:root {
  --mb-principal : #FF5C35;
  --mb-oscuro   : #0d1117;
  --mb-alt   : #1a2744;
  --mb-claro  : #DFE3EA;
  --mb-border-radius: 50%;
  --mb-border-radius-active: 50%;
  --mb--font-size: 1rem;
  --mb-font-weight: 500;
  --mb-text-transform: upppercase;
  --mb-speed  : 0.42s;
  --mb-ease   : cubic-bezier(0.77, 0, 0.175, 1);
  --mb-panel-w: min(320px, 88vw);
}

/* ---------- Sin scroll cuando el panel está abierto ---------- */
body.mb-no-scroll { overflow: hidden; }

/* ---------- Botón flotante ---------- */
.mb-btn {
  position: relative;
  top: 0;
  left: 0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 52px;
  height: 52px;
  padding: 0;
  background: var(--mb-principal);
  border: none;
  border-radius: var(--mb-border-radius);
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(232,73,30,0.45);
  transition: background var(--mb-speed) var(--mb-ease),
              box-shadow  var(--mb-speed) var(--mb-ease),
              transform   0.2s ease;
}
.mb-btn:hover        { transform: scale(1.08); box-shadow: 0 6px 28px rgba(232,73,30,0.65); }
.mb-btn:focus-visible{ outline: 2px solid var(--mb-claro); outline-offset: 3px; }
.mb-btn.is-open      {
  background: var(--mb-oscuro);
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  border-radius: var(--mb-border-radius-active);
}

/* — Barras → Cruz — */
.mb-bar {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--mb-claro);
  border-radius: 2px;
  transform-origin: center;
  transition: transform var(--mb-speed) var(--mb-ease),
              opacity   var(--mb-speed) var(--mb-ease),
              width     var(--mb-speed) var(--mb-ease);
}
.mb-btn.is-open .mb-bar:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.mb-btn.is-open .mb-bar:nth-child(2) { opacity: 0; width: 0; }
.mb-btn.is-open .mb-bar:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* ---------- Backdrop ---------- */
.mb-backdrop {
  position: fixed;
  inset: 0;
  z-index: 9997;
  background: rgba(0,0,0,0.55);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--mb-speed) ease;
}
.mb-backdrop.is-open { opacity: 1; pointer-events: auto; }

/* ---------- Panel lateral ---------- */
.mb-panel {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 9998;
  width: var(--mb-panel-w);
  background: var(--mb-oscuro);
  transform: translateX(-100%);
  transition: transform var(--mb-speed) var(--mb-ease);
  overflow: hidden;
  /* Línea naranja del lado del contenido (ahora derecha) */
  border-right: 3px solid transparent;
}
.mb-panel.is-open {
  transform: translateX(0);
  border-right-color: var(--mb-principal);
  box-shadow: 8px 0 40px rgba(0,0,0,0.6);
}

/* Fondo montañas */
.mb-panel::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 400 700' preserveAspectRatio='none'%3E%3Cpath fill='%231a2744' fill-opacity='0.3' d='M0,400L100,340C200,280,300,320,400,300L400,700L0,700Z'/%3E%3Cpath fill='%231a2744' fill-opacity='0.15' d='M0,520L150,480C250,440,350,460,400,450L400,700L0,700Z'/%3E%3C/svg%3E");
  background-size: cover;
  background-position: bottom;
}

/* ---------- Scroll interno del panel ---------- */
.mb-panel-inner {
  position: relative;
  z-index: 1;
  height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 88px 0 40px; /* 88px = espacio para no tapar el botón */
}

/* ---------- Lista principal ---------- */
.mb-menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Stagger de entrada (invertido: entra desde la izquierda) */
.mb-menu > li {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.mb-panel.is-open .mb-menu > li:nth-child(1)  { opacity:1; transform:none; transition-delay:.12s }
.mb-panel.is-open .mb-menu > li:nth-child(2)  { opacity:1; transform:none; transition-delay:.17s }
.mb-panel.is-open .mb-menu > li:nth-child(3)  { opacity:1; transform:none; transition-delay:.22s }
.mb-panel.is-open .mb-menu > li:nth-child(4)  { opacity:1; transform:none; transition-delay:.27s }
.mb-panel.is-open .mb-menu > li:nth-child(5)  { opacity:1; transform:none; transition-delay:.32s }
.mb-panel.is-open .mb-menu > li:nth-child(6)  { opacity:1; transform:none; transition-delay:.37s }
.mb-panel.is-open .mb-menu > li:nth-child(n+7){ opacity:1; transform:none; transition-delay:.42s }

/* Separador */
.mb-menu > li + li { border-top: 1px solid rgba(255,255,255,0.06); }

/* — Fila: enlace + botón toggle — */
.mb-menu li {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
}

/* Enlace */
.mb-menu a {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 15px 20px;
  text-decoration: none;
  color: var(--mb-claro);
  font-size: var(--mb--font-size);
  font-weight: var(--mb-font-weight);
  letter-spacing: 0.08em;
  text-transform: var(--mb-text-transform)s;
  border-left: 3px solid transparent;
  transition: color .2s ease, border-color .2s ease,
              background .2s ease, padding-left .2s ease;
}
.mb-menu a:hover,
.mb-menu .current-menu-item > a,
.mb-menu .current-page-ancestor > a {
  color: var(--mb-principal);
  border-left-color: var(--mb-principal);
  background: rgba(232,73,30,0.08);
  padding-left: 26px;
}
.mb-menu a .mb-link-text { pointer-events: none; }

/* ---------- Botón toggle acordeón ---------- */
.mb-toggle {
  flex-shrink: 0;
  width: 48px;
  background: none;
  border: none;
  border-left: 1px solid rgba(255,255,255,0.08);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background .2s ease;
}
.mb-toggle:hover { background: rgba(232,73,30,0.1); }

/* Flecha con CSS puro */
.mb-toggle span {
  display: block;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--mb-claro);
  border-bottom: 2px solid var(--mb-claro);
  transform: rotate(45deg);
  transition: transform .35s var(--mb-ease), border-color .2s ease;
  margin-top: -4px; /* centrado óptico */
}
.menu-item-has-children.is-open > .mb-toggle span {
  transform: rotate(-135deg);
  border-color: var(--mb-principal);
  margin-top: 4px;
}

/* ---------- Submenú acordeón ---------- */
.mb-menu .sub-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;           /* ocupa el ancho completo del li padre */
  max-height: 0;
  overflow: hidden;
  background: rgba(255,255,255,0.03);
  /* max-height animado via JS (scrollHeight) */
  transition: max-height .38s var(--mb-ease);
}

/* Ítems de submenú */
.mb-menu .sub-menu li {
  border-top: 1px solid rgba(255,255,255,0.05);
}
.mb-menu .sub-menu a {
  font-size: .92rem;
  padding: 12px 20px 12px 32px;
  color: rgba(245,240,232,0.65);
  letter-spacing: .05em;
  border-left: 3px solid transparent;
}
.mb-menu .sub-menu a:hover {
  color: var(--mb-principal);
  border-left-color: var(--mb-principal);
  background: rgba(232,73,30,0.07);
  padding-left: 38px;
}

/* Sub-submenú (3.er nivel) — mismo patrón, más indentado */
.mb-menu .sub-menu .sub-menu a {
  padding-left: 48px;
  font-size: .85rem;
}
.mb-menu .sub-menu .sub-menu a:hover { padding-left: 54px; }