body {
    font-family: Arial, sans-serif;
    background: #f2f4f7;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 500px;
    margin: 40px auto;
    background: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

h1 {
    margin-bottom: 5px;
}

.subtitle {
    color: #666;
}

.status {
    margin: 25px 0;
    font-weight: bold;
}

#gpsStatus {
    color: #777;
}

.data-box {
    display: grid;
    gap: 15px;
}

.data {
    background: #f7f7f7;
    padding: 15px;
    border-radius: 10px;
}

.data h3 {
    margin: 0 0 8px;
}

.data p {
    font-size: 20px;
    font-weight: bold;
    margin: 0;
}

button {
    margin-top: 25px;
    padding: 15px 30px;
    border: none;
    border-radius: 8px;
    background: #d32f2f;
    color: white;
    font-size: 16px;
    cursor: pointer;
}

button:hover {
    background: #b71c1c;
}

#message {
    margin-top: 20px;
    color: #555;
}