/* Modern RC Car Website Styles - 2025 Edition */
/* Complementary styles to Tailwind CSS */

/* Custom animations and transitions */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Enhanced card hover effects */
.card-hover-enhanced {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-hover-enhanced:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
}

/* Mobile menu styles */
.mobile-menu {
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
}

.mobile-menu.active {
    transform: translateX(0);
}

/* Technology category badges */
.tech-badge {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    display: inline-block;
    transition: all 0.2s ease;
}

.tech-badge:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* Reading progress bar */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    z-index: 1000;
    transition: width 0.1s ease;
}

/* Article metadata styles */
.article-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: #6b7280;
    font-size: 0.875rem;
}

.article-meta .separator {
    width: 4px;
    height: 4px;
    background-color: #d1d5db;
    border-radius: 50%;
}

/* Search bar styles */
.search-container {
    position: relative;
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    border: 2px solid #e5e7eb;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.search-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
}

/* Breadcrumb navigation */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: #6b7280;
    margin-bottom: 1rem;
}

.breadcrumb a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.2s ease;
}

.breadcrumb a:hover {
    color: #5a6fd8;
}

.breadcrumb .separator {
    color: #d1d5db;
}

/* Table of contents for articles */
.toc {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 2rem;
}

.toc h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: #1f2937;
}

.toc ul {
    list-style: none;
    padding: 0;
}

.toc li {
    margin-bottom: 0.5rem;
}

.toc a {
    color: #4b5563;
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s ease;
}

.toc a:hover {
    color: #667eea;
}

/* Responsive typography */
@media (max-width: 640px) {
    .responsive-text {
        font-size: 0.875rem;
        line-height: 1.5;
    }
}

/* Print styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    a {
        color: #000;
        text-decoration: none;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .dark-mode-auto {
        background-color: #1f2937;
        color: #f9fafb;
    }
    
    .dark-mode-auto .bg-white {
        background-color: #374151 !important;
    }
    
    .dark-mode-auto .text-gray-800 {
        color: #f9fafb !important;
    }
    
    .dark-mode-auto .text-gray-600 {
        color: #d1d5db !important;
    }
}

/* Performance optimizations */
.gpu-accelerated {
    transform: translateZ(0);
    will-change: transform;
}

/* Focus styles for accessibility */
.focus-visible:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Loading skeleton */
.skeleton {
    background: linear-gradient(90deg, #f3f4f6 25%, #e5e7eb 50%, #f3f4f6 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}