:root {
            --primary-color: #4f46e5;
            --secondary-color: #22c55e;
            --text-dark: #1e293b;
            --text-light: #64748b;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --border-color: #e2e8f0;
        }
        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.7;
        }
        .container {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        /* --- Header --- */
        .post-header {
            text-align: center;
            padding: 4rem 2rem;
            background-color: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
        }
        .post-header h1 {
            font-size: 2.75rem;
            font-weight: 800;
            color: var(--primary-color);
            margin: 0;
        }
        .post-header p {
            font-size: 1.2rem;
            color: var(--text-light);
            margin-top: 0.5rem;
        }

        /* --- Article Content --- */
        .article-content {
            padding: 3rem 0;
        }
        .article-content h2 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            color: var(--text-dark);
        }
        .article-content p {
            font-size: 1.1rem;
            color: var(--text-light);
            margin-bottom: 1.5rem;
        }
        .article-content blockquote {
            margin: 2rem 0;
            padding-left: 1.5rem;
            border-left: 4px solid var(--secondary-color);
            font-size: 1.2rem;
            font-style: italic;
            color: var(--text-dark);
        }

        /* --- Image with Caption --- */
        .image-with-caption {
            margin: 2.5rem 0;
            background-color: var(--bg-white);
            border-radius: 0.75rem;
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.07);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        .image-with-caption img {
            width: 100%;
            display: block;
        }
        .image-with-caption figcaption {
            padding: 1rem 1.25rem;
            font-size: 0.9rem;
            color: var(--text-light);
            text-align: center;
            background-color: #f9fafb;
        }

        /* --- Callout Box for Takeaways --- */
        .callout {
            padding: 1.5rem;
            margin-top: 2rem;
            border-radius: 0.5rem;
            border-left: 4px solid var(--primary-color);
            background-color: #eef2ff;
            color: #3730a3;
        }
        .callout h3 {
            margin: 0 0 0.5rem 0;
            font-size: 1.2rem;
            color: #312e81;
        }
        .callout ul {
            padding-left: 1.25rem;
            margin: 0;
        }
        .callout li {
            margin-bottom: 0.5rem;
        }