.ephemera-page {
  overflow: hidden;
}

.ephemera-page .cursor {
  display: block;
}

.ephemera-page header,
.ephemera-page footer,
.ephemera-layout {
  width: var(--content-width);
}

.ephemera-page .ephemera-header-name {
  opacity: 1;
}

.ephemera-page header > #site-name,
.ephemera-page header > nav,
.ephemera-page header > .menu-toggle,
.ephemera-page .ephemera-header-name,
.ephemera-page footer,
.ephemera-index {
  opacity: 0;
  animation: portfolio-fade 0.8s ease-out forwards;
}

.ephemera-page header > nav { animation-delay: 0.08s; }
.ephemera-page .ephemera-header-name { animation-delay: 0.12s; }
.ephemera-index { animation-delay: 0.2s; }
.ephemera-page footer { animation-delay: 0.25s; }

.ephemera-layout {
  position: relative;
  z-index: 10;
  height: calc(100dvh - var(--header-height) - var(--footer-height));
  margin: var(--header-height) auto var(--footer-height);
  padding: 32px 0 64px;
  display: grid;
  grid-template-columns: minmax(0, 63fr) minmax(250px, 37fr);
  gap: clamp(40px, 4vw, 64px);
  align-items: start;
  overflow-y: auto;
  overflow-x: clip;
  scrollbar-width: none;
}

.ephemera-layout::-webkit-scrollbar {
  display: none;
}

.ephemera-gallery {
  min-width: 0;
  display: block;
  padding: 8px 10px 40px;
}

.ephemera-gallery-inner {
  display: block;
  width: 100%;
  columns: 4;
  column-gap: clamp(12px, 1.4vw, 22px);
}

.ephemera-card {
  display: inline-block;
  width: 100%;
  min-width: 0;
  margin-bottom: clamp(24px, 3vw, 42px);
  transform: none;
  break-inside: avoid;
  opacity: 0;
  animation: ephemera-card-enter 0.7s ease-out forwards;
  transition: opacity 0.3s ease;
}

.ephemera-card:nth-child(1) { animation-delay: 0.14s; }
.ephemera-card:nth-child(2) { animation-delay: 0.18s; }
.ephemera-card:nth-child(3) { animation-delay: 0.22s; }
.ephemera-card:nth-child(4) { animation-delay: 0.26s; }
.ephemera-card:nth-child(5) { animation-delay: 0.30s; }
.ephemera-card:nth-child(6) { animation-delay: 0.34s; }
.ephemera-card:nth-child(7) { animation-delay: 0.38s; }
.ephemera-card:nth-child(8) { animation-delay: 0.42s; }
.ephemera-card:nth-child(9) { animation-delay: 0.46s; }
.ephemera-card:nth-child(10) { animation-delay: 0.50s; }
.ephemera-card:nth-child(11) { animation-delay: 0.54s; }
.ephemera-card:nth-child(12) { animation-delay: 0.58s; }
.ephemera-card:nth-child(n + 13) { animation-delay: 0.62s; }

.ephemera-card figure {
  margin: 0;
}

.ephemera-media {
  width: 100%;
  overflow: hidden;
}

.ephemera-media img,
.ephemera-media video {
  display: block;
  width: 100%;
  height: auto;
  max-height: 360px;
  object-fit: contain;
  transition: transform 0.35s ease;
}

.ephemera-card figcaption {
  width: fit-content;
  margin-top: 9px;
  margin-right: auto;
  margin-left: auto;
  font-family: var(--mono);
  font-size: clamp(12px, 0.85vw, 14px);
  line-height: 1.35;
  text-align: center;
  transition: opacity 0.25s ease;
}

.ephemera-card figcaption [data-lang],
.ephemera-project-link [data-lang] {
  padding-bottom: 3px;
  background-image: linear-gradient(currentColor, currentColor);
  background-position: left bottom;
  background-repeat: no-repeat;
  background-size: 0 1px;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  transition: background-size 0.3s ease;
}

.ephemera-card:hover .ephemera-media img,
.ephemera-card:hover .ephemera-media video,
.ephemera-card:focus-visible .ephemera-media img,
.ephemera-card:focus-visible .ephemera-media video {
  transform: scale(1.025);
}

.ephemera-card:hover figcaption [data-lang],
.ephemera-card:focus-visible figcaption [data-lang] {
  background-size: 100% 1px;
}

.ephemera-gallery.is-filtering .ephemera-card,
.ephemera-index.is-filtering .ephemera-project-link {
  opacity: 0.25;
}

.ephemera-gallery.is-filtering .ephemera-card.is-highlighted,
.ephemera-index.is-filtering .ephemera-project-link.is-highlighted {
  opacity: 1;
}

.ephemera-index {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  align-self: start;
  padding: 8px 8px 48px 0;
  transform: translateY(-44px);
}

.ephemera-category + .ephemera-category {
  margin-top: clamp(28px, 4vh, 50px);
}

.ephemera-category h2 {
  margin: 0 0 22px;
  font-size: 15px;
  font-weight: 300;
  line-height: 1.35;
}

.ephemera-category ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.ephemera-category li + li {
  margin-top: 7px;
}

.ephemera-project-link {
  display: inline-flex;
  align-items: baseline;
  max-width: 100%;
  font-size: 13px;
  line-height: 1.35;
  transition: transform 0.25s ease, opacity 0.3s ease;
}

.ephemera-project-link:hover,
.ephemera-project-link:focus-visible,
.ephemera-project-link.is-highlighted {
  transform: translateX(4px);
}

.ephemera-project-link:hover [data-lang],
.ephemera-project-link:focus-visible [data-lang],
.ephemera-project-link.is-highlighted [data-lang] {
  background-size: 100% 1px;
}

.ephemera-number {
  flex: 0 0 3.4em;
}

@keyframes ephemera-card-enter {
  from {
    opacity: 0;
    transform: none;
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 768px) {
  .ephemera-page {
    overflow-x: hidden;
    overflow-y: hidden;
  }

  .ephemera-page .cursor {
    display: none !important;
  }

  .ephemera-layout {
    width: var(--content-width);
    height: calc(100dvh - var(--header-height) - var(--footer-height));
    min-height: 0;
    margin: var(--header-height) auto var(--footer-height);
    padding: 24px 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    align-items: stretch;
    overflow: hidden;
  }

  .ephemera-index {
    grid-column: 2;
    grid-row: 1;
    position: static;
    width: 100%;
    height: 100%;
    padding: 0 4px 28px 10px;
    display: flex;
    flex-direction: column;
    justify-content: safe center;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: none;
    transform: translateY(12px);
  }

  .ephemera-gallery {
    grid-column: 1;
    grid-row: 1;
    display: block;
    width: 100%;
    height: 100%;
    padding: 0 0 28px;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: none;
  }

  .ephemera-gallery-inner {
    display: block;
    width: 100%;
    columns: 2;
    column-gap: 10px;
  }

  .ephemera-index::-webkit-scrollbar,
  .ephemera-gallery::-webkit-scrollbar {
    display: none;
  }

  .ephemera-card,
  .ephemera-card[data-size="small"],
  .ephemera-card[data-size="medium"],
  .ephemera-card[data-size="large"] {
    display: inline-block;
    width: 100%;
    margin-bottom: 18px;
    --offset-x: 0px !important;
    --offset-y: 0px !important;
    --rotation: 0deg !important;
    transform: none;
    break-inside: avoid;
    cursor: auto;
  }

  .ephemera-card figcaption,
  .ephemera-project-link {
    font-size: 10px;
  }

  .ephemera-card figcaption {
    line-height: 1.6;
  }

  .ephemera-category h2 {
    margin-bottom: 12px;
    font-size: 11px;
    line-height: 1.4;
  }

  .ephemera-category + .ephemera-category {
    margin-top: 26px;
  }

  .ephemera-category li + li {
    margin-top: 6px;
  }

  .ephemera-project-link {
    display: flex;
    line-height: 1.35;
  }

  .ephemera-number {
    flex-basis: 3.1em;
  }
}

@media (max-width: 430px) {
  .ephemera-layout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .ephemera-gallery-inner {
    column-gap: 7px;
  }

  .ephemera-card,
  .ephemera-card[data-size="small"],
  .ephemera-card[data-size="medium"],
  .ephemera-card[data-size="large"] {
    margin-bottom: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}