@import url('open-iconic/font/css/open-iconic-bootstrap.min.css');

html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

a, .btn-link {
    color: #0366d6;
}

.btn-primary {
    color: #fff;
    background-color: #1b6ec2;
    border-color: #1861ac;
}

.content {
    padding-top: 1.1rem;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid red;
}

.validation-message {
    color: red;
}

#blazor-error-ui {
    background: grey;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
}

/* global CSS file */
.dropzone {
    position: relative;
    border: 2px dashed rgba(0,0,0,0.15);
    border-radius: 8px;
    padding: 24px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: transparent;
    color: white;
}

    .dropzone label {
        z-index: 1;
        pointer-events: none;
        color: white;
    }

    .dropzone input[type="file"] {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        opacity: 0;
        cursor: pointer;
        z-index: 2;
    }

.dropzone-active {
    border-color: #3399ff;
    background: rgba(51, 153, 255, 0.06);
}


.rich-text-content ol,
.rich-text-content ul {
    margin: 0 0 1rem;
    padding-left: 1.5rem;
}

.rich-text-content li {
    list-style-position: outside;
}

.rich-text-content li > .ql-ui {
    display: none;
}

.rich-text-content li[data-list="bullet"]::marker {
    content: "•  ";
}

.rich-text-content li[data-list="bullet"].ql-indent-1 {
    margin-left: 1.5rem;
}

.rich-text-content li[data-list="bullet"].ql-indent-1::marker {
    content: "◦  ";
}

.rich-text-content li[data-list="bullet"].ql-indent-2 {
    margin-left: 3rem;
}

.rich-text-content li[data-list="bullet"].ql-indent-2::marker {
    content: "▪  ";
}

.rich-text-content li[data-list="ordered"]::marker {
    content: counter(list-item) ". ";
}

/* ===== Notes page layout (global because scoped CSS does not reach RenderFragment-emitted elements) ===== */

/* On the Notes page, turn the main-content area into a flex column so the shell
   fills exactly the height left under the heading — no hardcoded viewport math,
   which left a dead gap at short resolutions (e.g. 1366x768). */
.mud-main-content:has(.notes-shell) {
    display: flex;
    flex-direction: column;
    height: 100vh;   /* fallback */
    height: 100dvh;
    min-height: 0;
    overflow: hidden;
}

.notes-shell {
    display: flex !important;
    flex-direction: row !important;
    align-items: stretch !important;
    justify-content: flex-start !important;
    flex: 1 1 auto;
    min-height: 0;
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    gap: 4px;
    padding: 6px;
    scrollbar-gutter: stable;
    background: #0d1117 !important; /* outer shell — shows in the gap between columns */
}

/* Tweak these three to recolor the columns. */
.notes-shell .notes-rail {
    background: #0a0d12; /* column 1 */
}
.notes-shell .notes-browser {
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    justify-content: flex-start !important;
    align-self: stretch !important;
    overflow: hidden;
    box-sizing: border-box;
    flex: 0 0 auto !important;
    background: #11151d;
}

.notes-shell .notes-browser-search {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 6px;
    padding: 4px 8px;
    min-height: 56px;
    flex: 0 0 auto !important;
    box-sizing: border-box;
    background: #151a24;
}

.notes-shell .notes-browser-actions {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 4px;
    min-height: 40px;
    flex: 0 0 auto !important;
    box-sizing: border-box;
    background: #11151d;
}

.notes-shell .notes-browser-actions .rail-toolbar,
.notes-shell .notes-browser-actions .middle-toolbar {
    min-height: 40px;
    align-items: center !important;
    padding: 0 8px;
}

.notes-shell .notes-browser-body {
    display: flex !important;
    flex-direction: row !important;
    align-items: stretch !important;
    gap: 4px;
    flex: 1 1 auto !important;
    min-height: 0 !important;
    overflow: hidden;
}

.notes-shell .notes-middle {
    background: #1f1f1f; /* column 2 */
}
.notes-shell .notes-editor {
    background: #1c1c1c; /* notes / editor area */
}

.notes-shell .notes-rail,
.notes-shell .notes-middle,
.notes-shell .notes-editor {
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    justify-content: flex-start !important;
    align-self: stretch !important;
    overflow: hidden;
    box-sizing: border-box;
}

.notes-shell .notes-rail {
    width: 260px;
    min-width: 220px;
    border-right: 1px solid rgba(255,255,255,0.08);
    padding-right: 6px;
}

.notes-shell .rail-toolbar {
    display: flex !important;
    flex-direction: row !important;
    align-items: flex-end !important;
    gap: 4px;
    padding: 4px 8px;
    min-height: 56px;
    flex: 0 0 auto !important;
    box-sizing: border-box;
}

.notes-shell .rail-scroll {
    display: block !important;
    flex: 1 1 auto !important;
    min-height: 0 !important;
    overflow-y: auto;
    padding: 4px 0 16px 0;
}

.notes-shell .rail-section,
.notes-shell .rail-group-header {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 8px;
    cursor: pointer;
    user-select: none;
    border-radius: 4px;
    margin: 2px 4px;
    border-left: 3px solid transparent;
    min-height: 36px;
}

.notes-shell .rail-section:hover,
.notes-shell .rail-group-header:hover {
    background: rgba(255,255,255,0.05);
}

.notes-shell .rail-selected {
    background: rgba(63, 81, 181, 0.32) !important;
    border-left-color: #7986cb !important;
    font-weight: 600;
}

.notes-shell .rail-section,
.notes-shell .rail-group-header,
.notes-shell .note-row {
    position: relative;
}

/* Note-drop highlight on rail rows (CanDropClass of the per-section OnlyZones). */
.notes-shell .rail-drop-into {
    outline: 2px solid #7986cb !important;
    outline-offset: -2px;
    background: rgba(121, 134, 203, 0.28) !important;
}

/* NoDropClass: a group hovering over another group's child zone can't land there. */
.notes-shell .rail-no-drop {
    outline: 2px dashed rgba(244, 67, 54, 0.55) !important;
    outline-offset: -2px;
}

/* Rail drag grips */
.notes-shell .rail-grip-icon {
    opacity: .45;
    flex-shrink: 0;
}

/* Rail reorder placeholders (root zone + group child zones). */
.notes-shell .notes-rail .mud-dropitem-placeholder {
    min-height: 32px;
    padding: 0 !important;
    border: 1px dashed #7986cb;
    border-radius: 4px;
    margin: 2px 4px;
}

.notes-shell .rail-name {
    flex: 1 1 auto;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.92rem;
}

.notes-shell .rail-name-edit {
    flex: 1 1 auto;
    display: inline-flex;
    align-items: center;
    margin-left: 4px;
}

.notes-shell .rail-kebab {
    display: inline-flex;
    align-items: center;
    margin-left: auto;
}

.notes-shell .rail-group {
    margin: 4px 0;
}

/* Group child drop zone: indented like the old children wrapper; min-height keeps an
   empty (but expanded) group droppable — its reorder placeholder needs somewhere to land. */
.notes-shell .rail-group-children {
    display: block;
    min-height: 14px;
    padding-left: 18px;
    border-left: 1px solid rgba(255,255,255,0.06);
    margin-left: 12px;
}

/* Root rail zone fills the scroll area so end-of-list drops land. */
.notes-shell .rail-root-dropzone {
    display: block;
    min-height: 24px;
}

.notes-shell .rail-section-system {
    opacity: 0.85;
    font-style: italic;
}

.notes-shell .notes-middle {
    width: 320px;
    min-width: 260px;
    border-right: 1px solid rgba(255,255,255,0.08);
    padding-right: 6px;
}

.notes-shell .middle-toolbar {
    display: flex !important;
    flex-direction: row !important;
    align-items: flex-end !important;
    gap: 6px;
    padding: 4px 8px;
    min-height: 56px;
    flex: 0 0 auto !important;
    box-sizing: border-box;
}

.notes-shell .notes-browser-body > .notes-middle > .middle-toolbar,
.notes-shell .notes-browser-body > .notes-middle > .middle-toolbar + .mud-divider {
    display: none !important;
}

.notes-shell .middle-scroll {
    display: block !important;
    flex: 1 1 auto !important;
    min-height: 0 !important;
    overflow-y: auto;
}

.notes-shell .note-row {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 10px 10px;
    cursor: pointer;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    border-left: 3px solid transparent;
    min-height: 40px;
    user-select: none;
    -webkit-user-select: none;
}

/* The middle column's MudBlazor drop zone: fill the scroll area so end-of-list drops land. */
.notes-shell .notes-middle-dropzone {
    display: block;
    min-height: 40px;
}

/* Row content inside a rail section's note-drop OnlyZone — replicates the row's flex layout. */
.notes-shell .rail-note-target {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1 1 auto;
    min-width: 0;
}

/* Reorder placeholder for note rows (override the chunky pa-4 default). */
.notes-shell .middle-scroll .mud-dropitem-placeholder {
    min-height: 32px;
    padding: 0 !important;
    border: 1px dashed #7986cb;
    border-radius: 4px;
    margin: 2px 4px;
}

/* EbookHighlight notes aren't draggable (ItemDisabled) — don't gray them out. */
.notes-shell .note-item-static {
    cursor: default;
    opacity: 1;
}

/* Safety net: rows use MudDragHandle grips, so the item wrapper itself should never be
   draggable. If a row ever ends up whole-draggable again, keep it scrollable by touch
   (MudBlazor's default touch-action:none would freeze the list). The grip keeps its own
   touch-action:none via MudBlazor's .mud-drag-handle rule, so handle-drags still work. */
.notes-shell .mud-drop-item[draggable="true"],
.tasks-shell .mud-drop-item[draggable="true"],
.audio-page .mud-drop-item[draggable="true"] {
    touch-action: pan-y;
}

/* Drag-handle grips: pad the hit area for touch without shifting the row layout. */
.tasks-shell .row-drag-handle,
.notes-shell .row-drag-handle,
.audio-page .row-drag-handle {
    padding: 6px;
    margin: -6px;
    flex-shrink: 0;
}

.notes-shell .note-drag-icon {
    opacity: .45;
    flex-shrink: 0;
}

.notes-shell .note-row:hover {
    background: rgba(255,255,255,0.05);
}

.notes-shell .note-selected {
    background: rgba(63, 81, 181, 0.32) !important;
    border-left-color: #7986cb !important;
    font-weight: 600;
}

/* Audio playlist reorder uses MudBlazor drag & drop (MudDropContainer/MudDropZone). */
.audio-page .playlist-entry-row {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

/* Unresolved rows aren't draggable (ItemDisabled) — keep them looking normal, not grayed. */
.audio-page .playlist-entry-static {
    cursor: default;
    opacity: 1;
}

/* Reorder placeholder shown while dragging an entry (override the chunky pa-4 default). */
.audio-page .mud-dropitem-placeholder {
    min-height: 40px;
    padding: 0 !important;
    border: 1px dashed #7986cb;
    border-radius: 4px;
    margin: 2px 4px;
}

.notes-shell .note-name {
    flex: 1 1 auto;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    -webkit-user-drag: none;
}

.notes-shell .notes-editor {
    /* Shrinkable down to min-width so narrow viewports squeeze the editor
       before falling back to the shell's horizontal scrollbar. */
    flex: 1 1 520px !important;
    min-width: 420px;
    padding-left: 6px;
}

.notes-shell .editor-toolbar {
    display: flex !important;
    flex-direction: row !important;
    /* Wrap based on the editor's own width, not a viewport media query — the
       fixed-width rail/middle columns can squeeze the editor at any resolution. */
    flex-wrap: wrap;
    align-items: center !important;
    gap: 8px;
    padding: 4px 8px;
    min-height: 56px;
    flex: 0 0 auto !important;
    box-sizing: border-box;
}

.notes-shell .editor-status {
    font-size: 0.8rem;
    min-width: 110px;
    text-align: right;
}

.notes-shell .editor-body {
    display: block !important;
    flex: 1 1 auto !important;
    min-height: 0 !important;
    overflow: auto;
    padding: 8px;
}

.notes-shell .empty-editor {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-style: italic;
}

.notes-shell .rail-chevron {
    display: inline-flex;
    align-items: center;
    cursor: pointer;
    padding: 2px;
    margin-right: 2px;
    border-radius: 3px;
}

.notes-shell .rail-chevron:hover {
    background: rgba(255,255,255,0.12);
}

/* Force MudDivider inside a Notes column (or popout) to a 1px line — without
   this it stretches to fill remaining vertical space and creates a huge gap. */
.notes-shell hr.mud-divider,
.notes-popout-shell hr.mud-divider {
    flex: 0 0 auto !important;
    height: 1px !important;
    min-height: 0 !important;
    max-height: 1px !important;
    margin: 0 !important;
    padding: 0 !important;
    border-width: 1px 0 0 0 !important;
    box-sizing: border-box !important;
    align-self: stretch !important;
}

/* Custom rounded-tab SVG icons for sections and section groups.
   fill="currentColor" makes the tint follow the CSS color property,
   so changing color is just a matter of overriding the color rule. */
.notes-shell .rail-section-icon,
.notes-shell .rail-group-icon {
    color: #4a90e2; /* default tab color; override per-row via inline style if needed */
    flex-shrink: 0;
    display: inline-block;
}

.notes-shell .rail-group-icon {
    color: #9aa0a6; /* neutral; section groups never participate in the color palette */
}

/* Column resize handles (column 1 + column 2). Thin transparent strip at the right edge
   that highlights on hover; drag changes the column width. */
.notes-shell .col-resize-handle {
    position: absolute;
    top: 0;
    right: 0;
    width: 6px;
    height: 100%;
    cursor: ew-resize;
    z-index: 20;
    background: transparent;
    user-select: none;
}

.notes-shell .col-resize-handle:hover,
.notes-shell .col-resize-handle.resizing {
    background: rgba(121, 134, 203, 0.4);
}

/* The columns must be position: relative so the absolute handle anchors correctly. */
.notes-shell .notes-rail,
.notes-shell .notes-middle {
    position: relative;
}

/* Read-only note badge in the notes list. */
.notes-shell .note-readonly-badge {
    color: #9aa0a6;
    flex-shrink: 0;
    opacity: 0.85;
}

/* Read-only visual cues for the body editor. Input is actually blocked by
   MudHtmlEditor.ReadOnly (which calls Quill's enable(false)); these styles
   just reinforce the read-only feel without breaking scroll. */
.notes-shell .editor-body-readonly .ql-editor {
    cursor: default;
    caret-color: transparent;
}

@media (max-width: 900px) {
    .notes-shell {
        padding: 4px;
        gap: 4px;
    }
}

@media (max-width: 600px) {
    .mud-main-content:has(.notes-shell) {
        padding-left: 8px !important;
        padding-right: 8px !important;
    }

    .notes-shell {
        padding: 2px;
        gap: 2px;
    }

    .notes-shell .notes-browser-body {
        gap: 2px;
    }

    .notes-shell .editor-toolbar {
        gap: 6px;
        padding: 4px 6px;
    }

    .notes-shell .editor-body {
        padding: 6px;
    }
}

/* ===== Notes mobile: editor owns the screen; rail+middle become a drill-down slide-over.
   Same DOM as desktop (both drag & drop containers keep working) — only re-positioned. ===== */

.notes-mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1299;
}

@media (min-width: 960px) {
    .notes-mobile-overlay {
        display: none;
    }
}

@media (max-width: 959.98px) {
    /* Editor takes the full shell width (overrides the desktop flex-basis rules). */
    .notes-shell .notes-editor {
        flex: 1 1 100% !important;
        flex-basis: auto !important;
        width: 100%;
        min-width: 0;
    }

    /* The browser column becomes a fixed slide-over panel (inline px width overridden). */
    .notes-shell .notes-browser {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: min(92vw, 400px) !important;
        z-index: 1300;
        transform: translateX(-105%);
        transition: transform .18s ease-out;
        box-shadow: 4px 0 16px rgba(0,0,0,0.5);
    }

    .notes-shell .notes-browser.mobile-open {
        transform: translateX(0);
    }

    /* Drill-down: one pane at a time, full panel width. Pane 1 = rail, pane 2 = notes. */
    .notes-shell .notes-browser.mobile-pane-rail .notes-middle,
    .notes-shell .notes-browser.mobile-pane-rail .notes-browser-actions .middle-toolbar {
        display: none !important;
    }

    .notes-shell .notes-browser.mobile-pane-notes .notes-rail,
    .notes-shell .notes-browser.mobile-pane-notes .notes-browser-actions .rail-toolbar {
        display: none !important;
    }

    /* Panes and their toolbars stretch to the panel (inline px widths overridden). */
    .notes-shell .notes-rail,
    .notes-shell .notes-middle,
    .notes-shell .notes-browser-actions .rail-toolbar,
    .notes-shell .notes-browser-actions .middle-toolbar {
        width: 100% !important;
    }

    /* No column resizing in the slide-over. */
    .notes-shell .col-resize-handle {
        display: none;
    }
}

/* Match the Save button height to the Name textfield (Outlined + Dense ≈ 40px). */
.notes-shell .editor-toolbar .save-button {
    height: 40px;
    min-height: 40px;
    padding-top: 0;
    padding-bottom: 0;
}

.notes-shell .editor-toolbar .editor-name-field {
    flex: 1 1 auto;
    min-width: 220px;
    max-width: none;
}

.notes-shell .editor-toolbar .editor-last-modified-field {
    flex: 0 0 220px;
    min-width: 190px;
}

@media (max-width: 900px) {
    .notes-shell .editor-toolbar {
        align-items: flex-start !important;
    }

    .notes-shell .editor-toolbar .editor-name-field {
        flex: 1 1 170px;
        min-width: 140px;
    }

    .notes-shell .editor-toolbar .editor-last-modified-field {
        flex: 1 1 170px;
        min-width: 150px;
    }

    .notes-shell .editor-toolbar .save-button,
    .notes-shell .editor-toolbar .mud-icon-button {
        flex: 0 0 auto;
    }

    .notes-shell .editor-status {
        flex: 1 1 100px;
        min-width: 0;
        text-align: left;
    }
}

@media (max-width: 600px) {
    .notes-shell .editor-toolbar .editor-name-field,
    .notes-shell .editor-toolbar .editor-last-modified-field {
        flex: 0 0 100%;
        width: 100%;
        min-width: 100%;
        max-width: 100%;
    }
}

/* Popout window: edge-to-edge editor only, no rail / middle column. */
.notes-popout-shell {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background: #1c1c1c;
    color: var(--mud-palette-text-primary, #e0e0e0);
}

.notes-popout-shell .editor-toolbar {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    min-height: 56px;
    flex: 0 0 auto;
}

.notes-popout-shell .editor-body {
    flex: 1 1 auto;
    min-height: 0;
    overflow: auto;
    padding: 8px;
}

.notes-popout-shell .editor-body-readonly .ql-editor {
    cursor: default;
    caret-color: transparent;
}

.notes-popout-shell .save-button {
    height: 40px;
    min-height: 40px;
    padding-top: 0;
    padding-bottom: 0;
}

/* Placeholder shown in the main window while the note is open in a popup. */
.notes-shell .popout-placeholder {
    flex-direction: column;
    text-align: center;
    gap: 4px;
}

/* Popout window: strip the app bar, nav drawer, and any layout padding. */
body.notes-popout-active .mud-appbar,
body.notes-popout-active .mud-drawer,
body.notes-popout-active .mud-drawer-container,
body.notes-popout-active .mud-overlay {
    display: none !important;
}

body.notes-popout-active .mud-main-content {
    padding: 0 !important;
    margin: 0 !important;
}

body.notes-popout-active .mud-layout {
    height: 100vh !important;
}

body.notes-popout-active {
    overflow: hidden;
}

body.notes-popout-active.notes-quick-active {
    overflow-x: hidden !important;
    overflow-y: auto !important;
}

body.notes-popout-active.notes-quick-active .mud-layout {
    height: auto !important;
    min-height: 100dvh !important;
}

/* Ebook pure reader mode: center-tap in nav mode hides app and reader chrome. */
html.reader-pure-active,
body.reader-pure-active {
    background: #1e1e1e !important;
    height: 100%;
    margin: 0;
    overflow: hidden;
    overscroll-behavior: none;
}

body.reader-pure-active .mud-appbar,
body.reader-pure-active .mud-drawer,
body.reader-pure-active .mud-drawer-container {
    display: none !important;
}

body.reader-pure-active .mud-main-content {
    position: fixed !important;
    inset: 0 !important;
    z-index: 1200;
    padding: 0 !important;
    margin: 0 !important;
    width: 100vw !important;
    max-width: 100vw !important;
    height: var(--sx-reader-viewport-height, 100vh) !important;
    height: var(--sx-reader-viewport-height, 100dvh) !important;
    min-height: 0 !important;
    background: #1e1e1e !important;
    overflow: hidden;
}

body.reader-pure-active .mud-layout {
    height: var(--sx-reader-viewport-height, 100vh) !important;
    height: var(--sx-reader-viewport-height, 100dvh) !important;
    background: #1e1e1e !important;
    overflow: hidden;
}

.audio-page .audio-main-grid {
    align-items: stretch;
}

.audio-page .audio-main-grid > .mud-grid-item {
    display: flex;
    flex-direction: column;
}

.audio-page .audio-browser-card {
    box-sizing: border-box;
    width: 100%;
    height: 100%;
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.audio-page .audio-browser-tabs,
.audio-page .audio-browser-tabs .mud-tabs-panels,
.audio-page .audio-browser-tabs .mud-tab-panel,
.audio-page .audio-tab-stack {
    min-height: 0;
}

.audio-page .audio-browser-tabs {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    height: 100%;
}

.audio-page .audio-browser-tabs .mud-tabs-panels {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    height: 100%;
    min-height: 0;
    overflow: hidden;
}

/* MudBlazor 9 no longer applies MudTabPanel's Class to the panel content wrapper (it moved to the
   tab header button), and that wrapper now defaults to display:block; flex-grow:0 — so it no longer
   stretches to fill .mud-tabs-panels, which collapsed the inner scroll list to 0 height on desktop
   (tracks vanished ≥960px while mobile, which doesn't use this fill chain, was fine). Style the real
   wrapper class (.mud-tab-panel) directly so it fills and acts as the flex column the stack needs. */
.audio-page .audio-browser-tabs .mud-tab-panel {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    height: 100%;
    min-height: 0;
    overflow: hidden;
}

.audio-page .audio-tab-stack {
    display: flex;
    flex-direction: column;
    height: 100%;
    flex: 1 1 auto;
    min-height: 0;
    overflow: hidden;
}

.audio-page .audio-tab-stack > :not(.audio-tab-scroll-list) {
    flex: 0 0 auto;
}

.audio-page .audio-player-card {
    box-sizing: border-box;
    width: 100%;
    overflow: visible;
}

.audio-page .audio-player-empty {
    min-height: 60vh;
}

.audio-page .audio-player-status-row {
    display: flex;
    align-items: center;
    align-content: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px;
    width: 100%;
    margin-top: 8px;
    line-height: 1;
}

.audio-page .audio-player-status-chips {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px;
    min-width: 0;
    max-width: 100%;
}

.audio-page .audio-player-speed-control {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
    min-width: 0;
}

.audio-page .audio-player-speed-menu,
.audio-page .audio-player-sleep-menu {
    font-size: .75rem;
}

.audio-page .audio-player-status-row .mud-button-root,
.audio-page .audio-player-status-row .mud-chip {
    align-self: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 28px;
    min-height: 28px;
    margin-top: 0;
    margin-bottom: 0;
}

.audio-page .audio-player-status-row .mud-chip {
    padding-top: 0;
    padding-bottom: 0;
}

.audio-page .audio-player-status-row .mud-icon-button {
    width: 28px;
    height: 28px;
    padding: 0;
}

.audio-page .audio-player-status-row .mud-menu .mud-button-root {
    height: 28px;
    min-height: 28px;
}

.audio-page .audio-player-status-row .mud-chip-content {
    display: inline-flex;
    align-items: center;
    line-height: 1;
}

.audio-page .audio-player-status-chips .mud-chip {
    max-width: 100%;
}

.audio-page .audio-player-status-chips .mud-chip-content {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}

.audio-page .audio-player-shortcuts-info {
    opacity: .72;
}

.audio-page .audio-track-search {
    width: 100%;
}

@media (min-width: 960px) {
    .audio-page .audio-track-search {
        max-width: calc(66.666667% - 6px);
    }
}

.audio-page .audio-player-controls {
    width: 100%;
    max-width: 100%;
    justify-content: center;
    flex-wrap: nowrap;
    /* Tighter vertical gap BETWEEN the two control rows (bookmark/offline + transport) so they
       read as a single control cluster. The breathing room the user asked for goes BELOW the
       transport row, between the last button and the volume slider — see audio-player-volume. */
}

/* Bigger touch targets across all viewports. Two rows of controls leaves room to size up
   without horizontal overflow. Default Size.Large in MudBlazor is ~40px button / 24px icon;
   we push to 56/28 on desktop and scale down on phones. */
.audio-page .audio-player-controls .mud-icon-button {
    width: 56px;
    height: 56px;
    padding: 12px;
}

.audio-page .audio-player-controls .mud-icon-root {
    font-size: 1.85rem;
}

.audio-page .audio-player-volume {
    width: min(240px, 100%);
    /* Extra breathing room between the last button row and the volume slider — the user
       perceives the transport controls as a separate "thing" from the volume, this gap
       reinforces it. */
    margin-top: 20px;
}

.audio-page .audio-tab-scroll-list {
    flex: 1 1 0;
    min-height: 0;
    max-height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
    scrollbar-gutter: stable;
}

@media (max-width: 959.95px) {
    .audio-page .audio-main-grid {
        align-items: stretch;
    }

    .audio-page .audio-main-grid > .mud-grid-item,
    .audio-page .audio-browser-card,
    .audio-page .audio-browser-tabs,
    .audio-page .audio-browser-tabs .mud-tabs-panels,
    .audio-page .audio-browser-tabs .mud-tab-panel,
    .audio-page .audio-tab-stack {
        height: auto;
        flex: 0 1 auto;
    }

    .audio-page .audio-main-grid > .mud-grid-item {
        width: 100%;
        max-width: 100%;
        flex-basis: 100%;
    }

    .audio-page .audio-browser-card,
    .audio-page .audio-player-card,
    .audio-page .audio-browser-tabs .mud-tabs-panels,
    .audio-page .audio-browser-tabs .mud-tab-panel,
    .audio-page .audio-tab-stack {
        overflow: visible;
    }

    .audio-page .audio-tab-scroll-list {
        flex: 0 1 auto;
        max-height: calc(60vh - 120px);
    }
}

@media (max-width: 600px) {
    .audio-page {
        padding-left: 8px !important;
        padding-right: 8px !important;
    }

    .audio-page .audio-player-controls {
        gap: 6px !important;
        justify-content: space-between;
    }

    .audio-page .audio-player-controls .mud-icon-button {
        width: 52px;
        height: 52px;
        padding: 10px;
        flex: 0 0 52px;
    }

    .audio-page .audio-player-controls .mud-icon-root {
        font-size: 1.7rem;
    }

    .audio-page .audio-player-volume {
        margin-top: 16px;
    }
}

@media (max-width: 390px) {
    .audio-page .audio-player-controls {
        gap: 2px !important;
    }

    .audio-page .audio-player-controls .mud-icon-button {
        width: 46px;
        height: 46px;
        padding: 8px;
        flex-basis: 46px;
    }

    .audio-page .audio-player-controls .mud-icon-root {
        font-size: 1.55rem;
    }

    .audio-page .audio-player-volume {
        margin-top: 14px;
    }
}

/* Note history dialog content fill. Replaces the now-obsolete MudDialog.ContentStyle
   (MudBlazor 9 prefers ContentClass + CSS). Global because MudDialog renders its content in the
   dialog provider's DOM, outside the component's scoped-CSS boundary. */
.note-history-dialog-content {
    height: 100%;
    padding-bottom: 8px;
}

/* Ebook add/edit-note dialog: a large (~90vw) two-column layout — highlighted-text reference on
   the left (25%), the note editor on the right (75%). Global for the same reason as above (dialog
   content renders outside the component's scoped CSS). The reference column stretches to the
   editor's height; the editor's textarea defines that height via min-height. */
.sx-note-dialog-content {
    width: min(90vw, 1400px);
    display: flex;
    gap: 16px;
    align-items: stretch;
}

.sx-note-dialog-ref {
    flex: 0 0 25%;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sx-note-dialog-ref-text {
    flex: 1 1 0;
    min-height: 0;
    overflow-y: auto;
    background: #1e1e1e;
    border: 1px solid #424242;
    border-radius: 4px;
    padding: 12px;
    color: #e0e0e0;
}

.sx-note-dialog-editor {
    flex: 1 1 75%;
    min-width: 0;
}

.sx-note-dialog-editor textarea {
    min-height: 60vh;
    resize: vertical;
}

/* On narrow/mobile viewports a 25% reference column is too cramped — stack the columns instead.
   Narrower than desktop so the dialog leaves margins (its padding is a bigger share of a phone's
   width), with the quote box given a real height (the stacked column would otherwise collapse it). */
@media (max-width: 700px) {
    .sx-note-dialog-content {
        flex-direction: column;
        width: min(85vw, 600px);
    }
    .sx-note-dialog-ref {
        flex: 0 0 auto;
    }
    .sx-note-dialog-ref-text {
        flex: 0 0 auto;
        min-height: 16vh;
        max-height: 26vh;
    }
    .sx-note-dialog-editor textarea {
        min-height: 38vh;
    }
}

/* ===================== Tasks page (multi-list shell) ===================== */
/* Mirrors the Notes rail UI language: same row metrics, hover, selection and
   resize-handle styling, but with MudBlazor drop-zone drag & drop for the rail. */

.tasks-shell .tasks-body {
    display: flex;
    align-items: stretch;
    overflow: hidden;
    min-height: calc(100vh - 230px);
}

.tasks-shell .tasks-rail {
    position: relative;
    display: flex;
    flex-direction: column;
    flex: 0 0 auto;
    min-width: 170px;
    border-right: 1px solid rgba(255,255,255,0.08);
    padding-right: 6px;
}

.tasks-shell .tasks-main {
    flex: 1 1 auto;
    min-width: 0;
    padding: 8px 12px;
    overflow-y: auto;
}

/* Desktop search: inline in the header row, right of the sort menu. The dense
   outlined MudTextField carries a top margin meant for forms — zero it so the
   field centers on the toolbar row. Mobile uses .tasks-search, stacked full width. */
.tasks-shell .tasks-search-inline {
    width: 300px;
    flex-shrink: 1;
    min-width: 120px;
}

.tasks-shell .tasks-search-inline .mud-input-control {
    margin-top: 0;
}

/* Active task rows: compact metrics so they match the dense completed table.
   Row height floor is the Dense+Small checkbox (28px); dnd doesn't need more. */
.tasks-shell .task-row {
    padding: 1px 8px;
    margin: 2px 0;
    border-left: 3px solid #7986cb;
    transition: border-left-color 0.15s ease;
}

/* Completed table: pull MudBlazor's dense 6px cell padding in further so
   completed rows sit at the same height as the active rows above. */
.tasks-shell .task-table .mud-table-row .mud-table-cell {
    padding-top: 2px;
    padding-bottom: 2px;
}

.tasks-shell .rail-toolbar,
.tasks-mobile-panel .rail-toolbar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    min-height: 44px;
    flex: 0 0 auto;
}

.tasks-shell .rail-title,
.tasks-mobile-panel .rail-title {
    text-transform: uppercase;
    letter-spacing: .04em;
    opacity: .8;
}

.tasks-shell .rail-scroll,
.tasks-mobile-panel .rail-scroll {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    padding: 4px 0 16px 0;
}

.tasks-shell .rail-section,
.tasks-mobile-panel .rail-section {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 8px;
    cursor: pointer;
    user-select: none;
    border-radius: 4px;
    margin: 2px 4px;
    border-left: 3px solid transparent;
    min-height: 36px;
}

.tasks-shell .rail-section:hover,
.tasks-mobile-panel .rail-section:hover {
    background: rgba(255,255,255,0.05);
}

.tasks-shell .rail-selected,
.tasks-mobile-panel .rail-selected {
    background: rgba(63, 81, 181, 0.32) !important;
    border-left-color: #7986cb !important;
    font-weight: 600;
}

.tasks-shell .rail-name,
.tasks-mobile-panel .rail-name {
    flex: 1 1 auto;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.92rem;
}

.tasks-shell .rail-name-edit,
.tasks-mobile-panel .rail-name-edit {
    flex: 1 1 auto;
    display: inline-flex;
    align-items: center;
    margin-left: 4px;
}

.tasks-shell .rail-kebab,
.tasks-mobile-panel .rail-kebab {
    display: inline-flex;
    align-items: center;
    margin-left: auto;
}

.tasks-shell .rail-drag-icon {
    opacity: .55;
    flex-shrink: 0;
}

.tasks-shell .rail-dropzone {
    min-height: 40px;
}

/* MudBlazor wraps each rail row in a .mud-drop-item (mud-drop-item-draggable when it can drag). */
.tasks-shell .tasks-rail .mud-drop-item-draggable {
    cursor: grab;
}

.tasks-shell .tasks-rail .mud-drop-item-draggable:active {
    cursor: grabbing;
}

/* Non-manual sort / renaming rows aren't draggable (ItemDisabled) — normal cursor,
   and don't let MudBlazor's disabled styling gray the row out. */
.tasks-shell .tasks-rail .rail-item-static,
.tasks-shell .tasks-rail .rail-item-static .rail-section {
    cursor: default;
    opacity: 1;
}

/* Reorder placeholder shown while dragging a list row (override the chunky pa-4 default). */
.tasks-shell .tasks-rail .mud-dropitem-placeholder {
    min-height: 36px;
    padding: 0 !important;
    border: 1px dashed #7986cb;
    border-radius: 4px;
    margin: 2px 4px;
}

/* MudDivider defaults to FullWidth → .mud-divider-fullwidth has flex-grow:1, which in a
   flex COLUMN grows vertically and swallows the free space (rows end up vertically
   centered). Same clamp Notes uses: force dividers back to a 1px line. */
.tasks-shell hr.mud-divider,
.tasks-mobile-panel hr.mud-divider {
    flex: 0 0 auto !important;
    height: 1px !important;
    min-height: 0 !important;
    max-height: 1px !important;
    margin: 0 !important;
    padding: 0 !important;
    border-width: 1px 0 0 0 !important;
    box-sizing: border-box !important;
    align-self: stretch !important;
}

.tasks-shell .col-resize-handle {
    position: absolute;
    top: 0;
    right: 0;
    width: 6px;
    height: 100%;
    cursor: ew-resize;
    z-index: 20;
    background: transparent;
    user-select: none;
}

.tasks-shell .col-resize-handle:hover,
.tasks-shell .col-resize-handle.resizing {
    background: rgba(121, 134, 203, 0.4);
}

/* ===== Mobile slide-over list panel ===== */

.tasks-mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1299;
}

.tasks-mobile-panel {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(85vw, 320px);
    z-index: 1300;
    display: flex;
    flex-direction: column;
    background: var(--mud-palette-surface);
    box-shadow: 4px 0 16px rgba(0,0,0,0.5);
    animation: tasks-panel-in .18s ease-out;
}

@keyframes tasks-panel-in {
    from { transform: translateX(-100%); }
    to   { transform: translateX(0); }
}

/* Below MudBlazor's md breakpoint (960px) the rail hides; the slide-over takes its place. */
@media (max-width: 959.98px) {
    .tasks-shell .tasks-rail {
        display: none;
    }

    .tasks-shell .tasks-main {
        padding: 4px 6px;
    }

    /* Mobile cards stack several lines — give them a little more breathing room. */
    .tasks-shell .task-row {
        padding: 6px 8px;
    }
}

/* Never show the mobile panel on desktop, even if it was left open while resizing. */
@media (min-width: 960px) {
    .tasks-mobile-overlay,
    .tasks-mobile-panel {
        display: none;
    }
}