/* ============================================
   Aloha Beach Festival - Frosted Glass Header
   Centered logo with split tropical navigation
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

/* Animated gradient bottom border */
.site-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-ocean-teal), var(--color-sky-orange), var(--color-sunset-gold));
}


/* --- Header Layout --- */
.header-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  position: relative;
}

/* --- Center Logo in Circle --- */
.header-logo {
  position: relative;
  z-index: 110;
  flex-shrink: 0;
  margin: 0;
  text-decoration: none;
}

.header-logo-circle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background-color: var(--color-white);
  box-shadow: 0 4px 20px rgba(255, 183, 3, 0.2);
  border: 3px solid var(--color-sunset-gold);
  margin-top: 8px;
  margin-bottom: -20px;
  transition: transform var(--transition-bounce), box-shadow var(--transition-base), border-color var(--transition-base);
  will-change: transform;
  overflow: hidden;
  padding: 8px;
}

@keyframes logoSpin {
  from { transform: scale(1.05) rotate(0deg); }
  to { transform: scale(1.05) rotate(360deg); }
}

.header-logo:hover .header-logo-circle {
  animation: logoSpin 1s ease-in-out;
  box-shadow: 0 6px 30px rgba(255, 183, 3, 0.35), 0 0 15px rgba(255, 107, 53, 0.2);
  border-color: var(--color-sunset-orange);
}

.header-logo-circle img {
  width: 88px;
  height: auto;
  display: block;
}

/* --- Split Navigation (left + right of logo) --- */
.nav-left,
.nav-right {
  display: none;
}

.nav-left ul,
.nav-right ul {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-left a,
.nav-right a {
  display: block;
  padding: 0.6rem 1rem;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-deep-teal);
  text-transform: uppercase;
  letter-spacing: 0.75px;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
  position: relative;
}

/* Tropical gradient underline on hover */
.nav-left a::after,
.nav-right a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-sunset-orange), var(--color-sunset-gold));
  border-radius: 1px;
  transition: all var(--transition-base);
  transform: translateX(-50%);
}

.nav-left a:hover,
.nav-right a:hover {
  color: var(--color-ocean-teal);
  background-color: rgba(0, 109, 119, 0.06);
}

.nav-left a:hover::after,
.nav-right a:hover::after {
  width: 60%;
}

/* Active link - tropical gradient pill */
.nav-left a.active,
.nav-right a.active {
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-ocean-teal), var(--color-ocean-medium));
  box-shadow: 0 2px 10px rgba(0, 153, 204, 0.25);
}

.nav-left a.active::after,
.nav-right a.active::after {
  display: none;
}

/* Old single-nav hidden */
.main-nav {
  display: none;
}

/* --- Mobile Hamburger Button --- */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  z-index: 110;
  position: absolute;
  right: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.nav-toggle:hover {
  border-color: var(--color-sunset-gold);
  background-color: rgba(255, 183, 3, 0.08);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2.5px;
  background-color: var(--color-deep-teal);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* --- Mobile Header --- */
@media (max-width: 1023px) {
  .header-inner {
    justify-content: center;
    padding: var(--space-sm) var(--space-md);
    min-height: 80px;
  }

  .header-logo-circle {
    width: 72px;
    height: 72px;
    margin-top: 4px;
    margin-bottom: -12px;
    padding: 6px;
  }

  .header-logo-circle img {
    width: 56px;
  }
}

/* --- Mobile Navigation Panel --- */
.mobile-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-white);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  padding: var(--space-sm) var(--space-md) var(--space-md);
  z-index: 99;
  border-top: none;
}

.mobile-nav.is-open {
  display: block;
  animation: fadeInUp 0.3s ease-out;
}

.mobile-nav ul {
  display: flex;
  flex-direction: column;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-nav a {
  display: block;
  padding: 0.75rem var(--space-md);
  font-family: var(--font-heading);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  color: var(--color-deep-teal);
  text-transform: uppercase;
  letter-spacing: 0.75px;
  border-radius: var(--radius-lg);
  transition: background-color var(--transition-fast), color var(--transition-fast);
  text-decoration: none;
}

.mobile-nav a:hover {
  background-color: rgba(0, 109, 119, 0.06);
  color: var(--color-ocean-teal);
}

.mobile-nav a.active {
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-ocean-teal), var(--color-ocean-medium));
}

/* --- Desktop: Show split nav, hide hamburger --- */
@media (min-width: 1024px) {
  .nav-toggle {
    display: none;
  }

  .mobile-nav {
    display: none !important;
  }

  .header-inner {
    justify-content: center;
    min-height: auto;
  }

  .nav-left,
  .nav-right {
    display: block;
    flex: 1;
  }

  .nav-left ul {
    justify-content: flex-end;
  }

  .nav-right ul {
    justify-content: flex-start;
  }

  .header-logo {
    margin: 0 var(--space-md);
  }

  .header-logo-circle {
    width: 120px;
    height: 120px;
    margin-top: 10px;
    margin-bottom: -28px;
    padding: 10px;
  }

  .header-logo-circle img {
    width: 94px;
  }
}

/* Large desktop - bigger logo, more breathing room */
@media (min-width: 1280px) {
  .nav-left a,
  .nav-right a {
    padding: 0.6rem 1.15rem;
    font-size: 0.85rem;
  }

  .header-logo {
    margin: 0 var(--space-xl);
  }

  .header-logo-circle {
    width: 140px;
    height: 140px;
    margin-bottom: -32px;
    padding: 12px;
  }

  .header-logo-circle img {
    width: 108px;
  }
}