:root{
  --bg:#0b1220;
  --panel:#111a2e;
  --panel2:#0f172a;
  --text:#e5e7eb;
  --muted:#9ca3af;
  --border:rgba(255,255,255,.10);
  --primary:#3b82f6;
  --primary2:#2563eb;
  --danger:#ef4444;
  --warning:#f59e0b;
  --success:#22c55e;
  --cell-warn:rgba(239,68,68,.18);
  --cell-warn-border:rgba(239,68,68,.55);
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: radial-gradient(1200px 600px at 20% 0%, rgba(59,130,246,.25), transparent 50%),
              radial-gradient(900px 500px at 80% 10%, rgba(245,158,11,.16), transparent 55%),
              var(--bg);
  color:var(--text);
}
.app{max-width:1100px;margin:28px auto;padding:0 16px}
.header{margin-bottom:16px}
.header h1{margin:0;font-size:28px;letter-spacing:.2px}
.subtitle{margin:8px 0 0;color:var(--muted)}
.panel{
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  border:1px solid var(--border);
  border-radius:14px;
  padding:16px;
  box-shadow: 0 10px 24px rgba(0,0,0,.25);
}
.controls{display:grid;grid-template-columns: 1fr 220px 240px;gap:14px;align-items:end}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px}
.field select,input[type="text"]{
  width:100%;padding:10px 12px;border-radius:10px;
  border:1px solid var(--border);background: rgba(15,23,42,.8);color:var(--text);
}
.field input[readonly]{opacity:.95}
.file-row{display:flex;gap:10px;align-items:center}
#fileInput{flex:1}
button{
  cursor:pointer;border-radius:10px;padding:10px 14px;border:1px solid var(--border);
  background: rgba(15,23,42,.8);color:var(--text);
}
button.primary{background:var(--primary);border-color: rgba(59,130,246,.7)}
button.primary:hover{background:var(--primary2)}
button.secondary{background: rgba(255,255,255,.04)}
.actions{grid-column: 1 / -1;display:flex;gap:12px;justify-content:flex-start}
.feedback{margin-top:14px;display:block}
.toast{padding:12px 14px;border-radius:12px;border:1px solid var(--border)}
.toast-error{background: rgba(239,68,68,.12);border-color: rgba(239,68,68,.45); color: #fecaca;}
.mode-options{display:contents}
.mode-options[hidden]{display:none!important}
.analysis-result-wrap{margin-top:14px;max-height:360px;overflow:auto;border-radius:12px;border:1px solid var(--border)}
.analysis-result-wrap table{width:100%;border-collapse:collapse;font-size:12px}
.analysis-result-wrap thead th{position:sticky;top:0;background:rgba(17,26,46,.95);z-index:1;padding:10px;border-bottom:1px solid var(--border);text-align:left;color:var(--muted)}
.analysis-result-wrap tbody td{padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.06)}
.analysis-result-wrap tbody tr:hover td{background:rgba(255,255,255,.03)}
.search-summary{color:var(--success);font-size:14px;margin-bottom:8px;padding:8px 0}
.banner{
  padding:12px 14px;border-radius:12px;border:1px solid rgba(245,158,11,.45);
  background: rgba(245,158,11,.14); color: #fcd34d;
}
.status{margin-top:10px;color:var(--muted)}
.results{margin-top:14px}
.results-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.meta{color:var(--muted);font-size:13px}
.table-wrap{max-height:260px;overflow:auto;border-radius:12px;border:1px solid var(--border)}
.preview{width:100%;border-collapse:collapse;font-size:12px}
.preview thead th{
  position:sticky;top:0;background: rgba(17,26,46,.95);z-index:1;
  padding:10px 10px;border-bottom:1px solid var(--border);text-align:left;color:var(--muted);
}
.preview tbody td{
  padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.06);
  vertical-align:top;
}
.preview tbody tr:hover td{background: rgba(255,255,255,.03)}
.qc-bad{background: var(--cell-warn) !important; border:1px solid var(--cell-warn-border)}
.chart-wrap{margin-top:14px;position:relative}
canvas{display:block;width:100%;max-height:420px}
.empty{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background: rgba(0,0,0,.15); border:1px dashed rgba(255,255,255,.18); border-radius:12px;
  padding:16px; color: #cbd5e1;
}
.footer{margin-top:16px;color:var(--muted);font-size:12px;text-align:center}

@media (max-width: 900px){
  .controls{grid-template-columns: 1fr;}
  .actions{grid-column: auto;}
}