/* Base */
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background-color: #0b0d10; /* dark background to match logo glow */
  color: #e0e0e0;
  margin: 0;
  padding: 0;
}

/* Header */
header {
  background-color: #0b0d10;
  padding: 20px 0;
  text-align: center;
}

.logo {
  display: block;
  margin: 0 auto 20px auto;
  height: 140px;
  width: auto;
}

h1, h2 {
  color: #2aa7ff; /* electric blue accent */
}

p.lead {
  color: #cfd8dc;
  font-size: 1.25rem;
}

/* Card-like sections */
.courses,
.credentials,
.contact {
  background-color: #1c1f24;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.4);
}

/* Courses */
.courses h2 {
  margin-bottom: 15px;
}

.courses ul {
  margin: 20px 0;
  color: #e0e0e0;
  font-size: 1.1rem;
}

.courses li {
  margin: 8px 0;
}

.courses a {
  color: #2aa7ff;
  font-weight: bold;
  text-decoration: none;
}

.courses a:hover {
  text-decoration: underline;
  color: #66ccff;
}

.exam-note {
  margin-top: 15px;
  font-size: 1.05rem;
  color: #cfd8dc;
  font-style: italic;
}

/* Credentials */
.credentials h2 {
  margin-bottom: 10px;
}

.cred-badges {
  margin-top: 10px;
}

.badge-cred {
  display: inline-block;
  background: #0f1320;
  color: #cfe9ff;
  border: 1px solid #2aa7ff;
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.95rem;
}

/* Contact */
.contact h2 {
  margin-bottom: 15px;
}

.contact-link {
  font-size: 1.2rem;
  color: #2aa7ff;
  text-decoration: none;
  font-weight: bold;
}

.contact-link:hover {
  text-decoration: underline;
  color: #66ccff;
}

.contact .small {
  margin-top: 10px;
  font-size: 0.9rem;
  color: #9aa3a8;
}

/* Footer */
footer {
  background-color: #0b0d10;
  padding: 20px 0;
  font-size: 0.9rem;
  color: #888;
}

/* Responsive tweaks */
@media (max-width: 576px) {
  .logo {
    height: 110px;
  }
  p.lead {
    font-size: 1.1rem;
  }
}