/* Reset del navegador */
html {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
}

/* Fondo general */
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100vh;
  background: #000;
  color: white;
  font-family: Arial, sans-serif;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Imagen de portada */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("../img/portada.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  opacity: 0.40;
  z-index: -1;
}

/* Contenedor principal */
.container {
  max-width: 480px;
  width: 100%;
  padding: 20px;
  text-align: center;
  position: relative;
  z-index: 2;
}

/* Títulos */
.title {
  font-size: 42px;
  font-weight: bold;
  margin-bottom: 0;
}

.subtitle {
  margin-top: 0;
  font-size: 18px;
  opacity: 0.8;
}

/* Estado de autenticación */
.auth-status {
  font-size: 14px;
  opacity: 0.9;
  margin-top: 20px;
  padding: 10px;
  background: rgba(100, 100, 100, 0.3);
  border-radius: 6px;
}

/* Botones de autenticación */
.auth-buttons {
  margin-top: 15px;
  display: flex;
  gap: 10px;
}

.btn-auth {
  flex: 1;
  padding: 10px;
  background: #cc0000;
  color: white;
  border: 2px solid #fff;
  border-radius: 6px;
  font-size: 14px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-auth:hover {
  background: #990000;
  transform: scale(1.05);
}

.btn-auth.btn-logout {
  background: #333;
  border: 2px solid #666;
}

.btn-auth.btn-logout:hover {
  background: #222;
  border: 2px solid #999;
}

/* Clase para ocultar elementos */
.hidden {
  display: none !important;
}

/* Tarjeta */
.card {
  background: rgba(0, 0, 0, 0.65);
  padding: 20px;
  border-radius: 10px;
  margin-top: 30px;
  backdrop-filter: blur(4px);
}

/* Inputs */
input {
  width: 100%;
  padding: 12px;
  margin-top: 10px;
  border-radius: 6px;
  border: none;
  font-size: 16px;
  box-sizing: border-box;
}

/* Botón principal */
.btn-primary {
  width: 100%;
  padding: 12px;
  margin-top: 15px;
  background: red;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 18px;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s;
}

.btn-primary:hover {
  background: #cc0000;
}

/* Nota */
.note {
  font-size: 13px;
  opacity: 0.8;
  margin-top: 10px;
}

/* Footer */
footer {
  margin-top: 40px;
  font-size: 12px;
  opacity: 0.7;
}