*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,-apple-system,sans-serif;background:#f5f7fa;color:#1a202c;min-height:100vh}a{color:inherit;text-decoration:none}.container{max-width:900px;margin:0 auto;padding:2rem 1rem}.card{background:#fff;border-radius:8px;box-shadow:0 1px 4px #0000001a;padding:1.5rem}.btn{display:inline-block;padding:.6rem 1.4rem;border-radius:6px;border:none;cursor:pointer;font-size:1rem;font-weight:600;transition:background .15s}.btn-primary{background:#3b82f6;color:#fff}.btn-primary:hover{background:#2563eb}.btn-primary:disabled{background:#93c5fd;cursor:not-allowed}.form-group{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1.25rem}.form-group label{font-weight:600;font-size:.9rem}.form-group input,.form-group select{padding:.5rem .75rem;border:1px solid #cbd5e0;border-radius:6px;font-size:1rem;width:100%}.form-group input:focus,.form-group select:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 3px #3b82f633}.error{color:#e53e3e;font-size:.875rem;margin-top:.25rem}.hint{color:#718096;font-size:.8rem}.star{color:#f59e0b}