/* Unified article + site chrome — horizontal padding matches homepage (22px) */
:root {
  --bg: #f5f5f7;
  --bg2: #eaeaed;
  --bg3: #f0f0f3;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --accent: #fd004c;
  --accent2: #fd004c;
  --border: #d2d2d7;
  --page-pad-x: 22px;
  /* Same max width as Index / Work main (1400px) */
  --content-max: 1400px;
}

/* box-sizing only — SPA has no global * { margin:0 }, which was shifting the header vs React */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

/* Keep landing body typography from site-chrome; only map article palette */
body {
  background: var(--bg);
  color: var(--text);
}

/* Header: load site-chrome.css before this file (same markup as React Navigation) */

/* ——— Article shell — same metrics as Work.tsx main ——— */
.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 40px var(--page-pad-x) 64px;
  font-family: "Lora", Georgia, serif;
  font-size: 19px;
  line-height: 1.75;
  letter-spacing: normal;
}

@media (max-width: 768px) {
  .container {
    padding: 32px 16px 48px;
  }
}

.site-tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2.25rem;
  display: block;
}

h1,
.article-title {
  font-family: "IBM Plex Mono", monospace;
  font-size: clamp(2.8rem, 8vw, 5.2rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.03em;
  color: #1d1d1f;
  margin-bottom: 1.2rem;
}

.subtitle {
  font-family: "Lora", serif;
  font-size: 1.2rem;
  font-style: italic;
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: 2rem;
  max-width: 560px;
}

.byline {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.06em;
  padding-top: 1.4rem;
  border-top: 1px solid var(--border);
}

.byline span {
  color: var(--accent);
}

.article-lead,
.lead {
  font-size: 1.22rem;
  line-height: 1.72;
  color: #3a3a3c;
  margin-bottom: 1.6rem;
}

p {
  margin-bottom: 1.35rem;
  color: var(--text);
}

p:last-child {
  margin-bottom: 0;
}

h2 {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 2.75rem 0 1.1rem;
}

h2.section-border {
  border-top: 1px solid var(--border);
  padding-top: 0.5rem;
}

.sec-num {
  color: var(--accent);
  opacity: 0.7;
}

h3 {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 1.75rem 0 0.75rem;
}

strong {
  font-weight: 600;
  color: var(--text);
}

/* Prose links only — header uses site-chrome.css + .nav-link */
.container a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

sup a {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  text-decoration: none;
  font-weight: 600;
}

.pull {
  border-left: 2px solid var(--accent2);
  padding: 1.2rem 1.5rem;
  margin: 2.25rem 0;
  background: var(--bg3);
}

.pull p {
  color: #3a3a3c;
  font-style: italic;
  font-size: 1.06rem;
  margin: 0;
}

.pull-quote {
  padding: 1.2rem 1.5rem;
  margin: 2.25rem 0;
  font-family: "Lora", serif;
  font-style: italic;
  font-size: 1.18rem;
  line-height: 1.5;
  color: var(--accent);
  border-top: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
}

.eq,
.math-block {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.9rem;
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 1.2rem 1.5rem;
  margin: 2rem 0;
  overflow-x: auto;
  color: #1d1d1f;
  line-height: 1.9;
  border-radius: 0 2px 2px 0;
}

.eq p {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.88rem;
  margin: 0;
  color: var(--text);
}

.eq p + p {
  margin-top: 0.55rem;
}

.eq .comment {
  color: var(--muted);
  font-style: normal;
}

.math-block .comment {
  color: var(--muted);
  font-style: normal;
  font-size: 0.82rem;
}

.math-block .highlight {
  color: var(--accent);
  font-weight: 600;
}

.callout {
  background: var(--bg3);
  border-left: 3px solid var(--accent);
  padding: 1.2rem 1.5rem;
  margin: 2.25rem 0;
  font-style: italic;
  color: var(--text);
}

.callout cite {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  font-style: normal;
  color: var(--muted);
  margin-top: 10px;
  letter-spacing: 0.05em;
}

/* Figures: canvases + images always visible */
.fig,
.figure,
figure {
  margin: 2.5rem 0;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  width: 100%;
  min-width: 0;
}

.fig-body {
  padding: 0;
}

.fig-cap,
.fig-caption,
figcaption {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  padding: 0.9rem 1.4rem;
  border-top: 1px solid var(--border);
  line-height: 1.6;
  background: var(--bg);
}

.fig-cap b,
.fig-caption strong,
figcaption strong {
  color: #3a3a3c;
  display: block;
  margin-bottom: 4px;
}

.fig-caption p,
figcaption p {
  margin: 0;
  font-size: 11px;
  color: var(--muted);
}

.viz-header {
  padding: 1rem 1.4rem 0.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.viz-title {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.viz-badge {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.08em;
}

canvas {
  display: block;
  width: 100%;
  min-height: 120px;
  vertical-align: middle;
}

figure canvas {
  background: #080807;
}

img.article-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}

.slider-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0.9rem 1.4rem;
  background: var(--bg3);
  border-top: 1px solid var(--border);
}

.slider-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}

.slider-label span {
  color: var(--accent);
  font-weight: 600;
}

input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
  height: 3px;
  cursor: pointer;
}

.slider-val {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--text);
  font-weight: 600;
  min-width: 36px;
  text-align: right;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin: 1.75rem 0;
  font-family: "IBM Plex Mono", monospace;
}

th {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--accent);
  color: var(--accent);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
}

td {
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: top;
  line-height: 1.5;
}

tr:last-child td {
  border-bottom: none;
}

td strong,
.win {
  color: var(--accent);
  font-weight: 600;
}

.note {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.35rem;
  margin: 1.75rem 0;
  background: var(--bg3);
  border-radius: 0 3px 3px 0;
}

.note-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.45rem;
  display: block;
}

.note p {
  margin: 0;
  font-size: 19px;
}

.whatif {
  margin: 2rem 0;
}

.whatif-item {
  border-left: 1px solid var(--border);
  padding: 0.85rem 0 0.85rem 1.3rem;
  margin-bottom: 0.1rem;
  transition: border-color 0.2s;
}

.whatif-item:hover {
  border-left-color: var(--accent);
}

.whatif-q {
  font-style: italic;
  color: var(--text);
  font-size: 19px;
  margin-bottom: 0.5rem;
}

.whatif-a {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
}

.rule {
  width: 2.8rem;
  height: 1px;
  background: var(--accent);
  opacity: 0.5;
  margin: 2rem 0;
}

.refs,
.footnotes {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.refs h2,
.footnotes h2 {
  margin-top: 0;
  border-top: none;
  padding-top: 0;
  font-size: 0.78rem;
}

/* Prose lists only — do not target ul.nav-menu (header) */
.container ul {
  padding-left: 1.25rem;
  margin: 1rem 0;
  font-family: "Lora", Georgia, serif;
  font-size: 19px;
}

.container ul li {
  color: var(--text);
  margin-bottom: 0.5em;
}

ol {
  padding-left: 1.4rem;
}

ol li {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 0.65rem;
  line-height: 1.65;
}

ol li em {
  font-style: italic;
}

/* ——— Unified footer ——— */
.site-footer {
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.site-footer .dot {
  color: var(--accent);
}

.site-footer a {
  color: var(--accent);
  text-decoration: none;
}

.site-footer .footer-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.site-footer .rss-mark {
  opacity: 0.35;
  line-height: 0;
}

.site-footer .rss-mark:hover {
  opacity: 0.9;
}

@media (max-width: 620px) {
  .container {
    font-size: 17px;
  }

  h1,
  .article-title {
    font-size: 2.35rem;
  }

  .subtitle {
    font-size: 1.08rem;
  }

  .whatif-q {
    font-size: 17px;
  }

  .whatif-a {
    font-size: 16px;
  }

  .note p {
    font-size: 17px;
  }
}