/* React Bits–style Dome Gallery (vanilla) */
.sphere-root {
  position: relative;
  width: 100%;
  height: 100%;
  --radius: 520px;
  --viewer-pad: 72px;
  --circ: calc(var(--radius) * 3.14);
  --rot-y: calc((360deg / var(--segments-x)) / 2);
  --rot-x: calc((360deg / var(--segments-y)) / 2);
  --item-width: calc(var(--circ) / var(--segments-x));
  --item-height: calc(var(--circ) / var(--segments-y));
  --segments-x: 35;
  --segments-y: 35;
  --overlay-blur-color: #0a0a0a;
  --tile-radius: 16px;
  --enlarge-radius: 24px;
  --image-filter: none;
}

.sphere-root * { box-sizing: border-box; }
.sphere, .item, .item__image { transform-style: preserve-3d; }

main.sphere-main {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  touch-action: pan-y pinch-zoom;
  user-select: none;
  background: transparent;
  cursor: grab;
}

main.sphere-main.is-dragging { cursor: grabbing; }

.stage {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  perspective: calc(var(--radius) * 2);
  perspective-origin: 50% 50%;
}

.sphere {
  transform: translateZ(calc(var(--radius) * -1));
  will-change: transform;
}

.overlay,
.overlay--blur {
  position: absolute;
  inset: 0;
  margin: auto;
  z-index: 3;
  pointer-events: none;
}

.overlay {
  background-image: radial-gradient(rgba(235, 235, 235, 0) 55%, var(--overlay-blur-color) 100%);
}

.overlay--blur {
  -webkit-mask-image: radial-gradient(rgba(235, 235, 235, 0) 70%, var(--overlay-blur-color) 92%);
  mask-image: radial-gradient(rgba(235, 235, 235, 0) 70%, var(--overlay-blur-color) 92%);
  backdrop-filter: blur(2px);
}

.item {
  width: calc(var(--item-width) * var(--item-size-x));
  height: calc(var(--item-height) * var(--item-size-y));
  position: absolute;
  top: -999px;
  bottom: -999px;
  left: -999px;
  right: -999px;
  margin: auto;
  transform-origin: 50% 50%;
  backface-visibility: hidden;
  transform: rotateY(calc(var(--rot-y) * (var(--offset-x) + ((var(--item-size-x) - 1) / 2)) + var(--rot-y-delta, 0deg)))
    rotateX(calc(var(--rot-x) * (var(--offset-y) - ((var(--item-size-y) - 1) / 2)) + var(--rot-x-delta, 0deg)))
    translateZ(var(--radius));
}

.item__image {
  position: absolute;
  display: block;
  inset: 11px;
  border-radius: var(--tile-radius);
  overflow: hidden;
  backface-visibility: hidden;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.13);
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.42);
  opacity: 0.82;
  transition: opacity 250ms ease, border-color 250ms ease, box-shadow 250ms ease;
}

.item__image:hover,
.item__image:focus-visible {
  opacity: 1;
  border-color: rgba(13, 159, 79, 0.72);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.52);
}

.item__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  filter: var(--image-filter);
}

.viewer {
  position: absolute;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--viewer-pad);
}

.viewer .scrim {
  position: absolute;
  inset: 0;
  z-index: 10;
  background: rgba(0, 0, 0, 0.55);
  pointer-events: none;
  opacity: 0;
  transition: opacity 400ms ease;
  backdrop-filter: blur(3px);
}

.sphere-root[data-enlarging='true'] .viewer .scrim {
  opacity: 1;
  pointer-events: all;
}

.viewer .enlarge {
  position: absolute;
  z-index: 30;
  width: min(280px, 70vw);
  height: min(380px, 70vh);
  border-radius: var(--enlarge-radius);
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  border: 2px solid var(--green, #0d9f4f);
  pointer-events: none;
}

.viewer .enlarge img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.edge-fade {
  position: absolute;
  left: 0;
  right: 0;
  height: 100px;
  z-index: 5;
  pointer-events: none;
  background: linear-gradient(to bottom, transparent, var(--overlay-blur-color));
}

.edge-fade--top { top: 0; transform: rotate(180deg); }
.edge-fade--bottom { bottom: 0; }

body.dg-scroll-lock { overflow: hidden; }

.hero-with-dome {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: 1fr auto;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(circle at 50% 34%, rgba(255, 255, 255, 0.055), transparent 34%),
    #080b09;
  box-shadow:
    inset 6px 0 0 rgba(0, 122, 61, 0.9),
    inset -6px 0 0 rgba(210, 16, 52, 0.9);
}

.hero-with-dome::before,
.hero-with-dome::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Soft Algerian flag colours framing the gallery. */
.hero-with-dome::before {
  z-index: 0;
  background:
    radial-gradient(ellipse at left center, rgba(0, 122, 61, 0.42), transparent 34%),
    radial-gradient(ellipse at right center, rgba(210, 16, 52, 0.34), transparent 32%);
}

/* Creates a calmer centre and lets the background breathe around the dome. */
.hero-with-dome::after {
  z-index: 4;
  background:
    linear-gradient(90deg,
      rgba(0, 122, 61, 0.25) 0%,
      transparent 13%,
      transparent 87%,
      rgba(210, 16, 52, 0.23) 100%),
    radial-gradient(circle at 50% 36%,
      rgba(8, 11, 9, 0.08) 0%,
      rgba(8, 11, 9, 0.16) 34%,
      rgba(8, 11, 9, 0.72) 100%);
}

.hero-dome-wrap {
  position: absolute;
  inset: 2% 3% 7%;
  z-index: 1;
  border-radius: clamp(28px, 5vw, 72px);
  overflow: hidden;
  -webkit-mask-image: radial-gradient(ellipse at center, #000 55%, transparent 100%);
  mask-image: radial-gradient(ellipse at center, #000 55%, transparent 100%);
}

.hero-dome-wrap .sphere-root {
  width: 100%;
  height: 100%;
}

.hero-content-overlay {
  position: relative;
  z-index: 6;
  text-align: center;
  color: #fff;
  padding: 5.5rem 1.25rem 2.5rem;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 0.75rem;
  min-height: 100vh;
  min-height: 100dvh;
}

.hero-content-overlay .hero-ctas {
  pointer-events: auto;
  margin-top: 0.5rem;
}

.hero-content-overlay .hero-brand {
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.75);
  font-size: clamp(1.7rem, 4.8vw, 3.2rem);
}

.hero-content-overlay .hero-sub {
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.85);
  max-width: 640px;
}

.dome-empty-hero {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.25);
  font-size: 1rem;
  z-index: 2;
}

@media (max-width: 700px) {
  .hero-with-dome,
  .hero-content-overlay {
    min-height: 82vh;
    min-height: 82svh;
  }

  .hero-dome-wrap {
    inset: 2% -10% 7%;
    border-radius: 28px;
  }

  .hero-with-dome {
    box-shadow:
      inset 4px 0 0 rgba(0, 122, 61, 0.9),
      inset -4px 0 0 rgba(210, 16, 52, 0.9);
  }

  .hero-with-dome::before {
    background:
      radial-gradient(ellipse at left center, rgba(0, 122, 61, 0.32), transparent 42%),
      radial-gradient(ellipse at right center, rgba(210, 16, 52, 0.27), transparent 40%);
  }

  .item__image {
    inset: 9px;
  }

  .hero-content-overlay {
    padding-top: 4.75rem;
  }

  .viewer {
    padding: 1rem;
  }

  .viewer .enlarge {
    width: min(260px, 76vw);
    height: min(350px, 62svh);
  }
}