@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-page: #fbfbfe;
    --bg-card: #ffffff;
    --border-color: #e5e7eb;
    --text-main: #1f2937;
    --text-muted: #4b5563;
    --text-light: #6b7280;
    --primary: hsl(215, 70%, 50%);
    --primary-light: hsl(215, 85%, 94%);
    --accent: hsl(260, 80%, 55%);
    --gradient: linear-gradient(135deg, hsl(215, 70%, 50%) 0%, hsl(260, 80%, 55%) 100%);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 25px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
}

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

body {
    background-color: var(--bg-page);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

nav.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 30px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

nav.navbar .brand {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
}

nav.navbar .nav-links { display: flex; gap: 25px; }

nav.navbar a.nav-item {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

nav.navbar a.nav-item:hover { color: var(--primary); }

.hero {
    padding: 70px 20px 50px;
    text-align: center;
    background: radial-gradient(circle at top, var(--primary-light) 0%, transparent 70%);
    border-bottom: 1px solid var(--border-color);
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 4vw, 3.8rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 18px;
    color: var(--text-main);
}

.hero p.subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 750px;
    margin: 0 auto 25px;
}

.author-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-card);
    padding: 8px 18px;
    border-radius: 30px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.author-badge img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
}

.author-badge span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
}

main.container {
    max-width: 900px;
    margin: 50px auto;
    padding: 0 20px;
}

article.article-body {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 18px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

article.article-body h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin: 35px 0 15px;
    color: var(--text-main);
}

article.article-body h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    margin: 25px 0 12px;
    color: var(--text-main);
}

article.article-body p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: #374151;
    line-height: 1.85;
}

article.article-body p.lead {
    font-size: 1.25rem;
    font-weight: 500;
    color: #1f2937;
    margin-bottom: 30px;
}

article.article-body ul, article.article-body ol { margin: 20px 0 30px 25px; }

article.article-body li {
    margin-bottom: 12px;
    font-size: 1.05rem;
    color: #374151;
}

article.article-body blockquote {
    border-left: 4px solid var(--primary);
    padding: 20px 25px;
    margin: 35px 0;
    background: var(--primary-light);
    border-radius: 0 12px 12px 0;
    font-style: italic;
    font-size: 1.15rem;
    color: #1f2937;
}

article.article-body a {
    color: var(--primary);
    text-decoration: underline;
    font-weight: 600;
    transition: color 0.2s ease;
}

article.article-body a:hover { color: var(--accent); }

.section-heading {
    font-family: var(--font-heading);
    font-size: 2rem;
    margin: 60px 0 25px;
    color: var(--text-main);
    text-align: center;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 25px;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.article-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: 12px;
    line-height: 1.4;
}

.article-card h3 a {
    color: var(--text-main);
    text-decoration: none;
}

.article-card h3 a:hover { color: var(--primary); }

.article-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 15px;
}

footer {
    text-align: center;
    padding: 50px 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-light);
    font-size: 0.95rem;
    margin-top: 80px;
    background: #ffffff;
}

@media (max-width: 768px) {
    article.article-body { padding: 25px 20px; }
    nav.navbar { flex-direction: column; gap: 15px; }
}