/* ============================================================
   DEMO – Estilos del formulario
   Compatible con vlcplus.css (colores, tipografías, botones)
   ============================================================ */

/* Fondo institucional para toda la página DEMO */
body {
  background: linear-gradient(135deg, #e6e9ef 0%, #cfd3da 100%);
  padding: 40px 0;
}

/* ------------------------------
   Contenedor general
--------------------------------*/
.form-demo-section {
  background: linear-gradient(135deg, #bbbec0 0%, #a9a7a7 100%);
  padding: 40px;
  border-radius: 12px;
  max-width: 700px;
  margin: 40px auto;
  border: 1px solid #E5E5E5;
}

/* ------------------------------
   Logo
--------------------------------*/
.logo-vlcplus {
  width: 180px;
  height: auto;
  display: block;
  margin: 0 auto 25px;
}

/* ------------------------------
   Títulos y descripción
--------------------------------*/
.form-demo h3 {
  color: var(--azul);
  font-size: 26px;
  margin-bottom: 10px;
  text-align: center;
}

.form-description {
  color: #4F4F4F;
  margin-bottom: 25px;
  font-size: 15px;
  text-align: center;
}

/* ------------------------------
   Grupos de formulario
--------------------------------*/
.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-weight: 600;
  color: var(--azul);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #D0D0D0;
  border-radius: 6px;
  font-size: 15px;
  color: #4F4F4F;
  background: #fff;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--azul);
  outline: none;
  box-shadow: 0 0 4px rgba(19, 79, 151, 0.3);
}

/* ------------------------------
   Botón de envío
--------------------------------*/
.btn-submit {
  background: var(--azul);
  color: #FFFFFF;
  padding: 12px 22px;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
  font-weight: 600;
  transition: 0.3s;
  width: 100%;
}

.btn-submit:hover {
  background: #0F3F78;
}

/* ------------------------------
   Mensaje de éxito
--------------------------------*/
.mensaje-exito {
  background: #E8F4FF;
  border-left: 4px solid var(--azul);
  padding: 15px;
  margin-top: 20px;
  color: var(--azul);
  font-weight: 600;
  border-radius: 6px;
  text-align: center;
}

/* ============================================================
   RESPONSIVIDAD
============================================================ */

/* Tablets */
@media (max-width: 768px) {
  .form-demo-section {
    padding: 30px;
  }

  .logo-vlcplus {
    width: 150px;
  }

  .btn-submit {
    font-size: 15px;
  }
}

/* Móviles pequeños */
@media (max-width: 480px) {
  .form-demo-section {
    padding: 20px;
    margin: 20px;
  }

  .logo-vlcplus {
    width: 130px;
  }

  .form-demo h3 {
    font-size: 22px;
  }

  .btn-submit {
    padding: 12px;
    font-size: 15px;
  }
}