/*
  Grupo Attia — Header y drawer mobile
*/

.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}

.site-header .header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  /* Mismo ancho y márgenes laterales que .container (var(--container)): el logo
     y el último botón quedan exactamente alineados con el contenido del hero
     debajo, en vez de respirar más ancho que el resto de la página. */
  width: var(--container);
}

@media (max-width: 900px) {
  .site-header .header-inner {
    gap: 1rem;
  }
}

/* Estado inicial: transparente sobre el hero, texto claro */
.site-header--transparent {
  color: var(--white);
}

.site-header--transparent .main-nav__link,
.site-header--transparent .lang-toggle,
.site-header--transparent .login-link {
  color: rgba(255, 255, 255, 0.92);
}

.site-header--transparent .logo-dark {
  display: none;
}

/* Estado con scroll: fondo sólido/blur */
.site-header.is-scrolled {
  background: rgba(15, 24, 33, 0.82);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 8px 30px rgba(15, 24, 33, 0.18);
}

/* Header claro (usado cuando no hay hero oscuro detrás, reservado a futuro) */
.site-header--light {
  color: var(--ink);
}

.site-header--light .logo-light {
  display: none;
}

.site-header--light.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: var(--line);
}

.header-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header-logo img {
  height: 36px;
  width: auto;
}

/* Nav principal */
.main-nav {
  display: none;
}

@media (min-width: 1280px) {
  .main-nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-inline: auto;
  }
}

/* Enlaces directos (Portafolio, Construcción, Contacto) son <a class="main-nav__link">
   sueltos, sin wrapper .main-nav__item ni mega menú: mismo estilo, sin flecha. */
.main-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.5em 0;
  color: inherit;
  white-space: nowrap;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

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

/* Right controls */
.header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

@media (max-width: 900px) {
  .header-right {
    gap: 0.55rem;
  }
}

.lang-toggle {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: inherit;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  padding: 0.45em 0.8em;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.site-header--transparent.is-scrolled .lang-toggle,
.site-header:not(.site-header--transparent) .lang-toggle {
  border-color: var(--line);
}

.lang-toggle:hover,
.lang-toggle:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
}

.header-cta {
  display: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.6em 1.15em;
}

@media (min-width: 640px) {
  .header-cta {
    display: inline-flex;
  }
}

/* Pantallas intermedias: botón y logo se contraen un poco antes de que el
   menú completo aparezca en desktop (1280px), para que nunca se sientan
   apretados contra el hamburger. */
@media (max-width: 900px) {
  .header-cta {
    padding: 0.55em 0.9em;
    font-size: 11px;
  }

  .header-logo img {
    height: 30px;
  }
}

/* Hamburger (mobile) */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 26px;
  padding: 4px;
}

@media (min-width: 1280px) {
  .hamburger {
    display: none;
  }
}

.hamburger__line {
  display: block;
  height: 2px;
  width: 100%;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Mobile drawer */
.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 24, 33, 0.55);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition);
  z-index: 199;
}

.mobile-drawer-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(360px, 88vw);
  background: var(--navy);
  color: var(--dark-text);
  z-index: 200;
  transform: translateX(100%);
  transition: transform var(--transition);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.mobile-drawer.is-open {
  transform: translateX(0);
}

@media (min-width: 1280px) {
  .mobile-drawer,
  .mobile-drawer-overlay {
    display: none;
  }
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.drawer-close {
  font-size: 20px;
  line-height: 1;
  padding: 0.4rem;
}

.drawer-nav {
  padding: 1rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.drawer-link {
  padding: 1rem 0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.drawer-link:hover,
.drawer-link:focus-visible {
  color: var(--gold);
}

.drawer-accordion {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.drawer-accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-align: left;
}

.drawer-accordion__chevron {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.drawer-accordion[data-open] .drawer-accordion__chevron {
  transform: rotate(180deg);
}

.drawer-accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--transition);
}

.drawer-accordion__panel > div {
  overflow: hidden;
}

.drawer-accordion[data-open] .drawer-accordion__panel {
  grid-template-rows: 1fr;
}

.drawer-accordion__link {
  display: block;
  padding: 0.65rem 0 0.65rem 0.75rem;
  font-size: 14px;
  color: var(--dark-muted);
  border-left: 1px solid rgba(255, 255, 255, 0.15);
}

.drawer-accordion__link:hover,
.drawer-accordion__link:focus-visible {
  color: var(--gold);
}

.drawer-footer {
  margin-top: auto;
  padding: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}