/* Channel Index — research-report-specific styles */
.ci-body {
  font-family: var(--font-text);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

/* Top ribbon */
.ci-ribbon {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px var(--pad-x);
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mute);
  background: var(--bg);
}
.ci-ribbon a { color: var(--ink); border-bottom: 1px solid var(--sky); padding-bottom: 1px; }
.ci-ribbon a:hover { color: var(--sky-ink); }
.ci-ribbon .ci-ribbon-right { display: flex; gap: 24px; align-items: center; }

/* Cover */
.ci-cover {
  padding: 80px var(--pad-x) 64px;
  border-bottom: 1px solid var(--rule);
  position: relative;
  overflow: hidden;
}
.ci-cover-meta {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 32px;
  padding: 16px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 56px;
}
.ci-cover-meta b {
  display: block; margin-top: 4px;
  color: var(--ink); font-family: var(--font-text);
  font-size: 13px; letter-spacing: 0; text-transform: none;
}
.ci-issue {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-mute); margin-bottom: 32px;
}
.ci-issue span { display: flex; align-items: center; gap: 10px; }
.ci-issue span::before {
  content: ""; width: 8px; height: 8px; background: var(--ember);
  border-radius: 50%;
}
.ci-issue span:last-child::before { background: var(--sky); }

.ci-title {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 0.88;
  font-size: clamp(56px, 11vw, 180px);
  margin: 0 0 24px;
  max-width: 14ch;
}
.ci-title em {
  font-family: var(--font-serif); font-style: italic; font-weight: 400;
  color: var(--ink-soft);
  letter-spacing: -0.02em;
  background-image: linear-gradient(to top, var(--sky) 0, var(--sky) 3px, transparent 3px);
  background-repeat: no-repeat;
  background-size: 100% 100%;
  padding-bottom: 4px;
}
.ci-subtitle {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(22px, 2.4vw, 34px);
  line-height: 1.25;
  color: var(--ink-soft);
  margin: 0 0 56px;
  max-width: 46ch;
}

.ci-cover-owl {
  position: absolute;
  right: calc(-1 * var(--pad-x));
  bottom: 40px;
  width: clamp(260px, 30vw, 420px);
  opacity: 0.1;
  pointer-events: none; user-select: none;
}
@media (max-width: 900px) {
  .ci-cover-meta { grid-template-columns: 1fr 1fr; }
  .ci-cover-owl { opacity: 0.06; }
}

/* TOC */
.ci-toc {
  padding: 56px var(--pad-x);
  border-bottom: 1px solid var(--rule);
  background: var(--bg-alt);
}
.ci-toc-grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  max-width: var(--container); margin: 0 auto;
}
.ci-toc h3 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0;
  font-weight: 500;
}
.ci-toc ol {
  list-style: none; padding: 0; margin: 0;
  counter-reset: toc;
  columns: 2; column-gap: 48px;
}
.ci-toc li {
  counter-increment: toc;
  padding: 14px 0;
  border-bottom: 1px dashed var(--rule);
  display: grid; grid-template-columns: 40px 1fr auto; gap: 16px;
  font-size: 15px;
  break-inside: avoid;
}
.ci-toc li::before {
  content: counter(toc, decimal-leading-zero);
  font-family: var(--font-mono); font-size: 11px;
  color: var(--ember-ink); letter-spacing: 0.08em;
  padding-top: 2px;
}
.ci-toc li a { display: block; transition: color .18s ease; }
.ci-toc li a:hover { color: var(--sky-ink); }
.ci-toc li .pg {
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-mute);
  letter-spacing: 0.06em;
}
@media (max-width: 900px) {
  .ci-toc-grid { grid-template-columns: 1fr; gap: 24px; }
  .ci-toc ol { columns: 1; }
}

/* Editor's note */
.ci-note {
  padding: 120px var(--pad-x);
  border-bottom: 1px solid var(--rule);
}
.ci-note-inner {
  max-width: var(--container); margin: 0 auto;
  display: grid; grid-template-columns: 240px 1fr; gap: 64px;
  align-items: start;
}
.ci-note-head {
  position: sticky; top: 80px;
}
.ci-note-head .eyebrow {
  padding-left: 0;
}
.ci-note-head .eyebrow::before { display: none; }
.ci-note-head h3 {
  font-family: var(--font-display); font-weight: 500;
  letter-spacing: -0.02em; font-size: 22px; line-height: 1.1;
  margin: 16px 0 20px;
}
.ci-note-sig {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  display: flex; align-items: center; gap: 12px;
}
.ci-note-sig img {
  width: 48px; height: 48px; border-radius: 50%;
  object-fit: cover; object-position: center top;
}
.ci-note-sig b { display: block; font-size: 14px; font-weight: 500; }
.ci-note-sig span {
  font-family: var(--font-mono); font-size: 10.5px; color: var(--ink-mute);
  letter-spacing: 0.1em; text-transform: uppercase;
}

.ci-note-body {
  font-family: var(--font-serif);
  font-style: normal;
  font-size: 22px;
  line-height: 1.5;
  color: var(--ink);
  max-width: 60ch;
}
.ci-note-body p { margin: 0 0 24px; }
.ci-note-body p:first-child::first-letter {
  font-family: var(--font-display); font-weight: 500;
  float: left;
  font-size: 96px; line-height: 0.85;
  margin: 10px 12px 0 0;
  color: var(--accent);
}
.ci-note-body em {
  font-style: italic;
  background-image: linear-gradient(to top, var(--sky-soft) 0, var(--sky-soft) 6px, transparent 6px);
  background-repeat: no-repeat;
  background-size: 100% 100%;
}
@media (max-width: 900px) {
  .ci-note-inner { grid-template-columns: 1fr; gap: 32px; }
  .ci-note-head { position: static; }
  .ci-note-body { font-size: 18px; }
}

/* Section — numbered chapter */
.ci-section {
  padding: 120px var(--pad-x);
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.ci-section-inner { max-width: var(--container); margin: 0 auto; }
.ci-chapter-mark {
  display: flex; justify-content: space-between; align-items: baseline;
  padding-bottom: 24px; border-bottom: 1px solid var(--rule);
  margin-bottom: 56px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-mute);
}
.ci-chapter-mark b {
  font-family: var(--font-display); font-weight: 500;
  font-size: 48px; letter-spacing: -0.04em;
  color: var(--ink);
}
.ci-chapter-mark .ci-chap-label { color: var(--ember-ink); }
.ci-chapter-mark .ci-chap-read {
  display: flex; gap: 16px; align-items: center;
}

.ci-hd {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1;
  font-size: clamp(44px, 6.5vw, 96px);
  margin: 0 0 40px;
  max-width: 18ch;
}
.ci-hd em {
  font-family: var(--font-serif); font-style: italic; font-weight: 400;
  color: var(--ink-soft);
  background-image: linear-gradient(to top, var(--sky) 0, var(--sky) 3px, transparent 3px);
  background-repeat: no-repeat;
  background-size: 100% 100%;
  padding-bottom: 3px;
}

.ci-lede {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.4;
  color: var(--ink-soft);
  max-width: 50ch;
  margin: 0 0 56px;
  padding-left: 18px;
  border-left: 2px solid var(--ember);
}

.ci-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
  max-width: 1100px;
}
.ci-cols p { margin: 0 0 20px; }
.ci-cols strong { color: var(--ink); font-weight: 500; }
@media (max-width: 900px) {
  .ci-cols { grid-template-columns: 1fr; gap: 0; }
}

/* Callout / stat card */
.ci-callout {
  margin: 56px 0;
  padding: 32px 40px;
  background: var(--bg-alt);
  border-top: 2px solid var(--sky);
  border-bottom: 2px solid var(--ember);
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
}
.ci-callout-big {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(56px, 8vw, 120px);
  letter-spacing: -0.04em;
  line-height: 0.9;
  color: var(--ink);
}
.ci-callout-big em {
  font-family: var(--font-serif); font-style: italic; font-weight: 400;
  color: var(--accent);
}
.ci-callout p {
  font-size: 15.5px; line-height: 1.55; color: var(--ink-soft);
  margin: 0 0 12px;
}
.ci-callout .ci-callout-label {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ember-ink); margin-bottom: 16px;
}
@media (max-width: 900px) {
  .ci-callout { grid-template-columns: 1fr; padding: 24px; gap: 20px; }
}

/* Figure */
.ci-fig {
  margin: 56px 0;
  padding: 32px;
  border: 1px solid var(--rule);
  background: var(--paper);
}
.ci-fig-head {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-mute);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--rule-soft);
  margin-bottom: 24px;
}
.ci-fig-title {
  font-family: var(--font-display); font-weight: 500;
  font-size: 22px; letter-spacing: -0.015em;
  margin: 0 0 24px;
  max-width: 44ch;
}
.ci-fig-cap {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--rule-soft);
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.08em; color: var(--ink-mute);
  text-transform: uppercase;
}

/* Phased timeline (figure type) */
.ci-phases {
  display: grid;
  grid-template-columns: 1fr 2.5fr;
  border: 1px solid var(--rule-soft);
}
.ci-phase {
  padding: 28px 28px 32px;
  border-right: 1px solid var(--rule-soft);
  background: var(--bg);
}
.ci-phase:last-child { border-right: 0; }
.ci-phase-label {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ember-ink); margin-bottom: 10px;
}
.ci-phase-title {
  font-family: var(--font-display); font-weight: 500;
  letter-spacing: -0.015em; font-size: 22px; line-height: 1.1;
  margin: 0 0 16px; max-width: 24ch;
}
.ci-phase-dur {
  font-family: var(--font-mono); font-size: 11.5px;
  color: var(--ink-mute); padding: 4px 8px;
  border: 1px solid var(--rule);
  display: inline-block; margin-bottom: 16px;
  letter-spacing: 0.06em;
}
.ci-phase p { margin: 0 0 12px; font-size: 14.5px; color: var(--ink-soft); line-height: 1.55; }

.ci-phase-split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
}
.ci-opt {
  padding: 20px; border-right: 1px solid var(--rule-soft);
}
.ci-opt:last-child { border-right: 0; }
.ci-opt-tag {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.12em; color: var(--sky-ink);
  text-transform: uppercase; margin-bottom: 8px;
}
.ci-opt-name { font-family: var(--font-display); font-weight: 500; font-size: 18px; letter-spacing: -0.01em; margin: 0 0 12px; }
.ci-opt-desc { font-size: 13.5px; color: var(--ink-soft); line-height: 1.5; margin: 0 0 14px; }
.ci-opt ul { list-style: none; padding: 0; margin: 0; }
.ci-opt li {
  padding: 8px 0; border-top: 1px solid var(--rule-soft);
  font-size: 12.5px; color: var(--ink-soft);
  display: grid; grid-template-columns: 16px 1fr; gap: 8px;
}
.ci-opt li::before {
  content: "›"; font-family: var(--font-mono); color: var(--accent);
}
@media (max-width: 900px) {
  .ci-phases { grid-template-columns: 1fr; }
  .ci-phase { border-right: 0; border-bottom: 1px solid var(--rule-soft); }
  .ci-phase:last-child { border-bottom: 0; }
  .ci-phase-split { grid-template-columns: 1fr; }
  .ci-opt { border-right: 0; border-bottom: 1px solid var(--rule-soft); }
  .ci-opt:last-child { border-bottom: 0; }
}

/* Economics mixture figure */
.ci-econ {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--rule-soft);
}
.ci-econ-card {
  padding: 28px;
  border-right: 1px solid var(--rule-soft);
  background: var(--bg);
}
.ci-econ-card:last-child { border-right: 0; }
.ci-econ-k {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-mute); margin-bottom: 10px;
  display: flex; justify-content: space-between; align-items: center;
}
.ci-econ-k .ci-econ-pill {
  font-family: var(--font-mono); font-size: 10px;
  padding: 3px 8px;
  letter-spacing: 0.08em;
  border-radius: 999px;
  background: var(--sky-soft); color: var(--sky-ink);
}
.ci-econ-card:nth-child(2) .ci-econ-pill { background: color-mix(in oklab, var(--ember) 22%, transparent); color: var(--ember-ink); }
.ci-econ-card:nth-child(3) .ci-econ-pill { background: color-mix(in oklab, var(--accent) 22%, transparent); color: var(--accent-ink); }

.ci-econ-title {
  font-family: var(--font-display); font-weight: 500;
  font-size: 22px; letter-spacing: -0.015em;
  margin: 0 0 14px; max-width: 20ch;
}
.ci-econ-desc {
  font-size: 13.5px; color: var(--ink-soft); line-height: 1.55; margin: 0 0 16px;
}
.ci-econ-ratio {
  margin-top: 20px; padding-top: 16px;
  border-top: 1px solid var(--rule-soft);
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.1em; color: var(--ink-mute);
  text-transform: uppercase;
}
.ci-econ-bar {
  height: 8px; margin-top: 6px;
  display: flex;
  border: 1px solid var(--rule);
}
.ci-econ-bar span {
  display: block; height: 100%;
}
@media (max-width: 900px) {
  .ci-econ { grid-template-columns: 1fr; }
  .ci-econ-card { border-right: 0; border-bottom: 1px solid var(--rule-soft); }
  .ci-econ-card:last-child { border-bottom: 0; }
}

/* Pull quote (within chapter) */
.ci-pull {
  margin: 80px 0;
  padding: 40px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.ci-pull q {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(28px, 4vw, 52px);
  line-height: 1.15;
  letter-spacing: -0.015em;
  quotes: "“" "”";
  display: block;
  max-width: 24ch;
}
.ci-pull q::before { color: var(--accent); }
.ci-pull q::after { color: var(--accent); }
.ci-pull-cite {
  margin-top: 24px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-mute);
}

/* Signals list */
.ci-signals { list-style: none; padding: 0; margin: 0; }
.ci-signals li {
  padding: 32px 0;
  border-bottom: 1px solid var(--rule);
  display: grid; grid-template-columns: 80px 1fr 280px; gap: 40px;
  align-items: start;
}
.ci-signals li:last-child { border-bottom: 0; }
.ci-signals .ci-sig-num {
  font-family: var(--font-display); font-weight: 500;
  font-size: 56px; letter-spacing: -0.04em; line-height: 0.9;
  color: var(--ink);
}
.ci-signals .ci-sig-num em {
  font-family: var(--font-serif); font-style: italic; font-weight: 400;
  color: var(--ember-ink); font-size: 0.5em;
}
.ci-signals h4 {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(22px, 2.4vw, 30px);
  letter-spacing: -0.02em; line-height: 1.1;
  margin: 0 0 12px; max-width: 20ch;
}
.ci-signals p {
  font-size: 15px; color: var(--ink-soft); line-height: 1.55; margin: 0;
  max-width: 52ch;
}
.ci-signals .ci-sig-mark {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--sky-ink);
  padding: 12px 0 0; border-top: 1px solid var(--sky);
}
@media (max-width: 900px) {
  .ci-signals li { grid-template-columns: 1fr; gap: 12px; }
  .ci-signals .ci-sig-mark { border-top: 0; padding: 8px 0 0; }
}

/* Methodology + authors mini-block */
.ci-method {
  padding: 80px var(--pad-x);
  background: var(--bg-alt);
  border-bottom: 1px solid var(--rule);
}
.ci-method-inner {
  max-width: var(--container); margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px;
}
.ci-method h3 {
  font-family: var(--font-display); font-weight: 500;
  letter-spacing: -0.02em; font-size: 28px;
  margin: 0 0 16px;
}
.ci-method p {
  font-size: 14.5px; color: var(--ink-soft); line-height: 1.6; margin: 0 0 14px;
}
.ci-authors {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px;
}
.ci-author {
  display: grid; grid-template-columns: 56px 1fr; gap: 14px; align-items: center;
  padding: 12px 0;
  border-top: 1px solid var(--rule);
}
.ci-author img {
  width: 56px; height: 56px; border-radius: 50%; object-fit: cover; object-position: center top;
}
.ci-author b { font-size: 14px; font-weight: 500; display: block; }
.ci-author span { font-family: var(--font-mono); font-size: 10.5px; color: var(--ink-mute); letter-spacing: 0.08em; text-transform: uppercase; }
@media (max-width: 900px) {
  .ci-method-inner { grid-template-columns: 1fr; gap: 32px; }
  .ci-authors { grid-template-columns: 1fr; }
}

/* Back cover / CTA */
.ci-back {
  padding: 120px var(--pad-x);
  background: var(--ink);
  color: var(--bg);
  position: relative;
  overflow: hidden;
}
.ci-back-inner { max-width: var(--container); margin: 0 auto; }
.ci-back h2 {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(48px, 7vw, 96px);
  letter-spacing: -0.04em; line-height: 0.95;
  margin: 24px 0 40px;
  max-width: 16ch;
}
.ci-back h2 em {
  font-family: var(--font-serif); font-style: italic; font-weight: 400;
  color: var(--accent);
  background-image: linear-gradient(to top, var(--ember) 0, var(--ember) 4px, transparent 4px);
  background-repeat: no-repeat;
  background-size: 100% 100%;
  padding-bottom: 4px;
}
.ci-back .eyebrow { color: color-mix(in oklab, var(--bg) 60%, transparent); }
.ci-back .eyebrow::before { background: var(--sky); }

.ci-back-actions {
  display: flex; gap: 12px; padding-top: 40px;
  border-top: 1px solid color-mix(in oklab, var(--bg) 20%, transparent);
  flex-wrap: wrap;
}
.ci-back .btn { border-color: var(--bg); color: var(--bg); }
.ci-back .btn:hover { background: var(--bg); color: var(--ink); }
.ci-back .btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.ci-back .btn-primary:hover { background: var(--bg); color: var(--ink); border-color: var(--bg); }

.ci-back-owl {
  position: absolute; right: -4%; top: 50%;
  transform: translateY(-50%);
  width: clamp(280px, 34vw, 520px);
  opacity: 0.14;
  pointer-events: none;
}

/* Footer */
.ci-foot {
  padding: 32px var(--pad-x);
  display: flex; justify-content: space-between;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-mute);
  border-top: 1px solid var(--rule);
}
.ci-foot a:hover { color: var(--sky-ink); }
@media (max-width: 700px) {
  .ci-foot { flex-direction: column; gap: 8px; }
}