/**
 * V3.0 上传组件样式
 * 图片/视频上传、输入框内预览
 */

/* ==================== 输入框内附件预览区域 ==================== */
.input-box .attachment-preview-container {
    display: none;
    flex-wrap: nowrap;
    gap: 8px;
    padding: 0;
    background: transparent;
    border-radius: 12px;
    margin: 0;
    max-height: 76px;
    height: auto;
    overflow-x: auto;
    overflow-y: hidden;
    position: relative;
    box-sizing: border-box;
    width: 100%;
}

/* 有内容时显示 */
.input-box .attachment-preview-container[style*="flex"],
.input-box .attachment-preview-container:not(:empty) {
    display: flex !important;
    padding: 8px 12px;
    margin-bottom: 8px;
}

.input-box .attachment-preview-container .input-attachment-thumb {
    position: relative;
    height: 60px;
    width: auto;
    border-radius: 6px;
    overflow: visible;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    /* 默认极细灰色边框 */
    padding: 1px;
    background: #d0d0d0;
}

/* 上传中：边框进度效果 */
.input-box .attachment-preview-container .input-attachment-thumb.uploading {
    padding: 2px;
    background: conic-gradient(
        from 0deg,
        #10a37f calc(var(--progress, 0) * 3.6deg),
        #d0d0d0 calc(var(--progress, 0) * 3.6deg)
    );
}

/* 上传完成：全绿边框 */
.input-box .attachment-preview-container .input-attachment-thumb.done {
    padding: 2px;
    background: #10a37f;
}

/* 错误状态：红色边框 */
.input-box .attachment-preview-container .input-attachment-thumb.error {
    padding: 2px;
    background: #ef4444;
}

/* 图片内层容器 - 遮挡中间，只显示边框 */
.input-box .attachment-preview-container .input-attachment-thumb .thumb-inner {
    position: relative;
    height: 100%;
    width: auto;
    background: var(--bg-page, #fff);
    border-radius: 4px;
    overflow: hidden;
}

.input-box .attachment-preview-container .input-attachment-thumb img {
    height: 60px;
    width: auto;
    max-width: none;
    object-fit: contain;
    display: block;
    border-radius: 4px;
}

.input-attachment-thumb .remove-attachment-btn {
    position: absolute;
    top: -8px;
    left: -8px;
    width: 20px;
    height: 20px;
    background: #ff4d4f;
    color: #fff;
    border: 2px solid #fff;
    border-radius: 50%;
    cursor: pointer;
    font-size: 11px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 2px rgba(0,0,0,0.2);
    transition: transform 0.2s;
    z-index: 10;
    padding: 0;
    margin: 0;
}

.input-attachment-thumb .remove-attachment-btn:hover {
    transform: scale(1.1);
}

/* 确保视频帧标签不会溢出 */
.input-attachment-thumb .video-frame-badge {
    position: absolute;
    bottom: 2px;
    right: 2px;
    background: rgba(0,0,0,0.7);
    color: #fff;
    font-size: 9px;
    padding: 1px 4px;
    border-radius: 3px;
    white-space: nowrap;
    z-index: 5;
}

/* 离线状态条 */
.offline-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(90deg, #faad14, #ffc53d);
    color: #fff;
    padding: 10px 16px;
    text-align: center;
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(250, 173, 20, 0.3);
}

.offline-bar .icon {
    font-size: 16px;
}

.offline-bar button {
    padding: 4px 12px;
    background: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    color: #faad14;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.2s;
}

.offline-bar button:hover {
    background: #fff7e6;
    transform: translateY(-1px);
}

/* 缓存标识 */
.cache-badge {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: 11px;
    color: #52c41a;
    margin-left: 6px;
    padding: 1px 6px;
    background: rgba(82, 196, 26, 0.1);
    border-radius: 10px;
}

.cache-badge::before {
    content: "⚡";
}

/* 输入区域V3改造 */
.chat-input-v3 {
    background: var(--bg-page);
    border-top: 1px solid var(--border);
}

/* 响应式适配 */
@media (max-width: 768px) {
    .input-box .attachment-preview-container {
        padding: 6px 10px;
        max-height: 66px !important;
    }
    
    .input-box .attachment-preview-container .input-attachment-thumb {
        width: 50px !important;
        height: 50px !important;
        min-width: 50px !important;
        min-height: 50px !important;
        max-width: 50px !important;
        max-height: 50px !important;
    }
    
    .input-box .attachment-preview-container .input-attachment-thumb img {
        width: 50px !important;
        height: 50px !important;
    }
    
    .offline-bar {
        font-size: 12px;
        padding: 8px 12px;
        flex-wrap: wrap;
        gap: 6px;
    }
}

/* 深色模式 */
[data-theme="dark"] .input-box .attachment-preview-container {
    background: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .input-box .attachment-preview-container .input-attachment-thumb {
    background: transparent;
}

[data-theme="dark"] .chat-input-v3 {
    background: var(--bg-page);
    border-color: var(--border);
}