:root{
  --navy:#0D2C4E; --navy-deep:#081C33; --navy-light:#1B3E63;
  --turquoise:#2E93A6; --turquoise-deep:#1F6E7D;
  --gold:#C9A24B; --gold-light:#DDBD70;
  --bg:#F8F6F0; --card:#FFFFFF; --tint:#F1F4F6; --ink:#0F2338; --ink-soft:#5C7188; --line:#E2E8ED;
  --red:#C1502E; --green:#2E8B57;
  --shadow-1:0 1px 2px rgba(8,28,51,.06), 0 8px 20px rgba(8,28,51,.06);
  --shadow-2:0 2px 6px rgba(8,28,51,.10), 0 16px 40px rgba(8,28,51,.10);
  --font-display:'Aptos','Iowan Old Style','Palatino Linotype','Book Antiqua',Georgia,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;}
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible{outline:2px solid var(--turquoise);outline-offset:2px;}
.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);}
.nav-group{margin-bottom:3px;}
.nav-group summary{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;color:#C7D3E0;font-weight:500;font-size:13.5px;cursor:pointer;list-style:none;}
.nav-group summary::-webkit-details-marker{display:none;}
.nav-group summary:hover{background:rgba(255,255,255,0.06);}
.nav-group summary::after{content:'›';margin-left:auto;transition:transform .15s ease;}
.nav-group[open] summary::after{transform:rotate(90deg);}
.nav-subitem{display:flex;align-items:center;gap:9px;padding:8px 12px 8px 30px;border-radius:9px;margin-bottom:2px;color:#B2C0D1;font-weight:500;font-size:13px;border-left:3px solid transparent;}
.nav-subitem.active{background:rgba(46,147,166,0.18);color:var(--gold-light);font-weight:700;border-left:3px solid var(--turquoise);}
.nav-subitem: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;box-shadow:var(--shadow-1);transition:box-shadow .18s ease, transform .18s ease;}
.stat-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.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);font-variant-numeric:tabular-nums;}

.card{background:var(--card);border-radius:14px;border:1px solid var(--line);padding:20px;box-shadow:var(--shadow-1);transition:box-shadow .18s ease, transform .18s ease;}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-1px);}
.empty-state{text-align:center;padding:52px 20px;color:var(--ink-soft);}
.empty-state .empty-icon{font-size:38px;margin-bottom:10px;opacity:.55;}
.empty-state .empty-msg{font-size:13.5px;margin-bottom:16px;}
.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{text-align:left;border-bottom:1px solid var(--line);}
th{padding:10px 14px;color:var(--ink-soft);font-weight:600;font-size:11.5px;text-transform:uppercase;letter-spacing:.4px;}
td{padding:10px 14px;border-top:1px solid var(--line);font-variant-numeric:tabular-nums;}
tr.row-link{cursor:pointer;}
tr.row-link:hover{background:#FAFCFD;}

.mono-num{font-variant-numeric:tabular-nums;font-weight:600;}

.pill{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;padding:3px 10px 3px 8px;border-radius:999px;white-space:nowrap;}
.pill::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;flex-shrink:0;}

.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);transition:filter .12s ease, transform .12s ease;}
.btn:active{transform:translateY(1px);}
.btn-primary{background:linear-gradient(155deg, var(--navy-light), var(--navy-deep));color:#fff;border-color:var(--navy-deep);box-shadow:0 2px 8px rgba(8,28,51,.28);}
.btn-primary:hover{filter:brightness(1.08);}
.btn-accent{background:linear-gradient(155deg, var(--turquoise), var(--turquoise-deep));color:#fff;border-color:var(--turquoise-deep);box-shadow:0 2px 8px rgba(31,110,125,.28);}
.btn-accent:hover{filter:brightness(1.08);}
.btn-gold{background:linear-gradient(155deg, var(--gold-light), var(--gold));color:#3A2E0F;border-color:var(--gold);box-shadow:0 2px 8px rgba(201,162,75,.32);}
.btn-gold:hover{filter:brightness(1.05);}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--line);}
.btn-ghost:hover{background:rgba(46,147,166,.08);}
.btn-danger{background:transparent;color:var(--red);border-color:#C1502E44;}
.btn-danger:hover{background:rgba(193,80,46,.08);}
.btn[disabled]{opacity:.5;cursor:not-allowed;}
body.dark .btn-ghost{color:var(--ink);}

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=month], 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(--tint);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;position:relative;overflow:hidden;}
.login-wrap::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.10;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='600' height='300' viewBox='0 0 600 300'%3E%3Cpath d='M0 40 Q75 10 150 40 T300 40 T450 40 T600 40' fill='none' stroke='%23FFFFFF' stroke-width='1'/%3E%3Cpath d='M0 100 Q75 70 150 100 T300 100 T450 100 T600 100' fill='none' stroke='%23FFFFFF' stroke-width='1'/%3E%3Cpath d='M0 160 Q75 130 150 160 T300 160 T450 160 T600 160' fill='none' stroke='%23FFFFFF' stroke-width='1'/%3E%3Cpath d='M0 220 Q75 190 150 220 T300 220 T450 220 T600 220' fill='none' stroke='%23FFFFFF' stroke-width='1'/%3E%3Cpath d='M0 280 Q75 250 150 280 T300 280 T450 280 T600 280' fill='none' stroke='%23FFFFFF' stroke-width='1'/%3E%3C/svg%3E");
  background-repeat:repeat;background-size:600px 300px;}
.login-box{position:relative;z-index:1;}
.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;}
}
.mobile-tabbar{display:none;}
.mobile-menu-overlay{display:none;}

@media (max-width: 880px){
  .sidebar{display:none;}
  .main{padding:16px;padding-bottom:calc(78px + env(safe-area-inset-bottom));}

  .mobile-tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;
    background:var(--card);border-top:1px solid var(--line);
    padding:8px 4px calc(8px + env(safe-area-inset-bottom));
    box-shadow:0 -2px 12px rgba(8,28,51,.08);
  }
  .mobile-tab-item{
    flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
    font-size:10.5px;font-weight:600;color:var(--ink-soft);background:none;border:none;
    padding:4px 2px;cursor:pointer;font-family:var(--font-body);
  }
  .mobile-tab-item.active{color:var(--turquoise-deep);}
  body.dark .mobile-tab-item.active{color:var(--gold-light);}

  .mobile-menu-overlay{
    display:block;position:fixed;inset:0;z-index:70;background:rgba(8,20,36,.5);
    opacity:0;pointer-events:none;transition:opacity .2s ease;
  }
  .mobile-menu-overlay.open{opacity:1;pointer-events:auto;}
  .mobile-menu-sheet{
    position:absolute;left:0;right:0;bottom:0;max-height:82vh;overflow-y:auto;
    background:var(--card);border-radius:18px 18px 0 0;padding:16px 18px calc(20px + env(safe-area-inset-bottom));
    transform:translateY(100%);transition:transform .22s ease;box-shadow:0 -8px 30px rgba(8,28,51,.25);
  }
  .mobile-menu-overlay.open .mobile-menu-sheet{transform:translateY(0);}
}

.mmenu-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;margin-bottom:8px;border-bottom:1px solid var(--line);}
.mmenu-brand{display:flex;align-items:center;gap:9px;}
.mmenu-brand img{width:28px;height:28px;}
.mmenu-brand b{font-family:var(--font-display);font-size:15px;color:var(--navy);}
body.dark .mmenu-brand b{color:var(--ink);}
.mmenu-close{background:var(--tint);border:none;border-radius:8px;padding:6px;color:var(--ink-soft);cursor:pointer;display:flex;}
.mmenu-item, .mmenu-group summary{
  display:flex;align-items:center;gap:11px;padding:11px 8px;border-radius:9px;
  color:var(--ink);font-weight:500;font-size:14.5px;cursor:pointer;list-style:none;
}
.mmenu-group summary::-webkit-details-marker{display:none;}
.mmenu-group summary::after{content:'›';margin-left:auto;transition:transform .15s ease;color:var(--ink-soft);}
.mmenu-group[open] summary::after{transform:rotate(90deg);}
.mmenu-item.active, .mmenu-subitem.active{color:var(--turquoise-deep);font-weight:700;background:rgba(46,147,166,.09);}
body.dark .mmenu-item.active, body.dark .mmenu-subitem.active{color:var(--gold-light);}
.mmenu-subitem{display:flex;align-items:center;gap:10px;padding:10px 8px 10px 30px;border-radius:9px;color:var(--ink-soft);font-weight:500;font-size:14px;}
.mmenu-foot{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);}

/* ---------------- Mode sombre ---------------- */
body.dark{
  --bg:#0F1720; --card:#1A2530; --tint:#1E2A38; --ink:#E8EDF2; --ink-soft:#93A2B4; --line:#2A3846;
  --shadow-1:0 1px 2px rgba(0,0,0,.3), 0 8px 20px rgba(0,0,0,.28);
  --shadow-2:0 2px 6px rgba(0,0,0,.35), 0 16px 40px rgba(0,0,0,.4);
}
body.dark input[type=text], body.dark input[type=date], body.dark input[type=month], 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 tr.row-link:hover{background:#20303D;}
body.dark .add-line-btn{border-color:var(--line);}
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;}