:root{color-scheme:only light;color:#fff;background:#0a0a0a;font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,Helvetica Neue,Arial,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--orange: #ff9f0a;--page-dark: #0a0a0a;--page-light: #e2e8f0;--phone-dark: #000;--phone-light: #fff;--number-dark: #2c2c2e;--number-light: #f1f5f9;--function-dark: #a5a5a5;--function-light: #cbd5e1;--science-dark: #242426;--science-light: #e2e8f0}*{box-sizing:border-box}html,body,#root{min-width:320px;min-height:100%;margin:0;-webkit-text-size-adjust:100%;text-size-adjust:100%;forced-color-adjust:none}body{min-height:100dvh;overflow-x:hidden;background:var(--page-dark);overscroll-behavior:none}button{font:inherit;letter-spacing:0}.app-shell{min-height:100svh;min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:max(10px,env(safe-area-inset-top)) 10px 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16px;overflow:hidden;color:#fff;background:var(--phone-dark);border:4px solid #262626;border-radius:44px;box-shadow:0 22px 64px #000000b8,0 0 0 1px #ffffff0a;transition:color .22s ease,background-color .22s ease,border-color .22s ease}.theme-light .calculator-phone{color:#0f172a;background:var(--phone-light);border-color:#cbd5e1;box-shadow:0 22px 54px #0f172a30}.theme-light .phone-notch{background:#e2e8f0;border-color:#cbd5e1}.theme-light .phone-notch span{background:#334155;border-color:#475569}.theme-light .phone-notch i{background:#94a3b8}.phone-notch{position:absolute;top:7px;left:50%;width:80px;height:14px;display:flex;align-items:center;justify-content:center;gap:8px;background:#171717;border:1px solid #2c2c2c;border-radius:999px;transform:translate(-50%)}.phone-notch span,.phone-notch i{display:block;border-radius:50%}.phone-notch span{width:8px;height:8px;background:#080808;border:1px solid #262626}.phone-notch 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auto;display:flex;flex-direction:column;gap:8px}.scientific-panel{display:grid;grid-template-rows:repeat(4,36px);gap:8px;padding:8px;background:#171717b8;border:1px solid rgba(64,64,64,.72);border-radius:16px}.theme-light .scientific-panel{background:#e2e8f0b8;border-color:#cbd5e1}.scientific-row,.basic-row{min-width:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}.scientific-row{gap:6px}.basic-keypad{display:grid;grid-template-rows:repeat(5,54px);gap:8px}.basic-row{gap:8px}.calc-button{position:relative;min-width:0;width:100%;height:54px;display:grid;place-items:center;padding:0;color:#fff;background:transparent;border:0;border-radius:999px;cursor:pointer;font-size:1.28rem;font-weight:500;letter-spacing:0;line-height:1;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;touch-action:manipulation;transition:background-color 90ms ease,color 90ms ease,transform 90ms ease}.calc-button>span{pointer-events:none;white-space:nowrap}.calc-button:active{transform:scale(.94)}.calc-button:focus-visible,.header-icon:focus-visible,.mode-switch button:focus-visible,.copy-button:focus-visible,.display-status button:focus-visible,.history-item:focus-visible,.history-clear:focus-visible{outline:2px solid var(--orange);outline-offset:2px}.calc-button--number{background:var(--number-dark)}.calc-button--number:active{background:#5b5b5e}.theme-light .calc-button--number{color:#0f172a;background:var(--number-light);box-shadow:inset 0 0 0 1px #e2e8f0}.theme-light .calc-button--number:active{background:#cbd5e1}.calc-button--function{color:#000;background:var(--function-dark);font-size:1.05rem}.theme-light .calc-button--function{color:#0f172a;background:var(--function-light)}.theme-light .calc-button--function:active{background:#94a3b8}.calc-button--operator{background:var(--orange)}.calc-button--operator:active{background:#ffc463}.calc-button--operator.is-active{color:var(--orange);background:#fff}.theme-light .calc-button--operator.is-active{color:#ea580c;background:#fff;box-shadow:inset 0 0 0 1px #fdba74}.calc-button--scientific{height:36px;color:#e5e5e5;background:#29292b;box-shadow:inset 0 0 0 1px #ffffff0b;border-radius:10px;font-size:.72rem}.calc-button--scientific:active,.calc-button--scientific.is-active{color:#fb923c;background:#4b4b4e}.theme-light .calc-button--scientific{color:#1e293b;background:var(--science-light);box-shadow:inset 0 0 0 1px #0f172a12}.theme-light .calc-button--scientific.is-active{color:#ea580c;background:#cbd5e1}.theme-light .calc-button--scientific:active{color:#c2410c;background:#cbd5e1}.calc-button.is-wide{grid-column:span 2;justify-items:start;padding-left:25%}.mode-basic 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strong{max-width:100%;color:#fb923c;overflow-wrap:anywhere;font-size:1.35rem;font-weight:500}.history-empty{margin:0;padding:48px 20px;color:#737373;font-size:.85rem;text-align:center}.history-footer{justify-content:flex-end;border-top:1px solid #303030;border-bottom:0}.history-clear{display:inline-flex;align-items:center;gap:7px;padding:8px;color:var(--orange);background:transparent;border:0;cursor:pointer}.history-clear:disabled{color:#525252;cursor:default}.theme-light .history-panel{color:#0f172a;background:#fff;border-color:#cbd5e1;box-shadow:0 24px 72px #0f172a3d}.theme-light .history-header,.theme-light .history-footer{border-color:#e2e8f0}.theme-light .history-item{color:#0f172a;border-color:#e2e8f0}.theme-light .history-item:active{background:#f1f5f9}.theme-light .history-expression,.theme-light .history-empty{color:#64748b}.theme-light .history-item strong,.theme-light .history-clear{color:#ea580c}.theme-light .history-clear:disabled{color:#94a3b8}.theme-light 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6px}.mode-scientific .display-value{font-size:2.6rem}.display-value[data-length=medium]{font-size:2.25rem}.display-value[data-length=long]{font-size:1.75rem}.scientific-panel{grid-template-rows:repeat(4,44px);gap:8px;padding:8px;border-radius:16px}.scientific-row{gap:8px}.calc-button--scientific{height:44px;border-radius:10px;font-size:.76rem}.basic-keypad{grid-template-rows:repeat(5,46px);gap:6px}.basic-row{gap:7px}.calc-button{height:46px;font-size:1.16rem}.calc-button--function{font-size:.98rem}}@media(max-width:360px){.brand-block p{display:none}.mode-switch button{min-width:44px}.header-icon{width:26px;height:26px;flex-basis:26px}}@media(max-height:760px){.app-shell{justify-content:flex-start}.product-header{margin-bottom:8px}.calculator-phone{padding-top:18px}.display{min-height:94px;padding-bottom:6px}.mode-scientific .display-value{font-size:2.5rem}.scientific-panel{grid-template-rows:repeat(4,44px)}.calc-button--scientific{height:44px}.basic-keypad{grid-template-rows:repeat(5,44px);gap:6px}.basic-row{gap:7px}.calc-button{height:44px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}