/* Custom styles for London Lighting */

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Navigation scroll state */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #a855f7;
    transition: width 0.3s ease;
    border-radius: 1px;
}

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

/* Navbar background on scroll */
#navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
}

#navbar.scrolled .nav-text {
    color: #1f2937;
}

#navbar.scrolled .mobile-nav-link {
    color: #374151;
}

/* Scroll indicator animation */
@keyframes bounce-down {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

.scroll-indicator {
    animation: bounce-down 2s ease-in-out infinite;
}

/* Product card hover effects */
.product-card {
    opacity: 1;
}

/* Why us card hover */
.why-card {
    transform: translateY(0);
}

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

/* Testimonial card hover */
.testimonial-card {
    transform: translateY(0);
}

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

/* Mobile menu transitions */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.3s ease;
    opacity: 0;
}

#mobile-menu.open {
    max-height: 400px;
    opacity: 1;
}

/* Input focus animations */
input:focus,
textarea:focus {
    box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.15);
}

/* Custom selection color */
::selection {
    background: #a855f7;
    color: white;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Fade-in animations for scroll reveal */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delays for grid items */
.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; }

/* Tablet and up */
@media (min-width: 640px) {
    #mobile-menu.open {
        max-height: 500px;
    }
}

/* Large screens */
@media (min-width: 1024px) {
    .product-card:hover .absolute {
        opacity: 1;
        transform: translateY(0);
    }
}