:root {
  --bg: #0b0b0d;
  --text: #eeece4;
  --muted: #8a8a86;
  --line: #232326;
  --accent: #d98f4e;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.art-site {
  width: min(1100px, 92vw);
  margin: 0 auto;
  padding: 2.4rem 0 4rem;
}

.art-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem 2rem;
  padding-bottom: 1.1rem;
  margin-bottom: 2.4rem;
  border-bottom: 1px solid var(--line);
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.25s ease;
}

.back-link svg {
  transition: transform 0.3s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.back-link:hover,
.back-link:focus-visible {
  color: var(--text);
}

.back-link:hover svg,
.back-link:focus-visible svg {
  transform: translateX(-4px);
}

.back-link:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 6px;
}

.art-note {
  margin: 0;
  color: var(--muted);
}

.art-note a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.art-note a:hover,
.art-note a:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
  outline: none;
}

.art-note-case {
  text-transform: none;
  letter-spacing: 0.08em;
}


.art-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.6rem;
}

.art-frame {
  display: block;
  width: 100%;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: 4px;
  overflow: hidden;
}

.art-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
  transition: transform 0.4s ease, opacity 0.2s ease;
}

.art-frame:hover img {
  transform: scale(1.015);
  opacity: 0.92;
}

.art-frame:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 4px;
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(5, 5, 6, 0.96);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease;
  z-index: 10;
}

.lightbox.open {
  opacity: 1;
  visibility: visible;
}

.lightbox-img {
  max-width: 88vw;
  max-height: 86vh;
  border-radius: 3px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

.lightbox-close,
.lightbox-nav {
  position: absolute;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  opacity: 0.65;
  transition: opacity 0.2s ease;
}

.lightbox-close:hover,
.lightbox-nav:hover {
  opacity: 1;
}

.lightbox-close {
  top: 1.6rem;
  right: 1.8rem;
  font-size: 2rem;
  line-height: 1;
}

.lightbox-nav {
  top: 50%;
  transform: translateY(-50%);
  font-size: 2.6rem;
  padding: 0.5rem 0.8rem;
}

.lightbox-prev {
  left: 0.6rem;
}

.lightbox-next {
  right: 0.6rem;
}

@media (max-width: 720px) {
  .art-grid {
    grid-template-columns: 1fr;
  }

  .art-site {
    padding: 1.8rem 0 3rem;
  }

  .lightbox-nav {
    font-size: 2rem;
  }
}