:root{--brand-covenant:#1a1614;--brand-copper:#a0622a;--brand-copper-dark:#8a5222;--bg-primary:#f9f6f0;--bg-secondary:#fff;--text-primary:#2d2723;--taupe:#9e948f;--border-light:#2d272314}.book-showcase{grid-template-columns:1fr 1fr;align-items:center;gap:60px;max-width:1200px;margin:120px auto 80px;padding:0 20px;display:grid}.book-cover-large{border-radius:4px;position:relative;overflow:hidden;box-shadow:0 25px 50px -12px #3d2b1f40}.book-cover-large img{width:100%;height:auto;display:block}.book-details h1{color:var(--brand-covenant);margin-bottom:10px;font-family:Cormorant Garamond,serif;font-size:3.5rem;line-height:1.1}.book-subtitle{color:var(--brand-copper);margin-bottom:30px;font-family:Cormorant Garamond,serif;font-size:1.4rem;font-style:italic}.book-description{color:var(--text-primary);margin-bottom:30px;font-size:1.05rem;line-height:1.7}.book-price{color:var(--brand-covenant);margin-bottom:30px;font-family:Cormorant Garamond,serif;font-size:2.5rem}.btn-book-primary{background:var(--brand-copper);color:#fff;letter-spacing:.2em;text-transform:uppercase;cursor:pointer;border:none;border-radius:4px;padding:1rem 2.4rem;font-family:Jost,sans-serif;font-size:.68rem;font-weight:500;text-decoration:none;transition:background .2s,transform .15s;display:inline-block}.btn-book-primary:hover{background:var(--brand-copper-dark);color:#fff;text-decoration:none;transform:translateY(-2px)}.book-features{border-top:1px solid var(--border-light);grid-template-columns:repeat(3,1fr);gap:30px;padding-top:50px;display:grid}.feature-item h4{color:var(--brand-covenant);margin-bottom:10px;font-family:Cormorant Garamond,serif;font-size:1.1rem}.feature-item p{color:var(--taupe);font-size:.95rem;line-height:1.5}.checkout-container{grid-template-columns:1fr 400px;gap:40px;max-width:1000px;margin:120px auto 80px;padding:0 20px;display:grid}.checkout-form-section{background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:12px;padding:40px;box-shadow:0 4px 20px #0000000a}.checkout-summary{background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:12px;align-self:start;padding:30px;position:sticky;top:100px;box-shadow:0 4px 20px #0000000a}.form-group{margin-bottom:20px}.form-group label{color:var(--text-primary);margin-bottom:8px;font-size:.9rem;font-weight:500;display:block}.form-group input{border:1px solid var(--border-light);background:var(--bg-primary);box-sizing:border-box;border-radius:6px;width:100%;padding:12px 15px;font-family:inherit;font-size:1rem;transition:border-color .2s}.form-group input:focus{border-color:var(--brand-copper);outline:none}.summary-total{border-top:1px solid var(--border-light);color:var(--brand-covenant);justify-content:space-between;margin-top:20px;padding-top:20px;font-size:1.3rem;font-weight:600;display:flex}.payment-btn{cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;gap:10px;width:100%;margin-bottom:15px;padding:15px;font-family:inherit;font-size:1.05rem;font-weight:500;transition:transform .2s,opacity .2s;display:flex}.payment-btn:hover{opacity:.92;transform:translateY(-2px)}.btn-stripe{color:#fff;background:#635bff}.btn-paypal{color:#000;background:#ffc439}.qty-selector{align-items:center;gap:15px;margin-bottom:20px;display:flex}.qty-btn{background:var(--bg-primary);border:1px solid var(--border-light);cursor:pointer;border-radius:4px;justify-content:center;align-items:center;width:36px;height:36px;font-size:1.2rem;transition:background .2s;display:flex}.qty-btn:hover{background:var(--border-light)}.success-wrapper{text-align:center;max-width:600px;margin:150px auto 100px;padding:0 20px}.success-icon{background:var(--bg-secondary);border:2px solid var(--brand-copper);width:80px;height:80px;color:var(--brand-copper);border-radius:50%;justify-content:center;align-items:center;margin:0 auto 30px;display:flex}@media (width<=900px){.book-showcase,.checkout-container{grid-template-columns:1fr;margin-top:100px}.book-features{grid-template-columns:1fr}}