*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:#f5f5f5;color:#333}.navbar{background:#fff;border-bottom:1px solid #e0e0e0;padding:1rem 2rem;box-shadow:0 2px 4px #0000000d}.nav-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.nav-container h1{font-size:1.5rem;color:#333}.nav-links{list-style:none;display:flex;gap:2rem}.nav-links a{text-decoration:none;color:#666;font-weight:500;transition:color .2s}.nav-links a:hover{color:#007bff}.main-content{max-width:1200px;margin:2rem auto;padding:0 2rem}.card{background:#fff;border-radius:8px;padding:1.5rem;box-shadow:0 2px 8px #0000001a;margin-bottom:1.5rem}.card h2{margin-bottom:1rem;color:#333}.btn{padding:.75rem 1.5rem;border:none;border-radius:4px;font-size:1rem;cursor:pointer;transition:all .2s;font-weight:500}.btn-primary{background:#007bff;color:#fff}.btn-primary:hover{background:#0056b3}.btn-secondary{background:#6c757d;color:#fff}.btn-secondary:hover{background:#545b62}.btn-danger{background:#dc3545;color:#fff}.btn-danger:hover{background:#c82333}input,select,textarea{width:100%;padding:.75rem;border:1px solid #ddd;border-radius:4px;font-size:1rem;margin-bottom:1rem}label{display:block;margin-bottom:.5rem;font-weight:500;color:#555}.form-group{margin-bottom:1.5rem}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}.loading{text-align:center;padding:3rem;color:#666}.error{background:#f8d7da;color:#721c24;padding:1rem;border-radius:4px;margin-bottom:1rem}.success{background:#d4edda;color:#155724;padding:1rem;border-radius:4px;margin-bottom:1rem}