/* ==========================================================
   HEADER MEGA MENU — LeadCrunch Media
   Add-on for header.php. Uses the same design tokens as
   style.css (--ink, --paper, --signal, --amber, --hairline...).
   Link this AFTER style.css on every page:
     <link rel="stylesheet" href="/assets/header-mega-menu.css">
   ========================================================== */

/* ── Nav row layout ─────────────────────────── */
.mega-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
@media (max-width: 900px) { .mega-nav { display: none; } }

.mega-item { position: relative; }

.mega-trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--muted);
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  padding: 12px 14px;
  cursor: pointer;
  transition: color 0.25s;
}
.mega-trigger:hover,
.mega-item.is-open .mega-trigger {
  color: var(--paper);
}

.mega-caret {
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  transition: transform 0.3s var(--ease-out);
  opacity: 0.7;
}
.mega-item.is-open .mega-caret {
  transform: rotate(225deg) translateY(1px);
}

/* ── Panel ──────────────────────────────────── */
.mega-panel {
  position: fixed;
  left: 0; right: 0;
  top: 70px;
  background: var(--surface);
  border-bottom: 1px solid var(--hairline);
  box-shadow: 0 24px 48px -16px rgba(0, 0, 0, 0.45);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.25s var(--ease-out), transform 0.25s var(--ease-out), visibility 0.25s;
  z-index: 90;
}
.mega-item.is-open .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-panel-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 40px calc(var(--rail-x) + 56px) 48px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 56px;
}

.mega-col-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal-soft);
  margin: 0 0 18px;
}

.mega-links { list-style: none; display: grid; gap: 4px; }
.mega-links li a {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 10px 12px;
  border-radius: var(--radius-card);
  text-transform: none;
  letter-spacing: normal;
  transition: background 0.2s;
}
.mega-links li a:hover { background: var(--surface-raised); }
.mega-links li a:hover .mega-link-title { color: var(--amber); }

.mega-link-title {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--paper);
  transition: color 0.2s;
}
.mega-link-desc {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--muted);
}

/* ── Feature panel (right column) ────────────── */
.mega-feature {
  border-left: 1px solid var(--hairline);
  padding-left: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.mega-feature-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber-soft);
}
.mega-feature-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 500;
  line-height: 1.3;
  color: var(--paper);
  margin: 14px 0 10px;
  text-transform: none;
  letter-spacing: normal;
}
.mega-feature-body {
  font-family: var(--font-body);
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--paper-dim);
  text-transform: none;
  letter-spacing: normal;
  margin: 0 0 18px;
}
.mega-feature-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--signal-soft);
  transition: color 0.2s;
}
.mega-feature-link:hover { color: var(--amber); }

/* ── Mobile hamburger toggle ─────────────────── */
.mega-mobile-toggle {
  display: none;
  width: 32px;
  height: 22px;
  background: none;
  border: none;
  padding: 0;
  flex-direction: column;
  justify-content: space-between;
}
.mega-mobile-toggle span {
  display: block;
  height: 1.5px;
  width: 100%;
  background: var(--paper);
  transition: transform 0.3s var(--ease-out), opacity 0.3s;
}
@media (max-width: 900px) { .mega-mobile-toggle { display: flex; } }

.mega-mobile-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(9.5px) rotate(45deg);
}
.mega-mobile-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.mega-mobile-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-9.5px) rotate(-45deg);
}

/* ── Mobile panel ─────────────────────────────── */
.mega-mobile-panel {
  display: none;
  position: fixed;
  top: 65px; left: 0; right: 0; bottom: 0;
  background: var(--ink);
  overflow-y: auto;
  padding: 12px calc(var(--rail-x) + 12px) 40px;
  z-index: 95;
}
.mega-mobile-panel.is-open { display: block; }

.mega-mobile-group { border-bottom: 1px solid var(--hairline); }
.mega-mobile-trigger {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  padding: 18px 4px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.mega-mobile-trigger::after {
  content: '+';
  font-family: var(--font-body);
  color: var(--muted);
  font-size: 1.3rem;
  line-height: 1;
}
.mega-mobile-group.is-open .mega-mobile-trigger::after { content: '−'; }

.mega-mobile-links {
  list-style: none;
  display: none;
  flex-direction: column;
  padding: 0 4px 18px;
  gap: 4px;
}
.mega-mobile-group.is-open .mega-mobile-links { display: flex; }
.mega-mobile-links a {
  display: block;
  padding: 10px 8px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--paper-dim);
  border-radius: var(--radius-card);
}
.mega-mobile-links a:hover { background: var(--surface-raised); color: var(--paper); }

.mega-mobile-cta { display: block; text-align: center; margin: 24px 4px 0; }

/* ── Small screens: single-column mega panel fallback ── */
@media (max-width: 1080px) {
  .mega-panel-inner { grid-template-columns: 1fr; gap: 24px; }
  .mega-feature { border-left: none; border-top: 1px solid var(--hairline); padding-left: 0; padding-top: 24px; }
}