body {
    font-family: system-ui, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px;
}

.title {
    font-size: 1.6rem;
    margin: 0.5rem 0;
}

.counter, .timer {
    font-size: 1.3rem;
    margin: 0;
}

#moves, #time {
    text-decoration: underline;
    font-weight: bold;
}

#puzzle {
    display: grid;
    grid-template-columns: repeat(5, 100px);
    grid-template-rows: repeat(5, 100px);
    gap: 3px;
    margin-top: 20px;
}

.tile {
    width: 100px;
    height: 100px;
    object-fit: cover;
    cursor: pointer;
    border-radius: 6px;
    background: #111;
    transition: transform 0.15s ease;
}

.tile:hover {
    transform: scale(1.03);
    outline: 5px #111;
}

.empty {
    background: none;
    cursor: default;
    visibility: hidden;
}