.card-deck {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    grid-gap: .5rem;
}

.card-deck .card {
    max-width: 320px;
    margin: auto;
    border: 0;
    background: none;
}

.btn-primary {
    background-color: #375a7f;
    border-color: #375a7f;
}
.btn-primary:hover, .btn-primary:focus, .btn-primary:not(:disabled):not(.disabled):active {
    background-color: #2b4764;
    border-color: #28415b;
}

.form-control:focus {
    background-color: #fff;
    border-color: #739ac2;
    outline: 0;
}
.form-control:focus, .btn-primary:focus, .btn-primary:not(:disabled):not(.disabled):active:focus {
    -webkit-box-shadow: 0 0 0 0.15rem rgba(115,154,194,0.5);
    box-shadow: 0 0 0 0.15rem rgba(115,154,194,0.5);
}

.form-control:invalid {
    box-shadow: 0 0 0 0;
}

h1 { color: #ccc; margin-bottom: 5rem; }
.emoj { font-family: apple color emoji, segoe ui emoji, noto color emoji, android emoji, emojisymbols, emojione mozilla, twemoji mozilla, segoe ui symbo; }
h1 .fa-btc { color: #FF9900 }
.shesek { color: #fff !important }
.code { color: #00bc8c !important }
.fa-chevron-right { font-size: 0.7em }


@media (max-width: 540px) {
    h1 { font-size: 2rem }
}
@media (max-width: 465px) {
    h1 { font-size: 1.7rem }
}
@media (max-width: 390px) {
    h1 { font-size: 1.5rem }
}