header {
    background-color: #b33c00;
    color: #f5deb3;
    padding: 1em 0;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

main {
    padding: 2em;
    text-align: center;
}

h2 {
    color: #f5deb3;
    margin-bottom: 0.5em;
}

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

ul li {
    background-color: #b33c00;
    margin: 0.5em 0;
    padding: 1em;
    border-radius: 6px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    color: #f5deb3;
}

footer {
    background-color: #b33c00;
    color: #f5deb3;
    padding: 1em;
    text-align: center;
    font-size: 0.9em;
}

p {
    color: #f5deb3;
    font-size: 1em;
    line-height: 1.6;
    margin: 1em 0;
}

a {
    color: #f5deb3;
    text-decoration: none;
}

a:hover {
    color: #ff6347;
    text-decoration: underline;
}

#about {
    background-color: #3e3e3e;
    padding: 2em;
    border-radius: 8px;
    margin: 2em 0;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

#features {
    background-color: #2f4f4f;
    padding: 2em;
    border-radius: 8px;
    margin: 2em 0;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.intro-section {
    background-color: #8b0000;
    padding: 4em 0;
    color: #f5deb3;
    font-size: 2em;
    border-radius: 8px;
    margin: 1em 0;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
}

@media screen and (max-width: 320px) {
    header {
        padding: 0.8em 0;
    }
    .intro-section {
        font-size: 1.5em;
        padding: 2em 0;
    }
    #about, #features {
        padding: 1.5em;
    }
    p {
        font-size: 0.9em;
    }
    ul li {
        padding: 0.8em;
    }
}

@media screen and (max-width: 375px) {
    .intro-section {
        font-size: 1.8em;
        padding: 3em 0;
    }
    #about, #features {
        padding: 1.8em;
    }
    p {
        font-size: 0.95em;
    }
    ul li {
        padding: 0.9em;
    }
}

@media screen and (max-width: 414px) {
    .intro-section {
        font-size: 1.9em;
        padding: 3.5em 0;
    }
    #about, #features {
        padding: 2em;
    }
    p {
        font-size: 1em;
    }
}

@media screen and (max-width: 480px) {
    header {
        padding: 1em 0;
    }
    .intro-section {
        font-size: 2em;
        padding: 4em 0;
    }
    #about, #features {
        padding: 2.2em;
    }
    p {
        font-size: 1.05em;
    }
    ul li {
        padding: 1em;
    }
}