/* ─── Variables ─────────────────────────────────────────── */
:root {
  --bg:          #f7f3ee;
  --bg-warm:     #f0ebe3;
  --surface:     #ffffff;
  --text:        #2a2420;
  --text-mid:    #6b5e55;
  --text-dim:    #9c8e85;
  --accent:      #a0715f;
  --accent-lt:   #c4a99a;
  --accent-dk:   #7d5548;
  --border:      #e0d6cc;
  --shadow:      rgba(42,36,32,0.08);
  --gap:         24px;
  --cols:        3;
}

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

html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: inherit; text-decoration: none; }
img { display: block; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ─── Scrollbar ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent-lt); border-radius: 2px; }

/* ─── Navigation ─────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 64px;
  background: rgba(247,243,238,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--text);
  transition: color 0.3s;
}
.logo:hover { color: var(--accent); }
.site-nav { display: flex; gap: 36px; }
.site-nav a {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  transition: color 0.3s;
  position: relative;
}
.site-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.4s;
}
.site-nav a:hover, .site-nav a.active { color: var(--accent); }
.site-nav a:hover::after, .site-nav a.active::after { width: 100%; }

/* ─── Hero / Page Title ──────────────────────────────────── */
.hero {
  padding: 72px 64px 48px;
  border-bottom: 1px solid var(--border);
}
.hero-eyebrow {
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  opacity: 0;
  animation: fadeUp 0.8s 0.1s ease forwards;
}
.hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 300;
  letter-spacing: 0.03em;
  color: var(--text);
  opacity: 0;
  animation: fadeUp 0.9s 0.2s ease forwards;
}
.hero-sub {
  margin-top: 10px;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  opacity: 0;
  animation: fadeUp 0.8s 0.35s ease forwards;
}

/* ─── Filter Bar ─────────────────────────────────────────── */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 36px 64px 48px;
}
.filter-btn {
  padding: 7px 20px;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: all 0.35s;
  border-radius: 2px;
}
.filter-btn:hover {
  color: var(--text);
  border-color: var(--accent-lt);
}
.filter-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ─── Gallery Container ───────────────────────────────────── */
.gallery-container {
  flex: 1;
  padding: 0 64px 80px;
  max-width: 1600px;
  margin: 0 auto;
  width: 100%;
  overflow: hidden;
}

/* ─── Masonry Grid ────────────────────────────────────────── */
.masonry-grid {
  columns: var(--cols);
  column-gap: var(--gap);
  width: 100%;
  overflow: hidden;
}
.gallery-item {
  break-inside: avoid;
  margin-bottom: var(--gap);
  position: relative;
  cursor: pointer;
  background: var(--surface);
  box-shadow: 0 2px 12px var(--shadow);
  overflow: hidden;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease, box-shadow 0.4s;
  /* Explicit width prevents column overflow */
  width: 100%;
  max-width: 100%;
}
.gallery-item.visible {
  opacity: 1;
  transform: translateY(0);
}
.gallery-item.hidden { display: none; }
.gallery-item:hover {
  box-shadow: 0 8px 32px rgba(42,36,32,0.14);
}

.gallery-item img {
  width: 100%;
  display: block;
  filter: saturate(0.82) sepia(4%);
  transition: filter 0.6s, transform 0.7s cubic-bezier(0.25,0.46,0.45,0.94);
}
.gallery-item:hover img {
  filter: saturate(1) sepia(0%);
  transform: scale(1.025);
}

/* Caption */
.gallery-caption {
  padding: 14px 14px 16px;
  background: var(--surface);
  border-top: 1px solid var(--border);
}
.caption-title {
  font-family: 'Playfair Display', serif;
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text);
  display: block;
  line-height: 1.3;
}
.caption-meta {
  font-size: 0.68rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
  margin-top: 3px;
  display: block;
}
.caption-project {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ─── Loader ──────────────────────────────────────────────── */
.loader {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 60px 0;
}
.loader span {
  width: 6px;
  height: 6px;
  background: var(--accent-lt);
  border-radius: 50%;
  animation: pulse 1.4s ease-in-out infinite;
}
.loader span:nth-child(2) { animation-delay: 0.2s; }
.loader span:nth-child(3) { animation-delay: 0.4s; }
@keyframes pulse {
  0%, 100% { opacity: 0.3; transform: scale(0.7); }
  50% { opacity: 1; transform: scale(1); }
}
.loader.hidden { display: none; }

/* ─── Lightbox ─────────────────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(247,243,238,0.96);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}
.lightbox.active {
  opacity: 1;
  pointer-events: all;
}

.lb-content {
  position: relative;
  max-width: min(90vw, 1100px);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.lb-img-wrap {
  padding: 12px;
  background: var(--surface);
  box-shadow: 0 12px 48px rgba(42,36,32,0.15);
}
.lb-content img {
  max-width: min(88vw, 1076px);
  max-height: 78vh;
  object-fit: contain;
  display: block;
  transition: opacity 0.3s;
}
.lb-info {
  width: 100%;
  max-width: 1076px;
  padding: 20px 12px 0;
  text-align: center;
}
.lb-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.2rem, 2.5vw, 1.7rem);
  font-weight: 400;
  color: var(--text);
  display: block;
  letter-spacing: 0.02em;
}
.lb-meta {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 6px;
  letter-spacing: 0.07em;
  display: block;
}

.lb-counter {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  text-transform: uppercase;
}
.lb-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
  z-index: 2001;
}
.lb-close,
.lb-prev,
.lb-next {
  position: fixed;
  color: var(--text-dim);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.3s, transform 0.3s;
  z-index: 2001;
}
.lb-close:hover, .lb-prev:hover, .lb-next:hover { color: var(--accent); }
.lb-close { top: 20px; right: 28px; font-size: 1.8rem; line-height: 1; }
.lb-prev { left: 16px; top: 50%; transform: translateY(-50%); font-size: 1.4rem; }
.lb-next { right: 16px; top: 50%; transform: translateY(-50%); font-size: 1.4rem; }
.lb-prev:hover { transform: translateY(-50%) translateX(-3px); }
.lb-next:hover { transform: translateY(-50%) translateX(3px); }

/* ─── Footer ──────────────────────────────────────────────── */
.site-footer {
  text-align: center;
  padding: 48px;
  font-size: 0.68rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  border-top: 1px solid var(--border);
}

/* ─── Keyframes ───────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Responsive ───────────────────────────────────────────── */
@media (max-width: 1100px) { :root { --cols: 2; } }
@media (max-width: 700px) {
  :root { --cols: 1; --gap: 16px; }
  .site-header { padding: 20px 24px; }
  .hero { padding: 56px 24px 36px; }
  .filter-bar { padding: 24px 24px 36px; }
  .gallery-container { padding: 0 24px 60px; }
  .lb-close { right: 12px; }
  .lb-prev { left: 8px; }
  .lb-next { right: 8px; }
}