/* ==========================================================================
   etbase.css — ETBASE 歷屆畢業專題資料庫
   沿用主站設計系統（theme.css / pages.css），只加資料庫專用的版面
   ========================================================================== */

/* ---------- 資料庫頁首 ---------- */
.db-hero{
  position:relative; background:var(--brand-deep); color:#fff; overflow:hidden;
  padding:56px 0 44px;
}
.db-hero::before{
  content:""; position:absolute; right:-6%; top:-70%; width:44%; aspect-ratio:1; border-radius:50%;
  background:radial-gradient(circle at 40% 60%, rgba(26,95,168,.5), transparent 68%);
}
.db-hero .wrap{position:relative; z-index:2}
.db-hero__logo{height:44px; width:auto; margin-bottom:22px}
.db-hero h1{font-family:var(--font-display); font-size:clamp(27px,3.2vw,38px); font-weight:700; margin-bottom:12px}
.db-hero p{color:rgba(255,255,255,.76); max-width:58ch; line-height:1.9}
.db-hero__stats{display:flex; gap:36px; margin-top:28px; flex-wrap:wrap}
.db-hero__stats div{display:flex; align-items:baseline; gap:8px}
.db-hero__stats b{
  font-family:var(--font-num); font-variant-numeric:tabular-nums;
  font-size:30px; font-weight:700; color:#fff; line-height:1;
}
.db-hero__stats span{font-size:13.5px; color:rgba(255,255,255,.6)}

/* ---------- 搜尋列 ---------- */
.db-search{
  position:sticky; top:calc(var(--head-h)); z-index:30;
  background:#fff; border-bottom:1px solid var(--line); padding:16px 0;
  transition:box-shadow .3s var(--ease);
}
.db-search.is-stuck{box-shadow:var(--shadow-2)}
.db-search .wrap{display:flex; gap:14px; align-items:center; flex-wrap:wrap}
.db-search__field{flex:1; min-width:260px; position:relative; display:flex; align-items:center}
.db-search__field svg{position:absolute; left:16px; width:18px; height:18px; color:var(--ink-3); pointer-events:none}
.db-search input{
  width:100%; padding:14px 44px 14px 46px; font-size:16px; font-family:inherit;
  border:1px solid var(--line-2); border-radius:2px; background:var(--bg-alt); color:var(--ink);
}
.db-search input:focus{outline:none; border-color:var(--brand); background:#fff}
.db-search__clear{
  position:absolute; right:10px; width:28px; height:28px; border-radius:50%;
  display:none; align-items:center; justify-content:center; color:var(--ink-3); font-size:18px;
}
.db-search__clear:hover{background:var(--bg-alt-2); color:var(--ink)}
.db-search.has-q .db-search__clear{display:flex}
.db-sort{
  padding:13px 16px; font-size:14.5px; font-family:inherit; border:1px solid var(--line-2);
  border-radius:2px; background:#fff; color:var(--ink); cursor:pointer;
}
.db-filter-toggle{display:none}

/* ---------- 搜尋建議 ---------- */
.db-suggest{
  position:absolute; top:calc(100% + 6px); left:0; right:0; z-index:5;
  background:#fff; border:1px solid var(--line); border-top:2px solid var(--brand);
  box-shadow:var(--shadow-2); padding:6px 0; display:none; max-height:340px; overflow-y:auto;
}
.db-suggest.is-open{display:block}
.db-sg{
  width:100%; display:flex; align-items:center; gap:12px; padding:10px 16px; text-align:left;
  font-size:14.5px; transition:background .15s;
}
.db-sg:hover, .db-sg:focus{background:var(--brand-soft); outline:none}
.db-sg__t{flex:1; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.db-sg__k{flex:none; font-size:12px; color:var(--brand); background:var(--brand-soft); padding:2px 8px; border-radius:2px}
.db-sg__n{flex:none; font-size:12px; color:var(--ink-3); font-variant-numeric:tabular-nums; min-width:20px; text-align:right}

/* 關鍵字高亮 */
mark{background:#FFF0C2; color:inherit; padding:0 1px; border-radius:2px}

/* 可點擊的標籤 */
.db-tag--btn{cursor:pointer; transition:background .2s, color .2s}
.db-tag--btn:hover{background:var(--brand); color:#fff}
.db-count__all{color:var(--ink-3); font-size:13px; margin-left:6px}
.db-empty__tags{display:flex; gap:8px; flex-wrap:wrap; justify-content:center; margin-top:20px}

/* ---------- 版面：左篩選 + 右結果 ---------- */
.db-body{padding:36px 0 90px}
.db-body .wrap{display:grid; grid-template-columns:246px 1fr; gap:44px; align-items:start}

.db-facets{position:sticky; top:calc(var(--head-h) + 84px)}
.db-facets__head{display:flex; align-items:baseline; justify-content:space-between; margin-bottom:18px}
.db-facets__head h2{font-size:13px; letter-spacing:.2em; color:var(--brand-mid); font-weight:700}
.db-reset{font-size:13px; color:var(--ink-3); border-bottom:1px solid transparent}
.db-reset:hover{color:var(--brand); border-color:var(--brand)}
.db-facet{border-top:1px solid var(--line); padding:16px 0}
.db-facet > h3{font-size:14.5px; font-weight:700; margin:0}
.db-facet > h3 button{
  width:100%; display:flex; align-items:center; gap:9px; padding:4px 0;
  font-size:14.5px; font-weight:700; color:var(--ink); text-align:left;
}
.db-facet > h3 button:hover{color:var(--brand)}
.db-facet > h3 .n{
  min-width:19px; height:19px; padding:0 6px; border-radius:10px; background:var(--brand); color:#fff;
  font-size:11.5px; font-weight:700; display:inline-flex; align-items:center; justify-content:center;
}
.db-facet__chev{width:17px; height:17px; margin-left:auto; color:var(--ink-3); transition:transform .3s var(--ease)}
.db-facet.is-open .db-facet__chev{transform:rotate(180deg)}
.db-facet__body{display:none; padding-top:10px}
.db-facet.is-open .db-facet__body{display:block}
.db-facet__q{
  width:100%; padding:8px 11px; margin-bottom:9px; font-size:13.5px; font-family:inherit;
  border:1px solid var(--line-2); border-radius:2px; background:var(--bg-alt); color:var(--ink);
}
.db-facet__q:focus{outline:none; border-color:var(--brand); background:#fff}
.db-facet__none{padding:8px; font-size:13px; color:var(--ink-3)}
.db-facet__more{
  margin-top:8px; padding:7px 8px; font-size:13px; font-weight:600; color:var(--brand-mid);
  border-bottom:1px solid transparent;
}
.db-facet__more:hover{border-color:var(--brand-mid)}
.db-facet ul{display:flex; flex-direction:column; gap:2px}
.db-facet label{
  display:flex; align-items:center; gap:9px; padding:6px 8px; border-radius:2px;
  font-size:14px; color:var(--ink-2); cursor:pointer; transition:background .2s;
}
.db-facet label:hover{background:var(--brand-soft)}
.db-facet input{accent-color:var(--brand); width:15px; height:15px; flex:none; cursor:pointer}
.db-facet label span{flex:1; min-width:0}
.db-facet label b{font-size:12px; color:var(--ink-3); font-weight:500; font-variant-numeric:tabular-nums}
.db-facet label.is-off{opacity:.4}

/* ---------- 結果 ---------- */
.db-results__bar{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  flex-wrap:wrap; margin-bottom:20px; padding-bottom:16px; border-bottom:1px solid var(--line);
}
.db-count{font-size:14.5px; color:var(--ink-2)}
.db-count b{font-family:var(--font-num); font-variant-numeric:tabular-nums; color:var(--brand); font-size:19px; font-weight:700}
.db-chips{display:flex; gap:8px; flex-wrap:wrap}
.db-chip{
  display:inline-flex; align-items:center; gap:7px; padding:5px 10px 5px 12px;
  background:var(--brand-soft); color:var(--brand); border-radius:2px; font-size:13px; font-weight:600;
}
.db-chip button{color:var(--brand); opacity:.6; font-size:15px; line-height:1; padding:0 2px}
.db-chip button:hover{opacity:1}

.db-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:26px}
.db-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden;
  display:flex; flex-direction:column; text-align:left; padding:0; cursor:pointer;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
}
.db-card:hover{transform:translateY(-4px); box-shadow:var(--shadow-2); border-color:transparent}
.db-card__media{position:relative; aspect-ratio:16/9; background:var(--bg-alt-2); overflow:hidden}
.db-card__media img{width:100%; height:100%; object-fit:cover; transition:transform .6s var(--ease)}
.db-card:hover .db-card__media img{transform:scale(1.05)}
.db-card__ph{
  position:absolute; inset:0; display:flex; align-items:center; justify-content:center; padding:18px;
  background:linear-gradient(135deg, var(--brand) 0%, var(--brand-mid) 100%);
  color:rgba(255,255,255,.9); font-family:var(--font-head); font-weight:700; font-size:17px;
  text-align:center; line-height:1.5;
}
.db-card__badge{
  position:absolute; top:10px; left:10px; z-index:2; display:flex; gap:6px; flex-wrap:wrap;
}
.db-card__badge span{
  background:rgba(8,39,68,.86); color:#fff; font-size:11.5px; font-weight:600;
  padding:4px 9px; border-radius:2px; letter-spacing:.04em; backdrop-filter:blur(2px);
}
.db-card__badge .gold{background:var(--accent)}
.db-card__body{padding:20px 20px 22px; display:flex; flex-direction:column; flex:1}
.db-card__title{
  font-family:var(--font-head); font-size:17px; font-weight:700; line-height:1.5;
  margin-bottom:10px; transition:color .25s;
}
.db-card:hover .db-card__title{color:var(--brand-mid)}
.db-card__meta{font-size:13px; color:var(--ink-3); line-height:1.75; margin-bottom:12px}
.db-card__brief{
  font-size:13.5px; color:var(--ink-2); line-height:1.8; flex:1;
  display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden;
}
.db-card__tags{display:flex; gap:6px; flex-wrap:wrap; margin-top:14px; padding-top:14px; border-top:1px solid var(--line)}
.db-tag{font-size:11.5px; padding:3px 8px; border-radius:2px; background:var(--bg-alt); color:var(--ink-3)}
.db-tag--kind{background:var(--brand-soft); color:var(--brand); font-weight:600}

.db-empty{padding:70px 20px; text-align:center; color:var(--ink-3)}
.db-empty b{display:block; font-family:var(--font-head); font-size:19px; font-weight:700; color:var(--ink); margin-bottom:10px}

/* ---------- 詳情視窗 ---------- */
.db-modal{
  position:fixed; inset:0; z-index:200; background:rgba(8,39,68,.6); backdrop-filter:blur(4px);
  display:flex; align-items:flex-start; justify-content:center; padding:6vh 20px 20px;
  opacity:0; visibility:hidden; transition:opacity .3s var(--ease), visibility .3s; overflow-y:auto;
}
.db-modal.is-open{opacity:1; visibility:visible}
.db-modal__panel{
  position:relative; width:100%; max-width:840px; background:#fff; border-radius:var(--radius);
  box-shadow:var(--shadow-3); transform:translateY(-16px); transition:transform .35s var(--ease);
  margin-bottom:6vh;
}
.db-modal.is-open .db-modal__panel{transform:none}
.db-modal__close{
  position:absolute; top:14px; right:16px; z-index:3; width:38px; height:38px; border-radius:50%;
  background:rgba(255,255,255,.92); color:var(--ink); font-size:22px; line-height:1;
  display:flex; align-items:center; justify-content:center; box-shadow:var(--shadow-1);
}
.db-modal__close:hover{background:var(--brand); color:#fff}
.db-modal__media{aspect-ratio:16/9; background:#000; border-radius:var(--radius) var(--radius) 0 0; overflow:hidden}
.db-modal__media iframe{width:100%; height:100%; border:0; display:block}
.db-modal__body{padding:32px 34px 36px}
.db-modal__term{font-size:13px; font-weight:700; letter-spacing:.16em; color:var(--brand-mid); margin-bottom:12px}
.db-modal__body h2{font-family:var(--font-display); font-size:27px; font-weight:700; line-height:1.4; margin-bottom:18px}
.db-modal__brief{color:var(--ink-2); line-height:1.95; white-space:pre-line; margin-bottom:26px}
.db-modal dl{
  display:grid; grid-template-columns:96px 1fr; gap:12px 20px; margin:0;
  padding-top:22px; border-top:1px solid var(--line); font-size:14.5px;
}
.db-modal dt{color:var(--ink-3); font-size:13.5px}
.db-modal dd{margin:0; color:var(--ink)}
.db-modal dd .db-tag{margin:0 6px 6px 0; display:inline-block}
.db-modal__awards{display:flex; gap:10px; flex-wrap:wrap; margin-bottom:20px}
.db-award{
  display:inline-flex; align-items:center; gap:7px; padding:6px 13px; border-radius:2px;
  background:var(--accent-soft); color:#7A5C12; font-size:13px; font-weight:600;
}

/* ---------- 響應式 ---------- */
@media (max-width:1100px){ .db-grid{grid-template-columns:repeat(2,1fr)} }
@media (max-width:900px){
  .db-body .wrap{grid-template-columns:1fr; gap:0}
  .db-facets{
    position:fixed; inset:0; z-index:120; background:#fff; max-height:none; overflow-y:auto;
    padding:20px var(--gut) 90px; transform:translateX(-100%); transition:transform .35s var(--ease);
  }
  .db-facets.is-open{transform:none}
  .db-facets__head{position:sticky; top:0; background:#fff; padding:8px 0 14px; margin:0 0 8px; z-index:2}
  .db-filter-toggle{
    display:inline-flex; align-items:center; gap:9px; padding:13px 20px; border:1px solid var(--line-2);
    border-radius:2px; font-size:14.5px; font-weight:600; background:#fff;
  }
  .db-filter-toggle b{
    min-width:20px; height:20px; padding:0 6px; border-radius:10px; background:var(--brand); color:#fff;
    font-size:12px; display:inline-flex; align-items:center; justify-content:center;
  }
  .db-facets__done{
    position:fixed; left:var(--gut); right:var(--gut); bottom:20px; z-index:3;
    padding:15px; background:var(--brand); color:#fff; border-radius:2px;
    font-size:15px; font-weight:600; text-align:center; box-shadow:var(--shadow-2);
  }
}
@media (min-width:901px){ .db-facets__done{display:none} }
@media (max-width:640px){
  .db-grid{grid-template-columns:1fr}
  .db-modal{padding:0}
  .db-modal__panel{max-width:none; border-radius:0; margin-bottom:0; min-height:100vh}
  .db-modal__media{border-radius:0}
  .db-modal__body{padding:26px 20px 40px}
  .db-modal dl{grid-template-columns:1fr; gap:4px 0}
  .db-modal dt{margin-top:12px}
}