* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #fff;
    font-family: system-ui, sans-serif;
    padding: 1rem;
}

.card {
    text-align: left;
    max-width: 480px;
    width: 100%;
    padding: 2rem 1.5rem;
    position: relative;
    z-index: 10;
}

.card h2 {
    font-size: 2rem;
    font-weight: 400;
    color: #000;
    margin-bottom: 1.25rem;
}

.card .sub {
    font-size: .95rem;
    color: #000;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.card .sub .blocked {
    display: block;
}

.card .btn {
    display: inline-block;
    background: transparent;
    color: #000;
    border: 2px solid #000;
    padding: .6rem 2.2rem;
    font-size: 1rem;
    cursor: pointer;
    transition: background .2s, color .2s;
    font-family: inherit;
}

.card .btn:hover:not(:disabled) {
    background: #000;
    color: #fff;
}

.card .btn:disabled {
    opacity: .4;
    cursor: not-allowed;
}

.card .btn-wrap {
    margin-top: .25rem;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: url('$.png');
    background-size: cover;
    background-position: center;
    z-index: 99999;
    pointer-events: auto;
}

@media (max-width: 400px) {
    .card h2 {
        font-size: 1.75rem;
    }
    .card .sub {
        font-size: .9rem;
    }
    .card .btn {
        padding: .5rem 1.8rem;
        font-size: .95rem;
    }
}