* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    width: 100%;
    min-height: 100%;
}

body {
    font-family: Arial, "Noto Sans JP", sans-serif;
    background-color: #000;
}

.monitor {
    position: relative;
    width: 100%;
    min-height: 100vh;

    background-image: url("ship.png");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;

    overflow: hidden;
}

.monitor-title {
    position: relative;
    z-index: 2;

    margin: 0;
    padding-top: 35px;

    text-align: center;
    font-size: 28px;
    font-weight: bold;
    color: #000;
}

.cards {
    position: relative;
    z-index: 2;

    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;

    width: 70%;
    margin-top: 25px;
}

.data-card {
    background: rgba(255, 255, 255, 0.95);
    border: 2px solid #111;

    padding: 8px 10px;
    text-align: center;
}

.data-label {
    color: #0070c0;
    font-size: 24px;
    font-weight: bold;
    line-height: 1.1;

    white-space: nowrap;
}

.data-row {
    display: flex;
    align-items: baseline;
    justify-content: flex-end;

    gap: 4px;
    margin-top: 4px;
}

.data-value {
    color: #000;
    font-size: 34px;
    font-weight: bold;
    line-height: 1;
}

.data-unit {
    color: #000;
    font-size: 20px;
    font-weight: bold;
}