.itellico-btn {
  padding: 25px 30px;
  background: linear-gradient(180deg, rgba(204, 255, 77, 1) 6%, rgba(176, 214, 64, 1) 100%);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  letter-spacing: 2px;
  color: #212f3d;
  font-weight: 500;
  transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease;
  will-change: transform;
}
.itellico-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(33,47,61,.25); filter: brightness(1.05); }
.itellico-btn:active { transform: translateY(0px); box-shadow: 0 6px 14px rgba(33,47,61,.18); }
.itellico-btn:focus-visible { outline: 3px solid rgba(204,255,77,.65); outline-offset: 3px; }