:root {
  --bg: #0d0f13;
  --surface: #15181d;
  --raised: #1c2027;
  --border: #262b33;
  --border-strong: #3a414b;
  --line: #1f242b;
  --text: #e9ecf0;
  --muted: #9aa4b1;
  --faint: #6b7684;
  --accent: #5b9cff;
  --accent-hover: #79aeff;
  --accent-soft: #1a2a44;
  --on-accent: #0b1220;
  --green: #4fd58a;
  --playhead: #ff4d6d;
  --link: #8fc0ff;
  --radius: 16px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { animation: none !important; transition: none !important; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Onest', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--link); text-decoration: none; }
a:hover { color: #b9d7ff; }
:focus-visible { outline: 2px solid var(--link); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { margin: 0; letter-spacing: -0.02em; }
p { margin: 0; }
.mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }
.muted { color: var(--muted); }
.faint { color: var(--faint); }
.small { font-size: 13px; }
.center { text-align: center; }

.skip { position: absolute; left: -9999px; top: 8px; background: var(--accent); color: var(--on-accent); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 16px; }

.container { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.narrow { max-width: 820px; }
.section { padding-top: 104px; padding-bottom: 24px; }
.section-last { padding-top: 96px; padding-bottom: 96px; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 44px; padding: 0 18px; border-radius: 12px; font-weight: 600; font-size: 16px; transition: background .15s, border-color .15s; }
.btn-sm { font-size: 15px; border-radius: 10px; }
.btn-lg { min-height: 52px; padding: 0 24px; font-size: 17px; }
.btn-block { display: flex; width: 100%; min-height: 48px; }
.btn-primary { background: var(--accent); color: var(--on-accent); font-weight: 700; }
.btn-primary:hover { background: var(--accent-hover); color: var(--on-accent); }
.btn-ghost { border: 1px solid var(--border-strong); color: var(--text); }
.btn-ghost:hover { background: var(--raised); color: var(--text); }

/* nav */
.nav-wrap { position: sticky; top: 0; z-index: 10; background: rgba(13,15,19,.88); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; gap: 24px; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; font-size: 19px; }
.brand:hover { color: var(--text); }
.nav-links { display: flex; gap: 24px; flex: 1 1 auto; font-size: 15px; flex-wrap: wrap; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); }
.lang { display: flex; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.lang button { background: none; border: 0; color: var(--muted); font: 600 13px 'JetBrains Mono', monospace; min-width: 44px; min-height: 36px; cursor: pointer; }
.lang button[aria-pressed="true"] { background: var(--raised); color: var(--text); }
@media (max-width: 720px) {
  .nav-wrap { position: static; }
  .nav { gap: 12px; row-gap: 8px; }
  .brand { margin-right: auto; }
  .nav-links { order: 3; flex: 1 0 100%; gap: 20px; overflow-x: auto; flex-wrap: nowrap; white-space: nowrap; padding-bottom: 4px; scrollbar-width: none; }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links a { min-height: 36px; display: inline-flex; align-items: center; }
  .hero { padding-top: 40px; gap: 40px; }
  .cta-row .btn-lg { flex: 1 1 auto; }
}
@media (max-width: 480px) {
  .nav > .btn { display: none; }
}

/* hero */
.hero { display: flex; flex-wrap: wrap; gap: 56px; align-items: center; padding-top: 88px; padding-bottom: 56px; }
.hero-copy { flex: 1 1 460px; min-width: 0; display: flex; flex-direction: column; gap: 24px; }
.pill { display: inline-flex; align-self: flex-start; align-items: center; gap: 8px; padding: 6px 12px; border: 1px solid var(--border); border-radius: 999px; font-size: 14px; color: var(--muted); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); }
h1 { font-size: clamp(40px, 6vw, 60px); line-height: 1.04; letter-spacing: -0.03em; font-weight: 800; }
.lead { font-size: 20px; color: var(--muted); max-width: 560px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.center-row { justify-content: center; }
.fine { font-size: 14px; color: var(--muted); }

.demo { flex: 1 1 520px; min-width: 0; margin: 0; background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 20px; display: flex; flex-direction: column; gap: 18px; box-shadow: 0 30px 80px rgba(0,0,0,.45); }
.demo-head { display: flex; justify-content: space-between; font-size: 13px; color: var(--muted); }
.tracks { display: flex; flex-direction: column; gap: 8px; }
.track { display: flex; align-items: center; gap: 10px; }
.track-name { width: 78px; flex: none; font-size: 12px; color: var(--muted); }
.lane { position: relative; flex: 1; min-width: 0; height: 40px; background: var(--bg); border-radius: 6px; overflow: hidden; }
.wave { position: absolute; top: 0; bottom: 0; display: flex; align-items: center; gap: 3px; padding-left: 6px; white-space: nowrap; transition: left 1.2s cubic-bezier(.2,.8,.2,1); }
.wave i { display: block; width: 4px; border-radius: 2px; flex: none; }
.playhead { position: absolute; top: 0; bottom: 0; left: 44%; width: 2px; background: var(--playhead); }
.demo-sep { display: flex; align-items: center; gap: 10px; color: var(--green); font-size: 13px; font-weight: 600; }
.rule { flex: 1; height: 1px; background: var(--border); }

/* strip */
.strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.strip-row { display: flex; flex-wrap: wrap; gap: 14px 36px; align-items: center; justify-content: center; padding-top: 22px; padding-bottom: 22px; font-size: 15px; font-weight: 600; }

/* sections */
.kicker { font: 500 13px 'JetBrains Mono', monospace; color: var(--accent); letter-spacing: .08em; margin-bottom: 12px; }
h2 { font-size: clamp(30px, 4vw, 42px); line-height: 1.1; font-weight: 800; max-width: 720px; margin-bottom: 48px; }
h2.center { margin-left: auto; margin-right: auto; margin-bottom: 40px; }
.h2-sm { font-size: clamp(26px, 3vw, 34px); margin-bottom: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; gap: 12px; }
.card h3 { font-size: 22px; font-weight: 700; }
.card p { color: var(--muted); }
.num { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--accent-soft); color: var(--link); font-weight: 700; }

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.feature-grid article { background: var(--bg); padding: 32px; display: flex; flex-direction: column; gap: 10px; }
.feature-grid h3 { font-size: 20px; font-weight: 700; }
.feature-grid p { color: var(--muted); font-size: 16px; }
.tag { color: var(--green); font: 500 13px 'JetBrains Mono', monospace; }

.why { background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: clamp(28px, 5vw, 48px); display: flex; flex-wrap: wrap; gap: 40px; }
.why > * { flex: 1 1 360px; min-width: 0; }
.checks { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 16px; }
.checks li { position: relative; padding-left: 36px; }
.checks li::before { content: ""; position: absolute; left: 0; top: 3px; width: 22px; height: 22px; background: no-repeat center/22px url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%234fd58a' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E"); }

.plans { display: flex; flex-wrap: wrap; gap: 20px; justify-content: center; }
.plan { flex: 0 1 380px; min-width: 0; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 36px; display: flex; flex-direction: column; gap: 18px; }
.plan h3 { font-size: 20px; font-weight: 700; margin-bottom: -10px; }
.plan .muted { font-size: 15px; }
.plan-main { border: 2px solid var(--accent); }
.price { font-size: 48px; font-weight: 800; letter-spacing: -0.02em; }
.price span { font-size: 20px; color: var(--muted); font-weight: 500; }
.plan-list { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; font-size: 15px; }
.plan-list li::before { content: "✓  "; color: var(--green); }

.faq { border-top: 1px solid var(--border); }
.faq details { border-bottom: 1px solid var(--border); padding: 22px 0; }
.faq summary { cursor: pointer; font-size: 19px; font-weight: 600; 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-weight: 400; }
.faq details[open] summary::after { content: "−"; }
.faq p { margin-top: 12px; color: var(--muted); }

.final { background: var(--surface); border: 1px solid var(--border); border-radius: 24px; padding: 64px 24px; display: flex; flex-direction: column; align-items: center; gap: 20px; text-align: center; }
.final h2 { margin: 0 auto; }
.final .muted { font-size: 18px; }

.footer { border-top: 1px solid var(--line); }
.footer-row { display: flex; flex-wrap: wrap; gap: 16px 32px; justify-content: space-between; padding-top: 28px; padding-bottom: 28px; font-size: 14px; color: var(--faint); }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); }