/**
 * Shared layout: header, nav, footer
 * This file is the single source of truth for site header & footer styles.
 * Loaded by ALL pages (index.html, about.html, etc.)
 */

html {
  scrollbar-gutter: stable;
}

/* ----- Site header ----- */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
}

.lang-switch__link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 600;
}

.lang-switch__link:hover,
.lang-switch__link.is-active {
  color: var(--color-primary);
  text-decoration: none;
}

.lang-switch__sep {
  color: var(--color-border);
  user-select: none;
}

@media (min-width: 900px) {
  .site-header__inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--space-4);
  }

  .site-logo {
    justify-self: start;
  }

  .site-nav {
    justify-self: center;
  }

  .header-actions {
    margin-left: 0;
    justify-self: end;
  }
}

.site-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  line-height: 0;
  text-decoration: none;
}

.site-logo:hover {
  text-decoration: none;
  opacity: 0.88;
}

.site-logo:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.site-logo__img {
  display: block;
  height: 1.875rem;
  width: auto;
  max-width: min(11.5rem, 42vw);
  object-fit: contain;
}

@media (min-width: 900px) {
  .site-logo__img {
    height: 2rem;
    max-width: 13rem;
  }
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.nav-toggle__bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-charcoal);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.site-header.is-open .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header.is-open .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.site-header.is-open .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 900px) {
  .nav-toggle {
    display: none;
  }
}

.site-nav {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.site-header.is-open .site-nav {
  max-height: 40rem;
  box-shadow: var(--shadow-md);
}

.site-nav__list {
  list-style: none;
  margin: 0;
  padding: var(--space-4) var(--container-pad) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.site-nav__item {
  position: relative;
}

.site-nav__link-row {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.site-nav__link-row .site-nav__link {
  flex: 1;
}

.site-nav__list a,
.site-nav__link {
  display: block;
  padding: var(--space-3) var(--space-2);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-heading);
  text-decoration: none;
  border-radius: var(--radius-md);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.site-nav__list a:hover,
.site-nav__list a.is-active,
.site-nav__link:hover,
.site-nav__link.is-active {
  background: var(--color-surface-alt);
  color: var(--color-primary);
  text-decoration: none;
}

.site-nav__submenu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-heading);
  cursor: pointer;
}

.site-nav__submenu-toggle:hover,
.site-nav__submenu-toggle:focus-visible {
  background: var(--color-surface-alt);
  color: var(--color-primary);
}

.site-nav__submenu-toggle-icon {
  display: block;
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--transition-base);
}

.site-nav__item--has-children.is-open .site-nav__submenu-toggle-icon {
  transform: rotate(-135deg);
}

.site-nav__submenu {
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--space-4);
  display: none;
}

.site-nav__item--has-children.is-open > .site-nav__submenu {
  display: block;
}

.site-nav__item--has-children.is-open > .site-nav__link-row .site-nav__link {
  background: var(--color-surface-alt);
  color: var(--color-primary);
}

.site-nav__submenu li {
  border-bottom: 1px solid var(--color-border);
}

.site-nav__submenu li:last-child {
  border-bottom: none;
}

.site-nav__submenu a {
  font-weight: 500;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

@media (min-width: 900px) {
  .site-nav {
    position: static;
    max-height: none;
    overflow: visible;
    border: none;
    background: transparent;
    box-shadow: none;
  }

  .site-header.is-open .site-nav {
    box-shadow: none;
  }

  .site-nav__list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-1);
    padding: 0;
  }

  .site-nav__list a,
  .site-nav__link {
    padding: var(--space-2) var(--space-3);
    background: transparent;
  }

  .site-nav__list a:hover,
  .site-nav__list a.is-active,
  .site-nav__link:hover,
  .site-nav__link.is-active {
    background: var(--color-surface-alt);
  }

  .site-nav__submenu-toggle {
    display: none;
  }

  .site-nav__link-row {
    display: block;
  }

  .site-nav__submenu {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 14rem;
    padding: var(--space-2);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(0.35rem);
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
    z-index: 120;
  }

  .site-nav__item--has-children:hover > .site-nav__submenu,
  .site-nav__item--has-children:focus-within > .site-nav__submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav__item--has-children:hover > .site-nav__link-row .site-nav__link,
  .site-nav__item--has-children:focus-within > .site-nav__link-row .site-nav__link {
    background: var(--color-surface-alt);
    color: var(--color-primary);
  }

  .site-nav__submenu a {
    white-space: nowrap;
  }
}

/* ----- Nav CTA button ----- */
.btn--nav-cta {
  background: var(--color-accent-cta);
  color: var(--color-white);
  border-color: var(--color-accent-cta);
}

.btn--nav-cta:hover {
  background: var(--color-accent-cta-hover);
  border-color: var(--color-accent-cta-hover);
  color: var(--color-white);
}

/* ----- Footer ----- */
.site-footer {
  background: var(--color-fomex-green);
  color: rgba(255, 255, 255, 0.92);
  padding: var(--space-12) 0 var(--space-8);
  margin-top: 1px;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
}

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

.site-footer__grid {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 640px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .site-footer__grid {
    grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  }
}

.site-footer__brand {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-xl);
  color: var(--color-white);
  margin-bottom: var(--space-2);
}

.site-footer__tagline {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.85);
  margin: 0 0 var(--space-4);
  line-height: var(--leading-relaxed);
}

.site-footer__trust {
  font-size: var(--text-sm);
  color: #a0d96e;
  margin: 0;
}

.site-footer__col h4,
.site-footer__heading {
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-white);
  margin: 0 0 var(--space-4);
  font-weight: 600;
}

.site-footer__links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer__links li {
  margin-bottom: var(--space-2);
}

.site-footer__address {
  font-style: normal;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.65;
  margin: 0 0 var(--space-4);
}

.site-footer__address-link {
  color: inherit;
  text-decoration: none;
}

.site-footer__address-link:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.site-footer__bottom {
  margin: var(--space-8) calc(-1 * var(--container-pad)) 0;
  padding: var(--space-5) var(--container-pad);
  background: rgba(0, 0, 0, 0.2);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.65);
}

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

.site-footer__bottom-start {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3) var(--space-6);
}

.site-footer__copyright {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
}

.site-footer__legal a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
}

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

.site-footer__legal-sep {
  user-select: none;
  color: rgba(255, 255, 255, 0.35);
}

.site-footer__social {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
}

.site-footer__social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.75rem;
  min-height: 2.75rem;
  border-radius: var(--radius-md);
  color: rgba(255, 255, 255, 0.75);
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast);
}

.site-footer__social-link:hover {
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.12);
}

.site-footer__social-icon {
  display: block;
  width: 1.375rem;
  height: 1.375rem;
}

@media (max-width: 39.9375rem) {
  .site-footer__bottom-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .site-footer__bottom-start {
    flex-direction: column;
    text-align: center;
  }

  .site-footer__social {
    justify-content: center;
  }
}

/* Force logo size */
.site-logo img {
  height: 40px !important;
  width: auto !important;
  object-fit: contain;
}

.site-footer__brand img {
  height: 70px !important;
  width: auto !important;
  object-fit: contain;
  background-color: var(--color-white);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
}

/* ================================================================
   MOBILE MENU ACTIONS & FOOTER OVERRIDES
   ================================================================ */

/* Hide primary header actions on mobile */
.header-actions .lang-switch,
.header-actions .btn--nav-cta {
  display: none;
}

/* Mobile dropdown actions wrapper */
.site-nav__mobile-actions {
  display: flex;
  flex-direction: column;
  padding: var(--space-4) var(--container-pad) var(--space-6);
  gap: var(--space-4);
  border-top: 1px solid var(--color-surface-alt);
  margin-top: auto;
}

.site-nav__mobile-actions .lang-switch {
  display: flex;
}

.site-nav__mobile-actions .btn--nav-cta {
  width: 100%;
  justify-content: center;
}

/* Restore primary actions on desktop */
@media (min-width: 900px) {
  .header-actions .lang-switch {
    display: flex;
  }

  .header-actions .btn--nav-cta {
    display: inline-flex;
  }

  .site-nav__mobile-actions {
    display: none;
  }
}