/* Portfolio Section - Card Grid with Category Filters */

.portfolio-section {
  padding: 60px 20px 60px 20px;
  position: relative;
  z-index: 5;
  border-top: 1px solid var(--border-subtle);
}

.portfolio-title {
  max-width: 900px;
  margin: 0 auto 16px auto;
  font-size: 18px;
  font-weight: 600;
  color: var(--accent-primary);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.portfolio-title::before {
  content: "$ ";
  color: var(--accent-primary);
  opacity: 0.7;
}

/* Category filter tabs */
.portfolio-filters {
  max-width: 900px;
  margin: 0 auto 20px auto;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.portfolio-filter {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border-default);
  padding: 4px 12px;
  cursor: pointer;
  transition: all 0.1s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.portfolio-filter:hover {
  color: var(--accent-primary);
  border-color: var(--accent-border);
}

.portfolio-filter--active {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  background: var(--accent-muted);
}

/* Card grid */
.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  max-width: 900px;
  margin: 0 auto;
  container-type: inline-size;
}

.portfolio-card {
  background: transparent;
  border: 1px solid var(--border-subtle);
  padding: 16px;
  cursor: pointer;
  transition: all 0.1s ease;
}

.portfolio-card:hover {
  border-color: var(--accent-border);
  background: rgba(255, 255, 255, 0.02);
}

.portfolio-card__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-primary);
  margin: 0 0 6px 0;
  font-family: var(--font-mono);
}

.portfolio-card__description {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0 0 10px 0;
  line-height: 1.5;
  font-family: var(--font-mono);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.portfolio-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.portfolio-card__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  border: 1px solid var(--border-subtle);
  padding: 2px 7px;
}

@media (max-width: 768px) {
  .portfolio-section { padding: 0 15px 40px 15px; }
  .portfolio-grid { grid-template-columns: 1fr; gap: 8px; }
  .portfolio-card { padding: 12px; }
}

@media (max-width: 480px) {
  .portfolio-title { font-size: 14px; }
  .portfolio-filter { font-size: 11px; padding: 3px 8px; }
  .portfolio-card__title { font-size: 13px; }
  .portfolio-card__description { font-size: 11px; }
}