@media (max-width: 900px) {
  /* Botón hamburguesa visible y posicionado */
  .mobile-burger {
    display: block !important;
    background: transparent;
    border: none;
    color: #ffffff;
    font-size: 32px;
    cursor: pointer;
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1100;
  }

  /* Ocultar navegación de escritorio */
  .fixed-top > nav {
    display: none !important;
  }

  /* Overlay (capa oscura) */
  .mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s ease;
    z-index: 1200;
  }

  /* Menú lateral (Drawer) */
  .mobile-drawer {
    position: fixed;
    top: 0;
    left: -100%;
    width: 85%;
    max-width: 320px;
    height: 100vh;
    background: #ffffff;
    z-index: 1300;
    transition: left .3s ease;
    display: flex;
    flex-direction: column;
    box-shadow: 5px 0 15px rgba(0,0,0,0.2);
  }

  /* Estados de apertura */
  body.mobile-nav-open { overflow: hidden; }
  body.mobile-nav-open .mobile-overlay { opacity: 1; visibility: visible; }
  body.mobile-nav-open .mobile-drawer { left: 0; }

  .mobile-drawer-header {
    padding: 20px;
    background: var(--vino);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .mobile-nav { overflow-y: auto; }
  .mobile-nav a {
    display: block;
    padding: 15px 20px;
    color: var(--vino);
    text-decoration: none;
    font-weight: 700;
    border-bottom: 1px solid #f0f0f0;
  }

  .mobile-nav .submenu {
    display: none;
    background: #f9f9f9;
  }

  .mobile-nav li.is-expanded > .submenu { display: block; }
}