/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
@layer theme{:root,:host{--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-geist-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,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{.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.container{width:100%}@media (width>=40rem){.container{max-width:40rem}}@media (width>=48rem){.container{max-width:48rem}}@media (width>=64rem){.container{max-width:64rem}}@media (width>=80rem){.container{max-width:80rem}}@media (width>=96rem){.container{max-width:96rem}}.block{display:block}.contents{display:contents}.table{display:table}}:root{--ink:#25324a;--muted:#68738a;--cream:#fff9ee;--paper:#fffefb;--blue:#4387d9;--blue-dark:#2867b2;--blue-pale:#eaf4ff;--coral:#f07762;--coral-pale:#fff0eb;--green:#55a983;--green-pale:#e9f8f0;--yellow:#efb84d;--yellow-pale:#fff5d8}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--cream);color:var(--ink);font-family:var(--font-geist-sans), "Hiragino Sans", "Yu Gothic", sans-serif;margin:0}button,input,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{color:inherit}.homework-app{background:radial-gradient(circle at 6% 7%, #efb84d29 0 3px, transparent 4px), radial-gradient(circle at 92% 16%, #4387d91f 0 4px, transparent 5px), var(--cream);background-size:72px 72px,96px 96px,auto;min-height:100vh;overflow:hidden}.site-header{justify-content:space-between;align-items:center;width:min(1120px,100% - 40px);height:76px;margin:auto;display:flex}.logo{color:var(--ink);letter-spacing:-.04em;align-items:center;gap:10px;font-size:18px;font-weight:850;text-decoration:none;display:inline-flex}.logo-mark{border:2px solid var(--ink);background:var(--yellow);width:38px;height:38px;box-shadow:3px 3px 0 var(--ink);border-radius:13px;place-items:center;font-size:24px;line-height:1;display:grid}.header-note{color:var(--muted);align-items:center;gap:8px;font-size:12px;font-weight:650;display:flex}.status-pip{background:var(--green);width:8px;height:8px;box-shadow:0 0 0 4px var(--green-pale);border-radius:50%}.hero{grid-template-columns:1.1fr .9fr;align-items:center;gap:54px;width:min(1120px,100% - 40px);min-height:470px;margin:auto;padding:54px 0 78px;display:grid}.kicker,.eyebrow{color:var(--blue-dark);letter-spacing:.16em;margin:0 0 12px;font-size:11px;font-weight:900}.hero h1{letter-spacing:-.075em;max-width:670px;margin:0;font-size:clamp(42px,6vw,76px);line-height:1.06}.headline-line{white-space:nowrap;display:block}.hero h1 .headline-accent{z-index:0;width:fit-content;color:var(--blue-dark);position:relative}.hero h1 .headline-accent:after{z-index:-1;background:var(--yellow);content:"";border-radius:20px;height:13px;position:absolute;bottom:5px;left:-5px;right:-5px;transform:rotate(-1deg)}.hero-lead{max-width:570px;color:var(--muted);margin:24px 0 22px;font-size:16px;line-height:1.9}.promise-row{flex-wrap:wrap;gap:9px;display:flex}.promise-row span{background:#ffffffa3;border:1px solid #d7dce3;border-radius:999px;padding:7px 11px;font-size:11px;font-weight:750}.promise-row span:before{color:var(--green);content:"●";margin-right:5px;font-size:8px}.hero-doodle{min-height:310px;position:relative}.doodle-sheet{border:2px solid var(--ink);background:var(--paper);width:min(340px,90%);min-height:292px;box-shadow:12px 14px 0 var(--blue-pale), 14px 16px 0 var(--ink);border-radius:4px;padding:34px 30px;position:absolute;top:10px;right:32px;transform:rotate(3deg)}.doodle-sheet:before{content:"";background:#efb84db8;width:96px;height:24px;position:absolute;top:-12px;left:50%;transform:translate(-50%)rotate(-2deg)}.doodle-label{color:var(--coral);letter-spacing:.12em;margin-bottom:26px;font-size:11px;font-weight:900;display:block}.doodle-sheet b{font-family:var(--font-geist-mono), monospace;font-size:16px;display:block}.doodle-sheet i{border-bottom:1px dashed #9da6b5;height:28px;margin:4px 0 18px;display:block}.doodle-stamp{border:3px double var(--coral);color:var(--coral);border-radius:50%;padding:10px;font-size:12px;font-weight:900;position:absolute;bottom:21px;right:25px;transform:rotate(-11deg)}.pencil{color:var(--coral);font-size:88px;position:absolute;bottom:13px;right:-5px;transform:rotate(-20deg)}.service-overview{grid-template-columns:repeat(3,1fr);gap:10px;width:min(900px,100% - 40px);margin:0 auto 24px;display:grid}.service-overview div{background:#ffffffb3;border:1px solid #ddd8ca;border-radius:12px;gap:5px;padding:16px 18px;display:grid}.service-overview b{color:var(--blue-dark);letter-spacing:.08em;font-size:10px}.service-overview span{color:var(--muted);font-size:11px;line-height:1.6}.generator-section,.worksheet-section{width:min(900px,100% - 40px);margin:0 auto;padding:70px 0 82px}.generator-section{position:relative}.generator-section:before{z-index:-1;content:"";background:#eef6ff;position:absolute;inset:15px -50vw 0;transform:skewY(-1.4deg)}.section-heading{align-items:center;gap:16px;margin-bottom:24px;display:flex}.section-heading h2,.history-section h2{letter-spacing:-.055em;margin:0;font-size:clamp(26px,4vw,38px)}.section-heading .eyebrow{margin-bottom:4px}.step-badge{border:2px solid var(--ink);background:var(--blue);color:#fff;width:48px;height:48px;box-shadow:3px 3px 0 var(--ink);border-radius:50%;flex:none;place-items:center;font-size:19px;font-weight:900;display:grid}.step-badge.coral{background:var(--coral)}.coral-text{color:var(--coral)}.generator-card{border:2px solid var(--ink);background:var(--paper);box-shadow:7px 8px 0 var(--ink);border-radius:22px;padding:clamp(24px,5vw,48px)}.form-block{margin-bottom:30px;display:block}.field-label{margin:0 0 11px;font-size:13px;font-weight:850;display:block}.field-label em{color:#929baa;margin-left:7px;font-size:10px;font-style:normal;font-weight:650}.form-row{grid-template-columns:1fr 1fr;gap:18px;display:grid}.form-row .form-block{min-width:0}select,.form-block input{background:#fff;border:1.5px solid #bfc6d0;border-radius:10px;outline:none;width:100%;height:50px;padding:0 14px}select:focus,input:focus-visible{border-color:var(--blue);box-shadow:0 0 0 4px #4387d91f}.mode-switch{grid-template-columns:1fr 1fr;gap:12px;display:grid}.mode-switch button{cursor:pointer;text-align:left;background:#fff;border:1.5px solid #cfd5dd;border-radius:12px;grid-template-rows:auto auto;grid-template-columns:42px 1fr;align-items:center;gap:2px 10px;min-height:88px;padding:15px;font-size:14px;font-weight:800;display:grid}.mode-switch button>span{background:var(--yellow-pale);color:#b67d10;border-radius:11px;grid-row:1/3;place-items:center;width:40px;height:40px;font-size:20px;display:grid}.mode-switch button:last-child>span{background:var(--blue-pale);color:var(--blue-dark)}.mode-switch button small{color:var(--muted);font-size:10px;font-weight:550}.mode-switch button.selected{border:2px solid var(--blue);background:var(--blue-pale);box-shadow:inset 0 0 0 3px #fff}.subject-grid{grid-template-columns:repeat(4,1fr);gap:10px;display:grid}.subject-button{cursor:pointer;background:#fff;border:1.5px solid #cfd5dd;border-radius:12px;align-items:center;gap:8px;min-height:64px;padding:10px;font-size:13px;font-weight:800;display:flex;position:relative}.subject-button>span{border-radius:8px;place-items:center;width:30px;height:30px;font-size:15px;display:grid}.subject-button>i{font-size:10px;font-style:normal;position:absolute;top:5px;right:7px}.subject-button.blue>span{color:var(--blue-dark);background:var(--blue-pale)}.subject-button.coral>span{color:#c94e3a;background:var(--coral-pale)}.subject-button.green>span{color:#287c59;background:var(--green-pale)}.subject-button.yellow>span{color:#a8730a;background:var(--yellow-pale)}.subject-button.selected{border-width:2px;border-color:currentColor}.subject-button.blue.selected{color:var(--blue-dark);background:var(--blue-pale)}.subject-button.coral.selected{color:#c94e3a;background:var(--coral-pale)}.subject-button.green.selected{color:#287c59;background:var(--green-pale)}.subject-button.yellow.selected{color:#a8730a;background:var(--yellow-pale)}.subject-button:disabled{cursor:not-allowed;opacity:.5}.difficulty-switch{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.difficulty-switch button{cursor:pointer;text-align:left;background:#fff;border:1.5px solid #cfd5dd;border-radius:12px;gap:4px;min-height:68px;padding:12px;display:grid}.difficulty-switch button b{font-size:13px}.difficulty-switch button small{color:var(--muted);font-size:9px}.difficulty-switch button.selected{border:2px solid var(--blue);background:var(--blue-pale)}.range-heading,.range-labels{justify-content:space-between;align-items:center;display:flex}.range-heading .field-label{margin:0}.range-heading strong{color:var(--blue-dark);font-size:14px}.time-range{width:100%;accent-color:var(--blue);margin:16px 0 7px}.range-labels{color:#929baa;font-size:9px;font-weight:650}.generate-button{border:2px solid var(--ink);background:var(--yellow);width:100%;min-height:64px;box-shadow:4px 5px 0 var(--ink);cursor:pointer;border-radius:13px;justify-content:center;align-items:center;gap:12px;font-size:16px;font-weight:900;transition:transform .15s,box-shadow .15s;display:flex}.generate-button span{font-size:25px}.generate-button small{background:#ffffff80;border-radius:99px;padding:5px 8px;font-size:10px}.generate-button:hover{box-shadow:5px 7px 0 var(--ink);transform:translateY(-2px)}.generate-button:active{box-shadow:1px 2px 0 var(--ink);transform:translate(3px,3px)}.generate-button:disabled,.more-button:disabled{cursor:wait;opacity:.65}.generation-error{color:#a33b2f;text-align:center;margin:12px 0 0;font-size:12px;font-weight:700}.guardian-check{color:var(--muted);text-align:center;margin:12px 0 0;font-size:10px;line-height:1.6}.worksheet-section{padding-top:90px}.worksheet-heading{align-items:center}.sheet-actions{gap:8px;margin-left:auto;display:flex}.sheet-actions button,.more-button{border:1.5px solid var(--ink);cursor:pointer;background:#fff;border-radius:9px;padding:10px 14px;font-size:11px;font-weight:800}.sheet-actions .print-button{background:var(--ink);color:#fff}.worksheet-paper{background:linear-gradient(90deg, transparent 39px, #f0776221 40px, transparent 41px), repeating-linear-gradient(0deg, transparent 0 35px, #4387d912 36px), var(--paper);border:1px solid #d9d5ca;padding:clamp(26px,6vw,62px);box-shadow:0 18px 50px #25324a1f}.paper-top{border-bottom:3px double var(--ink);justify-content:space-between;align-items:flex-end;gap:20px;padding-bottom:22px;display:flex}.paper-top span{color:var(--coral);letter-spacing:.16em;font-size:9px;font-weight:900}.paper-top h3{letter-spacing:-.04em;margin:5px 0 0;font-size:25px}.name-line{border-bottom:1px solid var(--ink);min-width:190px;color:var(--muted);padding-bottom:5px;font-size:10px}.name-line b{color:var(--ink);margin-left:12px;font-size:14px}.worksheet-caution{background:var(--yellow-pale);color:#795716;border-radius:6px;margin:12px 0 0;padding:8px 10px;font-size:9px;line-height:1.6}.problem-group{padding:28px 0 12px}.problem-group h4{border-left:5px solid var(--blue);background:var(--blue-pale);margin:0 0 8px;padding:8px 12px;font-size:14px}.problem-row{border-bottom:1px dashed #cbd0d7;grid-template-columns:28px 1fr;gap:10px;padding:17px 8px;display:grid}.problem-number{border:1px solid #9ca5b3;border-radius:50%;place-items:center;width:25px;height:25px;font-size:10px;font-weight:800;display:grid}.problem-row p{margin:2px 0 10px;font-size:13px;line-height:1.7}.problem-row small{color:var(--muted);font-size:9px}.problem-choices{grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 18px;margin:8px 0 12px;padding-left:24px;font-size:11px;display:grid}.object-array{background:#fff;border:1px solid #cbd0d7;border-radius:8px;gap:5px;width:max-content;max-width:100%;margin:8px 0 14px;padding:12px;display:grid}.object-array i{border:1.5px solid var(--blue);background:var(--blue-pale);border-radius:50%;width:10px;height:10px}.rectangle-diagram{width:max-content;color:var(--muted);grid-template-rows:auto auto;grid-template-columns:auto minmax(70px,180px);align-items:center;gap:5px 8px;margin:8px 0 14px;font-size:9px;display:grid}.rectangle-diagram i{border:2px solid var(--blue);background:repeating-linear-gradient(0deg,#0000 0 14px,#4387d91f 15px),repeating-linear-gradient(90deg,#0000 0 14px,#4387d91f 15px);grid-column:2;width:min(180px,40vw);max-height:120px}.rectangle-diagram b{text-align:center;grid-column:2}.answer-line{border-bottom:1px solid #9da6b2;width:min(360px,90%);height:28px}.answer{background:var(--yellow-pale);color:#795716;border-radius:6px;gap:4px;margin-top:8px;padding:8px 10px;font-size:11px;display:grid}.problem-report{color:var(--muted);text-underline-offset:3px;margin-top:9px;font-size:9px;display:inline-block}.paper-footer{border:2px dashed var(--coral);color:var(--coral);border-radius:12px;justify-content:space-between;align-items:center;gap:16px;margin-top:24px;padding:20px;font-size:11px;display:flex}.paper-footer div{letter-spacing:.3em;font-size:21px}.paper-footer b{font-size:13px}.more-button{background:var(--blue-pale);align-items:center;gap:8px;margin:24px auto 0;display:flex}.more-button span{font-size:18px}.history-section{border-top:1px solid #e3decf;grid-template-columns:.8fr 1.2fr;gap:70px;width:min(1120px,100% - 40px);margin:auto;padding:75px 0;display:grid}.history-section>div>p:last-child{max-width:380px;color:var(--muted);font-size:12px;line-height:1.7}.history-list{gap:9px;display:grid}.history-list button{cursor:pointer;text-align:left;background:#ffffffb3;border:1px solid #d9d5ca;border-radius:12px;grid-template-columns:42px 1fr auto;align-items:center;gap:12px;padding:13px 14px;display:grid}.history-list button>span{background:var(--yellow-pale);border-radius:10px;place-items:center;width:39px;height:39px;display:grid}.history-list b,.history-list small{display:block}.history-list b{margin-bottom:3px;font-size:12px}.history-list small,.history-list time{color:var(--muted);font-size:9px}.empty-history{color:var(--muted);text-align:center;border:1px dashed #c8c4b9;border-radius:12px;padding:27px;font-size:11px}.ad-shell{background:#ffffff94;border:1px solid #ddd8ca;border-radius:12px;width:min(900px,100% - 40px);min-height:118px;margin:28px auto;padding:10px}.ad-label{color:#8c94a1;letter-spacing:.12em;text-align:center;margin-bottom:7px;font-size:8px;display:block}.ad-preview{min-height:80px;color:var(--muted);border:1px dashed #c8c4b9;border-radius:8px;align-content:center;place-items:center;gap:4px;font-size:11px;display:grid}.ad-preview small{color:#929baa;font-size:9px}.adsbygoogle{min-height:90px}.free-model-section{border:2px solid var(--ink);background:var(--yellow-pale);width:min(900px,100% - 40px);box-shadow:5px 6px 0 var(--ink);border-radius:18px;grid-template-columns:.9fr 1.1fr;align-items:center;gap:52px;margin:10px auto 42px;padding:34px;display:grid}.free-model-section h2{letter-spacing:-.05em;margin:0;font-size:clamp(24px,3.4vw,34px);line-height:1.25}.free-model-section>p{color:var(--muted);margin:0;font-size:12px;line-height:1.9}.content-home-section{width:min(900px,100% - 40px);margin:0 auto;padding:76px 0}.content-home-intro{position:relative}.content-home-intro:before{z-index:-1;content:"";background:#eef6ff;position:absolute;inset:15px -50vw 0;transform:skewY(-1.4deg)}.content-home-section .section-heading h2,.content-home-final-cta h2{letter-spacing:-.055em;margin:0;font-size:clamp(26px,4vw,38px)}.content-home-lead{max-width:780px;color:var(--muted);margin:0 0 30px;font-size:14px;line-height:2}.grade-guide-grid{grid-template-columns:repeat(2,1fr);gap:13px;display:grid}.grade-guide-card{color:var(--ink);background:#ffffffd1;border:1px solid #d9d5ca;border-radius:14px;grid-template-columns:50px 1fr;gap:15px;padding:20px;text-decoration:none;display:grid}.grade-guide-number{border:2px solid var(--ink);background:var(--yellow);width:48px;height:48px;box-shadow:3px 3px 0 var(--ink);border-radius:14px;place-items:center;font-size:21px;font-weight:900;display:grid}.grade-guide-card p{color:var(--blue-dark);margin:0 0 2px;font-size:10px;font-weight:850}.grade-guide-card h3{margin:0 0 7px;font-size:15px}.grade-guide-card div>span{color:var(--muted);font-size:11px;line-height:1.7;display:block}.content-home-cta{max-width:520px;color:var(--ink);margin:34px auto 0;text-decoration:none}.content-home-actions{justify-items:center;gap:15px;margin-top:34px;display:grid}.content-home-actions .content-home-cta{margin-top:0}.library-link-button{color:var(--blue-dark);text-underline-offset:4px;font-size:12px;font-weight:800}.sample-section{padding-top:90px}.sample-paper{padding:clamp(26px,6vw,52px)}.sample-review-mark{color:var(--muted);margin:0;font-size:10px}.sample-problem{border-bottom:1px dashed #cbd0d7;grid-template-columns:28px 1fr;gap:12px;padding:24px 8px;display:grid}.sample-problem small{color:var(--blue-dark);font-size:9px;font-weight:800}.sample-problem p{margin:7px 0 12px;font-size:13px;line-height:1.8}.sample-problem details summary{width:fit-content;color:var(--blue-dark);cursor:pointer;text-underline-offset:3px;font-size:11px;font-weight:750}.sample-problem .answer{margin-top:12px;line-height:1.7}.content-home-policy-copy p{color:var(--muted);margin:0 0 13px;font-size:12px;line-height:1.9}.content-home-policy-copy a{color:var(--blue-dark);text-underline-offset:3px;font-size:11px;font-weight:750}.content-home-final-cta{text-align:center;width:min(700px,100% - 40px);margin:0 auto;padding:48px 0 80px}.content-home-final-cta>p:not(.eyebrow){color:var(--muted);font-size:13px;line-height:1.9}.content-home-final-cta .eyebrow{text-align:center}.library-create-link{border:1.5px solid var(--ink);background:var(--yellow);color:var(--ink);border-radius:9px;padding:9px 13px;font-size:11px;font-weight:850;text-decoration:none}.library-hero{width:min(900px,100% - 40px);margin:0 auto;padding:74px 0 70px}.library-hero h1{letter-spacing:-.07em;max-width:760px;margin:0;font-size:clamp(42px,7vw,72px);line-height:1.08}.library-hero>p:last-child{max-width:700px;color:var(--muted);margin:25px 0 0;font-size:14px;line-height:2}.library-grade-list{width:min(900px,100% - 40px);margin:0 auto;padding-bottom:72px}.library-grade-section{border-top:1px solid #ded9cc;padding:40px 0;scroll-margin-top:20px}.library-grade-heading{align-items:center;gap:15px;margin-bottom:20px;display:flex}.library-grade-heading>span{border:2px solid var(--ink);background:var(--yellow);width:48px;height:48px;box-shadow:3px 3px 0 var(--ink);border-radius:14px;place-items:center;font-size:20px;font-weight:900;display:grid}.library-grade-heading p{color:var(--blue-dark);letter-spacing:.12em;margin:0 0 3px;font-size:9px;font-weight:900}.library-grade-heading h2{letter-spacing:-.04em;margin:0;font-size:26px}.library-subject-grid{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.library-subject-card{min-height:130px;color:var(--ink);background:#ffffffc7;border:1.5px solid #d3cfc3;border-radius:15px;grid-template-columns:44px 1fr auto;align-items:center;gap:14px;padding:20px;text-decoration:none;transition:transform .15s,box-shadow .15s;display:grid}.library-subject-card:hover{box-shadow:4px 5px 0 var(--ink);transform:translateY(-2px)}.library-subject-card>span{background:var(--blue-pale);width:42px;height:42px;color:var(--blue-dark);border-radius:11px;place-items:center;font-size:17px;font-weight:900;display:grid}.library-subject-card.subject-math>span{background:var(--coral-pale);color:#c94e3a}.library-subject-card.subject-social_studies>span{background:var(--green-pale);color:#287c59}.library-subject-card.subject-science>span{background:var(--yellow-pale);color:#a8730a}.library-subject-card h3{margin:0 0 6px;font-size:17px}.library-subject-card p{color:var(--muted);margin:0 0 7px;font-size:10px;line-height:1.6}.library-subject-card small{color:var(--blue-dark);font-size:9px;font-weight:750}.library-subject-card>b{color:var(--muted);font-size:18px}.library-note{border:2px solid var(--ink);background:var(--yellow-pale);width:min(900px,100% - 40px);box-shadow:5px 6px 0 var(--ink);border-radius:18px;margin:0 auto 80px;padding:36px}.library-note h2{letter-spacing:-.05em;margin:0 0 12px;font-size:clamp(24px,4vw,34px)}.library-note>p:not(.eyebrow){color:var(--muted);font-size:12px;line-height:1.9}.library-note a{color:var(--blue-dark);font-size:11px;font-weight:750}.library-breadcrumb{width:min(900px,100% - 40px);color:var(--muted);flex-wrap:wrap;gap:8px;margin:32px auto 0;font-size:10px;display:flex}.library-breadcrumb a{color:var(--blue-dark);text-underline-offset:3px}.guide-hero{width:min(900px,100% - 40px);margin:0 auto;padding:70px 0 62px}.guide-hero h1{letter-spacing:-.07em;margin:0;font-size:clamp(42px,7vw,70px)}.guide-hero>p:not(.eyebrow){max-width:760px;color:var(--muted);margin:24px 0;font-size:14px;line-height:2}.guide-facts{flex-wrap:wrap;gap:9px;display:flex}.guide-facts span{color:var(--muted);background:#ffffffb8;border:1px solid #d7d2c5;border-radius:999px;padding:8px 12px;font-size:10px}.guide-facts b{color:var(--blue-dark);margin-right:7px}.guide-content-section{border-top:1px solid #ded9cc;width:min(900px,100% - 40px);margin:0 auto;padding:66px 0}.guide-content-section .section-heading h2,.guide-parent-note h2,.guide-create-cta h2{letter-spacing:-.055em;margin:0;font-size:clamp(26px,4vw,38px)}.guide-unit-grid{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.guide-unit-card{background:#ffffffc2;border:1px solid #d8d4c8;border-radius:14px;padding:21px}.guide-unit-card>p{color:var(--blue-dark);letter-spacing:.09em;text-transform:uppercase;margin:0 0 5px;font-size:8px;font-weight:850}.guide-unit-card h3{margin:0 0 11px;font-size:15px}.guide-unit-card ul{color:var(--muted);margin:0;padding-left:18px;font-size:10px;line-height:1.8}.guide-unit-link{color:var(--ink);text-decoration:none;transition:transform .15s,box-shadow .15s}.guide-unit-link:hover{box-shadow:4px 5px 0 var(--ink);transform:translateY(-2px)}.guide-sample-paper{padding:clamp(26px,6vw,52px)}.guide-sample-problem{grid-template-columns:28px 1fr;gap:12px;padding:28px 8px 4px;display:grid}.guide-sample-problem p{margin:2px 0 14px;font-size:14px;line-height:1.9}.guide-sample-problem details summary{width:fit-content;color:var(--blue-dark);cursor:pointer;margin-top:17px;font-size:11px;font-weight:750}.guide-sample-choices{color:var(--muted);grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 24px;margin:10px 0 18px;padding-left:24px;font-size:11px;line-height:1.7;display:grid}.guide-parent-note{border:2px solid var(--ink);background:var(--yellow-pale);width:min(900px,100% - 40px);box-shadow:5px 6px 0 var(--ink);border-radius:18px;margin:0 auto 55px;padding:34px}.guide-parent-note>p:not(.eyebrow){color:var(--muted);font-size:12px;line-height:1.9}.guide-create-cta{text-align:center;width:min(700px,100% - 40px);margin:0 auto;padding:38px 0 80px}.guide-create-cta>p{color:var(--muted);font-size:12px;line-height:1.9}.editorial-review-banner{background:var(--yellow-pale);color:#715315;border:1px solid #d9bd77;border-radius:10px;align-items:center;gap:14px;width:min(900px,100% - 40px);margin:26px auto 0;padding:13px 16px;font-size:10px;line-height:1.6;display:flex}.editorial-review-banner b{white-space:nowrap;color:var(--ink);font-size:11px}.editorial-unit-hero{padding-top:55px}.editorial-detail-list{gap:10px;margin:0;padding:0;list-style:none;display:grid}.editorial-detail-list li{border-left:5px solid var(--blue);background:var(--blue-pale);color:var(--ink);border-radius:0 10px 10px 0;padding:17px 19px;font-size:12px;line-height:1.8}.editorial-prerequisites{background:#ffffffad;border:1px solid #d8d4c8;border-radius:12px;margin-top:24px;padding:20px}.editorial-prerequisites h3{margin:0 0 9px;font-size:13px}.editorial-prerequisites ul{color:var(--muted);margin:0;padding-left:18px;font-size:11px;line-height:1.8}.editorial-prerequisites a{color:var(--blue-dark)}.editorial-two-column{grid-template-columns:repeat(2,1fr);gap:13px;display:grid}.editorial-two-column section{background:#ffffffc2;border:1px solid #d8d4c8;border-radius:14px;padding:24px}.editorial-two-column section:last-child{background:var(--coral-pale)}.editorial-two-column h3{margin:0 0 12px;font-size:15px}.editorial-two-column ul{color:var(--muted);margin:0;padding-left:18px;font-size:11px;line-height:1.9}.editorial-source-note{border:2px solid var(--ink);background:var(--yellow-pale);width:min(900px,100% - 40px);box-shadow:5px 6px 0 var(--ink);border-radius:18px;margin:0 auto 55px;padding:34px}.editorial-source-note h2{letter-spacing:-.05em;margin:0 0 12px;font-size:clamp(24px,4vw,34px)}.editorial-source-note>p:not(.eyebrow),.editorial-source-note ul{color:var(--muted);font-size:11px;line-height:1.9}.editorial-source-note a{color:var(--blue-dark);margin:5px 12px 0 0;font-size:10px;font-weight:750;display:inline-block}.home-learning-card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;width:min(900px,100% - 40px);margin:0 auto 72px;display:grid}.home-learning-card{min-height:390px;color:var(--ink);background:#ffffffc7;border:1.5px solid #d3cfc3;border-radius:18px;flex-direction:column;padding:0 28px 28px;text-decoration:none;transition:transform .15s,box-shadow .15s;display:flex;overflow:hidden}.home-learning-card:hover{box-shadow:5px 6px 0 var(--ink);transform:translateY(-2px)}.home-learning-card>img{object-fit:cover;border-bottom:1px solid #d8d4c8;width:calc(100% + 56px);height:180px;margin:0 -28px 22px}.home-learning-card>p{background:var(--blue-pale);width:fit-content;color:var(--blue-dark);border-radius:999px;margin:0 0 14px;padding:6px 10px;font-size:10px;font-weight:900}.home-learning-card.subject-math>p{background:var(--coral-pale);color:#c94e3a}.home-learning-card.subject-social_studies>p{background:var(--green-pale);color:#287c59}.home-learning-card.subject-science>p{background:var(--yellow-pale);color:#8c620d}.home-learning-card h2{letter-spacing:-.045em;margin:0 0 13px;font-size:24px;line-height:1.35}.home-learning-card>span{color:var(--muted);font-size:12px;line-height:1.9}.home-learning-card>b{color:var(--blue-dark);margin-top:auto;padding-top:22px;font-size:11px}.home-learning-mini-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:26px;display:grid}.home-learning-mini-grid a{color:var(--ink);background:#ffffffc2;border:1px solid #d8d4c8;border-radius:12px;grid-template-columns:52px 1fr;align-items:center;gap:12px;padding:17px;font-size:11px;line-height:1.7;text-decoration:none;display:grid}.home-learning-mini-grid b{background:var(--blue-pale);height:38px;color:var(--blue-dark);border-radius:9px;place-items:center;display:grid}.home-learning-hero{padding-bottom:44px}.section-heading-illustrated{grid-template-columns:48px minmax(0,1fr) 112px;align-items:center;gap:16px;min-height:112px;display:grid}.section-heading-illustrated .section-clipart{object-fit:contain;width:112px;height:112px;display:block}.home-learning-thinking-steps li b{background:var(--blue);color:#fff;border-radius:50%;place-items:center;width:28px;height:28px;font-size:11px;display:grid}.home-learning-guide-page .guide-hero>p:not(.eyebrow){font-size:16px;line-height:1.95}.home-learning-introduction>p{max-width:780px;color:var(--muted);font-size:16px;line-height:2}.home-learning-principles{grid-template-columns:repeat(3,1fr);gap:12px;margin-top:30px;display:grid}.home-learning-principles section,.home-learning-grade-bands section,.home-learning-diagnosis-list section{background:#ffffffc2;border:1px solid #d8d4c8;border-radius:14px;padding:23px}.home-learning-principles h3,.home-learning-grade-bands h3,.home-learning-diagnosis-list h3{margin:0 0 11px;font-size:15px}.home-learning-principles p,.home-learning-grade-bands p{color:var(--muted);margin:0;font-size:14px;line-height:1.9}.home-learning-grade-bands{gap:12px;display:grid}.home-learning-grade-bands section{grid-template-columns:115px minmax(0,1fr) minmax(0,1fr);align-items:stretch;gap:12px;display:grid}.home-learning-grade-bands h3{color:var(--blue-dark);padding:15px 0 0}.home-learning-grade-bands section>div{background:var(--blue-pale);border-radius:10px;padding:16px}.home-learning-grade-bands section>.home-learning-home-practice{background:var(--yellow-pale)}.home-learning-grade-bands h4{color:var(--blue-dark);margin:0 0 8px;font-size:12px}.home-learning-grade-bands .home-learning-home-practice h4{color:#8c620d}.home-learning-source-card{width:100%;margin:0}.home-learning-source-card>p:not(.eyebrow),.home-learning-source-card ul{font-size:14px}.home-learning-create-section{padding-bottom:80px}.home-learning-create-card{width:min(700px,100%);padding:0}.home-learning-diagnosis-list{gap:12px;display:grid}.home-learning-diagnosis-list dl{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0;display:grid}.home-learning-diagnosis-list dl>div{background:var(--blue-pale);border-radius:10px;padding:15px}.home-learning-diagnosis-list dl>div:last-child{background:var(--yellow-pale)}.home-learning-diagnosis-list dt{color:var(--blue-dark);margin-bottom:7px;font-size:12px;font-weight:900}.home-learning-diagnosis-list dd{color:var(--muted);margin:0;font-size:14px;line-height:1.8}.home-learning-practice-flow{gap:10px;margin:0;padding:0;list-style:none;display:grid}.home-learning-practice-flow li{border-left:5px solid var(--blue);background:var(--blue-pale);border-radius:0 12px 12px 0;grid-template-columns:72px 1fr;gap:18px;padding:18px 21px;display:grid}.home-learning-practice-flow li>b{color:var(--blue-dark);font-size:14px}.home-learning-practice-flow h3{margin:0 0 6px;font-size:14px}.home-learning-practice-flow p{color:var(--muted);margin:0;font-size:14px;line-height:1.8}.home-learning-example-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.home-learning-example-list>section{background:#ffffffd1;border:1.5px solid #d3cfc3;border-radius:16px;padding:clamp(24px,4vw,34px)}.home-learning-example-list h3{margin:0 0 14px;font-size:20px}.home-learning-prompt{min-height:76px;color:var(--ink);font-size:15px;font-weight:700;line-height:1.9}.home-learning-thinking-label{color:var(--blue-dark);letter-spacing:.08em;margin:20px 0 10px;font-size:12px;font-weight:900}.home-learning-example-list .home-learning-thinking-steps{color:var(--muted);gap:8px;margin:0;padding:0;font-size:14px;line-height:1.8;list-style:none;display:grid}.home-learning-thinking-steps li{background:var(--blue-pale);border-radius:9px;grid-template-columns:28px 1fr;align-items:center;gap:10px;padding:10px;display:grid}.home-learning-answer{background:var(--yellow-pale);border-radius:10px;gap:6px;margin-top:18px;padding:15px;font-size:14px;line-height:1.7;display:grid}.home-learning-parent-prompt{color:var(--muted);margin:15px 0 0;font-size:13px;line-height:1.8}.home-learning-mastery-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:0;padding:0;list-style:none;display:grid}.home-learning-mastery-list li{background:#ffffffc2;border:1px solid #d8d4c8;border-radius:12px;padding:18px 18px 18px 47px;font-size:14px;line-height:1.8;position:relative}.home-learning-create-card>p{font-size:14px}.home-learning-mastery-list li:before{content:"✓";color:#287c59;font-size:16px;font-weight:900;position:absolute;top:17px;left:18px}footer{background:var(--ink);color:#fff;text-align:center;place-items:center;min-height:180px;padding:38px 20px;display:grid}footer .logo{color:#fff}footer p{color:#d6dce7;margin:8px 0 0;font-size:12px}footer small{color:#8f99aa;font-size:9px}.privacy-link,.data-source-link{color:#d6dce7;text-underline-offset:3px;font-size:10px}.legal-page{width:min(760px,100% - 40px);margin:auto;padding:40px 0 90px}.legal-page>.logo{margin-bottom:70px}.legal-page article{border:2px solid var(--ink);background:var(--paper);box-shadow:6px 7px 0 var(--ink);border-radius:18px;padding:clamp(26px,6vw,58px)}.legal-page h1{letter-spacing:-.06em;margin:0;font-size:clamp(34px,7vw,56px)}.legal-page h2{margin:36px 0 10px;font-size:17px}.legal-page p,.legal-list{color:var(--muted);font-size:13px;line-height:1.9}.legal-list li+li{margin-top:5px}.legal-nav{border-top:1px solid #ddd8ca;flex-wrap:wrap;gap:14px;margin-top:42px;padding-top:20px;font-size:12px;display:flex}.legal-updated{margin-top:10px;font-size:10px!important}.legal-page a{color:var(--blue-dark)}.privacy-settings{margin:16px 0 24px}.privacy-settings button{border:1px solid var(--ink);color:var(--ink);font:inherit;cursor:pointer;background:#fff;border-radius:8px;padding:10px 14px;font-size:12px;font-weight:700}.privacy-settings button:hover{background:var(--yellow-pale)}.privacy-settings button:focus-visible{outline:3px solid var(--blue);outline-offset:3px}.privacy-settings p{margin:8px 0 0;font-size:11px}.configuration-warning{background:var(--yellow-pale);border-radius:8px;padding:12px;color:#795716!important}@media (width<=760px){.site-header{height:66px}.header-note{display:none}.hero{grid-template-columns:1fr;gap:28px;padding:45px 0 70px}.hero h1{font-size:clamp(32px,10vw,62px)}.hero-doodle{min-height:280px}.service-overview{grid-template-columns:1fr}.doodle-sheet{right:8%}.pencil{right:0}.generator-section,.worksheet-section{width:min(100% - 28px,900px)}.generator-card{box-shadow:5px 6px 0 var(--ink)}.mode-switch,.form-row,.difficulty-switch{grid-template-columns:1fr}.subject-grid{grid-template-columns:1fr 1fr}.worksheet-heading{flex-wrap:wrap}.sheet-actions{width:100%;margin:4px 0 0}.sheet-actions button{flex:1}.paper-top{flex-direction:column;align-items:flex-start}.name-line{width:100%}.paper-footer{flex-direction:column;align-items:flex-start}.history-section{grid-template-columns:1fr;gap:25px;padding:60px 0}.free-model-section{grid-template-columns:1fr;gap:18px}.content-home-section{width:min(100% - 28px,900px)}.grade-guide-grid{grid-template-columns:1fr}.grade-guide-card{grid-template-columns:44px 1fr;padding:17px}.grade-guide-number{width:42px;height:42px}.library-subject-grid,.guide-unit-grid,.editorial-two-column,.home-learning-card-grid,.home-learning-example-list,.home-learning-mastery-list,.home-learning-mini-grid,.home-learning-principles,.home-learning-grade-bands section{grid-template-columns:1fr}.home-learning-grade-bands h3{padding-top:0}.home-learning-diagnosis-list dl{grid-template-columns:1fr}.section-heading-illustrated{grid-template-columns:44px minmax(0,1fr) 78px;gap:10px;min-height:88px}.section-heading-illustrated .section-clipart{width:78px;height:78px}.editorial-review-banner{flex-direction:column;align-items:flex-start;gap:3px}.library-hero,.library-grade-list,.guide-hero,.guide-content-section{width:min(100% - 28px,900px)}.library-subject-card{min-height:112px;padding:16px}.guide-sample-choices{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition:none!important}}@media print{body{background:#fff}.site-header,.hero,.generator-section,.worksheet-heading,.more-button,.history-section,.no-print,footer{display:none!important}.worksheet-section{width:100%;padding:0}.worksheet-paper{box-shadow:none;break-inside:avoid;border:0;padding:28px 40px}.problem-row{padding:11px 8px}}
