#siteHeader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.125rem 0;
  transition: all .35s var(--ease);
  border-bottom: 1px solid transparent;
  background: transparent;
}

#siteHeader.scrolled {
  padding: 0.75rem 0;
  background: rgba(10, 10, 12, 0.72);
  backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid var(--border-glass);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  max-width: 12rem;
}

.logo img {
  height: 2rem;
  width: auto;
}

.logo-trsoft img {
  height: 3rem !important; 
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.125rem;
}

.nav-links a {
  position: relative;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 0.375rem 0;
  transition: color .25s ease;
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
  box-shadow: 0 0 10px var(--accent-glow-strong);
}

.nav-links a:hover {
  color: var(--text-white);
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-phone {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-white);
}

.nav-phone .icon {
  width: 1rem;
  height: 1rem;
  color: var(--accent-red);
}

.nav-phone span small {
  display: block;
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.burger {
  display: none;
  width: 2.375rem;
  height: 2.375rem;
  align-items: center;
  justify-content: center;
  border-radius: 0.625rem;
  border: 1px solid var(--border-glass);
  background: var(--bg-surface);
}

.burger svg {
  width: 1.125rem;
  height: 1.125rem;
}

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 1100;
  background: rgba(8, 8, 10, 0.98);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  padding: 1.625rem 1.5rem;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: all .45s var(--ease);
}

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

.mobile-nav-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2.5rem;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.mobile-nav-links a {
  font-family: var(--font-heading);
  font-size: 1.625rem;
  font-weight: 600;
  padding: 0.875rem 0.25rem;
  border-bottom: 1px solid var(--border-glass);
  color: var(--text-white);
}

.mobile-nav-cta {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

@media (max-width: 1080px) {
  .nav-links, .nav-phone, .alpemix-btn {
    display: none !important;
  }
  .burger {
    display: flex;
  }
}