/* ============================================================
   fobproto.com — megamenu.css
   Full-width mega menu with 4 service lines, SVG icons.
   Desktop: hover-triggered dropdown below nav bar.
   Mobile: collapses to single-column accordion.
   ============================================================ */

/* Reset nav — make it relative so megamenu anchors correctly */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
  backdrop-filter: blur(8px);
  background: rgba(244, 242, 236, 0.92);
}

.nav-inner,
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--wide-max);
  margin: 0 auto;
  padding: 0.875rem 2rem;
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
}

/* Main nav menu — holds the trigger links */
.nav-menu {
  display: flex;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}

.nav-menu > li {
  position: static; /* mega menu spans viewport, anchor to nav not li */
}

.nav-menu > li > a,
.nav-menu > li > .mega-trigger {
  display: block;
  padding: 1rem 1.25rem;
  font-size: 0.9375rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: color 0.15s ease;
}

.nav-menu > li > a:hover,
.nav-menu > li > .mega-trigger:hover,
.nav-menu > li.has-mega:hover > .mega-trigger {
  color: var(--accent);
}

/* Dropdown indicator */
.mega-trigger::after {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  margin-left: 0.5rem;
  vertical-align: 2px;
  transition: transform 0.2s ease;
}

.nav-menu > li.has-mega:hover > .mega-trigger::after {
  transform: rotate(225deg);
  vertical-align: -2px;
}

.nav-cta {
  display: inline-block;
  padding: 0.625rem 1.25rem;
  background: var(--accent);
  color: var(--bg);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid var(--accent);
  transition: background 0.15s ease;
}

.nav-cta:hover { background: var(--accent-dark); }

/* ============ MEGA MENU PANEL ============ */
.mega-panel {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  background: var(--bg);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  box-shadow: 0 8px 24px rgba(26, 29, 33, 0.06);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 99;
  max-height: calc(100vh - 64px);
  overflow-y: auto;
}

.has-mega:hover > .mega-panel,
.has-mega:focus-within > .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-inner {
  max-width: var(--wide-max);
  margin: 0 auto;
  padding: 2.5rem 2rem 2rem;
  display: grid;
  grid-template-columns: 2fr 2fr 1fr;
  gap: 3rem;
}

.mega-col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mega-col-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--ink-subtle);
  text-transform: uppercase;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
}

/* Two-sub-col layout for when a mega column has two sub-groups (Metals / Plastics) */
.mega-subgrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.mega-item {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 0.75rem;
  align-items: start;
  padding: 0.5rem 0;
  text-decoration: none;
  color: var(--ink);
  transition: color 0.15s ease;
  line-height: 1.35;
}

.mega-item:hover { color: var(--accent); }

.mega-item-icon {
  width: 24px;
  height: 24px;
  stroke: var(--ink-muted);
  fill: none;
  stroke-width: 1.25;
  transition: stroke 0.15s ease;
  margin-top: 2px;
}

.mega-item:hover .mega-item-icon { stroke: var(--accent); }

.mega-item-body {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  min-width: 0;
}

.mega-item-title {
  font-size: 0.9375rem;
  font-weight: 500;
}

.mega-item-desc {
  font-size: 0.75rem;
  color: var(--ink-subtle);
  line-height: 1.45;
}

/* Feature column — right side of mega menu */
.mega-feature {
  background: var(--bg-dark);
  color: var(--bg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mega-feature-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: rgba(244, 242, 236, 0.6);
  text-transform: uppercase;
}

.mega-feature-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--bg);
  margin: 0.25rem 0 0.5rem;
  line-height: 1.25;
}

.mega-feature-desc {
  font-size: 0.8125rem;
  line-height: 1.55;
  color: rgba(244, 242, 236, 0.8);
  margin: 0 0 1rem;
}

.mega-feature-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  background: var(--accent);
  color: var(--bg);
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 500;
  align-self: flex-start;
  margin-top: auto;
  transition: background 0.15s ease;
}

.mega-feature-cta:hover { background: var(--accent-dark); }

.mega-feature-cta::after {
  content: "→";
  font-family: var(--font-mono);
}

/* Mega bottom — aux links/footer inside mega panel */
.mega-bottom {
  grid-column: 1 / -1;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--ink-subtle);
}

.mega-bottom a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
}

.mega-bottom a:hover { color: var(--accent); }

/* ============ MOBILE ============ */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  width: 40px;
  height: 40px;
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
  stroke: var(--ink);
}

@media (max-width: 1024px) {
  .nav-toggle { display: block; }

  .nav-menu,
  .nav-cta {
    display: none;
  }

  .nav.nav-open .nav-menu,
  .nav.nav-open .nav-cta {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    padding: 2rem;
    align-items: stretch;
    overflow-y: auto;
    border-top: 1px solid var(--rule);
    z-index: 98;
  }

  .nav.nav-open .nav-menu > li {
    border-bottom: 1px dashed var(--rule);
  }

  .nav.nav-open .nav-menu > li > a,
  .nav.nav-open .nav-menu > li > .mega-trigger {
    display: block;
    padding: 1rem 0;
    text-align: left;
    width: 100%;
  }

  .nav.nav-open .nav-cta {
    position: static;
    display: block;
    background: var(--accent);
    color: var(--bg);
    text-align: center;
    margin-top: 1rem;
  }

  /* Mobile: mega panel becomes an inline accordion */
  .mega-panel {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .has-mega.mega-open > .mega-panel {
    max-height: 1500px;
  }

  .mega-inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1rem 0;
  }

  .mega-subgrid { grid-template-columns: 1fr; gap: 0.5rem; }

  .mega-feature { padding: 1.25rem; }
}

/* ============ ACCESSIBILITY ============ */
.mega-trigger:focus-visible,
.nav-menu a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}