/* 
  Experience Design Portfolio 
  Strategic Logic Diagrams (Pure CSS/SVG)
*/

.diagram-container {
  width: 100%;
  background: var(--color-secondary);
  border-radius: var(--border-radius);
  padding: var(--space-xl) var(--space-md);
  margin: var(--space-lg) 0;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

/* 1. Logic Comparison (Before vs After) */
.logic-comparison {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-lg);
  align-items: center;
  width: 100%;
  max-width: 900px;
}

.logic-step {
  padding: var(--space-md);
  border-radius: var(--border-radius);
  background: white;
  border: 1px solid var(--color-border);
  position: relative;
  text-align: center;
}

.logic-step::after {
  content: '↓';
  position: absolute;
  bottom: -25px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-border);
  font-weight: 700;
}

.logic-step:last-child::after {
  display: none;
}

.logic-column {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.logic-arrow {
  font-size: 2rem;
  color: var(--color-accent);
  font-weight: 700;
}

/* 2. Routing Hierarchy (Nested Logic) */
.routing-hierarchy {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  width: 100%;
  max-width: 600px;
}

.hierarchy-item {
  padding: var(--space-sm) var(--space-md);
  background: white;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  transition: var(--transition);
}

.hierarchy-item:hover {
  transform: translateX(10px);
  border-color: var(--color-accent);
}

.level-1 { margin-left: 0; }
.level-2 { margin-left: var(--space-md); border-left-color: #93c5fd; }
.level-3 { margin-left: calc(var(--space-md) * 2); border-left-color: #bfdbfe; }

/* 3. Feedback Loop (Cyclical) */
.feedback-loop {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  position: relative;
  width: 100%;
  max-width: 800px;
}

.loop-node {
  background: white;
  padding: var(--space-md);
  border-radius: 50%;
  aspect-ratio: 1/1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  border: 2px solid var(--color-border);
  z-index: 2;
  transition: var(--transition);
}

.loop-node:hover {
  border-color: var(--color-accent);
  box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

/* 4. Modular Framework (Grid) */
.framework-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  width: 100%;
  max-width: 700px;
}

.framework-box {
  background: white;
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  text-align: center;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.framework-box.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* Enhanced Preview Cards for Homepage */
.preview-card {
  width: 100%;
  height: 100%;
  background: white;
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--space-md);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
}

.preview-badge {
  font-size: 0.625rem;
  padding: 2px 8px;
  border-radius: 99px;
  background: var(--color-accent);
  color: white;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
}

.preview-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: var(--space-xs);
}

@media (max-width: 768px) {
  .logic-comparison { grid-template-columns: 1fr; }
  .logic-arrow { transform: rotate(90deg); margin: var(--space-md) 0; }
  .feedback-loop { grid-template-columns: 1fr; }
  .loop-node { aspect-ratio: auto; border-radius: var(--border-radius); }
}