@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&family=Open+Sans:wght@400;600&display=swap');

body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: radial-gradient(circle, #1A237E, #651FFF);
    color: #FFFFFF;
    overflow-x: hidden;
    line-height: 1.6;
}

header {
    text-align: center;
    padding: 30px 20px;
    background: linear-gradient(135deg, #1A237E, #3949AB);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

header h1 {
    font-size: 2.5rem;
    font-weight: bold;
    margin: 0;
    animation: fadeIn 2s ease-in-out;
}

header p {
    font-size: 1rem;
    opacity: 0.8;
    margin-top: 10px;
}

.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin: 20px auto;
    max-width: 1200px;
    padding: 0 20px;
}

.left-section {
    width: calc(50% - 20px);
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center, linear-gradient(to bottom right, #651FFF, transparent);
    background-size: cover;
    height: 500px;
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    animation: aurora-move 15s linear infinite;
}

.right-section {
    width: calc(50% - 20px);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 20px;
    box-sizing: border-box;
    transition: transform 0.3s ease;
}

.right-section:hover {
    transform: translateY(-5px);
}

.article-content {
    font-family: 'Open Sans', sans-serif;
    font-size: 1rem;
    line-height: 1.8;
    color: #FFFFFF;
    margin-top: 20px;
}

.article-content h2, .article-content h3 {
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    margin-top: 20px;
    margin-bottom: 10px;
}

.article-content pre {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 10px;
    overflow-x: auto;
    font-size: 0.9rem;
    color: #D3D3D3;
}

@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }

    .left-section, .right-section {
        width: 100%;
    }

    .left-section {
        height: 300px;
    }
}

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

@keyframes aurora-move {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

button {
    background: linear-gradient(135deg, #651FFF, #3949AB);
    color: #FFFFFF;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
}

button:hover {
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.8);
    transform: scale(1.1);
}

footer {
    text-align: center;
    padding: 20px;
    background: #1A237E;
    color: #FFFFFF;
    font-size: 0.9rem;
    margin-top: 20px;
}