:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --text: #0f172a;
  --text-secondary: #64748b;
  --primary: #0f172a;
  --accent: #f97316;
  --border: #e2e8f0;
  --max-width: 800px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

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

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.site-header-inner,
main,
.site-footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 20px;
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 1.1rem;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
}

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

main {
  padding-top: 32px;
  padding-bottom: 48px;
}

main h1 {
  margin-top: 0;
  font-size: 2rem;
}

main h2 {
  margin-top: 2rem;
  font-size: 1.25rem;
}

.last-updated {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.hero {
  text-align: center;
  padding: 24px 0 8px;
}

.hero-logo {
  width: min(320px, 100%);
  height: auto;
  margin-bottom: 16px;
}

.hero p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto 24px;
}

.cards {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.card h2 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.card p {
  margin: 0 0 12px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.button {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff !important;
  text-decoration: none;
  font-weight: 600;
}

.button-secondary {
  background: var(--primary);
}