/* Ejemplo basado en estilos que usas */
body {
  background: #1e1e2f;
  color: #fff;
  font-family: "Segoe UI", sans-serif;
  padding: 20px 20px 40px;
  display: block;
  min-height: 100vh;
}

body.pagina-especial {
  padding-top: 0;
}

body.pagina-especial nav {
  width: 100%;
  margin: 0;
  padding-top: 0;
  position: relative;
}

.container {
  margin: 2rem auto;
}

.container {
  background: rgba(40, 40, 60, 0.85);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
  max-width: 400px;
  width: 100%;
  text-align: center;
}

/* Inputs en tema oscuro */
input[type="password"],
input[type="text"],
input[type="number"] {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  margin: 6px 0 10px 0;
  box-sizing: border-box;
}

input[type="password"]:focus,
input[type="text"]:focus,
input[type="number"]:focus {
  outline: none;
  border-color: rgba(0, 191, 255, 0.7);
  box-shadow: 0 0 0 3px rgba(0, 191, 255, 0.08);
}

button,
input[type="submit"],
.btn-volver,
.btn-archivo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 28px;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: 8px;
  cursor: pointer;
}

input[type="submit"] {
  color: #121212;
  background-color: #00b894;
  border: none;
  box-shadow: 0 6px 12px rgba(0, 184, 148, 0.35);
}

input[type="submit"]:hover {
  background-color: #019875;
}

.btn-volver {
  color: #00b894;
  border: 1px solid #00b894;
  background: transparent;
  padding: 0 28px;
  min-height: 46px;
}

.btn-volver:hover {
  color: #121212;
  background: #00b894;
}

.mensaje {
  padding: 15px;
  border-radius: 8px;
  font-weight: bold;
}

.mensaje.exito {
  background-color: #009933; /* verde */
  color: white;
}

.mensaje.error {
  background-color: #cc0000; /* rojo */
  color: white;
}

.btn {
  display: inline-block;
  background: #00bfff;
  color: #fff;
  padding: 10px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s ease;
}

.btn:hover {
  background: #009acd;
}

.btn-group {
  margin-top: 15px;
}