:root {
  color-scheme: dark;
  --bg: #0a0a0a;
  --panel: rgba(255, 255, 255, 0.04);
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.2);
  --text: #f6f6f3;
  --muted: #7d7d78;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(135, 127, 118, 0.12), transparent 28%),
    radial-gradient(circle at top right, rgba(100, 100, 100, 0.08), transparent 22%),
    var(--bg);
  color: var(--text);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  scrollbar-gutter: stable;
}

body.modal-open {
  overflow: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.012) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(circle at center, black 45%, transparent 100%);
  opacity: 0.22;
}

.page-shell {
  position: relative;
  width: min(1600px, calc(100% - 40px));
  margin: 0 auto;
  padding: 32px 0 24px;
}

.site-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}

.site-header {
  padding: 18px 4px 32px;
}

.site-header h1 {
  margin: 0;
  font-size: clamp(1.5rem, 1.25rem + 0.8vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.04em;
}

.site-brand,
.header-actions {
  display: flex;
  align-items: center;
}

.sort-control {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
}

.sort-control select {
  height: 34px;
  padding: 0 10px;
  border: 1px solid var(--line);
  background: #0a0a0a;
  color: var(--text);
  font: inherit;
}

.gallery-wrap {
  position: relative;
}

.gallery {
  column-count: 5;
  column-gap: 8px;
}

.tile {
  position: relative;
  display: block;
  width: 100%;
  margin: 0 0 8px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: var(--panel);
  overflow: hidden;
  break-inside: avoid;
  box-shadow: var(--shadow);
  cursor: pointer;
}

.tile:hover,
.tile:focus-visible {
  border-color: var(--line-strong);
  outline: none;
}

.tile-image {
  display: block;
  width: 100%;
  height: 100%;
  background: #111;
  object-fit: cover;
}

.tile-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 8px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(10, 10, 10, 0.88);
  color: var(--text);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
}

.tile[data-variant="tall"] {
  margin-top: 6px;
}

.tile[data-variant="wide"] {
  margin-top: 0;
}

.tile[data-variant="feature"] {
  border-color: rgba(255, 255, 255, 0.12);
}

.site-footer {
  padding: 28px 4px 0;
}

.footer-line {
  width: 100%;
  height: 1px;
  background: var(--line);
}

.site-footer p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

.viewer {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  max-width: 100vw;
  max-height: 100vh;
  margin: 0;
  border: 0;
  padding: 0;
  background: rgba(0, 0, 0, 0.94);
  overflow: hidden;
}

.viewer::backdrop {
  background: rgba(0, 0, 0, 0.94);
}

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

.viewer-panel {
  position: relative;
  width: 100%;
  height: 100%;
  padding: 0;
  overflow: hidden;
}

.viewer-topbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  min-height: 64px;
  padding: 16px 20px;
}

.viewer-meta,
.viewer-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.viewer-resolution {
  color: var(--muted);
  font-size: 0.85rem;
}

.download-link {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 16px;
  border: 1px solid var(--line);
  color: var(--text);
  text-decoration: none;
  font-size: 0.85rem;
}

.download-link:hover,
.download-link:focus-visible,
.close-button:hover,
.close-button:focus-visible {
  border-color: var(--line-strong);
  outline: none;
}

.close-button {
  position: relative;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
}

.close-button span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 1px;
  background: var(--text);
}

.close-button span:first-child {
  transform: translate(-50%, -50%) rotate(45deg);
}

.close-button span:last-child {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.viewer-stage {
  position: absolute;
  inset: 0;
  overflow: hidden;
  padding: 76px 20px 20px;
}

.viewer-stage.is-loading::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.viewer-panel img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #050505;
  opacity: 0;
}

.viewer-panel img.is-ready {
  opacity: 1;
}

::selection {
  background: #2d2d2d;
  color: #fff;
}

::-webkit-scrollbar {
  width: 7px;
}

::-webkit-scrollbar-track {
  background: #0a0a0a;
}

::-webkit-scrollbar-thumb {
  background: #222;
}

@media (max-width: 1280px) {
  .gallery {
    column-count: 4;
  }
}

@media (max-width: 960px) {
  .page-shell {
    width: min(100% - 16px, 1600px);
    padding-top: 14px;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    padding: 10px 2px 20px;
  }

  .header-actions {
    width: 100%;
  }

  .gallery {
    column-count: 2;
    column-gap: 6px;
  }

  .tile {
    margin-bottom: 6px;
  }

  .tile[data-variant="tall"],
  .tile[data-variant="wide"] {
    transform: none;
  }
}

@media (max-width: 640px) {
  .tile-badge {
    top: 8px;
    right: 8px;
    min-height: 24px;
    padding: 0 7px;
    font-size: 0.68rem;
  }

  .viewer-panel {
    padding: 0;
  }

  .viewer-topbar {
    align-items: flex-start;
    gap: 12px;
    min-height: 72px;
    padding: 12px;
  }

  .viewer-actions {
    width: 100%;
    justify-content: space-between;
  }

  .download-link {
    height: 36px;
    padding: 0 14px;
  }

  .viewer-meta {
    width: 100%;
  }

  .viewer-stage {
    padding: 88px 12px 12px;
  }

  .sort-control {
    width: 100%;
    justify-content: space-between;
  }

  .sort-control select {
    flex: 1;
    min-width: 140px;
    height: 38px;
  }
}

@media (max-width: 420px) {
  .page-shell {
    width: min(100% - 12px, 1600px);
  }

  .gallery {
    column-count: 1;
  }

  .viewer-topbar {
    padding: 10px;
  }

  .viewer-stage {
    padding: 84px 10px 10px;
  }
}