:root {
  --bg: #0f1115;
  --surface: #171a21;
  --surface-2: #1f232c;
  --border: #2a2f3a;
  --text: #e8eaed;
  --text-dim: #9aa1ae;
  --accent: #3b82f6;
  --accent-2: #22c55e;
  --danger: #ef4444;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  padding-bottom: 72px; /* room for bottom nav on mobile */
}

a { color: inherit; }

header.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

header.topbar h1 {
  font-size: 17px;
  margin: 0;
}

header.topbar button {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 14px;
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 16px;
}

.banner {
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-bottom: 16px;
  font-size: 14px;
  display: none;
}
.banner.healthy { display: block; background: rgba(34,197,94,0.12); color: var(--accent-2); border: 1px solid rgba(34,197,94,0.3); }
.banner.expired { display: block; background: rgba(239,68,68,0.12); color: var(--danger); border: 1px solid rgba(239,68,68,0.3); }
.banner.unknown { display: block; background: var(--surface-2); color: var(--text-dim); border: 1px solid var(--border); }

.category-group { margin-bottom: 28px; }
.category-group h2 {
  font-size: 15px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 10px;
}

.listing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
}

.listing-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  transition: transform 0.1s ease, border-color 0.1s ease;
}
.listing-card:hover { border-color: var(--accent); transform: translateY(-2px); }

.listing-card .thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: var(--surface-2);
  display: block;
}

.listing-card .info { padding: 8px 10px; }
.listing-card .price { font-weight: 700; font-size: 15px; }
.listing-card .title {
  font-size: 13px;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.listing-card .meta { font-size: 11px; color: var(--text-dim); margin-top: 4px; }

.empty-state {
  text-align: center;
  color: var(--text-dim);
  padding: 40px 20px;
}

nav.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  background: var(--surface);
  border-top: 1px solid var(--border);
  z-index: 10;
}
nav.bottom-nav a {
  flex: 1;
  text-align: center;
  padding: 12px 0;
  text-decoration: none;
  color: var(--text-dim);
  font-size: 12px;
}
nav.bottom-nav a.active { color: var(--accent); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}

.form-row { margin-bottom: 12px; display: flex; flex-direction: column; gap: 4px; }
.form-row label { font-size: 13px; color: var(--text-dim); }
.form-row input, .form-row select {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  color: var(--text);
  font-size: 15px;
}
.form-row.inline { flex-direction: row; align-items: center; gap: 8px; }

button.primary {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}
button.secondary {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 14px;
  cursor: pointer;
}
button.danger { color: var(--danger); background: transparent; border: 1px solid var(--danger); border-radius: 8px; padding: 6px 10px; font-size: 13px; cursor: pointer; }

.rule-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.rule-row:last-child { border-bottom: none; }
.rule-row .rule-info .label { font-weight: 600; }
.rule-row .rule-info .sub { font-size: 12px; color: var(--text-dim); }
.rule-row .rule-actions { display: flex; gap: 8px; align-items: center; }

.login-wrap {
  max-width: 340px;
  margin: 20vh auto;
  padding: 0 20px;
  text-align: center;
}
.login-wrap h1 { margin-bottom: 24px; }
.login-wrap input {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-size: 16px;
  margin-bottom: 12px;
}
.login-wrap button { width: 100%; }
.login-error { color: var(--danger); font-size: 13px; min-height: 18px; margin-bottom: 8px; }