/* ==============================================
   Markdown Editor — Material Design 3
   ============================================== */

.md-editor {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--radius-lg);
    background: var(--md-surface);
    overflow: hidden;
}

/* ---- Toolbar ---- */
.md-editor-toolbar {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 6px 8px;
    background: var(--md-surface-container);
    border-bottom: 1px solid var(--md-outline-variant);
    flex-wrap: wrap;
}

.md-editor-toolbar-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    padding: 0;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--md-on-surface-variant);
    font-size: 1rem;
    cursor: pointer;
    transition: background var(--duration-short) var(--easing-standard),
                color var(--duration-short) var(--easing-standard);
}

.md-editor-toolbar-btn:hover {
    background: var(--md-surface-variant);
    color: var(--md-on-surface);
}

.md-editor-toolbar-btn.active {
    background: var(--md-primary-container);
    color: var(--md-on-primary-container);
}

.md-editor-toolbar-divider {
    width: 1px;
    height: 24px;
    margin: 0 6px;
    background: var(--md-outline-variant);
}

/* View mode toggle (right side) */
.md-editor-toolbar-modes {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-left: auto;
    padding-left: 8px;
}

.md-editor-toolbar-modes .md-editor-toolbar-btn {
    font-size: 0.75rem;
    width: auto;
    padding: 0 10px;
    font-weight: 500;
}

/* ---- Editor body (split mode) ---- */
.md-editor-body {
    display: flex;
    flex: 1 1 auto;
    min-height: 400px;
}

/* Write pane */
.md-editor-write {
    flex: 1 1 50%;
    display: flex;
    flex-direction: column;
}

.md-editor-write textarea {
    flex: 1 1 auto;
    width: 100%;
    min-height: 400px;
    padding: 16px 20px;
    border: none;
    background: var(--md-surface);
    color: var(--md-on-surface);
    font-family: "JetBrains Mono", "Fira Code", "Consolas", monospace;
    font-size: 0.875rem;
    line-height: 1.7;
    resize: vertical;
    outline: none;
    tab-size: 4;
}

.md-editor-write textarea::placeholder {
    color: var(--md-on-surface-variant);
    opacity: 0.5;
}

/* Split divider */
.md-editor-divider {
    width: 1px;
    background: var(--md-outline-variant);
    flex-shrink: 0;
}

/* Preview pane */
.md-editor-preview {
    flex: 1 1 50%;
    padding: 16px 20px;
    overflow-y: auto;
    background: var(--md-surface);
}

/* ---- Mode variations ---- */

/* Write-only mode */
.md-editor--write .md-editor-preview,
.md-editor--write .md-editor-divider {
    display: none;
}

.md-editor--write .md-editor-write {
    flex: 1 1 100%;
}

/* Preview-only mode */
.md-editor--preview .md-editor-write,
.md-editor--preview .md-editor-divider {
    display: none;
}

.md-editor--preview .md-editor-preview {
    flex: 1 1 100%;
}

/* ---- Rendered Markdown styling ---- */
.md-editor-preview h1 {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--md-on-surface);
    margin: 0 0 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--md-outline-variant);
}

.md-editor-preview h2 {
    font-size: 1.375rem;
    font-weight: 600;
    line-height: 1.35;
    color: var(--md-on-surface);
    margin: 24px 0 12px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--md-outline-variant);
}

.md-editor-preview h3 {
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--md-on-surface);
    margin: 20px 0 8px;
}

.md-editor-preview h4 {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--md-on-surface);
    margin: 16px 0 8px;
}

.md-editor-preview h5 {
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.5;
    color: var(--md-on-surface-variant);
    margin: 16px 0 8px;
}

.md-editor-preview h6 {
    font-size: 0.8125rem;
    font-weight: 600;
    line-height: 1.5;
    color: var(--md-on-surface-variant);
    margin: 16px 0 8px;
}

.md-editor-preview p {
    font-size: 0.875rem;
    line-height: 1.7;
    color: var(--md-on-surface);
    margin: 0 0 12px;
}

.md-editor-preview a {
    color: var(--md-primary);
    text-decoration: none;
}

.md-editor-preview a:hover {
    text-decoration: underline;
}

.md-editor-preview strong {
    font-weight: 600;
}

/* Lists */
.md-editor-preview ul,
.md-editor-preview ol {
    margin: 0 0 12px;
    padding-left: 24px;
    font-size: 0.875rem;
    line-height: 1.7;
    color: var(--md-on-surface);
}

.md-editor-preview li {
    margin-bottom: 4px;
}

.md-editor-preview li > ul,
.md-editor-preview li > ol {
    margin-top: 4px;
    margin-bottom: 0;
}

/* Blockquote */
.md-editor-preview blockquote {
    margin: 0 0 12px;
    padding: 8px 16px;
    border-left: 4px solid var(--md-primary);
    background: var(--md-surface-container);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--md-on-surface-variant);
    font-size: 0.875rem;
    line-height: 1.7;
}

.md-editor-preview blockquote p:last-child {
    margin-bottom: 0;
}

/* Inline code */
.md-editor-preview code {
    padding: 2px 6px;
    background: var(--md-surface-container-high);
    color: var(--md-on-surface);
    border-radius: var(--radius-sm);
    font-family: "JetBrains Mono", "Fira Code", "Consolas", monospace;
    font-size: 0.8125rem;
}

/* Code blocks */
.md-editor-preview pre {
    margin: 0 0 12px;
    padding: 16px;
    background: var(--md-surface-container-highest);
    border-radius: var(--radius-md);
    overflow-x: auto;
}

.md-editor-preview pre code {
    padding: 0;
    background: transparent;
    border-radius: 0;
    font-size: 0.8125rem;
    line-height: 1.6;
}

/* Tables */
.md-editor-preview table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 12px;
    font-size: 0.8125rem;
}

.md-editor-preview th {
    padding: 10px 12px;
    background: var(--md-surface-container);
    color: var(--md-on-surface);
    font-weight: 600;
    text-align: left;
    border-bottom: 2px solid var(--md-outline-variant);
}

.md-editor-preview td {
    padding: 8px 12px;
    color: var(--md-on-surface);
    border-bottom: 1px solid var(--md-outline-variant);
}

.md-editor-preview tr:hover td {
    background: var(--md-surface-container);
}

/* Horizontal rule */
.md-editor-preview hr {
    border: none;
    height: 1px;
    background: var(--md-outline-variant);
    margin: 24px 0;
}

/* Images */
.md-editor-preview img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: 8px 0;
}

/* Task lists */
.md-editor-preview input[type="checkbox"] {
    margin-right: 6px;
    accent-color: var(--md-primary);
}

/* ---- Status bar (optional) ---- */
.md-editor-status {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 16px;
    padding: 6px 12px;
    background: var(--md-surface-container);
    border-top: 1px solid var(--md-outline-variant);
    font-size: 0.75rem;
    color: var(--md-on-surface-variant);
}