:root{
  --bg: #05070c;
  --bg-2: #0a0f1c;
  --surface: #0d1526;
  --line: rgba(120,150,210,0.16);
  --steel: #e9edf5;
  --blue: #2f6bff;
  --blue-2: #63a4ff;
  --blue-dim: #17264a;
  --text: #eef2f8;
  --muted: #8391ab;
  --muted-2: #5b6785;
  --green: #6ee7ac;
  --orange: #ffcb82;
  --red: #ff8080;
}
*{box-sizing:border-box; margin:0; padding:0;}
body{
  background:var(--bg); color:var(--text); font-family:'Inter',sans-serif;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.display{font-family:'Rajdhani',sans-serif; font-weight:700; letter-spacing:0.02em; text-transform:uppercase;}
a{color:inherit;}
button{font-family:inherit; cursor:pointer;}

.brand-text{font-family:'Rajdhani'; font-weight:700; font-size:19px; letter-spacing:0.08em;}
.brand-text span{color:var(--blue-2);}

/* ---------- login ---------- */
.login-body{
  min-height:100vh; display:flex; align-items:center; justify-content:center;
  background:radial-gradient(circle at 50% 0%, #0c1730, var(--bg) 60%);
  padding:20px;
}
.login-card{
  width:100%; max-width:380px; background:linear-gradient(160deg, var(--surface), #070b16);
  border:1px solid var(--line); border-radius:6px; padding:38px 34px;
}
.login-brand{margin-bottom:30px; text-align:center;}
.login-sub{color:var(--muted); font-size:13px; letter-spacing:0.08em; margin-top:8px; text-transform:uppercase; font-family:'Rajdhani'; font-weight:600;}
.login-error{
  background:rgba(255,128,128,0.1); border:1px solid rgba(255,128,128,0.3); color:var(--red);
  font-size:13px; padding:10px 14px; border-radius:4px; margin-bottom:16px;
}

.field{margin-bottom:18px;}
.field label{font-size:12px; letter-spacing:0.08em; text-transform:uppercase; color:var(--muted); margin-bottom:7px; display:block;}
.field input, .field textarea, .field select{
  width:100%; background:var(--bg-2); border:1px solid var(--line); color:var(--text);
  padding:11px 14px; border-radius:3px; font-family:'Inter'; font-size:14px;
}
.field input:focus, .field textarea:focus, .field select:focus{outline:none; border-color:var(--blue-2);}

.btn-primary{
  width:100%; background:linear-gradient(100deg, var(--blue), #1a4fd6); color:#fff;
  font-family:'Rajdhani'; font-weight:700; letter-spacing:0.06em; text-transform:uppercase;
  font-size:14px; padding:13px 22px; border:none; border-radius:3px;
  box-shadow:0 8px 24px rgba(47,107,255,0.3);
}
.btn-ghost{
  background:transparent; border:1px solid var(--line); color:var(--steel);
  font-family:'Rajdhani'; font-weight:600; letter-spacing:0.05em; text-transform:uppercase;
  font-size:13px; padding:10px 18px; border-radius:3px;
}
.btn-ghost:hover{border-color:var(--blue-2);}
.btn-danger{
  background:transparent; border:1px solid rgba(255,128,128,0.35); color:var(--red);
  font-family:'Rajdhani'; font-weight:600; letter-spacing:0.05em; text-transform:uppercase;
  font-size:12px; padding:8px 14px; border-radius:3px;
}
.btn-icon{
  background:transparent; border:1px solid var(--line); color:var(--muted);
  font-size:12px; padding:8px 12px; border-radius:3px; font-family:'Rajdhani'; font-weight:600; letter-spacing:0.04em;
}
.btn-icon:hover{color:var(--steel); border-color:var(--blue-2);}
.btn-convert{border-color:rgba(110,231,172,0.35); color:var(--green);}
.btn-convert:hover{border-color:var(--green); background:rgba(110,231,172,0.08);}

/* ---------- shell ---------- */
.shell{min-height:100vh; display:flex; flex-direction:column;}
.topbar{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 32px; border-bottom:1px solid var(--line); background:rgba(5,7,12,0.9);
  position:sticky; top:0; z-index:10;
}
.topbar-right{display:flex; align-items:center; gap:14px;}
.topbar-email{font-size:13px; color:var(--muted);}

.main{flex:1; max-width:1180px; margin:0 auto; width:100%; padding:36px 32px 80px;}

.tabs{display:flex; gap:8px; margin-bottom:28px; border-bottom:1px solid var(--line);}
.tab{
  padding:12px 20px; font-family:'Rajdhani'; font-weight:600; letter-spacing:0.05em; text-transform:uppercase;
  font-size:14px; color:var(--muted); border-bottom:2px solid transparent; cursor:pointer;
}
.tab.active{color:var(--blue-2); border-color:var(--blue-2);}

.toolbar{display:flex; justify-content:space-between; align-items:center; margin-bottom:20px; gap:16px; flex-wrap:wrap;}
.toolbar-stats{display:flex; gap:24px; color:var(--muted); font-size:13px;}
.toolbar-stats b{color:var(--steel); font-family:'Rajdhani'; font-size:15px;}

table{width:100%; border-collapse:collapse;}
thead th{
  text-align:left; font-family:'Rajdhani'; font-weight:600; font-size:12px; letter-spacing:0.08em;
  color:var(--muted-2); text-transform:uppercase; padding:10px 14px; border-bottom:1px solid var(--line);
}
tbody td{padding:14px; border-bottom:1px solid var(--line); font-size:14px; vertical-align:middle;}
tbody tr:hover{background:rgba(47,107,255,0.04);}
.doc-number{font-family:'Rajdhani'; font-weight:700; color:var(--steel); letter-spacing:0.02em;}
.doc-client{color:var(--text);}
.doc-meta{color:var(--muted-2); font-size:12px;}
.doc-amount{font-family:'Rajdhani'; font-weight:700; color:var(--blue-2);}

.badge{
  display:inline-block; font-family:'Rajdhani'; font-weight:700; font-size:11px; letter-spacing:0.05em;
  padding:4px 10px; border-radius:20px; text-transform:uppercase;
}
.badge.brouillon, .badge.en_attente{background:rgba(150,160,190,0.12); color:var(--muted);}
.badge.envoyee, .badge.envoye{background:rgba(99,164,255,0.12); color:var(--blue-2);}
.badge.payee, .badge.accepte{background:rgba(110,231,172,0.12); color:var(--green);}
.badge.en_retard, .badge.refuse{background:rgba(255,128,128,0.12); color:var(--red);}

.status-select{
  font-family:'Rajdhani'; font-weight:700; font-size:11px; letter-spacing:0.05em;
  padding:5px 10px; border-radius:20px; text-transform:uppercase;
  border:1px solid transparent; cursor:pointer; appearance:none;
  background-color:rgba(150,160,190,0.12); color:var(--muted);
}
.status-select:hover{border-color:currentColor;}
.status-select:focus{outline:none; border-color:var(--blue-2);}
.status-select.brouillon, .status-select.en_attente{background-color:rgba(150,160,190,0.12); color:var(--muted);}
.status-select.envoyee, .status-select.envoye{background-color:rgba(99,164,255,0.12); color:var(--blue-2);}
.status-select.payee, .status-select.accepte{background-color:rgba(110,231,172,0.12); color:var(--green);}
.status-select.en_retard, .status-select.refuse{background-color:rgba(255,128,128,0.12); color:var(--red);}
.status-select option{background:var(--bg-2); color:var(--text);}

.row-actions{display:flex; gap:8px; justify-content:flex-end;}

.empty-state{
  text-align:center; padding:80px 20px; color:var(--muted-2);
}
.empty-state h3{color:var(--muted); font-size:16px; margin-bottom:10px;}

/* ---------- modal ---------- */
.modal-overlay{
  position:fixed; inset:0; background:rgba(2,4,8,0.72); backdrop-filter:blur(3px);
  display:flex; align-items:flex-start; justify-content:center; padding:40px 20px; z-index:200; overflow-y:auto;
}
.modal-overlay[hidden]{display:none;}
.modal{
  width:100%; max-width:680px; background:linear-gradient(165deg, var(--surface), #070b16);
  border:1px solid var(--line); border-radius:6px; padding:32px;
}
.modal-header{display:flex; justify-content:space-between; align-items:center; margin-bottom:24px;}
.modal-header h2{font-size:19px; letter-spacing:0.03em;}
.modal-close{background:transparent; border:none; color:var(--muted); font-size:22px; line-height:1;}

.form-row{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
.items-table{width:100%; margin:16px 0;}
.catalog-bar{display:flex; align-items:center; gap:10px; margin-bottom:14px; background:var(--bg-2); border:1px solid var(--line); border-radius:4px; padding:10px 12px;}
.catalog-label{font-size:12px; color:var(--muted); white-space:nowrap; font-family:'Rajdhani'; font-weight:600; letter-spacing:0.04em; text-transform:uppercase;}
.catalog-bar select{flex:1; background:var(--surface); border:1px solid var(--line); color:var(--text); padding:8px 10px; border-radius:3px; font-size:13px;}
.items-head{display:grid; grid-template-columns:1fr 70px 100px 100px 34px; gap:10px; font-size:11px; color:var(--muted-2); letter-spacing:0.06em; text-transform:uppercase; padding:0 2px 8px;}
.item-row{display:grid; grid-template-columns:1fr 70px 100px 100px 34px; gap:10px; margin-bottom:10px; align-items:center;}
.item-row input{padding:9px 10px; font-size:13px;}
.item-remove{background:transparent; border:none; color:var(--muted-2); font-size:18px;}
.item-remove:hover{color:var(--red);}
.add-item-btn{margin-top:4px;}

.totals-preview{
  margin-top:10px; padding:16px; background:var(--bg-2); border:1px solid var(--line); border-radius:4px;
  font-size:13px; color:var(--muted); display:flex; flex-direction:column; gap:6px;
}
.totals-preview .total-line{display:flex; justify-content:space-between;}
.totals-preview .grand{color:var(--blue-2); font-family:'Rajdhani'; font-weight:700; font-size:16px; padding-top:8px; border-top:1px solid var(--line); margin-top:4px;}

.modal-actions{display:flex; justify-content:flex-end; gap:12px; margin-top:26px;}

.toast{
  position:fixed; bottom:24px; right:24px; background:var(--surface); border:1px solid var(--line);
  padding:14px 20px; border-radius:4px; font-size:13px; color:var(--steel); z-index:300;
  box-shadow:0 10px 30px rgba(0,0,0,0.4);
}
.toast.error{border-color:rgba(255,128,128,0.4); color:var(--red);}
.toast[hidden]{display:none;}

@media (max-width:720px){
  .form-row{grid-template-columns:1fr;}
  .items-head{display:none;}
  .item-row{grid-template-columns:1fr 1fr; row-gap:8px;}
  .topbar{padding:14px 18px;}
  .main{padding:24px 18px 60px;}
  table, thead{display:none;}
  tbody, tr, td{display:block; width:100%;}
  tbody tr{border:1px solid var(--line); border-radius:6px; margin-bottom:14px; padding:12px;}
  tbody td{border-bottom:none; padding:6px 0;}
}