:root {
  --bg: #050607;
  --bg-2: #0c0e10;
  --line: rgba(255, 255, 255, 0.08);
  --text: #f2f5f3;
  --muted: #9aa39e;
  --glow: #5cff9d;
  --glow-soft: rgba(92, 255, 157, 0.14);
  --radius: 18px;
  --max: 1080px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--glow); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header */
.nav {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  background: rgba(5, 6, 7, 0.72);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 650; letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.nav-links { display: flex; gap: 22px; font-size: 15px; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero { position: relative; padding: 72px 0 40px; text-align: center; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto; height: 520px;
  background: radial-gradient(closest-side, var(--glow-soft), transparent 70%);
  pointer-events: none;
}
.eyebrow { color: var(--glow); font-size: 14px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; }
h1 {
  position: relative;
  font-size: clamp(40px, 7vw, 76px); line-height: 1.02; letter-spacing: -0.035em;
  margin: 14px 0 18px; font-weight: 750;
}
h1 .hl { color: var(--glow); text-shadow: 0 0 28px rgba(92, 255, 157, 0.45); }
.lede { color: var(--muted); font-size: clamp(18px, 2.4vw, 21px); max-width: 640px; margin: 0 auto 30px; }

.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.store-btn {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 12px 22px; border-radius: 14px;
  background: #fff; color: #000; font-weight: 650;
  border: 1px solid #fff;
}
.store-btn:hover { text-decoration: none; filter: brightness(0.92); }
.store-btn small { display: block; font-size: 11px; font-weight: 500; opacity: 0.7; line-height: 1.1; }
.store-btn span { display: block; font-size: 19px; line-height: 1.15; letter-spacing: -0.01em; }
.store-btn svg { width: 26px; height: 26px; flex: none; }
.store-btn[aria-disabled="true"] { background: transparent; color: var(--text); border-color: var(--line); cursor: default; }
.store-btn[aria-disabled="true"]:hover { filter: none; }
.ghost-btn {
  display: inline-flex; align-items: center; padding: 12px 22px; border-radius: 14px;
  border: 1px solid var(--line); color: var(--text); font-weight: 600;
}
.ghost-btn:hover { text-decoration: none; border-color: rgba(255,255,255,0.25); }

.film {
  position: relative; margin: 48px auto 0; max-width: 760px;
  border-radius: 22px; overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 30px 120px -30px rgba(92, 255, 157, 0.28), 0 0 0 1px rgba(0,0,0,0.6);
  background: #000;
}
.film video { display: block; width: 100%; height: auto; aspect-ratio: 1 / 1; }
.sound-btn {
  position: absolute; right: 14px; bottom: 14px;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px; border-radius: 999px; border: 1px solid rgba(255,255,255,0.18);
  background: rgba(0,0,0,0.55); color: #fff; font: inherit; font-size: 14px; font-weight: 600;
  cursor: pointer; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.sound-btn:hover { background: rgba(0,0,0,0.75); }
.sound-btn svg { width: 16px; height: 16px; }

/* Sections */
section { padding: 72px 0; }
.section-head { text-align: center; margin-bottom: 40px; }
h2 { font-size: clamp(30px, 4.5vw, 44px); letter-spacing: -0.025em; line-height: 1.1; margin: 10px 0 12px; }
.section-head p { color: var(--muted); max-width: 600px; margin: 0 auto; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.card {
  background: linear-gradient(180deg, var(--bg-2), var(--bg));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 24px;
}
.card .ico {
  width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center;
  background: var(--glow-soft); color: var(--glow); margin-bottom: 16px;
}
.card .ico svg { width: 22px; height: 22px; }
.card h3 { margin: 0 0 6px; font-size: 18px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; counter-reset: s; }
.step { padding: 24px; border-left: 2px solid var(--glow); background: var(--bg-2); border-radius: 0 var(--radius) var(--radius) 0; }
.step::before { counter-increment: s; content: "0" counter(s); color: var(--glow); font-weight: 700; font-size: 14px; letter-spacing: 0.1em; }
.step h3 { margin: 8px 0 6px; font-size: 18px; }
.step p { margin: 0; color: var(--muted); font-size: 15.5px; }

.band {
  border: 1px solid var(--line); border-radius: 24px; padding: 40px;
  background: radial-gradient(120% 140% at 0% 0%, rgba(92,255,157,0.10), transparent 55%), var(--bg-2);
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; align-items: center;
}
.band h2 { margin-top: 0; }
.band p { color: var(--muted); margin: 0; }
.band ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.band li { display: flex; gap: 10px; align-items: baseline; }
.band li::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--glow); box-shadow: 0 0 10px var(--glow); flex: none; transform: translateY(-1px); }

.closing { text-align: center; }
.closing img { width: 96px; height: 96px; border-radius: 22px; box-shadow: 0 0 60px rgba(92,255,157,0.25); }

/* Footer */
footer { border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 14px 28px; justify-content: space-between; }
footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
footer a { color: var(--muted); }
footer a:hover { color: var(--text); }

/* Long-form pages */
.doc { max-width: 720px; margin: 0 auto; padding: 56px 20px 80px; }
.doc h1 { font-size: clamp(34px, 5vw, 48px); margin-bottom: 8px; }
.doc .meta { color: var(--muted); margin-bottom: 36px; }
.doc h2 { font-size: 24px; margin: 40px 0 10px; }
.doc p, .doc li { color: #cfd6d2; }
.doc ul { padding-left: 22px; }
.doc li { margin: 6px 0; }
.doc table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 15px; }
.doc th, .doc td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.doc th { color: var(--text); font-weight: 600; }
.doc td { color: #cfd6d2; }
.table-scroll { overflow-x: auto; }
.callout { border: 1px solid var(--line); background: var(--bg-2); border-radius: 14px; padding: 18px 20px; }
details { border-bottom: 1px solid var(--line); padding: 14px 0; }
summary { cursor: pointer; font-weight: 600; color: var(--text); }
details p { margin: 10px 0 0; }

@media (max-width: 860px) {
  .grid, .steps { grid-template-columns: 1fr 1fr; }
  .band { grid-template-columns: 1fr; padding: 28px; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 16px; }
  .grid, .steps { grid-template-columns: 1fr; }
  .nav-links a.hide-sm { display: none; }
  .hero { padding-top: 48px; }
  section { padding: 56px 0; }
  .film { border-radius: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}