/* FOX — navigazione globale condivisa dai mockup approvati. */
:root {
  --fox-header-height: 76px;
  --fox-header-mobile-height: 98px;
  --fox-nav-black: #0d0d0b;
  --fox-nav-white: #fff;
  --fox-nav-sage: #9c9b88;
  --fox-nav-sand: #dcd3b2;
  --fox-nav-green: #435741;
  --fox-nav-font: 'EB Garamond', Georgia, serif;
  --fox-nav-display: 'Playfair Display', Georgia, serif;
}

.site-header,
.site-header * { box-sizing: border-box; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: var(--fox-header-height);
  padding: 0 clamp(24px, 4vw, 64px);
  color: var(--fox-nav-white);
  background: rgba(13, 13, 11, 0.98);
  border-bottom: 1px solid rgba(220, 211, 178, 0.18);
  font-family: var(--fox-nav-font);
}

.site-header .brand {
  width: max-content;
  color: var(--fox-nav-white);
  line-height: 1;
  text-decoration: none;
}

.site-header .brand span {
  display: block;
  font-family: var(--fox-nav-display);
  font-size: 23px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.site-header .brand small {
  display: block;
  margin-top: 5px;
  color: var(--fox-nav-sage);
  font-size: 8px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}

.site-header .main-nav {
  display: flex;
  align-self: stretch;
  align-items: center;
  gap: clamp(22px, 2.3vw, 36px);
  overflow: visible;
}

.site-header .main-nav > a,
.site-header .main-nav-events-label > a,
.site-header .header-cta,
.site-header .events-menu-toggle {
  font-family: var(--fox-nav-font);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-header .main-nav > a,
.site-header .main-nav-events-label > a {
  color: var(--fox-nav-sage);
  text-decoration: none;
  transition: color 180ms ease;
}

.site-header .main-nav > a:hover,
.site-header .main-nav-events-label > a:hover,
.site-header .main-nav > a[aria-current='page'],
.site-header .main-nav-events-label > a[aria-current='page'] { color: var(--fox-nav-white); }

.site-header .main-nav-dropdown {
  position: relative;
  display: flex;
  align-self: stretch;
  align-items: center;
}

.site-header .main-nav-events-label {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-header .events-menu-toggle {
  display: grid;
  width: 20px;
  height: 28px;
  padding: 0;
  place-items: center;
  border: 0;
  color: var(--fox-nav-sand);
  background: transparent;
  cursor: pointer;
}

.site-header .events-menu-toggle > span[aria-hidden='true'] {
  display: block;
  font-size: 16px;
  line-height: 1;
  transition: transform 180ms ease;
}

.site-header .main-nav-dropdown.is-open .events-menu-toggle > span[aria-hidden='true'] { transform: rotate(180deg); }

.site-header .events-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  width: 270px;
  padding: 8px;
  border: 1px solid rgba(220, 211, 178, 0.22);
  color: var(--fox-nav-white);
  background: rgba(13, 13, 11, 0.99);
  box-shadow: 0 20px 42px rgba(0, 0, 0, 0.3);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate(-50%, -8px);
  transition: opacity 160ms ease, transform 160ms ease, visibility 160ms ease;
}

.site-header .events-dropdown a {
  display: flex;
  min-height: 42px;
  padding: 10px 12px;
  align-items: center;
  border-bottom: 1px solid rgba(220, 211, 178, 0.13);
  color: var(--fox-nav-sage);
  font-family: var(--fox-nav-font);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.25;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 160ms ease, background 160ms ease;
}

.site-header .events-dropdown a:last-child { border-bottom: 0; }
.site-header .carta-dropdown { width: 200px; }
.site-header .events-dropdown a:hover,
.site-header .events-dropdown a[aria-current='page'] {
  color: var(--fox-nav-white);
  background: var(--fox-nav-green);
}

.site-header .main-nav-dropdown.is-open .events-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

@media (hover: hover) and (min-width: 761px) {
  .site-header .main-nav-dropdown:hover .events-menu-toggle > span[aria-hidden='true'] { transform: rotate(180deg); }
  .site-header .main-nav-dropdown:hover .events-dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translate(-50%, 0);
  }
}

.site-header .header-cta {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--fox-nav-white);
  text-decoration: none;
}

.site-header .header-cta span {
  color: var(--fox-nav-sand);
  font-size: 16px;
}

.site-header .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.carta-site .chapter-nav { top: var(--fox-header-height); }
.carta-site.index-page .index-cover { min-height: calc(100vh - var(--fox-header-height)); }

@media (max-width: 760px) {
  .site-header {
    grid-template-columns: 1fr auto;
    min-height: var(--fox-header-mobile-height);
    padding: 12px 20px 0;
    row-gap: 10px;
  }

  .site-header .main-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    width: calc(100% + 40px);
    height: 44px;
    margin-left: -20px;
    padding: 0 20px;
    justify-content: center;
    gap: clamp(11px, 4vw, 22px);
    overflow: visible;
    border-top: 1px solid rgba(220, 211, 178, 0.18);
  }

  .site-header .main-nav > a,
  .site-header .main-nav-events-label > a,
  .site-header .events-menu-toggle { font-size: 10px; }

  .site-header .main-nav-events-label { gap: 2px; }
  .site-header .events-menu-toggle { width: 14px; }

  .site-header .header-cta {
    grid-column: 2;
    grid-row: 1;
    font-size: 10px;
  }

  .site-header .events-dropdown {
    position: fixed;
    top: var(--fox-header-mobile-height);
    right: 12px;
    left: 12px;
    width: auto;
    transform: translateY(-8px);
  }

  .site-header .main-nav-dropdown.is-open .events-dropdown { transform: translateY(0); }

  .carta-site .chapter-nav { top: var(--fox-header-mobile-height); }
  .carta-site.index-page .index-cover { min-height: calc(100vh - var(--fox-header-mobile-height)); }
}

@media (max-width: 390px) {
  .site-header .main-nav { gap: 10px; padding-inline: 12px; }
  .site-header .main-nav > a,
  .site-header .main-nav-events-label > a,
  .site-header .events-menu-toggle { font-size: 9px; letter-spacing: 0.06em; }
}

@media print {
  .site-header { display: none; }
  .carta-site .chapter-nav { top: 0; }
}