:root {
  --bg: #fbfaf7;
  --bg2: #f1efe9;
  --ink: #1d232b;
  --ink2: #4b5563;
  --line: #dcd8cf;
  --accent: #1f5f8b;
  --accent-ink: #ffffff;
  --mark: #c2410c;
  --radius: 10px;
  --max: 920px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161b;
    --bg2: #1a2028;
    --ink: #e8eaed;
    --ink2: #a3acb8;
    --line: #2c3540;
    --accent: #6fb1e0;
    --accent-ink: #0d1217;
    --mark: #f59e5b;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--accent); }
a:hover { text-decoration-thickness: 2px; }
img, svg { max-width: 100%; height: auto; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* header */
.site-header { border-bottom: 1px solid var(--line); }
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 8px 24px; padding-top: 16px; padding-bottom: 16px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 19px; letter-spacing: .01em;
  color: var(--ink); text-decoration: none;
}
.brand svg { width: 30px; height: 30px; flex: none; }
.nav { display: flex; flex-wrap: wrap; gap: 4px 20px; font-size: 15px; }
.nav a { color: var(--ink2); text-decoration: none; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }
.nav a[aria-current="page"] { font-weight: 600; }

/* content */
main { padding: 48px 0 64px; }
h1 { font-size: clamp(30px, 5vw, 42px); line-height: 1.15; margin: 0 0 16px; letter-spacing: -.01em; }
h2 { font-size: 23px; line-height: 1.3; margin: 40px 0 10px; }
h3 { font-size: 18px; margin: 24px 0 6px; }
p, ul, ol { margin: 0 0 14px; }
li { margin-bottom: 6px; }
.lede { font-size: 20px; color: var(--ink2); max-width: 680px; }
.muted { color: var(--ink2); }
.small { font-size: 14px; }

.hero { display: grid; gap: 32px; align-items: center; }
@media (min-width: 760px) { .hero { grid-template-columns: 1.1fr 1fr; } }
.hero-art {
  background: var(--bg2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px;
}

.cards { display: grid; gap: 16px; margin-top: 20px; }
@media (min-width: 640px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 880px) { .cards.three { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: var(--bg2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 20px;
}
.card h3 { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }

.btn {
  display: inline-block; padding: 10px 18px; border-radius: 999px;
  background: var(--accent); color: var(--accent-ink); font-weight: 600;
  text-decoration: none; font-size: 16px;
}
.btn:hover { filter: brightness(1.08); }
.badge {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .03em;
  text-transform: uppercase; color: var(--mark);
  border: 1px solid currentColor; border-radius: 999px; padding: 2px 10px; margin-bottom: 14px;
}

.notice {
  border-left: 4px solid var(--mark); background: var(--bg2);
  padding: 12px 16px; border-radius: 0 var(--radius) var(--radius) 0; margin: 0 0 24px;
  font-size: 15px;
}
.legal { max-width: 740px; }
.legal h2 { font-size: 20px; margin-top: 32px; }

/* footer */
.site-footer { border-top: 1px solid var(--line); padding: 24px 0 40px; font-size: 14px; color: var(--ink2); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; }
.site-footer a { color: var(--ink2); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 4px 16px; }