/**
 * PDF工具样式
 */

/* 功能选择 */
.pdf-modes {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.mode-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 16px;
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.mode-btn:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.mode-btn.active {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
}

.mode-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.mode-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 4px;
}

.mode-desc {
    font-size: 12px;
    color: var(--color-text-secondary);
}

/* 面板 */
.pdf-panel {
    background: var(--color-bg-secondary);
    border-radius: 16px;
    padding: 24px;
}

.pdf-panel.hidden {
    display: none;
}

/* 上传区域 */
.upload-area {
    border: 2px dashed var(--color-border);
    border-radius: 12px;
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.upload-text {
    font-size: 16px;
    color: var(--color-text);
    margin-bottom: 8px;
}

.upload-hint {
    font-size: 13px;
    color: var(--color-text-light);
}

/* 文件列表 */
.file-list {
    margin-top: 16px;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--color-bg);
    border-radius: 8px;
    margin-bottom: 8px;
    transition: all 0.15s;
}

.file-item:hover {
    background: var(--color-bg-tertiary);
}

.file-icon {
    font-size: 24px;
}

.file-info {
    flex: 1;
}

.file-name {
    font-size: 14px;
    color: var(--color-text);
    margin-bottom: 2px;
    word-break: break-all;
}

.file-meta {
    font-size: 12px;
    color: var(--color-text-secondary);
}

.file-actions {
    display: flex;
    gap: 8px;
}

.file-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--color-bg-secondary);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: all 0.15s;
}

.file-btn:hover {
    background: var(--color-primary);
    color: white;
}

.file-btn.delete:hover {
    background: #ef4444;
}

/* 操作栏 */
.action-bar {
    margin-top: 20px;
    display: flex;
    justify-content: center;
}

.action-bar .btn {
    min-width: 180px;
    justify-content: center;
}

/* 拆分设置 */
.split-settings,
.compress-settings {
    margin-top: 20px;
}

.split-info,
.compress-info {
    display: flex;
    gap: 24px;
    padding: 16px;
    background: var(--color-bg);
    border-radius: 8px;
    margin-bottom: 20px;
}

.split-info-item,
.compress-info-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.split-info-item .label,
.compress-info-item .label {
    font-size: 13px;
    color: var(--color-text-secondary);
}

.split-info-item .value,
.compress-info-item .value {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
}

.split-options {
    margin-bottom: 20px;
}

.split-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: var(--color-bg);
    border-radius: 8px;
    margin-bottom: 8px;
    cursor: pointer;
}

.split-option:hover {
    background: var(--color-bg-tertiary);
}

.split-option input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.split-option label {
    font-size: 14px;
    color: var(--color-text);
    cursor: pointer;
}

.split-range-input {
    margin-top: 12px;
    padding: 16px;
    background: var(--color-bg);
    border-radius: 8px;
}

.split-range-input input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 14px;
    margin-bottom: 8px;
}

.split-range-input input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.split-range-input .hint {
    font-size: 12px;
    color: var(--color-text-light);
}

/* 压缩设置 */
.quality-slider {
    padding: 16px;
    background: var(--color-bg);
    border-radius: 8px;
    margin-bottom: 20px;
}

.quality-slider .setting-label {
    margin-bottom: 12px;
}

.quality-slider .slider-row {
    margin-bottom: 8px;
}

.quality-hints {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--color-text-light);
}

/* 图片列表 */
.image-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.image-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: 8px;
    overflow: hidden;
    background: var(--color-bg);
    cursor: move;
}

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

.image-item .image-order {
    position: absolute;
    top: 8px;
    left: 8px;
    width: 24px;
    height: 24px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
}

.image-item .image-delete {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    opacity: 0;
    transition: all 0.15s;
}

.image-item:hover .image-delete {
    opacity: 1;
}

.image-item .image-delete:hover {
    background: #ef4444;
}

/* 图片设置 */
.image-settings {
    margin-top: 20px;
}

.setting-row {
    margin-bottom: 16px;
}

.setting-row .setting-label {
    display: block;
    margin-bottom: 8px;
}

.setting-row select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 14px;
    background: var(--color-bg);
    color: var(--color-text);
    cursor: pointer;
}

.setting-row select:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* 进度覆盖层 */
.progress-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.progress-overlay.hidden {
    display: none;
}

.progress-box {
    background: var(--color-bg-secondary);
    border-radius: 16px;
    padding: 32px 48px;
    text-align: center;
}

.progress-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

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

.progress-text {
    font-size: 15px;
    color: var(--color-text);
    margin-bottom: 16px;
}

.progress-bar {
    width: 200px;
    height: 6px;
    background: var(--color-border);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: 3px;
    transition: width 0.3s;
}

/* 响应式 */
@media (max-width: 800px) {
    .pdf-modes {
        grid-template-columns: repeat(2, 1fr);
    }

    .mode-icon {
        font-size: 28px;
    }

    .mode-desc {
        display: none;
    }
}