.mpl-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: radial-gradient(circle at top, rgba(240, 197, 108, 0.1), transparent 55%),
    linear-gradient(to bottom, rgba(3, 8, 16, 0.96), rgba(6, 12, 22, 0.96));
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(16px);
}

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

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

.mpl-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.mpl-header__logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 40% 60% 55% 45%;
  background:
    radial-gradient(circle at 30% 20%, #ffe9b3 0, transparent 55%),
    radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.18) 0, transparent 60%),
    linear-gradient(135deg, #1d7fbf, #3e8e4a 60%, #f0c56c 100%);
  box-shadow: 0 0 0 2px rgba(6, 10, 16, 0.9), 0 0 0 3px rgba(240, 197, 108, 0.35), var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.mpl-header__logo-mark::after {
  content: "";
  position: absolute;
  inset: 20% 18%;
  border-radius: 50% 60% 40% 50%;
  border: 2px solid rgba(5, 10, 18, 0.65);
  box-shadow: inset 0 0 18px rgba(0, 0, 0, 0.7);
}

.mpl-header__texts {
  display: flex;
  flex-direction: column;
}

.mpl-header__site-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #fdf6e3;
}

.mpl-header__tagline {
  font-size: var(--font-size-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Nav */

.mpl-header__nav {
  display: flex;
}

.mpl-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  list-style: none;
  margin: 0;
  padding: 0;
}

.mpl-header__nav-link {
  position: relative;
  padding: 0.25rem 0.35rem;
  font-size: var(--font-size-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-soft);
}

.mpl-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 0;
  height: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-wheat), var(--color-primary));
  transition: width var(--transition-base);
}

.mpl-header__nav-link:hover {
  color: #fff9e6;
}

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

.mpl-header__nav-link:focus-visible {
  outline: 2px solid var(--color-wheat);
  outline-offset: 4px;
}

.mpl-header__nav-item--highlight .mpl-header__nav-link {
  color: #fff5cc;
}

.mpl-header__nav-item--highlight .mpl-header__nav-link::after {
  background: linear-gradient(90deg, var(--color-wheat), var(--color-success));
}

/* Mobile menu toggle */

.mpl-header__menu-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background-color: rgba(6, 10, 18, 0.92);
  color: var(--color-text-soft);
  cursor: pointer;
}

.mpl-header__menu-toggle:focus-visible {
  outline: 2px solid var(--color-wheat);
  outline-offset: 3px;
}

.mpl-header__menu-text {
  font-size: var(--font-size-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.mpl-header__menu-icon {
  width: 20px;
  height: 16px;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
}

.mpl-header__menu-icon span {
  display: block;
  height: 2px;
  border-radius: 4px;
  background: #f8f3df;
  transition: transform var(--transition-base), opacity var(--transition-base), width var(--transition-base);
}

/* Mobile layout */

@media (max-width: 767px) {
  .mpl-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: linear-gradient(to bottom, rgba(5, 10, 18, 0.98), rgba(5, 10, 18, 0.96));
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: max-height var(--transition-slow), opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  }

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

  .mpl-header__nav-link {
    font-size: 0.8rem;
  }

  .mpl-header__nav--open {
    max-height: 320px;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .mpl-header__menu-toggle {
    display: inline-flex;
  }
}

/* Desktop layout */

@media (min-width: 768px) {
  .mpl-header__menu-toggle {
    display: none;
  }

  .mpl-header__nav {
    position: static;
    opacity: 1;
    visibility: visible;
    max-height: none;
    transform: none;
    background: transparent;
    border-bottom: none;
  }
}

/* Menu toggle active state */

.mpl-header__menu-toggle[aria-expanded="true"] .mpl-header__menu-icon span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mpl-header__menu-toggle[aria-expanded="true"] .mpl-header__menu-icon span:nth-child(2) {
  opacity: 0;
}

.mpl-header__menu-toggle[aria-expanded="true"] .mpl-header__menu-icon span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}