*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }

::selection {
    background-color: rgba(180, 90, 110, 0.25);
    color: #301115;
}

/* Header transitions */
#site-header.scrolled #header-overlay {
    opacity: 1;
    background: linear-gradient(to bottom, rgba(48, 17, 21, 0.95), rgba(48, 17, 21, 0.85));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

#site-header.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

#mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
}

.mobile-nav-link {
    position: relative;
}

.mobile-nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #D97706, #FCD34D);
    transition: width 0.3s ease;
    border-radius: 1px;
}

.mobile-nav-link:hover::after {
    width: 60%;
}

/* Nav links underline animation */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 1.5px;
    background: linear-gradient(90deg, #D97706, #FCD34D);
    transition: width 0.3s ease;
    border-radius: 1px;
}

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

/* Reveal animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal.revealed-delay-1 { transition-delay: 0.1s; }
.reveal.revealed-delay-2 { transition-delay: 0.2s; }
.reveal.revealed-delay-3 { transition-delay: 0.3s; }

/* Preloader */
#preloader {
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

#preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

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

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #301115;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #78350F, #92400E);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #92400E, #B45309);
}

/* Focus styles */
a:focus-visible, button:focus-visible {
    outline: 2px solid #FCD34D;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Smooth image loading */
img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* Subtle parallax for hero */
#hero img {
    will-change: transform;
}

/* Card hover effects */
.group:hover .group-hover\\:scale-110 {
    transform: scale(1.1);
}

/* Decorative line animation */
@keyframes drawLine {
    from { width: 0; }
    to { width: 2rem; }
}

/* Shimmer effect for special elements */
.shimmer-text {
    background: linear-gradient(90deg, #D97706 0%, #FCD34D 50%, #D97706 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s ease-in-out infinite;
}

/* Glass morphism utility */
.glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive adjustments */
@media (max-width: 767px) {
    .reveal {
        transform: translateY(24px);
    }
}