:root {
  --bg: #0f1420;
  --panel: #1a2130;
  --panel-2: #222b3d;
  --border: #2c3750;
  --text: #e6ebf4;
  --muted: #93a1bd;
  --accent: #3ddc97;
  --accent-2: #4f8cff;
  --danger: #ff6b6b;
  --warn: #ffd166;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
a { color: var(--accent-2); }
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; border-bottom: 1px solid var(--border);
  background: var(--panel); position: sticky; top: 0; z-index: 10;
}
header { flex-wrap: wrap; gap: 12px; }
header h1 { font-size: 18px; margin: 0; display: flex; align-items: center; gap: 10px; }
.tabs { display: flex; gap: 6px; flex: 1; flex-wrap: wrap; }
.tabs button { background: transparent; border: 1px solid transparent; color: var(--muted); padding: 8px 14px; border-radius: 8px; cursor: pointer; font-size: 14px; font-weight: 600; }
.tabs button:hover { color: var(--text); background: var(--panel-2); }
.tabs button.active { background: var(--accent-2); color: #fff; }
.synccards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.synccard p { margin: 0 0 14px; font-size: 13px; }
.syncmsg { margin-top: 10px; font-size: 13px; }
.hint { font-size: 12px; margin-bottom: 10px; }
header .tag { background: var(--accent); color: #05231a; font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 20px; }
.container { max-width: 1200px; margin: 0 auto; padding: 22px; }
.btn {
  background: var(--accent-2); color: #fff; border: none; padding: 9px 14px;
  border-radius: 8px; cursor: pointer; font-weight: 600; font-size: 13px;
}
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn.danger { background: var(--danger); }
.btn.small { padding: 5px 9px; font-size: 12px; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin-bottom: 22px; }
.kpi { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.kpi .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.kpi .value { font-size: 26px; font-weight: 700; margin-top: 6px; }
.kpi .sub { color: var(--muted); font-size: 12px; margin-top: 4px; }
.kpi .value.good { color: var(--accent); }
.kpi .value.bad { color: var(--danger); }

.grid-2 { display: grid; grid-template-columns: 1.4fr 1fr; gap: 18px; margin-bottom: 22px; }
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.card h2 { font-size: 15px; margin: 0 0 12px; }

.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }
.toolbar input, .toolbar select { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); padding: 8px 10px; border-radius: 8px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
tbody tr:hover { background: var(--panel-2); }
td.num, th.num { text-align: right; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.badge.encours { background: #2a3550; color: #a9c0ff; }
.badge.expedie { background: #2a4a5a; color: #8fe3ff; }
.badge.livre { background: #1e4436; color: #6ff0bb; }
.badge.retour { background: #4a3320; color: #ffca8f; }
.badge.sav { background: #4a2a2a; color: #ffa3a3; }
.badge.rembourse { background: #3a2a4a; color: #d3a9ff; }
.margin-pos { color: var(--accent); font-weight: 600; }
.margin-neg { color: var(--danger); font-weight: 600; }

.modal-bg { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: none; align-items: center; justify-content: center; z-index: 50; }
.modal-bg.open { display: flex; }
.modal { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 22px; width: 560px; max-width: 94vw; max-height: 90vh; overflow: auto; }
.modal h2 { margin-top: 0; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
input, select, textarea { width: 100%; background: var(--panel-2); border: 1px solid var(--border); color: var(--text); padding: 8px 10px; border-radius: 8px; font-family: inherit; font-size: 13px; }
textarea { resize: vertical; min-height: 60px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }

/* Login */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-box { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 34px; width: 360px; max-width: 92vw; text-align: center; }
.login-box h1 { font-size: 22px; margin: 0 0 6px; }
.login-box p { color: var(--muted); margin: 0 0 22px; }
.login-box input { margin-bottom: 12px; text-align: center; }
.error { color: var(--danger); font-size: 13px; min-height: 18px; }
.muted { color: var(--muted); }
.empty { text-align: center; color: var(--muted); padding: 30px; }

/* Filtres période */
.filterbar { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.periods { display: flex; gap: 8px; flex-wrap: wrap; }
.chip { background: var(--panel-2); border: 1px solid var(--border); color: var(--muted); padding: 6px 12px; border-radius: 20px; cursor: pointer; font-size: 12px; font-weight: 600; }
.chip:hover { color: var(--text); }
.chip.active { background: var(--accent-2); border-color: var(--accent-2); color: #fff; }
.daterange { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.daterange label { color: var(--muted); font-size: 12px; display: flex; align-items: center; gap: 6px; margin: 0; }
.daterange input[type=date], .daterange input[type=number] { width: auto; }
.daterange .thr input { width: 60px; }

.section { margin-bottom: 22px; }
.chargerow { display: flex; gap: 10px; align-items: center; margin-bottom: 8px; }
.chargerow .chl { flex: 1; min-width: 120px; }
.chargerow .cha { width: 120px; }
.chargerow .chv { width: 80px; text-align: center; }
.chargerow .chc { width: 100px; text-align: right; }
.chargerow .chx { width: 40px; flex: none; }
.chargerow.chhead { font-size: 12px; margin-bottom: 4px; }
.chargerow.chtotal { justify-content: space-between; border-top: 1px solid var(--border); padding-top: 10px; margin-top: 6px; font-size: 15px; }
.chargerow.chtotal span { color: var(--muted); }

/* Alertes marge faible */
tbody tr.lowmargin { background: rgba(255, 107, 107, 0.08); }
tbody tr.lowmargin:hover { background: rgba(255, 107, 107, 0.15); }
.lowpct { color: var(--danger) !important; font-weight: 700; }
tbody tr { cursor: pointer; }

/* Modal détail */
.modal-head { display: flex; align-items: center; justify-content: space-between; }
.dmeta { margin: 6px 0 16px; font-size: 15px; font-weight: 600; }
.dgrid { display: flex; flex-direction: column; gap: 2px; }
.drow { display: flex; justify-content: space-between; padding: 9px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
.drow span:first-child { color: var(--muted); }
.drow.total { border-top: 2px solid var(--border); border-bottom: none; margin-top: 6px; font-size: 17px; font-weight: 700; }

/* ============ Responsive / Mobile ============ */
@media (max-width: 680px) {
  header { padding: 10px 14px; gap: 8px; position: relative; }
  header h1 { font-size: 16px; flex: 1; }
  #logoutBtn { order: 2; }
  .tabs { order: 3; width: 100%; flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 2px; }
  .tabs button { padding: 8px 12px; font-size: 13px; white-space: nowrap; }
  .container { padding: 14px; }
  .card { padding: 14px; }
  .kpis { grid-template-columns: 1fr 1fr; gap: 10px; }
  .kpi { padding: 12px; }
  .kpi .value { font-size: 20px; }
  .grid-2 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .filterbar { flex-direction: column; align-items: stretch; gap: 12px; }
  .daterange { flex-wrap: wrap; }
  .synccards { grid-template-columns: 1fr; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .toolbar .btn, .toolbar input, .toolbar select { width: 100%; }
  table { font-size: 12px; }
  th, td { padding: 7px 6px; }
  .modal { padding: 16px; width: 96vw; }
  .modal-actions .btn { flex: 1; }
}
/* Sur très petit écran, on masque la colonne Commande du tableau des ventes (visible au clic) */
@media (max-width: 520px) {
  #salesTable th:nth-child(2), #salesTable td:nth-child(2) { display: none; }
  .kpi .value { font-size: 18px; }
}
.labelbox { margin-top: 18px; padding: 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel-2); }
.labelbox h3 { margin: 0 0 8px; font-size: 14px; }
.labelbox .btn { margin-right: 8px; }