body.page-swipe-ready .panel-image-box,
body.page-swipe-active .panel-image-box,
body.page-swipe-leave .panel-image-box {
  animation-play-state: paused;
}

.accordion {
  margin-left: var(--accordion-right);
  width: calc(100% - var(--accordion-right));
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 20px;
}

.accordion-item {
  border-bottom: var(--line-width) solid #000;
  margin: 0;
  padding: 0;
  width: 100%;
}

.accordion-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-left: 0;
  width: 100%;
  padding: 16px var(--accordion-right-pad) 16px 24px;
  font-size: 26px;
}

.accordion-item summary::-webkit-details-marker {
  display: none;
}

.accordion-item summary span:first-child {
  padding: 0;
  transition: color 260ms ease;
}

.accordion-item summary span:last-child {
  padding: 0;
}

.accordion-arrow {
  display: inline-flex;
  position: relative;
  transition: transform 420ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.accordion-item.is-expanded .accordion-arrow {
  transform: rotate(90deg);
}

.accordion-panel {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 0;
  row-gap: 16px;
  padding: 8px 0 0 24px;
  align-items: start;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 600ms ease, opacity 600ms ease;
}

.panel-image {
  position: relative;
  min-height: 180px;
  height: 100%;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 760ms ease-in, transform 760ms ease-in;
}

.panel-image-box {
  background-color: #f2e0b1;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  min-height: 180px;
  width: 100%;
  height: 100%;
  will-change: background-position;
}

.panel-image-fade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 243, 214, 0) 58%, rgba(255, 243, 214, 0.45) 86%, #fff3d6 100%),
    linear-gradient(180deg, rgba(255, 243, 214, 0) 58%, rgba(255, 243, 214, 0.45) 86%, #fff3d6 100%);
  pointer-events: none;
}

.panel-image-source {
  position: absolute;
  bottom: 10px;
  right: 12px;
  color: #fff;
  font-size: 11px;
  line-height: 1.2;
  letter-spacing: 0.02em;
  text-decoration: none;
  text-shadow: 0 1px 3px rgba(0,0,0,0.8), 0 1px 8px rgba(0,0,0,0.5);
  pointer-events: none;
  max-width: calc(100% - 24px);
}

.panel-image-source[href] {
  pointer-events: auto;
}

.panel-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: stretch;
  padding-bottom: 24px;
  opacity: 0;
  transform: translateY(-12px);
  transition: opacity 720ms ease-in, transform 720ms ease-in;
  max-width: 600px;
  width: min(600px, 100%);
}

.panel-info > .panel-text {
  width: 100%;
}

.accordion-panel.panel-visible .panel-info {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 220ms;
}

.accordion-panel.panel-visible .panel-image {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 520ms;
}

.accordion:not(:has(details[open])) + .page-ornament {
  margin-top: 6px;
}

.panel-text {
  margin: 0;
  font-size: 18px;
  line-height: 1.5;
  font-weight: 300;
}

@keyframes pan-vertical {
  0%,
  100% {
    background-position: 50% 65%;
  }
  50% {
    background-position: 50% 35%;
  }
}

@keyframes pan-horizontal {
  0%,
  100% {
    background-position: 40% 50%;
  }
  50% {
    background-position: 60% 50%;
  }
}


.panel-image-box.pan-vertical {
  animation: pan-vertical 28s ease-in-out infinite;
}

.panel-image-box.pan-horizontal {
  animation: pan-horizontal 26s ease-in-out infinite;
}

.accordion-item summary:hover span:first-child {
  color: var(--highlight);
}

@media (prefers-reduced-motion: reduce) {
  body.page-swipe-ready .panel-image-box,
  body.page-swipe-active .panel-image-box,
  body.page-swipe-leave .panel-image-box {
    animation-play-state: running;
  }
}

@media (max-width: 640px) {
  .accordion {
    padding: 18px 0 32px;
  }

  .accordion-panel {
    grid-template-columns: 1fr;
    padding: 8px 24px 0;
  }

  .accordion-item summary {
    padding: 14px 24px;
    font-size: 20px;
  }

  .panel-info {
    order: 1;
  }

  .panel-image {
    order: 2;
    margin: 0 -24px;
  }

  .panel-image-fade {
    background:
      linear-gradient(90deg, rgba(255, 243, 214, 0) 45%, rgba(255, 243, 214, 0.35) 70%, #fff3d6 100%),
      linear-gradient(180deg, #fff3d6 0%, rgba(255, 243, 214, 0.0) 55%);
  }
}

@media (min-width: 820px) {
  .panel-info {
    max-width: 480px;
  }
}

@media (min-width: 1000px) {
  .panel-info {
    max-width: 420px;
  }

  .panel-image {
    min-height: 300px;
    margin-left: 18px;
  }

  .panel-image-fade {
    background:
      linear-gradient(90deg, #fff3d6 0%, rgba(255, 243, 214, 0.45) 18%, rgba(255, 243, 214, 0) 42%),
      linear-gradient(180deg, #fff3d6 0%, rgba(255, 243, 214, 0.0) 45%);
  }
}

@media (min-width: 520px) and (max-width: 999px) {
  .accordion-panel {
    grid-template-columns: 1fr;
    padding: 8px 24px 0;
  }

  .panel-info {
    order: 1;
  }

  .panel-image {
    order: 2;
    margin: 0 -24px;
  }

  .panel-image-fade {
    background:
      linear-gradient(90deg, rgba(255, 243, 214, 0) 45%, rgba(255, 243, 214, 0.35) 70%, #fff3d6 100%),
      linear-gradient(180deg, #fff3d6 0%, rgba(255, 243, 214, 0.0) 62%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .accordion-panel {
    transition: none;
  }

  .panel-image-box {
    animation: none;
  }
}