body {
    font-family: 'Arial', sans-serif;
    background-color: #1b1b1b;
    color: #ffffff;
}

.dashboard {
    background: #292929;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
}

footer {
    width:100%;

    margin-top: 50px;
    font-size: 1.0rem;
    background-color: #222222;
    position: fixed;
    bottom: 0; 

}

.mt-10 {
    margin-top: 190px;     
}

.card-bg{
    background-color: #222222;
}

.grid-container {
    width: 450px;
    height: 450px;
    position: relative;
    background: linear-gradient(to right, #ccc 1px, transparent 1px),
                linear-gradient(to bottom, #ccc 1px, transparent 1px);
    background-size: 20px 20px; 
    border: 1px solid #00000073; 
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto; 
 
    border: 1px solid rgba(255, 255, 255, 0.8); /* 境界線を調整 */
    background-color: rgba(0, 0, 0, 0.05);
    
}

.robot-icon {
    width: 15px; 
    height: 15px;
    background-color: rgba(255, 0, 0, 0.42);
    border-radius: 50%;
    position: relative;
    transform: translate(-50%, -50%);
    pointer-events: none;
    display: none; 
}

.status-indicator {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 8px;
}

.status-indicator.non-connect {
    background-color: red;
}

.status-indicator.connecting {
    background-color: green;
}