/* Custom styles for Next Generation Dental Spa */

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

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

::-webkit-scrollbar-track {
    background: #1A1A1A;
}

::-webkit-scrollbar-thumb {
    background: #3A3A3A;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #D4A853;
}

/* Selection color */
::selection {
    background: rgba(212, 168, 83, 0.3);
    color: #ffffff;
}

/* Service cards hover effect */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(212, 168, 83, 0.03), transparent);
    transition: left 0.5s ease;
}

.service-card:hover::before {
    left: 100%;
}

/* Testimonial card hover */
.testimonial-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Gold shimmer animation */
@keyframes shimmer {
    0% {
        background-position: -200% center;
    }
    100% {
        background-position: 200% center;
    }
}

/* Floating animation for hero elements */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Pulse animation for gold dot */
@keyframes pulse-gold {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(212, 168, 83, 0.4);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(212, 168, 83, 0);
    }
}

/* Fade in animation for scroll reveals */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Mobile menu animations */
.menu-line {
    transition: all 0.3s ease;
}

#mobile-menu-btn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

#mobile-menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
}

#mobile-menu-btn.active .menu-line:nth-child(3) {
    width: 1.5rem;
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Navbar scroll state */
.navbar-scrolled {
    background: rgba(13, 13, 13, 0.95) !important;
    backdrop-filter: blur(20px) !important;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

#back-to-top:not(.visible) {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Gradient text utility */
.gradient-text {
    background: linear-gradient(135deg, #E8C97A, #D4A853, #B8860B);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Form focus states */
input:focus,
select:focus,
textarea:focus {
    outline: none;
}

/* Image loading placeholder */
img {
    opacity: 1;
    transition: opacity 0.3s ease;
}

img[loading="lazy"] {
    opacity: 0;
}

img.loaded {
    opacity: 1;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .font-serif {
        line-height: 1.2;
    }
}