:root {
  --ink: #2b2420;
  --paper: #faf7f2;
  --card: #ffffff;
  --accent: #993300;
  --accent-soft: #b85c2e;
  --mat: #5e503e;
  --border: #3e2914;
  --muted: #6b6157;
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Arial, Helvetica, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.5;
}

a {
  color: inherit;
}

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

.site-header {
  background: var(--ink);
  color: #fff;
  padding: 1.25rem 1rem 1rem;
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.site-title {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.5rem;
  margin: 0;
}

.site-title a {
  text-decoration: none;
  color: #fff;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid #fff;
  color: #fff;
  padding: 0.4rem 0.7rem;
  border-radius: 4px;
  font-size: 1rem;
}

nav.main-nav {
  max-width: var(--max-width);
  margin: 0.75rem auto 0;
  padding: 0 1rem;
}

nav.main-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.6rem;
  margin: 0;
  padding: 0;
}

nav.main-nav a {
  display: inline-block;
  text-decoration: none;
  color: var(--ink);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.3rem 0.5rem;
  border-radius: 3px;
}

nav.main-nav a:hover,
nav.main-nav a.active {
  background: var(--accent);
  color: #fff;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

.page-title {
  font-family: Georgia, "Times New Roman", serif;
  color: var(--accent);
  font-size: 1.6rem;
  margin: 0 0 1.25rem;
}

.breadcrumb {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.breadcrumb a {
  color: var(--accent);
  text-decoration: none;
}

/* Home: category grid */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 1rem;
}

.category-card {
  background: var(--card);
  border: 1px solid #e4dcd0;
  border-radius: 6px;
  overflow: hidden;
  text-decoration: none;
  color: var(--ink);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.category-card:hover {
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.category-card__thumb {
  aspect-ratio: 4 / 3;
  background: var(--mat);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.category-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.category-card__label {
  padding: 0.6rem 0.7rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.category-card__count {
  font-weight: 400;
  color: var(--muted);
  font-size: 0.8rem;
}

/* Category page: artwork grid */
.artwork-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.25rem;
}

.artwork-card {
  text-decoration: none;
  color: var(--ink);
}

.artwork-card__frame {
  background: var(--mat);
  border: 1px solid var(--border);
  padding: 6px;
  border-radius: 3px;
}

.artwork-card__frame img {
  width: 100%;
  aspect-ratio: 11 / 10;
  object-fit: cover;
  background: #fff;
}

.artwork-card__title {
  margin-top: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.artwork-card__meta {
  font-size: 0.8rem;
  color: var(--muted);
}

/* Artwork detail page */
.artwork-detail {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

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

.artwork-detail__image {
  background: var(--mat);
  border: 1px solid var(--border);
  padding: 8px;
  border-radius: 3px;
}

.artwork-detail__title {
  font-family: Georgia, "Times New Roman", serif;
  color: var(--accent);
  font-size: 1.4rem;
  margin: 0 0 0.25rem;
}

.artwork-detail__title-alt {
  font-style: italic;
  color: var(--accent-soft);
  font-size: 0.95rem;
  margin: 0 0 1rem;
}

.artwork-detail__facts {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.details-heading {
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.details-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.details-row button {
  border: 1px solid var(--border);
  padding: 3px;
  background: #fff;
  border-radius: 3px;
  cursor: pointer;
  width: 90px;
  height: 80px;
}

.details-row img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.artwork-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 1.5rem;
  font-size: 0.9rem;
}

.artwork-nav a {
  text-decoration: none;
  color: var(--accent);
}

.artwork-nav a:hover {
  text-decoration: underline;
}

.back-link {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.back-link:hover {
  color: var(--accent);
}

/* Bio page */
.bio-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 2rem;
}

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

.bio-layout figure {
  margin: 0 0 1rem;
}

.bio-text p {
  margin: 0 0 1rem;
}

.exhibitions {
  margin-top: 1.5rem;
  border-top: 1px solid #e4dcd0;
  padding-top: 1rem;
}

.exhibitions h2 {
  font-size: 1.1rem;
  color: var(--accent);
}

.exhibition {
  margin-bottom: 0.9rem;
}

.exhibition__year {
  font-weight: 700;
  color: var(--accent-soft);
  margin-right: 0.4rem;
}

/* Contact page */
.contact-block {
  font-size: 1rem;
}

.contact-block a.email {
  font-weight: 700;
  color: var(--accent);
  font-size: 1.1rem;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 2rem;
}

.lightbox.is-open {
  display: flex;
}

.lightbox img {
  max-width: 100%;
  max-height: 90vh;
  border: 4px solid #fff;
}

.lightbox__close {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  color: #fff;
  font-size: 2rem;
  background: none;
  border: none;
  cursor: pointer;
  line-height: 1;
}

.site-footer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
  padding: 2rem 1rem;
}

@media (max-width: 640px) {
  .nav-toggle {
    display: inline-block;
  }
  nav.main-nav {
    display: none;
  }
  nav.main-nav.is-open {
    display: block;
  }
}