/* Custom styles for Ha Lee DDS */

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

/* Navbar transition */
#navbar {
    transition: background-color 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
}

#navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.97);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(10px);
}

/* Mobile menu animation */
#mobileMenu {
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Service card hover */
.service-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.service-card:hover {
    transform: translateY(-4px);
}

/* Fade-in animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children */
.fade-in-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-stagger.visible > *:nth-child(1) { transition-delay: 0.1s; }
.fade-in-stagger.visible > *:nth-child(2) { transition-delay: 0.2s; }
.fade-in-stagger.visible > *:nth-child(3) { transition-delay: 0.3s; }
.fade-in-stagger.visible > *:nth-child(4) { transition-delay: 0.4s; }
.fade-in-stagger.visible > *:nth-child(5) { transition-delay: 0.5s; }
.fade-in-stagger.visible > *:nth-child(6) { transition-delay: 0.6s; }

.fade-in-stagger.visible > * {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile link hover */
.mobile-link {
    transition: padding-left 0.2s ease;
}

.mobile-link:hover {
    padding-left: 8px;
}

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

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

::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
}

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