/* Global theme */
:root {
  --bg: #0b0b0b;
  --text: #e7e7e7;
  --muted: #dedede;
  --border: #222;
  --link: #ffffff;
  --link-muted: #cfcfcf;
  --shadow: rgba(0, 0, 0, 0.5);
}

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Nanum Myeongjo", serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  width: min(1200px, 92%);
  margin-left: auto;
  margin-right: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(6px);
  background: rgba(11, 11, 11, 0.85);
  transition: transform 220ms ease;
  font-family: "Orpheus Pro", "Orpheus-Pro", "Nanum Myeongjo", serif;
}

.site-header.hidden {
  transform: translateY(-100%);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 64px 0;
}

.site-title {
  color: var(--link);
  text-decoration: none;
  font-weight: 600;
  font-size: clamp(18px, 3.2vw, 24px);
  letter-spacing: 0.2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-link {
  color: var(--link-muted);
  text-decoration: none;
  font-size: 18px;
  font-weight: 600;
  padding: 6px 2px;
  border-radius: 4px;
  transition: color 160ms ease-in-out, background-color 160ms ease-in-out;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--link);
  outline: none;
  /* text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px; */
}

.nav-link.active {
  color: var(--link);
}

/* Photo feed */
.photo-feed {
  padding: 0 0 0;
}

.photo-section {
  min-height: 80vh;
  display: grid;
  align-content: center;
  padding: 40px 0;
  /* border-bottom: 1px solid var(--border); */
}

.photo-card {
  margin: 0;
}

.photo {
  width: 100%;
  height: auto;
  max-height: 70vh;
  display: block;
  /* border-radius: 8px; */
  box-shadow: 0 10px 30px var(--shadow);
  background: #111;
  object-fit: contain;
}

.photo-caption {
  margin-top: 24px;
  color: var(--text);
  line-height: 1.45;
}

.photo-caption .location {
  font-size: clamp(20px, 3vw, 34px);
  font-weight: 700;
  letter-spacing: 0.2px;
}

.photo-caption .date {
  margin-top: 8px;
  font-size: clamp(16px, 2.2vw, 18px);
  color: var(--muted);
}

/* Footer */
.site-footer {
  /* border-top: 1px solid var(--border); */
  padding: 100px 0 40px;
  color: var(--muted);
  font-size: 14px;
  font-family: "Orpheus Pro", "Orpheus-Pro", "Nanum Myeongjo", serif;
}

/* Accessibility helpers */
a:focus-visible {
  outline: 2px dashed #888;
  outline-offset: 3px;
}

/* Caption row with optional local-script (Chinese) label */
.caption-row {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  flex-wrap: wrap;
}

.caption-row .local-script {
  margin-left: auto;
  font-family: "Noto Serif SC", "Noto Serif CJK JP", "Noto Serif CJK SC", "Songti SC", serif;
  font-size: clamp(16px, 2.6vw, 22px);
  font-weight: 300; /* Supported thin weight for Noto Serif SC */
  letter-spacing: 0.1em;
  color: var(--muted);
  line-height: 1.2;
}

.photo-caption .date {
  margin-top: 8px;
  font-size: clamp(16px, 2.2vw, 18px);
  color: var(--muted);
  font-family: "Orpheus Pro", "Orpheus-Pro", "Nanum Myeongjo", serif;
}

/* Links on hero photos (homepage) */
.photo-link {
  display: block;
  text-decoration: none;
  color: inherit;
}
.photo-link:visited,
.photo-link:hover,
.photo-link:active,
.photo-link:focus {
  text-decoration: none;
  color: inherit;
}
.photo-link .photo {
  cursor: zoom-in;
}

/* Masonry layout for collection pages */
.masonry {
  column-gap: 16px;
  column-count: 1;
  padding: 24px 0 64px;
}
@media (min-width: 640px) {
  .masonry {
    column-count: 2;
  }
}
@media (min-width: 1024px) {
  .masonry {
    column-count: 3;
  }
}
.masonry-item {
  break-inside: avoid;
  margin-bottom: 16px;
  display: block;
}
.masonry-item img {
  width: 100%;
  height: auto;
  display: block;
  box-shadow: 0 6px 22px var(--shadow);
  background: #111;
}

/* Justified (row-based) layout for balanced visual scale */
.justified {
  padding: 8px 0 64px;
}
.justified-row {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}
.justified-item {
  display: block;
}
.justified-item img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  box-shadow: 0 6px 22px var(--shadow);
  background: #111;
}

/* Responsive stacking on small screens for readability */
@media (max-width: 760px) {
  .justified-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 12px;
  }
  .justified-item {
    width: 100% !important;
    height: auto !important;
  }
  .justified-item img {
    height: auto;
    object-fit: contain;
  }
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.92);
  z-index: 1000;
}
.lightbox.open {
  display: flex;
}
.lightbox img {
  max-width: 96vw;
  max-height: 92vh;
  box-shadow: 0 10px 32px rgba(0,0,0,0.7);
  background: #000;
}
.lightbox .close {
  position: absolute;
  top: 16px;
  right: 20px;
  color: #eee;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  user-select: none;
  font-family: "Orpheus Pro", "Orpheus-Pro", "Nanum Myeongjo", serif;
}
.lightbox .nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: #eee;
  font-size: 36px;
  line-height: 1;
  cursor: pointer;
  user-select: none;
  padding: 12px;
  background: rgba(0,0,0,0.25);
  border-radius: 6px;
}
.lightbox .prev { left: 16px; }
.lightbox .next { right: 16px; }

/* Small screens tweaks */
@media (max-width: 420px) {
  .header-container {
    padding: 12px 0;
  }
  .site-nav {
    gap: 14px;
  }
  .caption-row .local-script {
    flex-basis: 100%;
    margin-left: 0;
    text-align: left;
    margin-top: 6px;
  }
}