.board {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 20px 0 28px;
    align-items: center;
    overflow-x: auto;
    padding: 4px;
}

.word-row {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: nowrap;
}

.tile {
    width: 68px;
    height: 68px;
    border: 2px solid;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    text-transform: uppercase;
    transition: all 0.12s cubic-bezier(0.2, 0.9, 0.4, 1.1);
    flex-shrink: 0;
}

@media (max-width: 700px) {
    .tile {
        width: 45px !important;
        height: 45px !important;
        font-size: 1.3rem !important;
    }
}

@media (max-width: 500px) {
    .tile {
        width: 38px !important;
        height: 38px !important;
        font-size: 1.1rem !important;
    }
}

.md-input::placeholder {
    opacity: 0.7;
}