.kh-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: radial-gradient(circle at top left, rgba(34, 23, 19, 0.96), rgba(15, 11, 9, 0.96));
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.kh-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

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

.kh-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-text);
}

.kh-header__logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 40% 60% 45% 55%;
  background: radial-gradient(circle at 30% 20%, #e0a561, #c77b30 40%, #7c6250 100%);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.kh-header__logo-mark::after {
  content: "";
  position: absolute;
  inset: 18% 22% 30% 22%;
  border-radius: 999px;
  border: 1px solid rgba(32, 22, 18, 0.55);
  opacity: 0.9;
}

.kh-header__logo-text {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}

.kh-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.kh-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.kh-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-bottom: 0.15rem;
}

.kh-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-strong));
  transition: width var(--transition-normal);
}

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

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

.kh-header__actions {
  display: flex;
  align-items: center;
}

.kh-header__cta {
  font-size: var(--font-size-xs);
  padding-inline: 1.4rem;
}

/* Mobile toggle */
.kh-header__toggle {
  display: none;
  position: relative;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(9, 6, 5, 0.8);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  color: var(--color-text);
}

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

/* Mobile layout */
@media (max-width: 768px) {
  .kh-header__inner {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
  }

  .kh-header__toggle {
    display: inline-flex;
  }

  .kh-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: radial-gradient(circle at top, rgba(34, 23, 19, 0.98), rgba(10, 7, 6, 0.98));
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    display: none;
    flex-direction: column;
    padding: var(--space-3) var(--space-4) var(--space-5);
    box-shadow: var(--shadow-md);
  }

  .kh-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
  }

  .kh-header__nav-link {
    font-size: var(--font-size-base);
    letter-spacing: 0.16em;
  }

  .kh-header__actions {
    width: 100%;
  }

  .kh-header__actions .btn {
    width: 100%;
    justify-content: center;
  }

  /* When JS enables the menu */
  .kh-header--menu-open .kh-header__nav {
    display: flex;
  }

  .kh-header--menu-open .kh-header__toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .kh-header--menu-open .kh-header__toggle-bar:nth-child(2) {
    opacity: 0;
    width: 0;
  }

  .kh-header--menu-open .kh-header__toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* Medium screens adjustments */
@media (max-width: 960px) and (min-width: 769px) {
  .kh-header__nav-list {
    gap: var(--space-3);
  }

  .kh-header__logo-text {
    font-size: 1.05rem;
  }
}

/* High contrast for focus inside header */
.kh-header a:focus-visible,
.kh-header button:focus-visible {
  outline-color: var(--color-primary-strong);
  outline-offset: 3px;
}