/* BASE-STYLES */
    body {
        max-width: 1300px;
        margin: 50px auto;
        padding: 20px;
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        line-height: 1.6;
        background-color: #000000ec;
        color: #e0e0e0;
        background-image: 
            linear-gradient(rgba(255, 255, 255, 0.036) 1px, transparent 1px),
            linear-gradient(90deg, rgba(255, 255, 255, 0.036) 1px, transparent 1px);
        background-size: 30px 30px;

    }
    .back-link {color: #888; text-decoration: none; font-size: 15px; padding-bottom: 2px; transition: all 0.3s ease;}
    .back-link:hover { color: #641159; }

    /* TYPOGRAPHY */
    h2 { font-size: 24px; color: #e0e0e0; border-bottom: 1px solid #333; padding-bottom: 10px; margin-top: 50px; margin-bottom: 20px; }
    h3 { font-size: 20px; color: #3d7375; margin-top: 30px; }
    .highlight { background-color: #2d4040; color: #fff; padding: 2px 5px; border-radius: 3px; }
    .meta { color: #6b6b6b; font-size: 14px; margin-bottom: 40px; }

    /* CODE BLOCKS */
    pre { background: #151515; padding: 15px; border-radius: 5px; overflow-x: auto; border: 1px solid #333; }
    code { font-family: 'Menlo', 'Monaco', 'Courier New', monospace; font-size: 14px; color: #a9b7c6; }
    code.tag-concept { border: 1px solid #3d7375 ; padding: 2px 6px; border-radius: 3px;display: inline-block; }

    /* MATH BLOCKS AND TOGGLE */
    .math-block {background: rgba(255, 255, 255, 0.03);border-left: 3px solid #4c7273; padding: 20px; margin: 10px 0; font-family: 'Courier New', monospace; }
    .math-block .divider { border-bottom: 1px solid #333; margin: 15px 0; }
    .math-row { display: block; align-items: center; margin-bottom: 10px; }

    .formula-toggle { font-family: 'Courier New', monospace; font-size: 14px; color: white; cursor: pointer; user-select: none; transition: color 0.2s ease;}
    .formula-toggle:hover { color: #3d7375; }
    .formula-toggle::before { content: '$ cat '; }
    .formula-content { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; font-size: 13px; line-height: 1.6; margin-top: 10px; padding: 0 8px;}
    .formula-content.open { max-height: 1500px; }
    .sbs { display: flex; gap: 40px; align-items: flex-start; }



    .writeup-container img { display: block; margin: 30px auto; max-width: 90%; height: auto; border: 1px solid #333; border-radius: 4px; }
    .label { color: #6b6b6b; width: 150px; font-size: 15px; text-transform: uppercase; letter-spacing: 1px; }
    .image-wrapper { text-align: center; width: 100%; }
    .caption { font-size: 0.85em; color: #888; margin-top: -20px; margin-bottom: 30px;}
    .stat-box { margin-top: 20px; padding-top: 15px; border-top: 1px solid #333; }

    .bat {padding: 12px;border: 1px solid #ddd;}