:root{--primary: #1e293b;--accent: #2563eb;--accent-hover: #1d4ed8;--bg-main: #f8fafc;--bg-card: #ffffff;--text-dark: #0f172a;--text-muted: #64748b;--border: #e2e8f0;--danger: #ef4444;--danger-bg: #fef2f2;--success: #22c55e}*{box-sizing:border-box;margin:0;padding:0;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}body{background-color:var(--bg-main);color:var(--text-dark)}.app-container{display:flex;min-height:100vh}.sidebar{width:260px;background-color:var(--primary);color:#fff;position:fixed;top:0;bottom:0;left:0;padding:20px 0;display:flex;flex-direction:column}.brand{padding:0 20px 20px;border-bottom:1px solid #334155}.brand h2{font-size:1.25rem;letter-spacing:.5px;color:#f8fafc}.brand p{font-size:.75rem;color:#94a3b8;margin-top:4px}.menu-list{list-style:none;margin-top:20px}.menu-item{padding:12px 20px;cursor:pointer;font-size:.95rem;transition:all .2s;color:#cbd5e1}.menu-item:hover,.menu-item.active{background-color:var(--accent);color:#fff;font-weight:600}.main-content{margin-left:260px;flex:1;display:flex;flex-direction:column}.header{background-color:var(--bg-card);padding:20px 40px;border-bottom:1px solid var(--border)}.page-container{padding:40px}.metrics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px;margin-bottom:40px}.metric-card{background:var(--bg-card);padding:24px;border-radius:8px;border:1px solid var(--border);box-shadow:0 1px 3px #0000000d}.metric-card h4{color:var(--text-muted);font-size:.85rem;text-transform:uppercase;margin-bottom:8px}.metric-card p{font-size:2rem;font-weight:700}.card-view{background:var(--bg-card);padding:30px;border-radius:8px;border:1px solid var(--border);box-shadow:0 1px 3px #0000000d;margin-bottom:30px}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:6px;font-weight:600;font-size:.9rem}.form-control{width:100%;padding:10px;border:1px solid var(--border);border-radius:4px;font-size:.95rem}.btn-primary{background:var(--accent);color:#fff;padding:10px 20px;border:none;border-radius:4px;cursor:pointer;font-weight:600}.btn-primary:hover{background:var(--accent-hover)}.data-table{width:100%;border-collapse:collapse;margin-top:15px}.data-table th,.data-table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border)}.data-table th{background-color:#f1f5f9;font-weight:600}.row-alert{background-color:var(--danger-bg);color:var(--danger)}.alert-badge{background:var(--danger);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem}.submenu-list{margin:5px 0 10px;padding:0;list-style:none}.submenu-item{padding:10px 16px;cursor:pointer;font-size:.88rem;transition:all .2s ease-in-out;color:#cbd5e1;display:flex;align-items:center;gap:10px;margin:2px 12px;border-radius:6px}.submenu-item:hover{color:#f8fafc;background-color:#ffffff0a}.submenu-item.active{color:#fff;background-color:var(--accent)!important;font-weight:600;box-shadow:0 4px 6px -1px #2563eb33}.active-parent{background-color:#ffffff08;font-weight:600}@keyframes fadeIn{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}