/* Design tokens — change a value here and every rule below follows. */
:root {
    --bg-page: rgb(222, 222, 222);
    --bg-window: rgb(41, 41, 41);
    --bg-titlebar: #333;
    --text-default: #000;
    --text-inverse: #fff;
    --link: #00bfff;
    --link-hover: #66d9ff;
    --focus-ring: #ffcc00;
    --radius-window: 20px;
    --radius-nav: 12px;
    --shadow-1: 0 3px 8px rgba(0, 0, 0, 0.1);
    --shadow-2: 0 6px 12px rgba(0, 0, 0, 0.25);
    --bottom-nav-h: 60px;
}

* {
    box-sizing: border-box
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #002e5c;
    color: #e2e8f0;
    min-height: 100vh;
    display: grid;
    place-items: center
}

main {
    max-width: 800px;
    padding: 2rem;
    text-align: center
}

h1 {
    font-size: 2.5rem;
    margin: 0 0 1rem;
    color: #9bcdec
}

h2 {
    font-size: 1.5rem;
    font-family: 'Courier New', Courier, monospace;
    margin: 0 0 1rem;
    color: #ffc845
}

h3 {
    font-size: 1.1rem;
    margin: 0 0 1rem;
    color: #f2f5f7
}

p {
    line-height: 1.6
}

/* -------------------------------------------------------------------------
   Utilities
   ------------------------------------------------------------------------- */

.blue-link {
    color: var(--link);
    text-decoration: underline dotted
}

.blue-link:visited {
    color: var(--link);
}

.blue-link:hover {
    color: var(--link-hover);
    text-decoration: underline;
    text-decoration: #ffc845 wavy underline;
}

.muted {
    color: #94a3b8;
    font-size: .9rem;
    margin-top: 2rem
}

.muted-lg {
    color: #94a3b8;
    font-size: 1.125rem;
    margin-top: 2rem
}