/* ============================================================
   UTILIDAD: CONTAINER
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad-x);
}

/* ============================================================
   COMPONENTE: BOTÓN
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  line-height: 1;
  border: var(--border-width-md) solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

/* Primario — amarillo sobre negro */
.btn--primary {
  background-color: var(--color-yellow);
  color: var(--color-black);
  border-color: var(--color-yellow);
}

.btn--primary:hover {
  background-color: var(--color-yellow-dim);
  border-color: var(--color-yellow-dim);
  box-shadow: var(--shadow-glow);
}

.btn--primary:active {
  background-color: var(--color-yellow-dim);
}

/* Outline — borde blanco con fondo transparente */
.btn--outline {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.55);
}

.btn--outline:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: var(--color-white);
}

/* Tamaño grande — usado en hero */
.btn--lg {
  padding: clamp(var(--space-3), 1.5vw, var(--space-4)) clamp(var(--space-6), 3.5vw, var(--space-8));
  font-size: clamp(var(--font-size-base), 1.8vw, var(--font-size-lg));
  border-radius: var(--radius-lg);
}

/* ============================================================
   COMPONENTE: NAVBAR
   ============================================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
}

/* Fondo con blur — usa pseudo-elemento para no interferir con contenido */
.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: var(--color-black);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  opacity: 0;
  border-bottom: var(--border-width) solid transparent;
  transition:
    opacity var(--transition-base),
    border-color var(--transition-base);
  pointer-events: none;
}

.site-header.is-scrolled::before {
  opacity: 0.96;
  border-bottom-color: var(--color-black-mid);
}

.navbar {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--navbar-height);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad-x);
}

/* Logo tipográfico */
.navbar__logo {
  font-size: clamp(var(--font-size-lg), 2.2vw, var(--font-size-xl));
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.025em;
  color: var(--color-white);
  text-decoration: none;
  flex-shrink: 0;
  line-height: 1;
  user-select: none;
}

.navbar__logo .accent {
  color: var(--color-yellow);
}

/* Links desktop — ocultos en móvil */
.navbar__links {
  display: none;
  align-items: center;
  gap: var(--space-8);
}

.navbar__links a {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  text-decoration: none;
  transition: color var(--transition-fast);
  padding-bottom: 2px;
}

/* Subrayado amarillo en hover */
.navbar__links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-yellow);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

.navbar__links a:hover {
  color: var(--color-white);
}

.navbar__links a:hover::after,
.navbar__links a[aria-current="page"]::after {
  width: 100%;
}

/* Zona CTA + hamburger */
.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.navbar__cta {
  padding: var(--space-2) var(--space-5);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
}

/* Botón hamburger */
.navbar__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: var(--space-2);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: background-color var(--transition-fast);
}

.navbar__hamburger:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.navbar__hamburger__bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: currentColor;
  border-radius: var(--radius-full);
  transform-origin: center;
  transition:
    transform var(--transition-base),
    opacity var(--transition-fast);
}

/* Transición a ✕ cuando el menú está abierto */
.navbar__hamburger[aria-expanded="true"] .navbar__hamburger__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.navbar__hamburger[aria-expanded="true"] .navbar__hamburger__bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.navbar__hamburger[aria-expanded="true"] .navbar__hamburger__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Panel menú móvil — cajón lateral derecho */
.navbar__mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 85vw);
  background-color: var(--color-black-soft);
  border-left: var(--border-width) solid var(--color-black-mid);
  z-index: calc(var(--z-overlay) + 1);
  display: flex;
  flex-direction: column;
  padding: var(--space-5) var(--space-6) var(--space-8);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}

.navbar__mobile-menu.is-open {
  transform: translateX(0);
}

.navbar__mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--navbar-height);
  margin-bottom: var(--space-8);
}

.navbar__mobile-menu__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-white);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: background-color var(--transition-fast);
}

.navbar__mobile-menu__close:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

/* Links en el panel móvil */
.navbar__mobile-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  flex: 1;
}

.navbar__mobile-links a {
  display: block;
  padding: var(--space-3) var(--space-3);
  font-size: clamp(var(--font-size-base), 4vw, var(--font-size-lg));
  font-weight: var(--font-weight-medium);
  color: rgba(255, 255, 255, 0.75);
  border-radius: var(--radius-md);
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast);
}

.navbar__mobile-links a:hover {
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.06);
}

/* CTA en el panel móvil */
.navbar__mobile-cta {
  margin-top: var(--space-8);
  width: 100%;
  padding-block: var(--space-4);
  font-size: var(--font-size-base);
}

/* Overlay oscuro detrás del panel */
.nav-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.65);
  z-index: var(--z-overlay);
  opacity: 0;
  pointer-events: none;
  cursor: pointer;
  transition: opacity var(--transition-base);
}

.nav-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* ─── Desktop: mostrar links, ocultar hamburger ─── */
@media (min-width: 768px) {
  .navbar__links {
    display: flex;
  }

  .navbar__hamburger {
    display: none;
  }
}