/* ==========================================================================
   LAYOUT CSS — Header, Footer, Navigation, Grid Systems
   ========================================================================== */

body {
  padding-top: 76px;
  font-family: var(--font-body);
}

@media (min-width: 1024px) {
  body {
    padding-top: 92px;
  }
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 76px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-gold);
  z-index: 1000;
  transition: all 0.3s ease;
}

.header.scrolled {
  height: 68px;
  box-shadow: 0 4px 20px rgba(30, 27, 75, 0.08);
}

@media (min-width: 1024px) {
  .header {
    height: 92px;
  }
  .header.scrolled {
    height: 80px;
  }
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav-desktop {
  display: none;
}

@media (min-width: 1024px) {
  .nav-desktop {
    display: flex;
    gap: 36px;
    align-items: center;
  }
}

.nav-link {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--secondary);
  text-decoration: none;
  position: relative;
  padding: 6px 0;
  transition: color 0.3s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-light);
  transition: width 0.3s ease;
  border-radius: 2px;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-link:hover {
  color: var(--primary-light);
}

/* Header CTA */
.header-cta {
  display: none;
}

@media (min-width: 1024px) {
  .header-cta {
    display: inline-flex;
  }
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

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

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--secondary);
  transition: all 0.3s ease;
  border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu Overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-menu.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu .nav-link {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
}

/* Footer */
.footer {
  background-color: var(--secondary);
  color: white;
  padding: 80px 0 40px;
  border-top: 4px solid var(--primary-light);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-tagline {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.social-links {
  display: flex;
  gap: 14px;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(212, 175, 55, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: all 0.3s ease;
  text-decoration: none;
}

.social-link:hover {
  background-color: var(--primary-light);
  border-color: var(--primary-light);
  color: white;
}

.footer-col h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  margin-bottom: 20px;
  color: #F59E0B;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  transition: color 0.3s ease;
  font-size: 0.9375rem;
}

.footer-nav a:hover {
  color: white;
}

.footer-bottom {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
  text-align: center;
}

/* Grid System */
.grid {
  display: grid;
  gap: 28px;
}

.grid-2 { grid-template-columns: 1fr; }
@media (min-width: 768px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } }

.grid-3 { grid-template-columns: 1fr; }
@media (min-width: 768px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

.grid-4 { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 1024px) { .grid-4 { grid-template-columns: repeat(4, 1fr); } }

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
  }
}