.site-nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: 86px;
  z-index: 50;
  background: #051736;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 45px rgba(4, 8, 20, 0.6);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  overflow: hidden;
}

.site-nav::before {
  content: "";
  position: absolute;
  top: -35%;
  bottom: -35%;
  left: -25%;
  width: 40%;
  background: linear-gradient(120deg, rgba(245, 196, 78, 0) 10%, rgb(245, 195, 78) 45%, rgba(245, 196, 78, 0) 90%);
  filter: blur(18px);
  transform: translateX(-130%) rotate(10deg);
  animation: navRay 8s linear infinite;
  pointer-events: none;
}

.site-nav::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 60%;
  height: 2px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, rgba(191, 219, 254, 0.9), transparent);
  filter: blur(0.5px);
  animation: navGlow 6s ease-in-out infinite;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  position: relative;
  z-index: 1;
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  font-weight: 700;
  color: #fff;
}

.brand-logo {
  width: 96px;
  height: 96px;
  display: block;
  object-fit: contain;
  background: transparent;
  padding: 0;
  box-shadow: none;
}

.logo {
  width: 36px;
  height: 36px;
  border-radius: 14px;
  background: linear-gradient(90deg, var(--blue1), var(--blue2));
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  color: #fff;
}

.brand-name {
  font-size: 18px;
}

.brand-tag {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
}

.nav-links {
  display: flex;
  gap: 6px;
  align-items: center;
}

.nav-links a {
  padding: 10px 14px;
  border-radius: 12px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.82);
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
  position: relative;
  isolation: isolate;
  text-align: center;
}

.nav-links a:hover {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  transform: translateY(-1px);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 18%;
  right: 18%;
  bottom: 6px;
  height: 2px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.2s ease;
  z-index: -1;
}

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

.nav-links a.active {
  background: rgba(255, 255, 255, 0.32);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.15) inset;
}

.nav-links a.active::after {
  transform: scaleX(1);
  background: #bfdbfe;
}

.nav-cta {
  background: linear-gradient(120deg, #1d4ed8, #60a5fa, #2563eb);
  color: #fff;
  padding: 10px 16px;
  border-radius: 16px;
  font-weight: 700;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
  border: 1px solid #60a5fa;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  background-size: 200%;
  animation: navCta 8s linear infinite;
}

.nav-cta:hover {
  background: #2563eb;
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.45);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  border: none;
  background: transparent;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: #fff;
  border-radius: 999px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle.open .line1 {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle.open .line2 {
  opacity: 0;
}

.nav-toggle.open .line3 {
  transform: translateY(-6px) rotate(-45deg);
}

.gradient-bar,
.gradbar {
  height: 4px;
  background: linear-gradient(90deg, #1e40af, #2563eb, #60a5fa);
}

.nav-backdrop {
  display: none;
}

@media (max-width: 900px) {
  .site-nav {
    overflow: visible;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 86px;
    right: 0;
    width: min(320px, 82%);
    height: calc(100vh - 86px);
    background: rgba(8, 20, 47, 0.98);
    border-left: 1px solid rgba(255, 255, 255, 0.08);
    padding: 32px 22px;
    flex-direction: column;
    gap: 0;
    transform: translateX(100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
    z-index: 999;
    box-shadow: -20px 0 40px rgba(2, 6, 23, 0.45);
    backdrop-filter: blur(8px);
  }

  .nav-links.open {
    transform: translateX(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-cta {
    width: 100%;
    text-align: center;
    margin-top: 18px;
  }

  .nav-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(5, 13, 40, 0.55);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 998;
  }

  .nav-backdrop.visible {
    opacity: 1;
    pointer-events: all;
  }

  .nav-links a {
    width: 100%;
    padding: 16px 0;
    border-radius: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin: 0;
    text-align: center;
    font-size: 18px;
  }

  .nav-links a::after {
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    border-radius: 0;
    background: rgba(255, 255, 255, 0.35);
  }

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

  .nav-links .nav-cta {
    width: 100%;
    text-align: center;
    margin-top: 36px;
    border-radius: 999px;
    padding: 16px;
    border: none;
    border-bottom: none;
    background: linear-gradient(120deg, #2563eb, #60a5fa);
    box-shadow: 0 18px 35px rgba(37, 99, 235, 0.45);
    position: relative;
    font-size: 17px;
  }

  .nav-links .nav-cta::after {
    content: "";
    position: absolute;
    inset: -8px;
    border-radius: 999px;
    border: 1px solid rgba(96, 165, 250, 0.35);
    opacity: 0.8;
  }

  .nav-links .nav-cta::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(120deg, rgba(255, 255, 255, 0.35), transparent);
    opacity: 0.25;
    pointer-events: none;
  }
}

@media (max-width: 600px) {
  .site-nav {
    height: 74px;
  }

  .brand {
    gap: 6px;
  }

  .brand-logo {
    width: 64px;
    height: 64px;
  }

  .brand-name {
    font-size: 16px;
  }

  .brand-tag {
    display: none;
  }

  .nav-links {
    top: 74px;
    height: calc(100vh - 74px);
  }
}

@keyframes navRay {
  0% {
    transform: translateX(-130%) rotate(12deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateX(220%) rotate(12deg);
    opacity: 0;
  }
}

@keyframes navGlow {
  0%,
  100% {
    opacity: 0.3;
    width: 55%;
  }
  50% {
    opacity: 0.85;
    width: 70%;
  }
}

@keyframes navCta {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 200% 50%;
  }
}