/* 登录页样式 */

.auth-section {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 0;
}

.auth-container {
    max-width: 450px;
    width: 100%;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 2.5rem;
}

.auth-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid #e5e7eb;
}

.tab-btn {
    flex: 1;
    padding: 1rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-light);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: -2px;
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

.auth-form h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    text-align: center;
}

.form-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 2rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-weight: 600;
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-light);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-label a {
    color: var(--primary-color);
    text-decoration: none;
}

.forgot-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.forgot-link:hover {
    text-decoration: underline;
}

.btn-full {
    width: 100%;
    margin-bottom: 1.5rem;
}

.auth-divider {
    text-align: center;
    margin: 1.5rem 0;
    position: relative;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: #e5e7eb;
}

.auth-divider span {
    background: var(--white);
    padding: 0 1rem;
    color: var(--text-light);
    position: relative;
}

.social-login {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.social-btn {
    width: 100%;
    padding: 0.75rem;
    background: var(--white);
    border: 2px solid #e5e7eb;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-dark);
}

.social-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.auth-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    text-align: center;
    display: none;
}

.auth-message.success {
    background: #d1fae5;
    color: #065f46;
    display: block;
}

.auth-message.error {
    background: #fee2e2;
    color: #991b1b;
    display: block;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .auth-container {
        padding: 1.5rem;
        margin: 0 1rem;
    }

    .auth-form h2 {
        font-size: 1.5rem;
    }
}