:root {
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --bg-card: #ffffff;
  --ink: #0f172a;
  --ink-2: #334155;
  --muted: #64748b;
  --line: #e2e8f0;
  --accent: #4f46e5;
  --accent-2: #0ea5e9;
  --accent-ink: #ffffff;
  --ok: #16a34a;
  --code-bg: #0b1020;
  --code-ink: #e2e8f0;
  --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 8px 24px rgba(15, 23, 42, .06);
  --radius: 14px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1020;
    --bg-soft: #111831;
    --bg-card: #121a33;
    --ink: #e5e9f5;
    --ink-2: #c3cadb;
    --muted: #8b95ad;
    --line: #243052;
    --accent: #818cf8;
    --accent-2: #38bdf8;
    --accent-ink: #0b1020;
    --code-bg: #070b17;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { display: block; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.01em; margin: 0 0 .5em; }
p { margin: 0 0 1em; }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 600px) { .wrap { padding: 0 16px; } }

/* Header */
.header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.header__row { display: flex; align-items: center; gap: 32px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 700; font-size: 18px; }
.brand:hover { text-decoration: none; }
.brand svg { width: 30px; height: 30px; }
.nav { display: flex; gap: 24px; flex: 1; }
.nav a { color: var(--ink-2); font-size: 15px; }
.nav a:hover { color: var(--ink); text-decoration: none; }
.header__cta { display: flex; gap: 12px; align-items: center; }
@media (max-width: 900px) { .nav { display: none; } .header__row { justify-content: space-between; } }
@media (max-width: 480px) { .header__cta .btn--ghost { display: none; } }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 20px; border-radius: 10px;
  background: var(--accent); color: var(--accent-ink);
  font-weight: 600; font-size: 15px; border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: 0 6px 18px color-mix(in srgb, var(--accent) 35%, transparent); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { box-shadow: none; background: var(--bg-soft); }
.btn--sm { height: 36px; padding: 0 14px; font-size: 14px; }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 88px 0 72px; }
.hero::before {
  content: ""; position: absolute; inset: -40% -10% auto -10%; height: 720px; z-index: -1;
  background:
    radial-gradient(600px 300px at 20% 30%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 70%),
    radial-gradient(500px 280px at 80% 20%, color-mix(in srgb, var(--accent-2) 20%, transparent), transparent 70%);
}
.hero__grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
@media (max-width: 960px) { .hero__grid { grid-template-columns: 1fr; } .hero { padding-top: 56px; } }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--bg-card); color: var(--ink-2); font-size: 13px; margin-bottom: 20px;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 25%, transparent); }
.hero h1 { font-size: clamp(34px, 5vw, 56px); font-weight: 800; }
.hero h1 span { background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: 19px; color: var(--ink-2); max-width: 560px; }
.hero__actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0 24px; }
.hero__meta { display: flex; gap: 24px; flex-wrap: wrap; color: var(--muted); font-size: 14px; }
.hero__meta span::before { content: "✓ "; color: var(--ok); font-weight: 700; }

/* Player mockup */
.player {
  border-radius: 18px; overflow: hidden; background: var(--bg-card);
  border: 1px solid var(--line); box-shadow: 0 30px 80px -20px rgba(15, 23, 42, .35);
}
.player__screen {
  position: relative; aspect-ratio: 16 / 9;
  background:
    linear-gradient(135deg, rgba(79, 70, 229, .85), rgba(14, 165, 233, .75)),
    repeating-linear-gradient(45deg, rgba(255,255,255,.04) 0 12px, transparent 12px 24px);
}
.player__screen::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(400px 200px at 70% 30%, rgba(255,255,255,.25), transparent 70%);
}
.player__play {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); z-index: 1;
  width: 72px; height: 72px; border-radius: 50%; background: rgba(255, 255, 255, .95);
  display: grid; place-items: center; box-shadow: 0 10px 30px rgba(0, 0, 0, .25);
}
.player__play svg { width: 26px; height: 26px; margin-left: 4px; }
.player__badge {
  position: absolute; left: 16px; top: 16px; z-index: 1;
  display: flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 6px;
  background: rgba(220, 38, 38, .95); color: #fff; font-size: 12px; font-weight: 700; letter-spacing: .04em;
}
.player__badge i { width: 6px; height: 6px; border-radius: 50%; background: #fff; animation: blink 1.4s infinite; }
.player__quality {
  position: absolute; right: 16px; top: 16px; z-index: 1; padding: 4px 8px; border-radius: 6px;
  background: rgba(0, 0, 0, .45); color: #fff; font: 600 12px/1.4 var(--mono);
}
.player__bar { display: flex; align-items: center; gap: 12px; padding: 12px 16px; font: 12px/1 var(--mono); color: var(--muted); }
.track { flex: 1; height: 4px; border-radius: 4px; background: var(--line); overflow: hidden; }
.track i { display: block; height: 100%; width: 38%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); animation: progress 18s linear infinite; }
.player__stats { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.player__stats div { padding: 14px 16px; }
.player__stats div + div { border-left: 1px solid var(--line); }
.player__stats b { display: block; font: 700 18px/1.2 var(--mono); color: var(--ink); }
.player__stats small { color: var(--muted); font-size: 12px; }
@keyframes blink { 50% { opacity: .2; } }
@keyframes progress { from { width: 8%; } to { width: 96%; } }
@media (prefers-reduced-motion: reduce) { .track i, .player__badge i { animation: none; } html { scroll-behavior: auto; } }

/* Sections */
.section { padding: 88px 0; }
.section--soft { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section__head { max-width: 680px; margin-bottom: 48px; }
.section__head--center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker { color: var(--accent); font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 10px; }
.section h2 { font-size: clamp(28px, 3.5vw, 40px); font-weight: 800; }
.section__head p { color: var(--ink-2); font-size: 18px; }
@media (max-width: 600px) { .section { padding: 64px 0; } }

/* Numbers strip */
.numbers { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.numbers div { background: var(--bg-card); padding: 24px; }
.numbers b { display: block; font: 800 28px/1.1 var(--font); letter-spacing: -.02em; }
.numbers span { color: var(--muted); font-size: 14px; }
@media (max-width: 800px) { .numbers { grid-template-columns: repeat(2, 1fr); } }

/* Features */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-3 { grid-template-columns: 1fr; } }
.card { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.card h3 { font-size: 18px; margin-top: 18px; }
.card p { color: var(--ink-2); margin: 0; font-size: 15px; }
.icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent);
}
.icon svg { width: 22px; height: 22px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; list-style: none; padding: 0; margin: 0; }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }
.steps li { position: relative; padding: 28px; border-radius: var(--radius); border: 1px dashed var(--line); background: var(--bg-card); }
.steps li::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  display: block; font: 700 14px/1 var(--mono); color: var(--accent); margin-bottom: 14px;
}
.steps h3 { font-size: 18px; }
.steps p { color: var(--ink-2); margin: 0; font-size: 15px; }

/* API */
.api { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: center; }
@media (max-width: 960px) { .api { grid-template-columns: 1fr; } }
.checklist { list-style: none; padding: 0; margin: 0 0 24px; }
.checklist li { padding-left: 28px; position: relative; margin-bottom: 10px; color: var(--ink-2); }
.checklist li::before { content: ""; position: absolute; left: 0; top: 7px; width: 16px; height: 10px; border-left: 2px solid var(--ok); border-bottom: 2px solid var(--ok); transform: rotate(-45deg) scale(.8); }
.code { background: var(--code-bg); color: var(--code-ink); border-radius: var(--radius); overflow: hidden; border: 1px solid #1e293b; box-shadow: var(--shadow); }
.code__tabs { display: flex; gap: 6px; padding: 12px 16px; border-bottom: 1px solid #1e293b; font: 12px/1 var(--mono); color: #94a3b8; }
.code__tabs span { padding: 6px 10px; border-radius: 6px; }
.code__tabs span.is-active { background: #1e293b; color: #e2e8f0; }
.code pre { margin: 0; padding: 20px; overflow-x: auto; font: 13px/1.7 var(--mono); }
.c-k { color: #c4b5fd; } .c-s { color: #86efac; } .c-c { color: #64748b; } .c-n { color: #fcd34d; }

/* Pricing */
.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
@media (max-width: 900px) { .pricing { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; } }
.plan { display: flex; flex-direction: column; background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.plan--featured { border: 2px solid var(--accent); box-shadow: 0 20px 50px -20px color-mix(in srgb, var(--accent) 45%, transparent); position: relative; }
.plan__tag { position: absolute; top: -12px; left: 32px; padding: 3px 10px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font-size: 12px; font-weight: 700; }
.plan h3 { font-size: 20px; }
.plan__desc { color: var(--muted); font-size: 14px; min-height: 44px; }
.plan__price { font-size: 36px; font-weight: 800; letter-spacing: -.02em; margin: 8px 0 4px; }
.plan__price small { font-size: 15px; font-weight: 500; color: var(--muted); }
.plan ul { list-style: none; padding: 0; margin: 20px 0 28px; flex: 1; }
.plan li { padding: 8px 0; border-top: 1px solid var(--line); font-size: 15px; color: var(--ink-2); }
.plan .btn { width: 100%; }

/* FAQ */
.faq { max-width: 820px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-size: 22px; line-height: 1; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--ink-2); margin: 12px 0 0; }

/* CTA */
.cta {
  border-radius: 20px; padding: 56px; text-align: center; color: #fff;
  background: linear-gradient(135deg, #4f46e5, #0ea5e9);
}
.cta h2 { color: #fff; }
.cta p { color: rgba(255, 255, 255, .88); font-size: 18px; max-width: 560px; margin: 0 auto 28px; }
.cta .btn { background: #fff; color: #312e81; }
.cta .btn--ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .5); }
.cta .btn--ghost:hover { background: rgba(255, 255, 255, .12); }
.cta__actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
@media (max-width: 600px) { .cta { padding: 40px 20px; } }

/* Footer */
.footer { border-top: 1px solid var(--line); padding: 56px 0 32px; color: var(--muted); font-size: 14px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; margin-bottom: 40px; }
@media (max-width: 800px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
.footer h4 { color: var(--ink); font-size: 14px; margin: 0 0 12px; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 8px; }
.footer a { color: var(--muted); }
.footer a:hover { color: var(--ink); }
.footer__bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 24px; border-top: 1px solid var(--line); }
.status { display: inline-flex; align-items: center; gap: 8px; }

/* Text pages */
.page { padding: 64px 0 88px; }
.page .wrap { max-width: 800px; }
.page h1 { font-size: clamp(30px, 4vw, 42px); font-weight: 800; }
.page h2 { font-size: 22px; margin-top: 40px; }
.page p, .page li { color: var(--ink-2); }
.page .updated { color: var(--muted); font-size: 14px; margin-bottom: 32px; }

.center-box { min-height: calc(100vh - 64px - 140px); display: grid; place-items: center; text-align: center; padding: 64px 16px; }
.center-box .card { max-width: 480px; text-align: left; }
.center-box .big { font: 800 96px/1 var(--font); letter-spacing: -.04em; background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; margin-bottom: 12px; }