/* ============================================
   S02_STRUCTURE.CSS
   Section 02: Structure
   ============================================ */

/* --------------------------------------------
   1. Section Base
   -------------------------------------------- */
.structure {
  position: relative;
  overflow: hidden;
}

/* --------------------------------------------
   2. Header
   -------------------------------------------- */
.structure__header {
  max-width: 720px;
  margin-bottom: var(--space-16);
}

.structure__heading {
  font-size: clamp(1.5rem, 2.8vw, 2.25rem);
}

.structure__heading-em {
  font-style: normal;
  color: var(--color-primary);
}

/* --------------------------------------------
   3. Compare Block
   -------------------------------------------- */
.structure__compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-6);
  align-items: center;
  margin-bottom: var(--space-20);
}

.structure__compare-card {
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  border: 2px solid transparent;
  transition: transform var(--transition-base);
}

.structure__compare-card:hover {
  transform: translateY(-4px);
}

.structure__compare-card--bad {
  background: #fff8f8;
  border-color: #ffd0d0;
}

.structure__compare-card--good {
  background: var(--color-primary-pale);
  border-color: rgba(45, 90, 64, 0.3);
}

.structure__compare-label {
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.structure__compare-card--bad .structure__compare-label {
  color: #cc4444;
}

.structure__compare-card--good .structure__compare-label {
  color: var(--color-primary);
}

.structure__compare-scene {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.structure__compare-line {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.structure__compare-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: 700;
  flex-shrink: 0;
}

.structure__compare-icon--q {
  background: #ffd0d0;
  color: #cc4444;
}

.structure__compare-icon--neutral {
  background: var(--color-bg-light);
  color: var(--color-text-muted);
}

.structure__compare-icon--check {
  background: rgba(45, 90, 64, 0.15);
  color: var(--color-primary);
}

.structure__compare-icon--good {
  background: rgba(200, 146, 42, 0.15);
  color: var(--color-accent);
}

.structure__compare-arrow {
  text-align: center;
  color: var(--color-border);
  font-size: var(--text-lg);
  line-height: 1;
}

.structure__compare-result {
  margin-top: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 700;
  text-align: center;
}

.structure__compare-result--bad {
  background: #ffd0d0;
  color: #cc4444;
}

.structure__compare-result--good {
  background: rgba(45, 90, 64, 0.15);
  color: var(--color-primary);
}

.structure__compare-vs {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text-muted);
  text-align: center;
}

/* --------------------------------------------
   4. Logic Items
   -------------------------------------------- */
.structure__logic {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
  margin-bottom: var(--space-16);
  max-width: 800px;
  margin-inline: auto;
  margin-bottom: var(--space-16);
}

.structure__logic-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-8);
  align-items: flex-start;
}

.structure__logic-num {
  font-family: var(--font-serif);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-primary-pale);
  line-height: 1;
  min-width: 60px;
  letter-spacing: -0.02em;
}

.structure__logic-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  line-height: var(--leading-tight);
}

.structure__logic-text {
  font-size: var(--text-base);
  line-height: var(--leading-loose);
  color: var(--color-text-secondary);
}

/* --------------------------------------------
   5. Bridge
   -------------------------------------------- */
.structure__bridge {
  text-align: center;
  padding: var(--space-16) var(--space-8);
  background: var(--color-bg-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
}

.structure__bridge-text {
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
}

.structure__bridge-text strong {
  color: var(--color-primary);
}

/* --------------------------------------------
   6. Responsive
   -------------------------------------------- */
@media (max-width: 767px) {
  .structure__compare {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .structure__compare-vs {
    text-align: center;
  }

  .structure__logic-item {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .structure__logic-num {
    font-size: var(--text-2xl);
  }
}