/* COZQ v3 – Jitter-style mega menus and nav motion */

:root {
  --nav-mega-ease: cubic-bezier(0.33, 1.42, 0.05, 0.96);
  --nav-mega-shadow:
    0 4px 6px rgba(13, 13, 13, 0.04),
    0 12px 28px rgba(13, 13, 13, 0.08),
    0 24px 56px rgba(13, 13, 13, 0.12);
}

/* Header visible by default; entrance slide is GSAP enhancement only */
.site-header.site-header--floating.is-entered,
.site-header.site-header--floating.is-menu-open {
  transform: translateY(0);
}

.nav-pill__primary {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  flex: 1;
  min-width: 0;
}

.nav-pill {
  position: relative;
  transition: box-shadow 0.35s ease;
}

/* Subtle polish on scroll – labels stay visible */
.site-header.is-scrolled .nav-pill {
  box-shadow: 0 10px 36px rgba(13, 13, 13, 0.22);
}

/* Nav bar stays interactive above the mega backdrop */
.nav-shell {
  position: relative;
  z-index: 1003;
}

/* Link dimming when a mega menu is open */
.nav-pill__nav.is-mega-active .nav-pill__link,
.nav-pill__nav.is-mega-active .nav-pill__dropdown-toggle {
  transition: opacity 0.25s ease, color 0.2s ease;
}

.nav-pill__nav.is-mega-active .nav-pill__link.is-dimmed,
.nav-pill__nav.is-mega-active .nav-pill__dropdown-toggle.is-dimmed {
  opacity: 0.62;
}

.nav-pill__nav.is-mega-active .nav-pill__dropdown.is-open .nav-pill__dropdown-toggle,
.nav-pill__nav.is-mega-active .nav-pill__link:not(.is-dimmed),
.nav-pill__nav.is-mega-active .nav-pill__dropdown-toggle:not(.is-dimmed) {
  opacity: 1;
}

/* Mega dropdown trigger */
@media (min-width: 900px) {
  .nav-pill__nav {
    flex-wrap: nowrap;
  }

  .nav-pill {
    overflow: visible;
  }

  /* Mega triggers use JS hover zones only – no invisible bridge into adjacent links */
  .nav-pill__dropdown--mega::after {
    content: none;
    display: none;
  }

  .nav-pill__dropdown--mega .nav-pill__dropdown-panel {
    display: none;
  }

  /* Floating panel below nav pill – must not live in pill document flow */
  .nav-mega-panel {
    position: fixed;
    left: 50%;
    top: calc(var(--nav-mega-top, 5rem));
    width: min(72rem, calc(100vw - 2rem));
    min-width: min(60rem, calc(100vw - 2rem));
    z-index: 1004;
    visibility: hidden;
    pointer-events: none;
    opacity: 0;
    transform: translateX(-50%) translateY(10px) scale(0.96);
    transform-origin: top center;
    border-radius: 1.5rem;
    background: var(--white);
    box-shadow: var(--nav-mega-shadow);
    overflow: hidden;
    transition:
      opacity 0.36s var(--nav-mega-ease),
      transform 0.36s var(--nav-mega-ease),
      visibility 0s linear 0.36s;
  }

  /* Visibility toggled by JS after initial state is set – avoids open flash */
  .nav-mega-panel.is-panel-active {
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
  }

  /* GSAP drives transform/opacity – disable CSS transitions to prevent conflict */
  .nav-mega-panel.is-gsap-active {
    transition: none;
  }

  .nav-mega-panel.is-panel-active:not(.is-gsap-active) {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
  }

  .nav-mega-panel__inner {
    padding: 1.65rem 1.75rem;
  }

  .nav-mega-grid {
    display: grid;
    gap: 1rem;
  }

  .nav-mega-grid--services {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .nav-mega-grid--case-studies {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-bottom: 0.75rem;
  }

  @media (max-width: 1099px) {
    .nav-mega-grid--services {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  .nav-mega-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-height: 8.75rem;
    padding: 1.35rem 1.5rem;
    border-radius: 1.125rem;
    background: var(--gray-50);
    border: 1px solid transparent;
    color: var(--onyx);
    text-decoration: none;
    transition:
      transform 0.28s var(--nav-mega-ease),
      border-color 0.2s ease,
      box-shadow 0.28s ease,
      background 0.2s ease;
  }

  .nav-mega-card:hover,
  .nav-mega-card:focus-visible {
    transform: translateY(-2px);
    border-color: rgba(255, 77, 32, 0.35);
    box-shadow: 0 10px 28px rgba(255, 77, 32, 0.12);
    background: var(--white);
    outline: none;
  }

  .nav-mega-card.is-active {
    border-color: rgba(255, 77, 32, 0.5);
    background: var(--white);
  }

  .nav-mega-card__tag {
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--gray-500);
    line-height: 1.2;
  }

  .nav-mega-card__title {
    font-family: var(--v3-font-display, var(--font-heading));
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--onyx);
  }

  .nav-mega-card__desc {
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--gray-600);
    margin-top: auto;
  }

  .nav-mega-card--study {
    min-height: 8rem;
  }

  .nav-mega-panel__footer {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--energy-orange);
    text-decoration: none;
    padding: 0.35rem 0.15rem;
    transition: opacity 0.2s ease;
  }

  .nav-mega-panel__footer:hover,
  .nav-mega-panel__footer:focus-visible {
    opacity: 0.85;
    outline: none;
  }

  .nav-mega-panel__footer::after {
    content: '→';
    font-size: 0.9em;
  }

  /* Backdrop – sits below nav shell; page area only for click-to-close */
  .nav-mega-backdrop {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    top: var(--nav-mega-top, 4.5rem);
    z-index: 1001;
    background: rgba(5, 5, 5, 0.28);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .nav-mega-backdrop.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
}

@media (max-width: 899px) {
  .nav-mega-panel,
  .nav-mega-backdrop {
    display: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav-mega-card {
    transition: border-color 0.2s ease, background 0.2s ease;
  }

  .nav-mega-card:hover,
  .nav-mega-card:focus-visible {
    transform: none;
  }

  .nav-mega-panel {
    transition: opacity 0.15s ease, visibility 0.15s ease;
  }

  .nav-mega-panel.is-panel-active:not(.is-gsap-active) {
    transition: opacity 0.15s ease, visibility 0s;
  }
}