*{box-sizing:border-box}:root{--bg: #0f1115;--shell: #2b2f36;--shell-dark: #1f2329;--shell-edge: #14171b;--plate: #3a4047;--display-bg: #c8d4b6;--display-shadow: #92a07d;--display-text: #1a1a1a;--key-num: #2c2f35;--key-num-text: #f4f5f7;--key-fn: #3a3f47;--key-fn-text: #f0f2f5;--key-op: #3a3f47;--key-eq: #1d4ed8;--key-eq-text: #fff;--key-ac: #b91c1c;--key-ac-text: #fff;--shift-orange: #f59e0b;--alpha-red: #ef4444;--shift-yellow: #fbbf24;--label-top: #f59e0b;--label-blue: #60a5fa;--line: #44494f}html,body,#root{height:100%;margin:0}body{background:radial-gradient(ellipse at top,#1b1f25,#0a0c10 60%,#050608);color:#e5e7eb;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-tap-highlight-color:transparent;overflow:hidden}.app{height:100%;width:100%;display:flex;align-items:center;justify-content:center;padding:max(env(safe-area-inset-top,0),12px) 12px 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#0000004d}.keypad-rows-fns,.keypad-rows-main{display:flex;flex-direction:column;gap:7px}.keypad-row{display:grid;grid-template-columns:repeat(5,1fr);gap:7px}.top-controls{display:grid;grid-template-columns:1fr 1.5fr 1fr;gap:10px;align-items:center;padding:4px 2px 6px}.top-side{display:flex;flex-direction:column;gap:7px;align-self:stretch}.top-side .key{flex:1 1 0;min-height:50px}.dpad{position:relative;width:116px;height:116px;margin:0 auto;border-radius:50%;background:radial-gradient(circle at 30% 28%,#5a626d,#353a42 55%,#1f242a);display:grid;grid-template-columns:1fr 1fr 1fr;grid-template-rows:1fr 1fr 1fr;box-shadow:inset 0 2px 8px #0009,inset 0 -2px 4px #ffffff0d,0 2px #0a0c0f,0 6px 14px #00000073;border:1px solid #14171b}.dpad-key{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;border:none;color:#f3f4f6;font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .12s,transform .04s,color 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720px){.dpad{width:96px;height:96px}.dpad-center{width:32px;height:32px}.top-controls{padding:2px 0}}.app.landscape{padding:0}.app.landscape .calc-shell{width:min(100vw,920px);max-width:100vw;height:100vh;max-height:100vh;border-radius:0;padding:8px 12px 10px;display:grid;grid-template-columns:minmax(300px,42%) 1fr;grid-template-rows:1fr auto auto auto auto 1fr;grid-template-areas:".        main" "header   main" "display  main" "topctl   main" "leftfns  main" ".        main";gap:6px 14px}.app.landscape .calc-shell>.calc-header{grid-area:header}.app.landscape .calc-shell>.calc-display-stack{grid-area:display}.app.landscape .calc-shell>.keypad{display:contents}.app.landscape .keypad-rows{display:contents;padding:0;background:none;border-radius:0;box-shadow:none}.app.landscape .top-controls{grid-area:topctl}.app.landscape .keypad-rows-fns{grid-area:leftfns;padding:8px;background:var(--plate);border-radius:12px;box-shadow:inset 0 1px #ffffff0a,inset 0 -2px 8px #0000004d}.app.landscape .keypad-rows-main{grid-area:main;align-self:stretch;padding:8px;background:var(--plate);border-radius:12px;box-shadow:inset 0 1px #ffffff0a,inset 0 -2px 8px #0000004d}.app.landscape .key{min-height:38px}.keypad.shift-active .key.has-top{border-color:#f59e0b8c;box-shadow:0 2px #0a0c0f,inset 0 0 0 1px #f59e0b38,inset 0 1px #ffffff0d}#root .keypad.shift-active .key.has-top .key-top{top:auto!important;right:auto!important;bottom:6px!important;left:8px!important;color:var(--key-fn-text)!important}#root .keypad.shift-active .key.has-top .key-main{bottom:auto!important;left:auto!important;top:4px!important;right:6px!important;color:var(--label-top)!important}