.btn:hover {
  background: rgba(255,255,255,0.06);
  transform: translateY(-2px);
}

.btn.primary {
  background: #E53935;
  border-color: rgba(255, 255, 255, 0.24);
  color: #fff;
}

.btn.primary:hover {
  filter: brightness(1.15);
  transform: translateY(-4px);
}

.btn{ display:inline-flex; gap: 8px; align-items:center; padding: 10px 14px; border-radius: 12px; border: 1px solid rgba(255,255,255,0.16); transition: background .2s ease, border-color .2s ease, transform .18s ease; }

.btn-contrast{ border: 1px solid transparent; }

.btn-xl{ padding: clamp(14px, 2.4vw, 20px) clamp(16px, 3vw, 28px); font-size: clamp(16px, 1.4vw, 18px); border-radius: 16px; }

body:not(.light) .contact-overlay .btn-contrast{ background: #fff; color: #000; }

body:not(.light) .contact-overlay .btn-contrast:hover{ transform: translateY(-3px); }

body.light .contact-overlay .btn-contrast{ background: #fff; color: #000; }

body.light .contact-overlay .btn-contrast:hover{ transform: translateY(-3px); }