:root{--bg:#f6f7f8;--surface:#ffffff;--surface-soft:#f0f2f3;--text:#101214;--muted:#687078;--line:#e4e7e9;--dark:#111315;--accent:#16a085;--accent-dark:#0c7e69;--accent-soft:#e7f7f3;--radius:20px;--shadow:0 14px 40px rgba(16,18,20,0.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}button,input,select{font:inherit}a,button{-webkit-tap-highlight-color:transparent}img{display:block;max-width:100%}a{color:inherit}.container{width:min(1180px,calc(100% - 40px));margin:0 auto}.section{padding:90px 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auto}.product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.checkout-shell{grid-template-columns:1fr}.footer-grid{grid-template-columns:2fr 1fr 1fr}}@media (max-width:700px){body{padding-bottom:78px}.container{width:min(100% - 28px,1180px)}.section{padding:62px 0}.topbar-inner{min-height:62px;width:calc(100% - 28px)}.brand{font-size:23px}.top-actions .nav-link,.top-actions .small-btn{display:none}.hero{padding:48px 0 58px}.hero-grid{gap:34px}.hero h1{font-size:clamp(48px,15vw,70px)}.hero-text{font-size:17px}.hero-actions{display:grid;grid-template-columns:1fr 1fr}.hero-actions .btn{padding:0 13px}.hero-proof{grid-template-columns:1fr;gap:14px;margin-top:35px}.hero-proof div{padding-bottom:10px;border-bottom:1px solid var(--line)}.hero-product img{height:420px}.safety-badge{left:5px}.trust-grid{grid-template-columns:1fr 1fr;row-gap:15px}.trust-grid div{border-right:0;padding:5px}.section-heading{display:block}.section-heading 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1fr}.footer-grid>div:first-child{grid-column:1/-1}.mobile-nav{position:fixed;z-index:200;right:0;bottom:0;left:0;height:72px;display:grid;grid-template-columns:1fr 1fr 68px 1fr 1fr;align-items:center;padding:0 8px env(safe-area-inset-bottom);border-top:1px solid var(--line);background:rgba(255,255,255,.97);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.mobile-nav-item{display:flex;flex-direction:column;gap:3px;align-items:center;color:#70777c;font-size:9px;font-weight:800;text-decoration:none}.mobile-nav-item span{color:#43494d;font-size:20px}.mobile-nav-item.active,.mobile-nav-item.active span{color:var(--accent-dark)}.mobile-sell-button{width:54px;height:54px;display:grid;place-items:center;justify-self:center;margin-top:-24px;border:5px solid var(--bg);border-radius:50%;color:#fff;background:var(--dark);font-size:29px;font-weight:300;text-decoration:none}}@media (max-width:430px){.hero-actions{grid-template-columns:1fr}.product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.heart-button{width:32px;height:32px;font-size:18px}.condition-badge{bottom:8px;left:8px;padding:5px 7px;font-size:9px}.product-footer{display:block}.buy-btn{width:100%;margin-top:10px}.sell-steps{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:32px 20px}}