/* =========================================================
   Header / navigation / mega-menu / mobile menu
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
  transition: box-shadow var(--dur-base) var(--ease-hover);
}
.site-header.is-scrolled { box-shadow: 0 8px 24px rgba(0,0,0,0.06); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-6);
  height: 100%;
}

.brand { display: flex; align-items: center; height: 100%; }
.brand img { height: 34px; width: auto; }

/* ---- Primary nav ---- */
.primary-nav { display: none; }
@media (min-width: 980px) {
  .primary-nav {
    display: flex;
    align-items: center;
    height: 100%;
    gap: var(--sp-2);
  }
}

.nav-item { position: relative; height: 100%; display: flex; align-items: center; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  height: 100%;
  padding-inline: var(--sp-4);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text-primary);
  border-bottom: 2px solid transparent;
  transition: color var(--dur-fast) var(--ease-hover),
              border-color var(--dur-base) var(--ease-out);
}
.nav-link:hover { color: var(--c-black); border-color: var(--c-yellow); }
.nav-link .chev { transition: transform var(--dur-base) var(--ease-hover); }
.nav-item:hover .nav-link .chev,
.nav-item.is-open .nav-link .chev { transform: rotate(180deg); }

/* Extend the hit area downward so the cursor path from link to panel
   never leaves interactive space (desktop only — must not leak to mobile). */
@media (min-width: 980px) {
  .nav-item--mega::after {
    content: "";
    position: absolute;
    left: 0; right: 0; top: 100%;
    height: 14px;
  }
}

.mega-panel {
  position: absolute;
  top: 100%;
  left: 50%;
  padding-top: 14px; /* padding, not margin — no dead gap */
  width: min(920px, 92vw);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out),
              visibility var(--dur-base);
}
/* Centering transform is scoped to desktop only so it can never override
   the mobile static layout below. */
@media (min-width: 980px) {
  .mega-panel { transform: translate(-50%, 6px); left: 50%; }
  .nav-item:hover .mega-panel,
  .nav-item.is-open .mega-panel {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
  }
}

.mega-panel-inner {
  background: var(--c-white);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  box-shadow: 0 24px 48px rgba(0,0,0,0.12);
  padding: var(--sp-5) var(--sp-6);
  max-height: 78vh;
  overflow-y: auto;
}

.mega-panel-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-2);
}

.mega-panel-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted) !important;
  padding: 0.35rem 0.75rem 0.5rem;
}

.mega-panel-divider {
  height: 1px;
  background: var(--border-soft);
  margin: var(--sp-4) 0;
}

.mega-panel-grid--compact {
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.mega-link--compact {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: background-color var(--dur-fast) var(--ease-hover);
}
.mega-link--compact:hover { background: var(--bg-alt); }
.mega-link--compact svg { flex: none; width: 17px; height: 17px; color: var(--c-black); }
.mega-link--compact span { font-size: 0.8125rem; font-weight: 600; line-height: 1.3; }

.mega-panel-viewall {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin: var(--sp-3) 0.75rem 0;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--c-black);
}
.mega-panel-viewall svg { width: 14px; height: 14px; transition: transform var(--dur-fast) var(--ease-hover); }
.mega-panel-viewall:hover svg { transform: translateX(3px); }

.mega-link {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-3);
  border-radius: var(--radius-sm);
  transition: background-color var(--dur-fast) var(--ease-hover);
}
.mega-link:hover { background: var(--bg-alt); }
.mega-link .icon-chip {
  flex: none;
  width: 40px; height: 40px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: var(--c-black);
  color: var(--c-yellow);
}
.mega-link .icon-chip svg { width: 20px; height: 20px; }
.mega-link strong { display: block; font-size: 0.9375rem; font-weight: 700; }
.mega-link span { display: block; font-size: 0.8125rem; color: var(--text-muted) !important; margin-top: 2px; }

/* ---- Header right side ---- */
.header-actions { display: flex; align-items: center; gap: var(--sp-4); }
.header-actions .btn-primary.btn-sm { display: none; }
@media (min-width: 560px) { .header-actions .btn-primary.btn-sm { display: inline-flex; } }
.header-phone {
  display: none;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.9375rem;
}
@media (min-width: 1180px) { .header-phone { display: flex; } }
.header-phone svg { width: 18px; height: 18px; color: var(--c-black); }

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: var(--c-black);
  color: var(--c-white);
  border: none;
}
@media (min-width: 980px) { .menu-toggle { display: none; } }
.menu-toggle svg { width: 20px; height: 20px; }

/* =========================================================
   Mobile menu
   ========================================================= */
.mobile-menu-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.55);
  z-index: 150;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-base) var(--ease-out), visibility var(--dur-base);
}
.mobile-menu-backdrop.is-open { opacity: 1; visibility: visible; }

.mobile-menu {
  position: fixed;
  top: 0; right: 0;
  height: 100%;
  width: min(360px, 86vw);
  background: var(--c-white);
  z-index: 151;
  transform: translateX(100%);
  transition: transform var(--dur-base) var(--ease-out);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}
.mobile-menu.is-open { transform: translateX(0); }

.mobile-menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-soft);
}
.mobile-menu-head img { height: 26px; }
.mobile-menu-close {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-alt);
  border: none;
  display: flex; align-items: center; justify-content: center;
}
.mobile-menu-close svg { width: 18px; height: 18px; }

.mobile-nav { padding: var(--sp-4) var(--sp-2); }
.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.95rem 1rem;
  font-weight: 700;
  font-size: 1.0625rem;
  border-radius: var(--radius-sm);
}
.mobile-nav-link:hover { background: var(--bg-alt); }
.mobile-nav-link svg { width: 18px; height: 18px; transition: transform var(--dur-base) var(--ease-hover); }
.mobile-nav-link[aria-expanded="true"] svg { transform: rotate(180deg); }

/* Every submenu gets its own explicit mobile width/padding — no inheritance assumptions. */
.mobile-submenu {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-base) var(--ease-out);
  width: 100%;
  padding-inline: 0.5rem;
}
.mobile-submenu.is-open { grid-template-rows: 1fr; }
.mobile-submenu-inner { overflow: hidden; }
.mobile-submenu .mega-link { width: 100%; box-sizing: border-box; padding: 0.85rem 1rem; }

.mobile-menu-foot {
  margin-top: auto;
  padding: var(--sp-6);
  border-top: 1px solid var(--border-soft);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.mobile-menu-foot .header-phone { display: flex; }

body.mobile-menu-open { overflow: hidden; }


/* Header CTA button vs phone number vertical alignment.
   .btn-sm still had 11px of vertical padding — noticeably taller
   than the plain-text phone link next to it in the same flex row,
   even though both were centered. Tightened specifically for this
   header context; .btn-sm elsewhere on the site is untouched. */
.header-actions .btn-primary.btn-sm {
  padding: 0.6rem 1.5rem;
  line-height: 1.2;
}
.header-actions { flex-wrap: nowrap; }