:root{--cta:#7c5cff;--ink:#0b0b10;--fg:#eaf2ff}
.by-cta{position:fixed;right:20px;bottom:20px;z-index:9999;display:flex;gap:10px;align-items:center;background:linear-gradient(135deg,var(--cta),#51ffe7);color:var(--ink);padding:12px 16px;border-radius:999px;box-shadow:0 10px 40px rgba(124,92,255,.35);text-decoration:none;font-weight:700;letter-spacing:.2px}
.by-cta:hover{transform:translateY(-1px)}
.by-cta .dot{width:10px;height:10px;border-radius:50%;background:#fff;box-shadow:0 0 12px #fff}
@media (max-width:720px){.by-cta{left:20px;right:20px;justify-content:center}}