.container{max-width:480px;padding:16px 16px 100px;display:flex;flex-direction:column;min-height:calc(100dvh - 100px);min-height:calc(100vh - 100px)}.book-image{width:55%;max-width:220px;margin:0 auto 16px;border-radius:16px;overflow:hidden;box-shadow:0 10px 30px var(--shadow);aspect-ratio:2/3}.book-image img{width:100%;height:100%;border-radius:16px;object-fit:cover;display:block}.book-info{text-align:center;margin-bottom:16px}.book-info h1{font-size:20px;margin-bottom:6px;line-height:1.2}.book-info p{font-size:13px;color:var(--text-muted);margin:2px 0}.book-info .price{font-size:18px;font-weight:600;color:var(--accent);margin-top:8px}.book-meta{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:16px}.meta-chip{display:inline-flex;align-items:center;font-size:11px;font-weight:500;padding:4px 10px;border-radius:20px;background:#ffffff0f;border:1px solid rgba(255,255,255,.1);color:var(--text-muted);white-space:nowrap}.description{font-size:13px;color:var(--text-main);line-height:1.6;flex:1;overflow-y:auto}.description p{margin-bottom:8px}.description p:last-child{margin-bottom:0}.description.collapsed{display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}.read-more-btn{background:none;border:none;color:var(--accent);font-size:13px;font-weight:500;padding:4px 0;cursor:pointer}.read-more-btn:active{opacity:.7}.format-picker{display:flex;gap:8px;margin-top:12px;justify-content:center}.picker-option{border-radius:10px;border:1px solid rgba(255,255,255,.15);background:#ffffff0d;cursor:pointer;transition:all .15s ease;display:flex;flex-direction:column;align-items:center}.picker-option:active:not(:disabled){transform:scale(.97)}.format-option{flex:1;max-width:160px;padding:10px 14px;color:var(--text-muted);gap:2px}.format-option:hover:not(:disabled){border-color:#ffffff4d;background:#ffffff14}.format-option.active{border-color:var(--accent);background:#d4af371a;color:var(--text-main)}.format-option:disabled{opacity:.5;cursor:not-allowed}.format-label{font-size:13px;font-weight:600}.format-price{font-size:12px}.ownership-badge{display:inline-flex;align-items:center;gap:6px;background:#d4af3726;border:1px solid rgba(212,175,55,.4);color:#d4af37;font-size:11px;font-weight:600;padding:4px 10px;border-radius:20px;margin-top:8px}.ownership-badge svg{width:12px;height:12px}.collection-text{color:#d4af37;font-size:14px;font-weight:500;margin-top:6px}.sticky-button.primary{background:linear-gradient(135deg,#d4af37,#f6e7c8,#d4af37);color:var(--bg-dark);font-weight:700}.payment-modal-title{margin-bottom:16px;font-size:18px}.payment-methods{display:flex;flex-direction:column;gap:10px}.payment-method-option{width:100%;padding:16px;color:var(--text-main);gap:4px}.payment-method-option:hover:not(:disabled){border-color:var(--accent);background:#d4af371a}.payment-method-label{font-size:15px;font-weight:600}.payment-method-desc{font-size:12px;color:var(--text-muted)}@media (min-height: 700px){.book-image{width:65%;max-width:260px;margin-bottom:24px}.book-info{margin-bottom:24px}.book-info h1{font-size:24px;margin-bottom:10px}}