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

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

body {
  overflow-x: hidden;
}

/* Marquee Animation */
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.animate-marquee {
  animation: marquee 20s linear infinite;
}

/* Scroll Reveal (progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .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; }
  .reveal-delay-4 { transition-delay: 0.4s; }
}

/* Navbar scroll state */
.navbar-scrolled {
  background: rgba(10, 22, 40, 0.95) !important;
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

::-webkit-scrollbar-track {
  background: #0a1628;
}

::-webkit-scrollbar-thumb {
  background: #1f4786;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #d4a017;
}

/* Selection */
::selection {
  background: rgba(212, 160, 23, 0.3);
  color: #f0c040;
}

/* Form focus styles */
input:focus, textarea:focus {
  outline: none;
}

/* Image loading placeholder */
img {
  background: linear-gradient(135deg, #0f2140 0%, #152d56 100%);
}

/* Mobile menu transition */
#mobile-menu {
  animation: slideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Smooth image hover */
.rounded-2xl.overflow-hidden img {
  will-change: transform;
}

/* Gold gradient text utility */
.text-gold-gradient {
  background: linear-gradient(135deg, #e0b030 0%, #d4a017 50%, #f0c040 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}