:root {
    --admin-sidebar: #0D1117;
    --admin-sidebar-hover: #1C2630;
    --admin-header: #FFFFFF;
    --admin-primary: #E8720C;
    --admin-primary-light: #F5891F;
    --admin-green: #3AB820;
    --admin-bg: #F2F7FA;
    --admin-card: #FFFFFF;
    --admin-text: #1C2630;
    --admin-text-muted: #8FA3B0;
    --admin-border: #E8EDF2;
    --admin-danger: #DC3545;
    --admin-success: #28A745;
    --admin-warning: #FFC107;
    --font-body: 'Sora', sans-serif;
    --font-head: 'DM Serif Display', serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-body); background: var(--admin-bg); color: var(--admin-text); }
.admin-auth { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #0D1117, #1C2630); padding: 20px; }
.admin-auth-card { background: white; border-radius: 20px; padding: 40px; width: 100%; max-width: 420px; box-shadow: 0 30px 80px rgba(0,0,0,0.3); }
.admin-auth-logo { text-align: center; margin-bottom: 30px; }
.admin-auth-logo img { height: 50px; }
.admin-auth h1 { font-family: var(--font-head); font-size: 1.8rem; text-align: center; margin-bottom: 8px; }
.admin-auth p { text-align: center; color: var(--admin-text-muted); margin-bottom: 30px; font-size: 0.9rem; }
.admin-auth .form-group { margin-bottom: 20px; }
.admin-auth label { display: block; font-weight: 600; font-size: 0.85rem; margin-bottom: 8px; color: var(--admin-text); }
.admin-auth input { width: 100%; padding: 14px 16px; border: 1.5px solid var(--admin-border); border-radius: 10px; font-family: var(--font-body); font-size: 0.95rem; transition: all 0.2s; }
.admin-auth input:focus { border-color: var(--admin-primary); box-shadow: 0 0 0 3px rgba(232,114,12,0.1); outline: none; }
.admin-auth .btn-primary { width: 100%; padding: 14px; background: linear-gradient(135deg, var(--admin-primary), var(--admin-primary-light)); color: white; border: none; border-radius: 10px; font-size: 1rem; font-weight: 600; cursor: pointer; transition: all 0.2s; font-family: var(--font-body); }
.admin-auth .btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(232,114,12,0.4); }
.admin-auth .remember-me { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--admin-text-muted); margin-bottom: 20px; }
.admin-auth .remember-me input { width: auto; }
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar { width: 260px; background: var(--admin-sidebar); color: white; position: fixed; top: 0; left: 0; height: 100vh; overflow-y: auto; z-index: 100; }
.admin-sidebar-brand { padding: 20px 24px; border-bottom: 1px solid rgba(255,255,255,0.06); display: flex; align-items: center; gap: 12px; }
.admin-sidebar-brand img { height: 36px; }
.admin-sidebar-brand span { font-family: var(--font-head); font-size: 1.2rem; }
.admin-sidebar-nav { padding: 16px 0; }
.admin-sidebar-nav a { display: flex; align-items: center; gap: 12px; padding: 12px 24px; color: rgba(255,255,255,0.6); text-decoration: none; font-size: 0.88rem; font-weight: 500; transition: all 0.2s; }
.admin-sidebar-nav a:hover, .admin-sidebar-nav a.active { background: var(--admin-sidebar-hover); color: white; }
.admin-sidebar-nav a i { width: 20px; text-align: center; font-size: 1rem; }
.admin-main { margin-left: 260px; flex: 1; }
.admin-header { background: var(--admin-header); border-bottom: 1px solid var(--admin-border); padding: 0 30px; height: 64px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 50; }
.admin-header-left { display: flex; align-items: center; gap: 16px; }
.admin-header-left h2 { font-size: 1.1rem; font-weight: 600; }
.admin-header-right { display: flex; align-items: center; gap: 16px; }
.admin-content { padding: 30px; }
.stat-card { background: var(--admin-card); border-radius: 14px; padding: 24px; border: 1px solid var(--admin-border); }
.stat-card-icon { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; margin-bottom: 16px; }
.stat-card-icon.orange { background: rgba(232,114,12,0.1); color: var(--admin-primary); }
.stat-card-icon.green { background: rgba(58,184,32,0.1); color: var(--admin-green); }
.stat-card-icon.red { background: rgba(220,53,69,0.1); color: var(--admin-danger); }
.stat-card-icon.blue { background: rgba(13,110,253,0.1); color: #0D6EFD; }
.stat-card-value { font-family: var(--font-head); font-size: 2rem; color: var(--admin-text); }
.stat-card-label { font-size: 0.82rem; color: var(--admin-text-muted); margin-top: 4px; }
.admin-table { width: 100%; background: var(--admin-card); border-radius: 14px; border: 1px solid var(--admin-border); overflow: hidden; }
.admin-table table { width: 100%; border-collapse: collapse; }
.admin-table th { background: var(--admin-bg); padding: 14px 18px; text-align: left; font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--admin-text-muted); }
.admin-table td { padding: 14px 18px; border-top: 1px solid var(--admin-border); font-size: 0.88rem; }
.admin-table tr:hover td { background: rgba(0,0,0,0.02); }
.admin-card { background: var(--admin-card); border-radius: 14px; border: 1px solid var(--admin-border); padding: 24px; }
.admin-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--admin-border); }
.admin-card-header h3 { font-size: 1.05rem; font-weight: 600; }
.admin-form-group { margin-bottom: 20px; }
.admin-form-group label { display: block; font-weight: 600; font-size: 0.85rem; margin-bottom: 8px; color: var(--admin-text); }
.admin-form-group input, .admin-form-group select, .admin-form-group textarea { width: 100%; padding: 12px 16px; border: 1.5px solid var(--admin-border); border-radius: 8px; font-family: var(--font-body); font-size: 0.9rem; transition: all 0.2s; }
.admin-form-group input:focus, .admin-form-group select:focus, .admin-form-group textarea:focus { border-color: var(--admin-primary); box-shadow: 0 0 0 3px rgba(232,114,12,0.1); outline: none; }
.admin-btn { padding: 10px 20px; border-radius: 8px; font-family: var(--font-body); font-size: 0.88rem; font-weight: 600; cursor: pointer; transition: all 0.2s; border: none; display: inline-flex; align-items: center; gap: 8px; }
.admin-btn-primary { background: linear-gradient(135deg, var(--admin-primary), var(--admin-primary-light)); color: white; }
.admin-btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(232,114,12,0.3); }
.admin-btn-danger { background: var(--admin-danger); color: white; }
.admin-btn-success { background: var(--admin-success); color: white; }
.admin-btn-ghost { background: transparent; border: 1.5px solid var(--admin-border); color: var(--admin-text); }
.badge { display: inline-flex; padding: 4px 12px; border-radius: 20px; font-size: 0.72rem; font-weight: 600; }
.badge-success { background: rgba(40,167,69,0.1); color: var(--admin-success); }
.badge-danger { background: rgba(220,53,69,0.1); color: var(--admin-danger); }
.badge-warning { background: rgba(255,193,7,0.1); color: #856404; }
.badge-info { background: rgba(13,110,253,0.1); color: #0D6EFD; }
.admin-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-bottom: 30px; }
.admin-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.admin-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.admin-search { display: flex; gap: 10px; margin-bottom: 20px; }
.admin-search input { flex: 1; max-width: 300px; padding: 10px 16px; border: 1.5px solid var(--admin-border); border-radius: 8px; font-family: var(--font-body); }
.admin-search button { padding: 10px 20px; background: var(--admin-primary); color: white; border: none; border-radius: 8px; cursor: pointer; font-weight: 600; }
.toast { position: fixed; top: 20px; right: 20px; z-index: 9999; padding: 16px 24px; border-radius: 10px; color: white; font-weight: 500; font-size: 0.9rem; box-shadow: 0 10px 40px rgba(0,0,0,0.15); animation: slideIn 0.3s ease; }
.toast-success { background: var(--admin-success); }
.toast-error { background: var(--admin-danger); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes modalSlideUp { from { opacity: 0; transform: translateY(30px) scale(0.97); } to { opacity: 1; transform: translateY(0) scale(1); } }
@media (max-width: 900px) { .admin-sidebar { width: 0; overflow: hidden; } .admin-main { margin-left: 0; } .admin-grid-2, .admin-grid-3 { grid-template-columns: 1fr; } }
.dropzone { border: 2px dashed var(--admin-border); border-radius: 12px; padding: 40px; text-align: center; cursor: pointer; transition: all 0.2s; }
.dropzone:hover { border-color: var(--admin-primary); background: rgba(232,114,12,0.03); }
.dropzone i { font-size: 2.5rem; color: var(--admin-text-muted); margin-bottom: 12px; }
.dropzone p { color: var(--admin-text-muted); font-size: 0.9rem; }
.admin-pagination { display: flex; justify-content: center; gap: 6px; margin-top: 20px; }
.admin-pagination a, .admin-pagination span { padding: 8px 14px; border-radius: 6px; border: 1px solid var(--admin-border); color: var(--admin-text); text-decoration: none; font-size: 0.85rem; }
.admin-pagination a:hover, .admin-pagination .active { background: var(--admin-primary); color: white; border-color: var(--admin-primary); }
@media (prefers-color-scheme: dark) { .admin-auth { background: linear-gradient(135deg, #0D1117, #000000); } }