body {
  margin: 0;
  background-color: #111;
  color: white;
  font-family: Arial, sans-serif;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 50px;
  flex-wrap: wrap;
}

.logo img {
  height: 150px;
  max-width: 100%;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 30px;
  padding: 0;
  margin: 0;
}

nav ul li a {
  text-decoration: none;
  color: #00aaff;
  font-weight: bold;
}

.login-btn {
  border: 1px solid #00aaff;
  padding: 5px 15px;
  color: #00aaff;
  border-radius: 5px;
  text-decoration: none;
  font-size: 14px;
}

main {
  max-width: 900px;
  margin: 50px auto;
  padding: 0 20px;
  line-height: 1.6;
}

h1 {
  font-size: 32px;
  color: #00aaff;
}

p {
  margin-top: 10px;
  font-size: 16px;
}

ul {
  margin-top: 15px;
  padding-left: 20px;
}

ul li {
  margin-bottom: 10px;
}

.circles {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: 150px;
  background: url('Ellipse\ 2.png') no-repeat center;
  background-size: contain;
  pointer-events: none;
}

@media (max-width: 768px) {
  header {
    flex-direction: column;
    align-items: center;
    padding: 15px 20px;
  }

  nav ul {
    flex-direction: column;
    gap: 15px;
    align-items: center;
  }

  .login-btn {
    margin-top: 10px;
    font-size: 16px;
    padding: 8px 20px;
  }

  h1 {
    font-size: 26px;
    text-align: center;
  }

  p, ul li {
    font-size: 14px;
  }

  main {
    margin: 30px auto;
    padding: 0 15px;
  }

  .circles {
    display: none; /* Esconde no celular para não atrapalhar */
  }
}

@media (max-width: 480px) {
  header {
    padding: 10px;
  }

  nav ul {
    gap: 10px;
  }

  h1 {
    font-size: 22px;
  }

  p, ul li {
    font-size: 13px;
  }
}