.editor-page {
    position: fixed;
    top: 49px; /* navbar height */
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
}

.editor-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
    flex-shrink: 0;
}

.toolbar-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

@media (max-width: 600px) {
    .editor-toolbar {
        flex-wrap: wrap;
        gap: 0.4rem;
        padding: 0.4rem 0.75rem;
    }

    .breadcrumb {
        flex: 1 1 100%;
        min-width: 0;
    }

    .toolbar-actions {
        flex: 1 1 100%;
        gap: 0.4rem;
        overflow-x: auto;
        padding-bottom: 0.1rem;
    }
}

.btn-outline.active {
    background: var(--primary);
    color: #fff;
}

.title-input {
    background: transparent;
    border: none;
    border-bottom: 1px solid transparent;
    color: var(--text);
    font-size: 0.9rem;
    padding: 0.1rem 0.25rem;
    min-width: 12rem;
    max-width: 30rem;
    outline: none;
}

.title-input:hover,
.title-input:focus {
    border-bottom-color: var(--border);
}

.editor-split {
    display: flex;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

.editor-pane {
    flex: 1;
    overflow: hidden;
    min-height: 0;
    border-right: 1px solid var(--border);
}

#editor {
    height: 100%;
}

.editor-pane .cm-editor {
    height: 100%;
}

.preview-pane {
    flex: 1;
    overflow: auto;
    padding: 1.5rem;
    background: var(--bg-card);
}

/* Rich text (WYSIWYG) editor container */
.editor-rich {
    flex: 1;
    overflow: auto;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--bg);
}

.editor-rich .milkdown {
    width: 100%;
    max-width: 720px;
    outline: none;
    cursor: text;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    padding: 3rem 3.5rem;
}

/* Milkdown prose styles — match markdown.css */
.editor-rich .milkdown .ProseMirror {
    outline: none;
    min-height: 60vh;
}

.editor-rich .milkdown .ProseMirror p {
    margin-bottom: 1.25em;
}

.editor-rich .milkdown .ProseMirror ul,
.editor-rich .milkdown .ProseMirror ol {
    padding-left: 1.5rem;
}

.editor-rich .milkdown .ProseMirror li {
    margin-bottom: 0.25em;
}

.editor-rich .milkdown .ProseMirror li > p {
    margin-bottom: 0;
}

/* Source/Wrap/Preview buttons hidden in rich text mode */
.source-only {
    display: none;
}

/* Link editing tooltip */
.link-tooltip {
    position: fixed;
    z-index: 200;
    display: none;
    align-items: center;
    gap: 0.4rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.35rem 0.5rem;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.link-tooltip.visible {
    display: flex;
}

.link-tooltip input {
    width: 260px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    color: var(--text);
    padding: 0.2rem 0.5rem;
    font-size: 0.83rem;
    outline: none;
}

.link-tooltip input:focus {
    border-color: var(--primary);
}

.link-tooltip button {
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.8rem;
    padding: 0.2rem 0.45rem;
    white-space: nowrap;
    line-height: 1.4;
}

.link-tooltip button:first-of-type {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.link-tooltip button:hover { opacity: 0.8; }

/* ── Collaboration: Presence ─────────────────────────────────────────────── */

.presence-list {
    display: flex;
    align-items: center;
    gap: 4px;
}

.presence-avatar {
    display: inline-block;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid var(--bg-card);
    box-shadow: 0 0 0 1px var(--border);
    flex-shrink: 0;
    transition: transform 0.15s;
}

.presence-avatar:hover {
    transform: scale(1.15);
}

/* ── Collaboration: Comment sidebar ──────────────────────────────────────── */

.comment-sidebar {
    position: fixed;
    right: 0;
    top: 49px; /* below navbar */
    bottom: 0;
    width: 260px;
    background: var(--bg-card);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 50;
    overflow: hidden;
}

.comment-sidebar-header {
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.comment-threads {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.comment-empty {
    color: var(--text-muted);
    font-size: 0.85rem;
    text-align: center;
    margin-top: 2rem;
}

.comment-thread {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.comment-thread-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    padding: 0.3rem 0.6rem;
    background: var(--border);
    border-bottom: 1px solid var(--border);
}

.comment-item {
    padding: 0.5rem 0.6rem;
    border-top: 1px solid var(--border);
}

.comment-item:first-of-type {
    border-top: none;
}

.comment-author {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.2rem;
}

.comment-text {
    font-size: 0.85rem;
    line-height: 1.45;
    word-break: break-word;
}

.comment-time {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* ── Collaboration: Comment button & form ────────────────────────────────── */

.comment-btn {
    position: fixed;
    z-index: 100;
    padding: 0.25rem 0.6rem;
    font-size: 0.78rem;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.comment-btn:hover {
    opacity: 0.88;
}

.comment-form {
    position: fixed;
    z-index: 110;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    padding: 0.75rem;
    width: 280px;
}

.comment-form textarea {
    width: 100%;
    box-sizing: border-box;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    padding: 0.4rem 0.5rem;
    font-size: 0.85rem;
    resize: vertical;
    outline: none;
    font-family: inherit;
}

.comment-form textarea:focus {
    border-color: var(--primary);
}

.comment-form-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
    justify-content: flex-end;
}

/* When comment sidebar is visible, shrink editor to avoid overlap */
.editor-page:has(~ .comment-sidebar) {
    right: 260px;
}

/* ── Collaboration: Invite modal ─────────────────────────────────────────── */

.invite-modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
}

.invite-modal-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    width: 440px;
    max-width: calc(100vw - 2rem);
}

.invite-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 0.9rem;
}

.invite-modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
    padding: 0.1rem 0.3rem;
    line-height: 1;
}

.invite-modal-close:hover {
    color: var(--text);
}

.invite-modal-body {
    padding: 1rem;
}