/* ============== Todo 工具：Linear/Notion 极简风 ============== */

:root {
    --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --t-fast: 120ms;
    --t-base: 200ms;
    --t-slow: 320ms;
    --r-sm: 6px;
    --r-md: 10px;
    --r-lg: 14px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 18px 40px rgba(0, 0, 0, 0.12);
    --font: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", "PingFang SC", "Noto Sans SC", sans-serif;
    --font-mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

/* 重要：让 [hidden] 属性始终生效，覆盖后续组件的 display: flex/grid */
[hidden] { display: none !important; }

body {
    font-family: var(--font);
    font-size: 14px;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    overflow: hidden;
    transition: background var(--t-slow) var(--ease), color var(--t-slow) var(--ease);
}

/* ==================== 主题变量 ==================== */

body[data-theme="light"] {
    --bg: #ffffff;
    --bg-soft: #fbfbfa;
    --surface: #f7f7f5;
    --surface-hover: #f1f1ef;
    --border: rgba(15, 23, 42, 0.08);
    --border-strong: rgba(15, 23, 42, 0.16);
    --text: #1f1f1f;
    --text-soft: #4a4a4a;
    --muted: #8a8a8a;
    --accent: #2383e2;
    --accent-soft: rgba(35, 131, 226, 0.08);
    --hl-fg: #1b6ec9;
    --hl-bg: rgba(35, 131, 226, 0.17);
    --auto-fg: #b45309;
    --auto-bg: rgba(245, 158, 11, 0.12);
    --p1: #5b8def;
    --p2: #f59e0b;
    --p3: #e74c3c;
    --backdrop: rgba(15, 23, 42, 0.32);
    --check-bg: #ffffff;
}

body[data-theme="dark"] {
    --bg: #191919;
    --bg-soft: #202020;
    --surface: #252525;
    --surface-hover: #2e2e2e;
    --border: rgba(255, 255, 255, 0.09);
    --border-strong: rgba(255, 255, 255, 0.18);
    --text: #ebebeb;
    --text-soft: #c8c8c8;
    --muted: #7a7a7a;
    --accent: #4f9cf9;
    --accent-soft: rgba(79, 156, 249, 0.14);
    --hl-fg: #8cc2ff;
    --hl-bg: rgba(79, 156, 249, 0.26);
    --auto-fg: #f0b357;
    --auto-bg: rgba(245, 158, 11, 0.16);
    --p1: #5b8def;
    --p2: #f59e0b;
    --p3: #e74c3c;
    --backdrop: rgba(0, 0, 0, 0.55);
    --check-bg: #252525;
}

/* ==================== 顶栏 ==================== */

.topbar {
    display: flex;
    align-items: center;
    gap: 16px;
    height: 52px;
    padding: 0 20px;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
    position: relative;
    z-index: 10;
}

.topbar-left, .topbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.topbar-center {
    flex: 1;
    display: flex;
    justify-content: center;
    min-width: 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    padding: 4px 6px;
    border-radius: var(--r-sm);
    transition: background var(--t-fast) var(--ease);
}

.brand:hover {
    background: var(--surface);
}

.brand-icon {
    font-size: 18px;
}

.search {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--surface);
    border: 1px solid transparent;
    border-radius: var(--r-md);
    width: 320px;
    max-width: 100%;
    color: var(--muted);
    transition: all var(--t-base) var(--ease);
}

.search:focus-within {
    background: var(--bg);
    border-color: var(--accent);
    color: var(--text);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.search input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text);
    font: inherit;
    min-width: 0;
}

.search input::placeholder {
    color: var(--muted);
}

.search-icon {
    font-size: 14px;
}

.icon-btn {
    width: 32px;
    height: 32px;
    border: 1px solid transparent;
    background: transparent;
    border-radius: var(--r-md);
    color: var(--text-soft);
    font-size: 16px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--t-fast) var(--ease);
}

.mobile-only { display: none; }

.icon-btn:hover {
    background: var(--surface);
    color: var(--text);
}

.icon-btn:active {
    transform: scale(0.94);
}

.bell-btn {
    font-size: 14px;
}

.bell-btn.bell--granted {
    color: var(--accent);
    background: var(--accent-soft);
}

.bell-btn.bell--denied,
.bell-btn.bell--unsupported {
    opacity: 0.55;
}

.sync-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 28px;
    padding: 0 12px;
    border-radius: 14px;
    font-size: 12px;
    font-weight: 500;
    background: var(--surface);
    color: var(--text-soft);
    border: 1px solid var(--border);
    transition: all var(--t-base) var(--ease);
    cursor: default;
    user-select: none;
}

.sync-pill .sync-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--muted);
    transition: background var(--t-base) var(--ease);
}

.sync-pill--local .sync-dot { background: #b0b0b0; }
.sync-pill--cloud .sync-dot { background: #22c55e; }
.sync-pill--syncing .sync-dot { background: var(--accent); animation: pulse 1.2s var(--ease) infinite; }
.sync-pill--error { background: rgba(231, 76, 60, 0.10); color: var(--p3); border-color: rgba(231, 76, 60, 0.25); }
.sync-pill--error .sync-dot { background: var(--p3); }

@keyframes pulse {
    0%, 100% { opacity: 0.4; transform: scale(0.85); }
    50% { opacity: 1; transform: scale(1.15); }
}

/* ==================== 布局 ==================== */

.layout {
    display: grid;
    grid-template-columns: 240px 1fr 320px;
    height: calc(100vh - 52px);
    transition: grid-template-columns var(--t-slow) var(--ease);
}

.layout[data-detail-open="false"] {
    grid-template-columns: 240px 1fr 0;
}

/* 隐藏第三栏：把面板 absolute 定位 */
.layout[data-detail-open="false"] .detail {
    position: absolute;
    right: 0;
    top: 52px;
    bottom: 0;
    transform: translateX(100%);
    pointer-events: none;
    opacity: 0;
}

.detail {
    border-left: 1px solid var(--border);
    background: var(--bg-soft);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform var(--t-slow) var(--ease), opacity var(--t-slow) var(--ease);
    z-index: 5;
}

.sidebar {
    border-right: 1px solid var(--border);
    background: var(--bg-soft);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 16px 8px;
    flex-shrink: 0;
}

.sidebar-title {
    margin: 0;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--muted);
}

.group-list {
    list-style: none;
    margin: 0;
    padding: 4px 8px;
    overflow-y: auto;
    flex: 1;
}

.group-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: var(--r-sm);
    cursor: pointer;
    color: var(--text-soft);
    font-size: 13.5px;
    user-select: none;
    transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
    position: relative;
}

.group-item:hover {
    background: var(--surface);
    color: var(--text);
}

.group-item.is-active {
    background: var(--accent-soft);
    color: var(--accent);
    font-weight: 500;
}

.group-item.is-drag-over::before {
    content: "";
    position: absolute;
    inset: -1px 6px;
    border: 1.5px dashed var(--accent);
    border-radius: var(--r-sm);
    pointer-events: none;
}

.group-dot {
    width: 8px;
    height: 8px;
    border-radius: 2px;
    flex-shrink: 0;
}

.group-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.group-count {
    font-size: 11px;
    color: var(--muted);
    font-variant-numeric: tabular-nums;
}

.group-actions {
    display: none;
    gap: 2px;
}

.group-item:hover .group-actions {
    display: flex;
}

.group-action {
    width: 20px;
    height: 20px;
    border: none;
    background: transparent;
    color: var(--muted);
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: all var(--t-fast) var(--ease);
}

.group-action:hover {
    background: var(--surface-hover);
    color: var(--text);
}

.ghost-btn {
    border: none;
    background: transparent;
    color: var(--text-soft);
    font: inherit;
    cursor: pointer;
    padding: 4px 10px;
    border-radius: var(--r-sm);
    transition: all var(--t-fast) var(--ease);
}

.ghost-btn:hover {
    background: var(--surface);
    color: var(--text);
}

.ghost-btn:active {
    transform: scale(0.96);
}

/* ==================== 中部任务流 ==================== */

.content {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.content-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 32px 12px;
    gap: 12px;
    flex-shrink: 0;
    flex-wrap: wrap;
}

.content-title {
    margin: 0;
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.filter-chips {
    display: flex;
    gap: 2px;
    background: var(--surface);
    border-radius: var(--r-md);
    padding: 3px;
    flex-shrink: 0;
    white-space: nowrap;
}

.chip {
    border: none;
    background: transparent;
    color: var(--muted);
    font: inherit;
    font-size: 12.5px;
    font-weight: 500;
    padding: 5px 12px;
    border-radius: 7px;
    cursor: pointer;
    transition: all var(--t-base) var(--ease);
}

.chip:hover {
    color: var(--text-soft);
}

.chip.is-active {
    background: var(--bg);
    color: var(--text);
    box-shadow: var(--shadow-sm);
}

.task-list {
    list-style: none;
    margin: 0;
    padding: 8px 32px 16px;
    overflow-y: auto;
    flex: 1;
}

.task-list:empty::after {
    content: "暂无任务，回车快速添加 ↓";
    display: block;
    text-align: center;
    color: var(--muted);
    padding: 60px 20px;
    font-size: 13px;
    animation: fadeIn 400ms var(--ease) both;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==================== 任务行 ==================== */

.task-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 8px 8px 0;
    border-radius: var(--r-sm);
    position: relative;
    cursor: grab;
    transition: background var(--t-fast) var(--ease), opacity var(--t-base) var(--ease);
    animation: slideIn 240ms var(--ease-out) both;
}

.task-item:hover {
    background: var(--surface);
}

.task-item.is-dragging {
    cursor: grabbing;
    opacity: 0.35;
}

.task-item.is-drag-ghost {
    cursor: grabbing;
    background: var(--bg);
    box-shadow: var(--shadow-lg);
    z-index: 50;
    transition: none;
}

.task-item.drop-before::before,
.task-item.drop-after::after {
    content: "";
    position: absolute;
    left: 36px;
    right: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
    animation: dropPulse 1.4s var(--ease) infinite;
}

.task-item.drop-before::before { top: -1px; }
.task-item.drop-after::after { bottom: -1px; }

@keyframes dropPulse {
    0%, 100% { opacity: 0.5; transform: scaleX(0.98); }
    50% { opacity: 1; transform: scaleX(1); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideOut {
    to { opacity: 0; transform: translateX(28px); height: 0; padding-top: 0; padding-bottom: 0; }
}

.task-item.is-removing {
    animation: slideOut 220ms var(--ease) forwards;
    overflow: hidden;
    pointer-events: none;
}

/* 复选框 */
.checkbox {
    appearance: none;
    width: 18px;
    height: 18px;
    border: 1.5px solid var(--border-strong);
    border-radius: 4px;
    background: var(--check-bg);
    cursor: pointer;
    margin-top: 2px;
    flex-shrink: 0;
    position: relative;
    transition: all var(--t-fast) var(--ease);
}

.checkbox:hover {
    border-color: var(--accent);
}

.checkbox:checked {
    background: var(--accent);
    border-color: var(--accent);
}

.checkbox:checked::after {
    content: "";
    position: absolute;
    left: 5px;
    top: 1px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    animation: checkPop 260ms var(--ease-out);
}

@keyframes checkPop {
    from { opacity: 0; transform: rotate(45deg) scale(0.4); }
    to { opacity: 1; transform: rotate(45deg) scale(1); }
}

.task-body {
    flex: 1;
    min-width: 0;
}

.task-title {
    color: var(--text);
    line-height: 1.5;
    word-wrap: break-word;
    transition: color var(--t-base) var(--ease), text-decoration-color var(--t-base) var(--ease);
    text-decoration: line-through transparent;
    text-decoration-thickness: 1.5px;
}

.task-item.is-done .task-title {
    color: var(--muted);
    text-decoration-color: var(--muted);
}

.task-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 4px;
    align-items: center;
    font-size: 11.5px;
    color: var(--muted);
}

.meta-chip {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 2px 7px;
    border-radius: 4px;
    background: var(--surface);
    border: 1px solid var(--border);
}

.meta-chip.tag {
    color: var(--accent);
    background: var(--accent-soft);
    border-color: transparent;
}

.meta-chip.due { font-variant-numeric: tabular-nums; }
.meta-chip.due.is-overdue { color: var(--p3); border-color: rgba(231, 76, 60, 0.3); background: rgba(231, 76, 60, 0.08); }
.meta-chip.due.is-today { color: var(--p2); border-color: rgba(245, 158, 11, 0.3); background: rgba(245, 158, 11, 0.08); }
.meta-chip.notified { background: rgba(91, 141, 239, 0.12); border-color: transparent; }

.priority-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 6px;
    transition: transform var(--t-fast) var(--ease);
}

.task-item:hover .priority-dot {
    transform: scale(1.2);
}

.priority-dot.p0 { background: transparent; border: 1.5px dashed var(--muted); }
.priority-dot.p1 { background: var(--p1); }
.priority-dot.p2 { background: var(--p2); }
.priority-dot.p3 { background: var(--p3); box-shadow: 0 0 0 2px rgba(231, 76, 60, 0.15); }

/* 子任务 */
.subtask-list {
    list-style: none;
    margin: 4px 0 0;
    padding: 0 0 0 24px;
    border-left: 1px solid var(--border);
}

.subtask-list.is-collapsed {
    display: none;
}

.subtask-toggle {
    background: none;
    border: none;
    color: var(--muted);
    cursor: pointer;
    font-size: 11px;
    padding: 0 4px;
    transition: color var(--t-fast) var(--ease);
    display: inline-flex;
    align-items: center;
    gap: 2px;
}

.subtask-toggle:hover {
    color: var(--text);
}

.subtask-toggle-arrow {
    transition: transform var(--t-base) var(--ease);
    display: inline-block;
}

.subtask-list.is-collapsed ~ .subtask-toggle .subtask-toggle-arrow,
.task-item.has-collapsed-subtasks .subtask-toggle-arrow {
    transform: rotate(-90deg);
}

.subtask-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 4px 6px;
    border-radius: 4px;
    transition: background var(--t-fast) var(--ease);
    animation: slideIn 220ms var(--ease-out) both;
}

.subtask-item:hover {
    background: var(--surface);
}

.subtask-item .checkbox {
    width: 14px;
    height: 14px;
    margin-top: 3px;
}

.subtask-item .checkbox:checked::after {
    left: 3px;
    top: 0;
    width: 4px;
    height: 8px;
    border-width: 0 1.5px 1.5px 0;
}

.subtask-title {
    font-size: 13px;
    color: var(--text-soft);
    line-height: 1.5;
    transition: color var(--t-base) var(--ease);
    text-decoration: line-through transparent;
    text-decoration-thickness: 1.5px;
}

.subtask-item.is-done .subtask-title {
    color: var(--muted);
    text-decoration-color: var(--muted);
}

.subtask-add {
    margin-top: 4px;
    margin-left: 28px;
    background: transparent;
    border: none;
    color: var(--muted);
    cursor: pointer;
    font-size: 12px;
    padding: 4px 6px;
    border-radius: 4px;
    transition: all var(--t-fast) var(--ease);
    display: none;
}

.task-item:hover .subtask-add,
.subtask-list:hover .subtask-add {
    display: inline-block;
}

.subtask-add:hover {
    background: var(--surface);
    color: var(--text);
}

/* 快速添加 */
.quick-add {
    margin: 0 32px 24px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    background: var(--bg);
    transition: all var(--t-base) var(--ease);
    flex-shrink: 0;
}

.quick-add:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.quick-add-icon {
    color: var(--muted);
    font-size: 16px;
    flex-shrink: 0;
}

/* 快速添加的实时高亮：镜像层 + 透明文字的 input 叠在一起 */
.quick-add-field {
    position: relative;
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    height: 20px;
}

/* 两层的字体度量必须逐项一致，否则文字会错位 */
.quick-add-highlight,
.quick-add-highlight-inner,
.quick-add-field input {
    font: inherit;
    font-size: 14px;
    line-height: 20px;
    letter-spacing: normal;
    white-space: pre;
}

/* 外层负责「按输入框宽度裁掉溢出」，内层跟着输入框的横向滚动平移 */
.quick-add-highlight {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 20px;
    padding: 0;
    border: 0;
    color: var(--text);
    pointer-events: none;
    user-select: none;
    overflow: hidden;
    z-index: 0;
}

.quick-add-highlight-inner {
    display: block;
    height: 20px;
    will-change: transform;
}

/* 布局始终生效（镜像层没接管时输入框也要铺满） */
.quick-add-field input {
    position: relative;
    z-index: 1;
    flex: 1;
    width: 100%;
    height: 20px;
    padding: 0;
    border: 0;
    outline: none;
    background: transparent;
    caret-color: var(--text);
}

/* 基础样式：不依赖 .quick-add-field 包裹层，任何情况下输入框都是主题化的。
   （旧版 index.html 缓存里没有包裹层，这时靠这段兜底） */
.quick-add input {
    flex: 1;
    min-width: 0;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text);
    font: inherit;
}

/* 兜底：输入框自己的文字永远用主题色显示。
   「高亮」是增强，不能反过来让文字依赖 JS 才可见——
   之前直接写 color: transparent，一旦 JS 没跑起来（模块缓存不一致、
   脚本报错）输入框就变成空白，用户连打出来的字都看不见。
   只有 render.js 给 .quick-add-field 加了 is-hl-ready，
   才把文字交给镜像层显示。 */
.quick-add-field.is-hl-ready input {
    color: transparent;
}

.quick-add-field input::placeholder {
    color: var(--muted);
}

/* 选中的背景不能用 padding/margin：那会改变字符步进宽度，导致后面的字错位。
   用 box-shadow 外扩画圆角底色，对排版零影响。 */
.quick-add-highlight .hl-chip {
    color: var(--hl-fg);
    background: none;
    border-radius: 5px;
    box-shadow: 0 0 0 3px var(--hl-bg);
}

.primary-btn {
    border: none;
    background: var(--accent);
    color: white;
    font: inherit;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: var(--r-sm);
    cursor: pointer;
    transition: all var(--t-fast) var(--ease);
}

.primary-btn:hover {
    background: color-mix(in srgb, var(--accent) 88%, black);
    transform: translateY(-1px);
}

.primary-btn:active {
    transform: translateY(0) scale(0.98);
}

/* ==================== 详情面板 ==================== */

.detail-head {
    display: flex;
    justify-content: flex-end;
    padding: 8px 8px 0;
    flex-shrink: 0;
}

.detail-body {
    padding: 0 24px 24px;
    overflow-y: auto;
    flex: 1;
}

.detail-title {
    width: 100%;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text);
    font-size: 20px;
    font-weight: 600;
    line-height: 1.5;
    padding: 8px 0 14px;
    resize: none;
    font-family: inherit;
    overflow: hidden;
    box-sizing: border-box;
}

.detail-title::placeholder {
    color: var(--muted);
}

.detail-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 13px;
}

.detail-row label {
    color: var(--muted);
    width: 56px;
    flex-shrink: 0;
    font-size: 12px;
}

.detail-row input[type="text"] {
    border: none;
    outline: none;
    background: var(--surface);
    border-radius: var(--r-sm);
    padding: 5px 10px;
    color: var(--text);
    font: inherit;
    flex: 1;
    transition: all var(--t-fast) var(--ease);
}

.detail-row input:focus {
    background: var(--bg);
    box-shadow: 0 0 0 2px var(--accent-soft);
}

.due-fields {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

/* ============ 自绘日期 / 时间选择器 ============ */

.field-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.field-chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    border: 1px solid transparent;
    outline: none;
    background: var(--surface);
    border-radius: var(--r-sm);
    padding: 5px 10px;
    color: var(--text);
    font: inherit;
    font-size: 13px;
    line-height: 1.2;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--t-fast) var(--ease);
}

.field-chip:hover {
    background: var(--surface-hover);
}

.field-chip:focus-visible {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-soft);
}

.field-chip.is-empty {
    color: var(--muted);
}

.field-chip.is-empty:hover {
    color: var(--text-soft);
}

.field-chip-icon {
    font-size: 12px;
    line-height: 1;
    opacity: 0.85;
}

.field-chip-label {
    font-variant-numeric: tabular-nums;
}

.field-wrap.is-auto .field-chip {
    border: 1px dashed var(--p2);
    background: var(--auto-bg);
    color: var(--auto-fg);
}

/* 清除按钮：只有填了值才出现，浮在 chip 右上角 */
.field-clear {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 16px;
    height: 16px;
    padding: 0;
    border: 1px solid var(--border-strong);
    border-radius: 50%;
    background: var(--bg);
    color: var(--muted);
    font-size: 12px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--t-fast) var(--ease);
}

.field-clear:hover {
    color: var(--p3);
    border-color: var(--p3);
}

/* 弹层本体：挂在 body 上，深浅色共用一套变量 */
.popover {
    position: fixed;
    z-index: 1500;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    box-shadow: var(--shadow-lg);
    padding: 12px;
    animation: popIn 160ms var(--ease-out) both;
    user-select: none;
}

@keyframes popIn {
    from { opacity: 0; transform: translateY(-4px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ---- 日历 ---- */

.cal {
    width: 252px;
}

.cal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
}

.cal-title {
    font-size: 13px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.cal-nav {
    width: 26px;
    height: 26px;
    border: none;
    border-radius: var(--r-sm);
    background: transparent;
    color: var(--text-soft);
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    transition: all var(--t-fast) var(--ease);
}

.cal-nav:hover {
    background: var(--surface);
    color: var(--text);
}

.cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.cal-weekday {
    text-align: center;
    font-size: 11px;
    color: var(--muted);
    padding-bottom: 4px;
}

.cal-day {
    height: 30px;
    border: none;
    border-radius: var(--r-sm);
    background: transparent;
    color: var(--text);
    font: inherit;
    font-size: 12.5px;
    font-variant-numeric: tabular-nums;
    cursor: pointer;
    transition: all var(--t-fast) var(--ease);
}

.cal-day:hover {
    background: var(--surface-hover);
}

.cal-day.is-weekend {
    color: var(--p3);
}

.cal-day.is-out {
    color: var(--muted);
    opacity: 0.45;
}

.cal-day.is-today {
    box-shadow: inset 0 0 0 1px var(--border-strong);
    font-weight: 600;
}

.cal-day.is-selected {
    background: var(--accent);
    color: #fff;
    font-weight: 600;
}

.cal-day.is-selected:hover {
    background: var(--accent);
}

.cal-foot {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
}

.cal-quick {
    border: none;
    background: var(--surface);
    color: var(--text-soft);
    font: inherit;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: var(--r-sm);
    cursor: pointer;
    transition: all var(--t-fast) var(--ease);
}

.cal-quick:hover {
    background: var(--surface-hover);
    color: var(--text);
}

.cal-quick.is-clear {
    margin-left: auto;
    color: var(--muted);
}

.cal-quick.is-clear:hover {
    color: var(--p3);
    background: rgba(231, 76, 60, 0.1);
}

/* ---- 时间选择 ---- */

.timepick {
    width: 208px;
}

.timepick-quick {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 10px;
}

.timepick-quick-btn {
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text-soft);
    font: inherit;
    font-size: 12px;
    padding: 3px 8px;
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--t-fast) var(--ease);
}

.timepick-quick-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
}

.timepick-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.timepick-col-head {
    text-align: center;
    font-size: 11px;
    color: var(--muted);
}

.timepick-col {
    /* relative 是必须的：JS 用 target.offsetTop - (col.clientHeight - h)/2
       把选中项滚到中间，不加的话 offsetParent 会是 .popover，坐标会整体偏移。 */
    position: relative;
    height: 148px;
    overflow-y: auto;
    scrollbar-width: thin;
    border-radius: var(--r-sm);
    background: var(--bg-soft);
    padding: 2px 0;
}

.timepick-cell {
    display: block;
    width: 100%;
    border: none;
    background: transparent;
    color: var(--text);
    font: inherit;
    font-size: 13px;
    font-variant-numeric: tabular-nums;
    line-height: 26px;
    text-align: center;
    cursor: pointer;
    transition: all var(--t-fast) var(--ease);
}

.timepick-cell:hover {
    background: var(--surface-hover);
}

.timepick-cell.is-selected {
    background: var(--accent);
    color: #fff;
    font-weight: 600;
}

.timepick-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
}

.timepick-foot .cal-quick.is-clear {
    margin-left: 0;
}

.timepick-foot .primary-btn {
    padding: 4px 14px;
    font-size: 12.5px;
}

.due-offset-wrap {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--muted);
    font-size: 12px;
}

.detail-offset {
    border: none;
    outline: none;
    background: var(--surface);
    border-radius: var(--r-sm);
    padding: 5px 8px;
    color: var(--text);
    font: inherit;
    width: 64px;
}

.detail-offset:focus {
    background: var(--bg);
    box-shadow: 0 0 0 2px var(--accent-soft);
}

.due-offset-suffix {
    white-space: nowrap;
}

.priority-picker {
    display: flex;
    gap: 6px;
}

.priority-btn {
    width: 26px;
    height: 26px;
    border-radius: var(--r-sm);
    border: 1px solid var(--border);
    background: var(--bg);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--t-fast) var(--ease);
}

.priority-btn:hover {
    background: var(--surface);
}

.priority-btn.is-active {
    border-color: var(--accent);
    background: var(--accent-soft);
}

.priority-btn .priority-dot {
    margin: 0;
}

.detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    flex: 1;
    padding: 4px 8px;
    background: var(--surface);
    border-radius: var(--r-sm);
    min-height: 28px;
    align-items: center;
    transition: all var(--t-fast) var(--ease);
}

.detail-tags:focus-within {
    background: var(--bg);
    box-shadow: 0 0 0 2px var(--accent-soft);
}

.tag-pill {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 2px 8px;
    border-radius: 4px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 12px;
    animation: tagPop 180ms var(--ease-out);
}

@keyframes tagPop {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

.tag-pill button {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    padding: 0;
    margin-left: 2px;
    font-size: 14px;
    line-height: 1;
    opacity: 0.6;
}

.tag-pill button:hover { opacity: 1; }

.detail-tags input {
    flex: 1;
    min-width: 60px;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text);
    font: inherit;
    font-size: 13px;
}

.detail-section {
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
}

.detail-section-title {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--muted);
    margin: 0 0 8px;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.detail-textarea {
    width: 100%;
    min-height: 120px;
    border: 1px solid var(--border);
    outline: none;
    background: var(--bg);
    color: var(--text);
    font: inherit;
    font-size: 13px;
    line-height: 1.6;
    padding: 10px 12px;
    border-radius: var(--r-md);
    resize: vertical;
    font-family: inherit;
    transition: all var(--t-fast) var(--ease);
}

.detail-textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.markdown-preview {
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    padding: 10px 12px;
    background: var(--bg);
    color: var(--text);
    font-size: 13px;
    line-height: 1.6;
    min-height: 80px;
}

.markdown-preview.is-empty {
    color: var(--muted);
    font-style: italic;
}

.markdown-preview h1,
.markdown-preview h2,
.markdown-preview h3 {
    margin: 8px 0 4px;
    line-height: 1.3;
}

.markdown-preview h1 { font-size: 18px; }
.markdown-preview h2 { font-size: 16px; }
.markdown-preview h3 { font-size: 14px; }

.markdown-preview p { margin: 6px 0; }

.markdown-preview ul {
    margin: 6px 0;
    padding-left: 22px;
}

.markdown-preview blockquote {
    border-left: 3px solid var(--border-strong);
    margin: 6px 0;
    padding: 2px 10px;
    color: var(--text-soft);
}

.markdown-preview code {
    background: var(--surface);
    padding: 1px 5px;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 12px;
}

.markdown-preview .md-task {
    display: flex;
    align-items: center;
    gap: 6px;
}

.markdown-preview a {
    color: var(--accent);
    text-decoration: none;
}

.markdown-preview a:hover { text-decoration: underline; }

.notes-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 6px;
}

.notes-tab {
    border: none;
    background: transparent;
    color: var(--muted);
    font: inherit;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: var(--r-sm);
    cursor: pointer;
    transition: all var(--t-fast) var(--ease);
}

.notes-tab.is-active {
    background: var(--surface);
    color: var(--text);
}

.notes-tab:hover {
    color: var(--text);
}

.detail-danger {
    margin-top: 24px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
}

.danger-btn {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--p3);
    font: inherit;
    font-size: 12.5px;
    padding: 6px 12px;
    border-radius: var(--r-sm);
    cursor: pointer;
    transition: all var(--t-fast) var(--ease);
}

.danger-btn:hover {
    background: rgba(231, 76, 60, 0.08);
    border-color: rgba(231, 76, 60, 0.3);
}

/* ============ 详情面板：草稿动作区 ============ */

.detail-hint {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--muted);
    font-weight: 600;
    margin-bottom: 4px;
}

.detail-hint-small {
    font-size: 11.5px;
    color: var(--muted);
}

.detail-actions {
    position: sticky;
    bottom: 0;
    margin: 20px -24px -24px;
    padding: 14px 24px;
    background: linear-gradient(to top, var(--bg-soft) 80%, transparent);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border-top: 1px solid var(--border);
}

.detail-actions-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.detail-actions-right {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.cz-prompt-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    background: var(--bg);
    color: var(--text);
    font: inherit;
    font-size: 13px;
    outline: none;
    box-sizing: border-box;
    transition: all var(--t-fast) var(--ease);
}

.cz-prompt-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.detail-row input.is-auto {
    border: 1px dashed var(--p2);
    background: var(--auto-bg);
    color: var(--auto-fg);
}

/* ==================== 对话框 ==================== */

.dialog-backdrop {
    position: fixed;
    inset: 0;
    background: var(--backdrop);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 200ms var(--ease) both;
}

.dialog {
    width: 440px;
    max-width: calc(100vw - 32px);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    box-shadow: var(--shadow-lg);
    padding: 24px;
    animation: dialogIn 260ms var(--ease-out) both;
}

@keyframes dialogIn {
    from { opacity: 0; transform: translateY(8px) scale(0.96); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.dialog-title {
    margin: 0 0 6px;
    font-size: 16px;
    font-weight: 600;
}

.dialog-desc {
    margin: 0 0 12px;
    font-size: 13px;
    color: var(--text-soft);
    line-height: 1.6;
}

.dialog-desc strong {
    color: var(--text);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.import-preview {
    list-style: none;
    margin: 0 0 18px;
    padding: 8px 12px;
    background: var(--surface);
    border-radius: var(--r-md);
    max-height: 160px;
    overflow-y: auto;
    font-size: 12.5px;
    color: var(--text-soft);
}

.import-preview li {
    padding: 3px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.import-preview li::before {
    content: "•";
    color: var(--muted);
}

.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ==================== Toast ==================== */

.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: var(--text);
    color: var(--bg);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--t-base) var(--ease), transform var(--t-base) var(--ease);
}

.toast.is-show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ==================== 滚动条 ==================== */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: 5px;
    border: 2px solid var(--bg);
}

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

/* ==================== 响应式：≤860px ==================== */

@media (max-width: 860px) {
    .layout {
        grid-template-columns: 1fr;
    }
    .sidebar {
        position: fixed;
        top: 52px;
        bottom: 0;
        left: 0;
        width: 240px;
        z-index: 8;
        transform: translateX(-100%);
        transition: transform var(--t-slow) var(--ease);
        box-shadow: var(--shadow-lg);
    }
    .sidebar.is-open {
        transform: translateX(0);
    }
    .mobile-only { display: inline-flex; }
    .topbar-right .sync-pill .sync-label {
        display: none;
    }
    .topbar-right .sync-pill {
        padding: 0 8px;
    }
    .filter-chips {
        flex-shrink: 0;
    }
}

@media (max-width: 640px) {
    .topbar-center {
        display: none;
    }
    .content-head {
        padding: 16px 16px 8px;
    }
    .task-list {
        padding: 4px 16px 12px;
    }
    .quick-add {
        margin: 0 16px 16px;
    }
    .layout[data-detail-open="true"] {
        grid-template-columns: 0 0 1fr;
    }
    .layout[data-detail-open="true"] .sidebar { display: none; }
    .detail {
        border-left: none;
        box-shadow: var(--shadow-lg);
    }
    .content:has(+ .detail:not([hidden])) { display: none; }
}