/* ===========================
   ESTILOS GENERALES
=========================== */

body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background: #f5f5f5;
  color: #222;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===========================
   HEADER
=========================== */

.header {
  background: #222;
  color: #fff;
  padding: 25px 15px;
  text-align: center;
}

.app-title {
  margin: 0;
  font-size: 1.8rem;
}

.btn-theme {
  display: flex;               /* convierte el botón en contenedor flex */
  justify-content: center;     /* centra horizontalmente */
  align-items: center;         /* centra verticalmente */
  margin: 30px auto 20px auto;
  width: 42px;
  height: 42px;
  background: #444;
  color: #fff;
  border: none;
  border-radius: 50%;          /* círculo perfecto */
  font-size: 1.2rem;
  cursor: pointer;
  transition: 0.2s ease;
  padding: 0;                  /* importante: elimina padding */
}

.btn-theme:hover {
  background: #555;
}

/* ===========================
   MAIN
=========================== */

.main {
  flex: 1;
  padding: 20px;
  text-align: center;
}

.intro p {
  font-size: 1.1rem;
  margin-bottom: 25px;
}

/* ===========================
   BOTONES DE ACCIÓN
=========================== */

.actions {
  display: flex;
  flex-direction: column;
  gap: 15px;
  max-width: 300px;
  margin: 0 auto;
}

.actions button {
  padding: 12px;
  font-size: 1rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: 0.2s ease;
}

/* Botón principal */
.btn-primary {
  background: #0077ff;
  color: #fff;
}

.btn-primary:hover {
  background: #005fcc;
}

/* Botón secundario */
.btn-secondary {
  background: #00b894;
  color: #fff;
}

.btn-secondary:hover {
  background: #009f7e;
}



body.oscuro {
  background: #111;
  color: #eee;
}

body.oscuro .header {
  background: #000;
}

body.oscuro .btn-theme {
  background: #333;
}

/* ===========================
   BOTÓN DE TEMA (ABAJO)
=========================== */

.btn-theme {
  position: fixed;
  bottom: 20px;          /* siempre visible */
  left: 50%;
  transform: translateX(-50%);
  width: 42px;
  height: 42px;
  background: #444;
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  transition: 0.2s ease;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 999;          /* por si acaso */
}
.btn-theme:hover {
  background: #555;
}

body.oscuro .btn-theme {
  background: #222;
}

.btn-mini {
  padding: 12px;
  font-size: 1rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: 0.2s ease;
  background: #9b5de5;   /* morado elegante */
  color: #fff;
  margin: 20px auto;     /* centrado y con aire */
  display: block;        /* para que respete el centrado */
  max-width: 300px;      /* igual que los otros botones */
}
.btn-mini:hover {
  background: #7a3fcf;   /* morado más oscuro al pasar el ratón */
}


.solo-admin {
  display: none;
}

.admin .solo-admin {
  display: block;
}

.admin #btn-login-index {
  display: none;
}

/* ===========================
   BOTÓN LOGIN / LOGOUT (DEBAJO DEL BOTÓN DE TEMA)
=========================== */

.btn-loginout {
  position: fixed;
  bottom: 1px;              /* debajo del botón de tema */
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 16px;
  background: #6e6e6e;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease, opacity 0.2s ease;
  opacity: 0.85;
  z-index: 998;
}

.btn-loginout:hover {
  background: #005fcc;
  opacity: 1;
}

.btn-loginout:active {
  transform: translateX(-50%) scale(0.97);
}

/* Modo oscuro */
body.oscuro .btn-loginout {
  background: #333;
  color: #eee;
}

body.oscuro .btn-loginout:hover {
  background: #444;
}