/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a365d;
    --secondary-color: #2d3748;
    --accent-color: #4299e1;
    --light-color: #f7fafc;
    --dark-color: #2d3748;
    --success-color: #48bb78;
    --warning-color: #ed8936;
    --text-color: #4a5568;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.site-header {
    background: linear-gradient(135deg, var(--primary-color), #2c5282);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--box-shadow);
}

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

.logo-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.site-logo {
    height: 60px;
    width: auto;
    border-radius: var(--border-radius);
}

.site-title h1 {
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.site-title p {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Navigation */
.main-nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

.main-nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(26, 54, 93, 0.9), rgba(26, 54, 93, 0.9)),
                url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="%234299e1" opacity="0.1"/></svg>');
    background-size: cover;
    color: white;
    padding: 80px 0;
    text-align: center;
    margin-bottom: 60px;
}

.hero-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
}

.hero-content p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
    animation: fadeInUp 1s ease 0.2s both;
}

.cta-button {
    display: inline-block;
    background-color: var(--accent-color);
    color: white;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    transition: var(--transition);
    animation: fadeInUp 1s ease 0.4s both;
}

.cta-button:hover {
    background-color: #3182ce;
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

/* Categories Section */
.categories {
    padding: 60px 0;
    background-color: white;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    color: var(--primary-color);
    font-size: 2.2rem;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
}

.category-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.category-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.15);
}

.category-card i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.category-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.category-card p {
    color: var(--text-color);
    margin-bottom: 20px;
}

.category-link {
    display: inline-block;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.category-link:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    padding: 60px 0;
}

.blog-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.blog-image {
    height: 200px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
}

.blog-content {
    padding: 25px;
}

.category-badge {
    display: inline-block;
    background-color: var(--accent-color);
    color: white;
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 0.8rem;
    margin-bottom: 15px;
}

.blog-content h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
    line-height: 1.4;
}

.blog-excerpt {
    color: var(--text-color);
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid #e2e8f0;
}

.read-time {
    color: var(--accent-color);
    font-weight: 600;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.read-more:hover {
    color: var(--accent-color);
}

/* Single Blog Page */
.single-blog {
    padding: 60px 0;
    max-width: 800px;
    margin: 0 auto;
}

.blog-header {
    text-align: center;
    margin-bottom: 40px;
}

.blog-header h1 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 20px;
    line-height: 1.3;
}

.blog-meta-single {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.blog-content-single {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.blog-content-single p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.blog-content-single h2,
.blog-content-single h3 {
    color: var(--primary-color);
    margin: 30px 0 20px;
}

.blog-content-single ul,
.blog-content-single ol {
    margin-left: 30px;
    margin-bottom: 20px;
}

/* Footer */
.site-footer {
    background-color: var(--primary-color);
    color: white;
    padding: 60px 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 h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: white;
}

.footer-section p {
    opacity: 0.9;
    line-height: 1.8;
}

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

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

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.9;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent-color);
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 10px;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .category-cards {
        grid-template-columns: 1fr;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}