:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --line: #dfe2e8;
  --text: #1b1e25;
  --muted: #5d6676;
  --accent: #e5383b;
  --pro: #a86a00;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --card: #181b22;
    --line: #2a2f3a;
    --text: #e8eaf0;
    --muted: #98a0b0;
    --accent: #ff4d4f;
    --pro: #f5b942;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}
a { color: inherit; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
header.top { display: flex; align-items: center; gap: 12px; padding: 20px 0; }
header.top img { width: 36px; height: 36px; }
header.top b { font-size: 20px; }
header.top nav { margin-left: auto; display: flex; gap: 20px; font-size: 15px; color: var(--muted); }
header.top nav a { text-decoration: none; }
header.top nav a:hover { color: var(--text); }

.hero { padding: 48px 0 32px; text-align: center; }
.hero h1 { font-size: clamp(32px, 6vw, 54px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -0.02em; text-wrap: balance; }
.hero p { color: var(--muted); max-width: 640px; margin: 0 auto 28px; font-size: 19px; text-wrap: pretty; }
.cta {
  display: inline-block; background: var(--accent); color: #fff; font-weight: 600;
  padding: 14px 26px; border-radius: 10px; text-decoration: none;
}
.cta[aria-disabled="true"] { opacity: .75; cursor: default; }
.hero small { display: block; margin-top: 12px; color: var(--muted); font-size: 14px; }
.shot { width: 100%; height: auto; display: block; border-radius: 14px; border: 1px solid var(--line); margin-top: 40px; }

section { padding: 48px 0; }
h2 { font-size: clamp(24px, 4vw, 32px); margin: 0 0 24px; letter-spacing: -0.01em; text-wrap: balance; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }

.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.plans .card ul { margin: 14px 0 0; padding-left: 20px; color: var(--muted); font-size: 15.5px; }
.plans .price { font-size: 30px; font-weight: 700; }
.plans .price span { font-size: 15px; font-weight: 400; color: var(--muted); }
.plans .pro { border-color: var(--pro); }
.plans .pro h3 { color: var(--pro); }

.doc { max-width: 720px; padding: 24px 0 64px; }
.doc h1 { font-size: 34px; margin: 0 0 8px; }
.doc .date { color: var(--muted); font-size: 14px; margin: 0 0 24px; }

footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 20px; }
footer span { margin-right: auto; }

.doc .card { margin: 20px 0; }
.doc .card p { color: var(--muted); font-size: 14px; margin: 0; }
.doc .card .code {
  color: var(--text); font: 600 18px/1.4 ui-monospace, Consolas, monospace;
  margin: 2px 0 14px; overflow-wrap: anywhere; user-select: all;
}
.doc .card .cta { border: 0; font: inherit; font-weight: 600; cursor: pointer; padding: 10px 18px; }
.doc h2 { font-size: 22px; margin: 28px 0 8px; }