/* CSS Variables for Color Scheme */
    :root {
        --primary-color: #6C5CE7; /* 70% */
        --secondary-color: #FF6B35; /* 5% */
        --background-color: #121212; /* 25% */
        --text-color: #FFFFFF;
        --accent-color: #FF6B35;
        --gradient-start: #6C5CE7;
        --gradient-end: #121212;
        --border-color: rgba(108, 92, 231, 0.5);
    }

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

    body {
        font-family: 'Open Sans', sans-serif;
        background: linear-gradient(to bottom, var(--gradient-start), var(--gradient-end));
        color: var(--text-color);
        line-height: 1.6;
        font-size: 16px;
        overflow-x: hidden;
        padding: 20px;
    }

    h2, h3, h4 {
        font-family: 'Roboto', sans-serif;
        color: var(--primary-color);
        margin-bottom: 15px;
        position: relative;
    }

    h2::after, h3::after, h4::after {
        content: '';
        display: block;
        width: 50px;
        height: 3px;
        background: var(--secondary-color);
        margin-top: 5px;
        border-radius: 2px;
    }

    p {
        margin-bottom: 15px;
        color: var(--text-color);
        text-shadow: 0 0 0.5px var(--primary-color), 0 0 1px var(--primary-color);
    }

    ul {
        list-style: inside disc;
        margin-bottom: 15px;
    }

    li {
        margin-bottom: 10px;
    }

    pre {
        background: #1E1E1E;
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
        box-shadow: 0 4px 6px rgba(0,0,0,0.3);
        margin-bottom: 15px;
    }

    code {
        color: var(--secondary-color);
        font-family: 'Courier New', Courier, monospace;
    }

    /* Layout */
    .container {
        max-width: 1200px;
        margin: 0 auto;
    }

    article {
        display: grid;
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .section {
        background-color: rgba(18, 18, 18, 0.8);
        padding: 30px;
        border-radius: 12px;
        box-shadow: 0 8px 16px rgba(0,0,0,0.5);
        position: relative;
        overflow: hidden;
    }

    .section::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(120deg, var(--secondary-color), transparent);
        transform: skewX(-45deg);
        transition: all 0.5s ease;
    }

    .section:hover::before {
        left: 100%;
    }

    /* Images */
    .decorative-image {
        width: 100%;
        max-width: 320px;
        border-radius: 12px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.3);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        margin: 20px 0;
    }

    .decorative-image:hover {
        transform: scale(1.05);
        box-shadow: 0 8px 16px rgba(0,0,0,0.5);
    }

    /* Notice */
    .notice {
        text-align: center;
        font-size: 18px;
        margin: 40px 0;
        color: var(--secondary-color);
        animation: fadeIn 2s ease-in-out;
    }

    /* Responsive Grid for Data Visualization */
    .data-visualization {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
    }

    .data-card {
        background-color: #1E1E1E;
        padding: 20px;
        border-radius: 8px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.3);
        transition: transform 0.3s ease, background 0.3s ease;
    }

    .data-card:hover {
        transform: translateY(-5px);
        background-color: #2E2E2E;
    }

    /* Footer */
    footer {
        text-align: center;
        padding: 20px 0;
        border-top: 1px solid var(--border-color);
        margin-top: 40px;
    }

    /* Animations */
    @keyframes fadeIn {
        from { opacity: 0; }
        to { opacity: 1; }
    }

    @media (min-width: 768px) {
        article {
            grid-template-columns: 1fr 1fr;
        }
        .section {
            grid-column: span 2;
        }
    }

    @media (max-width: 768px) {
        body {
            padding: 10px;
        }
        .decorative-image {
            max-width: 100%;
        }
    }