/* Base styles, resets, and typography */
* { box-sizing: border-box; }
html, body { overflow-x: hidden; max-width: 100%; }
body {
    font-family: sans-serif;
    line-height: 1.6;
    margin: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
main { flex: 1; overflow-y: auto; display: block; }
.container { padding: 2rem; }