:root {
  color-scheme: light dark;
  --bg: #0f1117;
  --card: #171a22;
  --text: #f3f5f7;
  --muted: #a9b0bc;
  --accent: #6ea8fe;
  --border: #2a2f3a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
main {
  width: min(860px, calc(100% - 32px));
  margin: 48px auto;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: clamp(24px, 5vw, 48px);
  box-shadow: 0 16px 50px rgba(0,0,0,.22);
}
h1, h2 { line-height: 1.2; }
h1 { margin-top: 0; font-size: clamp(2rem, 6vw, 3.25rem); }
h2 { margin-top: 2rem; }
p, li { color: var(--muted); }
strong { color: var(--text); }
a { color: #8ec5ff; }
nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
}
.badge {
  display: inline-block;
  color: white;
  background: var(--accent);
  border-radius: 999px;
  padding: 5px 11px;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .02em;
}
.cta {
  margin: 28px 0;
  padding: 22px;
  border: 1px solid var(--accent);
  background: rgba(110,168,254,.08);
  border-radius: 12px;
}
.phone {
  font-size: clamp(1.4rem, 5vw, 2rem);
  font-weight: 800;
  letter-spacing: .03em;
}
.notice {
  border-left: 4px solid var(--accent);
  padding: 12px 16px;
  background: rgba(110,168,254,.08);
  border-radius: 8px;
}
footer {
  margin-top: 28px;
  font-size: .9rem;
  color: var(--muted);
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6f9;
    --card: #ffffff;
    --text: #151820;
    --muted: #505866;
    --border: #dde2e9;
  }
}