*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background-color:#f5f5f5;color:#333;line-height:1.6}h1,h2,h3,h4,h5,h6{margin-bottom:1rem;color:#2c3e50}h1{font-size:2rem;border-bottom:3px solid #3498db;padding-bottom:.5rem}h2{font-size:1.5rem;color:#34495e}button{cursor:pointer;padding:.75rem 1.5rem;border:none;border-radius:4px;font-size:1rem;transition:all .2s}button:hover{opacity:.9;transform:translateY(-1px)}button:active{transform:translateY(0)}.btn-primary{background-color:#3498db;color:#fff}.btn-primary:hover{background-color:#2980b9}.btn-secondary{background-color:#95a5a6;color:#fff}.btn-secondary:hover{background-color:#7f8c8d}.btn-success{background-color:#27ae60;color:#fff}.btn-success:hover{background-color:#229954}.btn-danger{background-color:#e74c3c;color:#fff}.btn-danger:hover{background-color:#c0392b}input,select{padding:.75rem;border:1px solid #ddd;border-radius:4px;font-size:1rem;width:100%;margin-bottom:.5rem}input:focus,select:focus{outline:none;border-color:#3498db;box-shadow:0 0 0 2px #3498db33}.card{background:#fff;border-radius:8px;padding:1.5rem;box-shadow:0 2px 4px #0000001a;margin-bottom:1rem;overflow:hidden}.card .card{margin-bottom:0}.card>.grid{margin-bottom:0}.card>.grid:last-child{margin-bottom:0}.card.mb-2{position:relative;z-index:1}.card.mb-2+.card{position:relative;z-index:1}.card .grid.grid-2{row-gap:1rem;column-gap:1rem}.card>.grid>.card{height:100%;box-sizing:border-box}.card.mb-2>*:last-child{margin-bottom:0}.grid>*{min-width:0;min-height:0}.grid{display:grid;gap:1rem}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}@media (max-width: 768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}.container{max-width:1200px;margin:0 auto;padding:2rem}.navbar{background:#2c3e50;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center}.navbar h1{color:#fff;margin:0;border:none;font-size:1.5rem}.navbar nav{display:flex;gap:1rem}.navbar a{color:#fff;text-decoration:none;padding:.5rem 1rem;border-radius:4px;transition:background .2s}.navbar a:hover{background:#ffffff1a}.navbar a.active{background:#3498db}.error{color:#e74c3c;background:#fdf2f2;padding:.75rem;border-radius:4px;margin-bottom:1rem}.success{color:#27ae60;background:#f0fdf4;padding:.75rem;border-radius:4px;margin-bottom:1rem}.skill-beginner{color:#27ae60}.skill-intermediate{color:#f39c12}.skill-advanced{color:#e74c3c}.badge{display:inline-block;padding:.25rem .5rem;border-radius:4px;font-size:.875rem;font-weight:600}.badge-beginner{background:#d4edda;color:#155724}.badge-intermediate{background:#fff3cd;color:#856404}.badge-advanced{background:#f8d7da;color:#721c24}.table{width:100%;border-collapse:collapse;margin-bottom:1rem}.table th,.table td{padding:.75rem;text-align:left;border-bottom:1px solid #ddd}.table th{background:#f8f9fa;font-weight:600}.table tr:hover{background:#f8f9fa}.card .table{width:100%;table-layout:auto}.card .table th,.card .table td{word-wrap:break-word;max-width:200px}.card.mb-2{display:block;width:100%}.card>*{max-width:100%}.card input,.card select{box-sizing:border-box}.flex{display:flex}.flex-between{justify-content:space-between;align-items:center}.flex-center{justify-content:center;align-items:center}.gap-1{gap:.5rem}.gap-2{gap:1rem}.text-center{text-align:center}.text-right{text-align:right}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem;clear:both}.mb-3{margin-bottom:1.5rem;clear:both}