*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  text-decoration: none;
  font-family: 'Roboto', sans-serif;
}

/* Fondo con imagen */
body.page-login {
  min-height: 100vh;
  color: #f9fafb;
  background-color: #0a192f;
  background-image: url('../styles/img/login_fondo.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

main{
  width: 100%;
  min-height: calc(100vh - 100px);
  padding: 40px 24px;
  margin: auto;
  margin-top: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contenedor__todo{
  width: 100%;
  max-width: 640px;
  margin: auto;
  position: relative;
}

.contenedor__login-register{
  width: 100%;
  position: relative;
  min-height: 220px;
  transition: min-height 0.35s ease;
}

.contenedor__login-register.vista-register{
  min-height: 520px;
}

.contenedor__login-register form{
  width: 100%;
  padding: 40px 36px;
  background: #ffffff;
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.contenedor__login-register form h2{
  font-size: 1.5rem;
  text-align: center;
  margin-bottom: 24px;
  color: #0f172a;
}

/* Fila horizontal: email, contraseña, botón Entrar */
.formulario__login-fila{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 20px;
}

.formulario__login-fila input{
  flex: 1;
  min-width: 140px;
  padding: 12px 14px;
  border: 1px solid #e5e7eb;
  background: #f8fafc;
  font-size: 15px;
  outline: none;
  border-radius: 10px;
  transition: border-color 0.2s, background 0.2s;
}

.formulario__login-fila input:focus{
  border-color: var(--kme-blue);
  background: #fff;
}

.formulario__login-fila button[type="submit"]{
  padding: 12px 28px;
  border: none;
  font-size: 14px;
  background: var(--kme-blue);
  font-weight: 600;
  cursor: pointer;
  color: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 14px rgba(16, 31, 175, 0.35);
  white-space: nowrap;
  transition: background 0.2s, transform 0.2s;
}

.formulario__login-fila button[type="submit"]:hover{
  background: #0a1a8a;
  transform: translateY(-1px);
}

.formulario__login-registro{
  text-align: center;
  margin: 0;
  font-size: 0.95rem;
  color: #64748b;
}

.formulario__login-registro .link-btn{
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
  font-weight: 600;
  color: var(--kme-blue);
  cursor: pointer;
  text-decoration: underline;
  outline: none;
}

.formulario__login-registro .link-btn:hover{
  color: #0a1a8a;
}

.contenedor__login-register form input{
  width: 100%;
  margin-top: 14px;
  padding: 12px 14px;
  border: 1px solid #e5e7eb;
  background: #f8fafc;
  font-size: 15px;
  outline: none;
  border-radius: 10px;
}

.contenedor__login-register form input:focus{
  border-color: var(--kme-blue);
  background: #fff;
}

.contenedor__login-register .formulario__register button[type="submit"]{
  width: 100%;
  padding: 12px 28px;
  margin-top: 24px;
  border: none;
  font-size: 14px;
  background: var(--kme-blue);
  font-weight: 600;
  cursor: pointer;
  color: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 14px rgba(16, 31, 175, 0.35);
}

.contenedor__login-register .formulario__register .formulario__login-registro{
  margin-top: 20px;
}




.formulario__login{
  opacity: 1;
  visibility: visible;
  display: block;
}
.formulario__register{
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.formulario__register.activo{
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.formulario__login.oculto{
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

@media screen and (max-width: 640px){
  main{
    padding: 24px 16px;
  }
  .formulario__login-fila{
    flex-direction: column;
    align-items: stretch;
  }
  .formulario__login-fila input{
    min-width: 0;
  }
  .contenedor__login-register form{
    padding: 32px 24px;
  }
}