/* ==================== 认证页面样式 ==================== */
.auth-container {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: var(--bg-secondary);
}

.auth-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 2rem;
    background: var(--bg-primary);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: var(--text-secondary);
}

.auth-form {
    max-width: 400px;
    margin: 0 auto;
    width: 100%;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

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

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

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

.link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

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

.btn-block {
    width: 100%;
}

.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-error {
    background: var(--bg-secondary);
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
}

.alert-success {
    background: var(--bg-secondary);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

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

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-color);
}

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

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

.btn-social {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-social:hover {
    background: var(--bg-secondary);
}

.btn-github:hover {
    background: #24292e;
    color: white;
    border-color: #24292e;
}

.btn-google:hover {
    background: #4285f4;
    color: white;
    border-color: #4285f4;
}

.auth-footer {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--text-secondary);
}

.auth-showcase {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.showcase-content {
    max-width: 500px;
}

.showcase-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.showcase-content p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 0.75rem 0;
    font-size: 1.125rem;
    opacity: 0.9;
}

@media (max-width: 768px) {
    .auth-container {
        grid-template-columns: 1fr;
    }

    .auth-showcase {
        display: none;
    }

    .auth-card {
        min-height: 100vh;
    }
}

/* 验证消息 */
.validation-message {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* ==================== 密码显示切换按钮 ==================== */
.auth-form .input-group {
    display: flex;
    width: 100%;
}

.auth-form .input-group .form-control {
    width: auto;
    flex: 1 1 auto;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.auth-form .input-group .password-toggle {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    border-left: none;
    min-width: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-form .input-group .password-toggle:hover {
    background-color: var(--bg-secondary, #f8f9fa);
}