:root {
  --rf-ink: #1e2a3a;
  --rf-copy: #344352;
  --rf-muted: #5d6977;
  --rf-orange: #d94712;
  --rf-orange-bright: #f26522;
  --rf-paper: #f4efe7;
  --rf-surface: #fffdf9;
  --rf-line: #d9d1c5;
  --rf-dark: #182433;
}

.rf-article-page {
  margin: 0;
  background: var(--rf-paper);
  color: var(--rf-copy);
  font-family: "Source Sans 3", Arial, sans-serif;
}

.rf-article-hero {
  border-bottom: 1px solid var(--rf-line);
  background:
    radial-gradient(circle at 78% 100%, rgba(242, 101, 34, 0.16), transparent 38%),
    linear-gradient(180deg, #fff, #eee7dc);
}

.rf-article-hero__inner,
.rf-article-layout,
.rf-article-related,
.rf-article-cta__inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.rf-article-hero__inner {
  padding: clamp(42px, 7vw, 88px) 0 clamp(48px, 7vw, 92px);
}

.rf-article-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 32px;
  color: var(--rf-muted);
  font-size: 14px;
}

.rf-article-breadcrumbs a {
  color: var(--rf-copy);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.rf-article-kicker {
  margin-bottom: 18px;
  color: var(--rf-orange);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.rf-article-hero h1 {
  max-width: 900px;
  margin: 0;
  color: var(--rf-ink);
  font-size: clamp(40px, 6.3vw, 76px);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 0.98;
  text-wrap: balance;
}

.rf-article-deck {
  max-width: 760px;
  margin: 28px 0 0;
  color: #344353;
  font-size: clamp(19px, 2.4vw, 25px);
  line-height: 1.5;
}

.rf-article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  margin-top: 32px;
  color: var(--rf-muted);
  font-size: 14px;
}

.rf-article-meta strong { color: var(--rf-ink); }

.rf-article-layout {
  display: grid;
  grid-template-columns: minmax(0, 790px) minmax(220px, 1fr);
  gap: clamp(44px, 7vw, 88px);
  align-items: start;
  padding: clamp(52px, 7vw, 88px) 0;
}

.rf-article-copy {
  min-width: 0;
  font-size: clamp(17px, 1.8vw, 19px);
  line-height: 1.78;
}

.rf-article-copy > p:first-child {
  color: var(--rf-ink);
  font-size: clamp(20px, 2.3vw, 24px);
  line-height: 1.6;
}

.rf-article-copy h2 {
  margin: 58px 0 18px;
  color: var(--rf-ink);
  font-size: clamp(29px, 4vw, 43px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.08;
  text-wrap: balance;
}

.rf-article-copy h3 {
  margin: 34px 0 12px;
  color: var(--rf-ink);
  font-size: clamp(21px, 2.7vw, 28px);
  line-height: 1.2;
}

.rf-article-copy p { margin: 0 0 22px; }

.rf-article-copy a {
  color: #a83309;
  font-weight: 650;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.rf-article-copy ul,
.rf-article-copy ol {
  margin: 18px 0 28px;
  padding-left: 1.3em;
}

.rf-article-copy li { margin: 0 0 12px; padding-left: 4px; }
.rf-article-copy li::marker { color: var(--rf-orange); font-weight: 800; }

.rf-article-callout,
.rf-article-proof,
.rf-article-checklist {
  margin: 34px 0;
  border: 1px solid var(--rf-line);
  border-radius: 16px;
  background: var(--rf-surface);
  padding: clamp(24px, 4vw, 34px);
}

.rf-article-callout { border-left: 4px solid var(--rf-orange); }
.rf-article-callout p:last-child,
.rf-article-proof p:last-child,
.rf-article-checklist p:last-child { margin-bottom: 0; }

.rf-article-label {
  display: block;
  margin-bottom: 10px;
  color: var(--rf-orange);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.rf-article-proof {
  background: var(--rf-dark);
  color: #e9edf1;
}

.rf-article-proof strong,
.rf-article-proof h3 { color: #fff; }
.rf-article-proof .rf-article-label { color: #ff9d72; }

.rf-article-table-wrap {
  margin: 30px 0 38px;
  overflow-x: auto;
  border: 1px solid var(--rf-line);
  border-radius: 14px;
  background: var(--rf-surface);
}

.rf-article-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 16px;
  line-height: 1.5;
}

.rf-article-table th,
.rf-article-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--rf-line);
  text-align: left;
  vertical-align: top;
}

.rf-article-table th {
  background: #ebe4d9;
  color: var(--rf-ink);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.rf-article-table tr:last-child td { border-bottom: 0; }

.rf-article-aside {
  position: sticky;
  top: 24px;
  border-top: 3px solid var(--rf-orange);
  background: #ebe5dc;
  padding: 24px;
}

.rf-article-aside h2 {
  margin: 0 0 12px;
  color: var(--rf-ink);
  font-size: 22px;
  line-height: 1.15;
}

.rf-article-aside p {
  margin: 0 0 18px;
  color: #465565;
  font-size: 15px;
  line-height: 1.6;
}

.rf-article-aside a {
  display: block;
  padding: 10px 0;
  border-top: 1px solid #d1c8bb;
  color: var(--rf-ink);
  font-size: 15px;
  font-weight: 650;
  text-decoration: none;
}

.rf-article-faq {
  margin-top: 58px;
  padding-top: 44px;
  border-top: 1px solid var(--rf-line);
}

.rf-article-faq details {
  border-bottom: 1px solid var(--rf-line);
  background: transparent;
}

.rf-article-faq summary {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 0;
  color: var(--rf-ink);
  cursor: pointer;
  font-size: 18px;
  font-weight: 700;
  list-style: none;
}

.rf-article-faq summary::after { content: "+"; color: var(--rf-orange); font-size: 24px; }
.rf-article-faq details[open] summary::after { content: "–"; }
.rf-article-faq details p { margin: -4px 0 22px; padding-right: 52px; }

.rf-article-related {
  padding: 0 0 clamp(60px, 8vw, 100px);
}

.rf-article-related h2 {
  margin: 0 0 24px;
  color: var(--rf-ink);
  font-size: clamp(28px, 4vw, 40px);
}

.rf-article-related__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.rf-article-related a {
  min-height: 140px;
  border: 1px solid var(--rf-line);
  border-radius: 14px;
  background: var(--rf-surface);
  padding: 24px;
  color: var(--rf-ink);
  font-size: 19px;
  font-weight: 750;
  line-height: 1.25;
  text-decoration: none;
}

.rf-article-related a span {
  display: block;
  margin-top: 12px;
  color: var(--rf-orange);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rf-article-cta {
  background: var(--rf-dark);
  color: #eef1f4;
}

.rf-article-cta__inner { padding: clamp(64px, 8vw, 104px) 0; }
.rf-article-cta h2 {
  max-width: 780px;
  margin: 0 0 18px;
  color: #fff;
  font-size: clamp(36px, 5.6vw, 64px);
  line-height: 1;
  letter-spacing: -0.04em;
}
.rf-article-cta p { max-width: 660px; margin: 0 0 28px; font-size: 19px; line-height: 1.6; }
.rf-article-cta a {
  display: inline-flex;
  align-items: center;
  min-height: 52px;
  border-radius: 9px;
  background: var(--rf-orange-bright);
  padding: 0 24px;
  color: #131b25;
  font-weight: 750;
  text-decoration: none;
}

@media (max-width: 900px) {
  .rf-article-layout { grid-template-columns: 1fr; }
  .rf-article-aside { position: static; }
  .rf-article-related__grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .rf-article-hero__inner,
  .rf-article-layout,
  .rf-article-related,
  .rf-article-cta__inner { width: min(100% - 30px, 1180px); }
  .rf-article-hero h1 { font-size: clamp(38px, 12.5vw, 58px); }
  .rf-article-layout { padding-top: 44px; }
  .rf-article-copy { font-size: 17px; line-height: 1.72; }
  .rf-article-copy h2 { margin-top: 48px; }
  .rf-article-faq details p { padding-right: 0; }
}