/* Phase 2 category architecture layer.
   Small additive helpers for the existing Vessel Core premium design system. */

.phase2-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
  gap: var(--space-10);
  align-items: start;
}

.phase2-lead {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.75;
}

.phase2-panel,
.rfq-info-card,
.faq-item {
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

.phase2-panel {
  padding: var(--space-6);
}

.phase2-panel h3,
.rfq-info-card h3,
.faq-item h3 {
  font-family: var(--font-display);
  margin: 0 0 var(--space-4);
}

.phase2-panel ul,
.phase2-checklist {
  list-style: none;
  padding: 0;
  margin: 0;
}

.phase2-panel li,
.phase2-checklist li {
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text-muted);
}

.phase2-panel li:last-child,
.phase2-checklist li:last-child {
  border-bottom: 0;
}

.category-link-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--color-border);
  background: var(--color-border);
}

.category-link-card {
  min-height: 170px;
  padding: var(--space-6);
  background: var(--color-bg);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.category-link-card:hover,
.category-link-card:focus-visible {
  background: var(--color-accent);
  color: var(--color-bg);
  transform: translateY(-2px);
  outline: none;
}

.category-link-card span {
  color: var(--color-text-light);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .12em;
}

.category-link-card h3 {
  margin: auto 0 var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

.category-link-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.65;
}

.category-link-card:hover p,
.category-link-card:focus-visible p {
  color: var(--color-text-inverse);
}

.rfq-info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5);
}

.rfq-info-card {
  padding: var(--space-6);
}

.rfq-info-card p,
.faq-item p,
.category-note {
  color: var(--color-text-muted);
}

.faq-list {
  display: grid;
  gap: var(--space-4);
}

.faq-item {
  padding: var(--space-6);
}

@media (max-width: 1100px) {
  .category-link-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 780px) {
  .phase2-intro-grid,
  .rfq-info-grid,
  .category-link-grid {
    grid-template-columns: 1fr;
  }
}