*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.signup-container{background:#f9f9f9;min-height:100vh;display:flex}.form-section{flex:1;justify-content:center;align-items:center;padding:2rem;display:flex;overflow-y:auto}.form-card{background:#fff;border-radius:8px;width:100%;max-width:500px;padding:2rem;box-shadow:0 2px 8px #0000001a}.progress-bar{background:#eee;border-radius:4px;width:100%;height:4px;margin-bottom:2rem;overflow:hidden}.progress-fill{background:#4caf50;height:100%;transition:width .3s}.form-title{color:#1a1a1a;margin-bottom:.5rem;font-size:24px;font-weight:700}.form-subtitle{color:#666;margin-bottom:1.5rem;font-size:14px}.form-group{margin-bottom:1.2rem}.form-label{color:#333;margin-bottom:.4rem;font-size:13px;font-weight:500;display:block}.form-input,.form-select{border:1px solid #ddd;border-radius:5px;width:100%;padding:10px 12px;font-family:inherit;font-size:14px;transition:border-color .3s}.form-input:focus,.form-select:focus{border-color:#4caf50;outline:none;box-shadow:0 0 0 2px #4caf501a}.form-checkbox-label{cursor:pointer;align-items:center;font-size:13px;display:flex}.form-checkbox{cursor:pointer;width:16px;height:16px;margin-right:8px}.three-columns{grid-template-columns:1fr 1fr 1fr;gap:.8rem;display:grid}.modules-grid{grid-template-columns:1fr 1fr;gap:.8rem;margin-top:1rem;display:grid}.module-checkbox{cursor:pointer;border:1px solid #eee;border-radius:4px;align-items:center;padding:8px;font-size:13px;transition:background-color .2s;display:flex}.module-checkbox:hover{background-color:#f5f5f5}.module-checkbox input{cursor:pointer;margin-right:8px}.button-group{gap:.8rem;margin-top:2rem;display:flex}.submit-button,.back-button{cursor:pointer;border:none;border-radius:5px;flex:1;padding:12px;font-size:14px;font-weight:700;transition:background-color .3s}.submit-button{color:#fff;background-color:#4caf50}.submit-button:hover:not(:disabled){background-color:#45a049}.submit-button:disabled{cursor:not-allowed;background-color:#ccc}.back-button{color:#333;background-color:#e0e0e0}.back-button:hover:not(:disabled){background-color:#d0d0d0}.back-button:disabled{opacity:.5;cursor:not-allowed}.error-alert{color:#c00;background-color:#fee;border:1px solid #f88;border-radius:6px;margin-bottom:1rem;padding:12px;font-size:13px}.success-alert{color:#0a0;background-color:#efe;border:1px solid #8f8;border-radius:6px;margin-bottom:1rem;padding:12px;font-size:13px}.otp-input{letter-spacing:.5rem;text-align:center;font-size:2rem}@media (max-width:640px){.form-card{padding:1.5rem}.three-columns{grid-template-columns:1fr;gap:1rem}.button-group{flex-direction:column}}