body {
    font-family: 'Open Sans', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #1c2e4a, #3b0757);
    color: #fff;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    padding: 40px 20px;
}

header h1 {
    font-family: 'Roboto', sans-serif;
    font-size: 2.5em;
    font-weight: bold;
    margin-bottom: 10px;
    color: #f8f9fa;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

header p {
    font-size: 1.1em;
    color: #d3d3d3;
    margin-bottom: 20px;
}

.prompt-message {
    color: #ffc107;
    font-weight: bold;
    text-align: center;
    margin-bottom: 20px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.card {
    background: linear-gradient(145deg, #283a58, #471865);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.5);
}

.card-title {
    font-family: 'Roboto', sans-serif;
    font-size: 1.6em;
    font-weight: bold;
    margin-bottom: 15px;
    color: #ffffff;
}

.card-description {
    font-size: 1em;
    line-height: 1.5;
    color: #e0e0e0;
    margin-bottom: 20px;
}

.card-image {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 20px;
    overflow: hidden;
}

.card-image img {
    display: block;
    width: 100%;
    height: auto;
    transition: transform 0.5s ease;
}

.card:hover .card-image img {
    transform: scale(1.1);
}


.article-section {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 40px;
    margin-bottom: 40px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.article-section h2 {
    font-family: 'Roboto', sans-serif;
    font-size: 2em;
    font-weight: bold;
    color: #ffffff;
    margin-bottom: 25px;
    text-align: center;
}

.article-section h3 {
    font-family: 'Roboto', sans-serif;
    font-size: 1.5em;
    font-weight: bold;
    color: #ffffff;
    margin-top: 30px;
    margin-bottom: 15px;
}

.article-section p {
    font-size: 1em;
    line-height: 1.7;
    color: #dcdcdc;
    margin-bottom: 20px;
    word-wrap: break-word;
}

.article-section blockquote {
    border-left: 5px solid #6c757d;
    padding-left: 20px;
    margin: 20px 0;
    font-style: italic;
    color: #adb5bd;
}

.article-section pre {
    background-color: #212529;
    color: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    word-wrap: break-word;
    white-space: pre-wrap;
}

.article-section code {
    font-family: 'Courier New', monospace;
    color: #ffc107;
}

.article-section ul, .article-section ol {
    margin-left: 20px;
    margin-bottom: 20px;
    color: #dcdcdc;
}

.article-section li {
    line-height: 1.6;
    margin-bottom: 10px;
}

.article-section hr {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin: 30px 0;
}

.article-section table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
    color: #dcdcdc;
}

.article-section th, .article-section td {
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 10px;
    text-align: left;
}

.article-section th {
    background-color: rgba(255, 255, 255, 0.08);
    font-weight: bold;
}


footer {
    text-align: center;
    padding: 30px 20px;
    color: #868e96;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
    header {
        padding: 30px 15px;
    }

    header h1 {
        font-size: 2em;
    }

    header p {
        font-size: 1em;
    }

    .card-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .card {
        padding: 20px;
    }

    .card-title {
        font-size: 1.4em;
    }

    .card-description {
        font-size: 0.95em;
    }

    .article-section {
        padding: 30px;
    }

    .article-section h2 {
        font-size: 1.8em;
    }

    .article-section h3 {
        font-size: 1.3em;
    }

    .article-section p {
        font-size: 0.9em;
    }
}

@media (max-width: 480px) {
    header {
        padding: 20px 10px;
    }

    header h1 {
        font-size: 1.8em;
    }

    header p {
        font-size: 0.9em;
    }

    .card {
        padding: 15px;
    }

    .card-title {
        font-size: 1.2em;
    }

    .card-description {
        font-size: 0.85em;
    }

    .article-section {
        padding: 20px;
    }

    .article-section h2 {
        font-size: 1.6em;
    }

    .article-section h3 {
        font-size: 1.2em;
    }

    .article-section p {
        font-size: 0.8em;
    }
}