:root {
    --sky-blue: #87ceeb;
    --sky-blue-dark: #55b8dd;
    --sky-blue-light: #dff5ff;
    --text: #111;
    --gray: #666;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: white;
    color: var(--text);
    font-family: Helvetica, Arial, system-ui, sans-serif;
}

button,
input,
a {
    font: inherit;
}

button {
    cursor: pointer;
}