:root{--primary:#0f172a;--primary-hover:#1e293b;--accent:#3b82f6;--bg-main:#f8fafc;--bg-sidebar:#fff;--card-bg:#fff;--text-main:#0f172a;--text-secondary:#64748b;--success:#10b981;--danger:#ef4444;--border:#e2e8f0}*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif}body{background-color:var(--bg-main);color:var(--text-main);min-height:100vh}.dashboard-layout{min-height:100vh;display:flex}.sidebar{background:var(--bg-sidebar);border-right:1px solid var(--border);flex-direction:column;width:280px;display:flex}.sidebar-header{border-bottom:1px solid var(--border);align-items:center;height:80px;padding:0 2rem;display:flex}.nav-item{color:var(--text-secondary);cursor:pointer;border-left:3px solid #0000;align-items:center;gap:1rem;padding:1rem 2rem;font-weight:500;text-decoration:none;transition:all .2s;display:flex}.nav-item:hover,.nav-item.active{color:var(--primary);background:#f1f5f9}.nav-item.active{border-left-color:var(--accent)}.main-content{flex:1;padding:2.5rem;overflow-y:auto}.header{margin-bottom:2rem}.header h1{color:var(--primary);font-size:2rem;font-weight:700}.metric-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem;margin-bottom:2.5rem;display:grid}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:1rem;padding:1.5rem;box-shadow:0 4px 6px -1px #0000000d}.auth-container{background:linear-gradient(135deg,#f8fafc 0%,#e2e8f0 100%);justify-content:center;align-items:center;min-height:100vh;display:flex}.auth-card{background:#fff;border-radius:1.5rem;width:100%;max-width:440px;padding:3rem;box-shadow:0 20px 25px -5px #0000001a}.input-field{border:1px solid var(--border);background:#f8fafc;border-radius:.75rem;width:100%;margin-top:.5rem;padding:1rem;transition:border-color .2s}.input-field:focus{border-color:var(--accent);outline:none}.btn-primary{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:.75rem;width:100%;padding:1rem;font-weight:600;transition:background .2s}.btn-primary:hover{background:var(--primary-hover)}.table-container{border:1px solid var(--border);background:#fff;border-radius:1rem;overflow-x:auto}table{border-collapse:collapse;text-align:left;width:100%}th{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border);background:#f8fafc;padding:1rem 1.5rem;font-size:.75rem;font-weight:600}td{border-bottom:1px solid var(--border);color:var(--text-main);padding:1.25rem 1.5rem}tr:last-child td{border-bottom:none}