/* ═══════════════════════════════════════════════════════════════
   TYPOGRAPHY — Digital Rust
   Content formatting, code blocks, tables, footnotes
   ═══════════════════════════════════════════════════════════════ */

/* Scroll margin for headings behind fixed top bar */
.content h1, .content h2, .content h3, .content h4, .content h5, .content h6,
sup[id^="fnref"] {
    scroll-margin-top: 80px;
}

.content h1 {
    margin-top: 0;
    margin-bottom: 0.5em;
    font-size: var(--dr-text-2xl);
    font-weight: var(--dr-font-weight);
    color: var(--dr-text-primary);
}

.content h2 {
    font-size: var(--dr-text-xl);
    font-weight: var(--dr-font-weight);
    margin-top: 1em;
    margin-bottom: 0.5em;
    padding-bottom: 0.25em;
    border-bottom: var(--dr-border);
}

.content h3 {
    font-size: var(--dr-text-lg);
    font-weight: var(--dr-font-weight);
    margin-top: 1em;
    margin-bottom: 0.5em;
}

.content p { margin: 0.2em 0 1em 0; }
.content ul, .content ol { margin: 0.3em 0; padding-left: 1.5em; }
.content li { margin: 0.15em 0; overflow: visible; }

/* Code blocks */
.content pre {
    background-color: var(--code-bg);
    padding: var(--dr-space-md);
    border-radius: var(--dr-radius);
    overflow-x: auto;
    border: var(--dr-border);
    margin: 0.75em 0;
    position: relative;
    box-shadow: inset 0 2px 8px var(--dr-shadow);
}

.content pre > code { overflow-x: auto; }

.content code {
    background-color: var(--code-bg);
    padding: var(--dr-space-xs) var(--dr-space-xs);
    border-radius: var(--dr-radius-sm);
    font-size: 0.9em;
    font-family: var(--dr-font-mono);
}

/* Copy button */
.copy-button {
    position: absolute;
    top: var(--dr-space-sm);
    right: var(--dr-space-sm);
    padding: var(--dr-space-xs) var(--dr-space-sm);
    background: var(--dr-surface-elevated);
    border: 1px solid var(--dr-surface-highlight);
    border-radius: var(--dr-radius-sm);
    color: var(--dr-text-tertiary);
    font-size: var(--dr-text-xs);
    font-family: var(--dr-font-mono);
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--dr-transition-fast), background-color var(--dr-transition-fast);
    display: flex;
    align-items: center;
    gap: 4px;
    z-index: 10;
    align-self: flex-end;
}

.content pre:hover .copy-button { opacity: 1; }
.copy-button:hover { background: var(--dr-surface-highlight); }
.copy-button svg { width: 14px; height: 14px; fill: currentColor; }

.copy-button.copied {
    background: var(--dr-accent);
    color: var(--dr-text-on-accent);
    border-color: var(--dr-accent);
}

/* Prism.js overrides */
:root[data-theme="dark"] pre[class*="language-"],
:root[data-theme="dark"] code[class*="language-"] {
    background-color: var(--code-bg);
    border-color: var(--border-color);
    text-shadow: none;
}

[data-theme="light"] pre[class*="language-"],
[data-theme="light"] code[class*="language-"] {
    background-color: var(--code-bg);
    border-color: var(--border-color);
    text-shadow: none;
    color: var(--text-color);
}

/* Light mode token contrast */
[data-theme="light"] .token.comment,
[data-theme="light"] .token.prolog,
[data-theme="light"] .token.doctype,
[data-theme="light"] .token.cdata { color: var(--dr-syntax-comment); }

[data-theme="light"] .token.punctuation { color: var(--dr-syntax-punctuation); }

pre[class*="language-"] > code { border: none; background: none; }

/* Inline code outside pre */
:not(pre) > code {
    border: 1px solid var(--dr-surface-highlight);
    background-color: var(--code-bg) !important;
    color: var(--dr-memory-leek) !important;
}

/* Marks */
.content mark {
    background-color: var(--dr-stack-overglow);
    color: var(--dr-horizon);
    padding: 2px 4px;
    border-radius: var(--dr-radius-sm);
}

[data-theme="light"] .content mark {
    background-color: var(--dr-stack-overglow-bright);
    color: var(--dr-text-primary);
}

:root[data-theme="dark"] .content mark {
    background-color: rgba(212, 167, 89, 0.3);
    color: var(--dr-stack-overglow);
}

.content sup { font-size: 0.75em; vertical-align: super; line-height: 0; }
.content sub { font-size: 0.75em; vertical-align: sub; line-height: 0; }
.content del { text-decoration: line-through; color: var(--dr-text-tertiary); opacity: 0.7; }

/* Blockquotes — full border, elevated surface */
.content blockquote {
    border: 1px solid var(--dr-dark-packet);
    border-top: 2px solid var(--dr-accent);
    margin: 0.75em 0;
    padding: 0.5em 1em;
    background-color: var(--blockquote-bg);
    border-radius: var(--dr-radius);
}

/* Markdown content links */
.markdown-content a {
    color: var(--dr-text-link);
    text-decoration: underline;
    text-decoration-color: var(--dr-phantom-current);
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
}

.markdown-content span.notfound a,
.editor-preview span.notfound a { color: var(--dr-error); }

.markdown-content a:hover {
    color: var(--dr-text-link-hover);
    text-decoration-thickness: 2px;
}

.markdown-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1.5rem auto;
    border-radius: var(--dr-radius);
    border: var(--dr-border);
    box-shadow: var(--dr-shadow-offset-md);
}

/* Footnotes */
.footnotes {
    margin-top: var(--dr-space-xl);
    padding-top: var(--dr-space-lg);
    font-size: 0.9em;
    color: var(--dr-text-tertiary);
    border-top: var(--dr-border-subtle);
}

.footnotes ol { padding-left: var(--dr-space-lg); }
.footnotes li { margin-bottom: var(--dr-space-sm); }

.footnote-ref {
    font-size: 0.75em;
    vertical-align: super;
    line-height: 0;
    margin: 0 2px;
    color: var(--dr-accent);
}

.footnote-backref {
    font-size: 0.8em;
    text-decoration: underline;
    text-decoration-thickness: 1px;
    margin-left: 5px;
}

/* Tables — thick borders */
table {
    width: 100%;
    max-width: 100%;
    border-collapse: collapse;
    margin: var(--dr-space-md) 0;
    border: var(--dr-border);
    display: block;
    overflow-x: auto;
}

th, td {
    padding: var(--dr-space-md);
    border: 1px solid var(--dr-dark-packet);
    text-align: left;
}

th {
    background-color: var(--dr-surface-elevated);
    font-family: var(--dr-font-heading);
    font-variation-settings: "slnt" 0;
    font-weight: var(--dr-font-weight);
    color: var(--dr-text-primary);
}

tr:nth-child(even) { background-color: var(--dr-surface-elevated); }