/* WordPress / Medium Style Blog Theme */
:root {
    --text-color: #333333;
    --text-light: #666666;
    --bg-color: #ffffff;
    --link-color: #1a73e8;
    --border-color: #e5e5e5;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-serif: 'Merriweather', Georgia, 'Times New Roman', Times, serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-serif);
    line-height: 1.8;
    font-size: 1.125rem; /* 18px */
    -webkit-font-smoothing: antialiased;
}

/* Container */
.container {
    max-width: 740px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Site Header */
.site-header {
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 60px;
}

.site-title {
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 1.25rem;
}

.site-title a {
    text-decoration: none;
    color: #111;
}

/* Article Header */
.post-header {
    margin-bottom: 40px;
}

.post-meta {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.post-title {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: 2.75rem;
    line-height: 1.2;
    color: #111;
    margin-bottom: 30px;
    letter-spacing: -0.02em;
}

/* Images */
figure {
    margin: 40px 0;
}

figure img {
    width: 100%;
    height: auto;
    border-radius: 4px;
    display: block;
}

figcaption {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--text-light);
    text-align: center;
    margin-top: 12px;
}

/* Typography & Content */
.post-content h2, .post-content h3 {
    font-family: var(--font-sans);
    color: #111;
    margin-top: 48px;
    margin-bottom: 16px;
    line-height: 1.3;
}

.post-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
}

.post-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.post-content p {
    margin-bottom: 24px;
}

.post-content .lead {
    font-size: 1.3rem;
    line-height: 1.6;
    color: #444;
    margin-bottom: 40px;
}

.post-content strong {
    font-weight: 700;
    color: #111;
}

.post-content ul, .post-content ol {
    margin-bottom: 24px;
    padding-left: 20px;
}

.post-content li {
    margin-bottom: 12px;
}

/* Separator */
.separator {
    border: 0;
    height: 1px;
    background-color: var(--border-color);
    margin: 60px 0 40px;
}

/* References Section */
.references h2 {
    font-family: var(--font-sans);
    font-size: 1.25rem;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-light);
}

.references ol {
    font-size: 0.95rem;
    color: var(--text-light);
    padding-left: 20px;
    font-family: var(--font-sans);
}

.references li {
    margin-bottom: 12px;
    line-height: 1.6;
}

.references em {
    color: #333;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    margin-top: 60px;
    text-align: center;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Responsive */
@media (max-width: 768px) {
    .post-title {
        font-size: 2rem;
    }
    
    body {
        font-size: 1.05rem;
    }
}