/* layout.css — nav, secciones, grids estructurales, footer, responsive base */

/* ===== BASE ===== */
html {
  scroll-padding-top: var(--nav-h); /* compensa la nav fija en saltos de ancla */
}

body {
  font-family: var(--font-body);
  background-color: var(--dark-bg);
  color: var(--white);
  overflow-x: hidden;
}

/* ===== SKIP LINK (accesibilidad) ===== */
.skip-link {
  position: absolute;
  top: -9999px;
  left: 1rem;
  z-index: 9999;
  background: var(--gold);
  color: var(--dark-bg);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.6rem 1.2rem;
  border-radius: var(--r-sm);
}

.skip-link:focus {
  top: 1rem;
}

/* ===== DESKTOP: reducción de espaciado vertical ===== */
@media (min-width: 769px) {
  :root {
    --sp-3xl: 4rem;   /* era 8rem — secciones más compactas */
    --sp-2xl: 2.5rem; /* era 5rem */
    --sp-xl:  2rem;   /* era 3rem */
  }
}

/* ===== CANVAS FONDO 3D ===== */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* Viñeta perimetral para centrar la atención */
.vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(
    ellipse 80% 80% at 50% 50%,
    transparent 35%,
    rgba(0, 0, 0, 0.55) 75%,
    rgba(0, 0, 0, 0.85) 100%
  );
}

/* ===== CONTENEDOR ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* Todo el contenido visible por encima del canvas */
main, footer {
  position: relative;
  z-index: 2;
}

/* El header debe estar por encima de main/footer para que
   el overlay del nav móvil tape cualquier contenido (incluido el mapa) */
header {
  position: relative;
  z-index: 1000;
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 10000;
  border-bottom: 1px solid transparent;
  transition:
    background var(--t-med) var(--ease-inout),
    border-color var(--t-med) var(--ease-inout),
    backdrop-filter var(--t-med) var(--ease-inout);
}

.nav.scrolled {
  background: rgba(9, 9, 9, 0.82);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border-bottom-color: var(--border-subtle);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--sp-lg);
}

.nav__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  user-select: none;
}

.nav__logo-img {
  height: 38px;
  width: auto;
  display: block;
  /* Si el logo es negro/oscuro (diseñado para fondo claro), descomentá la línea siguiente: */
  /* filter: brightness(0) invert(1); */
  transition: opacity var(--t-fast) var(--ease-out);
}

.nav__logo:hover .nav__logo-img {
  opacity: 0.82;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-lg);
}

.nav__link {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--white-dim);
  transition: color var(--t-fast) var(--ease-out);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-med) var(--ease-out);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--white);
}

.nav__link.active-link {
  color: var(--white);
}

.nav__link.active-link::after {
  transform: scaleX(1);
}

/* ===== NAV DROPDOWN ===== */
.nav__item {
  position: relative;
  display: flex;
  align-items: center;
}

.nav__item--dropdown {
  gap: 0;
}

.nav__dropdown-link {
  /* Mantiene estilos de .nav__link */
}

.nav__dropdown-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px 3px;
  color: var(--white-dim);
  transition: color var(--t-fast) var(--ease-out);
}

.nav__dropdown-toggle:hover {
  color: var(--white);
}

.nav__dropdown-arrow {
  transition: transform var(--t-med) var(--ease-out);
}

.nav__item--dropdown:hover .nav__dropdown-arrow,
.nav__item--dropdown.open .nav__dropdown-arrow {
  transform: rotate(180deg);
}

.nav__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  min-width: 230px;
  background: rgba(9, 9, 9, 0.97);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border: 1px solid var(--gold-border);
  border-radius: var(--r-md);
  padding: 0.45rem 0;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity   var(--t-med) var(--ease-out),
    transform var(--t-med) var(--ease-out);
  z-index: 200;
}

/* Puente invisible entre trigger y dropdown para no perder el hover */
.nav__dropdown::after {
  content: '';
  position: absolute;
  top: -12px;
  left: 0;
  right: 0;
  height: 12px;
}

/* Triángulo indicador */
.nav__dropdown::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-bottom: 6px solid var(--gold-border);
}

/* Mostrar en hover (desktop) */
@media (min-width: 769px) {
  .nav__item--dropdown:hover .nav__dropdown,
  .nav__item--dropdown.open  .nav__dropdown {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
  }
}

.nav__dropdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-md);
  padding: 0.62rem 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--white-dim);
  transition:
    color      var(--t-fast) var(--ease-out),
    background var(--t-fast) var(--ease-out);
  white-space: nowrap;
}

.nav__dropdown-item:hover {
  color: var(--gold);
  background: rgba(201, 168, 76, 0.07);
}

.nav__dropdown-cc {
  font-size: 0.52rem;
  letter-spacing: 0.10em;
  color: rgba(245, 245, 245, 0.28);
  font-weight: 400;
  text-transform: none;
  flex-shrink: 0;
}

.nav__dropdown-item:hover .nav__dropdown-cc {
  color: rgba(201, 168, 76, 0.55);
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px 4px;
  z-index: 10001;
}

.nav__hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--white);
  transition:
    transform var(--t-med) var(--ease-out),
    opacity var(--t-fast) var(--ease-out);
  transform-origin: center;
}

.nav__hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ===== SECCIONES ===== */
.section {
  padding-block: var(--sp-3xl);
}

.section__header {
  text-align: center;
  margin-bottom: var(--sp-2xl);
}

.section__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.30em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--sp-sm);
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.9rem); /* era hasta 3.5rem */
  font-weight: 900;
  color: var(--white);
  margin-bottom: var(--sp-sm);
}

.section__subtitle {
  font-size: 1rem;
  color: var(--white-dim);
  max-width: 460px;
  margin-inline: auto;
  line-height: 1.65;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  position: relative;
}

.hero__content {
  max-width: 740px;
  padding-block: var(--sp-xl);  /* era --sp-3xl — menos espacio interior en hero */
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--sp-md);
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 5.5vw, 4.6rem); /* era hasta 6.5rem — reduce de 3 a 2 líneas */
  font-weight: 900;
  letter-spacing: -0.025em;
  color: var(--white);
  margin-bottom: var(--sp-lg);
}

.hero__subtitle {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: var(--white-dim);
  line-height: 1.75;
  margin-bottom: var(--sp-lg);
  max-width: 480px;
}

/* Tira de modelos */
.hero__model-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--white-dim);
  padding: var(--sp-sm) 0;
  margin-bottom: var(--sp-xl);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.hero__strip-dot {
  font-size: 0.35rem;
  color: var(--gold);
  opacity: 0.7;
}

.hero__actions {
  display: flex;
  gap: var(--sp-sm);
  flex-wrap: wrap;
}

.hero__scroll-hint {
  position: absolute;
  bottom: var(--sp-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--white-dim);
  opacity: 0.55;
}

.hero__scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, rgba(245, 245, 245, 0.4), transparent);
  animation: scrollHint 2.2s ease-in-out infinite;
}

/* ===== MODELOS — padding top extra por nav fija ===== */
.modelos {
  padding-top: calc(var(--sp-xl) + var(--nav-h)); /* era --sp-3xl, demasiado */
}

/* ===== TECNOLOGÍA ===== */
.tech-section__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3xl);
  align-items: center;
}

.tech-section__text {
  max-width: 540px;
}

.tech-section__body {
  color: var(--white-dim);
  margin-bottom: var(--sp-md);
  line-height: 1.78;
  font-size: 0.97rem;
}

/* ===== CONTACT SECTION ===== */
.contact-section {
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(201, 168, 76, 0.025) 50%,
    transparent 100%
  );
}

/* ===== SOBRE NOSOTROS ===== */
.nosotros-section {
  border-top: 1px solid var(--border-subtle);
}

.nosotros__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--sp-2xl);
  align-items: start;
}

.nosotros__text {
  max-width: 580px;
}

.nosotros__body {
  color: var(--white-dim);
  font-size: 0.97rem;
  line-height: 1.78;
  margin-bottom: var(--sp-md);
}

.nosotros__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-md);
  flex-shrink: 0;
  width: 280px;
}

.nosotros__stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: var(--sp-md);
  background: var(--dark-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  transition: border-color var(--t-med) var(--ease-out);
}

.nosotros__stat:hover {
  border-color: var(--gold-border);
}

.nosotros__stat-num {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
  letter-spacing: -0.02em;
}

.nosotros__stat-unit {
  font-size: 0.7em;
  letter-spacing: 0;
}

.nosotros__stat-label {
  font-family: var(--font-mono);
  font-size: 0.52rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--white-dim);
  line-height: 1.4;
}

@media (max-width: 900px) {
  .nosotros__inner {
    grid-template-columns: 1fr;
  }
  .nosotros__stats {
    width: 100%;
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 600px) {
  .nosotros__stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--sp-2xl);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--sp-2xl);
  padding-bottom: var(--sp-2xl);
}

.footer__tagline {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  color: var(--white-dim);
  margin-top: var(--sp-sm);
}

.footer__nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-lg);
}

.footer__nav-heading {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--sp-sm);
}

.footer__link {
  display: block;
  font-size: 0.85rem;
  color: var(--white-dim);
  margin-bottom: 0.55rem;
  transition: color var(--t-fast) var(--ease-out);
}

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

.footer__address {
  cursor: default;
}

.footer__bottom {
  border-top: 1px solid var(--border-subtle);
  padding-block: var(--sp-sm);
}

.footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__legal {
  font-size: 0.72rem;
  color: rgba(245, 245, 245, 0.25);
}

.footer__social {
  display: flex;
  gap: var(--sp-md);
}

.footer__social-link {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--white-dim);
  transition: color var(--t-fast) var(--ease-out);
}

.footer__social-link:hover {
  color: var(--gold);
}

/* ===== RESPONSIVE ===== */

@media (max-width: 1024px) {
  .tech-section__inner {
    grid-template-columns: 1fr;
    gap: var(--sp-xl);
  }

  .tech-section__text {
    max-width: 100%;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: var(--sp-lg);
  }
}

/* ===== NAV BACKDROP (hijo directo de body → stacking context raíz) ===== */
/* z-index: 9998 al nivel raíz garantiza que tapa main (z-index: 2) y
   queda por debajo del nav (z-index: 10000) donde están los links.
   Sin backdrop-filter para evitar bugs de compositing en Safari iOS. */
#nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 9998;
  background: rgba(9, 9, 9, 0.97);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-med) var(--ease-inout);
}

#nav-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

@media (min-width: 769px) {
  /* En desktop nunca debe aparecer */
  #nav-backdrop { display: none !important; }
}

@media (max-width: 768px) {
  :root {
    --sp-3xl: 4rem;
    --sp-2xl: 2.2rem;
    --container-pad: 1.1rem;
  }

  .nav__hamburger {
    display: flex;
  }

  .nav__links {
    position: fixed;
    inset: 0;
    flex-direction: column;
    /* flex-start + padding auto-centrado: evita el bug de justify-content:center
       con overflow-y:auto donde el scroll oculta ítems por arriba */
    justify-content: flex-start;
    align-items: center;
    /* Sin background ni backdrop-filter: el #nav-backdrop (hijo directo
       de body, nivel raíz) se encarga del fondo oscuro */
    background: transparent;
    transform: translateX(100%);
    transition: transform var(--t-med) var(--ease-out);
    gap: var(--sp-xl);
    z-index: 9999;
    overflow-y: auto;
    /* padding-block grande para que los ítems queden centrados visualmente
       en pantallas altas, y sean accesibles en pantallas bajas */
    padding-block: 30vh;
    padding-block: max(var(--sp-3xl), calc(50vh - 160px));
  }

  .nav__links.open {
    transform: translateX(0);
  }

  .nav__link {
    font-size: 1.1rem;
    letter-spacing: 0.22em;
  }

  /* Dropdown en móvil: inline dentro del overlay */
  .nav__item--dropdown {
    flex-direction: column;
    align-items: center;
    gap: 0;
    width: 100%;
  }

  /* En móvil se usa solo el botón toggle, el link queda oculto */
  .nav__dropdown-link {
    display: none;
  }

  .nav__dropdown-toggle {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--white-dim);
    width: auto;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0;
  }

  .nav__dropdown-toggle::before {
    content: 'Modelos';
  }

  .nav__dropdown {
    position: static;
    transform: none !important;
    opacity: 1;
    pointer-events: none;
    background: transparent;
    border: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-radius: 0;
    padding: 0;
    min-width: auto;
    width: 100%;
    text-align: center;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.38s ease-out, padding 0.28s ease-out;
  }

  .nav__dropdown::before {
    display: none;
  }

  .nav__item--dropdown.open .nav__dropdown {
    pointer-events: auto;
    max-height: 420px;
    padding-top: var(--sp-sm);
  }

  .nav__dropdown-item {
    justify-content: center;
    gap: var(--sp-sm);
    padding: 0.5rem 1rem;
    font-size: 0.82rem;
    letter-spacing: 0.14em;
  }

  .nav__dropdown-cc {
    font-size: 0.6rem;
  }

  /* Hero */
  .hero__title {
    font-size: clamp(2.2rem, 9vw, 4rem);
  }

  .hero__subtitle {
    font-size: 0.92rem;
    line-height: 1.65;
  }

  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-sm);
  }

  .hero__model-strip {
    font-size: 0.52rem;
  }

  /* Sections */
  .section__title {
    font-size: clamp(1.6rem, 6vw, 2.4rem);
  }

  .section__subtitle {
    font-size: 0.9rem;
  }

  /* Footer */
  .footer__inner {
    gap: var(--sp-lg);
  }

  .footer__nav {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-md);
  }

  .footer__bottom-inner {
    flex-direction: column;
    gap: var(--sp-sm);
    text-align: center;
  }

  /* Tech section: single column early */
  .tech-section__inner {
    gap: var(--sp-xl);
  }
}

@media (max-width: 480px) {
  :root {
    --container-pad: 1rem;
  }

  .hero__title {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  /* Footer 3 columnas en móvil */
  .footer__nav {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-sm);
  }

  .footer__nav-col {
    padding-bottom: 0;
    border-bottom: none;
  }

  .footer__nav-heading {
    font-size: 0.5rem;
    letter-spacing: 0.22em;
  }

  .footer__link {
    font-size: 0.75rem;
    margin-bottom: 0.45rem;
  }
}