@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Playfair+Display:wght@400;500;600&display=swap');

/* ── Design Tokens ────────────────────────────────── */
:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #161616;
  --bg-card-hover: #1a1a1a;
  --bg-overlay: rgba(0, 0, 0, 0.92);

  --text-primary: #f0f0f0;
  --text-secondary: #999999;
  --text-muted: #666666;

  --border-subtle: #222222;
  --border-hover: #333333;

  --accent: #d4af37;
  --accent-dim: rgba(212, 175, 55, 0.15);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;

  --max-width: 1400px;
  --header-height: 64px;
}

/* ── Reset ────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
}

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

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

/* ── Header / Navigation ──────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0 24px;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 0;
  max-width: var(--max-width);
  margin: 0 auto;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.header__nav::-webkit-scrollbar {
  display: none;
}

.header__nav-link {
  padding: 18px 16px;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: color var(--transition-fast);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.header__nav-link:hover,
.header__nav-link.active {
  color: var(--text-primary);
  border-bottom-color: var(--text-primary);
}

/* ── Main Content ─────────────────────────────────── */
.main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 96px;
}

/* Homepage hero + About page use full bleed — override main padding */
.main:has(.hero),
.main:has(.about) {
  max-width: none;
  padding: 0;
}

/* ── Hero Split Layout (Homepage) ────────────────── */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: calc(100vh - 56px);
}

.hero__left {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px 48px;
  background: var(--bg-primary);
}

.hero__content {
  text-align: center;
  max-width: 400px;
}

.hero__title {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.hero__subtitle {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  text-transform: lowercase;
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 40px;
}

.hero__nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}

.hero__nav-link {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--text-secondary);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(255, 255, 255, 0.2);
  transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
  padding: 4px 0;
}

.hero__nav-link:hover {
  color: var(--text-primary);
  text-decoration-color: var(--text-primary);
}

.hero__right {
  position: relative;
  overflow: hidden;
}

.hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__image-placeholder {
  width: 100%;
  height: 100%;
  background: var(--bg-secondary);
}

/* ── Hero Carousel Crossfade ────────────────────── */
.hero__carousel-image {
  object-fit: cover;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
}

.hero__carousel-image--active {
  opacity: 1;
}

/* ── Section Labels ──────────────────────────────── */
.section-label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-top: 48px;
  margin-bottom: 20px;
}

.section-label:first-child {
  margin-top: 0;
}

/* ── Subpage Album Grid (2-column, edge-to-edge) ─── */
.subpage-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
}

.subpage-grid__item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3 / 2;
  cursor: pointer;
  display: block;
}

.subpage-grid__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow), filter var(--transition-slow);
}

.subpage-grid__item:hover img {
  transform: scale(1.03);
  filter: brightness(0.75);
}

.subpage-grid__item-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  background: linear-gradient(to top,
      rgba(0, 0, 0, 0.6) 0%,
      transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.subpage-grid__item:hover .subpage-grid__item-overlay {
  opacity: 1;
}

.subpage-grid__item-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 400;
  letter-spacing: 0.03em;
}

.subpage-grid__item-count {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 300;
  margin-top: 2px;
}

/* ── Album Grid (Homepage) ────────────────────────── */
.album-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 20px;
}

.album-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  aspect-ratio: 3 / 2;
  cursor: pointer;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: border-color var(--transition-normal), transform var(--transition-normal);
}

.album-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.album-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow), filter var(--transition-slow);
}

.album-card:hover .album-card__image {
  transform: scale(1.03);
  filter: brightness(0.7);
}

.album-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  background: linear-gradient(to top,
      rgba(0, 0, 0, 0.8) 0%,
      rgba(0, 0, 0, 0.3) 40%,
      transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.album-card:hover .album-card__overlay {
  opacity: 1;
}

.album-card__title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  margin-bottom: 4px;
}

.album-card__count {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 300;
}

/* ── Photo Grid (Album Detail) ────────────────────── */
.album-header {
  margin-bottom: 40px;
}

.album-header__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  transition: color var(--transition-fast);
}

.album-header__back:hover {
  color: var(--text-primary);
}

.album-header__back svg {
  width: 16px;
  height: 16px;
}

.album-header__title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.album-header__meta {
  margin-top: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 300;
}

.photo-grid {
  column-count: var(--grid-columns, 3);
  column-gap: var(--grid-gap, 12px);
}

/* Uniform layout: CSS Grid with fixed aspect ratio */
.photo-grid--uniform {
  display: grid;
  grid-template-columns: repeat(var(--grid-columns, 3), 1fr);
  gap: var(--grid-gap, 12px);
  column-count: unset;
}

.photo-grid__item {
  break-inside: avoid;
  margin-bottom: var(--grid-gap, 12px);
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  aspect-ratio: var(--grid-aspect-ratio, 1);
}

.photo-grid--uniform .photo-grid__item {
  margin-bottom: 0;
}

.photo-grid__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: filter var(--transition-normal), transform var(--transition-slow);
}

.photo-grid__item:hover img {
  filter: brightness(0.85);
  transform: scale(1.02);
}

/* EXIF hover overlay */
.photo-grid__item-exif {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px 10px 8px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 100%);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: 2;
}

.photo-grid__item:hover .photo-grid__item-exif {
  opacity: 1;
}

/* ── Lightbox ─────────────────────────────────────── */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--bg-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: lightbox-fade-in var(--transition-normal) ease forwards;
}

@keyframes lightbox-fade-in {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.lightbox-overlay.closing {
  animation: lightbox-fade-out var(--transition-fast) ease forwards;
}

@keyframes lightbox-fade-out {
  from {
    opacity: 1;
  }

  to {
    opacity: 0;
  }
}

.lightbox__image-container {
  position: relative;
  max-width: 95vw;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.lightbox__image {
  max-width: 95vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  user-select: none;
  -webkit-user-drag: none;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.lightbox__image--loaded {
  opacity: 1;
}

.lightbox__close {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 1001;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 8px;
  transition: color var(--transition-fast);
}

.lightbox__close:hover {
  color: var(--text-primary);
}

.lightbox__close svg {
  width: 28px;
  height: 28px;
}

.lightbox__nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1001;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.lightbox__nav:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}

.lightbox__nav--prev {
  left: 20px;
}

.lightbox__nav--next {
  right: 20px;
}

.lightbox__nav svg {
  width: 20px;
  height: 20px;
}

.lightbox__counter {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 300;
  letter-spacing: 0.1em;
}

/* ── EXIF Info Panel ──────────────────────────────── */
.lightbox__info-toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1001;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.8rem;
  font-family: var(--font-sans);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.lightbox__info-toggle:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}

.exif-panel {
  position: fixed;
  bottom: 60px;
  right: 24px;
  z-index: 1001;
  background: rgba(20, 20, 20, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  min-width: 240px;
  animation: exif-slide-up var(--transition-normal) ease forwards;
}

@keyframes exif-slide-up {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.exif-panel__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 6px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.exif-panel__row:last-child {
  border-bottom: none;
}

.exif-panel__label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.exif-panel__value {
  font-size: 0.85rem;
  color: var(--text-primary);
  font-weight: 400;
}

/* ── Loading States ───────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 0%, var(--bg-card-hover) 50%, var(--bg-card) 100%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes skeleton-shimmer {
  0% {
    background-position: 200% 0;
  }

  100% {
    background-position: -200% 0;
  }
}

/* ── Error / Empty States ─────────────────────────── */
.empty-state {
  text-align: center;
  padding: 96px 24px;
}

.empty-state__icon {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: 0.3;
}

.empty-state__text {
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 300;
}

/* ── Password Gate ────────────────────────────────── */
.password-gate {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--header-height));
  padding: 24px;
}

.password-gate__card {
  text-align: center;
  padding: 48px 40px;
  max-width: 400px;
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.password-gate__title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  margin-bottom: 8px;
}

.password-gate__subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 300;
  margin-bottom: 32px;
}

.password-gate__form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.password-gate__input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.password-gate__input:focus {
  border-color: var(--accent);
}

.password-gate__input::placeholder {
  color: var(--text-muted);
}

.password-gate__button {
  padding: 12px 24px;
  background: var(--accent);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.password-gate__button:hover {
  opacity: 0.9;
}

.password-gate__button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.password-gate__error {
  margin-top: 12px;
  font-size: 0.8rem;
  color: #e74c3c;
  font-weight: 400;
}

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 1024px) {
  .photo-grid {
    --grid-columns: 2;
  }

  .album-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

@media (max-width: 640px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero__right {
    order: -1;
    max-height: 40vh;
  }

  .hero__left {
    padding: 40px 24px;
  }

  .hero__title {
    font-size: 2rem;
  }

  .photo-grid {
    --grid-columns: 1;
  }

  .album-grid {
    grid-template-columns: 1fr;
  }

  .subpage-grid {
    grid-template-columns: 1fr;
  }

  .main {
    padding: 24px 16px 64px;
  }

  .header__nav-link {
    padding: 14px 10px;
    font-size: 0.6rem;
  }

  .album-header__title {
    font-size: 1.8rem;
  }

  .album-card__overlay {
    opacity: 1;
  }

  .subpage-grid__item-overlay {
    opacity: 1;
  }

  .lightbox__nav {
    width: 40px;
    height: 40px;
  }

  .lightbox__nav--prev {
    left: 8px;
  }

  .lightbox__nav--next {
    right: 8px;
  }

  .password-gate__card {
    padding: 36px 24px;
  }
}