:root {
  --primary: #1a3a5c;
  --primary-light: #2563a8;
  --accent: #e67e22;
  --success: #27ae60;
  --danger: #e74c3c;
  --warning: #f39c12;
  --info: #3498db;
  --bg: #f0f4f8;
  --bg-card: #ffffff;
  --sidebar-w: 255px;
  --text: #2c3e50;
  --text-muted: #7f8c8d;
  --border: #dde3ec;
  --shadow: 0 2px 8px rgba(0,0,0,0.07);
  --radius: 10px;
}
* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:'Segoe UI',system-ui,sans-serif; background:var(--bg); color:var(--text); font-size:14px; line-height:1.5; }

#app { display:flex; height:100vh; overflow:hidden; }

/* SIDEBAR */
#sidebar { width:var(--sidebar-w); background:#ffffff; color:var(--text); border-right:1px solid var(--border); display:flex; flex-direction:column; flex-shrink:0; height:100vh; overflow-y:auto; }
#sidebar-logo { padding:18px 16px; border-bottom:1px solid var(--border); display:flex; align-items:center; gap:10px; }
#sidebar-logo .logo-icon { width:38px; height:38px; background:var(--accent); border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:20px; font-weight:900; color:#fff; flex-shrink:0; }
#sidebar-logo .logo-text { font-size:15px; font-weight:800; color:var(--primary); }
#sidebar-logo .logo-sub { font-size:10px; opacity:.5; text-transform:uppercase; letter-spacing:1px; color:var(--text-muted); }
.nav-section { padding:10px 8px 2px; }
.nav-section-label { font-size:9px; text-transform:uppercase; letter-spacing:1.5px; color:var(--text-muted); padding:0 8px; margin-bottom:3px; }
.nav-item { display:flex; align-items:center; gap:9px; padding:8px 12px; border-radius:8px; cursor:pointer; transition:background .12s; margin-bottom:2px; color:var(--text-muted); font-size:13px; }
.nav-item:hover { background:var(--bg); color:var(--primary); }
.nav-item.active { background:#eef4fb; color:var(--primary); font-weight:600; }
.nav-icon { font-size:15px; width:18px; text-align:center; flex-shrink:0; }
.sidebar-footer { margin-top:auto; padding:10px 8px; border-top:1px solid var(--border); }

/* MAIN */
#main { flex:1; display:flex; flex-direction:column; overflow:hidden; }
#topbar { background:#fff; border-bottom:1px solid var(--border); padding:0 24px; height:56px; display:flex; align-items:center; gap:16px; flex-shrink:0; }
#topbar-title { font-size:17px; font-weight:800; color:var(--primary); }
.topbar-actions { margin-left:auto; display:flex; gap:8px; align-items:center; }
.topbar-search { display:flex; align-items:center; gap:8px; background:var(--bg); border:1px solid var(--border); border-radius:8px; padding:7px 12px; width:220px; }
.topbar-search input { border:none; background:none; outline:none; font-size:13px; color:var(--text); width:100%; }
.topbar-notif { position:relative; cursor:pointer; background:var(--bg); border:1px solid var(--border); border-radius:8px; padding:7px 10px; font-size:15px; }
.notif-dot { position:absolute; top:5px; right:5px; width:7px; height:7px; background:var(--danger); border-radius:50%; border:1px solid #fff; }
.topbar-user { display:flex; align-items:center; gap:8px; cursor:pointer; padding:5px 10px; border-radius:8px; }
.topbar-user:hover { background:var(--bg); }
.avatar { width:32px; height:32px; border-radius:50%; background:var(--primary); color:#fff; display:flex; align-items:center; justify-content:center; font-weight:700; font-size:12px; }

#content { flex:1; overflow-y:auto; padding:20px 24px; }

/* CARDS */
.card { background:#fff; border-radius:var(--radius); box-shadow:var(--shadow); border:1px solid var(--border); margin-bottom:18px; }
.card-header { padding:14px 20px; border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; }
.card-title { font-size:14px; font-weight:700; color:var(--text); }
.card-body { padding:18px 20px; }

/* KPI */
.kpi-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(190px,1fr)); gap:14px; margin-bottom:20px; }
.kpi-card { background:#fff; border-radius:var(--radius); box-shadow:var(--shadow); border:1px solid var(--border); padding:18px; display:flex; flex-direction:column; gap:6px; }
.kpi-icon { width:42px; height:42px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:20px; }
.kpi-label { font-size:11px; color:var(--text-muted); font-weight:600; text-transform:uppercase; letter-spacing:.4px; }
.kpi-value { font-size:24px; font-weight:800; color:var(--text); }
.kpi-trend { font-size:11px; color:var(--success); }
.kpi-trend.down { color:var(--danger); }

/* TABLE */
.data-table { width:100%; border-collapse:collapse; }
.data-table thead tr { background:#f8fafc; }
.data-table th { padding:9px 14px; text-align:left; font-size:10.5px; font-weight:700; text-transform:uppercase; letter-spacing:.4px; color:var(--text-muted); border-bottom:2px solid var(--border); }
.data-table td { padding:10px 14px; border-bottom:1px solid var(--border); vertical-align:middle; font-size:13px; }
.data-table tbody tr:last-child td { border-bottom:none; }
.data-table tbody tr:hover { background:#f8fafc; }
.td-actions { display:flex; gap:5px; }

/* BADGES */
.badge { display:inline-flex; align-items:center; padding:2px 9px; border-radius:20px; font-size:11px; font-weight:600; white-space:nowrap; }
.badge-success { background:#d5f5e3; color:#1e8449; }
.badge-danger  { background:#fde8e8; color:#c0392b; }
.badge-warning { background:#fef3cd; color:#9a6700; }
.badge-info    { background:#d6eaf8; color:#1a5276; }
.badge-muted   { background:#ecf0f1; color:#7f8c8d; }
.badge-primary { background:#d6e4f0; color:#1a3a5c; }

/* BUTTONS */
.btn { display:inline-flex; align-items:center; gap:5px; padding:8px 15px; border-radius:8px; border:none; font-size:13px; font-weight:600; cursor:pointer; transition:all .12s; white-space:nowrap; text-decoration:none; }
.btn-primary { background:var(--primary-light); color:#fff; }
.btn-primary:hover { background:var(--primary); }
.btn-accent  { background:var(--accent); color:#fff; }
.btn-success { background:var(--success); color:#fff; }
.btn-danger  { background:var(--danger); color:#fff; }
.btn-outline { background:transparent; color:var(--text); border:1px solid var(--border); }
.btn-outline:hover { background:var(--bg); }
.btn-sm { padding:5px 11px; font-size:12px; }

/* FORMS */
.form-grid { display:grid; gap:14px; }
.form-grid-2 { grid-template-columns:1fr 1fr; }
.form-grid-3 { grid-template-columns:1fr 1fr 1fr; }
.form-group { display:flex; flex-direction:column; gap:5px; }
.form-label { font-size:11px; font-weight:700; color:var(--text-muted); text-transform:uppercase; letter-spacing:.3px; }
.form-control { border:1px solid var(--border); border-radius:8px; padding:8px 12px; font-size:13.5px; color:var(--text); background:#fff; outline:none; transition:border .12s; width:100%; }
.form-control:focus { border-color:var(--primary-light); box-shadow:0 0 0 3px rgba(37,99,168,.1); }
select.form-control { cursor:pointer; }

.form-section { background:#f8fafc; border-radius:8px; padding:14px; border:1px solid var(--border); margin-bottom:14px; }
.form-section-title { font-size:12px; font-weight:700; color:var(--primary); margin-bottom:12px; padding-bottom:7px; border-bottom:1px solid var(--border); }

/* MODAL */
.modal-overlay { position:fixed; inset:0; background:rgba(0,0,0,.5); z-index:1000; display:flex; align-items:center; justify-content:center; padding:20px; }
.modal { background:#fff; border-radius:14px; box-shadow:0 20px 60px rgba(0,0,0,.2); width:100%; max-height:90vh; overflow-y:auto; animation:mIn .18s ease; }
.modal-sm { max-width:460px; }
.modal-md { max-width:680px; }
.modal-lg { max-width:880px; }
.modal-xl { max-width:1060px; }
@keyframes mIn { from{opacity:0;transform:scale(.96) translateY(-8px)} to{opacity:1;transform:scale(1) translateY(0)} }
.modal-header { padding:18px 22px; border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; }
.modal-title { font-size:16px; font-weight:700; }
.modal-close { width:30px; height:30px; border-radius:7px; border:none; background:var(--bg); cursor:pointer; font-size:16px; display:flex; align-items:center; justify-content:center; color:var(--text-muted); }
.modal-close:hover { background:var(--border); }
.modal-body { padding:22px; }
.modal-footer { padding:14px 22px; border-top:1px solid var(--border); display:flex; justify-content:flex-end; gap:8px; }

/* TABS */
.tabs { display:flex; gap:3px; border-bottom:2px solid var(--border); margin-bottom:18px; }
.tab { padding:9px 16px; cursor:pointer; border-radius:7px 7px 0 0; font-size:13px; font-weight:600; color:var(--text-muted); border:1px solid transparent; border-bottom:none; transition:all .12s; margin-bottom:-2px; }
.tab:hover { color:var(--text); background:var(--bg); }
.tab.active { color:var(--primary-light); border-color:var(--border); border-bottom:2px solid #fff; background:#fff; }

/* FICHE SALAIRE */
.fiche-section { margin-bottom:14px; }
.fiche-section-title { background:var(--primary); color:#fff; padding:4px 10px; font-weight:700; font-size:11px; text-transform:uppercase; letter-spacing:.8px; }
.fiche-line { display:flex; justify-content:space-between; padding:4px 10px; border-bottom:1px solid #f5f5f5; font-size:13px; }
.fiche-line:nth-child(even) { background:#f8fafc; }
.fl-val { font-weight:600; }
.fl-val.neg { color:var(--danger); }

/* PROGRESS */
.progress-bar-wrap { background:#ecf0f1; border-radius:20px; height:7px; overflow:hidden; }
.progress-bar { height:100%; border-radius:20px; transition:width .5s; }

/* ALERTS */
.alert { padding:11px 15px; border-radius:8px; display:flex; align-items:center; gap:9px; margin-bottom:14px; font-size:13px; }
.alert-success { background:#d5f5e3; color:#1e8449; border:1px solid #a9dfbf; }
.alert-danger  { background:#fde8e8; color:#c0392b; border:1px solid #f1948a; }
.alert-warning { background:#fef3cd; color:#9a6700; border:1px solid #f9e79f; }
.alert-info    { background:#d6eaf8; color:#1a5276; border:1px solid #aed6f1; }

/* STAT PILL */
.stat-pill { display:flex; align-items:center; gap:8px; background:#fff; border:1px solid var(--border); border-radius:8px; padding:9px 14px; }
.sp-icon { font-size:18px; }
.sp-val  { font-size:16px; font-weight:800; }
.sp-lbl  { font-size:11px; color:var(--text-muted); }

/* EMPTY STATE */
.empty-state { text-align:center; padding:50px 20px; color:var(--text-muted); }
.es-icon  { font-size:46px; margin-bottom:14px; opacity:.4; }
.es-title { font-size:15px; font-weight:700; margin-bottom:5px; color:var(--text); }
.es-sub   { font-size:13px; }

/* SCROLLBAR */
::-webkit-scrollbar { width:5px; height:5px; }
::-webkit-scrollbar-track { background:transparent; }
::-webkit-scrollbar-thumb { background:#c5cdd8; border-radius:10px; }

@media (max-width:900px) {
  #sidebar { width:60px; }
  .nav-label, .nav-section-label, .logo-text, .logo-sub { display:none; }
  .form-grid-2, .form-grid-3 { grid-template-columns:1fr; }
  .kpi-grid { grid-template-columns:1fr 1fr; }
}
@media print {
  #sidebar, #topbar, .no-print, .btn { display:none !important; }
  #content { padding:0; }
}