/* ============================================
   Commercial Architects — insights.css
   Supplementary styles for the Insights / article bank.
   Relies on styles.css for tokens, fonts, .eyebrow, .btn, .nav, .footer.
   All bank-specific classes are namespaced with ib-.
   ============================================ */

:root { --ib-measure: 680px; }

/* Gold eyebrow accent (brand colour) — extends styles.css .eyebrow */
.eyebrow--gold { color: var(--gold); }

/* ---------- Lede ---------- */
.ib-lede {
  padding-top: clamp(56px, 9vw, 120px);
  padding-bottom: clamp(40px, 6vw, 72px);
  border-bottom: 1px solid var(--paper-line);
}
.ib-lede .eyebrow { margin-bottom: 26px; display: inline-block; }
.ib-lede__title {
  font-size: clamp(40px, 7vw, 84px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin: 0 0 26px;
  max-width: 16ch;
}
.ib-lede__desc {
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.5;
  color: var(--foundation);
  opacity: 0.78;
  max-width: 56ch;
  margin: 0;
}

/* ---------- Grid ---------- */
.ib-grid-section { padding: clamp(48px, 7vw, 88px) 0 var(--section); }
.ib-grid-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.ib-grid-head h2 {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--warm-gray);
  margin: 0;
}

.ib-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--paper-line);
  border: 1px solid var(--paper-line);
}
.ib-card {
  background: var(--paper);
  padding: clamp(28px, 3vw, 40px);
  display: flex;
  flex-direction: column;
  min-height: 320px;
  transition: background 0.25s var(--ease-out);
  text-decoration: none;
  color: var(--foundation);
}
.ib-card:hover { background: var(--paper-warm); }
.ib-card .eyebrow { margin-bottom: 22px; display: inline-flex; gap: 0.6em; align-items: center; }
.ib-card__num { color: var(--warm-gray); opacity: 0.65; }
.ib-card__title {
  font-size: clamp(21px, 2.2vw, 27px);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
}
.ib-card__dek {
  font-size: 15.5px;
  line-height: 1.55;
  color: var(--foundation);
  opacity: 0.72;
  margin: 0 0 auto;
}
.ib-card__meta {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 28px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--warm-gray);
}
.ib-card__meta .ib-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--warm-gray); opacity: 0.6; }
.ib-card__arrow {
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--green);
  letter-spacing: 0.03em;
}

.ib-card--feature {
  grid-column: 1 / -1;
  min-height: auto;
  background: var(--foundation);
  color: var(--paper);
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: clamp(28px, 4vw, 64px);
  align-items: center;
  padding: clamp(36px, 4.5vw, 64px);
}
.ib-card--feature:hover { background: #0d0d0d; }
.ib-card--feature .ib-card__title {
  font-size: clamp(30px, 4vw, 50px);
  letter-spacing: -0.03em;
  line-height: 1.04;
}
.ib-card--feature .ib-card__dek { color: var(--foundation-text-soft); opacity: 1; font-size: 17px; }
.ib-card--feature .ib-card__meta { color: var(--foundation-text-soft); }
.ib-card--feature .ib-card__num { color: var(--foundation-text-soft); }

@media (max-width: 980px) {
  .ib-grid { grid-template-columns: repeat(2, 1fr); }
  .ib-card--feature { grid-template-columns: 1fr; gap: 20px; }
}
@media (max-width: 620px) {
  .ib-grid { grid-template-columns: 1fr; }
}

/* ============================================
   Article page
   ============================================ */
.ib-article-head {
  padding-top: clamp(96px, 11vw, 150px);
  padding-bottom: clamp(30px, 4vw, 52px);
  border-bottom: 1px solid var(--paper-line);
}
.ib-backlink {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--warm-gray);
  display: inline-block;
  margin-bottom: 34px;
  text-decoration: none;
  transition: color 0.2s var(--ease-out);
}
.ib-backlink:hover { color: var(--green); }
.ib-article-head .eyebrow { margin-bottom: 24px; display: inline-block; }
.ib-article-head__title {
  font-size: clamp(32px, 5.2vw, 60px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.032em;
  margin: 0 0 24px;
  max-width: 18ch;
}
.ib-article-head__dek {
  font-size: clamp(18px, 2.2vw, 23px);
  line-height: 1.45;
  color: var(--foundation);
  opacity: 0.82;
  max-width: 52ch;
  margin: 0 0 34px;
}
.ib-byline {
  display: flex;
  gap: 12px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--warm-gray);
  flex-wrap: wrap;
}
.ib-byline strong { color: var(--foundation); font-weight: 500; }
.ib-byline .ib-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--warm-gray); opacity: 0.6; }

/* Body */
.ib-article-body { padding: clamp(40px, 6vw, 72px) 0 var(--section); }
.ib-measure { max-width: var(--ib-measure); margin-inline: auto; }

.ib-article-body p {
  font-size: 18.5px;
  line-height: 1.68;
  color: #26261f;
  margin: 0 0 1.5em;
}
.ib-article-body h2 {
  font-size: clamp(24px, 3vw, 33px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 2.2em 0 0.7em;
}
.ib-article-body h3 {
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 1.8em 0 0.5em;
}
.ib-section-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 0.6em;
}
.ib-article-body strong { font-weight: 600; color: var(--foundation); }
.ib-article-body em { font-style: italic; }

.ib-article-body ul, .ib-article-body ol { margin: 0 0 1.5em; padding-left: 0; list-style: none; }
.ib-article-body li {
  font-size: 18px;
  line-height: 1.62;
  color: #26261f;
  padding-left: 1.6em;
  margin-bottom: 0.7em;
  position: relative;
}
.ib-article-body ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--green);
  font-family: var(--font-mono);
}
.ib-article-body ol { counter-reset: li; }
.ib-article-body ol li::before {
  counter-increment: li;
  content: counter(li, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.2em;
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 13px;
}

.ib-pullquote { margin: 2.4em 0; padding: 0; border: 0; }
.ib-pullquote p {
  font-size: clamp(23px, 3vw, 31px);
  font-weight: 500;
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--foundation);
  margin: 0;
}
.ib-pullquote::before {
  content: '//';
  display: block;
  font-family: var(--font-mono);
  color: var(--green);
  letter-spacing: 0.2em;
  margin-bottom: 0.5em;
  font-size: 15px;
}

.ib-callout {
  margin: 2.6em 0;
  background: var(--foundation);
  color: var(--paper);
  padding: clamp(28px, 3.5vw, 44px);
  border-radius: 3px;
}
.ib-callout .eyebrow { color: var(--gold); display: inline-block; margin-bottom: 16px; }
.ib-callout p { color: var(--foundation-text-soft); font-size: 17px; margin: 0; line-height: 1.6; }
.ib-callout p strong { color: var(--paper); }

.ib-endmark {
  font-family: var(--font-mono);
  color: var(--green);
  letter-spacing: 0.3em;
  margin: 2.4em 0 0;
  font-size: 14px;
}

.ib-article-cta {
  margin-top: clamp(48px, 6vw, 80px);
  padding-top: clamp(40px, 5vw, 56px);
  border-top: 1px solid var(--paper-line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.ib-article-cta__text { max-width: 40ch; }
.ib-article-cta__text .eyebrow { color: var(--green); display: inline-block; margin-bottom: 12px; }
.ib-article-cta__text p { font-size: clamp(20px, 2.4vw, 26px); font-weight: 500; letter-spacing: -0.02em; line-height: 1.2; margin: 0; }

/* Related */
.ib-related { border-top: 1px solid var(--paper-line); padding: clamp(40px, 5vw, 64px) 0; }
.ib-related h2 {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--warm-gray);
  margin: 0 0 30px;
}
.ib-related__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--paper-line); border: 1px solid var(--paper-line); }
.ib-related__grid .ib-card { min-height: 220px; }
@media (max-width: 620px) { .ib-related__grid { grid-template-columns: 1fr; } }