/*! tailwindcss v4.3.3 | MIT License | https://tailwindcss.com */@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,::backdrop,:after,:before{--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-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-outline-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:host,:root{--font-mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4,0,.2,1);--default-font-family:"Segoe UI",Arial,sans-serif;--default-mono-font-family:var(--font-mono)}}@layer base{*,::backdrop,:after,:before{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}:host,html{-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,pre,samp{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}menu,ol,ul{list-style:none}audio,canvas,embed,iframe,img,object,svg,video{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,optgroup,select,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,::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-millisecond-field,::-webkit-datetime-edit-second-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,::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.collapse{visibility:collapse}.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden}.absolute,.sr-only{position:absolute}.fixed{position:fixed}.relative{position:relative}.static{position:static}.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}.grid{display:grid}.hidden{display:none}.table{display:table}.shrink{flex-shrink:1}.grow{flex-grow:1}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.truncate{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.rounded{border-radius:.25rem}.border{border-style:var(--tw-border-style);border-width:1px}.lowercase{text-transform:lowercase}.shadow{--tw-shadow:0 1px 3px 0 var(--tw-shadow-color,#0000001a),0 1px 2px -1px var(--tw-shadow-color,#0000001a)}.ring,.shadow{box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}.ring{--tw-ring-shadow:var(--tw-ring-inset,) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color,currentcolor)}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.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))}}.account-page{max-width:900px}.auth-card{max-width:480px;margin:24px auto;padding:30px}.auth-card h1{font-size:29px}.account-section p,.auth-card p{overflow-wrap:anywhere;margin:12px 0}.account-section form,.auth-card form{gap:16px;max-width:500px;margin:20px 0;display:grid}.account-section label,.auth-card label{gap:7px;font-weight:600;display:grid}.account-section input:not([type=checkbox]),.auth-card input{border:1px solid var(--border);background:var(--bg);width:100%;min-width:0;color:var(--ink);border-radius:7px;padding:11px 12px}.auth-card small{color:var(--muted);font-weight:400}.google-button{width:100%}.auth-links{color:var(--teal);flex-wrap:wrap;gap:14px;margin:24px 0;display:flex}.account-notice{background:var(--teal-light);border-radius:8px;margin:16px 0;padding:14px}.form-error{color:#a53529;background:#fff1ed;border-radius:7px;padding:12px}[data-theme=dark] .form-error{color:#ffc5b8;background:#462b27}.account-section{min-width:0;margin:22px 0;padding:24px}.account-section .flex-actions{flex-wrap:wrap}.checkbox-label{align-items:flex-start;gap:12px;margin:16px 0;display:flex!important}.checkbox-label input{margin-top:5px}.sync-status{color:var(--muted);flex-wrap:wrap;align-items:center;gap:10px;font-size:12px;display:inline-flex}.account-section p a,.auth-card p a,.sync-status a{color:var(--teal);text-underline-offset:3px;text-decoration:underline}.account-entry{color:var(--teal);white-space:nowrap;padding:8px;font-size:12px;font-weight:600}.account-menu{position:relative}.account-menu summary{cursor:pointer;list-style:none}.account-menu summary::-webkit-details-marker{display:none}.account-menu-panel{z-index:45;gap:13px;width:235px;padding:18px;display:grid;position:absolute;top:45px;right:0;box-shadow:0 12px 30px #0002}.account-menu-panel a{color:var(--teal)}.account-menu-panel small{color:var(--muted)}.account-message{background:var(--teal-light);border:1px solid var(--border);border-radius:8px;margin-top:20px;padding:16px}.sync-conflict{border-top:1px solid var(--border);margin-top:22px;padding-top:18px}.conflict-versions{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:15px 0;display:grid}.conflict-versions pre{white-space:pre-wrap;overflow-wrap:anywhere;background:var(--bg);max-height:250px;font:inherit;padding:12px;overflow:auto}.progress-course-grid,.progress-stat-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:25px 0;display:grid}.progress-course,.progress-stat-grid section{min-width:0;padding:22px}.progress-stat-grid strong{color:var(--teal);font-size:28px;display:block}.progress-stat-grid span{color:var(--muted)}.progress-course p{margin:14px 0}.progress-course progress{appearance:none;background:var(--border);width:100%;height:6px;accent-color:var(--teal);border:0;border-radius:20px;overflow:hidden}.progress-course progress::-webkit-progress-bar{background:var(--border);border-radius:20px}.progress-course progress::-webkit-progress-value{background:var(--teal);border-radius:20px}.progress-course progress::-moz-progress-bar{background:var(--teal);border-radius:20px}.progress-list{gap:12px;padding-left:20px;display:grid}.history-table-wrap{overflow:auto}.history-table-wrap table{border-collapse:collapse;text-align:left;width:100%;min-width:500px}.history-table-wrap td,.history-table-wrap th{border-bottom:1px solid var(--border);padding:12px}.privacy-document{max-width:800px}.privacy-document p,.privacy-document ul{margin:16px 0}.study-materials-toggle{cursor:pointer;align-items:center;gap:12px;padding:16px 20px;list-style:none;display:flex}.study-materials-toggle::-webkit-details-marker{display:none}.study-materials-toggle::marker{content:""}.study-materials-toggle>svg{color:var(--teal)}.materials-heading{flex-wrap:wrap;flex:1;align-items:baseline;gap:5px 14px;min-width:0;display:flex}.materials-heading strong{font-size:14px;font-weight:600}.materials-heading small{color:var(--muted);font-size:12px}.study-materials[open]>.study-materials-toggle{border-bottom:1px solid var(--border)}.study-materials[open]>.study-materials-toggle>.materials-chevron{transform:rotate(180deg)}@media (max-width:1000px){.progress-course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:600px){.auth-card{margin:8px 0;padding:22px}.account-section{padding:18px}.conflict-versions,.progress-course-grid,.progress-stat-grid{grid-template-columns:1fr}.account-section .button{white-space:normal}.account-page h1{font-size:27px}}:root{--bg:#f7f8fa;--surface:#fff;--surface-alt:#f5f7f7;--ink:#243336;--muted:#657377;--border:#e6eaeb;--teal:#267668;--teal-light:#edf5f1;--hero:#174b43;--sidebar:232px;color-scheme:light}:root[data-theme=dark]{--bg:#101b1d;--surface:#192629;--surface-alt:#1e2d30;--ink:#e3eeeb;--muted:#a2b3b3;--border:#304044;--teal:#87cbb6;--teal-light:#263f39;--hero:#163e38;color-scheme:dark}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font-family:Segoe UI,Arial,sans-serif;font-size:14px;line-height:1.6}button,input,textarea{font:inherit}a,button,input,summary,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}a{text-decoration:none}a,button{color:inherit;touch-action:manipulation}button{background:0 0;border:0}svg{flex-shrink:0}[tabindex]:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,textarea:focus-visible{outline-offset:4px;outline:3px solid #55a997}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.3}h1{letter-spacing:-1.1px;margin-top:10px;font-size:32px}h1,h2{font-weight:650}h2{letter-spacing:-.4px;font-size:19px}h3{letter-spacing:-.25px;font-size:16px;font-weight:650}.muted{color:var(--muted)}.small{font-size:12px}.text-teal{color:var(--teal)}.eyebrow{letter-spacing:1.7px;align-items:center;gap:7px;font-weight:650;display:flex}.eyebrow,.tiny-label{color:var(--muted);font-size:10px}.tiny-label{letter-spacing:1px;text-transform:uppercase;font-weight:600}.green-dot{background:#5c9b7d;border-radius:100%;width:6px;height:6px;display:inline-block}.panel{background:var(--surface);border:1px solid var(--border);border-radius:12px}.button{white-space:nowrap;border-radius:7px;justify-content:center;align-items:center;gap:9px;padding:11px 17px;font-size:12px;font-weight:600;line-height:1.5;transition:background .18s,transform .18s;display:inline-flex}.button:hover{transform:translateY(-1px)}.primary{background:var(--teal);color:var(--surface);border:1px solid var(--teal)}.primary:hover{filter:brightness(1.1)}.secondary{background:var(--surface);border:1px solid var(--border)}.secondary:hover{background:var(--surface-alt)}.soft-teal{background:var(--teal-light);color:var(--teal);border:1px solid var(--teal)}.text-button{color:var(--teal);align-items:center;gap:7px;font-size:12px;font-weight:600;display:inline-flex}.text-button:hover{text-underline-offset:4px;text-decoration:underline}.icon-button{width:34px;height:34px;color:var(--muted);border-radius:7px;justify-content:center;align-items:center;display:inline-flex}.icon-button:hover{background:var(--surface-alt);color:var(--ink)}.small-icon{width:26px;height:26px}.inline-heading{align-items:center;gap:10px;display:flex}.section-heading{justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;display:flex}.page-description{color:var(--muted);margin-top:9px;font-size:13px}.skip-link{background:var(--surface);z-index:100;padding:12px;position:fixed;top:-60px;left:20px}.skip-link:focus{top:10px}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.sidebar{width:var(--sidebar);background:var(--surface);border-right:1px solid var(--border);z-index:40;flex-direction:column;padding:30px 18px 0;display:flex;position:fixed;inset:0 auto 0 0;overflow-y:auto}.brand{letter-spacing:-1.4px;align-items:center;gap:9px;width:max-content;padding-left:12px;font-size:29px;font-weight:750;line-height:1.2;display:flex}.brand-mark{background:var(--teal);width:35px;height:35px;color:var(--surface);border-radius:10px;place-items:center;display:grid}.brand-hub{font-weight:500}.brand-dot{color:var(--teal)}.workspace-label{color:var(--muted);letter-spacing:1.5px;padding:42px 14px 16px;font-size:9px;font-weight:650}.main-nav{flex-direction:column;gap:6px;display:flex}.nav-link{color:var(--muted);border-radius:7px;align-items:center;gap:12px;padding:12px 14px;font-size:12px;font-weight:500;display:flex}.nav-link:hover{background:var(--surface-alt)}.nav-link.active{background:var(--teal-light);color:var(--teal);font-weight:650}.active-dot{background:var(--teal);border-radius:50%;width:5px;height:5px;margin-left:auto}.sidebar-section-title{letter-spacing:1.2px;color:var(--muted);justify-content:space-between;align-items:center;margin:31px 10px 10px 14px;font-size:9px;font-weight:650;display:flex}.course-nav{flex-direction:column;display:flex}.course-nav a{color:var(--muted);border-radius:7px;align-items:center;gap:11px;padding:10px 14px;font-size:12px;display:flex}.course-nav a.current,.course-nav a:hover{background:var(--surface-alt);color:var(--ink)}.course-dot{background:#74ac98;border-radius:2px;width:7px;height:7px}.course-dot.violet{background:#a295c1}.course-dot.peach{background:#d6a07d}.course-dot.blue{background:#7cabc7}.course-dot.rose{background:#c68e9e}.course-dot.amber{background:#c6b26c}.sidebar-bottom{margin-top:auto;padding-top:50px}.sidebar-note{border:1px solid var(--border);background:linear-gradient(140deg,var(--teal-light),var(--surface));border-radius:10px;margin:0 8px 25px;padding:17px 14px}.sidebar-note .tiny-label{color:var(--teal);letter-spacing:.8px;align-items:center;gap:6px;font-size:8px;display:flex}.sidebar-note p{margin:11px 0 12px;font-size:13px;font-weight:500;line-height:1.7}.sidebar-note a{color:var(--teal);gap:8px;font-size:10px}.local-profile,.sidebar-note a{align-items:center;display:flex}.local-profile{border-top:1px solid var(--border);gap:10px;padding:20px 7px}.avatar{color:#6e6556;background:#eae6df;border-radius:50%;flex-shrink:0;place-items:center;width:33px;height:33px;font-size:12px;font-weight:650;display:grid}.local-profile small,.local-profile strong{display:block}.local-profile strong{font-size:11px;font-weight:600}.local-profile small{color:var(--muted);margin-top:2px;font-size:9px}.online-dot{background:#79a58f;border-radius:50%;width:6px;height:6px;margin-left:auto}.app-body{margin-left:var(--sidebar);flex-direction:column;min-height:100vh;display:flex}.topbar{border-bottom:1px solid var(--border);background:var(--surface);justify-content:space-between;height:78px;padding:0 40px}.header-actions,.header-left,.topbar{align-items:center;gap:18px;display:flex}.breadcrumb-top{color:var(--muted);align-items:center;gap:12px;font-size:11px;display:flex}.breadcrumb-top strong{color:var(--ink);font-weight:500}.search-trigger{color:var(--muted);border:1px solid var(--border);text-align:left;background:var(--bg);border-radius:7px;gap:9px;width:245px;padding:8px 10px;font-size:11px}.search-trigger,kbd{align-items:center;display:flex}kbd{border:1px solid var(--border);background:var(--surface);border-radius:3px;gap:3px;margin-left:auto;padding:0 4px;font-family:inherit;font-size:9px}.header-divider{background:var(--border);width:1px;height:21px}.header-actions{gap:14px}.header-avatar{width:30px;height:30px}.mobile-menu,.sidebar-close,.sidebar-scrim{display:none}.main-content{flex:1;min-width:0}.page{max-width:1500px;margin:auto;padding:36px 40px 32px}.app-footer{color:var(--muted);border-top:1px solid var(--border);justify-content:space-between;gap:14px;margin:14px 40px 0;padding:22px 0;font-size:10px;display:flex}.app-footer span span{margin:0 7px}.storage-warning{color:#674817;background:#fff0d6;padding:10px 40px;font-size:12px}.page-title-row{justify-content:space-between;align-items:center;gap:15px;margin-bottom:28px;display:flex}.prototype-pill{border:1px solid var(--border);background:var(--surface);letter-spacing:1px;color:var(--muted);border-radius:5px;align-items:center;gap:6px;padding:6px 9px;font-size:8px;display:flex}.prototype-pill>span{background:#afbaac;border-radius:50%;width:4px;height:4px}.welcome-banner{background:var(--hero);color:#f6faf3;border-radius:13px;justify-content:space-between;min-height:288px;padding:30px 35px;display:flex;position:relative;overflow:hidden}.welcome-copy{z-index:2}.hero-eyebrow{letter-spacing:1.9px;color:#b6cdc3;align-items:center;gap:7px;font-size:8px;font-weight:500;display:flex}.hero-eyebrow>span{background:#d7e8b6;border-radius:50%;width:5px;height:5px}.welcome-copy h2{letter-spacing:-1.1px;margin-top:17px;font-size:37px;font-weight:500;line-height:1.17}.welcome-copy p{color:#bdd1c8;margin-top:13px;font-size:11px;line-height:1.8}.hero-button{color:#254c40;background:#e8edda;border:1px solid #e8edda;margin-top:23px;padding:10px 14px;font-size:10px}.hero-art-wrap{color:#acc9b6;align-self:center;width:43%;max-width:405px;margin:-20px -2px -15px 20px;position:relative}.orbit-art{width:100%;display:block}.floating-label{background:#ffffff08;border:1px solid #a9cfb63b;border-radius:5px;align-items:center;gap:7px;padding:7px 11px;font-size:8px;display:flex;position:absolute;top:11px;right:4px;transform:rotate(5deg)}.art-caption{letter-spacing:2.8px;text-align:center;color:#8aafa0;margin-top:-9px;font-size:7px;display:block}.courses-section{margin-top:32px}.count-badge{border:1px solid var(--border);min-width:21px;height:20px;color:var(--muted);background:var(--surface);border-radius:5px;place-items:center;font-size:10px;display:inline-grid}.course-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:19px;display:grid}.course-card{border:1px solid var(--border);background:var(--surface);border-radius:10px;transition:transform .18s,box-shadow .18s;overflow:hidden}.course-card:hover{transform:translateY(-3px);box-shadow:0 7px 25px #17372e0a}.course-card-art{justify-content:space-between;align-items:center;height:107px;padding:24px;display:flex;position:relative;overflow:hidden}.teal{--course-bg:#e6f0e9;--course-fg:#477c67}.violet{--course-bg:#eeeaf5;--course-fg:#8a78b0}.peach{--course-bg:#f7ede4;--course-fg:#b48c68}.blue{--course-bg:#e6eef7;--course-fg:#7197b9}.rose{--course-bg:#f5e8ec;--course-fg:#b38090}.amber{--course-bg:#f4f0db;--course-fg:#a59551}.course-card-art,.course-icon{background:var(--course-bg);color:var(--course-fg)}.course-icon{width:42px;height:42px;border-radius:10px;flex-shrink:0;place-items:center;display:inline-grid}.course-card-art>.course-icon{z-index:1;background:#ffffff70;border-radius:16px;width:60px;height:60px}.subject-category{color:#59665d;z-index:1;background:#ffffff85;border:1px solid #ffffffa0;border-radius:4px;padding:2px 7px;font-size:8px;position:absolute;top:16px;right:17px}.card-art-lines{opacity:.22;width:140px;height:140px;position:absolute;top:14px;right:15px;transform:rotate(-30deg)}.card-art-lines i{border:1px solid var(--course-fg);border-radius:50%;width:125px;height:68px;position:absolute;transform:rotate(0)}.card-art-lines i:nth-child(2){transform:rotate(60deg)}.card-art-lines i:nth-child(3){transform:rotate(120deg)}.violet .card-art-lines{top:12px;right:-10px;transform:rotate(-40deg)}.violet .card-art-lines i{border-radius:70% 0;width:90px;height:90px}.peach .card-art-lines{transform:rotate(-20deg)}.peach .card-art-lines i{border-radius:0;width:95px;height:95px}.course-card-content{padding:19px 19px 17px}.course-title-row{justify-content:space-between;align-items:center;display:flex}.course-title-row h3{font-size:16px}.course-title-row svg{color:var(--muted)}.course-card-content>p{color:var(--muted);max-width:240px;min-height:38px;margin-top:9px;font-size:11px;line-height:1.7}.course-meta{justify-content:space-between;align-items:center;gap:4px;margin-top:18px;font-size:9px;display:flex}.course-meta>span:first-child{color:var(--muted);align-items:center;gap:5px;display:flex}.available-label{color:var(--teal)}.progress-track{background:var(--surface-alt);border-radius:5px;height:4px;margin:11px 0 6px;overflow:hidden}.progress-track>span{background:var(--teal);height:100%;transition:width .3s;display:block}.course-card-content>.small{font-size:9px}.dashboard-lower{grid-template-columns:1.6fr 1fr;gap:23px;margin-top:32px;display:grid}.dashboard-lower .section-heading{margin-bottom:18px}.dashboard-lower .section-heading>.small{letter-spacing:.9px;font-size:8px}.start-lesson{align-items:center;gap:18px;min-height:158px;padding:20px;display:flex}.start-lesson:hover .circle-arrow{background:var(--teal);color:var(--surface)}.lesson-thumbnail{color:#5a8770;background:#eaf0e8;border-radius:7px;flex-shrink:0;width:115px;height:107px;display:block;position:relative;overflow:hidden}.lesson-thumbnail .orbit-art{width:156px;max-width:none;position:absolute;top:-4px;left:-21px}.mini-play{color:#416c55;background:#ffffffeb;border-radius:50%;place-items:center;width:28px;height:28px;display:grid;position:absolute;bottom:7px;left:7px}.start-lesson-copy>.tiny-label{letter-spacing:.8px;font-size:8px}.start-lesson-copy>.tiny-label>span{color:#b2b9b8;margin:0 3px}.start-lesson-copy h3{margin-top:9px;font-size:14px;line-height:1.5}.lesson-details{color:var(--muted);align-items:center;gap:12px;margin-top:10px;font-size:9px;display:flex}.lesson-details>span{align-items:center;gap:5px;display:flex}.circle-arrow{background:var(--teal-light);width:30px;height:30px;color:var(--teal);border-radius:50%;flex-shrink:0;place-items:center;margin-left:auto;transition:background .18s;display:grid}.session-card{align-self:end;padding:20px 22px 16px}.session-card-title{align-items:center;gap:9px;display:flex}.session-card-title h3{font-size:13px}.icon-tile{background:var(--teal-light);color:var(--teal);border-radius:8px;flex-shrink:0;place-items:center;width:33px;height:33px;display:inline-grid}.session-card>p{color:var(--muted);margin:8px 0 12px;font-size:10px;line-height:1.7}.session-stats{gap:25px;display:flex}.session-stats>div{flex:1}.session-stats strong{letter-spacing:-1px;font-size:23px;font-weight:500;line-height:1.2;display:block}.session-stats span{white-space:nowrap;gap:4px;margin-top:5px}.session-footnote,.session-stats span{color:var(--muted);align-items:center;font-size:8px;display:flex}.session-footnote{border-top:1px solid var(--border);gap:5px;margin-top:13px;padding-top:10px}.dashboard-tip{border:1px solid var(--border);background:var(--surface);border-radius:9px;align-items:center;gap:13px;margin-top:27px;padding:15px 18px;display:flex}.dashboard-tip p,.tip-icon{color:var(--muted)}.dashboard-tip p{font-size:10px}.dashboard-tip strong{color:var(--ink);margin-right:5px;font-weight:600}.dashboard-tip>svg{color:var(--muted);margin-left:auto}.dialog{color:var(--ink);border:1px solid var(--border);background:var(--surface);border-radius:15px;width:540px;max-width:calc(100% - 28px);max-height:90dvh;margin:auto;padding:26px;overflow-y:auto;box-shadow:0 24px 100px #0003}.dialog::backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0e252a80}.dialog-header{justify-content:space-between;align-items:center;gap:15px;display:flex}.dialog-header h2{font-size:23px}.dialog-intro{margin:5px 0 22px;font-size:12px}.picker-list{flex-direction:column;gap:9px;display:flex}.picker-row{border:1px solid var(--border);text-align:left;background:var(--surface);border-radius:9px;align-items:center;gap:13px;width:100%;padding:11px 13px;display:flex}.picker-row.selected{border-color:var(--teal);background:var(--teal-light)}.picker-row small,.picker-row strong{display:block}.picker-row strong{font-size:13px;font-weight:600}.picker-row small{color:var(--muted);margin-top:3px;font-size:10px}.picker-check{border:1px solid var(--border);border-radius:5px;flex-shrink:0;place-items:center;width:24px;height:24px;margin-left:auto;display:grid}.selected .picker-check{color:var(--surface);background:var(--teal);border-color:var(--teal)}.dialog-footer{justify-content:space-between;margin-top:23px}.dialog-footer,.search-input{align-items:center;display:flex}.search-input{border:1px solid var(--border);background:var(--bg);color:var(--muted);border-radius:7px;gap:10px;margin:20px 0 10px;padding:12px}.search-input input{width:100%;color:var(--ink);background:0 0;border:0;outline:0;font-size:13px}.search-results{max-height:55vh;overflow:auto}.search-results>a{border-bottom:1px solid var(--border);align-items:center;gap:13px;padding:12px 5px;display:flex}.search-results>a:hover{background:var(--surface-alt)}.search-results>a>svg:last-child{margin-left:auto}.search-results small,.search-results strong{display:block}.search-results strong{font-size:12px;font-weight:600}.search-results small{color:var(--muted);margin-top:3px;font-size:10px}.empty-search{color:var(--muted);padding:24px 0;font-size:13px}.breadcrumbs{color:var(--muted);flex-wrap:wrap;align-items:center;gap:9px;margin-bottom:27px;font-size:11px;display:flex}.breadcrumbs a:hover{color:var(--teal)}.breadcrumbs>span{color:var(--ink)}.course-page-heading{align-items:center;gap:19px;margin-bottom:36px;display:flex}.course-page-heading>.course-icon{border-radius:15px;width:65px;height:65px}.course-page-heading h1{margin-top:5px}.course-page-heading p{margin-top:7px;font-size:12px}.course-page-heading>.button{margin-left:auto}.outline-layout{grid-template-columns:minmax(0,1fr) 265px;gap:26px;display:grid}.units-list{flex-direction:column;gap:13px;display:flex}.unit{overflow:hidden}.unit>summary{cursor:pointer;align-items:center;gap:14px;padding:20px;list-style:none;display:flex}.unit>summary::-webkit-details-marker{display:none}.unit>summary>.unit-number{background:var(--course-bg);width:38px;height:38px;color:var(--course-fg);border-radius:8px;flex-shrink:0;place-items:center;font-size:14px;font-weight:600;display:grid}.unit summary .tiny-label{font-size:8px;display:block}.unit summary strong{margin-top:3px;font-size:13px;font-weight:600;display:block}.unit-topic-count{color:var(--muted);white-space:nowrap;margin-left:auto;font-size:10px}.unit summary>svg{color:var(--muted);transition:transform .2s}.unit:not([open]) summary>svg{transform:rotate(-90deg)}.topic-list{border-top:1px solid var(--border);padding:4px 20px}.topic-row{border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:15px 0;font-size:11px;display:flex}.topic-row:last-child{border:0}.topic-number{color:var(--muted);min-width:21px;font-size:10px}.topic-row>span:nth-child(2){flex:1}.topic-row>svg:last-child{color:var(--muted)}.topic-row.ready{color:var(--teal);font-weight:600}.topic-row:hover{background:var(--surface-alt)}.topic-status{white-space:nowrap;align-items:center;gap:5px;font-size:9px;display:flex}.planned-label{color:var(--muted);white-space:nowrap;background:var(--surface-alt);border-radius:4px;padding:3px 6px;font-size:8px}.outline-aside{padding-top:45px}.outline-info{padding:23px}.outline-info h3{margin-top:20px;font-size:17px}.outline-info>p{color:var(--muted);margin-top:12px;font-size:12px;line-height:1.8}.outline-info hr{border:0;border-top:1px solid var(--border);margin:21px 0}.outline-info>strong{color:var(--teal);font-size:13px;font-weight:600}.outline-info .button{width:100%;margin-top:22px;padding:11px;font-size:11px}.outline-disclaimer{color:var(--muted);margin-top:22px;font-size:11px;line-height:1.8}.empty-state{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:18px;margin-top:30px;padding:65px 25px;display:flex}.empty-state>svg{color:var(--teal)}.empty-state h2{font-size:23px}.empty-state p{color:var(--muted);max-width:430px;font-size:13px}.empty-state h1{max-width:650px}.flex-actions{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.planned-topic{margin:45px auto}.badge{letter-spacing:.7px;border:1px solid var(--border);background:var(--surface-alt);width:max-content;color:var(--muted);border-radius:4px;padding:4px 7px;font-size:8px;font-weight:650;display:inline-block}.workspace-page{padding-top:25px}.workspace-page .breadcrumbs{margin-bottom:22px}.workspace-heading{justify-content:space-between;align-items:center;gap:24px;margin-bottom:25px;display:flex}.workspace-heading .eyebrow{letter-spacing:1.1px;font-size:8px}.workspace-heading h1{max-width:650px;margin-top:9px;font-size:27px}.workspace-heading .page-description{font-size:12px}.complete-button{align-self:flex-start;margin-top:22px;padding:9px 12px;font-size:10px}.is-complete{color:var(--teal);background:var(--teal-light);border:1px solid var(--teal)}.workspace-grid{grid-template-columns:minmax(0,1fr) 270px;align-items:start;gap:24px;display:grid}.lesson-main{min-width:0}.video-card{overflow:hidden}.video-stage{aspect-ratio:16/9;background:#102d29;position:relative}.video-stage iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.video-poster{color:#e6efdc;background:#194e45;flex-direction:column;padding:22px 27px;display:flex;position:absolute;inset:0;overflow:hidden}.poster-top{color:#c0d2c2;letter-spacing:1.5px;align-items:center;gap:8px;font-size:8px;display:flex}.poster-top>span{margin-left:auto;font-size:7px}.poster-content{flex:1;justify-content:space-between;align-items:center;gap:10px;display:flex}.poster-content h2{letter-spacing:-1.2px;margin-top:13px;font-size:clamp(24px,2.8vw,42px);font-weight:500;line-height:1.15}.poster-content .hero-eyebrow{letter-spacing:1.8px;font-size:6px}.poster-subtitle{color:#a7c5b5;margin-top:13px;font-size:8px;display:block}.poster-content .orbit-art{color:#b1c9b1;width:49%;margin-right:-18px}.video-play{color:#1e5748;z-index:2;background:#e5edd9f2;border:5px solid #ffffff25;border-radius:50%;place-items:center;width:59px;height:59px;padding-left:4px;transition:box-shadow .2s;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 10px #f2f7e812}.video-play:hover{box-shadow:0 0 0 15px #f2f7e825}.poster-bottom{color:#9bbcaf;border-top:1px solid #ffffff1c;justify-content:space-between;gap:10px;padding-top:12px;font-size:7px;display:flex}.poster-bottom>span{letter-spacing:1.7px;font-size:6px}.video-info{justify-content:space-between;align-items:center;gap:12px;padding:17px 20px;display:flex}.video-info h2{margin-bottom:4px;font-size:15px}.video-info .small{font-size:9px}.video-info .small>span{margin:0 4px}.video-info .text-button{font-size:9px}.video-fallback{color:var(--muted);align-items:center;gap:6px;margin:10px 2px 0;font-size:9px;display:flex}.lesson-toolbar{justify-content:space-between;align-items:center;gap:10px;padding:23px 0;display:flex}.lesson-toolbar>span{letter-spacing:1.1px;color:var(--muted);align-items:center;gap:6px;font-size:7px;display:flex}.lesson-toolbar>div{gap:8px;display:flex}.small-button{gap:7px;padding:8px 10px;font-size:10px}.demo-mini{letter-spacing:.5px;border:1px solid var(--border);color:var(--muted);border-radius:3px;padding:1px 4px;font-size:6px}.lesson-content{overflow:hidden}.lesson-tabs{border-bottom:1px solid var(--border);gap:21px;padding:0 20px;display:flex}.lesson-tabs>button{color:var(--muted);white-space:nowrap;border-bottom:2px solid #0000;align-items:center;gap:6px;padding:17px 0 15px;font-size:11px;display:flex}.lesson-tabs>button.active{color:var(--teal);border-bottom-color:var(--teal);font-weight:650}.lesson-tabs>button>span:not(.demo-mini){border:1px solid var(--border);border-radius:4px;padding:0 4px;font-size:9px}.resource-list{padding:21px}.resource-intro{margin-bottom:6px}.resource-intro h3{font-size:15px}.resource-intro p{color:var(--muted);margin-top:5px;font-size:10px}.resource-card{border-bottom:1px solid var(--border);align-items:flex-start;gap:13px;padding:19px 0;display:flex;position:relative}.resource-card:last-child{border:0;padding-bottom:2px}.resource-icon{background:var(--surface-alt);border:1px solid var(--border);width:37px;height:39px;color:var(--muted);border-radius:7px;flex-shrink:0;place-items:center;display:grid}.resource-card>div{flex:1;min-width:0}.resource-card .tiny-label{letter-spacing:.6px;font-size:7px;display:block}.resource-link{align-items:center;gap:7px;margin:2px 0;font-size:12px;font-weight:600;line-height:1.5;display:flex}.resource-link:hover{color:var(--teal);text-underline-offset:3px;text-decoration:underline}.resource-link svg{color:var(--muted);width:12px}.resource-card .small{font-size:9px}.resource-card p{color:var(--muted);margin-top:8px;font-size:10px;line-height:1.8}.bookmark-button{width:29px;height:29px;margin-top:9px}.bookmark-button.saved{color:var(--teal);background:var(--teal-light)}.lesson-side{flex-direction:column;gap:20px;min-width:0;display:flex}.side-card-heading{border-bottom:1px solid var(--border);padding:21px 19px 17px}.side-card-heading .tiny-label{letter-spacing:1.4px;font-size:7px}.side-card-heading h2{margin-top:7px;font-size:16px}.side-card-heading p{color:var(--muted);margin-top:7px;font-size:10px}.unit-nav-topics{padding:8px}.unit-nav-topics>a{color:var(--muted);border-radius:6px;align-items:flex-start;gap:9px;padding:12px 9px;font-size:10px;line-height:1.7;display:flex}.unit-nav-topics>a>span:nth-child(2){flex:1}.outline-dot,.unit-nav-topics>a>svg{margin-top:4px}.unit-nav-topics>a.active{color:var(--teal);background:var(--teal-light);font-weight:600}.unit-nav-topics>a:hover{background:var(--surface-alt)}.outline-dot{border:1px solid var(--muted);opacity:.6;border-radius:50%;flex-shrink:0;width:5px;height:5px;margin-top:6px;margin-right:4px}.unit-nav-footer{border-top:1px solid var(--border);color:var(--teal);justify-content:space-between;align-items:center;padding:13px 18px;font-size:10px;display:flex}.notes-nudge{border:1px dashed var(--border);text-align:center;border-radius:10px;padding:25px 15px}.notes-nudge>svg{color:var(--muted);margin:auto}.notes-nudge h3{margin-top:12px;font-size:12px}.notes-nudge p{color:var(--muted);margin:8px 0 13px;font-size:10px;line-height:1.8}.notes-nudge .text-button{font-size:10px}.notes-panel{padding:20px}.notes-panel .section-heading{margin-bottom:5px}.notes-panel h2{font-size:16px}.notes-panel .small{font-size:10px}.notes-panel textarea{resize:vertical;width:100%;min-height:300px;color:var(--ink);background:var(--surface);border:1px solid var(--border);border-radius:7px;margin-top:16px;padding:13px;font-size:12px;line-height:1.9}.notes-panel textarea::placeholder{color:var(--muted);opacity:.75}.notes-status{color:var(--muted);justify-content:space-between;gap:5px;margin-top:7px;font-size:7px;display:flex}.notes-privacy{color:var(--muted);margin-top:15px;font-size:9px;line-height:1.8}.summary-panel{background:var(--teal-light);border:1px solid #bdcfc4;border-radius:10px;margin:0 0 23px;padding:22px}.summary-panel .section-heading{margin-bottom:10px}.summary-panel h2{font-size:16px}.summary-panel>.section-heading svg{color:var(--teal)}.summary-panel>p{color:var(--muted);margin-top:12px;font-size:11px}.summary-panel ul{margin:15px 0 0;padding-left:17px;font-size:12px;line-height:1.9;list-style:outside}.summary-panel .badge{background:var(--surface)}.practice-preview,.topic-overview{padding:25px}.practice-preview h2,.topic-overview h2{margin:10px 0 12px;font-size:20px}.topic-overview>p{color:var(--muted);font-size:12px;line-height:1.9}.objective-list{margin:22px 0;padding:0;list-style:none}.objective-list li{align-items:center;gap:9px;margin:14px 0;font-size:12px;display:flex}.concept-note,.objective-list svg{color:var(--teal)}.concept-note{background:var(--teal-light);border-radius:8px;align-items:flex-start;gap:12px;margin-bottom:22px;padding:17px;display:flex}.concept-note p{font-size:11px;line-height:1.8}.concept-note strong{margin-bottom:4px;display:block}.lesson-bottom-nav{justify-content:space-between;align-items:center;gap:14px;margin-top:23px;display:flex}.lesson-bottom-nav .text-button{font-size:10px}.practice-preview>p{line-height:1.9}.practice-preview fieldset{border:0;margin:24px 0 20px;padding:0}.practice-preview legend{margin-bottom:16px;font-size:13px;font-weight:600}.practice-options{gap:9px;display:grid}.practice-options>label{border:1px solid var(--border);cursor:pointer;border-radius:7px;align-items:center;gap:12px;padding:12px;font-size:13px;display:flex}.practice-options>label.selected{border-color:var(--teal);background:var(--teal-light)}.practice-options>label.correct{border-color:#53876a}.practice-options input{accent-color:var(--teal)}.practice-options>label>span{color:var(--muted);font-size:10px}.practice-feedback{background:var(--teal-light);border-radius:8px;padding:18px}.practice-feedback strong{font-size:13px}.practice-feedback p{margin:9px 0 13px;font-size:12px}.saved-resource-list{max-width:850px;margin-top:30px;padding:8px 24px 24px}.notes-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:30px;display:grid}.note-preview{padding:25px}.note-preview h2{margin:10px 0 16px;font-size:19px}.note-preview>p{white-space:pre-wrap;overflow-wrap:anywhere;color:var(--muted);max-height:200px;margin-bottom:20px;font-size:13px;overflow:auto}@media (min-width:1600px){.page{padding-top:42px}.welcome-banner{min-height:315px}.welcome-copy h2{font-size:44px}.welcome-copy p{font-size:13px}.hero-button{font-size:12px}.course-card-art{height:125px}.course-card-content{padding:23px}.course-card-content>p{font-size:12px}.course-meta{font-size:11px}.course-card-content>.small{font-size:10px}.start-lesson{min-height:185px}.session-card{padding:23px}.workspace-grid{grid-template-columns:minmax(0,1fr) 310px}.side-card-heading p,.unit-nav-topics>a{font-size:12px}.unit-nav-topics>a{padding:15px 10px}.resource-card p{font-size:12px}.resource-link{font-size:14px}.resource-card .small{font-size:11px}.resource-card .tiny-label{font-size:9px}.video-info h2{font-size:18px}.video-info .small,.video-info .text-button{font-size:11px}}@media (max-width:1200px){:root{--sidebar:208px}.sidebar{padding-left:12px;padding-right:12px}.topbar{padding:0 28px}.page{padding:30px 28px}.app-footer{margin-left:28px;margin-right:28px}.welcome-banner{padding:28px}.welcome-copy h2{font-size:35px}.hero-art-wrap{width:44%}.floating-label{font-size:7px}.course-grid{gap:14px}.course-card-content{padding:17px}.course-title-row h3{font-size:14px}.course-card-art{height:100px;padding:18px}.dashboard-lower{grid-template-columns:1.4fr 1fr;gap:18px}.dashboard-lower .section-heading>.small{display:none}.start-lesson{gap:12px;padding:17px}.lesson-thumbnail{width:90px}.start-lesson-copy h3{font-size:12px}.circle-arrow{width:25px;height:25px}.session-card{padding:18px}.session-stats{gap:12px}.session-stats span{font-size:7px}.workspace-grid{grid-template-columns:minmax(0,1fr) 240px;gap:18px}.workspace-heading h1{font-size:23px}.lesson-toolbar>span{display:none}.lesson-toolbar>div{justify-content:flex-end;width:100%}.poster-content h2{font-size:27px}.poster-subtitle{max-width:135px}.video-poster{padding:18px}.poster-content .orbit-art{width:46%}.video-play{width:47px;height:47px}.lesson-tabs{gap:15px;padding:0 17px}.lesson-tabs>button{gap:5px;font-size:10px}.lesson-tabs .demo-mini{display:none}.video-info{padding:14px}.video-info .text-button{font-size:8px}.outline-layout{grid-template-columns:minmax(0,1fr) 235px;gap:20px}.course-page-heading>.button{padding:10px;font-size:10px}.topic-row{gap:8px;font-size:10px}}@media (max-width:1000px){:root{--sidebar:190px}.sidebar{padding-left:8px;padding-right:8px}.sidebar-note{padding:15px 11px}.brand{font-size:27px}.brand-mark{width:32px;height:32px}.header-actions{gap:8px}.search-trigger{width:195px;font-size:10px}.breadcrumb-top{gap:8px;font-size:10px}.header-divider{display:none}.topbar{padding:0 23px}.page{padding:28px 23px}h1{font-size:28px}.page-title-row .prototype-pill{display:none}.welcome-banner{min-height:270px}.welcome-copy h2{font-size:32px}.hero-art-wrap{width:43%;margin-left:0}.floating-label{display:none}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.course-grid .course-card:last-child:nth-child(odd){grid-column:auto}.dashboard-lower{grid-template-columns:1fr}.session-card{grid-template-columns:1fr 1fr;column-gap:20px;max-width:none;display:grid}.session-card-title{grid-column:1}.session-card>p{grid-area:2/1}.session-stats{grid-area:1/2/3;align-items:center}.session-footnote{grid-column:1/-1}.session-stats span{font-size:9px}.start-lesson-copy h3{font-size:14px}.desktop-break{display:none}.lesson-thumbnail{width:110px}.workspace-grid{grid-template-columns:minmax(0,1fr)}.lesson-side{grid-template-columns:1fr 1fr;align-items:start;display:grid}.notes-panel{grid-column:1/-1}.workspace-heading{gap:15px}.workspace-heading h1{font-size:25px}.workspace-heading .complete-button{align-self:flex-start;font-size:9px}.poster-content h2{font-size:36px}.poster-subtitle{max-width:none}.poster-content .orbit-art{width:49%}.video-poster{padding:22px}.video-info .text-button{font-size:10px}.lesson-tabs .demo-mini{display:inline}.lesson-tabs{gap:23px}.lesson-tabs>button{font-size:11px}.outline-layout{grid-template-columns:minmax(0,1fr)}.outline-aside{padding-top:0}.outline-info{display:none}.course-page-heading{flex-wrap:wrap}.course-page-heading>.button{margin-top:-10px;margin-left:83px}.notes-grid{grid-template-columns:1fr}}@media (max-width:760px){:root{--sidebar:232px}.sidebar{padding:25px 18px 0;transition:transform .2s;transform:translate(-100%)}.sidebar.is-open{transform:translate(0)}.sidebar-scrim{z-index:35;background:#0e202867;display:block;position:fixed;inset:0}.app-body{margin-left:0}.mobile-menu{display:inline-flex}.topbar{gap:9px;height:66px;padding:0 20px}.header-left{gap:10px}.breadcrumb-top{font-size:10px}.breadcrumb-top>strong,.breadcrumb-top>svg{display:none}.header-actions{gap:7px}.search-trigger{background:0 0;border:0;width:auto;padding:8px}.search-trigger kbd,.search-trigger>span{display:none}.header-avatar{width:27px;height:27px;font-size:10px}.theme-toggle{width:31px}.page{padding:28px 22px}.page-title-row{margin-bottom:24px}.eyebrow{letter-spacing:1.2px;font-size:8px}h1{letter-spacing:-1px;font-size:29px}.page-description{font-size:12px}.welcome-banner{min-height:280px;padding:27px}.welcome-copy h2{font-size:35px}.hero-art-wrap{width:43%;margin-right:-10px}.welcome-copy{width:60%}.hero-button{gap:6px;padding:10px;font-size:9px}.welcome-copy p{font-size:10px}.art-caption{font-size:5px}.courses-section{margin-top:29px}.section-heading h2{font-size:18px}.section-heading .text-button{font-size:11px}.course-card-art{height:105px}.course-card-content{padding:17px}.course-title-row h3{font-size:16px}.course-card-content>p{min-height:38px;font-size:11px}.course-meta{font-size:9px}.course-grid{gap:15px}.dashboard-lower{margin-top:28px}.session-card{padding:20px}.session-stats strong{font-size:28px}.dashboard-tip{align-items:flex-start}.dashboard-tip p{font-size:10px}.dashboard-tip>svg{display:none}.app-footer{flex-direction:column;gap:6px;margin:0 22px;padding:20px 0;font-size:8px}.breadcrumbs{margin-bottom:24px;font-size:10px}.course-page-heading{gap:14px}.course-page-heading h1{font-size:27px}.course-page-heading>.course-icon{width:52px;height:52px}.course-page-heading .eyebrow{font-size:6px}.course-page-heading p{max-width:230px;font-size:10px}.course-page-heading>.button{margin-left:66px}.unit summary strong{font-size:12px}.unit-topic-count{font-size:9px}.unit>summary{gap:12px;padding:17px}.topic-list{padding:2px 17px}.topic-row{font-size:11px}.outline-page>.breadcrumbs{margin-bottom:30px}.workspace-page{padding-top:22px}.workspace-heading{flex-direction:column;align-items:flex-start;gap:14px}.workspace-heading h1{font-size:27px}.workspace-heading .eyebrow{font-size:7px;line-height:1.8}.workspace-heading .complete-button{align-self:flex-start;margin-top:0;font-size:10px}.workspace-heading .page-description{font-size:11px}.video-poster{padding:22px}.poster-content h2{font-size:clamp(25px,5.5vw,38px)}.poster-content .hero-eyebrow{font-size:6px}.poster-subtitle{font-size:7px}.video-info h2{font-size:15px}.video-info .small,.video-info .text-button{font-size:9px}.video-fallback{align-items:flex-start;font-size:8px;line-height:1.8}.lesson-toolbar{padding:20px 0}.lesson-toolbar>div{justify-content:space-between}.lesson-toolbar>span{display:none}.small-button{padding:8px 10px;font-size:10px}.lesson-tabs>button{font-size:11px}.lesson-tabs{gap:20px;padding:0 17px}.lesson-tabs .demo-mini{display:none}.resource-list{padding:20px}.lesson-bottom-nav .text-button{font-size:9px}.notes-panel{padding:20px}.notes-panel textarea{min-height:220px}.empty-state{padding:45px 20px}.empty-state h2{font-size:22px}.notes-nudge{padding:25px 12px}}@media (max-width:440px){.page{padding:25px 18px}.topbar{padding:0 14px}.page h1{font-size:27px}.welcome-banner{min-height:280px;padding:25px 22px}.welcome-copy{width:80%}.welcome-copy h2{font-size:34px}.hero-art-wrap{opacity:.6;width:220px;position:absolute;top:62px;right:-92px}.hero-button{font-size:9px}.hero-art-wrap .art-caption{display:none}.welcome-copy p{font-size:11px}.course-grid{grid-template-columns:1fr;gap:18px}.course-card-art{height:104px;padding:22px}.course-card-content{padding:20px}.course-card-content>p{max-width:280px;min-height:0;font-size:12px}.course-card-content>.small,.course-meta{font-size:10px}.course-title-row h3{font-size:18px}.course-card-art>.course-icon{width:59px;height:59px}.subject-category{font-size:9px}.section-heading .text-button{font-size:10px}.dashboard-lower .section-heading h2{font-size:17px}.start-lesson{gap:13px;padding:16px}.lesson-thumbnail{width:80px;height:95px}.start-lesson-copy h3{font-size:12px}.lesson-details{gap:8px;font-size:8px}.lesson-details svg{width:12px}.start-lesson-copy>.tiny-label{font-size:7px}.circle-arrow{display:none}.session-card{column-gap:8px;padding:18px}.session-card-title h3{font-size:11px}.session-card-title .icon-tile{width:27px;height:27px}.session-stats{gap:10px}.session-stats span{font-size:7px}.session-card>p{font-size:9px}.dashboard-tip{gap:10px;padding:14px}.workspace-heading h1{font-size:24px}.video-poster{padding:15px 18px}.poster-content h2{margin-top:7px;font-size:25px}.poster-content .hero-eyebrow{letter-spacing:1px;font-size:5px}.poster-content .orbit-art{width:49%;margin-right:-30px}.poster-subtitle{max-width:140px;margin-top:9px;font-size:6px}.poster-top{font-size:6px}.poster-top>span{font-size:5px}.poster-top>svg{width:13px}.poster-bottom{padding-top:8px;font-size:5px}.poster-bottom>span{letter-spacing:.8px;font-size:4px}.video-play{width:43px;height:43px;left:56%}.video-play svg{width:18px}.video-info{gap:9px;padding:14px}.video-info h2{font-size:13px}.video-info .small{font-size:8px}.video-info .text-button{gap:4px;font-size:8px}.video-info .text-button svg{width:11px}.lesson-tabs{gap:18px;padding:0 13px}.lesson-tabs>button{gap:4px;font-size:9px}.lesson-tabs>button>svg{width:14px}.resource-list{padding:17px}.resource-card{gap:10px}.resource-icon{width:30px;height:33px}.resource-link{font-size:11px}.resource-card p{font-size:9px}.resource-card .small{font-size:8px}.resource-card .tiny-label{font-size:6px}.resource-card .bookmark-button{width:23px}.lesson-side{grid-template-columns:1fr}.notes-panel{grid-column:auto}.notes-nudge{display:none}.lesson-bottom-nav{flex-wrap:wrap}.practice-preview,.topic-overview{padding:20px}.practice-options>label,.practice-preview legend{font-size:12px}.practice-preview h2,.topic-overview h2{font-size:19px}.summary-panel h2{font-size:14px}.summary-panel{padding:18px}.summary-panel ul{font-size:11px}.course-page-heading>.button{margin-top:4px;margin-left:0}.unit-topic-count{display:none}.unit summary>svg{margin-left:auto}.topic-status{font-size:8px}.topic-row{gap:8px;font-size:10px}.topic-row .planned-label{padding:3px;font-size:7px}.unit summary strong{font-size:11px}.picker-row{gap:10px;padding:10px}.picker-row small{font-size:8px}.picker-row strong{font-size:12px}.dialog{padding:21px}.dialog-header h2{font-size:21px}.dialog-intro{font-size:11px}.dialog .course-icon{width:35px;height:35px}}@media (max-width:760px){.sidebar-close{display:inline-flex;position:absolute;top:26px;right:12px}.mobile-menu,.theme-toggle{min-width:40px;min-height:40px}.lesson-toolbar .small-button{min-height:42px}.bookmark-button{min-width:36px;min-height:40px}.search-trigger{justify-content:center;min-width:40px;min-height:40px}}@media (prefers-reduced-motion:reduce){*,:after,:before{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.brand{letter-spacing:-1px;gap:8px;font-size:25px}.video-empty{aspect-ratio:auto;color:#e6efdc;background:var(--hero);align-items:center;gap:12px;min-height:320px;padding:34px;display:flex;overflow:hidden}.video-empty-copy{z-index:1;width:65%;position:relative}.video-empty h2{letter-spacing:-.8px;margin-top:19px;font-size:32px;font-weight:500;line-height:1.2}.video-empty p{color:#d0e3d7;margin-top:17px;font-size:13px}.video-empty-copy>span:last-child{color:#b7d0c4;max-width:280px;margin-top:7px;font-size:11px;line-height:1.9;display:block}.video-empty>.orbit-art{color:#a4c7b6;width:40%;margin-right:-12px}.video-picker{color:var(--muted);border-bottom:1px solid var(--border);align-items:center;gap:15px;padding:17px 20px;font-size:11px;display:flex}.video-picker select{border:1px solid var(--border);background:var(--surface);min-width:0;color:var(--ink);border-radius:6px;flex:1;padding:9px}.approved-video-player[hidden]{display:none}.player-fallback{margin-top:0;padding:0 20px 15px}.resource-empty{text-align:center;color:var(--muted);padding:27px 15px 18px}.resource-empty>svg{color:var(--teal);margin:0 auto 14px}.resource-empty h3{color:var(--ink);font-size:15px}.resource-empty p{max-width:390px;margin:9px auto 0;font-size:12px;line-height:1.9}.resource-original{margin-top:9px;font-size:10px}.active-resource .resource-icon{color:var(--teal);background:var(--teal-light)}.saved-unavailable{max-width:850px;margin-top:24px;padding:22px}.private-bookmark-notice h2,.saved-unavailable h2{margin-bottom:9px;font-size:16px}.private-bookmark-notice p,.saved-unavailable p{color:var(--muted);font-size:12px;line-height:1.9}.private-bookmark-notice{max-width:700px;padding-top:27px}.academic-art{width:100%;height:auto;display:block}.hero-actions{flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px;display:flex}.hero-actions .hero-button{margin-top:0}.hero-study-link{color:#d2e4da;align-items:center;gap:7px;font-size:10px;display:inline-flex}.hero-practice-disclosure{color:#bdd1c8;margin-top:13px;font-size:9px;line-height:1.7;display:block}.nav-link.nav-practice:not(.active){color:var(--teal);background:var(--teal-light)}.course-card-main{display:block}.course-card-line-art{opacity:.23;pointer-events:none;width:150px;height:94px;position:absolute;bottom:-9px;right:8px}.course-card-practice{border-top:1px solid var(--border);background:var(--teal-light);color:var(--teal);align-items:center;gap:8px;padding:12px 19px;font-size:11px;font-weight:600;display:flex}.course-card-practice>svg:last-child{margin-left:auto}.lesson-thumbnail{background:#20483f}.course-heading-actions{flex-wrap:wrap;gap:9px;margin-left:auto;display:flex}.course-heading-actions .button{font-size:10px}.course-art-banner{color:#edf4e8;background:var(--hero);border-radius:12px;justify-content:space-between;align-items:center;gap:20px;min-height:190px;margin-bottom:29px;padding:20px 32px;display:flex;overflow:hidden}.course-art-banner h2{margin-top:14px;font-size:26px;font-weight:500;line-height:1.3}.course-art-banner p{color:#bcd1c6;margin-top:10px;font-size:11px}.course-art-banner>.academic-art{flex-shrink:0;width:260px;margin:-24px 0}.unit-practice-row{border-top:1px solid var(--border);color:var(--muted);background:var(--surface-alt);justify-content:space-between;align-items:center;gap:12px;padding:11px 20px;font-size:10px;display:flex}.unit-practice-row .text-button{font-size:10px}.topic-row-with-practice{gap:14px;padding:0}.topic-study-link{flex:1;align-items:center;gap:10px;min-width:0;padding:16px 0;display:flex}.topic-study-link>span:nth-child(2){flex:1}.topic-practice-link{color:var(--teal);border-left:1px solid var(--border);align-items:center;gap:5px;padding:12px 0 12px 12px;font-size:10px;font-weight:500;display:flex}.workspace-heading-actions{flex-wrap:wrap;align-items:center;gap:9px;margin-left:auto;display:flex}.workspace-heading-actions .button{white-space:nowrap;font-size:11px}.workspace-heading .workspace-heading-actions .complete-button{margin:0}.lesson-tabs>button.practice-tab{color:var(--teal);margin-left:auto;font-weight:600}.lesson-tabs>button.practice-tab:not(.active){border-bottom-color:var(--teal-light)}.workspace-practice-heading{color:var(--teal);justify-content:space-between;align-items:center;gap:14px;padding:17px 25px 0;font-size:11px;display:flex}.workspace-practice-heading>span{align-items:center;gap:7px;display:flex}.workspace-practice-heading .text-button{font-size:10px}#panel-practice{scroll-margin-top:24px}.practice-page>.eyebrow{align-items:center;gap:8px;display:flex}.practice-page>h1{margin-top:10px}.practice-focus{background:var(--hero);color:#edf4e8;justify-content:space-between;align-items:center;gap:24px;min-height:170px;margin:28px 0 23px;padding:24px 30px;display:flex;overflow:hidden}.practice-focus-copy{z-index:1;position:relative}.practice-focus .tiny-label{color:#bdd1c8}.practice-focus h2{margin:12px 0;font-size:24px;font-weight:500}.practice-focus p{color:#bdd1c8;font-size:11px;line-height:1.8}.practice-focus-art{flex-shrink:0;width:210px;margin:-28px 0}.practice-filters{grid-template-columns:1fr 1fr 1.5fr;gap:16px;margin-bottom:25px;display:grid}.practice-filters label{color:var(--muted);flex-direction:column;gap:8px;min-width:0;font-size:11px;display:flex}.practice-filters select{border:1px solid var(--border);width:100%;min-width:0;color:var(--ink);background:var(--surface);text-overflow:ellipsis;border-radius:7px;padding:11px 10px;font-size:11px}.practice-filters select:disabled{opacity:.55;cursor:not-allowed}.practice-mode-row{border-bottom:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:15px;padding:19px 24px;display:flex}.practice-modes{flex-wrap:wrap;gap:8px;display:flex}.practice-modes button{border:1px solid var(--border);border-radius:6px;align-items:center;gap:7px;padding:9px 12px;font-size:12px;display:flex}.practice-modes button span{letter-spacing:.5px;font-size:7px}.practice-modes button.selected{color:var(--teal);background:var(--teal-light);border-color:var(--teal)}.practice-modes button:disabled{color:var(--muted);opacity:.65;cursor:not-allowed}.practice-context{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;padding:20px 25px 0;font-size:10px;display:flex}.practice-context>a{color:var(--teal);align-items:center;gap:5px;margin-left:auto;display:flex}.practice-empty{margin:0}.practice-position{color:var(--teal);flex-wrap:wrap;justify-content:space-between;gap:12px;padding:20px 25px 0;font-size:11px;display:flex}.practice-position>span:last-child{color:var(--muted);font-size:10px}.practice-progress{margin:13px 25px 0}.practice-question-frame{scroll-margin-top:24px}.practice-question-frame:focus{outline:none}.practice-question-frame:focus-visible{outline:2px solid var(--teal);outline-offset:-2px}.practice-navigation{border-top:1px solid var(--border);justify-content:space-between;align-items:center;gap:12px;padding:20px 25px;display:flex}.practice-navigation .button{font-size:11px}@media (max-width:760px){.practice-position{padding:18px 20px 0}.practice-progress{margin:12px 20px 0}.practice-navigation{flex-wrap:wrap;padding:18px 20px}.practice-navigation>.small{text-align:center;order:3;width:100%;font-size:10px}.practice-navigation .button{min-height:42px}}@media (max-width:1200px){.course-page-heading{flex-wrap:wrap}.course-heading-actions{margin-left:0}.workspace-heading{flex-wrap:wrap}.workspace-heading-actions{margin-left:0}}@media (max-width:760px){.hero-actions{flex-direction:column;align-items:flex-start;gap:12px}.hero-practice-disclosure{max-width:230px}.welcome-banner{min-height:330px}.course-art-banner{min-height:175px;padding:22px;position:relative}.course-art-banner>div{z-index:1;max-width:70%}.course-art-banner h2{font-size:23px}.course-art-banner>.academic-art{opacity:.7;width:210px;margin-right:-60px}.course-heading-actions{width:100%}.course-heading-actions .button{min-height:42px}.unit-practice-row{padding:11px 17px}.topic-study-link{gap:7px}.topic-study-link .planned-label,.topic-study-link .topic-status{display:none}.topic-practice-link{min-height:44px}.workspace-heading-actions .button{min-height:42px}.workspace-practice-heading{flex-wrap:wrap;padding:17px 20px 0}.practice-focus{padding:24px;position:relative}.practice-focus-copy{max-width:80%}.practice-focus h2{font-size:22px}.practice-focus-art{opacity:.4;width:210px;position:absolute;right:-65px}.practice-filters{grid-template-columns:1fr 1fr;gap:13px}.practice-filters>label:last-child{grid-column:1/-1}.practice-filters select{min-height:44px}.practice-mode-row{padding:17px 20px}.practice-modes{gap:6px}.practice-modes button{padding:10px 8px;font-size:11px}.practice-modes button span{font-size:6px}.practice-context{padding:18px 20px 0}.practice-context>a{margin-left:0}}@media (max-width:440px){.hero-art-wrap{top:70px}.hero-study-link{font-size:9px}.hero-practice-disclosure{font-size:8px}.course-art-banner>.academic-art{opacity:.35;width:190px;position:absolute;right:-12px}.course-art-banner>div{max-width:85%}.topic-practice-link{padding-left:8px;font-size:9px}.topic-row-with-practice{gap:8px}.practice-context{line-height:1.8}.practice-modes{width:100%}.practice-mode-row>.small{font-size:10px}}@media (max-width:760px){.brand{font-size:23px}.video-empty{min-height:290px;padding:25px;position:relative}.video-empty-copy{width:80%}.video-empty h2{font-size:28px}.video-empty .hero-eyebrow{letter-spacing:1.1px;font-size:7px}.video-empty>.orbit-art{opacity:.35;width:220px;position:absolute;right:-62px}.video-picker{flex-direction:column;align-items:stretch;gap:5px;padding:13px}}.video-tabs{border-bottom:1px solid var(--border);gap:8px;padding:14px 18px;display:flex;overflow-x:auto}.video-tabs>button{border:1px solid var(--border);min-height:44px;color:var(--muted);border-radius:7px;flex-shrink:0;align-items:center;gap:8px;padding:10px 17px;display:flex}.video-tabs>button[aria-selected=true]{color:var(--ink);background:var(--teal-light);border-color:var(--teal)}.video-actions,.video-navigation,.video-sequence{flex-wrap:wrap;justify-content:space-between;gap:12px;padding:13px 20px;display:flex}.video-sequence{color:var(--muted);font-size:11px}.video-actions{justify-content:flex-start;padding-top:0}.video-actions .button,.video-navigation .button{min-height:44px}.video-actions .is-complete{color:var(--teal);border-color:var(--teal);background:var(--teal-light)}.video-info>div{min-width:0}.video-info h2{overflow-wrap:anywhere}.video-stage:fullscreen{aspect-ratio:auto;background:#000;justify-content:center;align-items:center;width:100vw;height:100vh;display:flex}.video-stage:fullscreen iframe{object-fit:contain;width:100%;height:100%;position:static}.fullscreen-exit{z-index:2;position:absolute;top:14px;right:14px}.workspace-heading h1>.small{margin-bottom:8px;font-size:.55em;display:block}.workspace-grid.with-notes{grid-template-columns:minmax(0,1fr) 300px}@media (max-width:1000px){.workspace-grid.with-notes{grid-template-columns:minmax(0,1fr)}.workspace-grid.with-notes .lesson-side{order:0}}@media (max-width:760px){.video-info{flex-direction:column;align-items:flex-start}.video-info h2{font-size:17px}.video-info .text-button{min-height:44px;font-size:12px}.video-stage{min-height:200px}.video-tabs{padding:12px}.video-sequence{font-size:11px}.lesson-toolbar>div{flex-wrap:wrap;gap:8px}.lesson-toolbar .button{min-height:44px}}.practice-score-policy{margin:10px 25px 0;line-height:1.7}.practice-navigation-actions{flex-wrap:wrap;justify-content:flex-end;gap:9px;display:flex}.practice-result{padding:28px 25px}.practice-result h2{margin:12px 0;font-size:24px}.practice-result p{margin:12px 0;line-height:1.8}.practice-result .practice-result-score{color:var(--teal);font-size:30px;font-weight:600}.practice-result .flex-actions{margin-top:23px}@media (max-width:760px){.practice-score-policy{margin:10px 20px 0}.practice-result{padding:24px 20px}.practice-navigation-actions{flex:1}.topic-practice-link{white-space:nowrap}}.feedback-entry{min-height:44px}.feedback-dialog{width:min(540px,100vw - 32px);max-height:calc(100dvh - 32px);padding:0;overflow-y:auto}.feedback-dialog .dialog-header{padding:24px 26px 6px}.feedback-dialog .dialog-header h2{font-size:21px;line-height:1.4}.feedback-form,.feedback-success{padding:0 26px 26px}.feedback-form>p,.feedback-success>p{margin:12px 0 20px;line-height:1.7}.feedback-form fieldset{border:0;margin:20px 0;padding:0}.star-rating{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.star-rating label{color:var(--muted);cursor:pointer;border-radius:5px;padding:5px}.star-rating label.selected{color:var(--teal)}.star-rating label.selected svg{fill:currentColor}.star-rating label:focus-within{outline:2px solid var(--teal);outline-offset:2px}.rating-value{width:100%;margin:4px 5px 0}.feedback-text-label{flex-direction:column;gap:10px;font-size:13px;display:flex}.feedback-text-label textarea{background:var(--surface);color:var(--ink);border:1px solid var(--border);resize:vertical;width:100%;min-height:110px;font:inherit;border-radius:8px;padding:12px;line-height:1.6}.feedback-meta{color:var(--muted);justify-content:space-between;gap:12px;margin:8px 0 20px;font-size:10px;line-height:1.6;display:flex}.feedback-opt-in{align-items:flex-start;gap:10px;font-size:12px;line-height:1.6;display:flex}.feedback-opt-in input{margin-top:3px}.feedback-form input{accent-color:var(--teal)}.feedback-actions{flex-wrap:wrap;justify-content:flex-end;gap:10px;margin-top:24px;display:flex}.feedback-actions .button{min-height:44px}.feedback-honeypot{display:none}.feedback-error{color:#bd4545;border:1px solid;border-radius:7px;padding:12px;font-size:12px}.report-reasons{flex-direction:column;gap:8px;display:flex}.report-reasons label{border:1px solid var(--border);cursor:pointer;border-radius:6px;align-items:center;gap:10px;min-height:44px;padding:10px;font-size:12px;display:flex}.practice-position{align-items:center}.practice-position-help{width:100%}.question-report{margin-left:auto;position:relative}.report-trigger{color:#c54c4c;min-width:44px;min-height:44px;position:relative}.report-trigger:hover{background:currentColor}@supports (color:color-mix(in lab,red,red)){.report-trigger:hover{background:color-mix(in srgb,currentColor 8%,transparent)}}.report-tooltip{background:var(--surface);color:var(--ink);border:1px solid var(--border);white-space:nowrap;z-index:3;border-radius:5px;padding:7px 10px;font-size:11px;display:none;position:absolute;bottom:100%;right:0}.report-trigger:focus-visible .report-tooltip,.report-trigger:hover .report-tooltip{display:block}.public-reviews{padding-top:0}.public-reviews h2{margin-bottom:20px;font-size:21px}.public-review-grid{grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));gap:16px;display:grid}.public-review{border:1px solid var(--border);background:var(--surface);border-radius:10px;padding:22px}.public-review p{white-space:pre-wrap;overflow-wrap:anywhere;margin:14px 0;font-size:13px;line-height:1.8}.public-review-stars{color:var(--teal);gap:4px;margin-bottom:12px;display:flex}@media (max-width:760px){.feedback-form,.feedback-success{padding:0 20px 20px}.feedback-dialog .dialog-header h2{font-size:18px}.app-footer,.feedback-meta{flex-wrap:wrap}.star-rating{gap:5px}}.practice-figure{border:1px solid var(--border);background:var(--surface);border-radius:9px;max-width:440px;margin:18px 0 24px;padding:12px}.practice-figure svg{width:100%;height:auto;display:block;overflow:visible}.practice-figure .plot-grid{stroke:var(--border);stroke-width:.6px}.practice-figure .plot-axes{stroke:var(--muted);stroke-width:1px}.practice-figure .plot-labels{fill:var(--ink);font-size:14px}.practice-figure .plot-curves{fill:none;stroke:var(--teal);stroke-width:2.5px;stroke-linejoin:round}.practice-figure circle{stroke:var(--teal);stroke-width:2px}.practice-figure .open{fill:var(--surface)}.practice-figure .closed{fill:var(--teal)}.practice-figure figcaption{color:var(--muted);margin-top:6px;font-size:11px;line-height:1.7}.practice-table-wrap{max-width:100%;margin:20px 0 24px;overflow-x:auto}.practice-table{border-collapse:collapse;border:1px solid var(--border);font-variant-numeric:tabular-nums;width:100%;max-width:440px;font-size:13px}.practice-table caption{text-align:left;color:var(--muted);padding-bottom:12px;font-size:12px;line-height:1.7}.practice-table td,.practice-table th{text-align:center;border:1px solid var(--border);padding:9px 15px;font-weight:400}.practice-table thead th{background:var(--teal-light);font-weight:600}.practice-table tbody th{color:var(--muted)}.instructor-selection{margin-bottom:16px}.instructor-selection fieldset{border:0;margin:0;padding:0}.instructor-selection legend{margin-bottom:10px;font-size:13px;font-weight:600}.instructor-options{border:1px solid var(--border);background:var(--surface);border-radius:9px;gap:4px;max-width:100%;padding:4px;display:inline-flex}.instructor-options label{min-height:44px;color:var(--muted);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;padding:10px 22px;font-size:13px;display:flex;position:relative}.instructor-options label.selected{background:var(--teal-light);color:var(--teal)}.instructor-options label:focus-within{outline:2px solid var(--teal);outline-offset:2px}.instructor-options input{opacity:0;width:1px;height:1px;position:absolute}.instructor-selection>p{margin:8px 0;line-height:1.7}.instructor-options:has(input:disabled){opacity:.65}.geography-stimulus{border:1px solid var(--border);background:var(--surface);border-radius:9px;max-width:620px;margin:18px 0 25px;padding:16px}.stimulus-heading{justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;font-size:14px;display:flex}.stimulus-heading button{flex-shrink:0;min-height:44px}.geography-stimulus>svg,.stimulus-dialog>svg{width:100%;height:auto;color:var(--ink);display:block}.geography-stimulus>svg text,.stimulus-dialog>svg text{fill:var(--ink);font-size:15px}.geography-stimulus figcaption,.stimulus-description,.stimulus-legend{color:var(--muted);margin:12px 0;font-size:12px}.geography-stimulus figcaption>span{margin-top:6px;font-size:10px;display:block}.geo-regions polygon,.geo-ring{fill:var(--surface);stroke:var(--muted);stroke-width:1.4px}.geo-legend .geo-shade-0,.geo-regions .geo-shade-0{fill:#ecf5f1;background:#ecf5f1}.geo-legend .geo-shade-1,.geo-regions .geo-shade-1{fill:#b6d9cc;background:#b6d9cc}.geo-legend .geo-shade-2,.geo-regions .geo-shade-2{fill:#7dbba6;background:#7dbba6}.geo-legend .geo-shade-3,.geo-regions .geo-shade-3{fill:#438b78;background:#438b78}.geo-legend .geo-shade-4,.geo-regions .geo-shade-4{fill:#205e51;background:#205e51}.geography-stimulus>svg .geo-region-label,.stimulus-dialog>svg .geo-region-label{fill:#152c27;paint-order:stroke;stroke:#f3f9f6;stroke-width:3px;stroke-linejoin:round}.geo-axis path,.geo-north path,.geo-path line,.geo-path polyline,.geo-scale path{fill:none;stroke:currentColor;stroke-width:2px}.geo-path text{paint-order:stroke;stroke:var(--surface);stroke-width:3px;stroke-linejoin:round}.geo-axis line{stroke:var(--border)}.geo-dot{fill:var(--teal);stroke:var(--surface);stroke-width:.7px}.geo-point{fill:var(--teal);stroke:var(--ink);stroke-width:1px}.geo-bar{stroke:var(--ink);stroke-width:.6px}.geo-series-0{fill:#559e89}.geo-series-1{fill:#c6a374}.geo-series-2{fill:#9b9ac2}.geo-legend{flex-wrap:wrap;gap:8px 18px;margin:10px 0;padding:0;font-size:12px;list-style:none;display:flex}.geo-legend li{align-items:center;gap:6px;display:flex}.geo-legend span{border:1px solid var(--muted);width:18px;height:14px;display:inline-block}.geo-table-wrap{max-width:100%;margin:12px 0;overflow-x:auto}.geo-table-wrap table{border-collapse:collapse;width:100%;font-size:12px}.geo-table-wrap td,.geo-table-wrap th{border:1px solid var(--border);text-align:left;overflow-wrap:anywhere;padding:8px 10px}.geo-table-wrap th{font-weight:600}.stimulus-dialog{width:min(960px,100vw - 24px);max-height:calc(100dvh - 24px);padding:20px;overflow:auto}.stimulus-dialog .dialog-header{padding:0 0 15px}.stimulus-dialog{overflow-x:auto}@media (max-width:500px){.geography-stimulus{padding:10px}.stimulus-heading{font-size:13px}.geography-stimulus>svg text{font-size:16px}}.geography-graphic{width:100%;height:auto;color:var(--ink);display:block}.geography-graphic text{fill:var(--ink);font-size:15px}.geography-graphic .geo-region-label{fill:#152c27;paint-order:stroke;stroke:#f3f9f6;stroke-width:3px;stroke-linejoin:round}.stimulus-zoom-controls{align-items:center;gap:16px;margin:12px 0 18px;font-size:13px;display:flex}.stimulus-zoom-controls label{align-items:center;gap:10px;display:flex}.stimulus-zoom-controls input{accent-color:var(--teal);min-height:44px}.stimulus-zoom-scroll{max-width:100%;overflow-x:auto}.stimulus-zoom-scroll>div{min-width:100%}.stimulus-dialog .geography-graphic{min-width:0}.geo-table-wrap td:first-child,.geo-table-wrap th:first-child{overflow-wrap:normal;min-width:58px}.geo-path-on-fill{color:#152c27}.geo-path-on-fill .geo-path-halo{stroke:#f3f9f6;stroke-width:5px}.geography-graphic .geo-path-on-fill text{fill:#152c27;stroke:#f3f9f6}.geography-graphic text.geo-region-label-unshaded{fill:var(--ink);stroke:none}.geo-table-wrap th{overflow-wrap:normal}@media (max-width:500px){.geo-table-wrap td,.geo-table-wrap th{padding:8px 6px}}.geo-line{fill:none;stroke-width:2.5px;stroke-linejoin:round}.geo-line-circle{fill:var(--surface);stroke-width:2px}.breadcrumbs{font-size:13px;line-height:1.7}.workspace-heading .eyebrow{letter-spacing:.8px;font-size:11px;line-height:1.7}.workspace-heading .page-description{font-size:13px;line-height:1.7}.workspace-heading-actions{max-width:390px}.workspace-heading-actions .button{min-height:44px;font-size:12px}.topic-progress-note{color:var(--muted);flex-basis:100%;font-size:12px;line-height:1.6}.instructor-options label small{margin-top:2px;font-size:12px;font-weight:400;display:block}.instructor-selection>p{font-size:13px}.player-fallback,.resource-card .small,.resource-card p,.video-info .small,.video-sequence{font-size:13px;line-height:1.7}.unit-nav-topics>a{font-size:13px}.unit-nav-topics>a>span:first-child{min-width:25px;font-size:12px}.lesson-tabs button,.workspace-practice-heading,.workspace-practice-heading .text-button{font-size:13px}.unit{scroll-margin-top:24px}.sidebar nav a{font-size:13px}.workspace-label{font-size:11px}.practice-instructions{color:var(--muted);flex-wrap:wrap;align-items:baseline;gap:8px 18px;padding:0 25px 16px;font-size:13px;display:flex}.practice-instructions details{max-width:680px}.practice-instructions summary{cursor:pointer;color:var(--teal);min-height:32px;font-weight:600}.practice-instructions details p{padding:5px 0 10px;line-height:1.7}.practice-preview{container-type:inline-size}.practice-preview .sr-only{margin:0}.practice-source-note{font-size:12px}.practice-answer-pane,.practice-task-layout{min-width:0}.practice-answer-pane fieldset{margin-top:18px}.practice-preview legend{font-size:15px;line-height:1.6}.practice-options>label{min-height:48px;font-size:14px;line-height:1.6}.practice-navigation .button{min-height:44px;font-size:13px}.practice-feedback{font-size:14px;line-height:1.75}.geography-stimulus figcaption,.stimulus-description,.stimulus-legend{font-size:13px;line-height:1.7}.geography-stimulus figcaption>span{font-size:11px}.geo-table-wrap td,.geo-table-wrap th{overflow-wrap:normal;word-break:normal}@container (min-width:960px){.practice-task-layout.can-split{grid-template-columns:minmax(420px,1.05fr) minmax(400px,1fr);align-items:start;gap:28px;display:grid}.practice-task-layout.can-split .geography-stimulus{max-width:none;margin-bottom:0}}@media (max-width:600px){.practice-instructions{padding:0 20px 14px}.workspace-heading-actions{width:100%;max-width:none}.workspace-heading .eyebrow{font-size:11px}.practice-options>label{font-size:14px}.geo-table-wrap table{min-width:260px;font-size:12px}}.topic-summary{overflow-wrap:anywhere;font-size:14px;line-height:1.8}.topic-summary h3{margin:24px 0 8px;font-size:15px;line-height:1.5}.topic-summary .summary-provenance{color:var(--muted);font-size:12px}.topic-summary li+li{margin-top:10px}.summary-concepts,.topic-summary ol{padding-left:22px}.topic-summary .summary-result{border-left:3px solid var(--teal);padding-left:14px}.topic-summary .practice-table{overflow-wrap:normal;font-size:13px}.topic-summary .practice-figure figcaption{font-size:13px}.summary-math-dialog .practice-figure{max-width:none}.geography-stimulus>.ring-graphic{max-width:520px;margin-inline:auto}@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-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@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}