:root{--navy:#123d2b;--blue:#237447;--line:#dce8df;--bg:#f5f8f4;color:#203b2c}
header{background:#123d2b;border-bottom:3px solid #79ad72}.brand{font-size:1.25rem;letter-spacing:-.04em}
.btn,.pill{border-radius:12px;min-height:44px}.btn:hover{filter:brightness(.92)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #4d9561;outline-offset:3px}
.store-hero{background:linear-gradient(120deg,#123d2b,#237447 65%,#688c45);border:0;border-radius:24px;padding:44px;box-shadow:0 12px 30px #123d2b18}.store-hero p{max-width:650px;line-height:1.65}.hero-point{font-weight:600}
.grade-title{background:linear-gradient(90deg,#e1eddf,#f5f8f4)}.system-chip,.volume-mark{background:#123d2b}.book-visual{background:linear-gradient(145deg,#edf3e9,#fff)}.sae .provider{color:#237447}.card{border-radius:20px}.card .body{padding:18px}.card h3{line-height:1.45}.panel{box-shadow:0 5px 22px #123d2b06}.muted{color:#5b6d60}
.floating-cart{position:fixed;right:24px;bottom:calc(24px + env(safe-area-inset-bottom));z-index:30;display:flex;align-items:center;gap:12px;padding:17px 22px;border:1px solid #ffffff50;border-radius:50px;background:#174e33;color:white;box-shadow:0 8px 28px #123d2b40;font-weight:750}.floating-cart:hover{background:#237447}.cart-count{display:grid;place-items:center;min-width:28px;height:28px;padding:0 7px;background:#e7f5d9;color:#123d2b;border-radius:50px}.store-page .page{padding-bottom:120px}
.cart-heading{margin:8px 0 28px}.eyebrow{color:#39734c;font-size:.75rem;letter-spacing:.08em;font-weight:750;text-transform:uppercase}.cart-heading h1{font-size:clamp(2rem,4vw,2.8rem);margin:8px 0;letter-spacing:-.04em}.cart-layout{display:grid;grid-template-columns:minmax(0,1fr) 350px;gap:24px;align-items:start}.cart-items{display:grid;gap:16px;min-width:0}.cart-item{display:grid;grid-template-columns:76px minmax(0,1fr) auto;gap:20px;align-items:start;padding:24px;border-radius:20px}.cart-book{height:96px;border-radius:4px 12px 12px 4px;background:linear-gradient(135deg,#477e53,#163e2c);box-shadow:-4px 4px 0 #d4e3cc;color:white;display:grid;place-items:center;font-size:.75rem;font-weight:700;border-left:5px solid #8bab77}.cart-item h2{font-size:1.08rem;margin:7px 0;overflow-wrap:anywhere}.cart-item p{font-size:.88rem;margin:8px 0 16px}.cart-quantity{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.cart-quantity label{font-size:.8rem}.cart-quantity input{width:68px;padding:9px;border:1px solid #b6cbbd;border-radius:10px;min-height:44px}.btn-secondary{background:#e8f1e6;color:#235339;font-size:.8rem}.cart-item-total{text-align:right;display:grid;gap:8px}.cart-item-total>span{font-size:.8rem}.cart-item-total>strong{font-size:1.1rem;white-space:nowrap}.remove-item{border:0;background:#fff1ef;color:#a52b20;border-radius:9px;padding:10px 12px;min-height:44px;cursor:pointer;font-size:.8rem;margin-top:10px}.remove-item:hover{background:#ffe0dc}.continue-shopping{color:#285f3d;font-weight:700;padding:12px 0}.cart-summary{padding:28px;border-radius:22px;position:sticky;top:24px}.cart-summary h2{margin:9px 0 25px;font-size:1.4rem}.summary-line{display:flex;justify-content:space-between;gap:16px;font-size:.9rem;margin:18px 0}.summary-total{border-top:1px solid var(--line);padding-top:22px;align-items:center}.summary-total strong{font-size:1.5rem;white-space:nowrap}.cart-savings{padding:16px;background:#edf5e7;border-radius:12px;color:#285b34;font-size:.87rem;line-height:1.5}.cart-savings p{margin:7px 0 0;font-size:.8rem}.checkout-button{display:block;text-align:center;margin-top:24px;padding:16px}.pickup-note{font-size:.8rem;color:#5b6d60;text-align:center;line-height:1.7;margin:16px 0 0}.empty-cart{text-align:center;padding:60px 20px}.empty-cart-icon{display:grid;place-items:center;margin:auto;width:80px;height:80px;border-radius:50%;background:#e8f1e6;color:#237447}.empty-cart-icon svg{width:36px;height:36px}.empty-cart .btn{margin-top:15px}
@media(max-width:960px){.cart-layout{grid-template-columns:1fr}.cart-summary{position:static}.cart-item{grid-template-columns:65px minmax(0,1fr) auto}}
@media(max-width:540px){.store-hero{padding:26px}.cart-item{padding:18px;grid-template-columns:52px minmax(0,1fr);gap:16px}.cart-book{height:76px;font-size:.65rem}.cart-item-total{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:12px;flex-wrap:wrap}.remove-item{margin:0}.cart-item-total>span{display:none}.cart-summary{padding:22px}.floating-cart{right:14px;bottom:calc(14px + env(safe-area-inset-bottom));padding:13px 17px}}
@media(prefers-reduced-motion:reduce){.card,.edition-cover,.book-visual img{transition:none}.card:hover{transform:none}}
@media print{.floating-cart{display:none!important}}