/* 左侧导航与中栏笔记列表：取值与桌面版 styles/sidebar.css 一致 */

/* 1. Sidebar */
.sidebar {
    width: 210px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    overflow: hidden;
    transition: width 0.18s ease;
}

.sidebar-action-wrap {
    padding: 10px 8px 4px 8px;
}
/* 「新建」两份的外包装：经典布局里只是一层不影响排版的包装——副本（新建待办）不排出来，
   本体照旧是整宽按钮 + 弹出菜单（现代布局里这层要撑住两份之间的间隔，见 styles/mode.css） */
.sidebar-new-split {
    display: block;
}
.sidebar-new-split .btn-sidebar-new-extra {
    display: none;
}
/* 「新建文档」那一枚图标只属于现代布局的悬停态（见 styles/mode.css），
   经典布局里按钮上始终只有原来的加号，这一枚不排出来 */
.btn-new-note-icon-doc {
    display: none;
}
.btn-sidebar-new {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 32px;
    border-radius: var(--radius-sm);
    background-color: var(--accent);
    color: var(--accent-fg);
    font-size: 13px;
    font-weight: 500;
    transition: opacity 0.15s, transform 0.1s;
    cursor: pointer;
}
/* 收起态下加号渐显：加号绝对定位在按钮左内侧，不参与展开态的排版 */
.btn-new-note-icon {
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0;
    transition: opacity 0.18s ease;
}
.btn-sidebar-new:hover {
    opacity: 0.92;
}
.btn-sidebar-new:active {
    transform: scale(0.98);
}

.nav-section {
    padding: 10px 8px 4px 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.nav-section-tags {
    flex: 1;
    min-height: 0;
}

.nav-section-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    padding: 4px 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s;
    font-size: 12.5px;
}
.nav-item:hover {
    background-color: var(--item-hover);
    color: var(--text-primary);
}
.nav-item.active {
    background-color: var(--item-active);
    color: var(--text-primary);
    font-weight: 500;
}
.nav-item-left {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}
.nav-item-left span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.nav-badge {
    font-size: 11px;
    padding: 1px 6px;
    border-radius: var(--radius-pill);
    background-color: var(--item-hover);
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.folder-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    max-height: 180px;
    overflow-y: auto;
}
.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 4px 8px;
    overflow-y: auto;
    max-height: 150px;
}
.tag-pill {
    display: inline-flex;
    align-items: center;
    padding: 2px 7px;
    border-radius: var(--radius-pill);
    background-color: var(--item-hover);
    color: var(--text-secondary);
    font-size: 11px;
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s;
}
.tag-pill:hover {
    background-color: var(--item-active);
    color: var(--text-primary);
}
.tag-pill.active {
    background-color: var(--accent-bg);
    color: var(--accent);
    font-weight: 500;
}

.sidebar-bottom {
    margin-top: auto;
    padding: 8px 12px;
    border-top: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    /* 图标组整体靠右，与左端的概览文字分开（真正的推手是 #sidebar-stat 的 margin-right: auto） */
    justify-content: flex-end;
    gap: 6px;
    font-size: 11px;
    color: var(--text-muted);
}
.btn-clear-trash {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    color: var(--danger);
    transition: background-color 0.15s, color 0.15s, width 0.18s ease, height 0.18s ease, opacity 0.14s ease;
}
.btn-clear-trash:hover {
    background-color: var(--item-hover);
    color: var(--danger);
}
.btn-sidebar-bottom {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: background-color 0.15s, color 0.15s, width 0.18s ease, height 0.18s ease, opacity 0.14s ease;
}
.btn-sidebar-bottom:hover {
    background-color: var(--item-hover);
    color: var(--text-primary);
}
/* 底栏概览文字独占左端：margin-right: auto 吸收全部剩余空间，右侧图标组整体贴到右缘，
   清空废纸篓因此紧挨设置按钮左侧（它按 DOM 顺序本就排在设置之前）。
   自动外边距挂在概览文字而非图标上：概览文字常驻，图标会随视图隐藏，自动外边距不会随之失效。
   过长时省略文字，不换行也不把按钮挤出侧边栏 */
#sidebar-stat {
    min-width: 0;
    margin-right: auto;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

/* 收起态：只留一条窄条与图标入口 */
html.sidebar-collapsed .sidebar {
    width: 48px;
}
html.sidebar-collapsed .sidebar .nav-text,
html.sidebar-collapsed .sidebar .nav-badge,
html.sidebar-collapsed .sidebar .nav-section-folders,
html.sidebar-collapsed .sidebar .nav-section-tags {
    display: none;
}
html.sidebar-collapsed .sidebar .nav-item {
    padding: 7px 8px;
}
html.sidebar-collapsed .sidebar .nav-item-left {
    gap: 0;
}
html.sidebar-collapsed .sidebar .btn-new-note-icon {
    opacity: 1;
}
html.sidebar-collapsed .sidebar .sidebar-bottom {
    flex-direction: column;
    align-items: flex-end;
    justify-content: center;
    gap: 4px;
    border-top: none;
}
html.sidebar-collapsed .sidebar .btn-clear-trash {
    width: 24px;
    height: 24px;
}
html.sidebar-collapsed .sidebar .btn-sidebar-bottom {
    width: 24px;
    height: 24px;
}

/* 收起 / 展开时文字与底栏图标的渐隐渐显 */
.nav-text,
.nav-badge,
.nav-section-folders,
.nav-section-tags,
/* 现代布局的应用名同样属于侧边栏文字，展开时与它们一起淡入（见 styles/mode.css） */
.sidebar-brand {
    transition: opacity 0.16s ease;
}
.sidebar.text-fading .nav-text,
.sidebar.text-fading .nav-badge,
.sidebar.text-fading .nav-section-folders,
.sidebar.text-fading .nav-section-tags,
.sidebar.text-fading .sidebar-brand {
    opacity: 0;
}
.sidebar.icons-fading .btn-clear-trash,
.sidebar.icons-fading .btn-sidebar-bottom {
    opacity: 0;
}

/* 2. Notes List Panel */
.notes-panel {
    width: 270px;
    background-color: var(--bg-list);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.notes-panel-header {
    padding: 10px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
    background-color: var(--item-hover);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0 8px;
    height: 28px;
}
.search-box input {
    flex: 1;
    padding: 0 6px;
    font-size: 12px;
    color: var(--text-primary);
}
.search-box input::placeholder {
    color: var(--text-muted);
}
.search-box .btn-clear {
    cursor: pointer;
    color: var(--text-muted);
}
.search-box .btn-clear:hover {
    color: var(--text-primary);
}

.notes-panel-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-muted);
    padding: 0 2px;
}
.notes-panel-info select,
.notes-panel-info .dropdown-trigger {
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    font-size: 11px;
}
.notes-panel-info select option {
    background: var(--bg-list);
    color: var(--text-primary);
}

.notes-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.list-empty {
    text-align: center;
    padding: 32px 10px;
    color: var(--text-muted);
    font-size: 12px;
    line-height: 1.8;
}

.note-card {
    padding: 10px 12px;
    background-color: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color 0.15s, border-color 0.15s;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.note-card:hover {
    background-color: var(--item-hover);
    border-color: var(--border-light);
}
.note-card.active {
    background-color: var(--item-active);
    border-color: var(--border-color);
}

.note-card-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.note-card-title span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.note-card-preview {
    font-size: 11.5px;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.4;
}
.note-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 10.5px;
    color: var(--text-muted);
    margin-top: 2px;
}
.note-card-folder {
    padding: 1px 4px;
    border-radius: var(--radius-xs);
    background: var(--item-hover);
}

/* 待办卡片：左侧勾选框 + 右侧标题 / 摘要 / 时间 */
.todo-card {
    flex-direction: row;
    align-items: flex-start;
    gap: 8px;
}
.todo-check {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    margin-top: 1px;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: color 0.15s, background-color 0.15s;
}
.todo-check:hover {
    background-color: var(--item-hover);
    color: var(--accent);
}
.todo-card.done .todo-check {
    color: var(--text-muted);
}
.todo-card.active .todo-check {
    color: var(--text-secondary);
}
.todo-card-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.todo-card.done .note-card-title span {
    text-decoration: line-through;
    color: var(--text-muted);
}
.todo-card.done .note-card-preview {
    color: var(--text-muted);
    opacity: 0.85;
}