@font-face {
  font-family: "Jost";
  src: url("../assets/fonts/jost-400-latin-ext.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Archivo";
  src: url("../assets/fonts/archivo-400-latin-ext.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg: #111214;
  --paper: #e9e8e3;
  --ink: #f0efeb;
  --muted: rgba(240, 239, 235, 0.46);
  --line: rgba(240, 239, 235, 0.16);
  --accent: #d5c448;
  --header: 76px;
  --toolbar: 72px;
}

* { box-sizing: border-box; }

html, body { width: 100%; min-height: 100%; }

html { background: var(--bg); }

body {
  margin: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 46%, rgba(255, 255, 255, 0.035), transparent 42%),
    var(--bg);
  color: var(--ink);
  font-family: "Archivo", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

button, a { color: inherit; font: inherit; }
button { border: 0; }
a { text-decoration: none; }

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 50;
  padding: 0.7rem 1rem;
  background: var(--paper);
  color: #111;
  transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }

.catalog-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  height: var(--header);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 clamp(1rem, 2.8vw, 2.75rem);
  border-bottom: 1px solid var(--line);
  background: rgba(17, 18, 20, 0.9);
  backdrop-filter: blur(18px);
}

.catalog-brand {
  width: 48px;
  height: 44px;
  justify-self: start;
  display: grid;
  place-items: center;
}

.catalog-brand img { display: block; width: 44px; height: auto; }

.catalog-edition {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.62rem;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--muted);
}
.edition-rule { width: clamp(2.5rem, 5vw, 5rem); height: 1px; background: var(--line); }

.catalog-actions { justify-self: end; display: flex; align-items: center; gap: 1.1rem; }

.catalog-download {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0 0.25rem;
  font-size: 0.62rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.catalog-download svg { width: 17px; fill: none; stroke: currentColor; stroke-width: 1.25; }

.catalog-close {
  position: relative;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  transition: background 0.25s, color 0.25s;
}
.catalog-close span { position: absolute; top: 50%; left: 50%; width: 14px; height: 1px; background: currentColor; }
.catalog-close span:first-child { transform: translate(-50%, -50%) rotate(45deg); }
.catalog-close span:last-child { transform: translate(-50%, -50%) rotate(-45deg); }

.catalog-main {
  position: fixed;
  inset: var(--header) 0 var(--toolbar);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.catalog-viewport {
  position: relative;
  width: min(74vw, calc((100dvh - var(--header) - var(--toolbar) - 2.4rem) * 0.8));
  height: calc(100dvh - var(--header) - var(--toolbar) - 2.4rem);
  display: grid;
  place-items: center;
  user-select: none;
  touch-action: pan-y;
}

.catalog-page {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  background: #292929;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.46), 0 0 0 1px rgba(255, 255, 255, 0.09);
  opacity: 1;
  transform: translateZ(0);
  transition: opacity 0.22s ease, transform 0.45s cubic-bezier(.22,.61,.36,1);
}
.catalog-page.is-changing { opacity: 0; transform: scale(0.992); }

.catalog-loader {
  position: absolute;
  z-index: -1;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  opacity: 0;
}
.catalog-loader.is-active { opacity: 1; }
.catalog-loader span { width: 18px; height: 18px; border: 1px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.page-hit { position: absolute; inset-block: 0; width: 50%; background: transparent; cursor: pointer; }
.page-hit-prev { left: 0; cursor: w-resize; }
.page-hit-next { right: 0; cursor: e-resize; }

.catalog-arrow {
  position: absolute;
  top: 50%;
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(17, 18, 20, 0.45);
  transform: translateY(-50%);
  cursor: pointer;
  transition: background 0.25s, color 0.25s, opacity 0.25s;
}
.catalog-arrow svg { width: 26px; fill: none; stroke: currentColor; stroke-width: 1; }
.catalog-prev { left: clamp(1.25rem, 4vw, 4.5rem); }
.catalog-next { right: clamp(1.25rem, 4vw, 4.5rem); }
.catalog-arrow:disabled { opacity: 0.2; cursor: default; }

.catalog-meta {
  position: absolute;
  top: 50%;
  display: flex;
  gap: 1.2rem;
  font-size: 0.52rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(240, 239, 235, 0.27);
  writing-mode: vertical-rl;
}
.catalog-meta-left { left: 1.2rem; transform: translateY(-50%) rotate(180deg); }
.catalog-meta-right { right: 1.2rem; transform: translateY(-50%); }

.catalog-toolbar {
  position: fixed;
  inset: auto 0 0;
  z-index: 20;
  height: var(--toolbar);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 clamp(1rem, 2.8vw, 2.75rem) max(0px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  background: rgba(17, 18, 20, 0.92);
  backdrop-filter: blur(18px);
}

.catalog-index-button {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0;
  background: transparent;
  cursor: pointer;
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.catalog-index-button svg { width: 15px; fill: none; stroke: currentColor; stroke-width: 1; }

.catalog-progress { display: flex; align-items: center; gap: 0.8rem; font-size: 0.65rem; font-variant-numeric: tabular-nums; }
.catalog-current { color: var(--ink); }
.catalog-total { color: var(--muted); }
.catalog-progress-track { position: relative; width: clamp(5rem, 11vw, 9rem); height: 1px; overflow: hidden; background: var(--line); }
.catalog-progress-track span { position: absolute; inset: 0 auto 0 0; width: 4.7619%; background: var(--accent); transition: width 0.4s cubic-bezier(.22,.61,.36,1); }

.catalog-hint { justify-self: end; font-size: 0.55rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }

.catalog-index {
  position: fixed;
  inset: var(--header) 0 var(--toolbar);
  z-index: 15;
  display: grid;
  grid-template-rows: auto 1fr;
  padding: clamp(1.25rem, 2.8vw, 2.75rem);
  background: rgba(17, 18, 20, 0.985);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s, transform 0.4s, visibility 0.3s;
}
.catalog-index.is-open { opacity: 1; visibility: visible; transform: none; }

.catalog-index-head { display: flex; justify-content: space-between; align-items: end; padding-bottom: 1.25rem; border-bottom: 1px solid var(--line); }
.catalog-index-head > div { display: flex; align-items: baseline; gap: 1rem; }
.index-kicker { font-size: 0.58rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.catalog-index-head strong { font-family: "Jost", sans-serif; font-size: clamp(1.8rem, 3vw, 3.2rem); font-weight: 400; letter-spacing: -0.04em; }
.catalog-index-head button { padding: 0.7rem 0; background: none; cursor: pointer; font-size: 0.58rem; letter-spacing: 0.14em; text-transform: uppercase; border-bottom: 1px solid var(--line); }

.catalog-thumbs {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: clamp(0.8rem, 1.6vw, 1.5rem);
  overflow: auto;
  padding: clamp(1.25rem, 2vw, 2rem) 0;
  scrollbar-width: thin;
}
.catalog-thumb { position: relative; padding: 0; background: none; cursor: pointer; text-align: left; color: inherit; }
.catalog-thumb img { display: block; width: 100%; aspect-ratio: 4 / 5; object-fit: cover; opacity: 0.52; transition: opacity 0.25s, transform 0.35s; }
.catalog-thumb span { display: block; margin-top: 0.5rem; font-size: 0.55rem; letter-spacing: 0.12em; color: var(--muted); }
.catalog-thumb.is-active img { opacity: 1; box-shadow: 0 0 0 1px var(--accent); }

.catalog-status { position: fixed; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

@media (hover: hover) {
  .catalog-close:hover, .catalog-arrow:not(:disabled):hover { background: var(--paper); color: #111; }
  .catalog-download:hover { color: var(--accent); }
  .catalog-thumb:hover img { opacity: 0.9; transform: translateY(-3px); }
}

@media (max-width: 820px) {
  :root { --header: 66px; --toolbar: 66px; }
  .catalog-header { grid-template-columns: 1fr auto; }
  .catalog-edition, .catalog-meta, .catalog-hint { display: none; }
  .catalog-download span { display: none; }
  .catalog-download { min-width: 36px; justify-content: center; }
  .catalog-actions { gap: 0.45rem; }
  .catalog-close { width: 38px; height: 38px; }
  .catalog-main { padding: 0.9rem 0; }
  .catalog-viewport { width: calc(100vw - 2rem); height: calc(100dvh - var(--header) - var(--toolbar) - 1.8rem); }
  .catalog-arrow { top: auto; bottom: 0.65rem; width: 44px; height: 44px; background: rgba(17,18,20,.78); }
  .catalog-prev { left: 1.5rem; }
  .catalog-next { right: 1.5rem; }
  .catalog-toolbar { grid-template-columns: auto 1fr; }
  .catalog-progress { justify-self: end; }
  .catalog-progress-track { width: 5rem; }
  .catalog-thumbs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .catalog-index { padding-inline: 1rem; }
}

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