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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
}

/* Scroll Reveal Animations - Progressive Enhancement */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    }
    
    .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 */
.nav-scrolled {
    background: rgba(10, 22, 40, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.nav-scrolled .nav-logo-text {
    color: #fff !important;
}

.nav-scrolled .nav-link {
    color: rgba(255, 255, 255, 0.8) !important;
}

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

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

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

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

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

::-webkit-scrollbar-thumb {
    background: #d4af37;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #e5c16e;
}

/* Selection color */
::selection {
    background: #d4af37;
    color: #0a1628;
}

/* Focus styles */
a:focus-visible, button:focus-visible {
    outline: 2px solid #d4af37;
    outline-offset: 4px;
}

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

/* Image placeholder animation */
img[loading="lazy"] {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Subtle hover effects for cards */
.shadow-sm {
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.shadow-sm:hover {
    box-shadow: 0 10px 40px rgba(10, 22, 40, 0.1) !important;
    transform: translateY(-2px);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    html {
        font-size: 15px;
    }
}