/* PORTFOLIO PAGE */

.filter-bar {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.filter-btn {
  padding: 0.5em 1.1em;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-border);
  color: var(--color-text-muted);
  background: var(--color-surface-2);
  transition: all var(--duration-fast) var(--ease-out);
}
.filter-btn:hover, .filter-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.portfolio-case {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--duration-base) var(--ease-out);
}
.portfolio-case:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.portfolio-case--featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
}

.portfolio-case-img {
  overflow: hidden;
  position: relative;
}
.portfolio-case-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 280px;
  transition: transform 0.6s var(--ease-out);
}
.portfolio-case:hover .portfolio-case-img img { transform: scale(1.04); }
.portfolio-case-img--sm img { min-height: 200px; }

.portfolio-case-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}
.portfolio-case--featured .portfolio-case-body {
  padding: var(--space-8) var(--space-8);
  justify-content: center;
}

.portfolio-case-header {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.portfolio-case h3 {
  font-size: var(--text-xl);
  color: var(--color-text);
  line-height: 1.2;
}

.case-tagline {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  font-style: italic;
}

.case-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--color-surface-offset);
  border-radius: var(--radius-md);
  margin-block: var(--space-2);
}
.case-metric { text-align: center; }
.case-metric-num {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-1);
}
.case-metric-label { font-size: var(--text-xs); color: var(--color-text-muted); }

.case-excerpt {
  font-size: var(--text-sm);
  line-height: 1.7;
  flex: 1;
}

.case-services-used {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: var(--space-3);
}

/* transitions for filter */
.portfolio-item {
  transition: opacity 0.3s, transform 0.3s;
}

@media (max-width: 1024px) {
  .portfolio-case--featured {
    grid-column: 1;
    grid-template-columns: 1fr;
  }
  .portfolio-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .portfolio-grid { grid-template-columns: 1fr; }
}