.dock {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    padding: 10px;
    border-radius: 20px;
    background: #000000;
    border: 1px solid #222222;
    position: fixed;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    will-change: transform, width, height;
    transition: background 0.2s ease;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(34, 34, 34, 0.3);
}

.dock-item {
    --scale: 1;
    --size: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--size);
    height: var(--size);
    border-radius: 12px;
    background: #000000;
    border: 1px solid #222222;
    color: #FFFFFF;
    cursor: pointer;
    outline: none;
    padding: 0;
    transform-origin: bottom center;
    transform: scale(var(--scale)) translateY(0);
    transition: transform 0.1s cubic-bezier(0.1, 0.7, 0.3, 1),
                background 0.15s ease,
                border-color 0.15s ease;
    position: relative;
    will-change: transform;
    margin: 0 2px;
}

.dock-item:hover {
    background: #1A1A1A;
    border-color: #444444;
}

.dock-icon {
    width: 55%;
    height: 55%;
    object-fit: contain;
    filter: brightness(0) invert(1);
    transition: filter 0.15s ease;
}

.dock-item::before,
.dock-item::after {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease 0.1s, visibility 0s linear 0.3s, transform 0.2s ease 0.1s;
}

.dock-item::before {
    content: attr(data-label);
    bottom: calc(100% + 10px);
    padding: 6px 10px;
    background: #101010;
    color: #D0D0D0;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0,0,0,0.6);
    z-index: 10;
    border: 1px solid #333333;
}

.dock-item::after {
    content: '';
    bottom: calc(100% + 5px);
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid #101010;
    z-index: 9;
}

.dock-item:hover::before,
.dock-item:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-3px);
    transition-delay: 0.2s;
}