:root {
  color-scheme: light;
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --accent: #0ea5e9;
  --accent-soft: #e0f2fe;
  --border: #e2e8f0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 24px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.card {
  max-width: 960px;
  margin: 0 auto;
  background: var(--card);
  border-radius: 14px;
  padding: 28px;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
  border: 1px solid var(--border);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #0369a1;
  font-weight: 600;
  font-size: 13px;
  margin: 0 0 12px;
}

h1 {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 28px;
}

.summary {
  margin: 0 0 16px;
  line-height: 1.6;
  color: var(--muted);
}

.meta {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 18px;
}

.section {
  padding: 16px 0;
  border-top: 1px solid var(--border);
}

.section:first-of-type {
  border-top: none;
}

.section h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.section p {
  margin: 0 0 8px;
  line-height: 1.6;
}

.section ul {
  padding-left: 20px;
  margin: 0 0 8px;
  color: var(--muted);
  line-height: 1.6;
}

.footer {
  padding-top: 18px;
  border-top: 1px solid var(--border);
  margin-top: 12px;
  display: grid;
  gap: 10px;
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.lang-chip {
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #f1f5f9;
  color: #0f172a;
  text-decoration: none;
  font-weight: 600;
}

.lang-chip.current {
  background: var(--accent-soft);
  border-color: #bae6fd;
  color: #0369a1;
}

.cross-link a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.cross-link a:hover {
  text-decoration: underline;
}

.error {
  max-width: 960px;
  margin: 0 auto;
  padding: 16px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
  border-radius: 12px;
}

@media (max-width: 640px) {
  body {
    padding: 16px;
  }

  .card {
    padding: 20px;
  }

  h1 {
    font-size: 24px;
  }
}