/* Reset básico */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Fondo y centrado */
body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: #fefefe;
  color: #333;
}

/* Logo */
.logo {
  width: 500px;
  margin-top: -100px;
}

/* Enlace */
a {
  /* Minimalista */
  text-decoration: none;
  color: #007bff;
  font-size: 1.1em;
  border: 2px solid #007bff;
  padding: 5px 20px;
  border-radius: 5px;
  transition: background-color 0.3s, color 0.3s;
  margin-top: -70px;
  background-color: #fefefe;
}

a:hover {
  background-color: #55a7ff;
  border: 2px solid #55a7ff;
  color: #fefefe;
}

/* ----------- RESPONSIVE ----------- */
@media (max-width: 768px) {
  .logo {
    width: 100%;
    margin-top: -50px;
  }

  a {
    font-size: 1.25em;
    padding: 8px 16px;
    margin-top: -30px;
  }
}

@media (max-width: 480px) {
  .logo {
    width: 100%;
    margin-top: -20px;
  }

  a {
    font-size: 1.25em;
    padding: 6px 12px;
    margin-top: -10px;
  }
}