.fluent-card {
    max-width: 530px;
    width: 100%;
    margin: 24px auto 0;
    padding: 1rem;
    background-color: rgba(0, 0, 0, .2);
    border: 1px solid rgba(255, 255, 255, .15);
    border-radius: 2px;
    box-shadow: 0 1px 5px rgba(0, 0, 0, .1);
    text-align: center;
    color: whitesmoke;
}

.fluent-card .card-body {
    padding: 0;
}

.fluent-title {
    color: whitesmoke;
    margin: 0 0 16px;
    text-align: center;
}

.fluent-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.fluent-form .form-group {
    width: 100%;
    margin-bottom: 0;
    text-align: center;
}

.fluent-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: whitesmoke;
    margin-bottom: 6px;
    text-align: center;
}

.fluent-input {
    display: block;
    width: 100%;
    max-width: 260px;
    height: 36px;
    margin: 0 auto;
    padding: 0 12px;
    font-size: 14px;
    text-align: center;
    color: #242424;
    background: #ffffff;
    border: 1px solid rgba(255, 255, 255, .25);
    border-radius: 2px;
    outline: none;
    transition: border-color 120ms ease, box-shadow 120ms ease;
}

.fluent-input:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 1px rgba(0, 123, 255, .35);
}

.fluent-error {
    min-height: 16px;
    font-size: 12px;
    color: #ff6b6b;
    text-align: center;
}

.fluent-button.btn {
    align-self: center;
    min-width: 180px;
    font-size: large;
}

#code-input {
    font-size: large;
}