:root {
  --bg: #0d1117;
  --panel: #111827;
  --panel-soft: #f8fafc;
  --text: #0f172a;
  --muted: #475569;
  --line: #dbe3ef;
  --brand: #0f766e;
  --brand-dark: #115e59;
  --white: #ffffff;
  --max: 1040px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: #ffffff;
  line-height: 1.65;
}
a { color: var(--brand-dark); }
a:hover { color: var(--brand); }
.site-header {
  background: var(--bg);
  color: var(--white);
  padding: 28px 20px;
  border-bottom: 4px solid var(--brand);
}
.header-inner {
  max-width: var(--max);
  margin: 0 auto;
}
.brand {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0;
}
.tagline {
  color: #cbd5e1;
  margin: 6px 0 0;
}
.nav {
  background: #f1f5f9;
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 12px 20px;
}
.nav a {
  text-decoration: none;
  font-size: 0.92rem;
  padding: 8px 10px;
  border-radius: 999px;
  color: #0f172a;
}
.nav a:hover,
.nav a.active {
  background: #d7f5ee;
  color: #064e3b;
}
main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 42px 20px 70px;
}
.hero {
  background: linear-gradient(135deg, #ecfeff, #f8fafc);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  margin-bottom: 30px;
}
.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -0.05em;
}
.hero p { margin: 0; color: var(--muted); max-width: 760px; }
.notice {
  border-left: 5px solid var(--brand);
  background: #f0fdfa;
  padding: 16px 18px;
  margin: 22px 0;
  border-radius: 10px;
}
.doc-meta {
  color: var(--muted);
  font-size: 0.95rem;
}
section {
  border-top: 1px solid var(--line);
  padding-top: 22px;
  margin-top: 28px;
}
h2 {
  font-size: 1.45rem;
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}
h3 {
  margin-top: 22px;
}
ul {
  padding-left: 1.35rem;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  margin-top: 22px;
}
.card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  background: var(--panel-soft);
}
.card h2, .card h3 {
  margin-top: 0;
}
.site-footer {
  background: #0f172a;
  color: #e2e8f0;
  padding: 34px 20px;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 18px 0;
}
.footer-links a {
  color: #a7f3d0;
}
.footer-notice {
  font-size: 0.9rem;
  color: #cbd5e1;
  border-top: 1px solid #334155;
  padding-top: 18px;
  margin-top: 20px;
}
.cookie-banner {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  max-width: 940px;
  margin: 0 auto;
  background: #0f172a;
  color: #fff;
  border: 1px solid #334155;
  box-shadow: 0 10px 30px rgba(0,0,0,.3);
  border-radius: 14px;
  padding: 16px;
  display: none;
  z-index: 1000;
}
.cookie-banner p {
  margin: 0 0 12px;
}
.cookie-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
button, .button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 10px 14px;
  background: var(--brand);
  color: #fff;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
.button.secondary,
button.secondary {
  background: #334155;
}
.small {
  font-size: .92rem;
  color: var(--muted);
}
@media (max-width: 640px) {
  .site-header { padding: 22px 16px; }
  main { padding: 28px 16px 56px; }
  .hero { padding: 22px; }
}