/* Base & Utilities */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Custom selection color */
::selection {
  background-color: #D4A84B;
  color: #0D1B2A;
}

/* Navbar scroll state */
#navbar.scrolled {
  background-color: rgba(250, 250, 247, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(27, 42, 74, 0.08);
}

/* Mobile menu open state */
#mobile-menu.open {
  opacity: 1 !important;
  pointer-events: all !important;
}

/* Mobile menu links animation */
.mobile-link {
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease;
}

#mobile-menu.open .mobile-link {
  opacity: 1;
  transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

/* Hamburger animation */
#menu-toggle.active .menu-line:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}
#menu-toggle.active .menu-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
#menu-toggle.active .menu-line:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
  width: 1.5rem;
}

/* Service card stagger animation */
.service-card {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.service-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.service-card:nth-child(1) { transition-delay: 0.05s; }
.service-card:nth-child(2) { transition-delay: 0.1s; }
.service-card:nth-child(3) { transition-delay: 0.15s; }
.service-card:nth-child(4) { transition-delay: 0.2s; }
.service-card:nth-child(5) { transition-delay: 0.25s; }
.service-card:nth-child(6) { transition-delay: 0.3s; }

/* Gallery image hover */
.gallery-item {
  overflow: hidden;
  border-radius: 1rem;
}

.gallery-item img {
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

/* Fade-in animation for sections */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Testimonial card animation */
.testimonial-card {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.testimonial-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.testimonial-card:nth-child(1) { transition-delay: 0.05s; }
.testimonial-card:nth-child(2) { transition-delay: 0.1s; }
.testimonial-card:nth-child(3) { transition-delay: 0.15s; }

/* Form input focus styles */
input:focus,
textarea:focus,
select:focus {
  box-shadow: 0 0 0 4px rgba(212, 168, 75, 0.1);
}

/* Button ripple effect */
button, a {
  -webkit-tap-highlight-color: transparent;
}

/* Smooth image loading */
img {
  opacity: 1;
  transition: opacity 0.3s ease;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #FAFAF7;
}

::-webkit-scrollbar-thumb {
  background: #1B2A4A;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #2C3E6B;
}

/* Prefers reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .service-card,
  .fade-in,
  .testimonial-card {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .gallery-item img,
  img {
    transition: none;
  }
}