:root {
  --bg: #f4f6f9;
  --panel: #ffffff;
  --ink: #1c2530;
  --muted: #667487;
  --line: #dde3ea;
  --brand: #1f3b57;
  --brand-soft: #eaf0f6;
  --a: #1f6f8b;
  --b: #8a5a2b;
  --ok: #1f7a4d;
  --warn: #a8641b;
  --ko: #a32b2b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.45 "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.topbar {
  background: var(--brand);
  color: #fff;
  padding: 18px 28px;
}

.topbar h1 { margin: 0; font-size: 20px; letter-spacing: .2px; }
.topbar p { margin: 4px 0 0; opacity: .75; font-size: 13px; }

main {
  max-width: 1280px;
  margin: 22px auto 60px;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 20px 22px;
}

.panel h2 {
  margin: 0 0 16px;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.panel h3 { margin: 0 0 10px; font-size: 14px; color: var(--muted); }

.step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
}

.dropzones {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 820px) { .dropzones { grid-template-columns: 1fr; } }

.dropzone {
  border: 2px dashed #c3cedb;
  border-radius: 10px;
  padding: 16px;
  background: #fbfcfe;
  transition: border-color .15s, background .15s;
}

.dropzone.drag { border-color: var(--brand); background: var(--brand-soft); }
.dropzone.loaded { border-style: solid; border-color: #9fb4c8; }

.dz-head { display: flex; align-items: center; gap: 10px; }
.dz-head strong { display: block; }
.dz-sub { color: var(--muted); font-size: 12px; }
.dz-hint { color: var(--muted); font-size: 13px; margin: 10px 0 6px; }

.badge {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
}

.badge-a { background: var(--a); }
.badge-b { background: var(--b); }

.file-meta { font-size: 13px; color: var(--muted); }
.file-meta .fname { color: var(--ink); font-weight: 600; }
.file-meta .ok { color: var(--ok); }
.file-meta .ko { color: var(--ko); }

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 22px;
  margin-bottom: 18px;
}

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

.field label { display: block; font-weight: 600; font-size: 13px; margin-bottom: 6px; }
.field .inline { font-weight: 400; display: block; margin-bottom: 4px; }
.hint { color: var(--muted); font-weight: 400; font-size: 12px; }

.checks {
  border: 1px solid var(--line);
  border-radius: 8px;
  max-height: 190px;
  overflow: auto;
  padding: 8px 10px;
  background: #fdfdfe;
}

.checks label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 0;
  font-weight: 400;
  font-size: 13px;
}

.checks label.disabled { color: var(--muted); }

input[type="number"], input[type="search"], select {
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
  background: #fff;
  min-width: 140px;
}

input[type="checkbox"] { width: 15px; height: 15px; }

.btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  padding: 8px 16px;
  border-radius: 7px;
  font: inherit;
  cursor: pointer;
}

.btn:hover { border-color: #9fb4c8; }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
.btn.primary:hover { background: #26496b; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 12px 14px;
  background: #fbfcfe;
}

.card .value { font-size: 24px; font-weight: 700; }
.card .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
.card.ok .value { color: var(--ok); }
.card.warn .value { color: var(--warn); }
.card.ko .value { color: var(--ko); }

.panel-sub { margin-bottom: 18px; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 12px;
}

.toolbar .spacer { flex: 1; }

.table-wrap {
  overflow: auto;
  max-height: 520px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

table { border-collapse: collapse; width: 100%; font-size: 13px; }

th, td {
  text-align: left;
  padding: 7px 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  white-space: nowrap;
}

th {
  background: var(--brand-soft);
  position: sticky;
  top: 0;
  z-index: 1;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .3px;
  color: var(--brand);
}

tbody tr:hover { background: #f7fafd; }

.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .3px;
}

.tag.MODIFIE { background: #fdf0dc; color: var(--warn); }
.tag.ABSENT_DANS_B { background: #fbe6e6; color: var(--ko); }
.tag.ABSENT_DANS_A { background: #e2eef9; color: var(--a); }

.diff-old { color: var(--ko); }
.diff-new { color: var(--ok); }
.diff-col { font-weight: 600; }

.error { color: var(--ko); margin: 12px 0 0; font-size: 13px; }
#warnings-panel ul { margin: 0; padding-left: 20px; color: var(--warn); font-size: 13px; }