.photo-mosaic {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 4px;
  z-index: 0;
  background: #0b2334;
  overflow: hidden;
}

.photo-mosaic::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(7,24,39,.94), rgba(7,24,39,.76) 42%, rgba(7,24,39,.35)), linear-gradient(0deg, rgba(7,24,39,.58), transparent 55%);
}

.mosaic-tile {
  position: relative;
  overflow: hidden;
  background: #153044;
  min-width: 0;
  min-height: 0;
}

.mosaic-tile:nth-child(1), .mosaic-tile:nth-child(8) { grid-column: span 2; }
.mosaic-tile:nth-child(4) { grid-row: span 2; }

.mosaic-tile img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.045);
  transition: opacity 1.4s ease, transform 7s ease;
  filter: saturate(.88) contrast(1.05);
}

.mosaic-tile img.is-visible { opacity: 1; transform: scale(1); }
.hero-mosaic { height: 100%; }

.hero-mosaic::before {
  content: "";
  position: absolute;
  inset: auto -5% -24% 30%;
  height: 58%;
  z-index: 2;
  background: linear-gradient(168deg, transparent 0 38%, rgba(239,248,249,.88) 38.4% 100%);
  clip-path: polygon(0 48%,18% 25%,34% 45%,53% 8%,68% 43%,84% 21%,100% 50%,100% 100%,0 100%);
}

.login-mosaic {
  inset: 0 0 0 42%;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(4, 1fr);
}

.login-mosaic::after { background: linear-gradient(90deg, #071827, rgba(7,24,39,.72) 20%, rgba(7,24,39,.25)), linear-gradient(0deg, rgba(7,24,39,.6), transparent); }
.login-mosaic .mosaic-tile:nth-child(1), .login-mosaic .mosaic-tile:nth-child(8) { grid-column: span 1; }
.login-mosaic .mosaic-tile:nth-child(3), .login-mosaic .mosaic-tile:nth-child(9) { grid-column: span 2; }

@media (max-width: 850px) {
  .login-mosaic { inset: 42% 0 0 15%; opacity: .8; }
  .hero-mosaic { grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(4, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  .mosaic-tile img { transition: none; }
}