.site-header {
  position: sticky;
  top: 0;
  z-index: 9999;
  background: linear-gradient(to bottom, rgba(5, 6, 8, 0.98), rgba(5, 6, 8, 0.94));
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.6rem;
}

.header-brand {
  display: flex;
  align-items: center;
}

.header-logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--color-text);
}

.header-logo-mark {
  position: relative;
  width: 34px;
  height: 34px;
  border-radius: 40%;
  background:
          radial-gradient(circle at 30% 0, rgba(255, 255, 255, 0.4), transparent 55%),
          radial-gradient(circle at 80% 80%, rgba(217, 76, 76, 0.6), transparent 55%),
          radial-gradient(circle at 0 100%, rgba(12, 132, 80, 0.6), transparent 55%),
          linear-gradient(135deg, #050608, #181c25);
  box-shadow: 0 0 0 1px rgba(255, 191, 91, 0.45), 0 10px 25px rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-logo-chip {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.7);
}

.header-logo-chip--gold {
  top: 6px;
  left: 7px;
  background: linear-gradient(135deg, #f0a94a, #ffb347);
}

.header-logo-chip--red {
  bottom: 7px;
  right: 6px;
  background: linear-gradient(135deg, #d94c4c, #ff7b7b);
}

.header-logo-chip--green {
  bottom: 6px;
  left: 10px;
  background: linear-gradient(135deg, #0d8a4a, #1fbf7b);
}

.header-logo-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.header-logo-title {
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.header-logo-subtitle {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.header-nav {
  display: flex;
  align-items: center;
}

.header-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 1px);
  padding: 0.75rem var(--space-md) 0.9rem;
  background: linear-gradient(to bottom, rgba(5, 6, 8, 0.98), rgba(5, 6, 8, 0.98));
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.9);
  transform-origin: top;
  transform: scaleY(0.96);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
          opacity var(--transition-normal),
          transform var(--transition-normal),
          visibility var(--transition-normal);
}

.header-nav.is-open .header-nav-list {
  opacity: 1;
  visibility: visible;
  transform: scaleY(1);
  pointer-events: auto;
}

.header-nav-item {
  display: flex;
}

.header-nav-item--cta {
  margin-top: 0.4rem;
}

.header-nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-soft);
  padding-block: 0.35rem;
}

.header-nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  width: 0;
  background: linear-gradient(90deg, rgba(240, 169, 74, 0.9), rgba(217, 76, 76, 0.9));
  transition: width var(--transition-normal);
}

.header-nav-link:hover {
  color: var(--color-text);
}

.header-nav-link:hover::after {
  width: 100%;
}

.header-nav-link--active {
  color: var(--color-accent-amber);
}

.header-nav-link--active::after {
  width: 100%;
}

.header-nav-cta {
  width: 100%;
  justify-content: center;
}

.header-nav-cta-icon {
  display: inline-flex;
}

.header-toggle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(5, 6, 8, 0.96);
  color: var(--color-text);
  cursor: pointer;
  padding: 0;
  margin-left: auto;
  transition:
          background-color var(--transition-normal),
          border-color var(--transition-normal),
          transform var(--transition-fast);
}

.header-toggle:hover {
  border-color: rgba(240, 169, 74, 0.7);
  background: rgba(10, 12, 18, 0.98);
  transform: translateY(-1px);
}

.header-toggle:active {
  transform: translateY(0);
}

.header-toggle-bar {
  width: 16px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-text);
  transition:
          transform var(--transition-normal),
          opacity var(--transition-normal),
          background-color var(--transition-normal);
}

.header-toggle-bar + .header-toggle-bar {
  margin-top: 3px;
}

.header-toggle.is-open .header-toggle-bar:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.header-toggle.is-open .header-toggle-bar:nth-child(2) {
  opacity: 0;
}

.header-toggle.is-open .header-toggle-bar:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

@media (min-width: 960px) {
  .header-toggle {
    display: none;
  }

  .header-container {
    padding-block: 0.55rem;
    gap: var(--space-xl);
  }

  .header-nav-list {
    position: static;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--space-md);
    padding: 0;
    background: transparent;
    border: none;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
  }

  .header-nav-item--cta {
    margin-top: 0;
    margin-left: var(--space-sm);
  }

  .header-nav-cta {
    width: auto;
  }
}