body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
}

header {
    background-color: #4a90e2;
    color: white;
    padding: 2rem 1rem;
    text-align: center;
}

header h1 {
    margin-bottom: 0.5rem;
}

main {
    padding: 2rem 1rem;
    max-width: 1000px;
    margin: auto;
}

section {
    margin-bottom: 2rem;
}

h2 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

h3 {
    margin-top: 1rem;
}

ul,
ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 1rem;
}


@media (max-width: 420px) {
    body {
        font-size: 14px;
        padding: 0.5rem;
    }

    header {
        padding: 1.5rem 0.5rem;
    }

    main {
        padding: 1rem 0.5rem;
    }
}

.back-home-container {
    text-align: center;
    margin: 40px 0;
}

.back-home-btn {
    display: inline-block;
    background: linear-gradient(135deg, #4a90e2, #7b42f6);
    color: #fff;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.back-home-btn:hover {
    background: linear-gradient(135deg, #7b42f6, #4a90e2);
    transform: translateY(-3px);
}

@media (max-width: 420px) {
    .back-home-btn {
        font-size: 1rem;
        padding: 10px 22px;
    }
}