*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:#f5f5f5;color:#333}.container{max-width:1200px;margin:0 auto;padding:20px}button{padding:10px 20px;border:none;border-radius:4px;cursor:pointer;font-size:14px;transition:all .3s}button.primary{background:#007bff;color:#fff}button.primary:hover{background:#0056b3}button.success{background:#28a745;color:#fff}button.danger{background:#dc3545;color:#fff}input,select,textarea{padding:8px 12px;border:1px solid #ddd;border-radius:4px;font-size:14px;width:100%}table{width:100%;border-collapse:collapse;background:#fff;box-shadow:0 2px 4px #0000001a}th,td{padding:12px;text-align:left;border-bottom:1px solid #eee}th{background:#f8f9fa;font-weight:600}.card{background:#fff;padding:20px;border-radius:8px;box-shadow:0 2px 8px #0000001a;margin-bottom:20px}.form-group{margin-bottom:15px}.form-group label{display:block;margin-bottom:5px;font-weight:500}nav{background:#343a40;padding:15px 20px;margin-bottom:30px;display:flex;align-items:center;justify-content:space-between;max-width:100%}nav ul{list-style:none;display:flex;gap:20px;margin:0;padding:0}nav a{color:#fff;text-decoration:none;font-weight:500;transition:color .3s}nav a:hover{color:#007bff}.nav-dropdown{position:relative}.nav-dropdown>span:hover{color:#007bff}.nav-dropdown-menu{display:none;position:absolute;top:100%;left:0;background:#343a40;list-style:none;padding:8px 0;margin:0;min-width:170px;border-radius:0 0 6px 6px;box-shadow:0 4px 12px #0000004d;z-index:1000;flex-direction:column;gap:0}.nav-dropdown:hover .nav-dropdown-menu{display:flex}.nav-dropdown-menu li{padding:0}.nav-dropdown-menu a{display:block;padding:8px 16px;white-space:nowrap}.nav-dropdown-menu a:hover{background:#ffffff1a}.alert{padding:12px 20px;border-radius:4px;margin-bottom:20px}.alert-success{background:#d4edda;color:#155724;border:1px solid #c3e6cb}.alert-error{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}@media print{nav{display:none!important}.container{max-width:none!important;width:100%!important;padding:0!important;margin:0!important}body{background:#fff!important;width:210mm!important;max-width:210mm!important}}