/* Photography Portfolio - Clean Minimalist Design */

:root {
  --bg-primary: #ffffff;
  --bg-overlay: rgba(0, 0, 0, 0.95);
  --text-primary: #1a1a1a;
  --text-secondary: #666666;
  --border-color: #e5e5e5;
  --accent: #000000;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Header */
header {
  padding: 3rem 2rem 2rem;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

h1 {
  font-size: 2.5rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 400;
  letter-spacing: 0.1em;
}

/* Masonry Gallery */
.gallery-container {
  padding: 3rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.masonry-gallery {
  column-count: 3;
  column-gap: 1.5rem;
  margin: 0 auto;
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 1.5rem;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  background-color: #f5f5f5;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: opacity 0.3s ease;
}

.gallery-item:hover img {
  opacity: 0.9;
}

/* Lightbox Overlay */
.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-overlay);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lightbox.active {
  display: flex;
  opacity: 1;
}

.lightbox-content {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}


.lightbox-content img {
  max-width: 80vw;   /* keeps space for arrows outside image */
  max-height: 85vh;
  object-fit: contain;
  display: block;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}


/* Navigation Buttons */
.lightbox-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: transparent; /* cleaner look */
  border: none; /* remove border */
  outline: none; /* remove focus outline */
  box-shadow: none;
  color: #ffffff;
  font-size: 3rem; /* slightly bigger for mobile tap */
  width: auto;
  height: auto;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10001;
  transition: opacity 0.2s ease;
}

/* remove tap highlight on mobile */
.lightbox-btn:focus,
.lightbox-btn:active {
  outline: none;
}

/* hover effect */
.lightbox-btn:hover {
  opacity: 0.7;
}


.lightbox-btn:hover {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
}

.lightbox-prev {
  left: 30px;
}

.lightbox-next {
  right: 30px;
}

.lightbox-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #ffffff;
  font-size: 2rem;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10001;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  backdrop-filter: blur(10px);
}

.lightbox-close:hover {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
}

/* Footer */
footer {
  padding: 3rem 2rem;
  text-align: center;
  border-top: 1px solid var(--border-color);
  margin-top: 3rem;
}

footer p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .masonry-gallery {
    column-count: 2;
  }

  h1 {
    font-size: 2rem;
  }
}

@media (max-width: 640px) {
  .masonry-gallery {
    column-count: 1;
  }

  h1 {
    font-size: 1.75rem;
  }

  header {
    padding: 2rem 1rem 1.5rem;
  }

  .gallery-container {
    padding: 2rem 1rem;
  }

  .lightbox-btn {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }

  .lightbox-prev {
    left: 1rem;
  }

  .lightbox-next {
    right: 1rem;
  }

  .lightbox-close {
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    font-size: 1.5rem;
  }
}

/* Loading Animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.gallery-item {
  animation: fadeIn 0.6s ease forwards;
  opacity: 0;
}

.gallery-item:nth-child(1) { animation-delay: 0.1s; }
.gallery-item:nth-child(2) { animation-delay: 0.15s; }
.gallery-item:nth-child(3) { animation-delay: 0.2s; }
.gallery-item:nth-child(4) { animation-delay: 0.25s; }
.gallery-item:nth-child(5) { animation-delay: 0.3s; }
.gallery-item:nth-child(6) { animation-delay: 0.35s; }
.gallery-item:nth-child(7) { animation-delay: 0.4s; }
.gallery-item:nth-child(8) { animation-delay: 0.45s; }
.gallery-item:nth-child(9) { animation-delay: 0.5s; }
.gallery-item:nth-child(10) { animation-delay: 0.55s; }
.gallery-item:nth-child(11) { animation-delay: 0.6s; }
.gallery-item:nth-child(12) { animation-delay: 0.65s; }
.gallery-item:nth-child(13) { animation-delay: 0.7s; }
.gallery-item:nth-child(14) { animation-delay: 0.75s; }
.gallery-item:nth-child(15) { animation-delay: 0.8s; }