.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1001;
  background-color: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(192, 192, 192, 0.1);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-lg);
  gap: var(--spacing-md);
}

.logo {
  display: flex;
  align-items: center;
  position: relative;
  z-index: 1001;
}

.logo-img {
  width: 100px;
  height: 100px;
  object-fit: contain;
  filter: brightness(1.3) contrast(1.2) drop-shadow(0 0 4px rgba(30, 144, 255, 0.15));
}

.logo-text {
  display: none;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #FFFFFF;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #A0A0A0;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: #1E90FF;
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: #FFFFFF;
}

.nav-link:hover::after {
  width: 100%;
}


.nav-cta {
  padding: 0.75rem 1.5rem;
  font-size: 0.8125rem;
  background-color: rgba(10, 103, 163, 0.6);
  font-weight: 400;
}

.nav-cta:hover {
  background-color: var(--tactical-blue);
}

.mobile-menu-toggle {
  display: none;
}

.mobile-toggle-label {
  display: none;
  width: 40px;
  height: 40px;
  cursor: pointer;
  position: absolute;
  right: var(--spacing-lg);
  z-index: 1001;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #FFFFFF;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: background-color var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background-color: #FFFFFF;
  position: absolute;
  left: 0;
  transition: transform var(--transition-fast);
}

.hamburger::before {
  top: -7px;
}

.hamburger::after {
  top: 7px;
}

.mobile-menu-toggle:checked + .header .header-container .hamburger {
  background-color: transparent;
}

.mobile-menu-toggle:checked + .header .header-container .hamburger::before {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle:checked + .header .header-container .hamburger::after {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 100px;
  left: 0;
  right: 0;
  background-color: #000000;
  z-index: 1000;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-xl);
  visibility: hidden;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity var(--transition-medium) ease-in-out, transform var(--transition-medium) ease-in-out, visibility 0s linear var(--transition-medium);
}

.mobile-menu-toggle:checked + .header .mobile-nav {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--transition-medium) ease-in-out, transform var(--transition-medium) ease-in-out, visibility 0s linear 0s;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: var(--spacing-sm);
  text-align: center;
  width: 100%;
  background-color: #000000;
}

.mobile-nav-item {
  display: block;
  width: 100%;
}

.mobile-nav-link {
  display: block;
  font-size: 1rem;
  font-weight: 400;
  color: #A0A0A0;
  padding: 0.5rem 0;
  border-bottom: none;
  transition: color var(--transition-fast);
}

.mobile-nav-link:hover {
  color: #FFFFFF;
}

.mobile-cta {
  width: auto;
  margin-top: var(--spacing-md);
  background-color: rgba(10, 103, 163, 1);
  padding: 0.75rem 1.5rem;
}

@media (max-width: 1024px) {
  .nav {
    display: none;
  }

  .mobile-toggle-label {
    display: block;
  }

  .mobile-nav {
    display: flex;
  }

  .logo-text {
    display: none;
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .logo-img {
    width: 80px;
    height: 80px;
  }

  .mobile-nav {
    top: 88px;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-lg);
  }

  .mobile-nav-link {
    font-size: 0.9375rem;
    padding: 0.4rem 0;
  }

  .mobile-cta {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
  }
}