* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(to right, #0f2027, #203a43, #2c5364);
    color: #f1f1f1;
    line-height: 1.6;
  }
  
  header {
    background-color: rgba(0, 0, 0, 0.8);
    padding: 40px 20px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.7);
  }
  
  header h1 {
    color: #FFD700;
    font-size: 3rem;
    margin-bottom: 10px;
  }
  
  header p {
    color: #ccc;
    font-size: 1.2rem;
  }
  
  header nav {
    margin-top: 20px;
  }
  
  header nav a {
    color: #FFD700;
    margin: 0 20px;
    text-decoration: none;
    font-weight: 600;
    position: relative;
    transition: color 0.3s;
  }
  
  header nav a::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: #FFD700;
    transition: width 0.3s;
    position: absolute;
    bottom: -5px;
    left: 0;
  }
  
  header nav a:hover {
    color: #fff;
  }
  
  header nav a:hover::after {
    width: 100%;
  }
  
  section {
    padding: 60px 20px;
    max-width: 1200px;
    margin: auto;
  }
  
  h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: #FFD700;
    text-align: center;
  }
  
  .sobre p {
    text-align: center;
    max-width: 800px;
    margin: auto;
    font-size: 1.1rem;
  }
  
  .projetos-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
  }
  
  .card {
    background-color: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s, box-shadow 0.3s;
  }
  
  .card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.7);
  }
  
  .card h3 {
    color: #00FFFF;
    margin-bottom: 10px;
  }
  
  .card p {
    color: #ccc;
  }
  
  .card a {
    display: inline-block;
    margin-top: 15px;
    margin-right: 10px;
    padding: 8px 16px;
    background: #FFD700;
    color: #111;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s;
  }
  
  .card a:hover {
    background: #ffc300;
  }
  
  #contato p {
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 10px;
  }
  
  #contato a {
    color: #00FFFF;
    text-decoration: none;
  }
  
  #contato a:hover {
    text-decoration: underline;
  }
  
  footer {
    background-color: rgba(0, 0, 0, 0.8);
    text-align: center;
    padding: 20px;
    color: #aaa;
    font-size: 0.9rem;
    margin-top: 40px;
  }
  
  @media (max-width: 600px) {
    header h1 {
      font-size: 2.2rem;
    }
  
    header nav a {
      margin: 0 10px;
    }
  
    h2 {
      font-size: 2rem;
    }
  }