:root{
  --bg:#f5f7fb; --surface:#ffffff; --surface-2:#f0f3f8; --border:#d9e0ea; --text:#1f2937;
  --muted:#6b7280; --primary:#2563eb; --success:#15803d; --danger:#b91c1c; --warning:#b45309;
  --dark:#111827; --sidebar:#1f2937; --sidebar-soft:#374151; --sidebar-text:#e5e7eb;
  --shadow:0 8px 24px rgba(15,23,42,.06); --radius:12px;
}
*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Arial,Helvetica,sans-serif}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%}
.admin-layout{display:flex;min-height:100vh}.admin-sidebar{width:270px;background:var(--sidebar);color:var(--sidebar-text);padding:20px 14px;flex-shrink:0}.admin-brand{display:flex;align-items:center;gap:12px;padding:6px 10px 18px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:18px}.admin-brand img{max-height:42px;max-width:52px}.admin-brand-title{font-size:20px;font-weight:700;color:#fff}.admin-brand-subtitle{font-size:12px;color:#cbd5e1}.admin-sidebar-section{margin-bottom:16px}.admin-sidebar-heading{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:#9ca3af;margin:0 0 8px;padding:0 10px}.admin-sidebar a{display:block;color:var(--sidebar-text);padding:10px 12px;border-radius:10px;margin-bottom:4px}.admin-sidebar a:hover,.admin-sidebar a.is-active{background:var(--sidebar-soft);text-decoration:none}.admin-main{flex:1;min-width:0;display:flex;flex-direction:column}.admin-topbar{background:var(--surface);border-bottom:1px solid var(--border);padding:18px 24px;display:flex;justify-content:space-between;gap:16px;align-items:center;box-shadow:var(--shadow)}.admin-topbar-title{font-size:22px;font-weight:700;margin:0}.admin-topbar-subtitle{font-size:13px;color:var(--muted);margin-top:4px}.admin-topbar-actions{display:flex;gap:10px;flex-wrap:wrap}.admin-content{padding:24px}.container{width:100%;max-width:100%;margin:0}.row{display:flex;flex-wrap:wrap;margin:0 -10px}.row>*{padding:0 10px}.col-md-2,.col-md-3,.col-md-4,.col-md-5,.col-md-6,.col-md-8,.col-md-9,.col-md-10,.col-md-12,.col-xl-2{width:100%;margin-bottom:20px}@media(min-width:768px){.col-md-2{width:16.666%}.col-md-3{width:25%}.col-md-4{width:33.333%}.col-md-5{width:41.666%}.col-md-6{width:50%}.col-md-8{width:66.666%}.col-md-9{width:75%}.col-md-10{width:83.333%}.col-md-12{width:100%}}@media(min-width:1200px){.col-xl-2{width:16.666%}}
.d-flex{display:flex}.justify-content-between{justify-content:space-between}.justify-content-center{justify-content:center}.align-items-center{align-items:center}.flex-wrap{flex-wrap:wrap}.gap-2{gap:.5rem}.gap-3{gap:.75rem}.w-100{width:100%}.h-100{height:100%}.text-center{text-align:center}.text-white{color:#fff}.text-dark{color:var(--text)}.text-muted{color:var(--muted)}.text-primary{color:var(--primary)}.text-danger{color:var(--danger)}.text-decoration-none{text-decoration:none}.small{font-size:12px}.fw-bold,.fw-semibold{font-weight:700}.mb-0{margin-bottom:0}.mb-1{margin-bottom:.25rem}.mb-2{margin-bottom:.5rem}.mb-3{margin-bottom:.75rem}.mb-4{margin-bottom:1rem}.mb-5{margin-bottom:1.5rem}.mt-1{margin-top:.25rem}.mt-3{margin-top:.75rem}.mt-4{margin-top:1rem}.mt-5{margin-top:1.5rem}.p-3{padding:1rem}.p-4{padding:1.25rem}.pt-4{padding-top:1rem}.pb-3{padding-bottom:.75rem}.border{border:1px solid var(--border)}.border-0{border:0}.border-bottom{border-bottom:1px solid var(--border)}.rounded,.rounded-3{border-radius:var(--radius)}.shadow,.shadow-sm{box-shadow:var(--shadow)}.bg-light{background:var(--surface-2)}.bg-white{background:var(--surface)}.bg-primary{background:var(--primary)}.bg-success{background:var(--success)}.bg-info{background:#0f766e}.bg-warning{background:#d97706}.bg-secondary{background:#475569}.bg-dark{background:var(--dark)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.card-header{padding:14px 18px;border-bottom:1px solid var(--border);font-weight:700}.card-body{padding:18px}.card-footer{padding:14px 18px;border-top:1px solid var(--border)}.table-responsive{overflow:auto}.table{width:100%;border-collapse:collapse;background:var(--surface)}.table th,.table td{border:1px solid var(--border);padding:10px 12px;vertical-align:middle}.table-dark th{background:var(--dark);color:#fff}.table-hover tbody tr:hover{background:#f8fafc}.form-control,.form-select,textarea,input,select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:#fff;color:var(--text)}.form-control:focus,.form-select:focus,textarea:focus,input:focus,select:focus{outline:none;border-color:var(--primary)}.form-label{display:block;margin-bottom:6px;font-weight:700}.form-text{font-size:12px;color:var(--muted)}.btn{display:inline-block;border:1px solid transparent;border-radius:10px;padding:10px 14px;font-weight:700;cursor:pointer;background:#fff;color:var(--text);text-decoration:none}.btn:hover{text-decoration:none;opacity:.95}.btn-sm{padding:7px 10px;font-size:12px}.btn-lg{padding:12px 16px}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-success{background:var(--success);border-color:var(--success);color:#fff}.btn-danger,.btn-outline-danger:hover{background:var(--danger);border-color:var(--danger);color:#fff}.btn-warning{background:var(--warning);border-color:var(--warning);color:#fff}.btn-dark{background:var(--dark);border-color:var(--dark);color:#fff}.btn-outline-primary{border-color:var(--primary);color:var(--primary);background:#fff}.btn-outline-secondary{border-color:#94a3b8;color:#334155;background:#fff}.btn-outline-info{border-color:#0f766e;color:#0f766e;background:#fff}.btn-outline-warning{border-color:var(--warning);color:var(--warning);background:#fff}.btn-outline-danger{border-color:var(--danger);color:var(--danger);background:#fff}.btn-group{display:inline-flex;gap:6px;flex-wrap:wrap}.btn-group-sm .btn{padding:7px 9px;font-size:12px}.alert{padding:12px 14px;border-radius:10px;margin-bottom:16px;border:1px solid var(--border)}.alert-success{background:#ecfdf5;color:#166534;border-color:#a7f3d0}.alert-danger{background:#fef2f2;color:#991b1b;border-color:#fecaca}.badge{display:inline-block;padding:4px 8px;border-radius:999px;font-size:12px;font-weight:700}.bg-danger,.text-bg-danger{background:var(--danger)!important;color:#fff}.bg-success,.text-bg-success{background:var(--success)!important;color:#fff}.text-bg-secondary{background:#64748b!important;color:#fff}hr{border:0;border-top:1px solid var(--border);margin:18px 0}.admin-footer{padding:16px 24px;color:var(--muted);border-top:1px solid var(--border);background:var(--surface)}.notice-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.stat-card{padding:18px;border-radius:14px;background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow)}.stat-card h2{margin:8px 0 0;font-size:30px}@media(max-width:900px){.admin-layout{flex-direction:column}.admin-sidebar{width:100%}.admin-topbar{padding:16px}.admin-content{padding:16px}}