/* =====================
   GLOBAL
===================== */
.portfolio-page {
  background: #000;
  color: #fff;
  text-align: center;
}

/* =====================
   HERO
===================== */
.portfolio-hero {
  padding: 100px 20px;
}

.portfolio-hero h1 {
  font-size: 2.5rem;
}

.portfolio-hero p {
  color: #aaa;
  margin-top: 10px;
}

/* =====================
   FILTER
===================== */
.portfolio-filter {
  margin: 30px 0;
}

.portfolio-filter button {
  background: #111;
  border: none;
  color: #fff;
  padding: 8px 15px;
  margin: 5px;
  border-radius: 20px;
  cursor: pointer;
}

.portfolio-filter .active {
  background: var(--primary);
  color: #000;
}

/* =====================
   GRID
===================== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 40px 7%;
}

/* ITEM */
.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: 15px;
  transition: 0.3s;
}

.portfolio-item img {
  width: 100%;
  display: block;
  transition: 0.4s;
}

/* HOVER EFFECT */
.overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.7);
  opacity: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: 0.4s;
}

.portfolio-item:hover img {
  transform: scale(1.1);
}

.portfolio-item:hover .overlay {
  opacity: 1;
}

/* =====================
   CTA
===================== */
.portfolio-cta {
  padding: 100px 20px;
}

.portfolio-cta h2 {
  color: var(--primary);
}

.portfolio-cta a {
  display: inline-block;
  margin-top: 20px;
  background: var(--primary);
  color: #000;
  padding: 10px 20px;
  border-radius: 8px;
}

/* =====================
   RESPONSIVE
===================== */
@media (max-width: 768px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}