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

.site-header__inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 16px 24px;
}

.site-header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 48px;
}

.nav-header {
  --site-header-accent: #63f3ff;
  --site-header-accent-soft: rgba(99, 243, 255, 0.08);
  --site-header-accent-line: rgba(99, 243, 255, 0.16);
  --site-header-active-shadow: inset 0 0 0 1px rgba(99, 243, 255, 0.16);
  --site-header-active-text: #f3f7ff;
  background: rgba(4, 6, 8, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(18px);
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.2);
}

.site-header .site-brand {
  display: inline-flex;
  align-items: center;
  font-size: 20px;
  font-weight: 700;
  line-height: 20px;
  text-decoration: none;
  font-family: "IBM Plex Mono", monospace;
  letter-spacing: 0.14em;
  color: #f3f7ff;
  text-shadow: 0 0 16px rgba(99, 243, 255, 0.14);
}

.site-header__desktop {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.site-header .nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  color: #94a3b8;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 8px;
  transition: color 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  font-weight: 600;
  line-height: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-header .nav-link:hover {
  color: #f3f7ff;
  background: rgba(255, 255, 255, 0.04);
}

.site-header .nav-link.active {
  color: var(--site-header-active-text);
  background: var(--site-header-accent-soft);
  box-shadow: var(--site-header-active-shadow);
}

.site-header .site-header__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: #f3f7ff;
  cursor: pointer;
  font-size: 32px;
  transition: border-color 0.22s ease, background 0.22s ease;
}

.site-header .site-header__toggle:hover {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
}

.site-header .site-header__mobile-shell {
  margin-top: 1rem;
  padding-bottom: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.site-header .site-header__mobile-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 1rem;
}

.site-header .mobile-menu {
  display: none;
}

.site-header .mobile-menu.active {
  display: block;
}

@media (max-width: 768px) {
  .desktop-nav {
    display: none;
  }

  .mobile-nav {
    display: inline-flex;
  }
}

@media (min-width: 769px) {
  .desktop-nav {
    display: flex;
  }

  .mobile-nav {
    display: none;
  }
}

.site-header--dispatch {
  --site-header-accent: #00ff55;
  --site-header-accent-soft: rgba(0, 255, 85, 0.12);
  --site-header-accent-line: rgba(0, 255, 85, 0.18);
  --site-header-active-shadow:
    0 0 18px rgba(0, 255, 85, 0.12),
    inset 0 0 0 1px rgba(0, 255, 85, 0.2);
}

.site-header--colormerge {
  --site-header-accent: #f093fb;
  --site-header-accent-soft: rgba(240, 147, 251, 0.14);
  --site-header-accent-line: rgba(240, 147, 251, 0.2);
  --site-header-active-shadow:
    0 0 18px rgba(240, 147, 251, 0.14),
    inset 0 0 0 1px rgba(240, 147, 251, 0.24);
  background: rgba(118, 75, 162, 0.34);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 10px 36px rgba(46, 38, 77, 0.22);
}

.site-header--colormerge .site-brand {
  text-shadow: 0 0 16px rgba(240, 147, 251, 0.28);
}

.site-header--colormerge .nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
}

.site-header--hackersim {
  --site-header-accent: #00e5ff;
  --site-header-accent-soft: rgba(0, 229, 255, 0.12);
  --site-header-accent-line: rgba(0, 229, 255, 0.18);
  --site-header-active-shadow:
    0 0 18px rgba(0, 229, 255, 0.14),
    inset 0 0 0 1px rgba(255, 0, 229, 0.24);
}

.site-footer {
  position: relative;
  z-index: 10;
  padding: 3rem 1.5rem;
  text-align: center;
  font-size: 0.75rem;
}

.site-footer--compact {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

.site-footer--code {
  font-family: "IBM Plex Mono", monospace;
}

.site-footer--muted {
  opacity: 0.7;
}

.site-footer__line {
  margin: 0;
}

.site-footer__line + .site-footer__line {
  margin-top: 0.5rem;
}