:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:#39362e;background:#faf7f1;--accent:#a34d25;--line:#e5ded2}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}a{color:inherit;text-underline-offset:4px}button:focus-visible,a:focus-visible,textarea:focus-visible{outline:3px solid #315b79;outline-offset:4px}header{max-width:1200px;margin:auto;padding:26px 30px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font-size:22px;font-weight:800;letter-spacing:-1px;text-decoration:none;color:#1760a3}.brand span{font-size:9px;letter-spacing:2px;margin-left:10px;color:#625e53}nav{display:flex;align-items:center;gap:20px;font-size:12px}nav a{text-decoration:none}nav button{width:34px;height:34px;border:1px solid #c4bba9;border-radius:50%;background:none;color:#625e53}main{max-width:650px;margin:42px auto;padding:0 24px}.intro{text-align:center}.eyebrow{font-size:9px;letter-spacing:2px;font-weight:700;color:#7b573e}.intro h1{font-size:clamp(38px,7vw,55px);font-weight:700;letter-spacing:-3px;margin:12px 0}.intro h1 span{color:var(--accent)}.intro>p:last-child{font-size:13px;line-height:1.9;color:#6f695d;margin-bottom:30px}.game{background:#fffefa;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:0 15px 50px #57402b05}.game-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}h2{font-size:12px;margin:0;font-weight:700}#date{font-size:10px;color:#716b60;margin:6px 0 0}.mode-switch{display:flex;padding:4px;gap:3px;background:#f1ece2;border-radius:8px}.mode-switch button{border:0;border-radius:5px;background:none;color:#635d51;padding:7px 12px;font-size:11px}.mode-switch button[aria-pressed=true]{background:#514a3a;color:white}.target{text-align:center;margin:30px 0 15px}.target>span{display:block;font-size:9px;font-weight:700;letter-spacing:3px;color:var(--accent)}.target strong{display:block;font-size:72px;line-height:1.2;font-weight:600;letter-spacing:-5px}.target p{font-size:11px;color:#716b60;margin:6px 0}#message{text-align:center;min-height:36px;font-size:11px;color:#6c5039;margin:12px 0}.numbers{display:flex;justify-content:center;gap:10px;min-height:84px}.number{flex:1;max-width:90px;min-width:0;min-height:76px;border:1.5px solid #d6c7ad;background:#f7eedf;border-radius:10px;font-size:clamp(18px,4vw,29px);font-weight:650;color:#664425;overflow-wrap:anywhere;padding:5px}.number[aria-pressed=true]{border-color:var(--accent);background:#a34d25;color:white;box-shadow:0 0 0 3px #a34d2520}.number:disabled{opacity:1}.operators{display:flex;justify-content:center;gap:12px;margin:22px 0}.operators button{width:49px;height:45px;border:1px solid #d4ccbe;background:#faf7f1;border-radius:7px;font-size:24px;color:#514a3a}.operators button[aria-pressed=true]{background:#514a3a;color:white;border-color:#514a3a}button:disabled{cursor:default;opacity:.45}.tools{display:flex;justify-content:center;gap:25px}.tools button,.game-bottom button{background:none;border:0;font-size:11px;color:#755236;padding:8px}.history{border-top:1px solid var(--line);margin-top:22px;padding-top:16px;min-height:105px}.history h3{font-size:10px;margin:0 0 12px;color:#6b6254}.history ol{padding:0 0 0 22px;margin:0;font-size:12px;line-height:2;color:#4f4a3e}.history>p{font-size:11px;color:#7a7264}.game-bottom{border-top:1px solid var(--line);padding-top:10px;margin-top:16px;display:flex;gap:8px;justify-content:space-between;flex-wrap:wrap}.game-bottom button[hidden]{display:none}.small-note{text-align:center;font-size:10px;color:#756e62;margin-top:22px}footer{max-width:1140px;margin:40px auto 0;padding:25px;border-top:1px solid var(--line);display:flex;justify-content:center;gap:25px;font-size:10px;color:#6b6254}.skip{position:absolute;left:16px;top:-80px;background:white;padding:12px;z-index:20}.skip:focus{top:12px}dialog{width:calc(100% - 40px);max-width:420px;max-height:90dvh;overflow:auto;border:1px solid var(--line);border-radius:16px;background:#fffefa;color:#39362e;padding:32px;box-shadow:0 20px 80px #39362e22}dialog::backdrop{background:#39362e66;backdrop-filter:blur(3px)}#close{position:absolute;right:14px;top:8px;border:0;background:none;color:#6b6254;font-size:26px}dialog h2{font-size:24px;letter-spacing:-.7px;margin:10px 0 16px}dialog p,dialog li{font-size:13px;line-height:1.8;color:#635d51}dialog ol{padding-left:20px}.primary{background:#a34d25;color:white;border:0;border-radius:7px;padding:12px 18px;font-size:12px}.secondary{background:none;border:1px solid #c4bba9;border-radius:7px;padding:11px 16px;color:#634a34;font-size:12px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}.solution-expression{font-size:18px;color:#664425;overflow-wrap:anywhere;font-weight:600}.saved-note{font-size:10px!important}#share-text{display:block;width:100%;font:12px system-ui;padding:10px;margin-top:10px;border:1px solid #c4bba9;border-radius:6px}#share-fallback label{font-size:12px}#share-status{font-size:12px;color:#664425}@media(max-width:450px){header{padding:20px 18px}nav{gap:12px;font-size:10px}.brand{font-size:20px}.brand span{display:none}main{margin-top:28px;padding:0 14px}.game{padding:20px 15px}.game-heading{gap:8px}.mode-switch button{padding:7px 9px}.numbers{gap:7px;min-height:70px}.number{min-height:65px}.target{margin-top:25px}.target strong{font-size:64px}.intro h1{font-size:39px}footer{gap:20px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}