/* ==========================================================================
   Header & Footer — Baiona Natura
   ========================================================================== */

/* -- Site Header ------------------------------------------------------------ */
.bn-header {
  position: sticky;
  top: 0;
  z-index: var(--bn-z-sticky);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: var(--bn-border-width) solid var(--bn-color-border);
  transition: box-shadow var(--bn-transition-normal);
}

.bn-header--scrolled {
  box-shadow: var(--bn-shadow-md);
}

.bn-header__inner {
  display: flex;
  align-items: center;
  gap: var(--bn-space-4);
  height: 64px;
}

.bn-header__brand {
  display: flex;
  align-items: center;
  gap: var(--bn-space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.bn-header__logo {
  height: 44px;
  width: auto;
  border-radius: var(--bn-radius-md);
}

.bn-header__title {
  font-family: var(--bn-font-heading);
  font-size: var(--bn-text-lg);
  font-weight: var(--bn-font-weight-bold);
  color: var(--bn-color-text-heading);
  line-height: var(--bn-leading-tight);
}

.bn-header__tagline {
  font-size: var(--bn-text-xs);
  color: var(--bn-color-text-muted);
  display: none;
}

@media (min-width: 1024px) {
  .bn-header__tagline {
    display: block;
  }
}

/* Mobile Menu Toggle */
.bn-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: var(--bn-radius-md);
  color: var(--bn-color-text);
  transition: background var(--bn-transition-fast);
  margin-left: auto;
}

.bn-menu-toggle:hover {
  background: var(--bn-color-bg-alt);
}

.bn-menu-toggle svg {
  width: 24px;
  height: 24px;
}

@media (min-width: 1024px) {
  .bn-menu-toggle {
    display: none;
  }
}

/* Desktop Nav */
.bn-header__nav {
  display: none;
}

@media (min-width: 1024px) {
  .bn-header__nav {
    display: flex;
    align-items: center;
    margin-left: auto;
  }

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

  .bn-nav__list > .menu-item {
    position: relative;
    white-space: nowrap;
  }

  .bn-nav__list > .menu-item > a {
    display: block;
    padding: var(--bn-space-2) var(--bn-space-3);
    font-size: var(--bn-text-sm);
    font-weight: var(--bn-font-weight-medium);
    color: var(--bn-color-neutral-600);
    text-decoration: none;
    border-radius: var(--bn-radius-md);
    transition: all var(--bn-transition-fast);
  }

  .bn-nav__list > .menu-item > a:hover,
  .bn-nav__list > .current-menu-item > a {
    color: var(--bn-color-primary);
    background: var(--bn-color-primary-light);
  }

  /* Hide items beyond the 4th — they go into the "Més" dropdown */
  .bn-nav__list > .menu-item:nth-child(n+5) {
    display: none;
  }

  /* Sub-menus (dropdowns) */
  .bn-nav__list .sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: var(--bn-space-1);
    background: var(--bn-color-surface);
    border: var(--bn-border-width) solid var(--bn-color-border);
    border-radius: var(--bn-radius-lg);
    box-shadow: var(--bn-shadow-lg);
    padding: var(--bn-space-2);
    min-width: 200px;
    z-index: var(--bn-z-dropdown);
    list-style: none;
  }

  .bn-nav__list > .menu-item:hover > .sub-menu {
    display: block;
  }

  .bn-nav__list .sub-menu .menu-item a {
    display: block;
    padding: var(--bn-space-2) var(--bn-space-3);
    font-size: var(--bn-text-sm);
    color: var(--bn-color-neutral-600);
    text-decoration: none;
    border-radius: var(--bn-radius-md);
    transition: all var(--bn-transition-fast);
    white-space: nowrap;
  }

  .bn-nav__list .sub-menu .menu-item a:hover {
    color: var(--bn-color-primary);
    background: var(--bn-color-primary-light);
  }
}

/* "Més" overflow trigger */
.bn-more-toggle {
  display: none;
}

@media (min-width: 1024px) {
  .bn-more-toggle {
    display: flex;
    align-items: center;
    gap: var(--bn-space-1);
    padding: var(--bn-space-2) var(--bn-space-3);
    font-size: var(--bn-text-sm);
    font-weight: var(--bn-font-weight-medium);
    color: var(--bn-color-neutral-600);
    background: none;
    border: none;
    border-radius: var(--bn-radius-md);
    cursor: pointer;
    transition: all var(--bn-transition-fast);
    white-space: nowrap;
    position: relative;
  }

  .bn-more-toggle:hover,
  .bn-more-toggle[aria-expanded="true"] {
    color: var(--bn-color-primary);
    background: var(--bn-color-primary-light);
  }
}

/* Overflow dropdown */
.bn-overflow-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--bn-space-1);
  background: var(--bn-color-surface);
  border: var(--bn-border-width) solid var(--bn-color-border);
  border-radius: var(--bn-radius-lg);
  box-shadow: var(--bn-shadow-lg);
  padding: var(--bn-space-2);
  min-width: 220px;
  z-index: var(--bn-z-dropdown);
  list-style: none;
  margin-block: 0;
}

.bn-overflow-menu[data-open="true"] {
  display: block;
}

.bn-overflow-menu li {
  list-style: none;
}

.bn-overflow-menu li a {
  display: block;
  padding: var(--bn-space-2) var(--bn-space-3);
  font-size: var(--bn-text-sm);
  color: var(--bn-color-neutral-600);
  text-decoration: none;
  border-radius: var(--bn-radius-md);
  transition: all var(--bn-transition-fast);
}

.bn-overflow-menu li a:hover {
  color: var(--bn-color-primary);
  background: var(--bn-color-primary-light);
}

/* Mobile Nav */
.bn-mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: var(--bn-z-overlay);
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity var(--bn-transition-normal);
}

.bn-mobile-nav.is-open {
  display: block;
  opacity: 1;
}

.bn-mobile-nav__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100%;
  background: var(--bn-color-surface);
  padding: var(--bn-space-6);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--bn-transition-normal);
}

.bn-mobile-nav.is-open .bn-mobile-nav__panel {
  transform: translateX(0);
}

.bn-mobile-nav__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: var(--bn-radius-md);
  margin-left: auto;
  margin-bottom: var(--bn-space-6);
  color: var(--bn-color-text);
}

.bn-mobile-nav__close:hover {
  background: var(--bn-color-bg-alt);
}

.bn-mobile-nav .menu {
  display: flex;
  flex-direction: column;
  gap: var(--bn-space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.bn-mobile-nav .menu-item a {
  display: block;
  padding: var(--bn-space-3) var(--bn-space-4);
  font-size: var(--bn-text-base);
  font-weight: var(--bn-font-weight-medium);
  color: var(--bn-color-text);
  border-radius: var(--bn-radius-md);
  transition: all var(--bn-transition-fast);
}

.bn-mobile-nav .menu-item a:hover,
.bn-mobile-nav .current-menu-item a {
  background: var(--bn-color-primary-light);
  color: var(--bn-color-primary);
}

.bn-mobile-nav .sub-menu {
  padding-left: var(--bn-space-4);
  list-style: none;
  margin: 0;
}

/* -- Site Footer ------------------------------------------------------------ */
.bn-footer {
  background: var(--bn-color-green-950);
  color: rgba(255, 255, 255, 0.8);
  margin-top: auto;
}

.bn-footer a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--bn-transition-fast);
}

.bn-footer a:hover {
  color: var(--bn-color-green-300);
}

.bn-footer__main {
  padding-block: var(--bn-space-16);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--bn-space-10);
}

@media (min-width: 640px) {
  .bn-footer__main {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .bn-footer__main {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.bn-footer__brand {
  max-width: 320px;
}

.bn-footer__brand-logo {
  height: 80px;
  width: auto;
  margin-bottom: var(--bn-space-4);
  border-radius: var(--bn-radius-md);
}

.bn-footer__brand p {
  font-size: var(--bn-text-sm);
  line-height: var(--bn-leading-normal);
  color: rgba(255, 255, 255, 0.6);
}

.bn-footer__heading {
  font-family: var(--bn-font-heading);
  font-size: var(--bn-text-base);
  font-weight: var(--bn-font-weight-bold);
  color: var(--bn-color-text-inverse);
  margin-bottom: var(--bn-space-4);
}

.bn-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--bn-space-3);
}

.bn-footer__links a {
  font-size: var(--bn-text-sm);
}

.bn-footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--bn-space-3);
  font-size: var(--bn-text-sm);
  margin-bottom: var(--bn-space-3);
}

.bn-footer__contact-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--bn-color-green-400);
}

.bn-footer__social {
  display: flex;
  gap: var(--bn-space-4);
  justify-content: center;
  padding-block: var(--bn-space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.bn-footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.7);
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.bn-footer__social-link:hover {
  background: var(--bn-color-green-500);
  color: #fff;
  transform: scale(1.1);
}

.bn-footer__bottom {
  padding-block: var(--bn-space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--bn-space-3);
  font-size: var(--bn-text-xs);
  color: rgba(255, 255, 255, 0.4);
}

.bn-footer__legal {
  display: flex;
  gap: var(--bn-space-4);
}

.bn-footer__legal a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
}

.bn-footer__legal a:hover {
  color: #fff;
}

@media (min-width: 640px) {
  .bn-footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}