*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Open Sans', sans-serif;
  color: white;
  user-select: none;
  -webkit-user-select: none;
  background:
    radial-gradient(circle at center, rgba(0,0,0,0) 60%, rgba(0,0,0,0.8) 100%),
    repeating-linear-gradient(to right, rgba(255,255,255,0.15) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(to bottom, rgba(255,255,255,0.15) 0 1px, transparent 1px 40px),
    #000;
  background-attachment: fixed;
}

html, body {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
  display: none;            
}

/* Header */
.header {
  display: flex;
  justify-content: flex-end;
  padding: 20px;
}

.close-btn {
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.projects-section {
  position: relative;
  max-width: 900px;
  width: calc(100% - clamp(2rem, 8vw, 4rem));
  margin: 0 auto;
  overflow: auto;
}

.projects-section h1 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  text-align: center;
}

.gallery {
  column-count: 4;
  column-gap: clamp(14px, 2vw, 16px);
}

@media (max-width: 600px) {
  .gallery {
    column-count: 2;
  }
}

.gallery-item {
  display: inline-block;
  width: 100%;
  margin-bottom: clamp(14px, 2vw, 16px);
  border-radius: 12px;
  background-color: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  box-shadow: 0 4px 8px rgba(0,0,0,0.35);
  overflow: hidden;
  position: relative;
  transition: transform 0.3s ease;
  cursor: pointer;
}

.gallery-item a {
  display: block;
  width: 100%;
  height: 100%;
  text-decoration: none;
  color: inherit;
}

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

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

.gallery-item p {
  position: absolute;
  bottom: 8px;
  right: 12px;
  margin: 0;
  padding: 4px 8px;
  font-size: 0.9rem;
  background: rgba(0,0,0,0.6);
  color: #fff;
  border-radius: 6px;
}

/* Lightbox Background */
.lightbox {
  display: none;
  position: fixed;
  z-index: 9999;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.85);
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.3s ease;
}

/* Kontainer isi */
.lightbox-inner {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 0 20px rgba(0,0,0,0.6);
}

/* Gambar & Video */
.lightbox img,
.lightbox video {
  border-radius: 8px;
  z-index: 998;
  max-height: 80vh; 
  max-width: 80vw; 
  object-fit: contain;
}

/* Tombol Close */
.lightbox .close {
  position: absolute;
  top: -16px;
  right: -12px;
  width: 36px;
  height: 36px;
  background: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  transition: background 0.3s, transform 0.2s;
  z-index: 1000;
  border: none;
  padding: 0;
}

.lightbox .close i {
  font-size: 18px;
  color: #000;
  pointer-events: none;
}

.lightbox .close:hover {
  background: #eee;
  transform: scale(1.1);
}

@keyframes fadeIn {
  from {opacity: 0;}
  to {opacity: 1;}
}