/* ============================================
   反馈页面专用样式
   与 main.css 变量体系一致
   ============================================ */

/* 页面背景 */
.feedback-page-bg {
    min-height: 60vh;
    padding: var(--space-2xl) 0;
}

/* 表单容器 - 玻璃卡片 */
.feedback-form-container {
    max-width: 680px;
    margin: 2.5rem auto;
    padding: var(--space-2xl);
    background: var(--bg-glass-strong);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-xl);
}

/* 标题 */
.feedback-form-title {
    text-align: center;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--space-xs);
}

.feedback-form-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0 0 var(--space-2xl);
}

/* 成功 / 错误消息 */
.success-message,
.error-message {
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-xl);
    animation: feedbackFadeIn 0.4s ease;
}

.success-message {
    background: rgba(34, 197, 94, 0.08);
    border: 1px solid rgba(34, 197, 94, 0.25);
    color: #16a34a;
}

[data-theme="dark"] .success-message {
    background: rgba(34, 197, 94, 0.12);
    color: #4ade80;
}

.success-message h3,
.error-message h3 {
    margin: 0 0 var(--space-xs);
    font-size: 1rem;
    font-weight: 600;
}

.success-message p,
.error-message p {
    margin: 0;
    font-size: 0.875rem;
    opacity: 0.85;
}

.error-message {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.25);
    color: #dc2626;
}

[data-theme="dark"] .error-message {
    background: rgba(239, 68, 68, 0.12);
    color: #f87171;
}

@keyframes feedbackFadeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 表单组 */
.form-group {
    margin-bottom: var(--space-xl);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.form-label .required {
    color: #ef4444;
    margin-left: 2px;
}

/* 输入框通用 */
.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    font-family: var(--font-sans);
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-lg);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    touch-action: manipulation;
    box-sizing: border-box;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-muted);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

[data-theme="dark"] .form-input:focus,
[data-theme="dark"] .form-textarea:focus,
[data-theme="dark"] .form-select:focus {
    box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.2);
}

/* 选择框 */
.form-select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}

.form-select option {
    background: var(--bg-primary);
    color: var(--text-primary);
}

/* 文本域 */
.form-textarea {
    min-height: 140px;
    resize: vertical;
    line-height: 1.6;
}

/* 字数统计 */
.char-count {
    text-align: right;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

.char-count.over {
    color: #ef4444;
}

/* 评分星星 */
.rating-container {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.rating-stars {
    display: flex;
    gap: 4px;
}

.star {
    font-size: 1.75rem;
    color: var(--border-color);
    cursor: pointer;
    transition: color var(--transition-fast), transform var(--transition-fast);
    touch-action: manipulation;
    line-height: 1;
    user-select: none;
}

.star:hover,
.star.active {
    color: #fbbf24;
    transform: scale(1.1);
}

.star.hover-preview {
    color: #fde68a;
}

.rating-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-left: var(--space-sm);
    min-width: 60px;
}

/* 截图上传区 */
.screenshot-upload {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast);
    touch-action: manipulation;
}

.screenshot-upload:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.03);
}

[data-theme="dark"] .screenshot-upload:hover {
    background: rgba(129, 140, 248, 0.05);
}

.screenshot-upload input[type="file"] {
    display: none;
}

.screenshot-upload p {
    font-size: 0.85rem;
    margin: var(--space-sm) 0 0;
}

/* 截图预览 */
.screenshot-preview {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.screenshot-preview-item {
    position: relative;
    width: 100px;
    height: 100px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
    animation: feedbackFadeIn 0.3s ease;
}

.screenshot-preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.screenshot-preview-item .remove-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    opacity: 0;
    transition: opacity var(--transition-fast);
    touch-action: manipulation;
}

.screenshot-preview-item:hover .remove-btn {
    opacity: 1;
}

/* 提交按钮 */
.submit-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    width: 100%;
    padding: 0.85rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-sans);
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
    touch-action: manipulation;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
}

.submit-btn:active {
    transform: translateY(0);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.submit-btn .spinner {
    width: 18px;
    height: 18px;
    border: 2.5px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 类型选择卡片化 */
.type-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--space-md);
}

.type-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-lg) var(--space-md);
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    touch-action: manipulation;
    text-align: center;
}

.type-card:hover {
    border-color: var(--primary-light);
    background: rgba(99, 102, 241, 0.04);
}

.type-card.selected {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.08);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.type-card .type-icon {
    font-size: 1.5rem;
    line-height: 1;
}

.type-card .type-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* 隐藏原始 select（用卡片替代） */
.feedback-type-select-wrap {
    display: none;
}

/* 响应式 */
@media (max-width: 640px) {
    .feedback-form-container {
        margin: 1rem auto;
        padding: var(--space-lg);
        border-radius: var(--radius-xl);
    }

    .feedback-form-title {
        font-size: 1.4rem;
    }

    .type-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .screenshot-upload {
        padding: var(--space-lg);
    }

    /* 查询结果截图缩略图 - 移动端更大更易点击 */
    .fb-query-screenshot-item {
        width: 64px !important;
        height: 64px !important;
    }

    /* 灯箱导航按钮移动端增大 */
    .fb-screenshot-lightbox button[aria-label="上一张"],
    .fb-screenshot-lightbox button[aria-label="下一张"] {
        width: 48px !important;
        height: 48px !important;
        font-size: 1.5rem !important;
    }

    .fb-screenshot-lightbox button[aria-label="关闭预览"] {
        width: 44px !important;
        height: 44px !important;
    }
}

/* ============================================
   查询结果截图缩略图
   ============================================ */
.fb-query-screenshots {
    margin-top: 8px;
}

.fb-query-screenshot-item {
    -webkit-tap-highlight-color: transparent;
}

.fb-query-screenshot-item:hover {
    transform: scale(1.08);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

/* ============================================
   截图灯箱预览
   ============================================ */
.fb-screenshot-lightbox img {
    -webkit-tap-highlight-color: transparent;
}

.fb-screenshot-lightbox button {
    -webkit-tap-highlight-color: transparent;
}

@media (prefers-reduced-motion: reduce) {
    .fb-screenshot-lightbox {
        transition: none !important;
    }
    .fb-query-screenshot-item {
        transition: none !important;
    }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
    .star,
    .type-card,
    .screenshot-upload,
    .submit-btn,
    .fb-screenshot-lightbox,
    .fb-query-screenshot-item {
        transition: none;
    }

    .screenshot-preview-item,
    .success-message,
    .error-message {
        animation: none;
    }
}