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

:root {
  --background: hsl(0, 0%, 98.82%);
  --foreground: hsl(0, 0%, 9.02%);
  --card: hsl(35, 66.7%, 96.5%);
  --card-foreground: hsl(0, 0%, 9.02%);
  --primary: hsl(34.97, 100%, 60.98%);
  --primary-foreground: hsl(153.33, 13.04%, 13.53%);
  --secondary: hsl(0, 0%, 99.22%);
  --secondary-foreground: hsl(0, 0%, 9.02%);
  --muted: hsl(0, 0%, 92.94%);
  --muted-foreground: hsl(0, 0%, 12.55%);
  --accent: hsl(0, 0%, 92.94%);
  --accent-foreground: hsl(0, 0%, 12.55%);
  --border: hsl(0, 0%, 87.45%);
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: hsl(0, 0%, 7.06%);
    --foreground: hsl(214.29, 31.82%, 91.37%);
    --card: hsl(0, 0%, 9.02%);
    --card-foreground: hsl(214.29, 31.82%, 91.37%);
    --primary: hsl(34.97, 100%, 60.98%);
    --primary-foreground: hsl(153.33, 13.04%, 13.53%);
    --secondary: hsl(0, 0%, 14.12%);
    --secondary-foreground: hsl(0, 0%, 98.04%);
    --muted: hsl(0, 0%, 12.16%);
    --muted-foreground: hsl(0, 0%, 63.53%);
    --accent: hsl(0, 0%, 19.22%);
    --accent-foreground: hsl(0, 0%, 98.04%);
    --border: hsl(0, 0%, 16.08%);
  }
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--foreground);
  background-color: var(--background);
}

/* Container */
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background: var(--primary);
  color: var(--primary-foreground);
  padding: 2rem 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-content {
  text-align: center;
}

header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 0;
}

/* Main content */
main {
  padding: 3rem 0;
}

.content {
  background: var(--card);
  padding: 3rem;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  margin-bottom: 2rem;
}

/* Typography */
h2 {
  color: var(--foreground);
  font-size: 1.8rem;
  font-weight: 600;
  margin: 2.5rem 0 1rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border);
}

h3 {
  color: var(--foreground);
  font-size: 1.3rem;
  font-weight: 600;
  margin: 1.5rem 0 0.8rem 0;
}

p {
  margin-bottom: 1rem;
  color: var(--muted-foreground);
  font-size: 1rem;
}

/* Lists */
ul {
  margin: 1rem 0 1.5rem 0;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
  color: var(--muted-foreground);
}

li strong {
  color: var(--foreground);
}

/* Intro section */
.intro {
  background: var(--muted);
  padding: 2rem;
  border-radius: 8px;
  margin-bottom: 2rem;
  border-left: 4px solid var(--primary);
}

.last-updated {
  color: var(--muted-foreground);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.intro-text {
  font-size: 1.1rem;
  color: var(--foreground);
  margin-bottom: 0;
}

/* Contact info */
.contact-info {
  background: var(--muted);
  padding: 1.5rem;
  border-radius: 8px;
  margin: 1rem 0;
}

.contact-info p {
  margin-bottom: 0.5rem;
}

/* Links */
a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary);
  text-decoration: underline;
  opacity: 0.8;
}

/* Sections */
section {
  margin-bottom: 2rem;
}

section:first-child {
  margin-top: 0;
}

/* Footer */
footer {
  background: var(--secondary);
  color: var(--secondary-foreground);
  padding: 2rem 0;
  text-align: center;
  margin-top: 3rem;
  border-top: 1px solid var(--border);
}

footer p {
  margin-bottom: 0.5rem;
  color: var(--muted-foreground);
}

/* Responsive design */
@media (max-width: 768px) {
  .container {
    padding: 0 15px;
  }

  header {
    padding: 1.5rem 0;
  }

  .header-content {
    text-align: center;
  }

  header h1 {
    font-size: 2rem;
  }

  .content {
    padding: 2rem 1.5rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.2rem;
  }

  main {
    padding: 2rem 0;
  }
}

@media (max-width: 480px) {
  header h1 {
    font-size: 1.6rem;
  }

  .content {
    padding: 1.5rem 1rem;
  }

  .intro {
    padding: 1.5rem;
  }

  .contact-info {
    padding: 1rem;
  }

  ul {
    padding-left: 1.2rem;
  }
}

/* Print styles */
@media print {
  header {
    background: none;
    color: #000;
    box-shadow: none;
  }

  .content {
    box-shadow: none;
    padding: 1rem;
  }

  footer {
    background: none;
    color: #000;
  }

  a {
    color: #000;
    text-decoration: underline;
  }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  body {
    background-color: #fff;
    color: #000;
  }

  .content {
    border: 2px solid #000;
  }

  a {
    color: #0000ee;
  }

  a:visited {
    color: #551a8b;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  body {
    background-color: #1a202c;
    color: #e2e8f0;
  }

  .content {
    background: #2d3748;
    color: #e2e8f0;
  }

  h2 {
    color: #f7fafc;
    border-bottom-color: #4a5568;
  }

  h3 {
    color: #cbd5e0;
  }

  p,
  li {
    color: #cbd5e0;
  }

  li strong {
    color: #f7fafc;
  }

  .intro {
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
    border-left-color: #667eea;
  }

  .intro-text {
    color: #f7fafc;
  }

  .contact-info {
    background: #4a5568;
  }

  .last-updated {
    color: #a0aec0;
  }

  a {
    color: #90cdf4;
  }

  a:hover {
    color: #63b3ed;
  }
}