:root {
  color-scheme: light dark;
  --accent: #6366f1;
  --accent-ink: #ffffff;
  --bg: #f5f6fb;
  --surface: #ffffff;
  --border: #e3e5ef;
  --ink: #16181f;
  --ink-muted: #6b7080;
  --ok: #16a34a;
  --ok-bg: #f0fdf4;
  --radius: 16px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #818cf8;
    --accent-ink: #11121b;
    --bg: #0f1016;
    --surface: #1a1b26;
    --border: #2b2d3d;
    --ink: #eceef5;
    --ink-muted: #9a9db1;
    --ok: #4ade80;
    --ok-bg: #112116;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

/* ---- Header ---- */
header.site {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0;
}
.brand { font-weight: 800; font-size: 19px; display: flex; align-items: center; gap: 8px; }
.brand-mark { flex: none; }
nav.site-nav { display: flex; gap: 20px; }
nav.site-nav a { color: var(--ink-muted); font-size: 15px; font-weight: 500; }
nav.site-nav a:hover { color: var(--ink); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px; font-weight: 700; font-size: 15px;
  border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink);
  cursor: pointer; white-space: nowrap;
}
.btn:hover { filter: brightness(1.06); }
.btn.secondary { background: transparent; color: var(--ink); border-color: var(--border); }
.btn.small { padding: 8px 16px; font-size: 13px; }

/* ---- Hero ---- */
.hero { padding: 56px 0 48px; text-align: center; }
.hero h1 { font-size: 40px; line-height: 1.15; margin: 0 0 16px; }
.hero p.lead { font-size: 18px; color: var(--ink-muted); max-width: 560px; margin: 0 auto 28px; }
.hero .ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 18px; }
.hero .hint { font-size: 13px; color: var(--ink-muted); }

/* ---- Sections ---- */
section { padding: 48px 0; border-top: 1px solid var(--border); }
section h2 { font-size: 26px; margin: 0 0 8px; text-align: center; }
section p.sub { text-align: center; color: var(--ink-muted); margin: 0 0 32px; }

/* ---- Шаги ---- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.step .num {
  width: 32px; height: 32px; border-radius: 999px; background: var(--accent); color: var(--accent-ink);
  display: flex; align-items: center; justify-content: center; font-weight: 700; margin-bottom: 14px;
}
.step h3 { margin: 0 0 6px; font-size: 16px; }
.step p { margin: 0; color: var(--ink-muted); font-size: 14px; }

/* ---- Фичи ---- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.feature .icon { font-size: 26px; margin-bottom: 10px; }
.feature h3 { margin: 0 0 6px; font-size: 15px; }
.feature p { margin: 0; color: var(--ink-muted); font-size: 13px; }

/* ---- Тарифы ---- */
.pricing { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.price-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px 14px; text-align: center; position: relative;
}
.price-card.trial { border-color: var(--ok); }
.price-card .period { font-size: 13px; color: var(--ink-muted); margin-bottom: 8px; }
.price-card .amount { font-size: 22px; font-weight: 800; }
.price-card .amount .stars { font-size: 14px; color: var(--ink-muted); font-weight: 500; }
.price-card .save {
  position: absolute; top: -10px; right: 10px; background: var(--ok-bg); color: var(--ok);
  font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 999px;
}
.pricing-note { text-align: center; color: var(--ink-muted); font-size: 13px; margin-top: 18px; }

/* ---- FAQ ---- */
.faq { max-width: 680px; margin: 0 auto; display: flex; flex-direction: column; gap: 10px; }
.faq details {
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px;
}
.faq summary { cursor: pointer; font-weight: 600; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "▸ "; color: var(--ink-muted); }
.faq details[open] summary::before { content: "▾ "; }
.faq p { margin: 10px 0 0; color: var(--ink-muted); font-size: 14px; }

/* ---- Финальный CTA ---- */
.cta-final { text-align: center; padding: 56px 0; }
.cta-final h2 { margin-bottom: 10px; }
.cta-final p.sub { margin-bottom: 26px; }

/* ---- Footer ---- */
footer.site { border-top: 1px solid var(--border); padding: 24px 0; }
footer.site .wrap {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}
footer.site .links { display: flex; gap: 16px; font-size: 13px; }
footer.site .copy { font-size: 13px; color: var(--ink-muted); }

/* ---- Мобильная версия ---- */
@media (max-width: 760px) {
  nav.site-nav { display: none; }
  .hero h1 { font-size: 30px; }
  .steps, .features { grid-template-columns: 1fr; }
  .pricing { grid-template-columns: repeat(2, 1fr); }
}