body {
    margin: 0;
    font-family: 'Montserrat Light', sans-serif;
    line-height: 1.6;
    background: linear-gradient(135deg, #f9f9f9, #eaeaea);
    color: #333;
    padding: 20px;
    transition: background 0.5s ease;
}

h1, h2, h3 {
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    color: #4B0082;
    text-align: center;
    margin-bottom: 20px;
}

h1 {
    font-size: 2.5rem;
    background: linear-gradient(90deg, #4B0082, #00FF7F);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: 2rem;
    position: relative;
}

h2::after {
    content: '';
    display: block;
    width: 50px;
    height: 2px;
    background: linear-gradient(90deg, #4B0082, #00FF7F);
    margin: 10px auto;
}

p {
    font-size: 1rem;
    color: #555;
    text-align: justify;
    margin-bottom: 15px;
}

ul {
    list-style-type: none;
    padding: 0;
    margin: 20px 0;
}

li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
}

li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #00FF7F;
    font-size: 1.2rem;
}

a {
    color: #4B0082;
    text-decoration: none;
    border-bottom: 1px dashed #4B0082;
    transition: color 0.3s ease, border-color 0.3s ease;
}

a:hover {
    color: #00FF7F;
    border-color: #00FF7F;
}

.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.item {
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, background 0.3s ease;
}

.item:hover {
    transform: scale(1.05);
    background: linear-gradient(135deg, #4B0082, #00FF7F);
    color: #fff;
}

.item img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 10px;
}

.code-block {
    background: #2d2d2d;
    color: #fff;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    margin: 20px 0;
}

.code-block pre {
    margin: 0;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .container {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

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

    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.3rem;
    }

    .item {
        padding: 15px;
    }
}