/* ============================================================
   NEWSLETTER REPORT — Capital Stacks design system
   Ink on a cream sheet over stone canvas, Source Serif 4 headlines,
   3px ink rules between bands, zero radius, hard shadows only.
   Tokens come from ds/capital-stacks/ (--cs-*, --font-*, --border-*).
   ============================================================ */

* { box-sizing: border-box; }
html, body { margin: 0; }

:root {
  /* Names the shared section files still use in inline styles, mapped onto the system */
  --ink: var(--cs-ink);
  --ink-soft: var(--cs-muted);
  --paper: var(--cs-cream);
  --paper-2: var(--cs-paper);
  --paper-3: var(--cs-paper);
  --accent: var(--cs-peri-dark);
  --accent-soft: var(--cs-lav);
  --nav-h: 46px;
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-ui);
  line-height: var(--lh-body);
  background: var(--cs-canvas);
  color: var(--cs-ink);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p, ul, ol, figure, blockquote, dl, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; border-radius: 0; }
a:focus-visible, button:focus-visible, tr:focus-visible { outline: 2px solid var(--cs-peri-dark); outline-offset: 2px; }

/* The sheet */
#root {
  max-width: var(--sheet-max);
  margin: 0 auto;
  min-height: 100vh;
  background: var(--cs-cream);
  border-left: var(--border-frame);
  border-right: var(--border-frame);
  border-bottom: var(--border-frame);
}
.shell { padding: 0 var(--pad-x); }
section { scroll-margin-top: var(--nav-h); }

/* ---- Header: title row scrolls away, nav stays ---- */
.cs-header {
  position: sticky; top: -61px; z-index: 50;
  background: var(--cs-cream);
}
.cs-header-title {
  display: grid; grid-template-columns: auto minmax(0, 1fr) auto;
  height: 61px;
  border-bottom: var(--border-frame);
}
.cs-header-mark {
  padding: 0 18px; display: flex; align-items: center;
  border-right: var(--border-frame);
}
.cs-header-mark img { width: 28px; height: 28px; display: block; }
.cs-header-name {
  padding: 0 20px; display: flex; align-items: center; min-width: 0;
}
.cs-header-name span {
  font-family: var(--font-serif); font-weight: var(--fw-serif-bold);
  font-size: clamp(17px, 2vw, 22px); line-height: 1; letter-spacing: -.01em;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.cs-header-credit {
  padding: 0 20px; border-left: var(--border-frame);
  display: flex; flex-direction: column; justify-content: center; gap: 5px;
  font-size: var(--fs-eyebrow); font-weight: var(--fw-eyebrow);
  letter-spacing: var(--ls-eyebrow); text-transform: uppercase;
  color: var(--cs-muted); line-height: 1;
}
.cs-header-issue { font-family: var(--font-mono); letter-spacing: .06em; color: var(--cs-ink); }

.cs-nav {
  display: flex; align-items: stretch;
  min-height: var(--nav-h);
  border-bottom: var(--border-frame);
}
.cs-tab {
  flex: 1 1 0; min-width: 0;
  display: flex; align-items: center; justify-content: center;
  padding: 0 12px;
  font-weight: var(--fw-label); font-size: var(--fs-label);
  letter-spacing: var(--ls-nav); text-transform: uppercase; white-space: nowrap;
}
.cs-tab + .cs-tab { border-left: var(--border-grid); }
.cs-tab:hover, .cs-tab.is-active { background: var(--cs-peach); }
.cs-nav-sponsor {
  display: none; flex: none; align-items: center; gap: 10px;
  padding: 0 16px; border-left: var(--border-grid);
  background: var(--cs-paper);
}
.cs-nav.is-docked .cs-nav-sponsor { display: flex; }
.cs-nav-sponsor:hover { background: var(--cs-peach); }
.cs-nav-sponsor-label {
  font-size: var(--fs-eyebrow); font-weight: var(--fw-eyebrow);
  letter-spacing: var(--ls-eyebrow); text-transform: uppercase; color: var(--cs-muted);
}
.cs-nav-sponsor img { display: block; height: 20px; width: auto; }
.scroll-progress {
  position: absolute; left: 0; bottom: 0;
  height: 3px; width: 0; background: var(--cs-peri);
}

/* ---- Shared labels ---- */
.eyebrow {
  font-size: var(--fs-label); font-weight: var(--fw-eyebrow);
  letter-spacing: var(--ls-eyebrow); text-transform: uppercase;
  color: var(--text-eyebrow);
}
.section-tag {
  font-size: var(--fs-label); font-weight: var(--fw-label);
  letter-spacing: var(--ls-eyebrow); text-transform: uppercase;
  color: var(--cs-muted);
}
.section-tag em {
  font-style: normal; font-family: var(--font-mono); font-weight: 500;
  letter-spacing: .04em; color: var(--cs-peri-dark); margin-right: 10px;
}

/* ---- Hero ---- */
.hero {
  padding: var(--pad-y-lg) 0;
  border-bottom: var(--border-frame);
}
.hero .shell {
  display: grid; grid-template-columns: minmax(0, 1fr) 380px;
  gap: var(--gap-grid); align-items: end;
}
.hero h1 {
  margin-top: 24px;
  font-family: var(--font-serif); font-weight: var(--fw-serif-bold);
  font-size: clamp(44px, 6.6vw, 88px); line-height: .95;
  letter-spacing: var(--ls-display); max-width: 13ch;
  text-wrap: pretty;
}
.hero h1 em { font-style: normal; color: var(--cs-peri-dark); }
.hero-deck {
  margin-top: 28px; max-width: 56ch;
  font-family: var(--font-serif); font-weight: var(--fw-serif-regular);
  font-size: clamp(18px, 1.7vw, 22px); line-height: var(--lh-lede);
  text-wrap: pretty;
}
.hero-meta {
  margin-top: 36px;
  display: flex; gap: 32px; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: var(--fs-label);
  color: var(--cs-muted); text-transform: uppercase; letter-spacing: .08em;
}
.hero-meta span b {
  display: block; margin-top: 4px;
  font-family: var(--font-sans); font-size: var(--fs-small); font-weight: 600;
  color: var(--cs-ink); text-transform: none; letter-spacing: 0;
}
.hero-stats {
  display: grid; gap: 1px;
  background: var(--cs-ink);
  border: var(--border-frame);
}
.hero-stat {
  display: grid; grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center; gap: 18px;
  padding: 18px 20px;
  background: var(--cs-paper);
}
.hero-stat .num {
  font-family: var(--font-serif); font-weight: var(--fw-serif-bold);
  font-size: 56px; line-height: .9; letter-spacing: var(--ls-display);
}
.hero-stat .label {
  font-size: var(--fs-eyebrow); font-weight: var(--fw-eyebrow);
  letter-spacing: var(--ls-eyebrow); text-transform: uppercase;
  color: var(--cs-muted); text-align: right; max-width: 13ch; line-height: 1.35;
}

/* ---- Sponsor strip ---- */
.sponsor-strip {
  padding: var(--pad-y-sm) 0;
  border-bottom: var(--border-frame);
  background: var(--cs-paper);
}
.sponsor-strip-inner {
  display: grid; grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--gap-grid); align-items: center;
}
.sponsor-strip-copy { max-width: 78ch; }
.sponsor-strip-copy .section-tag { margin-bottom: 12px; }
.sponsor-strip-copy p {
  font-size: var(--fs-ui); line-height: 1.55; color: var(--cs-muted);
  text-wrap: pretty;
}
.sponsor-strip-copy p + p { margin-top: 12px; }
.sponsor-strip-copy p strong { color: var(--cs-ink); font-weight: 600; }
.sponsor-strip-cta {
  display: inline-flex; align-items: center; gap: 20px;
  margin: 22px 5px 5px 0; padding: 13px 20px; max-width: 560px;
  background: var(--action-primary); color: #fff;
  border: var(--border-frame); box-shadow: var(--shadow-btn);
}
.sponsor-strip-cta:hover { background: var(--action-hover); color: var(--cs-cream); }
.sponsor-strip-cta-text { display: flex; flex-direction: column; gap: 6px; }
.sponsor-strip-cta-sub {
  font-family: var(--font-mono); font-size: var(--fs-eyebrow); line-height: 1.4;
  letter-spacing: .04em; text-transform: uppercase;
}
.sponsor-strip-cta-title {
  font-size: 13px; font-weight: var(--fw-label);
  letter-spacing: var(--ls-label); text-transform: uppercase;
}
.sponsor-strip-cta-arrow { flex: none; font-size: 16px; line-height: 1; }
.sponsor-strip-mark { display: block; }
.sponsor-strip-mark img { display: block; height: 88px; width: auto; }

/* ---- Section band + heading ---- */
.section {
  padding: var(--pad-y-lg) 0;
  border-bottom: var(--border-frame);
}
.section-head {
  display: grid; grid-template-columns: 240px minmax(0, 1fr);
  gap: var(--gap-grid);
  margin-bottom: clamp(28px, 4vw, 48px);
}
.section-head .section-tag { padding-top: 8px; }
.section-head h2 {
  font-family: var(--font-serif); font-weight: var(--fw-serif-bold);
  font-size: var(--fs-h2); line-height: var(--lh-heading);
  letter-spacing: var(--ls-h2); max-width: 22ch;
  text-wrap: pretty;
}
.section-head .lede {
  margin-top: 18px; max-width: 60ch;
  font-family: var(--font-serif); font-weight: var(--fw-serif-regular);
  font-size: var(--fs-body); line-height: var(--lh-body);
  text-wrap: pretty;
}
.section-head .section-note {
  margin-top: 18px; max-width: 64ch;
  padding: 12px 14px;
  border: var(--border-fine); background: var(--cs-paper);
  font-size: var(--fs-caption); line-height: 1.5; color: var(--cs-muted);
}
.section-head .section-note span {
  display: inline-block; margin-right: 10px;
  font-size: var(--fs-eyebrow); font-weight: var(--fw-label);
  letter-spacing: var(--ls-eyebrow); text-transform: uppercase; color: var(--cs-ink);
}

/* ---- Sample ---- */
.sample-grid {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--gap-grid); align-items: start;
}
.country-list, .sample-pubs { display: grid; border-top: var(--border-fine); }
.country-row {
  display: grid; grid-template-columns: 28px minmax(0, 1fr) minmax(0, 1fr) 44px;
  align-items: center; gap: 14px;
  padding: 12px 0;
  border-bottom: var(--border-hair);
}
.country-row .rank {
  font-family: var(--font-mono); font-size: var(--fs-mono); color: var(--cs-muted);
}
.country-row .name { font-size: var(--fs-ui); font-weight: 500; line-height: 1.25; }
.country-row .name small {
  display: block; margin-top: 3px;
  font-size: var(--fs-eyebrow); font-weight: var(--fw-eyebrow);
  letter-spacing: var(--ls-label); text-transform: uppercase; color: var(--cs-muted);
}
.country-row .bar { height: 14px; }
.country-row .bar span, .topic-row .bar span {
  display: block; height: 100%;
  background: var(--cs-peri); border: var(--border-fine);
}
.country-row .count, .pub-row .pub-count, .topic-row .count {
  font-family: var(--font-mono); font-size: 13px; font-weight: 500; text-align: right;
}
.pub-row {
  display: grid; grid-template-columns: minmax(0, 1fr) 60px;
  align-items: baseline; gap: 14px;
  padding: 11px 0;
  border-bottom: var(--border-hair);
  font-size: var(--fs-small);
}
.pub-row .pub-name { font-weight: 500; }
.pub-row .pub-name small {
  display: block; margin-top: 2px;
  font-size: var(--fs-label); font-weight: 400; color: var(--cs-muted);
}
.sample-grid p { color: var(--cs-muted) !important; }
.sample-grid p a { color: var(--text-link) !important; font-weight: 600; }

/* ---- Why newsletters matter: the periwinkle proof band ---- */
#findings { background: var(--surface-feature); color: #fff; }
#findings .section-tag, #findings .section-tag em { color: var(--cs-cream); }
#findings .lede { color: var(--cs-cream); }
.thesis-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--cs-cream);
  border: 1px solid var(--cs-cream);
}
.thesis-card {
  display: flex; flex-direction: column; gap: 12px;
  min-height: 190px;
  padding: clamp(22px, 2.8vw, 36px) clamp(20px, 2.4vw, 32px);
  background: var(--cs-peri-dark);
}
.thesis-card:hover { background: var(--cs-ink); }
.thesis-card .num {
  font-family: var(--font-mono); font-size: var(--fs-mono); color: var(--cs-cream);
  margin-bottom: auto; padding-bottom: 20px;
}
.thesis-card h3 {
  font-family: var(--font-serif); font-weight: var(--fw-serif-bold);
  font-size: var(--fs-h3); line-height: var(--lh-card); letter-spacing: var(--ls-h3);
}
.thesis-card p {
  font-size: var(--fs-caption); line-height: 1.45; color: var(--cs-cream);
  text-wrap: pretty;
}

/* ---- Bar charts (figure frame) ---- */
.bars {
  padding: 4px 20px;
  border: var(--border-fine); background: var(--cs-paper);
}
.bar-row {
  display: grid; grid-template-columns: 220px minmax(0, 1fr) 60px;
  align-items: center; gap: 0 20px;
  min-height: 60px; padding: 10px 0;
  border-top: 1px solid var(--cs-rule-soft);
}
.bar-row:first-child { border-top: 0; }
.bar-row .label { font-size: var(--fs-small); font-weight: 500; line-height: 1.25; }
.bar-row .label small {
  display: block; margin-top: 4px;
  font-size: var(--fs-eyebrow); font-weight: var(--fw-eyebrow);
  letter-spacing: var(--ls-label); text-transform: uppercase; color: var(--cs-muted);
}
.bar-row .bar { height: 20px; }
.bar-row .bar span {
  display: block; height: 100%;
  background: var(--cs-peri); border: var(--border-fine);
  transform-origin: left;
  animation: cs-grow-x var(--dur-grow) var(--ease-grow) both;
}
.bar-row.is-accent .bar span { background: var(--cs-ochre); }
.bar-row .pct {
  font-family: var(--font-mono); font-size: 15px; font-weight: 500; text-align: right;
}

.chart-foot {
  margin-top: 28px;
  display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: var(--gap-grid);
}
.chart-foot p {
  font-size: var(--fs-small); line-height: 1.55; max-width: 64ch;
  text-wrap: pretty;
}
.chart-foot p::before {
  content: "Read"; display: inline-block;
  margin-right: 12px; padding: 2px 7px;
  border: var(--border-fine);
  font-size: var(--fs-eyebrow); font-weight: var(--fw-label);
  letter-spacing: var(--ls-label); text-transform: uppercase;
  vertical-align: 2px;
}

/* ---- Access: free is periwinkle, paid is the warm family ---- */
#access {
  --ink: var(--cs-peri);
  --accent: var(--cs-ochre);
  --accent-soft: var(--cs-peach);
  --paper-3: var(--cs-cream);
}
.access-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px;
  align-items: stretch;
}
.donut-card, .paid-topics-card {
  padding: 18px 20px 20px;
  border: var(--border-fine); background: var(--cs-paper);
}
.donut-card { display: grid; gap: 20px; align-content: start; }
.donut-card h3, .paid-topics-head h3 {
  font-family: var(--font-serif); font-weight: var(--fw-serif-bold);
  font-size: 18px; line-height: 1.2; letter-spacing: -.01em;
}
.donut-row {
  display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 24px; align-items: center;
}
.donut { position: relative; display: grid; place-items: center; }
.donut svg path { stroke: var(--cs-ink); stroke-width: 1; }
.donut::after {
  content: ""; position: absolute;
  width: 108px; height: 108px; border-radius: 50%;
  background: var(--cs-paper); border: var(--border-fine);
}
.donut .donut-center {
  position: absolute; z-index: 1;
  display: grid; place-items: center; gap: 4px; text-align: center;
}
.donut .donut-center b {
  font-family: var(--font-serif); font-weight: var(--fw-serif-bold);
  font-size: 30px; line-height: 1; letter-spacing: var(--ls-h3);
}
.donut .donut-center small {
  font-size: var(--fs-eyebrow); font-weight: var(--fw-eyebrow);
  letter-spacing: var(--ls-label); text-transform: uppercase; color: var(--cs-muted);
}
.donut-legend { display: grid; align-content: center; }
.legend-item {
  display: grid; grid-template-columns: 12px minmax(0, 1fr) auto; gap: 12px;
  align-items: center;
  padding: 9px 0;
  border-bottom: 1px solid var(--cs-rule-soft);
  font-size: var(--fs-caption);
}
.legend-item:last-child { border-bottom: 0; }
.legend-item .swatch { width: 12px; height: 12px; border: var(--border-fine); }
.legend-item .name { font-weight: 500; }
.legend-item .name small { display: block; margin-top: 2px; font-size: var(--fs-label); font-weight: 400; color: var(--cs-muted); }
.legend-item .v { font-family: var(--font-mono); font-weight: 500; }

.paid-topics-card {
  margin-top: 24px;
  display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: var(--gap-grid); align-items: start;
}
.paid-topics-head h3 { margin-bottom: 10px; }
.paid-topics-sub { font-size: var(--fs-caption); line-height: 1.5; color: var(--cs-muted); max-width: 32ch; }
.paid-topic-bars { display: grid; }
.paid-topic-row {
  display: grid; grid-template-columns: 170px minmax(0, 1fr) 36px 44px;
  gap: 0 14px; align-items: center;
  min-height: 30px;
  border-top: 1px solid var(--cs-rule-soft);
  font-size: var(--fs-mono);
}
.paid-topic-row:first-child { border-top: 0; }
.paid-topic-label { font-size: var(--fs-caption); font-weight: 500; }
.paid-topic-track { display: block; height: 14px; }
.paid-topic-fill {
  display: block; height: 100%;
  background: var(--cs-ochre); border: var(--border-fine);
}
.paid-topic-count { font-family: var(--font-mono); text-align: right; font-weight: 500; }
.paid-topic-pct { font-family: var(--font-mono); text-align: right; color: var(--cs-muted); }

/* ---- Cadence ---- */
.cadence-grid {
  display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 24px;
  align-items: stretch;
}
.cadence-bars {
  display: grid; grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 14px; align-items: end; height: 340px;
  padding: 20px;
  border: var(--border-fine); background: var(--cs-paper);
}
.cadence-col {
  display: grid; grid-template-rows: auto 1fr auto; gap: 8px;
  height: 100%; text-align: center;
  align-items: end; justify-items: center;
}
.cadence-col .col-num {
  align-self: end;
  font-family: var(--font-mono); font-size: var(--fs-mono); color: var(--cs-ink);
}
.cadence-col .col-bar {
  align-self: end; width: 100%; min-height: 4px;
  background: var(--cs-peri); border: var(--border-fine);
}
.cadence-col.is-peak .col-bar { background: var(--cs-ochre); }
.cadence-col .col-label {
  font-size: var(--fs-eyebrow); font-weight: var(--fw-label);
  letter-spacing: var(--ls-label); text-transform: uppercase;
}
.cadence-callout {
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 24px;
  border: var(--border-frame); background: var(--surface-warm);
}
.cadence-callout .num {
  font-family: var(--font-serif); font-weight: var(--fw-serif-bold);
  font-size: 72px; line-height: .9; letter-spacing: var(--ls-display);
}
.cadence-callout p { margin-top: 14px; font-size: var(--fs-small); line-height: 1.5; }

/* ---- Send-day heatmap: an ink-seam grid ---- */
.heatmap {
  --accent: var(--cs-peri);
  --paper-2: var(--cs-paper);
  display: grid; gap: 1px;
  grid-template-columns: 110px repeat(7, minmax(0, 1fr));
  background: var(--cs-ink);
  border: var(--border-fine);
}
.heatmap > * { background: var(--cs-cream); }
.heatmap .day-label {
  padding: 10px 4px;
  font-family: var(--font-mono); font-size: var(--fs-eyebrow);
  letter-spacing: .08em; text-transform: uppercase; text-align: center; color: var(--cs-muted);
}
.heatmap .row-label {
  display: flex; align-items: center; justify-content: flex-end;
  padding: 0 12px;
  font-size: var(--fs-caption); font-weight: 500; text-align: right;
}
.heatmap .cell {
  height: 56px;
  display: grid; place-items: center;
  font-family: var(--font-mono); font-size: var(--fs-mono); font-weight: 500;
  color: var(--cs-ink) !important;
}
.heatmap .cell:hover { outline: 2px solid var(--cs-ink); outline-offset: -2px; }
.heatmap .cell.is-empty { background: var(--cs-paper); color: var(--cs-muted) !important; }

/* ---- Topic ranking ---- */
.topic-list { display: grid; border-top: var(--border-fine); }
.topic-row {
  display: grid; grid-template-columns: 32px minmax(0, 1fr) minmax(120px, 320px) 48px 52px;
  align-items: center; gap: 18px;
  padding: 13px 0;
  border-bottom: var(--border-hair);
}
.topic-row .rank { font-family: var(--font-mono); font-size: var(--fs-mono); color: var(--cs-muted); }
.topic-row .name { font-size: var(--fs-ui); font-weight: 500; }
.topic-row .bar { height: 14px; }
.topic-row.is-top .bar span { background: var(--cs-ochre); }
.topic-row .pct {
  font-family: var(--font-mono); font-size: var(--fs-mono); text-align: right; color: var(--cs-muted);
}

/* ---- Synthesis: the peach band ---- */
.synthesis {
  padding: var(--pad-y-lg) 0;
  background: var(--surface-warm);
  border-bottom: var(--border-frame);
}
.synthesis .shell {
  display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: var(--gap-grid);
}
.synthesis .section-tag { padding-top: 8px; color: var(--cs-ink); }
.synthesis .section-tag em { color: var(--cs-ink); }
.synthesis blockquote {
  font-family: var(--font-serif); font-weight: var(--fw-serif-bold);
  font-size: clamp(26px, 3.2vw, 42px); line-height: 1.08;
  letter-spacing: var(--ls-h2); max-width: 28ch;
  text-wrap: pretty;
}
.synthesis blockquote em { font-style: normal; color: var(--cs-peri-dark); }
.synthesis-body {
  margin-top: 32px; padding-top: 28px;
  border-top: var(--border-fine);
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--gap-grid);
}
.synthesis-body p { font-size: var(--fs-ui); line-height: 1.6; text-wrap: pretty; }

/* ---- Explorer ---- */
.explorer {
  padding: var(--pad-y-lg) 0;
  border-bottom: var(--border-frame);
}
.explorer-controls {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px; margin-bottom: 18px;
}
.explorer-controls input { grid-column: 1 / -1; }
.explorer-controls input,
.explorer-controls select {
  width: 100%;
  font-family: var(--font-sans); font-size: var(--fs-ui); color: var(--cs-ink);
  padding: 12px 14px;
  border: var(--border-grid); border-radius: 0;
  background-color: var(--surface-field);
  outline: none;
}
.explorer-controls input::placeholder { color: var(--cs-muted); opacity: 1; }
.explorer-controls select {
  appearance: none; -webkit-appearance: none;
  padding-right: 36px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0h10L5 6z' fill='%2316151B'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
}
.explorer-controls input:focus,
.explorer-controls select:focus { box-shadow: var(--shadow-focus); }
.explorer-meta {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  margin-bottom: 14px;
  font-family: var(--font-mono); font-size: var(--fs-label);
  color: var(--cs-muted); text-transform: uppercase; letter-spacing: .08em;
}
.explorer-meta b { color: var(--cs-ink); font-weight: 600; }
.explorer-meta-right { display: inline-flex; gap: 16px; align-items: center; }
.exp-reset, .exp-pager button {
  padding: 9px 14px;
  border: var(--border-fine); background: transparent; color: var(--cs-ink);
  font-family: var(--font-sans); font-size: var(--fs-eyebrow); font-weight: var(--fw-label);
  letter-spacing: var(--ls-label); text-transform: uppercase;
}
.exp-reset:hover, .exp-pager button:hover:not(:disabled) { background: var(--cs-ink); color: var(--cs-cream); }
.exp-pager button:disabled { opacity: .4; cursor: default; }

.exp-table-wrap { overflow-x: auto; border: var(--border-fine); }
.exp-table {
  width: 100%; border-collapse: collapse;
  background: var(--cs-paper);
}
.exp-table thead th {
  padding: 12px 16px; text-align: left; white-space: nowrap;
  background: var(--surface-inverse); color: var(--cs-cream);
  font-size: var(--fs-eyebrow); font-weight: var(--fw-label);
  letter-spacing: var(--ls-label); text-transform: uppercase;
}
.exp-table thead th.sort { cursor: pointer; user-select: none; }
.exp-table thead th.sort:hover, .exp-table thead th.is-active { color: var(--cs-peach); }
.exp-table .sort-ind { display: inline-block; margin-left: 6px; }
.exp-table tbody td {
  padding: 12px 16px;
  border-top: var(--border-hair);
  font-size: var(--fs-caption); vertical-align: top;
}
.exp-table tbody tr { cursor: pointer; }
.exp-table tbody tr.exp-row:hover,
.exp-table tbody tr.exp-row:focus-visible { background: var(--cs-ink); color: var(--cs-cream); }
.exp-table tbody tr.exp-row:hover .nl-name small,
.exp-table tbody tr.exp-row:focus-visible .nl-name small { color: var(--cs-cream); }
.exp-table tbody tr.exp-row:hover .tag,
.exp-table tbody tr.exp-row:focus-visible .tag { background: transparent; color: var(--cs-cream); border-color: var(--cs-cream); }
.exp-table .nl-name { font-weight: 600; max-width: 280px; }
.exp-table .nl-name small {
  display: block; margin-top: 3px;
  font-size: var(--fs-label); font-weight: 400; color: var(--cs-muted);
}
.exp-table .exp-empty {
  padding: 40px; text-align: center; color: var(--cs-muted); cursor: default;
}
.exp-pager {
  margin-top: 20px;
  display: flex; gap: 8px; align-items: center; justify-content: center; flex-wrap: wrap;
}
.exp-pager-state {
  padding: 0 12px;
  font-family: var(--font-mono); font-size: var(--fs-mono); color: var(--cs-muted);
}
.tag {
  display: inline-block; padding: 2px 7px;
  border: var(--border-fine); background: transparent;
  font-family: var(--font-mono); font-size: var(--fs-label); font-weight: 500;
}
.tag.is-paid { background: var(--cs-peach); }

/* ---- Footer ---- */
.site-footer { background: var(--cs-cream); }
.site-footer .shell {
  display: grid; grid-template-columns: 1.2fr 1fr 1fr;
  padding: 0;
}
.site-footer .shell > div { padding: clamp(24px, 3vw, 40px) var(--pad-x); }
.site-footer .shell > div + div { border-left: var(--border-grid); }
.site-footer h3 {
  font-family: var(--font-serif); font-weight: var(--fw-serif-bold);
  font-size: var(--fs-h3); line-height: var(--lh-card); letter-spacing: var(--ls-h3);
  max-width: 18ch; text-wrap: pretty;
}
.site-footer p { font-size: var(--fs-caption); line-height: 1.5; color: var(--cs-muted); }
.site-footer p[style] { font-family: var(--font-mono) !important; color: var(--cs-ink); }
.site-footer ul { display: grid; gap: 6px; font-size: var(--fs-small); justify-items: start; }
.site-footer li a { padding: 1px 4px; margin-left: -4px; }
.site-footer li a:hover { background: var(--cs-ink); color: var(--cs-cream); }

/* ---- Newsletter detail drawer ---- */
.drawer-root { position: fixed; inset: 0; z-index: 200; pointer-events: none; }
.drawer-root.is-open { pointer-events: auto; }
.drawer-backdrop {
  position: absolute; inset: 0;
  background: var(--cs-scrim);
  opacity: 0; transition: opacity .22s;
  pointer-events: none;
}
.drawer-root.is-open .drawer-backdrop { opacity: 1; pointer-events: auto; }
.drawer {
  position: absolute; right: 0; top: 0; bottom: 0;
  width: min(560px, 100vw);
  display: flex; flex-direction: column; overflow-y: auto;
  background: var(--cs-paper); color: var(--cs-ink);
  border-left: var(--border-frame);
  font-family: var(--font-sans);
  transform: translateX(100%);
  transition: transform var(--dur-drawer) var(--ease-drawer);
}
.drawer-root.is-open .drawer { transform: translateX(0); }
.drawer-head {
  padding: 22px 28px 22px;
  background: var(--cs-cream);
  border-bottom: var(--border-frame);
}
.drawer-eyebrow {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 18px;
}
.drawer-tag {
  font-size: var(--fs-eyebrow); font-weight: var(--fw-eyebrow);
  letter-spacing: var(--ls-eyebrow); text-transform: uppercase; color: var(--cs-peri-dark);
}
.drawer-close {
  width: 32px; height: 32px;
  display: inline-flex; align-items: center; justify-content: center;
  border: var(--border-fine); background: var(--cs-paper);
  font-size: 13px; color: var(--cs-ink);
}
.drawer-close:hover { background: var(--cs-ink); color: var(--cs-cream); }
.drawer-title {
  font-family: var(--font-serif); font-weight: var(--fw-serif-bold);
  font-size: 28px; line-height: var(--lh-card); letter-spacing: var(--ls-h3);
}
.drawer-name-original {
  margin-top: 6px;
  font-family: var(--font-serif); font-style: italic; font-size: var(--fs-small); color: var(--cs-muted);
}
.drawer-publisher {
  margin-top: 16px; padding-top: 14px;
  border-top: var(--border-fine);
  display: flex; align-items: baseline; gap: 10px;
  font-size: var(--fs-caption);
}
.drawer-publisher-label, .drawer-key {
  font-size: var(--fs-eyebrow); font-weight: var(--fw-label);
  letter-spacing: var(--ls-eyebrow); text-transform: uppercase; color: var(--cs-muted);
}
.drawer-publisher b { font-weight: 600; }
.drawer-section { padding: 22px 28px; border-bottom: var(--border-fine); }
.drawer-section:last-of-type { border-bottom: 0; }
.drawer-desc p {
  font-family: var(--font-serif); font-size: 16px; line-height: var(--lh-body);
  text-wrap: pretty;
}
.drawer-key { margin-bottom: 6px; }
.drawer-key-block { margin-bottom: 12px; }
.drawer-val { font-size: var(--fs-small); font-weight: 500; }
.drawer-sub { margin-top: 4px; font-size: var(--fs-mono); color: var(--cs-muted); }
.drawer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 24px; }
.drawer-days {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 1px;
  background: var(--cs-ink); border: var(--border-fine);
}
.drawer-day {
  height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: var(--fs-mono); font-weight: 600;
  color: var(--cs-muted); background: var(--cs-paper);
}
.drawer-day.is-on { background: var(--cs-peri-dark); color: #fff; }
.drawer-pub { background: var(--cs-cream); }
.drawer-dl { display: grid; }
.drawer-dl > div {
  display: grid; grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px; align-items: baseline;
  padding: 10px 0;
  border-bottom: var(--border-hair);
  font-size: var(--fs-caption);
}
.drawer-dl > div:last-child { border-bottom: 0; }
.drawer-dl dt { color: var(--cs-muted); }
.drawer-dl dd { font-weight: 500; text-align: right; }
.drawer-link {
  display: inline-block; margin-top: 16px; padding: 9px 14px;
  border: var(--border-fine);
  font-size: var(--fs-eyebrow); font-weight: var(--fw-label);
  letter-spacing: var(--ls-label); text-transform: uppercase;
}
.drawer-link:hover { background: var(--cs-ink); color: var(--cs-cream); }
.drawer-foot {
  margin-top: auto;
  padding: 12px 28px;
  display: flex; justify-content: space-between; align-items: center;
  background: var(--surface-inverse); color: var(--cs-cream);
  font-family: var(--font-mono); font-size: var(--fs-eyebrow); letter-spacing: .08em;
  text-transform: uppercase;
}
.drawer-foot kbd {
  font-family: inherit; font-size: inherit;
  padding: 1px 5px; border: 1px solid var(--cs-cream);
}

@media (prefers-reduced-motion: reduce) {
  .bar-row .bar span { animation: none; }
  .drawer, .drawer-backdrop { transition: none; }
}

/* ============================================================
   RESPONSIVE — two-column grids collapse at 880px, phone at 600px
   ============================================================ */

@media (max-width: 880px) {
  .cs-header-credit { display: none; }
  .cs-nav { overflow-x: auto; scrollbar-width: none; }
  .cs-nav::-webkit-scrollbar { display: none; }
  .cs-tab { flex: none; padding: 0 16px; }
  .cs-nav-sponsor-label { display: none; }
  .cs-nav-sponsor { position: sticky; right: 0; }

  .hero .shell { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .hero h1 { max-width: none; }
  .sponsor-strip-inner { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .sponsor-strip-mark img { height: 64px; }

  .section-head { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .section-head .section-tag { padding-top: 0; }
  .section-head h2 { max-width: none; }

  .sample-grid { grid-template-columns: minmax(0, 1fr); }
  .thesis-grid { grid-template-columns: minmax(0, 1fr); }
  .thesis-card { min-height: 0; }
  .thesis-card .num { padding-bottom: 8px; }

  .bar-row { grid-template-columns: minmax(0, 1fr); gap: 8px; padding: 12px 0; }
  .bar-row > .label { padding-right: 60px; }
  .bar-row .pct { grid-row: 1; grid-column: 1; justify-self: end; align-self: start; }
  .chart-foot { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .chart-foot > div:empty { display: none; }

  .access-grid { grid-template-columns: minmax(0, 1fr); }
  .paid-topics-card { grid-template-columns: minmax(0, 1fr); gap: 18px; }

  .cadence-grid { grid-template-columns: minmax(0, 1fr); }
  .cadence-bars { height: 260px; gap: 8px; padding: 16px 12px; }
  .cadence-callout .num { font-size: 56px; }

  .heatmap-wrap { overflow-x: auto; }
  .heatmap { min-width: 520px; grid-template-columns: 84px repeat(7, minmax(0, 1fr)); }
  .heatmap .cell { height: 44px; }

  .topic-row {
    grid-template-columns: 24px minmax(0, 1fr) 52px;
    grid-template-areas:
      "rank name count"
      ".    bar  pct";
    gap: 6px 12px;
  }
  .topic-row > .rank { grid-area: rank; }
  .topic-row > .name { grid-area: name; }
  .topic-row > .bar { grid-area: bar; }
  .topic-row > .count { grid-area: count; }
  .topic-row > .pct { grid-area: pct; }

  .synthesis .shell { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .synthesis .section-tag { padding-top: 0; }
  .synthesis blockquote { max-width: none; }
  .synthesis-body { grid-template-columns: minmax(0, 1fr); gap: 20px; }

  .explorer-controls { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .explorer-meta { flex-wrap: wrap; }
  .exp-table thead th, .exp-table tbody td { padding: 10px 12px; }

  .site-footer .shell { grid-template-columns: minmax(0, 1fr); }
  .site-footer .shell > div + div { border-left: 0; border-top: var(--border-grid); }
}

@media (max-width: 600px) {
  :root { --pad-x: 16px; }

  .cs-header-mark { padding: 0 14px; }
  .cs-header-name { padding: 0 14px; }
  .cs-header-name span { font-size: 16px; }

  .hero h1 { font-size: 40px; }
  .hero-meta { gap: 20px; }
  .hero-stat { padding: 14px 16px; gap: 14px; }
  .hero-stat .num { font-size: 42px; }

  .sponsor-strip-cta { gap: 14px; padding: 12px 16px; }

  .country-row { grid-template-columns: 22px minmax(0, 1.4fr) minmax(0, 1fr) 36px; gap: 10px; }
  .bars { padding: 4px 14px; }

  .donut-card, .paid-topics-card { padding: 16px; }
  .donut-row { grid-template-columns: minmax(0, 1fr); justify-items: center; }
  .donut-legend { width: 100%; }
  .paid-topic-row {
    grid-template-columns: minmax(0, 1fr) 32px 40px;
    grid-template-areas: "label count pct" "track track track";
    gap: 4px 10px; padding: 8px 0;
  }
  .paid-topic-label { grid-area: label; }
  .paid-topic-track { grid-area: track; height: 10px; }
  .paid-topic-count { grid-area: count; }
  .paid-topic-pct { grid-area: pct; }

  .cadence-bars { height: 220px; gap: 5px; padding: 14px 8px; }
  .cadence-col .col-num { font-size: 10px; }
  .cadence-col .col-label { font-size: 8px; letter-spacing: .04em; }

  .explorer-controls { grid-template-columns: minmax(0, 1fr); }
  .explorer-meta-right { flex-wrap: wrap; gap: 10px; }
  .exp-table .nl-name { max-width: 180px; }

  .drawer-head { padding: 18px 16px; }
  .drawer-section { padding: 18px 16px; }
  .drawer-foot { padding: 12px 16px; }
  .drawer-title { font-size: 24px; }
}