/* Custom Styles for Dr. Epstein Allergy Website */

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Base Typography */
body {
    font-family: 'DM Sans', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, .font-serif {
    font-family: 'Playfair Display', serif;
}

/* Scroll Reveal Animation Classes */
.reveal-on-scroll {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal-hidden {
    opacity: 0;
    transform: translateY(30px);
}

/* Hero Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

/* Navbar Glass Effect */
.nav-scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* Mobile Menu Transitions */
#mobile-menu {
    transition: max-height 0.3s ease-in-out, opacity 0.3s ease-in-out;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
}

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

/* Focus States for Accessibility */
a:focus-visible, button:focus-visible {
    outline: 2px solid #0d9488;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Reduced Motion Preference */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    .reveal-on-scroll, .reveal-hidden {
        opacity: 1;
        transform: none;
        transition: none;
    }
    
    .animate-fade-in-up {
        animation: none;
    }
    
    .animate-bounce {
        animation: none;
    }
}