:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial}
body{margin:0;line-height:1.4;background:#f4f6f8;color:#111}
header{background:#222;color:#fff;padding:12px 18px}
header h1{margin:0;font-size:20px}
nav{margin-top:8px}
nav a{color:#9fd6ff;margin-right:12px;text-decoration:none}
main{padding:18px}
footer{padding:12px 18px;font-size:13px;color:#444}
#play-area{background:#fff;border:1px solid #ddd;padding:12px;border-radius:6px;max-width:720px}
pre#story{white-space:pre-wrap;background:#111;color:#dff;padding:12px;border-radius:6px;min-height:120px}
.choices button{margin-right:8px;padding:8px 12px;border-radius:6px;border:1px solid #bbb;background:#fff;cursor:pointer}