:root {
  --ink: #1b1b1b;
  --muted: #666;
  --line: #e3e3e0;
  --bg: #faf9f6;
  --accent: #8a1a1a;
  --max: 1120px;
  --font-serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body.lightbox-open { overflow: hidden; }

a {
  color: inherit;
  text-decoration: none;
}
a:hover { color: var(--accent); }

/* Header / nav */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.nav-brand {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.nav-links {
  list-style: none;
  display: flex;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
}
.nav-links a {
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.lang-switcher {
  list-style: none;
  display: flex;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
}
.lang-switcher button {
  background: transparent;
  border: 0;
  padding: 0;
  font: inherit;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  cursor: pointer;
}
.lang-switcher button:hover { color: var(--ink); }
.lang-switcher button[aria-current="true"] {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.lang-switcher li + li::before {
  content: "·";
  color: var(--line);
  margin-right: 0.5rem;
}

/* Main container */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}
.page-title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 0 0 2.5rem;
  letter-spacing: 0.01em;
}

/* Exhibitions list (home) */
.exhibitions {
  list-style: none;
  margin: 0;
  padding: 0;
}
.exhibitions li {
  border-top: 1px solid var(--line);
}
.exhibitions li:last-child {
  border-bottom: 1px solid var(--line);
}
.exhibition-link {
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: 2rem;
  align-items: baseline;
  padding: 1.75rem 0;
  transition: color 0.15s;
}
.exhibition-link:hover .exhibition-title {
  color: var(--accent);
}
.exhibition-year {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--muted);
}
.exhibition-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 500;
}
.exhibition-meta {
  color: var(--muted);
  font-size: 0.9rem;
  text-align: right;
}

/* Exhibition detail */
.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.exhibition-detail {
  margin-bottom: 3rem;
}
.exhibition-hero {
  margin: 0 0 2rem;
}
.exhibition-hero img {
  display: block;
  width: 100%;
  max-height: 80vh;
  object-fit: contain;
  background: #ededea;
}
.exhibition-detail .title,
.exhibition-detail .meta,
.exhibition-detail .description {
  max-width: 65ch;
}
.exhibition-detail .title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin: 0 0 0.5rem;
}
.exhibition-detail .meta {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0 0 1.25rem;
}
.exhibition-detail .description {
  margin: 0;
}

/* Painting grid */
.paintings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 2rem;
}
.painting {
  cursor: zoom-in;
  margin: 0;
}
.painting img {
  display: block;
  width: 100%;
  height: auto;
  background: #ededea;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  transition: opacity 0.2s;
}
.painting:hover img { opacity: 0.85; }
.painting figcaption {
  margin-top: 0.6rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.painting figcaption .title {
  color: var(--ink);
  font-style: italic;
}

/* About */
.about-body {
  max-width: 60ch;
  font-size: 1.05rem;
}
.about-body p { margin: 0 0 1rem; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 4rem;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.footer-contact { margin: 0; }
.footer-contact .sep { margin: 0 0.5rem; opacity: 0.5; }
.footer-copy { margin: 0; }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(20, 20, 20, 0.92);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  z-index: 100;
  cursor: zoom-out;
}
.lightbox img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}
.lightbox .caption {
  margin-top: 1rem;
  color: #ddd;
  font-size: 0.9rem;
  text-align: center;
}
.lightbox .close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  background: transparent;
  border: 0;
  color: #ddd;
  font-size: 1.75rem;
  cursor: pointer;
  line-height: 1;
}
.lightbox .prev,
.lightbox .next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: 0;
  color: #ddd;
  font-size: 3rem;
  line-height: 1;
  padding: 0.5rem 1rem;
  cursor: pointer;
}
.lightbox .prev { left: 1rem; }
.lightbox .next { right: 1rem; }
.lightbox .prev:hover:not(:disabled),
.lightbox .next:hover:not(:disabled) { color: #fff; }
.lightbox .prev:disabled,
.lightbox .next:disabled {
  opacity: 0.2;
  cursor: default;
}
@media (max-width: 640px) {
  .lightbox .prev,
  .lightbox .next { font-size: 2rem; padding: 0.5rem; }
  .lightbox .prev { left: 0.25rem; }
  .lightbox .next { right: 0.25rem; }
}

/* Responsive */
@media (max-width: 640px) {
  .nav { padding: 1rem; }
  .nav-brand { font-size: 1.35rem; }
  .nav-links { gap: 1.25rem; }
  .container { padding: 2rem 1rem 3rem; }
  .exhibition-link {
    grid-template-columns: 70px 1fr;
    grid-template-rows: auto auto;
    gap: 0.25rem 1rem;
    padding: 1.25rem 0;
  }
  .exhibition-year { grid-row: 1 / span 2; }
  .exhibition-meta {
    grid-column: 2;
    text-align: left;
  }
  .paintings-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1.25rem; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}