*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: #1a1d23;
  color: #e4e6eb;
  padding: 1rem;
}

.container { max-width: 1400px; margin: 0 auto; }

h1 { margin: 0 0 0.5rem; font-size: 1.5rem; font-weight: 600; }

.sub { color: #8b8f97; font-size: 0.9rem; margin-bottom: 1.5rem; }

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 700px) { .grid { grid-template-columns: 1fr; } }

.card {
  background: #25282e;
  border-radius: 10px;
  padding: 1rem 1.25rem;
  border: 1px solid #3a3d44;
}

.card h2 { margin: 0 0 0.5rem; font-size: 1rem; font-weight: 600; color: #b0b4bb; }
.card .sub { margin-bottom: 0.75rem; }
.file-list { font-size: 0.8rem; color: #8b8f97; margin-top: 0.5rem; max-height: 4em; overflow: auto; }

.card-file { border-left: 3px solid #5a606a; }
.card-file.detected-doc1 { border-left-color: #4a9eff; }
.card-file.detected-doc2 { border-left-color: #6bcf7f; }

.detection {
  margin-bottom: 1rem;
  padding: 0.6rem 1rem;
  background: #25282e;
  border-radius: 8px;
  border: 1px solid #3a3d44;
  font-size: 0.9rem;
  color: #b0b4bb;
}

input[type="file"] {
  width: 100%;
  padding: 0.5rem;
  background: #1a1d23;
  border: 1px solid #3a3d44;
  border-radius: 6px;
  color: #e4e6eb;
  font-size: 0.9rem;
}

.headers {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: #8b8f97;
  max-height: 4em;
  overflow: auto;
}

.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  background: #4a9eff;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  margin-top: 1rem;
}

.btn:hover { background: #3a8eef; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-secondary { background: #5a606a; margin-left: 0; }
.btn-secondary:hover { background: #6a707a; }

.results {
  margin-top: 1.5rem;
  background: #25282e;
  border-radius: 10px;
  padding: 1rem 1.25rem;
  border: 1px solid #3a3d44;
}

.results h2 { margin: 0 0 0.75rem; font-size: 1rem; color: #b0b4bb; }

.stats { display: flex; gap: 1.5rem; flex-wrap: wrap; margin-bottom: 1rem; }

.stat { font-size: 0.95rem; }
.stat strong { color: #4a9eff; }
.stat.dups strong { color: #e6a23c; }
.stat.unlinked strong { color: #b0b4bb; }
.stat.excluded strong { color: #8b8f97; }

.table-wrap { overflow-x: auto; max-height: 60vh; overflow-y: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

th, td { padding: 0.5rem 0.75rem; text-align: left; border-bottom: 1px solid #3a3d44; }
th { background: #1a1d23; color: #8b8f97; font-weight: 600; position: sticky; top: 0; }

tr.dup { background: rgba(230, 162, 60, 0.12); }
tr.dup.dup-g0 { background: rgba(230, 162, 60, 0.08); }
tr.dup.dup-g1 { background: rgba(230, 162, 60, 0.18); }

.empty { color: #8b8f97; font-style: italic; padding: 1rem 0; }

.err { color: #f56c6c; margin-top: 0.5rem; font-size: 0.9rem; }

.filter-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem; flex-wrap: wrap; }
.filter-row label { display: flex; align-items: center; gap: 0.5rem; cursor: pointer; font-size: 0.9rem; color: #b0b4bb; }
.filter-row input[type="checkbox"] { width: 1.1em; height: 1.1em; accent-color: #4a9eff; }

.table-wrap a { color: #4a9eff; }
.table-wrap a:hover { text-decoration: underline; }

.unlinked-panel { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid #3a3d44; }
.unlinked-panel h3 { margin: 0 0 0.25rem; font-size: 1rem; color: #b0b4bb; }
.unlinked-desc { font-size: 0.85rem; color: #8b8f97; margin: 0 0 1rem; }
.unlinked-tables { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
@media (max-width: 700px) { .unlinked-tables { grid-template-columns: 1fr; } }
.unlinked-block h4 { margin: 0 0 0.5rem; font-size: 0.9rem; font-weight: 600; color: #8b8f97; }
.unlinked-table-wrap { max-height: 40vh; }