/* === Base & Utilities === */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(212, 168, 83, 0.3);
    color: #fff;
}

/* === Scrollbar === */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #020617;
}
::-webkit-scrollbar-thumb {
    background: #162d54;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #D4A853;
}

/* === Scroll Reveal Animations (progressive enhancement) === */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }
    .reveal-delay-6 { transition-delay: 0.6s; }
}

/* Fallback: content always visible if JS is disabled or prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* === Navbar transitions === */
#navbar.scrolled {
    background: rgba(2, 6, 23, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(212, 168, 83, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* === Mobile menu === */
#mobile-menu {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === Service card hover glow === */
.service-card:hover {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px rgba(212, 168, 83, 0.05);
}

/* === Gold shimmer on CTA buttons === */
button.bg-gold-500,
a.bg-gold-500 {
    position: relative;
    overflow: hidden;
}
button.bg-gold-500::after,
a.bg-gold-500::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.5s ease;
}
button.bg-gold-500:hover::after,
a.bg-gold-500:hover::after {
    left: 100%;
}

/* === Gallery item overlay === */
.gallery-item::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 0.75rem;
    border: 1px solid transparent;
    transition: border-color 0.3s ease;
    z-index: 1;
    pointer-events: none;
}
.gallery-item:hover::before {
    border-color: rgba(212, 168, 83, 0.3);
}

/* === Input autofill styling === */
input:-webkit-autofill,
textarea:-webkit-autofill,
select:-webkit-autofill {
    -webkit-box-shadow: 0 0 0 30px #020617 inset !important;
    -webkit-text-fill-color: #fff !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='%23D4A853' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}