/* =====================
   SKILLS SECTION
   ===================== */
.skills-section {
  background-color: var(--surface-container-low);
  padding: var(--space-3xl) var(--space-2xl);
}

.skills-container {
  max-width: 64rem;
  margin: 0 auto;
}

.skills-grid {
  margin-top: var(--space-2xl);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.skill-group {
  background-color: var(--surface-container-lowest);
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.skill-group-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.skill-category-icon {
  font-size: 1.375rem;
  line-height: 1;
}

.skill-group-title {
  font-size: var(--text-label);
  font-weight: var(--weight-bold);
  color: var(--on-surface);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.skill-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.skill-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
}

.skill-name {
  font-size: var(--text-sm);
  color: var(--on-surface-variant);
  font-weight: var(--weight-medium);
}

.skill-badge {
  font-size: var(--text-micro);
  font-weight: var(--weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  padding: 0.2rem var(--space-sm);
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.skill-badge--strong {
  background: var(--gradient-signature);
  color: var(--on-primary);
}

.skill-badge--working {
  background-color: var(--surface-container-high);
  color: var(--on-surface-variant);
}

.skill-badge--foundational {
  background-color: var(--surface-container-highest);
  color: var(--on-surface-variant);
}

/* =====================
   SKILLS — ENHANCED CARD HEADER + TOGGLE
   ===================== */

.skill-extra {
  margin-top: var(--space-md);
}

.skill-toggle-btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-md);
  background: none;
  border: none;
  cursor: pointer;
  font-size: var(--text-micro);
  font-weight: var(--weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--indigo-400);
  padding: 0;
  transition: var(--transition-color);
}

.skill-toggle-btn:hover {
  color: var(--primary);
}

.skill-toggle-icon {
  font-size: 1rem;
  transition: transform var(--duration-base) var(--ease);
}

.skill-toggle-btn[aria-expanded="true"] .skill-toggle-icon {
  transform: rotate(180deg);
}