/*
 * markdown.css — typography and components for rendered Markdown
 * (article body, comments, editor previews).
 *
 * All rules are scoped under .md-body so they never leak into the rest
 * of the page. Sizes are written in em so the content scales with the
 * container's font size (articles are base size, comments are text-sm).
 */

.md-body {
    font-size: 1em;
    line-height: 1.75;
    color: #1f2937;          /* gray-800 */
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* ---------- paragraphs ---------- */
.md-body p {
    margin: 0 0 1em;
}

.md-body > :first-child {
    margin-top: 0;
}
.md-body > :last-child {
    margin-bottom: 0;
}

/* ---------- headings ---------- */
.md-body h1,
.md-body h2,
.md-body h3,
.md-body h4,
.md-body h5,
.md-body h6 {
    font-weight: 700;
    color: #111827;          /* gray-900 */
    line-height: 1.3;
    margin: 1.6em 0 0.6em;
    scroll-margin-top: 1rem;
}

.md-body h1 {
    font-size: 1.875em;
    padding-bottom: 0.3em;
    border-bottom: 1px solid #e5e7eb;
}
.md-body h2 {
    font-size: 1.5em;
    padding-bottom: 0.3em;
    border-bottom: 1px solid #e5e7eb;
}
.md-body h3 { font-size: 1.25em; }
.md-body h4 { font-size: 1.1em; }
.md-body h5 { font-size: 1em; }
.md-body h6 {
    font-size: 0.9em;
    color: #4b5563;          /* gray-600 */
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

/* heading permalink (#) shown on hover */
.md-body .md-anchor {
    display: inline-block;
    margin-left: 0.4em;
    font-size: 0.8em;
    font-weight: 600;
    color: #9ca3af;          /* gray-400 */
    text-decoration: none;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.15s ease;
}
.md-body h1:hover .md-anchor,
.md-body h2:hover .md-anchor,
.md-body h3:hover .md-anchor,
.md-body h4:hover .md-anchor,
.md-body h5:hover .md-anchor,
.md-body h6:hover .md-anchor {
    visibility: visible;
    opacity: 1;
}
.md-body .md-anchor:hover {
    color: #2563eb;          /* blue-600 */
}

/* ---------- links ---------- */
.md-body a {
    color: #2563eb;          /* blue-600 */
    text-decoration: none;
    border-bottom: 1px solid rgba(37, 99, 235, 0.3);
    transition: border-color 0.15s ease;
}
.md-body a:hover {
    color: #1d4ed8;          /* blue-700 */
    border-bottom-color: currentColor;
}

/* ---------- emphasis ---------- */
.md-body strong { font-weight: 700; color: #111827; }
.md-body em { font-style: italic; }
.md-body del { color: #6b7280; }
.md-body mark {
    background: #fef08a;     /* yellow-200 */
    color: #1f2937;
    padding: 0 0.2em;
    border-radius: 0.25em;
}
.md-body kbd {
    display: inline-block;
    padding: 0.15em 0.45em;
    font-size: 0.85em;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    color: #374151;
    background: #f9fafb;
    border: 1px solid #d1d5db;
    border-bottom-width: 2px;
    border-radius: 0.35em;
}

/* ---------- inline code ---------- */
.md-body code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    font-size: 0.875em;
    background: #f3f4f6;     /* gray-100 */
    color: #111827;
    padding: 0.2em 0.4em;
    border-radius: 0.375em;
}
.md-body pre code {
    background: transparent;
    color: inherit;
    padding: 0;
    font-size: 0.9em;
    border-radius: 0;
    display: block;
    overflow-x: auto;
}

/* ---------- code blocks ---------- */
.md-body pre {
    position: relative;
    margin: 1em 0;
    padding: 1rem 1.1rem;
    background: #f6f8fa;     /* github light */
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
    overflow-x: auto;
    line-height: 1.6;
    tab-size: 4;
}

/* language badge (top-left) */
.md-body .md-lang {
    position: absolute;
    top: 0.5rem;
    left: 0.9rem;
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #9ca3af;
    user-select: none;
    pointer-events: none;
}

/* copy button (top-right, appears on hover) */
.md-body .md-copy-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.25rem 0.55rem;
    font-size: 0.72rem;
    font-weight: 500;
    color: #6b7280;
    background: #ffffff;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.15s ease, color 0.15s ease, border-color 0.15s ease;
    z-index: 1;
}
.md-body pre:hover .md-copy-btn {
    opacity: 1;
}
.md-body .md-copy-btn:hover {
    color: #1f2937;
    border-color: #9ca3af;
}
.md-body .md-copy-btn.md-copied {
    color: #059669;          /* green-600 */
    border-color: #059669;
}
.md-body .md-copy-btn svg {
    width: 0.85em;
    height: 0.85em;
}
@media (hover: none) {
    .md-body .md-copy-btn { opacity: 1; }
}

/* ---------- lists ---------- */
.md-body ul,
.md-body ol {
    margin: 0 0 1em;
    padding-left: 1.6em;
}
.md-body ul { list-style: disc; }
.md-body ol { list-style: decimal; }
.md-body li {
    margin: 0.3em 0;
}
.md-body li > ul,
.md-body li > ol {
    margin: 0.3em 0;
}
.md-body li > p {
    margin: 0.3em 0;
}

/* GFM task lists */
.md-body li:has(> input[type="checkbox"]) {
    list-style: none;
    margin-left: -1.6em;
}
.md-body input[type="checkbox"] {
    margin-right: 0.5em;
    accent-color: #2563eb;
    transform: translateY(0.1em);
}

/* ---------- blockquote ---------- */
.md-body blockquote {
    margin: 1em 0;
    padding: 0.6em 1em;
    color: #4b5563;          /* gray-600 */
    background: #f9fafb;     /* gray-50 */
    border-left: 4px solid #d1d5db;
    border-radius: 0 0.5rem 0.5rem 0;
}
.md-body blockquote > :last-child {
    margin-bottom: 0;
}
.md-body blockquote > :first-child {
    margin-top: 0;
}

/* ---------- tables ---------- */
.md-body .md-table-wrap {
    margin: 1em 0;
    overflow-x: auto;
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
}
.md-body table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95em;
}
.md-body th,
.md-body td {
    padding: 0.5em 0.9em;
    border: 1px solid #e5e7eb;
    text-align: left;
    vertical-align: top;
}
.md-body th {
    font-weight: 600;
    background: #f9fafb;
    color: #111827;
    white-space: nowrap;
}
.md-body tbody tr:nth-child(even) {
    background: #f9fafb;
}
.md-body tbody tr:hover {
    background: #f3f4f6;
}

/* ---------- images ---------- */
.md-body img {
    max-width: 100%;
    height: auto;
    margin: 0.5em 0;
    border-radius: 0.5rem;
    cursor: zoom-in;
}

/* ---------- horizontal rule ---------- */
.md-body hr {
    margin: 2em 0;
    border: 0;
    border-top: 1px solid #e5e7eb;
}

/* ---------- details (rendered by some md flavors) ---------- */
.md-body details {
    margin: 1em 0;
    padding: 0.6em 1em;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
}
.md-body summary {
    cursor: pointer;
    font-weight: 600;
    color: #111827;
}

/* ---------- lightbox ---------- */
#mdLightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(17, 24, 39, 0.9);
    padding: 2rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}
#mdLightbox.open {
    opacity: 1;
    visibility: visible;
}
#mdLightbox img {
    max-width: 92vw;
    max-height: 88vh;
    border-radius: 0.5rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
#mdLightbox .md-lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1.25rem;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    line-height: 1;
    color: #e5e7eb;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 9999px;
    cursor: pointer;
    transition: background 0.15s ease;
}
#mdLightbox .md-lightbox-close:hover {
    background: rgba(255, 255, 255, 0.25);
}
#mdLightbox .md-lightbox-caption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 1rem;
    text-align: center;
    color: #d1d5db;
    font-size: 0.85rem;
    padding: 0 2rem;
}

/* ---------- responsive ---------- */
@media (max-width: 640px) {
    .md-body h1 { font-size: 1.6em; }
    .md-body h2 { font-size: 1.35em; }
    .md-body pre { padding: 0.85rem 0.9rem; }
}