/* Base styles and custom utilities */
html {
    scroll-behavior: smooth;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scroll reveal animations — progressive enhancement only */
@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }
    
    .scroll-reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    
    .fade-in {
        opacity: 0;
        animation: fadeInUp 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    }
    
    .fade-in:nth-child(2) { animation-delay: 0.15s; }
    .fade-in:nth-child(3) { animation-delay: 0.3s; }
    .fade-in:nth-child(4) { animation-delay: 0.45s; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Gold shimmer effect for decorative elements */
.shimmer-line {
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.4), transparent);
    background-size: 200% 100%;
    animation: shimmerMove 3s ease-in-out infinite;
}

@keyframes shimmerMove {
    0%, 100% { background-position: -200% 0; }
    50% { background-position: 200% 0; }
}

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

::-webkit-scrollbar-track {
    background: #020807;
}

::-webkit-scrollbar-thumb {
    background: rgba(212, 175, 55, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(212, 175, 55, 0.5);
}

/* Selection color */
::selection {
    background: rgba(212, 175, 55, 0.3);
    color: #fefdf8;
}

/* Mobile menu transitions */
#mobile-menu {
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

#mobile-menu.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

#mobile-menu.close {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* Menu button animation */
.menu-line {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

#menu-btn.active .menu-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

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

#menu-btn.active .menu-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
    width: 1.25rem;
}

/* Navbar scroll state */
#navbar.scrolled {
    background: rgba(2, 8, 7, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

/* Subtle gradient text utility */
.text-gradient-gold {
    background: linear-gradient(135deg, #f5e6c4, #e2b76a, #f5e6c4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Image lazy load fallback */
img {
    max-width: 100%;
    height: auto;
}

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

/* Smooth image loading */
img {
    transition: opacity 0.3s ease;
}

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

img.loaded {
    opacity: 1;
}