/* Base & Typography */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.font-display {
    font-family: 'Playfair Display', Georgia, serif;
}

/* Navbar scroll state */
.nav-scrolled #navbar {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(10, 26, 48, 0.08);
}

.nav-scrolled .nav-brand-text {
    color: #0a1a30;
}

/* Mobile menu transitions */
#mobile-menu {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll reveal animations (progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s ease-out, transform 0.7s 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; }
}

/* Form focus styles */
input:focus,
select:focus,
textarea:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.15);
}

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

::-webkit-scrollbar-track {
    background: #f0f4f8;
}

::-webkit-scrollbar-thumb {
    background: #a8b8cc;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #7c94b2;
}

/* Selection color */
::selection {
    background: rgba(78, 205, 196, 0.3);
    color: #0a1a30;
}

/* Button ripple effect */
button, a {
    -webkit-tap-highlight-color: transparent;
}

/* Print styles */
@media print {
    nav, #contact-form, .reveal {
        display: none !important;
    }
    
    body {
        color: #000;
        background: #fff;
    }
}