.cfb-classic {
  width: 56px; height: 56px;
  border: 0; border-radius: 50%;
  background: linear-gradient(135deg, #7c6cff, #a78bfa);
  color: #fff;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 16px rgba(124,108,255,0.35);
  transition: transform 0.25s cubic-bezier(0.34,1.56,0.64,1), box-shadow 0.25s, filter 0.2s;
}
.cfb-classic:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(124,108,255,0.5);
  filter: brightness(1.05);
}
.cfb-classic:active { transform: translateY(-1px); }
.cfb-classic:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
.cfb-classic svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2.5; stroke-linecap: round; }