#login-form, #register-form {
    max-width: 500px;
    margin: 3rem auto;
    background: white;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

#login-form h2, #register-form h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #333;
    font-size: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #333;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0,123,255,0.1);
}

button[type="submit"] {
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 1rem;
    font-size: 1.1rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: transform 0.3s ease;
}

button[type="submit"]:hover {
    transform: translateY(-2px);
}

.forgot-password {
    text-align: center;
    margin-top: 1rem;
}

.forgot-password a {
    color: #007bff;
    text-decoration: none;
}

.forgot-password a:hover {
    text-decoration: underline;
}

/* Tabs for register page */
.tabs {
    display: flex;
    margin-bottom: 2rem;
    border-bottom: 1px solid #ddd;
}

.tab-button {
    flex: 1;
    padding: 1rem;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    color: #666;
    transition: color 0.3s ease, border-bottom 0.3s ease;
    border-bottom: 2px solid transparent;
}

.tab-button.active {
    color: #007bff;
    border-bottom-color: #007bff;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-content h3 {
    margin-bottom: 1.5rem;
    color: #333;
    text-align: center;
}

@media (max-width: 768px) {
    #login-form, #register-form {
        margin: 2rem 1rem;
        padding: 2rem;
    }
    
    .tabs {
        flex-direction: column;
    }
    
    .tab-button {
        border-bottom: 1px solid #ddd;
        border-right: none;
    }
    
    .tab-button.active {
        border-bottom-color: #007bff;
    }
}