/* Base & Typography */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

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

::-webkit-scrollbar-track {
    background: #0d0b0b;
}

::-webkit-scrollbar-thumb {
    background: #2d2525;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #d4af37;
}

/* Selection */
::selection {
    background: rgba(212, 175, 55, 0.3);
    color: #f5d5d5;
}

/* Service cards - progressive enhancement for scroll reveal */
@media (prefers-reduced-motion: no-preference) {
    .service-card {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.6s ease, transform 0.6s ease, border-color 0.5s ease, background 0.5s ease;
    }
}

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

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

/* Mobile menu animation */
.mobile-link {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#mobileMenu.menu-open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobileMenu.menu-open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobileMenu.menu-open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobileMenu.menu-open .mobile-link:nth-child(4) { transition-delay: 0.25s; }

/* Navbar scroll state */
.nav-scrolled {
    background: rgba(7, 6, 6, 0.95) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

.nav-scrolled #navbar .menu-line {
    background: #d4af37 !important;
}

/* Form select arrow */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23d4af37' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

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

/* Focus visible for keyboard navigation */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid #d4af37;
    outline-offset: 2px;
}

/* Image aspect ratios to prevent layout shift */
img {
    max-width: 100%;
    height: auto;
}