:root {
  --bg: #ffffff;
  --fg: #1d2129;
  --muted: #5b6270;
  --line: #e3e6eb;
  --card: #f6f7f9;
  --accent: #2563eb;
  --accent-fg: #ffffff;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121418;
    --fg: #e8eaed;
    --muted: #a0a7b3;
    --line: #2a2e36;
    --card: #1b1e24;
    --accent: #6b9bff;
    --accent-fg: #0b1020;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--accent); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 720px; }
header.top { display: flex; align-items: center; gap: 10px; padding: 18px 0; font-weight: 650; }
header.top a { color: inherit; text-decoration: none; display: flex; align-items: center; gap: 10px; }
.hero { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; padding: 40px 0 64px; }
.hero h1 { font-size: clamp(32px, 5vw, 48px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -.02em; }
.hero p { color: var(--muted); font-size: 19px; margin: 0 0 28px; }
.hero img { width: 100%; max-width: 380px; border-radius: 12px; box-shadow: 0 10px 40px #0003; justify-self: center; }
.btn { display: inline-block; padding: 12px 22px; border-radius: 9px; text-decoration: none; font-weight: 600; border: 1px solid var(--line); color: var(--fg); background: var(--bg); }
.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.btn.disabled { opacity: .6; pointer-events: none; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.fine { color: var(--muted); font-size: 14px; }
section { padding: 56px 0; border-top: 1px solid var(--line); }
h2 { font-size: 28px; margin: 0 0 24px; letter-spacing: -.01em; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.steps div { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.steps strong { display: block; margin-bottom: 6px; }
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.plan { border: 1px solid var(--line); border-radius: 14px; padding: 24px; background: var(--card); }
.plan.pro { border-color: var(--accent); }
.plan h3 { margin: 0; font-size: 20px; }
.price { font-size: 34px; font-weight: 700; margin: 6px 0 2px; }
.plan ul { padding-left: 20px; margin: 16px 0 22px; }
.faq details { border-bottom: 1px solid var(--line); padding: 14px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { color: var(--muted); margin: 8px 0 0; }
footer { border-top: 1px solid var(--line); padding: 28px 0 48px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; gap: 20px; flex-wrap: wrap; justify-content: space-between; }
.key { font: 15px/1.5 ui-monospace, Consolas, monospace; word-break: break-all; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin: 16px 0; }
.legal h2 { font-size: 21px; margin: 32px 0 8px; }
@media (max-width: 760px) {
  .hero, .plans, .steps { grid-template-columns: 1fr; }
  .hero { padding-top: 16px; gap: 32px; }
}
.actions + .fine { margin-top: 16px; }