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

.mrc-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

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

.mrc-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  color: var(--color-text);
}

.mrc-header__logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 20%, #f2d675, #d4af37 55%, #5c4710 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.1rem;
  color: #1a1203;
  box-shadow: var(--shadow-soft);
}

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

.mrc-header__logo-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-lg);
  letter-spacing: 0.04em;
}

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

.mrc-header__nav {
  display: flex;
}

.mrc-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-16);
}

.mrc-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0.25rem 0;
}

.mrc-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #d4af37, #f2d675);
  border-radius: var(--radius-pill);
  transition: width var(--transition-normal);
}

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

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

.mrc-header__nav-item--cta .mrc-header__nav-link--btn {
  padding: 0.5rem 1.4rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(212, 175, 55, 0.8);
  background: radial-gradient(circle at top left, rgba(212, 175, 55, 0.08), transparent 55%),
              rgba(8, 8, 16, 0.9);
  color: var(--color-primary);
  box-shadow: var(--shadow-subtle);
}

.mrc-header__nav-item--cta .mrc-header__nav-link--btn::after {
  display: none;
}

.mrc-header__nav-item--cta .mrc-header__nav-link--btn:hover,
.mrc-header__nav-item--cta .mrc-header__nav-link--btn:focus-visible {
  background: linear-gradient(135deg, #d4af37, #f2d675);
  color: #1a1203;
}

.mrc-header__menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background-color: rgba(10, 10, 16, 0.9);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.mrc-header__menu-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);
}

.mrc-header__menu-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.mrc-header__menu-toggle--open .mrc-header__menu-toggle-bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

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

.mrc-header__menu-toggle--open .mrc-header__menu-toggle-bar:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
}

@media (max-width: 768px) {
  .mrc-header__menu-toggle {
    display: inline-flex;
  }

  .mrc-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: radial-gradient(circle at top, rgba(212, 175, 55, 0.06), transparent 55%),
                rgba(5, 5, 9, 0.98);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transform-origin: top;
    transform: scaleY(0.95);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition-normal),
                transform var(--transition-normal),
                visibility var(--transition-normal);
  }

  .mrc-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-12) var(--space-16) var(--space-16);
    gap: var(--space-8);
  }

  .mrc-header__nav-link {
    width: 100%;
    padding-block: 0.35rem;
  }

  .mrc-header__nav--open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: scaleY(1);
  }

  .mrc-header__nav-item--cta .mrc-header__nav-link--btn {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mrc-header__nav,
  .mrc-header__menu-toggle-bar {
    transition: none;
  }
}