/* Custom styles for Precision Denture */

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

/* Navigation transitions */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #f59e0b;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Mobile nav links */
.mobile-nav-link {
    position: relative;
    padding-left: 0;
}

/* Scroll reveal animations - progressive enhancement only */
.reveal {
    /* Default state: visible for accessibility */
    opacity: 1;
    transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        /* Hidden state for animation - JS will add visible class */
        opacity: 0;
        transform: translateY(24px);
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navbar scroll state */
.navbar-scrolled {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(88, 28, 135, 0.08);
}

.navbar-scrolled .nav-text {
    color: #581c87 !important;
}

.navbar-scrolled .nav-link {
    color: #581c87 !important;
}

/* Hero gradient text effect */
.hero-gradient-text {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

::-webkit-scrollbar-track {
    background: #faf5ff;
}

::-webkit-scrollbar-thumb {
    background: #d8b4fe;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a855f7;
}

/* Form focus styles */
input:focus,
select:focus,
textarea:focus {
    box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.1);
}

/* Card hover lift effect */
.group:hover {
    transform: translateY(-4px);
}

/* Mobile menu animation */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.3s ease;
    opacity: 0;
}

#mobile-menu.open {
    max-height: 500px;
    opacity: 1;
}

/* Back to top button */
#back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

/* Print styles */
@media print {
    nav, #back-to-top, .reveal {
        display: none !important;
    }
}