/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: #f8f9fc;
    color: #1a1a2e;
    line-height: 1.6;
}

/* ===== GOOGLE FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:opsz,wght@14..32,300;14..32,400;14..32,500;14..32,600;14..32,700;14..32,800&display=swap');

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: #0a0a1a;
}

h1 { font-size: 2.5rem; margin-bottom: 1rem; }
h2 { font-size: 1.8rem; margin: 1.5rem 0 1rem; }
h3 { font-size: 1.4rem; margin: 1.2rem 0 0.8rem; }

p {
    margin-bottom: 1.2rem;
    color: #2d2d44;
}

/* ===== LAYOUT ===== */
.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 30px;
}

/* ===== HEADER ===== */
.header {
    background: white;
    box-shadow: 0 2px 20px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255,255,255,0.95);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-decoration: none;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    text-decoration: none;
    color: #1a1a2e;
    font-weight: 500;
    transition: color 0.3s;
}

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

/* ===== HERO SECTION ===== */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0;
    margin-bottom: 50px;
    border-radius: 0 0 30px 30px;
}

.hero h1 {
    color: white;
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    color: rgba(255,255,255,0.9);
    font-size: 1.2rem;
}

/* ===== GRID SYSTEM ===== */
.grid-articles {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

/* ===== ARTICLE CARDS ===== */
.article-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    text-decoration: none;
    color: inherit;
    display: block;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

.card-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.card-content {
    padding: 25px;
}

.card-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #1a1a2e;
}

.card-excerpt {
    color: #666;
    line-height: 1.5;
}

/* ===== ARTICLE PAGE LAYOUT ===== */
.article-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    margin: 50px 0;
}

.article-content {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.article-image {
    width: 100%;
    border-radius: 15px;
    margin: 25px 0;
}

.sidebar {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    position: sticky;
    top: 100px;
}

.sidebar h3 {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.sidebar-list {
    list-style: none;
}

.sidebar-list li {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e0e0e0;
}

.sidebar-list a {
    text-decoration: none;
    color: #1a1a2e;
    font-weight: 500;
    transition: color 0.3s;
}

.sidebar-list a:hover {
    color: #667eea;
}

/* ===== AD BLOCKS ===== */
.ad-block {
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    margin: 20px 0;
    border: 1px solid #ddd;
}

.ad-sidebar {
    margin: 30px 0;
}

.ad-label {
    font-size: 0.8rem;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

/* ===== FOOTER ===== */
.footer {
    background: #0a0a1a;
    color: white;
    padding: 60px 0 30px;
    margin-top: 80px;
}

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

.footer h4 {
    color: white;
    margin-bottom: 20px;
}

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

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

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

.footer-links a:hover {
    color: #667eea;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #222;
    color: #888;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    
    .article-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .header-content {
        flex-direction: column;
        gap: 15px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .article-content {
        padding: 25px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .grid-articles {
        grid-template-columns: 1fr;
    }
    
    .nav {
        gap: 15px;
    }
}