:root {
  --bg: #1a1714;
  --surface: #241f1b;
  --border: #3d3228;
  --text: #d4c9b8;
  --muted: #7a6e62;
  --rust: #b5622a;
  --jade: #4a6b52;
  --glow: #e8c97a;
  --flake: #7a2a2a;

  --serif: "Cormorant Garamond", Garamond, "Times New Roman", serif;
  --mono: "IBM Plex Mono", "SF Mono", Menlo, Consolas, monospace;

  --fade: 400ms ease;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { display: block; max-width: 100%; height: auto; }

a {
  color: var(--text);
  text-decoration: none;
  transition: color var(--fade);
}
a:hover { color: var(--rust); }

::selection { background: var(--rust); color: var(--bg); }

/* ---------- shell ---------- */

.shell {
  max-width: 980px;
  margin: 0 auto;
  padding: 4rem 2rem 6rem;
}

@media (max-width: 600px) {
  .shell { padding: 2.5rem 1.25rem 4rem; }
}

/* ---------- nav ---------- */

.nav {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 2rem;
  margin-bottom: 5rem;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.nav .brand {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  color: var(--text);
  text-transform: lowercase;
}

.nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 0;
}

.nav a {
  color: var(--muted);
  text-transform: lowercase;
}

.nav a:hover, .nav a.active { color: var(--text); }

@media (max-width: 600px) {
  .nav { flex-direction: column; gap: 1rem; align-items: flex-start; margin-bottom: 3rem; }
  .nav ul { gap: 1.25rem; flex-wrap: wrap; }
}

/* ---------- footer ---------- */

.foot {
  margin-top: 7rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  display: flex;
  justify-content: space-between;
  text-transform: lowercase;
}

@media (max-width: 600px) {
  .foot { flex-direction: column; gap: 0.5rem; }
}

/* ---------- page header ---------- */

.page-head {
  margin-bottom: 4rem;
}

.page-head h1 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 2.6rem;
  margin: 0 0 0.4rem;
  letter-spacing: 0.01em;
}

.page-head .lede {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
}

.page-head .back {
  display: inline-block;
  margin-bottom: 0.8rem;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
}

/* ---------- gallery grid ---------- */

.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4rem 3rem;
}

@media (max-width: 600px) {
  .gallery { grid-template-columns: 1fr; gap: 3rem; }
}

.tile {
  display: block;
  position: relative;
  overflow: hidden;
}

.tile .frame {
  position: relative;
  background: #0e0c0a;
  overflow: hidden;
}

.tile img {
  width: 100%;
  height: auto;
  display: block;
  transition: opacity var(--fade), transform 800ms ease, filter 800ms ease;
  opacity: 0.92;
}

.tile:hover img {
  opacity: 1;
  transform: scale(1.01);
}

/* inner vignette */
.tile .frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 90px rgba(0,0,0,0.5);
}

/* metadata overlay — appears on hover only */
.tile .overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: 1rem 1.1rem;
  background: linear-gradient(to top, rgba(10,8,6,0.62) 0%, rgba(10,8,6,0.25) 40%, rgba(10,8,6,0) 75%);
  opacity: 0;
  transition: opacity var(--fade);
  pointer-events: none;
}

.tile:hover .overlay { opacity: 1; }

.tile .meta {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.tile .meta .num { color: var(--text); }
.tile .meta .sep { padding: 0 0.45rem; opacity: 0.55; }

/* ---------- areas list ---------- */

.areas {
  margin: 0;
  padding: 0;
  list-style: none;
}

.areas li {
  border-bottom: 1px solid var(--border);
  position: relative;
}

.areas li:last-child { border-bottom: none; }

.areas a {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  position: relative;
  padding: 1.7rem 0;
}

.areas .name {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 1.7rem;
  letter-spacing: 0.02em;
}

.areas .count {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: lowercase;
}

.areas a:hover .name { color: var(--rust); }

.areas .preview {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translate(20px, -50%);
  width: 150px;
  pointer-events: none;
  opacity: 0;
  filter: brightness(0.25) contrast(1.05);
  transition: opacity 700ms ease, filter 900ms ease;
  z-index: 5;
  box-shadow: 0 18px 40px rgba(0,0,0,0.6);
}

.areas li:hover .preview {
  opacity: 1;
  filter: brightness(1) contrast(1);
}

@media (max-width: 760px) {
  .areas .preview { display: none; }
}

/* ---------- prose (about) ---------- */

.prose {
  max-width: 580px;
  font-family: var(--serif);
  font-weight: 300;
  font-size: 1.2rem;
  line-height: 1.75;
  color: var(--text);
}

.prose p { margin: 0 0 1.4rem; }

.prose .ja {
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.95;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.prose hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

.colophon {
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  line-height: 2;
}

.colophon .row { display: flex; justify-content: space-between; gap: 2rem; }
.colophon .row span:first-child { color: var(--text); text-transform: lowercase; }
.colophon a { color: var(--muted); border-bottom: 1px dotted var(--border); }
.colophon a:hover { color: var(--rust); border-color: var(--rust); }

@media (max-width: 600px) {
  .colophon .row { flex-direction: column; gap: 0; }
}

/* ---------- viewer ---------- */

body.viewer {
  background: #0d0b09;
  overflow: hidden;
}

.viewer-stage {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3.5rem 2rem 4.5rem;
}

.viewer-img-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 0;
}

.viewer-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 500ms ease;
  box-shadow: 0 30px 90px rgba(0,0,0,0.7);
}

.viewer-img.in { opacity: 1; }

.viewer-meta {
  margin-top: 1.6rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-align: center;
  min-height: 1.2em;
}

.viewer-meta .num { color: var(--text); }
.viewer-meta .sep { padding: 0 0.45rem; opacity: 0.55; }

.viewer-back {
  position: fixed;
  top: 1.5rem;
  left: 1.5rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: lowercase;
  z-index: 10;
}

.viewer-back:hover { color: var(--text); }

.viewer-hint {
  position: fixed;
  bottom: 1.2rem;
  left: 0;
  right: 0;
  text-align: center;
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: lowercase;
  opacity: 0.5;
  pointer-events: none;
}