:root{color-scheme:dark;font-family:-apple-system,BlinkMacSystemFont,Arial,sans-serif;background:#080b11;color:#f5f7fa;font-size:20px}*{box-sizing:border-box}body{margin:0;padding:10px}main{max-width:420px;margin:auto}h1{font-size:24px;margin:4px 0 12px}h2{font-size:24px;margin:8px 0}p{font-size:20px;line-height:1.3;margin:10px 0}.muted{color:#b7c0cc}.card{background:#19212e;border:1px solid #354050;border-radius:12px;padding:10px;margin:10px 0}.btn{display:flex;align-items:center;justify-content:center;text-align:center;min-height:60px;width:100%;border:1px solid #536175;border-radius:12px;background:#253348;color:#fff;font:600 20px -apple-system,Arial,sans-serif;text-decoration:none;padding:8px;margin:8px 0;cursor:pointer}.btn:active{background:#425776}.secondary{min-height:44px;font-size:18px;background:#18212e}.row{display:flex;gap:6px;flex-wrap:wrap}.row .btn{flex:1 1 28%;min-width:70px;margin:3px 0;min-height:44px}.selected{background:#1c6580;border-color:#8be0ff}.result{font-size:64px;font-weight:800;text-align:center;margin:8px 0;line-height:1.1}.stats{font-size:22px;font-weight:700}.tiny{font-size:16px}.status{font-size:18px;min-height:22px}a:focus-visible,button:focus-visible{outline:3px solid #fff;outline-offset:2px}