/* ============================================================
   UVEOUS TECH — Navigation Styles
   ============================================================ */

/* ── Sticky Navbar ── */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: box-shadow var(--transition-base);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
}
.site-nav.scrolled {
  box-shadow: 0 1.6px 3.6px 0 rgba(0,0,0,.13), 0 0.3px 0.9px 0 rgba(0,0,0,.11);
}
.site-nav.light {
  /* No longer needed but kept for structural backwards compatibility */
}

/* ── Dark-Hero transparent nav (used on homepage) ── */
.site-nav.dark-hero {
  background: transparent;
  border-bottom-color: transparent;
  transition: background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}
.site-nav.dark-hero.scrolled {
  background: var(--color-white);
  border-bottom-color: var(--color-gray-200);
}
.site-nav.dark-hero:not(.scrolled) .nav-link {
  color: rgba(255,255,255,.85);
}
.site-nav.dark-hero:not(.scrolled) .nav-link:hover {
  color: var(--color-white);
  background: rgba(255,255,255,.1);
}
.site-nav.dark-hero:not(.scrolled) .nav-phone {
  color: rgba(255,255,255,.75);
}
.site-nav.dark-hero:not(.scrolled) .nav-phone:hover {
  color: var(--color-white);
}
.site-nav.dark-hero:not(.scrolled) .nav-toggle span {
  background: rgba(255,255,255,.88);
}
.site-nav.dark-hero:not(.scrolled) .nav-logo img {
  filter: brightness(0) invert(1);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-inline: var(--space-6);
}

/* ── Logo ── */
.nav-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.nav-logo img { height: 36px; width: auto; }

/* ── Nav Links ── */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex: 1;
}

.nav-item { position: relative; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: .5rem .875rem;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--fw-medium);
  color: var(--color-gray-800);
  border-radius: 2px;
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
  background: var(--color-gray-50);
}
.site-nav.light .nav-link { color: var(--color-gray-800); }
.site-nav.light .nav-link:hover { color: var(--color-primary); background: var(--color-gray-50); }

.nav-link svg { transition: transform var(--transition-fast); }
.nav-item:hover > .nav-link svg { transform: rotate(180deg); }

/* ── Mega Menu ── */
.mega-menu {
  position: fixed;
  top: var(--nav-height);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 40px rgba(0,0,0,.14), 0 2px 8px rgba(0,0,0,.08);
  border: 1px solid var(--color-gray-200);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  z-index: var(--z-overlay);
  width: 620px;
  max-width: calc(100vw - 2rem);
  padding: var(--space-6);
}
.mega-menu.wide {
  width: 820px;
  max-width: calc(100vw - 2rem);
}
.mega-menu.narrow {
  width: 240px;
  max-width: calc(100vw - 2rem);
}

/* Mega menu open state — driven by JS (.is-open), not CSS :hover */
.nav-item .mega-menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.mega-columns { display: grid; gap: var(--space-6); }
.mega-columns-3 { grid-template-columns: repeat(3, 1fr); }
.mega-columns-2 { grid-template-columns: repeat(2, 1fr); }

.mega-col-title {
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-primary);
}

.mega-link {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: .6rem .75rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  color: var(--color-gray-700);
}
.mega-link:hover {
  background: var(--color-gray-50);
  color: var(--color-primary);
}
.mega-link-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
  background: var(--color-gray-100);
}
.mega-link:hover .mega-link-icon { background: rgba(27,79,158,.1); }
.mega-link-text strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-gray-900);
  margin-bottom: 2px;
}
.mega-link-text span {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

.simple-menu {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.simple-menu a {
  display: block;
  padding: .5rem .75rem;
  font-size: var(--text-sm);
  color: var(--color-gray-700);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.simple-menu a:hover { background: var(--color-gray-50); color: var(--color-primary); }

/* ── Nav Right ── */
.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}
.nav-phone {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-gray-800);
  transition: color var(--transition-fast);
}
.nav-phone:hover { color: var(--color-primary); }
.site-nav.light .nav-phone { color: var(--color-gray-800); }
.site-nav.light .nav-phone:hover { color: var(--color-primary); }

/* ── Mobile Toggle ── */
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  z-index: calc(var(--z-sticky) + 10);
}
.nav-toggle:hover { background: rgba(255,255,255,.1); }
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-gray-800);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast), width var(--transition-base);
}
.site-nav.light .nav-toggle span { background: var(--color-gray-800); }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; width: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile Drawer ── */
.nav-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(340px, 90vw);
  height: 100vh;
  background: var(--color-dark);
  border-left: 1px solid rgba(255,255,255,.1);
  z-index: calc(var(--z-sticky) - 1);
  overflow-y: auto;
  transition: right var(--transition-slow);
  padding: calc(var(--nav-height) + 1rem) var(--space-6) var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.nav-drawer.open { right: 0; }

.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: calc(var(--z-sticky) - 2);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}
.drawer-overlay.open { opacity: 1; visibility: visible; }

.drawer-section-title {
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}
.drawer-link {
  display: block;
  padding: .625rem 0;
  font-size: var(--text-sm);
  font-weight: var(--fw-medium);
  color: rgba(255,255,255,.8);
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: color var(--transition-fast);
}
.drawer-link:hover { color: var(--color-white); }

/* ── Footer ── */
.site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,.7);
  padding-top: var(--space-20);
  padding-bottom: var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer-brand .footer-logo { height: 32px; width: auto; margin-bottom: var(--space-4); filter: brightness(0) invert(1) opacity(.9); }
.footer-brand p { font-size: var(--text-sm); line-height: var(--lh-relaxed); margin-bottom: var(--space-6); }

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  margin-bottom: var(--space-3);
}
.footer-contact-item a:hover { color: var(--color-white); }

.footer-col-title {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  margin-bottom: var(--space-5);
  text-transform: uppercase;
  letter-spacing: .06em;
}

.footer-links { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-links a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.6);
  transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--color-white); }

.footer-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: #25D366;
  color: white;
  padding: .625rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  margin-top: var(--space-3);
  transition: background var(--transition-fast);
}
.footer-whatsapp:hover { background: #20bd5a; }

.footer-social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-5);
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.7);
  font-size: 1rem;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.footer-social a:hover { background: var(--color-primary); color: white; }

.footer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: var(--text-xs);
  color: rgba(255,255,255,.4);
}
.footer-bar a { color: rgba(255,255,255,.5); transition: color var(--transition-fast); }
.footer-bar a:hover { color: var(--color-white); }
.footer-bar-links { display: flex; gap: var(--space-5); }

/* ── Floating WhatsApp Button ── */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.625rem;
  z-index: var(--z-modal);
  box-shadow: 0 8px 28px rgba(37,211,102,.45);
  transition: transform var(--transition-spring), box-shadow var(--transition-base);
  animation: pulse-ring 3s ease-in-out infinite;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 40px rgba(37,211,102,.55);
}

/* ── Scroll to Top ── */
.scroll-top {
  position: fixed;
  bottom: 100px;
  right: 28px;
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  box-shadow: var(--shadow-blue);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}
.scroll-top.visible { opacity: 1; visibility: visible; }
.scroll-top:hover { background: var(--color-primary-dark); transform: translateY(-3px); }

/* ── Mobile Responsive ── */
@media (max-width: 1024px) {
  .nav-links, .nav-phone { display: none; }
  .nav-toggle { display: flex; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .mega-menu { display: none; }
}
@media (max-width: 640px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bar { flex-direction: column; text-align: center; }
}