/* CBT - Cars Bikes Trucks Modern Stylesheet */
:root {
    --primary: #1a1a2e;
    --secondary: #16213e;
    --accent: #e94560;
    --accent-hover: #c73e54;
    --text: #333;
    --text-light: #666;
    --bg: #f5f5f5;
    --white: #ffffff;
    --border: #e0e0e0;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 5px 20px rgba(0,0,0,0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

/* Header & Navigation */
header {
    background: var(--primary);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header-top {
    background: var(--secondary);
    padding: 8px 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.header-top-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: #aaa;
}

.header-main {
    padding: 15px 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo h1 {
    color: var(--white);
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.logo span {
    color: var(--accent);
}

.logo-tagline {
    color: #aaa;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Navigation */
nav {
    background: var(--secondary);
    border-top: 1px solid rgba(255,255,255,0.1);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    display: block;
    padding: 15px 20px;
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-menu a:hover {
    background: var(--accent);
    color: var(--white);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding: 60px 0;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Main Content */
main {
    padding: 40px 0;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 30px;
}

/* Article Cards */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.article-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.article-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.article-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.article-content {
    padding: 25px;
}

.article-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 10px;
    font-size: 0.85rem;
    color: var(--text-light);
}

.article-category {
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1px;
}

.article-card h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    line-height: 1.3;
}

.article-card h3 a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.article-card h3 a:hover {
    color: var(--accent);
}

.article-excerpt {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 15px;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: gap 0.3s ease;
}

.read-more:hover {
    gap: 10px;
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.widget {
    background: var(--white);
    border-radius: 8px;
    padding: 25px;
    box-shadow: var(--shadow);
}

.widget h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent);
    color: var(--primary);
}

.widget ul {
    list-style: none;
}

.widget ul li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

.widget ul li:last-child {
    border-bottom: none;
}

.widget ul li a {
    color: var(--text);
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
}

.widget ul li a:hover {
    color: var(--accent);
}

/* Single Article Page */
.single-article {
    background: var(--white);
    border-radius: 8px;
    padding: 40px;
    box-shadow: var(--shadow);
}

.single-article .article-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.single-article h1 {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 15px;
    line-height: 1.3;
}

.single-article .article-meta {
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.featured-image {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 30px;
}

.article-body {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text);
}

.article-body p {
    margin-bottom: 20px;
}

.article-body h2 {
    font-size: 1.5rem;
    color: var(--primary);
    margin: 30px 0 15px;
}

.article-body h3 {
    font-size: 1.3rem;
    color: var(--secondary);
    margin: 25px 0 12px;
}

.article-body ul, .article-body ol {
    margin-bottom: 20px;
    padding-left: 25px;
}

.article-body li {
    margin-bottom: 8px;
}

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 20px 0;
}

/* Breadcrumbs */
.breadcrumbs {
    background: var(--white);
    padding: 15px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 30px;
}

.breadcrumbs ol {
    list-style: none;
    display: flex;
    gap: 10px;
    font-size: 0.9rem;
}

.breadcrumbs a {
    color: var(--accent);
    text-decoration: none;
}

.breadcrumbs li::after {
    content: '>';
    margin-left: 10px;
    color: var(--text-light);
}

.breadcrumbs li:last-child::after {
    content: '';
}

/* Footer */
footer {
    background: var(--primary);
    color: var(--white);
    padding: 50px 0 20px;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--accent);
}

.footer-section p, .footer-section a {
    color: #aaa;
    text-decoration: none;
    line-height: 1.8;
}

.footer-section a:hover {
    color: var(--white);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    color: #666;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 968px) {
    .content-grid {
        grid-template-columns: 1fr;
    }

    .sidebar {
        order: 2;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--secondary);
        flex-direction: column;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    .hero h2 {
        font-size: 1.8rem;
    }

    .single-article {
        padding: 25px;
    }

    .single-article h1 {
        font-size: 1.6rem;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.5rem;
    }

    .article-content {
        padding: 20px;
    }

    .article-card h3 {
        font-size: 1.2rem;
    }
}

/* Schema markup helper classes */
.schema-hidden {
    display: none;
}

/* Print styles */
@media print {
    header, footer, .sidebar, .breadcrumbs {
        display: none;
    }

    .single-article {
        box-shadow: none;
        padding: 0;
    }
}

/* Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent);
    color: var(--white);
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Focus styles */
a:focus, button:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Loading animation */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.article-card {
    animation: fadeIn 0.5s ease forwards;
}

.article-card:nth-child(1) { animation-delay: 0.1s; }
.article-card:nth-child(2) { animation-delay: 0.2s; }
.article-card:nth-child(3) { animation-delay: 0.3s; }
.article-card:nth-child(4) { animation-delay: 0.4s; }
.article-card:nth-child(5) { animation-delay: 0.5s; }