*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

/* Navbar scroll effect */
nav.scrolled {
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

nav.scrolled .mobile-link,
nav.scrolled a:not(.bg-gold-400) {
    color: rgba(255, 255, 255, 0.85);
}

/* Geometric decorations */
.geo-shape {
    position: absolute;
    pointer-events: none;
}

/* Smooth section transitions */
section {
    position: relative;
}

/* Card hover effects */
.group:hover .group-hover\:scale-110 {
    transform: scale(1.1);
}

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

::-webkit-scrollbar-track {
    background: #0f2140;
}

::-webkit-scrollbar-thumb {
    background: #d4a017;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #e6b422;
}

/* Selection color */
::selection {
    background: #d4a017;
    color: #0a1628;
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

.animate-slide-up {
    animation: slideUp 0.8s ease-out forwards;
}

.animate-slide-in {
    animation: slideIn 0.6s ease-out forwards;
}

/* Intersection observer animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
    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; }

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

/* Button focus styles */
a:focus-visible, button:focus-visible {
    outline: 2px solid #d4a017;
    outline-offset: 2px;
    border-radius: 4px;
}

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

/* Responsive utilities */
@media (max-width: 768px) {
    html {
        scroll-padding-top: 70px;
    }
}

/* Print styles */
@media print {
    nav, .scroll-indicator {
        display: none;
    }
    body {
        color: #000;
        background: #fff;
    }
}