/* ===== Base & Utilities ===== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
}

::selection {
  background: #d4a853;
  color: #0c1424;
}

/* ===== Scroll Reveal (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
}

/* ===== Navbar ===== */
#nav {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(26, 39, 68, 0.06);
}

#nav.scrolled {
  box-shadow: 0 1px 20px rgba(12, 20, 36, 0.06);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: #d4a853;
  transition: width 0.3s ease;
}

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

/* ===== Mobile Menu ===== */
#mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

#mobile-menu.closed {
  opacity: 0;
  pointer-events: none;
}

#mobile-line-1.open {
  transform: translateY(5px) rotate(45deg);
}

#mobile-line-2.open {
  opacity: 0;
  transform: scaleX(0);
}

/* ===== Service Cards ===== */
.service-card {
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #d4a853, transparent);
  opacity: 0;
  transition: opacity 0.5s ease;
}

.service-card:hover::before {
  opacity: 1;
}

/* ===== Gallery ===== */
.gallery-item {
  position: relative;
  cursor: pointer;
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(12, 20, 36, 0);
  transition: background 0.4s ease;
  pointer-events: none;
}

.gallery-item:hover::after {
  background: rgba(12, 20, 36, 0.15);
}

/* ===== Form ===== */
select option {
  background: #fff;
  color: #121d33;
}

/* ===== Custom scrollbar ===== */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: #f5f5f5;
}

::-webkit-scrollbar-thumb {
  background: #d4a853;
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: #b08020;
}

/* ===== Mobile adjustments ===== */
@media (max-width: 767px) {
  .mobile-link {
    font-size: 1.75rem;
  }
}

/* ===== Print ===== */
@media print {
  #nav, #mobile-menu, .reveal {
    display: none !important;
  }
  body {
    color: #000;
    background: #fff;
  }
}