/* Custom styles for Posenau Dental */

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

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #040B16;
}
::-webkit-scrollbar-thumb {
    background: #132D52;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #1a3a5c;
}

/* Selection color */
::selection {
    background: rgba(74, 211, 171, 0.3);
    color: #fff;
}

/* Navbar scroll state */
.navbar-scrolled {
    background: rgba(4, 11, 22, 0.92) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(212, 175, 97, 0.08);
    box-shadow: 0 4px 40px rgba(0, 0, 0, 0.3);
}

/* Service card hover glow */
.service-card {
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(212, 175, 97, 0.3), transparent);
    opacity: 0;
    transition: opacity 0.5s ease;
}
.service-card:hover::before {
    opacity: 1;
}

/* Gold gradient text animation */
@keyframes shimmer {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Mobile menu transitions */
.mobile-menu-open {
    opacity: 1 !important;
    pointer-events: all !important;
}

.menu-line {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#menuBtn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}
#menuBtn.active .menu-line:nth-child(2) {
    opacity: 0;
}
#menuBtn.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
    width: 1.4rem;
}

/* Mobile links */
.mobile-link {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.mobile-menu-open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

.mobile-menu-open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
.mobile-menu-open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
.mobile-menu-open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
.mobile-menu-open .mobile-link:nth-child(4) { transition-delay: 0.2s; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    .service-card {
        transition: none;
    }
    .service-card:hover {
        transform: none;
    }
}

/* Focus styles */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #4AD3AB;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Image loading placeholder */
img {
    background: linear-gradient(135deg, #0A1A30 0%, #071324 100%);
}