:root {
  /* Colors — near-monochrome, the art provides all color */
  --color-background: #ffffff;
  --color-background-warm: #fafaf8;
  --color-text: #1a1a18;
  --color-text-secondary: #6b6b67;
  --color-text-tertiary: #9e9e99;
  --color-rule: #e5e5e0;

  /* Typography */
  --font-serif: 'Cormorant Garamond', 'Georgia', serif;
  --font-sans: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --type-display: clamp(2.5rem, 5vw, 4rem);
  --type-heading-1: clamp(1.75rem, 3vw, 2.75rem);
  --type-heading-2: clamp(1.25rem, 2vw, 1.75rem);
  --type-body: 1rem;
  --type-small: 0.8125rem;
  --type-caption: 0.6875rem;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-s: 1rem;
  --space-m: 2rem;
  --space-l: 4rem;
  --space-xl: 8rem;
  --content-width: 960px;
  --side-padding: clamp(1.5rem, 5vw, 4rem);
}

/* Base */

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.7;
  margin: 0;
  padding: 0;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  margin: 0;
}

/* Page load animation */

main {
  animation: fadeIn 600ms ease 100ms both;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ————— Header ————— */

header {
  padding: 1.5rem var(--side-padding);
}

.header-content {
  max-width: var(--content-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.site-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-text);
  text-decoration: none;
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-menu a {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-secondary);
  text-decoration: none;
  position: relative;
  padding-bottom: 2px;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--color-text);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 300ms ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  transform: scaleX(1);
}

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

/* ————— Footer ————— */

footer {
  border-top: 1px solid var(--color-rule);
  padding: var(--space-l) var(--side-padding) var(--space-m);
  text-align: center;
  max-width: var(--content-width);
  margin: var(--space-xl) auto 0;
}

footer p {
  font-size: var(--type-caption);
  color: var(--color-text-tertiary);
  margin: 0;
  line-height: 2;
}

footer a {
  color: var(--color-text-tertiary);
  text-decoration: none;
  transition: color 300ms ease;
}

footer a:hover {
  color: var(--color-text);
}

/* ————— Home Page ————— */

/* Opening statement */
.opening {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 15vh var(--side-padding) 12vh;
  text-align: center;
}

.opening h1 {
  font-family: var(--font-serif);
  font-size: var(--type-display);
  font-weight: 300;
  font-style: italic;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: var(--space-m);
}

.opening .subtitle {
  font-family: var(--font-sans);
  font-size: var(--type-small);
  color: var(--color-text-tertiary);
  letter-spacing: 0.05em;
}

/* Hero artwork */
.hero-artwork {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--side-padding);
}

.hero-artwork img {
  width: 100%;
  height: auto;
}

.artwork-caption {
  margin-top: var(--space-s);
  text-align: center;
}

.artwork-caption h3 {
  font-family: var(--font-serif);
  font-size: var(--type-heading-2);
  font-weight: 400;
  margin-bottom: 0.25rem;
}

.artwork-caption .medium {
  font-size: var(--type-small);
  color: var(--color-text-secondary);
}

/* Two-up pair */
.two-up {
  max-width: var(--content-width);
  margin: var(--space-xl) auto 0;
  padding: 0 var(--side-padding);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.two-up a {
  text-decoration: none;
  color: inherit;
}

.two-up img {
  width: 100%;
  height: auto;
  transition: opacity 400ms ease;
}

.two-up a:hover img {
  opacity: 0.92;
}

/* Bio teaser */
.bio-teaser {
  max-width: 640px;
  margin: var(--space-xl) auto 0;
  padding: 0 var(--side-padding);
  text-align: center;
}

.bio-teaser p {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-style: italic;
  font-weight: 300;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-m);
}

.bio-teaser a {
  font-family: var(--font-sans);
  font-size: var(--type-small);
  color: var(--color-text-secondary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 300ms ease;
}

.bio-teaser a:hover {
  color: var(--color-text);
}

/* ————— Collection Page ————— */

.collection-header {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-l) var(--side-padding) 0;
}

.collection-header h1 {
  font-family: var(--font-serif);
  font-size: var(--type-heading-1);
  font-weight: 400;
  margin-bottom: var(--space-s);
}

.collection-header::after {
  content: '';
  display: block;
  width: 100%;
  height: 1px;
  background-color: var(--color-rule);
}

/* Filter */
.filter-container {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-m) var(--side-padding);
}

.filter-container button {
  font-family: var(--font-sans);
  font-size: var(--type-small);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-tertiary);
  padding: 0;
  transition: color 300ms ease;
}

.filter-container button:hover {
  color: var(--color-text);
}

.filter-container button.active {
  color: var(--color-text);
}

.filter-separator {
  color: var(--color-rule);
  margin: 0 0.75rem;
  font-size: var(--type-small);
}

/* Collection grid */
.collection {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--side-padding) var(--space-l);
}

.artwork-grid {
  columns: 2;
  column-gap: 3rem;
}

.artwork-card {
  display: inline-block;
  width: 100%;
  margin-bottom: var(--space-l);
  text-decoration: none;
  color: inherit;
  break-inside: avoid;
}

.artwork-card img {
  width: 100%;
  height: auto;
  transition: opacity 400ms ease;
}

.artwork-card:hover img {
  opacity: 0.92;
}

.artwork-card .artwork-info {
  padding: var(--space-s) 0 0;
}

.artwork-card .artwork-info h3 {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 400;
  margin-bottom: 0.25rem;
}

.artwork-card .artwork-info .medium {
  font-size: var(--type-small);
  color: var(--color-text-secondary);
}

.artwork-card .artwork-info .year {
  font-size: var(--type-caption);
  color: var(--color-text-tertiary);
}

.artwork-card .artwork-info .price {
  font-size: var(--type-body);
  color: var(--color-text);
  margin-top: 0.5rem;
}

/* ————— About Page ————— */

.about-container {
  max-width: var(--content-width);
  margin: var(--space-l) auto;
  padding: 0 var(--side-padding);
}

.artist-section {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: var(--space-l);
  align-items: start;
}

.artist-image img {
  width: 100%;
  height: auto;
}

.artist-image .caption {
  font-size: var(--type-caption);
  color: var(--color-text-tertiary);
  margin-top: var(--space-xs);
}

.artist-bio-content {
  font-size: var(--type-body);
  line-height: 1.8;
  color: var(--color-text);
}

.artist-bio-content p {
  margin: 0 0 var(--space-m);
}

.artist-bio-content p:last-child {
  margin-bottom: 0;
}

.contact-quiet {
  margin-top: var(--space-l);
  padding-top: var(--space-m);
  border-top: 1px solid var(--color-rule);
  font-size: var(--type-small);
  color: var(--color-text-tertiary);
  line-height: 2;
}

.contact-quiet a {
  color: var(--color-text-tertiary);
  text-decoration: none;
  transition: color 300ms ease;
}

.contact-quiet a:hover {
  color: var(--color-text);
}

/* ————— Artwork Detail Page ————— */

.artwork-page {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-m) var(--side-padding) var(--space-l);
}

.back-link {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--type-caption);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-tertiary);
  text-decoration: none;
  margin-bottom: var(--space-m);
  transition: color 300ms ease;
}

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

.artwork-page .artwork-image {
  max-width: 100%;
  margin: 0 auto;
}

.artwork-page .artwork-image img {
  width: 100%;
  height: auto;
}

.artwork-details {
  max-width: 600px;
  margin: var(--space-l) auto 0;
}

.artwork-details h1 {
  font-family: var(--font-serif);
  font-size: var(--type-heading-1);
  font-weight: 400;
  margin-bottom: var(--space-s);
}

.artwork-details .detail-rule {
  width: 100%;
  height: 1px;
  background-color: var(--color-rule);
  margin-bottom: var(--space-m);
}

.artwork-info-detail {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 2rem;
  margin-bottom: var(--space-m);
}

.artwork-info-detail dt {
  font-size: var(--type-small);
  color: var(--color-text-tertiary);
  margin: 0;
}

.artwork-info-detail dd {
  font-size: var(--type-body);
  color: var(--color-text);
  margin: 0;
}

.artwork-description {
  font-size: var(--type-body);
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-m);
}

.inquire-link {
  font-family: var(--font-sans);
  font-size: var(--type-small);
  color: var(--color-text-secondary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 300ms ease;
}

.inquire-link:hover {
  color: var(--color-text);
}

/* ————— Responsive ————— */

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    align-items: center;
    gap: var(--space-s);
  }

  .site-title {
    font-size: 1.1rem;
  }

  .nav-menu {
    gap: 1.5rem;
  }

  .nav-menu a {
    padding: 0.75rem 0;
  }

  .opening {
    padding: 10vh var(--side-padding) 8vh;
  }

  .two-up {
    grid-template-columns: 1fr;
    gap: var(--space-l);
  }

  .artwork-grid {
    columns: 1;
  }

  .artist-section {
    grid-template-columns: 1fr;
    gap: var(--space-m);
  }

  .artist-image {
    max-width: 320px;
    margin: 0 auto;
  }

  footer {
    margin-top: var(--space-l);
  }
}

@media (max-width: 480px) {
  .artwork-info-detail {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .artwork-info-detail dt {
    margin-top: 0.75rem;
  }

  .artwork-info-detail dt:first-child {
    margin-top: 0;
  }
}