:root {
  color-scheme: dark;
  --bg: #171b1d;
  --panel: #22282b;
  --panel-soft: #2a3033;
  --text: #f6f2eb;
  --muted: #b8b2a9;
  --accent: #f36b24;
  --accent-strong: #ff4d17;
  --line: rgba(246, 242, 235, 0.13);
  --max: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(circle at 85% 10%, rgba(243, 107, 36, 0.13), transparent 28rem), var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}
a { color: inherit; }
.shell { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(23, 27, 29, 0.9);
  backdrop-filter: blur(14px);
}
.topbar .shell { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 850; letter-spacing: .11em; text-decoration: none; }
.brand img { width: 42px; height: 42px; object-fit: contain; }
.nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 18px; }
.nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.nav a:hover, .nav a:focus-visible { color: var(--text); }
.hero { padding: 88px 0 56px; display: grid; grid-template-columns: 1.25fr .75fr; gap: 44px; align-items: center; }
.eyebrow { color: var(--accent); font-weight: 800; letter-spacing: .12em; text-transform: uppercase; font-size: 13px; }
h1 { margin: 14px 0 18px; font-size: clamp(42px, 7vw, 78px); line-height: .98; letter-spacing: -.045em; }
h2 { margin: 0 0 18px; font-size: clamp(28px, 4vw, 42px); letter-spacing: -.025em; line-height: 1.08; }
h3 { margin: 0 0 8px; font-size: 19px; }
p { margin: 0 0 16px; }
.lead { max-width: 700px; color: var(--muted); font-size: clamp(18px, 2.3vw, 22px); }
.actions { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0 20px; border-radius: 12px; background: var(--accent); color: #1c1714; font-weight: 850; text-decoration: none; }
.button:hover, .button:focus-visible { background: var(--accent-strong); color: white; }
.button.secondary { background: var(--panel-soft); color: var(--text); border: 1px solid var(--line); }
.price-card { padding: 30px; border-radius: 24px; background: linear-gradient(145deg, rgba(243,107,36,.18), rgba(34,40,43,.94) 48%); border: 1px solid rgba(243,107,36,.38); box-shadow: 0 24px 70px rgba(0,0,0,.24); }
.price { margin: 8px 0; font-size: 52px; line-height: 1; font-weight: 900; letter-spacing: -.05em; }
.price small { font-size: 18px; color: var(--muted); letter-spacing: 0; }
.plain-list { margin: 20px 0 0; padding: 0; list-style: none; }
.plain-list li { padding: 9px 0 9px 27px; border-top: 1px solid var(--line); position: relative; }
.plain-list li::before { content: "✓"; position: absolute; left: 2px; color: var(--accent); font-weight: 900; }
.section { padding: 58px 0; border-top: 1px solid var(--line); }
.section-copy { max-width: 760px; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 28px; }
.card { padding: 24px; border-radius: 18px; background: var(--panel); border: 1px solid var(--line); }
.card p { color: var(--muted); }
.notice { padding: 22px; border-left: 4px solid var(--accent); border-radius: 10px; background: rgba(243,107,36,.09); color: var(--muted); }
.notice strong { color: var(--text); }
.document { max-width: 860px; padding: 58px 0 80px; }
.document h1 { font-size: clamp(36px, 6vw, 58px); }
.document h2 { margin-top: 42px; font-size: 26px; }
.document ol, .document ul { color: var(--muted); padding-left: 24px; }
.document li { margin: 9px 0; }
.meta { color: var(--muted); font-size: 14px; }
.footer { padding: 36px 0 46px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 30px; }
.footer-links { display: flex; flex-wrap: wrap; align-content: start; gap: 10px 18px; }
.footer a:hover { color: var(--text); }

@media (max-width: 760px) {
  .topbar .shell { min-height: 64px; }
  .nav { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 58px; }
  .grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .price-card { padding: 24px; }
}