.erians-sidebar-cta {
  background: #0f1115;
  border-radius: 18px;
  padding: 22px;
  text-align: center;
  box-shadow: 0 0 40px rgba(0,0,0,0.4);
  margin-bottom: 24px;
}

.erians-sidebar-logo {
  max-width: 130px;
  margin-bottom: 14px;
}

.erians-sidebar-cta h3 {
  color: #fff;
  margin-bottom: 8px;
}

.erians-sidebar-cta p {
  color: #b8c0cc;
  font-size: 14px;
  margin-bottom: 18px;
}

.erians-btn-main {
  display: block;
  padding: 14px 18px;
  border-radius: 12px;
  font-weight: 700;
  text-decoration: none;
  text-align: center;
  background: linear-gradient(135deg, #ff4d8d, #3fd0c9);
  color: #000;
  transition: transform .15s ease, box-shadow .15s ease;
}

.erians-btn-main:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(63,208,201,0.35);
}