* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 450px;
}

.register-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    padding: 40px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.register-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.register-card h1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.subtitle {
    color: #666;
    margin-bottom: 30px;
    font-size: 14px;
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-size: 14px;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 14px;
    border: 1px solid #ddd;
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: white;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
    transform: translateY(-1px);
}

.code-input-container {
    display: flex;
    gap: 10px;
}

.code-input-container input {
    flex: 1;
}

.btn-secondary {
    padding: 14px 20px;
    background: #f0f0f0;
    border: 1px solid #ddd;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    color: #333;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn-secondary:hover {
    background: #e0e0e0;
    border-color: #ccc;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.btn-secondary:disabled {
    background: #f5f5f5;
    color: #999;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.form-agree {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 30px;
    text-align: left;
    font-size: 14px;
    color: #666;
}

.form-agree input {
    margin-top: 2px;
}

.form-agree a {
    color: #667eea;
    text-decoration: none;
}

.form-agree a:hover {
    text-decoration: underline;
}

.btn-primary {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.login-link {
    margin-top: 20px;
    font-size: 14px;
    color: #666;
}

.login-link a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.login-link a:hover {
    color: #764ba2;
    text-decoration: underline;
}

.error-message {
    color: #ff4757;
    font-size: 12px;
    margin-top: 5px;
    display: none;
}

.success-message {
    color: #2ed573;
    font-size: 14px;
    margin-top: 10px;
    display: none;
}

.loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 480px) {
    .register-card {
        padding: 30px 20px;
    }
    
    .register-card h1 {
        font-size: 24px;
    }
    
    .code-input-container {
        flex-direction: column;
    }
    
    .code-input-container button {
        width: 100%;
    }
}