.site-header {
  position: sticky;
  top: 0;
  z-index: 9999;
}

.navbar {
  position: relative;
  background:
          radial-gradient(circle at 0% 0%, rgba(199, 255, 61, 0.14), transparent 34%),
          radial-gradient(circle at 100% 0%, rgba(122, 229, 255, 0.08), transparent 34%),
          rgba(4, 7, 8, 0.92);
  border-bottom: 1px solid rgba(199, 255, 61, 0.12);
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.38);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.navbar-inner {
  position: relative;
  min-height: var(--nav-height, 88px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(0.8rem, 2vw, 1.4rem);
}

.navbar-brand {
  position: relative;
  z-index: 10004;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  max-width: min(310px, 42vw);
  padding: 0.45rem 0.9rem 0.45rem 0.45rem;
  border-radius: 999px;
  text-decoration: none;
  color: var(--color-text, #ffffff);
  background:
          radial-gradient(circle at 0% 0%, rgba(199, 255, 61, 0.12), transparent 50%),
          rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow:
          0 14px 38px rgba(0, 0, 0, 0.24),
          inset 0 1px 0 rgba(255, 255, 255, 0.08);
  transition:
          transform var(--transition-base, 0.25s ease),
          border-color var(--transition-base, 0.25s ease),
          background var(--transition-base, 0.25s ease);
}

.navbar-brand:hover {
  transform: translateY(-1px);
  border-color: rgba(199, 255, 61, 0.36);
  background:
          radial-gradient(circle at 0% 0%, rgba(199, 255, 61, 0.18), transparent 50%),
          rgba(255, 255, 255, 0.08);
}

.navbar-logo {
  position: relative;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  border-radius: 50%;
  background:
          radial-gradient(circle at 25% 20%, rgba(255, 255, 255, 0.36), transparent 28%),
          linear-gradient(135deg, #101827 0%, #202734 44%, #c7ff3d 100%);
  box-shadow:
          0 0 24px rgba(199, 255, 61, 0.22),
          inset 0 0 0 1px rgba(255, 255, 255, 0.18);
}

.navbar-logo::before {
  content: "GT";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: #ffffff;
}

.navbar-brand-text {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
  line-height: 1.08;
}

.navbar-brand-title,
.navbar-brand-sub {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  word-break: normal;
  overflow-wrap: normal;
}

.navbar-brand-title {
  font-size: clamp(0.78rem, 1vw, 0.96rem);
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text, #ffffff);
}

.navbar-brand-sub {
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--color-text-muted, rgba(255, 255, 255, 0.62));
}

.navbar-nav-wrapper {
  flex: 1 1 auto;
  min-width: 0;
  display: none;
}

.navbar-nav-list {
  list-style: none;
  padding: 0.3rem;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.18rem;
  border-radius: var(--radius-pill, 999px);
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.navbar-nav-item {
  display: inline-flex;
  flex: 0 0 auto;
}

.navbar-nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0.5rem 0.64rem;
  border-radius: var(--radius-pill, 999px);
  font-size: 0.68rem;
  font-weight: 750;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  color: var(--color-text-muted, rgba(255, 255, 255, 0.64));
  text-decoration: none;
  white-space: nowrap;
  word-break: normal;
  overflow-wrap: normal;
  transition:
          color var(--transition-base, 0.25s ease),
          background var(--transition-base, 0.25s ease),
          box-shadow var(--transition-base, 0.25s ease),
          transform var(--transition-base, 0.25s ease);
}

.navbar-nav-link:hover,
.navbar-nav-link:focus-visible {
  color: var(--color-text, #ffffff);
  background: rgba(255, 255, 255, 0.07);
  transform: translateY(-1px);
}

.navbar-nav-link.is-active {
  color: var(--color-primary-strong, #c7ff3d);
  background: rgba(199, 255, 61, 0.11);
  box-shadow: 0 0 22px rgba(199, 255, 61, 0.12);
}

.navbar-actions {
  position: relative;
  z-index: 10004;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex: 0 0 auto;
}

.navbar-cta {
  min-height: 46px;
  padding-inline: clamp(1rem, 2vw, 1.5rem);
  border-radius: var(--radius-pill, 999px);
  white-space: nowrap;
  word-break: normal;
  overflow-wrap: normal;
  box-shadow:
          0 0 34px rgba(199, 255, 61, 0.2),
          0 16px 36px rgba(0, 0, 0, 0.24);
}

.navbar-toggle {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
  border-radius: 50%;
  border: 1px solid rgba(199, 255, 61, 0.46);
  color: var(--color-text, #ffffff);
  background:
          radial-gradient(circle at 0 0, rgba(199, 255, 61, 0.16), transparent 58%),
          rgba(10, 12, 16, 0.96);
  box-shadow:
          0 0 26px rgba(199, 255, 61, 0.16),
          0 14px 34px rgba(0, 0, 0, 0.34);
  transition:
          transform var(--transition-base, 0.25s ease),
          border-color var(--transition-base, 0.25s ease),
          background var(--transition-base, 0.25s ease);
}

.navbar-toggle:hover {
  transform: translateY(-1px);
  border-color: rgba(199, 255, 61, 0.8);
  background:
          radial-gradient(circle at 0 0, rgba(199, 255, 61, 0.22), transparent 58%),
          rgba(13, 16, 20, 0.98);
}

.navbar-toggle:focus-visible {
  outline: 2px solid var(--color-outline, #c7ff3d);
  outline-offset: 3px;
}

.navbar-toggle-icon {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}

.navbar-toggle-line {
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  transition:
          transform var(--transition-base, 0.25s ease),
          opacity var(--transition-base, 0.25s ease),
          background var(--transition-base, 0.25s ease);
}

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

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

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

.navbar-toggle[aria-expanded="true"] .navbar-toggle-line {
  background: var(--color-primary-strong, #c7ff3d);
}

.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 10000;
  opacity: 0;
  pointer-events: none;
  border: 0;
  background: rgba(0, 0, 0, 0.54);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: opacity var(--transition-base, 0.25s ease);
}

.mobile-nav-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav {
  position: fixed;
  top: calc(var(--nav-height, 88px) + 0.8rem);
  right: clamp(1rem, 4vw, 2rem);
  z-index: 10001;
  width: min(430px, calc(100vw - 2rem));
  max-height: calc(100dvh - var(--nav-height, 88px) - 1.6rem);
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-10px) scale(0.98);
  border-radius: 28px;
  background:
          radial-gradient(circle at 0 0, rgba(199, 255, 61, 0.12), transparent 46%),
          radial-gradient(circle at 100% 0, rgba(122, 229, 255, 0.08), transparent 42%),
          rgba(5, 6, 8, 0.98);
  border: 1px solid rgba(199, 255, 61, 0.16);
  box-shadow:
          0 30px 80px rgba(0, 0, 0, 0.56),
          inset 0 1px 0 rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  transition:
          opacity var(--transition-base, 0.25s ease),
          transform var(--transition-base, 0.25s ease);
}

.mobile-nav.is-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.mobile-nav-inner {
  padding-block: 0;
}

.mobile-nav-body {
  width: 100%;
  padding: 0.9rem;
}

.mobile-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.42rem;
}

.mobile-nav-item {
  border-radius: 18px;
  overflow: hidden;
}

.mobile-nav-link {
  position: relative;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.82rem 0.95rem;
  border-radius: inherit;
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-text-soft, rgba(255, 255, 255, 0.74));
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.07);
  transition:
          background var(--transition-base, 0.25s ease),
          border-color var(--transition-base, 0.25s ease),
          color var(--transition-base, 0.25s ease),
          transform var(--transition-base, 0.25s ease);
}

.mobile-nav-link::after {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  flex: 0 0 auto;
  border-radius: 999px;
  background: radial-gradient(circle, #c7ff3d 0, #7ae5ff 70%);
  box-shadow: 0 0 12px rgba(199, 255, 61, 0.65);
  opacity: 0.7;
}

.mobile-nav-link:hover,
.mobile-nav-link:focus-visible,
.mobile-nav-link.is-active {
  background: rgba(199, 255, 61, 0.09);
  border-color: rgba(199, 255, 61, 0.42);
  color: var(--color-text, #ffffff);
  transform: translateX(2px);
}

.mobile-nav-link.is-active {
  color: var(--color-primary-strong, #c7ff3d);
}

.mobile-nav-link-accent {
  background:
          radial-gradient(circle at 0 0, rgba(199, 255, 61, 0.2), transparent 60%),
          rgba(255, 255, 255, 0.055);
}

.mobile-nav-item-note {
  margin-top: 0.45rem;
  padding: 0.9rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.mobile-nav-note {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--color-text-muted, rgba(255, 255, 255, 0.58));
}

@media (min-width: 1320px) {
  .navbar-nav-wrapper {
    display: block;
  }

  .navbar-toggle {
    display: none;
  }

  .mobile-nav,
  .mobile-nav-backdrop {
    display: none;
  }
}

@media (max-width: 767.98px) {
  .navbar-inner {
    min-height: 78px;
    gap: 0.75rem;
  }

  .navbar-brand {
    max-width: calc(100vw - 6rem);
    gap: 0.62rem;
    padding-right: 0.72rem;
  }

  .navbar-logo {
    width: 38px;
    height: 38px;
  }

  .navbar-brand-title {
    font-size: 0.72rem;
    letter-spacing: 0.075em;
  }

  .navbar-brand-sub {
    font-size: 0.58rem;
    letter-spacing: 0.08em;
  }

  .navbar-cta {
    display: none;
  }

  .navbar-toggle {
    width: 46px;
    height: 46px;
  }

  .mobile-nav {
    top: calc(var(--nav-height, 78px) + 0.65rem);
    left: 1rem;
    right: 1rem;
    width: auto;
    border-radius: 24px;
  }
}