.gtl-header {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: radial-gradient(circle at top left, rgba(214, 166, 58, 0.09), transparent 55%),
              rgba(5, 6, 9, 0.96);
  backdrop-filter: blur(22px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.gtl-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

.gtl-header__brand {
  display: flex;
  align-items: center;
}

.gtl-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.gtl-header__logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(214, 166, 58, 0.7);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 30% 20%, rgba(214, 166, 58, 0.55), transparent 60%),
              rgba(10, 13, 20, 0.95);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.02), 0 10px 25px rgba(0, 0, 0, 0.6);
}

.gtl-header__logo-chip {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(5, 6, 9, 0.9);
  background: conic-gradient(from 160deg, #e9c96a, #c9942f, #e9c96a);
}

.gtl-header__logo-text {
  display: flex;
  flex-direction: column;
}

.gtl-header__logo-title {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.gtl-header__logo-subtitle {
  font-size: var(--font-size-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.gtl-header__nav {
  display: flex;
}

.gtl-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.gtl-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.gtl-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #e3b548, #c5922f);
  transition: width var(--transition-normal);
}

.gtl-header__nav-link:hover,
.gtl-header__nav-link:focus-visible {
  color: var(--color-text);
}

.gtl-header__nav-link:hover::after,
.gtl-header__nav-link:focus-visible::after {
  width: 100%;
}

.gtl-header__nav-link--cta {
  padding: 0.45rem 1.3rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(214, 166, 58, 0.9);
  background: radial-gradient(circle at top left, rgba(214, 166, 58, 0.4), rgba(5, 6, 9, 0.95));
  color: #050609;
  background-image: linear-gradient(135deg, #e3b548, #c5922f);
  box-shadow: var(--shadow-soft);
}

.gtl-header__nav-link--cta::after {
  display: none;
}

.gtl-header__nav-link--cta:hover,
.gtl-header__nav-link--cta:focus-visible {
  transform: translateY(-1px);
  box-shadow: var(--shadow-elevated);
  color: #050609;
}

.gtl-header__toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background-color: rgba(10, 13, 20, 0.95);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.gtl-header__toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.gtl-header__toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-text);
  transition: transform var(--transition-normal), opacity var(--transition-normal), translate var(--transition-normal);
}

.gtl-header__toggle-bar + .gtl-header__toggle-bar {
  margin-top: 3px;
}

.gtl-header__toggle--open .gtl-header__toggle-bar:nth-child(1) {
  transform: rotate(45deg);
  translate: 0 5px;
}

.gtl-header__toggle--open .gtl-header__toggle-bar:nth-child(2) {
  opacity: 0;
}

.gtl-header__toggle--open .gtl-header__toggle-bar:nth-child(3) {
  transform: rotate(-45deg);
  translate: 0 -5px;
}

@media (max-width: 900px) {
  .gtl-header__toggle {
    display: inline-flex;
    flex-direction: column;
  }

  .gtl-header__nav {
    position: fixed;
    inset: 62px 0 auto 0;
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    background: radial-gradient(circle at top left, rgba(214, 166, 58, 0.18), transparent 60%),
                rgba(5, 6, 9, 0.98);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
  }

  .gtl-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4) var(--space-4) var(--space-5);
    gap: var(--space-3);
  }

  .gtl-header__nav-link {
    width: 100%;
    padding: 0.6rem 0;
  }

  .gtl-header__nav-link--cta {
    width: auto;
  }

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

@media (max-width: 520px) {
  .gtl-header__logo-title {
    font-size: var(--font-size-base);
  }

  .gtl-header__logo-subtitle {
    display: none;
  }
}