/* CSS Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.7;
  color: #2d3748;
  background-color: #f7fafc;
}

/* Skip Navigation Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #4a5568;
  color: #ffffff;
  padding: 8px 16px;
  text-decoration: none;
  font-weight: 500;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
  outline: 3px solid #4299e1;
  outline-offset: 2px;
}

/* Container */
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  background-color: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  padding: 24px 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: 600;
  color: #2d3748;
}

/* Main Content */
main {
  background-color: #ffffff;
  margin: 40px auto;
  max-width: 800px;
  padding: 48px 24px;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

h1 {
  font-size: 2rem;
  line-height: 1.3;
  margin-bottom: 16px;
  color: #1a202c;
  font-weight: 600;
}

h2 {
  font-size: 1.5rem;
  line-height: 1.4;
  margin-top: 48px;
  margin-bottom: 16px;
  color: #2d3748;
  font-weight: 600;
}

h2:first-of-type {
  margin-top: 32px;
}

h3 {
  font-size: 1.125rem;
  line-height: 1.5;
  margin-top: 24px;
  margin-bottom: 8px;
  color: #4a5568;
  font-weight: 600;
}

p {
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 16px;
  color: #4a5568;
}

.intro {
  font-size: 1.125rem;
  color: #2d3748;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid #e2e8f0;
}

/* Info Box */
.info-box {
  background-color: #edf2f7;
  border-left: 3px solid #4299e1;
  padding: 20px 24px;
  margin: 24px 0;
  border-radius: 4px;
}

.info-box p {
  margin-bottom: 0;
  color: #2d3748;
}

/* List Styles */
ul {
  margin: 16px 0 24px 24px;
  list-style-type: disc;
}

li {
  font-size: 1rem;
  line-height: 1.7;
  color: #4a5568;
  margin-bottom: 8px;
}

/* Contact Section */
.contact-info {
  background-color: #f7fafc;
  padding: 32px;
  margin: 48px 0 0 0;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
}

.contact-info h2 {
  margin-top: 0;
}

.contact-email {
  display: inline-block;
  color: #2c5282;
  text-decoration: none;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease;
}

.contact-email:hover {
  border-bottom-color: #2c5282;
}

.contact-email:focus {
  outline: 3px solid #4299e1;
  outline-offset: 2px;
  border-radius: 2px;
}

/* Team Section */
.team-member {
  margin-bottom: 32px;
}

.team-member:last-child {
  margin-bottom: 0;
}

.member-name {
  font-weight: 600;
  color: #2d3748;
  font-size: 1.125rem;
  margin-bottom: 4px;
}

.member-title {
  color: #718096;
  font-size: 0.9375rem;
  margin-bottom: 8px;
}

/* Footer */
footer {
  background-color: #ffffff;
  border-top: 1px solid #e2e8f0;
  padding: 24px 0;
  margin-top: 40px;
  text-align: center;
}

footer p {
  color: #718096;
  font-size: 0.875rem;
  margin-bottom: 0;
}

/* Focus Styles */
a:focus {
  outline: 3px solid #4299e1;
  outline-offset: 2px;
}

/* Responsive Design */
@media (max-width: 640px) {
  main {
    margin: 24px auto;
    padding: 32px 20px;
    border-radius: 0;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.375rem;
    margin-top: 40px;
  }

  .contact-info {
    padding: 24px;
  }
}