/* base.css */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background: #f1f5f9;
    color: #0f172a;
}

h1 {
    font-size: 28px;
    margin-bottom: 20px;
}