.back-to-top{z-index:120;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);color:#ffffffe0;letter-spacing:.06em;cursor:pointer;background:#0a1315e6;border:1px solid #d8ff1961;border-radius:22px;flex-direction:column;justify-content:center;align-items:center;gap:7px;width:42px;min-height:106px;padding:10px 0;font-size:10px;font-weight:700;transition:transform .2s,background .2s;display:flex;position:fixed;top:52%;right:6px;box-shadow:0 12px 30px #0000003d}.back-to-top svg{width:18px;height:18px;color:var(--acid)}.back-to-top span{writing-mode:vertical-rl;line-height:1.1}.back-to-top:hover{border-color:var(--acid);background:#162325;transform:translateY(-3px)}@media (max-width:768px){.back-to-top{width:38px;min-height:96px;font-size:9px;top:58%;right:4px}}