/* Base */
body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #020617;
  color: white;
  overflow-x: hidden;
}

/* Background Map */
.background-map {
  position: fixed;
  inset: 0;
  background: url('https://upload.wikimedia.org/wikipedia/commons/8/80/World_map_-_low_resolution.svg') center/cover no-repeat;
  opacity: 0.08;
  z-index: -2;
  filter: hue-rotate(180deg) saturate(200%);
}

/* SVG overlay for lines */
.map-overlay {
  position: fixed;
  inset: 0;
  z-index: 5;
  pointer-events: none;
}

/* Header */
header {
  text-align: center;
  padding: 40px 20px;
}

/* Gallery Layout */
.gallery {
  column-count: 4;
  column-gap: 16px;
  padding: 20px;
}

@media (max-width: 1000px) {
  .gallery { column-count: 2; }
}

@media (max-width: 600px) {
  .gallery { column-count: 1; }
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 16px;
}

/* Neon Image Card */
.gallery img {
  width: 100%;
  border-radius: 12px;
  display: block;
  cursor: pointer;
  transition: transform 0.25s ease;
  position: relative;
  z-index: 1;
}

/* Neon glow wrapper */
.gallery-item {
  position: relative;
  border-radius: 12px;
}

.gallery-item::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 12px;
  padding: 2px;
  background: linear-gradient(120deg, #00eaff, #0077ff, #00eaff);
  -webkit-mask: 
    linear-gradient(#000 0 0) content-box, 
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.6;
  transition: 0.3s;
}

.gallery-item:hover::before {
  opacity: 1;
  filter: drop-shadow(0 0 12px #00eaff);
}

.gallery img:hover {
  transform: scale(1.03);
}

/* LIGHTBOX (FULLSCREEN) */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.95);
  display: none;
  z-index: 9999;
}

/* Layout inside lightbox */
.lightbox-content {
  display: flex;
  height: 100%;
  width: 100%;
}

/* Image viewer */
.viewer {
  flex: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.viewer img {
  max-width: 100%;
  max-height: 85vh;
  border-radius: 12px;
  box-shadow: 0 0 25px rgba(0, 200, 255, 0.25);
}

/* Side panel */
.side-panel {
  flex: 1;
  background: rgba(10, 20, 40, 0.9);
  border-left: 1px solid rgba(0, 200, 255, 0.3);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.side-panel h2 {
  margin-top: 0;
  color: #00eaff;
}

.side-panel p {
  margin: 8px 0;
  color: #cbd5f5;
}

/* Close button */
#close {
  position: absolute;
  top: 20px;
  right: 32px;
  font-size: 42px;
  cursor: pointer;
  color: white;
  z-index: 10;
}

/* Mobile adjustment */
@media (max-width: 900px) {
  .lightbox-content {
    flex-direction: column;
  }

  .side-panel {
    border-left: none;
    border-top: 1px solid rgba(0, 200, 255, 0.3);
  }
}