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

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

body {
    overflow-x: hidden;
}

/* Scroll Reveal Animations - Progressive Enhancement */
@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        opacity: 1;
        transform: none;
        transition: opacity 0.8s ease, transform 0.8s ease;
    }
    
    .reveal-left {
        opacity: 1;
        transform: none;
        transition: opacity 0.8s ease, transform 0.8s ease;
    }
    
    .reveal-right {
        opacity: 1;
        transform: none;
        transition: opacity 0.8s ease, transform 0.8s ease;
    }
}

/* JS-applied reveal states (progressive enhancement) */
.js-enabled .reveal-up {
    opacity: 0;
    transform: translateY(30px);
}

.js-enabled .reveal-left {
    opacity: 0;
    transform: translateX(-30px);
}

.js-enabled .reveal-right {
    opacity: 0;
    transform: translateX(30px);
}

.js-enabled .reveal-up.revealed,
.js-enabled .reveal-left.revealed,
.js-enabled .reveal-right.revealed {
    opacity: 1;
    transform: none;
}

/* Navbar scroll state */
.nav-scrolled {
    background: rgba(10, 26, 46, 0.95) !important;
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-scrolled .nav-logo-text,
.nav-scrolled .nav-link-text {
    color: #ffffff !important;
}

/* Mobile menu transitions */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.4s ease;
    opacity: 0;
}

#mobile-menu.open {
    max-height: 400px;
    opacity: 1;
}

/* Selection color */
::selection {
    background: #d4a017;
    color: #102a43;
}

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

::-webkit-scrollbar-track {
    background: #102a43;
}

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

::-webkit-scrollbar-thumb:hover {
    background: #e2b03f;
}

/* Focus styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid #d4a017;
    outline-offset: 2px;
}

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

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