/* ============================================
   Portfolio Page
   ============================================ */

/* ---- Filters ---- */
.filters {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-500);
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  transition: all 0.2s;
  cursor: pointer;
  background: none;
}
.filter-btn:hover {
  color: var(--black);
  background: var(--gray-50);
}
.filter-btn.active {
  color: var(--black);
  background: var(--white);
  border-color: var(--gray-200);
  font-weight: 600;
  box-shadow: var(--shadow-soft);
}

/* ---- Grid ---- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.portfolio-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-100);
  background: var(--white);
  transition: all 0.3s var(--ease);
}
.portfolio-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-elevated);
  transform: translateY(-4px);
}
.portfolio-card__img-wrap {
  position: relative;
  overflow: hidden;
  height: 240px;
}
.portfolio-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}
.portfolio-card:hover .portfolio-card__img {
  transform: scale(1.04);
}
.portfolio-card__body {
  padding: 24px;
}
.portfolio-card__tags {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
}
.portfolio-card__tag {
  font-size: 11px;
  font-weight: 600;
  color: var(--gray-400);
  background: var(--gray-50);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.portfolio-card__title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.portfolio-card__desc {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ---- Stats ---- */
.stats {
  background: var(--black);
  padding: 64px 0;
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat__num {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}
.stat__label {
  font-size: 13px;
  color: var(--gray-500);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .portfolio-grid { grid-template-columns: 1fr 1fr; }
  .stats__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .portfolio-grid { grid-template-columns: 1fr; }
  .portfolio-card__img-wrap { height: 200px; }
}