/*! 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,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-outline-style:solid;--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{--spacing:.25rem;--default-font-family:var(--font-geist-sans);--default-mono-font-family:var(--font-geist-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,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]){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{.relative{position:relative}.start{inset-inline-start:var(--spacing)}.table{display:table}.grow{flex-grow:1}.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}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.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,)}}:root{--background:#fff;--surface:#fff;--surface-soft:#f7f7f8;--ink:#111114;--muted:#5f636b;--subtle:#8a8f98;--line:#e5e5e7;--blue:#0071e3;--green:#2f9e65;--amber:#b7791f;--shadow:none}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--background);color:var(--ink);font-family:var(--font-geist-sans), Arial, Helvetica, sans-serif;letter-spacing:0;margin:0}button,input,textarea{font:inherit}button{cursor:pointer}.site-shell{min-height:100vh;padding:0}.topbar{z-index:20;-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);background:#ffffffe0;border:0;border-bottom:1px solid #e5e5e7e0;border-radius:0;justify-content:space-between;align-items:center;gap:16px;width:100%;margin:0;padding:10px max(20px,50vw - 740px);display:flex;position:sticky;top:0}.brand-lockup{min-width:230px;color:var(--ink);text-align:left;background:0 0;border:0;align-items:center;gap:10px;padding:6px;display:inline-flex}.brand-mark{color:#fff;background:#111114;border-radius:7px;place-items:center;width:36px;height:36px;font-size:13px;font-weight:700;display:grid}.brand-lockup strong,.brand-lockup small{display:block}.brand-lockup strong{font-size:15px}.brand-lockup small{color:var(--muted);margin-top:2px;font-size:12px}.top-actions{flex-wrap:wrap;justify-content:flex-end;gap:6px;display:flex}.top-actions button,.hero-actions button,.article-actions button,.cross-link button,.inline-command,.view-switch button,.lab-tabs button{min-height:34px;color:var(--muted);background:0 0;border:1px solid #0000;border-radius:8px;font-size:13px;transition:background .16s,border-color .16s,color .16s}.top-actions button{padding:0 12px}.top-actions button:hover,.top-actions button.active{color:var(--ink);background:#f2f2f4}.section-kicker{color:var(--blue);margin:0 0 12px;font-size:12px;font-weight:700}.hero-actions,.article-actions{flex-wrap:wrap;gap:10px;margin-top:24px;display:flex}.hero-actions button,.article-actions button,.inline-command{color:#fff;background:#111114;padding:0 16px}.hero-actions button+button,.article-actions button+button{border-color:var(--line);color:var(--ink);background:#fff}.workspace{background:#fff;grid-template-columns:320px 190px minmax(0,1fr);align-items:start;gap:0;width:min(1480px,100%);margin:0 auto;display:grid}.course-rail,.outline-rail,.reader{box-shadow:none;background:#fff;border:0;border-radius:0}.course-rail,.outline-rail{max-height:calc(100vh - 70px);box-shadow:none;border-top:0;border-bottom:0;border-left:0;border-right:1px solid var(--line);background:#fff;border-radius:0;padding:22px 16px 36px;position:sticky;top:70px;overflow:auto}.rail-header{justify-content:space-between;align-items:baseline;gap:10px;margin-bottom:12px;display:flex}.rail-header span{color:var(--muted);font-size:12px}.rail-header strong{font-size:13px}.view-switch{background:#f1f3f6;border-radius:8px;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:12px;padding:4px;display:grid}.view-switch button{min-height:32px}.view-switch button.selected{color:var(--ink);background:#fff;box-shadow:0 4px 12px #11111414}.course-list{gap:8px;display:grid}.course-list.grouped{gap:10px}.track-group{border:0;border-bottom:1px solid var(--line);background:#fff;border-radius:0;overflow:hidden}.track-group summary{min-height:42px;color:var(--ink);cursor:pointer;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;padding:0 12px;font-size:13px;font-weight:730;list-style:none;display:grid}.track-group summary::-webkit-details-marker{display:none}.track-group summary:before{content:"+";color:var(--blue);font-weight:760}.track-group[open] summary:before{content:"-"}.track-group summary span{min-width:0}.track-group summary strong{color:var(--subtle);justify-self:end;font-size:12px}.track-items{background:#fff;border-top:0;gap:2px;padding:2px 0 8px;display:grid}.catalog-tools{gap:8px;margin-bottom:12px;display:grid}.catalog-tools input{border:1px solid var(--line);width:100%;height:38px;color:var(--ink);background:#fff;border-radius:8px;outline:none;padding:0 12px}.catalog-tools input:focus{border-color:var(--blue)}.filter-pills{flex-wrap:wrap;gap:6px;display:flex}.filter-pills button,.lab-label-row button{border:1px solid var(--line);min-height:30px;color:var(--muted);background:#fff;border-radius:8px;padding:0 10px;font-size:12px}.filter-pills button.active,.lab-label-row button:hover{color:#fff;background:#111114}.course-item{text-align:left;background:0 0;border:1px solid #0000;border-radius:8px;grid-template-columns:34px 1fr;gap:4px 10px;width:100%;padding:12px;display:grid}.course-item:hover,.course-item.active{background:#f5f5f7;border-color:#0000}.course-item span{color:var(--blue);grid-row:span 2;font-size:12px;font-weight:750}.course-item strong{color:var(--ink);font-size:14px;line-height:1.45}.course-item small{color:var(--subtle);font-size:12px}.source-note{background:#f4f7fb;border-radius:8px;margin-top:14px;padding:12px}.source-note.compact{background:#fff}.source-note span,.cross-link span{color:var(--blue);font-size:12px;font-weight:700}.source-note p{color:var(--muted);margin:8px 0 0;font-size:12px;line-height:1.65}.outline-rail ol{color:var(--subtle);gap:8px;margin:0;padding:0 0 0 18px;display:grid}.outline-rail a{color:var(--muted);font-size:13px;text-decoration:none}.outline-rail a:hover{color:var(--ink)}.cross-link{border-top:1px solid var(--line);gap:8px;margin-top:18px;padding-top:14px;display:grid}.cross-link button{border-color:var(--line);color:var(--ink);background:#fff}.reader{min-height:760px;overflow:hidden}.article-panel,.lab-panel,.system-panel{padding:46px 52px 72px}.article-header{border-bottom:1px solid var(--line);padding-bottom:26px}.article-header span{color:var(--blue);font-size:13px;font-weight:700}.article-header h2{letter-spacing:0;max-width:860px;margin:12px 0 0;font-size:clamp(30px,3.2vw,48px);font-weight:760;line-height:1.12}.article-header p{max-width:780px;color:var(--muted);margin:16px 0 0;font-size:17px;line-height:1.8}.course-meta{flex-wrap:wrap;gap:8px;margin-top:18px;display:flex}.course-meta a,.course-meta span{border:1px solid var(--line);min-height:30px;color:var(--muted);background:#fff;border-radius:8px;align-items:center;padding:0 10px;font-size:12px;line-height:1.4;text-decoration:none;display:inline-flex}.course-meta a{color:var(--blue)}.content-flow{gap:38px;max-width:850px;padding-top:30px;display:grid}.content-flow section{scroll-margin-top:120px}.content-flow h3{margin:0 0 12px;font-size:25px;line-height:1.32}.content-flow p,.study-notes,.clean-list,.step-list{color:#252a31;font-size:16px;line-height:1.9}.study-notes{gap:14px;display:grid}.study-notes p{margin:0}.clean-list,.step-list{gap:10px;margin:0;padding-left:22px;display:grid}.asset-block,.prompt-box{border:1px solid var(--line);background:var(--surface-soft);border-radius:8px}.asset-block{padding:18px}.asset-block strong{font-size:17px;line-height:1.7;display:block}.asset-block p{color:var(--muted);margin:10px 0 0}.prompt-box{color:#111114;font-family:var(--font-geist-mono), ui-monospace, SFMono-Regular, Menlo, monospace;padding:18px;font-size:14px;line-height:1.85}.inline-command{margin-top:12px}.signal-strip{flex-wrap:wrap;gap:8px;margin-top:16px;display:flex}.signal-strip span{border:1px solid var(--line);min-height:32px;color:var(--muted);background:#fff;border-radius:8px;align-items:center;padding:0 10px;font-size:13px;display:inline-flex}.bottom-command{margin-top:4px}.lab-grid{grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:16px;padding-top:28px;display:grid}.lab-input,.lab-output{border:1px solid var(--line);background:#fafafa;border-radius:8px;padding:20px}.lab-input label{font-size:13px;font-weight:700;display:block}.lab-input label span{color:var(--subtle);margin-left:6px;font-size:12px;font-weight:500}.lab-field{margin-bottom:20px}.lab-field label{margin-bottom:10px}.lab-label-row{justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px;display:flex}.lab-actions{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.lab-actions button.primary{color:#fff;background:#111114;border-color:#111114}.lab-input textarea{resize:vertical;border:1px solid var(--line);width:100%;min-height:190px;color:var(--ink);background:#fff;border-radius:8px;outline:none;padding:14px;line-height:1.7}.lab-input textarea.material-input{min-height:130px}.lab-input textarea:focus{border-color:var(--blue)}.lab-tabs{flex-wrap:wrap;gap:8px;margin-top:14px;display:flex}.lab-tabs button{border-color:var(--line);color:var(--muted);background:#fff}.lab-tabs button.active{color:#fff;background:#111114}.lab-context{border:0;border-top:1px solid var(--line);background:0 0;border-radius:0;margin-top:14px;padding:16px 0 0}.lab-context strong{font-size:13px;display:block}.lab-context p{color:var(--muted);margin:8px 0 0;line-height:1.7}.output-row{border-bottom:1px solid var(--line);grid-template-columns:94px 1fr;gap:14px;padding:14px 0;display:grid}.output-row:last-child{border-bottom:0}.output-row span{color:var(--green);font-size:13px;font-weight:700}.output-row p{color:#252a31;margin:0;line-height:1.75}.final-result{border-top:1px solid var(--line);margin-top:26px;padding-top:26px}.final-result h3{margin:0;font-size:20px;line-height:1.4}.final-result-heading{justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}.final-result-heading button{border:1px solid var(--line);min-height:32px;color:var(--muted);background:#fff;border-radius:7px;flex:none;padding:0 10px;font-size:12px}.final-result>div{color:#202124;white-space:pre-wrap;font-size:15px;line-height:1.85}.empty-output{border:1px dashed var(--line);background:#fff;border-radius:8px;align-content:center;min-height:320px;padding:18px;display:grid}.empty-output strong{margin-bottom:8px;font-size:18px;display:block}.empty-output p{color:var(--muted);margin:0;line-height:1.8}.module-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding-top:28px;display:grid}.module-card{border:1px solid var(--line);background:var(--surface-soft);border-radius:8px;min-height:160px;padding:18px}.module-card h3{margin:0 0 10px;font-size:18px}.module-card p{color:var(--muted);margin:0;line-height:1.75}.roadmap{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:14px;display:grid}.roadmap div{border:1px solid var(--line);background:#fff;border-radius:8px;padding:16px}.roadmap span{color:#fff;background:#111114;border-radius:8px;place-items:center;width:28px;height:28px;margin-bottom:12px;font-size:13px;display:grid}.roadmap strong{margin-bottom:6px;display:block}.roadmap p{color:var(--muted);margin:0;line-height:1.6}@media (width<=1320px){.workspace{grid-template-columns:300px minmax(0,1fr)}.outline-rail{display:none}}@media (width<=1120px){.workspace{grid-template-columns:270px minmax(0,1fr)}.lab-grid,.module-grid,.roadmap{grid-template-columns:1fr}}@media (width<=720px){.site-shell{padding:0}.topbar{flex-direction:column;align-items:stretch;position:static}.brand-lockup{min-width:0}.top-actions{justify-content:flex-start}.workspace{grid-template-columns:1fr}.course-rail{border-right:0;border-bottom:1px solid var(--line);max-height:52vh;position:static}.article-panel,.lab-panel,.system-panel{padding:22px}.article-header h2{font-size:30px}.lab-label-row{flex-direction:column;align-items:stretch}.lab-actions{justify-content:flex-start}.output-row{grid-template-columns:1fr}}@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-outline-style{syntax:"*";inherits:false;initial-value:solid}@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}