/* DRAFTSPACE — article page styles */

.article-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 64px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 56px 48px 96px;
}

/* Classic mode: narrow single column */
[data-mode="classic"] .article-layout {
  grid-template-columns: 220px minmax(0, 720px);
}

/* TOC rail */
.toc-rail { position: sticky; top: 48px; align-self: start; }

.ds-toc__head {
  font-family: var(--ds-font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ds-fg-mute);
  margin-bottom: 12px;
}
.ds-toc ol, .ds-toc ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 4px; }
.ds-toc a {
  font-family: var(--ds-font-mono); font-size: 11px;
  color: var(--ds-fg-dim); text-decoration: none;
  padding: 3px 0 3px 10px;
  border-left: 2px solid transparent;
  display: block;
  transition: color var(--ds-dur) var(--ds-easing), border-color var(--ds-dur) var(--ds-easing);
}
.ds-toc a:hover { color: var(--ds-fg); }
.ds-toc a[aria-current="true"] { color: var(--ds-mint); border-left-color: var(--ds-mint); }

.toc-meta { margin-top: 24px; }
.toc-meta ul { list-style: none; padding: 0; margin: 0; font-family: var(--ds-font-mono); font-size: 11px; color: var(--ds-fg-mute); display: flex; flex-direction: column; gap: 6px; }

/* Article header */
.article-meta {
  font-family: var(--ds-font-mono); font-size: 11px; color: var(--ds-fg-mute);
  text-transform: uppercase; letter-spacing: 0.16em;
  display: flex; gap: 16px; margin-bottom: 16px;
  padding-bottom: 12px; border-bottom: 1px dashed var(--ds-rule-dash);
}
.article-meta .by { color: var(--ds-mint); }
.article-title {
  font-family: var(--ds-font-display); font-size: 56px; line-height: 1.0;
  letter-spacing: -0.03em; color: var(--ds-fg); margin: 0 0 16px; max-width: 18ch;
}
.article-title em { color: var(--ds-mint); font-style: normal; }
.article-dek {
  font-family: var(--ds-font-serif); font-style: italic; font-size: 22px; line-height: 1.4;
  color: var(--ds-fg-dim); font-variation-settings: "opsz" 144, "wght" 350;
  max-width: 56ch; margin: 0 0 32px;
}

/* Mode toggle */
.mode-toggle {
  display: inline-flex; border: 1px solid var(--ds-rule);
  border-radius: var(--ds-radius); overflow: hidden; margin-bottom: 32px;
}
.mode-toggle button {
  background: transparent; border: 0;
  color: var(--ds-fg-dim); font-family: var(--ds-font-mono); font-size: 11px;
  padding: 6px 14px; cursor: pointer; text-transform: uppercase; letter-spacing: 0.06em;
  border-right: 1px solid var(--ds-rule);
}
.mode-toggle button:last-child { border-right: 0; }
.mode-toggle button[aria-pressed="true"] { background: var(--ds-mint-soft); color: var(--ds-mint); }

/* Prose body */
.ds-prose {
  font-family: var(--ds-font-serif); font-size: 18px; line-height: 1.7;
  color: var(--ds-fg-dim); font-variation-settings: "opsz" 18, "wght" 400;
}
.ds-prose h2 {
  font-family: var(--ds-font-display); font-size: 30px; font-weight: 600;
  letter-spacing: -0.02em; margin: 56px 0 16px; line-height: 1.15; color: var(--ds-fg);
}
.ds-prose h3 { font-family: var(--ds-font-display); font-size: 20px; font-weight: 600; letter-spacing: -0.01em; margin: 36px 0 12px; color: var(--ds-fg); }
.ds-prose p { margin: 0 0 20px; }
.ds-prose p + p { text-indent: 1.5em; }
.ds-prose strong { color: var(--ds-fg); font-weight: 600; }
.ds-prose em { font-style: italic; }
.ds-prose code { font-family: var(--ds-font-mono); font-size: 0.88em; background: var(--ds-bg-2); border: 1px solid var(--ds-rule); border-radius: 3px; padding: 1px 6px; color: var(--ds-mint); }
.ds-prose a { color: var(--ds-mint); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.ds-prose ul, .ds-prose ol { padding-left: 1.4em; margin: 0 0 20px; }
.ds-prose li { margin: 8px 0; }
.ds-prose ul li::marker { color: var(--ds-mint); }
.ds-prose blockquote { margin: 28px 0; padding: 4px 0 4px 20px; border-left: 2px solid var(--ds-mint); font-style: italic; color: var(--ds-fg-dim); }
.ds-prose hr { border: 0; border-top: 1px dashed var(--ds-rule-dash); margin: 40px 0; }
.ds-prose pre {
  background: var(--ds-bg-2); border: 1px solid var(--ds-rule); border-radius: var(--ds-radius);
  padding: 16px 20px; overflow-x: auto; font-family: var(--ds-font-mono); font-size: 13px;
  line-height: 1.6; color: var(--ds-fg); margin: 24px 0; position: relative;
}
.ds-prose pre[data-lang]::before {
  content: attr(data-lang); position: absolute; top: 8px; right: 12px;
  font-size: 10px; color: var(--ds-fg-mute); text-transform: uppercase; letter-spacing: 0.16em;
}

/* Tufte sidenotes */
sup.sn-ref {
  color: var(--ds-mint); font-family: var(--ds-font-mono);
  font-size: 0.7em; font-weight: 600; cursor: pointer;
  vertical-align: super;
}

[data-mode="tufte"] .ds-prose {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 65ch) 240px;
  gap: 0 56px;
}
[data-mode="tufte"] .ds-prose > * { grid-column: 1; }
[data-mode="tufte"] .ds-prose > .sidenote {
  grid-column: 2;
  margin: 0; margin-top: -1.7em;  /* align with referencing text */
  font-family: var(--ds-font-serif); font-style: italic; font-size: 14px;
  line-height: 1.5; color: var(--ds-fg-dim);
  padding-top: 4px; border-top: 1px dashed var(--ds-rule-dash);
  align-self: start;
}
.sidenote .sn-num { color: var(--ds-mint); font-family: var(--ds-font-mono); font-style: normal; font-size: 11px; margin-right: 6px; }

/* Classic: hide sidenotes */
[data-mode="classic"] .ds-prose .sidenote { display: none; }

/* Footnotes at bottom */
.ds-footnotes { margin-top: 64px; padding-top: 24px; border-top: 1px dashed var(--ds-rule-dash); }
.ds-footnotes h4 { font-family: var(--ds-font-mono); font-size: 11px; color: var(--ds-fg-mute); text-transform: uppercase; letter-spacing: 0.16em; margin: 0 0 12px; }
.ds-footnotes ol { padding-left: 1.4em; font-family: var(--ds-font-serif); font-size: 15px; color: var(--ds-fg-mute); display: flex; flex-direction: column; gap: 6px; }

/* Article footer */
.article-foot {
  margin-top: 48px; padding-top: 16px;
  border-top: 1px dashed var(--ds-rule-dash);
  font-family: var(--ds-font-mono); font-size: 12px; color: var(--ds-fg-mute);
}
.article-foot a { color: var(--ds-fg-dim); text-decoration: none; }
.article-foot a:hover { color: var(--ds-mint); }