:root{
  --bg:#f6f7fb; --card:#ffffff; --ink:#1e2230; --muted:#6b7390; --line:#e8eaf2;
  --indigo:#6366f1; --violet:#8b5cf6; --pink:#ec4899; --model:#5b5bd6;
  --grad:linear-gradient(120deg,#6366f1 0%,#8b5cf6 45%,#ec4899 100%);
  --shadow:0 1px 2px rgba(20,20,50,.04),0 8px 24px rgba(30,30,70,.06);
  --radius:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);
  color:var(--ink);line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:var(--indigo);text-decoration:none}
a:hover{text-decoration:underline}
.muted{color:var(--muted)}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hidden{display:none !important}

/* ---------- header ---------- */
.site-header{display:flex;align-items:center;justify-content:space-between;
  padding:18px 32px;background:rgba(255,255,255,.8);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:14px}
.prism-mark{width:38px;height:38px;border-radius:11px;background:var(--grad);
  box-shadow:0 6px 18px rgba(124,90,240,.35);position:relative;overflow:hidden}
.prism-mark::after{content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,transparent 40%,rgba(255,255,255,.6) 50%,transparent 60%)}
.brand-text h1{font-size:22px;font-weight:800;margin:0;letter-spacing:-.5px}
.full-name{margin:1px 0 0;font-size:11px;color:var(--muted);font-weight:500;max-width:520px}
.full-name .u{color:var(--ink);font-weight:700}
nav a{margin-left:22px;font-weight:600;font-size:14px;color:var(--ink)}

/* ---------- layout ---------- */
main{max-width:1180px;margin:0 auto;padding:30px 24px 60px}
.intro{margin:8px 4px 22px}
.intro h2{font-size:26px;font-weight:800;letter-spacing:-.6px;margin:0 0 8px}
.intro p{max-width:760px;color:#4a5170;margin:0;font-size:15px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:20px}
.row{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.query-panel .row+.row{margin-top:14px}

/* ---------- segmented controls ---------- */
.seg{display:inline-flex;background:#eef0f7;border-radius:11px;padding:4px}
.seg button{border:0;background:transparent;padding:8px 15px;border-radius:8px;font-weight:600;
  font-size:13.5px;color:var(--muted);cursor:pointer;transition:.15s}
.seg button.active{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(30,30,70,.12)}
.mode-row{justify-content:space-between}

/* ---------- search ---------- */
.search-row{align-items:stretch}
.search-wrap{position:relative;flex:1;min-width:260px}
#query-input{width:100%;padding:13px 16px;border:1.5px solid var(--line);border-radius:12px;
  font-size:15px;font-family:inherit;outline:none;transition:.15s;background:#fff}
#query-input:focus{border-color:var(--violet);box-shadow:0 0 0 4px rgba(139,92,246,.12)}
.suggest{position:absolute;top:calc(100% + 6px);left:0;right:0;background:#fff;border:1px solid var(--line);
  border-radius:12px;box-shadow:var(--shadow);list-style:none;margin:0;padding:6px;max-height:280px;
  overflow:auto;z-index:30}
.suggest li{padding:9px 12px;border-radius:8px;cursor:pointer;font-size:14px;font-weight:500}
.suggest li:hover,.suggest li.active{background:#f1f0fe;color:var(--indigo)}
.topk{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.topk select{padding:11px;border:1.5px solid var(--line);border-radius:10px;background:#fff;font-family:inherit}
button.primary{background:var(--grad);color:#fff;border:0;padding:13px 26px;border-radius:12px;
  font-weight:700;font-size:15px;cursor:pointer;box-shadow:0 6px 18px rgba(124,90,240,.3);transition:.15s}
button.primary:hover{filter:brightness(1.05);transform:translateY(-1px)}
button.primary:disabled{opacity:.6;cursor:wait;transform:none}

/* ---------- upload ---------- */
.file-btn{display:inline-flex;align-items:center;padding:11px 18px;border:1.5px dashed #c7cada;
  border-radius:11px;cursor:pointer;font-weight:600;font-size:14px;color:var(--muted);background:#fcfcff}
.file-btn:hover{border-color:var(--violet);color:var(--indigo)}
.hint-row{font-size:14px}
.sep{display:inline-block}

/* ---------- status ---------- */
.status{margin-top:18px;padding:14px 18px;border-radius:12px;font-weight:600;font-size:14px}
.status.load{background:#eef0ff;color:#4338ca}
.status.err{background:#fff0f1;color:#c0334b}

/* ---------- results ---------- */
#results{margin-top:26px}
.results-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;flex-wrap:wrap;gap:12px}
.summary{display:flex;gap:10px;flex-wrap:wrap}
.chip{background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px 13px;font-size:13px;
  font-weight:600;box-shadow:var(--shadow)}
.chip b{color:var(--indigo)}
button.ghost{background:#fff;border:1.5px solid var(--line);border-radius:10px;padding:10px 16px;
  font-weight:600;cursor:pointer;font-size:14px}
button.ghost:hover{border-color:var(--violet);color:var(--indigo)}

.cov-banner{margin-bottom:14px;padding:11px 16px;border-radius:11px;font-size:13.5px;font-weight:500;
  background:#fff7ed;border:1px solid #fed7aa;color:#9a5b1e}
.pager{display:flex;align-items:center;justify-content:center;gap:8px;padding:12px 8px;font-size:13px;color:var(--muted)}
.pager button{border:1px solid var(--line);background:#fff;border-radius:8px;padding:6px 12px;font-weight:600;
  cursor:pointer;color:var(--ink)}
.pager button:hover:not(:disabled){border-color:var(--violet);color:var(--indigo)}
.pager button:disabled{opacity:.4;cursor:default}
.pager .pinfo{min-width:130px;text-align:center}
.grid{display:grid;grid-template-columns:1.35fr .9fr;gap:20px}
@media(max-width:980px){.grid{grid-template-columns:1fr}}
.table-panel{padding:6px;overflow:hidden}
table{width:100%;border-collapse:collapse;font-size:13.5px}
thead th{text-align:left;padding:12px 10px;color:var(--muted);font-weight:600;font-size:12px;
  text-transform:uppercase;letter-spacing:.4px;border-bottom:1px solid var(--line);white-space:nowrap}
th.num{text-align:right}
th.sortable{cursor:pointer;user-select:none}
th.sortable:hover{color:var(--indigo)}
tbody td{padding:11px 10px;border-bottom:1px solid #f1f2f8;vertical-align:middle}
tbody tr{cursor:pointer;transition:background .12s}
tbody tr:hover{background:#faf9ff}
tbody tr.sel{background:#f1f0fe}
td.num{text-align:right;font-variant-numeric:tabular-nums;font-family:"JetBrains Mono",monospace;font-size:12.5px}
td.name{font-weight:600}
.rsbar{position:relative;display:flex;align-items:center;gap:8px;justify-content:flex-end}
.rsbar .bar{height:7px;border-radius:4px;background:var(--grad);min-width:3px}
.rsbar .val{font-family:"JetBrains Mono",monospace;font-size:12px;min-width:46px;text-align:right}
.dash{color:#c2c6d6}
.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:11px;font-weight:700}
.badge.novel{background:linear-gradient(120deg,#ede9fe,#fce7f3);color:#7c3aed}
.badge.known{background:#eef1f6;color:#8a90a6}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:5px}
.covtag{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:700}
.cov-high{background:#dcfce7;color:#15803d}
.cov-med{background:#fef3c7;color:#9a6700}
.cov-low{background:#fee2e2;color:#b91c1c}

/* ---------- warnings & row detail ---------- */
.warn{display:inline-block;margin-left:6px;color:#e0922f;cursor:help;font-size:12px}
tr.lowcov td.name{color:#9aa0b4}
.detail-btn{border:0;background:#f0f1f8;color:var(--muted);border-radius:7px;padding:4px 9px;
  font-size:12px;font-weight:700;cursor:pointer}
.detail-btn:hover{background:#e9e7fe;color:var(--indigo)}

/* ---------- track ---------- */
.track-panel{display:flex;flex-direction:column}
.track-head-row{display:flex;align-items:center;justify-content:space-between;gap:10px}
.track-export{display:flex;gap:6px}
button.mini{border:1px solid var(--line);background:#fff;border-radius:8px;padding:5px 10px;
  font-size:12px;font-weight:600;cursor:pointer;color:var(--muted)}
button.mini:hover{border-color:var(--violet);color:var(--indigo)}
.track-head h3{margin:4px 0 2px;font-size:15px}
.track-head .muted{font-size:12.5px;margin:0 0 8px}
#track{flex:1;min-height:230px}
#track svg{width:100%;height:auto;display:block}
.legend{display:flex;gap:18px;margin-top:10px;font-size:12px;color:var(--muted);flex-wrap:wrap}
.legend .sw{display:inline-block;width:13px;height:9px;border-radius:3px;margin-right:6px;vertical-align:middle}
.sw.cov{background:#c7d2fe}
.sw.site{background:#94a0c4}
.sw.selsite{background:#ec4899}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:20px 32px;display:flex;justify-content:space-between;
  font-size:13px;color:var(--muted);flex-wrap:wrap;gap:8px}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;background:rgba(20,22,40,.45);backdrop-filter:blur(3px);
  display:flex;align-items:center;justify-content:center;z-index:50;padding:20px}
.modal-card{background:#fff;border-radius:18px;max-width:620px;padding:34px;box-shadow:0 30px 80px rgba(20,20,50,.3);
  position:relative;max-height:85vh;overflow:auto}
.modal-card.wide{max-width:760px}
#batch-input{width:100%;border:1.5px solid var(--line);border-radius:11px;padding:12px;font-family:"JetBrains Mono",monospace;
  font-size:13px;resize:vertical;outline:none}
#batch-input:focus{border-color:var(--violet)}
.detail-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:16px 0}
.stat{background:#f7f8fc;border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.stat .k{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.4px}
.stat .v{font-size:20px;font-weight:800;font-family:"JetBrains Mono",monospace;margin-top:3px}
.mono{font-family:"JetBrains Mono",monospace;font-size:12px;word-break:break-all;color:#4a5170}
.modal-card table{margin-top:8px}
.modal-card h2{margin:0 0 14px;font-size:22px}
.modal-card p,.modal-card li{color:#444b66;font-size:14.5px}
.modal-card pre{background:#0f1226;color:#cdd3ff;padding:14px 16px;border-radius:11px;overflow:auto;font-size:12.5px}
.modal-card code{font-family:"JetBrains Mono",monospace}
.close{position:absolute;top:16px;right:18px;border:0;background:#f0f1f6;width:32px;height:32px;border-radius:50%;
  font-size:20px;cursor:pointer;color:var(--muted);line-height:1}
.close:hover{background:#e6e7f0}