:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --border: #dde1e6;
  --text: #1a1d21;
  --text-dim: #6b7280;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --select: rgba(37, 99, 235, 0.10);
  --select-strong: rgba(37, 99, 235, 0.18);
  --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(--text);
}

.hidden { display: none !important; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-icon { font-size: 22px; }
.brand h1 { font-size: 18px; margin: 0; }
.search-box {
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  min-width: 220px;
}
.search-box:focus { outline: none; border-color: var(--accent); }

.breadcrumb {
  max-width: 1040px;
  margin: 20px auto 0;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--text-dim);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-left: auto;
  margin-right: auto;
}
.breadcrumb-inner { max-width: 1040px; margin: 0 auto; padding: 0 24px; }
.breadcrumb a { color: var(--accent); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { margin: 0 6px; opacity: 0.6; }
.breadcrumb .current { color: var(--text); font-weight: 600; }

.content { max-width: 1040px; margin: 12px auto 40px; padding: 0 24px; }

.state {
  text-align: center;
  color: var(--text-dim);
  padding: 48px 0;
  font-size: 14px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(108px, 1fr));
  gap: 4px;
  padding: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
  padding: 14px 6px 10px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
  border: 1px solid transparent;
}
.tile:hover { background: var(--select); }
.tile:active { background: var(--select-strong); }

.tile-icon {
  font-size: 46px;
  line-height: 1;
  filter: drop-shadow(0 1px 1px rgba(0,0,0,0.08));
}
.tile.is-up .tile-icon { opacity: 0.55; }
.up-badge {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tile-name {
  font-size: 12.5px;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
  max-width: 100%;
}

@media (max-width: 600px) {
  .topbar { flex-wrap: wrap; }
  .search-box { min-width: 0; flex: 1; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(84px, 1fr)); }
  .tile-icon { font-size: 38px; }
}