:root {
  --bg: #0a0a0a;
  --bg-soft: #161616;
  --text: #f5f5f5;
  --muted: #888;
  --accent: #e63946;
  --accent-glow: rgba(230, 57, 70, 0.45);
  --silver-1: #f7f7f7;
  --silver-2: #c8c8c8;
  --silver-3: #8a8a8a;
  --silver-4: #ededed;
  --silver-5: #b5b5b5;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.no-scroll { overflow: hidden; }

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

::selection { background: var(--accent); color: #fff; }

/* ---------- Header ---------- */
.site-header {
  position: relative;
  text-align: center;
  padding: 3.5rem 1.5rem 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  overflow: hidden;
}

.site-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60vw;
  max-width: 720px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent) 50%, transparent);
  opacity: 0.5;
}

.brand { display: inline-block; line-height: 0; }

.brand-logo {
  width: clamp(190px, 26vw, 290px);
  height: auto;
  display: block;
  margin: 0 auto 1.25rem;
  filter: drop-shadow(0 0 28px rgba(230, 57, 70, 0.18));
  transition: filter 0.4s ease, transform 0.4s ease;
}

.brand:hover .brand-logo {
  filter: drop-shadow(0 0 36px rgba(230, 57, 70, 0.4));
  transform: scale(1.02);
}

.title {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(2rem, 5.5vw, 3.6rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.65rem;
  line-height: 1.05;
  text-transform: uppercase;
  background: linear-gradient(
    115deg,
    var(--silver-1) 0%,
    var(--silver-2) 18%,
    var(--silver-4) 35%,
    var(--silver-3) 52%,
    var(--silver-1) 68%,
    var(--silver-5) 85%,
    var(--silver-4) 100%
  );
  background-size: 280% 280%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: chromeFlow 10s ease-in-out infinite;
}

@keyframes chromeFlow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.subtitle {
  font-family: var(--sans);
  font-weight: 300;
  font-size: clamp(0.85rem, 1.4vw, 1.05rem);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.subtitle::before,
.subtitle::after {
  content: '—';
  margin: 0 0.6rem;
  color: var(--accent);
}

.breadcrumb {
  display: flex;
  justify-content: center;
  margin: 0 0 1.25rem;
}

.breadcrumb[hidden] { display: none !important; }

.breadcrumb-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.4rem 0.6rem;
  border: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.breadcrumb-link:hover,
.breadcrumb-link:focus-visible {
  color: var(--accent);
  border-color: rgba(230, 57, 70, 0.4);
  outline: none;
}

.header-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.6rem;
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text);
  background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 50%, #1a1a1a 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn-download::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(230, 57, 70, 0.25) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.btn-download:hover {
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 0 24px rgba(230, 57, 70, 0.25);
  transform: translateY(-1px);
}

.btn-download:hover::before { transform: translateX(100%); }

.btn-download:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-download .size {
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.15em;
  margin-left: 0.4rem;
}

@media (max-width: 640px) {
  .site-header { padding: 2.25rem 1rem 2rem; }
  .subtitle::before, .subtitle::after { margin: 0 0.4rem; }
}

/* ---------- Common ---------- */
main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

.view[hidden] { display: none !important; }

.gallery-meta {
  text-align: center;
  padding: 0 1rem 2rem;
  font-size: 0.72rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}

.gallery-meta strong {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.2em;
  margin-right: 0.3em;
}

.gallery-status {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  margin: 2rem 0;
}

.gallery-status.hidden { display: none; }

/* ---------- Sections grid (menu) ---------- */
.sections-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 1rem;
}

@media (min-width: 1024px) {
  .sections-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 640px) {
  .sections-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.6rem;
  }
}

.section-card {
  position: relative;
  display: block;
  aspect-ratio: 4 / 5;
  background: var(--bg-soft);
  overflow: hidden;
  text-decoration: none;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: border-color 0.4s ease, transform 0.4s ease, box-shadow 0.4s ease;
  cursor: pointer;
}

.section-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.section-card .cover {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.5s ease, transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1), filter 0.5s ease;
  filter: brightness(0.55) saturate(0.9);
}

.section-card .cover.loaded { opacity: 1; }

.section-card .cover-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 10, 10, 0.1) 0%, rgba(10, 10, 10, 0.85) 100%),
    linear-gradient(135deg, transparent 50%, rgba(230, 57, 70, 0.15) 100%);
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.section-card .label {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  z-index: 2;
}

.section-card .name {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(0.85rem, 1.35vw, 1.15rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.15;
  margin: 0 0 0.35rem;
  transition: transform 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
  word-break: break-word;
}

.section-card .count {
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}

.section-card .count strong {
  color: var(--accent);
  font-weight: 600;
  margin-right: 0.3em;
}

.section-card .corner-mark { display: none; }

@media (hover: hover) {
  .section-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5), 0 0 24px rgba(230, 57, 70, 0.15);
  }
  .section-card:hover .cover {
    transform: scale(1.04);
    filter: brightness(0.7) saturate(1.05);
  }
  .section-card:hover .name { transform: translateY(-2px); }
}

/* ---------- Gallery (section view) ---------- */
.gallery {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.gallery-row {
  display: flex;
  gap: 1.25rem;
  width: 100%;
}

.gallery-row.solo { justify-content: center; }
.gallery-row.solo .gallery-item {
  flex: 0 1 60%;
  max-width: 60%;
}

@media (min-width: 1024px) {
  main { padding: 2.5rem 2rem 4rem; }
  .gallery, .gallery-row { gap: 1.5rem; }
  .gallery-row.solo .gallery-item {
    flex: 0 1 50%;
    max-width: 50%;
  }
}

@media (max-width: 640px) {
  main { padding: 1.5rem 0.75rem 2.5rem; }
  .gallery, .gallery-row { gap: 0.5rem; }
  .gallery-row.solo .gallery-item {
    flex: 0 1 70%;
    max-width: 70%;
  }
}

.gallery-item {
  position: relative;
  flex: 1;
  background: var(--bg-soft);
  overflow: hidden;
  cursor: pointer;
  border: 0;
  padding: 0;
  margin: 0;
  display: block;
  outline: none;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.gallery-item.reveal { opacity: 1; transform: translateY(0); }

.gallery-item::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid transparent;
  pointer-events: none;
  transition: border-color 0.35s ease, box-shadow 0.35s ease;
  z-index: 2;
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 55%, rgba(230, 57, 70, 0.12) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
  z-index: 1;
}

.gallery-item .item-index {
  position: absolute;
  top: 0.85rem;
  right: 0.95rem;
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--text);
  background: rgba(10, 10, 10, 0.7);
  padding: 0.2rem 0.55rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.35s ease, transform 0.35s ease, border-color 0.35s ease;
  pointer-events: none;
  z-index: 3;
  backdrop-filter: blur(6px);
}

.gallery-item .item-index span { color: var(--accent); margin-right: 0.3em; }

.gallery-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.gallery-item img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1), filter 0.5s ease;
  opacity: 0;
}

.gallery-item img.loaded { opacity: 1; }

@media (hover: hover) {
  .gallery-item:hover img {
    transform: scale(1.04);
    filter: contrast(1.05) saturate(1.05);
  }
  .gallery-item:hover::after { opacity: 1; }
  .gallery-item:hover::before {
    border-color: var(--accent);
    box-shadow: inset 0 0 0 1px rgba(230, 57, 70, 0.4),
                0 0 24px rgba(230, 57, 70, 0.18);
  }
  .gallery-item:hover .item-index {
    opacity: 1;
    transform: translateY(0);
    border-color: rgba(230, 57, 70, 0.5);
  }
}

@media (max-width: 640px) {
  .gallery-item .item-index {
    font-size: 0.6rem;
    padding: 0.15rem 0.4rem;
    top: 0.5rem;
    right: 0.5rem;
    opacity: 1;
    transform: none;
  }
}

/* ---------- Footer ---------- */
.site-footer {
  text-align: center;
  padding: 4rem 1.5rem 3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--muted);
  font-size: 0.85rem;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 2px;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

.site-footer p { margin: 0.5rem 0; }
.site-footer .copyright {
  color: var(--text);
  font-weight: 500;
  letter-spacing: 0.05em;
}
.site-footer .credit em { color: var(--text); font-style: italic; }

.site-footer a {
  color: var(--muted);
  border-bottom: 1px solid rgba(136, 136, 136, 0.4);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.site-footer .rights-notice {
  max-width: 540px;
  margin: 1rem auto 0;
  font-size: 0.75rem;
  line-height: 1.6;
  letter-spacing: 0.02em;
}

.site-footer .share-mention {
  max-width: 600px;
  margin: 0 auto 1.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  line-height: 1.7;
  color: var(--text);
}

.site-footer .share-mention strong {
  color: var(--accent);
  font-weight: 500;
}

.site-footer .social-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.2rem;
  margin: 0 auto 2rem;
}

.site-footer .social-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 2px;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  color: var(--muted);
  transition: color 0.25s ease, border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.site-footer .social-links a:hover,
.site-footer .social-links a:focus-visible {
  color: var(--text);
  border-color: var(--accent);
  box-shadow: 0 0 18px rgba(230, 57, 70, 0.18);
  transform: translateY(-1px);
  outline: none;
}

.site-footer .social-links svg {
  flex-shrink: 0;
  color: var(--accent);
}

@media (max-width: 640px) {
  .site-footer .social-links {
    gap: 0.6rem;
  }
  .site-footer .social-links a {
    padding: 0.5rem 0.7rem;
    font-size: 0.65rem;
  }
  .site-footer .social-links a span {
    display: none;
  }
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.96);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  user-select: none;
}

.lightbox.open { display: flex; animation: lbFadeIn 0.3s ease-out; }

@keyframes lbFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.lightbox-watermark {
  position: absolute;
  top: 50%;
  left: 1.5rem;
  transform: translateY(-50%);
  width: clamp(70px, 10vw, 130px);
  height: auto;
  opacity: 0.28;
  pointer-events: none;
}

.lightbox-figure {
  margin: 0;
  max-width: 90vw;
  max-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-image {
  max-width: 90vw;
  max-height: 80vh;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  transition: opacity 0.25s ease;
}

.lightbox-image.swap { opacity: 0; }

.lightbox button {
  background: transparent;
  border: 0;
  color: var(--text);
  cursor: pointer;
  padding: 0.5rem;
  opacity: 0.75;
  transition: opacity 0.2s ease, color 0.2s ease, transform 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.lightbox button:hover,
.lightbox button:focus-visible {
  opacity: 1;
  color: var(--accent);
  outline: none;
}

.lightbox button:focus-visible {
  box-shadow: 0 0 0 2px var(--accent);
  border-radius: 4px;
}

.lightbox-close { position: absolute; top: 1rem; right: 1.25rem; }
.lightbox-close:hover { transform: rotate(90deg); }

.lightbox-prev, .lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  padding: 1rem;
}

.lightbox-prev:hover { transform: translateY(-50%) translateX(-3px); }
.lightbox-next:hover { transform: translateY(-50%) translateX(3px); }
.lightbox-prev { left: 0.5rem; }
.lightbox-next { right: 0.5rem; }

.lightbox-toolbar {
  position: absolute;
  bottom: 4rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.75rem;
}

.lightbox-action {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.1rem !important;
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.04) !important;
  border: 1px solid rgba(255, 255, 255, 0.18) !important;
  border-radius: 2px !important;
  opacity: 0.9 !important;
}

.lightbox-action:hover,
.lightbox-action:focus-visible {
  background: rgba(230, 57, 70, 0.14) !important;
  border-color: var(--accent) !important;
  color: var(--text) !important;
  opacity: 1 !important;
  transform: translateY(-1px);
}

.lightbox-counter {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  font-family: var(--sans);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--muted);
  text-transform: uppercase;
}

.lightbox-counter strong { color: var(--accent); font-weight: 500; }

.lightbox-toast {
  position: absolute;
  top: 1.5rem;
  left: 50%;
  transform: translate(-50%, -200%);
  margin: 0;
  padding: 0.6rem 1.2rem;
  background: rgba(15, 15, 15, 0.95);
  border: 1px solid rgba(230, 57, 70, 0.4);
  color: var(--text);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 2px;
  opacity: 0;
  transition: transform 0.35s ease, opacity 0.35s ease;
  pointer-events: none;
}

.lightbox-toast.visible { transform: translate(-50%, 0); opacity: 1; }

@media (max-width: 640px) {
  .lightbox-prev, .lightbox-next { padding: 0.5rem; }
  .lightbox-close { top: 0.5rem; right: 0.75rem; }
  .lightbox-watermark { left: 0.5rem; width: 56px; opacity: 0.2; }
  .lightbox-toolbar { bottom: 3.5rem; gap: 0.5rem; }
  .lightbox-action { padding: 0.55rem 0.85rem !important; font-size: 0.65rem; }
  .lightbox-action span { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .gallery-item { opacity: 1; transform: none; }
}