/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000}::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000}}}@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before{box-sizing:border-box;border:0 solid;margin:0;padding:0}::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){-webkit-appearance:button;appearance:button}::file-selector-button{-webkit-appearance:button;appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.absolute{position:absolute}.relative{position:relative}.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.block{display:block}.grid{display:grid}.hidden{display:none}.table{display:table}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.ring{--tw-ring-shadow:var(--tw-ring-inset,) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color,currentcolor);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}}:root{--ink:#101720;--paper:#eef0eb;--white:#fff;--lime:#c7f36b;--mint:#7cf7c9;--orange:#ffba6b;--red:#ff718d;--blue:#8ab4ff;--line:#c8cec5;--muted:#637079}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{background:var(--paper);color:var(--ink);margin:0;font-family:Arial,Helvetica,sans-serif}button,input{font:inherit}button,a,summary{touch-action:manipulation}:is(button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,canvas:focus-visible,math-field:focus-within){outline:3px solid var(--lime);outline-offset:3px}main{max-width:1500px;min-height:100vh;margin:auto;padding:0 4vw;overflow:hidden}.site-header{border-bottom:1px solid var(--line);grid-template-columns:1fr auto 1fr;align-items:center;height:82px;display:grid}.brand{color:inherit;letter-spacing:2px;align-items:center;gap:11px;width:max-content;font-size:13px;text-decoration:none;display:flex}.brand-mark{background:var(--ink);color:var(--lime);place-items:center;width:34px;height:34px;font-family:Georgia,serif;font-size:21px;display:grid}.site-header nav{gap:28px;display:flex}.site-header nav a{color:#4f5b64;font-size:13px;text-decoration:none}.site-header nav a:hover{color:var(--ink)}.header-actions{justify-self:end;align-items:center;gap:18px;display:flex}.language-switch{border:1px solid var(--ink);background:#fff;display:flex}.language-switch a{min-width:43px;min-height:38px;color:var(--ink);letter-spacing:1px;place-items:center;font:700 11px ui-monospace,monospace;text-decoration:none;display:grid}.language-switch a+a{border-left:1px solid var(--ink)}.language-switch a[aria-current=page]{background:var(--ink);color:var(--lime)}.status{letter-spacing:1px;white-space:nowrap;font:12px ui-monospace,monospace}.status i,.formula-status i{background:#50bd82;border-radius:50%;width:8px;height:8px;margin-right:8px;display:inline-block}.eyebrow,.aside-label{letter-spacing:1.8px;margin:0 0 16px;font:12px ui-monospace,monospace}.hero{grid-template-columns:1fr auto;align-items:end;gap:50px;padding:72px 0 58px;display:grid}.hero h1{letter-spacing:-.07em;text-transform:uppercase;margin:0;font-size:clamp(54px,7.1vw,108px);line-height:.88}.hero h1 em{text-transform:none;color:#256e58;font-family:Georgia,serif;font-weight:400}.intro{color:#45505a;max-width:650px;margin:30px 0 0;font-size:18px;line-height:1.6}.formula-tile{background:var(--lime);width:310px;box-shadow:8px 8px 0 var(--ink);flex-direction:column;padding:24px;display:flex;transform:rotate(-1.5deg)}.formula-tile span,.formula-tile small{letter-spacing:1.2px;font:12px ui-monospace,monospace}.formula-tile strong{margin:18px 0;font:25px Georgia,serif}.function-lab{border-top:1px solid var(--ink);padding:54px 0 70px}.section-heading,.analysis-heading{grid-template-columns:1fr minmax(280px,520px);align-items:end;gap:45px;margin-bottom:27px;display:grid}.section-heading h2,.analysis-heading h2,.graph-title h2{letter-spacing:-.05em;text-transform:uppercase;margin:0;font-size:clamp(34px,4vw,58px);line-height:.95}.section-heading>p,.analysis-heading>p{color:var(--muted);margin:0;font-size:15px;line-height:1.6}.math-composer{background:var(--white);border:1px solid var(--ink)}.editor-shell{background:#f8f9f6;grid-template-columns:auto 1fr auto;align-items:center;gap:20px;min-height:142px;padding:24px 26px;display:grid}.function-prefix{white-space:nowrap;font:italic 29px Georgia,serif}.mathfield-host{min-width:0}.mathfield-host math-field{--caret-color:#256e58;--selection-background-color:#c7f36b88;--placeholder-color:#87938a;background:0 0;border:0;width:100%;min-height:78px;padding:14px 6px;font-size:clamp(27px,3.5vw,48px);display:block;overflow-x:auto}.mathfield-host math-field::part(menu-toggle),.mathfield-host math-field::part(virtual-keyboard-toggle){display:none}.editor-loading{color:var(--muted)}.editor-actions{gap:6px;display:flex}.editor-actions button{border:1px solid var(--line);background:var(--white);cursor:pointer;width:46px;height:46px;font-size:21px}.tool-tabs{border-top:1px solid var(--line);border-bottom:1px solid var(--line);scrollbar-width:thin;gap:0;display:flex;overflow-x:auto}.tool-tabs button{border:0;border-right:1px solid var(--line);cursor:pointer;color:#56616a;background:#eef0eb;flex:none;min-height:46px;padding:0 19px;font-size:13px}.tool-tabs button.active{background:var(--ink);color:var(--white)}.symbol-tools{scrollbar-width:thin;gap:8px;padding:14px;display:flex;overflow-x:auto}.symbol-tools button{border:1px solid var(--line);cursor:pointer;background:#f7f8f5;flex-direction:column;flex:0 0 100px;justify-content:center;align-items:center;gap:4px;min-height:66px;display:flex}.symbol-tools button:hover{background:var(--lime);border-color:var(--ink)}.symbol-tools button span{font:20px Georgia,serif}.symbol-tools button small{color:#69747b;font-size:10px}.symbol-tools .next-hole{background:#fff8ed;border-color:#d9b87d}.editor-hint{color:var(--muted);margin:0;padding:0 16px 16px;font-size:13px}.editor-hint kbd{background:var(--ink);color:#fff;border-radius:2px;padding:2px 6px}.formula-options{justify-content:space-between;align-items:center;gap:20px;padding:18px 0;display:flex}.examples{flex-wrap:wrap;align-items:center;gap:7px;display:flex}.examples>span{margin-right:3px;font:12px ui-monospace,monospace}.examples button{border:1px solid var(--line);cursor:pointer;background:0 0;min-height:39px;padding:0 13px;font-size:13px}.examples button:hover{border-color:var(--ink);background:#fff}.analysis-range{flex-wrap:wrap;flex-shrink:0;justify-content:flex-end;align-items:center;gap:8px;display:flex}.analysis-range label{font:12px ui-monospace,monospace}.analysis-range input{border:1px solid var(--line);background:#fff;width:76px;height:39px;margin-left:6px;padding:0 8px}.range-state{border:1px solid var(--line);letter-spacing:.7px;white-space:nowrap;align-items:center;min-height:27px;padding:0 8px;font:10px ui-monospace,monospace;display:inline-flex}.range-state.auto{background:#def8ec;border-color:#72bd9d}.range-state.manual{background:#fff0d6;border-color:#dfb769}.range-auto{border:1px solid var(--ink);cursor:pointer;background:0 0;min-height:39px;padding:0 11px;font-size:12px}.range-auto:hover{background:var(--lime)}.run-row{background:var(--ink);color:#fff;justify-content:space-between;align-items:center;padding:13px 16px 13px 19px;display:flex}.formula-status{font-size:13px}.formula-status.invalid{color:#ffacbd}.formula-status.invalid i{background:var(--red)}.primary-action{background:var(--lime);min-height:52px;color:var(--ink);cursor:pointer;text-transform:uppercase;letter-spacing:.04em;border:0;padding:0 24px;font-weight:700}.primary-action:disabled{opacity:.45;cursor:not-allowed}.graph-history{border:1px solid var(--line);background:#ffffff61;border-top:0;padding:16px 18px}.graph-history-head{justify-content:space-between;align-items:center;gap:16px;display:flex}.graph-history-head span{letter-spacing:1px;color:var(--muted);font:11px ui-monospace,monospace;display:block}.graph-history-head h3{margin:3px 0 0;font-size:17px}.graph-history-head>button{border:1px solid var(--line);cursor:pointer;background:0 0;min-height:40px;padding:0 12px}.graph-history-head>button:hover:not(:disabled){border-color:var(--ink);background:#fff}.graph-history-head>button:disabled{opacity:.45;cursor:not-allowed}.graph-history>p{color:var(--muted);margin:13px 0 1px;font-size:13px}.graph-history ol{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:14px 0 0;padding:0;list-style:none;display:grid}.graph-history-item{text-align:left;border:1px solid var(--line);cursor:pointer;background:#fff;flex-direction:column;justify-content:center;gap:5px;width:100%;min-height:62px;padding:9px 11px;display:flex}.graph-history-item:hover{border-color:var(--ink);box-shadow:inset 3px 0 0 var(--lime)}.graph-history-item code{white-space:nowrap;text-overflow:ellipsis;font:13px ui-monospace,monospace;overflow:hidden}.graph-history-item span{color:var(--muted);font:11px ui-monospace,monospace}.graph-layout{border:1px solid var(--ink);background:var(--white);grid-template-columns:minmax(0,1fr) 260px;margin-top:54px;display:grid}.graph-layout>div{min-width:0}.graph-title{border-bottom:1px solid var(--ink);justify-content:space-between;align-items:end;min-height:94px;padding:20px 23px;display:flex}.graph-title h2{font-size:32px}.graph-title .eyebrow{margin-bottom:8px}.graph-title>span{color:var(--muted);font:12px ui-monospace,monospace}.universal-graph{background:var(--ink);overscroll-behavior:contain;height:560px;position:relative;overflow:hidden}.universal-graph canvas{touch-action:none;cursor:crosshair;width:100%;height:100%;display:block}.graph-controls{z-index:5;gap:6px;display:flex;position:absolute;top:14px;right:14px}.graph-controls button{color:#fff;cursor:pointer;background:#18232d;border:1px solid #64727e;min-width:44px;height:44px;padding:0 12px}.graph-controls button:hover{background:#2e3c47}.graph-window{z-index:4;color:#aab6bf;background:#101720d9;padding:8px 10px;font:11px ui-monospace,monospace;position:absolute;top:14px;left:14px}.graph-probe{z-index:3;pointer-events:none;position:absolute;inset:0}.graph-guide{border-style:dashed;border-color:#c7f36b88;display:block;position:absolute}.graph-guide.vertical{border-width:0 0 0 1px;top:0;bottom:0}.graph-guide.horizontal{border-width:1px 0 0;left:0;right:0}.graph-probe-dot{border:3px solid var(--ink);background:var(--lime);border-radius:50%;width:15px;height:15px;position:absolute;transform:translate(-50%,-50%);box-shadow:0 0 0 2px #fff}.graph-cursor{pointer-events:none;background:var(--lime);color:var(--ink);border:1px solid var(--ink);white-space:nowrap;flex-direction:column;gap:3px;padding:9px 11px;font:12px ui-monospace,monospace;display:flex;position:absolute;box-shadow:3px 3px #10172088}.graph-cursor.left{transform:translate(-100%)}.graph-cursor b{letter-spacing:.7px;text-transform:uppercase;margin-bottom:2px;font-size:10px}.graph-legend{z-index:4;color:#c1cbd2;background:#101720e8;gap:15px;padding:10px 12px;font:11px ui-monospace,monospace;display:flex;position:absolute;bottom:14px;left:15px}.graph-legend i{border-radius:50%;width:9px;height:9px;margin-right:5px;display:inline-block}.legend-function{background:var(--mint)}.legend-root{background:var(--red)}.legend-extreme{background:var(--orange);transform:rotate(45deg);border-radius:0!important}.legend-inflexion{background:var(--blue)}.graph-summary{border-left:1px solid var(--ink);flex-direction:column;padding:24px;display:flex}.graph-summary code{background:var(--lime);overflow-wrap:anywhere;margin:0 0 22px;padding:14px;font:14px ui-monospace,monospace;display:block}.active-function-switch{flex-wrap:wrap;gap:6px;margin:0 0 9px;display:flex}.active-function-switch button{border:1px solid var(--ink);border-bottom:4px solid var(--function-color);min-width:44px;min-height:38px;color:var(--ink);cursor:pointer;background:#fff;padding:0 10px;font:700 12px ui-monospace,monospace}.active-function-switch button[aria-pressed=true]{background:var(--ink);color:#fff;box-shadow:inset 0 -3px 0 var(--function-color)}.active-function-switch button:focus-visible{outline:3px solid var(--lime);outline-offset:2px}.summary-stat{border-top:1px solid var(--line);align-items:baseline;gap:10px;padding:16px 0;display:flex}.summary-stat strong{font:32px Georgia,serif}.summary-stat span{color:var(--muted);font-size:12px}.summary-note{border-top:1px solid var(--ink);flex-direction:column;gap:7px;margin-top:auto;padding-top:18px;display:flex}.summary-note span{color:var(--muted);font:11px ui-monospace,monospace}.summary-note b{font:13px ui-monospace,monospace}.analysis-heading{margin:62px 0 26px}.analysis-grid{border-top:1px solid var(--ink);border-left:1px solid var(--ink);grid-template-columns:1fr 1fr;display:grid}.analysis-card{border-right:1px solid var(--ink);border-bottom:1px solid var(--ink);background:#fff}.analysis-card summary{cursor:pointer;grid-template-columns:37px 1fr auto 20px;align-items:start;gap:13px;min-height:128px;padding:22px;list-style:none;display:grid}.analysis-card summary::-webkit-details-marker{display:none}.analysis-card summary:hover{background:#f8f9f4}.card-index{color:var(--muted);font:12px ui-monospace,monospace}.card-copy{flex-direction:column;gap:12px;min-width:0;display:flex}.card-copy b{text-transform:uppercase;letter-spacing:.04em;font-size:14px}.card-copy strong{overflow-wrap:anywhere;font:15px/1.45 ui-monospace,monospace}.confidence{text-transform:uppercase;border:1px solid;border-radius:20px;align-self:start;padding:4px 7px;font:10px ui-monospace,monospace}.confidence.exacto{background:var(--lime)}.confidence.verificado{background:#d9f7ec}.confidence.estimado{background:#fff0d6}.analysis-card summary>i{font-size:19px;font-style:normal;transition:transform .18s}.analysis-card[open] summary>i{transform:rotate(45deg)}.card-detail{border-top:1px solid var(--line);padding:0 22px 24px 72px}.card-detail>p{color:#4f5c65;font-size:14px;line-height:1.6}.card-detail h3{text-transform:uppercase;letter-spacing:1px;margin-top:22px;font-size:12px}.card-detail ol{padding-left:20px;font:13px/1.65 ui-monospace,monospace}.verification{background:#f0f2ed;padding:13px;font-size:13px;line-height:1.5}.verification span{letter-spacing:1px;color:#5f6a71;margin-bottom:5px;font:10px ui-monospace,monospace;display:block}.quality-check{background:var(--ink);color:#fff;justify-content:space-between;align-items:center;margin-top:18px;padding:20px 24px;display:flex}.quality-check>div{align-items:center;gap:15px;display:flex}.quality-check p{color:#a7b2b9;margin:5px 0 0;font-size:12px}.check-mark{background:var(--mint);width:39px;height:39px;color:var(--ink);border-radius:50%;place-items:center;font-size:21px;display:grid}.quality-ok,.quality-warn{letter-spacing:1px;padding:8px 10px;font:11px ui-monospace,monospace}.quality-ok{color:var(--mint);border:1px solid var(--mint)}.quality-warn{color:var(--orange);border:1px solid var(--orange)}.analysis-warning{color:#725928;background:#fff8ed;border:1px solid #e5c98f;border-top:0;padding:14px 17px;font-size:12px;line-height:1.5}.ad-banner{border:1px solid var(--line);min-height:104px;color:var(--muted);background:#f7f8f5;grid-template-columns:120px 1fr;align-items:stretch;margin:0 0 54px;display:grid}.ad-banner>span{border-right:1px solid var(--line);letter-spacing:1.4px;place-items:center;font:10px ui-monospace,monospace;display:grid}.ad-banner>div{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:7px;padding:20px;display:flex}.ad-banner strong{color:#5a666e;letter-spacing:.3px;font:13px ui-monospace,monospace}.ad-banner small{font-size:11px}.tools-section{border-top:1px solid var(--ink);padding:66px 0 55px}.workspace{border:1px solid var(--ink);background:#fff;grid-template-columns:.95fr 1.05fr;display:grid}.panel{padding:32px}.scientific{background:var(--ink);color:#fff}.panel-title{align-items:center;gap:15px;margin-bottom:28px;display:flex}.panel-title>span{border:1px solid;border-radius:50%;place-items:center;width:36px;height:36px;font:12px ui-monospace,monospace;display:grid}.panel-title h2{text-transform:uppercase;letter-spacing:.04em;margin:0;font-size:19px}.panel-title p{color:#84909b;margin:5px 0 0;font:12px ui-monospace,monospace}.display{background:#0a1016;border:1px solid #34414d;margin-bottom:18px;padding:18px}.display label,.result span,.metrics span{letter-spacing:1.2px;color:#8795a1;font:11px ui-monospace,monospace}.display input{color:#fff;background:0 0;border:0;border-bottom:1px solid #293640;outline:0;width:100%;padding:12px 0;font:15px ui-monospace,monospace}.result{justify-content:space-between;align-items:end;gap:15px;padding-top:14px;display:flex}.result strong{color:var(--mint);text-overflow:ellipsis;font:25px ui-monospace,monospace;overflow:hidden}.result .error{color:var(--red);font-size:13px}.keypad{grid-template-columns:repeat(5,1fr);gap:7px;display:grid}.keypad button{color:#c8d2d9;cursor:pointer;background:#202a34;border:1px solid #3a4651;min-height:46px}.keypad button:hover{background:#34414b}.keypad .number{color:#fff;background:#2a3540}.keypad .equals{background:var(--lime);color:var(--ink);font-weight:700}.keypad .danger{color:var(--red)}.solver{padding-left:40px}.equation-input{background:#f1f2ee;align-items:end;gap:8px;margin-bottom:22px;padding:20px;display:flex}.equation-input div{align-items:end;display:flex}.equation-input label{z-index:1;align-self:flex-start;margin-right:-10px;padding:5px;font:11px ui-monospace,monospace}.equation-input input{border:0;border-bottom:2px solid var(--ink);text-align:center;background:0 0;outline:0;width:70px;padding:13px 7px 4px;font:20px ui-monospace,monospace}.equation-input b{padding-bottom:5px}.metrics{grid-template-columns:1fr 1fr;gap:12px;display:grid}.metrics>div{border:1px solid var(--line);padding:18px}.metrics strong{overflow-wrap:anywhere;margin:9px 0;font:17px ui-monospace,monospace;display:block}.metrics small{color:#66727a}.notice{border-left:4px solid var(--red);background:#fff0f3;padding:25px}.send-graph{border:1px solid var(--ink);background:var(--lime);cursor:pointer;width:100%;min-height:50px;margin-top:14px;font-weight:700}.send-graph:hover{box-shadow:4px 4px 0 var(--ink)}.calculator-workspace{grid-template-columns:1fr}.calculator-workspace .scientific{min-width:0}.calculator-workspace .solver{border-top:1px solid var(--ink);padding-left:32px}.scientific-calculator{container:scientific/inline-size}.sci-screen{background:#080d12;border:1px solid #40505c}.sci-screen-head{border-bottom:1px solid #34414d;justify-content:space-between;align-items:center;gap:15px;min-height:48px;padding:7px 10px 7px 14px;display:flex}.sci-screen-head>div:first-child{flex-wrap:wrap;gap:7px;display:flex}.sci-screen-head>div:first-child span{color:#9eabb4;letter-spacing:.8px;border:1px solid #3b4a56;padding:5px 7px;font:10px ui-monospace,monospace}.sci-edit-actions{gap:5px;display:flex}.sci-edit-actions button{color:#fff;cursor:pointer;background:#18222c;border:1px solid #3c4b57;min-width:42px;height:38px}.sci-edit-actions button:last-child{color:var(--red)}.sci-expression-host{min-height:104px;color:var(--ink);background:#f7f9f5;align-items:center;padding:13px 16px;display:flex;position:relative}.sci-expression-host>div{width:100%}.sci-expression-host math-field{--caret-color:#256e58;--selection-background-color:#c7f36b88;--placeholder-color:#859189;background:0 0;border:0;width:100%;min-height:72px;padding:10px 2px;font-size:clamp(25px,3vw,40px);display:block;overflow-x:auto}.sci-expression-host math-field::part(menu-toggle),.sci-expression-host math-field::part(virtual-keyboard-toggle),.sci-result-math math-field::part(menu-toggle),.sci-result-math math-field::part(virtual-keyboard-toggle){display:none}.sci-result{border-top:1px solid #34414d;grid-template-columns:minmax(180px,1.2fr) minmax(150px,.8fr) auto;align-items:end;gap:18px;min-height:112px;padding:16px;display:grid}.sci-result-label{grid-column:1/-1;align-items:center;gap:9px;margin-bottom:-9px;display:flex}.sci-result-label>span,.sci-approx>span{letter-spacing:1.1px;color:#8795a1;font:10px ui-monospace,monospace}.sci-result-label small{letter-spacing:.8px;background:var(--lime);color:var(--ink);padding:3px 6px;font:9px ui-monospace,monospace}.sci-result-math{min-width:0}.sci-result-math math-field{width:100%;color:var(--mint);pointer-events:none;background:0 0;border:0;padding:0;font-size:clamp(24px,3vw,38px);display:block;overflow-x:auto}.sci-approx{flex-direction:column;gap:7px;min-width:0;display:flex}.sci-approx b{color:#c8d2d9;overflow-wrap:anywhere;font:16px ui-monospace,monospace}.sci-result.has-error{flex-direction:column;justify-content:center;align-items:flex-start;display:flex}.sci-result.has-error .sci-result-label{margin:0}.sci-result.has-error>strong{color:var(--red);font:13px/1.5 ui-monospace,monospace}.use-result{border:1px solid var(--mint);min-height:42px;color:var(--mint);cursor:pointer;background:0 0;padding:0 13px;font-size:12px}.use-result:hover{background:var(--mint);color:var(--ink)}.sci-tabs{scrollbar-width:thin;scroll-snap-type:x proximity;border:1px solid #3b4854;margin-top:14px;display:flex;overflow-x:auto}.sci-tabs button{color:#9eabb4;cursor:pointer;scroll-snap-align:start;background:#18222c;border:0;border-right:1px solid #3b4854;flex:none;min-height:46px;padding:0 17px;font-size:12px}.sci-tabs button.active{background:var(--lime);color:var(--ink);font-weight:700}.sci-workbench{grid-template-columns:minmax(0,1.25fr) minmax(270px,.75fr);gap:12px;margin-top:12px;display:grid}.sci-palette{grid-template-columns:repeat(4,minmax(0,1fr));align-content:start;gap:7px;display:grid}.sci-palette button{color:#fff;cursor:pointer;background:#17212a;border:1px solid #3a4752;flex-direction:column;justify-content:center;align-items:center;gap:5px;min-height:62px;padding:5px;display:flex}.sci-palette button:hover{border-color:var(--lime);background:#2a3741}.sci-palette button span{font:19px Georgia,serif}.sci-palette button small{color:#93a0aa;text-align:center;font-size:9px;line-height:1.15}.sci-keypad{grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;display:grid}.sci-keypad button{color:#d5dde2;cursor:pointer;background:#1d2832;border:1px solid #3b4854;min-height:51px;font-size:15px}.sci-keypad button:hover{background:#33414c}.sci-keypad .digit{color:#fff;background:#2b3741;font-weight:700}.sci-keypad .operator{color:var(--lime)}.sci-keypad .answer-key{color:var(--blue)}.sci-keypad .backspace-key{color:var(--orange)}.sci-keypad .clear-key{color:var(--red)}.sci-keypad .equals-key{background:var(--lime);color:var(--ink);font-weight:800}.sci-keypad button:disabled{opacity:.35;cursor:not-allowed}.sci-domain-hint{border-left:3px solid var(--orange);color:#a9b4bc;background:#141e26;margin:12px 0 0;padding:10px 12px;font:11px/1.5 ui-monospace,monospace}.sci-history{border-top:1px solid #394752;margin-top:14px}.sci-history-head{justify-content:space-between;align-items:center;gap:15px;min-height:50px;display:flex}.sci-history h3{letter-spacing:1.2px;text-transform:uppercase;margin:0;font:11px ui-monospace,monospace}.sci-history-head button{color:#9ba7af;cursor:pointer;background:0 0;border:0;font-size:11px;text-decoration:underline}.sci-history-head button:disabled{opacity:.35}.sci-history>p{color:#7f8c95;margin:0;font-size:12px}.sci-history ol{border-top:1px solid #2f3b45;margin:0;padding:0;list-style:none}.sci-history li{border-bottom:1px solid #2f3b45;grid-template-columns:1fr 44px;display:grid}.history-expression{color:#fff;text-align:left;cursor:pointer;background:0 0;border:0;justify-content:space-between;gap:14px;min-width:0;padding:11px 12px;display:flex}.history-expression:hover{background:#19242d}.history-expression code{text-overflow:ellipsis;white-space:nowrap;color:#aeb9c0;overflow:hidden}.history-expression b{color:var(--mint);flex-shrink:0;font:12px ui-monospace,monospace}.history-insert{color:var(--blue);cursor:pointer;background:0 0;border:0;border-left:1px solid #2f3b45;font-size:18px}.history-insert:hover{background:#19242d}@container scientific (width<=760px){.sci-workbench{grid-template-columns:1fr}.sci-palette{grid-template-columns:repeat(4,minmax(0,1fr))}}@container scientific (width<=520px){.sci-screen-head{flex-direction:column;align-items:flex-start}.sci-edit-actions{width:100%}.sci-edit-actions button{flex:1;min-height:44px}.sci-expression-host{min-height:92px;padding:10px}.sci-result{grid-template-columns:1fr;gap:10px}.sci-result-label{grid-column:1;margin:0}.use-result{width:100%}.sci-palette{grid-template-columns:repeat(3,minmax(0,1fr))}.sci-palette button{min-height:66px}.sci-keypad button{min-height:48px}.history-expression{flex-direction:column;gap:5px}.history-expression b{align-self:flex-start}}.seo-content{border-top:1px solid var(--ink);padding:68px 0}.seo-intro{grid-template-columns:minmax(220px,.72fr) 1.3fr;align-items:start;column-gap:50px;display:grid}.seo-intro .eyebrow{grid-column:1}.seo-intro h2{letter-spacing:-.055em;text-transform:uppercase;grid-column:1;margin:0;font-size:clamp(34px,4.2vw,62px);line-height:.98}.seo-intro>p:last-child{max-width:650px;color:var(--muted);grid-area:1/2/3;align-self:end;margin:0;font-size:17px;line-height:1.65}.seo-grid{border-top:1px solid var(--ink);border-left:1px solid var(--ink);grid-template-columns:repeat(3,1fr);margin-top:42px;display:grid}.seo-grid article{border-right:1px solid var(--ink);border-bottom:1px solid var(--ink);background:#fff;min-height:220px;padding:24px}.seo-grid article>span{color:var(--muted);font:11px ui-monospace,monospace}.seo-grid h3{text-transform:uppercase;margin:35px 0 13px;font-size:18px}.seo-grid p{color:#53606a;margin:0;font-size:14px;line-height:1.65}.faq{border-top:1px solid var(--ink);grid-template-columns:.75fr 1.25fr;margin-top:48px;display:grid}.faq>h2{text-transform:uppercase;margin:24px 0;font-size:23px}.faq details{border-bottom:1px solid var(--ink);grid-column:2}.faq summary{cursor:pointer;justify-content:space-between;gap:20px;padding:23px 0;font-weight:700;list-style:none;display:flex}.faq summary::-webkit-details-marker{display:none}.faq summary i{font-size:18px;font-style:normal;transition:transform .18s}.faq details[open] summary i{transform:rotate(45deg)}.faq details p{color:var(--muted);margin:0;padding:0 40px 24px 0;font-size:14px;line-height:1.65}footer{border-top:1px solid var(--line);color:#657078;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;padding:25px 0 35px;font:11px ui-monospace,monospace;display:grid}.footer-links{justify-content:center;gap:18px;display:flex}.footer-links a{color:#4f5b64;text-decoration:none}.footer-links a:hover{color:var(--ink);text-decoration:underline}.footer-note{grid-area:2/1/auto/3}.studio-signature{opacity:.9;justify-self:end;place-items:center;width:58px;height:58px;display:grid}.studio-signature img{object-fit:contain;width:54px;height:54px;display:block}.studio-signature:hover{opacity:1}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}.info-page{overflow:visible}.info-content{padding:78px 0 72px}.info-title{grid-template-columns:minmax(260px,.8fr) 1.2fr;gap:20px 70px;padding-bottom:55px;display:grid}.info-title .eyebrow{grid-column:1/-1}.info-title h1{letter-spacing:-.065em;text-transform:uppercase;margin:0;font-size:clamp(48px,7vw,96px);line-height:.9}.info-title>p:not(.eyebrow){max-width:690px;color:var(--muted);align-self:end;margin:0;font-size:18px;line-height:1.65}.info-title small{color:var(--muted);grid-column:2;font:11px ui-monospace,monospace}.info-sections{border-top:1px solid var(--ink)}.info-sections>section{border-bottom:1px solid var(--line);grid-template-columns:70px minmax(0,760px);gap:28px;padding:34px 0;display:grid}.info-sections>section>span{color:var(--muted);font:11px ui-monospace,monospace}.info-sections h2{text-transform:uppercase;letter-spacing:-.02em;margin:0 0 14px;font-size:22px}.info-sections p{color:#4f5c65;margin:0 0 13px;font-size:15px;line-height:1.72}.info-email{background:var(--lime);border:1px solid var(--ink);color:var(--ink);margin-top:9px;padding:15px 18px;font:700 13px ui-monospace,monospace;text-decoration:none;display:inline-block}.info-external{color:#225f4d;width:max-content;max-width:100%;margin-top:10px;font-size:14px;font-weight:700;display:block}.info-back{color:var(--ink);border-bottom:1px solid;margin-top:38px;font:700 13px ui-monospace,monospace;text-decoration:none;display:inline-block}.info-page footer{margin-top:0}@media (max-width:1100px){.graph-layout{grid-template-columns:1fr}.graph-summary{border-left:0;border-top:1px solid var(--ink);grid-template-columns:1.5fr repeat(4,1fr);align-items:center;gap:15px;display:grid}.graph-summary code{margin:0}.summary-stat{border-top:0;flex-direction:column;gap:2px;padding:0}.summary-note{flex-direction:row;grid-column:1/-1;justify-content:space-between;margin-top:0}.universal-graph{height:500px}.workspace{grid-template-columns:1fr}.solver{padding-left:32px}}@media (max-width:800px){main{padding:0 22px}.site-header{grid-template-columns:1fr auto}.site-header nav{display:none}.hero{grid-template-columns:1fr;padding:52px 0 44px}.formula-tile{display:none}.section-heading,.analysis-heading{grid-template-columns:1fr;gap:18px}.editor-shell{grid-template-columns:auto 1fr;padding:18px}.editor-actions{grid-column:2;justify-content:flex-end}.formula-options{flex-direction:column;align-items:flex-start}.analysis-range{justify-content:flex-end;width:100%}.run-row{flex-direction:column;align-items:stretch;gap:13px}.primary-action{width:100%}.graph-history ol{grid-template-columns:repeat(2,minmax(0,1fr))}.graph-layout{margin-top:40px}.graph-title{flex-direction:column;align-items:flex-start;gap:10px}.graph-summary{grid-template-columns:1fr 1fr}.active-function-panel{grid-column:1/-1}.analysis-grid{grid-template-columns:1fr}.universal-graph{height:430px}.quality-check{flex-direction:column;align-items:flex-start;gap:16px}.workspace{grid-template-columns:1fr}.seo-intro{grid-template-columns:1fr;gap:18px}.seo-intro h2,.seo-intro .eyebrow,.seo-intro>p:last-child{grid-area:auto/1}.seo-grid{grid-template-columns:1fr}.seo-grid article{min-height:0}.faq{grid-template-columns:1fr}.faq details{grid-column:1}.faq>h2{margin-bottom:4px}.info-title{grid-template-columns:1fr;gap:18px}.info-title .eyebrow,.info-title small{grid-column:1}.info-title>p:not(.eyebrow){font-size:16px}.info-sections>section{grid-template-columns:42px 1fr;gap:16px}}@media (max-width:560px){main{padding:0 15px}.site-header{height:70px}.header-actions{gap:8px}.status{display:none}.language-switch a{min-width:42px;min-height:42px}.hero h1{font-size:48px}.hero{padding:42px 0 36px}.intro{font-size:15px}.function-lab{padding:42px 0 55px}.section-heading h2,.analysis-heading h2{font-size:36px}.editor-shell{grid-template-columns:1fr;gap:7px;min-height:120px;padding:14px}.function-prefix{font-size:21px}.mathfield-host math-field{min-height:67px;padding:10px 2px;font-size:28px}.editor-actions{grid-column:1}.tool-tabs button{min-height:48px;padding:0 15px}.symbol-tools button{flex-basis:88px;min-height:68px}.analysis-range{justify-content:flex-start}.analysis-range .range-state{width:100%}.analysis-range label{align-items:center;gap:4px;display:flex}.analysis-range input{width:66px;margin-left:0}.range-auto{margin-left:auto}.formula-status{font-size:12px}.graph-history{padding:14px}.graph-history-head{flex-direction:column;align-items:flex-start}.graph-history-head>button{width:100%;min-height:44px}.graph-history ol{grid-template-columns:1fr}.graph-title>span{display:none}.universal-graph{height:380px}.graph-window{white-space:nowrap;max-width:calc(100% - 28px);top:auto;bottom:57px;overflow:hidden}.graph-legend{gap:8px;right:14px;overflow-x:auto}.graph-legend span{white-space:nowrap}.graph-cursor{font-size:11px}.graph-summary{gap:12px;padding:18px}.summary-stat strong{font-size:27px}.analysis-heading{margin-top:48px}.analysis-card summary{grid-template-columns:28px 1fr 20px;min-height:116px;padding:18px}.confidence{grid-column:2}.analysis-card summary>i{grid-area:1/3}.card-detail{padding:0 18px 20px}.panel,.solver{padding:22px 15px}.equation-input{gap:3px;padding:13px 7px}.equation-input input{width:52px}.metrics{grid-template-columns:1fr}.keypad button{min-height:44px}.seo-content{padding:50px 0}.seo-intro h2{font-size:36px}.seo-intro>p:last-child{font-size:15px}.seo-grid{margin-top:30px}.faq{margin-top:36px}.info-content{padding:52px 0}.info-title{padding-bottom:38px}.info-title h1{font-size:44px}.info-sections>section{grid-template-columns:1fr;gap:9px}.info-sections h2{font-size:19px}footer{grid-template-columns:1fr auto;gap:15px}.footer-links{flex-wrap:wrap;grid-area:2/1/auto/-1;justify-content:flex-start}.footer-note{grid-area:3/1/auto/-1}.studio-signature{grid-area:1/2}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.analysis-card summary>i{transition:none}}@media (max-width:560px){.ad-banner{grid-template-columns:1fr;min-height:118px;margin-bottom:42px}.ad-banner>span{border-right:0;border-bottom:1px solid var(--line);min-height:34px}.ad-banner>div{padding:16px}}.sci-result.has-error{grid-template-columns:1fr;align-items:center;display:grid}.sci-result-math.is-hidden{display:none}.sci-result-error{color:var(--red);font:13px/1.5 ui-monospace,monospace}.legend-intersection{vertical-align:-1px;border:2px solid #f1e66b;background:0 0!important;width:11px!important;height:11px!important}.studio-signature{border-radius:8px;text-decoration:none}.studio-signature:focus-visible{outline:3px solid var(--lime);outline-offset:3px}.function-manager{margin:0 0 12px}.function-tabs{flex-wrap:wrap;align-items:center;gap:8px;padding:4px 2px 8px;display:flex;overflow:visible}.function-tab{border:1px solid var(--line);border-left:5px solid var(--function-color);background:#f6f7f3;flex:none;align-items:center;max-width:100%;display:flex}.function-tab.active{border-color:var(--ink);box-shadow:0 2px 0 var(--function-color)}.function-tab button{border:0;border-left:1px solid var(--line);min-width:42px;min-height:42px;color:var(--ink);cursor:pointer;background:0 0}.function-tab .function-select{border-left:0;padding:0 15px;font:700 14px ui-monospace,monospace}.function-visible{font-size:18px;color:var(--function-color)!important}.function-remove{font-size:21px}.add-function{cursor:pointer;background:0 0;border:1px dashed #657078;flex:none;min-height:44px;padding:0 16px;font-weight:700}.function-manager button:focus-visible{outline:3px solid var(--lime);outline-offset:2px}.system-results{border:1px solid var(--line);background:#f7f8f4;margin:22px 0 0}.system-results summary{cursor:pointer;grid-template-columns:1fr auto auto;align-items:center;gap:14px;min-height:62px;padding:0 20px;list-style:none;display:grid}.system-results summary::-webkit-details-marker{display:none}.system-results summary>span{font-size:18px;font-weight:700}.system-results summary>strong{background:var(--ink);min-width:34px;height:28px;color:var(--lime);place-items:center;padding:0 7px;font:700 12px ui-monospace,monospace;display:grid}.system-results summary>i{font-size:20px;font-style:normal;transition:transform .18s}.system-results[open] summary>i{transform:rotate(45deg)}.system-results-body{padding:0 20px 20px}.system-results p{color:#657078;margin:0}.system-results ul{gap:8px;margin:0;padding:0;list-style:none;display:grid}.system-results li{border-left:4px solid var(--lime);background:#fff;grid-template-columns:1fr auto auto;align-items:center;gap:14px;padding:10px 12px;font:13px ui-monospace,monospace;display:grid}.system-results small{color:#657078}@media (max-width:560px){.system-results li{grid-template-columns:1fr}.function-tabs{margin-inline:0}.add-function{min-width:150px}}.parameter-panel{border:1px solid var(--ink);color:#fff;background:#101720;grid-template-columns:auto repeat(3,minmax(190px,1fr));align-items:center;gap:14px;margin:14px 0 0;padding:16px 18px;display:grid}.parameter-panel>span,.study-kicker{letter-spacing:1.4px;font:700 11px ui-monospace,monospace}.parameter-panel label{grid-template-columns:auto 1fr 72px;align-items:center;gap:9px;display:grid}.parameter-panel b{color:var(--lime);font:13px ui-monospace,monospace}.parameter-panel input[type=range]{accent-color:var(--lime);min-width:90px}.parameter-panel input[type=number]{color:#fff;background:#1c2730;border:1px solid #56626d;width:72px;min-height:38px;padding:0 7px}.parameter-animation{border-top:1px solid #56626d;flex-wrap:wrap;grid-column:1/-1;align-items:end;gap:8px;padding-top:13px;display:flex}.parameter-animation label{flex-direction:column;align-items:stretch;gap:4px;display:flex}.parameter-animation label span{color:#b7c2ca;font:10px ui-monospace,monospace}.parameter-animation select,.parameter-animation button{color:#fff;background:#1c2730;border:1px solid #71808c;min-height:40px;padding:0 12px;font:700 12px ui-monospace,monospace}.parameter-animation button{cursor:pointer}.parameter-animation button:hover,.parameter-animation button[aria-pressed=true]{background:var(--lime);color:var(--ink);border-color:var(--lime)}.inequality-expression{align-items:center;gap:10px;margin:12px 0;display:flex}.inequality-expression code{background:var(--ink);min-width:0;color:var(--lime);text-overflow:ellipsis;flex:1;padding:11px 12px;font:700 16px ui-monospace,monospace;overflow:hidden}.inequality-expression select{border:1px solid var(--ink);background:#fff;min-height:42px;padding:0 12px;font:700 14px ui-monospace,monospace}.inequality-solution{border:1px solid var(--line);background:#f4f7f1;flex-direction:column;gap:6px;padding:12px;display:flex}.inequality-solution span{color:var(--muted);text-transform:uppercase;letter-spacing:1px;font:10px ui-monospace,monospace}.inequality-solution strong{overflow-wrap:anywhere;font:700 14px ui-monospace,monospace}.inequality-card>small{color:var(--muted);margin-top:10px;line-height:1.5;display:block}.inequality-card>small.inequality-verified{color:#256e58}.image-importer{border:1px solid var(--ink);background:#f7f8f4;margin-top:12px}.image-importer>summary{cursor:pointer;letter-spacing:1.2px;justify-content:space-between;align-items:center;min-height:50px;padding:0 16px;font:700 11px ui-monospace,monospace;list-style:none;display:flex}.image-importer>summary::-webkit-details-marker{display:none}.image-importer>summary i{font-size:18px;font-style:normal;transition:transform .18s}.image-importer[open]>summary i{transform:rotate(45deg)}.image-import-body{grid-template-columns:minmax(220px,1fr) minmax(260px,1.4fr);gap:10px;padding:0 16px 16px;display:grid}.image-import-body>p,.image-privacy{color:var(--muted);grid-column:1/-1;margin:0;font-size:12px;line-height:1.5}.image-dropzone{text-align:center;min-height:190px;color:var(--muted);background:#fff;border:1px dashed #71808c;outline:none;flex-direction:column;grid-row:2/6;justify-content:center;align-items:center;gap:10px;padding:12px;display:flex}:is(.image-dropzone:focus-visible,.image-dropzone:hover){border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}.image-dropzone b{color:#256e58;font-size:30px}.image-dropzone img{object-fit:contain;max-width:100%;max-height:290px;display:block}.image-import-actions,.ocr-result-actions{flex-wrap:wrap;gap:7px;display:flex}.image-import-actions button,.image-recognize,.ocr-result-actions button{border:1px solid var(--ink);cursor:pointer;background:#fff;min-height:42px;padding:0 12px;font:700 11px ui-monospace,monospace}.image-recognize,.ocr-result-actions button:first-child{background:var(--ink);color:var(--lime)}.image-import-actions button:hover,.image-recognize:hover:not(:disabled),.ocr-result-actions button:hover{background:var(--lime);color:var(--ink)}.image-recognize:disabled{opacity:.6;cursor:wait}.ocr-progress{background:#dce1d9;height:7px;overflow:hidden}.ocr-progress i{background:#256e58;height:100%;transition:width .15s;display:block}.ocr-result{gap:6px;display:grid}.ocr-result>span{color:var(--muted);font:700 10px ui-monospace,monospace}.ocr-result textarea{resize:vertical;border:1px solid var(--ink);width:100%;min-height:94px;padding:9px;font:13px ui-monospace,monospace}.ocr-result small{color:#a52f47}.image-privacy{border-top:1px solid var(--line);padding-top:5px}@media (max-width:700px){.image-import-body{grid-template-columns:1fr}.image-import-body>p,.image-privacy{grid-column:1}.image-dropzone{grid-row:auto;min-height:170px}.image-import-actions>*{flex:135px}.image-recognize{width:100%}}.study-workbench{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:22px 0;display:grid}.study-card{border:1px solid var(--ink);background:#fff;min-width:0;padding:20px}.study-card>p{color:var(--muted);margin:9px 0 14px;font-size:13px;line-height:1.5}.study-kicker{color:#4f5b64;margin-bottom:14px;display:block}.study-actions{flex-wrap:wrap;gap:7px;display:flex}.study-actions button,.add-derived,.table-controls button,.import-study{border:1px solid var(--ink);min-height:42px;color:var(--ink);cursor:pointer;background:#f7f8f4;place-items:center;padding:0 13px;font:700 12px ui-monospace,monospace;display:grid}.study-actions button:hover,.add-derived:hover,.table-controls button:hover,.import-study:hover{background:var(--lime)}.tangent-control{align-items:center;gap:7px;margin-top:10px;display:flex}.tangent-control span{font:700 13px ui-monospace,monospace}.tangent-control input{border:1px solid var(--ink);width:84px;min-height:42px;padding:0 8px}.tangent-control button{border:1px solid var(--ink);background:var(--ink);min-height:42px;color:var(--lime);cursor:pointer;padding:0 12px}.compare-selectors{grid-template-columns:1fr 1fr;gap:9px;display:grid}.compare-selectors label{color:var(--muted);flex-direction:column;gap:5px;font-size:11px;display:flex}.compare-selectors select{border:1px solid var(--ink);background:#fff;min-height:43px;padding:0 9px}.compare-metrics{border-top:1px solid var(--line);border-left:1px solid var(--line);grid-template-columns:repeat(3,1fr);margin:14px 0;display:grid}.compare-metrics span{border-right:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--muted);flex-direction:column;gap:4px;padding:11px;font-size:10px;display:flex}.compare-metrics b{color:var(--ink);font:22px Georgia,serif}.compare-card details{border-top:1px solid var(--line);margin-top:12px}.compare-card details summary,.study-card>summary{cursor:pointer;justify-content:space-between;align-items:center;gap:15px;min-height:42px;list-style:none;display:flex}.compare-card summary::-webkit-details-marker{display:none}.study-card>summary::-webkit-details-marker{display:none}.compare-card details ul{margin:5px 0 0;padding:0;list-style:none}.compare-card details li{border-top:1px solid var(--line);justify-content:space-between;gap:12px;padding:9px 0;font:11px ui-monospace,monospace;display:flex}.study-card[open]>summary i,.compare-card details[open]>summary i{transform:rotate(45deg)}.study-card summary i,.compare-card summary i{font-style:normal;transition:transform .18s}.value-table-card,.library-card,.persistence-card{grid-column:1/-1}.table-controls{flex-wrap:wrap;align-items:end;gap:8px;margin:14px 0;display:flex}.table-controls label{color:var(--muted);flex-direction:column;gap:4px;font-size:10px;display:flex}.table-controls input{border:1px solid var(--ink);width:95px;min-height:40px;padding:0 8px}.value-table-wrap{border:1px solid var(--line);max-height:360px;overflow:auto}.value-table-wrap table{border-collapse:collapse;width:100%;font:12px ui-monospace,monospace}.value-table-wrap th,.value-table-wrap td{border-right:1px solid var(--line);border-bottom:1px solid var(--line);text-align:right;white-space:nowrap;padding:9px 12px}.value-table-wrap thead{background:var(--ink);color:#fff;z-index:1;position:sticky;top:0}.value-table-wrap tbody tr{cursor:pointer}.value-table-wrap tbody tr:hover,.value-table-wrap tbody tr.selected{background:#f1e66b55}.study-library,.saved-studies{grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px;display:grid}.study-library button,.saved-studies button{border:1px solid var(--line);text-align:left;cursor:pointer;background:#f7f8f4;flex-direction:column;gap:7px;min-height:78px;padding:12px;display:flex}.study-library button:hover,.saved-studies button:hover{border-color:var(--ink);background:var(--lime)}.study-library small,.saved-studies small{color:var(--muted);overflow-wrap:anywhere}.import-study input{opacity:0;width:1px;height:1px;position:absolute}.persistence-card>p{color:var(--ink);background:#c7f36b66;margin:12px 0 0;padding:9px 11px}.regression-tools{border:1px solid var(--line);background:#f2f4ef;grid-template-columns:1fr auto;gap:10px;margin:0 0 14px;padding:12px;display:grid}.regression-tools label{color:var(--muted);flex-direction:column;gap:6px;font:11px ui-monospace,monospace;display:flex}.regression-tools textarea{resize:vertical;border:1px solid var(--ink);min-height:86px;padding:9px;font:12px ui-monospace,monospace}.regression-tools>div{flex-direction:column;gap:7px;display:flex}.regression-tools button{border:1px solid var(--ink);cursor:pointer;background:#fff;min-height:42px;padding:0 12px;font-weight:700}.regression-tools button:hover:not(:disabled){background:var(--lime)}.regression-tools button:disabled{opacity:.45;cursor:not-allowed}@media (max-width:900px){.parameter-panel{grid-template-columns:1fr 1fr}.parameter-panel>span{grid-column:1/-1}.study-workbench{grid-template-columns:1fr}.value-table-card,.library-card,.persistence-card{grid-column:1}.study-library,.saved-studies{grid-template-columns:repeat(2,1fr)}}@media (max-width:560px){.parameter-panel{grid-template-columns:1fr}.parameter-panel>span{grid-column:1}.parameter-panel label{grid-template-columns:1fr 72px}.parameter-panel input[type=range]{grid-column:1}.parameter-animation>*{flex:120px}.parameter-animation label{flex-direction:column;display:flex}.study-card{padding:15px}.compare-metrics,.compare-selectors,.study-library,.saved-studies{grid-template-columns:1fr}.study-actions>*{flex:135px}.compare-card details li{flex-direction:column}.value-table-wrap{max-height:300px}.regression-tools{grid-template-columns:1fr}.regression-tools>div{grid-template-columns:1fr;display:grid}}.axis-step-controls{z-index:5;color:#fff;background:#101720e8;border:1px solid #64727e;grid-template-columns:76px 76px auto;align-items:end;gap:7px;margin:0;padding:9px 10px 10px;display:grid;position:absolute;top:66px;right:14px}.axis-step-controls legend{letter-spacing:1px;color:#c7f36b;padding:0 5px;font:700 10px ui-monospace,monospace}.axis-step-controls label{color:#aab6bf;gap:4px;font:10px ui-monospace,monospace;display:grid}.axis-step-controls input{color:#fff;background:#18232d;border:1px solid #566572;width:76px;height:34px;padding:0 7px;font:12px ui-monospace,monospace}.axis-step-controls input::placeholder{color:#82909a}.axis-step-controls input[aria-invalid=true]{border-color:#ff718d;box-shadow:0 0 0 1px #ff718d}.axis-step-controls button{color:#fff;cursor:pointer;background:#18232d;border:1px solid #64727e;height:34px;padding:0 10px;font:700 11px ui-monospace,monospace}.axis-step-controls button:hover{background:var(--lime);color:var(--ink)}@media (max-width:560px){.axis-step-controls{grid-template-columns:70px 70px auto;top:66px;left:14px;right:auto}.axis-step-controls input{width:70px}}.graph-settings{border-top:1px solid var(--ink);background:#f5f7f2}.graph-settings>summary{cursor:pointer;letter-spacing:1px;justify-content:space-between;align-items:center;min-height:52px;padding:0 18px;font:700 12px ui-monospace,monospace;list-style:none;display:flex}.graph-settings>summary::-webkit-details-marker{display:none}.graph-settings>summary i{font-size:18px;font-style:normal;transition:transform .18s}.graph-settings[open]>summary i{transform:rotate(45deg)}.graph-settings-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;padding:0 16px 16px;display:grid}.graph-settings fieldset{border:1px solid var(--line);background:#fff;flex-direction:column;gap:9px;min-width:0;margin:0;padding:12px;display:flex}.graph-settings legend{letter-spacing:1px;color:var(--muted);padding:0 5px;font:700 10px ui-monospace,monospace}.graph-settings label{justify-content:space-between;align-items:center;gap:10px;font-size:12px;display:flex}.graph-settings input[type=checkbox]{accent-color:#256e58;width:18px;height:18px}.graph-settings input[type=number],.graph-settings select{border:1px solid var(--ink);background:#fff;width:105px;min-height:38px;padding:0 7px}.graph-settings input[type=range]{accent-color:#256e58;min-width:100px}.graph-settings button{border:1px solid var(--ink);cursor:pointer;background:#f7f8f4;min-height:39px;padding:0 11px;font:700 11px ui-monospace,monospace}.graph-settings button:hover{background:var(--lime)}.graph-settings textarea{resize:vertical;border:1px solid var(--ink);width:100%;min-height:98px;padding:8px;font:12px ui-monospace,monospace}.graph-settings>p{color:var(--muted);margin:0;padding:0 17px 15px;font-size:11px}@media (max-width:980px){.graph-settings-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:560px){.graph-settings-grid{grid-template-columns:1fr}.graph-settings label{min-height:38px}.graph-settings input[type=number],.graph-settings select{width:120px}}.series-style{max-height:250px;overflow:auto}.series-style-row{grid-template-columns:minmax(70px,1fr) 38px 54px 54px;align-items:center;gap:5px;display:grid}.series-style-row>span{text-overflow:ellipsis;white-space:nowrap;align-items:center;gap:7px;min-width:0;font-size:11px;display:flex;overflow:hidden}.series-style-row span i{flex:none;width:10px;height:10px;display:block}.series-style-row input[type=color]{border:1px solid var(--ink);cursor:pointer;background:#fff;width:38px;height:32px;padding:2px}.series-style-row input[type=number],.series-style-row select{border:1px solid var(--ink);width:54px;min-height:32px;padding:0 4px}.shade-selectors{grid-template-columns:1fr 1fr;gap:6px;display:grid}.shade-selectors select{width:100%;min-width:0}.export-settings label input[type=checkbox]{order:-1}.export-settings button{margin-top:auto}.view-presets>div{gap:6px;display:grid}.view-presets>div input{border:1px solid var(--ink);width:100%;min-height:38px;padding:0 8px}.view-presets ul{gap:5px;max-height:150px;margin:2px 0 0;padding:0;list-style:none;display:grid;overflow:auto}.view-presets li{grid-template-columns:1fr 36px;gap:4px;display:grid}.view-presets li button{text-align:left;text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.view-presets li button:last-child{text-align:center;padding:0;font-size:18px}.view-presets small{color:var(--muted)}.measurement-tools>p,.integral-tools>p{color:var(--muted);margin:0;font-size:11px;line-height:1.45}.measurement-tools>div,.integral-tools>div{grid-template-columns:1fr 1fr;gap:6px;display:grid}.measurement-tools button:disabled{opacity:.45;cursor:not-allowed}.measurement-tools dl,.integral-tools dl{grid-template-columns:1fr 1fr;gap:5px;margin:0;display:grid}.measurement-tools dl div,.integral-tools dl div{background:#f1f3ee;flex-direction:column;padding:7px;display:flex}.measurement-tools dt,.integral-tools dt{color:var(--muted);font:10px ui-monospace,monospace}.measurement-tools dd,.integral-tools dd{overflow-wrap:anywhere;margin:3px 0 0;font:700 13px ui-monospace,monospace}.measurement-tools small,.integral-tools small{color:var(--muted);line-height:1.5}.integral-tools>div label{gap:4px;display:grid}.integral-tools>div input{border:1px solid var(--ink);width:100%;min-height:38px;padding:0 7px}.integral-tools label input[type=checkbox]{order:-1}.editor-diagnostic{background:#fff0f3;border:1px solid #d94c67;justify-content:space-between;align-items:center;gap:15px;margin:0 14px 14px;padding:12px 13px;display:flex}.editor-diagnostic>div{flex-direction:column;gap:4px;min-width:0;display:flex}.editor-diagnostic b{letter-spacing:1px;color:#a52f47;text-transform:uppercase;font:700 10px ui-monospace,monospace}.editor-diagnostic span{color:#741e31;overflow-wrap:anywhere;font-size:13px}.editor-diagnostic small{color:#6c4a52;font-size:12px}.editor-diagnostic button{color:#741e31;cursor:pointer;background:#fff;border:1px solid #a52f47;flex:none;min-height:40px;padding:0 12px;font-weight:700}.editor-diagnostic button:hover{background:#ffdce4}@media (max-width:560px){.editor-diagnostic{flex-direction:column;align-items:stretch}.editor-diagnostic button{width:100%}}@media print{.site-header,.hero,.math-composer,.formula-options,.parameter-panel,.run-row,.graph-history,.study-workbench,.ad-banner,.tools-section,.seo-content,footer{display:none!important}.function-lab{border:0;padding:0}.section-heading{display:none}.graph-layout{border:0;display:block}.graph-summary{border:1px solid var(--ink);margin-top:12px}.analysis-heading{margin-top:24px}.analysis-card{break-inside:avoid}.analysis-card details{display:block}}.tangent-tools>p{color:var(--muted);margin:0;font-size:11px;line-height:1.45}.tangent-tools dl{grid-template-columns:1fr 1fr;gap:5px;margin:0;display:grid}.tangent-tools dl div{background:#f1f3ee;flex-direction:column;padding:7px;display:flex}.tangent-tools dt{color:var(--muted);font:10px ui-monospace,monospace}.tangent-tools dd{overflow-wrap:anywhere;margin:3px 0 0;font:700 13px ui-monospace,monospace}.tangent-tools small{color:var(--muted);line-height:1.5}.tangent-tools label input[type=checkbox]{order:-1}.tangent-tools button:disabled{opacity:.45;cursor:not-allowed}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}
