/* Instant Mega Menu (reversible module) */
.instant-header-mega {
  position: relative;
  margin-top: 0.5rem;
  z-index: 20;
}

.instant-header-mega__trigger {
  appearance: none;
  border: 1px solid rgb(from var(--bg-border-cool) r g b / 0.28);
  background: rgb(from var(--bg-surface) r g b / 0.82);
  color: var(--text-primary);
  border-radius: 999px;
  padding: 0.42rem 0.88rem;
  font: 600 0.95rem/1 var(--wp--preset--font-family--jost, system-ui);
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: border-color 150ms ease, transform 150ms ease;
}

.instant-header-mega__trigger:hover,
.instant-header-mega__trigger:focus-visible {
  border-color: rgb(from var(--bg-border-cool) r g b / 0.45);
  transform: translateY(-1px);
}

.instant-header-mega__trigger:focus-visible {
  outline: 2px solid var(--text-feature);
  outline-offset: 2px;
}

.instant-header-mega__panel {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  right: 0;
  border-radius: 18px;
  border: 1px solid rgb(from var(--bg-border-cool) r g b / 0.22);
  background: rgb(from var(--bg-surface) r g b / 0.96);
  box-shadow: 0 16px 40px rgb(from var(--bg-shadow-base) r g b / 0.2);
  opacity: 0;
  transform: translateY(-8px);
  max-height: 0;
  overflow: hidden;
  pointer-events: none;
  transition: max-height 320ms ease, opacity 220ms ease, transform 220ms ease;
}

.instant-header-mega.is-open .instant-header-mega__panel {
  opacity: 1;
  transform: translateY(0);
  max-height: 72vh;
  pointer-events: auto;
}

.instant-header-mega__inner {
  padding: clamp(1rem, 2vw, 1.35rem);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
}

.instant-header-mega__col {
  border-radius: 14px;
  background: rgb(from var(--bg-page) r g b / 0.7);
  border: 1px solid rgb(from var(--bg-border-cool) r g b / 0.18);
  padding: 0.8rem 0.9rem;
}

.instant-header-mega__title {
  margin: 0 0 0.5rem;
  font: 700 0.88rem/1.1 var(--wp--preset--font-family--jost, system-ui);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-highlight);
}

.instant-header-mega__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.instant-header-mega__list li {
  margin: 0;
  padding: 0;
}

.instant-header-mega__list a {
  display: block;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.95rem;
  line-height: 1.35;
  padding: 0.36rem 0;
}

.instant-header-mega__list a:hover,
.instant-header-mega__list a:focus-visible {
  color: var(--text-highlight);
}

@media (max-width: 1080px) {
  .instant-header-mega__inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 740px) {
  .instant-header-mega__panel {
    position: relative;
    top: 0.4rem;
  }

  .instant-header-mega__inner {
    grid-template-columns: 1fr;
  }
}