.product-page{padding-top:5rem;padding-bottom:6rem}.product-back{display:inline-block;font-size:.7rem;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--text-secondary);text-decoration:none;margin-bottom:2.5rem;transition:color .2s ease}.product-back:hover{color:var(--text-primary)}.product-detail{display:grid;grid-template-columns:1fr 1fr;grid-gap:1px;gap:1px;background:rgba(0,0,0,.07);border:1px solid rgba(0,0,0,.07);border-radius:18px;overflow:hidden}.detail-preview{background:var(--bg-color);padding:3rem;display:flex;flex-direction:column;align-items:center;justify-content:space-between;min-height:520px}.detail-letter{font-size:14rem;font-weight:700;letter-spacing:-4px;color:var(--text-primary);font-family:Georgia,serif;line-height:1;margin:auto 0;-webkit-user-select:none;-moz-user-select:none;user-select:none}.detail-formats{display:flex;gap:.5rem;align-self:flex-start}.format-badge{font-size:.65rem;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:rgba(0,0,0,.35);border:1px solid rgba(0,0,0,.1);border-radius:100px;padding:.25rem .65rem}.detail-info{background:rgba(0,0,0,.015);padding:3rem;display:flex;flex-direction:column;gap:1.1rem}.detail-eyebrow{font-size:.7rem;font-weight:600;letter-spacing:2.5px;text-transform:uppercase;color:var(--text-secondary)}.detail-title{font-size:2.6rem;letter-spacing:-1.5px;line-height:1.05}.detail-price,.detail-title{font-weight:700;color:var(--text-primary)}.detail-price{font-size:1.5rem;letter-spacing:-.5px}.detail-divider{height:1px;background:rgba(0,0,0,.07)}.detail-description{font-size:.88rem;color:var(--text-secondary);line-height:1.75}.detail-features{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.5rem;flex:1 1}.detail-features li{font-size:.82rem;color:var(--text-secondary);display:flex;align-items:center;gap:.6rem}.detail-features li:before{content:"";display:block;width:14px;height:1px;background:rgba(0,0,0,.25);flex-shrink:0}.detail-btn{margin-top:auto;width:100%;padding:.85rem 1.5rem;border-radius:100px;font-size:.9rem;font-weight:600;background:var(--text-primary);color:var(--bg-color);border:none;cursor:pointer;position:relative;overflow:hidden;transition:opacity .2s ease}.detail-btn:hover{opacity:.85}.premium-glow:after{content:"";position:absolute;top:0;left:-100%;width:50%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);transform:skewX(-20deg);animation:shine 4s cubic-bezier(.19,1,.22,1) infinite}@keyframes shine{0%{left:-100%}20%{left:200%}to{left:200%}}@media (max-width:768px){.product-detail{grid-template-columns:1fr}.detail-preview{min-height:300px;padding:2rem}.detail-letter{font-size:8rem}.detail-info{padding:2rem}.detail-title{font-size:2rem}}