:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#213547;background-color:#fff}*{box-sizing:border-box;margin:0;padding:0}body{margin:0;min-height:100vh}a{color:#667eea;text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;cursor:pointer}.container{max-width:1200px;margin:0 auto;padding:2rem}.card{background:#fff;border-radius:8px;box-shadow:0 2px 8px #0000001a;padding:1.5rem;margin-bottom:1.5rem}.btn{padding:.5rem 1rem;border:none;border-radius:4px;background:#667eea;color:#fff;font-size:1rem;cursor:pointer;transition:background .2s}.btn:hover{background:#5568d3}.btn-secondary{background:#718096}.btn-secondary:hover{background:#4a5568}.btn-danger{background:#f56565}.btn-danger:hover{background:#e53e3e}.btn-success{background:#48bb78}.btn-success:hover{background:#38a169}table{width:100%;border-collapse:collapse;margin-top:1rem}th,td{padding:.75rem;text-align:left;border-bottom:1px solid #e2e8f0}th{background:#f7fafc;font-weight:600}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500}.form-group input,.form-group select{width:100%;padding:.5rem;border:1px solid #cbd5e0;border-radius:4px;font-size:1rem}.form-group input:focus,.form-group select:focus{outline:none;border-color:#667eea}.error{color:#f56565;margin-top:.5rem}.loading{text-align:center;padding:2rem;color:#718096}