:root{--blue:#1677ff;--ink:#07101d;--muted:#657287;--line:#dce4ef;--soft:#f3f7fc;--white:#fff}*{box-sizing:border-box}body{margin:0;background:#fff;color:var(--ink);font-family:Inter,Arial,sans-serif}a{text-decoration:none;color:inherit}.shop-wrap{width:min(1180px,calc(100% - 40px));margin:auto}.shop-nav{position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line);background:rgba(255,255,255,.94);backdrop-filter:blur(14px)}.shop-nav__in{height:74px;display:flex;align-items:center;justify-content:space-between}.shop-brand{display:flex;align-items:center;gap:10px;font:700 18px 'Space Grotesk',sans-serif}.shop-brand img{width:34px}.shop-nav__links{display:flex;align-items:center;gap:22px;font-size:13px;font-weight:700}.cart-link{padding:10px 14px;border-radius:999px;background:var(--ink);color:#fff}.store-hero{padding:100px 0 68px;background:radial-gradient(circle at 80% 10%,#ddebff,transparent 28%),linear-gradient(180deg,#f8fbff,#fff)}.eyebrow{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.store-hero h1,.product-copy h1{max-width:900px;margin:17px 0 20px;font:700 clamp(45px,7vw,84px)/.95 'Space Grotesk',sans-serif;letter-spacing:-.06em}.store-hero p{max-width:650px;color:var(--muted);font-size:18px;line-height:1.7}.store-filter{display:flex;flex-wrap:wrap;gap:8px;margin:40px 0 25px}.store-filter button{padding:9px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;cursor:pointer}.store-filter button.active{border-color:var(--blue);background:var(--blue);color:#fff}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding-bottom:100px}.product-card{overflow:hidden;border:1px solid var(--line);border-radius:22px;background:#fff;transition:.25s}.product-card:hover{transform:translateY(-5px);box-shadow:0 24px 65px -42px #0a3c78}.book-cover{position:relative;display:flex;min-height:315px;padding:28px;flex-direction:column;justify-content:space-between;color:#fff;background:linear-gradient(145deg,var(--accent),#08111e)}.book-cover:after{content:'';position:absolute;inset:12px;border:1px solid rgba(255,255,255,.2);border-radius:10px}.book-cover small,.book-cover strong{position:relative;z-index:1}.book-cover small{font-size:10px;letter-spacing:.18em}.book-cover strong{max-width:270px;font:700 29px/1.02 'Space Grotesk',sans-serif}.product-card__body{padding:22px}.product-card__body span{color:var(--blue);font-size:11px;font-weight:800}.product-card__body h2{margin:8px 0;font-size:21px}.product-card__body p{min-height:63px;color:var(--muted);font-size:14px;line-height:1.5}.product-card__foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px}.product-card__foot b{font-size:23px}.btn-shop{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 18px;border:0;border-radius:10px;background:var(--blue);color:#fff;font-weight:800;cursor:pointer}.btn-shop.dark{background:var(--ink)}.product-hero{padding:80px 0;background:var(--soft)}.product-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px;align-items:center}.product-layout .book-cover{min-height:560px;border-radius:18px;box-shadow:0 35px 80px -45px #0b3972}.product-layout .book-cover strong{font-size:48px}.product-copy h1{font-size:clamp(42px,6vw,72px)}.product-copy>p{color:var(--muted);font-size:18px;line-height:1.7}.product-meta{display:flex;gap:9px;flex-wrap:wrap;margin:20px 0}.product-meta span{padding:8px 11px;border-radius:999px;background:#e7eef7;color:#35445a;font-size:12px;font-weight:700}.buy-row{display:flex;align-items:center;gap:18px;margin-top:28px}.buy-row strong{font:700 36px 'Space Grotesk'}.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:60px;padding:90px 0}.product-detail h2,.recommend h2{font:700 36px 'Space Grotesk';letter-spacing:-.04em}.check-list{list-style:none;padding:0}.check-list li{padding:12px 0;border-bottom:1px solid var(--line);color:#405066}.check-list li:before{content:'✓';margin-right:10px;color:var(--blue);font-weight:900}.recommend{padding:75px 0;background:var(--soft)}.recommend .product-grid{padding-bottom:0}.checkout{padding:70px 0 100px;background:var(--soft);min-height:calc(100vh - 74px)}.checkout-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:25px;align-items:start}.checkout-card{padding:28px;border:1px solid var(--line);border-radius:18px;background:#fff}.checkout-card h1,.checkout-card h2{margin-top:0;font-family:'Space Grotesk'}.checkout-form{display:grid;gap:14px}.checkout-form label{display:grid;gap:7px;color:#425067;font-size:13px;font-weight:700}.checkout-form input,.checkout-form select,.checkout-form textarea{width:100%;padding:13px;border:1px solid var(--line);border-radius:9px;background:#fff;font:inherit}.form-two{display:grid;grid-template-columns:1fr 1fr;gap:12px}.pay-choice{display:grid;grid-template-columns:1fr 1fr;gap:10px}.pay-choice label{display:block;padding:15px;border:1px solid var(--line);border-radius:10px;cursor:pointer}.pay-choice label:has(input:checked){border-color:var(--blue);background:#edf5ff}.pay-choice input{width:auto;margin-right:8px}.bank-box{padding:16px;border-radius:10px;background:#f0f5fb;color:#405066;font-size:13px;line-height:1.7}.cart-item{display:grid;grid-template-columns:1fr auto;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}.cart-item small{display:block;color:var(--muted);margin-top:5px}.checkout-total{display:flex;justify-content:space-between;padding-top:20px;font-size:22px}.success-box{text-align:center;padding:55px 25px}.success-box i{display:grid;place-items:center;width:70px;height:70px;margin:0 auto 20px;border-radius:50%;background:#dff8e9;color:#118a4b;font-size:30px;font-style:normal}.shop-footer{padding:30px 0;background:var(--ink);color:#9caabd;text-align:center;font-size:12px}@media(max-width:850px){.product-grid{grid-template-columns:1fr 1fr}.product-layout,.checkout-grid{grid-template-columns:1fr}.product-layout .book-cover{max-width:520px}.product-detail{grid-template-columns:1fr}.shop-nav__links a:not(.cart-link){display:none}}@media(max-width:560px){.shop-wrap{width:min(100% - 24px,1180px)}.product-grid{grid-template-columns:1fr}.form-two,.pay-choice{grid-template-columns:1fr}.store-hero{padding:70px 0 45px}.product-hero{padding:45px 0}.product-layout .book-cover{min-height:430px}.buy-row{align-items:flex-start;flex-direction:column}}