:root {
  color-scheme: light;
  --bg: #f6f7fb;
  --ink: #172033;
  --muted: #5b657a;
  --card: #ffffff;
  --line: #dfe4ef;
  --accent: #2457d6;
  --accent-dark: #173d9c;
}
* { 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(--ink);
  line-height: 1.6;
}
a { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 3px solid #ffbf47; outline-offset: 3px; }
.skip-link {
  position: absolute;
  top: -48px;
  left: 1rem;
  background: var(--ink);
  color: #fff;
  padding: .6rem .8rem;
  border-radius: .5rem;
  z-index: 10;
}
.skip-link:focus { top: 1rem; }
.hero, main, footer { width: min(1040px, calc(100% - 32px)); margin: 0 auto; }
.hero { padding: 72px 0 32px; }
.eyebrow, .tag { color: var(--accent-dark); font-weight: 700; letter-spacing: .04em; text-transform: uppercase; font-size: .82rem; margin: 0 0 .5rem; }
h1 { font-size: clamp(2.2rem, 7vw, 4.9rem); line-height: .98; margin: 0 0 1rem; letter-spacing: -.055em; max-width: 900px; }
h2 { font-size: clamp(1.45rem, 3vw, 2rem); line-height: 1.15; margin: 0 0 1rem; }
h3 { margin: 0 0 .4rem; font-size: 1.4rem; line-height: 1.2; }
.lead { font-size: 1.25rem; color: var(--muted); max-width: 760px; margin: 0; }
.notice, .limits, .card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 16px 50px rgba(23, 32, 51, .06);
}
.notice, .limits { padding: 1.4rem; margin: 1.25rem 0; }
.tools { margin: 2rem 0; display: grid; gap: 1rem; }
.card { padding: 1.3rem; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1rem; align-items: center; }
.card p:not(.tag) { margin: 0; color: var(--muted); }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: .75rem 1rem;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}
.button:hover { background: var(--accent-dark); }
.button.secondary { background: #eef3ff; color: var(--accent-dark); border: 1px solid #b9c8f5; }
.button.secondary:hover { background: #dde8ff; }
.small-note { color: var(--muted); font-size: .95rem; margin-bottom: 0; }
ul { margin: 0; padding-left: 1.2rem; }
footer { padding: 32px 0 56px; color: var(--muted); }
@media (max-width: 720px) {
  .hero { padding-top: 48px; }
  .card { grid-template-columns: 1fr; }
  .button { width: 100%; }
}