/* ========================================
   ARD Brothers Auto Sales — Custom Styles
   Premium Dark Luxury Theme
   ======================================== */

/* --- Reset & Base --- */
*, *::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: #f1f5f9;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #020617;
}
::-webkit-scrollbar-thumb {
    background: #334155;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #d4a853;
}

/* --- Navbar --- */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(2, 6, 23, 0.92);
    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);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: linear-gradient(90deg, #d4a853, #2dd4bf);
    transition: width 0.3s ease;
}

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

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

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

.mobile-link {
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.3s; }

/* --- Menu Button --- */
.menu-line {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#menu-btn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

#menu-btn.active .menu-line:nth-child(3) {
    width: 6;
    transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Vehicle Cards --- */
.vehicle-card {
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.5s ease,
                border-color 0.5s ease;
}

.vehicle-card:hover {
    transform: translateY(-4px);
}

/* --- Process Cards --- */
.process-card {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.process-card:hover {
    transform: translateY(-4px);
}

/* --- Testimonial Cards --- */
.testimonial-card {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.4s ease,
                box-shadow 0.4s ease;
}

.testimonial-card:hover {
    transform: translateY(-2px);
}

/* --- Scroll Reveal Animations --- */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.reveal-up {
    opacity: 0;
    transform: translateY(40px);
}

.reveal.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
}

.reveal.reveal-right {
    opacity: 0;
    transform: translateX(40px);
}

.reveal.reveal-scale {
    opacity: 0;
    transform: scale(0.95);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0) translateX(0) scale(1);
}

/* Stagger delays */
.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; }

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    .reveal,
    .reveal.reveal-up,
    .reveal.reveal-left,
    .reveal.reveal-right,
    .reveal.reveal-scale {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .vehicle-card,
    .process-card,
    .testimonial-card {
        transition: none;
    }
    .vehicle-card:hover,
    .process-card:hover,
    .testimonial-card:hover {
        transform: none;
    }
}

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

/* --- Custom focus styles --- */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #d4a853;
    outline-offset: 2px;
    border-radius: 4px;
}

/* --- Image loading placeholder --- */
img {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

/* --- Responsive tweaks --- */
@media (max-width: 768px) {
    #hero h1 {
        font-size: 3.5rem;
    }
}

@media (max-width: 640px) {
    #hero h1 {
        font-size: 2.75rem;
    }
}