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

:root {
  --bg: #0d0d0d;
  --text: #e0e0e0;
  --text-dim: #888;
  --accent: #c0a060;
  --gutter: 8px;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* Header */
.site-header {
  text-align: center;
  padding: 48px 16px 24px;
}

.site-header h1 {
  font-size: 2.5rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text);
}

.site-header .subtitle {
  font-size: 0.875rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  margin-top: 4px;
}

/* Masonry Gallery */
.gallery {
  columns: 4;
  column-gap: var(--gutter);
  padding: 0 16px 48px;
  max-width: 1600px;
  margin: 0 auto;
}

.gallery a {
  display: block;
  margin-bottom: var(--gutter);
  break-inside: avoid;
  text-decoration: none;
  border-radius: 3px;
  overflow: hidden;
  transition: transform 0.3s ease;
  will-change: transform;
}

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

.gallery a img {
  display: block;
  width: 100%;
  height: auto;
  cursor: zoom-in;
  backface-visibility: hidden;
  transition: filter 0.6s ease, transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* B&W on hover (desktop only) — touch devices show full color */
@media (hover: hover) {
  .gallery a img {
    filter: grayscale(1);
  }

  .gallery a:hover img {
    filter: grayscale(0);
    transform: scale(1.02);
  }
}

/* Touch: press-and-hold feedback */
@media (hover: none) {
  .gallery a:active img {
    transform: scale(0.98);
  }
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 24px 16px 48px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.site-footer .footer-nav {
  margin-top: 8px;
}

.site-footer a {
  color: var(--accent);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 1200px) {
  .gallery { columns: 3; }
}

@media (max-width: 800px) {
  .gallery { columns: 2; }
  .site-header h1 { font-size: 2rem; }
}

@media (max-width: 500px) {
  .gallery { columns: 1; padding: 0 8px 24px; }
  .site-header { padding: 32px 12px 16px; }
}

/* Site header link */
.site-header h1 a {
  color: inherit;
  text-decoration: none;
}
.site-header h1 a:hover {
  color: var(--accent);
}

/* Individual photo page */
.photo-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 64px;
}

.back-link {
  display: inline-block;
  color: var(--accent);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  margin-bottom: 24px;
  transition: opacity 0.2s;
}
.back-link:hover {
  opacity: 0.7;
}

.photo-figure {
  margin: 0 0 32px;
  line-height: 0;
}

.photo-full {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
}

.photo-info {
  margin-bottom: 32px;
}

.photo-title {
  font-size: 1.6rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
  color: var(--text);
}

.photo-date {
  font-size: 0.85rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.photo-note-full {
  max-width: 640px;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text);
  margin-bottom: 40px;
}

.photo-nav {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* PhotoSwipe dark theme overrides */
.pswp__bg {
  background: #0d0d0d !important;
}
.pswp__counter,
.pswp__caption__center {
  color: var(--text);
}
.pswp__button {
  filter: invert(0.85);
}
.pswp__preloader__icn {
  opacity: 0.5;
}

/* Permalink button in PhotoSwipe top bar */
.pswp__button--permalink {
  font-size: 18px;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.7;
  transition: opacity 0.2s;
}
.pswp__button--permalink:hover {
  opacity: 1;
}

/* Collapsible note bar in PhotoSwipe */
.pswp-note {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

.pswp-note[aria-hidden="true"] {
  pointer-events: none;
}

.pswp-note__header {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 20px;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.2s;
}

.pswp-note__header:hover {
  background: rgba(0, 0, 0, 0.85);
}

.pswp-note__label {
  color: var(--accent);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.7rem;
}

.pswp-note__date {
  margin-left: auto;
  color: var(--text-dim);
  font-size: 0.75rem;
}

.pswp-note__toggle {
  font-size: 0.65rem;
  transition: transform 0.3s ease;
  opacity: 0.5;
}

.pswp-note--expanded .pswp-note__toggle {
  transform: rotate(180deg);
}

.pswp-note__body {
  max-height: 0;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: max-height 0.35s ease, padding 0.35s ease;
}

.pswp-note--expanded .pswp-note__body {
  max-height: 60vh;
  overflow-y: auto;
  padding: 8px 20px 16px;
}

.pswp-note__body p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text);
  white-space: pre-wrap;
}

.pswp-note__link {
  display: inline-block;
  margin-top: 12px;
  color: var(--accent);
  text-decoration: none;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  transition: opacity 0.2s;
}
.pswp-note__link:hover {
  opacity: 0.65;
}

/* Responsive for individual photo page */
@media (max-width: 600px) {
  .photo-page { padding: 0 16px 48px; }
  .photo-title { font-size: 1.3rem; }
  .photo-note-full { font-size: 0.95rem; }
}

@media (max-width: 400px) {
  .pswp-note__header { padding: 8px 14px; font-size: 0.72rem; }
  .pswp-note__body { font-size: 0.82rem; }
  .pswp-note--expanded .pswp-note__body { padding: 6px 14px 12px; }
}