/* Workspace shell and responsive header navigation */

#workspaceContainer {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr);
    flex: 1 1 auto;
    min-height: 0;
    height: auto;
    align-items: stretch;
    padding: 0;
    overflow: hidden;
    position: relative;
}

#workspaceContainer > .workspace-section {
    grid-column: 1;
    grid-row: 1;
    box-sizing: border-box;
    height: 100%;
    min-width: 0;
    padding: 38px 20px 20px;
    overflow-y: auto;
    overflow-x: hidden;
}

/* Project-style Workspace pages receive their visual end gap from the direct
   .projects-content child, so the outer shell must not duplicate it. */
#workspaceContainer > .workspace-section:has(> .projects-content) {
    padding-bottom: 0;
}

#workspaceContainer.full-bleed > .workspace-section {
    padding: 0;
    overflow: hidden;
}

body.workspace-view-active .main-container > .main-container-body > .main-container-header {
    border-bottom: 1px solid var(--border-color);
}

body.workspace-view-active .main-header-leading,
body.workspace-view-active .main-header-actions,
body.workspace-view-active .split-screen-main-header {
    display: none !important;
}

.workspace-header-shell {
    display: none;
    width: 100%;
    min-width: 0;
}

body.workspace-view-active .workspace-header-shell {
    display: grid;
    grid-template-columns: minmax(118px, 1fr) auto minmax(118px, 1fr);
    align-items: center;
    gap: 12px;
}

.workspace-header-end {
    min-width: 0;
}

.workspace-header-sidebar-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    color: var(--text-color-tertiary);
    background: transparent;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    visibility: hidden;
}

.workspace-header-sidebar-toggle svg {
    width: var(--svg-size);
    height: var(--svg-size);
}

body.sidebar-overlay-mode:not(.sidebar-open) .workspace-header-sidebar-toggle {
    visibility: visible;
}

@media (hover: hover) and (pointer: fine) {
    .workspace-header-sidebar-toggle:hover {
        color: var(--text-color);
        background: var(--hover);
    }
}

.workspace-header-sidebar-toggle:focus-visible,
.workspace-header-tab:focus-visible,
.workspace-header-mobile-option:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Desktop: borderless text tabs with a single active underline. */
.workspace-header-desktop-tabs {
    display: flex;
    min-width: 0;
    align-items: stretch;
    justify-content: center;
}

.workspace-header-tab {
    position: relative;
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    justify-content: center;
    padding: 0 9px;
    color: var(--text-color-tertiary);
    background: transparent;
    border: none;
    font-size: 14px;
    font-weight: 540;
    white-space: nowrap;
    cursor: pointer;
    transition: color 0.15s ease;
}

.workspace-header-tab::after {
    content: "";
    position: absolute;
    right: 9px;
    bottom: -8px;
    left: 9px;
    height: 2px;
    border-radius: 2px 2px 0 0;
    background: var(--primary-color);
    opacity: 0;
    transform: scaleX(0.55);
    transition: opacity 0.14s ease, transform 0.16s ease;
}

.workspace-header-tab.active {
    color: var(--text-color);
    font-weight: 640;
}

.workspace-header-tab.active::after {
    opacity: 1;
    transform: scaleX(1);
}

@media (hover: hover) and (pointer: fine) {
    .workspace-header-tab:hover:not(.active) {
        color: var(--text-color);
    }
}

/* Shared red-dot notification state. Workspace notification JavaScript adds
   this element to every navigation surface that represents Notifications. */
.notification-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 10px;
    height: 10px;
    background: #ef4444;
    border-radius: 50%;
    border: 2px solid var(--background);
    box-shadow: 0 2px 4px rgba(239, 68, 68, 0.4);
    animation: notification-pulse 2s ease-in-out infinite;
    pointer-events: none;
}

#sidebarWorkspace .notification-badge {
    top: 6px;
    right: 6px;
    width: 8px;
    height: 8px;
}

.workspace-header-tab > .notification-badge {
    top: 4px;
    right: 2px;
    width: 7px;
    height: 7px;
    border-width: 1px;
}

/* Mobile/compact: the current page title is the navigation trigger. */
.workspace-header-mobile {
    position: relative;
    display: none;
    justify-self: start;
}

.workspace-mobile-title-menu {
    position: absolute;
    top: calc(100% + 8px);
    inset-inline-start: 0;
    z-index: 1200;
    display: grid;
    width: min(230px, calc(100vw - 24px));
    max-height: min(420px, calc(100vh - 84px));
    padding: 5px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--surface-elevated, var(--background));
    box-shadow: var(--surface-elevated-shadow);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-4px);
    transition: opacity 0.12s ease, visibility 0.12s ease, transform 0.14s ease;
}

.workspace-mobile-title-menu.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

.workspace-header-mobile-option {
    position: relative;
    display: flex;
    width: 100%;
    min-height: 34px;
    align-items: center;
    padding: 6px 28px 6px 9px;
    color: var(--text-color-secondary);
    background: transparent;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    text-align: start;
    cursor: pointer;
}

.workspace-header-mobile-option.active {
    color: var(--text-color);
    font-weight: 630;
}

.workspace-header-mobile-option.active::after {
    content: "✓";
    position: absolute;
    inset-inline-end: 10px;
    color: var(--text-color-secondary);
    font-size: 11px;
}

.workspace-header-mobile-option > .notification-badge {
    top: 50%;
    right: 9px;
    width: 7px;
    height: 7px;
    border-width: 1px;
    transform: translateY(-50%);
}

.workspace-header-mobile-option.active > .notification-badge {
    right: 26px;
}

@media (hover: hover) and (pointer: fine) {
    .workspace-header-mobile-option:hover {
        color: var(--text-color);
        background: var(--hover);
    }
}

/* Switch based on the actual main-pane width, not only the browser viewport.
   This also handles a narrow pane beside Canvas or an open desktop sidebar. */
@container chat-layout (max-width: 1000px) {
    body.workspace-view-active .workspace-header-shell {
        grid-template-columns: 34px auto minmax(0, 1fr);
        gap: 4px;
    }

    .workspace-header-desktop-tabs {
        display: none;
    }

    .workspace-header-mobile {
        display: block;
    }
}

/* Viewport fallback for compact browsers that do not apply container queries. */
@media (max-width: 768px) {
    body.workspace-view-active .workspace-header-shell {
        grid-template-columns: 34px auto minmax(0, 1fr);
        gap: 4px;
    }

    .workspace-header-desktop-tabs {
        display: none;
    }

    .workspace-header-mobile {
        display: block;
    }

    #workspaceContainer > .workspace-section {
        padding: 24px 14px 0;
        scroll-padding-bottom: var(--projects-page-end-gap, 20px);
    }

    #workspaceContainer:not(.full-bleed) > .workspace-section > * {
        flex-shrink: 0;
    }

    #workspaceContainer.full-bleed > .workspace-section {
        padding: 0;
        scroll-padding-bottom: 0;
    }
}

/* Compact Canvas panes always use the title menu even in a wide viewport. */
body.canvas-markdown-compact-main-layout.workspace-view-active .workspace-header-shell {
    grid-template-columns: 34px auto minmax(0, 1fr);
    gap: 4px;
}

body.canvas-markdown-compact-main-layout.workspace-view-active .workspace-header-desktop-tabs {
    display: none;
}

body.canvas-markdown-compact-main-layout.workspace-view-active .workspace-header-mobile {
    display: block;
}

body.canvas-markdown-compact-main-layout.workspace-view-active #workspaceContainer > .workspace-section {
    padding: 24px 14px 0;
}

body.canvas-markdown-compact-main-layout.workspace-view-active #workspaceContainer.full-bleed > .workspace-section {
    padding: 0;
}

@media (prefers-reduced-motion: reduce) {
    .workspace-header-tab,
    .workspace-header-tab::after,
    .workspace-mobile-title-menu {
        transition: none;
    }
}
.workspace-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    height: 100%;
    min-height: 0;
}

.workspace-skills-header {
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 16px;
}

.workspace-skills-header .projects-header-title {
    margin-bottom: 4px;
}

.projects-header-subtitle {
    margin: 0;
    font-size: 14px;
    color: var(--text-color-secondary);
}

/* Shared workspace sidebars: Files, Todos, Notes */
:where(.files-workspace, .todos-workspace, .notes-workspace) {
    gap: 0;
}

:where(.files-sidebar, .todos-sidebar, .notes-sidebar) {
    width: 280px;
    min-width: 220px;
    max-width: 320px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
    overflow: hidden;
}

:where(.files-sidebar-header, .todos-sidebar-header, .notes-sidebar-header) {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px;
    border-bottom: 1px solid var(--border-color);
}

:where(.files-sidebar-title, .todos-sidebar-title, .notes-sidebar-title) {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

.notes-sidebar-header-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

:where(.files-sidebar-list, .todos-sidebar-list, .notes-sidebar-list) {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

:where(.files-sidebar-list, .todos-sidebar-list, .notes-sidebar-list)::-webkit-scrollbar {
    width: 6px;
}

:where(.files-sidebar-list, .todos-sidebar-list, .notes-sidebar-list)::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.workspace-infinite-scroll-sentinel {
    min-height: 20px;
    width: 100%;
    flex: 0 0 20px;
    position: relative;
}

.workspace-infinite-scroll-sentinel::after {
    content: '';
    position: absolute;
    inset: 50% auto auto 50%;
    width: 14px;
    height: 14px;
    margin: -7px 0 0 -7px;
    border: 2px solid color-mix(in srgb, var(--text-color-tertiary) 28%, transparent);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.75s linear infinite;
}

.notes-file-picker-sentinel {
    grid-column: 1 / -1;
}

@media (prefers-reduced-motion: reduce) {
    .workspace-infinite-scroll-sentinel::after {
        animation: none;
    }
}

:where(.files-sidebar-item, .todos-list-item) {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.1s ease;
    margin-bottom: 2px;
    position: relative;
    color: var(--text-color);
}

.todos-list-item {
    padding: 0;
}

.todos-list-item-select-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1 1 auto;
    width: 100%;
    min-width: 0;
    padding: 10px 12px;
    border: 0;
    border-radius: 10px;
    background: transparent;
    color: inherit;
    font: inherit;
    text-align: left;
    cursor: pointer;
}

.todos-list-item:not(.todos-marked-list-item) > .todos-list-item-select-btn {
    padding-inline-end: 48px;
}

@media (hover: hover) and (pointer: fine) {
    :where(.files-sidebar-item, .todos-list-item):hover {
        background: var(--hover);
    }
}

:where(.files-sidebar-item, .todos-list-item):focus {
    outline: none;
}

:where(.files-sidebar-item, .todos-list-item):focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: -2px;
}

.todos-list-item-select-btn:focus {
    outline: none;
}

.todos-list-item-select-btn:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: -2px;
}

:where(.files-sidebar-item.active, .todos-list-item.active) {
    background: var(--primary-light);
}

:where(.files-sidebar-item.active .files-sidebar-item-icon:not(.has-color), .files-sidebar-item.active .files-sidebar-item-name, .todos-list-item.active .todos-list-item-icon, .todos-list-item.active .todos-list-item-name) {
    color: var(--primary-color);
}

:where(.files-sidebar-item.active .files-sidebar-item-name, .todos-list-item.active .todos-list-item-name) {
    font-weight: 600;
}

:where(.files-sidebar-item-icon, .todos-list-item-icon) {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: var(--hover);
    color: var(--text-color-secondary);
    flex-shrink: 0;
}

:where(.files-sidebar-item-icon svg, .todos-list-item-icon svg) {
    width: 18px;
    height: 18px;
}

:where(.files-sidebar-item-name, .todos-list-item-name) {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-color);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}

:where(.files-sidebar-item-count, .todos-list-item-count) {
    font-size: 12px;
    color: var(--text-color-secondary);
    padding: 2px 8px;
    background: var(--hover);
    border-radius: 10px;
    text-align: center;
}

.workspace-control-panel {
    align-items: flex-start;
    gap: 10px;
    width: 100%;
    display: grid;
    grid-template-columns: minmax(220px, 2fr) repeat(auto-fit, minmax(170px, 1fr));
    margin-bottom: 4px;
}

/* When a workspace control panel has only two children (e.g. bookmarks: filter + sort),
   treat them equally so the layout is balanced. */
.workspace-control-panel:has(> :nth-child(2):last-child) {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (max-width: 768px) {
    .workspace-control-panel,
    .workspace-control-panel:has(> :nth-child(2):last-child) {
        grid-template-columns: 1fr;
    }
}

.workspace-control-field {
    display: flex;
    flex-direction: column;
    gap: 7px;
    min-width: 0;
}

.workspace-control-select {
    width: 100%;
    min-width: 0;
    max-width: none;
    font-size: 14px;
}

.workspace-control-select .select-trigger {
    min-height: 40px;
    padding: 0 40px 0 14px;
    border-radius: 10px;
    background: var(--background);
    font-size: 14px;
}

.workspace-control-select .select-trigger span {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.workspace-control-select .select-options {
    max-height: 240px;
    overflow-y: auto;
}

.workspace-control-select .select-option {
    padding: 10px 14px;
}

.workspace-control-input {
    width: 100%;
    min-width: 0;
    height: 40px;
    padding: 0 14px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--background);
    color: var(--text-color);
    font: inherit;
    font-size: 14px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.workspace-control-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px transparent;
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary-color) 18%, transparent);
}

.workspace-control-input::placeholder {
    color: var(--text-color-secondary);
}

.workspace-control-search {
    position: relative;
    display: flex;
    align-items: center;
    min-width: 0;
}

/*
 * The Skills list owns this row instead of depending on chat-search CSS. Keep
 * its established dimensions here while the shared workspace controls provide
 * positioning and focus behavior.
 */
.workspace-skills-search-row {
    margin-bottom: 20px;
}

.workspace-skills-search-row .input-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 40px;
    padding: 0 14px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.workspace-skills-search-row .input-wrapper svg {
    width: 18px;
    height: 18px;
    color: var(--text-color-secondary);
}

.workspace-skills-search-row input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text-color);
    font-size: 16px;
}

.workspace-skills-search-row input::placeholder {
    color: var(--text-color-secondary);
}

.workspace-skills-search-row .clear-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    color: var(--text-color-secondary);
    transition: background-color 0.2s ease;
}

@media (hover: hover) and (pointer: fine) {
    .workspace-skills-search-row .clear-button:hover {
        background-color: var(--hover);
    }
}

.workspace-control-search .workspace-control-input {
    padding-left: 40px;
}

.workspace-control-icon {
    position: absolute;
    left: 13px;
    width: 18px;
    height: 18px;
    color: var(--text-color-secondary);
    pointer-events: none;
}

.workspace-control-clear {
    position: absolute;
    right: 7px;
}

.workspace-skills-footer {
    padding: 16px;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.workspace-skills-footer-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* Shared empty and validation states used by multiple Workspace features. */
.workspace-empty-grid {
    width: 100%;
}

@media (max-width: 480px) {
    .workspace-notifications-empty {
        padding: 48px 16px;
    }
}

.skills-input-hint {
    margin: 4px 0 0;
    font-size: 12px;
    color: var(--text-color-secondary);
}

.skills-input-error {
    margin: 6px 0 0;
    font-size: 12px;
    color: var(--error-color, #e53935);
    display: none;
    animation: skillsErrorFadeIn 0.2s ease;
}

.skills-input-error.visible {
    display: block;
}

.field-validation-error {
    margin: 6px 0 0;
    font-size: 12px;
    color: var(--error-color, #e53935);
    display: none;
}

.field-validation-error.visible {
    display: block;
}

.projects-create-input.input-error,
.projects-create-textarea.input-error,
.memories-editor-textarea.input-error,
.memories-import-textarea.input-error,
.todos-list-editor-input.input-error,
.todos-list-editor-textarea.input-error,
.files-edit-modal-input.input-error,
.files-folder-modal-input.input-error {
    border-color: var(--error-color, #e53935) !important;
    box-shadow: 0 0 0 1px var(--error-color, #e53935);
}

.projects-create-input.input-error:focus,
.projects-create-textarea.input-error:focus,
.memories-editor-textarea.input-error:focus,
.memories-import-textarea.input-error:focus,
.todos-list-editor-input.input-error:focus,
.todos-list-editor-textarea.input-error:focus,
.files-edit-modal-input.input-error:focus,
.files-folder-modal-input.input-error:focus {
    border-color: var(--error-color, #e53935) !important;
    box-shadow: 0 0 0 2px rgba(229, 57, 53, 0.2);
}

.projects-create-input-group.has-error .skills-input-hint,
.todos-list-editor-field.has-error .skills-input-hint,
.files-edit-modal-field.has-error .skills-input-hint,
.files-folder-modal-field.has-error .skills-input-hint {
    display: none;
}