* { box-sizing: border-box; }
:root {
  --rsd-paper: #eef2f1;
  --rsd-print: #fbfdfc;
  --rsd-ink: #10191b;
  --rsd-muted: #5f6f73;
  --rsd-rule: #bdc8c9;
  --rsd-fixer: #416f82;
  --rsd-safelight: #9f3034;
  --rsd-black: #071012;
  --rsd-silver: #d8dedf;
  --rsd-display: "Gill Sans MT", "Gill Sans", "Trebuchet MS", "Segoe UI", Arial, sans-serif;
  --rsd-body: Arial, Helvetica, "Segoe UI", sans-serif;
  --rsd-mono: "OCR A Std", "Cascadia Mono", "Lucida Console", "Courier New", monospace;
}

body {
  margin: 0;
  background: var(--rsd-paper);
  color: var(--rsd-ink);
  font-family: var(--rsd-body);
}

.rsd-site {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px;
}

.rsd-masthead {
  min-height: 78vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 42px;
  padding: 22px 22px 30px;
  border: 1px solid var(--rsd-rule);
  background: var(--rsd-print);
  box-shadow: inset 12px 0 0 var(--rsd-black), inset -1px 0 0 var(--rsd-silver);
}

.rsd-topline,
.rsd-archive-head,
.rsd-card footer,
.rsd-article-meta,
.rsd-article-publication {
  font-family: var(--rsd-mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: 11px;
}

.rsd-topline {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--rsd-muted);
  border-bottom: 1px solid var(--rsd-rule);
  padding-bottom: 14px;
}

.rsd-kicker { color: var(--rsd-safelight); }

.rsd-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
  gap: 38px;
  align-items: end;
}

.rsd-title-block h1 {
  margin: 0;
  max-width: 850px;
  font-family: var(--rsd-display);
  font-size: clamp(54px, 9vw, 132px);
  line-height: .82;
  letter-spacing: -.075em;
  font-weight: 700;
}

.rsd-headline {
  margin: 24px 0 0;
  font-family: var(--rsd-display);
  font-size: clamp(24px, 3.3vw, 48px);
  line-height: 1;
  letter-spacing: -.04em;
  max-width: 720px;
}

.rsd-description-block {
  border-left: 6px solid var(--rsd-safelight);
  padding: 18px 0 18px 18px;
  color: var(--rsd-ink);
  font-size: 18px;
  line-height: 1.55;
}

.rsd-description-block p { margin: 0; }

.rsd-exposure-strip,
.rsd-card-exposures {
  display: grid;
  grid-template-columns: repeat(18, 1fr);
  gap: 7px;
  padding: 12px;
  border: 1px solid var(--rsd-rule);
  background: #e2e8e8;
}

.rsd-exposure-strip span,
.rsd-card-exposures span {
  display: block;
  height: 10px;
  border: 1px solid #c7d0d1;
  background: var(--rsd-print);
}

.rsd-exposure-strip .is-lit,
.rsd-card-exposures .pin {
  background: var(--rsd-safelight);
  border-color: var(--rsd-safelight);
}

.rsd-exposure-strip .is-cold,
.rsd-card-exposures .cold {
  background: var(--rsd-fixer);
  border-color: var(--rsd-fixer);
}

.rsd-topic-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 6px;
}

.rsd-topic-row a,
.rsd-topic-row span {
  display: inline-block;
  border: 1px solid var(--rsd-rule);
  padding: 8px 10px;
  color: var(--rsd-ink);
  background: #f7faf9;
  text-decoration: none;
  font-size: 13px;
}

.rsd-main {
  display: grid;
  gap: 20px;
  margin-top: 20px;
}

.rsd-thesis,
.rsd-feature,
.rsd-density,
.rsd-archive {
  background: var(--rsd-print);
  border: 1px solid var(--rsd-rule);
  padding: clamp(22px, 4vw, 44px);
}

.rsd-section-label,
.rsd-feature-mark,
.rsd-aperture-code {
  font-family: var(--rsd-mono);
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--rsd-safelight);
  font-size: 11px;
}

.rsd-thesis h2,
.rsd-feature h2,
.rsd-density h2 {
  margin: 10px 0 16px;
  font-family: var(--rsd-display);
  font-size: clamp(34px, 5vw, 72px);
  line-height: .96;
  letter-spacing: -.055em;
  max-width: 900px;
}

.rsd-thesis p,
.rsd-feature p {
  max-width: 760px;
  margin: 0;
  font-size: 18px;
  line-height: 1.6;
  color: #243033;
}

.rsd-apertures {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.rsd-apertures article {
  background: var(--rsd-print);
  border: 1px solid var(--rsd-rule);
  border-top: 8px solid var(--rsd-black);
  padding: 22px;
  min-height: 230px;
}

.rsd-apertures h3 {
  margin: 28px 0 12px;
  font-family: var(--rsd-display);
  font-size: 30px;
  line-height: 1;
  letter-spacing: -.035em;
}

.rsd-apertures p {
  margin: 0;
  color: var(--rsd-muted);
  line-height: 1.5;
}

.rsd-feature {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 28px;
  align-items: start;
  border-left: 16px solid var(--rsd-safelight);
}

.rsd-density ol {
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.rsd-density li {
  border: 1px solid var(--rsd-rule);
  padding: 18px;
  background: #f8faf9;
}

.rsd-density strong {
  display: block;
  margin-bottom: 10px;
  font-family: var(--rsd-display);
  font-size: 22px;
  letter-spacing: -.03em;
}

.rsd-density span {
  color: var(--rsd-muted);
  line-height: 1.45;
}

.rsd-archive-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 22px;
}

.rsd-archive-head h2 {
  margin: 0;
  font-family: var(--rsd-display);
  font-size: clamp(30px, 4vw, 56px);
  letter-spacing: -.055em;
  text-transform: none;
}

.rsd-card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.rsd-card-link {
  display: block;
  min-height: 310px;
  padding: 18px;
  color: inherit;
  text-decoration: none;
  background: #f9fbfa;
  border: 1px solid var(--rsd-rule);
  box-shadow: inset 0 -10px 0 #e2e8e8;
}

.rsd-card-link:hover,
.rsd-card-link:focus {
  border-color: var(--rsd-safelight);
  outline: 0;
}

.rsd-card-exposures {
  grid-template-columns: repeat(12, 1fr);
  gap: 5px;
  padding: 8px;
  margin-bottom: 24px;
}

.rsd-card time {
  font-family: var(--rsd-mono);
  font-size: 11px;
  color: var(--rsd-muted);
}

.rsd-card h2 {
  margin: 12px 0 12px;
  max-width: 620px;
  font-family: var(--rsd-display);
  font-size: clamp(27px, 3.2vw, 44px);
  line-height: .98;
  letter-spacing: -.05em;
}

.rsd-card p {
  margin: 0;
  color: var(--rsd-muted);
  line-height: 1.5;
  max-width: 680px;
}

.rsd-card footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 28px;
  padding-top: 12px;
  border-top: 1px solid var(--rsd-rule);
  color: var(--rsd-fixer);
}

.rsd-article {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px;
}

.rsd-article-header {
  background: var(--rsd-print);
  border: 1px solid var(--rsd-rule);
  padding: clamp(22px, 5vw, 54px);
  box-shadow: inset 10px 0 0 var(--rsd-black);
}

.rsd-article-nav a {
  color: var(--rsd-fixer);
  text-decoration: none;
  font-family: var(--rsd-mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: 12px;
}

.rsd-article-publication {
  margin: 42px 0 10px;
  color: var(--rsd-safelight);
}

.rsd-article-header h1 {
  margin: 0;
  max-width: 960px;
  font-family: var(--rsd-display);
  font-size: clamp(46px, 7vw, 96px);
  line-height: .9;
  letter-spacing: -.07em;
}

.rsd-article-meta {
  margin-top: 22px;
  color: var(--rsd-muted);
}

.rsd-article-strip {
  margin-top: 34px;
  grid-template-columns: repeat(12, 1fr);
}

.rsd-article-frame {
  display: grid;
  grid-template-columns: 150px minmax(0, 760px) 230px;
  gap: 20px;
  align-items: start;
  margin-top: 20px;
}

.rsd-negative-rail,
.rsd-leak-panel,
.rsd-article-body {
  background: var(--rsd-print);
  border: 1px solid var(--rsd-rule);
}

.rsd-negative-rail {
  position: sticky;
  top: 16px;
  display: grid;
  gap: 8px;
  padding: 14px;
}

.rsd-negative-rail span {
  display: block;
  padding: 12px 8px;
  background: var(--rsd-black);
  color: #e8eeee;
  font-family: var(--rsd-mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: 10px;
  text-align: center;
}

.rsd-article-body {
  padding: clamp(26px, 5vw, 58px);
  font-size: 18px;
  line-height: 1.72;
}

.rsd-article-body > *:first-child { margin-top: 0; }
.rsd-article-body > *:last-child { margin-bottom: 0; }

.rsd-article-body h2,
.rsd-article-body h3 {
  font-family: var(--rsd-display);
  letter-spacing: -.04em;
  line-height: 1.05;
  margin-top: 1.6em;
}

.rsd-article-body h2 { font-size: 38px; }
.rsd-article-body h3 { font-size: 28px; }

.rsd-article-body p { margin: 0 0 1.15em; }
.rsd-article-body a { color: var(--rsd-safelight); }

.rsd-article-body blockquote {
  margin: 1.6em 0;
  padding: 18px 22px;
  border-left: 8px solid var(--rsd-fixer);
  background: #f3f6f6;
  color: #223033;
}

.rsd-leak-panel {
  position: sticky;
  top: 16px;
  padding: 18px;
}

.rsd-leak-panel h2 {
  margin: 0 0 14px;
  font-family: var(--rsd-mono);
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: 12px;
  color: var(--rsd-safelight);
}

.rsd-leak-panel ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.rsd-leak-panel li {
  padding: 12px 0;
  border-top: 1px solid var(--rsd-rule);
  color: var(--rsd-muted);
  font-size: 14px;
}

@media (max-width: 900px) {
  .rsd-masthead { min-height: auto; }
  .rsd-hero-grid,
  .rsd-feature,
  .rsd-article-frame { grid-template-columns: 1fr; }
  .rsd-apertures,
  .rsd-density ol,
  .rsd-card-grid { grid-template-columns: 1fr; }
  .rsd-negative-rail,
  .rsd-leak-panel { position: static; }
  .rsd-negative-rail { grid-template-columns: repeat(5, 1fr); }
}

@media (max-width: 560px) {
  .rsd-site,
  .rsd-article { padding: 10px; }
  .rsd-masthead { padding: 16px; box-shadow: inset 7px 0 0 var(--rsd-black); }
  .rsd-topline { flex-direction: column; }
  .rsd-description-block { font-size: 16px; }
  .rsd-exposure-strip { gap: 4px; padding: 8px; }
  .rsd-negative-rail { grid-template-columns: 1fr; }
}