body {
    font-family: 'Courier New', Courier, monospace;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background-color: #ffd700;
    color: black;
    font-size: 30px;
    padding: 20px 50px;
    text-align: center;
    animation: fadeIn 1s ease-out;
}

.intro {
    font-size: 45px;
    font-weight: 600;
    color: #444;
    padding: 20px 50px;
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.description {
    font-size: 28px;
    color: #666;
    padding-left: 50px;
    animation: fadeInUp 1s ease-out 0.5s;
}

.button {
    text-align: center;
    margin-top: 20px;
    animation: fadeInUp 1s ease-out 1s;
}

.btn {
    display: inline-block;
    color: #fff;
    background-color: #ffd700;
    border: 2px solid #ffd700;
    padding: 10px 30px;
    font-weight: 700;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn:hover {
    background-color: #f0e68c;
    border-color: #f0e68c;
}

footer {
    background-color: #ffd700;
    color: black;
    font-size: 18px;
    padding: 20px;
    text-align: center;
    position: relative;
    bottom: 0;
    width: 100%;
    animation: fadeInUp 1s ease-out 1.5s;
}

pre {
    max-width: 100%;
    margin: 20px auto;
    padding: 20px;
    background-color: #282c34;
    color: #f8f8f2;
    border-radius: 8px;
    overflow-x: auto;
    box-shadow: 0 0 12px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 1s ease-out;
}

code {
    display: block;
    font-family: 'Courier New', monospace;
    font-size: 16px;
    line-height: 1.5;
    white-space: pre-wrap;
    tab-size: 4;
    padding: 12px;
    background-color: #1e1e1e;
    color: #dcdcdc;
    border-radius: 6px;
}

ul {
    line-height: 1.8;
    padding-left: 20px;
}

h2 {
    color: #444;
    animation: fadeInUp 1s ease-out 2s;
}

.container {
    max-width: 1200px;
    color: #444;
    margin: 0 auto;
    padding: 20px;
    font-weight: bold;
    font-size: 20px;
    text-align: left;
}

@keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 5;
    }
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(0.5rem);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}