:root{--bg:#f6f8fb;--card:#fff;--muted:#6b7280;--accent:#06131c;--accent-2:#ff6b6b;--glass:rgba(6,19,28,0.04);--radius:14px;--shadow:0 8px 28px rgba(2,6,23,0.08);font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--accent);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.container{max-width:1200px;margin:28px auto;padding:24px}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.brand{display:flex;align-items:center;gap:12px}.brand img{width:48px;height:48px;border-radius:10px}.brand h1{font-size:18px;margin:0}.navlinks a{margin:0 10px;color:var(--muted);font-weight:600}.product-grid{display:grid;grid-template-columns:520px 1fr;gap:28px}.gallery{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}.main-image{height:420px;border-radius:12px;overflow:hidden;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,#eef3f8,#fff)}.main-image img{max-width:100%;max-height:100%;object-fit:contain}.thumbs{display:flex;gap:10px;margin-top:12px}.thumb{width:78px;height:58px;border-radius:8px;overflow:hidden;cursor:pointer;border:2px solid transparent}.thumb img{width:100%;height:100%;object-fit:cover}.thumb.active{border-color:var(--accent)}.info{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;display:flex;flex-direction:column;gap:12px}.info h2{margin:0;font-size:22px}.price-row{display:flex;align-items:center;gap:18px}.price{font-size:20px;font-weight:700}.oldprice{font-size:13px;color:var(--muted);text-decoration:line-through}.rating{color:#f59e0b}.product-badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:6px}.badge{background:var(--glass);padding:8px 12px;border-radius:999px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:8px}.desc{color:var(--muted);margin-top:6px}.specs{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:14px}.spec{background:#fbfdff;border-radius:10px;padding:10px;border:1px solid rgba(6,19,28,0.04)}.spec strong{display:block}.actions{display:flex;gap:12px;margin-top:16px}.btn{padding:12px 18px;border-radius:12px;border:0;cursor:pointer;font-weight:700}.btn-primary{background:var(--accent);color:#fff}.btn-outline{background:transparent;border:1px solid rgba(6,19,28,0.08)}.sticky-buy{position:fixed;left:50%;transform:translateX(-50%);bottom:18px;background:linear-gradient(180deg,#fff,#fbfdff);padding:14px 18px;border-radius:12px;box-shadow:0 12px 36px rgba(2,6,23,0.12);display:flex;align-items:center;gap:14px;width:min(980px,96%);z-index:1200}.sticky-buy .small{font-size:13px;color:var(--muted)}.reviews{margin-top:22px;background:var(--card);padding:18px;border-radius:12px;box-shadow:var(--shadow)}.review-item{border-top:1px solid rgba(2,6,23,0.04);padding:12px 0}.review-item:first-child{border-top:0}.related{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}.card{background:var(--card);padding:12px;border-radius:12px;box-shadow:0 6px 18px rgba(2,6,23,0.04);text-align:center}.footer{text-align:center;padding:40px 20px;background:#06131c;color:#fff;margin-top:60px}.topbar{display:flex;align-items:center;justify-content:space-between;padding:15px 20px;background:#fff;position:sticky;top:0;z-index:999}.navlinks a{margin:0 12px;font-weight:600;color:#06131c;text-decoration:none}.hamburger{display:none;cursor:pointer;font-size:24px;color:#06131c;padding:5px}.cart-icon{position:relative;margin-left:20px;font-size:20px;color:#06131c}.cart-badge{position:absolute;top:-8px;right:-10px;background:red;color:#fff;padding:2px 6px;border-radius:50%;font-size:12px;font-weight:700}.user-area{position:relative;margin-left:20px;cursor:pointer}.user-icon{font-size:24px;color:#06131c}.user-dropdown{position:absolute;top:35px;right:0;background:#fff;padding:10px 0;border-radius:8px;display:none;box-shadow:0 4px 12px rgba(0,0,0,.15);width:150px}.user-dropdown a{display:block;padding:10px 15px;color:#06131c;text-decoration:none}.user-dropdown a:hover{background:#eee}.right-icons{display:flex;align-items:center}@media(max-width:980px){.product-grid{grid-template-columns:1fr}.main-image{height:360px}.sticky-buy{width:calc(100% - 32px)}}@media(max-width:768px){.navlinks{display:none;flex-direction:column;background:#fff;width:100%;position:absolute;top:70px;left:0;padding:10px 0;box-shadow:0 5px 15px rgba(0,0,0,.2)}.navlinks a{padding:12px 20px;display:block}.hamburger{display:block}}@media(max-width:560px){.main-image{height:300px}.thumb{width:62px;height:48px}.related{grid-template-columns:repeat(2,1fr)}}