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

body {
    font-family: 'Inter', sans-serif;
    background-color: #f8f9fc;
    color: #1a1f2e;
    line-height: 1.65;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

h2 {
    font-size: 1.75rem;
    margin: 1.5rem 0 1rem;
}

h3 {
    font-size: 1.3rem;
    margin: 1.25rem 0 0.75rem;
}

p {
    margin-bottom: 1rem;
    color: #2c3e44;
}

a {
    text-decoration: none;
    color: #1a1f2e;
    transition: all 0.2s ease;
}

ul, ol {
    margin: 1rem 0 1rem 2rem;
}

li {
    margin-bottom: 0.5rem;
    color: #2c3e44;
}

/* ===== LAYOUT ===== */
.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== HEADER ===== */
.header {
    position: sticky;
    top: 0;
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    z-index: 100;
    padding: 16px 0;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav {
    display: flex;
    gap: 28px;
}

.nav a {
    font-weight: 500;
    color: #2c3e44;
}

.nav a:hover {
    color: #2a5298;
}

/* ===== HERO ===== */
.hero {
    background: linear-gradient(120deg, #eef2f7 0%, #e0e8f0 100%);
    border-radius: 32px;
    padding: 60px 48px;
    margin: 40px 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 16px;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.8;
}

/* ===== CARDS GRID ===== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 30px;
    margin: 50px 0;
}

.card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.05), 0 8px 10px -6px rgba(0,0,0,0.02);
    transition: all 0.3s cubic-bezier(0.2, 0, 0, 1);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 40px -12px rgba(0,0,0,0.15);
}

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

.card-content {
    padding: 24px;
}

.card h3 {
    margin: 0 0 10px;
    font-size: 1.4rem;
}

.card p {
    color: #5a6b73;
    margin-bottom: 16px;
}

.read-more {
    display: inline-block;
    font-weight: 600;
    color: #2a5298;
}

/* ===== ARTICLE PAGE LAYOUT ===== */
.article-layout {
    display: flex;
    gap: 48px;
    margin: 48px 0;
    flex-wrap: wrap;
}

.article-main {
    flex: 2;
    min-width: 280px;
}

.article-sidebar {
    flex: 1;
    min-width: 260px;
}

.sidebar-widget {
    background: white;
    border-radius: 24px;
    padding: 28px;
    margin-bottom: 32px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}

.sidebar-widget h3 {
    margin-top: 0;
    border-left: 4px solid #2a5298;
    padding-left: 16px;
}

.sidebar-links {
    list-style: none;
    margin-left: 0;
}

.sidebar-links li {
    margin-bottom: 14px;
    border-bottom: 1px solid #eef2f7;
    padding-bottom: 12px;
}

.sidebar-links a {
    font-weight: 500;
}

.article-img {
    width: 100%;
    border-radius: 24px;
    margin: 24px 0;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
}

/* ===== AD BLOCKS ===== */
.ad-block {
    background: #f0f3f8;
    border-radius: 20px;
    padding: 24px;
    text-align: center;
    border: 1px dashed #bbccdd;
    margin: 24px 0;
}

.ad-sidebar-block {
    background: #f5f7fb;
    border-radius: 20px;
    padding: 24px;
    text-align: center;
    border: 1px dashed #cbd5e1;
}

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

/* ===== FOOTER ===== */
.footer {
    background: #0f172a;
    color: #cbd5e1;
    padding: 48px 0 24px;
    margin-top: 80px;
    border-radius: 32px 32px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

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

.footer-links {
    list-style: none;
    margin-left: 0;
}

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

.footer-links a {
    color: #cbd5e1;
}

.footer-links a:hover {
    color: white;
}

.copyright {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid #1e293b;
    font-size: 0.85rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    .hero {
        padding: 40px 24px;
    }
    .hero h1 {
        font-size: 2rem;
    }
    .cards-grid {
        grid-template-columns: 1fr;
    }
    .article-layout {
        flex-direction: column;
    }
    .nav {
        gap: 16px;
        flex-wrap: wrap;
    }
}

/* ===== UTILITIES ===== */
.text-accent {
    color: #2a5298;
}