/* ============================================
   GHRC Website - Photo Mosaic Letters (Redesigned)
   Bold block letters, large visible photos
   ============================================ */

.mosaic {
  padding: var(--section-padding);
  background: var(--bg-secondary);
  overflow: hidden;
}

.mosaic__container {
  max-width: var(--max-width-wide);
  margin: 0 auto;
}

.mosaic__letters {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: nowrap;
}

/* Each letter wrapper - much larger and wider */
.mosaic__letter {
  position: relative;
  width: 260px;
  height: 320px;
  cursor: pointer;
  transition: transform var(--duration-normal) var(--ease-out);
}

.mosaic__letter:hover {
  transform: scale(1.04);
}

/* Photo grid behind the letter - fewer, BIGGER photos (2x3 grid) */
.mosaic__photo-grid {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 3px;
  clip-path: var(--letter-clip);
  overflow: hidden;
}

.mosaic__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Zoom into faces - the photos are zoomed in more */
  object-position: center 30%;
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
  transform: scale(1.15);
}

.mosaic__photo.loaded {
  opacity: 1;
}

.mosaic__letter:hover .mosaic__photo {
  transform: scale(1.25);
}

/* SVG Clip Paths for each letter - using bold block font paths */
.mosaic__letter--G { --letter-clip: url(#clip-G); }
.mosaic__letter--H { --letter-clip: url(#clip-H); }
.mosaic__letter--R { --letter-clip: url(#clip-R); }
.mosaic__letter--C { --letter-clip: url(#clip-C); }

/* Fallback colored letters */
.mosaic__fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 260px;
  font-weight: var(--font-black);
  font-family: var(--font-display);
  color: var(--color-primary);
  opacity: 0.12;
  pointer-events: none;
  transition: opacity var(--duration-slow) var(--ease-out);
}

.mosaic__photo-grid.loaded ~ .mosaic__fallback {
  opacity: 0;
}

/* Green border/outline around letters for definition */
.mosaic__letter::before {
  content: '';
  position: absolute;
  inset: -3px;
  clip-path: var(--letter-clip);
  background: var(--color-primary);
  z-index: -1;
  opacity: 0.3;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.mosaic__letter:hover::before {
  opacity: 0.6;
}

/* Glow effect on hover */
.mosaic__letter::after {
  content: '';
  position: absolute;
  inset: -15px;
  background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
  pointer-events: none;
  z-index: -2;
}

.mosaic__letter:hover::after {
  opacity: 1;
}

/* ── Photo Modal on Click ── */
.mosaic__modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

.mosaic__modal.active {
  opacity: 1;
  visibility: visible;
}

.mosaic__modal-image {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  transform: scale(0.9);
  transition: transform var(--duration-normal) var(--ease-spring);
}

.mosaic__modal.active .mosaic__modal-image {
  transform: scale(1);
}

.mosaic__modal-close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  color: white;
  font-size: var(--text-3xl);
  cursor: pointer;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transition: background var(--duration-fast);
}

.mosaic__modal-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ── Refresh Button ── */
.mosaic__refresh {
  display: flex;
  justify-content: center;
  margin-top: var(--space-8);
}

.mosaic__refresh-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  background: var(--bg-card);
}

.mosaic__refresh-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.mosaic__refresh-btn svg {
  transition: transform var(--duration-normal) var(--ease-out);
}

.mosaic__refresh-btn:hover svg {
  transform: rotate(180deg);
}

/* ── Responsive ── */
@media (max-width: 1200px) {
  .mosaic__letter {
    width: 200px;
    height: 260px;
  }
  .mosaic__fallback {
    font-size: 200px;
  }
}

@media (max-width: 900px) {
  .mosaic__letter {
    width: 160px;
    height: 210px;
  }
  .mosaic__letters {
    gap: var(--space-3);
  }
  .mosaic__fallback {
    font-size: 160px;
  }
}

@media (max-width: 700px) {
  .mosaic__letters {
    flex-wrap: wrap;
    gap: var(--space-3);
  }
  .mosaic__letter {
    width: 140px;
    height: 180px;
  }
  .mosaic__photo-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
  }
  .mosaic__fallback {
    font-size: 130px;
  }
}

@media (max-width: 400px) {
  .mosaic__letter {
    width: 72px;
    height: 95px;
  }
  .mosaic__photo-grid {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(2, 1fr);
  }
  .mosaic__fallback {
    font-size: 70px;
  }
}