.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: radial-gradient(circle at 0 0, rgba(46, 139, 255, 0.16), transparent 55%),
    linear-gradient(145deg, rgba(5, 7, 11, 0.96), rgba(13, 17, 23, 0.96));
  border-bottom: 1px solid var(--color-border-subtle);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
  gap: var(--space-8);
}

.site-header__brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--gray-50);
}

.site-header__logo-mark {
  position: relative;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 20%, #2e8bff, #151922);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.06), var(--shadow-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.site-header__logo-orbit {
  position: absolute;
  inset: 5px;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-top-color: rgba(46, 139, 255, 0.9);
  border-bottom-color: transparent;
}

.site-header__logo-core {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #f5f7fb;
  box-shadow: 0 0 12px rgba(46, 139, 255, 0.85);
}

.site-header__logo-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.site-header__logo-name {
  font-family: "Rajdhani", var(--font-sans);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: var(--font-size-sm);
}

.site-header__logo-tagline {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.site-header__nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-8);
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header__nav-link {
  font-size: var(--font-size-sm);
  color: var(--gray-200);
  text-decoration: none;
  position: relative;
  padding-block: 4px;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, transparent, #2e8bff, transparent);
  transform-origin: center;
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.site-header__nav-link:focus-visible::after,
.site-header__nav-link:hover::after {
  transform: scaleX(1);
}

.site-header__nav-link:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: var(--radius-full);
}

.site-header__cta-wrap {
  display: flex;
  align-items: center;
}

.site-header__cta {
  padding-inline: var(--space-6);
  font-size: var(--font-size-xs);
}

.site-header__menu-toggle {
  display: none;
  align-items: center;
  gap: var(--space-3);
  padding: 6px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border-subtle);
  background: rgba(5, 7, 11, 0.9);
  color: var(--gray-100);
  cursor: pointer;
}

.site-header__menu-toggle:focus-visible {
  box-shadow: var(--shadow-focus);
}

.site-header__menu-toggle-box {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}

.site-header__menu-toggle-line {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--gray-200);
  transition: transform var(--transition-normal), opacity var(--transition-normal),
    background var(--transition-normal);
}

.site-header__menu-toggle-text {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.site-header__menu-toggle[aria-expanded="true"] .site-header__menu-toggle-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.site-header__menu-toggle[aria-expanded="true"] .site-header__menu-toggle-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 960px) {
  .site-header__inner {
    gap: var(--space-4);
  }

  .site-header__menu-toggle {
    display: inline-flex;
  }

  .site-header__nav {
    position: fixed;
    inset: 56px 0 auto 0;
    max-height: calc(100vh - 56px);
    padding: var(--space-6) var(--container-padding-x) var(--space-8);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    background: linear-gradient(145deg, rgba(5, 7, 11, 0.98), rgba(13, 17, 23, 0.98));
    border-bottom: 1px solid var(--color-border-subtle);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: var(--space-4);
  }

  .site-header__nav-link {
    font-size: var(--font-size-md);
  }

  .site-header__cta-wrap {
    width: 100%;
    margin-top: var(--space-6);
  }

  .site-header__cta {
    width: 100%;
    justify-content: center;
  }

  .site-header__nav--open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 600px) {
  .site-header__logo-tagline {
    display: none;
  }
}