@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&family=Playfair+Display:wght@700&display=swap');

:root {
  --main-bg: #fcf8f3;
  --accent: #f2e4d5;
  --brown: #6a4b2c;
  --brown-light: #a88a6b;
  --font-title: 'Playfair Display', serif;
  --font-body: 'Montserrat', sans-serif;
}

.portfolio-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.2rem 1rem 2.5rem 1rem;
}
.portfolio-section h2 {
  font-family: var(--font-title);
  font-size: 2.1rem;
  color: var(--brown);
  text-align: center;
  margin-bottom: 2rem;
  letter-spacing: 0.5px;
}

.portfolio-filters {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.portfolio-filter-btn {
  background: var(--accent);
  color: var(--brown);
  border: 2px solid var(--brown-light);
  border-radius: 2em;
  padding: 0.43em 1.5em;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.18s, color 0.18s, border 0.18s;
}
.portfolio-filter-btn.active,
.portfolio-filter-btn:hover,
.portfolio-filter-btn:focus {
  background: var(--brown-light);
  color: #fff;
  border-color: var(--brown);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.3rem;
}
.portfolio-item {
  background: var(--accent);
  border-radius: 1.1rem;
  overflow: hidden;
  box-shadow: 0 2px 12px #ece4dc;
  transition: box-shadow 0.22s, transform 0.22s;
  cursor: pointer;
  aspect-ratio: 1/1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.portfolio-item:hover,
.portfolio-item:focus {
  box-shadow: 0 4px 22px #e0d7c6;
  transform: scale(1.025);
}
.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: filter 0.2s;
}
.portfolio-item:hover img,
.portfolio-item:focus img {
  filter: brightness(0.92) blur(0.5px);
}

/* LIGHTBOX */
.lightbox {
  display: none;
  position: fixed;
  z-index: 50;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  background: rgba(0,0,0,0.72);
  align-items: center;
  justify-content: center;
  flex-direction: column; /* Belangrijk: caption onder de foto */
}
.lightbox.open {
  display: flex;
}
.lightbox-img {
  max-width: 90vw;
  max-height: 70vh;
  border-radius: 1.2rem;
  box-shadow: 0 2px 32px #0006;
  border: 6px solid var(--accent);
  background: var(--main-bg);
  animation: fadein 0.3s;
}
@keyframes fadein {
  from { opacity: 0; transform: scale(0.97);}
  to   { opacity: 1; transform: scale(1);}
}
.lightbox-close {
  position: absolute;
  top: 2.5rem;
  right: 3.5rem;
  font-size: 2.5rem;
  color: #fff;
  cursor: pointer;
  z-index: 99;
  text-shadow: 0 2px 12px #000a;
  transition: color 0.15s;
}
.lightbox-close:hover,
.lightbox-close:focus {
  color: var(--accent);
}
.lightbox-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 3rem;
  color: #fff;
  background: rgba(0,0,0,0.15);
  border-radius: 50%;
  padding: 0.06em 0.32em;
  cursor: pointer;
  user-select: none;
  z-index: 99;
  transition: background 0.18s, color 0.18s;
}
.lightbox-arrow-left {
  left: 1.7rem;
}
.lightbox-arrow-right {
  right: 1.7rem;
}
.lightbox-arrow:hover,
.lightbox-arrow:focus {
  color: var(--accent);
  background: rgba(0,0,0,0.30);
}
.lightbox-caption {
  width: 100%;
  max-width: 600px;
  color: var(--brown);
  font-family: var(--font-body);
  font-size: 1.1rem;
  background: var(--accent);
  text-align: center;
  margin-top: 2rem;
  margin-bottom: 0.7rem;
  padding: 0.7em 2em;
  border-radius: 0.7em;
  box-shadow: 0 2px 12px #d8c7b8;
  align-self: center;
}

@media (max-width: 1000px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 700px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .portfolio-section {
    padding: 1.2rem 0.2rem 1.8rem 0.2rem;
  }
  .lightbox-img {
    max-width: 98vw;
    max-height: 55vh;
  }
  .lightbox-close {
    top: 1.1rem;
    right: 1.2rem;
    font-size: 2rem;
  }
  .lightbox-arrow {
    font-size: 2.3rem;
    left: 1rem;
    right: 1rem;
  }
  .lightbox-caption {
    padding: 0.4em 0.5em;
    font-size: 1rem;
  }
}