.game-board {
    width: 100%;
    aspect-ratio: 1;
    position: relative;
    overflow: hidden;
    border-radius: 30px;
    background: linear-gradient(145deg, #ffffff, #eef2f7);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .9), 0 20px 50px rgba(40, 60, 90, .12);
}

.board-dots {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 1;
}

.dot {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--dot);
    transform: translate(-50%, -50%);
}

.svg-paths {
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
}

.arrow-path {
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.arrow-group {
    position: absolute;
    z-index: 5;
    cursor: pointer;
    user-select: none;
    touch-action: manipulation;
    transition: filter 0.2s;
}

.arrow-group:hover {
    filter: drop-shadow(0 5px 5px rgba(36, 111, 229, .22));
}

.arrow-shape {
    stroke-width: 15;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: stroke 0.2s, filter 0.2s;
}

.arrow-group.hint-active .arrow-shape {
    stroke: #f39c12 !important;
    filter: drop-shadow(0 0 10px #f39c12);
}