.flip-cards {
    display: flex;
    flex-direction: column;
    width: 100%;
    box-sizing: border-box;
}

.flip-card {
    background: transparent;
    width: 100%;
    max-width: 100%;
    height: 220px;
    perspective: 1000px;
}

.flip-card-inner {
    position: relative;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #fff;
    border-top: 2px solid var(--accent);
    border-bottom: 2px solid var(--accent);
}

.flip-card-front h2,
.flip-card-front p {
    background: rgba(40, 40, 40, 0.75);
    color: #fff;
    padding: 0.5em 1em;
    border-radius: 6px;
    margin: 0 1em 0 1em;
    display: inline-block;
    box-sizing: border-box;
}

.flip-card-hover-hint {
    position: absolute;
    top: 8px;
    right: 12px;
    font-size: 0.9em;
    color: var(--accent);
    z-index: 2;
}

.flip-card-back {
    transform: rotateY(180deg);
    background: #f5f5f5;
    font-size: 13px;
    word-break: break-word;
}

.flip-card-front p,
.flip-card-back p {
    text-align: left;
    font-size: inherit;
    margin-left: 1rem;
    margin-right: 1rem;
}

.flip-card-back p:nth-of-type(2) {
    background: #3e6081;
    padding: 0.5em 1em;
    border-radius: 6px;
    margin-top: 0.7em;
    margin-left: 0;
    margin-right: 0;
    width: 100%;
    box-sizing: border-box;
    color: #fff;
    flex: 1 1 auto;
    align-self: stretch;
    display: flex;
    align-items: flex-start;
}

@media (min-width: 700px) {
    .flip-card {
        flex: 1;
    }
    
    .flip-cards {
        flex-direction: row;
    }

    .flip-card-front,
    .flip-card-back {
        border-top: none;
        border-bottom: none;
        border-left: 2px solid var(--accent);
        border-right: 2px solid var(--accent);
    }

    .flip-card-back {
        font-size: 14px;
    }
}