:root {
  --content-paper: #f4f0e8;
  --content-white: #fffdf9;
  --content-ink: #171614;
  --content-muted: #665f57;
  --content-line: rgba(76, 65, 54, .16);
  --content-orange: #f87018;
}

body.content-page {
  background: var(--content-paper);
  color: var(--content-muted);
}

.content-header {
  position: relative;
  z-index: 2;
  border-bottom: 1px solid var(--content-line);
  background: rgba(244, 240, 232, .94);
}

.content-header .container {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.content-brand img { width: 136px; height: auto; }
.content-nav { display: flex; align-items: center; gap: 24px; }
.content-nav a {
  color: var(--content-ink);
  font-size: .9rem;
  font-weight: 650;
  text-decoration: none;
}
.content-nav .btn { color: var(--content-ink); }

.content-hero {
  padding: clamp(70px, 9vw, 122px) 0 clamp(62px, 8vw, 104px);
  background: #151617;
  color: rgba(255,255,255,.72);
}

.content-hero .container { max-width: 980px; }
.content-eyebrow {
  margin-bottom: 22px;
  color: #ff9a50;
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.content-hero h1 {
  max-width: 900px;
  color: #fff;
  font-size: clamp(3rem, 7vw, 6.4rem);
  font-weight: 650;
  letter-spacing: -.055em;
  line-height: .96;
}
.content-hero p {
  max-width: 720px;
  margin-top: 28px;
  font-size: clamp(1.05rem, 1.8vw, 1.28rem);
  line-height: 1.65;
}
.content-meta {
  margin-top: 26px;
  color: rgba(255,255,255,.48);
  font-family: var(--font-mono);
  font-size: .75rem;
}

.content-main { padding: clamp(64px, 8vw, 110px) 0; }
.content-layout {
  max-width: 1080px;
  display: grid;
  grid-template-columns: minmax(0, 720px) 250px;
  gap: 80px;
  align-items: start;
}
.content-article { min-width: 0; }
.content-article > p:first-child {
  color: var(--content-ink);
  font-size: 1.24rem;
  line-height: 1.65;
}
.content-article h2 {
  margin: 64px 0 20px;
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: -.035em;
}
.content-article h3 {
  margin: 38px 0 12px;
  font-size: 1.35rem;
}
.content-article p,
.content-article li { line-height: 1.75; }
.content-article p + p { margin-top: 20px; }
.content-article ul,
.content-article ol { margin: 20px 0 0; padding-left: 1.35rem; }
.content-article li + li { margin-top: 10px; }
.content-article a { color: #b64508; text-underline-offset: 3px; }

.article-sources {
  margin-top: 70px;
  border-top: 1px solid var(--content-line);
  padding-top: 30px;
}
.content-article .article-sources h2 {
  margin: 0;
  font-size: 1.55rem;
  letter-spacing: -.025em;
}
.article-sources ul {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  padding-left: 1.2rem;
}
.article-sources li {
  color: var(--content-muted);
  font-size: .88rem;
  line-height: 1.55;
}
.article-exercises {
  margin-top: 64px;
  border-top: 1px solid var(--content-line);
  padding-top: 30px;
}
.content-article .article-exercises h2 {
  margin: 0;
  font-size: 1.8rem;
}
.article-exercises > p {
  margin-top: 12px;
  color: var(--content-muted);
}
.article-exercise-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 24px;
  border: 1px solid var(--content-line);
  background: var(--content-line);
}
.article-exercise-links a {
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
  background: var(--content-white);
  padding: 18px;
  color: var(--content-ink);
  text-decoration: none;
}
.article-exercise-links a:hover strong { color: #b64508; }
.article-exercise-links span {
  color: var(--content-muted);
  font-size: .76rem;
  line-height: 1.45;
  text-transform: capitalize;
}

.content-aside {
  position: sticky;
  top: 28px;
  border-top: 2px solid var(--content-ink);
  padding-top: 18px;
}
.content-aside strong {
  display: block;
  color: var(--content-ink);
  font-size: .92rem;
}
.content-aside a {
  display: block;
  margin-top: 12px;
  color: var(--content-muted);
  font-size: .86rem;
  line-height: 1.45;
  text-decoration: none;
}
.content-aside a:hover { color: #b64508; }

.answer-box {
  margin: 34px 0;
  border-left: 4px solid var(--content-orange);
  background: var(--content-white);
  padding: 24px 26px;
}
.answer-box strong { color: var(--content-ink); }

.content-table-wrap { margin: 28px 0; overflow-x: auto; }
.content-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--content-white);
  font-size: .92rem;
}
.content-table th,
.content-table td {
  padding: 16px;
  border: 1px solid var(--content-line);
  text-align: left;
  vertical-align: top;
}
.content-table th { color: var(--content-ink); background: #ece6dc; }

.content-grid {
  max-width: 1080px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--content-line);
  border: 1px solid var(--content-line);
}
.guide-cluster + .guide-cluster { margin-top: 78px; }
.guide-cluster-heading {
  max-width: 760px;
  margin-bottom: 24px;
}
.guide-cluster-heading h2 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  letter-spacing: -.04em;
}
.guide-cluster-heading p {
  max-width: 650px;
  margin-top: 10px;
  line-height: 1.65;
}
.content-card {
  min-height: 280px;
  display: flex;
  flex-direction: column;
  background: var(--content-white);
  padding: 30px;
  text-decoration: none;
}
.content-card span {
  color: #b64508;
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.content-card h2,
.content-card h3 {
  margin-top: auto;
  color: var(--content-ink);
  font-size: 1.45rem;
  line-height: 1.15;
}
.content-card p { margin-top: 12px; font-size: .9rem; line-height: 1.55; }

.conversion-panel {
  margin-top: 72px;
  background: #171614;
  color: rgba(255,255,255,.7);
  padding: 38px;
}
.conversion-panel h2 { margin: 0; color: #fff; font-size: 2rem; }
.conversion-panel p { margin-top: 12px; max-width: 640px; }
.conversion-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 24px; }
.conversion-actions a:last-child {
  display: inline-flex;
  align-items: center;
  color: #fff;
  font-weight: 650;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,.45);
}

.comparison-disclosure {
  margin-top: 28px;
  color: #817a72;
  font-size: .72rem;
  line-height: 1.55;
}
.comparison-disclosure a { color: inherit; }

.exercise-figure {
  margin: 0 0 42px;
  background: #ece4d8;
  padding: 24px;
}
.exercise-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  max-height: 580px;
  object-fit: contain;
}
.fact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 30px 0;
  background: var(--content-line);
  border: 1px solid var(--content-line);
}
.fact-grid div { background: var(--content-white); padding: 20px; }
.fact-grid dt {
  color: var(--content-muted);
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.fact-grid dd { margin: 6px 0 0; color: var(--content-ink); font-weight: 650; }

.alpha-nav { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 40px; }
.alpha-nav a {
  min-width: 34px;
  border: 1px solid var(--content-line);
  background: var(--content-white);
  color: var(--content-ink);
  padding: 7px 9px;
  text-align: center;
  text-decoration: none;
}
.exercise-index-group { margin-top: 52px; }
.exercise-index-group h2 { font-size: 2.3rem; }
.exercise-index-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 26px;
  margin-top: 18px;
  padding: 0;
  list-style: none;
}
.exercise-index-list li { border-top: 1px solid var(--content-line); }
.exercise-index-list a {
  display: block;
  padding: 12px 0;
  color: var(--content-ink);
  font-size: .9rem;
  text-decoration: none;
}

.collection-index { margin-bottom: 86px; }
.all-exercises {
  border-top: 1px solid var(--content-line);
  padding-top: 72px;
}
.collection-index-grid,
.exercise-collection-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--content-line);
  background: var(--content-line);
}
.collection-index-card {
  min-height: 250px;
  display: flex;
  flex-direction: column;
  background: var(--content-white);
  padding: 26px;
  color: var(--content-ink);
  text-decoration: none;
}
.collection-index-card span,
.exercise-collection-card > span {
  color: #b64508;
  font-family: var(--font-mono);
  font-size: .66rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.collection-index-card h3 {
  margin-top: auto;
  font-size: 1.3rem;
  line-height: 1.18;
}
.collection-index-card p {
  margin-top: 10px;
  color: var(--content-muted);
  font-size: .84rem;
  line-height: 1.55;
}
.collection-answer {
  max-width: 900px;
  margin-top: 0;
}
.collection-guidance {
  max-width: 760px;
  margin-top: 64px;
}
.collection-guidance h2,
.collection-reading h2 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  letter-spacing: -.04em;
}
.collection-guidance ul {
  margin-top: 20px;
  padding-left: 1.35rem;
}
.collection-guidance li {
  line-height: 1.7;
}
.collection-guidance li + li { margin-top: 9px; }
.collection-results,
.collection-reading { margin-top: 78px; }
.exercise-collection-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.exercise-collection-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--content-white);
  padding: 14px 14px 20px;
  color: var(--content-ink);
  text-decoration: none;
}
.exercise-collection-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  margin-bottom: 18px;
  background: #ece4d8;
  object-fit: cover;
}
.exercise-collection-card h3 {
  margin-top: 8px;
  font-size: 1.05rem;
  line-height: 1.2;
}
.exercise-collection-card p {
  margin-top: 7px;
  color: var(--content-muted);
  font-size: .75rem;
}
.collection-reading {
  max-width: 900px;
}
.collection-more {
  margin-top: 24px;
  color: var(--content-muted);
  line-height: 1.7;
}
.collection-more a {
  color: #b64508;
  text-underline-offset: 3px;
}

.content-footer { border-top: 1px solid var(--content-line); padding: 38px 0; }
.content-footer .container {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  font-size: .78rem;
}
.content-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.content-footer a { color: inherit; }

@media (max-width: 820px) {
  .content-nav a:not(.btn) { display: none; }
  .content-layout { grid-template-columns: 1fr; gap: 48px; }
  .content-aside { position: static; }
  .content-grid { grid-template-columns: 1fr; }
  .collection-index-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .exercise-collection-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .content-card { min-height: 220px; }
  .exercise-index-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 520px) {
  .content-header .container { min-height: 66px; }
  .content-brand img { width: 118px; }
  .content-nav .btn { padding: 11px 15px; font-size: .82rem; }
  .content-hero h1 { font-size: 3.25rem; }
  .content-main { padding-top: 54px; }
  .fact-grid,
  .exercise-index-list,
  .article-exercise-links,
  .collection-index-grid,
  .exercise-collection-grid { grid-template-columns: 1fr; }
  .collection-index-card { min-height: 210px; }
  .conversion-panel { margin-inline: -16px; padding: 30px 22px; }
  .conversion-actions { align-items: stretch; flex-direction: column; }
  .content-footer .container { flex-direction: column; }
}