:root {
  --bg: #16140f;
  --bg-alt: #1c1912;
  --paper: #ece5d4;
  --fg: #ece5d4;
  --muted: #948a76;
  --accent: #c9a668;
  --border: #3a3428;
  --gap: 10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
}

body {
  position: relative;
}

/* subtle film-grain overlay across the whole page */
.grain {
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,\
<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'>\
<filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter>\
<rect width='100%25' height='100%25' filter='url(%23n)'/>\
</svg>");
  background-size: 160px 160px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 2rem 2rem 1.25rem;
  background: linear-gradient(var(--bg) 60%, transparent);
}

.logo {
  font-family: "DotGothic16", "IBM Plex Mono", monospace;
  font-weight: 400;
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0;
  color: var(--paper);
  text-shadow: 1px 0 0 var(--accent);
}

.section-nav {
  display: flex;
  gap: 1.75rem;
}

.section-nav button {
  background: none;
  border: none;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 0.3rem 0;
  position: relative;
  transition: color 0.2s ease;
}

.section-nav button::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.section-nav button:hover {
  color: var(--fg);
}

.section-nav button.active {
  color: var(--accent);
}

.section-nav button.active::after {
  transform: scaleX(1);
}

#gallery {
  columns: 4 240px;
  column-gap: var(--gap);
  padding: 1rem 2rem 3rem;
}

@media (max-width: 900px) {
  #gallery { columns: 2 200px; }
}
@media (max-width: 520px) {
  #gallery { columns: 1; padding: 1rem 1rem 3rem; }
}

#gallery figure {
  margin: 0 0 var(--gap);
  break-inside: avoid;
  cursor: pointer;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 8px 8px 0;
  position: relative;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

#gallery figure:hover {
  border-color: var(--muted);
  transform: translateY(-2px);
}

#gallery img {
  display: block;
  width: 100%;
  height: auto;
  filter: saturate(0.92) contrast(1.03);
  transition: opacity 0.4s ease, filter 0.3s ease;
  opacity: 0;
}

#gallery figure:hover img {
  filter: saturate(1) contrast(1.05);
}

#gallery img.loaded {
  opacity: 1;
}

#gallery figure figcaption {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--muted);
  padding: 0.5rem 0.15rem 0.6rem;
  text-transform: uppercase;
}

.empty-state {
  padding: 4rem 2rem;
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}

.site-footer {
  text-align: center;
  padding: 2rem 1rem 3rem;
  color: var(--muted);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.lightbox {
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(28, 25, 18, 0.97) 0%, rgba(10, 9, 6, 0.99) 100%);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.lightbox.open {
  display: flex;
}

.lightbox-frame {
  margin: 0;
  max-width: 88vw;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 14px 14px 0;
}

.lightbox-img {
  max-width: 86vw;
  max-height: 78vh;
  object-fit: contain;
  filter: saturate(0.92) contrast(1.03);
}

.lightbox-caption {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.7rem 0.2rem 0.8rem;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: none;
  border: none;
  color: var(--paper);
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 2.2rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.5rem 1rem;
  opacity: 0.6;
  transition: opacity 0.15s ease;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  opacity: 1;
  color: var(--accent);
}

.lightbox-close {
  top: 1.25rem;
  right: 1.25rem;
  font-size: 1.6rem;
}

.lightbox-prev {
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-next {
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
}

@media (max-width: 600px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem 1.25rem 1rem;
  }
  .section-nav {
    gap: 1rem;
    flex-wrap: wrap;
  }
}