.robot-selection-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.robot-button-item {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    background-color: #495057;
    color: #ffffff;
    border: 2px solid #495057;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    font-size: 0.875rem;
    font-weight: 500;
    min-height: 36px;
    user-select: none;
}

.robot-button-item:hover {
    background-color: #5a6268;
    border-color: #5a6268;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.robot-button-input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.robot-button-text {
    display: inline-block;
}

.robot-button-check {
    display: none;
    font-size: 0.75rem;
    margin-left: 0.5rem;
}

/* Selected state */
.robot-button-item input:checked ~ .robot-button-text,
.robot-button-item input:checked ~ .robot-button-check {
    color: #ffffff;
}

.robot-button-item input:checked ~ .robot-button-check {
    display: inline-block;
}

.robot-button-item:has(.robot-button-input:checked),
.robot-button-input:checked + .robot-button-text {
    /* Fallback for browsers that don't support :has() */
}

/* Using a class-based approach for better browser support */
.robot-button-item.selected {
    background-color: var(--nachi-primary, #a01d22);
    border-color: var(--nachi-primary, #a01d22);
}

.robot-button-item.selected .robot-button-text,
.robot-button-item.selected .robot-button-check {
    color: #ffffff;
}

.robot-button-item.selected .robot-button-check {
    display: inline-block;
}