/* collection.css */
.filter-bar {
  position: sticky; top: 80px; z-index: 500;
  background: rgba(10,10,10,.96); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201,169,110,.12);
  padding: .8rem 2rem;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  flex-wrap: wrap;
}
.filter-inner { display: flex; gap: .5rem; flex-wrap: wrap; }
.f-btn {
  background: none; border: 1px solid rgba(201,169,110,.25); color: var(--grey);
  padding: .45em 1.2em; font-family: var(--font-body); font-size: .78rem;
  letter-spacing: .15em; cursor: pointer; border-radius: 999px;
  transition: all var(--transition); display: flex; align-items: center; gap: .4rem;
}
.f-btn:hover,.f-btn.active { background: var(--gold); border-color: var(--gold); color: var(--black); }
.f-count { font-size: .68rem; opacity: .8; }
.filter-sort select {
  background: rgba(255,255,255,.05); border: 1px solid rgba(201,169,110,.2); color: var(--light-grey);
  padding: .45em 1em; font-family: var(--font-body); font-size: .78rem; cursor: pointer;
  outline: none;
}
.filter-sort select option { background: var(--dark2); }

.coll-container { max-width: 1400px; margin: 0 auto; padding: 3rem 1.5rem 5rem; }
.coll-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5px;
}

/* Card */
.c-card {
  background: var(--dark2); cursor: pointer; overflow: hidden;
  transition: transform .35s; position: relative;
  animation: cardIn .5s ease both;
}
@keyframes cardIn { from{opacity:0;transform:translateY(16px)} to{opacity:1;transform:translateY(0)} }
.c-card:hover { transform: translateY(-5px); box-shadow: 0 16px 48px rgba(201,169,110,.18); }
.c-card.hidden { display: none !important; }
.c-img-wrap { position:relative; overflow:hidden; height:300px; }
.c-img-wrap img { width:100%; height:100%; object-fit:cover; filter:brightness(.88) saturate(.9); transition:transform .8s,filter .8s; }
.c-card:hover .c-img-wrap img { transform:scale(1.07); filter:brightness(1) saturate(1.1); }
.c-overlay {
  position:absolute; inset:0; background:rgba(0,0,0,.55);
  display:flex; align-items:center; justify-content:center;
  opacity:0; transition:opacity var(--transition);
}
.c-card:hover .c-overlay { opacity:1; }
.c-overlay-btn {
  padding:.65em 1.8em; border:1px solid var(--gold-light); color:var(--gold-light);
  font-size:.78rem; letter-spacing:.22em; transition:background var(--transition),color var(--transition);
}
.c-overlay-btn:hover { background:var(--gold); color:var(--black); border-color:var(--gold); }
.c-badge {
  position:absolute; top:1rem; right:1rem;
  background:rgba(201,169,110,.85); color:var(--black);
  font-size:.6rem; letter-spacing:.18em; padding:.3em .8em; text-transform:uppercase;
}
.c-info { padding:1.4rem 1.5rem; }
.c-cat { font-size:.65rem; letter-spacing:.3em; color:var(--gold); text-transform:uppercase; margin-bottom:.35rem; }
.c-name { font-family:var(--font-serif); font-size:1rem; font-weight:400; color:var(--white); letter-spacing:.07em; margin-bottom:.6rem; }
.c-desc { font-size:.78rem; color:var(--grey); line-height:1.75; margin-bottom:1rem; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.c-footer { display:flex; justify-content:space-between; align-items:center; padding-top:.9rem; border-top:1px solid rgba(255,255,255,.06); }
.c-price { font-family:var(--font-display); font-size:1.05rem; color:var(--gold-light); }
.c-stone { font-size:.65rem; color:var(--grey); letter-spacing:.08em; }

/* Load more */
.load-more-wrap { text-align:center; margin-top:3rem; }
.load-info { font-size:.78rem; color:var(--grey); margin-top:.8rem; letter-spacing:.12em; }

/* Modal */
.modal-overlay {
  position:fixed; inset:0; background:rgba(0,0,0,.85); z-index:2000;
  display:flex; align-items:center; justify-content:center; padding:1.5rem;
  opacity:0; pointer-events:none; transition:opacity .35s;
}
.modal-overlay.open { opacity:1; pointer-events:auto; }
.modal-box {
  background:var(--dark2); max-width:960px; width:100%; max-height:90vh; overflow-y:auto;
  position:relative; border:1px solid rgba(201,169,110,.2);
  transform:scale(.95); transition:transform .35s;
}
.modal-overlay.open .modal-box { transform:scale(1); }
.modal-close {
  position:absolute; top:1rem; right:1rem; z-index:10;
  background:rgba(0,0,0,.5); border:1px solid rgba(201,169,110,.3); color:var(--gold-light);
  width:36px; height:36px; border-radius:50%; cursor:pointer;
  display:flex; align-items:center; justify-content:center; font-size:1rem;
  transition:background var(--transition);
}
.modal-close:hover { background:var(--gold); color:var(--black); }
.modal-inner { display:grid; grid-template-columns:1fr 1fr; }
.modal-img-col { position:relative; overflow:hidden; }
.modal-img-col img { width:100%; height:100%; min-height:440px; object-fit:cover; }
.modal-badge-wrap { position:absolute; top:1rem; left:1rem; }
.modal-badge { background:var(--gold); color:var(--black); font-size:.62rem; letter-spacing:.18em; padding:.3em .8em; text-transform:uppercase; }
.modal-info-col { padding:2.5rem 2rem; }
.modal-cat { font-size:.65rem; letter-spacing:.4em; color:var(--gold); text-transform:uppercase; margin-bottom:.5rem; }
.modal-name { font-family:var(--font-serif); font-size:1.5rem; font-weight:400; color:var(--white); letter-spacing:.1em; }
.modal-rule { width:60px; height:1px; background:linear-gradient(to right,transparent,var(--gold),transparent); margin:1rem 0; }
.modal-price { font-family:var(--font-display); font-size:1.6rem; color:var(--gold-light); margin-bottom:1rem; }
.modal-desc { font-size:.88rem; color:var(--light-grey); line-height:1.95; margin-bottom:1.5rem; }
.modal-specs { background:rgba(201,169,110,.05); border:1px solid rgba(201,169,110,.12); padding:1.2rem; margin-bottom:1.5rem; }
.spec-row { display:flex; gap:1rem; padding:.45rem 0; border-bottom:1px solid rgba(255,255,255,.04); }
.spec-row:last-child { border-bottom:none; }
.spec-k { font-size:.72rem; letter-spacing:.2em; color:var(--gold); min-width:40px; flex-shrink:0; text-transform:uppercase; }
.spec-v { font-size:.85rem; color:var(--light-grey); }
.modal-actions { display:flex; gap:1rem; flex-wrap:wrap; }

@media(max-width:720px){
  .modal-inner { grid-template-columns:1fr; }
  .modal-img-col img { min-height:280px; }
  .filter-bar { top:70px; }
}
@media(max-width:480px){
  .coll-grid { grid-template-columns:1fr 1fr; gap:1px; }
  .c-img-wrap { height:200px; }
  .c-info { padding:1rem; }
}