/* ============================================================
   STRATALIS GROUP, Navigation & Footer Styles
   ============================================================ */

/* ---- Site Nav ---- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: var(--z-nav);
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color var(--trans-base), box-shadow var(--trans-base);
}

.site-nav.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  height: var(--nav-height);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-8);
  gap: var(--space-6);
}

/* Hamburger */
.nav-hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 4px;
  cursor: pointer;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  transition: background var(--trans-fast);
}
.nav-hamburger:hover { background: var(--grey-50); }

.ham-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--charcoal-dark);
  border-radius: 2px;
  transition: transform var(--trans-base), opacity var(--trans-base), width var(--trans-base);
}
.nav-hamburger.open .ham-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open .ham-bar:nth-child(2) { opacity: 0; width: 0; }
.nav-hamburger.open .ham-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Logo in nav */
.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}
.nav-logo svg { height: 36px; width: auto; }

/* Desktop quick links (hidden on mobile) */
.nav-desktop-links {
  display: flex;
  gap: var(--space-6);
  margin-left: auto;
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--charcoal-dark);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: var(--space-2) 0;
  border-bottom: 2px solid transparent;
  transition: color var(--trans-fast), border-color var(--trans-fast);
}
.nav-link:hover { color: var(--red); border-bottom-color: var(--red); }

/* Nav actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

/* ---- Services Dropdown (desktop only) ---- */
.nav-item-has-dropdown {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  left: -20px;
  min-width: 500px;
  background: var(--white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(30,30,30,0.13), 0 2px 8px rgba(30,30,30,0.07);
  padding: var(--space-6);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 0.18s ease, transform 0.18s ease;
  z-index: calc(var(--z-nav) + 10);
}

.nav-dropdown.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* Small bridge between link and dropdown so mouse doesn't slip out */
.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -14px;
  left: 0;
  right: 0;
  height: 14px;
}

.nav-dropdown-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.nav-dropdown-col {
  padding: 0 var(--space-5);
}

.nav-dropdown-col:first-child {
  padding-left: 0;
  border-right: 1px solid var(--color-border);
}

.nav-dropdown-col:last-child {
  padding-right: 0;
}

.nav-dropdown-col-label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--red);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
}

.nav-dropdown-link {
  display: block;
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--charcoal-dark);
  text-decoration: none;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  transition: background var(--trans-fast), color var(--trans-fast), padding-left var(--trans-fast);
  margin-bottom: 2px;
}

.nav-dropdown-link:hover {
  background: var(--grey-50);
  color: var(--red);
  padding-left: var(--space-4);
}

@media (max-width: 1024px) {
  .nav-desktop-links { display: none; }
  .nav-dropdown { display: none; }
}
@media (max-width: 640px) {
  .nav-actions .nav-link { display: none; }
}

/* ---- Mega Menu ---- */
.mega-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(64,64,64,0.4);
  z-index: calc(var(--z-nav) - 1);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--trans-base);
}
.mega-backdrop.open {
  opacity: 1;
  pointer-events: all;
}

.mega-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: min(520px, 100vw);
  height: 100vh;
  background: var(--white);
  z-index: var(--z-modal);
  transform: translateX(-100%);
  transition: transform var(--trans-slow) var(--ease-out);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}
.mega-menu-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}
.mega-menu.open { transform: translateX(0); }

.mega-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-8);
  height: var(--nav-height);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.mega-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--charcoal);
  transition: background var(--trans-fast), color var(--trans-fast);
}
.mega-close:hover { background: var(--grey-50); color: var(--red); }

.mega-grid {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  flex: 1;
  overflow-y: auto; /* scroll nav content; footer stays pinned below */
}

.mega-section { }

.mega-section-label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--red);
  margin-bottom: var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}

.mega-col + .mega-col { margin-top: var(--space-3); }

.mega-col-heading {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--charcoal);
  margin-bottom: var(--space-3);
}

.mega-link-list { display: flex; flex-direction: column; gap: var(--space-1); }

.mega-link {
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--charcoal-dark);
  text-decoration: none;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  transition: background var(--trans-fast), color var(--trans-fast), padding-left var(--trans-fast);
  display: block;
}
.mega-link:hover {
  background: var(--grey-50);
  color: var(--red);
  padding-left: var(--space-4);
}

.mega-footer {
  padding: var(--space-6) var(--space-8);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-shrink: 0;
  flex-wrap: wrap;
}

.mega-footer-links {
  display: flex;
  gap: var(--space-5);
}

.mega-footer-link {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--charcoal-dark);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: color var(--trans-fast);
}
.mega-footer-link:hover { color: var(--red); }

/* ---- Site Footer ---- */
.site-footer {
  background: var(--charcoal-dark);
  color: var(--grey-200);
  margin-top: auto;
}

.footer-top {
  padding: var(--space-16) 0 var(--space-12);
}

.footer-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-16);
}

.footer-logo svg { height: 40px; width: auto; }
/* Recolor logo in dark footer */
.site-footer .footer-logo svg text { fill: var(--grey-200); }
.site-footer .footer-logo svg path { stroke: var(--red); }

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--grey-300);
  margin-top: var(--space-4);
  max-width: 100%;
}

.footer-social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  color: var(--grey-300);
  background: rgba(255,255,255,0.06);
  transition: background var(--trans-fast), color var(--trans-fast);
}
.social-link:hover { background: var(--red); color: white; }

.footer-links-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.footer-col-title {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--grey-100);
  margin-bottom: var(--space-4);
}

.footer-col ul { display: flex; flex-direction: column; gap: var(--space-2); }

.footer-col a {
  font-size: var(--text-sm);
  color: var(--grey-300);
  text-decoration: none;
  transition: color var(--trans-fast);
}
.footer-col a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: var(--space-5) 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-copy {
  font-size: var(--text-xs);
  color: var(--grey-400);
  max-width: none;
}

.footer-legal {
  display: flex;
  gap: var(--space-5);
}

.footer-legal a {
  font-size: var(--text-xs);
  color: var(--grey-400);
  transition: color var(--trans-fast);
}
.footer-legal a:hover { color: var(--white); }

/* Footer responsive */
@media (max-width: 960px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
}

@media (max-width: 640px) {
  .footer-links-group {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ── Hamburger simple top-level links, match mega-section-label exactly ── */
.mega-simple-link {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--red);
  text-decoration: none;
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-1);
  transition: color 0.15s;
}
.mega-simple-link:hover {
  color: var(--red);
  opacity: 0.7;
}