/* ===========================
   NAVEGADOR / HEADER (responsive drop-down)
   =========================== */
:root { --header-h: 64px; }

.navegador {
  position: relative;
  width: 100%;
  margin: 0 auto;
  border-bottom: 1px solid var(--BORDE);
  background: rgba(10, 13, 18, .75);
  backdrop-filter: saturate(120%) blur(6px);
}

.header-content {
  max-width: 1200px;
  margin-inline: auto;
  padding: 12px clamp(16px, 4vw, 28px);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
  min-height: var(--header-h);
}

.titulo {
  margin: 0;
  font-weight: 800;
  letter-spacing: 0.3px;
  background: linear-gradient(90deg, var(--TEXTO_PRINCIPAL), #cde8ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: clamp(22px, 3.2vw, 34px);
}

/* --- Toggle (hamburguesa) --- */
.menu-toggle {
  display: none; /* solo en mobile */
  appearance: none;
  -webkit-tap-highlight-color: transparent;
  background: var(--FONDO_CARDS);
  border: 1px solid var(--BORDE);
  color: var(--TEXTO_PRINCIPAL);
  border-radius: 10px;
  width: 44px; height: 44px;
  cursor: pointer;
  transition: transform var(--TRANS), border-color var(--TRANS), background var(--TRANS);
  position: relative;
  z-index: 5;
}
.menu-toggle:hover { transform: scale(1.04); border-color: var(--PRIMARIO) }
.menu-toggle:focus-visible { outline: 2px solid var(--FOCUS); outline-offset: 2px }

/* Icono hamburguesa animado -> X */
.menu-toggle .burger,
.menu-toggle .burger::before,
.menu-toggle .burger::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 22px; height: 2px;
  background: var(--TEXTO_PRINCIPAL);
  transform: translateX(-50%);
  transition: transform var(--TRANS), opacity var(--TRANS), top var(--TRANS), bottom var(--TRANS);
  border-radius: 2px;
}
.menu-toggle .burger { top: 50%; transform: translate(-50%, -50%) }
.menu-toggle .burger::before { top: -7px }
.menu-toggle .burger::after  { bottom: -7px }
.menu-toggle[aria-expanded="true"] .burger { transform: translate(-50%, -50%) rotate(45deg) }
.menu-toggle[aria-expanded="true"] .burger::before { top: 0; transform: translateX(-50%) rotate(90deg) }
.menu-toggle[aria-expanded="true"] .burger::after  { bottom: 0; transform: translateX(-50%) rotate(90deg) }

/* --- Nav (desktop) --- */
.nave {
  max-width: 1200px;
  margin: 0 auto 12px;
  padding-inline: clamp(16px, 4vw, 28px);
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.nave-1 {
  text-decoration: none;
  color: var(--TEXTO_PRINCIPAL);
  background: var(--FONDO_CARDS);
  border: 1px solid var(--BORDE);
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 15px;
  transition: border-color var(--TRANS), color var(--TRANS), background var(--TRANS), transform var(--TRANS);
}
.nave-1:hover {
  border-color: var(--PRIMARIO);
  color: var(--PRIMARIO);
  transform: translateY(-1px);
  background: #0f141c;
}

/* Link activo */
.nave-1[aria-current="page"],
.nave-1.active {
  border-color: var(--PRIMARIO);
  color: var(--PRIMARIO);
}

/* ========== MOBILE (drop-down bajo el header) ========== */
@media (max-width: 768px) {
  .header-content {
    position: sticky; top: 0; z-index: 20;
    padding-block: 10px;
    min-height: var(--header-h);
  }

  .menu-toggle { display: inline-block }

  /* Nav colapsado por altura */
  header.navegador .nave {
    position: static;
    width: 100%;
    margin: 0;
    padding: 0 clamp(16px, 4vw, 28px);
    background: rgba(10,13,18,.95);
    border-bottom: 1px solid var(--BORDE);

    display: block;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-6px);
    transition:
      max-height 280ms ease,
      opacity 220ms ease,
      transform 220ms ease,
      padding-top 220ms ease,
      padding-bottom 220ms ease;
  }

  header.navegador .nave.show {
    max-height: 80vh;
    opacity: 1;
    transform: none;
    padding-top: 12px;
    padding-bottom: 16px;
  }

  header.navegador .nave-1 {
    display: block;
    width: 100%;
    text-align: center;
    font-size: 18px;
    margin: 8px 0;
  }
}