/* ============================================
   High Quality Auto Upholstery — Custom Styles
   ============================================ */

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

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

body {
    overflow-x: hidden;
}

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

::-webkit-scrollbar-track {
    background: #020617;
}

::-webkit-scrollbar-thumb {
    background: #334155;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #f59e0b;
}

/* Selection */
::selection {
    background: rgba(245, 158, 11, 0.3);
    color: #fbbf24;
}

/* ============================================
   Navbar
   ============================================ */
#navbar.scrolled {
    background: rgba(2, 6, 23, 0.95) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(245, 158, 11, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

/* Mobile menu button animation */
#mobile-menu-btn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

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

#mobile-menu-btn.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
    width: 1.25rem;
}

/* Mobile nav links */
.mobile-nav-link {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(51, 65, 85, 0.5);
}

.mobile-nav-link:last-child {
    border-bottom: none;
}

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

#hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(to top, #020617, transparent);
    pointer-events: none;
}

/* ============================================
   Services
   ============================================ */
.service-card {
    position: relative;
    z-index: 1;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(251, 191, 36, 0), transparent);
    transition: background 0.5s ease;
}

.service-card:hover::before {
    background: linear-gradient(90deg, transparent, rgba(251, 191, 36, 0.5), transparent);
}

/* ============================================
   Gallery
   ============================================ */
.gallery-item {
    cursor: pointer;
}

/* ============================================
   Animations (progressive enhancement)
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
                    transform 0.8s 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; }
}

/* ============================================
   Form styles
   ============================================ */
select option {
    background: #0f172a;
    color: #e2e8f0;
}

/* ============================================
   Responsive adjustments
   ============================================ */
@media (max-width: 767px) {
    .font-display {
        letter-spacing: 0.02em;
    }
}