:root {
  --bg: #1a1a1a;
  --panel: #242424;
  --panel-2: #2d2d2d;
  --border: #3a3a3a;
  --text: #e0e0e0;
  --muted: #888;
  --accent: #3a7bd5;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-size: 14px;
}

.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 16px;
  padding: 10px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.brand { color: var(--text); text-decoration: none; font-weight: 700; font-size: 16px; white-space: nowrap; }

.ai-search { flex: 1; max-width: 520px; margin: 0; }
.ai-search input {
  width: 100%; background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 18px;
  padding: 8px 16px; font-size: 13px;
}
.ai-search input:focus { outline: none; border-color: var(--accent); }

.authnav { display: flex; align-items: center; gap: 14px; white-space: nowrap; }
.authnav a { color: var(--muted); text-decoration: none; font-size: 13px; }
.authnav a:hover { color: var(--text); }
.authnav a.btn {
  background: var(--accent); color: #fff; padding: 6px 14px; border-radius: 16px;
}
.authnav a.btn:hover { color: #fff; opacity: .9; }

.auth-box { max-width: 360px; margin: 48px auto; background: var(--panel);
  border: 1px solid var(--border); border-radius: 10px; padding: 26px; }
.auth-box h1 { font-size: 18px; margin: 0 0 18px; }
.auth-box form { display: flex; flex-direction: column; gap: 10px; }
.auth-box input {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--border);
  border-radius: 6px; padding: 10px 12px; font-size: 14px;
}
.auth-box input:focus { outline: none; border-color: var(--accent); }
.auth-box button {
  background: var(--accent); color: #fff; border: none; border-radius: 6px;
  padding: 10px; font-size: 14px; cursor: pointer; margin-top: 4px;
}
.auth-box .muted { margin-top: 16px; font-size: 12px; }
.auth-box .muted a { color: var(--accent); text-decoration: none; }
.auth-error { color: #ff6b6b; font-size: 13px; margin: 0 0 14px; }
.auth-ok { color: #5fc77f; font-size: 13px; margin: 0 0 14px; }

main { padding: 16px; }

.filters {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  margin-bottom: 16px;
}
.filters input[type=search], .filters select, .filters button {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 7px 10px; font-size: 13px;
}
.filters input[type=search] { min-width: 220px; }
.filters button { background: var(--accent); border-color: var(--accent); cursor: pointer; }
.filters .clear { color: var(--muted); text-decoration: none; padding: 0 4px; }
.filters .count { margin-left: auto; color: var(--muted); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}
.cell {
  display: flex; flex-direction: column; align-items: center;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px; text-decoration: none; color: var(--text);
  transition: border-color .12s, transform .12s;
}
.cell:hover { border-color: var(--accent); transform: translateY(-2px); }
.cell img {
  width: 100%; height: 130px; object-fit: contain;
  background: #141414; border-radius: 4px;
}
.cell .name {
  margin-top: 6px; font-size: 11px; color: var(--muted);
  max-width: 100%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.pager {
  display: flex; align-items: center; justify-content: center; gap: 16px;
  margin: 24px 0; color: var(--muted);
}
.pager a { color: var(--accent); text-decoration: none; }

.empty { color: var(--muted); text-align: center; margin-top: 48px; }

.sentinel { grid-column: 1 / -1; height: 1px; }

/* ── Detail page ── */
.back { color: var(--accent); text-decoration: none; font-size: 13px; }
.detail {
  display: flex; flex-wrap: wrap; gap: 24px; margin: 14px 0 8px;
}
.detail-img {
  flex: 1 1 420px; max-width: 640px;
  background: #141414; border: 1px solid var(--border); border-radius: 10px;
  display: flex; align-items: center; justify-content: center; padding: 12px;
}
.detail-img img { max-width: 100%; max-height: 70vh; object-fit: contain; }
.detail-meta { flex: 1 1 280px; min-width: 260px; }
.detail-meta h1 { font-size: 18px; margin: 0 0 12px; word-break: break-all; }
.detail-meta dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; margin: 0 0 16px; }
.detail-meta dt { color: var(--muted); font-size: 12px; }
.detail-meta dd { margin: 0; font-size: 13px; }
.detail-meta dd.src { color: var(--muted); font-size: 11px; word-break: break-all; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }
.tag {
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 12px;
  padding: 3px 10px; font-size: 12px; color: var(--text); text-decoration: none;
}
.tag:hover { border-color: var(--accent); }
.muted { color: var(--muted); }
.download {
  display: inline-block; background: var(--accent); color: #fff; text-decoration: none;
  padding: 8px 14px; border-radius: 6px; font-size: 13px;
}
.sim-h { font-size: 14px; color: var(--muted); margin: 28px 0 12px;
  border-top: 1px solid var(--border); padding-top: 18px; }

/* ── Admin ── */
.adminbar { font-size: 13px; }
.detail-meta h3 { font-size: 12px; text-transform: uppercase; letter-spacing: .04em;
  color: var(--muted); margin: 18px 0 8px; }
.stars { display: flex; align-items: center; gap: 2px; }
.stars .star {
  background: none; border: none; cursor: pointer; font-size: 22px;
  color: #555; padding: 0 1px; line-height: 1;
}
.stars .star.on { color: #ffd700; }
.stars .muted { margin-left: 8px; font-size: 12px; }
.tag .x {
  background: none; border: none; color: var(--muted); cursor: pointer;
  font-size: 14px; padding: 0 0 0 4px; line-height: 1;
}
.tag .x:hover { color: #e06; }
.add-tag { display: flex; gap: 6px; margin-top: 10px; }
.add-tag input {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--border);
  border-radius: 6px; padding: 6px 10px; font-size: 13px; min-width: 180px;
}
.add-tag button, .admin-actions .danger {
  background: var(--accent); color: #fff; border: none; border-radius: 6px;
  padding: 7px 12px; font-size: 13px; cursor: pointer;
}
.admin-actions { display: flex; gap: 10px; align-items: center; margin-top: 22px; }
.admin-actions .danger { background: #a32525; }
.admin-actions form { margin: 0; }