:root {
  --black:  #0a0a0a;
  --gold:   #c9a84c;
  --gold-l: #e8c96a;
  --white:  #fff;
  --gray:   rgba(255,255,255,.45);
  --border: rgba(255,255,255,.08);
  --ff-s: 'Playfair Display', serif;
  --ff-b: 'Inter', sans-serif;
}

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

body {
  background: #141414;
  color: var(--white);
  font-family: var(--ff-b);
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.g-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 60px;
  background: linear-gradient(to bottom, rgba(0,0,0,.85), transparent);
  backdrop-filter: blur(0px);
}
.g-logo img { height: 40px; }
.g-back {
  font-size: 13px;
  color: var(--gray);
  text-decoration: none;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: color .2s;
  display: flex;
  align-items: center;
  gap: 8px;
}
.g-back:hover { color: var(--gold); }

/* HEADER */
.g-header {
  padding: 160px 60px 60px;
  text-align: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(201,168,76,.08) 0%, transparent 70%);
}
.eyebrow {
  font-size: 11px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 18px;
  display: block;
}
.g-header h1 {
  font-family: var(--ff-s);
  font-size: clamp(42px, 7vw, 88px);
  font-weight: 700;
  line-height: 1.05;
  margin-bottom: 20px;
}
.g-header h1 em {
  font-style: italic;
  color: var(--gold);
}
.g-sub {
  font-size: 16px;
  color: rgba(255,255,255,.6);
  letter-spacing: .5px;
}

.g-divider {
  width: 48px;
  height: 2px;
  background: var(--gold);
  margin: 24px auto 0;
  border-radius: 2px;
}

/* FILTER */
.g-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0 60px 72px;
}
.f-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--gray);
  font-family: var(--ff-b);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 12px 28px;
  border-radius: 50px;
  cursor: pointer;
  transition: all .25s;
}
.f-btn:hover {
  border-color: rgba(201,168,76,.5);
  color: var(--gold);
}
.f-btn.active {
  background: var(--gold);
  border-color: var(--gold);
  color: #0a0a0a;
  font-weight: 600;
}

/* GRID — masonry style */
.g-grid {
  columns: 3;
  column-gap: 20px;
  padding: 0 60px 100px;
  max-width: 1440px;
  margin: 0 auto;
}
.g-item {
  break-inside: avoid;
  margin-bottom: 20px;
  position: relative;
  cursor: pointer;
  overflow: hidden;
  border-radius: 12px;
  background: #222;
  box-shadow: 0 4px 24px rgba(0,0,0,.3);
}
.g-item img {
  width: 100%;
  display: block;
  transition: transform .6s cubic-bezier(.25,.46,.45,.94);
}
.g-item:hover img {
  transform: scale(1.06);
}
.g-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.65) 0%, transparent 55%);
  opacity: 0;
  transition: opacity .4s;
  display: flex;
  align-items: flex-end;
  padding: 24px;
}
.g-item:hover .g-item-overlay {
  opacity: 1;
}
.g-item-label {
  font-size: 14px;
  color: var(--white);
  letter-spacing: .5px;
  font-family: var(--ff-s);
  font-style: italic;
}

/* LIGHTBOX */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox.hidden { display: none; }

.lb-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.97);
  cursor: pointer;
}

.lb-close {
  position: absolute;
  top: 28px; right: 36px;
  z-index: 10;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--gray);
  font-size: 16px;
  width: 48px; height: 48px;
  border-radius: 50%;
  cursor: pointer;
  transition: all .2s;
  display: flex; align-items: center; justify-content: center;
}
.lb-close:hover {
  border-color: var(--white);
  color: var(--white);
  background: rgba(255,255,255,.06);
}

.lb-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--white);
  font-size: 20px;
  width: 56px; height: 56px;
  border-radius: 50%;
  cursor: pointer;
  transition: all .25s;
  display: flex; align-items: center; justify-content: center;
}
.lb-arrow:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: #0a0a0a;
}
.lb-prev { left: 40px; }
.lb-next { right: 40px; }

.lb-stage {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100vh;
  padding: 100px 140px;
}

.lb-book {
  position: relative;
  max-width: 960px;
  width: 100%;
  text-align: center;
}

.lb-img {
  max-width: 100%;
  max-height: 78vh;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: 0 60px 120px rgba(0,0,0,.9);
  transition: opacity .35s ease, transform .35s ease;
}
.lb-img.fade {
  opacity: 0;
  transform: scale(.96);
}

.lb-caption {
  margin-top: 24px;
  font-size: 15px;
  color: var(--gray);
  letter-spacing: .5px;
  font-style: italic;
  font-family: var(--ff-s);
}

.lb-bar {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 24px;
}
.lb-cat {
  color: var(--gold);
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: 11px;
}
.lb-count {
  color: var(--gray);
  font-size: 13px;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .g-grid { columns: 2; padding: 0 32px 80px; }
  .g-nav, .g-header, .g-filter { padding-left: 32px; padding-right: 32px; }
}
@media (max-width: 768px) {
  .g-nav { padding: 20px 24px; }
  .g-header { padding: 120px 24px 48px; }
  .g-filter { padding: 0 24px 56px; }
  .g-grid { columns: 1; padding: 0 24px 60px; }
  .lb-prev { left: 16px; }
  .lb-next { right: 16px; }
  .lb-stage { padding: 80px 80px; }
}