/* ====================================================
   DESIGNS SECTION — Codegrid Mosaic Flip 3D Hover Effect
   12x9 tile grid of 3D cubes flipping to reveal posters
   ==================================================== */

#designs {
  position: relative;
  background: #111111;
  color: #ffffff;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: clamp(3.5rem, 7vh, 6rem) 1.5rem;
  overflow: hidden;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.designs__header {
  text-align: center;
  z-index: 20;
  margin-bottom: clamp(1.5rem, 4vh, 3rem);
}

.designs__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--clr-red);
  margin-bottom: var(--sp-2);
}

.designs__header h2 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #ffffff;
  line-height: 1.1;
}

.designs__header span {
  color: var(--clr-red);
}

.designs__sub {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  margin-top: var(--sp-2);
}

/* Spotlight container */
.mosaic-spotlight {
  position: relative;
  width: 100%;
  max-width: 1300px;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 1000px;
  transform-style: preserve-3d;
}

/* 3D Mosaic Grid Preview */
.mosaic-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  transform-style: preserve-3d;
}

.project-preview {
  --tile-size: 60px;
  display: grid;
  grid-template-columns: repeat(12, var(--tile-size));
  grid-template-rows: repeat(9, var(--tile-size));
  transform-style: preserve-3d;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
  border-radius: 4px;
}

.tile {
  width: var(--tile-size);
  height: var(--tile-size);
  position: relative;
  transform-style: preserve-3d;
  will-change: transform;
}

.tile-face {
  position: absolute;
  width: var(--tile-size);
  height: var(--tile-size);
  background-size: cover;
  background-position: center;
  backface-visibility: hidden;
}

.face-front {
  transform: translateZ(calc(var(--tile-size) / 2));
}

.face-rear {
  transform: rotateY(180deg) translateZ(calc(var(--tile-size) / 2));
}

.face-right {
  transform: rotateY(90deg) translateZ(calc(var(--tile-size) / 2));
}

.face-left {
  transform: rotateY(-90deg) translateZ(calc(var(--tile-size) / 2));
}

.face-top {
  transform: rotateX(90deg) translateZ(calc(var(--tile-size) / 2));
}

.face-bottom {
  transform: rotateX(-90deg) translateZ(calc(var(--tile-size) / 2));
}

/* Navigation List */
.project-list {
  position: absolute;
  bottom: 2.5rem;
  right: clamp(1.5rem, 4vw, 4rem);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  z-index: 25;
  background: rgba(17, 17, 17, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1.25rem 1.75rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.project-list a {
  color: #ffffff;
  text-transform: uppercase;
  font-family: var(--font-mono);
  font-size: clamp(0.85rem, 1.2vw, 0.95rem);
  letter-spacing: 0.12em;
  text-decoration: none;
  cursor: pointer;
  opacity: 0.45;
  transition: all 0.3s var(--ease-expo);
  text-align: right;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
}

.project-list__num {
  font-size: 0.72rem;
  color: var(--clr-red);
  font-weight: 700;
}

.project-list a:hover,
.project-list a.active {
  opacity: 1;
  color: #ffffff;
  transform: translateX(-4px);
}

.project-list a.active .project-list__num {
  text-shadow: 0 0 10px rgba(244, 12, 63, 0.8);
}

/* Responsive Scaling */
@media (max-width: 1024px) {
  .project-preview {
    --tile-size: 48px;
  }
}

@media (max-width: 768px) {
  .mosaic-spotlight {
    flex-direction: column;
    gap: 2rem;
    min-height: auto;
  }

  .project-preview {
    --tile-size: 30px;
  }

  .project-list {
    position: relative;
    bottom: auto;
    right: auto;
    width: 100%;
    max-width: 400px;
    align-items: center;
  }

  .project-list a {
    text-align: center;
    justify-content: center;
  }
}

@media (max-width: 420px) {
  .project-preview {
    --tile-size: 24px;
  }
}