.diem-sidebar {
  background-color: #f7fdfc;
  padding: 30px;
  border-radius: 12px;
  font-family: system-ui, sans-serif;
  color: #333;
  box-shadow: 0 0 15px rgba(0,0,0,0.05);
}

.diem-sidebar .sidebar-block {
  margin-bottom: 30px;
}

.diem-sidebar h3 {
  font-size: 1.2rem;
  color: #009688;
  margin-bottom: 10px;
}

.diem-sidebar ul {
  list-style-type: disc;
  margin-left: 20px;
  font-size: 0.95rem;
}

.diem-sidebar p, 
.diem-sidebar li {
  font-size: 0.95rem;
  color: #444;
}

.diem-sidebar a {
  color: #00796B;
  text-decoration: none;
  font-weight: bold;
}

.diem-sidebar .whatsapp-btn {
  display: inline-block;
  margin-top: 10px;
  background-color: #25D366;
  color: white;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: bold;
}

.diem-sidebar .testimonials blockquote {
  font-size: 0.9rem;
  color: #444;
  border-left: 3px solid #ccc;
  margin: 10px 0;
  padding-left: 10px;
}

.diem-sidebar .testimonials span {
  color: #777;
  display: block;
  margin-top: 5px;
}