:root{--shop-navy:#173d7a;--shop-gold:#f2a900;--shop-ink:#172033;--shop-soft:#f5f7fb}.shop-page{background:var(--shop-soft);color:var(--shop-ink);min-height:60vh;padding:42px 0 64px}.shop-container{width:min(1160px,calc(100% - 32px));margin:auto}.shop-hero{background:linear-gradient(135deg,#102e60,#24599e);color:#fff;border-radius:20px;padding:44px;margin-bottom:32px;display:flex;justify-content:space-between;align-items:center;gap:24px}.shop-hero h1{font-size:clamp(32px,5vw,52px);margin:0 0 10px;color:#fff}.shop-hero p{font-size:18px;max-width:650px;margin:0}.shop-cart-link,.shop-btn{background:var(--shop-gold);color:#152540!important;border:0;border-radius:8px;padding:12px 20px;font-weight:700;display:inline-block;cursor:pointer;text-align:center}.shop-btn.secondary{background:#fff;border:1px solid #ccd4e1}.shop-btn:disabled{opacity:.55;cursor:not-allowed}.book-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.book-card{background:#fff;border-radius:14px;box-shadow:0 6px 24px rgba(19,41,75,.09);overflow:hidden;display:flex;flex-direction:column}.book-card-image{aspect-ratio:4/3;background:#edf1f7;display:flex;align-items:center;justify-content:center;overflow:hidden}.book-card-image img{width:100%;height:100%;object-fit:contain;padding:14px}.book-placeholder{font-size:54px;color:#8b98ab}.book-card-body{padding:20px;display:flex;flex-direction:column;flex:1}.book-card h2{font-size:20px;line-height:1.35;margin:0 0 8px}.book-card h2 a{color:var(--shop-ink)}.book-meta{color:#657085;font-size:14px;margin-bottom:12px}.book-price{font-size:22px;font-weight:800;color:var(--shop-navy);margin-top:auto}.book-price del{color:#8993a2;font-size:15px;font-weight:400;margin-left:8px}.book-actions{display:flex;gap:9px;margin-top:16px;flex-wrap:wrap}.book-actions .shop-btn{flex:1;padding:10px}.shop-alert{padding:16px;border-radius:8px;background:#fff4d6;border:1px solid #f1d278;margin:16px 0}.product-layout{display:grid;grid-template-columns:minmax(280px,.85fr) minmax(320px,1.15fr);gap:44px;background:#fff;padding:32px;border-radius:16px}.product-main-image{width:100%;aspect-ratio:1;object-fit:contain;background:#f5f6f8;border-radius:12px;padding:16px}.product-thumbs{display:flex;gap:10px;margin-top:12px;overflow:auto}.product-thumbs button{border:2px solid transparent;background:#fff;padding:3px;border-radius:7px}.product-thumbs img{width:68px;height:68px;object-fit:contain}.product-thumbs button.active{border-color:var(--shop-navy)}.product-copy h1{font-size:34px;margin-top:0}.product-features{padding-left:20px}.product-specs{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:#dfe4ec;border:1px solid #dfe4ec;margin:22px 0}.product-specs div{background:#fff;padding:12px}.qty-row{display:flex;align-items:center;gap:12px;margin:20px 0}.qty-input{width:78px;padding:10px;border:1px solid #c9d0dc;border-radius:7px}.cart-row{display:grid;grid-template-columns:80px 1fr 100px 120px 40px;gap:16px;align-items:center;background:#fff;padding:16px;border-bottom:1px solid #e5e8ed}.cart-row img{width:70px;height:70px;object-fit:contain}.cart-summary{margin:24px 0 0 auto;max-width:400px;background:#fff;padding:22px;border-radius:12px}.checkout-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:28px}.checkout-card{background:#fff;border-radius:12px;padding:24px}.shop-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.shop-field.full{grid-column:1/-1}.shop-field label{display:block;font-weight:700;margin-bottom:6px}.shop-field input,.shop-field textarea{width:100%;padding:11px;border:1px solid #c9d0dc;border-radius:7px}.success-card{max-width:680px;margin:auto;text-align:center;background:#fff;border-radius:16px;padding:48px}.shop-cart-count{display:inline-flex;min-width:20px;height:20px;align-items:center;justify-content:center;border-radius:20px;background:#f2a900;color:#172033;font-size:11px;padding:0 5px}@media(max-width:800px){.book-grid{grid-template-columns:repeat(2,1fr)}.product-layout,.checkout-layout{grid-template-columns:1fr}.shop-hero{padding:28px;align-items:flex-start;flex-direction:column}.cart-row{grid-template-columns:60px 1fr 75px}.cart-line-total{display:none}.cart-remove{grid-column:3}.product-copy h1{font-size:28px}}@media(max-width:520px){.book-grid{grid-template-columns:1fr}.shop-form-grid{grid-template-columns:1fr}.shop-field.full{grid-column:auto}.product-layout{padding:18px}.book-actions{flex-direction:column}}