.btt{position:fixed;left:18px;bottom:18px;z-index:55;display:inline-flex;align-items:center;gap:6px;min-height:48px;min-width:48px;padding:0 16px 0 14px;border-radius:999px;background:var(--forest,#0b2e1a);color:#fff;font-weight:700;font-size:.92rem;text-decoration:none;box-shadow:0 8px 24px #0b2e1a47;border:2px solid rgba(255,255,255,.14);opacity:0;transform:translateY(12px);pointer-events:none;visibility:hidden;transition:opacity .25s ease,transform .25s ease,background .2s,visibility 0s linear .25s}.btt.on{opacity:1;transform:none;pointer-events:auto;visibility:visible;transition-delay:0s}.btt:hover{background:var(--orange,#f58214);color:#0b2e1a}.btt:focus-visible{outline:3px solid var(--orange,#f58214);outline-offset:3px}.btt svg{flex:none}main h1[tabindex="-1"]:focus{outline:none}@media(max-width:560px){.btt{left:12px;bottom:12px;padding:0;width:52px;height:52px;justify-content:center}.btt span{display:none}}@media(prefers-reduced-motion:reduce){.btt{transition:none;transform:none}}@media print{.btt{display:none!important}}