:root {
    --font-family-base: "Inter", sans-serif;
    --font-size-base: 16px;
    --font-size-title: 20px;
    --font-size-sm: 13px;
    --color-background: #f5f5f5;
    --color-surface: #fff;
    --color-surface-muted: #f0f0f0;
    --color-sidebar: #e7e7e7;
    --color-sidebar-mobile: #dedede;
    --color-main-mobile: #fafafa;
    --color-text: #333;
    --color-muted: #626262;
    --color-border: #949494;
    --color-border-muted: #949494;
    --color-border-strong: #4d4d4d;
    --color-highlight: #ffec99;
    --color-mention: #333;
    --color-tag: #333;
    --color-handle: #848484;
    --color-accent: #1c7ed6;
    --color-danger: #c92a2a;
    --color-focus-ring: #6d7dbd;
    --outline-color: #4d4d4d;
    --color-black-rgb: 0 0 0;
    --color-white-rgb: 255 255 255;
    --color-accent-rgb: 28 126 214;
    --color-border-strong-rgb: 77 77 77;
    --color-editing-outline: rgb(var(--color-border-strong-rgb) / 60%);
    --field-focus-outline: 2px solid var(--color-editing-outline);
    --field-focus-outline-offset: 2px;
    --shadow-drag: 0 8px 24px rgb(var(--color-black-rgb) / 18%);
    --radius-sm: 4px;
    --space-xs: 6px;
    --space-sm: 8px;
    --space-md: 12px;
    --space-lg: 16px;
    --space-xl: 20px;
    --transition-fast: 0.2s ease;
    --drop-duration: 0.3s;
    --list-width: 70ch;
    --search-width: 250px;
    --task-handle-icon: url("data:image/svg+xml;base64,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");
    --task-options-icon-left: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxNiIgaGVpZ2h0PSIxNiIgZmlsbD0iIzg0ODQ4NCIgY2xhc3M9ImJpIGJpLWNoZXZyb24tY29tcGFjdC1sZWZ0IiB2aWV3Qm94PSIwIDAgMTYgMTYiPgogIDxwYXRoIGZpbGwtcnVsZT0iZXZlbm9kZCIgZD0iTTkuMjI0IDEuNTUzYS41LjUgMCAwIDEgLjIyMy42N0w2LjU2IDhsMi44ODggNS43NzZhLjUuNSAwIDEgMS0uODk0LjQ0OGwtMy02YS41LjUgMCAwIDEgMC0uNDQ4bDMtNmEuNS41IDAgMCAxIC42Ny0uMjIzIi8+Cjwvc3ZnPg==");
    --task-options-icon-right: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxNiIgaGVpZ2h0PSIxNiIgZmlsbD0iIzg0ODQ4NCIgY2xhc3M9ImJpIGJpLWNoZXZyb24tY29tcGFjdC1yaWdodCIgdmlld0JveD0iMCAwIDE2IDE2Ij4KICA8cGF0aCBmaWxsLXJ1bGU9ImV2ZW5vZGQiIGQ9Ik02Ljc3NiAxLjU1M2EuNS41IDAgMCAxIC42NzEuMjIzbDMgNmEuNS41IDAgMCAxIDAgLjQ0OGwtMyA2YS41LjUgMCAxIDEtLjg5NC0uNDQ4TDkuNDQgOCA2LjU1MyAyLjIyNGEuNS41IDAgMCAxIC4yMjMtLjY3MSIvPgo8L3N2Zz4=");
}

html,
body {
    /* Suppress iOS rubber-band/bounce on the document scroller. There is no
       pull-to-reload in the installed home-screen app, so the bounce only
       gets in the way. Needs iOS 16+; older versions ignore it harmlessly. */
    overscroll-behavior-y: none;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    background-color: var(--color-background);
    color: var(--color-text);
    padding: 0;
    margin: 0;
    min-height: 100vh;
    display: flex;
}

button {
    font: inherit;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    border: 1px solid var(--outline-color);
    background-color: var(--color-surface);
    color: var(--color-text);
    cursor: pointer;
    transition:
        background-color var(--transition-fast),
        color var(--transition-fast);

    svg {
        width: 16px;
        height: 16px;
    }

    &:hover {
        background-color: var(--color-text);
        color: var(--color-surface);
    }

    &:focus-visible {
        outline: 2px solid var(--outline-color);
        outline-offset: 2px;
    }
}

.danger {
    border-color: var(--color-danger);
    color: var(--color-danger);

    &:hover,
    &:focus-visible {
        background-color: var(--color-danger);
        color: var(--color-surface);
    }
}

.iconlabel {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}

.is-drop-target {
    border: 1px solid var(--color-accent);
    box-shadow: inset 0 0 0 2px rgb(var(--color-accent-rgb) / 60%);
}

.lists-app {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    width: 100%;
    max-width: 1200px;
    margin: 0;
    min-height: 100vh;
    background-color: var(--color-background);
}

.lists-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background-color: var(--color-sidebar);
    border-right: 1px solid var(--color-border);
    box-shadow: inset -1px 0 0 rgb(var(--color-white-rgb) / 45%);
    min-width: 0;
    grid-column: 1;
}

.sidebar-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    width: 100%;
    flex: 1;
    min-height: 0;
}

.sidebar-topbar {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-sm);
    min-width: 0;
}

.sidebar-title-row {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    min-width: 0;
}

.sidebar-search-row {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    min-width: 0;
}

.sidebar-status {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    flex: 0 0 auto;
}

.sidebar-title {
    margin: 0;
    font-size: 24px;
    font-weight: 600;
}

@media (width > 640px) {
    .sidebar-title-row {
        gap: var(--space-sm);
    }

    .sidebar-title-row::before {
        content: "";
        display: block;
        width: 3px;
        height: 22px;
        border-radius: var(--radius-sm);
        background-color: var(--color-border-strong);
    }

    .sidebar-title.sr-only {
        position: static;
        width: auto;
        height: auto;
        margin: 0;
        overflow: visible;
        clip-path: none;
        white-space: normal;
        letter-spacing: 0.04em;
        text-transform: uppercase;
    }
}

/* Always-visible connectivity status: muted when connected, red when not. */
.sidebar-sync-indicator {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    width: 14px;
    height: 14px;
    padding: 0;
    font-size: 11px;
    font-weight: 500;
    line-height: 1;
    background: transparent;
    cursor: help;
    transition: color var(--transition-fast), opacity var(--transition-fast);
}

/* The resting state: connected is the norm, so it stays unobtrusive. */
.sidebar-sync-indicator.is-connected {
    color: var(--color-muted);
    opacity: 0.45;
}

/* The one state that should draw the eye: the browser is offline or changes
   aren't reaching the server. No fill; the red hue is the only color in the
   sidebar, so it stands out against the grays on its own. */
.sidebar-sync-indicator.is-disconnected {
    color: var(--color-danger);
    font-size: 14px;
    font-weight: 700;
    opacity: 1;
}

.sidebar-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.sidebar-field {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    font-weight: 500;
    color: var(--color-muted);
}

.sidebar-field-inline {
    flex: 1;
    min-width: 0;
}

.sidebar-search-input {
    font: inherit;
    padding: var(--space-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-surface);
    color: var(--color-text);
    width: 100%;

    &:focus {
        outline: var(--field-focus-outline);
        outline-offset: var(--field-focus-outline-offset);
    }
}

.sidebar-sections {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    flex: 1;
    min-height: 0;
}

.sidebar-content > .sidebar-sections {
    width: 100%;
}

.sidebar-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.sidebar-list-button {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border: none;
    background-color: transparent;
    color: inherit;
    font: inherit;
    text-align: left;
    cursor: pointer;
    flex: 1;

    &:hover {
        background-color: transparent;
        color: inherit;
    }

    &:focus-visible {
        outline: none;
    }
}

.sidebar-list-label {
    flex: 1;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-weight: 600;
    min-width: 0;
    overflow-wrap: anywhere;
}

.sidebar-list-count {
    font-size: 14px;
    color: var(--color-muted);
    white-space: nowrap;
}

.sidebar-list > li {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-surface);
    padding: 0;
}

.sidebar-list > li:hover:not(.is-active),
.sidebar-list > li:focus-within:not(.is-active) {
    border-color: var(--outline-color);
}

.sidebar-list > .is-active {
    background-color: var(--color-text);
    border-color: var(--color-text);
    color: var(--color-surface);
}

.sidebar-list > .is-active .sidebar-list-count {
    color: rgb(var(--color-white-rgb) / 70%);
}

.sidebar-list > .dragging {
    outline: 2px dotted var(--color-focus-ring);
    box-shadow: var(--shadow-drag);
    background-color: var(--color-surface);
}

.sidebar-list > .is-drop-target {
    border-color: var(--color-accent);
    background-color: rgb(var(--color-accent-rgb) / 12%);
}

.sidebar-list > .is-drop-target .sidebar-list-count {
    color: var(--color-text);
}

.sidebar-list-handle {
    cursor: grab;
    color: var(--color-handle);
    user-select: none;
    -webkit-touch-callout: none;
    touch-action: none;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-repeat: no-repeat;
    background-position: center;
    background-size: 20px 20px;
    background-image: var(--task-handle-icon);
    margin-left: 0;

    &:active {
        cursor: grabbing;
    }
}

.sidebar-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.sidebar-actions-disclosure {
    display: flex;
    flex-direction: column;
    margin: 0;
}

.sidebar-actions-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    cursor: pointer;
    font-weight: 600;
    color: var(--color-text);
    padding: var(--space-xs) 0;
    list-style: none;
}

.sidebar-actions-toggle::-webkit-details-marker {
    display: none;
}

.sidebar-actions-toggle::before {
    content: "▸";
    font-size: 10px;
    line-height: 1;
}

.sidebar-actions-disclosure[open] .sidebar-actions-toggle::before {
    content: "▾";
}

.sidebar-actions-toggle-label {
    min-width: 0;
}

.sidebar-actions-toggle .sidebar-status {
    margin-left: auto;
}

.sidebar-actions-toggle:focus-visible {
    outline: 2px solid var(--outline-color);
    outline-offset: 2px;
}

.sidebar-actions-panel {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.sidebar-actions-secondary {
    margin-top: var(--space-sm);
}

.sidebar-version {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2px var(--space-xs);
    margin: var(--space-sm) 0 0;
    color: var(--color-muted);
    font-size: var(--font-size-sm);

    dt {
        font-weight: 500;
    }

    dd {
        margin: 0;
    }
}

.lists-main {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    min-width: 0;
    grid-column: 2;
}

.lists-main-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-md);
}

.lists-main:not(.search-mode) .lists-main-header {
    display: none;
}

.lists-main-title {
    margin: 0;
    font-size: 28px;
    font-weight: 600;
}

.lists-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.list-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.list-section:not(.is-visible) {
    display: none;
}

.lists-main.search-mode .list-section {
    display: flex;
}

.list-section-flash {
    animation: target-flash 0.8s ease;
}

@keyframes target-flash {
    0% {
        box-shadow: 0 0 0 0 rgb(var(--color-accent-rgb) / 40%);
    }

    50% {
        box-shadow: 0 0 0 6px rgb(var(--color-accent-rgb) / 20%);
    }

    100% {
        box-shadow: 0 0 0 0 rgb(var(--color-accent-rgb) / 0%);
    }
}

a4-tasklist {
    display: block;
}

.tasklist-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-md);

    .tasklist-title-wrapper {
        position: relative;
        display: inline-flex;
        align-items: center;
        min-width: 0;
        justify-self: start;
    }

    .tasklist-title {
        margin: 0;
        min-width: 0;
        max-width: 100%;
        font-size: var(--font-size-title);
        font-weight: 600;
        color: var(--color-text);
        padding: var(--space-xs) calc(var(--space-xs) + 20px) var(--space-xs)
            var(--space-xs);
        border: 1px solid transparent;
        border-radius: var(--radius-sm);
        cursor: text;
        transition:
            border-color var(--transition-fast),
            background-color var(--transition-fast),
            box-shadow var(--transition-fast);
        outline: none;

        &:empty {
            display: none;
        }

        &:focus-visible {
            border-color: var(--outline-color);
            box-shadow: 0 0 0 2px rgb(var(--color-border-strong-rgb) / 25%);
        }

        &.is-editing {
            border-color: var(--outline-color);
            background-color: var(--color-surface);
            box-shadow: 0 0 0 2px rgb(var(--color-border-strong-rgb) / 25%);
        }

        &:hover:not(.is-editing),
        &:focus-visible:not(.is-editing) {
            border-color: var(--color-border-muted);
            background-color: var(--color-surface-muted);
        }
    }

    .tasklist-title-edit-icon {
        position: absolute;
        right: 6px;
        top: 50%;
        transform: translateY(-50%);
        width: 16px;
        height: 16px;
        opacity: 0.7;
        pointer-events: none;
        background-repeat: no-repeat;
        background-position: center;
        background-size: 14px 14px;
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none' stroke='%23626262' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M11.5 2.5l2 2M3 13l8-8 2 2-8 8H3v-2z'/%3E%3C/svg%3E");
    }

    .tasklist-title-wrapper:has(.tasklist-title.is-editing)
        .tasklist-title-edit-icon {
        display: none;
    }

    .tasklist-controls {
        display: flex;
        align-items: center;
        justify-content: flex-end;
        gap: var(--space-sm);
        flex-wrap: wrap;
    }
}

.tasklist-search-input {
    font: inherit;
    padding: var(--space-xs);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-surface);
    color: var(--color-text);
    width: var(--search-width);
    max-width: 100%;

    &:focus {
        outline: var(--field-focus-outline);
        outline-offset: var(--field-focus-outline-offset);
    }
}

.tasklist-show-done {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 16px;
    color: var(--color-text);
    cursor: pointer;
}

.tasklist-show-done-label {
    color: var(--color-muted);
}

.tasklist-show-done-toggle {
    appearance: none;
    width: 36px;
    height: 20px;
    margin: 0;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background-color: var(--color-surface-muted);
    cursor: pointer;
    position: relative;
    flex-shrink: 0;
    transition: background-color var(--transition-fast);

    &::before {
        content: "";
        position: absolute;
        top: 50%;
        left: 2px;
        width: 14px;
        height: 14px;
        border-radius: 50%;
        background-color: var(--color-surface);
        border: 1px solid var(--color-border);
        transform: translateY(-50%);
        transition: transform var(--transition-fast);
    }

    &:checked {
        background-color: var(--color-text);
        border-color: var(--color-text);

        &::before {
            transform: translate(16px, -50%);
            border-color: var(--color-text);
        }
    }

    &:focus-visible {
        outline: var(--field-focus-outline);
        outline-offset: var(--field-focus-outline-offset);
    }
}

.tasklist {
    margin: 0;
    padding: 0;
    list-style: none;
}

.task-item {
    position: relative;
    display: flex;
    align-items: stretch;
    gap: 0;
    padding: 0;
    padding-left: var(--space-sm);
    margin-bottom: var(--space-sm);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-bottom: 2px solid var(--color-border-strong);
    overflow: hidden;
    transition:
        background-color var(--transition-fast),
        box-shadow var(--transition-fast);
}

.task-item.is-focused {
    border-color: var(--outline-color);
    box-shadow: inset 3px 0 0 var(--outline-color);
}

.task-item[hidden] {
    display: none;
}

.task-item-main {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    min-height: 38px;
}

.task-item-body {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.done-toggle {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    cursor: pointer;
    margin: 0;

    &:focus-visible {
        outline: 2px solid var(--outline-color);
        outline-offset: 2px;
    }
}

.task-text {
    padding: var(--space-xs) 0;
    flex: 1;
    min-width: 0;

    /* Break long unbreakable strings (e.g. URLs) so they wrap instead of
       overflowing under the drag handle. */
    overflow-wrap: anywhere;
    outline: none;
}

.task-text.text-editing {
    outline: none;
}

.task-text mark {
    background-color: var(--color-highlight);
    color: inherit;
    border-radius: 2px;
}

.task-text.text-checked {
    text-decoration: line-through;
    color: var(--color-muted);
}

.task-item-trailing {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    flex-shrink: 0;
    margin-left: var(--space-sm);
}

.handle {
    cursor: grab;
    color: var(--color-handle);
    user-select: none;
    -webkit-touch-callout: none;
    touch-action: none;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-repeat: no-repeat;
    background-position: center;
    background-size: 24px 24px;
    background-image: var(--task-handle-icon);

    &:active {
        cursor: grabbing;
    }
}

.task-note-toggle {
    border: none;
    background: transparent;
    width: 20px;
    height: 24px;
    padding: 0;
    flex-shrink: 0;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;

    &::before {
        content: "";
        width: 6px;
        height: 6px;
        border-radius: 50%;
        box-sizing: border-box;
        border: 1px solid var(--color-muted);
        background-color: transparent;
    }

    &:hover::before {
        border-color: var(--color-text);
    }

    &:focus-visible {
        outline: var(--field-focus-outline);
        outline-offset: var(--field-focus-outline-offset);
    }

    &[aria-pressed="true"]::before {
        border-color: var(--color-text);
    }

    &.has-note,
    .task-item.is-focused &,
    .task-item:has(.task-note-panel) & {
        display: inline-flex;
    }
}

.task-note-toggle.has-note {
    &::before {
        border: none;
        background-color: var(--color-muted);
    }

    &:hover::before {
        background-color: var(--color-text);
    }

    &[aria-pressed="true"]::before {
        background-color: var(--color-text);
    }
}

.task-note-panel {
    padding: var(--space-sm) var(--space-sm) var(--space-sm)
        calc(20px + var(--space-sm) * 2);
    border-top: 1px solid rgb(var(--color-border-strong-rgb) / 60%);
}

.task-note-scroll-wrap {
    position: relative;
    max-height: 12rem;

    &::before,
    &::after {
        content: "";
        position: absolute;
        left: 0;
        right: 8px;
        height: 10px;
        pointer-events: none;
        z-index: 1;
        opacity: 0;
        transition: opacity var(--transition-fast);
    }

    &::before {
        top: 0;
        background: linear-gradient(
            to bottom,
            rgb(var(--color-white-rgb) / 70%) 0%,
            rgb(var(--color-white-rgb) / 0%) 100%
        );
    }

    &::after {
        bottom: 0;
        background: linear-gradient(
            to top,
            rgb(var(--color-white-rgb) / 70%) 0%,
            rgb(var(--color-white-rgb) / 0%) 100%
        );
    }

    &.is-scrolled-down::before {
        opacity: 1;
    }

    &.is-scrolled-up::after {
        opacity: 1;
    }
}

.task-note-input {
    display: block;
    width: 100%;
    min-height: 6.25rem;
    max-height: 12rem;
    resize: vertical;
    box-sizing: border-box;
    border: none;
    padding: var(--space-xs) 0;
    font: inherit;
    line-height: 1.4;
    color: inherit;
    background: transparent;
    overflow-y: auto;
    scrollbar-gutter: stable;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) transparent;

    &:focus-visible {
        outline: none;
    }

    &::-webkit-scrollbar {
        width: 8px;
    }

    &::-webkit-scrollbar-thumb {
        background-color: var(--color-border);
        border-radius: 999px;
    }

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

.task-item-toggle {
    background-color: inherit;
    border-radius: 0;
    align-self: stretch;
    flex: 0 0 auto;
    min-width: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 var(--space-sm);
    margin-right: 0;
    border: none;
    background-repeat: no-repeat;
    background-position: center;
    background-size: 24px 24px;
    background-image: var(--task-options-icon-left);
    cursor: pointer;
    transition:
        background-color var(--transition-fast),
        color var(--transition-fast);

    &:hover,
    &:focus-visible {
        background-color: var(--color-text);
        color: var(--color-surface);
        outline: none;
    }
}

.task-item-toggle-open {
    background-image: var(--task-options-icon-right);
}

.task-item-actions {
    --task-actions-max-width: 220px;
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0;
    margin: 0;
    max-width: 0;
    opacity: 0;
    pointer-events: none;
    overflow: hidden;
    white-space: nowrap;
    transition:
        max-width var(--transition-fast),
        opacity var(--transition-fast),
        padding var(--transition-fast),
        margin var(--transition-fast);
}

.task-item-actions-open {
    max-width: var(--task-actions-max-width);
    padding: 0 var(--space-sm);
    opacity: 1;
    pointer-events: auto;
}

.task-move-button,
.task-delete-button {
    flex: 0 0 auto;
}

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

.task-item.dragging {
    will-change: transform;
    outline: 3px dotted var(--color-focus-ring);
    box-shadow: var(--shadow-drag);
    background: var(--color-surface);
    opacity: 0.9;
}

.task-item.placeholder {
    background: transparent;
    border: 2px dashed var(--color-border-muted);
    height: 0;
    margin-bottom: var(--space-sm);
}

.tasklist-empty {
    display: none;
    padding: var(--space-md) var(--space-sm);
    color: var(--color-muted);
    font-style: italic;
}

.tasklist-no-matches .tasklist-empty {
    display: block;
}

/* Compact stub for lists with no matches during search. Scoped under
   .search-mode (no-matches only occurs while searching) and kept specific so
   it overrides the base title rules cleanly. Only the appearance collapses —
   document order is preserved so nothing jumps as you type. */
.lists-main.search-mode .tasklist-no-matches {
    /* Lay the title and the "No matching items" note out on a single row
       (title left, note right) instead of stacking them on two lines. */
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-sm);
}

.lists-main.search-mode .tasklist-no-matches .tasklist-controls {
    display: none;
}

.lists-main.search-mode .tasklist-no-matches ol.tasklist {
    display: none;
}

.lists-main.search-mode .tasklist-no-matches .tasklist-header {
    margin-bottom: 0;
}

.lists-main.search-mode .tasklist-no-matches .tasklist-title {
    color: var(--color-muted);
    font-weight: 500;
}

.lists-main.search-mode .tasklist-no-matches .tasklist-empty {
    font-style: normal;
    padding: 0;
}

/* In search mode every list title is a read-only label: drop the rename
   cursor/hover affordance and the padding reserved for the edit icon. */
.lists-main.search-mode .tasklist-header .tasklist-title {
    cursor: default;
    padding-right: var(--space-xs);
}

.lists-main.search-mode .tasklist-header .tasklist-title:hover,
.lists-main.search-mode .tasklist-header .tasklist-title:focus-visible {
    border-color: transparent;
    background-color: transparent;
}

.task-token-mention {
    color: var(--color-mention);
    font-weight: 600;
}

.task-token-tag {
    color: var(--color-tag);
    font-weight: 600;
}

.flip-animating {
    will-change: transform;
    transition: transform 140ms ease;
}

.drop-animation {
    will-change: transform;
    animation: drop-slide var(--drop-duration) ease-out;
}

@keyframes drop-slide {
    0% {
        transform: translateX(-8px);
        opacity: 0.7;
    }

    50% {
        transform: translateX(8px);
        opacity: 0.7;
    }

    100% {
        transform: translateX(0);
        opacity: 1;
    }
}

.move-dialog {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.move-dialog[hidden] {
    display: none;
}

.move-dialog-backdrop {
    position: absolute;
    inset: 0;
    background-color: rgb(var(--color-black-rgb) / 30%);
}

.move-dialog-content {
    position: relative;
    background-color: var(--color-surface);
    border-radius: 8px;
    padding: var(--space-xl);
    min-width: min(420px, calc(100vw - 40px));
    max-width: 520px;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    box-shadow: 0 24px 48px rgb(var(--color-black-rgb) / 20%);
}

.move-dialog-title {
    margin: 0;
    font-size: 22px;
    font-weight: 600;
}

.move-dialog-description {
    margin: 0;
    font-size: 16px;
    color: var(--color-muted);
}

.move-dialog-options {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.move-dialog-option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font: inherit;
    cursor: pointer;
    width: 100%;
}

.move-dialog-option-name {
    font-weight: 600;
}

.move-dialog-option-count {
    font-size: 14px;
    color: var(--color-muted);
}

.move-dialog-actions {
    display: flex;
    justify-content: flex-end;
}

.move-dialog-cancel {
    font: inherit;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    border: 1px solid var(--outline-color);
    background-color: transparent;
    cursor: pointer;

    &:hover,
    &:focus-visible {
        background-color: var(--color-text);
        color: var(--color-surface);
        outline: none;
    }
}

.shortcuts-dialog {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.shortcuts-dialog[hidden] {
    display: none;
}

.shortcuts-dialog-backdrop {
    position: absolute;
    inset: 0;
    background-color: rgb(var(--color-black-rgb) / 30%);
}

.shortcuts-dialog-content {
    position: relative;
    background-color: var(--color-surface);
    border-radius: 8px;
    padding: var(--space-xl);
    min-width: min(360px, calc(100vw - 40px));
    max-width: min(680px, calc(100vw - 40px));
    max-height: calc(100dvh - 80px);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    box-shadow: 0 24px 48px rgb(var(--color-black-rgb) / 20%);
}

.shortcuts-dialog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.shortcuts-dialog-title {
    margin: 0;
    font-size: 22px;
    font-weight: 600;
}

.shortcuts-dialog-close {
    font: inherit;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-sm);
    border: 1px solid var(--outline-color);
    background-color: transparent;
    cursor: pointer;

    &:hover,
    &:focus-visible {
        background-color: var(--color-text);
        color: var(--color-surface);
        outline: none;
    }
}

.shortcuts-dialog-body {
    overflow-y: auto;
    overscroll-behavior: contain;
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    padding-right: var(--space-xs);
}

.shortcuts-dialog-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.shortcuts-dialog-group-title {
    margin: 0;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-muted);
}

.shortcuts-dialog-list {
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--space-sm) var(--space-lg);
}

.shortcuts-dialog-row {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.shortcuts-dialog-keys {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    min-width: 6.5em;
}

.shortcuts-dialog-desc {
    flex: 1 1 auto;
    margin: 0;
    color: var(--color-text);
}

.shortcuts-dialog-hint {
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-xs);
    font-size: 14px;
    color: var(--color-muted);
}

.shortcuts-dialog-key {
    font: inherit;
    font-size: 13px;
    line-height: 1;
    min-width: 1.5em;
    text-align: center;
    padding: var(--space-xs) var(--space-sm);
    border: 1px solid var(--outline-color);
    border-bottom-width: 2px;
    border-radius: var(--radius-sm);
    background-color: var(--color-surface-muted);
}

@media (width <= 640px) {
    html,
    body {
        background-color: var(--color-sidebar-mobile);
    }

    .lists-app {
        grid-template-columns: 1fr;
        align-content: start;
    }

    .lists-sidebar {
        border-right: none;
        border-bottom: 1px dashed var(--color-border-strong);
        box-shadow: 0 6px 16px rgb(var(--color-black-rgb) / 10%);
        align-self: start;
        grid-column: 1;
        background-color: var(--color-sidebar-mobile);
        gap: var(--space-lg);
        padding-top: calc(var(--space-lg) + env(safe-area-inset-top, 0px));
        padding-left: calc(var(--space-lg) + env(safe-area-inset-left, 0px));
        padding-right: calc(var(--space-lg) + env(safe-area-inset-right, 0px));
    }

    .lists-main {
        grid-column: 1;
        background-color: var(--color-main-mobile);
    }

    .sidebar-content {
        flex: none;
        gap: var(--space-lg);
    }

    .sidebar-sections {
        flex: none;
        gap: var(--space-lg);
    }

    .sidebar-actions-disclosure {
        margin-top: 0;
    }

    .sidebar-topbar {
        flex-direction: row;
        align-items: center;
        gap: var(--space-sm);
    }

    .sidebar-title-row {
        display: none;
    }

    .sidebar-search-row {
        flex: 1 1 auto;
    }

    .sidebar-sync-indicator {
        width: 12px;
        height: 12px;
        font-size: 10px;
    }

    .sidebar-sync-indicator.is-disconnected {
        font-size: 13px;
    }

    .sidebar-search-input {
        min-width: 0;
    }

    .tasklist-header {
        grid-template-columns: minmax(0, 1fr);
        align-items: stretch;
        gap: var(--space-sm);

        .tasklist-title-wrapper {
            justify-self: start;
        }

        .tasklist-title {
            width: auto;
        }

        .tasklist-controls {
            width: 100%;
            justify-content: space-between;
            flex-wrap: nowrap;
        }

        .tasklist-controls .iconlabel {
            width: auto;
        }

        .tasklist-show-done {
            white-space: nowrap;
        }
    }

    .lists-main.search-mode .tasklist-header {
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: center;

        .tasklist-controls {
            width: auto;
        }
    }

    .tasklist > .task-item {
        --task-actions-reveal-width: 128px;
        --task-swipe-translate: 0px;

        .task-item-toggle {
            display: none;
        }

        .task-item-body {
            flex: 1 1 auto;
            background-color: var(--color-surface);
            z-index: 1;
            transform: translateX(0);
            transition: transform var(--transition-fast);
        }

        .task-item-actions {
            --task-actions-max-width: 260px;
            position: absolute;
            inset-block: 0;
            right: 0;
            z-index: 2;
            width: var(--task-actions-reveal-width);
            max-width: var(--task-actions-reveal-width);
            justify-content: flex-end;
            padding: 0 var(--space-sm);
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            background-color: var(--color-surface);
        }

        .task-item-actions-open {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
        }

        &:has(.task-item-actions-open) .task-item-body {
            transform: translateX(calc(-1 * var(--task-actions-reveal-width)));
        }

        &:has(.task-item-actions-open) .task-text,
        &.task-item-swiping .task-text {
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        &.task-item-swiping .task-item-body {
            transform: translateX(var(--task-swipe-translate));
            transition: none;
        }

        &.task-item-swiping .task-item-actions {
            opacity: 1;
            visibility: visible;
        }
    }
}