@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&family=Inter:wght@300;400;500;600&display=swap');

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

:root {
    --primary: #1a365d;
    --secondary: #2d5a87;
    --accent: #48bb78;
    --light: #f7fafc;
    --dark: #1a202c;
    --gray: #718096;
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--light);
}

h1, h2, h3, h4 {
    font-family: 'Playfair Display', serif;
}

/* Header */
header {
    background: var(--gradient);
    color: white;
    padding: 1rem 5%;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    font-family: 'Playfair Display', serif;
}

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

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--accent);
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.4)), 
                url('https://images.unsplash.com/photo-1464822759023-fed622ff2c3b?w=1920') center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    padding: 0 5%;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    font-weight: 300;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(72, 187, 120, 0.4);
}

/* Main Content */
main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 5rem 5%;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.section-title p {
    color: var(--gray);
    font-size: 1.1rem;
}

/* Articles Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.article-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.article-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.article-image {
    height: 220px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.article-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(transparent, rgba(0,0,0,0.3));
}

.article-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--accent);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    z-index: 1;
}

.article-content {
    padding: 1.5rem;
}

.article-content h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    color: var(--primary);
}

.article-content p {
    color: var(--gray);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.article-meta {
    padding-top: 1rem;
    border-top: 1px solid #eee;
}

.read-more {
    color: var(--secondary);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: gap 0.3s;
}

.read-more:hover {
    gap: 0.6rem;
    color: var(--accent);
}

.read-more.full-width {
    width: 100%;
    justify-content: center;
    background: var(--secondary);
    color: white;
    padding: 1rem;
    border-radius: 10px;
    margin-top: 1rem;
    transition: background 0.3s;
}

.read-more.full-width:hover {
    background: var(--accent);
    color: white;
}

/* Featured Section */
.featured {
    background: var(--gradient);
    padding: 5rem 5%;
    color: white;
    margin: 4rem 0;
}

.featured-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.featured-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.featured-text p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.featured-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.featured-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

/* Newsletter */
.newsletter {
    background: white;
    padding: 4rem 5%;
    text-align: center;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    margin: 4rem 0;
}

.newsletter h3 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.newsletter p {
    color: var(--gray);
    margin-bottom: 2rem;
}

.newsletter-form {
    display: flex;
    justify-content: center;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 1rem 1.5rem;
    border: 2px solid #e2e8f0;
    border-radius: 50px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

.newsletter-form input:focus {
    border-color: var(--secondary);
}

/* Footer */
footer {
    background: var(--dark);
    color: white;
    padding: 4rem 5% 2rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--accent);
}

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

.footer-section li {
    margin-bottom: 0.8rem;
}

.footer-section a {
    color: #a0aec0;
    text-decoration: none;
    transition: color 0.3s;
}

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

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}

.social-links a:hover {
    background: var(--accent);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #a0aec0;
}

/* Article Page Styles */
.article-hero {
    height: 60vh;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: flex-end;
    position: relative;
}

.article-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 70%;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
}

.article-hero-content {
    position: relative;
    z-index: 1;
    color: white;
    padding: 3rem 5%;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.article-hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.article-hero-meta {
    display: flex;
    gap: 2rem;
    font-size: 0.95rem;
    opacity: 0.9;
}

.article-body {
    max-width: 900px;
    margin: -5rem auto 4rem;
    padding: 3rem;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    position: relative;
    z-index: 2;
}

.article-body p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: #4a5568;
}

.article-body h2 {
    font-size: 1.8rem;
    color: var(--primary);
    margin: 2rem 0 1rem;
}

.article-body ul {
    margin: 1rem 0 1.5rem 1.5rem;
    color: #4a5568;
}

.article-body li {
    margin-bottom: 0.5rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--secondary);
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 2rem;
    transition: gap 0.3s;
}

.back-link:hover {
    gap: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .featured-content {
        grid-template-columns: 1fr;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .article-hero-content h1 {
        font-size: 2rem;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
}

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

.article-card {
    animation: fadeInUp 0.6s ease-out forwards;
}

.article-card:nth-child(2) {
    animation-delay: 0.1s;
}

.article-card:nth-child(3) {
    animation-delay: 0.2s;
}