/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  line-height: 1.5;
  color: #333;
  background-color: white;
  max-width: 700px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1,
h2,
h3,
p {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
}

h1 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: #1a1a1a;
}

h2 {
  font-size: 1.125rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: #1a1a1a;
}

h2 a {
  color: #0066cc;
  text-decoration: none;
}

h2 a:hover {
  text-decoration: underline;
}

p {
  font-size: 0.9rem;
  font-weight: 400;
  margin-bottom: 6px;
}

/* Header */
header {
  text-align: center;
  padding: 40px 0 30px 0;
  border-bottom: 1px solid #e5e5e5;
  margin-bottom: 30px;
}

header p {
  font-size: 1rem;
  font-weight: 300;
  color: #666;
  margin-bottom: 0;
}

/* Main content */
main {
  margin-bottom: 40px;
}

.certifications {
  display: block;
}

.certification {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid #f0f0f0;
}

.certification:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.issuer {
  font-weight: 500;
  color: #555;
  margin-bottom: 6px;
}

.date {
  font-size: 0.8rem;
  color: #777;
  margin-bottom: 8px;
}

.skills {
  color: #666;
  font-size: 0.85rem;
  margin-bottom: 0;
}

/* Footer */
footer {
  text-align: center;
  padding: 30px 0;
  border-top: 1px solid #e5e5e5;
  color: #777;
  font-size: 0.8rem;
}

/* Responsive design */
@media (max-width: 768px) {
  body {
    padding: 0 16px;
  }

  h1 {
    font-size: 1.75rem;
  }

  header {
    padding: 30px 0 20px 0;
    margin-bottom: 20px;
  }

  .certification {
    margin-bottom: 20px;
    padding-bottom: 20px;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1rem;
  }

  header {
    padding: 20px 0 15px 0;
  }

  .certification {
    margin-bottom: 16px;
    padding-bottom: 16px;
  }
}