:root{
  --navy:#0D2C4E; --navy-deep:#081C33; --navy-light:#1B3E63;
  --turquoise:#2E93A6; --turquoise-deep:#1F6E7D;
  --gold:#C9A24B; --gold-light:#DDBD70;
  --bg:#F4F7F8; --card:#FFFFFF; --ink:#0F2338; --ink-soft:#5C7188; --line:#E2E8ED;
  --red:#C1502E; --green:#2E8B57;
  --font-display:'Aptos', 'Calibri', 'Segoe UI', Arial, sans-serif; --font-body:'Aptos', 'Calibri', 'Segoe UI', Arial, sans-serif;
}
*{box-sizing:border-box;}
body{margin:0;font-family:var(--font-body);background:var(--bg);color:var(--ink);}
a{color:inherit;text-decoration:none;}
.app{display:flex;min-height:100vh;}
.sidebar{width:232px;background:linear-gradient(190deg, var(--navy-deep), var(--navy));color:#fff;flex-shrink:0;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;}
.sidebar .brand{padding:22px 18px;display:flex;align-items:center;gap:10px;}
.sidebar .brand img{width:40px;height:40px;object-fit:contain;filter:drop-shadow(0 2px 5px rgba(0,0,0,.25));}
.sidebar .brand-name{font-family:var(--font-display);font-weight:600;font-size:16px;line-height:1.1;}
.sidebar .brand-sub{font-size:9px;color:var(--gold-light);letter-spacing:1.4px;text-transform:uppercase;}
.nav{flex:1;padding:10px;overflow-y:auto;}
.nav a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;margin-bottom:3px;color:#C7D3E0;font-weight:500;font-size:13.5px;border-left:3px solid transparent;}
.nav a.active{background:rgba(46,147,166,0.18);color:var(--gold-light);font-weight:700;border-left:3px solid var(--turquoise);}
.nav a:hover{background:rgba(255,255,255,0.06);}
.sidebar-footer{padding:14px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:#9FB1C6;}
.sidebar-footer form{margin-top:8px;}
.btn-logout{width:100%;display:flex;align-items:center;justify-content:center;gap:8px;padding:8px 10px;border-radius:8px;border:1px solid rgba(255,255,255,.2);background:transparent;color:#fff;cursor:pointer;font-size:12.5px;}

.main{flex:1;padding:26px 30px;max-width:1200px;}
.page-header{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:20px;flex-wrap:wrap;gap:12px;}
.page-title{font-family:var(--font-display);font-size:26px;font-weight:600;color:var(--navy);}
.page-subtitle{color:var(--ink-soft);font-size:13.5px;margin-top:2px;}

.stats{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:22px;}
.stat-card{background:var(--card);border-radius:14px;padding:18px 20px;flex:1 1 200px;border:1px solid var(--line);position:relative;overflow:hidden;}
.stat-label{font-size:12.5px;color:var(--ink-soft);font-weight:600;text-transform:uppercase;letter-spacing:.4px;margin-bottom:8px;}
.stat-value{font-family:var(--font-display);font-size:24px;font-weight:600;color:var(--navy);}

.card{background:var(--card);border-radius:14px;border:1px solid var(--line);padding:20px;}
.card-title{font-family:var(--font-display);font-size:16px;color:var(--navy);margin-bottom:12px;}

.grid-2{display:flex;gap:16px;flex-wrap:wrap;}
.grid-2 > *{flex:1 1 380px;}
.grid-cards{display:grid;grid-template-columns:repeat(auto-fill, minmax(280px,1fr));gap:14px;}

table{width:100%;border-collapse:collapse;font-size:13px;}
thead tr{background:var(--bg);text-align:left;}
th{padding:10px 14px;color:var(--ink-soft);font-weight:600;font-size:11.5px;text-transform:uppercase;}
td{padding:10px 14px;border-top:1px solid var(--line);}
tr.row-link{cursor:pointer;}
tr.row-link:hover{background:#FAFCFD;}

.pill{display:inline-block;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;white-space:nowrap;}

.btn{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;padding:9px 15px;border-radius:8px;cursor:pointer;border:1px solid transparent;font-family:var(--font-body);}
.btn-primary{background:var(--navy);color:#fff;border-color:var(--navy);}
.btn-accent{background:var(--turquoise);color:#fff;border-color:var(--turquoise);}
.btn-gold{background:var(--gold);color:#fff;border-color:var(--gold);}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--line);}
.btn-danger{background:transparent;color:var(--red);border-color:#C1502E44;}
.btn[disabled]{opacity:.5;cursor:not-allowed;}

label.field{display:block;margin-bottom:14px;}
.field-label{font-size:12px;font-weight:600;color:var(--ink-soft);margin-bottom:5px;text-transform:uppercase;letter-spacing:.4px;}
input[type=text], input[type=date], input[type=number], input[type=email], input[type=password], input[type=file], select, textarea{
  width:100%;padding:9px 11px;border-radius:8px;border:1px solid var(--line);font-size:14px;font-family:var(--font-body);color:var(--ink);background:#fff;outline:none;
}
textarea{resize:vertical;}
.row-flex{display:flex;gap:12px;}
.row-flex > *{flex:1;}

.search-box{position:relative;max-width:340px;}
.search-box input{padding-left:32px;}
.search-box svg{position:absolute;left:10px;top:11px;color:var(--ink-soft);}

.totals-box{background:var(--navy);border-radius:10px;padding:14px;color:#fff;display:flex;justify-content:space-between;margin-top:4px;}
.totals-box .lbl{font-size:11px;color:#B9C7DA;}
.totals-box .val{font-weight:700;}
.totals-box .ttc .lbl{color:var(--gold-light);}
.totals-box .ttc .val{font-weight:800;font-size:16px;}

.badge-currency{font-size:11px;background:var(--bg);padding:2px 8px;border-radius:6px;color:var(--ink-soft);font-weight:600;}

.alert{padding:10px 14px;border-radius:8px;font-size:12.5px;margin-bottom:14px;}
.alert-error{background:#FBEAE4;color:var(--red);}
.alert-success{background:#E7F5EE;color:var(--green);}
.alert-info{background:#FBF6E9;color:#7A5F1E;border:1px solid var(--gold-light);}

.login-wrap{min-height:100vh;background:linear-gradient(160deg, var(--navy-deep) 0%, var(--navy) 55%, var(--navy-light) 100%);display:flex;align-items:center;justify-content:center;padding:20px;}
.login-box{width:100%;max-width:400px;}
.login-logo{display:flex;flex-direction:column;align-items:center;gap:10px;margin-bottom:26px;}
.login-logo img{width:92px;height:92px;object-fit:contain;filter:drop-shadow(0 6px 14px rgba(0,0,0,.3));}
.login-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(6px);border-radius:16px;padding:28px 26px;}
.login-card input{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);color:#fff;}
.login-card .field-label{color:var(--gold-light);}
.btn-login{width:100%;margin-top:10px;padding:11px;border-radius:8px;border:none;background:linear-gradient(90deg, var(--turquoise), var(--turquoise-deep));color:#fff;font-weight:700;font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;}

.modal-overlay{position:fixed;inset:0;background:rgba(11,25,45,.55);z-index:100;display:flex;align-items:flex-start;justify-content:center;padding:3vh 16px;overflow-y:auto;}
.modal{background:#fff;border-radius:14px;width:100%;max-width:560px;box-shadow:0 20px 60px rgba(11,25,45,.3);margin-top:2vh;}
.modal.wide{max-width:820px;}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);}
.modal-title{font-family:var(--font-display);font-size:18px;font-weight:600;color:var(--navy);}
.modal-body{padding:20px;}
.modal-close{background:none;border:none;cursor:pointer;color:var(--ink-soft);}

.item-row{display:flex;gap:8px;margin-bottom:8px;align-items:center;}
.item-row input:nth-child(1){flex:3;}
.item-row input:nth-child(2){flex:1;}
.item-row input:nth-child(3){flex:1.4;}
.add-line-btn{background:none;border:1px dashed var(--line);border-radius:8px;padding:6px 12px;color:var(--turquoise-deep);font-size:12.5px;font-weight:600;cursor:pointer;}

.status-buttons{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap;}
.status-buttons button{font-size:12px;padding:5px 12px;border-radius:999px;cursor:pointer;border:1px solid var(--line);background:#fff;color:var(--ink-soft);font-weight:600;}
.status-buttons button.active{background:var(--navy);color:#fff;border-color:var(--navy);}

.print-invoice{border:1px solid var(--line);border-radius:10px;padding:30px;background:#fff;}
.print-header{display:flex;justify-content:space-between;align-items:center;border-bottom:3px solid var(--gold);padding-bottom:16px;margin-bottom:20px;}
.print-header img{width:52px;height:52px;object-fit:contain;}
.print-brand{display:flex;align-items:center;gap:12px;}

@media print{
  .no-print{display:none !important;}
  .main{padding:0;max-width:none;}
  body{background:#fff;}
}
@media (max-width: 880px){
  .sidebar{display:none;}
  .main{padding:16px;}
}

/* ---------------- Mode sombre ---------------- */
body.dark{
  --bg:#0F1720; --card:#1A2530; --ink:#E8EDF2; --ink-soft:#93A2B4; --line:#2A3846;
}
body.dark input[type=text], body.dark input[type=date], body.dark input[type=number],
body.dark input[type=email], body.dark input[type=password], body.dark input[type=file],
body.dark select, body.dark textarea{
  background:var(--card); color:var(--ink); border-color:var(--line);
}
body.dark .modal{background:var(--card); box-shadow:0 20px 60px rgba(0,0,0,.5);}
body.dark .status-buttons button{background:var(--card); color:var(--ink-soft); border-color:var(--line);}
body.dark .print-invoice{background:var(--card);}
body.dark thead tr{background:#141E28;}
body.dark tr.row-link:hover{background:#20303D;}
body.dark .badge-currency{background:#141E28;}
body.dark .add-line-btn{border-color:var(--line);}
body.dark .stat-card{box-shadow:none;}
body.dark .alert-error{background:#3A1F1A;}
body.dark .alert-success{background:#123321;}
body.dark .alert-info{background:#332B14;}

.theme-toggle{font-size:11px;font-weight:700;padding:3px 8px;border-radius:5px;background:rgba(255,255,255,.08);color:#B9C7DA;cursor:pointer;border:none;}
.theme-toggle.active{background:var(--gold);color:#fff;}