/* 基礎樣式（功能版）。視覺設計請在此檔重做，不要改 class 名稱。 */
:root {
  --bg: #1d1a16;
  --panel: #2a2620;
  --line: #4a4237;
  --text: #efe6d4;
  --muted: #a89b84;
  --gold: #e0b34a;
  --age1: #8a7a5c;
  --age2: #5d8a5c;
  --age3: #5c7fa8;
  --age4: #a85c8a;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 system-ui, "PingFang TC", sans-serif; }
.top { padding: 16px; border-bottom: 1px solid var(--line); }
.top h1 { margin: 0 0 12px; font-size: 22px; }
.civs { display: flex; flex-wrap: wrap; gap: 8px; }
.civ-btn { background: var(--panel); color: var(--text); border: 1px solid var(--line); padding: 8px 14px; border-radius: 6px; cursor: pointer; display: flex; flex-direction: column; align-items: flex-start; }
.civ-btn.active { border-color: var(--gold); box-shadow: 0 0 0 1px var(--gold) inset; }
.civ-sub { font-size: 12px; color: var(--muted); }
.ages { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 12px 0 0; padding: 0; }
.age-chip { padding: 4px 10px; border-radius: 4px; border: 1px solid var(--line); display: flex; gap: 6px; align-items: baseline; }
.age-chip small { color: var(--muted); }
.age-chip.age-1 { border-left: 4px solid var(--age1); }
.age-chip.age-2 { border-left: 4px solid var(--age2); }
.age-chip.age-3 { border-left: 4px solid var(--age3); }
.age-chip.age-4 { border-left: 4px solid var(--age4); }

.tree { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; padding: 16px 16px 140px; }
.building { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 10px; }
.building-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.building-head h3 { margin: 0; font-size: 16px; }
.building-head small { color: var(--muted); }
.items { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.item { display: flex; align-items: center; gap: 8px; padding: 5px 8px; border-radius: 4px; border-left: 4px solid var(--age1); background: rgba(255,255,255,.03); cursor: pointer; }
.item:hover, .item:focus { background: rgba(255,255,255,.09); outline: none; }
.item.age-2 { border-left-color: var(--age2); }
.item.age-3 { border-left-color: var(--age3); }
.item.age-4 { border-left-color: var(--age4); }
.item.kind-unit .item-name { font-weight: 600; }
.item.unique { box-shadow: 0 0 0 1px var(--gold) inset; }
.item.unavailable { opacity: .3; text-decoration: line-through; }
.item-age { font: 700 11px Georgia, "Times New Roman", serif; color: var(--muted); width: 26px; text-align: center; letter-spacing: .5px; }
.age-roman { font: 700 14px Georgia, "Times New Roman", serif; letter-spacing: 1px; min-width: 26px; text-align: center; padding: 0 6px; border-radius: 3px; color: #14110e; background: var(--gold, #c9a45c); }

.detail { position: fixed; left: 0; right: 0; bottom: 0; background: #14110e; border-top: 1px solid var(--gold); padding: 12px 16px; min-height: 100px; }
.detail h2 { margin: 0 0 4px; font-size: 18px; }
.detail p { margin: 2px 0; color: var(--muted); }
.detail .who { color: var(--gold); }

/* 選了某一國：種族說明 */
.civinfo{margin:10px 16px 0;padding:12px 16px;border:1px solid var(--civ,#b59150);border-left:6px solid var(--civ,#b59150);border-radius:10px;background:rgba(30,24,16,.88);color:#efe3c4;font-size:14px;line-height:1.6}
.civinfo .ci-head{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:baseline}
.civinfo .ci-name{font-size:18px;color:#ffe08a;letter-spacing:1px}
.civinfo .ci-role{padding:1px 10px;border-radius:10px;background:var(--civ,#b59150);color:#fff;font-size:12px}
.civinfo .ci-style{margin:6px 0;color:#d8cdb4}
.civinfo .ci-sec h3{margin:8px 0 2px;font-size:14px;color:#f0d488}
.civinfo ul{margin:0;padding-left:20px}
.civinfo li.plan{color:#cfc3a8}
.civinfo .ci-tag{margin-left:6px;padding:0 6px;border:1px solid #8d7746;border-radius:8px;font-style:normal;font-size:11px;color:#c9b88d}
.civinfo .ci-note{margin:8px 0 0;font-size:12px;color:#9d917a}

/* 詳情裡的基本數值表 */
.detail .stats{margin-top:8px;padding-top:6px;border-top:1px solid #4a3f2c}
.detail .stats h3{margin:0 0 4px;font-size:13px;color:#f0d488}
.detail .st-row{display:flex;gap:10px;font-size:13px;line-height:1.6}
.detail .st-k{min-width:64px;color:#a99c82}
.detail .st-v{color:#efe3c4}
.detail .st-note{margin:4px 0 0;font-size:11px;color:#8d8170}