/* ══════════════════════════════════════════════
   SECTION SHELL
   ══════════════════════════════════════════════ */
.si {
  max-width: 1120px;
  margin: 0 auto;
  padding: 96px 48px;
}

.sh {
  margin-bottom: 52px;
}

.section-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(2.1rem, 3.2vw, 2.8rem);
  color: var(--text-primary);
  line-height: 1.2;
}

.section-title em     { font-style: italic; color: var(--text-secondary); }
.section-title strong { font-weight: 600; color: #fff; font-style: normal; }

.section-desc {
  margin-top: 14px;
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 500px;
  line-height: 1.75;
}



.approach {
  margin-top: 32px;
}

.ap {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 16px 0;
  border-top: 1px solid var(--border);
}

.ap-n {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-tertiary);
  min-width: 26px;
  padding-top: 2px;
}

.ap-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.ap-desc {
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.va {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-box {
  padding: 22px 20px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}

.stat-box:hover {
  border-color: var(--border-med);
}

.sb-val {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--text-primary);
  display: block;
  line-height: 1;
  margin-bottom: 7px;
}

.sb-key {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}