/* Akademie-Band — filmstrip subnav for /akademie/* pages */

.akband {
  display: flex;
  gap: 0;
  height: clamp(300px, 36vh, 420px);
  background: #111;
}

.akband-tile {
  position: relative;
  flex: 1 1 0;
  overflow: hidden;
  display: block;
  text-decoration: none;
  outline: none;
  transition: flex-grow 0.55s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.akband-tile + .akband-tile {
  border-left: 1px solid rgba(255, 255, 255, 0.18);
}

.akband-tile:hover,
.akband-tile:focus-visible,
.akband-tile.is-active {
  flex-grow: 1.6;
}

.akband-tile:focus-visible {
  outline: 2px solid #f08300;
  outline-offset: -2px;
}

.akband-image {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: grayscale(1);
  transform: scale(1);
  transition:
    filter 0.5s ease,
    transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.akband-tile:hover .akband-image,
.akband-tile:focus-visible .akband-image,
.akband-tile.is-active .akband-image {
  filter: grayscale(0);
  transform: scale(1.05);
}

.akband:hover .akband-tile:not(:hover):not(.is-active) .akband-image {
  filter: grayscale(1) brightness(0.75);
}

.akband-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(17, 17, 17, 0.25) 0%,
    rgba(17, 17, 17, 0.45) 55%,
    rgba(17, 17, 17, 0.82) 100%
  );
  transition: background 0.5s ease;
}

.akband-tile:hover .akband-scrim,
.akband-tile:focus-visible .akband-scrim,
.akband-tile.is-active .akband-scrim {
  background: linear-gradient(
    180deg,
    rgba(240, 131, 0, 0.15) 0%,
    rgba(140, 70, 0, 0.55) 60%,
    rgba(17, 17, 17, 0.85) 100%
  );
}

.akband-num {
  position: absolute;
  top: 20px;
  left: 24px;
  font-weight: 800;
  color: #f08300;
  font-size: clamp(15px, 1.2vw, 18px);
  letter-spacing: 0.12em;
  font-family: 'Univers', Ebrima, sans-serif;
  z-index: 1;
}

.akband-title {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 800;
  font-size: clamp(20px, 1.9vw, 30px);
  letter-spacing: -0.02em;
  line-height: 1.1;
  font-family: 'Univers', Ebrima, sans-serif;
  z-index: 1;
}

.akband-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 0;
  height: 3px;
  background: #f08300;
  transition: width 0.4s ease;
}

.akband-tile:hover .akband-title::after,
.akband-tile:focus-visible .akband-title::after,
.akband-tile.is-active .akband-title::after {
  width: 44px;
}

.akband-arrow {
  flex-shrink: 0;
  opacity: 0;
  transform: translateX(-6px);
  transition:
    opacity 0.4s ease,
    transform 0.4s ease;
}

.akband-tile:hover .akband-arrow,
.akband-tile:focus-visible .akband-arrow,
.akband-tile.is-active .akband-arrow {
  opacity: 1;
  transform: translateX(0);
}

@media (prefers-reduced-motion: reduce) {
  .akband-tile,
  .akband-image,
  .akband-arrow,
  .akband-title::after {
    transition: none !important;
  }
}

@media (max-width: 768px) {
  .akband {
    display: grid;
    grid-template-columns: 1fr 1fr;
    height: auto;
  }

  .akband-tile {
    height: 150px;
    flex-grow: unset !important;
  }

  .akband-tile + .akband-tile {
    border-left: none;
  }

  .akband-tile:nth-child(odd) {
    border-right: 1px solid rgba(255, 255, 255, 0.18);
  }

  .akband-tile:nth-child(1),
  .akband-tile:nth-child(2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  }

  .akband-tile:hover .akband-image,
  .akband-tile:focus-visible .akband-image,
  .akband-tile.is-active .akband-image {
    transform: none;
  }

  .akband-num {
    top: 14px;
    left: 16px;
  }

  .akband-title {
    left: 16px;
    right: 16px;
    bottom: 16px;
    font-size: clamp(16px, 4vw, 20px);
  }
}