.sidebar[data-sidebar] {
    --sidebar-effective-width: var(--sidebar-width-desktop);
    --sidebar-control-height: 32px;
    --sidebar-field-height: 36px;
    --sidebar-section-padding: 12px;
    --sidebar-section-padding-compact: 12px;
    --sidebar-shell-gutter: 16px;
    --sidebar-shell-gap: 8px;
    --sidebar-section-radius: var(--radius-none);
    --sidebar-title-size: var(--font-size-sm);
    --sidebar-body-font-size: var(--font-size-sm);
    --sidebar-section-title-size: var(--font-size-sm);
    --sidebar-radius: var(--surface-radius);
    --sidebar-button-radius: var(--control-radius);
    --sidebar-button-padding-x: 12px;
    --sidebar-combobox-input-padding-right: calc(var(--control-padding-x-base) + var(--control-icon-button-size-sm) + var(--control-gap-base));
    --sidebar-combobox-clear-offset: 6px;
    --sidebar-combobox-clear-bg: transparent;
    --sidebar-combobox-clear-color: var(--text-muted);
    --sidebar-combobox-clear-bg-hover: var(--emphasis-action-secondary-bg-hover);
    --sidebar-combobox-clear-color-hover: var(--emphasis-action-secondary-color-hover);
    --sidebar-combobox-list-padding: 4px;
    --sidebar-combobox-list-gap: 4px;
    --sidebar-combobox-tag-gap: 6px;
    --sidebar-combobox-tag-min-height: 24px;
    --sidebar-combobox-tag-padding: 0 8px;
    --sidebar-combobox-tag-font-size: var(--font-size-xs);
    --sidebar-combobox-tag-remove-size: var(--control-icon-button-size-xs);
    --sidebar-combobox-tag-remove-bg: transparent;
    --sidebar-combobox-tag-remove-color: var(--emphasis-action-secondary-color);
    --sidebar-combobox-tag-remove-bg-hover: var(--emphasis-action-secondary-bg-hover);
    --sidebar-ladder-shell-bg: color-mix(in srgb, var(--container-surface-section) 72%, var(--container-surface-shell));
    --sidebar-ladder-shell-border: var(--container-border-shell);
    --sidebar-ladder-rail-bg: var(--container-surface-section);
    --sidebar-ladder-rail-border: var(--theme-border-surface-panel);
    --sidebar-ladder-section-bg: var(--container-surface-subsection);
    --sidebar-ladder-item-bg: var(--container-surface-item);
    --sidebar-ladder-item-border: var(--theme-border-surface-item);
    --sidebar-control-surface-bg: var(--sidebar-ladder-item-bg);
    --sidebar-control-surface-bg-hover: color-mix(in srgb, var(--sidebar-ladder-item-bg) 92%, var(--sidebar-ladder-section-bg));
    --sidebar-control-surface-bg-active: color-mix(in srgb, var(--sidebar-ladder-item-bg) 84%, var(--sidebar-ladder-section-bg));
    --sidebar-control-surface-border: var(--theme-border-subtle);
    --sidebar-control-surface-border-hover: var(--sidebar-control-surface-border);
    --sidebar-ladder-title-color: var(--text-primary);
    position: sticky;
    top: var(--sidebar-sticky-top-current, var(--sidebar-sticky-top));
    align-self: start;
    width: 100%;
    max-height: calc(100dvh - var(--sidebar-sticky-top-current, var(--sidebar-sticky-top)) - 16px);
    display: flex;
    flex-direction: column;
    gap: 0;
    border: var(--sidebar-ladder-shell-border);
    border-radius: var(--sidebar-radius);
    background: var(--sidebar-ladder-shell-bg);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    box-shadow: none;
    overflow: hidden;
    isolation: isolate;
    color: var(--text-primary);
}
.sidebar[data-sidebar][data-sidebar-density="compact"] { --sidebar-section-padding: var(--sidebar-section-padding-compact); }
.sidebar-header,
.sidebar-footer[data-sidebar-apply-mode] {
    width: 100%;
    padding-inline: var(--sidebar-shell-gutter);
    box-sizing: border-box;
}
.sidebar-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas: "title actions" "meta meta";
    gap: 4px 6px;
    align-items: center;
    padding-block: var(--sidebar-shell-gutter);
    position: relative;
    z-index: 2;
}

.sidebar-header__title,
.sidebar-header__meta {
    display: inline-flex;
    align-items: center;
    min-width: 0;
}
.sidebar-header__title { grid-area: title; gap: 8px; }
.sidebar-header__icon { flex: 0 0 auto; }
.sidebar-header__heading { margin: 0; min-width: 0; font-size: var(--sidebar-title-size); font-weight: 600; line-height: 1.3; }
.sidebar-header__actions { grid-area: actions; display: inline-flex; flex-wrap: wrap; justify-content: flex-end; gap: 4px; align-items: center; }
.sidebar-header__meta { grid-area: meta; gap: 6px; min-height: 0; }
.sidebar-header__meta[hidden],
[data-sidebar-search-block][hidden] { display: none; }
.sidebar-search [data-sidebar-search-empty],
.sidebar-footer__meta,
.sidebar .search-presets-quick-empty,
.sidebar-section > .text-meta:first-child,
.sidebar [data-search-chip-caption] { margin: 0; }

.sidebar-header-nav,
.sidebar-search {
    display: block;
    width: 100%;
    border-top: 1px solid var(--sidebar-ladder-rail-border);
    background: var(--sidebar-ladder-rail-bg);
    position: relative;
    z-index: 2;
}

.sidebar-header-nav { overflow: visible; }
.sidebar-search { padding: 6px var(--sidebar-shell-gutter); box-sizing: border-box; }

.sidebar-header-nav__inner,
.sidebar-search__inner {
    display: grid;
    gap: 4px;
    width: 100%;
    box-sizing: border-box;
}

.sidebar-header-nav__inner { padding: 6px 0; }
.sidebar-search__inner { padding: 0; }
.sidebar-search[hidden] { display: none; }

.sidebar-scroll {
    flex: 1 1 auto;
    min-height: 0;
    width: 100%;
    min-width: 0;
    overflow-y: auto;
    overflow-x: hidden;
    display: grid;
    gap: var(--sidebar-shell-gap);
    padding: var(--sidebar-shell-gap) 0 0;
    border-top: 1px solid var(--sidebar-ladder-rail-border);
    position: relative;
    z-index: 1;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
}

.sidebar .sidebar-scroll > [data-sidebar-section],
.sidebar-section,
.sidebar-section > :not(.sidebar-section__header),
.sidebar-section__body,
.sidebar-nav-list { min-width: 0; }

.sidebar-scroll > * {
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

.sidebar-section {
    position: relative;
    z-index: 0;
    display: grid;
    gap: 8px;
    padding: var(--sidebar-section-padding) var(--sidebar-shell-gutter);
    border: 0;
    border-radius: var(--sidebar-section-radius);
    background: var(--sidebar-ladder-section-bg);
    overflow: visible;
}

.sidebar-section:has([data-sidebar-combobox][data-open="true"]) { z-index: 3; }

.sidebar-section__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.sidebar-section__header > :is(h2, h3, h4) {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
    margin: 0;
    font-size: var(--sidebar-section-title-size);
    font-weight: 600;
    line-height: 1.34;
    color: var(--sidebar-ladder-title-color);
}

.sidebar-header__actions {
    --sidebar-header-action-border: var(--theme-border-subtle);
    --sidebar-header-action-border-hover: var(--theme-border-control);
    --sidebar-header-action-bg: color-mix(in srgb, var(--theme-surface-base) 88%, transparent);
    --sidebar-header-action-bg-hover: var(--theme-action-secondary-bg);
    --sidebar-header-action-color: var(--text-primary);
    --sidebar-header-action-color-hover: var(--theme-action-secondary-fg-hover);
}

.sidebar :is(.sidebar-section__header, .sidebar-header__actions) > .menu-button[data-sidebar-controls] {
    --menu-button-width: auto;
    --menu-button-min-height: 30px;
    --menu-button-padding: 0 10px;
    --menu-button-border: var(--sidebar-header-action-border);
    --menu-button-border-hover: var(--sidebar-header-action-border-hover);
    --menu-button-bg: var(--sidebar-header-action-bg);
    --menu-button-bg-hover: var(--sidebar-header-action-bg-hover);
    --menu-button-bg-active: var(--sidebar-header-action-bg-hover);
    --menu-button-color: var(--sidebar-header-action-color);
    --menu-button-color-hover: var(--sidebar-header-action-color-hover);
    --menu-button-font-size: var(--font-size-xs);
    --menu-button-font-weight: 400;
    width: auto;
    max-width: none;
    min-width: 0;
    align-self: center;
    white-space: nowrap;
    line-height: 1.2;
    flex: 0 0 auto;
}

.sidebar-header__actions > :is(.icon-button[data-sidebar-search-toggle], .icon-button[data-sidebar-reset-all]) {
    --button-icon-box-size: 30px;
    --button-chrome-bg: var(--sidebar-header-action-bg);
    --button-chrome-bg-hover: var(--sidebar-header-action-bg-hover);
    --button-chrome-bg-active: var(--sidebar-header-action-bg-hover);
    --button-chrome-border: var(--sidebar-header-action-border);
    --button-chrome-border-hover: var(--sidebar-header-action-border-hover);
    --button-chrome-color: var(--sidebar-header-action-color);
    --button-chrome-color-hover: var(--sidebar-header-action-color-hover);
    flex: 0 0 auto;
}
.sidebar-header__actions > .modal__close[data-sidebar-close] { flex: 0 0 auto; }
.sidebar-header__actions > .modal__close[data-sidebar-close] {
    --modal-close-bg: var(--sidebar-header-action-bg);
    --modal-close-border: 1px solid var(--sidebar-header-action-border);
    --modal-close-hover-bg: var(--sidebar-header-action-bg-hover);
    --modal-close-hover-border: var(--sidebar-header-action-border-hover);
    --modal-close-hover-color: var(--sidebar-header-action-color-hover);
}

.sidebar-section__body { display: grid; gap: 8px; }
.sidebar-nav-list { display: grid; gap: 4px; }
.sidebar :where(.menu-button, .field-control) { font-size: var(--sidebar-body-font-size); }
.sidebar :where(.menu-button) {
    --menu-button-min-height: var(--sidebar-control-height);
    --menu-button-padding: 0 var(--sidebar-button-padding-x);
    --menu-button-bg: var(--sidebar-control-surface-bg);
    --menu-button-bg-hover: var(--sidebar-control-surface-bg-hover);
    --menu-button-bg-active: var(--sidebar-control-surface-bg-active);
    --menu-button-border: var(--sidebar-control-surface-border);
    --menu-button-border-hover: var(--sidebar-control-surface-border-hover);
}

.sidebar [data-sidebar-search-item].is-filtered-out,
.sidebar [data-sidebar-section].is-mode-hidden { display: none !important; }
.sidebar [data-sidebar-search-item].is-search-match {
    outline: 1px solid var(--theme-border-focus);
    outline-offset: 2px;
    border-radius: var(--control-radius);
    background: color-mix(in srgb, var(--sidebar-ladder-item-bg) 84%, transparent);
}

[data-sidebar-section-nav] {
    display: flex;
    align-items: stretch;
    gap: 6px;
    width: 100%;
    min-width: 0;
    padding-inline: 0;
    padding-block: 1px 4px;
    box-sizing: border-box;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
}

[data-sidebar-section-nav]::-webkit-scrollbar {
    display: none;
}

[data-sidebar-section-nav-item] {
    --selection-control-transition-duration: 180ms;
    --selection-control-transition-ease: var(--motion-ease, ease);
    --button-transition-duration: var(--selection-control-transition-duration);
    --button-transition-ease: var(--selection-control-transition-ease);
    --chip-button-min-height: var(--sidebar-control-height);
    --chip-button-padding: 0 var(--sidebar-button-padding-x);
    --chip-button-font-size: var(--font-size-xs);
    --chip-button-font-weight: 400;
    --chip-button-bg: var(--sidebar-control-surface-bg);
    --chip-button-bg-hover: var(--sidebar-control-surface-bg-hover);
    --chip-button-border-color: var(--sidebar-control-surface-border);
    --chip-button-border-color-hover: var(--sidebar-control-surface-border-hover);
    --chip-button-bg-selected: var(--emphasis-action-nav-accent-bg);
    --chip-button-border-color-selected: var(--sidebar-control-surface-border);
    --chip-button-color-selected: var(--emphasis-action-nav-accent-color);
    --chip-button-padding: 6px 10px;
    width: auto;
    flex: 0 0 auto;
    min-width: 0;
    justify-content: center;
    text-align: center;
    white-space: nowrap;
    line-height: 1.2;
    scroll-snap-align: start;
}

[data-sidebar-section-nav-item]:first-child {
    margin-inline-start: var(--sidebar-shell-gutter);
}

[data-sidebar-section-nav-item]:last-child {
    margin-inline-end: var(--sidebar-shell-gutter);
}

.sidebar .field-stack { --field-stack-gap: 4px; }
.sidebar .field-stack--toggle { --field-stack-gap: 6px; }
.sidebar .field-stack,
.sidebar [data-sidebar-combobox],
.sidebar [data-sidebar-section-nav],
.sidebar [data-search-chip-group],
.sidebar [data-search-start-groups],
.sidebar .button-panel__actions,
.sidebar .button-rail,
.sidebar .checkbox-row,
.sidebar .menu-button,
.sidebar .field-control {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

.sidebar .app-button {
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

.sidebar .field-control {
    --field-control-height: var(--sidebar-field-height);
    --field-control-bg: var(--sidebar-control-surface-bg);
    --field-control-border: 1px solid var(--sidebar-control-surface-border);
}

.sidebar :is(.icon-button, .info-trigger:not(.menu-button)) { --button-icon-box-size: var(--sidebar-control-height); }
.sidebar .chip-button {
    --chip-button-min-height: var(--sidebar-control-height);
    --chip-button-padding: 0 var(--sidebar-button-padding-x);
    --chip-button-font-size: var(--sidebar-body-font-size);
}

.sidebar .app-button:not(.app-button--icon) {
    --app-button-height: var(--sidebar-control-height);
    --app-button-padding-x: var(--sidebar-button-padding-x);
}
.sidebar .button-panel__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    padding: 0;
}

.sidebar [data-search-chip-group],
.sidebar [data-search-start-groups] {
    width: 100%;
    min-width: 0;
}
.sidebar :is(.button-rail, .chip-alphabet, .chip-count) {
    border: 1px solid var(--sidebar-control-surface-border);
    background: var(--sidebar-control-surface-bg);
}

.sidebar .button-rail {
    --button-panel-padding: 4px;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 4px;
    padding: 4px;
    border-radius: var(--control-radius);
    overflow: hidden;
}

.sidebar .checkbox-row {
    --checkbox-row-min-height: var(--sidebar-field-height);
    --checkbox-row-padding-x: 12px;
    --checkbox-row-gap: 10px;
    --checkbox-row-bg: var(--sidebar-control-surface-bg);
    --checkbox-row-border: 1px solid var(--sidebar-control-surface-border);
    --checkbox-row-bg-checked: var(--control-selected-bg);
    --checkbox-row-border-checked: var(--control-selected-border);
    --checkbox-row-color-checked: var(--control-selected-color);
    --checkbox-box-border-checked: var(--control-selected-border);
    --checkbox-box-bg-checked: var(--control-selected-bg-hover);
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 10px;
    padding-block: 8px;
}

.sidebar .checkbox-row input[type="checkbox"] {
    grid-column: auto;
    flex: 0 0 auto;
    align-self: flex-start;
    margin-top: 2px;
}

.sidebar .checkbox-row__label {
    grid-column: auto;
    display: block;
    flex: 1 1 auto;
    min-width: 0;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.sidebar .search-presets-manager,
.sidebar .search-presets-section,
.sidebar .search-presets-selected { display: grid; gap: 6px; }
.sidebar .search-presets-section {
    padding-top: 10px;
    border-top: 1px solid var(--sidebar-ladder-item-border);
}

.sidebar .search-presets-section:first-child {
    padding-top: 0;
    border-top: 0;
}

.sidebar .search-presets-section__title,
.sidebar .search-presets-section__hint { margin: 0; }

.sidebar .search-presets-save-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: stretch;
    gap: 6px;
}

.sidebar .search-presets-save-row .field-control {
    flex: 1 1 auto;
}

.sidebar .search-presets-save-row .app-button {
    --app-button-height: var(--sidebar-field-height);
    flex: 0 0 auto;
    width: auto;
}

.sidebar .search-presets-actions {
    display: grid;
    gap: 8px;
}

.sidebar .search-presets-actions > .app-button {
    --app-button-height: var(--sidebar-control-height);
    width: 100%;
}

.sidebar .search-presets-actions-secondary {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.sidebar .search-presets-actions-secondary .app-button {
    --app-button-height: 28px;
    --app-button-padding-x: 10px;
    width: auto; flex: 0 0 auto; font-size: var(--font-size-xs); }

.sidebar .search-presets-rename-row { gap: 6px; padding-top: 8px; border-top: 1px solid var(--sidebar-ladder-item-border); }
.sidebar .search-presets-manager .button-panel__actions { gap: 6px; flex-wrap: wrap; }
.sidebar [data-search-chip-group] { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.sidebar [data-search-chip-group="start-secondary"] { margin-top: 6px; }
.sidebar [data-search-start-groups] { gap: 6px; }
.sidebar [data-search-chip-group] .chip-alphabet { width: auto; margin: 0; }
.sidebar .chip-alphabet {
    min-height: var(--sidebar-control-height);
    padding: 0 10px;
    border-radius: var(--control-radius);
    color: var(--theme-text-normal);
    gap: 6px;
    --chip-alphabet-selected-bg: var(--theme-state-selected-bg); --chip-alphabet-selected-border: var(--theme-state-selected-border);
    --chip-alphabet-selected-color: var(--theme-state-selected-color); --chip-alphabet-count-selected-bg: color-mix(in srgb, var(--theme-state-selected-bg) 82%, var(--sidebar-ladder-item-bg)); --chip-alphabet-count-selected-color: var(--theme-state-selected-color); }
.sidebar .alphabet-chip { width: auto; height: 30px; min-height: 30px; border-radius: var(--radius-round); }
.sidebar .chip-start { width: auto; min-height: var(--sidebar-control-height); padding: 0 12px; }
.sidebar .chip-count { gap: 4px; min-height: 20px; padding: 0 8px; }

.sidebar .chip-alphabet[aria-current]:not([aria-current="false"]) {
    border-color: var(--chip-alphabet-selected-border);
    background: var(--chip-alphabet-selected-bg);
    color: var(--chip-alphabet-selected-color); }

.sidebar .chip-alphabet[aria-current]:not([aria-current="false"]) .chip-count {
    border-color: color-mix(in srgb, var(--chip-alphabet-selected-border) 78%, transparent);
    background: var(--chip-alphabet-count-selected-bg);
    color: var(--chip-alphabet-count-selected-color); }

.sidebar-footer[data-sidebar-apply-mode="deferred"] { display: none; }
.sidebar-footer {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    align-items: center;
    padding-block: 8px var(--sidebar-shell-gutter);
    border-top: 1px solid var(--sidebar-ladder-rail-border);
    background: var(--sidebar-ladder-rail-bg);
}

.sidebar-footer .app-button { --app-button-height: var(--sidebar-field-height); }
.sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: var(--z-sidebar-backdrop);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--motion-duration-base) var(--motion-ease);
}

.sidebar-backdrop[data-open="true"] { opacity: 1; pointer-events: auto; }

@media (min-width: 960px) { .sidebar-backdrop { display: none; } }

@media (max-width: 959px) {
    .sidebar[data-sidebar] {
        --sidebar-shell-gutter: 14px;
        --sidebar-mobile-offset: 0;
        --sidebar-mobile-bottom: 0;
        position: fixed;
        z-index: var(--z-sidebar);
        top: 0;
        right: 0;
        bottom: 0;
        width: 100vw;
        max-width: 100vw;
        max-height: 100dvh;
        height: 100dvh;
        border-radius: 0;
        transform: translateX(100%);
        opacity: 0;
        pointer-events: none;
    }

    .sidebar[data-sidebar][data-open="true"] { transform: none; opacity: 1; pointer-events: auto; }
    .sidebar-footer[data-sidebar-apply-mode="deferred"] {
        display: grid;
        padding-block: 8px max(var(--sidebar-shell-gutter), env(safe-area-inset-bottom));
    }
}
@media (max-width: 640px) {
    .sidebar[data-sidebar] {
        --sidebar-shell-gutter: 12px;
        --sidebar-section-padding: 10px;
    }
}