.side-buttons{position:fixed;right:18px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:10px;z-index:1000}.side-btn{position:relative;display:flex;align-items:center;justify-content:center;width:54px;min-height:54px;border-radius:18px;color:#fff;text-decoration:none;cursor:pointer;box-shadow:0 24px 80px rgba(0,0,0,.38)}.side-btn span{display:none}.side-btn-buy{display:none!important;background:linear-gradient(135deg,#7c3aed,#06b6d4)}.side-btn-contact{background:linear-gradient(135deg,#059669,#22d3ee);outline:none}.qr-popup{display:none;position:absolute;right:66px;top:50%;transform:translateY(-50%);width:196px;padding:14px;border-radius:20px;text-align:center;background:rgba(15,23,42,.92);border:1px solid rgba(34,211,238,.24);box-shadow:0 24px 80px rgba(0,0,0,.38)}.qr-popup img{display:block;width:166px;height:166px;object-fit:contain;border-radius:14px;background:#fff}.qr-popup p{margin-top:8px;color:#dbeafe;font-size:12px;line-height:1.4}.side-btn-contact:hover .qr-popup,.side-btn-contact:focus .qr-popup,.side-btn-contact:focus-within .qr-popup{display:block}@media (max-width:640px){.side-buttons{right:10px}.qr-popup{right:calc(100% + 12px);width:min(196px,calc(100vw - 86px));max-width:196px}.qr-popup img{width:min(166px,100%);height:auto;margin:0 auto}}