@font-face{font-family:DM Sans Variable;font-style:normal;font-display:swap;font-weight:100 1000;src:url(/assets/dm-sans-latin-ext-wght-normal-BOFOeGcA.woff2) format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:DM Sans Variable;font-style:normal;font-display:swap;font-weight:100 1000;src:url(/assets/dm-sans-latin-wght-normal-Xz1IZZA0.woff2) format("woff2-variations");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@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-border-style:solid;--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;--tw-ease:initial}}}@layer theme{:root,:host{--font-sans:"DM Sans Variable", "DM Sans", sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--color-red-700:oklch(50.5% .213 27.518);--color-orange-50:oklch(98% .016 73.684);--color-orange-700:oklch(55.3% .195 38.402);--color-amber-50:oklch(98.7% .022 95.277);--color-lime-400:oklch(84.1% .238 128.85);--color-green-700:oklch(52.7% .154 150.069);--color-teal-600:oklch(60% .118 184.704);--color-cyan-500:oklch(71.5% .143 215.221);--color-blue-200:oklch(88.2% .059 254.128);--color-blue-900:oklch(37.9% .146 265.522);--color-gray-50:oklch(98.5% .002 247.839);--color-gray-100:oklch(96.7% .003 264.542);--color-gray-200:oklch(92.8% .006 264.531);--color-gray-300:oklch(87.2% .01 258.338);--color-gray-400:oklch(70.7% .022 261.325);--color-gray-500:oklch(55.1% .027 264.364);--color-gray-600:oklch(44.6% .03 256.802);--color-gray-700:oklch(37.3% .034 259.733);--color-gray-800:oklch(27.8% .033 256.848);--color-gray-900:oklch(21% .034 264.665);--color-white:#fff;--spacing:.25rem;--ease-in:cubic-bezier(.4, 0, 1, 1);--ease-out:cubic-bezier(0, 0, .2, 1);--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--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{.\@container{container-type:inline-size}.invisible{visibility:hidden}.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}.fixed{position:fixed}.relative{position:relative}.static{position:static}.sticky{position:sticky}.top-1{top:var(--spacing)}.top-2{top:calc(var(--spacing) * 2)}.top-3{top:calc(var(--spacing) * 3)}.isolate{isolation:isolate}.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}.flex{display:flex}.grid{display:grid}.hidden{display:none}.list-item{display:list-item}.table{display:table}.w-full{width:100%}.flex-shrink,.shrink{flex-shrink:1}.grow{flex-grow:1}.border-collapse{border-collapse:collapse}.rotate-90{rotate:90deg}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:calc(var(--spacing) * 2)}.gap-3{gap:calc(var(--spacing) * 3)}.gap-4{gap:calc(var(--spacing) * 4)}.rounded{border-radius:.25rem}.border{border-style:var(--tw-border-style);border-width:1px}.italic{font-style:italic}.underline{text-decoration-line:underline}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.invert{--tw-invert:invert(100%);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,)}.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,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.ease-in{--tw-ease:var(--ease-in);transition-timing-function:var(--ease-in)}.ease-out{--tw-ease:var(--ease-out);transition-timing-function:var(--ease-out)}.\[xml\:lang\]{xml:lang}}:root{color:#28372f;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;--forest:#315d46;--muted:#7a8076;--line:#e8eae3;--cream:#f7f8f3;--green-bg:#eaf0e1;background:#fcfcf9;font-family:DM Sans Variable,DM Sans,sans-serif;font-weight:400}*{box-sizing:border-box}body{margin:0}button,a,input,textarea{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;color:inherit}button:disabled{cursor:not-allowed;opacity:.5}button,a{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline-offset:4px;outline:3px solid #88a973}button{transition:background .18s,transform .18s,color .18s,box-shadow .18s}button:active:not(:disabled){transform:scale(.98)}a{color:inherit;text-decoration:none}svg{flex-shrink:0}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:600}input,textarea{font:inherit}::selection{background:#d7e6c7}button:disabled:hover{transform:none}input[type=range]{width:100%;accent-color:var(--forest);cursor:pointer;height:20px}input[type=checkbox]{accent-color:var(--forest)}.app-shell{min-height:100dvh}.sidebar{border-right:1px solid var(--line);z-index:30;background:#f6f7f2;flex-direction:column;width:228px;padding:30px 17px 0;display:flex;position:fixed;inset:0 auto 0 0;overflow-y:auto}.brand{text-align:left;white-space:nowrap;letter-spacing:-1px;background:0 0;border:0;align-items:center;gap:9px;margin:0 7px 28px;font-size:23px;font-weight:750;display:flex}.brand-academy{font-weight:450}.brand-period{color:#586d43}.brand-mark{background:var(--forest);color:#e5efdb;border-radius:9px;place-items:center;width:34px;height:36px;display:grid}.sidebar-rule{background:#e3e6dc;height:1px;margin:0 9px 26px}.nav-label{color:#656860;letter-spacing:1.6px;margin:0 13px 12px;font-size:12px;font-weight:650}.nav-item{text-align:left;color:#63695f;background:0 0;border:0;border-radius:6px;align-items:center;gap:11px;width:100%;min-height:43px;margin-bottom:4px;padding:12px 13px;font-size:12px;font-weight:500;display:flex}.nav-item svg{color:#63695f}.nav-item.active{color:#355440;background:#e5eddc;font-weight:650}.nav-item.active svg{color:#4e6c44}.nav-item:hover{color:#355440;background:#ebeee4}.nav-active-dot{background:#557742;border-radius:50%;width:5px;height:5px;margin-left:auto}.new-tag{color:#566d4b;background:#e9ede3;border:1px solid #d9e1cf;border-radius:4px;margin-left:auto;padding:1px 6px;font-size:12px}.sidebar-rule.spaced{margin-top:23px;margin-bottom:26px}.sidebar-bottom{margin-top:auto;padding-top:40px}.learning-note{background:#eef1e6;border:1px solid #e1e5d9;border-radius:8px;margin:0 5px 21px;padding:15px 13px}.learning-note .flex{color:#536944;font-size:12px;font-weight:600}.learning-note p{color:#63695a;margin-top:9px;font-size:12px;line-height:1.85}.learning-note .text-button{color:#596d4c;gap:4px;margin-top:10px;font-size:12px}.profile{border:0;border-top:1px solid var(--line);text-align:left;background:0 0;align-items:center;gap:9px;width:100%;padding:19px 2px;display:flex}.profile-avatar{color:#5d6b50;background:#e1e8d8;border-radius:50%;place-items:center;width:33px;height:33px;font-size:13px;font-weight:650;display:grid;position:relative}.profile-avatar>span{background:#7c966c;border:2px solid #f6f7f2;border-radius:50%;width:8px;height:8px;position:absolute;bottom:0;right:0}.profile>span:nth-child(2){flex-direction:column;gap:3px;display:flex}.profile strong{font-size:12px;font-weight:600}.profile small{color:#64685f;font-size:12px}.profile>svg{color:#64695b;margin-left:auto}.main-shell{flex-direction:column;min-height:100dvh;margin-left:228px;display:flex}.topbar{border-bottom:1px solid var(--line);background:#fcfcf9;justify-content:space-between;align-items:center;gap:20px;height:77px;padding:0 37px;display:flex}.topbar-home{color:#65685f;display:flex}.breadcrumb-divider{color:#656862;margin:0 1px;font-size:12px}.breadcrumb{color:#62695d;font-size:12px}.topbar-right{align-items:center;gap:21px;display:flex}.search-trigger{color:#656860;background:0 0;border:0;align-items:center;gap:9px;font-size:12px;display:flex}.search-trigger kbd{color:#656860;background:#f4f5ef;border:1px solid #e8eae2;border-radius:4px;margin-left:24px;padding:2px 5px;font-family:inherit;font-size:12px}.header-separator{background:var(--line);width:1px;height:20px}.progress-trigger{color:#62695a;background:0 0;border:0;align-items:center;gap:8px;font-size:12px;display:flex}.progress-trigger strong{color:#5b6c50;background:#edf1e7;border-radius:4px;margin-left:2px;padding:3px 6px;font-size:12px;font-weight:500}.mini-progress{border-radius:50%;width:25px;height:25px;padding:2px}.mini-progress>span{color:#5c6b52;background:#fcfcf9;border-radius:50%;place-items:center;width:21px;height:21px;display:grid}.main-content{outline:none;flex:1;width:100%;max-width:1450px;margin:0 auto;padding:34px 37px 45px}.eyebrow{letter-spacing:1.4px;color:#626a59;align-items:center;gap:6px;font-size:12px;font-weight:650;line-height:1.5;display:inline-flex}.greeting{letter-spacing:1.7px;color:#63695c;font-size:12px}.tiny-spark{color:#616a51;display:inline-flex}.overview-intro{justify-content:space-between;align-items:center;gap:20px;margin-bottom:27px;display:flex}.overview-intro h1{letter-spacing:-1px;margin:8px 0;font-size:29px;font-weight:550;line-height:1.2}.overview-intro p{color:#646860;font-size:12px}.intro-chip{color:#636959;white-space:nowrap;align-items:center;gap:6px;margin-top:22px;font-size:12px;display:flex}.hero-panel{background:#edf2e4;border:1px solid #e2e9d7;border-radius:12px;grid-template-columns:1.05fr 1fr;min-height:304px;display:grid;position:relative;overflow:hidden}.hero-copy{z-index:1;padding:32px 0 29px 33px}.hero-eyebrow{color:#5c6c4e;letter-spacing:1.15px;align-items:center;gap:6px;font-size:12px;font-weight:650;display:flex}.hero-eyebrow>span{background:#718951;border-radius:50%;width:5px;height:5px}.hero-copy h2{letter-spacing:-1.35px;color:#304838;margin:16px 0 13px;font-size:36px;font-weight:550;line-height:1.2}.hero-copy>p{color:#606a57;font-size:12px;line-height:1.8}.hero-actions{align-items:center;gap:18px;margin-top:22px;display:flex}.button{white-space:nowrap;border:1px solid #0000;border-radius:6px;justify-content:center;align-items:center;gap:13px;min-height:41px;padding:12px 17px;font-size:12px;font-weight:550;display:inline-flex}.primary{color:#fff;background:#315d46;border-color:#315d46;box-shadow:0 2px 3px #254c3320}.primary:hover{background:#234b36;box-shadow:0 3px 7px #254c3325}.secondary{color:#466044;background:#fff;border-color:#e0e5d7}.secondary:hover{background:#f0f4e9}.outline{color:#527047;background:#f8faf3;border-color:#d7e0ca}.outline:hover{background:#eaf1df}.hero-actions>span{color:#64695b;align-items:center;gap:5px;font-size:12px;display:flex}.hero-small{color:#626a58;align-items:center;gap:4px;margin-top:12px;font-size:12px;display:flex}.hero-art{background:radial-gradient(at 52% 70%,#cfddbf60,#0000 64%);place-items:center;padding:14px 6px 0 0;display:grid;position:relative}.hero-visual{width:100%;max-width:490px}.floating-sheet{transform-origin:50%;animation:7s ease-in-out infinite sheet-float}.sheet-middle{animation-delay:-1s}.sheet-top{animation-delay:-2s}@keyframes sheet-float{0%,to{transform:translateY(0)}50%{transform:translateY(-4px)}}.overview-stats{border-bottom:1px solid var(--line);grid-template-columns:repeat(4,1fr);gap:12px;margin:25px 0 32px;padding:0 0 25px;display:grid}.overview-stat{border-right:1px solid var(--line);align-items:center;gap:12px;padding-right:12px;display:flex}.overview-stat:last-child{border:0}.stat-icon{color:#5c6c4c;background:#f2f4ec;border-radius:8px;place-items:center;width:39px;height:39px;display:grid}.overview-stat>div>div{align-items:baseline;gap:8px;display:flex}.overview-stat strong{letter-spacing:-.7px;color:#394938;font-size:22px;font-weight:550}.overview-stat div span{color:#62695b;white-space:nowrap;font-size:12px}.overview-stat p{color:#656860;white-space:nowrap;margin-top:4px;font-size:12px}.overview-columns{grid-template-columns:minmax(0,1.95fr) minmax(260px,1fr);gap:28px;display:grid}.section-heading{justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px;display:flex}.section-heading h2{letter-spacing:-.45px;align-items:center;gap:10px;font-size:17px;font-weight:600;display:flex}.section-heading p{color:#65685f;margin-top:6px;font-size:12px}.count-label{letter-spacing:0;color:#64695b;white-space:nowrap;background:#f6f7f0;border:1px solid #e6e9de;border-radius:4px;padding:3px 6px;font-size:12px;font-weight:450}.text-button{color:#596d4a;background:0 0;border:0;align-items:center;gap:6px;padding:0;font-size:12px;font-weight:500;display:inline-flex}.text-button:hover{color:#284f37}.text-button svg{transition:transform .2s}.text-button:hover svg{transform:translate(2px)}.module-list{border:1px solid var(--line);background:#fff;border-radius:9px;overflow:hidden}.module-row-wrap{border-bottom:1px solid var(--line);animation:.5s both enter}.module-row-wrap:last-child{border-bottom:0}.module-row{text-align:left;background:#fff;border:0;align-items:center;gap:12px;width:100%;min-height:104px;padding:19px 17px;display:flex}.module-row:hover{background:#fafbf6}.module-number{color:#64695d;font-variant-numeric:tabular-nums;align-self:center;font-size:12px}.module-icon{color:#5c6c4b;background:#eef3e6;border-radius:8px;flex-shrink:0;place-items:center;width:42px;height:44px;display:grid}.module-tone-1{color:#606a51;background:#f0f2ea}.module-tone-2{color:#736547;background:#f5f0e7}.module-tone-3{color:#5b6b5e;background:#edf1ee}.module-tone-4{color:#6a6753;background:#f1f0e8}.module-tone-5{color:#616b4c;background:#edf1e6}.module-description{flex:1;min-width:0}.module-description>div:first-child{align-items:center;gap:7px;display:flex}.module-description h3{letter-spacing:-.1px;font-size:12px;font-weight:600}.module-description p{color:#63695e;margin-top:5px;font-size:12px;line-height:1.5}.module-meta{color:#64685d;align-items:center;gap:7px;margin-top:8px;font-size:12px;display:flex}.module-meta>i{background:#aab09e;border-radius:50%;width:2px;height:2px}.level-tag{letter-spacing:.5px;color:#5f6b52;background:#f4f7ef;border:1px solid #e2e8d9;border-radius:3px;margin-left:4px;padding:2px 4px;font-size:12px}.level-intermediate{color:#70664e;background:#f9f6ed;border-color:#eee8d8}.level-advanced{color:#63695a;background:#f3f4ef;border-color:#e6e9df}.module-end{color:#64685d;align-items:center;gap:9px;display:flex}.module-end svg{transition:transform .2s}.start-here{color:#576d45;white-space:nowrap;background:#edf3e6;border-radius:4px;padding:4px 7px;font-size:12px}.module-progress-count{color:#5a6c4b;font-size:12px}.module-lessons{background:#f8faf3;border-top:1px dashed #e1e8d5;padding:5px 20px 10px 60px}.module-lessons button{text-align:left;color:#5c6c4d;background:0 0;border:0;align-items:center;gap:9px;width:100%;padding:11px 3px;font-size:12px;display:flex}.module-lessons button>span:nth-child(2){flex:1}.module-lessons small{color:#636959;font-size:12px}.module-lessons button:hover{color:#284f37}.green-text,.green-dot{color:#536e42}.lab-preview{background:#f7f9f1;border:1px solid #e4e8da;border-radius:9px;padding:20px 19px 16px}.lab-preview .eyebrow{letter-spacing:1.15px;font-size:12px}.tiny-tag{color:#606b4f;letter-spacing:.7px;border:1px solid #e1e7d5;border-radius:3px;padding:3px 5px;font-size:12px}.lab-preview h3{letter-spacing:-.5px;margin:18px 0 8px;font-size:17px;font-weight:550}.lab-preview>p{color:#636959;font-size:12px;line-height:1.8}.curve-chart{width:100%;margin:13px 0 0}.chart-legend{color:#636958;justify-content:center;gap:15px;margin:0 0 17px;font-size:12px;display:flex}.chart-legend span{align-items:center;gap:5px;display:flex}.chart-legend i{background:#5e8655;width:12px;height:2px;display:inline-block}.chart-legend i.pale{background:#c0ccac}.lab-preview .button{justify-content:space-between;min-height:36px;padding:9px 12px;font-size:12px}.preview-footnote{color:#646959;text-align:center;margin-top:9px;font-size:12px;display:block}.recall-preview{background:#f9f8f2;border:1px solid #eae9df;border-radius:9px;margin-top:17px;padding:20px;position:relative}.recall-icon{color:#656956;position:absolute;top:21px;right:18px}.recall-preview .eyebrow{color:#686854;letter-spacing:1.3px;font-size:12px}.recall-preview h3{letter-spacing:-.4px;margin:11px 0 8px;font-size:17px;font-weight:550;line-height:1.4}.recall-preview p{color:#666858;max-width:210px;font-size:12px;line-height:1.8}.recall-preview .text-button{margin-top:12px;font-size:12px}.quote-note{text-align:center;color:#636959;padding:22px 10px 0}.quote-note>span{color:#636956;font-family:Georgia,serif;font-size:31px;line-height:1}.quote-note p{margin-top:-4px;font-size:12px;font-style:italic;line-height:1.7}.quote-note small{letter-spacing:1px;color:#65685b;margin-top:10px;font-size:12px;display:block}.benchmark-strip{border:1px solid var(--line);background:#f8f9f4;border-radius:9px;align-items:center;gap:24px;margin-top:29px;padding:22px;display:flex}.benchmark-strip .eyebrow{font-size:12px}.benchmark-strip h2{letter-spacing:-.4px;margin-top:6px;font-size:16px}.benchmark-strip p{color:#636959;margin-top:6px;font-size:12px}.benchmark-names{flex-wrap:wrap;gap:8px;margin-left:auto;display:flex}.benchmark-names span{color:#606a55;background:#fff;border:1px solid #e2e7d8;border-radius:5px;padding:8px 10px;font-size:12px;font-weight:550}.benchmark-names span:last-child{color:#616a57;background:0 0;border-color:#0000;font-size:12px}.icon-button{color:#606a55;background:0 0;border:0;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:34px;display:inline-flex}.icon-button:hover{background:#eaf0e2}.footer{border-top:1px solid var(--line);color:#64695c;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:15px;padding:20px 37px;font-size:12px;display:flex}.footer>span{align-items:center;gap:6px;display:flex}.footer-dot{background:#96a980;border-radius:50%;width:4px;height:4px}.footer-credit{white-space:nowrap;text-underline-offset:3px}.footer-credit:hover,.footer-credit:focus-visible{text-decoration:underline}.footer button{color:#616a56;background:0 0;border:0;align-items:center;gap:5px;font-size:12px;display:flex}.mobile-toggle{display:none}.page-enter{animation:.45s cubic-bezier(.16,1,.3,1) enter}@keyframes enter{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.page-intro{margin:7px 0 32px}.page-intro h1{letter-spacing:-1.2px;margin:12px 0;font-size:34px;line-height:1.2}.page-intro p{color:#62695a;max-width:690px;font-size:13px;line-height:1.7}.page-intro.with-action{justify-content:space-between;align-items:center;gap:25px;display:flex}.page-intro .eyebrow{font-size:12px}.path-summary{background:#edf3e6;border:1px solid #e0e8d5;border-radius:10px;align-items:center;gap:40px;margin-bottom:23px;padding:22px 25px;display:flex}.path-summary>div:first-child{color:#566d4a;flex:1;align-items:center;gap:17px;display:flex}.path-summary h3{color:#3c5538;font-size:15px}.path-summary p{color:#5e6b53;margin-top:5px;font-size:12px}.progress-track{background:#e5ebdb;border-radius:4px;height:5px;overflow:hidden}.progress-track>span{background:#7e9b66;border-radius:4px;height:100%;transition:width .4s;display:block}.path-summary>.progress-track{width:170px}.filter-chips{flex-wrap:wrap;gap:7px;margin:0 0 24px;display:flex}.filter-chips button{color:#626958;background:0 0;border:1px solid #e4e8dc;border-radius:5px;padding:8px 12px;font-size:12px}.filter-chips button:hover{background:#f1f5e9}.filter-chips button.selected{color:#526d40;background:#e9f0de;border-color:#d8e3ca;font-weight:600}.full-module-list{border:1px solid var(--line);background:#fff;border-radius:10px;overflow:hidden}.full-module-list .module-row{gap:18px;min-height:118px;padding:23px}.full-module-list .module-description h3{font-size:15px}.full-module-list .module-description p,.full-module-list .module-meta,.full-module-list .level-tag,.full-module-list .start-here{font-size:12px}.full-module-list .module-icon{width:49px;height:49px}.full-module-list .module-lessons{padding-left:86px;padding-right:35px}.full-module-list .module-lessons button{padding:13px 0;font-size:12px}.path-bottom{color:#5e6b51;align-items:center;gap:15px;max-width:680px;margin:15px auto 0;padding:23px;display:flex}.path-bottom p{font-size:12px;line-height:1.8}.path-bottom strong{color:#586d47}.tabs{border-bottom:1px solid var(--line);gap:26px;margin-bottom:25px;display:flex;overflow:auto}.tabs button{white-space:nowrap;color:#626957;background:0 0;border:0;border-bottom:2px solid #0000;gap:9px;padding:11px 0 15px;font-size:12px;display:flex}.tabs button>span{color:#63695a;font-size:12px}.tabs button[aria-selected=true]{color:#496640;border-bottom-color:#5c7c4a;font-weight:600}.lab-shell{background:#fff;border:1px solid #e0e6d6;border-radius:12px;overflow:hidden}.lab-heading{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:15px;padding:24px 28px;display:flex}.lab-heading h2{letter-spacing:-.6px;margin-top:7px;font-size:22px}.tag{white-space:nowrap;border-radius:4px;align-items:center;gap:5px;padding:5px 8px;font-size:12px;display:inline-flex}.tag.muted{color:#5e6b50;background:#f0f4e9;border:1px solid #e5ebdc}.status-dot{background:#8ba26b;border-radius:50%;width:5px;height:5px}.lab-grid{grid-template-columns:minmax(230px,1fr) minmax(0,1.9fr);display:grid}.lab-controls{border-right:1px solid var(--line);background:#fdfefa;padding:24px}.callout{color:#586d44;background:#eff4e6;border-radius:7px;gap:10px;padding:14px;display:flex}.callout p{font-size:12px;line-height:1.8}.callout.small{margin-bottom:26px}.slider-label{color:#5c6c4e;justify-content:space-between;gap:15px;margin:20px 0 10px;font-size:12px;display:flex}.slider-label strong{color:#3f633e;font-weight:650}.range-ends{color:#616a56;justify-content:space-between;margin-top:5px;font-size:12px;display:flex}.help-text{color:#606a56;margin:17px 0;font-size:12px;line-height:1.8}.lab-controls .button{margin-top:10px}.lab-results{min-width:0;padding:25px}.result-numbers{justify-content:space-between;gap:20px;display:flex}.result-numbers>div>span{color:#606a55;font-size:12px;display:block}.result-numbers strong{letter-spacing:-1px;color:#4b6b42;font-variant-numeric:tabular-nums;margin-top:6px;font-size:29px;font-weight:550;display:block}.result-numbers strong.interval-number{font-size:24px}.interval-number>span{color:#63695c}.interval-chart{width:100%;margin-top:23px}.chart-caption{color:#616a57;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;font-size:12px;display:flex}.chart-caption>span{align-items:center;gap:6px;display:flex}.legend-square{background:#86a76b;border-radius:2px;width:7px;height:7px;display:inline-block}.legend-square.gray{background:#c6cbbf}.sample-history{border-top:1px solid var(--line);min-height:86px;margin-top:24px;padding-top:17px}.sample-history p{color:#626959;margin-top:7px;font-size:12px;line-height:1.7}.sample-chips{flex-wrap:wrap;gap:7px;margin-top:13px;display:flex}.sample-chips span{color:#506f40;background:#edf4e3;border:1px solid #dde8d2;border-radius:4px;padding:5px 8px;font-size:12px}.lab-bottom{background:#f6f8ef;border-top:1px solid #e4e9dc;justify-content:space-between;align-items:center;gap:25px;padding:17px 25px;display:flex}.lab-bottom p{color:#5f6b50;align-items:center;gap:10px;font-size:12px;line-height:1.6;display:flex}.lab-bottom .text-button{white-space:nowrap}.lab-explainer{grid-template-columns:2fr 1fr;gap:35px;margin-top:37px;display:grid}.lab-explainer h2{letter-spacing:-.5px;margin:9px 0 12px;font-size:21px}.lab-explainer p{color:#616a57;font-size:12px;line-height:1.9}.source-card{background:#f5f8ee;border:1px solid #e3e9d9;border-radius:8px;align-self:start;padding:23px}.source-card h3{letter-spacing:-.3px;margin:13px 0 18px;font-size:16px;line-height:1.5}.source-card>span:last-child{color:#5e6b4e;align-items:center;gap:10px;font-size:12px;display:flex}.lab-tip{color:#5c6c49;border-top:1px solid #e4eadb;gap:9px;margin-top:28px;padding-top:20px;display:flex}.lab-tip p{font-size:12px;line-height:1.8}.matrix-label{letter-spacing:1.4px;text-align:center;color:#606a53;margin:0 0 13px 65px;font-size:12px}.confusion-matrix{grid-template-columns:68px 1fr 1fr;align-items:stretch;gap:8px;display:grid}.confusion-matrix>span{color:#606a56;text-align:center;align-self:center;font-size:12px}.confusion-matrix>div{border-radius:7px;flex-direction:column;align-items:center;gap:5px;padding:21px 10px;display:flex}.true-cell{color:#506f43;background:#e8f0de;border:1px solid #dce7cf}.false-cell{color:#76653d;background:#f7f0e4;border:1px solid #eee3cb}.confusion-matrix strong{font-size:29px;font-weight:550}.confusion-matrix div span{font-size:12px}.metric-row{border-top:1px solid var(--line);grid-template-columns:repeat(4,1fr);gap:10px;margin:25px 0 0;padding-top:20px;display:grid}.metric-row>div{flex-direction:column;gap:6px;display:flex}.metric-row span{text-transform:capitalize;color:#616a54;font-size:12px}.metric-row strong{color:#536f43;font-size:20px;font-weight:550}.frontier-chart{width:100%;margin-bottom:13px}.recommendation{background:#f0f6e6;border:1px solid #dfe8d3;border-radius:7px;margin-top:23px;padding:17px}.recommendation h3{letter-spacing:-.5px;color:#4f6d3f;margin-top:10px;font-size:17px}.recommendation p{color:#5f6b51;margin-top:7px;font-size:12px;line-height:1.7}.lesson-layout{grid-template-columns:minmax(0,2.6fr) minmax(220px,1fr);gap:38px;display:grid}.back-link{margin:0 0 30px}.lesson-content h1{letter-spacing:-1.2px;margin:15px 0;font-size:36px;line-height:1.2}.lesson-lead{color:#5f6b52;font-size:16px;line-height:1.7}.lesson-meta{border-bottom:1px solid var(--line);color:#606b52;flex-wrap:wrap;gap:18px;margin-top:20px;padding-bottom:23px;font-size:12px;display:flex}.lesson-meta>span{align-items:center;gap:5px;display:flex}.completed-label{color:#516f3e}.eval-flow{background:#f0f5e8;border:1px solid #e2ead7;border-radius:8px;grid-template-columns:repeat(4,1fr);gap:5px;margin:25px 0 30px;padding:20px 15px;display:grid}.eval-flow>div{color:#596d48;align-items:center;gap:8px;font-size:12px;display:flex}.eval-flow>div>span{color:#616a54;font-size:12px}.eval-flow>div>svg{color:#616a59;margin-left:auto;margin-right:8px}.lesson-section{gap:14px;margin:29px 0;display:flex}.section-number{color:#616a55;font-size:12px;line-height:27px}.lesson-section h2{letter-spacing:-.5px;margin-bottom:10px;font-size:20px;line-height:1.4}.lesson-section p{color:#5f6a55;font-size:15px;line-height:1.95}.worked-example{background:#f7f7ef;border:1px solid #e9eadb;border-left:3px solid #b4bc8b;border-radius:6px;margin:30px 0;padding:20px 22px}.worked-example p{color:#606a53;margin-top:11px;font-size:12px;line-height:1.9}.takeaway{color:#556e41;background:#edf4e3;border-radius:8px;gap:14px;margin:25px 0 33px;padding:20px;display:flex}.takeaway p{color:#546e43;margin-top:7px;font-size:14px;line-height:1.7}.quiz{background:#fff;border:1px solid #e0e7d5;border-radius:10px;padding:25px}.quiz h2{letter-spacing:-.4px;margin:11px 0;font-size:18px;line-height:1.55}.quiz .help-text{margin:8px 0 20px}.quiz-options{flex-direction:column;gap:9px;margin-bottom:21px;display:flex}.quiz-options button{text-align:left;color:#5f6a55;background:#fcfdf9;border:1px solid #e5eadc;border-radius:6px;align-items:center;gap:12px;padding:13px;font-size:12px;line-height:1.7;display:flex}.quiz-options button>svg{margin-left:auto}.quiz-options button:hover:not(:disabled){background:#f4f8ed;border-color:#acc292}.answer-letter{border:1px solid #dfe6d4;border-radius:4px;flex-shrink:0;place-items:center;width:24px;height:24px;font-size:12px;display:grid}.quiz-options button.selected{color:#526f3f;background:#f0f7e5;border-color:#98b77c}.quiz-options button.correct{color:#516f40;opacity:1;background:#eaf4df;border-color:#98b77c}.quiz-options button.incorrect{color:#826037;opacity:1;background:#faf1e6;border-color:#e0bf93}.quiz-options button:disabled{opacity:.75}.quiz-feedback{border-radius:6px;gap:12px;margin:15px 0;padding:17px;font-size:12px;line-height:1.8;display:flex}.quiz-feedback strong{font-weight:600}.quiz-feedback p{margin-top:5px;font-size:12px}.quiz-feedback.success{color:#566e44;background:#edf5e5}.quiz-feedback.retry{color:#756546;background:#f9f3e7}.lesson-actions{justify-content:space-between;align-items:center;gap:20px;margin:22px 0 28px;display:flex}.lesson-actions p{color:#606a55;font-size:12px;line-height:1.7}.lesson-source{border-top:1px solid var(--line);color:#5c6c4c;justify-content:space-between;gap:20px;padding:21px 0;display:flex}.lesson-source p{margin:5px 0;font-size:12px;line-height:1.7}.lesson-source small{color:#616a57;font-size:12px}.lesson-aside{padding-top:61px}.lesson-lab-link{background:#f1f6e8;border:1px solid #e0e7d4;border-radius:9px;margin-bottom:20px;padding:20px}.lesson-lab-link h3{letter-spacing:-.4px;margin-top:10px;font-size:17px}.lesson-lab-link p{color:#616d54;margin:12px 0 17px;font-size:12px;line-height:1.8}.lesson-lab-link .button{font-size:12px}.aside-module{background:#f9fbf5;border:1px solid #e4eada;border-radius:9px;padding:20px}.aside-module h3{margin:10px 0 17px;font-size:15px;line-height:1.5}.aside-module>button{text-align:left;color:#606a53;background:0 0;border:0;border-radius:5px;align-items:center;gap:9px;width:100%;padding:11px 6px;font-size:12px;line-height:1.7;display:flex}.aside-module>button>span{border:1px solid #e2ead6;border-radius:50%;flex-shrink:0;place-items:center;width:22px;height:22px;font-size:12px;display:grid}.aside-module>button.current{color:#576e41;background:#edf4e2}.note-card{color:#626a4d;background:#f7f6ee;border:1px solid #e7e6d8;border-radius:9px;margin-top:20px;padding:20px}.note-card h3{color:#5d6c42;letter-spacing:-.3px;margin:12px 0;font-size:16px}.note-card p{margin-bottom:15px;font-size:12px;line-height:1.8}.note-card textarea{resize:vertical;color:#5b6d45;background:#fffef9;border:1px solid #e4e6d6;border-radius:5px;width:100%;padding:12px;font-size:12px;line-height:1.8}.note-card textarea::placeholder{color:#626a56}.note-card .button{margin-top:10px;font-size:12px}.aside-tip{color:#616a55;margin:17px 12px;font-size:12px;line-height:1.9}.is-saved{color:#546e42;background:#ecf3e3}.explorer-tools{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:15px;display:flex}.inline-search{color:#616a57;border:1px solid #e4e9db;border-radius:5px;align-items:center;gap:8px;min-width:180px;padding:7px 10px;display:flex}.inline-search input{color:#5b6c4c;background:0 0;border:0;outline:none;width:150px;font-size:12px}.inline-search input::placeholder{color:#616a57}.data-notice{color:#606a56;align-items:center;gap:8px;margin:0 0 23px;font-size:12px;line-height:1.8;display:flex}.benchmark-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;display:grid}.benchmark-card{background:#fff;border:1px solid #e2e8d9;border-radius:10px;transition:border-color .2s,box-shadow .2s;overflow:hidden}.benchmark-card:hover{border-color:#bccdab;box-shadow:0 6px 20px #304d2810}.benchmark-art{background:#f0f5e9;border-bottom:1px solid #e6eddf;justify-content:center;align-items:center;height:122px;display:flex;position:relative}.benchmark-art>.tag{font-size:12px;position:absolute;top:14px;left:17px}.benchmark-art>svg{width:210px;height:100px}.benchmark-year{color:#616a57;font-size:12px;position:absolute;top:18px;right:16px}.benchmark-card-body{padding:23px}.benchmark-card h2{letter-spacing:-.6px;font-size:22px}.benchmark-card-body>p{color:#606a55;min-height:44px;margin-top:11px;font-size:12px;line-height:1.8}.compare-toggle{color:#5f6b50;cursor:pointer;align-items:center;gap:5px;font-size:12px;display:flex}.compare-toggle input{width:12px;height:12px}.benchmark-stat{align-items:baseline;gap:9px;padding:21px 0 17px;display:flex}.benchmark-stat strong{letter-spacing:-.6px;color:#546e42;font-size:27px;font-weight:550}.benchmark-stat span{color:#5e6b51;font-size:12px}.benchmark-metric{border-top:1px solid #e9eedf;border-bottom:1px solid #e9eedf;justify-content:space-between;gap:20px;padding:13px 0;display:flex}.benchmark-metric>span{letter-spacing:1px;color:#606a54;font-size:12px}.benchmark-metric strong{color:#5a6d49;font-size:12px;font-weight:500}.benchmark-card-body>p.benchmark-limitation{min-height:56px;margin:14px 0 19px;font-size:12px;line-height:1.8}.benchmark-limitation strong{color:#5d6c4a;margin-bottom:4px;font-size:12px;font-weight:600;display:block}.comparison-section{margin-top:33px}.table-scroll{border:1px solid #e0e8d5;border-radius:8px;overflow:auto}table{border-collapse:collapse;text-align:left;width:100%;font-size:12px}th,td{border-bottom:1px solid #e6eddc;padding:16px 20px}thead{color:#5b6c4a;background:#eff5e5}thead th{font-size:12px;font-weight:500}tbody th{color:#526f41;font-weight:600}tbody td{color:#5f6b51}tr:last-child td,tr:last-child th{border-bottom:0}.learning-science{background:#eff4e7;border:1px solid #e3ead7;border-radius:12px;grid-template-columns:1fr 1fr;gap:50px;padding:33px;display:grid}.learning-science h2{letter-spacing:-1px;margin:16px 0;font-size:31px;line-height:1.2}.learning-science>div>p{color:#5e6b4e;font-size:12px;line-height:1.9}.learning-science .text-button{margin-top:20px}.learning-principles{flex-direction:column;justify-content:center;gap:22px;display:flex}.learning-principles>div{align-items:center;gap:14px;display:flex}.learning-principles>div>span{color:#586d45;background:#e5edda;border-radius:8px;place-items:center;width:40px;height:43px;display:grid}.learning-principles h3{color:#546e3f;margin-bottom:5px;font-size:14px}.learning-principles p{color:#606a52;font-size:12px;line-height:1.7}.science-footnote{color:#62695a;max-width:800px;margin:17px 5px 34px;font-size:12px;line-height:1.8}.source-list{border-top:1px solid #e3ead8}.source-list>a{border-bottom:1px solid #e3ead8;align-items:center;gap:23px;padding:24px 10px;display:flex}.source-list>a:hover{background:#f6f9ef}.source-index{color:#626958;align-self:flex-start;margin-top:3px;font-size:12px}.source-list h3{color:#526843;font-size:14px;line-height:1.6}.source-list p{color:#5e6b50;margin-top:5px;font-size:12px;line-height:1.8}.source-list small{color:#626958;align-items:center;gap:8px;margin-top:9px;font-size:12px;display:flex}.source-list>a>svg{color:#5e6b51;margin-left:auto}.glossary-search{color:#5e6b4f;background:#f5f9ed;border:1px solid #dfe8d3;border-radius:8px;align-items:center;gap:14px;padding:18px 20px;display:flex}.glossary-search input{color:#586d44;background:0 0;border:0;outline:none;width:100%;font-size:13px}.glossary-search input::placeholder{color:#606a54}.glossary-search>span{white-space:nowrap;color:#616a57;font-size:12px}.glossary-list{margin-top:22px}.glossary-list article{border-bottom:1px solid #e5ecda;gap:27px;padding:23px 9px;display:flex}.glossary-list article>span{color:#5d6c4b;background:#f0f5e7;border-radius:6px;flex-shrink:0;place-items:center;width:33px;height:33px;font-size:13px;display:grid}.glossary-list h2{color:#516a42;letter-spacing:-.3px;font-size:16px}.glossary-list p{color:#5e6b51;max-width:800px;margin-top:7px;font-size:12px;line-height:1.9}.notebook-grid{grid-template-columns:1.8fr 1fr;gap:25px;display:grid}.notebook-editor{background:#fff;border:1px solid #e1e8d5;border-radius:10px;padding:24px}.notebook-editor label{color:#606a52;margin-bottom:9px;font-size:12px;display:block}.notebook-editor textarea{resize:vertical;color:#596d45;background:#fcfdf9;border:1px solid #e3ead8;border-radius:6px;width:100%;padding:18px;font-size:12px;line-height:1.95}.notebook-editor textarea::placeholder{color:#636959}.editor-bottom{justify-content:space-between;align-items:center;margin-top:15px;display:flex}.editor-bottom>span{color:#626959;font-size:12px}.bookmark-panel{background:#f6f9ef;border:1px solid #e2e9d7;border-radius:10px;align-self:start;padding:25px}.bookmark-panel h2{letter-spacing:-.5px;margin-top:12px;font-size:20px}.bookmark-empty{text-align:center;color:#5f6b51;flex-direction:column;align-items:center;padding:38px 0 17px;display:flex}.bookmark-empty p{color:#5b6c49;margin-top:15px;font-size:13px}.bookmark-empty>span{color:#616a56;margin:9px 0 23px;font-size:12px;line-height:1.8}.bookmark-item{border-top:1px solid #e2ead6;align-items:center;gap:10px;margin-top:20px;padding:13px 0 0;display:flex}.bookmark-item>button:first-child{text-align:left;color:#5c6c4b;background:0 0;border:0;flex:1;align-items:center;gap:10px;font-size:12px;line-height:1.7;display:flex}.bookmark-item>button:first-child>svg{margin-left:auto}.lesson-notes{margin-top:30px}.lesson-notes h2{font-size:19px}.lesson-notes article{background:#fff;border:1px solid #e6eddd;border-radius:8px;margin-top:17px;padding:20px}.lesson-notes article>p{white-space:pre-wrap;color:#606b52;margin-top:12px;font-size:12px;line-height:1.9}.progress-stat-grid{grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:35px;display:grid}.progress-stat-grid>div{color:#5c6c4b;background:#f2f6e9;border:1px solid #e5ebda;border-radius:9px;flex-direction:column;gap:12px;padding:25px;display:flex}.progress-stat-grid strong{letter-spacing:-.7px;color:#546e41;font-size:29px;font-weight:550}.progress-stat-grid span{color:#606a54;font-size:12px;line-height:1.6}.progress-columns{grid-template-columns:1.7fr 1fr;gap:30px;display:grid}.progress-module{text-align:left;color:#5f6b52;background:0 0;border:0;border-bottom:1px solid #e5ecda;align-items:center;gap:15px;width:100%;padding:21px 0;display:flex}.progress-module h3{color:#5a6c49;margin-bottom:12px;font-size:12px}.progress-module>div{flex:1}.progress-module>span:not(.module-icon){font-size:12px}.review-card{color:#5a6d4a;background:#edf4e2;border:1px solid #e0e9d3;border-radius:10px;flex-direction:column;align-self:start;align-items:flex-start;padding:28px;display:flex}.review-card .eyebrow{margin-top:22px}.review-card h2{letter-spacing:-.7px;margin:13px 0;font-size:25px;line-height:1.3}.review-card p{color:#5f6b50;margin-bottom:25px;font-size:12px;line-height:1.9}.practice-page{max-width:780px;margin:auto}.practice-page>.progress-track{margin-bottom:27px}.practice-actions{justify-content:space-between;align-items:center;gap:20px;margin-top:20px;display:flex}.empty-state{text-align:center;flex-direction:column;align-items:center;max-width:540px;margin:75px auto;display:flex}.empty-state>span{color:#586d45;background:#edf4e3;border-radius:22px;place-items:center;width:84px;height:84px;display:grid}.empty-state h1{letter-spacing:-.8px;margin:25px 0 14px;font-size:29px;line-height:1.4}.empty-state p{color:#5e6b51;font-size:13px;line-height:1.9}.empty-state .button{margin-top:25px}.storage-error{color:#816133;background:#fff5e5;border:1px solid #eddbbd;border-radius:6px;margin-bottom:20px;padding:13px 16px;font-size:12px;line-height:1.8}.search-dialog{color:#426238;background:#fcfdf9;border:1px solid #dce5d0;border-radius:12px;width:560px;max-width:calc(100% - 32px);margin:100px auto auto;padding:0;box-shadow:0 25px 90px #203e2833}.search-dialog::backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#24352455}.search-dialog-input{color:#5b6c4a;border-bottom:1px solid #e4ebd9;align-items:center;gap:14px;padding:20px;display:flex}.search-dialog-input input{color:#536f3e;background:0 0;border:0;outline:none;width:100%;font-size:14px}.search-dialog-input input::placeholder{color:#5e6b51}.search-results{padding:20px}.search-results>.eyebrow{margin-bottom:12px}.search-results>button{text-align:left;background:0 0;border:0;border-radius:6px;align-items:center;gap:15px;width:100%;padding:13px 10px;display:flex}.search-results>button:hover{background:#edf4e2}.search-results>button>div{flex-direction:column;gap:4px;display:flex}.search-results strong{font-size:12px;font-weight:500}.search-results small{color:#5f6b53;font-size:12px}.search-results>button>svg{color:#5f6b53;margin-left:auto}.search-hint{color:#616a55;border-top:1px solid #e6eddc;justify-content:space-between;gap:20px;padding:15px 20px;font-size:12px;display:flex}.search-hint>span{white-space:nowrap}.no-results{color:#5b6c4e;padding:30px 0;font-size:12px;line-height:1.9}.skip-link{z-index:100;color:#fff;background:#315d46;border-radius:5px;padding:12px 16px;font-size:13px;position:fixed;top:8px;left:240px;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0)}@media(min-width:1550px){.main-content{padding:42px 48px 50px}.hero-panel{min-height:340px}.hero-copy{padding:37px 0 34px 41px}.hero-copy h2{font-size:43px}.hero-copy>p{font-size:13px}.hero-actions{margin-top:27px}.hero-visual{max-width:520px}.overview-intro h1{font-size:33px}.overview-stat div span,.overview-stat p{font-size:12px}.module-row{min-height:118px}.module-description h3{font-size:13px}.module-description p,.module-meta,.level-tag{font-size:12px}.lab-preview{padding:25px}.lab-preview h3{font-size:20px}.lab-preview>p{font-size:12px}.recall-preview{padding:25px}.recall-preview h3{font-size:20px}.recall-preview p{max-width:260px;font-size:12px}}@media(max-width:1180px){.sidebar{width:208px;padding-left:12px;padding-right:12px}.brand{font-size:21px}.brand-mark{width:30px;height:33px}.main-shell{margin-left:208px}.main-content{padding:29px 27px 36px}.topbar{padding:0 27px}.hero-copy{padding-left:25px}.hero-copy h2{font-size:31px}.hero-eyebrow{font-size:12px}.hero-actions{gap:10px}.hero-actions>span{font-size:12px}.overview-intro h1{font-size:26px}.intro-chip{display:none}.overview-stats{gap:10px}.overview-stat{gap:9px;padding-right:6px}.stat-icon{width:31px;height:34px}.stat-icon svg{width:19px}.overview-stat>div>div{gap:5px}.overview-stat div span,.overview-stat p{font-size:12px}.overview-columns{grid-template-columns:minmax(0,1.8fr) minmax(235px,1fr);gap:20px}.module-row{gap:9px;padding:18px 12px}.module-description p,.module-description h3{font-size:12px}.module-icon{width:35px;height:39px}.start-here{display:none}.section-heading h2{font-size:16px}.section-heading .count-label{display:none}.section-heading .text-button{font-size:12px}.lab-preview{padding:17px 15px}.lab-preview h3{font-size:16px}.lab-preview .eyebrow,.tiny-tag{font-size:12px}.recall-preview{padding:18px 16px}.recall-preview h3{font-size:16px}.benchmark-names{gap:4px}.benchmark-names span{padding:6px;font-size:12px}.benchmark-strip{gap:15px}.benchmark-strip h2{font-size:15px}.lesson-layout{grid-template-columns:minmax(0,2.4fr) minmax(190px,1fr);gap:24px}.lesson-aside{padding-top:58px}.lesson-content h1{font-size:30px}.lesson-lead{font-size:14px}.note-card,.aside-module{padding:16px}.lab-grid{grid-template-columns:minmax(200px,1fr) minmax(0,1.7fr)}.lab-controls,.lab-results{padding:21px}.result-numbers strong{font-size:24px}.result-numbers strong.interval-number{font-size:20px}.result-numbers>div>span{font-size:12px}.lab-bottom{padding:17px 20px}.page-intro h1{font-size:30px}.progress-stat-grid>div{padding:20px}.eval-flow{padding:16px 12px}.eval-flow>div{gap:4px;font-size:12px}.eval-flow>div>svg{width:12px;margin-right:4px}}@media(max-width:980px){.sidebar{width:190px;padding-left:10px;padding-right:10px}.brand{gap:6px;font-size:19px}.brand-mark{width:28px;height:30px}.brand-mark svg{width:20px}.main-shell{margin-left:190px}.nav-item{gap:9px;padding:11px 10px;font-size:12px}.nav-item svg{width:18px}.nav-label{font-size:12px}.learning-note{padding:12px 9px}.learning-note .flex,.learning-note .text-button,.profile strong,.profile small{font-size:12px}.main-content{padding:27px 24px 35px}.hero-copy h2{font-size:28px}.hero-copy{padding:27px 0 24px 23px}.hero-copy>p{font-size:12px}.hero-panel{min-height:280px}.hero-actions>span{display:none}.hero-art{padding:0}.hero-visual{min-width:280px;transform:translate(-10px)}.overview-stats{grid-template-columns:repeat(2,1fr);row-gap:20px}.overview-stat:nth-child(2){border:0}.overview-stat div span,.overview-stat p{font-size:12px}.stat-icon{width:38px;height:38px}.overview-stat>div>div{gap:10px}.overview-columns{grid-template-columns:minmax(0,1fr)}.module-description h3,.module-description p{font-size:12px}.module-row{gap:13px;padding:19px 16px}.module-icon{width:40px;height:43px}.module-meta{font-size:12px}.start-here{display:inline-block}.overview-aside{grid-template-columns:1fr 1fr;gap:20px;display:grid}.recall-preview{align-self:start;min-height:240px;margin:0;padding:22px}.lab-preview{padding:22px}.lab-preview h3{font-size:18px}.recall-preview h3{font-size:20px}.quote-note{display:none}.benchmark-strip{flex-wrap:wrap}.benchmark-names{margin-left:0}.benchmark-strip>.icon-button{margin-left:auto}.lesson-layout{flex-direction:column;display:flex}.lesson-aside{grid-template-columns:1fr 1fr;gap:20px;padding-top:0;display:grid}.note-card{margin:0}.aside-module{align-self:start}.aside-tip{display:none}.lab-grid{grid-template-columns:minmax(0,1fr)}.lab-controls{border-right:0;border-bottom:1px solid var(--line)}.callout.small{margin-bottom:18px}.lab-controls .button{width:auto}.lab-bottom{align-items:flex-start}.lab-explainer{gap:25px}.topbar-right{gap:15px}.search-trigger kbd{margin-left:5px}.progress-trigger>span:nth-child(2){display:none}.learning-science{gap:27px;padding:25px}.learning-science h2{font-size:27px}.notebook-grid{grid-template-columns:1.5fr 1fr;gap:20px}.notebook-editor,.bookmark-panel{padding:20px}.progress-columns{grid-template-columns:1.4fr 1fr;gap:22px}.progress-stat-grid{grid-template-columns:repeat(2,1fr)}.review-card{padding:22px}.review-card h2{font-size:23px}.progress-module{gap:10px}.progress-module h3{font-size:12px}.progress-module .module-icon{width:34px}.page-intro.with-action{align-items:flex-start}.page-intro.with-action h1{font-size:27px}}@media(max-width:767px){.sidebar{width:245px;padding:26px 17px 0;transition:transform .25s;transform:translate(-100%)}.sidebar.mobile-open{transform:translate(0)}.brand{gap:10px;font-size:24px}.brand-mark{width:34px;height:36px}.nav-item{gap:12px;padding:13px;font-size:13px}.nav-item svg{width:21px}.nav-label,.learning-note .flex,.learning-note p,.learning-note .text-button{font-size:12px}.learning-note{padding:17px}.profile strong,.profile small{font-size:12px}.sidebar-backdrop{z-index:29;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#1e342645;border:0;position:fixed;inset:0}.main-shell{margin-left:0}.mobile-toggle{display:inline-flex}.topbar{gap:12px;height:66px;padding:0 19px}.topbar-right{gap:14px}.search-trigger>span,.search-trigger kbd{display:none}.search-trigger{justify-content:center;width:32px;height:32px}.search-trigger svg{width:20px;height:20px}.header-separator{display:none}.progress-trigger strong,.breadcrumb{font-size:12px}.topbar-home,.breadcrumb-divider{display:none}.main-content{padding:27px 21px 35px}.overview-intro{margin-bottom:22px}.overview-intro h1{letter-spacing:-1px;font-size:27px;line-height:1.25}.overview-intro p{font-size:12px;line-height:1.7}.greeting{letter-spacing:1.5px;font-size:12px}.hero-panel{grid-template-columns:1fr;min-height:0}.hero-copy{padding:27px 26px 5px}.hero-eyebrow{font-size:12px}.hero-copy h2{margin-top:17px;font-size:34px}.hero-copy>p{font-size:12px}.hero-actions{gap:17px;margin-top:22px}.hero-actions>span{font-size:12px;display:flex}.hero-actions .button{font-size:12px}.hero-small{margin-top:14px;font-size:12px}.hero-art{height:230px;margin-top:0;padding:0 5px 5px}.hero-visual{width:100%;min-width:0;height:240px;transform:none}.overview-stats{column-gap:17px;margin:23px 0 27px;padding-bottom:22px}.overview-stat{gap:10px}.overview-stat>div>div{display:block}.overview-stat strong{margin-right:6px;font-size:23px;display:inline-block}.overview-stat div span,.overview-stat p{font-size:12px}.overview-stat:nth-child(odd){padding-right:4px}.stat-icon{width:33px;height:37px}.stat-icon svg{width:20px}.section-heading{gap:12px;margin-bottom:16px}.section-heading h2{font-size:18px}.section-heading p{font-size:12px;line-height:1.7}.section-heading .text-button{white-space:nowrap;font-size:12px}.module-row{gap:10px;padding:19px 12px}.module-number{font-size:12px}.module-icon{width:37px;height:41px}.module-description h3{font-size:12px;line-height:1.5}.module-description p{font-size:12px;line-height:1.7}.module-meta{gap:6px;font-size:12px}.module-description{padding-right:4px}.module-end{gap:0}.start-here{display:none}.module-lessons{padding-left:22px;padding-right:15px}.module-lessons button{font-size:12px;line-height:1.6}.overview-aside{gap:16px}.lab-preview,.recall-preview{padding:19px 16px}.lab-preview h3{margin-top:14px;font-size:17px;line-height:1.4}.lab-preview>p{font-size:12px}.tiny-tag{display:none}.curve-chart{margin-top:16px}.chart-legend{gap:10px;font-size:12px}.lab-preview .button{gap:4px;padding:9px 8px;font-size:12px}.preview-footnote{font-size:12px}.recall-preview h3{font-size:18px}.recall-preview p{font-size:12px}.recall-icon{display:none}.recall-preview .eyebrow{font-size:12px}.recall-preview{height:100%;min-height:0}.recall-preview .text-button{margin-top:20px}.benchmark-strip{gap:17px;padding:21px}.benchmark-strip h2{font-size:18px}.benchmark-strip p{font-size:12px;line-height:1.7}.benchmark-names span{font-size:12px}.footer{flex-wrap:wrap;padding:19px 21px;font-size:12px;line-height:1.7}.footer button{font-size:12px}.page-intro{margin-top:2px}.page-intro h1{font-size:30px}.page-intro p{font-size:12px}.path-summary{padding:20px;display:block}.path-summary h3{font-size:14px}.path-summary p{font-size:12px;line-height:1.7}.path-summary>.progress-track{width:100%;margin-top:20px}.filter-chips{gap:6px}.filter-chips button{padding:8px 10px;font-size:12px}.full-module-list .module-row{gap:10px;padding:20px 14px}.full-module-list .module-description h3{font-size:14px;line-height:1.5}.full-module-list .module-description p{font-size:12px}.full-module-list .module-icon{width:36px;height:41px}.full-module-list .module-meta,.full-module-list .level-tag{font-size:12px}.full-module-list .module-lessons{padding-left:22px;padding-right:16px}.full-module-list .module-lessons button{font-size:12px}.full-module-list .module-number{display:none}.path-bottom{padding:15px 5px}.tabs{gap:20px}.tabs button{font-size:12px}.lab-heading{padding:20px}.lab-heading h2{font-size:20px}.lab-heading>.tag{padding:5px;font-size:12px}.lab-heading .eyebrow{font-size:12px}.lab-controls,.lab-results{padding:20px}.lab-controls .button{width:100%}.lab-bottom{flex-direction:column;gap:16px;padding:19px 20px}.lab-bottom p{font-size:12px}.lab-explainer{grid-template-columns:1fr;gap:22px}.lab-explainer h2{font-size:23px}.lab-explainer p{font-size:12px}.source-card{padding:21px}.result-numbers{justify-content:flex-start;gap:14px}.result-numbers>div{flex:1}.result-numbers>div>span{font-size:12px}.result-numbers strong{font-size:25px}.result-numbers strong.interval-number{white-space:nowrap;margin-top:9px;font-size:20px}.chart-caption{font-size:12px}.interval-chart{margin-top:15px}.metric-row{gap:8px}.metric-row strong{font-size:20px}.metric-row span{font-size:12px}.confusion-matrix{grid-template-columns:56px 1fr 1fr;gap:6px}.confusion-matrix>span,.confusion-matrix div span{font-size:12px}.confusion-matrix>div{padding:18px 7px}.lesson-content h1{font-size:32px}.lesson-lead{font-size:15px}.lesson-meta{gap:12px;font-size:12px}.lesson-section{gap:12px}.lesson-section h2{font-size:21px}.lesson-section p{font-size:14px;line-height:1.9}.worked-example{padding:20px}.worked-example p{font-size:13px}.takeaway{padding:20px 17px}.takeaway p{font-size:14px}.quiz{padding:21px 18px}.quiz h2{font-size:18px}.quiz-options button{gap:9px;padding:12px 10px;font-size:12px}.quiz-feedback{padding:15px 12px}.quiz-feedback p{font-size:12px}.quiz>.button{gap:9px;width:100%;font-size:12px}.lesson-actions{flex-direction:column;align-items:stretch;gap:12px}.lesson-actions p,.lesson-actions .button{font-size:12px}.lesson-aside{grid-template-columns:1fr}.aside-module,.note-card{padding:22px}.aside-module>button,.note-card p{font-size:12px}.note-card textarea{font-size:13px}.note-card .button,.lesson-source p,.lesson-source small{font-size:12px}.explorer-tools{display:block}.inline-search{margin-top:-7px;margin-bottom:20px;padding:11px}.inline-search input{width:100%;font-size:12px}.benchmark-grid{grid-template-columns:1fr;gap:22px}.benchmark-art{height:145px}.benchmark-art>svg{width:250px;height:120px}.benchmark-card-body{padding:25px}.benchmark-card h2{font-size:25px}.benchmark-card-body>p{font-size:13px}.benchmark-stat strong{font-size:29px}.benchmark-stat span,.benchmark-metric strong{font-size:12px}.benchmark-card-body>p.benchmark-limitation{min-height:0;font-size:12px}.benchmark-limitation strong,.benchmark-card .text-button,.compare-toggle{font-size:12px}.learning-science{grid-template-columns:1fr;gap:30px;padding:25px}.learning-science h2{font-size:33px}.learning-science>div>p{font-size:13px}.learning-principles p{font-size:12px}.learning-principles h3{font-size:15px}.science-footnote{font-size:12px}.source-list>a{gap:15px;padding:23px 3px}.source-list h3{font-size:14px}.source-list p,.source-list small{font-size:12px}.source-list>a>svg{width:18px}.source-index{font-size:12px}.glossary-search{gap:10px;padding:15px}.glossary-search input{min-width:0;font-size:12px}.glossary-search>span{font-size:12px}.glossary-list article{gap:15px;padding:23px 0}.glossary-list h2{font-size:17px}.glossary-list p{font-size:13px}.page-intro.with-action{display:block}.page-intro.with-action .button{margin-top:20px}.notebook-grid{grid-template-columns:1fr}.notebook-editor,.bookmark-panel{padding:22px}.notebook-editor textarea{font-size:13px}.bookmark-empty{padding:25px 0 12px}.progress-stat-grid{gap:13px}.progress-stat-grid>div{padding:20px}.progress-stat-grid strong{font-size:28px}.progress-stat-grid span{font-size:12px}.progress-columns{grid-template-columns:1fr;gap:28px}.progress-module{gap:15px}.progress-module h3{font-size:13px}.review-card{padding:27px}.review-card h2{font-size:27px}.review-card p{font-size:13px}.practice-actions{gap:15px}.practice-actions .button,.practice-actions .text-button{font-size:12px}.empty-state{margin:40px auto}.empty-state h1{font-size:28px}.empty-state p{font-size:13px}.search-dialog{margin-top:70px}.search-dialog-input{gap:10px;padding:16px}.search-dialog-input input{min-width:0;font-size:12px}.search-results{padding:16px}.search-results strong{font-size:12px}.search-hint{padding:14px 17px;font-size:12px}.skip-link{left:15px}.table-scroll th,.table-scroll td{min-width:110px;padding:12px;font-size:12px}}@media(max-width:400px){.main-content{padding-left:17px;padding-right:17px}.overview-intro h1{font-size:24px}.hero-copy{padding-left:22px;padding-right:20px}.hero-copy h2{font-size:31px}.hero-actions{gap:12px}.hero-actions>span{font-size:12px}.hero-art{height:212px}.hero-visual{height:225px}.overview-stat div span,.overview-stat p{font-size:12px}.overview-stats{gap:17px 10px}.overview-stat{gap:7px}.overview-aside{grid-template-columns:1fr}.recall-preview{padding:24px}.recall-preview h3{font-size:22px}.recall-preview h3 br{display:none}.recall-preview p{max-width:none;font-size:12px}.lab-preview{padding:23px}.lab-preview h3{font-size:21px}.lab-preview>p,.lab-preview .button,.chart-legend,.preview-footnote,.module-description h3,.module-description p,.module-meta,.level-tag{font-size:12px}.module-icon{width:32px;height:37px}.module-row{gap:8px}.module-description{padding:0}.overview-columns .section-heading p{font-size:12px}.overview-columns .section-heading h2{font-size:17px}.overview-columns .section-heading .text-button{font-size:12px}.result-numbers strong.interval-number{font-size:18px}.result-numbers>div>span{font-size:12px}.lab-results{padding:19px 16px}.lab-heading{padding:20px 16px}.lab-heading>.tag{font-size:12px}.eval-flow>div{gap:5px;font-size:12px}.eval-flow>div>span{font-size:12px}.eval-flow>div>svg{width:10px;margin-right:2px}}@media(prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@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-border-style{syntax:"*";inherits:false;initial-value:solid}@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}@property --tw-ease{syntax:"*";inherits:false}.track-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:24px 0 32px}.track-cards>button{text-align:left;padding:26px;border:1px solid var(--line);border-radius:14px;background:#f4f7ed}.track-cards>button:last-child{background:#f4f5f1}.track-cards h2{display:flex;align-items:center;justify-content:space-between;font-size:23px;margin:12px 0}.track-cards p{font-size:15px;line-height:1.6;color:#56684f}.track-cards button:hover{border-color:#8aa47a;transform:translateY(-2px)}.brand{font-size:23px;gap:9px}.markdown-lesson{font-size:18px;line-height:1.85;color:#39463b;overflow-wrap:anywhere}.markdown-lesson h2{font-size:26px;line-height:1.3;margin:38px 0 16px;color:#293c2d;letter-spacing:-.6px}.markdown-lesson h3{font-size:22px;margin:24px 0 12px}.markdown-lesson p{margin:16px 0 22px}.markdown-lesson ul,.markdown-lesson ol{padding-left:24px;margin:16px 0;list-style:revert}.markdown-lesson li{margin:8px 0}.markdown-lesson a{text-decoration:underline;color:var(--forest)}.markdown-lesson pre,.code-exercise pre{overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;font-size:14px;line-height:1.7;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.markdown-lesson table{border-collapse:collapse;width:100%;font-size:15px}.markdown-lesson th,.markdown-lesson td{padding:12px;border:1px solid var(--line);text-align:left}.code-exercise{margin:32px 0;padding:26px;background:#f4f6ef;border:1px solid #dce4d5;border-radius:14px}.code-exercise h2{font-size:23px;line-height:1.4;margin:12px 0}.code-exercise>p{font-size:16px;line-height:1.7;margin-bottom:18px}.code-exercise textarea{width:100%;resize:vertical;background:#18271f;color:#e8f0e3;font:14px/1.8 ui-monospace,SFMono-Regular,Menlo,monospace;border:1px solid #344c3b;border-radius:10px;padding:18px;tab-size:2}.code-exercise .filter-chips{margin:16px 0}.exercise-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin:18px 0}.code-output{--output-success: #285335;--output-warning: #785016;--output-error: #a4332f;--output-info: #53615c;min-height:90px;background:#e7eddf;border-radius:9px;padding:18px;color:#2f4c36}.code-output .output-success{color:var(--output-success)}.code-output .output-warn{color:var(--output-warning)}.code-output .output-error{color:var(--output-error)}.code-output .output-info{color:var(--output-info)}.code-output .output-label{font-weight:650}.javascript-editor{min-width:0}.benchmark-links{display:flex;flex-wrap:wrap;align-items:center;gap:14px 24px;margin-top:20px}.benchmark-links a:hover,.comparison-section th a:hover{text-decoration:underline;text-underline-offset:3px}.code-editor-loading{min-height:200px}.study-helper{border:1px solid var(--line);padding:20px;border-radius:12px;margin:24px 0;background:#f7f8f3;font-size:14px;line-height:1.7}.study-helper summary{font-weight:650;cursor:pointer}.study-helper p{margin:12px 0}.study-helper textarea{width:100%;border:1px solid var(--line);padding:10px;border-radius:7px;background:#fff;resize:vertical;margin:10px 0}.study-answer{white-space:pre-wrap;margin-top:16px;border-top:1px solid var(--line);padding-top:16px}.lab-track-switch{margin:0 0 26px}.agent-lab-panel{padding:32px;border:1px solid var(--line);border-radius:16px;background:#fff;max-width:1040px}.agent-lab-panel h2{font-size:30px;line-height:1.3;letter-spacing:-.7px;margin:12px 0}.agent-lab-panel>p{max-width:760px;font-size:17px;line-height:1.7;margin:16px 0 24px;color:#52644c}.check-control{display:flex;align-items:center;gap:10px;font-size:16px;margin:24px 0}.check-control input{width:18px;height:18px}.trace-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin:28px 0}.trace-flow>div{position:relative;background:#f4f6f0;border:1px solid #e1e6da;border-radius:10px;display:flex;align-items:center;flex-direction:column;gap:12px;padding:23px 10px;color:#596650}.trace-flow>div>svg{position:absolute;right:-14px;top:45%;z-index:1;background:#fff}.trace-flow>div>span{display:flex;height:28px;align-items:center;font-family:ui-monospace,monospace}.trace-flow .current{background:#e6efda;border-color:#729563;color:#2a4a30;box-shadow:0 0 0 3px #dce8d0}.trace-flow .visited{background:#edf3e6;color:#3e6138}.trace-observation{background:#f6f8f1;padding:28px;border-left:3px solid #77976b;min-height:160px}.trace-observation h3{font-size:21px;line-height:1.7;margin:12px 0 0;max-width:750px}.context-bar{height:62px;display:flex;background:#f1f3ed;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:30px 0 20px}.context-bar>div{transition:width .2s ease;border-right:2px solid #fff}.budget-result{display:flex;flex-direction:column;gap:8px;background:#edf4e5;padding:23px;border-radius:10px;color:#325138;margin:22px 0}.budget-result strong{font-size:24px;letter-spacing:-.6px}.budget-result span{font-size:16px}.budget-result.over-budget{background:#fff0e4;color:#874b2b}.context-sliders{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin:28px 0}.context-sliders label{display:flex;flex-direction:column;gap:15px;font-size:16px}.context-sliders label>span{display:flex;align-items:center;gap:8px}.context-sliders i{width:10px;height:10px;display:inline-block;border-radius:50%}.context-sliders output{margin-left:auto;font-weight:650;font-variant-numeric:tabular-nums}.context-sliders input{width:100%}.field-label{display:block;font-weight:600;font-size:16px;margin:20px 0 10px}.lab-text-input,.agent-lab-panel select{width:100%;max-width:680px;border:1px solid #cdd7c5;background:#fff;border-radius:9px;padding:13px 16px;font:inherit}.range-control{display:flex;flex-direction:column;max-width:400px;gap:16px;margin:26px 0;font-size:16px}.retrieval-metrics{display:flex;gap:50px;margin:28px 0;padding:24px;background:#f3f7ec;border-radius:10px}.retrieval-metrics>div{display:flex;flex-direction:column;gap:10px}.retrieval-metrics span{font-size:12px;letter-spacing:1px;color:#54664b}.retrieval-metrics strong{font-size:34px;font-weight:550}.retrieval-results article{border:1px solid var(--line);padding:22px;border-radius:10px;margin:12px 0}.retrieval-results h3{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:8px 0;font-size:21px}.retrieval-results small{font-size:12px;font-weight:400;color:#52674a}.retrieval-results p{font-size:16px;line-height:1.7;margin-bottom:16px}.retry-timeline{list-style:none;margin:26px 0;padding:0}.retry-timeline li{display:flex;gap:18px;align-items:flex-start;padding:15px 0;border-bottom:1px solid var(--line)}.retry-timeline li>span{width:32px;height:32px;border-radius:50%;background:#eaf1e1;display:grid;place-items:center}.retry-timeline p{margin-top:7px;font-size:15px;color:#55694d}.agent-lab-panel .takeaway{margin:30px 0 0}.agent-lab-panel .takeaway p{font-size:16px;line-height:1.8}.lesson-content{min-width:0}.nav-item{font-size:14px}.overview-intro>div>p,.hero-copy>p,.page-intro>p{font-size:16px;line-height:1.7}.module-description h3{font-size:16px;line-height:1.4}.module-description p{font-size:14px;line-height:1.6}.module-meta,.module-lessons small{font-size:12px}.module-row{min-height:118px}.module-lessons button{font-size:14px}.overview-stat div span,.overview-stat p{font-size:12px}.button,.text-button{font-size:14px}.lab-preview>p,.recall-preview p,.learning-note p{font-size:14px;line-height:1.7}.breadcrumb{font-size:14px}@media(max-width:767px){.track-cards{grid-template-columns:1fr;gap:12px}.track-cards>button{padding:22px}.agent-lab-panel{padding:22px 18px}.agent-lab-panel h2{font-size:26px}.trace-flow{grid-template-columns:1fr;gap:8px}.trace-flow>div{flex-direction:row;padding:12px 16px}.trace-flow>div>svg{display:none}.context-sliders{grid-template-columns:1fr}.code-exercise{padding:20px 14px;margin-left:-4px;margin-right:-4px}.code-exercise textarea{font-size:13px;padding:12px}.retrieval-metrics{gap:24px;padding:20px}.retrieval-metrics strong{font-size:28px}.retrieval-results h3{align-items:flex-start;flex-direction:column}.markdown-lesson{font-size:17px}.trace-observation{padding:20px}}@media(prefers-reduced-motion:reduce){.context-bar>div,.track-cards>button{transition:none}}.discovery-links{margin:24px 32px;font-size:13px;color:var(--text-muted)}.discovery-links summary{cursor:pointer}.discovery-links nav{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;padding-top:16px}.discovery-links a{text-decoration:underline;text-underline-offset:3px}:root[data-theme=dark]{color:#e0eadb;background:#18251e}:root[data-theme=dark] button:focus-visible,:root[data-theme=dark] a:focus-visible,:root[data-theme=dark] input:focus-visible,:root[data-theme=dark] textarea:focus-visible{outline:3px solid #405440}:root[data-theme=dark] ::selection{background:#233328}:root[data-theme=dark] .sidebar{background:#18251e}:root[data-theme=dark] .brand-period{color:#b4c9a5}:root[data-theme=dark] .brand-mark{color:#e5efdb}:root[data-theme=dark] .sidebar-rule{background:#233328}:root[data-theme=dark] .nav-label{color:#b4c9a5}:root[data-theme=dark] .nav-item{color:#b4c9a5}:root[data-theme=dark] .nav-item svg{color:#b4c9a5}:root[data-theme=dark] .nav-item.active{background:#233328;color:#e0eadb}:root[data-theme=dark] .nav-item.active svg{color:#e0eadb}:root[data-theme=dark] .nav-item:hover{background:#233328;color:#e0eadb}:root[data-theme=dark] .nav-active-dot{background:#557742}:root[data-theme=dark] .new-tag{background:#233328;border:1px solid #405440;color:#b4c9a5}:root[data-theme=dark] .learning-note{border:1px solid #405440;background:#18251e}:root[data-theme=dark] .learning-note .flex{color:#b4c9a5}:root[data-theme=dark] .learning-note p{color:#b4c9a5}:root[data-theme=dark] .learning-note .text-button{color:#b4c9a5}:root[data-theme=dark] .profile-avatar{background:#233328;color:#b4c9a5}:root[data-theme=dark] .profile-avatar>span{border:2px solid #405440;background:#7c966c}:root[data-theme=dark] .profile small{color:#b4c9a5}:root[data-theme=dark] .profile>svg{color:#b4c9a5}:root[data-theme=dark] .topbar{background:#18251e}:root[data-theme=dark] .topbar-home{color:#b4c9a5}:root[data-theme=dark] .breadcrumb-divider{color:#b4c9a5}:root[data-theme=dark] .breadcrumb{color:#b4c9a5}:root[data-theme=dark] .search-trigger{color:#b4c9a5}:root[data-theme=dark] .search-trigger kbd{color:#b4c9a5;background:#18251e;border:1px solid #405440}:root[data-theme=dark] .progress-trigger{color:#b4c9a5}:root[data-theme=dark] .progress-trigger strong{color:#b4c9a5;background:#18251e}:root[data-theme=dark] .mini-progress>span{background:#18251e;color:#b4c9a5}:root[data-theme=dark] .eyebrow{color:#b4c9a5}:root[data-theme=dark] .greeting{color:#b4c9a5}:root[data-theme=dark] .tiny-spark{color:#b4c9a5}:root[data-theme=dark] .overview-intro p{color:#b4c9a5}:root[data-theme=dark] .intro-chip{color:#b4c9a5}:root[data-theme=dark] .hero-panel{background:#18251e;border:1px solid #405440}:root[data-theme=dark] .hero-eyebrow{color:#b4c9a5}:root[data-theme=dark] .hero-eyebrow>span{background:#718951}:root[data-theme=dark] .hero-copy h2{color:#e0eadb}:root[data-theme=dark] .hero-copy>p{color:#b4c9a5}:root[data-theme=dark] .primary{background:#315d46;color:#fff;border-color:#405440}:root[data-theme=dark] .primary:hover{background:#234b36}:root[data-theme=dark] .secondary{background:#18251e;color:#e0eadb;border-color:#405440}:root[data-theme=dark] .secondary:hover{background:#18251e}:root[data-theme=dark] .outline{border-color:#405440;background:#18251e;color:#b4c9a5}:root[data-theme=dark] .outline:hover{background:#233328}:root[data-theme=dark] .hero-actions>span{color:#b4c9a5}:root[data-theme=dark] .hero-small{color:#b4c9a5}:root[data-theme=dark] .hero-art{background:radial-gradient(ellipse at 52% 70%,#cfddbf60,transparent 64%)}:root[data-theme=dark] .stat-icon{background:#18251e;color:#b4c9a5}:root[data-theme=dark] .overview-stat strong{color:#e0eadb}:root[data-theme=dark] .overview-stat div span{color:#b4c9a5}:root[data-theme=dark] .overview-stat p{color:#b4c9a5}:root[data-theme=dark] .section-heading p{color:#b4c9a5}:root[data-theme=dark] .count-label{color:#b4c9a5;border:1px solid #405440;background:#18251e}:root[data-theme=dark] .text-button{color:#b4c9a5}:root[data-theme=dark] .text-button:hover{color:#e0eadb}:root[data-theme=dark] .module-list{background:#18251e}:root[data-theme=dark] .module-row{background:#18251e}:root[data-theme=dark] .module-row:hover{background:#18251e}:root[data-theme=dark] .module-number{color:#b4c9a5}:root[data-theme=dark] .module-icon{background:#18251e;color:#b4c9a5}:root[data-theme=dark] .module-tone-1{background:#18251e;color:#b4c9a5}:root[data-theme=dark] .module-tone-2{background:#18251e;color:#e4c49c}:root[data-theme=dark] .module-tone-3{background:#18251e;color:#b4c9a5}:root[data-theme=dark] .module-tone-4{background:#18251e;color:#b4c9a5}:root[data-theme=dark] .module-tone-5{background:#18251e;color:#b4c9a5}:root[data-theme=dark] .module-description p{color:#b4c9a5}:root[data-theme=dark] .module-meta{color:#b4c9a5}:root[data-theme=dark] .module-meta>i{background:#344b33}:root[data-theme=dark] .level-tag{border:1px solid #405440;background:#18251e;color:#b4c9a5}:root[data-theme=dark] .level-intermediate{background:#18251e;color:#b4c9a5;border-color:#405440}:root[data-theme=dark] .level-advanced{background:#18251e;color:#b4c9a5;border-color:#405440}:root[data-theme=dark] .module-end{color:#b4c9a5}:root[data-theme=dark] .start-here{color:#b4c9a5;background:#18251e}:root[data-theme=dark] .module-progress-count{color:#b4c9a5}:root[data-theme=dark] .module-lessons{background:#18251e;border-top:1px dashed #405440}:root[data-theme=dark] .module-lessons button{color:#b4c9a5}:root[data-theme=dark] .module-lessons small{color:#b4c9a5}:root[data-theme=dark] .module-lessons button:hover{color:#e0eadb}:root[data-theme=dark] .green-text,:root[data-theme=dark] .green-dot{color:#b4c9a5}:root[data-theme=dark] .lab-preview{border:1px solid #405440;background:#18251e}:root[data-theme=dark] .tiny-tag{color:#b4c9a5;border:1px solid #405440}:root[data-theme=dark] .lab-preview>p{color:#b4c9a5}:root[data-theme=dark] .chart-legend{color:#b4c9a5}:root[data-theme=dark] .chart-legend i{background:#5e8655}:root[data-theme=dark] .chart-legend i.pale{background:#344b33}:root[data-theme=dark] .preview-footnote{color:#b4c9a5}:root[data-theme=dark] .recall-preview{border:1px solid #405440;background:#18251e}:root[data-theme=dark] .recall-icon{color:#b4c9a5}:root[data-theme=dark] .recall-preview .eyebrow{color:#b4c9a5}:root[data-theme=dark] .recall-preview p{color:#b4c9a5}:root[data-theme=dark] .quote-note{color:#b4c9a5}:root[data-theme=dark] .quote-note>span{color:#b4c9a5}:root[data-theme=dark] .quote-note small{color:#b4c9a5}:root[data-theme=dark] .benchmark-strip{background:#18251e}:root[data-theme=dark] .benchmark-strip p{color:#b4c9a5}:root[data-theme=dark] .benchmark-names span{border:1px solid #405440;background:#18251e;color:#b4c9a5}:root[data-theme=dark] .benchmark-names span:last-child{color:#b4c9a5}:root[data-theme=dark] .icon-button{color:#b4c9a5}:root[data-theme=dark] .icon-button:hover{background:#233328}:root[data-theme=dark] .footer{color:#b4c9a5}:root[data-theme=dark] .footer-dot{background:#96a980}:root[data-theme=dark] .footer button{color:#b4c9a5}:root[data-theme=dark] .page-intro p{color:#b4c9a5}:root[data-theme=dark] .path-summary{background:#18251e;border:1px solid #405440}:root[data-theme=dark] .path-summary>div:first-child{color:#b4c9a5}:root[data-theme=dark] .path-summary h3{color:#e0eadb}:root[data-theme=dark] .path-summary p{color:#b4c9a5}:root[data-theme=dark] .progress-track{background:#233328}:root[data-theme=dark] .progress-track>span{background:#7e9b66}:root[data-theme=dark] .filter-chips button{border:1px solid #405440;color:#b4c9a5}:root[data-theme=dark] .filter-chips button:hover{background:#18251e}:root[data-theme=dark] .filter-chips button.selected{background:#233328;border-color:#405440;color:#b4c9a5}:root[data-theme=dark] .full-module-list{background:#18251e}:root[data-theme=dark] .path-bottom{color:#b4c9a5}:root[data-theme=dark] .path-bottom strong{color:#b4c9a5}:root[data-theme=dark] .tabs button{color:#b4c9a5}:root[data-theme=dark] .tabs button>span{color:#b4c9a5}:root[data-theme=dark] .tabs button[aria-selected=true]{color:#e0eadb;border-bottom-color:#405440}:root[data-theme=dark] .lab-shell{border:1px solid #405440;background:#18251e}:root[data-theme=dark] .tag.muted{background:#18251e;color:#b4c9a5;border:1px solid #405440}:root[data-theme=dark] .status-dot{background:#8ba26b}:root[data-theme=dark] .lab-controls{background:#18251e}:root[data-theme=dark] .callout{background:#18251e;color:#b4c9a5}:root[data-theme=dark] .slider-label{color:#b4c9a5}:root[data-theme=dark] .slider-label strong{color:#e0eadb}:root[data-theme=dark] .range-ends{color:#b4c9a5}:root[data-theme=dark] .help-text{color:#b4c9a5}:root[data-theme=dark] .result-numbers>div>span{color:#b4c9a5}:root[data-theme=dark] .result-numbers strong{color:#e0eadb}:root[data-theme=dark] .interval-number>span{color:#b4c9a5}:root[data-theme=dark] .chart-caption{color:#b4c9a5}:root[data-theme=dark] .legend-square{background:#86a76b}:root[data-theme=dark] .legend-square.gray{background:#344b33}:root[data-theme=dark] .sample-history p{color:#b4c9a5}:root[data-theme=dark] .sample-chips span{color:#b4c9a5;background:#18251e;border:1px solid #405440}:root[data-theme=dark] .lab-bottom{background:#18251e;border-top:1px solid #405440}:root[data-theme=dark] .lab-bottom p{color:#b4c9a5}:root[data-theme=dark] .lab-explainer p{color:#b4c9a5}:root[data-theme=dark] .source-card{border:1px solid #405440;background:#18251e}:root[data-theme=dark] .source-card>span:last-child{color:#b4c9a5}:root[data-theme=dark] .lab-tip{border-top:1px solid #405440;color:#b4c9a5}:root[data-theme=dark] .matrix-label{color:#b4c9a5}:root[data-theme=dark] .confusion-matrix>span{color:#b4c9a5}:root[data-theme=dark] .true-cell{background:#233328;border:1px solid #405440;color:#b4c9a5}:root[data-theme=dark] .false-cell{background:#18251e;border:1px solid #405440;color:#e4c49c}:root[data-theme=dark] .metric-row span{color:#b4c9a5}:root[data-theme=dark] .metric-row strong{color:#b4c9a5}:root[data-theme=dark] .recommendation{border:1px solid #405440;background:#18251e}:root[data-theme=dark] .recommendation h3{color:#e0eadb}:root[data-theme=dark] .recommendation p{color:#b4c9a5}:root[data-theme=dark] .lesson-lead{color:#b4c9a5}:root[data-theme=dark] .lesson-meta{color:#b4c9a5}:root[data-theme=dark] .completed-label{color:#e0eadb}:root[data-theme=dark] .eval-flow{background:#18251e;border:1px solid #405440}:root[data-theme=dark] .eval-flow>div{color:#b4c9a5}:root[data-theme=dark] .eval-flow>div>span{color:#b4c9a5}:root[data-theme=dark] .eval-flow>div>svg{color:#b4c9a5}:root[data-theme=dark] .section-number{color:#b4c9a5}:root[data-theme=dark] .lesson-section p{color:#b4c9a5}:root[data-theme=dark] .worked-example{background:#18251e;border:1px solid #405440;border-left:3px solid #405440}:root[data-theme=dark] .worked-example p{color:#b4c9a5}:root[data-theme=dark] .takeaway{background:#18251e;color:#b4c9a5}:root[data-theme=dark] .takeaway p{color:#b4c9a5}:root[data-theme=dark] .quiz{border:1px solid #405440;background:#18251e}:root[data-theme=dark] .quiz-options button{border:1px solid #405440;background:#18251e;color:#b4c9a5}:root[data-theme=dark] .quiz-options button:hover:not(:disabled){border-color:#405440;background:#18251e}:root[data-theme=dark] .answer-letter{border:1px solid #405440}:root[data-theme=dark] .quiz-options button.selected{border-color:#405440;background:#18251e;color:#b4c9a5}:root[data-theme=dark] .quiz-options button.correct{background:#233328;border-color:#405440;color:#b4c9a5}:root[data-theme=dark] .quiz-options button.incorrect{background:#18251e;color:#e4c49c;border-color:#405440}:root[data-theme=dark] .quiz-feedback.success{background:#18251e;color:#b4c9a5}:root[data-theme=dark] .quiz-feedback.retry{background:#18251e;color:#e4c49c}:root[data-theme=dark] .lesson-actions p{color:#b4c9a5}:root[data-theme=dark] .lesson-source{color:#b4c9a5}:root[data-theme=dark] .lesson-source small{color:#b4c9a5}:root[data-theme=dark] .lesson-lab-link{border:1px solid #405440;background:#18251e}:root[data-theme=dark] .lesson-lab-link p{color:#b4c9a5}:root[data-theme=dark] .aside-module{border:1px solid #405440;background:#18251e}:root[data-theme=dark] .aside-module>button{color:#b4c9a5}:root[data-theme=dark] .aside-module>button>span{border:1px solid #405440}:root[data-theme=dark] .aside-module>button.current{color:#b4c9a5;background:#18251e}:root[data-theme=dark] .note-card{background:#18251e;border:1px solid #405440;color:#b4c9a5}:root[data-theme=dark] .note-card h3{color:#b4c9a5}:root[data-theme=dark] .note-card textarea{background:#18251e;border:1px solid #405440;color:#b4c9a5}:root[data-theme=dark] .note-card textarea::placeholder{color:#b4c9a5}:root[data-theme=dark] .aside-tip{color:#b4c9a5}:root[data-theme=dark] .is-saved{color:#b4c9a5;background:#18251e}:root[data-theme=dark] .inline-search{border:1px solid #405440;color:#b4c9a5}:root[data-theme=dark] .inline-search input{color:#b4c9a5}:root[data-theme=dark] .inline-search input::placeholder{color:#b4c9a5}:root[data-theme=dark] .data-notice{color:#b4c9a5}:root[data-theme=dark] .benchmark-card{background:#18251e;border:1px solid #405440}:root[data-theme=dark] .benchmark-card:hover{border-color:#405440}:root[data-theme=dark] .benchmark-art{background:#18251e;border-bottom:1px solid #405440}:root[data-theme=dark] .benchmark-year{color:#b4c9a5}:root[data-theme=dark] .benchmark-card-body>p{color:#b4c9a5}:root[data-theme=dark] .compare-toggle{color:#b4c9a5}:root[data-theme=dark] .benchmark-stat strong{color:#b4c9a5}:root[data-theme=dark] .benchmark-stat span{color:#b4c9a5}:root[data-theme=dark] .benchmark-metric{border-top:1px solid #405440;border-bottom:1px solid #405440}:root[data-theme=dark] .benchmark-metric>span{color:#b4c9a5}:root[data-theme=dark] .benchmark-metric strong{color:#b4c9a5}:root[data-theme=dark] .benchmark-limitation strong{color:#b4c9a5}:root[data-theme=dark] .table-scroll{border:1px solid #405440}:root[data-theme=dark] th,:root[data-theme=dark] td{border-bottom:1px solid #405440}:root[data-theme=dark] thead{background:#18251e;color:#b4c9a5}:root[data-theme=dark] tbody th{color:#b4c9a5}:root[data-theme=dark] tbody td{color:#b4c9a5}:root[data-theme=dark] .learning-science{background:#18251e;border:1px solid #405440}:root[data-theme=dark] .learning-science>div>p{color:#b4c9a5}:root[data-theme=dark] .learning-principles>div>span{background:#233328;color:#b4c9a5}:root[data-theme=dark] .learning-principles h3{color:#b4c9a5}:root[data-theme=dark] .learning-principles p{color:#b4c9a5}:root[data-theme=dark] .science-footnote{color:#b4c9a5}:root[data-theme=dark] .source-list{border-top:1px solid #405440}:root[data-theme=dark] .source-list>a{border-bottom:1px solid #405440}:root[data-theme=dark] .source-list>a:hover{background:#18251e}:root[data-theme=dark] .source-index{color:#b4c9a5}:root[data-theme=dark] .source-list h3{color:#e0eadb}:root[data-theme=dark] .source-list p{color:#b4c9a5}:root[data-theme=dark] .source-list small{color:#b4c9a5}:root[data-theme=dark] .source-list>a>svg{color:#b4c9a5}:root[data-theme=dark] .glossary-search{border:1px solid #405440;background:#18251e;color:#b4c9a5}:root[data-theme=dark] .glossary-search input{color:#b4c9a5}:root[data-theme=dark] .glossary-search input::placeholder{color:#b4c9a5}:root[data-theme=dark] .glossary-search>span{color:#b4c9a5}:root[data-theme=dark] .glossary-list article{border-bottom:1px solid #405440}:root[data-theme=dark] .glossary-list article>span{background:#18251e;color:#b4c9a5}:root[data-theme=dark] .glossary-list h2{color:#e0eadb}:root[data-theme=dark] .glossary-list p{color:#b4c9a5}:root[data-theme=dark] .notebook-editor{border:1px solid #405440;background:#18251e}:root[data-theme=dark] .notebook-editor label{color:#b4c9a5}:root[data-theme=dark] .notebook-editor textarea{border:1px solid #405440;background:#18251e;color:#b4c9a5}:root[data-theme=dark] .notebook-editor textarea::placeholder{color:#b4c9a5}:root[data-theme=dark] .editor-bottom>span{color:#b4c9a5}:root[data-theme=dark] .bookmark-panel{border:1px solid #405440;background:#18251e}:root[data-theme=dark] .bookmark-empty{color:#b4c9a5}:root[data-theme=dark] .bookmark-empty p{color:#b4c9a5}:root[data-theme=dark] .bookmark-empty>span{color:#b4c9a5}:root[data-theme=dark] .bookmark-item{border-top:1px solid #405440}:root[data-theme=dark] .bookmark-item>button:first-child{color:#b4c9a5}:root[data-theme=dark] .lesson-notes article{border:1px solid #405440;background:#18251e}:root[data-theme=dark] .lesson-notes article>p{color:#b4c9a5}:root[data-theme=dark] .progress-stat-grid>div{background:#18251e;border:1px solid #405440;color:#b4c9a5}:root[data-theme=dark] .progress-stat-grid strong{color:#b4c9a5}:root[data-theme=dark] .progress-stat-grid span{color:#b4c9a5}:root[data-theme=dark] .progress-module{border-bottom:1px solid #405440;color:#b4c9a5}:root[data-theme=dark] .progress-module h3{color:#b4c9a5}:root[data-theme=dark] .review-card{background:#18251e;border:1px solid #405440;color:#b4c9a5}:root[data-theme=dark] .review-card p{color:#b4c9a5}:root[data-theme=dark] .empty-state>span{background:#18251e;color:#b4c9a5}:root[data-theme=dark] .empty-state p{color:#b4c9a5}:root[data-theme=dark] .storage-error{background:#18251e;color:#e4c49c;border:1px solid #405440}:root[data-theme=dark] .search-dialog{border:1px solid #405440;background:#18251e;color:#e0eadb}:root[data-theme=dark] .search-dialog::backdrop{background:#24352455}:root[data-theme=dark] .search-dialog-input{border-bottom:1px solid #405440;color:#b4c9a5}:root[data-theme=dark] .search-dialog-input input{color:#b4c9a5}:root[data-theme=dark] .search-dialog-input input::placeholder{color:#b4c9a5}:root[data-theme=dark] .search-results>button:hover{background:#18251e}:root[data-theme=dark] .search-results small{color:#b4c9a5}:root[data-theme=dark] .search-results>button>svg{color:#b4c9a5}:root[data-theme=dark] .search-hint{border-top:1px solid #405440;color:#b4c9a5}:root[data-theme=dark] .no-results{color:#b4c9a5}:root[data-theme=dark] .skip-link{background:#315d46;color:#fff}@media(max-width:767px){:root[data-theme=dark] .sidebar-backdrop{background:#1e342645}}:root[data-theme=dark] .track-cards>button{background:#18251e}:root[data-theme=dark] .track-cards>button:last-child{background:#18251e}:root[data-theme=dark] .track-cards p{color:#b4c9a5}:root[data-theme=dark] .track-cards button:hover{border-color:#405440}:root[data-theme=dark] .markdown-lesson{color:#e0eadb}:root[data-theme=dark] .markdown-lesson h2{color:#e0eadb}:root[data-theme=dark] .code-exercise{background:#18251e;border:1px solid #405440}:root[data-theme=dark] .code-exercise textarea{background:#18271f;color:#e8f0e3;border:1px solid #405440}:root[data-theme=dark] .code-output{--output-success: #acd68f;--output-warning: #efcb84;--output-error: #f1aaa2;--output-info: #c0ccc2;background:#233328;color:#e0eadb}:root[data-theme=dark] .study-helper{background:#18251e}:root[data-theme=dark] .study-helper textarea{background:#18251e}:root[data-theme=dark] .agent-lab-panel{background:#18251e}:root[data-theme=dark] .agent-lab-panel>p{color:#b4c9a5}:root[data-theme=dark] .trace-flow>div{background:#18251e;border:1px solid #405440;color:#b4c9a5}:root[data-theme=dark] .trace-flow>div>svg{background:#18251e}:root[data-theme=dark] .trace-flow .current{background:#233328;border-color:#405440;color:#e0eadb}:root[data-theme=dark] .trace-flow .visited{background:#18251e;color:#e0eadb}:root[data-theme=dark] .trace-observation{background:#18251e;border-left:3px solid #405440}:root[data-theme=dark] .context-bar{background:#18251e}:root[data-theme=dark] .context-bar>div{border-right:2px solid #405440}:root[data-theme=dark] .budget-result{background:#18251e;color:#e0eadb}:root[data-theme=dark] .budget-result.over-budget{background:#18251e;color:#e4c49c}:root[data-theme=dark] .lab-text-input,:root[data-theme=dark] .agent-lab-panel select{border:1px solid #405440;background:#18251e}:root[data-theme=dark] .retrieval-metrics{background:#18251e}:root[data-theme=dark] .retrieval-metrics span{color:#b4c9a5}:root[data-theme=dark] .retrieval-results small{color:#b4c9a5}:root[data-theme=dark] .retry-timeline li>span{background:#233328}:root[data-theme=dark] .retry-timeline p{color:#b4c9a5}:root[data-theme=dark]{color-scheme:dark;--line: #354735;--cream: #1d2c21;--green-bg: #253b28;--muted: #a9b59f;--forest: #a9c795}:root[data-theme=dark] .button.primary,:root[data-theme=dark] .brand-mark{background:#315d46;color:#edf4e7}:root[data-theme=dark] .code-exercise textarea{background:#101c16;color:#e8f0e3;border-color:#3c5540}:root[data-theme=dark] .topbar{background:#18251ef5}:root[data-theme=dark] .hero-art{color-scheme:light}:root[data-theme=dark] .hero-art svg text{fill:#2d4232}:root[data-theme=dark] .mini-progress>span{background:#192b20}