/*登录、注册、忘记密码通用样式*/
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    background: linear-gradient(135deg, var(--color-bg-gradient-start) 0%, var(--color-bg-gradient-end) 100%);
}

.auth-page .form-error {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-md);
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--color-danger);
    border-radius: var(--radius-8);
    color: var(--color-danger);
    font-size: var(--font-size-sm);
    line-height: 1.4;
}

.auth-page .form-error i {
    font-size: var(--font-size-md);
}

.auth-container {
    width: 100%;
    max-width: 440px;
}

.auth-card {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-24);
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-brand-primary), var(--color-brand-accent));
    border-radius: var(--radius-16);
    margin: 0 auto var(--spacing-md);
}

.auth-logo i {
    font-size: var(--font-size-2xl);
    color: white;
}

.auth-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.auth-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.auth-form {
    margin-bottom: var(--spacing-lg);
}

.auth-footer {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.auth-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
    font-size: 13px;
}

.auth-links a {
    color: var(--color-text-tertiary);
    transition: color var(--transition-fast);
}

.auth-links a:hover {
    color: var(--color-brand-primary);
}

.password-input-wrapper {
    position: relative;
}

/* 密码输入框为眼睛按钮预留右侧空间 */
.password-input-wrapper .form-input {
    padding-right: calc(var(--spacing-lg) * 2);
}

.password-toggle-btn {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-secondary);
    padding: var(--spacing-xs);
    font-size: var(--font-size-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
}

.password-toggle-btn:hover {
    color: var(--color-brand-primary);
}

.password-toggle-btn:active {
    outline: none;
    transform: translateY(-50%) scale(0.95);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    background: var(--color-bg-tertiary);
    border: 1.5px solid transparent;
    border-radius: var(--radius-16);
    transition: background var(--transition-base), border-color var(--transition-base);
    outline: none;
}

.form-input::placeholder {
    color: var(--color-text-tertiary);
}

.form-input:hover {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-hover);
}

.form-input:focus {
    background: var(--color-bg-secondary);
    border-color: var(--color-brand-primary);
}

.form-input.is-invalid {
    border-color: var(--color-danger);
    background: var(--color-bg-secondary);
}

.form-input.is-invalid:focus {
    border-color: var(--color-danger);
}

.form-input.error {
    border-color: var(--color-danger);
}

.form-input.success {
    border-color: var(--color-success);
}

.form-input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: var(--color-bg-tertiary);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    white-space: nowrap;
}

.form-error {
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-danger);
}

.email-verification-group {
    display: flex;
    gap: var(--spacing-sm);
}

.email-verification-group .form-input {
    flex: 1;
}

.verification-code-input {
    text-align: center;
    font-size: var(--font-size-lg);
    font-family: monospace;
}

/* 登录表单自定义复选框：覆盖原生样式，与输入框圆角风格统一 */
.auth-form__checkbox {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    margin: 0;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-4);
    background: var(--color-bg-tertiary);
    cursor: pointer;
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.auth-form__checkbox:hover {
    border-color: var(--color-brand-primary);
}

.auth-form__checkbox:checked {
    border-color: var(--color-brand-primary);
    background-color: var(--color-brand-primary);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 12px;
}

.auth-form__checkbox:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px var(--color-brand-primary-light);
}

.status-message {
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    min-height: 20px;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.status-message.success {
    color: var(--color-success);
}

.status-message.error {
    color: var(--color-danger);
}

.status-message.info {
    color: var(--color-text-secondary);
}

.success-message {
    background: var(--color-success);
    color: white;
}

/* 注册、忘记密码页面样式 */
.send-code-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: var(--spacing-md) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    white-space: nowrap;
}

.send-code-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.verification-code-group.hidden {
    display: none;
}

/* 验证码输入行：输入框与按钮水平并排（各屏幕宽度恒定） */
.code-input-row {
    display: flex;
    gap: var(--spacing-sm);
}

.code-input-row .form-input {
    flex: 1;
    min-width: 0;
}

@media (max-width: 768px) {            
    .auth-card {
        padding: var(--spacing-xl);
    }
    
    .auth-title {
        font-size: var(--font-size-xl);
    }
    
    .auth-subtitle {
        font-size: var(--font-size-xs);
    }
    
    .form-input {
        padding: var(--spacing-md);
        font-size: 16px;
    }    
}

@media (max-width: 480px) {
    .auth-title {
        font-size: var(--font-size-lg);
    }
    
    .auth-footer {
        font-size: var(--font-size-xs);
    }

    .form-input {
        padding: var(--spacing-sm) var(--spacing-md);
    }
}