/* ─── Base & Reset ─── */
*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  overflow-x: hidden;
}

::selection {
  background: rgba(201, 168, 76, 0.3);
  color: #f1f5f9;
}

img {
  display: block;
  max-width: 100%;
}

/* ─── Scroll Reveal (progressive enhancement) ─── */
@media (prefers-reduced-motion: no-preference) {
  .reveal-up,
  .reveal-left,
  .reveal-right {
    opacity: 0;
    transition: opacity 0.7s ease, transform 0.7s ease;
  }

  .reveal-up {
    transform: translateY(32px);
  }

  .reveal-left {
    transform: translateX(-32px);
  }

  .reveal-right {
    transform: translateX(32px);
  }

  .reveal-up.revealed,
  .reveal-left.revealed,
  .reveal-right.revealed {
    opacity: 1;
    transform: translate(0, 0);
  }
}

/* ─── Navbar ─── */
#navbar {
  background: rgba(8, 15, 26, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

#navbar.scrolled {
  background: rgba(8, 15, 26, 0.95);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: #d4af62;
  transition: width 0.3s ease;
}

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

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

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

#mobile-menu.open #bar1 {
  transform: rotate(45deg) translate(4px, 4px);
}

#mobile-menu.open #bar2 {
  opacity: 0;
}

#mobile-menu.open #bar3 {
  transform: rotate(-45deg) translate(4px, -4px);
  width: 1.5rem;
}

/* ─── Gold shimmer on decorative elements ─── */
@keyframes shimmer {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

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

::-webkit-scrollbar-track {
  background: #080f1a;
}

::-webkit-scrollbar-thumb {
  background: #1e2d3d;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #2d4a5c;
}

/* ─── Focus styles ─── */
a:focus-visible,
button:focus-visible {
  outline: 2px solid #d4af62;
  outline-offset: 2px;
  border-radius: 4px;
}