*{box-sizing:border-box;margin:0;padding:0}body{font-family:Roboto,Helvetica Neue,sans-serif;font-size:16px;line-height:1.5;color:#333;background-color:#f5f5f5;min-height:100vh}h1,h2,h3,h4,h5,h6{font-weight:500;line-height:1.2}a{color:#3f51b5;text-decoration:none}a:hover{text-decoration:underline}.text-center{text-align:center}.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}.mb-3{margin-bottom:1.5rem}input,textarea,select{font-family:inherit;font-size:inherit}button{cursor:pointer;font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.card{background-color:#fff;border-radius:8px;box-shadow:0 2px 8px #0000001a;overflow:hidden}.btn{display:inline-block;padding:.6rem 1.2rem;border-radius:4px;font-weight:500;text-align:center;transition:background-color .2s,color .2s;border:none;cursor:pointer}.btn-primary{background-color:#3f51b5;color:#fff}.btn-primary:hover{background-color:#303f9f}.btn-secondary{background-color:#f5f5f5;color:#333}.btn-secondary:hover{background-color:#e0e0e0}.btn-danger{background-color:#f44336;color:#fff}.btn-danger:hover{background-color:#d32f2f}.btn-success{background-color:#4caf50;color:#fff}.btn-success:hover{background-color:#388e3c}.spinner{display:inline-block;width:2rem;height:2rem;border:.25rem solid rgba(0,0,0,.1);border-radius:50%;border-top-color:#3f51b5;animation:spin 1s ease-in-out infinite}@keyframes spin{to{transform:rotate(360deg)}}