* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: white;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 50px;
}

.container {
    width: 100%;
    max-width: 800px;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 40px;
    font-size: 28px;
}

.timestamp {
    background: #f5f5f5;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
}

.timestamp > div:first-child {
    color: #666;
    margin-bottom: 10px;
}

.timestamp-value {
    color: #333;
    font-weight: bold;
    font-size: 18px;
}

.loading {
    color: #999;
    font-style: italic;
}