/* ============================================================
   LAYOUT — Header, navigation, footer, skip link
   Mobile-first: hamburger by default, horizontal nav at 768px+
   ============================================================ */

/* --- Skip to main content (accessibility) --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-3) var(--space-6);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-weight: var(--font-weight-semibold);
  z-index: calc(var(--z-nav) + 10);
  transition: top var(--transition-fast);
}
.skip-link:focus {
  top: 0;
  color: #fff;
  text-decoration: none;
}

/* ============================================================
   SITE HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background-color: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header-inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--section-padding-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

/* --- Logo --- */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

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

.logo-mark {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: var(--font-weight-black);
  font-size: 1.1rem;
  letter-spacing: -0.05em;
  flex-shrink: 0;
}

.logo-text {
  line-height: var(--line-height-tight);
}

.logo-name {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.logo-tagline {
  display: block;
  font-size: 0.65rem;
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

/* --- Mobile nav controls --- */
.nav-controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.btn-book-nav {
  /* Hidden on very small screens, shown at 400px+ */
  display: none;
}

@media (min-width: 400px) {
  .btn-book-nav {
    display: inline-flex;
  }
}

/* Hamburger button */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-md);
  padding: var(--space-2);
  -webkit-tap-highlight-color: transparent;
  transition: background-color var(--transition-fast);
}

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

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-normal),
              opacity var(--transition-normal),
              width var(--transition-normal);
  transform-origin: center;
}

/* Animate to X when open */
.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;
  width: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- PRIMARY NAVIGATION --- */
/* Mobile: slide-down drawer, hidden by default */
.site-nav {
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background-color: var(--color-bg);
  border-bottom: 2px solid var(--color-primary);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-slow) ease;
  z-index: var(--z-nav);
}

.site-nav.is-open {
  max-height: 600px;
}

.nav-list {
  list-style: none;
  padding: var(--space-3) 0 var(--space-4);
  margin: 0;
}

.nav-item { margin: 0; }

/* Has dropdown */
.nav-item.has-dropdown { position: relative; }

.nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3) var(--section-padding-x);
  min-height: 48px;
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link.is-active {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  text-decoration: none;
}

.nav-link.is-active { font-weight: var(--font-weight-semibold); }

/* Dropdown arrow */
.nav-arrow {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-normal);
}

.nav-item.has-dropdown .nav-link[aria-expanded="true"] .nav-arrow {
  transform: rotate(180deg);
}

/* Dropdown sub-menu */
.nav-dropdown {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-normal) ease;
  background-color: var(--color-bg-alt);
}

.nav-dropdown.is-open { max-height: 300px; }

.nav-dropdown-list {
  list-style: none;
  padding: var(--space-2) 0;
  margin: 0;
}

.nav-dropdown-link {
  display: block;
  padding: var(--space-3) calc(var(--section-padding-x) + var(--space-6));
  min-height: 44px;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-dropdown-link:hover,
.nav-dropdown-link:focus-visible {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  text-decoration: none;
}

/* Overlay when mobile nav is open */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  top: var(--header-height);
  background: rgba(0,0,0,0.3);
  z-index: calc(var(--z-nav) - 1);
}

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

/* ============================================================
   DESKTOP NAVIGATION (768px+)
   ============================================================ */
@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .nav-overlay { display: none !important; }

  .site-nav {
    position: static;
    max-height: none;
    overflow: visible;
    border-bottom: none;
    box-shadow: none;
    background: transparent;
    flex: 1;
  }

  .nav-list {
    display: flex;
    align-items: center;
    padding: 0;
    gap: var(--space-1);
  }

  .nav-item { margin: 0; }

  .nav-link {
    padding: var(--space-2) var(--space-3);
    min-height: var(--header-height);
    border-radius: 0;
    font-size: var(--text-sm);
    white-space: nowrap;
  }

  /* Desktop dropdown */
  .nav-item.has-dropdown {
    position: relative;
  }

  .nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-top: 2px solid var(--color-primary);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal) ease,
                opacity var(--transition-normal) ease;
    opacity: 0;
    z-index: var(--z-nav);
  }

  .nav-dropdown.is-open {
    max-height: 400px;
    opacity: 1;
  }

  .nav-dropdown-link {
    padding: var(--space-3) var(--space-5);
  }

  .btn-book-nav { display: inline-flex; }
}

/* ============================================================
   MOBILE STICKY "BOOK NOW" BOTTOM BAR
   ============================================================ */
.sticky-cta-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--bottom-bar-height);
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-above);
  box-shadow: 0 -2px 12px rgba(0,0,0,0.15);
}

.sticky-cta-bar a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  color: #fff;
  font-weight: var(--font-weight-bold);
  font-size: var(--text-base);
  text-decoration: none;
  width: 100%;
  height: 100%;
  padding: 0 var(--space-6);
}

.sticky-cta-bar a:hover { text-decoration: none; color: #fff; }

/* Hide on desktop — nav handles it */
@media (min-width: 768px) {
  .sticky-cta-bar { display: none; }
}

/* ============================================================
   SITE FOOTER
   ============================================================ */
.site-footer {
  background-color: var(--color-bg-dark);
  color: rgba(255,255,255,0.8);
  padding: clamp(3rem, 7vw, 5rem) var(--section-padding-x) var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  max-width: var(--container-max);
  margin: 0 auto;
}

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

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

.footer-brand { }

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  text-decoration: none;
}

.footer-logo:hover { text-decoration: none; }

.footer-logo .logo-mark {
  background: rgba(255,255,255,0.1);
}

.footer-logo .logo-name {
  color: #fff;
}

.footer-tagline {
  font-size: var(--text-sm);
  line-height: var(--line-height-loose);
  margin-bottom: var(--space-5);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.7);
  transition: background-color var(--transition-fast), color var(--transition-fast);
  text-decoration: none;
}

.social-link:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  text-decoration: none;
}

.social-link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.footer-col h4 {
  color: #fff;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li { margin-bottom: var(--space-3); }

.footer-links a {
  color: rgba(255,255,255,0.65);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover { color: #fff; text-decoration: none; }

.footer-bottom {
  margin-top: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  text-align: center;
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.4);
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-bottom a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
}
.footer-bottom a:hover { color: #fff; }