.bkr{z-index:40;font-family:var(--font-mono);letter-spacing:.24em;text-transform:uppercase;color:var(--color-muted);writing-mode:vertical-rl;align-items:center;gap:.7rem;font-size:.64rem;text-decoration:none;transition:color .3s,gap .3s;display:inline-flex;position:fixed;top:50%;left:clamp(.4rem,2vw,1.35rem);transform:translateY(-50%)rotate(180deg)}.bkr span{color:var(--color-primary)}.bkr:hover,.bkr:focus-visible{color:var(--color-primary);outline:none;gap:.95rem}.bkr--top{top:clamp(5rem,13vh,9rem);transform:rotate(180deg)}@media (max-width:720px){.bkr{letter-spacing:.18em;font-size:.58rem}}