/* ===== BUY PAGE — PREMIUM DARK THEME ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root{
  --bg:#0a0f1e;--card:rgba(255,255,255,0.03);--card-hover:rgba(255,255,255,0.06);
  --accent:#38bdf8;--accent2:#818cf8;--accent3:#a78bfa;--gold:#fbbf24;
  --border:rgba(255,255,255,0.07);--border-hover:rgba(56,189,248,0.25);
  --text:#e2e8f0;--muted:#64748b;--glow:rgba(56,189,248,0.12);--glow2:rgba(129,140,248,0.12);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:#fff;overflow-x:hidden;}
a{text-decoration:none;color:inherit;}
img{max-width:100%;height:auto;}

/* AMBIENT */
.buy-gradient-bg{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none;
  background:radial-gradient(ellipse at 20% 30%,var(--glow) 0%,transparent 55%),
             radial-gradient(ellipse at 80% 60%,var(--glow2) 0%,transparent 55%);
  animation:buyBgShift 18s ease-in-out infinite alternate;}
@keyframes buyBgShift{0%{opacity:.5;transform:scale(1)}50%{opacity:1;transform:scale(1.04)}100%{opacity:.6;transform:scale(1)}}
#buyParticles{position:fixed;top:0;left:0;width:100%;height:100%;z-index:1;pointer-events:none;}

/* HEADER */
.buy-header{position:fixed;top:0;width:100%;z-index:1000;
  background:rgba(10,15,30,0.7);backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);transition:all .4s;}
body.admin-bar .buy-header{top:32px;}
.buy-header.scrolled{background:rgba(10,15,30,0.95);box-shadow:0 10px 40px rgba(0,0,0,.3);}
.buy-nav{display:flex;align-items:center;justify-content:space-between;padding:16px 30px;max-width:1200px;margin:auto;}
.buy-nav-links{display:flex;list-style:none;gap:30px;align-items:center;}
.buy-nav-links a{color:var(--muted);font-weight:500;font-size:13px;letter-spacing:.5px;text-transform:uppercase;transition:.3s;position:relative;}
.buy-nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .3s;border-radius:2px;}
.buy-nav-links a:hover{color:#fff;}.buy-nav-links a:hover::after{width:100%;}
.buy-nav-links .active-link{color:var(--accent)!important;}
.buy-nav-links .active-link::after{width:100%;}

/* CART BADGE */
.cart-toggle{position:relative;cursor:pointer;background:none;border:none;color:var(--muted);font-size:20px;transition:.3s;}
.cart-toggle:hover{color:var(--accent);transform:scale(1.15);}
.cart-badge{position:absolute;top:-8px;right:-10px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;font-size:10px;font-weight:700;width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center;}

/* HAMBURGER */
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;z-index:1001;}
.hamburger span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s;}

/* MOBILE */
.mobile-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(8px);opacity:0;visibility:hidden;transition:.3s;z-index:999;}
.mobile-overlay.active{opacity:1;visibility:visible;}
.mobile-menu{position:fixed;top:0;right:-320px;width:300px;height:100vh;background:var(--bg);border-left:1px solid var(--border);padding:100px 30px;transition:.4s cubic-bezier(.4,0,.2,1);z-index:1000;}
.mobile-menu.active{right:0;}
.mobile-menu a{display:block;margin-bottom:22px;font-size:16px;font-weight:600;color:var(--muted);transition:.3s;}
.mobile-menu a:hover{color:var(--accent);transform:translateX(8px);}

/* HERO */
.buy-hero{padding:160px 0 70px;text-align:center;position:relative;z-index:2;}
.buy-hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 18px;border-radius:50px;background:var(--card);border:1px solid var(--border);font-size:12px;color:var(--accent);font-weight:500;margin-bottom:24px;animation:heroFloat 3s ease-in-out infinite;}
@keyframes heroFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.buy-hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--gold);animation:dotPulse 2s infinite;}
@keyframes dotPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(1.4)}}
.buy-hero h1{font-family:'Space Grotesk',sans-serif;font-size:clamp(2.5rem,5vw,4rem);font-weight:800;background:linear-gradient(135deg,#fff 0%,#38bdf8 40%,#818cf8 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:16px;line-height:1.1;}
.buy-hero p{max-width:600px;margin:0 auto;font-size:1.05rem;color:var(--muted);line-height:1.7;}

/* FILTER TABS */
.filter-bar{display:flex;justify-content:center;gap:10px;margin-bottom:50px;flex-wrap:wrap;position:relative;z-index:2;}
.filter-btn{padding:10px 24px;border-radius:50px;border:1px solid var(--border);background:var(--card);color:var(--muted);font-size:13px;font-weight:600;cursor:pointer;transition:all .3s;text-transform:uppercase;letter-spacing:1px;}
.filter-btn:hover,.filter-btn.active{color:#fff;border-color:var(--border-hover);background:linear-gradient(135deg,rgba(56,189,248,0.1),rgba(129,140,248,0.1));box-shadow:0 0 20px var(--glow);}

/* PRODUCT GRID */
.shop-container{max-width:1200px;margin:auto;padding:0 20px 100px;position:relative;z-index:2;}
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;}

/* PRODUCT CARD */
.product-card{background:var(--card);border:1px solid var(--border);border-radius:22px;overflow:hidden;transition:all .4s ease;display:flex;flex-direction:column;position:relative;}
.product-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),var(--accent2),transparent);opacity:0;transition:.4s;z-index:1;}
.product-card:hover{transform:translateY(-10px);border-color:var(--border-hover);box-shadow:0 30px 60px rgba(0,0,0,.4);}
.product-card:hover::before{opacity:1;}

.product-card .product-img{width:100%;height:260px;object-fit:cover;border-bottom:1px solid var(--border);transition:transform .5s;}
.product-card:hover .product-img{transform:scale(1.05);}
.product-card .img-wrapper{overflow:hidden;position:relative;}
.product-card .img-wrapper::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(10,15,30,0.4),transparent 50%);pointer-events:none;}
.product-card .product-img-placeholder{width:100%;height:260px;background:linear-gradient(135deg,var(--glow),var(--glow2));display:flex;align-items:center;justify-content:center;font-size:3rem;color:rgba(56,189,248,0.25);border-bottom:1px solid var(--border);}

.product-info{padding:24px;flex:1;display:flex;flex-direction:column;}
.product-info h3{font-family:'Space Grotesk',sans-serif;font-size:1.15rem;font-weight:700;color:#fff;margin-bottom:8px;transition:.3s;}
.product-card:hover .product-info h3{color:var(--accent);}
.product-info .product-desc{color:var(--muted);font-size:.85rem;line-height:1.6;margin-bottom:16px;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.product-info .product-price{font-size:1.3rem;font-weight:800;margin-bottom:16px;
  background:linear-gradient(135deg,var(--gold),#f59e0b);-webkit-background-clip:text;-webkit-text-fill-color:transparent;}
.product-info .product-price del{color:var(--muted);font-size:.9rem;font-weight:400;margin-right:8px;-webkit-text-fill-color:var(--muted);}

/* ADD TO CART */
.add-to-cart-btn{width:100%;padding:14px;border:none;border-radius:14px;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff;font-size:.9rem;font-weight:700;cursor:pointer;transition:all .3s;
  display:flex;align-items:center;justify-content:center;gap:8px;
  box-shadow:0 8px 25px var(--glow);position:relative;overflow:hidden;}
.add-to-cart-btn::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,var(--accent2),var(--accent3));opacity:0;transition:.3s;}
.add-to-cart-btn:hover{transform:translateY(-2px);box-shadow:0 14px 40px var(--glow);}
.add-to-cart-btn:hover::before{opacity:1;}
.add-to-cart-btn span,.add-to-cart-btn i{position:relative;z-index:1;}
.add-to-cart-btn.added{background:linear-gradient(135deg,#22c55e,#16a34a)!important;pointer-events:none;}
.add-to-cart-btn.added::before{display:none;}

/* EMPTY STATE */
.empty-shop{text-align:center;padding:100px 20px;grid-column:1/-1;}
.empty-shop i{font-size:4rem;color:rgba(56,189,248,0.2);margin-bottom:20px;display:block;}
.empty-shop h2{font-family:'Space Grotesk',sans-serif;font-size:1.8rem;background:linear-gradient(135deg,#fff,var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:12px;}
.empty-shop p{color:var(--muted);font-size:1.05rem;}

/* CART DRAWER */
.cart-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(8px);opacity:0;visibility:hidden;transition:.3s;z-index:2000;}
.cart-overlay.active{opacity:1;visibility:visible;}
.cart-drawer{position:fixed;top:0;right:-460px;width:420px;height:100vh;height:100dvh;background:#0f1729;border-left:1px solid var(--border);box-shadow:-20px 0 60px rgba(0,0,0,.5);transition:.4s cubic-bezier(.4,0,.2,1);z-index:2001;display:flex;flex-direction:column;}
.cart-drawer.active{right:0;}
.cart-header{padding:24px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;}
.cart-header h2{font-size:1.3rem;font-weight:800;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;}
.cart-close{background:var(--card);border:1px solid var(--border);width:36px;height:36px;border-radius:10px;color:var(--muted);font-size:16px;cursor:pointer;transition:.3s;}
.cart-close:hover{background:rgba(239,68,68,0.15);color:#ef4444;}
.cart-items{flex:1;overflow-y:auto;padding:20px 24px;}
.cart-items::-webkit-scrollbar{width:4px;}.cart-items::-webkit-scrollbar-track{background:transparent;}.cart-items::-webkit-scrollbar-thumb{background:rgba(56,189,248,0.15);border-radius:4px;}
.cart-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--border);animation:cartSlide .3s ease;}
@keyframes cartSlide{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}
.cart-item-img{width:64px;height:64px;border-radius:12px;object-fit:cover;border:1px solid var(--border);flex-shrink:0;}
.cart-item-img-placeholder{width:64px;height:64px;border-radius:12px;background:linear-gradient(135deg,var(--glow),var(--glow2));display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:rgba(56,189,248,0.25);flex-shrink:0;}
.cart-item-details{flex:1;display:flex;flex-direction:column;gap:4px;}
.cart-item-details h4{font-size:.9rem;font-weight:700;color:#fff;line-height:1.3;}
.cart-item-details .item-price{font-size:.85rem;color:var(--gold);font-weight:600;}
.qty-controls{display:flex;align-items:center;gap:8px;margin-top:4px;}
.qty-btn{width:28px;height:28px;border-radius:8px;background:var(--card);border:1px solid var(--border);color:#fff;font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.2s;}
.qty-btn:hover{background:rgba(56,189,248,0.15);border-color:var(--border-hover);}
.qty-display{font-size:.9rem;font-weight:700;color:#fff;min-width:20px;text-align:center;}
.cart-item-remove{align-self:flex-start;background:none;border:none;color:var(--muted);font-size:14px;cursor:pointer;transition:.3s;padding:4px;}
.cart-item-remove:hover{color:#ef4444;}
.cart-empty{text-align:center;padding:50px 20px;}
.cart-empty i{font-size:3rem;color:rgba(56,189,248,0.15);margin-bottom:14px;display:block;}
.cart-empty p{color:var(--muted);font-size:.95rem;}
.cart-footer{margin-top:auto;padding:20px 100px 20px 24px;padding-bottom:calc(20px + env(safe-area-inset-bottom));border-top:1px solid var(--border);background:rgba(0,0,0,.2);}
.cart-totals{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;}
.cart-totals span{color:var(--muted);}
.cart-totals strong{font-size:1.3rem;font-weight:800;color:var(--gold);}
.checkout-btn{display:block;width:100%;padding:16px;margin-top:10px;border:none;border-radius:14px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;font-size:1rem;font-weight:700;cursor:pointer;transition:.3s;text-align:center;text-decoration:none;box-shadow:0 8px 25px var(--glow);}
.checkout-btn:hover{transform:translateY(-2px);box-shadow:0 14px 40px var(--glow);}
.continue-shopping{display:block;text-align:center;margin-top:10px;color:var(--muted);font-size:.85rem;cursor:pointer;background:none;border:none;width:100%;transition:.3s;}
.continue-shopping:hover{color:var(--accent);}

/* TOAST */
.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%) translateY(80px);background:linear-gradient(135deg,#22c55e,#16a34a);color:#fff;padding:14px 28px;border-radius:14px;font-weight:600;font-size:.9rem;box-shadow:0 20px 50px rgba(34,197,94,0.3);z-index:3000;opacity:0;transition:.4s cubic-bezier(.4,0,.2,1);pointer-events:none;}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

/* FOOTER */
.buy-footer{position:relative;z-index:2;text-align:center;padding:40px 20px;border-top:1px solid var(--border);}
.buy-footer p{color:var(--muted);font-size:13px;}
.buy-footer a{color:var(--accent);transition:.3s;}

/* SCROLL REVEAL */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .6s ease,transform .6s ease;}
.reveal.visible{opacity:1;transform:translateY(0);}

/* SPINNER */
.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,0.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite;}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes shimmer{0%{opacity:.4}50%{opacity:.8}100%{opacity:.4}}

/* RESPONSIVE */
@media(max-width:768px){.buy-nav-links{display:none;}.hamburger{display:flex;}.product-grid{grid-template-columns:1fr 1fr;}.cart-drawer{width:100% !important;right:-100% !important;height:100vh !important;height:100dvh !important;}.cart-drawer.active{right:0 !important;}.cart-footer{padding-right:85px !important;}.buy-hero h1{font-size:2rem;}}
@media(max-width:480px){.product-grid{grid-template-columns:1fr;}}