/* ==================== 主题变量定义 ==================== */
:root {
    --bg-primary: #f8fafc;
    --bg-secondary: #f1f5f9;
    --bg-card: rgba(255, 255, 255, 0.7);
    --bg-text-card:#fffde7;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: rgba(226, 232, 240, 0.8);
    --shadow-color: rgba(0, 0, 0, 0.1);
    --glass-blur: blur(12px);
    --accent-color: #6366f1;
    --accent-light: rgba(99, 102, 241, 0.1);
}

[data-theme="dark"] {
    --bg-primary: #2d3035;
    --bg-secondary: #1e293b;
    --bg-card: rgba(30, 41, 59, 0.7);
    --bg-text-card: rgba(30, 41, 59);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: rgba(51, 65, 85, 0.8);
    --shadow-color: rgba(0, 0, 0, 0.3);
    --accent-color: #818cf8;
    --accent-light: rgba(129, 140, 248, 0.15);
}

[data-theme="eye-care"] {
    --bg-primary: #f5f0e8;
    --bg-secondary: #ebe5d8;
    --bg-card: rgba(255, 252, 245, 0.7);
    --text-primary: #3d3528;
    --text-secondary: #7d7060;
    --border-color: rgba(210, 200, 180, 0.8);
    --shadow-color: rgba(61, 53, 40, 0.1);
    --accent-color: #8b7355;
    --accent-light: rgba(139, 115, 85, 0.1);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

/* ==================== 通用样式 ==================== */
.glass {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 32px var(--shadow-color);
}

.bg-decoration {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    z-index: -1;
    pointer-events: none;
}

/* ==================== 通用Tab样式 (任务和备忘录共用) ==================== */
.tabs-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tab-item {
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    user-select: none;
}

.tab-item.active {
    background: var(--accent-color);
    color: white;
}

.tab-item:not(.active):hover {
    background: var(--accent-light);
}

.tab-item.dragging {
    opacity: 0.4;
}

.tab-item .tab-delete {
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    cursor: pointer;
}

.tab-item.active .tab-delete {
    display: flex;
}

.tab-item .tab-delete:hover {
    background: rgba(255, 255, 255, 0.4);
}

.tab-item .tab-name {
    cursor: text;
    padding: 0.1rem 0.2rem;
    border-radius: 0.2rem;
}

.tab-item .tab-name:hover {
    background: rgba(255, 255, 255, 0.1);
}

.tab-item .tab-name-edit {
    background: white;
    color: black;
    border: 1px solid var(--accent-color);
    outline: none;
    padding: 0.1rem 0.2rem;
    border-radius: 0.2rem;
    font-size: inherit;
    font-family: inherit;
    font-weight: inherit;
    width: 80px;
}

.add-tab-btn {
    padding: 0.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-secondary);
    border: 1px dashed var(--border-color);
}

.add-tab-btn:hover {
    background: var(--accent-light);
    color: var(--accent-color);
    border-color: var(--accent-color);
}

/* ==================== 任务看板样式 ==================== */
#taskDescription{
    max-height: 40vh;
}
.task-card {
    cursor: grab;
    transition: all 0.3s ease;
}

.task-card:active {
    cursor: grabbing;
}

.task-card.dragging {
    opacity: 0.5;
    transform: rotate(2deg);
}
/* 在其下方添加这段代码 */
.task-card .task-description {
    max-height: 60px;
    overflow: hidden;
    position: relative;
    white-space: pre-wrap; /* 保留换行 */
    word-break: break-word;
}

/* 模糊渐变效果 */
.task-card .task-description::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 20px;
    background: linear-gradient(to bottom, transparent, var(--bg-card));
    pointer-events: none;
}

/* 只有当内容超出时才显示模糊效果 */
.task-card .task-description:not(:has(+ *))::after {
    display: none;
}
.task-column {
    min-height: 200px;
    transition: background-color 0.3s ease;
}

.task-column.drag-over {
    background: var(--accent-light);
    border-color: var(--accent-color);
}

/* ==================== 文件夹树样式 ==================== */
.folder-tree {
    max-height: 400px;
    overflow-y: auto;
    padding: 0.5rem;
}

.folder-item {
    padding: 0.5rem;
    cursor: pointer;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    user-select: none;
}

.folder-item:hover {
    background: var(--accent-light);
}

.folder-item.active {
    background: var(--accent-light);
    color: var(--accent-color);
}
/* 在其下方添加这段代码 */
.folder-item .folder-name {
    cursor: text;
    padding: 0.1rem 0.2rem;
    border-radius: 0.2rem;
    flex-grow: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.folder-item .folder-name:hover {
    background: rgba(255, 255, 255, 0.1);
}

.folder-name-edit {
    background: white;
    color: black;
    border: 1px solid var(--accent-color);
    outline: none;
    padding: 0.1rem 0.2rem;
    border-radius: 0.2rem;
    font-size: inherit;
    font-family: inherit;
    flex-grow: 1;
    min-width: 50px;
}
/* 在其下方添加这段代码 */
.folder-item.dragging {
    opacity: 0.4;
}

.folder-item.drop-before {
    border-top: 2px solid var(--accent-color);
}

.folder-item.drop-after {
    border-bottom: 2px solid var(--accent-color);
}

.folder-item.drop-inside {
    background: var(--accent-light);
    box-shadow: inset 0 0 0 2px var(--accent-color);
}
.folder-children {
    overflow: hidden;
    transition: max-height 0.3s ease-in-out, opacity 0.3s ease-in-out;
    max-height: 1000px;
    opacity: 1;
}

.folder-children.collapsed {
    max-height: 0;
    opacity: 0;
}

.folder-toggle-icon {
    transition: transform 0.3s ease;
    width: 1rem;
    text-align: center;
}

.folder-toggle-icon.collapsed {
    transform: rotate(-90deg);
}

/* ==================== 链接标签 ==================== */
.tool-link {
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.tool-link.dragging {
    opacity: 0.5;
}

/* ==================== 临时备忘录样式 ==================== */

.memo-board {
    min-height: 600px;
    position: relative;
    /*background: var(--bg-secondary);*/
    border-radius: 1rem;
    padding: 1rem;
    overflow: auto;
}

.memo-item {
    position: absolute;
    background: var(--bg-text-card);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem;
    box-shadow: 0 2px 8px var(--shadow-color);
    cursor: move;
    user-select: none;
    width: 200px;
    height: auto;
    min-width: 150px;
    min-height: 100px;
    max-width: 500px;
    max-height: 600px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: box-shadow 0.2s ease;
}

.memo-item:hover {
    box-shadow: 0 4px 12px var(--shadow-color);
}

.memo-item.text {
    background: var(--bg-text-card);
}


.memo-item.image {
    padding: 0.5rem;
    cursor: pointer;
}

.memo-content-wrapper {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding-right: 0.25rem;
}

/* 富文本编辑器样式 */
.memo-content {
    cursor: default;
    user-select: text; /* 允许选择文本 */
    outline: none;
    border-radius: 0.25rem;
    padding: 0.25rem;
    transition: background-color 0.2s ease;
    word-break: break-all;
    min-height: 60px;
    white-space: pre-wrap; /* 新增：保留换行和空格 */
}

.memo-content[contenteditable="true"] {
    cursor: text;
    background-color: rgba(99, 102, 241, 0.05);
}

/* 悬浮富文本工具栏样式 */
.floating-toolbar {
    position: fixed;
    display: none;
    gap: 0.25rem;
    padding: 0.5rem;
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-shadow: 0 4px 12px var(--shadow-color);
    z-index: 1000;
    flex-wrap: wrap;
    max-width: 300px;
}

.floating-toolbar.active {
    display: flex;
}

.floating-toolbar button {
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 0.25rem;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.floating-toolbar button:hover {
    background: var(--accent-color);
    color: white;
}

.floating-toolbar button.active {
    background: var(--accent-color);
    color: white;
}

.floating-toolbar select {
    height: 1.75rem;
    border-radius: 0.25rem;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 0.75rem;
    padding: 0 0.25rem;
    cursor: pointer;
}

.floating-toolbar input[type="color"] {
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 0.25rem;
    border: 1px solid var(--border-color);
    cursor: pointer;
    padding: 0;
}

.floating-toolbar .toolbar-divider {
    width: 1px;
    background: var(--border-color);
    margin: 0 0.25rem;
}

.memo-item img {
    max-width: 100%;
    border-radius: 0.25rem;
    display: block;
    margin: 0 auto;
    cursor: pointer;
    -webkit-user-drag: none; /* 禁止浏览器默认的拖拽幽灵图 */
    user-drag: none;
}

.memo-item .delete-btn {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    width: 1.25rem;
    height: 1.25rem;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 10;
}

.memo-item:hover .delete-btn {
    opacity: 1;
}

.memo-item .delete-btn:hover {
    background: rgba(239, 68, 68, 0.8);
    color: white;
}

.resize-handle {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 16px;
    height: 16px;
    cursor: nwse-resize;
    background: linear-gradient(135deg, transparent 50%, rgba(0, 0, 0, 0.2) 50%);
    z-index: 10;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.memo-item:hover .resize-handle {
    opacity: 1;
}

/* ==================== 模态框样式 ==================== */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 50;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal.active {
    display: flex;
}

#imagePreviewModal .modal-content {
    background: transparent;
    box-shadow: none;
    border: none;
    max-width: 90vw;
    max-height: 90vh;
}

#imagePreviewModal img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
}

/* ==================== 滚动条样式 ==================== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ==================== 动画 ==================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}