:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e222b;
  --border: #2a2f3a;
  --text: #e6e8ec;
  --text-dim: #9aa1ae;
  --accent: #5b8cff;
  --accent-2: #35c98f;
  --warn: #e0a52c;
  --danger: #e05c5c;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

header.topbar .brand { font-weight: 700; font-size: 1.1rem; }
header.topbar nav { display: flex; gap: 18px; }
header.topbar nav a { color: var(--text-dim); font-weight: 500; }
header.topbar nav a:hover { color: var(--text); text-decoration: none; }

main { max-width: 1200px; margin: 0 auto; padding: 24px; }

h1 { font-size: 1.5rem; margin-top: 0; }
h2 { font-size: 1.15rem; border-bottom: 1px solid var(--border); padding-bottom: 6px; }

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

.grid-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 24px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.stat .value { font-size: 1.8rem; font-weight: 700; }
.stat .label { color: var(--text-dim); font-size: 0.85rem; }

.filters-form {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: end;
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; margin-bottom: 20px;
}
.filters-form label { display: flex; flex-direction: column; font-size: 0.8rem; color: var(--text-dim); gap: 4px; }
.filters-form input[type=number] { width: 110px; padding: 6px 8px; background: var(--panel-2); border: 1px solid var(--border); color: var(--text); border-radius: 6px; }
.filters-form select { padding: 6px 8px; background: var(--panel-2); border: 1px solid var(--border); color: var(--text); border-radius: 6px; min-width: 180px; }
.filters-form .checkbox-label { flex-direction: row; align-items: center; gap: 6px; }
.filters-form button {
  background: var(--accent); border: none; color: white; padding: 8px 16px;
  border-radius: 6px; cursor: pointer; font-weight: 600;
}

.catalog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.listing-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
.listing-card img { width: 100%; height: 160px; object-fit: cover; background: var(--panel-2); }
.listing-card .no-photo { width: 100%; height: 160px; display: flex; align-items: center; justify-content: center; color: var(--text-dim); background: var(--panel-2); }
.listing-card .body { padding: 12px 14px; display: flex; flex-direction: column; gap: 4px; flex: 1; }
.listing-card .title { font-weight: 700; }
.listing-card .price { color: var(--accent-2); font-weight: 700; }
.listing-card .meta { color: var(--text-dim); font-size: 0.85rem; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.72rem; font-weight: 600; }
.badge.high { background: rgba(53,201,143,0.15); color: var(--accent-2); }
.badge.medium { background: rgba(224,165,44,0.15); color: var(--warn); }
.badge.low { background: rgba(224,92,92,0.15); color: var(--danger); }

table.spec-table { width: 100%; border-collapse: collapse; margin-bottom: 20px; }
table.spec-table th, table.spec-table td { text-align: left; padding: 6px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
table.spec-table th { color: var(--text-dim); font-weight: 500; width: 40%; }

.photo-gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; margin-bottom: 20px; }
.photo-gallery img { width: 100%; height: 120px; object-fit: cover; border-radius: 6px; border: 1px solid var(--border); }

.note-box { background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; margin-bottom: 10px; white-space: pre-wrap; }
.note-box .author { color: var(--text-dim); font-size: 0.78rem; margin-bottom: 4px; }

.compare-table { width: 100%; border-collapse: collapse; }
.compare-table th, .compare-table td { border: 1px solid var(--border); padding: 8px 10px; text-align: left; vertical-align: top; }
.compare-table th.row-label { color: var(--text-dim); font-weight: 500; background: var(--panel-2); white-space: nowrap; }
.compare-table td img { width: 160px; height: 110px; object-fit: cover; border-radius: 6px; }

.empty-state { color: var(--text-dim); padding: 40px 0; text-align: center; }

.card label { display: flex; flex-direction: column; gap: 4px; font-size: 0.85rem; color: var(--text-dim); }
.card input[type=number] { padding: 7px 9px; background: var(--panel-2); border: 1px solid var(--border); color: var(--text); border-radius: 6px; width: 120px; }
.card button[type=submit] { background: var(--accent); border: none; color: white; padding: 9px 18px; border-radius: 6px; cursor: pointer; font-weight: 600; }