/* ═══════════════════════════════════════════
   FEFESAURS Design System
   ═══════════════════════════════════════════ */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --royal:#1a1a5e;--deep:#0d0d2b;--deeper:#070718;
  --gold:#fbbf24;--gold-bright:#fcd34d;--gold-dim:#d4a017;
  --punk-purple:#a855f7;--punk-purple-dim:#7c3aed;
  --punk-orange:#f97316;--punk-red:#ef4444;
  --dino-yellow:#facc15;--text:#e2e8f0;--muted:#94a3b8;
  --glass:rgba(26,26,94,0.65);--glass-border:rgba(251,191,36,0.2);
  --card:rgba(15,15,50,0.8);--card-hover:rgba(26,26,94,0.9);
  --green:#4ade80;--red:#ef4444;
  --radius:12px;--radius-lg:20px;
}
html{scroll-behavior:smooth}
body{
  font-family:'Space Mono',monospace;background:var(--deep);color:var(--text);
  overflow-x:hidden;min-height:100vh;line-height:1.6;
}
a{color:var(--gold);text-decoration:none;transition:color .2s}
a:hover{color:var(--gold-bright)}
::selection{background:var(--punk-purple);color:#fff}

/* ── NAV ── */
.nav{
  position:sticky;top:0;z-index:100;
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  background:rgba(13,13,43,0.85);border-bottom:1px solid var(--glass-border);
  padding:0 5vw;height:64px;display:flex;align-items:center;justify-content:space-between;
}
.nav-logo{
  font-family:'Bungee',cursive;font-size:1.3rem;color:var(--gold);
  text-shadow:0 0 20px rgba(251,191,36,0.4);letter-spacing:2px;
}
.nav-logo span{color:var(--punk-purple)}
.nav-links{display:flex;gap:2rem;align-items:center}
.nav-links a{
  color:var(--muted);text-decoration:none;font-size:.8rem;
  font-weight:700;text-transform:uppercase;letter-spacing:1.5px;
  transition:color .2s;position:relative;
}
.nav-links a:hover,.nav-links a.active{color:var(--gold)}
.nav-links a.active::after{
  content:'';position:absolute;bottom:-4px;left:0;right:0;
  height:2px;background:var(--gold);border-radius:1px;
}
.nav-right{display:flex;align-items:center;gap:1rem}

/* ── STATS BAR ── */
.stats-bar{
  background:var(--card);border-bottom:1px solid var(--glass-border);
  padding:16px 5vw;
}
.stats-grid{
  display:flex;gap:2rem;flex-wrap:wrap;max-width:1400px;margin:0 auto;
}
.stat-item{display:flex;flex-direction:column;gap:2px}
.stat-label{font-size:.65rem;text-transform:uppercase;letter-spacing:2px;color:var(--muted)}
.stat-value{font-family:'Bungee',cursive;font-size:1.1rem;color:var(--gold)}
.stat-value.green{color:var(--green)}
.stat-value.blue{color:#60a5fa}

/* ── COLLECTION HERO ── */
.collection-hero{
  position:relative;width:100%;height:280px;overflow:hidden;
  background:linear-gradient(135deg,var(--royal),var(--deeper),#1a0a2e);
}
.collection-hero-bg{
  position:absolute;inset:0;
  background-image:
    radial-gradient(circle at 20% 50%,rgba(168,85,247,0.15),transparent 50%),
    radial-gradient(circle at 80% 50%,rgba(251,191,36,0.1),transparent 50%);
}
.collection-hero-pattern{
  position:absolute;inset:0;
  background-image:radial-gradient(circle,rgba(251,191,36,0.03) 1px,transparent 1px);
  background-size:24px 24px;
}
.collection-info{
  position:absolute;bottom:24px;left:5vw;display:flex;align-items:flex-end;gap:20px;
}
.collection-avatar{
  width:80px;height:80px;border-radius:50%;border:3px solid var(--gold);
  box-shadow:0 0 30px rgba(251,191,36,0.3);object-fit:cover;
  background:var(--deep);
}
.collection-name{
  font-family:'Bungee',cursive;font-size:1.8rem;color:var(--gold);
  text-shadow:2px 2px 0 var(--punk-purple);
}
.collection-desc{font-size:.8rem;color:var(--muted);max-width:600px;margin-top:4px}

/* ── PAGE LAYOUT ── */
.page-content{
  max-width:1400px;margin:0 auto;padding:24px 5vw;
  display:grid;grid-template-columns:260px 1fr;gap:24px;
}
.page-full{max-width:1400px;margin:0 auto;padding:24px 5vw}

/* ── FILTER SIDEBAR ── */
.sidebar{display:flex;flex-direction:column;gap:16px}
.filter-group{
  background:var(--card);border:1px solid var(--glass-border);
  border-radius:var(--radius);padding:16px;overflow:hidden;
}
.filter-header{
  display:flex;justify-content:space-between;align-items:center;
  cursor:pointer;padding:4px 0;
}
.filter-title{
  font-family:'Bungee',cursive;font-size:.75rem;color:var(--text);
  letter-spacing:1px;text-transform:uppercase;
}
.filter-toggle{
  color:var(--muted);font-size:1.2rem;transition:transform .2s;
}
.filter-header.collapsed .filter-toggle{transform:rotate(-90deg)}
.filter-body{margin-top:12px;display:flex;flex-direction:column;gap:8px}
.filter-body.collapsed{display:none}
.filter-option{
  display:flex;align-items:center;gap:8px;padding:6px 8px;
  border-radius:8px;cursor:pointer;transition:background .2s;
  font-size:.8rem;color:var(--muted);
}
.filter-option:hover{background:rgba(251,191,36,0.05);color:var(--text)}
.filter-option input[type="checkbox"]{
  appearance:none;-webkit-appearance:none;width:16px;height:16px;
  border:2px solid var(--glass-border);border-radius:4px;background:transparent;
  cursor:pointer;position:relative;flex-shrink:0;
}
.filter-option input[type="checkbox"]:checked{
  background:var(--gold);border-color:var(--gold);
}
.filter-option input[type="checkbox"]:checked::after{
  content:'✓';position:absolute;inset:0;display:flex;
  align-items:center;justify-content:center;
  font-size:10px;color:var(--deep);font-weight:bold;
}
.filter-count{margin-left:auto;font-size:.7rem;color:var(--muted)}
.price-range{display:flex;gap:8px;align-items:center;margin-top:8px}
.price-input{
  flex:1;padding:8px 10px;background:rgba(0,0,0,0.3);
  border:1px solid var(--glass-border);border-radius:8px;
  color:var(--text);font-family:'Space Mono',monospace;font-size:.8rem;
  outline:none;
}
.price-input:focus{border-color:var(--gold)}
.price-sep{color:var(--muted);font-size:.75rem}

/* ── ITEMS GRID ── */
.items-section{display:flex;flex-direction:column;gap:16px}
.items-header{
  display:flex;justify-content:space-between;align-items:center;
}
.items-count{font-size:.85rem;color:var(--muted)}
.sort-select{
  padding:8px 12px;background:var(--card);border:1px solid var(--glass-border);
  border-radius:8px;color:var(--text);font-family:'Space Mono',monospace;
  font-size:.8rem;cursor:pointer;outline:none;
}
.sort-select option{background:var(--deep)}
.items-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
  gap:16px;
}
.nft-card{
  background:var(--card);border:1px solid var(--glass-border);
  border-radius:var(--radius);overflow:hidden;
  transition:transform .2s,border-color .2s,box-shadow .2s;cursor:pointer;
}
.nft-card:hover{
  transform:translateY(-4px);border-color:rgba(251,191,36,0.4);
  box-shadow:0 12px 40px rgba(0,0,0,0.4);
}
.nft-card-img{
  width:100%;aspect-ratio:1;object-fit:cover;display:block;
  background:var(--deeper);
}
.nft-card-body{padding:12px}
.nft-card-name{
  font-family:'Bungee',cursive;font-size:.75rem;color:var(--text);
  margin-bottom:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.nft-card-price{display:flex;align-items:center;gap:4px}
.nft-card-price .label{font-size:.65rem;color:var(--muted)}
.nft-card-price .value{
  font-family:'Bungee',cursive;font-size:.85rem;color:var(--gold);
}
.nft-card-last{font-size:.65rem;color:var(--muted);margin-top:4px}

/* ── MINT PAGE ── */
.mint-layout{
  display:grid;grid-template-columns:1fr 1fr;gap:3rem;
  max-width:1200px;margin:0 auto;padding:100px 5vw 60px;
  align-items:start;
}
.mint-art{position:relative;display:flex;justify-content:center}
.mint-art-frame{
  width:100%;max-width:480px;aspect-ratio:1;position:relative;
}
.mint-art-frame img{
  width:100%;height:100%;object-fit:cover;border-radius:var(--radius-lg);
  border:3px solid var(--gold);
  box-shadow:0 0 60px rgba(251,191,36,0.15),0 20px 60px rgba(0,0,0,0.5);
}
.orbit-ring{
  position:absolute;border:2px solid rgba(251,191,36,0.12);
  border-radius:50%;animation:orbit-spin 15s linear infinite;pointer-events:none;
}
.orbit-ring:nth-child(2){width:110%;height:110%;top:-5%;left:-5%;animation-duration:22s;animation-direction:reverse}
.orbit-ring:nth-child(3){width:120%;height:120%;top:-10%;left:-10%;animation-duration:30s;border-color:rgba(168,85,247,0.08)}
.orbit-dot{
  position:absolute;width:6px;height:6px;background:var(--gold);border-radius:50%;
  box-shadow:0 0 10px var(--gold);top:-3px;left:50%;
}
@keyframes orbit-spin{from{transform:rotate(0)}to{transform:rotate(360deg)}}

.mint-info{display:flex;flex-direction:column;gap:1.5rem}
.mint-badge{
  display:inline-flex;align-items:center;gap:.5rem;
  background:rgba(251,191,36,0.1);border:1px solid rgba(251,191,36,0.3);
  border-radius:999px;padding:6px 16px;font-size:.7rem;font-weight:700;
  color:var(--gold);text-transform:uppercase;letter-spacing:2px;width:fit-content;
}
.mint-badge .pulse{
  width:8px;height:8px;border-radius:50%;background:var(--gold);
  animation:pulse-glow 2s ease-in-out infinite;
}
@keyframes pulse-glow{0%,100%{box-shadow:0 0 4px var(--gold)}50%{box-shadow:0 0 16px var(--gold)}}
.mint-title{
  font-family:'Bungee',cursive;font-size:clamp(2rem,4vw,3rem);
  color:var(--gold);line-height:1.1;
  text-shadow:2px 2px 0 var(--punk-purple);
}
.mint-desc{font-size:.9rem;color:var(--muted);line-height:1.7}

/* mint card */
.mint-card{
  background:var(--glass);border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);padding:2rem;position:relative;overflow:hidden;
  backdrop-filter:blur(20px);
}
.mint-card::before{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(circle,rgba(251,191,36,0.03) 1px,transparent 1px);
  background-size:16px 16px;pointer-events:none;
}
.mint-card>*{position:relative;z-index:1}
.mint-price-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}
.mint-price-label{font-size:.75rem;text-transform:uppercase;letter-spacing:2px;color:var(--muted)}
.mint-price-value{font-family:'Bungee',cursive;font-size:1.8rem;color:var(--gold)}

/* supply progress */
.supply-wrap{margin-bottom:1.5rem}
.supply-header{display:flex;justify-content:space-between;margin-bottom:8px}
.supply-header span{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:var(--muted)}
.supply-header .count{color:var(--gold)}
.supply-bar{
  height:12px;background:rgba(0,0,0,0.3);border-radius:99px;overflow:hidden;
  border:1px solid rgba(251,191,36,0.1);
}
.supply-fill{
  height:100%;border-radius:99px;
  background:linear-gradient(90deg,var(--punk-purple),var(--gold),var(--punk-orange));
  background-size:200% 100%;animation:supply-gradient 3s ease-in-out infinite;
  transition:width 1s ease-out;
}
@keyframes supply-gradient{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}

/* quantity selector */
.qty-wrap{display:flex;align-items:center;gap:1rem;margin-bottom:1.5rem}
.qty-label{font-size:.75rem;text-transform:uppercase;letter-spacing:2px;color:var(--muted)}
.qty-controls{display:flex;align-items:center;gap:0}
.qty-btn{
  width:40px;height:40px;background:rgba(0,0,0,0.3);
  border:1px solid var(--glass-border);color:var(--text);
  font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:background .2s;
}
.qty-btn:first-child{border-radius:8px 0 0 8px}
.qty-btn:last-child{border-radius:0 8px 8px 0}
.qty-btn:hover{background:rgba(251,191,36,0.1)}
.qty-val{
  width:60px;height:40px;background:rgba(0,0,0,0.3);
  border-top:1px solid var(--glass-border);border-bottom:1px solid var(--glass-border);
  color:var(--text);font-family:'Bungee',cursive;font-size:1.1rem;
  display:flex;align-items:center;justify-content:center;
}

.btn-mint{
  width:100%;padding:16px;border:none;border-radius:12px;
  font-family:'Bungee',cursive;font-size:1.1rem;letter-spacing:2px;
  color:var(--deep);background:linear-gradient(135deg,var(--gold),var(--gold-bright));
  cursor:pointer;position:relative;overflow:hidden;
  transition:transform .2s,box-shadow .2s;
}
.btn-mint:hover{
  transform:translateY(-2px);box-shadow:0 8px 30px rgba(251,191,36,0.35);
}
.btn-mint:active{transform:translateY(0)}
.btn-mint::after{
  content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;
  background:linear-gradient(transparent,rgba(255,255,255,0.15),transparent);
  transform:rotate(45deg);animation:btn-shimmer 3s ease-in-out infinite;
}
@keyframes btn-shimmer{0%{transform:translateX(-100%) rotate(45deg)}100%{transform:translateX(100%) rotate(45deg)}}
.btn-mint .btn-text{position:relative;z-index:1}
.btn-mint:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* mint details */
.mint-details{
  display:grid;grid-template-columns:1fr 1fr;gap:12px;
  margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--glass-border);
}
.mint-detail{display:flex;flex-direction:column;gap:2px}
.mint-detail-label{font-size:.65rem;text-transform:uppercase;letter-spacing:1.5px;color:var(--muted)}
.mint-detail-value{font-size:.85rem;color:var(--text);font-weight:700}

/* ── ITEM DETAIL ── */
.detail-layout{
  display:grid;grid-template-columns:1fr 1fr;gap:3rem;
  max-width:1200px;margin:0 auto;padding:100px 5vw 60px;
  align-items:start;
}
.detail-art{position:relative;display:flex;justify-content:center}
.detail-art img{
  width:100%;max-width:520px;border-radius:var(--radius-lg);
  border:2px solid var(--glass-border);
  box-shadow:0 20px 60px rgba(0,0,0,0.5);
}
.detail-info{display:flex;flex-direction:column;gap:1.5rem}
.detail-collection{font-size:.8rem;color:var(--muted)}
.detail-collection a{color:var(--gold)}
.detail-name{
  font-family:'Bungee',cursive;font-size:clamp(1.5rem,3vw,2.2rem);
  color:var(--text);
}
.detail-owner-row{display:flex;gap:2rem}
.detail-owner{display:flex;flex-direction:column;gap:2px}
.detail-owner-label{font-size:.65rem;text-transform:uppercase;letter-spacing:1.5px;color:var(--muted)}
.detail-owner-value{font-size:.85rem;color:var(--gold);font-weight:700}

/* price card */
.price-card{
  background:var(--glass);border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);padding:1.5rem;
}
.price-card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}
.price-card-label{font-size:.7rem;text-transform:uppercase;letter-spacing:2px;color:var(--muted)}
.price-card-value{font-family:'Bungee',cursive;font-size:1.6rem;color:var(--gold)}
.price-card-sub{font-size:.75rem;color:var(--muted);margin-bottom:1rem}
.btn-buy{
  width:100%;padding:14px;border:none;border-radius:12px;
  font-family:'Bungee',cursive;font-size:1rem;letter-spacing:2px;
  color:var(--deep);background:linear-gradient(135deg,var(--gold),var(--gold-bright));
  cursor:pointer;transition:transform .2s,box-shadow .2s;
}
.btn-buy:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(251,191,36,0.35)}

/* traits grid */
.traits-section{margin-top:1rem}
.traits-title{
  font-family:'Bungee',cursive;font-size:.85rem;color:var(--text);
  margin-bottom:12px;letter-spacing:1px;
}
.traits-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.trait-card{
  background:rgba(168,85,247,0.08);border:1px solid rgba(168,85,247,0.15);
  border-radius:10px;padding:10px 12px;text-align:center;
}
.trait-type{font-size:.6rem;text-transform:uppercase;letter-spacing:1.5px;color:var(--punk-purple);margin-bottom:2px}
.trait-value{font-size:.8rem;color:var(--text);font-weight:700}
.trait-rarity{font-size:.6rem;color:var(--muted);margin-top:2px}

/* price history chart */
.price-history{
  background:var(--card);border:1px solid var(--glass-border);
  border-radius:var(--radius);padding:16px;margin-top:1rem;
}
.price-history-title{
  font-family:'Bungee',cursive;font-size:.75rem;color:var(--text);
  margin-bottom:12px;letter-spacing:1px;
}
.price-history canvas{width:100%;height:200px}

/* ── HALFTONE OVERLAY ── */
.halftone-overlay{
  position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:radial-gradient(circle,rgba(251,191,36,0.015) 1px,transparent 1px);
  background-size:20px 20px;
}

/* ── FOOTER ── */
.footer{
  border-top:1px solid var(--glass-border);
  padding:2rem 5vw;text-align:center;margin-top:4rem;
}
.footer p{font-size:.75rem;color:var(--muted)}

/* ── MOBILE ── */
@media(max-width:1024px){
  .page-content{grid-template-columns:1fr}
  .sidebar{display:none}
  .mint-layout,.detail-layout{grid-template-columns:1fr;padding:80px 5vw 40px}
  .collection-info{flex-direction:column;align-items:flex-start}
}
@media(max-width:600px){
  .items-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .traits-grid{grid-template-columns:repeat(2,1fr)}
  .nav-links{display:none}
  .stats-grid{gap:1rem}
  .mint-details{grid-template-columns:1fr}
  .detail-owner-row{flex-direction:column;gap:1rem}
}