body {
    background-color: #151718;
    color: #fff;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    min-height: 100vh;
    align-items: center;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #151718;
    padding: 10px 20px;
    box-sizing: border-box;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    width: 120px;
}

.add-button {
    padding: 10px 20px;
    background-color: #5DC955;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

.cards-container {
    display: flex;
    flex-wrap: wrap;
    padding: 20px;
    width: 100%;
    max-width: 1200px;
    margin-top: 70px;
}

.unauthenticated {
    width: 100%;
    justify-content: center;
    text-align: center;
}

.card {
    background-color: #262A2B;
    padding: 20px;
    margin: 10px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    text-align: center;
    box-sizing: border-box;
}

.card img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin-bottom: 10px;
}

.card h2,
.card p {
    margin: 10px 0;
}

.status-indicator {
    height: 10px;
    width: 10px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 5px;
}

.open {
    background-color: #00FF00;
}

.connecting {
    background-color: #FFFF00;
}

.close {
    background-color: #FF0000;
}

.card .buttons {
    display: flex;
    justify-content: space-around;
    margin-top: 10px;
}

.button {
    padding: 5px 10px;
    background-color: #333;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 5px;
}

@media (min-width: 768px) {
    .card {
        width: calc(33.333% - 20px);
        margin: 10px;
    }
}

@media (max-width: 767px) {
    .card {
        width: calc(100% - 20px);
    }
}

.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.popup {
    background: #333;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.7);
    width: 80%;
    max-width: 600px;
    animation: fadeIn 0.3s;
}

.popup input,
.popup button {
    padding: 12px;
    margin-top: 15px;
    width: 100%;
    border-radius: 8px;
    border: none;
    box-sizing: border-box;
}

.popup input {
    background-color: #fff;
    color: #333;
}

.popup button {
    background-color: #4CAF50;
    color: white;
    cursor: pointer;
    font-size: 16px;
}

#qrcode {
    margin-top: 20px;
    display: none;
    width: 100%;
    max-width: 300px;
    /* Limit QR Code size */
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@media (min-width: 768px) {
    .card {
        width: calc(33.333% - 20px);
        margin: 10px;
    }
}

@media (max-width: 767px) {
    .card {
        width: calc(100% - 20px);
    }
}

.loader {
    display: none;
    margin-top: 10px;
}

.qr-popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.qr-popup {
    background: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
}

.qr-popup img {
    max-width: 100%;
    height: auto;
}

.qr-popup button {
    margin-top: 10px;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
}

.icon-button {
    cursor: pointer;
    font-size: 24px;
    color: #007bff;
    display: block;
    margin: 10px auto;
}

.icon-button:hover {
    color: #0056b3;
}