:root {
  --primary: #3b82f6;
  --primary-dark: #1d4ed8;
  --secondary: #10b981;
  --background: #111827;
  --surface: #1f2937;
  --text: #f3f4f6;
  --text-secondary: #9ca3af;
  --border: #374151;
  --accent: #8b5cf6;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--background);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

header {
  padding: 2rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3rem;
}

.logo {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 0;
}

h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-size: 1.5rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin-bottom: 2.5rem;
}

.button-group {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 1rem;
}

.button-primary {
  background-color: var(--primary);
  color: white;
}

.button-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3);
}

.button-secondary {
  background-color: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.button-secondary:hover {
  background-color: var(--border);
  transform: translateY(-2px);
}

.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding: 3rem 0;
}

.feature-card {
  background-color: var(--surface);
  border-radius: 1rem;
  padding: 2rem 1.5rem;
  border: 1px solid var(--border);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--accent);
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.feature-description {
  color: var(--text-secondary);
}

.card {
  background-color: var(--surface);
  border-radius: 1rem;
  padding: 2rem;
  border: 1px solid var(--border);
  margin-bottom: 2rem;
}

.card-title {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: var(--primary);
}

.card-content {
  margin-bottom: 1.5rem;
}

.endpoints {
  margin: 2rem 0;
}

.endpoint {
  display: flex;
  padding: 1rem;
  border-radius: 0.5rem;
  background: var(--surface);
  margin-bottom: 1rem;
  border-left: 4px solid var(--accent);
}

.method {
  font-weight: bold;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  margin-right: 1rem;
  min-width: 60px;
  text-align: center;
}

.get {
  background-color: #10b981;
  color: white;
}

.post {
  background-color: #3b82f6;
  color: white;
}

.put {
  background-color: #f59e0b;
  color: white;
}

.delete {
  background-color: #ef4444;
  color: white;
}

.path {
  font-family: 'Roboto Mono', monospace;
  color: var(--text);
}

.description {
  margin-left: 1rem;
  color: var(--text-secondary);
}

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

@media (max-width: 1100px) {
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }
  
  .subtitle {
    font-size: 1.2rem;
  }
  
  .features {
    grid-template-columns: 1fr;
  }
  
  .endpoint {
    flex-direction: column;
  }
  
  .method {
    margin-bottom: 0.5rem;
  }
  
  .description {
    margin-left: 0;
    margin-top: 0.5rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }
  
  .logo {
    font-size: 2rem;
  }
  
  header {
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    text-align: center;
  }
  
  .button-group {
    justify-content: center;
  }
}