:root {
    --bg-dark: #000000;
    --text-dark: #DDD2BE;
    --card-dark: #111111;

    --bg-light: #f9f6f2;
    --text-light: #111111;
    --card-light: #ffffff;

    --accent: #DDD2BE;
    --transition: 0.3s ease;
  }

  body {
    margin: 0;
    font-family: 'Urbanist', 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-dark);
    line-height: 1.6;
    transition: background-color var(--transition), color var(--transition);
  }

  body.light {
    background-color: var(--bg-light);
    color: var(--text-light);
  }

  header {
    text-align: center;
    padding: 3rem 1rem 2rem;
    position: relative;
  }

  .logo {
    width: 140px;
    margin-bottom: 1rem;
    animation: fadeInLogo 1s ease-out;
  }

  @keyframes fadeInLogo {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
  }

  header h1 {
    font-size: 2.8rem;
    margin-bottom: 0.3rem;
  }

  header p {
    color: var(--accent);
    font-size: 1.1rem;
    opacity: 0.85;
  }

  .theme-toggle {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: var(--accent);
    border: none;
    padding: 0.5rem 1rem;
    color: #000;
    border-radius: 25px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color var(--transition);
  }

  section {
    max-width: 800px;
    margin: 3rem auto;
    padding: 0 1rem;
  }

  h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--accent);
  }

  .skills, .projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.2rem;
  }

  .card {
    background-color: var(--card-dark);
    padding: 1rem;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    transition: transform var(--transition), box-shadow var(--transition);
  }

  body.light .card {
    background-color: var(--card-light);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  }

  .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.4);
  }

  .card h3 {
    margin-top: 0;
    margin-bottom: 0.5rem;
  }

  .contact a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
  }

  footer {
    text-align: center;
    padding: 2rem 1rem;
    font-size: 0.9rem;
    color: #999;
  }

  body.light footer {
    color: #555;
  }

  @media (max-width: 600px) {
    header h1 {
      font-size: 2.2rem;
    }
    .theme-toggle {
      padding: 0.4rem 0.8rem;
      font-size: 0.9rem;
    }
  }