body {
    font-family: Arial, sans-serif;
    background: #0b1220;
    color: white;
    margin: 0;
}

/* layout */
.container {
    text-align: center;
    padding: 15px;
    max-width: 900px;
    margin: auto;
}

/* title */
h1 {
    font-size: 22px;
    margin-bottom: 15px;
}

/* cards */
.card {
    background: #111827;
    padding: 15px;
    margin-bottom: 12px;
    border-radius: 12px;
}

/* make header responsive */
.card h3 {
    margin: 0;
    font-size: 16px;
}

/* status text */
.card p {
    margin: 5px 0;
    font-size: 14px;
}

/* bars */
.bar-container {
    display: flex;
    gap: 2px;
    margin-top: 10px;
    overflow-x: auto;   /* 👈 important for mobile */
    padding-bottom: 5px;
}

.bar {
    min-width: 5px;
    height: 20px;
    border-radius: 2px;
    flex-shrink: 0;
}

.up {
    background: #22c55e;
}

.down {
    background: #ef4444;
}

/* footer */
footer {
    text-align: center;
    padding: 15px;
    font-size: 12px;
    color: #9ca3af;
    border-top: 1px solid #1f2937;
    margin-top: 20px;
}

/* 🔥 mobile tweaks */
@media (max-width: 600px) {

    h1 {
        font-size: 18px;
    }

    .card {
        padding: 12px;
    }

    .bar {
        min-width: 4px;
        height: 16px;
    }
}