:root{--bg: #f1f5f9;--surface: #ffffff;--surface-2: #f8fafc;--border: #e2e8f0;--border-strong: #cbd5e1;--text: #0f172a;--text-muted: #64748b;--text-light: #94a3b8;--primary: #2563eb;--primary-hover: #1d4ed8;--primary-light: #dbeafe;--success: #16a34a;--success-light: #dcfce7;--warning: #d97706;--warning-light: #fef3c7;--danger: #dc2626;--danger-light: #fee2e2;--info: #0891b2;--info-light: #cffafe;--purple: #7c3aed;--purple-light: #ede9fe;--radius: 8px;--radius-sm: 6px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 6px -1px rgba(0,0,0,.08), 0 2px 4px -2px rgba(0,0,0,.05);--sidebar-w: 248px}[data-theme=dark]{--bg: #0b1120;--surface: #1e293b;--surface-2: #172033;--border: #334155;--border-strong: #475569;--text: #f1f5f9;--text-muted: #94a3b8;--text-light: #64748b;--primary-light: #1e3a5f;--success-light: #14532d;--warning-light: #78350f;--danger-light: #7f1d1d;--info-light: #164e63;--purple-light: 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var(--border);border-radius:var(--radius);box-shadow:var(--shadow-md);z-index:200;margin-top:8px;max-height:420px;overflow-y:auto}.notif-item{padding:12px 16px;border-bottom:1px solid var(--border);cursor:pointer}.notif-item:hover{background:var(--surface-2)}.notif-item.unread{background:var(--primary-light)}.notif-item .msg{font-size:13px}.notif-item .time{font-size:11px;color:var(--text-light);margin-top:2px}@media (max-width: 768px){.sidebar{transform:translate(-100%);transition:transform .2s}.sidebar.open{transform:translate(0)}.main{margin-left:0}.form-row,.form-row-3,.grid-2,.grid-3{grid-template-columns:1fr}.search-box{width:180px}}