/* ===== Base & Reset ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(212, 175, 55, 0.3);
    color: #f0f0f0;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0A1628;
}
::-webkit-scrollbar-thumb {
    background: #1D3557;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #D4AF37;
}

/* ===== Nav ===== */
.nav-link {
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: linear-gradient(90deg, #D4AF37, #F5D76E);
    transition: width 0.3s ease;
}
.nav-link:hover::after {
    width: 100%;
}

/* Navbar scrolled state */
.nav-scrolled {
    background: rgba(5, 10, 24, 0.95) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* Mobile menu */
.mobile-menu-open .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.mobile-menu-open .menu-line:nth-child(2) {
    opacity: 0;
}
.mobile-menu-open .menu-line:nth-child(3) {
    width: 6px;
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Hero ===== */
#hero {
    position: relative;
}

/* ===== Service Cards ===== */
.service-card {
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.02), transparent);
    transition: left 0.6s ease;
}
.service-card:hover::before {
    left: 100%;
}

/* ===== Reveal Animations ===== */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-hidden {
    opacity: 0;
    transform: translateY(30px);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal-hidden {
        opacity: 0;
        transform: translateY(30px);
    }
    .reveal-visible {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Gold shimmer on hover ===== */
@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

/* ===== Button ripple ===== */
button, a {
    cursor: pointer;
}

/* ===== Image lazy loading ===== */
img[loading="lazy"] {
    transition: opacity 0.3s ease;
}
img[loading="lazy"].loaded {
    opacity: 1;
}

/* ===== Focus styles ===== */
input:focus, textarea:focus, button:focus, a:focus {
    outline: none;
}

/* ===== Responsive adjustments ===== */
@media (max-width: 640px) {
    .font-display {
        line-height: 1.2;
    }
}

@media (min-width: 641px) and (max-width: 1023px) {
    .service-card {
        padding: 2rem;
    }
}

/* ===== Print ===== */
@media print {
    body {
        background: white;
        color: black;
    }
    .fixed, nav, #navbar {
        position: static !important;
    }
}