:root {
  --gris: #4d4d4d; --rouge: #c00000; --vert: #1a7f37; --orange: #b26a00;
  --fond: #f4f4f2; --carte: #fff; --ligne: #dcdcd8; --texte: #222; --muted: #6b6b6b;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--fond); color: var(--texte); }
a { color: inherit; }
header.top { background: var(--gris); color: #fff; padding: 10px 24px; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
header.top .marque { font-weight: 700; text-decoration: none; letter-spacing: .02em; }
header.top nav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
header.top nav a, header.top .lien { color: #fff; text-decoration: none; opacity: .85; font-size: 14px; padding: 6px 10px; border-radius: 5px; background: none; border: 0; cursor: pointer; font: inherit; font-size: 14px; }
header.top nav a:hover, header.top nav a.actif, header.top .lien:hover { opacity: 1; background: rgba(255,255,255,.12); }
header.top form { margin: 0; }
main { max-width: 1120px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font-size: 24px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 28px 0 10px; }
.entete { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 16px; }
.entete h1 { margin: 0; }
.nav-mois { display: flex; align-items: center; gap: 16px; margin-bottom: 16px; }
.nav-mois h1 { margin: 0; min-width: 210px; text-align: center; }
.kpis { display: flex; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.kpi { background: var(--carte); border: 1px solid var(--ligne); border-radius: 8px; padding: 12px 18px; min-width: 180px; flex: 1 1 180px; }
.kpi span { display: block; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.kpi b { font-size: 22px; font-variant-numeric: tabular-nums; }
.msg { padding: 10px 14px; border-radius: 6px; margin-bottom: 14px; background: #e7f4ea; border: 1px solid #b6dcbf; }
.msg.erreur { background: #fbe9e9; border-color: #efbcbc; }
.table-wrap { overflow-x: auto; background: var(--carte); border: 1px solid var(--ligne); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--ligne); text-align: left; font-size: 14px; vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
th { background: #fafaf8; font-size: 12px; text-transform: uppercase; color: var(--muted); letter-spacing: .04em; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.fort { font-weight: 600; text-decoration: none; }
.fort:hover { text-decoration: underline; }
.statut { font-weight: 600; font-size: 13px; }
.payee { color: var(--vert); } .partielle { color: var(--orange); } .impayee { color: var(--rouge); } .a_venir { color: var(--muted); }
form.inline { display: inline-flex; gap: 4px; align-items: center; margin: 0; }
input, select { padding: 7px 8px; border: 1px solid #c9c9c4; border-radius: 5px; font: inherit; font-size: 14px; background: #fff; width: 100%; }
input.montant { width: 90px; text-align: right; }
form.inline input[type=date] { width: auto; }
input:focus, select:focus { outline: 2px solid #2a4f8f; outline-offset: 0; border-color: #2a4f8f; }
button, .btn { padding: 7px 12px; border: 1px solid var(--gris); background: var(--gris); color: #fff; border-radius: 5px; cursor: pointer; font: inherit; font-size: 14px; text-decoration: none; display: inline-block; white-space: nowrap; }
button:disabled { opacity: .45; cursor: not-allowed; }
.btn.sec { background: #fff; color: var(--gris); }
.btn.danger { background: #fff; color: var(--rouge); border-color: var(--rouge); }
.actions { display: flex; gap: 6px; flex-wrap: nowrap; align-items: center; }
.vide { background: var(--carte); border: 1px dashed #bbb; padding: 18px; border-radius: 8px; text-align: center; margin-bottom: 16px; }
.vide button { margin-left: 8px; }
small.muted, .muted { color: var(--muted); }
.carte { background: var(--carte); border: 1px solid var(--ligne); border-radius: 8px; padding: 20px; }
.grille { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 18px; }
.grille h2 { margin: 6px 0 0; }
.large, .boutons { grid-column: 1 / -1; }
.champ { display: flex; flex-direction: column; gap: 5px; font-size: 13px; }
.champ span { color: #444; font-weight: 500; }
.champ.invalide input, .champ.invalide select { border-color: var(--rouge); }
.err { color: var(--rouge); }
.case { display: flex; gap: 8px; align-items: center; font-size: 14px; }
.case input { width: auto; }
.boutons { display: flex; justify-content: flex-end; }
form.danger { margin-top: 24px; }
.apercu-logo { height: 22px; vertical-align: middle; background: var(--gris); padding: 3px 6px; border-radius: 3px; }
.login { max-width: 380px; margin: 10vh auto 0; display: flex; flex-direction: column; gap: 14px; }
.login h1 { margin: 0 0 4px; text-align: center; }
@media (max-width: 760px) {
  .opt { display: none; }
  .grille { grid-template-columns: 1fr; }
  header.top { padding: 10px 16px; }
  .nav-mois h1 { min-width: 0; font-size: 20px; }
  .kpi { min-width: 0; flex: 1 1 0; padding: 10px 12px; }
  .kpi b { font-size: 16px; }
  table.cartes thead { display: none; }
  table.cartes, table.cartes tbody, table.cartes tr, table.cartes td { display: block; width: 100%; }
  table.cartes tr { padding: 12px 14px; border-bottom: 1px solid var(--ligne); }
  table.cartes tr:last-child { border-bottom: 0; }
  table.cartes td { border: 0; padding: 3px 0; text-align: left; }
  table.cartes td[data-l]::before { content: attr(data-l) " : "; color: var(--muted); font-size: 13px; }
  table.cartes td.opt { display: none; }
  table.cartes form.inline { margin-top: 6px; }
  table.cartes .actions { margin-top: 8px; }
}