:root {
  color-scheme: dark;
  background: #0a0a0a;
  font-family: Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  background: #0a0a0a;
}

body {
  overflow-x: hidden;
  overflow-y: auto;
}

button,
img {
  -webkit-tap-highlight-color: transparent;
}

.mosaic {
  width: 100%;
  min-height: 100vh;
  background: #0a0a0a;
  opacity: 0;
  transition: opacity 500ms ease;
}

.mosaic.is-ready {
  opacity: 1;
}

.gallery-row {
  display: flex;
  gap: 2px;
  width: 100%;
  min-width: 0;
  overflow: hidden;
}

.gallery-row:not(:last-child) {
  margin-bottom: 2px;
}

.tile {
  position: relative;
  display: block;
  flex-basis: 0;
  min-width: 0;
  width: auto;
  height: 100%;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: #111;
  cursor: zoom-in;
}

.tile img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition:
    opacity 400ms ease,
    filter 350ms ease;
  transition-delay: var(--reveal-delay, 0ms), 0ms;
}

.tile img.is-loaded {
  opacity: 1;
}

@media (hover: hover) {
  .tile:hover img {
    filter: brightness(0.82);
  }
}

.loading {
  position: fixed;
  inset: 0;
  z-index: 5;
  display: grid;
  place-items: center;
  background: #0a0a0a;
  transition:
    opacity 350ms ease,
    visibility 350ms ease;
}

.loading__content {
  display: flex;
  width: min(260px, 70vw);
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.loading__mark {
  display: flex;
  height: 12px;
  align-items: center;
  gap: 5px;
  margin-bottom: 20px;
}

.loading__mark i {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.72);
  animation: loading-pulse 1.15s ease-in-out infinite;
}

.loading__mark i:nth-child(2) {
  animation-delay: 120ms;
}

.loading__mark i:nth-child(3) {
  animation-delay: 240ms;
}

.loading__title,
.loading__note {
  margin: 0;
}

.loading__title {
  color: rgba(255, 255, 255, 0.78);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.loading__note {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.36);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.loading__track {
  position: relative;
  width: 100%;
  height: 1px;
  margin-top: 24px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.12);
}

.loading__bar {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.76);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.loading__value {
  align-self: flex-end;
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.32);
  font-size: 8px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.1em;
}

.loading.is-hidden {
  visibility: hidden;
  opacity: 0;
}

@keyframes loading-pulse {
  0%,
  70%,
  100% {
    opacity: 0.25;
    transform: translateY(0);
  }

  35% {
    opacity: 1;
    transform: translateY(-4px);
  }
}

.viewer {
  width: 100%;
  max-width: none;
  height: 100%;
  max-height: none;
  margin: 0;
  padding: 3.5vh 3.5vw;
  overflow: hidden;
  border: 0;
  background: rgba(8, 8, 8, 0.96);
  opacity: 0;
  transition:
    opacity 220ms ease,
    overlay 220ms allow-discrete,
    display 220ms allow-discrete;
}

.viewer[open] {
  display: grid;
  place-items: center;
  opacity: 1;
}

@starting-style {
  .viewer[open] {
    opacity: 0;
  }
}

.viewer::backdrop {
  background: transparent;
}

.viewer__image {
  display: block;
  max-width: 93vw;
  max-height: 93vh;
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
}

.viewer__close {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 2;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(10, 10, 10, 0.32);
  color: #fff;
  cursor: pointer;
  transition:
    background 180ms ease,
    transform 180ms ease;
}

.viewer__close span {
  position: absolute;
  top: 18px;
  left: 10px;
  width: 18px;
  height: 1px;
  background: currentColor;
}

.viewer__close span:first-child {
  transform: rotate(45deg);
}

.viewer__close span:last-child {
  transform: rotate(-45deg);
}

.viewer__close:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: rotate(4deg);
}

.viewer__arrow {
  position: fixed;
  top: 50%;
  z-index: 2;
  width: 48px;
  height: 72px;
  padding: 0;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.82);
  cursor: pointer;
  transform: translateY(-50%);
  transition:
    color 180ms ease,
    transform 180ms ease;
}

.viewer__arrow--previous {
  left: 12px;
}

.viewer__arrow--next {
  right: 12px;
}

.viewer__arrow span {
  position: absolute;
  top: 25px;
  width: 20px;
  height: 20px;
  border-top: 1px solid currentColor;
  border-left: 1px solid currentColor;
}

.viewer__arrow--previous span {
  left: 17px;
  transform: rotate(-45deg);
}

.viewer__arrow--next span {
  right: 17px;
  transform: rotate(135deg);
}

.viewer__arrow:hover {
  color: #fff;
}

.viewer__arrow--previous:hover {
  transform: translate(-3px, -50%);
}

.viewer__arrow--next:hover {
  transform: translate(3px, -50%);
}

.viewer__counter {
  position: fixed;
  bottom: 18px;
  left: 50%;
  z-index: 2;
  color: rgba(255, 255, 255, 0.58);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.16em;
  transform: translateX(-50%);
}

.viewer__close:focus-visible,
.viewer__arrow:focus-visible,
.tile:focus-visible {
  outline: 1px solid rgba(255, 255, 255, 0.9);
  outline-offset: -2px;
}

@media (max-width: 620px) {
  .viewer {
    padding-inline: 2vw;
  }

  .viewer__arrow {
    display: none;
  }
}

noscript {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 2rem;
  color: #ddd;
  background: #0a0a0a;
}

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