* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Segoe UI', sans-serif;
    background: #f4f7fb;
    color: #333;
    line-height: 1.6;
  }
  
  .navbar {
    background: #5ca1d3;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
  }
  
  .logo {
    font-size: 2.0rem;
    font-weight: bold;
  }
  
  
  .auth-buttons button {
    margin-left: 1rem;
    padding: 0.5rem 1rem;
    border: none;
    background: #000000;
    color: white;
    border-radius: 4px;
    cursor: pointer;
  }
  
  .auth-buttons .signup {
    background: #2ecc71;
  }
  
  .auth-buttons button:hover {
    opacity: 0.9;
  }
  
  .hero-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: auto;
    flex-wrap: wrap;
  }
  
  .hero-content {
    flex: 1;
    max-width: 600px;
  }
  
  .hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #1e2a38;
  }
  
  .hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #555;
  }
  
  .hero-content button {
    padding: 0.75rem 2rem;
    background: #4ea1d3;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
  }
  
  .hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
  }
  
  .features-section {
    background: white;
    padding: 4rem 2rem;
    text-align: center;
  }
  
  .features-section h2 {
    font-size: 2rem;
    margin-bottom: 3rem;
    color: #1e2a38;
  }
  
  .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: auto;
  }
  
  .feature-card {
    background: #f9fbfe;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
  }
  
  .feature-card h3 {
    margin-bottom: 1rem;
    color: #1e2a38;
  }
  
  .footer {
    background: #1e2a38;
    color: white;
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
  }