/* ==========================================================================
   LAYOUT — sidebar / content split
   ========================================================================== */

.shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}

.content {
  grid-column: 2;
  min-width: 0;
  padding: var(--space-2xl) var(--space-xl) var(--space-2xl);
  display: flex;
  justify-content: center;
}

.content__inner {
  width: 100%;
  max-width: var(--content-max);
}

.panel {
  display: none;
}
.panel.is-active {
  display: block;
  animation: rise 380ms var(--ease);
}

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.section-eyebrow {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}
.section-eyebrow .index {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--text-400);
}
.section-eyebrow h2 {
  font-size: var(--step-3);
  margin: 0;
}
.section-eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
  transform: translateY(-0.3em);
}

.section-lede {
  max-width: 60ch;
  margin-bottom: var(--space-xl);
}