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

/* F/D */
.fondo-login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: linear-gradient(to right, #0033a0 50%, #d52b1e 50%);
  padding: 1rem;
}

/* Tarjeta de login */
.formulario-contenedor {
  background-color: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  max-width: 400px;
  width: 100%;
  text-align: center;
}

.logo-login {
  width: 80px;
  margin-bottom: 1rem;
}

h2 {
  margin-bottom: 1.5rem;
  color: #002b7f;
  font-size: 1.4rem;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 0.7rem;
  margin-bottom: 1rem;
  border-radius: 8px;
  border: 1px solid #ccc;
  font-size: 1rem;
}

/* Botones */
.botones {
  display: flex;
  gap: 1rem;
  justify-content: space-between;
}

.btn-volver,
.btn-ingresar {
  flex: 1;
  padding: 0.6rem;
  border-radius: 8px;
  font-weight: bold;
  font-size: 1rem;
  text-align: center;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background-color 0.3s;
}

/* Botón volver */
.btn-volver {
  background-color: #e6e6e6;
  color: #0033a0;
}

.btn-volver:hover {
  background-color: #cccccc;
}

/* Botón ingresar */
.btn-ingresar {
  background-color: #002b7f;
  color: white;
}

.btn-ingresar:hover {
  background-color: #001b5f;
}

/* Mensaje de error */
#mensaje {
  color: red;
  font-size: 0.9rem;
  margin-top: 1rem;
}

/* RESPONSIVE para móviles */
@media (max-width: 600px) {
  .fondo-login {
    flex-direction: column;
    background: linear-gradient(to bottom, #0033a0 50%, #d52b1e 50%);
  }

  .formulario-contenedor {
    padding: 1.5rem;
  }

  .btn-volver,
  .btn-ingresar {
    font-size: 0.95rem;
  }
}