/* =========================================================
   GALERI.CSS — Grid + Lightbox Green Elegant
========================================================= */

/* ===== Galeri grid ===== */
.gallery{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.gallery-item{ margin: 0; }

/* tombol card */
.gallery-btn{
  width: 100%;
  border: 1px solid color-mix(in srgb, var(--brand) 18%, var(--line));
  border-radius: 18px;
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow);

  background:
    radial-gradient(520px 240px at 10% 0%, rgba(34,197,94,.12), transparent 60%),
    radial-gradient(520px 240px at 90% 0%, rgba(20,184,166,.10), transparent 60%),
    rgba(255,255,255,.10);
}

.gallery-btn img{
  width: 100%;
  height: 190px;
  object-fit: cover;
  display: block;
  transition: transform .25s ease;
}
.gallery-btn:hover img{ transform: scale(1.03); }

@media (max-width: 860px){
  .gallery{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px){
  .gallery{ grid-template-columns: 1fr; }
  .gallery-btn img{ height: 210px; }
}

/* ===== Lightbox ===== */
.lightbox{
  position: fixed;
  inset: 0;
  display: none;
  z-index: 999;
}
.lightbox.open{ display: block; }

.lightbox-backdrop{
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.65);
}

.lightbox-panel{
  position: relative;
  width: min(980px, 92vw);
  margin: 5vh auto 0;

  background:
    radial-gradient(700px 300px at 10% 0%, rgba(34,197,94,.12), transparent 60%),
    radial-gradient(700px 300px at 90% 0%, rgba(20,184,166,.10), transparent 60%),
    rgba(255,255,255,.10);

  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 14px;

  backdrop-filter: blur(14px);
}

@media (prefers-color-scheme: dark){
  .lightbox-panel{
    background:
      radial-gradient(700px 300px at 10% 0%, rgba(34,197,94,.10), transparent 60%),
      radial-gradient(700px 300px at 90% 0%, rgba(20,184,166,.08), transparent 60%),
      rgba(0,0,0,.22);
  }
}
html[data-theme="dark"] .lightbox-panel{
  background:
    radial-gradient(700px 300px at 10% 0%, rgba(34,197,94,.10), transparent 60%),
    radial-gradient(700px 300px at 90% 0%, rgba(20,184,166,.08), transparent 60%),
    rgba(0,0,0,.22);
}

.lightbox-img{
  width: 100%;
  height: min(70vh, 620px);
  object-fit: contain;
  display: block;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--brand) 18%, var(--line));
  background: rgba(0,0,0,.18);
}

.lightbox-caption{
  margin: 10px 6px 0;
  color: var(--sub);
  font-size: 14px;
}

.lightbox-close{
  position: absolute;
  top: 10px;
  right: 10px;

  border: 1px solid color-mix(in srgb, var(--brand) 18%, var(--line));
  background: rgba(0,0,0,.22);
  color: var(--text);

  border-radius: 12px;
  width: 40px;
  height: 40px;
  cursor: pointer;
}

.lightbox-nav{
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 14px;

  border: 1px solid var(--line);
  background: rgba(0,0,0,.28);
  color: var(--text);

  cursor: pointer;
  font-size: 28px;
  line-height: 1;
  display: grid;
  place-items: center;
}
.lightbox-nav.prev{ left: 8px; }
.lightbox-nav.next{ right: 8px; }

@media (max-width: 720px){
  .lightbox-panel{ margin-top: 3vh; }
  .lightbox-nav{ display:none; }
}