/* ==========================================================================
   LAYOUT.CSS
   Header, menú móvil, buscador overlay, footer, botón flotante WhatsApp
   y contenedores de héroe (hero). Estructura idéntica en TODAS las
   páginas del sitio (ver /Anexo Técnico — "Arquitectura de Componentes
   Globales y Layouts Maestros").
   ========================================================================== */

/* ---------------------------------------------------------------------- */
/* HEADER                                                                  */
/* ---------------------------------------------------------------------- */

.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: var(--z-header);
  padding-block: var(--space-4);
  background: linear-gradient(180deg, rgba(0, 14, 56, 0.65) 0%, rgba(0, 14, 56, 0) 100%);
  transition: background-color var(--dur-normal) var(--ease-standard), padding var(--dur-normal) var(--ease-standard), box-shadow var(--dur-normal) var(--ease-standard);
}

.site-header.is-solid {
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  padding-block: var(--space-3);
}

.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
  order: 2;
}

.site-header__logo-img { display: none; height: 2rem; width: auto; }
.site-header__logo-img--white { display: block; }
.site-header.is-solid .site-header__logo-img--white { display: none; }
.site-header.is-solid .site-header__logo-img--color { display: block; }

.site-header__nav ul {
  display: flex;
  gap: var(--space-6);
}

.site-header__nav a {
  color: var(--color-white);
  font-weight: var(--fw-medium);
  font-size: var(--fs-200);
  padding-block: var(--space-2);
  border-bottom: 2px solid transparent;
  transition: color var(--dur-fast), border-color var(--dur-fast);
}

.site-header.is-solid .site-header__nav a {
  color: var(--color-navy-800);
}

.site-header__nav a:hover,
.site-header__nav a[aria-current="page"] {
  border-bottom-color: var(--color-green-600);
}

.site-header__nav a[aria-current="page"] {
  font-weight: var(--fw-bold);
}

.site-header__right {
  order: 3;
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.site-header__contact-mobile {
  order: 1;
}

.site-header__icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  color: var(--color-white);
}

.site-header__icon-btn img { width: 1.25rem; height: 1.25rem; }

.site-header.is-solid .site-header__icon-btn img {
  filter: invert(100%);
}

.site-header__menu-label {
  color: var(--color-white);
  font-size: var(--fs-200);
  font-weight: var(--fw-medium);
}

.site-header.is-solid .site-header__menu-label { color: var(--color-navy-800); }

.site-header__burger {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.3125rem;
  width: 2.5rem;
  height: 2.5rem;
}

.site-header__burger span {
  display: block;
  width: 1.375rem;
  height: 0.125rem;
  background: var(--color-white);
  transition: background-color var(--dur-fast);
}

.site-header.is-solid .site-header__burger span {
  background: var(--color-navy-800);
}

@media (max-width: 1023.98px) {
  .site-header__nav { display: none; }
}

@media (min-width: 1024px) {
  .site-header__bar { justify-content: initial; }
  .site-header__nav--left { order: 1; flex: 1; }
  .site-header__logo { order: 2; }
  .site-header__right { order: 3; flex: 1; justify-content: flex-end; }
  .site-header__nav--right ul { margin-inline-end: var(--space-5); }
  .site-header__contact-mobile { display: none; }
  .site-header__menu-label,
  .site-header__burger { display: none; }
}

/* ---------------------------------------------------------------------- */
/* MENÚ MÓVIL (off-canvas)                                                 */
/* ---------------------------------------------------------------------- */

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
}

.mobile-menu[hidden] { display: none; }

.mobile-menu__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 8, 32, 0.55);
}

.mobile-menu__panel {
  position: absolute;
  inset-block: 0;
  inset-inline-end: 0;
  width: min(22.5rem, 86vw);
  background: var(--color-navy-800);
  padding: var(--space-6) var(--space-6) var(--space-8);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  animation: slide-in var(--dur-slow) var(--ease-standard);
}

@keyframes slide-in {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

.mobile-menu__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.mobile-menu__label {
  color: var(--color-gray-300);
  font-size: var(--fs-200);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mobile-menu__close {
  color: var(--color-white);
  font-size: var(--fs-600);
  line-height: 1;
  width: 2.5rem;
  height: 2.5rem;
}

.mobile-menu__list li {
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.mobile-menu__list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--color-white);
  font-size: var(--fs-500);
  padding-block: var(--space-4);
  font-weight: var(--fw-regular);
}

.mobile-menu__list a[aria-current="page"] {
  font-weight: var(--fw-bold);
}

.mobile-menu__list a img { width: 1.125rem; height: 1.125rem; }

.mobile-menu__cta {
  margin-top: var(--space-6);
}

@media (min-width: 1024px) {
  .mobile-menu { display: none !important; }
}

/* ---------------------------------------------------------------------- */
/* BUSCADOR (overlay)                                                      */
/* ---------------------------------------------------------------------- */

.search-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
}

.search-overlay[hidden] { display: none; }

.search-overlay__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 8, 32, 0.75);
}

.search-overlay__panel {
  position: relative;
  max-width: 45rem;
  margin: 12vh auto 0;
  padding-inline: var(--space-5);
}

.search-overlay__form {
  display: flex;
  gap: var(--space-3);
  background: var(--color-white);
  padding: var(--space-3);
  border-radius: var(--radius-md);
}

.search-overlay__form input {
  flex: 1;
  border: none;
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-400);
}

.search-overlay__form input:focus { outline: none; }

.search-overlay__close {
  position: absolute;
  top: -3rem;
  right: var(--space-5);
  color: var(--color-white);
  font-size: var(--fs-600);
  width: 2.5rem;
  height: 2.5rem;
}

/* ---------------------------------------------------------------------- */
/* BOTÓN FLOTANTE WHATSAPP                                                 */
/* ---------------------------------------------------------------------- */

.whatsapp-fab {
  position: fixed;
  inset-block-end: var(--space-5);
  inset-inline-end: var(--space-5);
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: var(--color-white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: 90;
  transition: transform var(--dur-fast);
}

.whatsapp-fab:hover { transform: scale(1.08); }
.whatsapp-fab img { width: 3.5rem; height: 3.5rem; }

/* ---------------------------------------------------------------------- */
/* HERO                                                                    */
/* ---------------------------------------------------------------------- */

.hero {
  position: relative;
  overflow: hidden;
  min-height: 62vh;
  display: flex;
  align-items: flex-end;
  color: var(--color-white);
}

.hero--tall { min-height: 88vh; }

.hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 14, 56, 0.55) 0%, rgba(0, 14, 56, 0.75) 100%);
}

.hero__content {
  position: relative;
  padding-block: var(--space-8) var(--space-7);
  width: 100%;
}

.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.4em;
  font-size: var(--fs-300);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
}

.hero__title {
  color: var(--color-white);
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  font-size: var(--fs-800);
  letter-spacing: 0.05em;
  max-width: 16ch;
}

.hero--page {
  min-height: 46vh;
  align-items: center;
}

.hero--page .hero__content {
  text-align: center;
}

.hero--page .hero__title {
  letter-spacing: 0.3em;
  font-size: var(--fs-700);
  max-width: none;
  margin-inline: auto;
}

/* Hero tipo "diagonal" (Blog artículo / Contacto): franja azul con cuña verde */
.hero--diagonal {
  min-height: 32vh;
  background: var(--color-navy-800);
  align-items: center;
}

.hero--diagonal .hero__wedge {
  position: absolute;
  inset-block: 0;
  inset-inline-start: 0;
  width: 46%;
  background: var(--color-green-600);
  clip-path: polygon(0 0, 42% 0, 18% 55%, 0 30%);
}

.hero--diagonal .hero__content {
  padding-block: var(--space-6);
  text-align: center;
}

.hero--diagonal .hero__title {
  font-size: var(--fs-800);
  letter-spacing: 0.02em;
  max-width: none;
  margin-inline: auto;
}

@media (min-width: 768px) {
  .hero__title { font-size: var(--fs-800); }
}

/* ---------------------------------------------------------------------- */
/* SLIDER DEL HERO (home)                                                  */
/* ---------------------------------------------------------------------- */

.hero-slider__slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-slow) var(--ease-standard);
}

.hero-slider__slide.is-active {
  opacity: 1;
  visibility: visible;
  z-index: 1;
}

.hero-slider__dots {
  position: absolute;
  inset-block-end: var(--space-6);
  inset-inline-start: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  z-index: 2;
}

.hero-slider__dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  padding: 0;
}

.hero-slider__dot.is-active {
  width: 1.75rem;
  border-radius: var(--radius-pill);
  background: var(--color-white);
}

/* ---------------------------------------------------------------------- */
/* BREADCRUMB "REGRESAR"                                                   */
/* ---------------------------------------------------------------------- */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-navy-800);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-200);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.back-link img { width: 1.375rem; height: 1.375rem; transform: rotate(180deg); }

/* ---------------------------------------------------------------------- */
/* FOOTER                                                                   */
/* ---------------------------------------------------------------------- */

.site-footer__top {
  background: var(--color-green-600);
  color: var(--color-white);
  padding-block: var(--space-8);
}

.site-footer__top-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-7);
}

@media (min-width: 768px) {
  .site-footer__top-inner {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    align-items: start;
    gap: var(--space-6);
  }
  .site-footer__links { grid-column: span 3; }
  .site-footer__newsletter {
    grid-column: span 9;
    max-width: none;
    padding-inline-start: var(--space-5);
  }
}

.site-footer__links ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.site-footer__links a {
  color: var(--color-white);
  font-size: var(--fs-400);
  padding-bottom: var(--space-1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  display: inline-block;
}

.site-footer__newsletter-label {
  font-size: var(--fs-500);
}

.site-footer__newsletter-title {
  color: var(--color-white);
  font-size: var(--fs-700);
  margin-bottom: var(--space-5);
}

.newsletter-form {
  display: flex;
  background: var(--color-white);
  border-radius: var(--radius-pill);
  padding: var(--space-1);
  max-width: 28.75rem;
  gap: var(--space-2);
}

.newsletter-form input {
  flex: 1;
  border: none;
  background: transparent;
  padding-inline: var(--space-4);
  font-size: var(--fs-300);
  color: var(--color-text);
}

.newsletter-form input:focus { outline: none; }

.site-footer__newsletter-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.site-footer__social {
  display: flex;
  gap: var(--space-3);
}

.site-footer__social a {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--dur-fast);
}

.site-footer__social a:hover { background: rgba(255, 255, 255, 0.35); }
.site-footer__social img { width: 1.375rem; height: 1.375rem; }

.back-to-top {
  flex-shrink: 0;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: var(--radius-sm);
  background: var(--color-white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--dur-fast);
}
.back-to-top:hover { background: var(--color-gray-200); }
.back-to-top img { width: 1.5rem; height: 1.5rem; }

.site-footer__bottom {
  background: var(--color-black);
  color: var(--color-gray-300);
  padding-block: var(--space-4);
}

.site-footer__bottom-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  font-size: var(--fs-100);
}

.site-footer__bottom-inner nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
}

.site-footer__bottom-inner nav li:not(:last-child)::after {
  content: "|";
  margin-inline-start: var(--space-3);
  color: var(--color-gray-300);
  opacity: 0.5;
}

.site-footer__bottom-inner a { color: var(--color-gray-300); }

@media (min-width: 768px) {
  .site-footer__bottom-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}