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

body {
  font-family: Arial, sans-serif;
  background: #f4f6f9;
  color: #333;
}

/* HEADER */
header {
  background: #1e293b;
  color: white;
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

header strong {
  font-size: 18px;
}

header nav {
  display: flex;
  align-items: center;
  gap: 15px;
}

header a {
  color: white;
  text-decoration: none;
  font-size: 14px;
}

header a:hover {
  text-decoration: underline;
}

/* MAIN */
main {
  max-width: 1000px;
  margin: 30px auto;
  padding: 20px;
}

/* BUTTON PADRÃO */
button {
  background: #2563eb;
  color: white;
  border: none;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
}

button:hover {
  background: #1d4ed8;
}

/* FORM */
form {
  margin-top: 15px;
}

input, textarea, select {
  width: 100%;
  padding: 8px;
  margin-top: 5px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 6px;
}

/* RESPONSIVO */
@media (max-width: 600px) {
  header {
    flex-direction: column;
    align-items: flex-start;
  }

  main {
    margin: 15px;
    padding: 10px;
  }
}