:root {
  --bg: #f7f7f8;
  --surface: #ffffff;
  --ink: #16181d;
  --muted: #6b7280;
  --border: #e5e7eb;
  --brand: #dc2626;
  --accent: #dc2626;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

a { color: inherit; text-decoration: none; }

/* Header */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 14px 20px;
}

.brand { display: flex; flex-direction: column; }
.brand-mark { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.02em; }
.brand-mark .accent { color: var(--brand); }
.brand-tagline { font-size: 0.78rem; color: var(--muted); }

.main-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.main-nav a {
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
}
.main-nav a:hover { background: var(--bg); color: var(--ink); }
.main-nav a.active { background: var(--brand); color: #fff; }

/* Hero */
.hero { padding: 32px 0 8px; }
.hero h1 { font-size: 2rem; margin: 0 0 6px; letter-spacing: -0.01em; }
.hero .lede { color: var(--muted); margin: 0; max-width: 640px; }

/* Filter tabs */
.filter-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 20px 0;
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
}
.filter-tabs a {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  background: var(--surface);
}
.filter-tabs a.active { background: var(--ink); color: #fff; border-color: var(--ink); }

/* Topics / pills */
.topics-section { margin: 28px 0; }
.topics-section h2, .items-section h2 {
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 12px;
}
.pill-list { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.88rem;
  font-weight: 600;
}
.pill:hover { border-color: var(--brand); color: var(--brand); }
.pill-count { font-size: 0.75rem; color: var(--muted); font-weight: 500; }

/* Cards */
.items-section { margin: 28px 0 48px; }
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.card h3 { margin: 0; font-size: 1.02rem; line-height: 1.35; }
.card h3 a:hover { color: var(--brand); }
.card .summary { margin: 0; font-size: 0.88rem; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.card .meta { font-size: 0.8rem; color: var(--muted); display: flex; gap: 6px; align-items: center; }

.badge {
  display: inline-block;
  align-self: flex-start;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 3px 9px;
  border-radius: 999px;
}

.empty-state { color: var(--muted); background: var(--surface); border: 1px dashed var(--border); border-radius: var(--radius); padding: 24px; }
.empty-state code { background: var(--bg); padding: 2px 6px; border-radius: 4px; }

/* About page */
.about-content { max-width: 720px; margin: 20px 0 60px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 28px; }
.about-content h2 { font-size: 1.1rem; margin-top: 24px; }
.about-content h2:first-child { margin-top: 0; }
.about-content ul { padding-left: 20px; }
.about-content li { margin-bottom: 6px; }

/* Admin login */
.login-form form { display: flex; flex-direction: column; gap: 10px; max-width: 280px; }
.login-form label { font-size: 0.85rem; color: var(--muted); }
.login-form input { padding: 8px 10px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 0.95rem; }
.login-form button { padding: 9px 14px; border: none; border-radius: var(--radius); background: var(--brand); color: #fff; font-weight: 600; cursor: pointer; }
.login-form button:hover { opacity: 0.9; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 0 40px;
  color: var(--muted);
  font-size: 0.82rem;
}
.site-footer a { text-decoration: underline; }
.muted { color: var(--muted); }

@media (max-width: 640px) {
  .header-inner { flex-direction: column; align-items: flex-start; }
  .hero h1 { font-size: 1.5rem; }
}