:root {
    --bg: #0b1020;
    --panel: #111827;
    --card: #172033;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --primary: #6366f1;
    --danger: #ef4444;
    --success: #22c55e;
    --border: #26324a;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}
a { color: inherit; }
.sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: 240px;
    background: var(--panel);
    padding: 22px;
    border-right: 1px solid var(--border);
    overflow-y: auto;
}
.brand {
    font-weight: 800;
    font-size: 22px;
    margin-bottom: 24px;
}
.sidebar a {
    display: block;
    padding: 10px 12px;
    color: var(--muted);
    text-decoration: none;
    border-radius: 10px;
    margin-bottom: 4px;
}
.sidebar a:hover { background: #1f2937; color: white; }
.main { margin-left: 260px; padding: 28px; }
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 18px;
    margin-bottom: 18px;
}
.grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}
.stat { font-size: 32px; font-weight: 800; }
.muted { color: var(--muted); }
input, textarea, select {
    width: 100%;
    background: #0f172a;
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px;
    margin: 6px 0;
}
button, .btn {
    background: var(--primary);
    color: white;
    border: 0;
    border-radius: 10px;
    padding: 10px 14px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}
.table {
    width: 100%;
    border-collapse: collapse;
}
.table th, .table td {
    border-bottom: 1px solid var(--border);
    padding: 10px;
    text-align: left;
}
.alert { padding: 12px; border-radius: 10px; margin-bottom: 12px; }
.alert-danger { background: rgba(239,68,68,.15); color: #fecaca; }
.alert-success { background: rgba(34,197,94,.15); color: #bbf7d0; }
.login-wrap { max-width: 430px; margin: 80px auto; }
@media (max-width: 900px) {
    .sidebar { position: static; width: auto; }
    .main { margin-left: 0; }
    .grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }

.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 16px; }
.toolbar input { margin: 0; max-width: 420px; }
.btn.secondary, button.secondary { background: #334155; }
button.danger, .btn.danger { background: var(--danger); }
.actions { white-space: nowrap; }
.actions .btn, .actions button { padding: 7px 10px; margin: 2px; }
.table-wrap { overflow-x: auto; }
label { display: block; color: var(--muted); margin-top: 8px; font-size: 14px; }

/* ===== Tuiles a icones (tableau de bord V3, face hebergeur) ===== */
.section-title{margin:26px 0 12px;display:flex;align-items:center;gap:10px;color:#cbd5e1;font-weight:700;font-size:15px}
.section-title .line{flex:1;height:1px;background:var(--border)}
.tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.tile{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:10px;min-height:104px;text-decoration:none;color:var(--text);transition:.15s}
.tile:hover{transform:translateY(-2px);border-color:#3b4a6b;background:#1b2540}
.tile .ic{width:40px;height:40px;border-radius:11px;display:grid;place-items:center}
.tile .ic svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.tile .t{font-weight:650;font-size:14.5px}
.tile .d{color:var(--muted);font-size:12.5px;line-height:1.35}
.c-indigo{background:linear-gradient(135deg,#6366f1,#4338ca)}
.c-blue{background:linear-gradient(135deg,#3b82f6,#1d4ed8)}
.c-green{background:linear-gradient(135deg,#22c55e,#15803d)}
.c-amber{background:linear-gradient(135deg,#f59e0b,#b45309)}
.c-pink{background:linear-gradient(135deg,#ec4899,#9d174d)}
.c-cyan{background:linear-gradient(135deg,#06b6d4,#0e7490)}
.c-red{background:linear-gradient(135deg,#ef4444,#991b1b)}
.c-slate{background:linear-gradient(135deg,#64748b,#334155)}

/* ===== Menu lateral groupe (V3) ===== */
.sidebar .brand{display:flex;align-items:center;gap:9px}
.sidebar .dash{display:block;padding:10px 12px;border-radius:9px;font-weight:700;margin-bottom:8px}
.sidebar details{margin-bottom:4px}
.sidebar summary{list-style:none;cursor:pointer;padding:9px 12px;border-radius:9px;color:#cbd5e1;font-weight:650;font-size:13px;display:flex;align-items:center;gap:8px}
.sidebar summary::-webkit-details-marker{display:none}
.sidebar summary:hover{background:#1f2937;color:#fff}
.sidebar summary::after{content:"\25B8";margin-left:auto;font-size:11px;color:#64748b;transition:transform .15s}
.sidebar details[open]>summary::after{transform:rotate(90deg)}
.sidebar details a{font-size:13.5px;padding:7px 12px 7px 28px;margin-bottom:2px}
.sidebar a.active{background:linear-gradient(135deg,#6366f1,#2563eb);color:#fff}
.sidebar .logout-top{color:#93a4ba;font-size:13px}