/*! tailwindcss v4.3.3 | 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,::backdrop{--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, 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;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::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,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, 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;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:where(:not(iframe)){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]){appearance:button}::file-selector-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}.static{position:static}.container{width:100%}@media(min-width:40rem){.container{max-width:40rem}}@media(min-width:48rem){.container{max-width:48rem}}@media(min-width:64rem){.container{max-width:64rem}}@media(min-width:80rem){.container{max-width:80rem}}@media(min-width:96rem){.container{max-width:96rem}}.block{display:block}.contents{display:contents}.hidden{display:none}.table{display:table}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.\[data-resource\]\:visible:is(data-resource){visibility:visible}}:root{--bg:#f7f8fb;--paper:#fff;--subtle:#eef1f7;--ink:#172235;--muted:#536176;--blue:#345bf4;--blue-soft:#e9efff;--line:#d9dfeb;--terminal:#151c2c;--radius:12px;color-scheme:light;background:var(--bg);color:var(--ink);font-synthesis:none;scroll-behavior:smooth;scroll-padding-top:100px;font-family:Inter,Noto Sans SC,PingFang SC,Microsoft YaHei,system-ui,sans-serif}:root[data-theme=dark]{--bg:#10141d;--paper:#171d29;--subtle:#1c2535;--ink:#edf1f8;--muted:#a6b3c9;--blue:#8ba8ff;--blue-soft:#233354;--line:#303b4f;--terminal:#0b101a;color-scheme:dark}*{box-sizing:border-box}body{margin:0;font-size:15px;line-height:1.75}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}button,a,input,select,textarea,summary{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button:disabled{opacity:.5;cursor:not-allowed}svg{flex-shrink:0}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--blue);outline-offset:4px}h1,h2,h3,p{margin:0}h1,h2,h3{letter-spacing:-.025em;font-weight:650;line-height:1.4}h1{font-size:46px}h2{font-size:31px}h3{font-size:21px}p{color:var(--muted)}[hidden]{display:none!important}.container{width:min(1200px,100% - 80px);margin-inline:auto}.section{padding-block:70px}.narrow{max-width:840px}.eyebrow,.small-label{letter-spacing:.15em;color:var(--muted);font-size:10px;font-weight:650;line-height:1.7}.eyebrow{margin-bottom:15px}.header{z-index:50;background:var(--bg);border-bottom:1px solid var(--line);position:sticky;top:0}.header-inner{align-items:center;gap:24px;height:86px;display:flex}.brand{flex-shrink:0;align-items:center;gap:12px;display:inline-flex}.brand-mark{border:1px solid var(--line);width:38px;height:38px;color:var(--blue);justify-content:center;align-items:center;font-size:28px;font-weight:550;line-height:1;display:flex;position:relative}.brand-mark svg{width:32px;height:32px}.brand-mark>span{font-size:11px;position:absolute;bottom:2px;right:2px}.brand strong{letter-spacing:.06em;font-size:22px;line-height:1.3;display:block}.brand small{letter-spacing:.12em;color:var(--muted);margin-top:4px;font-size:8px;display:block}.desktop-nav{white-space:nowrap;gap:23px;margin-left:auto;font-size:13px;display:flex}.desktop-nav a{color:var(--muted);padding-block:10px;position:relative}.desktop-nav a.active,.desktop-nav a:hover{color:var(--blue)}.desktop-nav a.active:after{content:"";background:var(--blue);height:2px;position:absolute;bottom:-23px;left:0;right:0}.header-actions{align-items:center;gap:3px;display:flex}.icon-button{width:44px;height:44px;color:var(--ink);background:0 0;border:0;border-radius:6px;justify-content:center;align-items:center;display:inline-flex}.icon-button:hover{background:var(--subtle)}.menu-toggle{display:none}.mobile-nav{padding-bottom:20px}.mobile-nav a{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;min-height:50px;padding:10px 3px;display:flex}.skip{background:var(--ink);color:var(--bg);z-index:100;padding:12px;position:fixed;top:-100px;left:20px}.skip:focus{top:10px}.hero{grid-template-columns:1.1fr 1fr;align-items:center;gap:60px;padding-block:80px;display:grid}.hero-copy .eyebrow{letter-spacing:.09em;align-items:center;gap:9px;display:flex}.signal-dot{background:var(--blue);width:6px;height:6px;display:inline-block}.hero h1{letter-spacing:-.045em;font-size:61px;font-weight:700;line-height:1.35}.hero h1 span{color:var(--blue)}.hero-desc{margin-top:25px;font-size:17px;line-height:1.9}.hero-actions{flex-wrap:wrap;align-items:center;gap:10px;margin-top:30px;display:flex}.button{border:1px solid var(--line);background:var(--paper);min-height:47px;color:var(--ink);border-radius:6px;justify-content:center;align-items:center;gap:12px;padding:11px 17px;font-size:13px;font-weight:600;transition:background .15s;display:inline-flex}.button.primary{color:#fff;background:#345bf4;border-color:#345bf4}.button.primary:hover{background:#2447d9}.button.secondary:hover{background:var(--subtle)}.button.quiet{background:0 0;border-color:#0000;padding-inline:0}.button.quiet:hover{color:var(--blue)}.hero-footnote{color:var(--muted);flex-wrap:wrap;align-items:center;gap:12px;margin-top:26px;font-size:10px;display:flex}.hero-footnote i{border-left:1px solid var(--line);height:10px}.frontier-board{border:1px solid var(--line);background:var(--paper);border-radius:12px;overflow:hidden}.board-top,.board-bottom{color:var(--muted);letter-spacing:.12em;justify-content:space-between;align-items:center;padding:17px 23px;font-size:9px;display:flex}.board-top{border-bottom:1px solid var(--line)}.tiny-cross{color:var(--blue);font-size:18px}.board-path{flex-direction:column;gap:18px;padding:24px;display:flex}.board-path>div{grid-template-columns:32px 1fr;align-items:center;column-gap:14px;display:grid}.board-path>div>span{color:var(--blue);grid-row:span 2;font:13px monospace;position:relative}.board-path>div:not(:last-child)>span:after{content:"";border-left:1px solid var(--line);height:33px;position:absolute;top:26px;left:7px}.board-path strong{font-size:15px}.board-path small{color:var(--muted);font-size:10px}.board-terminal{background:var(--terminal);color:#e6edfa;border-radius:7px;margin:0 18px;overflow:hidden}.board-terminal>div:first-child{color:#adbbd3;border-bottom:1px solid #36425b;align-items:center;gap:8px;padding:11px 15px;font-size:10px;display:flex}.board-terminal>div:first-child>span:last-child{margin-left:auto}.terminal-dot{background:#91a9e9;border-radius:50%;width:5px;height:5px}.board-terminal pre{white-space:pre-wrap;margin:0;padding:17px 20px;font:12px/1.9 Consolas,monospace}.syntax-blue{color:#93b2ff}.syntax-string{color:#b9dacb}.terminal-output{color:#b9dacb;border-top:1px solid #36425b;padding:12px 20px;font-size:11px}.terminal-output>span{color:#93b2ff;margin-right:10px}.intro-strip{border-block:1px solid var(--line);background:var(--subtle)}.intro-strip>.container{color:var(--muted);justify-content:space-between;align-items:center;gap:15px;padding-block:17px;font-size:12px;display:flex}.intro-strip a{color:var(--blue);align-items:center;gap:10px;display:flex}.section-heading{justify-content:space-between;align-items:flex-end;gap:28px;margin-bottom:30px;display:flex}.section-heading .eyebrow{margin-bottom:9px}.section-heading p{margin-top:12px;font-size:14px}.text-link{color:var(--blue);align-items:center;gap:8px;min-height:44px;font-size:13px;display:inline-flex}.text-link:hover{text-underline-offset:4px;text-decoration:underline}.tool-grid,.article-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:21px;display:grid}.tool-card,.article-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);flex-direction:column;min-width:0;height:100%;padding:26px;transition:border-color .15s,transform .15s;display:flex}.tool-card:hover,.article-card:hover{border-color:var(--blue);transform:translateY(-3px)}.tool-card-icon{background:var(--blue-soft);width:48px;height:48px;color:var(--blue);border-radius:9px;justify-content:center;align-items:center;margin-bottom:25px;display:flex}.tool-card .small-label{font-size:9px}.tool-card h3,.tool-card h2{margin-top:8px;font-size:21px}.tool-card p{margin-top:13px;font-size:13px;line-height:1.9}.tool-card-bottom,.card-bottom{border-top:1px solid var(--line);color:var(--muted);justify-content:space-between;align-items:center;gap:8px;margin-top:auto;padding-top:19px;font-size:10px;display:flex}.tool-card p+.tool-card-bottom{margin-top:26px}.tool-card-bottom svg,.card-bottom svg{color:var(--blue)}.tool-detail{color:var(--muted);margin:20px 0;font-size:11px}.mechanism-note{color:var(--muted);margin-top:20px;font-size:11px}.learning-band{background:var(--subtle);border-block:1px solid var(--line)}.learning-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;display:grid}.learning-card{background:var(--paper);border:1px solid var(--line);border-radius:12px;align-items:flex-start;gap:22px;padding:31px;display:flex}.learning-code{color:var(--blue);border-right:1px solid var(--line);flex-direction:column;min-width:85px;padding-right:20px;font:32px/1.5 Consolas,monospace;display:flex}.learning-code>span{letter-spacing:.09em;color:var(--muted);margin-top:6px;font:8px/1.7 system-ui}.pill{background:var(--blue-soft);color:var(--blue);border-radius:4px;align-items:center;padding:4px 9px;font-size:10px;line-height:1.7;display:inline-flex}.learning-card h3{margin-top:16px;font-size:22px}.learning-card p{margin-top:13px;font-size:13px;line-height:1.9}.learning-card .text-link{margin-top:16px;font-size:12px}.card-top{justify-content:space-between;align-items:center;margin-bottom:30px;display:flex}.card-symbol{color:var(--muted);font:23px Consolas,monospace}.article-card h3{font-size:20px;line-height:1.6}.article-card p{margin:13px 0 26px;font-size:13px;line-height:1.85}.card-bottom{margin-top:auto;font-size:11px}.about-promo{grid-template-columns:1fr 1fr;gap:16px 60px;padding:20px 0 70px;display:grid}.about-promo>.eyebrow{grid-column:span 2}.about-promo h2{font-size:38px;line-height:1.55}.about-promo p{font-size:15px;line-height:1.95}.about-promo .text-link{margin-top:15px}footer{background:var(--subtle);border-top:1px solid var(--line);padding:40px 0 24px}.footer-top{justify-content:space-between;align-items:center;gap:24px;display:flex}.footer-top p{margin-top:15px;font-size:12px}.footer-links{color:var(--muted);gap:25px;font-size:12px;display:flex}.footer-bottom{border-top:1px solid var(--line);color:var(--muted);justify-content:space-between;gap:18px;margin-top:32px;padding-top:20px;font-size:10px;display:flex}.page-heading{max-width:830px;margin-bottom:40px}.page-heading h1{margin-bottom:15px;font-size:41px}.page-heading p{font-size:15px;line-height:1.9}.page-heading .eyebrow{margin-bottom:12px}.breadcrumb{color:var(--muted);margin-bottom:22px;font-size:12px}.breadcrumb a:hover{text-decoration:underline}.notice{border:1px solid var(--line);background:var(--subtle);border-radius:10px;margin-top:30px;padding:23px 27px}.notice strong{font-size:14px}.notice p{margin-top:7px;font-size:13px;line-height:1.9}.legacy-tool-link{color:var(--muted);flex-wrap:wrap;gap:20px;margin-top:30px;font-size:12px;display:flex}.legacy-tool-link a{color:var(--blue);text-decoration:underline}.course-top{flex-wrap:wrap;align-items:center;gap:16px;margin-bottom:32px;display:flex}.course-count{color:var(--muted);margin-left:auto;font-size:13px}.lesson-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.lesson-card{border:1px solid var(--line);background:var(--paper);border-radius:9px;align-items:center;gap:20px;padding:22px;display:flex}.lesson-number{color:var(--blue);font:25px Consolas,monospace}.lesson-card h3{font-size:17px}.lesson-card p{margin-top:5px;font-size:12px}.lesson-card>svg{color:var(--blue);margin-left:auto}.lesson-card:hover{border-color:var(--blue)}.curriculum-heading{margin-top:60px;margin-bottom:23px}.curriculum-list{flex-direction:column;gap:17px;display:flex}.curriculum-stage{border:1px solid var(--line);background:var(--paper);border-radius:10px;grid-template-columns:45px 1fr;gap:16px;padding:27px;display:grid}.stage-number{color:var(--blue);font:20px Consolas,monospace}.stage-title{justify-content:space-between;align-items:center;gap:12px;display:flex}.curriculum-stage h3{font-size:22px}.curriculum-stage p{margin-top:12px;font-size:13px}.curriculum-stage .prereq{font-size:12px}.curriculum-topics{flex-wrap:wrap;gap:8px;margin-top:18px;display:flex}.curriculum-topics span{color:var(--muted);background:var(--subtle);border-radius:4px;padding:6px 9px;font-size:11px}.stage-links{flex-direction:column;gap:8px;margin-top:17px;display:flex}.stage-links a{color:var(--blue);align-items:center;gap:8px;min-height:32px;font-size:13px;display:inline-flex}.stage-note{font-size:11px!important}.construction{background:var(--subtle);border:1px solid var(--line);color:var(--muted);white-space:nowrap;border-radius:4px;padding:4px 9px;font-size:10px}.route-tabs{flex-wrap:wrap;gap:12px;margin-bottom:30px;display:flex}.route-tabs a{border:1px solid var(--line);min-height:44px;color:var(--blue);border-radius:6px;padding:10px 15px;font-size:13px}.article-page{padding-top:40px}.article-header{max-width:875px;padding-bottom:32px}.article-header h1{margin-top:17px;font-size:38px;line-height:1.5}.article-summary{margin-top:15px;font-size:16px;line-height:1.9}.meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:12px;font-size:11px;display:flex}.article-info{color:var(--muted);flex-wrap:wrap;gap:12px;margin-top:18px;font-size:11px;display:flex}.tags{color:var(--blue);flex-wrap:wrap;gap:12px;margin-top:12px;font-size:12px;display:flex}.tags a{align-items:center;min-height:32px;display:flex}.reading-layout{border-top:1px solid var(--line);grid-template-columns:minmax(0,800px) 1fr;gap:60px;padding-top:30px;display:grid}.prose{min-width:0;color:var(--ink);font-size:16px;line-height:1.95}.prose h2{margin:36px 0 16px;font-size:25px}.prose h2:first-child{margin-top:8px}.prose h3{margin:26px 0 13px;font-size:20px}.prose p{color:var(--muted);margin:16px 0}.prose strong{color:var(--ink)}.prose a{color:var(--blue);text-underline-offset:4px;text-decoration:underline}.prose ul,.prose ol{list-style:revert;margin:20px 0;padding-left:25px}.prose li{margin:8px 0}.prose blockquote{border-left:3px solid var(--blue);background:var(--blue-soft);border-radius:0 8px 8px 0;margin:24px 0;padding:5px 23px}.prose code{background:var(--subtle);overflow-wrap:anywhere;border-radius:4px;padding:2px 5px;font:.87em Consolas,monospace}.prose pre{background:var(--terminal);color:#e6edfa;border-radius:9px;max-width:100%;margin:0;padding:48px 20px 22px;font:13px/1.85 Consolas,monospace;overflow-x:auto}.prose pre code{font:inherit;overflow-wrap:normal;background:0 0;padding:0}.prose table{border-collapse:collapse;max-width:100%;margin-block:20px;font-size:13px;display:block;overflow-x:auto}.prose th,.prose td{border:1px solid var(--line);text-align:left;padding:10px 14px}.code-wrapper{margin:24px 0;position:relative}.copy-button{color:#ecf1fa;background:#25314a;border:1px solid #4f5f7a;border-radius:5px;min-height:34px;padding:5px 10px;font-size:11px;position:absolute;top:7px;right:9px}.katex-display{max-width:100%;padding:12px 2px;overflow:auto hidden}.prose .katex{font-size:1.05em}.toc{align-self:start;font-size:12px;position:sticky;top:115px}.toc strong{margin-bottom:14px;font-size:14px;display:block}.toc nav{border-left:1px solid var(--line);flex-direction:column;gap:12px;padding-left:16px;display:flex}.toc nav a{color:var(--muted)}.toc nav a:hover{color:var(--blue)}.toc-back{color:var(--blue);margin-top:25px;display:block}.article-license{border:1px solid var(--line);color:var(--muted);border-radius:8px;margin-top:40px;padding:20px;font-size:12px}.lesson-actions{background:var(--subtle);border:1px solid var(--line);border-radius:8px;flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px;padding:17px;display:flex}.completion-label{cursor:pointer;align-items:center;gap:9px;min-height:44px;font-size:13px;display:flex}.completion-label input{accent-color:#345bf4;width:19px;height:19px}.lesson-navigation{grid-template-columns:1fr 1fr;gap:14px;margin-top:30px;display:grid}.lesson-navigation a{border:1px solid var(--line);color:var(--blue);border-radius:8px;flex-direction:column;padding:18px;font-size:14px;display:flex}.lesson-navigation a:last-child{text-align:right}.lesson-navigation small{color:var(--muted);margin-bottom:6px;font-size:10px}.related{border-top:1px solid var(--line);margin-top:45px}.filter-panel{border:1px solid var(--line);background:var(--subtle);border-radius:8px;align-items:flex-end;gap:17px;padding:20px;display:flex}.filter-panel label{flex-direction:column;flex:1;gap:7px;font-size:12px;display:flex}.filter-panel select,.tool-form select,.tool-form input,.tool-form textarea,.plot-controls input{background:var(--paper);border:1px solid var(--line);width:100%;min-height:45px;color:var(--ink);border-radius:6px;padding:10px 12px}.reset-button{border:1px solid var(--line);background:var(--paper);border-radius:6px;min-height:45px;padding:9px 15px;font-size:12px}.results-line{color:var(--muted);justify-content:space-between;margin:24px 0;font-size:12px;display:flex}.empty-state{text-align:center;border:1px dashed var(--line);border-radius:10px;padding:60px 20px}.empty-state p{margin-top:12px}.search-page{max-width:930px;min-height:65vh}.search-suggestions{color:var(--muted);flex-wrap:wrap;gap:12px;margin-top:28px;font-size:12px;display:flex}.search-suggestions a{color:var(--blue);border:1px solid var(--line);border-radius:6px;min-height:44px;padding:8px 12px}#search{--pagefind-ui-primary:var(--blue);--pagefind-ui-text:var(--ink);--pagefind-ui-background:var(--paper);--pagefind-ui-border:var(--line);--pagefind-ui-font:inherit;--pagefind-ui-border-radius:8px;--pagefind-ui-tag:var(--subtle)}.tool-workspace{grid-template-columns:330px minmax(0,1fr);align-items:start;gap:25px;display:grid}.panel{background:var(--paper);border:1px solid var(--line);border-radius:10px;min-width:0;padding:25px}.tool-form{flex-direction:column;gap:18px;display:flex}.field{flex-direction:column;gap:8px;font-size:13px;font-weight:600;display:flex}.field small,.input-hint{color:var(--muted);font-size:11px;font-weight:400;line-height:1.85}.two-fields{grid-template-columns:1fr 1fr;gap:12px;display:grid}.tool-form textarea{resize:vertical;min-height:100px}.tool-form h2,.panel-title{font-size:21px}.tool-output{min-height:300px}.tool-status{min-height:22px;color:var(--muted);overflow-wrap:anywhere;margin-top:12px;font-size:12px}.tool-status.error{color:#a73838}[data-theme=dark] .tool-status.error{color:#ffb3b3}.output-heading{justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;display:flex}.output-actions{flex-wrap:wrap;gap:8px;margin-top:22px;display:flex}.small-button{border:1px solid var(--line);min-height:42px;color:var(--ink);background:var(--paper);border-radius:5px;padding:8px 13px;font-size:12px}.small-button:hover{background:var(--subtle)}.small-button.danger{color:#a73838}[data-theme=dark] .small-button.danger{color:#ffb3b3}.progress-line{color:var(--muted);justify-content:space-between;gap:10px;margin:14px 0 8px;font-size:12px;display:flex}.progress-bar{background:var(--subtle);border-radius:5px;width:100%;height:6px;overflow:hidden}.progress-bar>span{background:var(--blue);width:0;height:100%;transition:width .15s;display:block}.plan-stages{grid-template-columns:1fr 1fr;gap:10px;margin:24px 0;display:grid}.plan-stage{background:var(--subtle);border-radius:6px;padding:14px;font-size:12px}.plan-stage strong{color:var(--ink);display:block}.plan-stage p{margin-top:5px;font-size:11px}.day-list{flex-direction:column;gap:12px;display:flex}.day-task{border:1px solid var(--line);border-radius:7px;align-items:flex-start;gap:12px;padding:16px;display:flex}.day-task input{accent-color:#345bf4;flex-shrink:0;width:20px;height:20px;margin-top:5px}.day-task strong{font-size:14px}.day-task p{white-space:pre-line;margin-top:5px;font-size:12px;line-height:1.85}.day-task.completed{background:var(--subtle)}.day-task.completed strong{color:var(--muted)}.storage-note{color:var(--muted);margin-top:20px;font-size:11px}.text-workspace{grid-template-columns:1fr 1fr;gap:24px;display:grid}.text-input{font-size:14px;font-weight:400;line-height:1.9;min-height:340px!important}.text-output{white-space:pre-wrap;overflow-wrap:anywhere;background:var(--subtle);tab-size:4;border-radius:6px;min-height:280px;max-height:650px;margin:0;padding:18px;font:14px/1.9 inherit;overflow:auto}.statistics{grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:22px;display:grid}.statistics>div{background:var(--subtle);color:var(--muted);text-align:center;border-radius:6px;padding:12px;font-size:10px}.statistics strong{color:var(--ink);font-size:23px;display:block}.mode-select{align-items:center;gap:15px;margin-bottom:17px;font-size:12px;display:flex}.mode-select label{cursor:pointer;align-items:center;gap:7px;min-height:40px;display:flex}.mode-select input{accent-color:#345bf4}.runner-workspace{grid-template-columns:1.3fr 1fr;align-items:stretch;gap:22px;display:grid}.runner-editor,.runner-console{border:1px solid var(--line);background:var(--paper);border-radius:10px;min-width:0;overflow:hidden}.editor-toolbar,.console-toolbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding:16px 19px;font-size:12px;display:flex}.editor-toolbar select{border:1px solid var(--line);background:var(--paper);max-width:200px;min-height:40px;color:var(--ink);border-radius:5px;padding:7px 8px;font-size:12px}.code-editor{background:var(--terminal);grid-template-columns:37px minmax(0,1fr);min-height:330px;display:grid}.line-numbers{text-align:right;color:#9eacc5;-webkit-user-select:none;user-select:none;background:#ffffff04;max-height:360px;padding:17px 7px;font:13px/1.9 Consolas,monospace;overflow:hidden}.code-editor textarea{resize:vertical;background:var(--terminal);color:#e6edfa;outline-offset:-4px;tab-size:4;white-space:pre;border:0;width:100%;min-height:330px;max-height:700px;padding:17px 15px;font:13px/1.9 Consolas,monospace;overflow:auto}.runner-buttons{border-top:1px solid var(--line);flex-wrap:wrap;gap:10px;padding:17px;display:flex}.runner-output{white-space:pre-wrap;overflow-wrap:anywhere;min-height:330px;max-height:650px;color:var(--ink);margin:0;padding:20px;font:13px/1.85 Consolas,monospace;overflow:auto}.runner-label{margin:0 0 10px;font-size:12px}.runner-note{margin-top:20px}.runner-save{min-height:44px;color:var(--muted);align-items:center;gap:9px;margin-top:12px;font-size:12px;display:flex}.runner-save input{accent-color:#345bf4;width:18px;height:18px}.runtime-info{color:var(--muted);overflow-wrap:anywhere;max-width:250px;font-size:10px}.tool-explanation{max-width:820px;margin-top:36px}.tool-explanation h2{font-size:23px}.tool-explanation p{margin:12px 0;font-size:13px}.plot-layout{grid-template-columns:290px minmax(0,1fr);gap:24px;display:grid}.plot-controls{border:1px solid var(--line);background:var(--paper);border-radius:10px;flex-direction:column;gap:15px;padding:25px;display:flex}.plot-controls label{font-size:12px}.plot-controls>.pill{align-self:start}.range-inputs{gap:10px;display:flex}.range-inputs label{flex:1;min-width:0}.range-inputs input{margin-top:7px}.preset-buttons{flex-wrap:wrap;gap:8px;display:flex}.preset-buttons button{border:1px solid var(--line);background:var(--subtle);border-radius:5px;min-height:42px;padding:8px 10px;font-size:11px}.plot-panel{border:1px solid var(--line);color:#172235;background:#fff;border-radius:10px;min-width:0;overflow:hidden}.plot-caption{border-bottom:1px solid #d9dfeb;justify-content:space-between;gap:12px;padding:18px;font-size:11px;display:flex}.plot-caption span:first-child{overflow-wrap:anywhere}#plot{width:100%;height:420px;display:block}.plot-summary{color:#536176;border-top:1px solid #d9dfeb;padding:15px 18px;font-size:11px}#plot-message{color:var(--muted);font-size:12px}.empty-page{min-height:60vh;padding-block:100px}.empty-page h1{margin-bottom:20px;font-size:38px}.delivery-links{flex-wrap:wrap;gap:12px;margin:24px 0;display:flex}.resource-grid{grid-template-columns:1fr 1fr;gap:20px;display:grid}.resource-card{border:1px solid var(--line);background:var(--paper);border-radius:10px;padding:24px}.resource-card h3{margin-top:13px;font-size:20px}.resource-card p{margin-top:10px;font-size:13px}.resource-card details{margin-top:15px;font-size:13px}.resource-card summary{cursor:pointer;min-height:44px;color:var(--blue);align-items:center;display:flex}.resource-card details a{color:var(--blue);margin-top:15px;text-decoration:underline;display:block}.resource-heading{margin-top:55px}.subheading{margin-bottom:20px;font-size:24px}@media(max-width:1150px){.container{width:calc(100% - 48px)}.desktop-nav{gap:15px;font-size:12px}.header-inner{gap:18px}.brand strong{font-size:20px}.brand small{font-size:7px}.hero{gap:35px}.hero h1{font-size:51px}.hero-actions{gap:8px}.button{padding:11px 14px}.learning-card{gap:17px;padding:24px}.learning-code{min-width:70px}.tool-card,.article-card{padding:23px}}@media(max-width:950px){.desktop-nav{display:none}.header-actions{margin-left:auto}.menu-toggle{display:inline-flex}.header-inner{height:74px}.hero{gap:25px;padding-block:55px}.hero h1{font-size:43px}.hero-desc{font-size:15px}.hero-actions>.button{font-size:12px}.tool-grid,.article-grid{gap:15px}.tool-card,.article-card{padding:20px}.tool-card h3,.tool-card h2{font-size:19px}.learning-code{min-width:60px;padding-right:15px;font-size:26px}.learning-card h3{font-size:20px}.reading-layout{grid-template-columns:minmax(0,1fr);gap:0}.toc{display:none}.tool-workspace{grid-template-columns:280px minmax(0,1fr)}.panel{padding:20px}.plan-stages{grid-template-columns:1fr}.runner-workspace{grid-template-columns:1fr 1fr}.editor-toolbar{flex-wrap:wrap}.footer-links{gap:18px}}@media(max-width:700px){.container{width:calc(100% - 36px)}.header-inner{gap:8px;height:70px}.brand{gap:8px}.brand-mark{width:31px;height:33px}.brand-mark svg{width:27px;height:27px}.brand strong{font-size:19px}.brand small{letter-spacing:.09em;font-size:6.5px}.header-actions{gap:0}.icon-button{width:40px;height:44px}.hero{grid-template-columns:1fr;gap:32px;padding-top:42px;padding-bottom:35px}.hero h1{font-size:43px;line-height:1.37}.hero-copy .eyebrow{letter-spacing:.05em;font-size:8px}.hero-desc{margin-top:21px;font-size:15px}.hero-actions{gap:9px;margin-top:23px}.hero-actions .button{gap:9px;min-height:46px;font-size:12px}.hero-footnote{gap:9px;margin-top:22px;font-size:9px}.board-top,.board-bottom{padding:15px 20px;font-size:8px}.board-path{padding:22px}.board-terminal pre{padding:15px;font-size:11px}.board-terminal{margin-inline:15px}.terminal-output{padding:10px 15px;font-size:10px}.intro-strip>.container{flex-direction:column;align-items:flex-start;gap:5px;padding-block:14px;font-size:11px}.intro-strip a{min-height:34px}.section{padding-block:40px}.section-heading{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:23px}.section-heading h2{font-size:27px;line-height:1.45}.section-heading p{margin-top:10px;font-size:13px}.section-heading .eyebrow{font-size:9px}.section-heading .text-link{min-height:34px;font-size:12px}.tool-grid,.article-grid,.learning-grid,.lesson-grid{grid-template-columns:1fr}.tool-card,.article-card{padding:25px}.tool-card-icon{margin-bottom:21px}.tool-card h3,.tool-card h2{font-size:22px}.tool-card p{font-size:14px}.tool-card-bottom{font-size:11px}.learning-card{gap:20px;padding:25px}.learning-code{min-width:70px;font-size:31px}.learning-card h3{font-size:21px}.about-promo{grid-template-columns:1fr;gap:17px;padding-top:4px;padding-bottom:43px}.about-promo>.eyebrow{grid-column:auto;margin-bottom:0}.about-promo h2{font-size:32px}.about-promo p{font-size:14px}.footer-top{flex-direction:column;align-items:flex-start;gap:24px}.footer-links{flex-wrap:wrap;gap:18px;font-size:11px}.footer-bottom{flex-direction:column;gap:8px;margin-top:25px;font-size:10px}.page-heading h1{font-size:32px;line-height:1.45}.page-heading p{font-size:14px}.page-heading{margin-bottom:29px}.notice{margin-top:23px;padding:20px}.lesson-card{gap:15px;padding:20px}.lesson-card h3{font-size:16px}.lesson-number{font-size:23px}.course-count{margin-left:0}.curriculum-heading{margin-top:38px}.curriculum-stage{grid-template-columns:26px 1fr;gap:13px;padding:21px}.stage-title{flex-wrap:wrap;align-items:flex-start}.curriculum-stage h3{font-size:21px}.stage-number{font-size:17px}.article-page{padding-top:27px}.article-header h1{font-size:28px;line-height:1.55}.article-summary{font-size:15px}.article-info{gap:5px 10px;font-size:11px}.article-header{padding-bottom:25px}.prose{font-size:15px;line-height:1.95}.prose h2{font-size:22px}.prose h3{font-size:19px}.prose pre{padding-inline:14px;font-size:12px}.prose .katex{font-size:1em}.prose blockquote{padding-inline:17px}.reading-layout{padding-top:20px}.lesson-navigation a{padding:15px;font-size:12px}.filter-panel{flex-wrap:wrap;gap:12px;padding:16px}.filter-panel label{flex:calc(50% - 12px)}.reset-button{flex:1}.results-line{font-size:11px}.tool-workspace,.text-workspace,.runner-workspace,.plot-layout{grid-template-columns:1fr}.panel{padding:22px}.plan-stages{grid-template-columns:1fr 1fr}.plan-stage{padding:12px}.day-task{gap:10px;padding:14px}.statistics{gap:7px}.statistics>div{padding:10px 3px;font-size:9px}.statistics strong{font-size:21px}.text-input{min-height:270px!important}.text-output{min-height:240px;font-size:13px}.editor-toolbar{flex-wrap:nowrap;padding:13px 16px}.editor-toolbar select{max-width:170px;font-size:11px}.code-editor,.code-editor textarea{min-height:280px}.code-editor textarea,.line-numbers{font-size:12px}.runner-output{min-height:200px;max-height:450px;font-size:12px}.runner-buttons{gap:8px;padding:14px}.runner-buttons .button{padding-inline:13px;font-size:12px}.runner-buttons .small-button{padding-inline:11px}.console-toolbar{padding:14px 16px}.runtime-info{max-width:170px;font-size:9px}.plot-controls{padding:21px}#plot{height:320px}.plot-caption{padding:14px;font-size:10px}.empty-page{padding-block:75px}.empty-page h1{font-size:30px}.search-suggestions>span{width:100%}.resource-grid{grid-template-columns:1fr}}@media(max-width:360px){.brand small{font-size:6px}.hero h1{font-size:39px}.hero-actions{flex-direction:column;align-items:stretch}.hero-actions>.button.quiet{justify-content:flex-start;padding-left:0}.plan-stages{grid-template-columns:1fr}.learning-card{gap:15px;padding:22px}}@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,:before,:after{transition:none!important;animation:none!important}}.line-numbers{margin:0}.small-button{min-height:44px}.copy-button{min-height:44px;top:4px}.mode-select label{min-height:44px}@media(max-width:700px){.icon-button{width:44px}}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}.engine-boundary{border-left:3px solid var(--blue);background:var(--blue-soft);padding:20px 24px;border-radius:0 8px 8px 0;margin-bottom:24px;font-size:14px;line-height:1.9}.engine-boundary p{margin:8px 0}.engine-boundary summary{cursor:pointer;min-height:44px;display:flex;align-items:center;color:var(--blue)}.engine-page{max-width:1120px}.engine-input{margin-bottom:30px}.understand-editor{font:14px/1.8 Consolas,monospace;min-height:230px!important;tab-size:4}.engine-page #understanding-results>.panel{margin:26px 0}.lab-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:22px}.lab-heading h2{font-size:25px;margin:7px 0}.lab-heading .field{max-width:280px}.lab-heading select,.lab-options select,.lab-options input,.explanation-panel select{background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:5px;min-height:44px;max-width:100%;padding:8px 11px;font-size:13px}.explanation-modes{display:flex;gap:8px;flex-wrap:wrap}.explanation-modes [aria-pressed=true]{background:var(--blue-soft);border-color:var(--blue);color:var(--blue)}.knowledge-text{font-size:17px;line-height:2.1;margin:24px 0;color:var(--ink);min-height:100px}.diagnostic-box{padding:20px;background:var(--subtle);border-radius:7px;margin-top:22px;font-size:14px;line-height:1.9}.diagnostic-box p{margin:8px 0}.trace-lab{border:1px solid var(--line);border-radius:12px;padding:24px;background:var(--paper);min-width:0;margin-block:24px}.lab-options{display:flex;gap:12px;align-items:end;flex-wrap:wrap;margin-bottom:20px}.lab-options label{display:flex;flex-direction:column;gap:7px;font-size:12px}.lab-options input{width:94px}.lab-options .input-hint{flex-basis:100%}.trace-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:18px;align-items:start}.trace-code{overflow:auto;max-height:510px;background:var(--terminal);border-radius:7px;padding:14px 0;color:#e6edfa;font:13px/2 Consolas,monospace;tab-size:4}.trace-line{display:flex;min-width:max-content;padding-right:16px;min-height:28px;border-left:3px solid transparent}.trace-line.current{background:#345bf444;border-left-color:#a8beff}.trace-line-number{display:inline-block;min-width:35px;text-align:right;padding-right:12px;color:#aebad1;user-select:none}.trace-line code{white-space:pre;background:none;padding:0;font:inherit}.token-keyword{color:#a8beff}.token-string{color:#bce4bb}.token-number{color:#ffd39b}.trace-state{min-width:0}.trace-state h3{font-size:14px;margin:0 0 12px}.trace-state h3:not(:first-child){margin-top:16px}.scope-box{border:1px solid var(--line);border-radius:7px;margin-bottom:10px;padding:14px;font-size:13px}.scope-box h4{font-size:11px;color:var(--muted);margin-bottom:8px}.variable-row{padding:9px 0;border-top:1px solid var(--line);display:flex;gap:7px;align-items:center;flex-wrap:wrap;overflow-wrap:anywhere}.variable-row>code{flex-basis:100%;font-size:12px;white-space:pre-wrap}.variable-kind{font-size:10px;color:var(--muted);margin-left:auto}.variable-row>small{font-size:10px;color:var(--blue)}.list-cells{display:flex;gap:5px;flex-wrap:wrap;flex-basis:100%}.list-cells>div{border:1px solid var(--line);background:var(--subtle);border-radius:4px;padding:5px 9px;max-width:100%;overflow-wrap:anywhere}.list-cells small{display:block;color:var(--muted);font-size:9px}.list-cells code{font-size:11px}.trace-output{white-space:pre-wrap;overflow-wrap:anywhere;background:var(--subtle);padding:15px;border:1px solid var(--line);border-radius:7px;min-height:85px;max-height:220px;overflow:auto;font:13px/1.8 Consolas,monospace;margin:0}.trace-controls{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:20px}.trace-controls>span{font-size:12px;color:var(--muted);margin-left:auto}.trace-explanation{font-size:14px;padding:15px;background:var(--blue-soft);border-radius:7px;margin-top:16px;color:var(--ink);line-height:1.9;min-height:58px}.trace-explanation[data-branch=true]:before{content:"✓ ";color:var(--blue)}.trace-explanation[data-branch=false]:before{content:"↳ ";color:var(--blue)}button:disabled{opacity:.45;cursor:not-allowed}.practice-panel{border:1px solid var(--line);border-radius:10px;padding:25px;margin-block:24px;background:var(--paper);font-size:14px;min-width:0}.practice-panel h2{font-size:23px;margin:10px 0}.practice-panel>p{line-height:1.9}.question-card{padding:22px 0;border-bottom:1px solid var(--line)}.question-card fieldset{border:0;padding:0;min-width:0}.question-card legend{font-weight:600;line-height:1.9;margin-bottom:12px}.question-card label{display:flex;gap:10px;align-items:center;min-height:44px;cursor:pointer;color:var(--muted)}.question-card input{accent-color:var(--blue);width:18px;height:18px}.question-card button{margin-top:10px}.question-card [data-answer]{margin-top:12px;color:var(--blue);line-height:1.9;min-height:20px}.practice-selector{margin-top:35px}.practice-selector h2{font-size:25px}.practice-selector p{font-size:14px;line-height:1.9;margin-top:12px}#line-explanation-list{padding-left:24px;margin-top:20px}#line-explanation-list li{margin:15px 0;font-size:13px}#line-explanation-list code{display:block;overflow-wrap:anywhere;white-space:pre-wrap}#line-explanation-list p{margin-top:7px;line-height:1.9;color:var(--muted)}.profile-panel{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-block:30px}.profile-panel h2{font-size:25px;margin:9px 0}.profile-panel p{font-size:14px;line-height:1.9}.profile-panel ol{grid-column:1/-1;padding-left:25px;list-style:decimal;font-size:14px;color:var(--blue);line-height:2.5}.profile-panel .storage-note{grid-column:1/-1;font-size:11px;margin:0}.understanding-feedback{padding:22px;background:var(--subtle);border:1px solid var(--line);border-radius:8px;margin-top:25px}.understanding-feedback h2{font-size:20px;margin:0 0 12px}.understanding-feedback button[aria-pressed=true]{border-color:var(--blue);background:var(--blue-soft);color:var(--blue)}.metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-block:25px}.metric-grid>div{padding:25px;border:1px solid var(--line);border-radius:8px;background:var(--paper)}.metric-grid strong{display:block;font-size:27px;margin:12px 0}.metric-grid p{font-size:13px;line-height:1.9}.principle-diagram{display:flex;align-items:stretch;gap:10px;flex-wrap:wrap;margin-block:24px}.principle-diagram>div{flex:1;min-width:120px;border:1px solid var(--line);border-radius:7px;padding:18px;background:var(--paper)}.principle-diagram small{display:block;font-size:11px;color:var(--muted);margin-bottom:8px}.principle-diagram>span{align-self:center;color:var(--blue)}.trace-compact .trace-grid{grid-template-columns:1fr}.trace-compact .lab-heading h2{font-size:20px}.trace-compact .trace-state,.trace-compact .lab-options,.trace-compact .storage-note{display:none}.trace-compact .trace-code{max-height:260px}.trace-compact{margin:0}.trace-compact .lab-heading>.pill{display:none}.trace-compact .trace-controls{gap:6px}.trace-compact .trace-controls button{font-size:11px;padding:8px 10px}.trace-compact .lab-heading{margin-bottom:12px}.trace-compact .trace-explanation{font-size:12px}.trace-compact [data-trace-status]{font-size:10px}.trace-compact .trace-controls>span{font-size:10px}.thez-hero{grid-template-columns:1.1fr 1fr;align-items:center}.thez-hero h1{font-size:60px;letter-spacing:-.04em;line-height:1.25}.thez-hero .hero-actions{max-width:500px}.thez-hero .hero-actions>a{min-height:48px}.resource-filters{margin-block:25px}.resource-audit{font-size:11px;color:var(--muted);line-height:1.9}.quality-matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:20px}.quality-matrix>div{padding:16px;background:var(--subtle);border-radius:6px;font-size:13px}.quality-matrix p{font-size:12px;margin-top:8px}@media(max-width:950px){.thez-hero h1{font-size:46px}.thez-hero{grid-template-columns:1fr 1fr}.trace-grid,.profile-panel{grid-template-columns:1fr}.profile-panel ol,.profile-panel .storage-note{grid-column:auto}.lab-heading{align-items:start;flex-wrap:wrap}.lab-heading h2{font-size:22px}.quality-matrix{grid-template-columns:1fr 1fr}}@media(max-width:700px){.thez-hero{grid-template-columns:1fr}.thez-hero h1{font-size:45px}.engine-boundary{padding:18px;font-size:13px}.trace-lab,.practice-panel{padding:18px}.lab-heading .field{width:100%;max-width:none}.lab-options{gap:9px}.trace-controls .button{font-size:12px}.trace-controls>span{width:100%;margin:0}.trace-code{font-size:12px}.knowledge-text{font-size:16px;min-height:150px}.understand-editor{font-size:13px}.explanation-modes .small-button{font-size:11px;padding:8px 10px}.metric-grid,.profile-panel .two-fields,.quality-matrix{grid-template-columns:1fr}.trace-compact .trace-controls>span{width:auto;margin-left:auto}.principle-diagram>div{min-width:100px;padding:14px}.practice-selector h2{font-size:21px}}.resource-filters input{width:100%;min-height:45px;background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:6px;padding:10px 12px}
