.site-header {
  position: fixed;
  z-index: 50;
  top: 0;
  right: 0;
  left: 0;
  color: #fff;
}

.topbar {
  border-bottom: 1px solid #26345f;
  background: var(--navy);
  font-size: 0.76rem;
}

.topbar-inner {
  display: flex;
  min-height: 34px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.navbar {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 10px;
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 11px 14px;
  background: #fff;
  color: var(--navy);
  box-shadow: 0 18px 44px rgba(18, 31, 63, 0.1);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  position: relative;
  display: grid;
  width: 44px;
  height: 38px;
  place-items: center;
  border-radius: 0;
  background: var(--red);
  clip-path: polygon(0 50%, 100% 0, 100% 100%);
}

.brand-mark::after {
  position: absolute;
  right: -6px;
  z-index: -1;
  width: 36px;
  height: 36px;
  border-radius: 0;
  background: var(--ink);
  content: "";
}

.brand-mark span::before {
  color: #fff;
  font-size: 1.45rem;
  font-weight: 900;
  content: "✈";
}

.brand-logo-image {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.brand-text {
  display: grid;
  line-height: 1.05;
}

.brand-text strong {
  color: var(--red);
  font-family: Georgia, serif;
  font-size: 1.35rem;
  font-weight: 500;
}

.brand-text small {
  color: var(--ink);
  font-weight: 500;
  font-size: 0.78rem;
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  font-weight: 500;
}

.nav-panel a {
  position: relative;
}

.nav-panel a:not(.btn)::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--red);
  content: "";
  transition: transform 0.2s ease;
}

.nav-panel a.active::after,
.nav-panel a:hover::after {
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 0;
  background: var(--ink);
  padding: 10px;
}

.menu-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: #fff;
}

.menu-overlay {
  display: none;
}

@media (max-width: 1160px) {
  .topbar-inner span:nth-child(2) {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .nav-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 60;
    display: grid;
    width: min(360px, 86vw);
    height: 100vh;
    height: 100dvh;
    max-height: 100dvh;
    align-content: start;
    gap: 0;
    padding: 110px 28px max(32px, env(safe-area-inset-bottom));
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    transform: translateX(105%);
    background: #fff;
    box-shadow: var(--shadow);
    transition: transform 0.25s ease;
  }

  .nav-panel a {
    border-bottom: 1px solid var(--line);
    padding: 16px 0;
  }

  .nav-panel .nav-cta {
    margin-top: 20px;
    padding: 13px 18px;
  }

  .menu-open .nav-panel {
    transform: translateX(0);
  }

  .menu-overlay {
    position: fixed;
    inset: 0;
    z-index: 55;
    display: block;
    pointer-events: none;
    background: transparent;
    transition: background 0.25s ease;
  }

  .menu-open .menu-overlay {
    pointer-events: auto;
    background: #121f3f;
    opacity: 0.48;
  }
}

@media (max-width: 560px) {
  .topbar {
    display: none;
  }

  .navbar {
    min-height: 66px;
    margin-top: 10px;
    padding: 9px 10px;
  }

  .brand-mark {
    width: 42px;
    height: 36px;
  }

  .brand-text strong {
    font-size: 1.25rem;
  }

  .nav-panel {
    width: min(330px, 88vw);
    padding: 86px 22px max(34px, env(safe-area-inset-bottom));
  }

  .nav-panel a {
    padding: 13px 0;
  }
}