* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scrollbar-gutter: stable;
}

body {
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background: #fdf7ed;
  color: #2a2a2a;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
header {
  text-align: center;
  padding: 5rem 2rem 1.5rem;
}

header h1 {
  font-size: min(2.6rem, 1rem + 3.5vw);
  font-weight: 300;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #1a1a1a;
}

.tagline {
  font-size: 0.85rem;
  letter-spacing: 0.35em;
  text-transform: lowercase;
  color: #999;
  margin-top: 0.6rem;
  font-weight: 300;
  font-style: italic;
}

/* Gallery — masonry via CSS columns */
.gallery {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 3rem;
  column-count: 3;
  column-gap: 1.2rem;
  flex: 1;
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 1.2rem;
  overflow: hidden;
  border-radius: 3px;
  cursor: pointer;
  position: relative;
}

.gallery-item img {
  width: 100%;
  display: block;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1), filter 0.6s ease;
  transform: scale(1) translateZ(0);
}

.gallery-item:hover img {
  transform: scale(1.04) translateZ(0);
  filter: brightness(1.05);
}

/* Watermark */
.watermark {
  position: absolute;
  bottom: 0.6rem;
  right: 0.8rem;
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  font-weight: 300;
  pointer-events: none;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}

/* Lightbox */
.lightbox-content {
  position: relative;
  display: inline-block;
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox-watermark {
  font-size: 0.8rem;
  bottom: 1rem;
  right: 1.2rem;
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(253, 247, 237, 0.3);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 1000;
}

.lightbox.active {
  opacity: 1;
  pointer-events: all;
}

.lightbox-img {
  max-width: 88vw;
  max-height: 88vh;
  object-fit: contain;
  border-radius: 3px;
  box-shadow: 0 5px 30px rgba(0, 0, 0, 0.18);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: none;
  border: none;
  color: #333;
  cursor: pointer;
  font-size: 2rem;
  padding: 1rem;
  opacity: 0.5;
  transition: opacity 0.2s, color 0.2s;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  opacity: 1;
  color: #1a1a1a;
}

.lightbox-close {
  top: 1rem;
  right: 1.5rem;
  font-size: 2.5rem;
}

.lightbox-prev {
  left: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 3rem;
}

.lightbox-next {
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 3rem;
}

/* Footer */
footer {
  text-align: center;
  padding: 3rem 2rem 4rem;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
}

.social-links a {
  color: #aaa;
  transition: color 0.3s ease, transform 0.3s ease;
  display: inline-flex;
}

.social-links a:hover {
  color: #333;
  transform: translateY(-2px);
}

/* Responsive — Tablet */
@media (max-width: 992px) {
  .gallery {
    column-count: 2;
    padding: 1.5rem 2rem;
  }
}

/* Responsive — Mobile */
@media (max-width: 600px) {
  header {
    padding: 3.5rem 1.5rem 1rem;
  }

  header h1 {
    font-size: 1.5rem;
  }

  .gallery {
    column-count: 1;
    padding: 1rem 1.2rem;
    column-gap: 0;
  }

  .gallery-item {
    margin-bottom: 1rem;
  }

  .lightbox-prev,
  .lightbox-next {
    display: none;
  }

  .lightbox-img {
    max-width: 95vw;
    max-height: 75vh;
  }
}