/* === enhance.css - 图片增强页面样式 === */
/* 适配低饱和深蓝商务设计系统 */

.tool-content {
    padding: var(--space-xl) 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.tool-content .page-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.tool-content .page-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.tool-content .page-subtitle {
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* === 上传区域 === */
.upload-container {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.upload-zone {
    padding: 60px 40px;
    text-align: center;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all 0.3s;
    border: 3px dashed var(--color-border);
    margin: 20px;
    border-radius: var(--radius-md);
}

.upload-zone:hover {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    border-color: var(--color-accent);
}

.btn-upload {
    padding: 14px 32px;
    background: var(--color-accent);
    color: var(--text-on-accent);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-upload:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
}

.upload-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
}

.upload-hint {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-bottom: 12px;
}

.upload-rules {
    font-size: 12px;
    color: var(--color-text-tertiary);
}

/* === 编辑布局 === */
.editor-layout {
    display: none;
    gap: var(--space-md);
    align-items: stretch;
}

.editor-layout.active {
    display: flex;
}

/* 左侧预览区 */
.preview-section {
    flex: 0 0 65%;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    padding: 20px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.panel-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.panel-tab {
    padding: 6px 16px;
    background: var(--color-bg-tertiary);
    border-radius: 16px;
    font-size: 13px;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.panel-tab.active {
    background: var(--color-accent);
    color: var(--text-on-accent);
}

.preview-container {
    flex: 1;
    position: relative;
    background: var(--color-bg-primary);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

/* 图片等比缩放填满预览区 */
.preview-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.result-container {
    display: none;
}

/* === 右侧配置区 === */
.config-section {
    flex: 0 0 calc(35% - 24px);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: 16px;
    border: 1px solid var(--color-border);
}

.config-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text-primary);
    text-align: center;
    margin-bottom: 4px;
}

.slider-group {
    margin-bottom: 4px;
}

.input-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 6px;
}

/* 滑块 */
.range-input {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-hover));
    border-radius: 3px;
    outline: none;
}

.range-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--color-text-primary);
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s;
}

.range-input::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.range-input::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--color-text-primary);
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    cursor: pointer;
}

/* 进度条 */
.progress-area {
    display: none;
}

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

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-hover));
    width: 0%;
    transition: width 0.3s;
}

/* 主按钮 */
.btn-primary {
    width: 100%;
    padding: 14px;
    background: var(--color-accent);
    color: var(--text-on-accent);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

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

.btn-primary:disabled {
    background: var(--color-border);
    color: var(--color-text-secondary);
    cursor: not-allowed;
    transform: none;
}

/* 操作按钮组 */
.action-buttons {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

.btn-download {
    flex: 1;
    padding: 12px;
    background: var(--color-success);
    color: var(--text-on-accent);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-download:hover {
    background: var(--success, #059669);
    transform: translateY(-2px);
}

.btn-reset {
    flex: 1;
    padding: 12px;
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-reset:hover {
    background: var(--color-border);
}

#fileInput {
    display: none;
}

/* 响应式 */
@media (max-width: 1024px) {
    .editor-layout {
        flex-direction: column;
        height: auto;
    }
    .preview-section,
    .config-section {
        flex: 0 0 100%;
    }
    .preview-section {
        min-height: 360px;
    }
}

@media (max-width: 768px) {
    .tool-content { padding: 20px 10px; }
    .tool-content .page-title { font-size: 24px; }
    .upload-zone { padding: 40px 20px; }
    .action-buttons { flex-direction: column; }
}