:root {
  --bg: #f6f8fa;
  --card: #ffffff;
  --text: #0f1f33;
  --muted: #5a6b7d;
  --border: #dde4ea;
  --brand: #0b6e8c;
  --brand-soft: #e3f1f5;
  --navy: #12305a;
  --hero: linear-gradient(135deg, #0b6e8c 0%, #12305a 100%);
  --warn-bg: #fff6e6;
  --warn-text: #7a4b00;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c141d;
    --card: #142030;
    --text: #e8eef4;
    --muted: #9db0c2;
    --border: #23344a;
    --brand: #4cc3e0;
    --brand-soft: #16303f;
    --navy: #e8eef4;
    --hero: linear-gradient(135deg, #0b5d77 0%, #10264a 100%);
    --warn-bg: #2a2110;
    --warn-text: #f3cf8a;
    color-scheme: dark;
  }
}

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

.wrap { max-width: 920px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header { background: var(--card); border-bottom: 1px solid var(--border); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
.logo img { display: block; width: 190px; }
.logo .dark { display: none; }
@media (prefers-color-scheme: dark) { .logo .light { display: none; } .logo .dark { display: block; } }
nav { display: flex; gap: 20px; flex-wrap: wrap; }
nav a { text-decoration: none; font-weight: 600; font-size: 15px; }
nav a[aria-current="page"] { text-decoration: underline; text-underline-offset: 6px; }

/* Hero */
.hero { background: var(--hero); color: #fff; padding: 64px 0 56px; }
.hero .kicker { text-transform: uppercase; letter-spacing: .12em; font-size: 13px; font-weight: 700; opacity: .85; margin: 0 0 10px; }
.hero h1 { font-size: clamp(32px, 6vw, 48px); line-height: 1.1; letter-spacing: -.02em; margin: 0 0 16px; }
.hero p.lead { font-size: 19px; max-width: 620px; margin: 0 0 28px; opacity: .95; }
.badges { display: flex; gap: 12px; flex-wrap: wrap; }
.badge { display: inline-flex; flex-direction: column; justify-content: center; min-width: 190px; padding: 10px 18px; border-radius: 12px; background: rgba(0,0,0,.28); border: 1px solid rgba(255,255,255,.35); color: #fff; text-decoration: none; }
.badge small { font-size: 12px; opacity: .85; }
.badge strong { font-size: 18px; }

/* Content */
main { padding: 40px 0 56px; }
section + section { margin-top: 44px; }
h2 { font-size: 26px; letter-spacing: -.01em; margin: 0 0 14px; }
h3 { font-size: 18px; margin: 0 0 6px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 20px 22px; }
.card p { margin: 0; color: var(--muted); font-size: 16px; }
.icon { width: 40px; height: 40px; border-radius: 10px; background: var(--brand-soft); color: var(--brand); display: grid; place-items: center; font-weight: 800; font-size: 20px; margin-bottom: 12px; }
.notice { background: var(--warn-bg); color: var(--warn-text); border-radius: 12px; padding: 16px 20px; font-size: 15px; }
.about { display: grid; grid-template-columns: 1fr; gap: 8px; }

/* Legal pages */
.doc { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 28px clamp(20px, 4vw, 40px); }
.doc h1 { font-size: 32px; letter-spacing: -.01em; margin: 0 0 4px; }
.doc .meta { color: var(--muted); margin: 0 0 24px; font-size: 15px; }
.doc h2 { font-size: 21px; margin: 28px 0 8px; }
.doc ul { padding-left: 22px; }
.doc li + li { margin-top: 4px; }
details { border-top: 1px solid var(--border); padding: 14px 0; }
details:last-of-type { border-bottom: 1px solid var(--border); }
summary { cursor: pointer; font-weight: 600; }
details p { margin: 8px 0 0; color: var(--muted); }

/* Footer */
footer { border-top: 1px solid var(--border); background: var(--card); color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap; padding-top: 22px; padding-bottom: 22px; }
footer nav a { font-weight: 500; font-size: 14px; }