*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6;color:#333;background-color:#f5f7fa}.container{max-width:1200px;margin:0 auto;padding:0 20px}.navbar{background-color:#2c3e50;color:#fff;padding:1rem 0;box-shadow:0 2px 4px #0000001a}.navbar .container{display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:700;color:#fff;text-decoration:none}.nav-links{display:flex;gap:1.5rem}.nav-links a{color:#fff;text-decoration:none;transition:opacity .3s}.nav-links a:hover{opacity:.8}.main-content{min-height:calc(100vh - 140px);padding:2rem 0}.footer{background-color:#2c3e50;color:#fff;text-align:center;padding:1rem 0;margin-top:2rem}.btn{display:inline-block;padding:.5rem 1rem;border:none;border-radius:4px;cursor:pointer;font-size:1rem;text-decoration:none;transition:background-color .3s}.btn-primary{background-color:#3498db;color:#fff}.btn-primary:hover{background-color:#2980b9}.btn-success{background-color:#2ecc71;color:#fff}.btn-success:hover{background-color:#27ae60}.btn-danger{background-color:#e74c3c;color:#fff}.btn-danger:hover{background-color:#c0392b}.card{background:#fff;border-radius:8px;padding:1.5rem;box-shadow:0 2px 4px #0000001a;margin-bottom:1.5rem}.card-title{font-size:1.5rem;margin-bottom:1rem;color:#2c3e50}.form-group{margin-bottom:1rem}.form-label{display:block;margin-bottom:.5rem;font-weight:500}.form-control{width:100%;padding:.5rem;border:1px solid #ddd;border-radius:4px;font-size:1rem}.form-control:focus{outline:none;border-color:#3498db}.table{width:100%;border-collapse:collapse;background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 2px 4px #0000001a}.table th,.table td{padding:1rem;text-align:left;border-bottom:1px solid #eee}.table th{background-color:#f8f9fa;font-weight:600}.table tr:last-child td{border-bottom:none}.badge{display:inline-block;padding:.25rem .75rem;border-radius:12px;font-size:.875rem;font-weight:500}.badge-success{background-color:#d4edda;color:#155724}.badge-warning{background-color:#fff3cd;color:#856404}.badge-danger{background-color:#f8d7da;color:#721c24}.badge-info{background-color:#d1ecf1;color:#0c5460}.grid{display:grid;gap:1.5rem}.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.grid-4{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}