flex; align-items: center; gap: 10px; }
.demo-current, .demo-total { font-size: .75rem; color: var(--muted); font-weight: 500; min-width: 30px; }
.demo-progress { flex: 1; height: 3px; background: var(--line-2); border-radius: 2px; overflow: hidden; }
.demo-fill { height: 100%; background: linear-gradient(90deg, var(--purple), var(--purple-light)); border-radius: 2px; transition: width .3s; }
.demo-controls { display: flex; align-items: center; gap: 16px; }
.play-btn {
  width: 44px; height: 44px; border-radius: 50%; background: var(--purple);
  border: none; color: #fff; cursor: pointer; display: flex; align-items: center;
  justify-content: center; flex-shrink: 0; transition: all .2s;
  box-shadow: 0 0 20px -4px var(--purple-glow);
}
.play-btn:hover { background: var(--purple-light); transform: scale(1.08); }
.demo-meta-info { display: flex; flex-direction: column; gap: 2px; font-size: .8rem; }
.demo-meta-info span:first-child { color: var(--ink-2); }
.demo-status { color: #34d399; font-weight: 600; }

/* PRODUCTS STRIP */
.products-strip {
  background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 0;
}
.product-pills { display: flex; }
.product-pill {
  flex: 1; display: flex; align-items: center; gap: 12px; padding: 28px 40px;
  border-right: 1px solid var(--line); transition: background .2s, color .2s;
  cursor: pointer; position: relative;
}
.product-pill:last-child { border-right: 0; }
.product-pill::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
  background: var(--purple); transform: scaleX(0); transition: transform .3s;
}
.product-pill:hover::after, .active-pill::after { transform: scaleX(1); }
.product-pill:hover { background: rgba(139,92,246,.05); }
.pill-emoji { font-size: 1.4rem; }
.pill-name { font-size: 1.1rem; font-weight: 700; color: var(--ink); }
.pill-desc { font-size: .85rem; color: var(--muted); margin-left: 4px; }
.active-pill { background: rgba(139,92,246,.06); }
.active-pill .pill-name { color: var(--purple-light); }

/* FEATURE SECTIONS */
.feature-section { padding: 120px 0; background: var(--bg); position: relative; }
.feature-section:nth-child(even) { background: var(--bg-2); }
.feat-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.feat-reversed .feat-inner { }
.feat-tag {
  font-size: .72rem; font-weight: 700; letter-spacing: .14em; color: var(--purple-light);
  text-transform: uppercase; margin-bottom: 16px; display: inline-flex; align-items: center; gap: 8px;
}
.feat-tag::before { content: ''; width: 20px; height: 1.5px; background: var(--purple); }
.feat-h2 { font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 800; letter-spacing: -.04em; line-height: 1.06; margin-bottom: 20px; color: var(--ink); }
.feat-sub { font-size: 1.05rem; color: var(--ink-2); line-height: 1.72; margin-bottom: 36px; }
.feat-bullets { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0; }
.feat-bullets li { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); align-items: flex-start; }
.feat-bullets li:last-child { border-bottom: 0; }
.bullet-icon { font-size: 1.2rem; flex-shrink: 0; margin-top: 1px; }
.feat-bullets strong { display: block; font-size: .98rem; font-weight: 600; color: var(--ink); margin-bottom: 4px; }
.feat-bullets p { font-size: .88rem; color: var(--ink-2); line-height: 1.6; }

/* VIS CARD */
.vis-card {
  background: var(--bg-3); border: 1px solid rgba(139,92,246,.2); border-radius: 16px;
  padding: 24px; box-shadow: 0 0 60px -20px rgba(139,92,246,.2), 0 24px 48px -12px rgba(0,0,0,.4);
  transition: border-color .3s, box-shadow .3s;
}
.vis-card:hover { border-color: rgba(139,92,246,.4); box-shadow: 0 0 80px -15px rgba(139,92,246,.3), 0 24px 48px -12px rgba(0,0,0,.4); }
.vis-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.vis-label { font-size: .8rem; font-weight: 600; color: var(--ink-2); }
.lang-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.lang-chip {
  padding: 5px 12px; border-radius: 999px; font-size: .78rem; font-weight: 600;
  background: rgba(255,255,255,.05); border: 1px solid var(--line-2); color: var(--ink-2);
  transition: all .15s;
}
.lang-chip:hover { border-color: rgba(139,92,246,.4); color: var(--purple-light); }
.lang-chip-more { background: rgba(139,92,246,.1); border-color: rgba(139,92,246,.3); color: var(--purple-light); }
.vis-mini-wave { padding: 10px 0 4px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 0 -4px 16px; }
.vis-metric-row { display: flex; gap: 0; }
.vis-metric { flex: 1; text-align: center; padding: 14px 0; border-right: 1px solid var(--line); }
.vis-metric:last-child { border-right: 0; }
.vm-val { font-size: 1.4rem; font-weight: 800; color: var(--purple-light); letter-spacing: -.03em; }
.vm-lab { font-size: .72rem; color: var(--muted); margin-top: 2px; font-weight: 500; }

/* TRANSCRIPT DEMO */
.transcript-demo { background: var(--bg); border-radius: 10px; padding: 16px 20px; margin-bottom: 18px; border: 1px solid var(--line); }
.td-line { margin-bottom: 6px; line-height: 1.8; }
.td-word { font-size: .95rem; font-weight: 500; color: var(--ink); }
.td-word.done { color: var(--ink); }
.typing::after { content: '|'; color: var(--purple); animation: blink .8s infinite; }
.ink-metrics { display: flex; flex-direction: column; gap: 10px; }
.ink-metric { display: flex; align-items: center; gap: 10px; font-size: .88rem; color: var(--ink-2); }
.im-icon { font-size: 1rem; }
.ink-metric strong { color: var(--purple-light); }

/* LINE DASHBOARD */
.line-dashboard { display: flex; flex-direction: column; gap: 0; margin-bottom: 18px; }
.ld-row { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: .88rem; }
.ld-row:last-child { border-bottom: 0; }
.ld-label { color: var(--ink-2); }
.ld-val { font-weight: 700; color: var(--ink); font-size: .92rem; }
.ld-green { color: #34d399; }
.ld-bar-chart { display: flex; align-items: flex-end; gap: 4px; height: 50px; margin-bottom: 6px; padding: 0 2px; }
.ld-bar { flex: 1; height: var(--bh, 50%); background: linear-gradient(to top, var(--purple-dark), var(--purple-light)); border-radius: 3px 3px 0 0; opacity: .7; transition: opacity .2s; }
.ld-bar:hover { opacity: 1; }
.ld-chart-label { font-size: .72rem; color: var(--muted); text-align: center; }

/* TECHNOLOGY */
.tech-section { padding: 120px 0; background: var(--bg-2); }
.tech-head { margin-bottom: 64px; }
.tech-head .feat-sub { max-width: 540px; }
.tech-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.tech-card {
  background: var(--bg); border: 1px solid var(--line); border-radius: 16px; padding: 36px;
  transition: all .3s; position: relative; overflow: hidden;
}
.tech-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--purple), transparent);
  opacity: 0; transition: opacity .3s;
}
.tech-card:hover { border-color: rgba(139,92,246,.3); transform: translateY(-4px); box-shadow: 0 20px 40px -12px rgba(0,0,0,.4), 0 0 40px -15px rgba(139,92,246,.2); }
.tech-card:hover::before { opacity: 1; }
.tech-icon { font-size: 2rem; margin-bottom: 20px; }
.tech-card h3 { font-size: 1.15rem; font-weight: 700; color: var(--ink); margin-bottom: 14px; letter-spacing: -.02em; }
.tech-card p { font-size: .9rem; color: var(--ink-2); line-height: 1.68; margin-bottom: 18px; }
.tech-tag-line { font-size: .75rem; color: var(--purple-light); font-weight: 600; letter-spacing: .04em; }

/* USE CASES */
.usecases-section { padding: 120px 0; background: var(--bg); }
.usecase-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; margin-top: 48px; }
.usecase-card {
  display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 28px 16px;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 14px; font-size: .88rem;
  font-weight: 600; color: var(--ink-2); transition: all .22s; text-align: center; cursor: default;
}
.usecase-card:hover { border-color: rgba(139,92,246,.35); color: var(--ink); background: rgba(139,92,246,.06); transform: translateY(-3px); box-shadow: 0 12px 28px -8px rgba(0,0,0,.3); }
.uc-emoji { font-size: 1.8rem; }

/* TRUST */
.trust-section { padding: 120px 0; background: var(--bg-2); }
.trust-inner {
  max-width: 860px; margin: 0 auto; text-align: center; position: relative;
  padding: 56px; background: var(--bg); border: 1px solid rgba(139,92,246,.15); border-radius: 24px;
  box-shadow: 0 0 80px -20px rgba(139,92,246,.15);
}
.trust-quote-mark { font-size: 6rem; font-weight: 800; color: rgba(139,92,246,.2); line-height: 1; margin-bottom: -20px; font-family: Georgia, serif; }
.trust-quote { font-size: clamp(1.2rem, 2.2vw, 1.6rem); font-weight: 400; color: var(--ink); line-height: 1.55; letter-spacing: -.02em; margin: 0 0 32px; font-style: italic; }
.trust-footer { display: flex; align-items: center; justify-content: center; gap: 14px; }
.trust-avatar { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--purple), var(--purple-light)); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: .85rem; color: #fff; flex-shrink: 0; }
.trust-name { font-weight: 700; font-size: .95rem; color: var(--ink); }
.trust-role { font-size: .82rem; color: var(--muted); margin-top: 1px; }

/* METRICS STRIP */
.metrics-strip {
  padding: 72px 0;
  background: linear-gradient(135deg, #1a0a2e 0%, #160a28 30%, #1e0d38 60%, #120824 100%);
  border-top: 1px solid rgba(139,92,246,.2); border-bottom: 1px solid rgba(139,92,246,.2);
  position: relative; overflow: hidden;
}
.metrics-strip::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(139,92,246,.2) 0%, transparent 60%);
  pointer-events: none;
}
.metrics-inner { display: flex; align-items: center; justify-content: space-around; position: relative; }
.metric { text-align: center; }
.metric-val { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 800; color: var(--ink); letter-spacing: -.05em; line-height: 1; margin-bottom: 8px; }
.metric-label { font-size: .82rem; font-weight: 500; color: rgba(167,139,250,.7); letter-spacing: .04em; text-transform: uppercase; }
.metric-divider { width: 1px; height: 60px; background: rgba(139,92,246,.2); }

/* CONTACT */
.contact-section { padding: 120px 0; background: var(--bg); position: relative; overflow: hidden; }
.contact-section::before {
  content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 1000px; height: 500px; background: radial-gradient(ellipse, rgba(139,92,246,.07), transparent 70%);
  pointer-events: none;
}
.contact-head { margin-bottom: 56px; }
.contact-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2px; background: var(--line); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.contact-card {
  display: flex; flex-direction: column; gap: 10px; padding: 36px; background: var(--bg-2);
  transition: background .2s; min-height: 200px; justify-content: space-between;
}
.contact-primary {
  background: linear-gradient(135deg, rgba(139,92,246,.08) 0%, var(--bg-2) 60%);
  cursor: pointer;
}
.contact-primary:hover { background: linear-gradient(135deg, rgba(139,92,246,.15) 0%, var(--bg-2) 70%); }
.cc-icon { font-size: 1.5rem; }
.cc-label { font-size: .72rem; font-weight: 700; letter-spacing: .12em; color: var(--muted); text-transform: uppercase; }
.cc-val { font-size: 1.5rem; font-weight: 700; color: var(--ink); letter-spacing: -.02em; line-height: 1.2; word-break: break-all; }
.cc-at { color: var(--purple); }
.cc-hint { font-size: .78rem; color: var(--purple-light); font-weight: 600; letter-spacing: .04em; }
.cc-sub { font-size: .82rem; color: var(--muted); }

/* FAQ */
.faq-section { padding: 120px 0; background: var(--bg-2); }
.faq-head { margin-bottom: 48px; }
.faq-list { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; display: flex; justify-content: space-between; align-items: center;
  padding: 24px 0; background: none; border: 0; color: var(--ink); font-size: 1.05rem;
  font-weight: 600; cursor: pointer; font-family: inherit; text-align: left; gap: 20px;
  transition: color .2s;
}
.faq-q:hover { color: var(--purple-light); }
.faq-q[aria-expanded="true"] { color: var(--purple-light); }
.faq-chevron { flex-shrink: 0; color: var(--muted); transition: transform .3s; }
.faq-q[aria-expanded="true"] .faq-chevron { transform: rotate(180deg); color: var(--purple-light); }
.faq-a { overflow: hidden; max-height: 0; transition: max-height .4s ease, padding .3s; }
.faq-a.open { max-height: 400px; padding-bottom: 24px; }
.faq-a p { font-size: .95rem; color: var(--ink-2); line-height: 1.72; max-width: 760px; }

/* FOOTER */
.footer { background: #060606; border-top: 1px solid var(--line); padding: 80px 0 30px; }
.ft-inner { display: grid; grid-template-columns: 1.3fr 2fr; gap: 60px; padding-bottom: 50px; border-bottom: 1px solid var(--line); align-items: start; }
.ft-brand p { color: var(--muted); margin-top: 16px; font-size: .88rem; line-height: 1.6; }
.ft-backed { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.ft-badge { font-size: .72rem; font-weight: 600; padding: 4px 10px; border-radius: 999px; background: rgba(139,92,246,.1); border: 1px solid rgba(139,92,246,.2); color: var(--purple-light); }
.ft-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.ft-cols h5 { color: var(--ink); font-size: .75rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; margin: 0 0 16px; }
.ft-cols a { display: block; color: var(--muted); font-size: .88rem; margin-bottom: 10px; transition: color .15s; }
.ft-cols a:hover { color: var(--purple-light); }
.ft-meta { display: flex; justify-content: space-between; align-items: center; padding-top: 24px; font-size: .75rem; color: var(--muted); flex-wrap: wrap; gap: 10px; }
.ft-legal { display: flex; gap: 20px; }
.ft-legal a { color: var(--muted); font-size: .75rem; transition: color .15s; }
.ft-legal a:hover { color: var(--purple-light); }

/* REVEAL ANIMATION */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* RESPONSIVE */
@media (max-width: 1100px) {
  .hero-inner { grid-template-columns: 1fr; gap: 60px; padding-top: 120px; }
  .hero-demo { justify-content: flex-start; }
  .feat-inner { grid-template-columns: 1fr; gap: 48px; }
  .feat-reversed .feat-inner .feat-visual { order: -1; }
  .tech-cards { grid-template-columns: 1fr; gap: 16px; }
  .usecase-grid { grid-template-columns: repeat(3, 1fr); }
  .ft-inner { grid-template-columns: 1fr; gap: 40px; }
  .ft-cols { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .metrics-inner { flex-wrap: wrap; gap: 40px; }
  .metric-divider { display: none; }
}
@media (max-width: 768px) {
  .container { padding: 0 24px; }
  .nav, .nav.scrolled { padding: 16px 24px; }
  .nav-links, .nav-ctas { display: none; }
  .nav-burger { display: flex; }
  body.menu-open .nav-links {
    display: flex; position: absolute; top: 60px; left: 0; right: 0;
    background: rgba(10,10,10,.98); flex-direction: column; padding: 24px;
    gap: 16px; border-bottom: 1px solid var(--line); backdrop-filter: blur(20px);
  }
  .hero-inner { padding: 100px 24px 60px; }
  .hero-stats { flex-direction: column; gap: 10px; }
  .product-pills { flex-direction: column; }
  .product-pill { border-right: 0; border-bottom: 1px solid var(--line); }
  .product-pill:last-child { border-bottom: 0; }
  .feature-section { padding: 80px 0; }
  .tech-section, .usecases-section, .trust-section, .contact-section, .faq-section { padding: 80px 0; }
  .footer { padding: 60px 0 24px; }
  .usecase-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-inner { padding: 32px 24px; }
  .ft-cols { grid-template-columns: repeat(2, 1fr); }
  .ft-meta { flex-direction: column; align-items: flex-start; }
}