/* Modern Navigation */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background 320ms var(--jolt-ease), border-color 320ms var(--jolt-ease), backdrop-filter 320ms var(--jolt-ease);
  pointer-events: none;
}

.site-header.is-scrolled {
  background: rgba(5, 8, 22, 0.7);
  backdrop-filter: blur(18px) saturate(130%);
  -webkit-backdrop-filter: blur(18px) saturate(130%);
  border-bottom: 1px solid var(--jolt-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  pointer-events: auto;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.site-logo__mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--jolt-border);
  box-shadow: 0 30px 60px -40px rgba(79, 155, 255, 0.9);
}

.site-nav {
  display: none;
  gap: 2rem;
  align-items: center;
  font-size: 0.95rem;
  color: var(--jolt-text-secondary);
}

@media (min-width: 1080px) {
  .site-nav {
    display: flex;
  }
}

.site-nav__link {
  position: relative;
  padding: 0.4rem 0;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--jolt-accent), transparent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 220ms var(--jolt-ease-out);
  opacity: 0.8;
}

.site-nav__link:hover::after,
.site-nav__link.is-active::after {
  transform: scaleX(1);
}

.site-header__actions {
  display: flex;
  gap: 0.9rem;
  align-items: center;
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  gap: 6px;
  width: 48px;
  height: 48px;
  border-radius: 999px;
  border: 1px solid var(--jolt-border);
  align-items: center;
  justify-content: center;
  background: transparent;
  cursor: pointer;
}

@media (min-width: 1080px) {
  .nav-toggle {
    display: none;
  }
}

.nav-toggle__bar {
  width: 18px;
  height: 1px;
  background: var(--jolt-text-primary);
  transition: transform 220ms var(--jolt-ease-out);
}

.nav-toggle.is-open .nav-toggle__bar:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle.is-open .nav-toggle__bar:last-child {
  transform: translateY(-3px) rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding: calc(var(--nav-height) + 1rem) var(--container-padding) 2rem;
  background: radial-gradient(1200px 800px at 50% 0%, rgba(79, 155, 255, 0.22), transparent 70%), rgba(5, 8, 22, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform 320ms var(--jolt-ease-out), opacity 320ms var(--jolt-ease-out), visibility 320ms var(--jolt-ease-out);
  gap: 2rem;
  z-index: 900;
}

.mobile-menu.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-menu__links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: clamp(1.8rem, 8vw, 3.2rem);
  letter-spacing: -0.03em;
}

.mobile-menu__footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  color: var(--jolt-text-secondary);
}