/* ============================================================
   DocsReaderPage  --  /dev/docs-reader-page
   BEM prefix: dr__
   ============================================================ */

.dr {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

/* -- Header -- */
.dr__header {
    display: flex;
    align-items: flex-end;
    gap: 1rem;
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--border);
    flex: 0 0 auto;
}

.dr__header h1 {
    margin: 0;
    font-size: 1.25rem;
    line-height: 2rem;
}

/* -- Error -- */
.dr__error {
    padding: 0.5rem 1rem;
    margin: 0.5rem 1rem;
    background: var(--danger-bg, #fdd);
    border: 1px solid var(--danger-border, #c00);
    border-radius: 4px;
    color: var(--danger-fg, #900);
    white-space: pre-wrap;
    font-size: 0.85rem;
}

/* -- Split pane -- */
.dr__split {
    display: flex;
    flex: 1 1 auto;
    overflow: hidden;
}

/* -- Left panel: file list -- */
.dr__list {
    display: flex;
    flex-direction: column;
    width: 280px;
    min-width: 220px;
    max-width: 360px;
    border-right: 1px solid var(--border);
    flex: 0 0 auto;
    overflow: hidden;
}

.dr__list-search {
    padding: 0.4rem 0.5rem;
    border-bottom: 1px solid var(--border);
    flex: 0 0 auto;
}

.dr__search-input {
    width: 100%;
}

.dr__list-scroll {
    flex: 1 1 0;
    overflow-y: auto;
    padding: 0.25rem 0;
}

.dr__file {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.75rem;
    cursor: pointer;
    font-size: 0.85rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    border-left: 3px solid transparent;
}

.dr__file:hover {
    background: var(--hover-bg, rgba(0, 0, 0, 0.04));
}

.dr__file--selected {
    background: var(--selected-bg, rgba(0, 120, 212, 0.1));
    border-left-color: var(--accent, #0078d4);
    font-weight: 600;
}

.dr__file-icon {
    flex: 0 0 auto;
    font-size: 0.9rem;
    opacity: 0.6;
}

.dr__file-name {
    overflow: hidden;
    text-overflow: ellipsis;
}

.dr__empty,
.dr__placeholder {
    padding: 1.5rem;
    text-align: center;
    opacity: 0.6;
    font-size: 0.9rem;
}

/* -- Right panel: rendered content -- */
.dr__content {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    overflow: hidden;
}

.dr__content-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1.25rem;
    border-bottom: 1px solid var(--border);
    flex: 0 0 auto;
}

.dr__content-header h2 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    opacity: 0.7;
}

.dr__content-scroll {
    flex: 1 1 0;
    overflow-y: auto;
    padding: 1rem 1.5rem 3rem 1.5rem;
}

/* -- Pop-out overlay (fixed to viewport, covers entire screen) -- */
.dr__popout {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    background: var(--slm-color-surface, var(--bg, #fff));
}

.dr__popout-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1.25rem;
    border-bottom: 1px solid var(--border);
    flex: 0 0 auto;
    background: var(--slm-color-surface, var(--bg, #fff));
}

.dr__popout-header h2 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    opacity: 0.8;
}

.dr__popout-scroll {
    flex: 1 1 0;
    overflow-y: auto;
    padding: 1rem 2rem 3rem 2rem;
}

/* ============================================================
   Markdown rendered HTML styling
   Scoped under .dr__markdown so it does not leak globally
   ============================================================ */

.dr__markdown {
    line-height: 1.65;
    font-size: 0.92rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* Headings */
.dr__markdown h1 {
    font-size: 1.6rem;
    font-weight: 700;
    margin: 1.5rem 0 0.75rem 0;
    padding-bottom: 0.3rem;
    border-bottom: 2px solid var(--border, #ddd);
}

.dr__markdown h2 {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 1.25rem 0 0.6rem 0;
    padding-bottom: 0.25rem;
    border-bottom: 1px solid var(--border, #ddd);
}

.dr__markdown h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 1rem 0 0.5rem 0;
}

.dr__markdown h4,
.dr__markdown h5,
.dr__markdown h6 {
    font-size: 1rem;
    font-weight: 600;
    margin: 0.8rem 0 0.4rem 0;
}

/* Paragraphs and spacing */
.dr__markdown p {
    margin: 0.5rem 0;
}

/* Lists */
.dr__markdown ul,
.dr__markdown ol {
    margin: 0.4rem 0 0.4rem 1.5rem;
    padding: 0;
}

.dr__markdown li {
    margin: 0.2rem 0;
}

.dr__markdown li > ul,
.dr__markdown li > ol {
    margin-top: 0.15rem;
    margin-bottom: 0.15rem;
}

/* Inline code */
.dr__markdown code {
    background: var(--code-bg, rgba(0, 0, 0, 0.06));
    border-radius: 3px;
    padding: 0.15em 0.35em;
    font-size: 0.88em;
    font-family: Consolas, "Courier New", monospace;
}

/* Fenced code blocks */
.dr__markdown pre {
    background: var(--code-bg, rgba(0, 0, 0, 0.06));
    border: 1px solid var(--border, #ddd);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    overflow-x: auto;
    margin: 0.6rem 0;
    font-size: 0.85rem;
    line-height: 1.5;
}

.dr__markdown pre code {
    background: none;
    padding: 0;
    border-radius: 0;
    font-size: inherit;
}

/* Tables */
.dr__markdown table {
    border-collapse: collapse;
    width: 100%;
    margin: 0.6rem 0;
    font-size: 0.88rem;
}

.dr__markdown th,
.dr__markdown td {
    border: 1px solid var(--border, #ccc);
    padding: 0.4rem 0.65rem;
    text-align: left;
    vertical-align: top;
}

.dr__markdown th {
    background: var(--table-header-bg, rgba(0, 0, 0, 0.04));
    font-weight: 600;
}

.dr__markdown tr:nth-child(even) {
    background: var(--table-stripe-bg, rgba(0, 0, 0, 0.015));
}

/* Blockquotes */
.dr__markdown blockquote {
    margin: 0.6rem 0;
    padding: 0.5rem 1rem;
    border-left: 4px solid var(--accent, #0078d4);
    background: var(--blockquote-bg, rgba(0, 120, 212, 0.04));
    color: var(--fg, inherit);
}

.dr__markdown blockquote p {
    margin: 0.25rem 0;
}

/* Horizontal rule */
.dr__markdown hr {
    border: none;
    border-top: 1px solid var(--border, #ddd);
    margin: 1.25rem 0;
}

/* Links */
.dr__markdown a {
    color: var(--accent, #0078d4);
    text-decoration: none;
}

.dr__markdown a:hover {
    text-decoration: underline;
}

/* Images */
.dr__markdown img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

/* Strong / em */
.dr__markdown strong {
    font-weight: 700;
}

/* Task lists (Markdig advanced extensions) */
.dr__markdown ul.contains-task-list {
    list-style: none;
    margin-left: 0;
    padding-left: 0;
}

.dr__markdown .task-list-item {
    display: flex;
    align-items: flex-start;
    gap: 0.4rem;
}

.dr__markdown .task-list-item input[type="checkbox"] {
    margin-top: 0.3em;
    pointer-events: none;
}