.chess-container-row {
    min-height: 540px;
}

#visul-container.chess-visualization {
    position: relative;
    inset: auto;
    width: 100%;
    height: 540px;
    min-height: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(24px, 6vw, 88px);
    padding: 28px;
}

.chess-board {
    width: min(460px, 62vh, 58vw);
    aspect-ratio: 1;
    display: grid;
    grid-template-columns: repeat(var(--board-size), minmax(0, 1fr));
    grid-template-rows: repeat(var(--board-size), minmax(0, 1fr));
    border: 5px solid #14211f;
    box-shadow: 0 14px 34px rgba(20, 33, 31, 0.16);
}

.chess-square {
    min-width: 0;
    display: grid;
    place-items: center;
    color: #14211f;
    font-size: clamp(18px, 4vw, 42px);
    line-height: 1;
    user-select: none;
}

.chess-square.is-light {
    background: #e7eadf;
}

.chess-square.is-dark {
    background: #6e8a80;
}

.chess-square.is-current {
    background: #d8f36a;
    box-shadow: inset 0 0 0 3px #14211f;
}

.chess-square.is-rejected {
    background: #f0745c;
}

.chess-square.is-solution {
    background: #b9efc5;
}

.chess-square.has-queen {
    color: #14211f;
    text-shadow: 0 1px 0 rgba(255, 255, 255, 0.45);
}

.chess-step-panel {
    width: min(300px, 34vw);
    color: #14211f;
}

.chess-step-panel h2 {
    margin: 0 0 12px;
    font: 600 12px var(--visul-mono);
    text-transform: uppercase;
}

.chess-step-panel p {
    margin: 0;
    font-size: 17px;
    line-height: 1.5;
}

.queen-settings h1,
.knight-settings h1 {
    margin-bottom: 16px;
    font-size: 21px;
}

.queen-size-help {
    margin-top: 8px;
    color: var(--visul-muted);
    font-size: 12px;
}

.queen-step-status {
    max-width: 540px;
    min-height: 48px;
    margin: 20px auto 0;
    color: #344640;
    font-size: 14px;
    line-height: 1.5;
    text-align: left;
}

.chess-square.has-knight {
    font: 600 clamp(13px, 2.4vw, 22px) var(--visul-mono);
}

.chess-square.has-knight.is-current {
    font: 42px/1 var(--visul-display);
}

@media (max-width: 760px) {
    #visul-container.chess-visualization {
        height: auto;
        min-height: 0;
        flex-direction: column;
        gap: 20px;
        padding: 24px 12px;
    }

    .chess-board {
        width: min(460px, 88vw);
    }

    .chess-step-panel {
        width: min(460px, 88vw);
    }

    .chess-step-panel p {
        font-size: 14px;
    }
}