/* Photos page: masonry gallery + lightbox.
   Self-contained — shares the site palette with css/style.css. */

:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #757575;
  --line: #e6e6e6;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
}
@media (prefers-color-scheme: dark) {
  :root { --bg:#0e0e0e; --fg:#e8e8e8; --muted:#8a8a8a; --line:#262626; }
}

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

html { scroll-behavior: smooth; }
body, html { width: 100%; height: 100%; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Top nav (shared shell) ---------- */
nav.top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  max-width: 900px;
  margin: 0 auto 2.5rem;
  padding: 2rem 1.5rem 0;
  font-size: 0.9rem;
}
nav.top .name { font-weight: 600; }
nav.top .name a { color: var(--fg); text-decoration: none; }
nav.top .links a { margin-left: 1.25rem; color: var(--muted); text-decoration: none; }
nav.top .links a:hover { color: var(--fg); }

/* ---------- Page header ---------- */
.page-head { margin: 0 auto 2rem; padding: 0 1.5rem; text-align: center; }
.page-head h1 {
  font-size: 1.6rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
  letter-spacing: -0.02em;
  padding-top: 1vh;
  /* fades in once the gallery has preloaded (body.photo-ready) */
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.page-head .sub { color: var(--muted); font-size: 0.95rem; }
.photo-ready .page-head h1 { opacity: 1; transform: translateY(0); }

/* ---------- Full-screen loader ---------- */
.page-loader {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  z-index: 2000;
  opacity: 1;
  transition: opacity 0.8s ease;
}
.page-loader--hide { opacity: 0; pointer-events: none; }
.loader-text {
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg);
}

/* ---------- Gallery ---------- */
.gallery {
  column-count: 6;
  column-gap: 10px;
  width: 100%;
  margin: auto;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.photo-ready .gallery { opacity: 1; transform: translateY(0); }

.gallery-item {
  width: 100%;
  margin-bottom: 10px;
  break-inside: avoid;
  display: block;
  height: auto;
  transition: opacity 0.4s ease-in;
}
.gallery-item.lazy {
  /* Placeholder while waiting to load */
  height: 250px;
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
  opacity: 1;
}
.gallery-item.loading {
  background: linear-gradient(90deg, #e8e8e8 25%, #d0d0d0 50%, #e8e8e8 75%);
  background-size: 200% 100%;
  animation: loading 1.2s infinite;
}
.gallery-item.loaded {
  background: none;
  animation: none;
  height: auto;
  opacity: 1;
}
.gallery-item.error {
  height: 250px;
  background-color: #ffeeee;
  opacity: 0.6;
}
@keyframes loading {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
.gallery img:hover { opacity: 0.8; }

/* ---------- Lightbox modal ---------- */
.modal {
  display: none;
  position: fixed;
  z-index: 1;
  padding-top: 100px;
  inset: 0;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.9);
}
.modal-content {
  margin: auto;
  display: block;
  max-height: 80%;
  max-width: 80%;
  transition: opacity 0.3s ease-in-out;
}
.modal-content.loading { opacity: 0.3; }

#caption {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 700px;
  text-align: center;
  color: #ccc;
  padding: 10px 0;
  height: 150px;
}

.close {
  position: absolute;
  top: 15px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  transition: transform 0.5s ease, color 0.5s ease;
}
.close:hover,
.close:focus {
  color: #C41E3A;
  text-decoration: none;
  transform: scale(1.3);
}

.prev,
.next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  width: auto;
  padding: 16px;
  margin-top: -50px;
  color: white;
  font-weight: bold;
  font-size: 20px;
  transition: transform 0.5s ease, color 0.5s ease, background-color 0.5s ease;
  user-select: none;
  -webkit-user-select: none;
}
.prev { left: 0; }
.next { right: 0; }
.prev:hover,
.next:hover {
  background-color: rgba(0, 0, 0, 0.8);
  color: #C41E3A;
  transform: scale(1.3);
}

/* ---------- Footer ---------- */
footer { text-align: center; color: var(--muted); font-size: 0.85rem; }
footer p { color: var(--muted); }