:root {
  --surface: #fbfbe2;
  --surface-container-low: #f5f5dc;
  --surface-container-lowest: #ffffff;
  --primary: #344b00;
  --primary-container: #476500;
  --on-primary: #ffffff;
  --on-surface: #1b1d0e;
  --on-surface-variant: #474835;
  --secondary-container: #e6e397;
  --on-secondary-container: #676527;
  --tertiary: #735c00;
  --outline-variant: #c4c9b5;
  --surface-container-highest: #e4e4cc;
  --radius-lg: 2rem;
  --radius-xl: 3rem;
  --radius-full: 9999px;
  --font-display: 'Noto Serif', serif;
  --font-body: 'Newsreader', serif;
  --font-label: 'Manrope', sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--surface);
  color: var(--on-surface);
  font-family: var(--font-body);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 245, 220, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(196, 201, 181, 0.2);
  padding: 2rem 2rem 1.5rem;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
}

.display-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  color: var(--on-surface);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.display-subtitle {
  font-family: var(--font-body);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--on-surface-variant);
  margin-top: 0.5rem;
  letter-spacing: 0.01em;
}

.gallery-main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4 / 5;
  background: var(--surface-container-low);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.gallery-item:hover {
  transform: translateY(-4px);
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15);
  pointer-events: none;
  z-index: 2;
}

.gallery-blur {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(20px) saturate(1.2);
  transform: scale(1.1);
  z-index: 0;
  transition: opacity 0.4s ease;
}

.gallery-thumb {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.6s ease;
  z-index: 1;
}

.gallery-thumb.loaded {
  opacity: 1;
}

.gallery-thumb.loaded ~ .gallery-blur {
  opacity: 0;
}

.loader {
  display: flex;
  justify-content: center;
  padding: 3rem 0;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.loader.visible {
  opacity: 1;
}

.loader-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--outline-variant);
  border-top-color: var(--primary);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.sentinel {
  height: 1px;
  width: 100%;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(27, 29, 14, 0.92);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

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

.lightbox-close {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 1010;
  background: rgba(255, 255, 255, 0.12);
  border: none;
  color: var(--surface-container-lowest);
  font-size: 2rem;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.25s ease;
  font-family: var(--font-label);
  line-height: 1;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.22);
}

.lightbox-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1010;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--surface-container-lowest);
  font-size: 2rem;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.25s ease, border-color 0.25s ease;
  font-family: var(--font-label);
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.2);
}

.lightbox-prev {
  left: 1.25rem;
}

.lightbox-next {
  right: 1.25rem;
}

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

.lightbox-image {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.25);
  transition: opacity 0.3s ease;
}

.lightbox-download {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1010;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  border: none;
  color: var(--on-primary);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  box-shadow: 0 8px 32px rgba(52, 75, 0, 0.3);
}

.lightbox-download:hover {
  transform: scale(1.07);
  box-shadow: 0 12px 40px rgba(52, 75, 0, 0.4);
}

.lightbox-counter {
  position: fixed;
  bottom: 1.75rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1010;
  font-family: var(--font-label);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

@media (max-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 0.75rem;
  }

  .gallery-main {
    padding: 1rem;
  }

  .site-header {
    padding: 1.25rem 1rem 1rem;
  }

  .lightbox-nav {
    width: 40px;
    height: 40px;
    font-size: 1.5rem;
  }

  .lightbox-prev {
    left: 0.5rem;
  }

  .lightbox-next {
    right: 0.5rem;
  }

  .lightbox-close {
    top: 0.75rem;
    right: 0.75rem;
    width: 40px;
    height: 40px;
    font-size: 1.5rem;
  }

  .lightbox-download {
    width: 42px;
    height: 42px;
    bottom: 1rem;
    right: 1rem;
  }
}

@media (min-width: 1200px) {
  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .gallery-main {
    padding: 3rem 2.5rem;
  }
}