.turn-bar-vertical {
    grid-column: 2;
    width: 18px;
    min-width: 18px;
    max-width: 18px;
    height: 100vh;
    min-height: 0;

    display: flex;
    align-items: center;
    justify-content: center;

    color: #f4f7ff;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.4px;

    position: relative;
    overflow: hidden;
    user-select: none;

    border-left: 1px solid rgba(255,255,255,0.08);
    border-right: 1px solid rgba(255,255,255,0.08);
    box-sizing: border-box;
}



.turn-bar-active {
    background: linear-gradient(
            180deg,
            rgba(110, 255, 160, 0.22) 0%,
            rgba(70, 220, 120, 0.42) 50%,
            rgba(110, 255, 160, 0.22) 100%
    );
    box-shadow:
            inset 0 0 10px rgba(120, 255, 170, 0.14),
            0 0 8px rgba(70, 220, 120, 0.18);
}

.turn-bar-active::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(120, 255, 170, 0.12);
    opacity: 0.65;
    animation: turnBarPulseOpacity 1.6s ease-in-out infinite;
    pointer-events: none;
}

.turn-bar-active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 60px;
    background: linear-gradient(
            180deg,
            rgba(255,255,255,0) 0%,
            rgba(255,255,255,0.18) 50%,
            rgba(255,255,255,0) 100%
    );
    transform: translateY(-100%);
    animation: turnBarSweepVertical 2.2s linear infinite;
    pointer-events: none;
}

.turn-bar-inactive {
    background: rgba(140, 35, 35, 0.92);
    box-shadow: inset 0 0 8px rgba(0,0,0,0.25);
}

@keyframes turnBarPulseOpacity {
    0% { opacity: 0.35; }
    50% { opacity: 0.75; }
    100% { opacity: 0.35; }
}

@keyframes turnBarSweepVertical {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(calc(100vh + 60px)); }
}