:root{
  --cream:#F1F4F8; --card:#FFFFFF; --green:#1B65A8; --green-soft:#3D77AC;
  --ink:#1C2733; --muted:#647082; --line:#D7DEE7; --gold:#C6491E; --red:#A33B2E; --ok:#2F7A4D;
  --radius:16px; --fb:'Public Sans',system-ui,sans-serif; --fd:'Fraunces',Georgia,serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--cream);color:var(--ink);font-family:var(--fb);font-size:15px;line-height:1.5;padding-bottom:60px}
header{background:#123F6B;color:#F3F5F8;padding:18px 20px 12px}
header h1{font-family:var(--fd);font-weight:600;font-size:21px}
.logo-box{background:#fff;border-radius:12px;padding:8px 14px;display:inline-block}
.logo-box img{display:block;height:44px;width:auto}
header p{font-size:12px;opacity:.75;text-transform:uppercase;letter-spacing:1.5px;margin-top:2px}
.userbar{font-size:12px;margin-top:6px;opacity:.9}
.userbar a{color:#C9DCEF}
.tabs{display:flex;gap:6px;background:#123F6B;padding:10px 14px 14px;flex-wrap:wrap}
.tab{flex:1;min-width:90px;text-align:center;padding:9px 4px;border-radius:10px;font-size:13px;font-weight:600;
  color:#C9DCEF;background:rgba(255,255,255,.08);text-decoration:none}
.tab.on{background:#F1F4F8;color:#123F6B}
main{padding:16px;max-width:860px;margin:0 auto}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:14px}
h2{font-family:var(--fd);font-weight:600;font-size:18px;margin-bottom:12px;color:var(--green)}
h3{font-family:var(--fd);font-weight:600;font-size:15px;margin:16px 0 6px;color:var(--green)}
label{display:block;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);margin:12px 0 4px}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;
  font-family:var(--fb);font-size:15px;background:#FBFCFE;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--green-soft);border-color:transparent}
textarea{min-height:90px;resize:vertical}
.row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:12px;
  border:none;font-family:var(--fb);font-size:14px;font-weight:700;cursor:pointer;letter-spacing:.3px;text-decoration:none}
.btn-green{background:var(--green);color:#F3F5F8}
.btn-line{background:transparent;border:1.5px solid var(--green);color:var(--green)}
.btn-sm{padding:8px 12px;font-size:12px;border-radius:9px}
.btn-gold{background:var(--gold);color:#fff}
.btn-ok{background:var(--ok);color:#fff}
.btn-red{background:transparent;color:var(--red);border:1.5px solid var(--red)}
.btn-violet{background:#4A3C85;color:#fff}
.wide{width:100%}
form.inline{display:inline}
.ligne{border:1px solid var(--line);border-radius:12px;padding:10px;margin-bottom:8px;background:#F7FAFD;position:relative}
.ligne .x{position:absolute;top:6px;right:8px;border:none;background:none;color:var(--red);font-size:16px;cursor:pointer}
.ligne input{margin-bottom:6px}
.lg{display:grid;grid-template-columns:1.1fr .7fr .9fr .8fr;gap:6px}
.lg input,.lg select{margin-bottom:0;padding:9px 8px;font-size:14px}
.lg span{font-size:10.5px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.4px}
.badge{display:inline-block;padding:3px 10px;border-radius:99px;font-size:11px;font-weight:700;letter-spacing:.5px;text-transform:uppercase}
.b-brouillon{background:#E4E9EF;color:#647082}.b-envoye{background:#DCE9F5;color:#2A5A85}
.b-relance{background:#F5EAD4;color:#8A6420}.b-signe{background:#DCEFE2;color:#22623C}.b-refuse{background:#F5DDD8;color:#A33B2E}
.b-facture{background:#E5E0F2;color:#4A3C85}.b-payee{background:#DCEFE2;color:#22623C}.b-retard{background:#F5DDD8;color:#A33B2E}
.alert-rel{background:#FCEFE7;border:1px solid #EBC5AD;color:#9C4A1E;border-radius:10px;padding:8px 12px;font-size:13px;font-weight:600;margin-bottom:10px}
.d-top{display:flex;justify-content:space-between;align-items:flex-start;gap:8px}
.d-num{font-size:12px;color:var(--muted);font-weight:600}
.d-name{font-family:var(--fd);font-size:17px;font-weight:600}
.d-amt{font-family:var(--fd);font-size:19px;font-weight:600;color:var(--green);white-space:nowrap}
.d-meta{font-size:12.5px;color:var(--muted)}
.d-actions{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.filters{display:flex;gap:6px;overflow-x:auto;padding-bottom:10px}
.filters .btn{white-space:nowrap}
.filters .on{background:var(--green);color:#F3EFE4;border-color:var(--green)}
.empty{text-align:center;color:var(--muted);padding:36px 12px;font-size:14px}
.flash{padding:11px 14px;border-radius:12px;font-size:14px;font-weight:600;margin-bottom:14px}
.flash.ok{background:#DCEFE2;color:#22623C}.flash.err{background:#F5DDD8;color:#A33B2E}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:14px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 6px;text-align:center}
.stat b{display:block;font-family:var(--fd);font-size:18px;color:#123F6B}
.stat span{font-size:10.5px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);font-weight:700}
.totaux{background:#EBF0F6;border-radius:12px;padding:12px 14px;margin-top:12px;font-size:14px}
.totaux div{display:flex;justify-content:space-between;padding:2px 0}
.totaux .tt{font-family:var(--fd);font-size:18px;font-weight:600;color:var(--green);border-top:1px solid var(--line);margin-top:6px;padding-top:8px}
.ai-box{background:#EDF3F9;border:1px dashed var(--green-soft);border-radius:12px;padding:12px;margin:12px 0}
.ai-box p{font-size:12.5px;color:var(--green-soft);margin-bottom:8px}
.hint{font-size:12px;color:var(--muted);margin-top:4px}
iframe.apercu{width:100%;height:75vh;border:1px solid var(--line);border-radius:12px;background:#fff}
canvas.sig{width:100%;height:150px;border-radius:12px;background:#fff;touch-action:none;display:block}
.spin{display:inline-block;width:15px;height:15px;border:2.5px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:sp .7s linear infinite;vertical-align:middle}
@keyframes sp{to{transform:rotate(360deg)}}
@media(max-width:520px){.row{grid-template-columns:1fr}.stat-grid{grid-template-columns:repeat(2,1fr)}}