/* ==================================================================
   RICH TEXT EDITOR - CODE BLOCKS
   ================================================================== */
.code-block,
.mermaid-block {
    margin: 12px 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-light);
}

.code-toolbar {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
    gap: 8px;
}

.code-language-select {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    outline: none;
    margin-right: auto; /* Push buttons to the right */
}

.code-copy-btn {
    background: transparent;
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-12);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-in-out);
}

.code-copy-btn:hover {
    background: var(--bg-hover);
}

.code-delete-btn {
    background: transparent;
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-12);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-in-out);
    margin-left: 4px;
}

.code-delete-btn:hover {
    background: var(--color-red-fill-hover);
    border-color: var(--color-red-fill-hover);
    color: white;
}

.code-block pre,
.mermaid-block pre {
    margin: 0;
    padding: 16px;
    background: #0d1117;
    overflow-x: auto;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.code-block code,
.mermaid-block code {
    display: block;
    color: #e6edf3;
}

/* Image Blocks */
.editor-image {
    position: relative;
    margin: var(--space-5) 0;
    max-width: 100%;
    display: inline-block;
}

.editor-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    display: block;
    box-shadow: var(--shadow-1);
    transition: box-shadow var(--duration-fast) var(--ease-in-out);
}

.editor-image img:hover {
    box-shadow: var(--shadow-2);
}

.editor-image figcaption {
    margin-top: var(--space-2);
    padding: 0 4px;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.5;
}

.editor-image figcaption:empty::before {
    content: 'Add a caption...';
    color: var(--text-tertiary);
    font-style: italic;
}

.editor-image figcaption:focus {
    outline: none;
    color: var(--text-primary);
}

/* File Attachments */
.file-attachment {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    margin: 12px 0;
    background: var(--bg-primary);
    transition: all var(--duration-fast) var(--ease-in-out);
    cursor: pointer;
}

.file-attachment:hover {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-1);
}

.file-attachment-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-blue-light);
    color: var(--accent-blue);
    border-radius: var(--radius-md);
}

.file-attachment-icon svg {
    width: 20px;
    height: 20px;
}

.file-attachment-info {
    flex: 1;
    min-width: 0;
}

.file-attachment-name {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 3px;
    font-size: var(--font-size-14);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-attachment-size {
    font-size: var(--font-size-12);
    color: var(--text-tertiary);
}

.file-attachment-download {
    background: var(--accent-fill);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-in-out);
    text-decoration: none;
    white-space: nowrap;
}

.file-attachment-download:hover {
    background: var(--accent-fill-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-1);
}

/* ==================================================================
   PDF inline attachment — Apple-Notes-style preview that expands
   on demand. Header (icon, name, size, expand toggle, download) is
   always visible; the iframe preview slides in when expanded and
   is lazy-loaded so 5 PDFs in a note don't fetch on open.
   ================================================================== */

.pdf-attachment {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    margin: 12px 0;
    background: var(--bg-primary);
    overflow: hidden;
    transition: border-color var(--duration-fast) var(--ease-in-out), box-shadow var(--duration-fast) var(--ease-in-out);
}

.pdf-attachment:hover {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-1);
}

.pdf-attachment-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
}

.pdf-attachment-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(220, 38, 38, 0.08);
    color: var(--color-red-text);
    border-radius: var(--radius-md);
}

.pdf-attachment-icon svg {
    width: 22px;
    height: 22px;
}

.pdf-attachment-info {
    flex: 1;
    min-width: 0;
}

.pdf-attachment-name {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 3px;
    font-size: var(--font-size-14);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pdf-attachment-size {
    font-size: var(--font-size-12);
    color: var(--text-tertiary);
}

.pdf-attachment-toggle {
    background: transparent;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    transition: background var(--duration-fast) var(--ease-in-out), color var(--duration-fast) var(--ease-in-out), border-color var(--duration-fast) var(--ease-in-out);
    flex-shrink: 0;
    /* Prevent contenteditable from placing a caret in the button when
       clicked — without this, clicking lands a cursor on the icon glyph. */
    user-select: none;
    -webkit-user-select: none;
}

/* Same caret-placement guard on the download link so clicking "Download"
   doesn't insert a cursor into the link text inside contenteditable. */
.pdf-attachment .file-attachment-download,
.file-attachment .file-attachment-download {
    user-select: none;
    -webkit-user-select: none;
}

.pdf-attachment-loading,
.pdf-attachment-error {
    padding: 32px 16px;
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.pdf-attachment-error {
    color: var(--text-tertiary);
}

.pdf-attachment-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-medium);
}

.pdf-attachment-toggle svg {
    width: 16px;
    height: 16px;
    transition: transform var(--duration-normal) var(--ease-in-out);
}

.pdf-attachment[data-pdf-expanded="true"] .pdf-attachment-toggle svg {
    transform: rotate(180deg);
}

.pdf-attachment-preview {
    display: none;
    border-top: 1px solid var(--border-light);
    background: var(--bg-secondary);
}

.pdf-attachment[data-pdf-expanded="true"] .pdf-attachment-preview {
    display: block;
}

.pdf-attachment-preview iframe,
.pdf-attachment-preview object {
    width: 100%;
    height: 600px;
    border: 0;
    display: block;
}

/* ==================================================================
   RICH TEXT EDITOR - MEDIA BLOCK SELECTION & DELETE
   ================================================================== */

/* Selected state for media blocks */
.editor-image.media-selected,
.video-embed.media-selected,
.web-embed.media-selected,
.file-attachment.media-selected,
.link-card.media-selected {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(53, 122, 189, 0.1);
}

/* Delete media: Use right-click menu or select + Delete key */

/* Context menu for media blocks */
.media-context-menu {
    position: fixed;
    background: var(--bg-primary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-2);
    padding: 4px;
    min-width: 160px;
    z-index: var(--z-layer-modal);
    display: none;
}

.media-context-menu.show {
    display: block;
}

.media-context-menu-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: var(--font-size-14);
    color: var(--text-primary);
    transition: background var(--duration-fast) var(--ease-in-out);
}

.media-context-menu-item:hover {
    background: var(--bg-hover);
}

.media-context-menu-item.danger {
    color: rgb(220, 38, 38);
}

.media-context-menu-item.danger:hover {
    background: rgba(220, 38, 38, 0.1);
}

.media-context-menu-item svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}