body {
    background-color: var(--bs-light);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    overflow-x: hidden;
}
.box {
    background-color: #fff;
    width: 100%;
    max-width: 375px;
    border-radius: 10px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 5px 10px 0 rgba(0,0,0,0.1);
}
.header {
    background-color: var(--primary);
    color: #fff;
    text-align: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
}
.header i {
    position: absolute;
    left: -10px;
    bottom: -20px;
    font-size: 6rem;
    color: rgba(255, 255, 255, 0.08);
}
.header h2 {
    font-size: 1.8rem;
    margin: 0;
    font-weight: bold;
    letter-spacing: 1px;
}
.body {
    padding: 30px 20px 25px;
}
.login-btn {
    font-weight: bold;
}
.login-btn:active {
    opacity: .5 !important;
}
@media screen and (max-width: 680px) {
    .box {
        max-width: 100%;
        min-height: 100vh;
        border-radius: 0;
    }
}