/* ===================================
   Site Header — Sticky + Hamburger
   =================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(250, 248, 243, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(214, 203, 174, 0.3);
  transition: box-shadow var(--transition-base), background-color var(--transition-base);
}

.site-header.scrolled {
  background-color: rgba(250, 248, 243, 0.97);
  box-shadow: 0 1px 20px rgba(22, 35, 64, 0.06);
}

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

/* Logo */
.site-logo {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-navy);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.site-logo:hover {
  color: var(--color-navy);
}

/* Desktop nav */
.site-nav__list {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.site-nav__link {
  font-size: var(--text-xs);
  font-family: var(--font-ui);
  font-weight: 600;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-charcoal);
  padding: var(--space-xs) 0;
  position: relative;
}

.site-nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-gold);
  transition: width var(--transition-base);
}

.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after {
  width: 100%;
}

.site-nav__link:hover {
  color: var(--color-navy);
}

.site-nav__link[aria-current="page"] {
  color: var(--color-navy);
}

/* Book Now in nav */
.site-nav__book {
  margin-left: var(--space-xs);
}

/* Hamburger button */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 110;
}

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

/* Hamburger -> X animation */
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---- Mobile nav ---- */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: min(320px, 85vw);
    height: 100vh;
    background-color: var(--color-warm-white);
    padding: calc(var(--header-height) + var(--space-lg)) var(--gutter) var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-lg);
    z-index: 105;
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .site-nav__link {
    font-size: var(--text-lg);
    font-family: var(--font-body);
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0;
    padding: var(--space-xs) 0;
  }

  .site-nav__book {
    margin-left: 0;
    margin-top: var(--space-sm);
  }

  /* Overlay behind mobile nav */
  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 100;
  }

  .nav-overlay.is-visible {
    display: block;
  }
}

@media (min-width: 769px) {
  .nav-overlay {
    display: none !important;
  }
}