/*
 * Navigation Styles
 * Fixed transparent header with glassmorphism effect
 * Becomes solid on scroll
 */

/* ===================================
   SITE HEADER
   ================================= */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: var(--z-fixed);
  transition: all var(--transition-base);
}

/* Background layer - animated on scroll */
.site-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(var(--blur-md));
  -webkit-backdrop-filter: blur(var(--blur-md));
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: -1;
}

/* Desktop: translucent background */
@media (min-width: 1024px) {
  .site-header::before {
    opacity: 0.35;
  }
}

/* Scrolled state */
.site-header.scrolled::before {
  opacity: 1;
}

/* ===================================
   HEADER CONTAINER
   ================================= */

.header-container {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

@media (min-width: 1024px) {
  .header-container {
    justify-content: space-between;
  }
}

/* ===================================
   LOGO
   ================================= */

.site-logo {
  display: none;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  z-index: var(--z-20);
}

/* Show logo on desktop only */
@media (min-width: 1024px) {
  .site-logo {
    display: flex;
  }
}

.site-logo img {
  height: 60px;
  width: auto;
  transition: transform var(--transition-base);
}

.site-logo:hover img {
  transform: scale(1.05);
}

/* ===================================
   NAVIGATION - Desktop
   ================================= */

.main-nav {
  display: none;
}

@media (min-width: 1024px) {
  .main-nav {
    display: flex;
  }
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  position: relative;
  font-size: var(--text-lg);
  font-family: var(--font-accent);
  font-weight: var(--font-normal);
  color: var(--color-gray-700);
  text-decoration: none;
  padding: var(--space-2) var(--space-2);
  transition: color var(--transition-fast);
  white-space: nowrap;
  display: flex;
  align-items: center;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: var(--space-2);
  right: var(--space-2);
  height: 2px;
  background: var(--gradient-teal-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.nav-link:hover {
  color: var(--color-teal-600);
  text-decoration: none;
}

.nav-link:hover::after {
  transform: scaleX(1);
}

/* Active/current page */
.nav-link.active {
  color: var(--color-teal-600);
  font-weight: var(--font-semibold);
}

.nav-link.active::after {
  transform: scaleX(1);
}

/* ===================================
   CTA BUTTON IN NAV
   ================================= */

.nav-cta {
  margin-left: var(--space-4);
}

.nav-cta .btn {
  padding: var(--space-3) var(--space-6);
  background: var(--color-gold-500);
  color: var(--color-white);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-gold);
}

.nav-cta .btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold-lg);
}

/* ===================================
   MOBILE MENU TOGGLE
   ================================= */

.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  z-index: var(--z-50);
  position: relative;
}

@media (min-width: 1024px) {
  .mobile-menu-toggle {
    display: none;
  }
}

/* Hamburger icon */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 28px;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--color-teal-600);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

/* Animated hamburger to X */
.mobile-menu-toggle[aria-expanded="true"] .hamburger span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* ===================================
   MOBILE NAVIGATION
   ================================= */

.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 320px;
  background: var(--color-white);
  box-shadow: var(--shadow-2xl);
  padding: var(--space-20) var(--space-6) var(--space-8);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  z-index: var(--z-40);
  overflow-y: auto;
}

.mobile-nav.active {
  transform: translateX(0);
}

@media (min-width: 1024px) {
  .mobile-nav {
    display: none;
  }
}

/* Mobile navigation list */
.mobile-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-nav-list li {
  margin-bottom: var(--space-2);
}

.mobile-nav-link {
  display: block;
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  color: var(--color-gray-700);
  text-decoration: none;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background-color: var(--color-teal-50);
  color: var(--color-teal-700);
}

/* Mobile CTA */
.mobile-nav-cta {
  margin-top: var(--space-8);
}

.mobile-nav-cta .btn {
  display: block;
  width: 100%;
  padding: var(--space-4);
  background: var(--gradient-teal-accent);
  color: var(--color-white);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-md);
  text-align: center;
  text-decoration: none;
  transition: all var(--transition-base);
}

.mobile-nav-cta .btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-teal-lg);
}

/* ===================================
   MOBILE MENU OVERLAY
   ================================= */

.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(var(--blur-sm));
  -webkit-backdrop-filter: blur(var(--blur-sm));
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: var(--z-30);
}

.mobile-overlay.active {
  opacity: 1;
  visibility: visible;
}

@media (min-width: 1024px) {
  .mobile-overlay {
    display: none;
  }
}

/* ===================================
   FOOTER
   ================================= */

.site-footer {
  background: var(--color-gray-900);
  color: var(--color-gray-300);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--section-padding-y);
}

.footer-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.footer-grid {
  display: grid;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-brand {
  grid-column: 1 / -1;
}

@media (min-width: 1024px) {
  .footer-brand {
    grid-column: auto;
  }
}

.footer-logo img {
  height: 80px;
  width: auto;
  margin-bottom: var(--space-4);
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.footer-description {
  color: var(--color-gray-400);
  margin-bottom: var(--space-6);
  max-width: 350px;
}

.footer-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-link {
  color: var(--color-gray-400);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-teal-400);
}

.footer-bottom {
  border-top: 1px solid var(--color-gray-800);
  padding-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  justify-content: space-between;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    text-align: left;
  }
}

.footer-copyright {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.footer-social {
  display: flex;
  gap: var(--space-4);
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--color-gray-800);
  color: var(--color-gray-400);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.footer-social-link:hover {
  background-color: var(--color-teal-600);
  color: var(--color-white);
  transform: translateY(-2px);
}