h1 {
    margin-top: 0;
}

form {
    display: block;
    position: relative;
}

.img-container {
    position: relative;
    padding: 0;
    margin: 0;
    border-radius: var(--radius-large);
    overflow: hidden;
}

.img-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, .7);
}

img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: var(--radius-large);
}

.img-overlay {
    position: absolute;
    display: block;
    width: 100%;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    text-align: center;
    color: var(--primary-white);
    z-index: 1;
}

.body .info {
    text-align: center;
    display: none
}

.body h2 {
    position: relative;
    margin-top: 0;
    margin-bottom: 1.5rem;
}

.body h2::after {
    content: '';
    position: absolute;
    height: .25rem;
    width: 10rem;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--blue-primary);
}

.body .description {
    margin-top: 0;
    margin-bottom: 1rem;
}

.body .controls {
    padding: 1rem;
}

.radio-group {
    margin: 0 0 1rem 0;
    text-align: center;
}

.radio-group .help-text {
    color: var(--grey-400)
}

#id_is_multiplayer,
#id_difficulty {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    border: 0;
    outline: 0;
    padding-bottom: 0;
    margin-bottom: .25rem;
}

#id_is_multiplayer,
#id_difficulty,
button[type='submit'] {
    font-size: .9rem;
}

#id_is_multiplayer > *,
#id_difficulty > * {
    position: relative;
    text-align: center;
}

#id_is_multiplayer > * {
    width: 175px;
}

#id_difficulty > * {
    width: 125px;
}

#id_is_multiplayer label {
    outline-color: var(--theme-info);
}

#id_is_multiplayer input:checked + label {
    background: var(--theme-info);
    color: var(--primary-white);
}

#id_difficulty input[value="easy"] + label {
    outline-color: var(--theme-success);
    color: var(--theme-success);
}

#id_difficulty input[value="easy"]:checked + label {
    background: var(--theme-success);
    color: var(--primary-white);
}

#id_difficulty input[value="moderate"] + label {
    outline-color: var(--theme-warning);
    color: var(--theme-warning);
}

#id_difficulty input[value="moderate"]:checked + label {
    background: var(--theme-warning);
    color: var(--primary-white);
}

#id_difficulty input[value="hard"] + label {
    outline-color: var(--theme-danger);
    color: var(--theme-danger);
}

#id_difficulty input[value="hard"]:checked + label {
    background: var(--theme-danger);
    color: var(--primary-white);
}

#id_is_multiplayer input:disabled + label {
    outline-color: var(--border-color);
    color: var(--border-color);
}

#id_is_multiplayer input:disabled:checked + label {
    background: var(--border-color);
    color: var(--primary-white);
}

.button-container {
    padding: 1rem;
    display: flex;
    justify-content: center;
}

button[type='submit'] {
    animation: pulse 3s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(var(--blue-primary-rgb), .7);
    }
    50% {
        box-shadow: 0 0 0 15px rgba(var(--blue-primary-rgb), 0);
    }
}

@media (min-width: 768px) {

    form {
        display: flex;
        gap: 1rem;
        margin-top: 2rem;
        margin-bottom: 1rem;
    }

    .img-container {
        flex: 1;
        min-width: 200px;
        max-width: 400px;
    }

    .img-container::after {
        content: none;
    }

    .img-overlay {
        display: none;
    }

    .body {
        flex: 2;
    }

    .body .info {
        display: block;
    }

}