@layer theme{:root,:host{--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--default-font-family:"Inter Variable", sans-serif;--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;-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", 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optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.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}}:root{--primary:#5b57d9;--primary-hover:#4b47c5;--primary-soft:#eeedff;--background:#f7f7f9;--surface:#fff;--text:#20202a;--text-secondary:#5f5e6b;--border:#e7e7ec;--dark:#191820;--success:#247a55;--success-soft:#eaf6f0;--warning:#996515;--warning-soft:#fff5df;--radius-button:6px;--radius-card:10px;--radius-panel:12px;--shadow:0 8px 32px 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96px);margin-inline:auto}.section{padding-block:112px}.eyebrow{letter-spacing:.13em;color:var(--primary);text-transform:uppercase;font-size:11px;font-weight:650;line-height:1.6;display:block}.button{border-radius:var(--radius-button);border:1px solid #0000;justify-content:center;align-items:center;min-height:46px;padding:12px 20px;font-size:13px;font-weight:550;line-height:1.4;transition:background .15s,border-color .15s;display:inline-flex}.primary{background:var(--primary);color:#fff}.primary:hover{background:var(--primary-hover)}.secondary{background:var(--surface);border-color:var(--border)}.secondary:hover{background:var(--background);border-color:#bdbcc9}.text-link{min-height:44px;color:var(--primary);text-underline-offset:6px;align-items:center;font-size:14px;font-weight:550;-webkit-text-decoration:underline #cbc9f3;text-decoration:underline #cbc9f3;display:inline-flex}.text-link:hover{-webkit-text-decoration-color:var(--primary);-webkit-text-decoration-color:var(--primary);-webkit-text-decoration-color:var(--primary);text-decoration-color:var(--primary)}.skip-link{z-index:100;background:var(--surface);border:2px solid var(--primary);padding:12px 20px;position:fixed;top:12px;left:12px;transform:translateY(-160%)}.skip-link:focus{transform:none}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.muted{font-size:14px}.site-header{z-index:30;border-bottom:1px solid var(--border);background:#fffffff7;position:sticky;top:0}.header-inner{align-items:center;gap:36px;max-width:1440px;margin:auto;padding:18px 36px;display:flex}.brand{letter-spacing:-.065em;white-space:nowrap;align-items:center;gap:9px;font-size:25px;font-weight:700;line-height:1;display:inline-flex}.brand-mark{background:var(--primary);color:#fff;letter-spacing:-3px;border:1px solid #7f7af0;border-radius:8px;justify-content:center;align-items:center;width:29px;height:29px;font-size:25px;line-height:1;display:inline-flex}.brand-mark span{color:#c9c7ff;margin:4px 0 0 -1px;font-size:20px}.brand-dot{color:var(--primary)}.header-navigation{flex:1;justify-content:space-between;align-items:center;gap:20px;display:flex}.header-navigation nav{align-items:center;gap:20px;display:flex}.header-navigation nav a,.login-link{white-space:nowrap;align-items:center;min-height:44px;font-size:12px;display:inline-flex}.header-navigation nav a:hover,.login-link:hover{color:var(--primary)}.header-actions{align-items:center;gap:20px;display:flex}.header-actions .button{min-height:40px;padding:10px 15px;font-size:12px}.menu-toggle{display:none}.hero{padding-top:58px;padding-bottom:68px}.hero-top{justify-content:space-between;align-items:center;margin-bottom:32px;display:flex}.hero-edition{color:var(--text-secondary);font-size:11px}.hero-grid{grid-template-columns:1.16fr 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12px;display:flex}.mini-brand{background:var(--primary);color:#fff;letter-spacing:-3px;border:1px solid #7f7af0;border-radius:8px;justify-content:center;align-items:center;width:30px;height:30px;font-size:25px;font-weight:650;line-height:1;display:inline-flex}.mini-brand span{color:#c9c7ff;font-size:18px}.side-square{border:1px solid #74727f;border-radius:3px;width:15px;height:15px;display:block}.side-square.selected{background:#302e49;border-color:#aaa7ff;outline:10px solid #302e49}.side-avatar{color:#c7c5d0;background:#34313f;border-radius:50%;place-items:center;width:25px;height:25px;margin-top:auto;font-size:10px;display:grid}.product-workspace{padding:20px 30px 0}.preview-topline{color:var(--text-secondary);border-bottom:1px solid var(--border);justify-content:space-between;padding-bottom:17px;font-size:11px;display:flex}.crumb-separator{color:#9b99a8;margin:0 10px}.preview-heading{justify-content:space-between;align-items:center;padding:20px 0;display:flex}.preview-heading h2{letter-spacing:-.04em;margin-top:5px;font-size:22px}.preview-heading .eyebrow{font-size:9px}.preview-tag{border:1px solid var(--border);color:var(--text-secondary);border-radius:4px;padding:4px 8px;font-size:11px}.preview-tabs{border-bottom:1px solid #dbdbe3;gap:18px;display:flex}.preview-tabs button{color:var(--text-secondary);white-space:nowrap;background:0 0;border:0;min-height:44px;padding:9px 2px 12px;font-size:12px;position:relative}.preview-tabs button[aria-selected=true]{color:var(--primary);box-shadow:inset 0 -2px var(--primary)}.preview-panel{min-height:324px;padding-top:22px}.panel-heading{justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;display:flex}.panel-heading h3{letter-spacing:-.02em;font-size:15px}.panel-heading p{margin-top:5px;font-size:11px}.weight-total{color:var(--primary);background:var(--primary-soft);white-space:nowrap;border-radius:4px;padding:5px 9px;font-size:11px}.ra-sample{border:1px solid var(--border);background:#fff;border-radius:6px;overflow:hidden}.ra-sample-heading,.ra-other{align-items:center;gap:12px;padding:12px 16px;font-size:12px;display:flex}.ra-sample-heading{border-bottom:1px solid var(--border)}.ra-code{color:var(--primary);background:var(--primary-soft);border-radius:3px;padding:3px 6px;font-size:11px;font-weight:600}.sample-weight,.ra-other>span:last-child{font-variant-numeric:tabular-nums;margin-left:auto}.criterion{grid-template-columns:60px 1fr auto;align-items:center;gap:10px;padding:9px 16px 9px 28px;font-size:11px;display:grid}.criterion+.criterion{border-top:1px solid #f2f2f5}.criterion>span:first-child{color:var(--primary);font-weight:550}.status{white-space:nowrap;border-radius:4px;padding:3px 7px;font-size:10px;font-weight:500;line-height:1.5;display:inline-block}.published{color:var(--success);background:var(--success-soft)}.draft{color:var(--warning);background:var(--warning-soft)}.ra-other{border-bottom:1px solid var(--border);padding-block:10px}.preview-footer{color:var(--text-secondary);justify-content:space-between;gap:12px;padding:18px 0;font-size:10px;display:flex}.product-figure figcaption{color:var(--text-secondary);justify-content:center;align-items:center;gap:10px;margin-top:16px;font-size:10px;display:flex}.caption-rule{background:#b6b3c7;width:22px;height:1px}.sample-criteria{gap:6px;display:flex}.sample-criteria span{color:var(--primary);background:#f5f4ff;border:1px solid #dcdaf5;border-radius:4px;padding:3px 8px;font-size:11px}.table-scroll{border:1px solid var(--border);border-radius:6px;margin-top:14px;overflow-x:auto}.grade-table{border-collapse:collapse;white-space:nowrap;background:#fff;width:100%;font-size:12px}.grade-table th,.grade-table td{text-align:center;border-bottom:1px solid var(--border);padding:12px}.grade-table thead{color:var(--text-secondary);background:#f1f1f5;font-size:11px}.grade-table th:first-child{text-align:left;font-weight:500}.grade-table tbody tr:last-child>*{border:0}.grade-table td{font-variant-numeric:tabular-nums}.student-avatar{background:#eeedf5;border-radius:50%;place-items:center;width:23px;height:23px;margin-right:8px;font-size:10px;display:inline-grid}.panel-note{color:var(--text-secondary);margin-top:18px;font-size:11px;line-height:1.7}.progress-axis{color:var(--text-secondary);justify-content:space-between;margin:0 65px 10px 48px;font-size:10px;display:flex}.progress-row{border-bottom:1px solid var(--border);grid-template-columns:34px 1fr 48px;align-items:center;gap:10px 14px;padding:13px 0;font-size:12px;display:grid}.progress-row>strong{color:var(--primary);font-weight:550}.progress-row>b{text-align:right;font-variant-numeric:tabular-nums;font-weight:600}.progress-row small{color:var(--text-secondary);grid-column:2/-1;font-size:10px;line-height:1}.progress-track{background:#e8e8ef;border-radius:2px;height:7px;position:relative}.progress-track:after{content:"";border-left:1px dashed #aaa8b5;height:15px;position:absolute;top:-4px;left:50%}.progress-track>span{background:var(--success);border-radius:2px;height:100%;display:block}.progress-track.low>span{background:var(--warning)}.problem-section{background:var(--background);border-block:1px solid var(--border);padding:86px 0}.problem-grid{grid-template-columns:1.1fr 1fr;gap:100px;display:grid}.problem-grid h2{margin-top:20px;font-size:clamp(1.8rem,3vw,2.65rem);line-height:1.2}.problem-copy{padding-top:34px}.problem-copy p{font-size:15px;line-height:1.9}.problem-copy p+p{margin-top:20px}.editorial-note{border-left:2px solid var(--primary);margin-top:26px;padding-left:18px;font-size:14px}.editorial-note span,.editorial-note strong{display:block}.editorial-note span{color:var(--text-secondary)}.editorial-note strong{font-weight:550}.section-heading{margin-bottom:48px}.section-heading h2{margin-top:18px}.split-heading{justify-content:space-between;align-items:end;gap:50px;display:flex}.split-heading>p{max-width:310px;font-size:15px}.learning-flow{border-top:1px solid var(--border);border-bottom:1px solid var(--border);grid-template-columns:repeat(6,1fr);margin:0;padding:0;list-style:none;display:grid}.learning-flow li{padding:28px 16px 26px 0;position:relative}.learning-flow li+li{border-left:1px solid var(--border);padding-left:22px}.flow-number{color:var(--primary);margin-bottom:30px;font-size:11px;display:block}.learning-flow strong{letter-spacing:-.03em;font-size:18px;font-weight:550;display:block}.learning-flow li>span:last-child{color:var(--text-secondary);margin-top:7px;font-size:11px;display:block}.learning-flow li:not(:last-child):after{content:"→";color:#aaa7c1;z-index:1;background:#fff;line-height:1;position:absolute;top:28px;right:-8px}.workflow-details{grid-template-columns:repeat(3,1fr);gap:52px;margin-top:30px;display:grid}.workflow-details p{font-size:13px;line-height:1.85}.workflow-details b{color:var(--text);font-weight:550}.evaluation-section{background:var(--background)}.feature-grid{grid-template-columns:1fr 1fr;align-items:center;gap:100px;display:grid}.feature-copy h2{margin:18px 0 26px}.feature-copy>p{max-width:440px;font-size:15px;line-height:1.85}.feature-copy>p+p{margin-top:20px}.feature-list{margin:24px 0 20px;padding:0;list-style:none}.feature-list li{border-bottom:1px solid var(--border);padding:10px 0 10px 20px;font-size:13px;position:relative}.feature-list li:before{content:"";background:var(--primary);width:5px;height:5px;position:absolute;top:19px;left:0}.evidence-card{border-radius:var(--radius-card);box-shadow:var(--shadow);background:#fff;border:1px solid #dcdce5;padding:28px}.evidence-label{justify-content:space-between;align-items:center;margin-bottom:26px;display:flex}.evidence-label>span:first-child{letter-spacing:.12em;color:var(--primary);font-size:10px;font-weight:600}.evidence-card h3{font-size:22px}.evidence-card>p{margin-top:8px;margin-bottom:26px;font-size:12px}.evidence-line{border-top:1px solid var(--border);justify-content:space-between;align-items:center;gap:12px;padding:15px 0;font-size:12px;display:flex}.evidence-line>span{color:var(--text-secondary)}.evidence-line strong{font-size:13px;font-weight:550}.evidence-bottom{background:var(--background);color:var(--text-secondary);border-radius:6px;margin-top:12px;padding:12px;font-size:11px}.mini-check{color:var(--primary);margin-right:6px}.publication-note{border-left:2px solid var(--primary);gap:18px;margin:22px 0 0 24px;padding:3px 0 3px 20px;display:flex}.publication-index{color:var(--primary);white-space:nowrap;padding-top:3px;font-size:10px}.publication-note strong{font-size:12px;font-weight:550;display:block}.publication-note p{margin-top:4px;font-size:11px}.sample-caption{text-align:center;margin-top:17px;font-size:10px}.student-preview{border:1px solid var(--border);border-radius:var(--radius-panel);background:var(--background);overflow:hidden}.student-preview-top{background:var(--dark);color:#e0dfe8;align-items:center;gap:12px;padding:16px 24px;font-size:12px;display:flex}.student-preview-top .mini-brand{border-radius:6px;width:26px;height:26px;font-size:23px}.student-preview-body{padding:28px}.student-preview-body .eyebrow{font-size:9px}.student-preview-body h3{margin:12px 0 28px;font-size:23px;line-height:1.25}.student-module-line{justify-content:space-between;gap:12px;padding-bottom:10px;font-size:12px;display:flex}.student-preview>.sample-caption{border-top:1px solid var(--border);background:#fff;margin:0;padding:16px}.quiet-callout{border-top:1px solid var(--border);margin-top:26px;padding-top:20px}.quiet-callout strong{font-size:13px;font-weight:550}.quiet-callout p{margin-top:8px;font-size:13px;line-height:1.8}.ai-section{background:var(--dark);color:#f7f7fb;padding:88px 0}.ai-grid{grid-template-columns:1fr 1fr;align-items:start;gap:100px;display:grid}.ai-section .eyebrow{color:#aaa7ff}.ai-section h2{margin-top:25px;font-size:clamp(2.5rem,4.5vw,4rem);line-height:1.13}.ai-section h2 span{color:#aaa7ff}.ai-section p{color:#c0bfca;font-size:15px;line-height:1.9}.ai-lines{margin-top:24px}.ai-lines span{border-bottom:1px solid #383640;padding:13px 0;font-size:13px;display:block}.ai-section .ai-disclaimer{color:#aaa8b9;margin-top:20px;font-size:11px;line-height:1.8}.import-section{grid-template-columns:.3fr 1.2fr .8fr;align-items:center;gap:60px;display:grid}.import-index{letter-spacing:-.065em;color:#cbc9da;border-left:2px solid var(--primary);padding-left:20px;font-size:56px;font-weight:500;line-height:1.1}.import-index span{color:var(--primary);font-size:38px;line-height:1.3;display:block}.import-section h2{margin:15px 0 22px;font-size:clamp(1.8rem,3vw,2.65rem)}.import-section p{font-size:14px;line-height:1.85}.import-section 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