/* ===== BASE ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { overflow-x: hidden; }

/* ===== HEADER ===== */
#site-header {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}
#site-header.scrolled {
    background: rgba(6, 21, 43, 0.95);
    backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(255,255,255,0.05);
}

/* ===== MOBILE NAV ===== */
#mobile-nav.open { display: flex; }
#mobile-nav[aria-hidden="true"] { display: none; }
#mobile-nav[aria-hidden="false"] { display: flex; }

.mobile-link {
    position: relative;
}
.mobile-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #c8a44e;
    transition: width 0.3s ease;
}
.mobile-link:hover::after { width: 100%; }

/* ===== SERVICE CARDS ===== */
.service-card {
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #c8a44e, #f2d066);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}
.service-card:hover::before {
    transform: scaleX(1);
}

/* ===== SCROLL REVEAL ===== */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===== SELECTION ===== */
::selection {
    background: #c8a44e;
    color: #0a1f3f;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #0a1f3f; }
::-webkit-scrollbar-thumb { background: #c8a44e; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #f2d066; }

/* ===== 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;
    }
    .reveal { opacity: 1; transform: none; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
    .font-serif { line-height: 1.1; }
}