:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel2: #273449;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent2: #4ade80;
  --border: #334155;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}
header { padding: 20px 24px 8px; }
h1 { margin: 0 0 4px; font-size: 24px; }
.muted { color: var(--muted); font-size: 13px; }

.filters {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: end;
  padding: 12px 24px 16px; border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 12px; color: var(--muted); }
.field.checkbox { flex-direction: row; align-items: center; padding-bottom: 8px; }
.field.checkbox label { font-size: 13px; color: var(--text); }
select, input[type=search] {
  background: var(--bg); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 10px; min-width: 170px; font-size: 14px;
}
button {
  background: var(--panel2); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 14px; cursor: pointer; font-size: 14px;
}
button:hover { border-color: var(--accent); }
button:disabled { opacity: .4; cursor: default; }

main { display: grid; grid-template-columns: 340px 1fr; gap: 0; min-height: 60vh; }
#stadium-list {
  border-right: 1px solid var(--border); padding: 12px; overflow-y: auto;
  max-height: calc(100vh - 220px);
}
#stadium-list h2 { font-size: 15px; margin: 4px 8px 10px; color: var(--muted); }
.stadium-item {
  padding: 10px 12px; border-radius: 10px; cursor: pointer; margin-bottom: 6px;
  background: var(--panel);
  border: 1px solid transparent;
}
.stadium-item:hover { border-color: var(--accent); }
.stadium-item.active { border-color: var(--accent); background: var(--panel2); }
.stadium-item .name { font-weight: 600; }
.stadium-item .sub { font-size: 12px; color: var(--muted); }
.stadium-item .cap { color: var(--accent2); font-size: 12px; font-weight: 600; }

#detail { padding: 18px 24px; overflow-x: auto; }
.placeholder { color: var(--muted); max-width: 640px; padding: 40px 0; }
#stadium-card h2 { margin: 0 0 2px; }
.stats { display: flex; flex-wrap: wrap; gap: 12px; margin: 14px 0 4px; }
.stat {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 10px 16px; min-width: 120px;
}
.stat .v { font-size: 20px; font-weight: 700; color: var(--accent); }
.stat .l { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }

.table-wrap { overflow-x: auto; margin-top: 10px; }
table { border-collapse: collapse; width: 100%; font-size: 13.5px; }
th, td { padding: 7px 10px; text-align: left; white-space: nowrap; }
thead th {
  color: var(--muted); font-size: 12px; text-transform: uppercase;
  letter-spacing: .04em; border-bottom: 2px solid var(--border);
  position: sticky; top: 0; background: var(--bg);
}
tbody tr { border-bottom: 1px solid var(--border); }
tbody tr:hover { background: var(--panel); }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
td .att { color: var(--accent2); font-weight: 600; }
td .na { color: var(--muted); }
.fill-bar {
  display: inline-block; width: 64px; height: 8px; background: var(--panel2);
  border-radius: 4px; overflow: hidden; vertical-align: middle; margin-right: 6px;
}
.fill-bar i { display: block; height: 100%; background: var(--accent); }

.pager { display: flex; gap: 14px; align-items: center; padding: 14px 0; }
footer { padding: 14px 24px; border-top: 1px solid var(--border); }

.loading {
  opacity: 0.45;
  pointer-events: none;
  transition: opacity 0.15s ease-in-out;
}

@media (max-width: 900px) {
  main { grid-template-columns: 1fr; }
  #stadium-list { max-height: 300px; border-right: none; border-bottom: 1px solid var(--border); }
}