.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.header-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-10);
  text-decoration: none;
}

.header-logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 40%;
  background: radial-gradient(circle at 30% 0, rgba(255, 255, 255, 0.15), transparent 55%),
              linear-gradient(135deg, #ff7a2f, #ffb238);
  box-shadow: var(--shadow-glow-primary);
}

.header-logo-text {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.header-logo-sub {
  display: none;
  font-size: var(--font-size-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

@media (min-width: 768px) {
  .header-logo-sub {
    display: inline-block;
    border-left: 1px solid rgba(255, 255, 255, 0.14);
    padding-left: var(--space-10);
    margin-left: var(--space-6);
  }
}

.header-nav {
  display: flex;
}

.header-nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-24);
}

.header-nav-link {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-text-soft);
  padding: 0.3rem 0;
  position: relative;
}

.header-nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, rgba(255, 122, 47, 0.1), rgba(255, 122, 47, 0.9));
  opacity: 0;
  transform: scaleX(0.3);
  transform-origin: center;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.header-nav-link:hover::after,
.header-nav-link:focus-visible::after {
  opacity: 1;
  transform: scaleX(1);
}

.header-nav-item--cta {
  margin-left: var(--space-12);
}

.header-cta {
  --btn-bg: var(--color-primary);
  --btn-bg-hover: var(--color-primary-strong);
  --btn-color: #050505;
}

.header-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-pill);
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background-color: rgba(5, 5, 7, 0.9);
  box-shadow: var(--shadow-soft);
}

.header-toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-ivory-detail);
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.header-toggle-bar + .header-toggle-bar {
  margin-top: 4px;
}

.header-toggle.is-open .header-toggle-bar:nth-child(1) {
  transform: translateY(6px) 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(-6px) rotate(-45deg);
}

@media (max-width: 899px) {
  .header-toggle {
    display: flex;
    flex-direction: column;
  }

  .header-nav {
    position: fixed;
    inset-inline: 0;
    top: var(--header-height);
    background: radial-gradient(circle at 0 0, rgba(255, 122, 47, 0.15), transparent 55%),
                linear-gradient(to bottom, rgba(5, 6, 7, 0.98), rgba(5, 6, 7, 0.96));
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal), transform var(--transition-normal);
  }

  .header-nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-24) var(--space-24) var(--space-32);
  }

  .header-nav-item--cta {
    width: 100%;
  }

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

  .header-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    box-shadow: var(--shadow-deep);
  }
}

@media (max-width: 480px) {
  .header-logo-text {
    font-size: var(--font-size-md);
  }

  .header-inner {
    gap: var(--space-16);
  }
}

.header-nav-link:focus-visible,
.header-toggle:focus-visible,
.header-logo:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}