/* Insert beautiful CSS here */
body {
    font-family: Arial, sans-serif;
    background-color: #ffffff;
    color: #333;
    margin: 0;
    padding: 0;
}

h1 {
    text-align: center;
    font-size: 2.5em;
    margin-top: 0;
}

p {
    padding: 0;
    margin: 0;
}

@media (max-width: 500px) {
    h1 {
    text-align: center;
    font-size: 2.0em;
    margin-top: 0;
}
}

nav {
    background-color: #000000;
    padding: 0;
    margin: 0;
}

#app-list {
    list-style-type: none;
    padding: 0;
    margin: 10px;
}

#app-list li {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 0.6em;
    margin: 0;
    margin-bottom: 0.5em;
    font-size: 1.5em;
    max-width: 400px;
    box-shadow: 0 0px 12px rgba(0, 0, 0, 0.08);
    margin-left: auto;
    margin-right: auto;
    transition: box-shadow 0.3s ease-out, background-color 0.3s ease-out;
}

@media (hover: hover) {
#app-list li:hover {
    box-shadow: 0 0px 50px rgba(0, 0, 0, 0.08);
    background-color: #000000;
    color: #ffffff;
}
}

.app-title {
    margin-top: 0;
    margin-bottom: 0;
}

.app-description {
    margin-top: 0;
    margin-bottom: 0;
    font-size: medium;
}

/*  App nav */

.app-nav-ul {
    display: flex;
    list-style-type: none;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    padding: 10px;
    margin: 0;
    margin-left: 10px;
    margin-right: 10px;
}

.app-nav-li {
    margin-left: 5px;
    background-color: #000000;
    color: #ffffff;
    border-radius: 12px;
    padding: 0.6em;
    box-shadow: 0 0px 12px rgba(0, 0, 0, 0.08);
    transition: box-shadow 0.3s ease-out, background-color 0.3s ease-out;
}

.app-nav-li img {
    filter: brightness(0) invert(1);
}

.app-nav-a {
    text-decoration: none;
    color: inherit;
    display: flex;
    align-items: center;
    margin-left: 0;
    margin-right: 0;
}

.app-nav-p {
    margin: 0px;
    margin-left: 10px;
}

.header-container {
    margin: 3em;
    display: flex;
    align-items: center;
    justify-content: center;
}