body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: Arial, Helvetica, sans-serif;
    background: linear-gradient(#1a2c30, #1c8a9d);
    color: white;
    text-align: center;
    position: relative;
}

h1 {
    font-size: 40px;
    margin: 10px 0;
    color: #F7B733;
}

main {
    flex: 1;
    padding: 20px;
}

.description {
    max-width: 600px;
    margin: auto;
}

.btn {
    display: inline-block;
    margin: 10px;
    padding: 15px 30px;
    background-color: #F7B733;
    color: black;
    text-decoration: none;
    font-weight: bold;
    border-radius: 8px;
    border: 2px solid black;
}

.btn:hover {
    background-color: #b8831a;
    border: 2px solid black;
}

 /* nv1 */
.btn1 {
    display: inline-block;
    margin: 10px;
    padding: 15px 30px;
    background-color: #F7B733;
    color: black;
    text-decoration: none;
    font-weight: bold;
    border-radius: 8px;
    border: 2px solid black;
}

.btn1:hover {
    background-color: #b8831a;
    border: 2px solid black;
}

/* nv2 */
.btn2 {
    display: inline-block;
    margin: 10px;
    padding: 15px 30px;
    background-color: #eb8f39;
    color: black;
    text-decoration: none;
    font-weight: bold;
    border-radius: 8px;
    border: 2px solid black;
}

.btn2:hover {
    background-color: #aa6c32;
    border: 2px solid black;
}

/* nv3 */
.btn3 {
    display: inline-block;
    margin: 10px;
    padding: 15px 30px;
    background-color: #b86a25;
    color: black;
    text-decoration: none;
    font-weight: bold;
    border-radius: 8px;
    border: 2px solid black;
}

.btn3:hover {
    background-color: #79421d;
    border: 2px solid black;
}

/* nv4 */
.btn4 {
    display: inline-block;
    margin: 10px;
    padding: 15px 30px;
    background-color: #ad391c;
    color: black;
    text-decoration: none;
    font-weight: bold;
    border-radius: 8px;
    border: 2px solid black;
}

.btn4:hover {
    background-color: #802812;
    border: 2px solid black;
}

/* nv5 */
.btn5 {
    display: inline-block;
    margin: 10px;
    padding: 15px 30px;
    background-color: #ad2323;
    color: black;
    text-decoration: none;
    font-weight: bold;
    border-radius: 8px;
    border: 2px solid black;
}

.btn5:hover {
    background-color: #7e1717;
    border: 2px solid black;
}

.footer {
    width: 100%;
    height: 240px;
    background-image: url("./img/platform.png");
    background-repeat: repeat-x;
    background-position: bottom;
    background-size: auto 120px;
}