/* Reset and Base Styles */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --text-color: #333;
    --light-gray: #f5f6fa;
    --medium-gray: #95a5a6;
    --container-width: 1200px;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #f5f6fa;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
    color: var(--primary-color);
}

p {
    margin-bottom: var(--spacing-lg);
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-color);
}

/* Header Styles */
.site-header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

/* Post Grid Styles */
.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
}

.post-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.post-card:hover {
    transform: translateY(-5px);
}

.post-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.post-card-content {
    padding: var(--spacing-md);
}

.post-card h2 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.post-card p {
    color: var(--medium-gray);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
}

/* Blog Post Styles */
.blog-post {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.blog-post h1, .blog-post h2 {
    font-size: 2.5rem;
    margin: var(--spacing-xl) 0 var(--spacing-lg);
}

.blog-post h2 {
    font-size: 2rem;
}

.blog-post h3 {
    font-size: 1.5rem;
    margin: var(--spacing-lg) 0 var(--spacing-md);
}

.blog-post img {
    width: 100%;
    height: auto;
    margin: var(--spacing-lg) 0;
    border-radius: 8px;
}

.read-time {
    color: var(--medium-gray);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-lg);
}

.faq-section {
    margin: var(--spacing-xl) 0;
    background-color: #f8f9fc;
    padding: var(--spacing-lg);
    border-radius: 8px;
}

.faq-section h2 {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid #e1e4e8;
}

.faq-item {
    margin-bottom: var(--spacing-md);
    border: 1px solid #e1e4e8;
    border-radius: 8px;
    overflow: hidden;
    background-color: #fff;
}

.faq-item h3 {
    margin: 0;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--primary-color);
    background-color: #fff;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
    transition: background-color 0.3s ease;
}

.faq-item h3:hover {
    background-color: #f8f9fc;
}

.faq-item h3::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: normal;
}

.faq-item.active h3::after {
    content: '−';
}

.faq-item p {
    margin: 0;
    padding: 0 var(--spacing-lg);
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    opacity: 0;
}

.faq-item.active p {
    padding: var(--spacing-lg);
    max-height: 1000px;
    opacity: 1;
    margin-bottom: 0;
}

/* Social Share Buttons */
.social-share {
    display: flex;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.social-share a {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 4px;
    color: #fff;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.social-share .facebook {
    background-color: #3b5998;
}

.social-share .twitter {
    background-color: #1da1f2;
}

.social-share .linkedin {
    background-color: #0077b5;
}

/* Related Posts */
.related-posts {
    margin: var(--spacing-xl) 0;
}

.related-posts h2 {
    margin-bottom: var(--spacing-lg);
}

.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

/* Footer Styles */
.site-footer {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1a2639 100%);
    color: #fff;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), #4CAF50, #FFC107);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

.footer-section {
    padding: var(--spacing-md);
}

.footer-section h3 {
    color: #fff;
    margin-bottom: var(--spacing-lg);
    font-size: 1.3rem;
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--secondary-color);
    border-radius: 2px;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-md);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
}

.footer-section a::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    bottom: -2px;
    left: 0;
    background-color: var(--secondary-color);
    transform: scaleX(0);
    transform-origin: bottom right;
    transition: transform 0.3s ease;
}

.footer-section a:hover {
    color: #fff;
}

.footer-section a:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.footer-bottom {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: center;
    }

    .footer-section h3::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .footer-section {
        padding: var(--spacing-sm);
    }

    .footer-section ul li {
        margin-bottom: var(--spacing-sm);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .site-header .container {
        flex-direction: column;
        text-align: center;
    }

    .main-nav {
        margin-top: var(--spacing-md);
    }

    .main-nav ul {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .blog-post h1 {
        font-size: 2rem;
    }

    .social-share {
        flex-wrap: wrap;
    }

    .social-share a {
        flex: 1 1 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
    }

    .post-grid {
        grid-template-columns: 1fr;
    }

    .related-posts-grid {
        grid-template-columns: 1fr;
    }
}