:root {
  /* Typography System */
  --font-heading: 'Fraunces', 'Lora', Georgia, serif;
  --font-body: 'Inter', 'DM Sans', system-ui, sans-serif;

  /* Artistic Color Palette Tokens */
  --sunflower-gold: #F6B73C;
  --warm-amber: #D9902F;
  --soft-petal: #FFE7A8;
  --gallery-cream: #FFF8E8;
  --warm-linen: #F7EEDC;
  --olive-leaf: #6F7D45;
  --soft-sage: #A8B58A;
  --sunflower-stem: #3F4A2F;
  --clay-brown: #9A6240;
  --brown-ink: #2F261F;
  --muted-taupe: #7A6A5B;
  --paper-white: #FFFCF5;
  --warm-border: #E8D8BE;
}

/* Global Foundations */
body {
  background: var(--gallery-cream);
  color: var(--brown-ink);
  font-family: var(--font-body);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

/* Header & Navigation */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 48px;
  border-bottom: 1px solid var(--warm-border);
  background: rgba(255, 252, 245, 0.8);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--brown-ink);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--muted-taupe);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 200ms ease;
}

.nav-links a:hover, .nav-links a:focus {
  color: var(--brown-ink);
  outline: none;
}

.btn-gallery {
  background: transparent;
  border: 1px solid var(--warm-border);
  color: var(--brown-ink);
  font-family: var(--font-body);
  padding: 10px 20px;
  border-radius: 44px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  min-height: 44px;
  transition: all 200ms ease;
}

.btn-gallery:hover, .btn-gallery:focus {
  background: var(--paper-white);
  border-color: var(--clay-brown);
  outline: none;
}

/* Hero Context */
.hero {
  max-width: 900px;
  margin: 0 auto;
  padding: 72px 24px 48px;
  text-align: center;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 300;
  line-height: 1.1;
  color: var(--brown-ink);
  margin: 0 0 16px;
}

.hero p {
  color: var(--muted-taupe);
  font-size: 1.2rem;
  font-family: var(--font-heading);
  font-style: italic;
  margin: 0 0 24px;
}

.archive-count {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
  color: var(--olive-leaf);
}

/* The Main Display Shell */
.gallery-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px 80px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr));
  gap: 32px;
}

/* Fine-Art Card System */
.sunflower-card {
  background: var(--paper-white);
  border: 1px solid var(--warm-border);
  border-radius: 24px;
  box-shadow: 0 8px 24px rgba(47, 38, 31, 0.08);
  overflow: hidden;
  padding: 12px;
  cursor: pointer;
  transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.sunflower-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(47, 38, 31, 0.14);
}

.sunflower-card img {
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 20px;
  display: block;
}

.sunflower-card__body {
  padding: 16px 12px 8px;
}

.sunflower-card__title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--brown-ink);
  margin: 0 0 4px;
}

.sunflower-card__date {
  font-size: 0.9rem;
  color: var(--muted-taupe);
  margin: 0;
}

/* Gentle Loading Skeleton Blocks */
.skeleton-card {
  background: var(--paper-white);
  border: 1px solid var(--warm-border);
  border-radius: 24px;
  padding: 12px;
}

.skeleton-image {
  width: 100%;
  aspect-ratio: 4 / 5;
  background: var(--warm-linen);
  border-radius: 20px;
  animation: pulse-shimmer 1.5s infinite ease-in-out;
}

.skeleton-text {
  height: 18px;
  background: var(--warm-linen);
  margin: 16px 12px 8px;
  border-radius: 4px;
  width: 60%;
  animation: pulse-shimmer 1.5s infinite ease-in-out;
}

@keyframes pulse-shimmer {
  0% { opacity: 0.6; }
  50% { opacity: 1; }
  100% { opacity: 0.6; }
}

/* Informative State Blocks */
.state-message {
  grid-column: 1 / -1;
  text-align: center;
  padding: 64px 24px;
}

.state-message h2 {
  font-family: var(--font-heading);
  font-weight: 400;
  color: var(--brown-ink);
  margin: 0 0 8px;
}

.state-message p {
  color: var(--muted-taupe);
  margin: 0;
}

/* Lightbox System Overlay */
.art-lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(47, 38, 31, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  z-index: 1000;
  transition: opacity 300ms ease;
  padding: 24px;
  box-sizing: border-box;
}

.art-lightbox.open {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-content {
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 70vh;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
  text-align: center;
  margin-top: 20px;
  color: var(--gallery-cream);
}

#lightboxTitle {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 400;
  margin: 0 0 4px;
  color: #FFFFFF;
}

#lightboxDate {
  font-size: 1rem;
  color: var(--soft-petal);
  margin: 0;
}

/* Fluid Responsive Grid Steps */
@media (min-width: 640px) {
  .gallery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 900px) {
  .gallery-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 1100px) {
  .gallery-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .site-header { padding: 20px 24px; }
  .gallery-shell { padding: 0 24px 64px; }
}