:root {
  color-scheme: light dark;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #16181d;
  --muted: #5b6270;
  --line: #e2e5ea;
  --accent: #2151cc;
  --accent-soft: #eaf0ff;
  --warn: #8a5a00;
  --warn-soft: #fff5e0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #171a20;
    --text: #eef0f4;
    --muted: #9aa3b2;
    --line: #272c35;
    --accent: #6f9bff;
    --accent-soft: #18233c;
    --warn: #ffcb6b;
    --warn-soft: #2a2213;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0 20px;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

.page { max-width: 720px; margin: 0 auto; padding-block: 48px 64px; }

a { color: var(--accent); }
h1, h2, h3 { line-height: 1.25; letter-spacing: -0.01em; }
h1 { font-size: clamp(30px, 6vw, 42px); margin: 0 0 12px; }
h2 { font-size: 22px; margin: 44px 0 14px; }
h3 { font-size: 17px; margin: 26px 0 6px; }
p { margin: 0 0 14px; }
ul { margin: 0 0 14px; padding-left: 22px; }
li { margin-bottom: 6px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }

/* Шапка лендинга */
.hero { text-align: center; padding-block: 8px 12px; }
.hero img { width: 96px; height: 96px; border-radius: 22px; box-shadow: 0 8px 24px rgb(0 0 0 / 0.14); }
.hero p.lead { font-size: 19px; color: var(--muted); max-width: 30em; margin: 0 auto 22px; }
.tagline {
  display: inline-flex; flex-wrap: wrap; justify-content: center; gap: 8px;
  margin: 0 0 26px; padding: 0; list-style: none;
}
.tagline li {
  margin: 0; padding: 5px 12px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent);
  font-size: 13px; font-weight: 600;
}

.button {
  display: inline-block; padding: 13px 26px; border-radius: 12px;
  background: var(--accent); color: #fff; font-weight: 600; text-decoration: none;
}
.button--disabled { background: var(--line); color: var(--muted); pointer-events: none; }

.cards { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); margin: 12px 0 0; padding: 0; list-style: none; }
.card { margin: 0; padding: 20px; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; }
.card h3 { margin: 0 0 6px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

.panel { padding: 20px 22px; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; }
.panel--warn { background: var(--warn-soft); border-color: transparent; }
.panel--warn h3 { color: var(--warn); }

.faq { margin-top: 8px; }
.faq h3 { margin-bottom: 4px; }

.footer {
  margin-top: 56px; padding-top: 22px; border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center;
  color: var(--muted); font-size: 14px;
}
.footer a { text-decoration: none; }
.footer .spacer { flex: 1 1 auto; }

.back { display: inline-block; margin-bottom: 24px; font-size: 14px; text-decoration: none; }