:root {
  --bg: #f6f7f9; --card: #fff; --text: #111827; --muted: #5b6474; --line: #e5e7eb;
  --accent: #2456d6; --accent-hover: #1d47b4; --accent-soft: #eaf0fd; --good: #047857; --bad: #b91c1c; --bad-soft: #fdecec;
  --shadow: 0 1px 2px rgba(16,24,40,.06), 0 8px 24px rgba(16,24,40,.08);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c1016; --card: #151a22; --text: #e6e9ef; --muted: #9aa3b1; --line: #252c38;
    --accent: #5b8cff; --accent-hover: #7aa2ff; --accent-soft: #1b2744; --good: #34d399; --bad: #f87171; --bad-soft: #2d1414;
    --shadow: 0 2px 6px rgba(0,0,0,.5), 0 10px 30px rgba(0,0,0,.4);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
.top, .foot, main > section { width: min(1080px, 100% - 32px); margin-inline: auto; }
.top { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 18px; }
.top nav { display: flex; gap: 22px; }
.top nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
.top nav a:hover { color: var(--text); }
.hero { text-align: center; padding: 48px 0 24px; }
.eyebrow { margin: 0; color: var(--accent); font-weight: 600; font-size: 14px; letter-spacing: .04em; text-transform: uppercase; }
h1 { font-size: clamp(34px, 5.4vw, 58px); line-height: 1.07; letter-spacing: -.025em; margin: 12px 0 18px; }
h2 { letter-spacing: -.015em; }
.lead { color: var(--muted); font-size: 18px; max-width: 680px; margin: 0 auto 26px; }
.cta { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.cta-note { color: var(--muted); font-size: 14px; }
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 22px; border-radius: 12px; border: 1px solid var(--line);
  background: var(--card); color: var(--text); font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
}
.button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.button.primary:hover { background: var(--accent-hover); }
.button.big { height: 54px; padding: 0 28px; font-size: 17px; }
.button.disabled { opacity: .7; cursor: default; }
.shot { display: block; width: 100%; height: auto; margin: 44px auto 0; border-radius: 14px; box-shadow: var(--shadow); border: 1px solid var(--line); }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; padding: 56px 0 24px; }
.facts article { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
.facts h2 { font-size: 18px; margin: 0 0 8px; }
.facts p { margin: 0; color: var(--muted); font-size: 15px; }
.price { text-align: center; padding: 48px 0 16px; }
.price h2 { font-size: 32px; margin: 0 0 10px; }
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 340px)); justify-content: center; gap: 18px; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 26px; text-align: left; }
.plan.main { border: 2px solid var(--accent); }
.plan h3 { margin: 0; font-size: 16px; color: var(--muted); }
.plan .amount { font-size: 38px; font-weight: 700; margin: 6px 0 12px; letter-spacing: -.02em; }
.plan .amount small { font-size: 16px; color: var(--muted); font-weight: 500; }
.plan ul { margin: 0; padding-left: 20px; color: var(--muted); }
.faq { padding: 40px 0 24px; max-width: 760px; }
.faq h2 { font-size: 26px; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; margin: 10px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { color: var(--muted); margin: 10px 0 2px; }
.narrow { max-width: 680px; padding: 40px 0 60px; }
.narrow h1 { font-size: clamp(30px, 4vw, 42px); }
.narrow .lead { margin-left: 0; }
.pay { margin: 26px 0; }
.small-list { color: var(--muted); padding-left: 20px; font-size: 15px; }
.small { color: var(--muted); font-size: 14px; }
.notice { padding: 12px 16px; border-radius: 10px; }
.notice.bad { background: var(--bad-soft); color: var(--bad); }
.key { width: 100%; padding: 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--card); color: var(--text); font: 13px/1.5 ui-monospace, Menlo, monospace; word-break: break-all; resize: vertical; }
.activated { color: var(--good) !important; font-weight: 600; }
.prose h2 { font-size: 20px; margin-top: 30px; }
.prose li { margin: 6px 0; }
.foot { display: flex; gap: 20px; padding: 36px 0 48px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); margin-top: 40px; }
.foot a { color: var(--muted); }
@media (max-width: 640px) { .top nav a:not(:last-child) { display: none; } }