/* Base styles and custom properties */
:root {
    --color-midnight-900: #0B1D3A;
    --color-mint-200: #A8E6CF;
    --color-mint-400: #52C19A;
    --color-mint-600: #1E8562;
}

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

body {
    overflow-x: hidden;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
    background: #A8E6CF;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #52C19A;
}

/* Selection color */
::selection {
    background: #A8E6CF;
    color: #0B1D3A;
}

/* Navbar scroll state */
.nav-scrolled .nav-logo-text {
    color: #0B1D3A;
}

.nav-scrolled .nav-link {
    color: rgba(11, 29, 58, 0.7);
}

/* Mobile menu animations */
.mobile-nav-link {
    opacity: 0;
    transform: translateY(10px);
}

.mobile-menu-open .mobile-nav-link {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

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

/* Hamburger animation */
.menu-active #bar1 {
    transform: rotate(45deg) translate(5px, 5px);
}
.menu-active #bar2 {
    opacity: 0;
}
.menu-active #bar3 {
    width: 6px;
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Reveal animations - progressive enhancement */
@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        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-left {
        opacity: 0;
        transform: translateX(-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-right {
        opacity: 0;
        transform: translateX(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-up.revealed,
    .reveal-left.revealed,
    .reveal-right.revealed {
        opacity: 1;
        transform: translate(0);
    }
}

/* Always visible for reduced motion preference or no-JS */
@media (prefers-reduced-motion: reduce) {
    .reveal-up,
    .reveal-left,
    .reveal-right {
        opacity: 1;
        transform: none;
    }
}

/* Print styles */
@media print {
    header, footer, .reveal-up, .reveal-left, .reveal-right {
        transition: none !important;
    }
    .reveal-up, .reveal-left, .reveal-right {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* Focus styles */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #A8E6CF;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Image loading placeholder */
img {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
}