:root {
  color-scheme: light;
  --bg: #f5f7fa;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #dbe2ea;
  --accent: #0b63f6;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.page {
  min-height: 100vh;
  padding: 28px 16px;
}

.center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.container {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.brand {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

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

.nav a:hover {
  text-decoration: underline;
}

.locale-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  align-items: center;
}

.locale-label {
  font-size: 0.9rem;
  color: var(--muted);
}

.locale-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.locale-pill {
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.82rem;
}

.locale-pill.active {
  background: #e8f0ff;
  border-color: #9cbcff;
  color: #0a4bcc;
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: 2rem;
  line-height: 1.2;
}

.intro {
  margin: 10px 0 8px;
  color: var(--muted);
  line-height: 1.5;
}

.meta {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 0.9rem;
}

.section {
  margin: 0 0 18px;
}

.section h2 {
  margin: 0 0 8px;
  font-size: 1.13rem;
}

.section p {
  margin: 0 0 10px;
  line-height: 1.55;
}

.section ul {
  margin: 0 0 12px 20px;
  padding: 0;
}

.section li {
  margin: 0 0 6px;
  line-height: 1.5;
}

.footer {
  margin-top: 24px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer a {
  color: var(--accent);
}

.redirect-link {
  color: var(--accent);
  word-break: break-all;
}

.small {
  font-size: 0.9rem;
  color: var(--muted);
}

.hidden {
  display: none;
}

@media (max-width: 640px) {
  .card {
    padding: 18px;
  }

  h1 {
    font-size: 1.6rem;
  }
}