:root{color-scheme:light dark;font-family:system-ui,sans-serif}body{margin:0}.page{max-width:560px;margin:0 auto;padding:16px}.banner{display:flex;flex-direction:column;gap:4px;padding:12px;border-radius:8px;font-size:14px}.banner.ok{background:#e7f6ec;color:#145c2c}.banner.bad{background:#fdecec;color:#8a1c1c}.form{display:grid;gap:8px}.form input,.form button{padding:10px;font-size:16px}.list{padding-left:20px}.muted{opacity:.6}