@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-border-style:solid;--tw-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}}}@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--radius-md:.375rem;--radius-lg:.5rem;--shadow-sm:0 1px 3px 0 #0000001a, 0 1px 2px -1px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.invisible{visibility:hidden}.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.relative{position:relative}.sticky{position:sticky}.start{inset-inline-start:var(--spacing)}.grid{display:grid}.table{display:table}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.border{border-style:var(--tw-border-style);border-width:1px}.shadow{--tw-shadow:0 1px 3px 0 var(--tw-shadow-color,#0000001a), 0 1px 2px -1px var(--tw-shadow-color,#0000001a);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}}:root{--font-geist-sans:"Segoe UI",Arial,sans-serif;--font-geist-mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace;--ink:#0f1115;--ink-soft:#52565e;--muted:#8b9099;--paper:#fafaf8;--surface:#fff;--surface-soft:#f4f4f1;--canvas:#f7f7f4;--teal:#2b6cb0;--teal-dark:#245c99;--cyan:#2b6cb0;--lime:#157f5a;--orange:#a35d0b;--purple:#65558f;--error:#b02a25;--line:#0f11151a;--focus:#2b6cb0;--shadow-sm:0 1px 2px #0f11150a;--shadow:0 1px 2px #0f11150a;--shadow-lg:0 4px 16px #0f11150f;--radius-sm:6px;--radius-md:10px;--radius-lg:14px}*{box-sizing:border-box}html{scroll-behavior:smooth;background:#eaf3f3;min-width:320px}body{color:var(--ink);background:#eaf3f3;margin:0;font-family:Arial,Helvetica,sans-serif}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{min-width:44px;min-height:44px;color:inherit;cursor:pointer;border:0}button:focus-visible,a:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--focus);outline-offset:3px}button:disabled{opacity:.45;cursor:not-allowed;filter:grayscale(.4)}.skip-link{z-index:999;color:#fff;background:#111827;border-radius:8px;padding:12px 16px;transition:top .15s;position:fixed;top:-80px;left:16px}.skip-link:focus{top:12px}.site{min-height:100vh;color:var(--ink);--site-ink:var(--ink);background:radial-gradient(circle at 7% 0,#d8f5ea 0,#0000 27%),radial-gradient(circle at 98% 14%,#e7defb 0,#0000 24%),#edf5f4;overflow-x:hidden}.site.easy-read{letter-spacing:.018em;word-spacing:.08em;font-family:OpenDyslexic,Comic Sans MS,Verdana,sans-serif}.site.theme-dark{--ink:#f0efec;--ink-soft:#c8c9c7;--muted:#989c9a;--paper:#111312;--surface:#191b1a;--surface-soft:#222523;--canvas:#151716;--line:#f0efec1f;--teal:#5b9bd5;--teal-dark:#75afe0;--cyan:#5b9bd5;--lime:#4fb58d;--orange:#d69849;--focus:#5b9bd5;color:var(--ink);background:#111312}.page-wrap{width:min(1460px,92vw);margin:0 auto;padding:34px 0 64px}.topbar{z-index:50;background:var(--surface);grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;min-height:76px;padding:10px 4vw;display:grid;position:sticky;top:0}@supports (color:color-mix(in lab, red, red)){.topbar{background:color-mix(in srgb,var(--surface) 88%,transparent)}}.topbar{border-bottom:1px solid var(--line)}@supports (color:color-mix(in lab, red, red)){.topbar{border-bottom:1px solid color-mix(in srgb,var(--line) 75%,transparent)}}.topbar{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.brand{letter-spacing:-.6px;background:0 0;align-items:center;gap:10px;width:fit-content;padding:0;font-size:20px;font-weight:900;display:inline-flex}.brand-mark{color:#fff;background:var(--teal);width:39px;height:39px;box-shadow:inset 0 -4px 0 #00000024,var(--shadow-sm);border-radius:12px 12px 19px;place-items:center;display:grid;transform:rotate(-5deg)}.main-nav{border:1px solid var(--line);background:var(--surface-soft);border-radius:15px;gap:4px;padding:4px;display:flex}.main-nav button{min-height:38px;color:var(--muted);background:0 0;border-radius:11px;padding:0 16px;font-size:13px;font-weight:800}.main-nav button:hover{color:var(--ink)}.student-stats{justify-self:end;align-items:center;gap:8px;display:flex}.streak,.xp{color:#6a4216;background:#fff3d9;border-radius:99px;align-items:center;min-height:38px;padding:0 11px;font-size:13px;display:inline-flex}.xp{color:#07505a;background:#ddf7f2}.theme-dark .streak{color:#ffdca0;background:#543b20}.theme-dark .xp{color:#bffaf3;background:#17494c}.utility-button{border:1px solid var(--line);background:var(--surface);min-width:42px;min-height:42px;box-shadow:var(--shadow-sm);border-radius:12px;font-weight:850}.utility-button:hover{transform:translateY(-1px)}.text-toggle.is-on{color:#fff;background:var(--purple)}.avatar{color:#fff;background:var(--purple);border-radius:50%;min-width:44px;font-weight:900;box-shadow:inset 0 -3px #00000029}.eyebrow,.card-label,.card-kicker{color:var(--teal-dark);letter-spacing:1.35px;font-size:11px;font-weight:900}.light{color:#e9fffe!important}h1,h2,h3,p{text-wrap:pretty}h1{letter-spacing:-2.1px;margin:7px 0 8px;font-size:clamp(32px,3.7vw,57px);line-height:.98}h2{letter-spacing:-.7px;margin:4px 0 8px;font-size:clamp(20px,2vw,28px);line-height:1.1}h3{margin:5px 0;line-height:1.25}p{line-height:1.55}.primary-button,.secondary-button,.light-button,.check-button{border-radius:13px;min-height:48px;padding:0 18px;font-weight:900;transition:transform .15s,box-shadow .15s}.primary-button,.check-button{color:#fff;background:var(--teal);box-shadow:inset 0 -4px #00000038,0 5px 14px #007b8333}.secondary-button{border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-sm)}.light-button{color:var(--teal-dark);background:#f5fffd;box-shadow:inset 0 -3px #0000001f}.primary-button:hover,.secondary-button:hover,.light-button:hover,.check-button:hover{transform:translateY(-2px);box-shadow:0 10px 24px #0c434938}.primary-button:active,.secondary-button:active,.light-button:active,.check-button:active{box-shadow:none;transform:translateY(2px)}.bento-card,.guide-card,.workbench-card,.guide-section{border:1px solid var(--line)}@supports (color:color-mix(in lab, red, red)){.bento-card,.guide-card,.workbench-card,.guide-section{border:1px solid color-mix(in srgb,var(--line) 90%,transparent)}}.bento-card,.guide-card,.workbench-card,.guide-section{background:var(--surface)}@supports (color:color-mix(in lab, red, red)){.bento-card,.guide-card,.workbench-card,.guide-section{background:color-mix(in srgb,var(--surface) 95%,transparent)}}.bento-card,.guide-card,.workbench-card,.guide-section{box-shadow:var(--shadow)}.welcome-row{justify-content:space-between;align-items:end;gap:24px;margin:16px 0 28px;display:flex}.welcome-row h1{max-width:840px}.welcome-row p{color:var(--muted);margin:0}.role-switch,.mode-switch{border:1px solid var(--line);background:var(--surface-soft);border-radius:14px;padding:4px;display:flex}.role-switch button,.mode-switch button{min-height:40px;color:var(--muted);background:0 0;border-radius:10px;padding:0 15px;font-size:13px;font-weight:850}.role-switch .active,.mode-switch .active{color:var(--ink);background:var(--surface);box-shadow:var(--shadow-sm)}.bento-grid{grid-template-columns:repeat(12,1fr);grid-auto-flow:dense;gap:16px;display:grid}.bento-card{border-radius:var(--radius-lg);padding:22px;overflow:hidden}.progress-card{grid-column:span 3;grid-template-columns:1fr 1fr;align-items:center;min-height:270px;display:grid}.progress-card>.card-kicker{grid-column:1/-1}.level-orbit{background:conic-gradient(var(--lime) 0 78%,var(--line) 78%);border-radius:50%;place-items:center;width:126px;height:126px;display:grid}.level-orbit:before{content:"";background:var(--surface);border-radius:50%;grid-area:1/1;width:102px;height:102px}.level-orbit>div{z-index:1;grid-area:1/1;place-items:center;display:grid}.level-orbit strong{letter-spacing:-3px;font-size:48px;line-height:.9}.level-orbit span{color:var(--muted);letter-spacing:1px;font-size:9px;font-weight:900}.progress-copy{flex-direction:column;gap:5px;display:flex}.progress-copy strong{font-size:22px}.progress-copy span{color:var(--muted);font-size:12px}.meter{background:var(--line);border-radius:99px;height:8px;margin-top:6px;overflow:hidden}.meter i{border-radius:inherit;background:var(--teal);height:100%;display:block}.next-card{color:#fff;background:linear-gradient(140deg,#076a70,#078e91);grid-column:span 6;grid-template-columns:1.1fr .9fr;min-height:270px;display:grid;position:relative}.next-copy{z-index:2;max-width:460px}.next-copy h2{color:#fff;margin-top:10px;font-size:36px}.next-copy p{color:#d9f8f2}.lesson-meta{flex-wrap:wrap;gap:8px;margin:16px 0 19px;display:flex}.lesson-meta span{color:#e9fffc;background:#ffffff1f;border-radius:99px;padding:6px 9px;font-size:11px;font-weight:800}.next-visual{min-height:200px;position:relative}.orbit-line{opacity:.7;border:5px solid #43d7d2;border-left-color:#0000;border-radius:50%;position:absolute;inset:20px;transform:rotate(-18deg)}.mini-battery{z-index:2;color:#fff;background:var(--orange);border:5px solid #ffd59e;border-radius:11px;padding:18px 12px;font-weight:900;position:absolute;top:42%;left:13%;box-shadow:0 15px 25px #00000040}.mini-led{z-index:2;color:#fff;background:var(--lime);border:10px solid #deef7b;border-radius:50%;place-items:center;width:74px;height:74px;display:grid;position:absolute;top:28%;right:9%;box-shadow:0 0 50px #d0f45bbf}.streak-card{grid-column:span 3;min-height:270px}.streak-number{justify-content:center;align-items:baseline;gap:8px;margin:25px 0 20px;display:flex}.streak-number>span{font-size:45px}.streak-number strong{letter-spacing:-5px;font-size:64px}.streak-number small{color:var(--muted);font-weight:800}.week-dots{justify-content:space-between;display:flex}.week-dots>span{justify-items:center;gap:5px;display:grid}.week-dots i{color:#173703;background:var(--lime);border-radius:50%;place-items:center;width:28px;height:28px;font-size:12px;font-style:normal;font-weight:900;display:grid}.week-dots small{color:var(--muted);font-size:9px}.lessons-card{grid-column:span 5;min-height:300px}.badges-card{grid-column:span 4;min-height:300px}.leaderboard-card{grid-column:span 3;min-height:300px}.card-title-row{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.card-title-row>button{min-height:36px;color:var(--teal-dark);background:var(--surface-soft);border-radius:9px;padding:0 10px;font-size:12px;font-weight:800}.card-title-row>span{color:var(--muted);font-size:11px}.lesson-list{gap:8px;margin-top:10px;display:grid}.lesson-list>div{background:var(--surface-soft);border-radius:13px;grid-template-columns:48px 1fr auto;align-items:center;gap:12px;padding:9px;display:grid}.lesson-list p{flex-direction:column;margin:0;line-height:1.3;display:flex}.lesson-list small{color:var(--muted);margin-top:3px}.lesson-icon{border-radius:12px;place-items:center;width:46px;height:46px;display:grid}.battery-bg{background:#fff0d9}.led-bg{background:#f0f7c9}.wire-bg{background:#dff5f5}.complete-dot{color:#174208;background:var(--lime);border-radius:50%;place-items:center;width:28px;height:28px;display:grid}.progress-pill{color:var(--teal-dark);background:#dff7f3;border-radius:99px;padding:5px 8px;font-size:11px}.lesson-list .locked{opacity:.62}.badge-shelf{justify-content:space-around;align-items:center;gap:8px;height:205px;display:flex}.badge-shelf>div{text-align:center;justify-items:center;gap:9px;width:30%;display:grid}.badge-shelf span{background:#fff1d6;border:7px double #f6a54d;border-radius:24px;place-items:center;width:74px;height:74px;font-size:30px;display:grid;transform:rotate(-3deg)}.badge-shelf>div:nth-child(2) span{background:#eee8ff;border-color:#8e77e4;transform:rotate(4deg)}.badge-shelf .badge-locked{opacity:.45;filter:grayscale()}.badge-shelf strong{font-size:11px}.leader-row{border-top:1px solid var(--line);grid-template-columns:26px 1fr auto;align-items:center;gap:8px;min-height:43px;font-size:12px;display:grid}.leader-row b{color:var(--muted)}.leader-row strong{color:var(--teal-dark);font-size:11px}.leader-row.you{color:#143c42;background:#e5f8f5;border-radius:9px;margin-inline:-9px;padding-inline:9px}.teacher-grid{grid-template-columns:repeat(4,1fr);gap:16px;display:grid}.teacher-hero{color:#fff;background:linear-gradient(145deg,#163a4e,#007b83);flex-direction:column;grid-area:span 2/span 2;justify-content:space-between;min-height:310px;padding:30px;display:flex}.teacher-hero h2{color:#fff;max-width:600px;font-size:38px}.teacher-hero p{color:#d7efed;max-width:540px}.teacher-hero button{align-self:flex-start;padding-inline:18px}.metric-card{flex-direction:column;justify-content:center;min-height:145px;display:flex}.metric-card span{color:var(--muted);font-size:13px;font-weight:800}.metric-card strong{letter-spacing:-3px;margin:6px 0;font-size:46px}.metric-card small{color:var(--teal-dark);font-weight:800}.class-progress{grid-column:span 3}.class-row{grid-template-columns:150px 1fr 50px;align-items:center;gap:12px;min-height:47px;font-size:12px;display:grid}.class-row>div{background:var(--line);border-radius:99px;height:9px;overflow:hidden}.class-row i{border-radius:inherit;background:linear-gradient(90deg,var(--teal),var(--cyan));height:100%;display:block}.class-row strong{text-align:right}.support-card{grid-column:span 1}.support-card p{color:var(--muted);font-size:13px}.support-list{gap:11px;margin-top:16px;display:grid}.support-list span{align-items:center;gap:8px;font-size:11px;font-weight:800;display:flex}.support-list i{border-radius:50%;width:10px;height:10px}.amber-dot{background:var(--orange)}.teal-dot{background:var(--teal)}.purple-dot{background:var(--purple)}.part-glyph{width:48px;height:48px;color:var(--teal);place-items:center;font-size:45px;line-height:1;display:grid;position:relative}.glyph-battery{background:var(--orange);border:4px solid #9a5319;border-radius:7px;width:43px;height:30px}.glyph-battery:after{content:"";background:#9a5319;border-radius:0 3px 3px 0;width:7px;height:13px;position:absolute;right:-9px}.glyph-battery i{background:#fff;width:10px;height:3px;position:absolute;left:9px}.glyph-battery i:first-child:after{content:"";background:#fff;width:3px;height:10px;position:absolute;top:-3px;left:3px}.glyph-battery i:last-child{left:26px}.glyph-switch{border-bottom:4px solid var(--purple);width:48px;height:28px}.glyph-switch:before,.glyph-switch:after{content:"";background:var(--purple);border-radius:50%;width:10px;height:10px;position:absolute;bottom:-7px}.glyph-switch:before{left:0}.glyph-switch:after{right:0}.glyph-switch i{background:var(--purple);transform-origin:0;border-radius:5px;width:33px;height:5px;position:absolute;top:19px;left:8px;transform:rotate(-27deg)}.glyph-switch b{display:none}.glyph-wire{color:var(--cyan);font-family:Georgia,serif;transform:rotate(-8deg)}.glyph-led i{background:var(--lime);border:4px solid #839119;border-radius:50% 50% 45% 45%;width:28px;height:28px;box-shadow:0 0 15px #c9f25fcc}.glyph-led b{background:#73817d;border-radius:2px;width:18px;height:8px;position:absolute;bottom:2px}.lesson-heading{justify-content:space-between;align-items:end;gap:24px;margin:6px 0 20px;display:flex}.lesson-heading h1{font-size:clamp(34px,3vw,48px)}.lesson-heading p{color:var(--muted);margin:0}.lesson-progress-card{border:1px solid var(--line);background:var(--surface);border-radius:16px;justify-content:center;align-items:center;min-height:58px;margin-bottom:15px;padding:8px 17px;display:flex}@supports (color:color-mix(in lab, red, red)){.lesson-progress-card{background:color-mix(in srgb,var(--surface) 86%,transparent)}}.lesson-progress-card{box-shadow:var(--shadow-sm)}.lesson-progress-card>div{color:var(--muted);align-items:center;font-size:11px;display:flex}.lesson-progress-card span{border:2px solid var(--line);background:var(--surface);border-radius:50%;place-items:center;width:27px;height:27px;margin-right:7px;font-weight:900;display:grid}.lesson-progress-card i{background:var(--line);width:clamp(25px,5vw,90px);height:2px;margin:0 10px}.lesson-progress-card .step-done{color:var(--ink)}.lesson-progress-card .step-done span{border-color:var(--teal);color:#fff;background:var(--teal)}.lesson-progress-card .step-done i{background:var(--teal)}.learning-space{grid-template-columns:minmax(380px,.84fr) minmax(570px,1.16fr);align-items:start;gap:17px;display:grid}.guide-card,.workbench-card{border-radius:var(--radius-lg);overflow:hidden}.guide-card{position:sticky;top:93px}.guide-topline{height:55px;color:var(--muted);justify-content:space-between;align-items:center;padding:0 20px;font-size:12px;display:flex}.video-scene{background:linear-gradient(145deg,#122f3d,#0d5053);place-items:center;min-height:344px;display:grid;position:relative;overflow:hidden}.video-grid,.canvas{background-image:linear-gradient(#5b9da11a 1px,#0000 1px),linear-gradient(90deg,#5b9da11a 1px,#0000 1px);background-size:20px 20px}.video-grid{opacity:.7;position:absolute;inset:0}.video-circuit{width:70%;height:180px;position:relative}.battery-demo{z-index:2;color:#fff;background:var(--orange);border:6px solid #ffe0a8;border-radius:12px;padding:18px 13px;font-weight:900;position:absolute;top:62px;left:0;box-shadow:0 8px 30px #00000047}.bulb-demo{z-index:2;background:#485b55;border:9px solid #a9ba48;border-radius:50%;place-items:center;width:78px;height:78px;transition:background .3s,box-shadow .3s;display:grid;position:absolute;top:41px;right:0}.bulb-demo i{border:3px solid #94a5a0;border-radius:50% 50% 45% 45%;width:22px;height:30px}.video-powered .bulb-demo{background:var(--lime);border-color:#e4f588;box-shadow:0 0 62px #d3f46d}.video-powered .bulb-demo i{background:#fff8b1;border-color:#fffbd6}.wire-demo{border:5px solid var(--cyan);height:80px;position:absolute;left:68px;right:70px}.wire-demo.one{border-bottom:0;border-radius:35px 35px 0 0;top:21px}.wire-demo.two{border-top:0;border-radius:0 0 35px 35px;top:101px}.play-button{z-index:5;width:67px;height:67px;color:var(--teal-dark);background:#fff;border-radius:50%;padding-left:5px;font-size:21px;font-weight:900;transition:transform .2s;position:absolute;box-shadow:0 12px 32px #0000004d}.play-button:hover{transform:scale(1.06)}.caption{z-index:4;color:#fff;text-align:center;background:#03161fd6;border-radius:8px;width:max-content;max-width:86%;padding:8px 13px;font-size:13px;position:absolute;bottom:18px;left:50%;transform:translate(-50%)}.checkpoint-overlay{z-index:3;color:#fff;background:#05272d4d;flex-direction:column;justify-content:flex-start;align-items:center;padding-top:29px;display:flex;position:absolute;inset:0}.checkpoint-overlay span{color:var(--lime);letter-spacing:1.4px;font-size:10px;font-weight:900}.checkpoint-overlay strong{margin-top:4px;font-size:15px}.video-controls{min-height:59px;color:var(--muted);grid-template-columns:52px 44px 1fr auto 44px 48px;align-items:center;gap:6px;padding:6px 12px;font-size:11px;display:grid}.video-controls button{background:0 0;border-radius:9px;min-height:38px;font-weight:850}.video-controls button:hover,.video-controls .control-on{color:var(--ink);background:var(--surface-soft)}.video-timeline{background:var(--line);border-radius:99px;height:7px;overflow:hidden}.video-timeline span{border-radius:inherit;background:var(--orange);height:100%;transition:width .12s cubic-bezier(.22,1,.36,1);display:block}.transcript-toggle{border-top:1px solid var(--line);background:var(--surface);justify-content:space-between;align-items:center;width:100%;padding:0 20px;font-weight:850;display:flex}.transcript-panel{border-top:1px solid var(--line);background:var(--surface-soft);max-height:230px;padding:14px 18px;overflow:auto}.transcript-panel label{color:var(--muted);letter-spacing:.7px;text-transform:uppercase;gap:5px;font-size:10px;font-weight:900;display:grid}.transcript-panel input{border:1px solid var(--line);min-height:42px;color:var(--ink);background:var(--surface);border-radius:9px;padding:0 12px}.transcript-panel p{border-bottom:1px solid var(--line);color:var(--ink-soft);grid-template-columns:38px 1fr;gap:8px;margin:0;padding:9px 0;font-size:12px;display:grid}.transcript-panel p span{color:var(--teal-dark);font-weight:800}.workbench-card{padding:20px}.workbench-header{justify-content:space-between;align-items:center;display:flex}.workbench-header h2{margin:4px 0 0;font-size:23px}.undo-group{gap:5px;display:flex}.undo-group button,.canvas-tools button{border:1px solid var(--line);background:var(--surface-soft);border-radius:10px;font-size:18px}.palette{grid-template-columns:repeat(4,1fr);gap:8px;margin:17px 0 11px;display:grid}.part{border-radius:var(--radius-md);background:var(--surface-soft);border:2px solid #0000;place-items:center;gap:1px;min-height:92px;padding:8px;font-size:12px;font-weight:850;transition:transform .17s,border-color .17s,box-shadow .17s;display:grid}.part:hover{border-color:var(--teal);transform:translateY(-3px);box-shadow:0 9px 20px #14696e26}.part:active{transform:translateY(1px)}.part small{color:var(--muted);font-size:9px;font-weight:750}.part-battery{background:#fff2df}.part-switch{background:#eee9ff}.part-wire{background:#e1f7f7}.part-led{background:#f2f8d5}.theme-dark .part-battery{background:#4a3223}.theme-dark .part-switch{background:#342c52}.theme-dark .part-wire{background:#173f43}.theme-dark .part-led{background:#3b4426}.part-armed{border-color:var(--teal);box-shadow:0 0 0 3px var(--teal)}@supports (color:color-mix(in lab, red, red)){.part-armed{box-shadow:0 0 0 3px color-mix(in srgb,var(--teal) 18%,transparent)}}.canvas{background-color:var(--canvas);border:2px dashed #a9c2c4;border-radius:17px;min-height:384px;transition:border-color .18s,box-shadow .18s;position:relative;overflow:hidden}.canvas-ready{border-color:var(--teal);box-shadow:inset 0 0 0 4px var(--teal)}@supports (color:color-mix(in lab, red, red)){.canvas-ready{box-shadow:inset 0 0 0 4px color-mix(in srgb,var(--teal) 10%,transparent)}}.canvas-ready{cursor:crosshair}.canvas-complete{border-style:solid;border-color:#839b2f;box-shadow:inset 0 0 50px #c9f25f29,0 0 0 3px #c9f25f29}.canvas-tools{z-index:12;border:1px solid var(--line);background:var(--surface);border-radius:12px;align-items:center;gap:6px;padding:4px;display:flex;position:absolute;top:10px;right:10px}@supports (color:color-mix(in lab, red, red)){.canvas-tools{background:color-mix(in srgb,var(--surface) 92%,transparent)}}.canvas-tools{font-size:10px}.canvas-tools button{min-width:35px;min-height:35px}.drop-prompt{color:var(--muted);text-align:center;pointer-events:none;flex-direction:column;justify-content:center;align-items:center;gap:7px;font-size:12px;display:flex;position:absolute;inset:0}.drop-prompt strong{color:var(--ink);font-size:17px}.drag-arrow{color:var(--teal);font-size:44px;animation:1.8s ease-in-out infinite nudge}.placed-part{z-index:5;border:2px solid var(--line);width:76px;height:76px;color:var(--ink);background:var(--surface);border-radius:17px;flex-direction:column;justify-content:center;align-items:center;gap:2px;padding:6px;transition:left .18s,top .18s,transform .18s,box-shadow .18s;display:flex;position:absolute;box-shadow:0 8px 18px #1b464c29}.placed-part>span:nth-child(2){font-size:9px;font-weight:900}.placed-part .part-glyph{margin:-7px;transform:scale(.7)}.placed-part.selected{z-index:7;border-color:var(--teal);box-shadow:0 0 0 4px var(--teal),0 12px 25px #145b6233}@supports (color:color-mix(in lab, red, red)){.placed-part.selected{box-shadow:0 0 0 4px color-mix(in srgb,var(--teal) 18%,transparent),0 12px 25px #145b6233}}.placed-part.powered{border-color:#85962f;box-shadow:0 0 22px #c9f25fad}.placed-led.powered .glyph-led i{background:#efffa1;box-shadow:0 0 29px #dafa79}.port{border:2px solid var(--surface);background:var(--teal);border-radius:50%;width:9px;height:9px;position:absolute;top:31px}.port-a{left:-6px}.port-b{right:-6px}.connection{z-index:2;background:repeating-linear-gradient(90deg,var(--cyan) 0 10px,#078594 10px 15px);transform-origin:0;pointer-events:none;border-radius:99px;height:6px;position:absolute;box-shadow:0 2px #0000001f}.connection-live{background:linear-gradient(90deg,var(--lime),#fff5a6,var(--lime));box-shadow:0 0 11px var(--lime);background-size:200% 100%;animation:.75s cubic-bezier(.22,1,.36,1) infinite energyFlow}.context-menu{z-index:20;border:1px solid var(--line);background:var(--surface);width:130px;box-shadow:var(--shadow);border-radius:11px;padding:5px;position:absolute}.context-menu button{text-align:left;background:0 0;border-radius:7px;width:100%;min-height:38px;padding:0 9px;font-size:11px;font-weight:800}.context-menu button:hover{background:var(--surface-soft)}.solution-overlay{z-index:10;color:#56340b;width:max-content;max-width:92%;box-shadow:var(--shadow-sm);background:#fff4dc;border:1px solid #e7b266;border-radius:12px;align-items:center;gap:5px;padding:8px;font-size:10px;font-weight:850;display:flex;position:absolute;bottom:15px;left:50%;transform:translate(-50%)}.solution-overlay span{background:#fff;border-radius:6px;padding:5px 7px}.selection-bar{border:1px solid var(--line);background:var(--surface-soft);border-radius:11px;justify-content:flex-end;align-items:center;gap:7px;min-height:43px;margin-top:9px;padding:5px 8px 5px 13px;font-size:10px;display:flex}.selection-bar>span{margin-right:auto;font-weight:850}.selection-bar button{border:1px solid var(--line);background:var(--surface);border-radius:7px;min-height:32px;padding:0 8px;font-size:10px;font-weight:800}kbd{border:1px solid var(--line);color:var(--muted);background:var(--surface-soft);font:inherit;border-radius:4px;margin-left:4px;padding:2px 4px}.hint-strip{color:#51340f;background:#fff7e8;border:1px solid #efc37e;border-radius:13px;grid-template-columns:1fr auto;align-items:center;gap:12px;min-height:78px;margin-top:11px;padding:12px 13px;display:grid}.theme-dark .hint-strip{color:#ffe7bd;background:#473722}.hint-strip>div{flex-direction:column;gap:2px;display:flex}.hint-level{color:#875214;letter-spacing:1.1px;font-size:9px;font-weight:900}.theme-dark .hint-level{color:#ffc974}.hint-strip strong{font-size:11px}.hint-strip small{color:#816643;font-size:9px}.theme-dark .hint-strip small{color:#d4b98e}.hint-button{color:#603a0a;background:#fff;border:1px solid #e8bb72;border-radius:10px;padding:0 14px;font-size:11px;font-weight:900}.workbench-footer{justify-content:space-between;align-items:end;gap:12px;min-height:62px;display:flex}.attempts{color:var(--muted);font-size:10px}.check-button span,.primary-button span{margin-left:12px}.lab-note{border:1px solid var(--line);width:calc(58% - 8px);color:var(--muted);background:var(--surface);border-radius:14px;align-items:center;gap:12px;margin:15px 0 0 auto;padding:12px 16px;display:flex}@supports (color:color-mix(in lab, red, red)){.lab-note{background:color-mix(in srgb,var(--surface) 82%,transparent)}}.lab-note>span{color:var(--teal);font-size:25px}.lab-note p{margin:0;font-size:11px}.lab-note strong{color:var(--ink)}.mascot-card{z-index:45;pointer-events:none;align-items:end;gap:10px;display:flex;position:fixed;bottom:18px;right:20px}.byte,.byte-static{background:linear-gradient(145deg,#37d2cc,#087d8a);border-radius:32px 32px 28px 28px;width:92px;height:92px;position:relative;box-shadow:0 13px 30px #10646c52,inset 0 -8px #00000021}.byte{pointer-events:auto;animation:2.5s ease-in-out infinite breathe}.antenna{z-index:1;background:#075f67;border-radius:8px;width:6px;height:23px;position:absolute;top:-18px;left:48%;transform:rotate(8deg)}.antenna:after{content:"";background:var(--lime);border:3px solid #fff;border-radius:50%;width:16px;height:16px;position:absolute;top:-6px;left:-5px}.ear{background:#076f79;width:12px;height:27px;position:absolute;top:30px}.ear-left{border-radius:8px 2px 2px 8px;left:-7px}.ear-right{border-radius:2px 8px 8px 2px;right:-7px}.byte-face{background:#eafffd;border:3px solid #075f6733;border-radius:21px;justify-content:space-around;align-items:center;height:43px;display:flex;position:absolute;top:18px;left:15px;right:15px}.byte-face i{background:#15233b;border-radius:50%;width:9px;height:15px;transition:height .2s,transform .2s}.byte-face b{border-bottom:2px solid #36515a;border-radius:50%;width:14px;height:5px;position:absolute;bottom:6px;left:50%;transform:translate(-50%)}.byte-bolt{color:var(--lime);font-size:24px;font-weight:900;position:absolute;bottom:4px;left:50%;transform:translate(-50%)}.speech-bubble{border:1px solid var(--line);background:var(--surface);width:188px;box-shadow:var(--shadow);pointer-events:auto;border-radius:15px 15px 4px;flex-direction:column;padding:12px 14px;font-size:11px;display:flex}.speech-bubble strong{font-size:12px}.speech-bubble span{color:var(--muted);margin-top:3px;line-height:1.35}.mascot-thinking .byte-face i,.mascot-listening .byte-face i{transform:translate(4px)}.mascot-confused .byte{animation:.55s headTilt}.mascot-confused .byte-face b{border:2px solid #36515a;border-radius:50%;width:8px;height:8px}.mascot-helping .byte{animation:.7s point}.mascot-celebrating .byte{animation:.75s infinite alternate celebrate}.mascot-celebrating .byte-face i{border-radius:50%;height:4px}.mascot-celebrating .byte-face b{border-bottom-width:4px;height:9px}.celebration-layer{z-index:100;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#071d25b8;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.celebration-card{z-index:2;width:min(540px,94vw);color:var(--ink);background:var(--surface);box-shadow:var(--shadow-lg);text-align:center;border:1px solid #ffffff80;border-radius:28px;padding:37px;position:relative}.achievement-icon{background:#fff0c9;border:8px double #eea139;border-radius:29px;place-items:center;width:92px;height:92px;margin:-82px auto 18px;font-size:43px;display:grid;transform:rotate(-4deg);box-shadow:0 14px 30px #00000038}.celebration-card h2{margin-top:10px;font-size:36px}.celebration-card p{color:var(--muted)}.reward-row{flex-wrap:wrap;justify-content:center;gap:7px;margin:21px 0;display:flex}.reward-row strong{color:#31520c;background:#eef9cc;border-radius:99px;padding:7px 10px;font-size:11px}.celebration-actions{justify-content:center;gap:8px;display:flex}.confetti{pointer-events:none;position:absolute;inset:0;overflow:hidden}.confetti i{--angle:calc(var(--i) * 15deg);background:hsl(calc(var(--i) * 47) 75% 58%);width:10px;height:18px;transform:rotate(var(--angle));border-radius:3px;animation:1.15s ease-out forwards confettiFly;position:absolute;top:43%;left:50%}.design-guide{padding-top:24px}.design-hero{color:#fff;min-height:410px;box-shadow:var(--shadow-lg);background:radial-gradient(circle at 82% 20%,#c9f25f47,#0000 22%),linear-gradient(135deg,#12364a,#007b83);border-radius:30px;grid-template-columns:1.35fr .65fr;align-items:center;gap:50px;padding:50px;display:grid}.design-hero h1{color:#fff;max-width:850px;font-size:clamp(42px,5vw,75px)}.design-hero p{color:#d8f3f1;max-width:700px;font-size:18px}.design-principles{gap:10px;display:grid}.design-principles span{background:#ffffff1a;border:1px solid #ffffff38;border-radius:13px;align-items:center;gap:13px;min-height:60px;padding:10px 13px;font-weight:800;display:flex}.design-principles b{color:var(--lime);font-size:11px}.guide-section{border-radius:var(--radius-lg);margin-top:18px;padding:32px}.section-heading{grid-template-columns:48px 1fr;gap:14px;margin-bottom:24px;display:grid}.section-heading.compact{margin-bottom:18px}.section-number{border:1px solid var(--line);width:42px;height:42px;color:var(--teal-dark);background:var(--surface-soft);border-radius:13px;place-items:center;font-size:11px;font-weight:900;display:grid}.section-heading h2{margin-bottom:4px}.section-heading p{color:var(--muted);margin:0}.direction-grid{grid-template-columns:repeat(3,1fr);gap:13px;display:grid}.direction-card{background:var(--surface-soft);text-align:left;border:2px solid #0000;border-radius:18px;flex-direction:column;align-items:flex-start;min-height:290px;padding:14px;transition:transform .2s,border-color .2s;display:flex}.direction-card:hover{transform:translateY(-4px)}@supports (color:color-mix(in lab, red, red)){.direction-card.selected-direction{box-shadow:0 0 0 4px color-mix(in srgb,var(--teal) 12%,transparent)}}.direction-preview{border-radius:13px;width:100%;height:180px;margin-bottom:14px;display:block;position:relative;overflow:hidden}.direction-card strong{font-size:17px}.direction-card small{color:var(--muted);margin-top:3px}.direction-card>b{color:var(--teal-dark);letter-spacing:1px;margin-top:10px;font-size:9px}.direction-preview i{display:block;position:absolute}.tactile .direction-preview{background:linear-gradient(145deg,#ddf5ec,#f8f0d9)}.tactile .direction-preview i:first-child{background:#fff;border-radius:14px;width:55%;height:120px;top:20px;left:18px;transform:rotate(-2deg);box-shadow:0 13px 25px #00000021}.tactile .direction-preview i:nth-child(2){background:#f7ffb5;border:14px solid #daf274;border-radius:50%;width:72px;height:72px;top:30px;right:23px;box-shadow:0 0 30px #d3ef6e}.tactile .direction-preview i:last-child{background:var(--cyan);border-radius:99px;width:68%;height:6px;bottom:33px;left:48px;transform:rotate(9deg)}.quiet .direction-preview{background:#fff;border:1px solid #dbe5e8}.quiet .direction-preview i:first-child{background:#eff5f5;border-radius:8px;height:35px;inset:18px 18px auto}.quiet .direction-preview i:nth-child(2){background:#e2f3ee;border-radius:10px;width:34%;top:68px;bottom:18px;left:18px}.quiet .direction-preview i:last-child{border:2px dashed #a8c3c3;border-radius:10px;width:52%;top:68px;bottom:18px;right:18px}.spatial .direction-preview{background:radial-gradient(circle at 70% 45%,#194f59,#091c2e)}.spatial .direction-preview i:first-child{border:3px solid var(--cyan);border-radius:18px;width:70px;height:70px;top:33px;left:25px;transform:rotateX(35deg)rotate(-12deg);box-shadow:0 15px 30px #00000080}.spatial .direction-preview i:nth-child(2){background:var(--lime);width:55px;height:55px;box-shadow:0 0 38px var(--lime);border-radius:50%;top:43px;right:32px}.spatial .direction-preview i:last-child{background:var(--cyan);height:4px;bottom:40px;left:75px;right:55px;transform:rotate(-13deg)}.decision-note{border-left:4px solid var(--teal);background:var(--surface-soft);border-radius:0 12px 12px 0;grid-template-columns:auto 1fr;gap:10px;margin-top:14px;padding:17px;font-size:13px;display:grid}.decision-note span{color:var(--muted)}.platform-grid{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.platform-grid article{border:1px solid var(--line);background:var(--surface-soft);border-radius:14px;min-height:160px;padding:18px}.platform-grid article>span{color:var(--teal-dark);letter-spacing:1px;text-transform:uppercase;font-size:10px;font-weight:900}.platform-grid h3{margin-top:10px;font-size:15px}.platform-grid p{color:var(--muted);margin:7px 0 0;font-size:12px}.system-grid{grid-template-columns:1fr 1fr;gap:32px;display:grid}.swatches{grid-template-columns:repeat(2,1fr);gap:7px;display:grid}.swatches>div{border:1px solid var(--line);background:var(--surface-soft);border-radius:11px;align-items:center;gap:9px;padding:8px;display:flex}.swatches i{border:1px solid #00000026;border-radius:9px;flex:none;width:42px;height:42px}.swatches span{flex-direction:column;display:flex}.swatches strong{font-size:11px}.swatches small{color:var(--muted);font-size:9px}.token-button{margin-top:12px}.mascot-spec{color:#15233b;background:linear-gradient(145deg,#ddf5ee,#efe8ff);border-radius:18px;grid-template-columns:140px 1fr;align-items:center;gap:23px;min-height:230px;padding:22px;display:grid}.byte-static{width:112px;height:112px;margin:auto;transform:rotate(3deg)}.byte-static .byte-face{height:49px}.mascot-spec p{color:#58677c;font-size:12px}.mood-chips{flex-wrap:wrap;gap:5px;display:flex}.mood-chips span{background:#ffffffbf;border-radius:99px;padding:5px 7px;font-size:9px;font-weight:850}.motion-table{border:1px solid var(--line);border-radius:14px;overflow:hidden}.motion-table>div{border-bottom:1px solid var(--line);min-height:49px;color:var(--ink-soft);grid-template-columns:1.4fr .7fr 1fr 1.2fr;align-items:center;gap:10px;padding:9px 15px;font-size:12px;display:grid}.motion-table>div:first-child{color:var(--ink);background:var(--surface-soft);text-transform:uppercase;letter-spacing:.6px;font-size:10px}.motion-table>div:last-child{border:0}.device-grid{grid-template-columns:repeat(3,1fr);gap:15px;display:grid}.device-grid article{text-align:center;justify-items:center;display:grid}.device{background:var(--canvas);border:7px solid #203448;border-radius:20px;height:230px;margin-bottom:13px;position:relative;overflow:hidden;box-shadow:0 15px 30px #15233b2e}.device.phone{border-radius:24px;width:116px}.device.tablet{width:235px}.device.desktop{border-width:9px;border-radius:12px;width:330px;height:205px}.device i{background:var(--teal);border-radius:6px;height:12%;position:absolute;top:7%;left:8%;right:8%}.device span{background:#153a49;border-radius:7px;width:50%;height:25%;position:absolute;top:23%;left:8%}.device b{background:var(--surface);box-shadow:var(--shadow-sm);border-radius:7px;display:block;position:absolute}.device b:first-of-type{height:17%;top:52%;left:8%;right:8%}.device b:nth-of-type(2){height:19%;top:73%;left:8%;right:8%}.device em{border:3px solid var(--lime);background:#eefa9d;border-radius:50%;width:27%;height:16%;position:absolute;top:26%;right:11%}.tablet span,.desktop span{width:38%;height:55%}.tablet b:first-of-type,.desktop b:first-of-type{height:26%;top:23%;left:49%}.tablet b:nth-of-type(2),.desktop b:nth-of-type(2){height:25%;top:53%;left:49%}.tablet em,.desktop em{top:42%;left:18%;right:auto}.device-grid h3{font-size:14px}.device-grid p{max-width:290px;color:var(--muted);margin:2px 0;font-size:11px}.age-access-grid{grid-template-columns:1fr 1fr;gap:32px;display:grid}.age-cards{gap:9px;display:grid}.age-cards article{border:1px solid var(--line);background:var(--surface-soft);border-radius:13px;padding:17px}.age-cards article>span{color:var(--teal-dark);letter-spacing:1px;font-size:9px;font-weight:900}.age-cards h3{font-size:15px}.age-cards p{color:var(--muted);margin:5px 0 0;font-size:11px}.access-list{gap:8px;margin:0;padding:0;list-style:none;display:grid}.access-list li{border:1px solid var(--line);background:var(--surface-soft);border-radius:12px;grid-template-columns:30px 1fr;gap:9px;padding:11px;display:grid}.access-list li>span{color:#26430d;background:var(--lime);border-radius:50%;place-items:center;width:27px;height:27px;font-weight:900;display:grid}.access-list div{flex-direction:column;gap:3px;display:flex}.access-list strong{font-size:11px}.access-list small{color:var(--muted);font-size:9px;line-height:1.4}.opportunity-banner{color:#fff;box-shadow:var(--shadow);background:linear-gradient(125deg,#6042bb,#8b6ee6);border-radius:22px;margin-top:18px;padding:38px}.opportunity-banner h2{color:#fff;font-size:34px}.opportunity-banner p{color:#eee9ff;max-width:850px;margin-bottom:0}.parent-grid{grid-template-columns:repeat(12,1fr);gap:16px;display:grid}.parent-hero{color:#fff;background:linear-gradient(135deg,#5f43b4,#7c63dc);grid-column:span 8;grid-template-columns:1.25fr .75fr;align-items:center;gap:25px;min-height:280px;padding:30px;display:grid}.parent-hero h2{color:#fff;max-width:620px;font-size:38px}.parent-hero p{color:#eeeaff}.parent-stats{gap:8px;display:grid}.parent-stats span{background:#ffffff1a;border:1px solid #fff3;border-radius:12px;align-items:baseline;gap:9px;min-height:58px;padding:10px 13px;font-size:11px;display:flex}.parent-stats strong{color:var(--lime);font-size:24px}.family-progress{grid-column:span 4}.mastery-row{grid-template-columns:92px 1fr 35px;align-items:center;gap:8px;min-height:47px;font-size:11px;display:grid}.mastery-row>div{background:var(--line);border-radius:99px;height:8px;overflow:hidden}.mastery-row i{border-radius:inherit;background:linear-gradient(90deg,var(--teal),var(--cyan));height:100%;display:block}.mastery-row strong{color:var(--teal-dark);text-align:right}.family-controls{grid-column:span 5}.family-controls>label,.data-saver{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:15px;min-height:65px;padding:11px 0;display:flex}.family-controls label>span,.data-saver>span{flex-direction:column;gap:3px;display:flex}.family-controls small,.data-saver small{color:var(--muted);font-size:10px}.family-controls input,.data-saver input{width:42px;height:23px;accent-color:var(--teal)}.trust-card{grid-column:span 4}.trust-card p{color:var(--muted);font-size:12px}.trust-card>div{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.text-button{min-height:36px;color:var(--teal-dark);background:0 0;padding:0 8px;font-size:11px;font-weight:850}.teacher-message{grid-column:span 3;grid-template-columns:52px 1fr;align-items:start;gap:13px;display:grid}.message-avatar{color:#fff;background:var(--teal);border-radius:16px;place-items:center;width:50px;height:50px;font-weight:900;display:grid}.teacher-message h3{font-size:13px;font-weight:700;line-height:1.45}.lesson-qna{border-top:1px solid var(--line)}.lesson-qna summary{cursor:pointer;justify-content:space-between;align-items:center;min-height:48px;padding:0 20px;font-size:12px;font-weight:850;display:flex}.lesson-qna summary span{min-width:24px;color:var(--teal-dark);background:var(--surface-soft);text-align:center;border-radius:99px;padding:4px 7px}.qna-feed{background:var(--surface-soft);gap:7px;max-height:235px;padding:10px 15px;display:grid;overflow:auto}.qna-feed article{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:10px}.qna-feed article>span{color:var(--teal-dark);letter-spacing:.5px;font-size:8px;font-weight:900}.qna-feed article>strong{margin-top:4px;font-size:11px;display:block}.qna-feed article p{color:var(--muted);margin:5px 0 0;font-size:10px}.qna-feed .teacher-answer{border-left:4px solid var(--teal)}.ask-form{background:var(--surface-soft);padding:11px 15px 15px}.ask-form label{color:var(--muted);text-transform:uppercase;letter-spacing:.6px;margin-bottom:5px;font-size:9px;font-weight:900;display:block}.ask-form>div{grid-template-columns:1fr auto;gap:6px;display:grid}.ask-form input{border:1px solid var(--line);min-width:0;min-height:42px;color:var(--ink);background:var(--surface);border-radius:9px;padding:0 11px}.ask-form button{color:#fff;background:var(--teal);border-radius:9px;min-height:42px;padding:0 12px;font-size:11px;font-weight:900}.workspace-heading{justify-content:space-between;align-items:end;gap:25px;margin:8px 0 24px;display:flex}.workspace-heading h1{max-width:860px}.workspace-heading p{color:var(--muted);margin:0}.draft-status{color:var(--muted);white-space:nowrap;align-items:center;gap:8px;font-size:11px;display:flex}.draft-status>i{background:var(--lime);border-radius:50%;width:8px;height:8px}.draft-status button{border:1px solid var(--line);color:var(--teal-dark);background:var(--surface);border-radius:10px;padding:0 12px;font-size:11px;font-weight:850}.studio-steps{border:1px solid var(--line);background:var(--surface);border-radius:17px;grid-template-columns:repeat(4,1fr);gap:6px;margin-bottom:16px;padding:7px;display:grid}@supports (color:color-mix(in lab, red, red)){.studio-steps{background:color-mix(in srgb,var(--surface) 90%,transparent)}}.studio-steps{box-shadow:var(--shadow-sm)}.studio-steps button{min-height:60px;color:var(--muted);text-align:left;background:0 0;border-radius:12px;align-items:center;gap:9px;padding:7px 10px;display:flex}.studio-steps button>span{border:2px solid var(--line);border-radius:10px;flex:none;place-items:center;width:32px;height:32px;font-size:11px;font-weight:900;display:grid}.studio-steps p{flex-direction:column;margin:0;line-height:1.2;display:flex}.studio-steps small{margin-top:3px;font-size:9px}.studio-steps .active{color:var(--ink);background:var(--surface-soft)}.studio-steps .active>span{border-color:var(--teal);color:#fff;background:var(--teal)}.studio-steps .done>span{color:#27420b;border-color:var(--lime);background:var(--lime)}.studio-layout{grid-template-columns:minmax(0,1fr) 300px;align-items:start;gap:16px;display:grid}.creator-panel,.studio-sidebar{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow)}.creator-panel{min-height:640px;padding:25px}.panel-heading{justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:20px;display:flex}.panel-heading p{color:var(--muted);margin:0;font-size:12px}.time-chip,.quality-badge{color:var(--teal-dark);background:var(--surface-soft);white-space:nowrap;border-radius:99px;padding:6px 9px;font-size:9px;font-weight:900}.file-input{clip:rect(0,0,0,0);width:1px;height:1px;position:absolute;overflow:hidden}.upload-zone{background:var(--canvas);cursor:pointer;text-align:center;border:2px dashed #9fbec0;border-radius:18px;flex-direction:column;justify-content:center;align-items:center;gap:8px;min-height:300px;display:flex}.upload-zone:hover{border-color:var(--teal)}.upload-icon{color:#fff;background:var(--teal);border-radius:20px;place-items:center;width:62px;height:62px;font-size:27px;font-weight:900;display:grid;box-shadow:inset 0 -5px #00000026}.upload-zone strong{margin-top:5px;font-size:18px}.upload-zone small{color:var(--muted)}.upload-zone b{color:var(--teal-dark);background:var(--surface);box-shadow:var(--shadow-sm);border-radius:10px;margin-top:10px;padding:10px 15px;font-size:11px}.uploaded-video{border:1px solid var(--line);background:var(--surface-soft);border-radius:16px;grid-template-columns:260px 1fr auto;align-items:center;gap:18px;min-height:200px;padding:15px;display:grid}.video-thumbnail{color:#fff;background:radial-gradient(circle,#186d72,#112f40);border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:8px;height:170px;display:flex}.video-thumbnail>span{width:58px;height:58px;color:var(--teal-dark);background:#fff;border-radius:50%;place-items:center;padding-left:4px;font-size:20px;display:grid}.uploaded-video>div:nth-child(2){flex-direction:column;gap:7px;display:flex}.uploaded-video>div:nth-child(2)>span,.uploaded-video small{color:var(--muted);font-size:10px}.uploaded-video>button{color:var(--teal-dark);background:var(--surface);border-radius:9px;align-self:start;font-size:10px;font-weight:850}.upload-meter{background:var(--line);border-radius:99px;height:8px;overflow:hidden}.upload-meter i{border-radius:inherit;background:linear-gradient(90deg,var(--teal),var(--cyan));height:100%;transition:width .25s;display:block}.caption-editor{border:1px solid var(--line);background:var(--surface-soft);border-radius:15px;margin-top:16px;padding:17px}.caption-head{justify-content:space-between;display:flex}.caption-head h3{font-size:15px}.caption-row{grid-template-columns:70px 1fr 44px;align-items:center;gap:8px;display:grid}.caption-row time{color:var(--teal-dark);font-size:10px;font-weight:900}.caption-row textarea,.criteria-grid textarea,.hint-authoring textarea,.wide-field textarea{resize:vertical;border:1px solid var(--line);width:100%;min-height:68px;color:var(--ink);background:var(--surface);border-radius:9px;padding:10px}.caption-row button{color:#fff;background:var(--teal);border-radius:9px}.caption-editor>p{color:var(--muted);margin-bottom:0;font-size:10px}.timeline-editor{border:1px solid var(--line);background:var(--surface-soft);border-radius:17px;padding:16px}.editor-preview{color:#fff;background:linear-gradient(145deg,#102f3d,#07595a);border-radius:13px;place-items:center;height:280px;display:grid;position:relative;overflow:hidden}.preview-play{z-index:3;width:62px;height:62px;color:var(--teal-dark);background:#fff;border-radius:50%;place-items:center;padding-left:4px;display:grid;box-shadow:0 12px 30px #00000040}.preview-circuit{position:absolute;inset:20%}.preview-circuit i{border:6px solid var(--lime);width:48px;height:48px;box-shadow:0 0 35px var(--lime);background:#eafa97;border-radius:50%;position:absolute}.preview-circuit i:nth-child(2){top:40%;right:0}.preview-circuit i:nth-child(3){background:var(--cyan);border:0;border-radius:9px;width:45%;height:5px;bottom:0;left:20%}.editor-preview>strong{background:#0000008c;border-radius:7px;padding:7px 10px;font-size:11px;position:absolute;bottom:16px}.timeline-track{background:repeating-linear-gradient(90deg,#d6e2e2 0 2px,transparent 2px 6px),var(--line);border-radius:8px;height:36px;margin-top:16px;position:relative}.timeline-track .watched{background:var(--teal);border-radius:8px 0 0 8px;width:42%;position:absolute;top:0;bottom:0;left:0}@supports (color:color-mix(in lab, red, red)){.timeline-track .watched{background:color-mix(in srgb,var(--teal) 30%,transparent)}}.timeline-track button{border:2px solid var(--surface);color:#fff;background:var(--teal);min-width:32px;min-height:32px;box-shadow:var(--shadow-sm);border-radius:9px;font-size:10px;font-weight:900;position:absolute;top:2px}.marker-one{left:4%}.marker-two{left:28%}.marker-three{left:78%}.timeline-track .checkpoint-marker{background:var(--orange);left:46%}.timeline-time{color:var(--muted);justify-content:space-between;margin-top:4px;font-size:9px;display:flex}.checkpoint-form{grid-template-columns:1fr 2fr;gap:11px;margin-top:16px;display:grid}.checkpoint-form>div,.checkpoint-form label,.assignment-grid label,.criteria-grid label{color:var(--muted);text-transform:uppercase;letter-spacing:.5px;flex-direction:column;gap:5px;font-size:9px;font-weight:900;display:flex}.checkpoint-form input,.checkpoint-form select,.assignment-grid input,.assignment-grid select,.difficulty-select,.component-library input{border:1px solid var(--line);min-height:44px;color:var(--ink);background:var(--surface);border-radius:9px;padding:0 11px}.wide-field{grid-column:1/-1}.wide-field textarea{text-transform:none;letter-spacing:normal;font-weight:500}.chapter-list{gap:5px;margin-top:14px;display:grid}.chapter-list>div{border:1px solid var(--line);background:var(--surface-soft);border-radius:9px;grid-template-columns:55px 1fr 44px;align-items:center;min-height:45px;padding:5px 9px;font-size:10px;display:grid}.chapter-list>div>span{color:var(--teal-dark);font-weight:900}.chapter-list>div>button{background:0 0}.chapter-list .checkpoint-row{color:#5e3c12;background:#fff5e3;border-color:#eab369}.add-row{color:var(--teal-dark);background:0 0;border:1px dashed #9db8bb;border-radius:9px;font-size:10px;font-weight:900}.challenge-builder{border:1px solid var(--line);border-radius:16px;grid-template-columns:210px 1fr;min-height:390px;display:grid;overflow:hidden}.component-library{background:var(--surface-soft);padding:12px;overflow:auto}.component-library>label{color:var(--muted);text-transform:uppercase;font-size:9px;font-weight:900}.component-library input{width:100%;margin:5px 0 8px}.library-tabs{gap:4px;margin-bottom:7px;display:flex}.library-tabs button{background:var(--surface);border-radius:8px;flex:1;min-height:34px;font-size:9px;font-weight:850}.library-tabs .active{color:#fff;background:var(--teal)}.component-library>button{border-bottom:1px solid var(--line);text-align:left;background:0 0;grid-template-columns:27px 1fr auto;align-items:center;width:100%;min-height:42px;padding:4px 7px;font-size:10px;display:grid}.component-library>button>span{background:var(--surface);width:25px;height:25px;color:var(--teal);border-radius:7px;place-items:center;font-size:16px;display:grid}.component-library>button small{color:var(--muted);font-size:8px}.component-library>button.chosen{color:var(--teal-dark);background:var(--teal)}@supports (color:color-mix(in lab, red, red)){.component-library>button.chosen{background:color-mix(in srgb,var(--teal) 8%,transparent)}}.challenge-canvas{background-color:var(--canvas);position:relative;overflow:hidden}.canvas-grid,.project-gridlines{background-image:linear-gradient(#46878b1a 1px,#0000 1px),linear-gradient(90deg,#46878b1a 1px,#0000 1px);background-size:20px 20px;position:absolute;inset:0}.builder-part{z-index:2;border:2px solid var(--line);background:var(--surface);width:78px;height:65px;box-shadow:var(--shadow-sm);border-radius:13px;flex-direction:column;justify-content:center;align-items:center;font-size:9px;display:flex;position:absolute}.builder-part i{color:var(--teal);font-size:20px;font-style:normal}.builder-part b{margin-top:3px}.builder-hint{background:var(--surface);color:var(--muted);box-shadow:var(--shadow-sm);white-space:nowrap;border-radius:8px;padding:6px 9px;font-size:9px;position:absolute;bottom:12px;left:50%;transform:translate(-50%)}.criteria-grid{grid-template-columns:1fr 1fr;gap:10px;margin-top:13px;display:grid}.criteria-grid textarea{text-transform:none;letter-spacing:normal;font-size:10px;font-weight:500}.hint-authoring{margin-top:14px}.hint-authoring>div{border-top:1px solid var(--line);grid-template-columns:30px 1fr auto;align-items:center;min-height:45px;padding:5px 8px;display:grid}.hint-authoring>div>span{color:#fff;background:var(--orange);border-radius:50%;place-items:center;width:25px;height:25px;font-size:9px;font-weight:900;display:grid}.hint-authoring p{flex-direction:column;margin:0;display:flex}.hint-authoring small{color:var(--muted);font-size:9px}.hint-authoring button{background:var(--surface-soft);border-radius:7px;min-height:32px;font-size:9px;font-weight:850}.difficulty-select{min-width:140px}.assignment-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.publish-summary{border:1px solid var(--line);background:var(--surface-soft);border-radius:15px;grid-template-columns:75px 1fr;gap:16px;margin-top:20px;padding:20px;display:grid}.summary-visual{background:#fff0cc;border:7px double #eaa14c;border-radius:21px;place-items:center;width:70px;height:70px;font-size:29px;display:grid}.publish-summary p{color:var(--muted);margin:5px 0;font-size:11px}.publish-summary>div>div{flex-wrap:wrap;gap:6px;display:flex}.publish-summary>div>div span{color:#36500f;background:#eef8d3;border-radius:99px;padding:5px 7px;font-size:8px;font-weight:850}.published-message{color:#2e490e;background:#f2f9dc;border:1px solid #8ea83f;border-radius:12px;align-items:center;gap:10px;margin-top:14px;padding:13px;display:flex}.published-message>span{background:var(--lime);border-radius:50%;place-items:center;width:30px;height:30px;font-weight:900;display:grid}.published-message>div{flex-direction:column;display:flex}.published-message small{font-size:9px}.studio-sidebar{padding:21px;position:sticky;top:93px}.health-score{color:#17383b;background:linear-gradient(135deg,#e9f7d1,#dff4ef);border-radius:14px;align-items:center;gap:12px;margin:13px 0;padding:15px;display:flex}.health-score strong{letter-spacing:-3px;font-size:46px}.health-score span{font-size:11px;font-weight:850}.studio-sidebar ul{margin:0;padding:0;list-style:none}.studio-sidebar li{border-bottom:1px solid var(--line);align-items:center;gap:8px;min-height:36px;font-size:10px;display:flex}.studio-sidebar li span{color:var(--teal-dark);font-weight:900}.data-saver{margin-top:10px}.studio-nav-buttons{grid-template-columns:1fr 1fr;gap:7px;margin-top:15px;display:grid}.studio-nav-buttons button{padding:0 9px;font-size:10px}.studio-note{color:var(--muted);text-align:center;margin-bottom:0;font-size:9px}.live-heading h1{max-width:850px}.go-live,.end-live{color:#fff;background:var(--teal);border-radius:13px;align-items:center;gap:9px;min-height:50px;padding:0 18px;font-weight:900;display:flex;box-shadow:inset 0 -4px #0000002e}.go-live i,.end-live i{background:#ff645f;border-radius:50%;width:10px;height:10px}.end-live{background:#b93944}.live-layout{grid-template-columns:minmax(0,1fr) 370px;align-items:start;gap:16px;display:grid}.broadcast-column{gap:14px;display:grid}.broadcast-stage,.live-poll,.class-control{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow)}.broadcast-stage{overflow:hidden}.broadcast-top{justify-content:space-between;align-items:center;min-height:55px;padding:0 17px;display:flex}.broadcast-top>span{color:var(--muted);letter-spacing:.8px;font-size:10px;font-weight:900}.is-live .broadcast-top>span{color:#c63942}.broadcast-top>div{gap:5px;display:flex}.broadcast-top button{background:var(--surface-soft);border-radius:9px;min-width:38px;min-height:38px}.demo-board{background-color:#113547;background-image:linear-gradient(#429ba21f 1px,#0000 1px),linear-gradient(90deg,#429ba21f 1px,#0000 1px);background-size:28px 28px;height:440px;position:relative;overflow:hidden}.live-battery{color:#fff;background:var(--orange);border:7px solid #ffd292;border-radius:14px;padding:22px 15px;font-weight:900;position:absolute;top:43%;left:14%;box-shadow:0 15px 30px #00000047}.live-bulb{color:#fff;background:var(--lime);width:95px;height:95px;box-shadow:0 0 60px var(--lime);border:15px solid #dced72;border-radius:50%;place-items:center;display:grid;position:absolute;top:30%;right:16%}.live-wire{border:7px solid var(--cyan);border-top:0;border-radius:0 0 50px 50px;height:130px;position:absolute;top:42%;left:25%;right:24%}.teacher-pointer{color:#fff;background:var(--purple);border-radius:9px 9px 9px 2px;padding:7px 10px;font-size:10px;font-weight:900;position:absolute;top:25%;left:50%}.teacher-pointer i{background:var(--purple);transform-origin:top;width:2px;height:80px;position:absolute;top:100%;left:0;transform:rotate(18deg)}.broadcast-caption{z-index:3;color:#fff;margin-top:-45px;background:#000000b3;border-radius:8px;width:max-content;max-width:85%;margin-inline:auto;padding:8px 11px;font-size:11px;position:relative}.broadcast-actions{gap:7px;min-height:68px;padding:12px;display:flex}.broadcast-actions button{border:1px solid var(--line);background:var(--surface-soft);border-radius:10px;padding:0 12px;font-size:10px;font-weight:850}.live-poll{padding:20px}.live-poll>div:first-child{justify-content:space-between;align-items:start;display:flex}.poll-options{grid-template-columns:1fr 1fr;gap:8px;margin:13px 0;display:grid}.poll-options button{border:2px solid var(--line);background:var(--surface-soft);text-align:left;border-radius:12px;grid-template-columns:32px 1fr auto;align-items:center;gap:8px;min-height:65px;padding:9px;display:grid}.poll-options b{background:var(--surface);border-radius:9px;place-items:center;width:30px;height:30px;display:grid}.poll-options strong{color:var(--teal-dark);font-size:9px}.poll-options .selected{border-color:var(--teal);background:var(--teal)}@supports (color:color-mix(in lab, red, red)){.poll-options .selected{background:color-mix(in srgb,var(--teal) 10%,var(--surface))}}.live-poll>small{color:var(--muted);font-size:9px}.class-control{position:sticky;top:93px;overflow:hidden}.control-tabs{border-bottom:1px solid var(--line);grid-template-columns:1fr 1fr;padding:6px;display:grid}.control-tabs button{color:var(--muted);background:0 0;border-radius:9px;font-size:10px;font-weight:850}.control-tabs .active{color:var(--ink);background:var(--surface-soft)}.control-tabs span{background:var(--line);border-radius:99px;margin-left:4px;padding:3px 5px}.class-insight{color:#593c14;background:#fff6e6;border:1px solid #efc079;border-radius:11px;grid-template-columns:30px 1fr;gap:8px;margin:12px;padding:11px;display:grid}.class-insight>span{font-size:21px}.class-insight p{flex-direction:column;margin:0;display:flex}.class-insight small{font-size:9px}.learner-grid{grid-template-columns:1fr 1fr;gap:6px;padding:0 12px 12px;display:grid}.learner-grid button{background:var(--surface-soft);text-align:left;border:2px solid #0000;border-radius:10px;grid-template-columns:34px 1fr auto;align-items:center;gap:6px;min-height:54px;padding:6px;display:grid}.learner-grid button>span{color:#fff;background:var(--teal);border-radius:10px;place-items:center;width:32px;height:32px;font-size:8px;font-weight:900;display:grid}.learner-grid p{flex-direction:column;margin:0;line-height:1.2;display:flex}.learner-grid strong{font-size:9px}.learner-grid small{color:var(--muted);font-size:8px}.learner-grid button>b{color:#fff;background:var(--error);border-radius:50%;place-items:center;width:20px;height:20px;display:grid}.learner-grid .selected{border-color:var(--teal)}.learner-grid .stuck{background:#fff0e8}.learner-grid .watch>span{background:#66758a}.learner-grid .ask>span{background:var(--purple)}.student-focus{border-top:1px solid var(--line);background:var(--surface-soft);padding:13px}.student-focus>div:first-child{grid-template-columns:40px 1fr;align-items:center;gap:8px;display:grid}.focus-avatar{color:#fff;background:var(--purple);border-radius:11px;place-items:center;width:38px;height:38px;font-size:9px;font-weight:900;display:grid}.student-focus p{flex-direction:column;margin:0;display:flex}.student-focus small{color:var(--muted);font-size:8px}.focus-actions{grid-template-columns:1fr 1fr;gap:5px;margin-top:9px;display:grid}.focus-actions button{border:1px solid var(--line);background:var(--surface);border-radius:8px;min-height:36px;font-size:8px;font-weight:850}.hint-sent{color:#32500f;background:#eef8d4;border-radius:7px;padding:6px;margin-top:8px!important;font-size:8px!important}.question-queue{border-top:1px solid var(--line);padding:13px}.question-queue article{border-top:1px solid var(--line);padding:9px 45px 9px 0;position:relative}.question-queue article>span{color:var(--teal-dark);font-size:8px}.question-queue article>strong{margin-top:3px;font-size:9px;display:block}.question-queue article>button{background:var(--surface-soft);border-radius:7px;min-width:40px;min-height:32px;font-size:8px;font-weight:850;position:absolute;top:8px;right:0}.gallery-hero{color:#fff;min-height:300px;box-shadow:var(--shadow-lg);background:radial-gradient(circle at 80% 20%,#c9f25f38,#0000 24%),linear-gradient(135deg,#134357,#087b83);border-radius:28px;justify-content:space-between;align-items:center;gap:30px;padding:38px;display:flex}.gallery-hero h1{color:#fff;max-width:850px}.gallery-hero p{color:#d9f5f2;max-width:700px}.gallery-toolbar{justify-content:space-between;align-items:center;gap:15px;margin:16px 0;display:flex}.gallery-filters{border:1px solid var(--line);background:var(--surface);border-radius:13px;gap:5px;padding:4px;display:flex}.gallery-filters button{min-height:38px;color:var(--muted);background:0 0;border-radius:9px;padding:0 12px;font-size:10px;font-weight:850}.gallery-filters .active{color:var(--ink);background:var(--surface-soft)}.gallery-toolbar>label{color:var(--muted);text-transform:uppercase;align-items:center;gap:8px;font-size:9px;font-weight:900;display:flex}.gallery-toolbar input{border:1px solid var(--line);min-height:43px;color:var(--ink);background:var(--surface);border-radius:10px;padding:0 11px}.project-grid{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}.project-card{border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);border-radius:18px;overflow:hidden}.project-visual{background:#dff3eb;height:230px;position:relative;overflow:hidden}.project-visual.purple{background:#ede8ff}.project-visual.orange{background:#fff0de}.project-visual.blue{background:#dfeef8}.project-visual.yellow{background:#f8f4d7}.project-visual.teal{background:#daf1f0}.project-cell{z-index:2;background:var(--surface);width:70px;height:60px;box-shadow:var(--shadow-sm);border:5px solid #00000021;border-radius:15px;place-items:center;font-style:normal;font-weight:900;display:grid;position:absolute}.cell-one{color:#9a541b;background:var(--orange);top:39%;left:15%}.cell-two{color:#49600b;background:var(--lime);top:25%;right:15%}.project-path{z-index:1;border:6px solid var(--cyan);border-top:0;border-radius:0 0 30px 30px;height:70px;position:absolute;top:49%;left:27%;right:25%}.featured-ribbon{z-index:3;color:var(--teal-dark);background:var(--surface);box-shadow:var(--shadow-sm);letter-spacing:.5px;text-transform:uppercase;border-radius:99px;padding:6px 8px;font-size:8px;position:absolute;top:10px;right:10px}.project-copy{padding:17px}.project-copy h2{font-size:19px}.project-copy p{color:var(--muted);font-size:10px}.project-copy>div{align-items:center;gap:5px;display:flex}.project-copy button{background:var(--surface-soft);border-radius:8px;min-height:35px;padding:0 8px;font-size:9px;font-weight:850}.project-copy button:last-child{color:var(--teal-dark);margin-left:auto}.project-copy .liked{color:#a42743;background:#ffe7ec}.community-rules{border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-sm);border-radius:15px;grid-template-columns:40px 1fr auto;align-items:center;gap:13px;margin-top:16px;padding:18px;display:grid}.community-rules>span{font-size:29px}.community-rules p{color:var(--muted);margin:3px 0 0;font-size:10px}.community-rules>button{color:var(--teal-dark);background:var(--surface-soft);border-radius:9px;padding:0 12px;font-size:9px;font-weight:850}.stem-link-button{border:1px solid var(--line);min-height:38px;color:var(--teal-dark);background:var(--surface);box-shadow:var(--shadow-sm);border-radius:10px;margin-top:13px;padding:0 12px;font-size:11px;font-weight:900}.stem-link-button span{margin-left:6px}.stem-hero{color:#fff;min-height:370px;box-shadow:var(--shadow-lg);background:radial-gradient(circle at 82% 17%,#c9f25f3d,#0000 25%),radial-gradient(circle at 13% 110%,#19b8c459,#0000 36%),linear-gradient(135deg,#14384d,#006168 62%,#064957);border-radius:30px;grid-template-columns:1.25fr .75fr;align-items:center;gap:40px;padding:48px;display:grid;position:relative;overflow:hidden}.stem-hero:after{content:"";border:2px solid #ffffff1f;border-radius:50%;width:410px;height:410px;position:absolute;bottom:-170px;right:-90px;box-shadow:0 0 0 34px #ffffff0a,0 0 0 72px #ffffff08}.stem-hero>div{z-index:2;position:relative}.stem-hero h1{color:#fff;max-width:800px;font-size:clamp(42px,5vw,72px)}.stem-hero p{color:#d8f4f2;max-width:720px}.stem-hero>div:first-child>div{align-items:center;gap:14px;margin-top:22px;display:flex}.hero-text-button{color:#fff;background:0 0;font-size:12px;font-weight:900}.stem-stat-grid{grid-template-columns:1fr 1fr;gap:10px;display:grid}.stem-stat-grid button{color:#fff;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);text-align:left;background:#ffffff1a;border:1px solid #ffffff30;border-radius:18px;flex-direction:column;justify-content:center;min-height:116px;padding:17px;display:flex}.stem-stat-grid button:hover{background:#ffffff29;transform:translateY(-2px)}.stem-stat-grid strong{letter-spacing:-2px;font-size:34px;line-height:1}.stem-stat-grid span{color:#d9f5f2;text-transform:uppercase;letter-spacing:.8px;margin-top:7px;font-size:10px;font-weight:900}.stem-tabs{grid-template-columns:repeat(4,1fr);gap:8px;margin:16px 0;display:grid}.stem-tabs button{border:1px solid var(--line);min-height:78px;color:var(--muted);background:var(--surface);box-shadow:var(--shadow-sm);text-align:left;border-radius:15px;grid-template-rows:1fr 1fr;grid-template-columns:42px 1fr;align-items:center;padding:10px 14px;display:grid}.stem-tabs button>span{width:38px;height:38px;color:var(--teal-dark);background:var(--surface-soft);border-radius:11px;grid-row:1/-1;place-items:center;font-size:19px;display:grid}.stem-tabs strong{color:var(--ink);text-transform:capitalize;align-self:end;font-size:12px}.stem-tabs small{align-self:start;font-size:8px}.stem-tabs .active{border-color:var(--teal);background:var(--teal)}@supports (color:color-mix(in lab, red, red)){.stem-tabs .active{background:color-mix(in srgb,var(--teal) 7%,var(--surface))}}.stem-tabs .active{box-shadow:0 10px 28px #00616824}.stem-tabs .active>span{color:#fff;background:var(--teal)}.stem-bench{color:#fff;box-shadow:var(--shadow-lg);background:#112f40;border-radius:25px;overflow:hidden}.chemistry-bench{background:#2e2457}.bench-heading{border-bottom:1px solid #ffffff21;justify-content:space-between;align-items:center;gap:20px;min-height:90px;padding:20px 25px;display:flex}.bench-heading h2{color:#fff;margin-top:7px;font-size:30px}.bench-modes{background:#ffffff12;border:1px solid #ffffff29;border-radius:12px;padding:4px;display:flex}.bench-modes button{color:#d3e4e5;background:0 0;border-radius:9px;min-height:38px;padding:0 12px;font-size:9px;font-weight:900}.bench-modes .active{color:#163238;background:#fff}.bench-body{grid-template-columns:.9fr 1.1fr;min-height:400px;display:grid}.experiment-visual{background-color:#0c2735;background-image:linear-gradient(#429ba21a 1px,#0000 1px),linear-gradient(90deg,#429ba21a 1px,#0000 1px);background-size:25px 25px;place-items:center;min-height:400px;padding:30px;display:grid}.chemistry-visual{background-color:#221b44;background-image:radial-gradient(#ffffff14 1px,#0000 1px);background-size:20px 20px}.experiment-controls{background:#ffffff09;flex-direction:column;justify-content:center;gap:18px;padding:30px;display:flex}.experiment-controls label{color:#d9e7e8;grid-template-columns:1fr auto;gap:7px;font-size:10px;font-weight:850;display:grid}.experiment-controls label strong{color:#fff}.experiment-controls input{width:100%;accent-color:var(--lime);grid-column:1/-1}.result-cards{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.result-cards span{background:#ffffff12;border:1px solid #ffffff26;border-radius:12px;flex-direction:column;justify-content:center;min-height:80px;padding:12px;display:flex}.result-cards small{color:#b7cbcf;text-transform:uppercase;letter-spacing:.6px;margin-bottom:6px;font-size:8px}.result-cards strong{color:#fff;font-size:14px}.ohm-visual{border:7px solid var(--cyan);border-left-color:#0000;border-radius:55px;width:min(420px,90%);height:220px;position:relative}.source-block,.resistor-block{z-index:2;color:#fff;background:var(--orange);text-align:center;border-radius:12px;min-width:72px;padding:17px 10px;font-size:12px;font-weight:900;position:absolute;box-shadow:0 12px 30px #00000047}.source-block{top:70px;left:-18px}.resistor-block{color:#4b3308;background:#f3c570;top:70px;right:-20px}.ohm-visual>b{color:#fff;background:var(--lime);width:54px;height:54px;box-shadow:0 0 45px var(--lime);border:8px solid #dce972;border-radius:50%;place-items:center;display:grid;position:absolute;top:-31px;left:50%}.flow-line:after{content:"●";color:#fff;text-shadow:0 0 12px #fff;animation:stemFlow var(--flow-speed,1.2s) cubic-bezier(.22,1,.36,1) infinite;position:absolute;bottom:-13px;left:12%}.pendulum-visual{flex-direction:column;justify-content:flex-start;align-items:center;height:310px;display:flex}.pendulum-visual:before{content:"";background:#9cc5c5;border-radius:9px;width:240px;height:10px}.pendulum-visual>i{background:var(--cyan);transform-origin:top;width:5px;animation:2.1s ease-in-out infinite alternate pendulumSwing;position:relative}.pendulum-visual>i b{background:var(--lime);border:8px solid #dce972;border-radius:50%;width:58px;height:58px;position:absolute;bottom:-29px;left:50%;transform:translate(-50%);box-shadow:0 13px 20px #0000004d}.pendulum-visual>span{background:#ffffff1a;border-radius:9px;margin-top:auto;padding:7px 10px;font-size:10px;font-weight:850}.wave-visual{width:100%}.wave-visual>div{justify-content:center;align-items:center;gap:3px;height:220px;display:flex}.wave-visual i{background:linear-gradient(var(--lime),var(--cyan));border-radius:99px;width:8px}.wave-visual>span{color:#c7dfe1;text-align:center;font-size:10px;font-weight:850;display:block}.ph-scale{color:#d6d6e7;text-transform:uppercase;grid-template-columns:auto 1fr auto 1fr auto;align-items:center;gap:6px;font-size:8px;display:grid}.ph-scale i{background:linear-gradient(90deg,#e53e3e,#f5c542,#58b856,#327bd0);border-radius:99px;height:5px}.ph-scale i:nth-of-type(2){background:linear-gradient(90deg,#58b856,#327bd0)}.beaker{border:10px solid #ffffffc2;border-top:0;border-radius:0 0 42px 42px;width:210px;height:245px;position:relative;overflow:hidden;box-shadow:inset 0 -14px 30px #ffffff1f,0 20px 40px #00000040}.beaker:before{content:"";z-index:3;background:#fff;border-radius:99px;height:10px;position:absolute;top:0;left:-11px;right:-11px}.beaker>span{opacity:.85;transition:height .25s,background .25s;position:absolute;bottom:0;left:0;right:0}.beaker>i{z-index:2;color:#fff;background:#0000006b;border-radius:9px;padding:8px 11px;font-style:normal;font-weight:900;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.beaker>b{z-index:4;color:#fff;font-size:30px;animation:1.3s ease-in-out infinite breathe;position:absolute;top:13px;left:50%}.titration-track{background:#ffffff26;border-radius:99px;height:11px;margin:14px 0 26px;position:relative}.titration-track i{border-radius:inherit;background:linear-gradient(90deg,#f65a5a,#f0d84a 45%,#4ccf89 55%,#5a74eb);height:100%;display:block}.titration-track b{color:#d5d2ea;font-size:8px;font-weight:850;position:absolute;top:16px;transform:translate(-50%)}.electrolysis-cell{grid-template-columns:1fr auto 1fr;align-items:end;gap:16px;width:min(410px,95%);display:grid}.electrolysis-cell>b{align-self:center;font-size:13px}.tube{border:8px solid #ffffffb8;border-bottom:0;border-radius:28px 28px 0 0;justify-content:center;height:245px;padding-top:16px;font-size:12px;font-weight:900;display:flex;position:relative;overflow:hidden}.tube i{background:linear-gradient(#19b8c4b3,#69e0eee6);min-height:8px;transition:height .25s;position:absolute;bottom:0;left:0;right:0}.tube.right i{background:linear-gradient(#c9f25f8c,#c9f25fe6)}.sensor-bench{border:1px solid var(--line);background:linear-gradient(135deg,var(--surface),var(--canvas));border-radius:25px;grid-template-columns:270px 1fr 220px;align-items:center;gap:28px;min-height:320px;padding:32px;display:grid}@supports (color:color-mix(in lab, red, red)){.sensor-bench{background:linear-gradient(135deg,color-mix(in srgb,var(--surface) 96%,transparent),color-mix(in srgb,var(--canvas) 80%,transparent))}}.sensor-bench{box-shadow:var(--shadow)}.sensor-device{color:#fff;text-align:center;background:#0d2935;border:10px solid #263e52;border-radius:28px;flex-direction:column;justify-content:center;align-items:center;min-height:220px;padding:24px;display:flex;box-shadow:inset 0 0 0 2px #4d7480,0 18px 35px #142d3940}.sensor-device>span{color:#223b10;background:var(--lime);border-radius:99px;align-self:flex-start;padding:4px 7px;font-size:7px;font-weight:950}.sensor-device>i{color:var(--cyan);text-shadow:0 0 25px var(--cyan);margin:15px 0;font-size:48px;font-style:normal}.sensor-device small{color:#a9c6c8;margin-top:6px;font-size:8px}.sensor-readout{flex-direction:column;display:flex}.sensor-readout>strong{color:var(--teal-dark);letter-spacing:-3px;margin:8px 0 3px;font-size:50px}.sensor-readout>small{color:var(--muted)}.sensor-readout label{color:var(--muted);text-transform:uppercase;grid-template-columns:1fr auto;gap:7px;margin-top:25px;font-size:9px;font-weight:900;display:grid}.sensor-readout input{width:100%;accent-color:var(--teal);grid-column:1/-1}.sensor-presets{gap:5px;display:grid}.sensor-presets>span{color:var(--muted);text-transform:uppercase;margin-bottom:3px;font-size:8px;font-weight:900}.sensor-presets button{border:1px solid var(--line);min-height:37px;color:var(--muted);background:var(--surface);text-align:left;border-radius:9px;padding:0 9px;font-size:8px;font-weight:850}.sensor-presets .active{border-color:var(--teal);color:var(--teal-dark);background:var(--teal)}@supports (color:color-mix(in lab, red, red)){.sensor-presets .active{background:color-mix(in srgb,var(--teal) 8%,var(--surface))}}.component-vault-intro{color:#fff;min-height:290px;box-shadow:var(--shadow-lg);background:linear-gradient(135deg,#5b3cc4,#302471);border-radius:25px;grid-template-columns:1fr 1fr;align-items:center;gap:30px;padding:35px;display:grid}.component-vault-intro h2{color:#fff;font-size:35px}.component-vault-intro p{color:#e4def8;max-width:580px}.vault-circuit{border:6px solid #8adfe1;border-left-color:#0000;border-radius:55px;height:190px;position:relative}.vault-circuit>span,.vault-circuit>b,.vault-circuit>em{text-align:center;border-radius:11px;min-width:70px;padding:15px 9px;font-size:10px;font-style:normal;position:absolute}.vault-circuit>span{background:var(--orange);top:62px;left:-15px}.vault-circuit>b{color:#553b0d;background:#f0c776;top:62px;right:-20px}.vault-circuit>em{color:#385008;background:var(--lime);box-shadow:0 0 28px var(--lime);top:-27px;left:50%;transform:translate(-50%)}.catalog-section{border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);border-radius:25px;margin-top:16px;padding:28px}.catalog-heading{justify-content:space-between;align-items:end;gap:25px;margin-bottom:20px;display:flex}.catalog-heading p{color:var(--muted);margin:0;font-size:10px}.catalog-heading>label{color:var(--muted);text-transform:uppercase;flex-direction:column;gap:5px;font-size:8px;font-weight:900;display:flex}.catalog-heading input{border:1px solid var(--line);min-width:270px;min-height:44px;color:var(--ink);background:var(--surface-soft);border-radius:10px;padding:0 12px}.catalog-grid{grid-template-columns:repeat(4,1fr);gap:10px;display:grid}.catalog-card{border:1px solid var(--line);background:var(--surface-soft);border-radius:15px;flex-direction:column;min-height:210px;padding:17px;display:flex}.catalog-icon{justify-content:space-between;align-items:flex-start;display:flex}.catalog-icon>span{color:#fff;background:var(--teal);border-radius:12px;place-items:center;width:42px;height:42px;font-size:20px;display:grid}.catalog-icon>small{color:var(--muted);font-size:8px}.catalog-card>.card-kicker{margin-top:15px;font-size:8px}.catalog-card h3{margin-top:6px;font-size:14px}.catalog-card p{color:var(--muted);margin:3px 0 14px;font-size:9px}.catalog-card>button{width:100%;min-height:36px;color:var(--teal-dark);background:var(--surface);border-radius:9px;margin-top:auto;font-size:8px;font-weight:900}.catalog-card>button.saved{color:#334b0f;background:#eaf5cb}.catalog-more{margin:20px auto 0;display:block}.empty-catalog{text-align:center;padding:55px}.empty-catalog>span{color:var(--teal);font-size:38px}.empty-catalog p{color:var(--muted)}.lab-safety{border:1px solid var(--line);background:var(--surface);border-radius:15px;grid-template-columns:42px 1fr auto;align-items:center;gap:12px;margin-top:16px;padding:17px 20px;display:grid}.lab-safety>span{font-size:29px}.lab-safety p{color:var(--muted);margin:3px 0 0;font-size:9px}.lab-safety>b{color:var(--teal-dark);background:var(--surface-soft);border-radius:99px;padding:7px 10px;font-size:9px}footer{border-top:1px solid var(--line);min-height:70px;color:var(--muted);background:var(--surface);justify-content:space-between;align-items:center;gap:16px;padding:15px 4vw;font-size:11px;display:flex}footer button{min-height:38px;color:var(--teal-dark);background:var(--surface-soft);border-radius:9px;padding:0 12px;font-size:11px;font-weight:850}@keyframes breathe{50%{transform:translateY(-4px)scale(1.018)}}@keyframes nudge{50%{transform:translate(-7px,7px)}}@keyframes headTilt{45%{transform:rotate(-10deg)}}@keyframes point{45%{transform:translate(-8px)rotate(-4deg)}}@keyframes celebrate{to{transform:translateY(-12px)rotate(4deg)}}@keyframes energyFlow{to{background-position:-200% 0}}@keyframes stemFlow{0%{transform:translate(0)}to{transform:translate(255px)}}@keyframes pendulumSwing{0%{rotate:-12deg}to{rotate:12deg}}@keyframes confettiFly{to{transform:translate(calc(cos(var(--angle)) * 420px),calc(sin(var(--angle)) * 340px + 240px)) rotate(720deg);opacity:0}}@media (max-width:1180px){.topbar{grid-template-columns:auto 1fr auto}.main-nav{justify-self:center}.student-stats .streak{display:none}.learning-space{grid-template-columns:minmax(320px,.8fr) minmax(500px,1.2fr)}.progress-card{grid-column:span 4}.next-card{grid-column:span 8}.streak-card{grid-column:span 4}.lessons-card{grid-column:span 8}.badges-card{grid-column:span 7}.leaderboard-card{grid-column:span 5}.teacher-grid{grid-template-columns:repeat(3,1fr)}.teacher-hero,.class-progress{grid-column:span 2}.device.desktop{width:275px}}@media (max-width:940px){.topbar{grid-template-columns:1fr auto}.main-nav{grid-area:2/1/auto/-1;width:100%}.main-nav button{flex:1}.student-stats .utility-button{display:none}.page-wrap{padding-top:24px}.learning-space{grid-template-columns:1fr}.guide-card{position:static}.video-scene{min-height:390px}.lab-note{width:100%}.progress-card,.next-card,.streak-card,.lessons-card,.badges-card,.leaderboard-card{grid-column:span 6}.next-card{grid-row:span 1}.teacher-grid{grid-template-columns:repeat(2,1fr)}.class-progress,.support-card{grid-column:span 2}.design-hero{grid-template-columns:1fr;padding:36px}.design-principles{grid-template-columns:repeat(2,1fr)}.system-grid,.age-access-grid{grid-template-columns:1fr}.device-grid{grid-template-columns:1fr 1fr}.device-grid article:last-child{grid-column:1/-1}}@media (max-width:650px){.page-wrap{width:94vw;padding-bottom:50px}.topbar{gap:8px;padding:9px 14px}.brand span:last-child{display:none}.brand-mark{width:37px;height:37px}.student-stats{gap:5px}.student-stats .xp{padding-inline:8px;font-size:11px}.student-stats .avatar{display:none}.main-nav button{padding:0 7px;font-size:11px}.welcome-row,.lesson-heading{display:block}.role-switch,.mode-switch{width:100%;margin-top:16px}.role-switch button,.mode-switch button{flex:1}.welcome-row h1{font-size:37px}.bento-grid,.teacher-grid{grid-template-columns:1fr;display:grid}.progress-card,.next-card,.streak-card,.lessons-card,.badges-card,.leaderboard-card,.teacher-hero,.metric-card,.class-progress,.support-card{grid-column:1}.progress-card{grid-template-columns:1fr 1fr}.next-card{grid-template-columns:1fr}.next-visual{display:none}.teacher-hero h2{font-size:29px}.class-row{grid-template-columns:100px 1fr 42px;gap:7px}.lesson-progress-card{justify-content:flex-start;overflow-x:auto}.lesson-progress-card>div{flex:none}.lesson-progress-card i{width:22px;margin-inline:6px}.palette{grid-template-columns:repeat(4,minmax(90px,1fr));padding-bottom:6px;overflow-x:auto}.canvas{min-height:340px}.video-scene{min-height:250px}.video-circuit{width:83%;transform:scale(.82)}.video-controls{grid-template-columns:45px 42px 1fr 42px}.video-controls>span,.video-controls button:nth-last-child(2){display:none}.selection-bar{flex-wrap:wrap}.hint-strip{grid-template-columns:1fr}.hint-button{width:100%}.workbench-footer{align-items:center}.attempts{max-width:110px}.check-button{padding-inline:12px}.mascot-card{bottom:10px;right:10px}.byte{border-radius:25px;width:70px;height:70px}.byte-face{height:34px;top:13px;left:11px;right:11px}.byte-bolt{font-size:18px}.speech-bubble{display:none}.celebration-card{padding:30px 20px 22px}.celebration-card h2{font-size:29px}.celebration-actions{flex-direction:column}.design-hero{min-height:auto;padding:28px 23px}.design-hero h1{font-size:40px}.design-principles{grid-template-columns:1fr}.guide-section{padding:22px 16px}.direction-grid,.platform-grid,.device-grid{grid-template-columns:1fr}.device-grid article:last-child{grid-column:1}.decision-note{grid-template-columns:1fr}.motion-table{overflow-x:auto}.motion-table>div{min-width:650px}.mascot-spec{text-align:center;grid-template-columns:1fr}.mood-chips{justify-content:center}.swatches{grid-template-columns:1fr}.device.desktop{width:min(330px,85vw)}.section-heading{grid-template-columns:38px 1fr}.section-number{width:36px;height:36px}footer{text-align:center;flex-direction:column}}@media (max-width:1180px){.parent-hero{grid-column:span 7}.family-progress{grid-column:span 5}.family-controls,.trust-card{grid-column:span 6}.teacher-message{grid-column:span 12}.studio-layout{grid-template-columns:minmax(0,1fr) 260px}.uploaded-video{grid-template-columns:200px 1fr auto}.live-layout{grid-template-columns:minmax(0,1fr) 330px}}@media (max-width:940px){.parent-hero,.family-progress,.family-controls,.trust-card{grid-column:span 12}.parent-hero{grid-template-columns:1.2fr .8fr}.studio-layout,.live-layout{grid-template-columns:1fr}.studio-sidebar,.class-control{position:static}.project-grid{grid-template-columns:1fr 1fr}.gallery-hero{min-height:270px}}@media (max-width:650px){.parent-grid{grid-template-columns:1fr}.parent-hero,.family-progress,.family-controls,.trust-card,.teacher-message{grid-column:1}.parent-hero{grid-template-columns:1fr;padding:23px}.parent-hero h2{font-size:29px}.workspace-heading,.gallery-hero,.gallery-toolbar{display:block}.draft-status,.gallery-hero>button{margin-top:16px}.studio-steps{grid-template-columns:repeat(4,minmax(105px,1fr));overflow-x:auto}.studio-steps button{min-width:105px}.studio-steps small{display:none}.creator-panel{min-height:0;padding:18px 13px}.panel-heading{display:block}.panel-heading>.time-chip,.panel-heading>.difficulty-select{margin-top:10px;display:inline-block}.uploaded-video{grid-template-columns:1fr}.uploaded-video>button{justify-self:start}.video-thumbnail{height:190px}.caption-row{grid-template-columns:1fr 44px}.caption-row time{grid-column:1/-1}.editor-preview{height:220px}.checkpoint-form,.criteria-grid,.assignment-grid{grid-template-columns:1fr}.wide-field{grid-column:1}.challenge-builder{grid-template-columns:145px minmax(300px,1fr);overflow-x:auto}.component-library{max-height:390px}.studio-nav-buttons{grid-template-columns:1fr 1fr}.demo-board{height:330px}.live-battery{left:8%;transform:scale(.8)}.live-bulb{right:8%;transform:scale(.78)}.live-wire{left:23%;right:21%}.broadcast-actions{overflow-x:auto}.broadcast-actions button{flex:none}.poll-options{grid-template-columns:1fr}.learner-grid{grid-template-columns:1fr 1fr}.gallery-hero{padding:26px 21px}.gallery-hero h1{font-size:41px}.gallery-filters{margin-bottom:10px;overflow-x:auto}.gallery-filters button{flex:none}.gallery-toolbar>label{display:grid}.project-grid{grid-template-columns:1fr}.community-rules{grid-template-columns:38px 1fr}.community-rules>button{grid-column:1/-1}.project-visual{height:210px}}@media (max-width:1180px){.stem-hero{grid-template-columns:1.1fr .9fr;padding:38px}.catalog-grid{grid-template-columns:repeat(3,1fr)}.sensor-bench{grid-template-columns:230px 1fr 190px;gap:20px}}@media (max-width:940px){.stem-hero{grid-template-columns:1fr}.stem-stat-grid{grid-template-columns:repeat(4,1fr)}.stem-stat-grid button{min-height:90px}.bench-body{grid-template-columns:1fr}.experiment-visual{min-height:330px}.sensor-bench{grid-template-columns:240px 1fr}.sensor-presets{grid-column:1/-1;grid-template-columns:repeat(3,1fr)}.sensor-presets>span{grid-column:1/-1}.catalog-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:650px){.main-nav{justify-content:flex-start;overflow-x:auto}.main-nav button{white-space:nowrap;flex:none}.stem-link-button{width:100%}.stem-hero{min-height:0;padding:29px 22px}.stem-hero h1{font-size:42px}.stem-hero>div:first-child>div{flex-direction:column;align-items:stretch}.stem-stat-grid{grid-template-columns:1fr 1fr}.stem-stat-grid button{min-height:86px}.stem-stat-grid strong{font-size:27px}.stem-tabs{grid-template-columns:1fr 1fr}.stem-tabs button{min-height:70px;padding:8px}.bench-heading{padding:19px;display:block}.bench-modes{margin-top:12px}.bench-modes button{flex:1}.experiment-visual{min-height:280px;padding:20px}.experiment-controls{padding:22px 16px}.result-cards{grid-template-columns:1fr}.result-cards span{min-height:66px}.ohm-visual{transform:scale(.8)}.pendulum-visual{height:260px;transform:scale(.84)}.wave-visual>div{height:175px}.electrolysis-cell{gap:7px}.electrolysis-cell>b{font-size:8px}.tube{height:205px}.sensor-bench{grid-template-columns:1fr;padding:20px}.sensor-device{min-height:190px}.sensor-readout>strong{font-size:42px}.sensor-presets{grid-column:1;grid-template-columns:1fr 1fr}.sensor-presets>span{grid-column:1/-1}.component-vault-intro{grid-template-columns:1fr;padding:25px 20px}.vault-circuit{height:160px;margin:20px 12px 0}.catalog-section{padding:21px 14px}.catalog-heading{display:block}.catalog-heading>label{margin-top:14px}.catalog-heading input{width:100%;min-width:0}.catalog-grid{grid-template-columns:1fr}.catalog-card{min-height:190px}.lab-safety{grid-template-columns:38px 1fr}.lab-safety>b{text-align:center;grid-column:1/-1}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}}@media (prefers-contrast:more){.site{--line:#6b7c7f}button,.bento-card,.guide-card,.workbench-card,.guide-section{border-width:2px}}html,body{background:var(--paper)}body{font-family:var(--font-geist-sans),Arial,sans-serif;font-size:16px;font-weight:400}.site{background:var(--paper);background-image:none;min-height:100vh}.site h1{letter-spacing:-.02em;margin:4px 0 8px;font-size:30px;font-weight:500;line-height:1.2}.site h2{letter-spacing:-.015em;font-size:24px;font-weight:500;line-height:1.25}.site h3{letter-spacing:-.01em;font-size:19px;font-weight:500;line-height:1.35}.site strong,.site b,.site button{font-weight:500}.site p{max-width:75ch;line-height:1.6}.eyebrow,.card-kicker,.card-label{letter-spacing:.12em;font-size:12px;font-weight:500;line-height:1.4}.page-wrap{width:auto;max-width:1440px;margin:0 auto;padding:48px 56px 80px}.primary-button,.secondary-button,.light-button,.check-button{min-height:36px;box-shadow:none;border-radius:6px;padding:0 16px;font-size:14px}.primary-button,.check-button{background:var(--teal);box-shadow:none}.primary-button:hover,.secondary-button:hover,.light-button:hover,.check-button:hover{box-shadow:none;transform:none}.primary-button:active,.secondary-button:active,.light-button:active,.check-button:active{transform:scale(.98)}.secondary-button{border:1px solid #0f111524}.theme-dark .secondary-button{border-color:#f0efec2e}.ghost-button{min-height:36px;color:var(--ink-soft);background:0 0;border-radius:6px;padding:0 12px;font-size:14px}.ghost-button:hover{background:var(--surface-soft)}.icon-button{background:0 0;border-radius:6px;place-items:center;width:36px;min-width:36px;min-height:36px;display:grid}.icon-button:hover{background:var(--surface-soft)}.site button:focus-visible,.site a:focus-visible,.site input:focus-visible,.site select:focus-visible,.site textarea:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--focus)}@supports (color:color-mix(in lab, red, red)){.site button:focus-visible,.site a:focus-visible,.site input:focus-visible,.site select:focus-visible,.site textarea:focus-visible,[tabindex]:focus-visible{outline:2px solid color-mix(in srgb,var(--focus) 40%,transparent)}}.site button:focus-visible,.site a:focus-visible,.site input:focus-visible,.site select:focus-visible,.site textarea:focus-visible,[tabindex]:focus-visible{outline-offset:2px}.bento-card,.guide-card,.workbench-card,.guide-section,.project-card,.catalog-section,.sensor-bench,.broadcast-stage,.live-poll,.class-control{border:1px solid var(--line);box-shadow:none;background:var(--surface);border-radius:10px}.site input,.site select,.site textarea{border-radius:6px}.app-sidebar{z-index:80;border:0;border-right:1px solid var(--line);background:var(--surface);-webkit-backdrop-filter:none;backdrop-filter:none;flex-direction:column;gap:0;width:240px;height:100vh;min-height:0;padding:16px 12px;display:flex;position:fixed;inset:0 auto 0 0}.brand{border-radius:8px;gap:10px;width:100%;min-height:44px;padding:4px 8px}.brand:hover{background:var(--surface-soft)}.brand-mark{background:var(--teal);width:32px;height:32px;box-shadow:none;border-radius:6px;flex:0 0 32px;font-size:15px;transform:none}.brand>span:last-child{letter-spacing:0;flex-direction:column;align-items:flex-start;font-size:15px;display:flex}.brand small{color:var(--muted);font-size:11px;font-weight:400;line-height:1.3}.main-nav{background:0 0;border:0;border-radius:0;gap:3px;width:100%;margin-top:28px;padding:0;display:grid}.main-nav button{width:100%;min-height:34px;color:var(--ink-soft);text-align:left;background:0 0;border-radius:8px;grid-template-columns:20px 1fr auto;align-items:center;gap:8px;padding:0 10px;font-size:14px;display:grid;position:relative}.main-nav button:hover{background:var(--surface-soft)}.main-nav button:before{content:"";background:var(--teal);border-radius:0 2px 2px 0;width:2px;height:0;transition:height .14s cubic-bezier(.22,1,.36,1);position:absolute;left:-12px}.main-nav .nav-active{color:var(--ink);background:var(--surface-soft);box-shadow:none}.main-nav .nav-active:before{height:34px}.main-nav kbd{color:var(--muted);font-family:var(--font-geist-mono),monospace;font-size:11px;font-weight:400}.student-stats{width:100%;margin-top:auto;display:block}.sidebar-progress{border:1px solid var(--line);background:var(--surface-soft);border-radius:10px;padding:12px}.sidebar-progress>span{color:var(--ink-soft);align-items:center;gap:6px;font-size:12px;display:flex}.sidebar-progress>strong{margin:6px 0;font-size:14px;display:block}.sidebar-progress>i{background:var(--line);border-radius:999px;height:6px;display:block;overflow:hidden}.sidebar-progress b{border-radius:inherit;background:var(--teal);height:100%;transition:width .6s cubic-bezier(.22,1,.36,1);display:block}.sidebar-tools{gap:6px;margin-top:10px;display:flex}.utility-button,.avatar{width:36px;min-width:36px;height:36px;min-height:36px;box-shadow:none;background:0 0;border:0;border-radius:6px}.utility-button:hover,.avatar:hover{background:var(--surface-soft);transform:none}.avatar{color:#fff;background:var(--ink);margin-left:auto}.text-toggle.is-on{background:var(--teal)}#page-content,footer{margin-left:240px}footer{border-top:1px solid var(--line);background:var(--surface);min-height:56px}.precision-page-header{align-items:flex-start;margin:0 0 32px}.precision-page-header p{color:var(--ink-soft);margin:0;font-size:14px}.role-switch{border:1px solid var(--line);background:var(--surface-soft);border-radius:8px;padding:3px}.role-switch button{border-radius:6px;min-height:30px;padding:0 12px;font-size:13px}.role-switch .active{background:var(--surface);box-shadow:var(--shadow-sm)}.metric-strip{border:1px solid var(--line);background:var(--surface);border-radius:10px;grid-template-columns:repeat(4,1fr);display:grid}.metric-strip>div{border-right:1px solid var(--line);flex-direction:column;min-height:112px;padding:20px;display:flex}.metric-strip>div:last-child{border-right:0}.metric-strip span{color:var(--ink-soft);font-size:13px}.metric-strip strong{letter-spacing:-.02em;margin:7px 0 3px;font-size:28px}.metric-strip small{color:var(--muted);font-size:12px}.dashboard-main-grid{grid-template-columns:minmax(0,1fr) 320px;align-items:start;gap:24px;margin-top:24px;display:grid}.learning-region,.roster-region,.recent-evidence{border:1px solid var(--line);background:var(--surface);border-radius:10px;overflow:hidden}.region-heading{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:16px;min-height:74px;padding:16px 20px;display:flex}.region-heading h2{margin:3px 0 0;font-size:19px}.region-heading>div:last-child{gap:8px;display:flex}.region-heading button{align-items:center;gap:8px;display:inline-flex}.learning-table{width:100%}.table-head,.learning-row{grid-template-columns:minmax(220px,1.8fr) 1fr 1fr .8fr 36px;align-items:center;gap:16px;padding:0 20px;display:grid}.table-head{min-height:38px;color:var(--muted);background:var(--surface-soft);font-size:12px}.learning-row{border-top:1px solid var(--line);min-height:68px;font-size:13px}.learning-row:first-of-type{border-top:0}.learning-row:hover{background:var(--surface-soft)}@supports (color:color-mix(in lab, red, red)){.learning-row:hover{background:color-mix(in srgb,var(--surface-soft) 50%,transparent)}}.learning-row>span:first-child{grid-template-rows:1fr 1fr;grid-template-columns:30px 1fr;column-gap:10px;display:grid}.learning-row>span:first-child>i{width:30px;height:30px;color:var(--teal);background:var(--teal);border-radius:6px;grid-row:1/-1;place-items:center;display:grid}@supports (color:color-mix(in lab, red, red)){.learning-row>span:first-child>i{background:color-mix(in srgb,var(--teal) 9%,var(--surface))}}.learning-row small{color:var(--muted);font-size:12px}.learning-row>span:nth-child(3){grid-template-columns:1fr auto;align-items:center;gap:8px;display:grid}.row-progress,.table-progress i{background:var(--line);border-radius:999px;height:6px;display:block;overflow:hidden}.row-progress b,.table-progress i b{border-radius:inherit;background:var(--teal);height:100%;display:block}.learning-row>span:last-child button{background:0 0;border-radius:6px;min-width:30px;min-height:30px}.status-badge,.inline-status{border-radius:999px;align-items:center;width:max-content;min-height:22px;padding:0 8px;font-size:12px;display:inline-flex}.status-completed{color:#0d6244;background:#157f5a1f}.status-in-progress,.status-ready{color:#1f568e;background:#2b6cb01f}.status-locked{color:var(--ink-soft);background:var(--surface-soft)}.next-assignment{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:22px}.assignment-topline{color:var(--muted);justify-content:space-between;font-size:12px;display:flex}.assignment-index{color:var(--teal-dark);font-family:var(--font-geist-mono),monospace;margin:30px 0 8px;font-size:12px;display:block}.next-assignment p{color:var(--ink-soft);font-size:14px}.next-assignment dl{border-top:1px solid var(--line);margin:24px 0}.next-assignment dl>div{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;min-height:40px;font-size:13px;display:flex}.next-assignment dt{color:var(--muted)}.next-assignment dd{margin:0}.next-assignment>button{justify-content:center;align-items:center;gap:8px;width:100%;min-height:44px;display:flex}.recent-evidence{margin-top:24px}.evidence-list>div{border-top:1px solid var(--line);grid-template-columns:24px 1fr auto;align-items:center;gap:10px;min-height:58px;padding:10px 20px;display:grid}.evidence-list>div:first-child{border-top:0}.evidence-list>div>svg{color:var(--teal)}.evidence-list>div>span{flex-direction:column;display:flex}.evidence-list small{color:var(--muted);margin-top:2px;font-size:12px}.evidence-list>div>b{color:var(--ink-soft);font-size:12px}.roster-region{margin-top:24px}.roster-table-wrap{max-height:520px;overflow:auto}.roster-table-wrap table{border-collapse:collapse;width:100%;font-size:13px}.roster-table-wrap thead{z-index:2;background:var(--surface-soft);position:sticky;top:0}.roster-table-wrap th,.roster-table-wrap td{border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;height:50px;padding:0 16px}.roster-table-wrap th{color:var(--muted);font-size:12px;font-weight:500}.roster-table-wrap th button{min-height:30px;color:inherit;background:0 0;padding:0}.roster-table-wrap tbody tr:hover{background:var(--surface-soft)}@supports (color:color-mix(in lab, red, red)){.roster-table-wrap tbody tr:hover{background:color-mix(in srgb,var(--surface-soft) 55%,transparent)}}.roster-table-wrap td:first-child{align-items:center;gap:9px;display:flex}.roster-avatar{color:#fff;background:var(--teal);border-radius:50%;place-items:center;width:30px;height:30px;font-size:10px;display:grid}.table-progress{grid-template-columns:90px auto;align-items:center;gap:8px;display:grid}.inline-status{gap:6px}.inline-status i{background:currentColor;border-radius:50%;width:7px;height:7px}.inline-status.ready{color:#0d6244;background:#157f5a1a}.inline-status.working{color:#1f568e;background:#2b6cb01a}.inline-status.attention{color:#874b08;background:#a35d0b1a}.teacher-insight{background:#a35d0b0f;border:1px solid #a35d0b3d;border-radius:10px;grid-template-columns:24px 1fr auto;align-items:center;gap:12px;margin-top:16px;padding:16px 18px;display:grid}.teacher-insight>svg{color:#a35d0b}.teacher-insight p{color:var(--ink-soft);margin:3px 0 0;font-size:13px}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.learning-space{border:1px solid var(--line);background:var(--surface);border-radius:10px;grid-template-columns:58fr 42fr;gap:0;overflow:hidden}.guide-card,.workbench-card{box-shadow:none;border:0;border-radius:0}.guide-card{border-right:1px solid var(--line)}.guide-card,.workbench-card,.lesson-progress-card{background:var(--surface)}.video-scene,.demo-board{border-radius:0}.palette-card,.part-item,.selection-bar,.hint-strip{box-shadow:none;border-radius:6px}.workspace-heading h1,.lesson-heading h1,.gallery-hero h1,.stem-hero h1{font-size:30px}.workspace-heading p,.lesson-heading p{font-size:14px}.stem-hero,.component-vault-intro,.gallery-hero,.design-hero,.teacher-hero{border:1px solid var(--line);box-shadow:none;background:#0f1115;border-radius:14px}.stem-hero{min-height:310px;color:var(--ink);background:var(--surface);padding:40px}.stem-hero:after{display:none}.stem-hero h1{color:var(--ink)}.stem-hero p{color:var(--ink-soft)}.stem-hero .eyebrow{color:var(--teal-dark)!important}.stem-hero .light-button{color:#fff;background:var(--teal)}.stem-hero .hero-text-button{color:var(--ink-soft)}.stem-stat-grid button{border:1px solid var(--line);min-height:88px;color:var(--ink);background:var(--surface-soft);-webkit-backdrop-filter:none;backdrop-filter:none;border-radius:10px}.stem-stat-grid button:hover{background:var(--surface-soft);border-color:#0f11152e;transform:translateY(-1px)}.stem-stat-grid span{color:var(--ink-soft)}.stem-tabs button{box-shadow:none;border-radius:10px}.stem-bench{border:1px solid var(--line);box-shadow:none;border-radius:10px}.component-vault-intro{color:#fff}.catalog-card{border-radius:10px}.gallery-hero{min-height:220px}.project-card{border-radius:10px}.design-hero{min-height:300px}.guide-section{border-radius:10px}.platform-grid{grid-template-columns:repeat(3,1fr)}.platform-grid article{border-radius:10px}.platform-grid a{color:var(--teal-dark);align-items:center;gap:6px;margin-top:auto;font-size:13px;text-decoration:none;display:inline-flex}.direction-card{box-shadow:none;border-radius:10px}.direction-card.selected-direction{border-color:var(--teal);box-shadow:inset 0 0 0 1px var(--teal)}.direction-card.precision .direction-preview{background:#f4f4f1}.direction-card.atelier .direction-preview{background:#f4eee4}.direction-card.field .direction-preview{background:#262a27}.contrast-table{border:1px solid var(--line);border-radius:10px;overflow:hidden}.contrast-table>div{border-top:1px solid var(--line);grid-template-columns:1fr 120px 90px;align-items:center;min-height:44px;padding:0 16px;font-size:13px;display:grid}.contrast-table>div:first-child{color:var(--muted);background:var(--surface-soft);border-top:0}.contrast-table b{color:#0d6244;align-items:center;gap:5px;display:flex}.judgement-list{grid-template-columns:1fr 1fr;gap:12px;display:grid}.judgement-list article{border:1px solid var(--line);border-radius:10px;padding:20px}.judgement-list p{color:var(--ink-soft);font-size:14px}.judgement-list span{border-top:1px solid var(--line);color:var(--teal-dark);padding-top:12px;font-size:12px;display:block}.mascot-options{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.mascot-options article{border:1px solid var(--line);text-align:center;border-radius:10px;flex-direction:column;align-items:center;min-height:230px;padding:18px;display:flex}.mascot-options article.selected{border-color:var(--teal)}.mascot-options article>span{color:var(--teal-dark);margin-top:12px;font-size:11px}.mascot-options article p{color:var(--muted);font-size:12px}.mascot-glyph,.mascot-cursor{border:1px solid var(--line);width:90px;height:90px;color:var(--teal);background:var(--surface-soft);border-radius:14px;place-items:center;font-size:36px;display:grid}.mascot-glyph span{border:3px solid;border-radius:50%;width:16px;height:16px}.mascot-cursor{position:relative}.mascot-cursor i{border:2px solid var(--teal);border-radius:50% 50% 50% 8px;width:32px;height:48px;transform:rotate(-24deg)}.mascot-cursor b{background:var(--teal);width:18px;height:2px;position:absolute;bottom:18px;right:18px}.expression-sheet{border:1px solid var(--line);border-radius:10px;grid-template-columns:repeat(6,1fr);gap:10px;margin-top:16px;padding:16px;display:grid}.expression-sheet>.card-kicker{grid-column:1/-1}.expression-sheet>div{justify-items:center;gap:6px;display:grid}.expression{border:2px solid var(--ink-soft);border-radius:10px;grid-template-columns:1fr 1fr;place-items:center;width:44px;height:36px;display:grid}.expression b{background:var(--ink);border-radius:50%;width:5px;height:5px}.expression em{border-bottom:2px solid var(--ink);border-radius:50%;grid-column:1/-1;width:13px;height:4px}.expression-1{transform:rotate(-5deg)}.expression-2 em{border-bottom:0;border-top:2px solid var(--ink)}.expression-3 b:first-child{border-radius:0;height:2px}.expression-4{border-color:var(--teal)}.expression-5 b{border-radius:0;height:2px}.state-machine{border:1px solid var(--line);border-radius:10px;flex-wrap:wrap;align-items:center;gap:8px;margin-top:12px;padding:16px;display:flex}.state-machine span{border:1px solid var(--line);background:var(--surface-soft);border-radius:6px;padding:7px 10px;font-size:12px}.state-machine i{color:var(--muted);font-size:11px;font-style:normal}.state-machine i:after{content:" →"}.state-machine b{width:100%;color:var(--ink-soft);font-size:12px}.theme-dark .metric-strip,.theme-dark .learning-region,.theme-dark .roster-region,.theme-dark .recent-evidence,.theme-dark .next-assignment,.theme-dark .stem-hero{background:#191b1a}.theme-dark .status-completed,.theme-dark .inline-status.ready{color:#78d3ac}.theme-dark .status-in-progress,.theme-dark .status-ready,.theme-dark .inline-status.working{color:#8bbce6}.theme-dark .inline-status.attention{color:#e2ad70}.theme-dark .teacher-insight{background:#d6984914;border-color:#d6984952}.theme-dark .student-stats .sidebar-progress{background:#222523}.theme-dark .stem-stat-grid button{color:var(--ink);background:#222523}@media (max-width:1279px){.page-wrap{padding:40px 40px 72px}.learning-space{grid-template-columns:1fr}.guide-card{border-right:0;border-bottom:1px solid var(--line)}.metric-strip{grid-template-columns:1fr 1fr}.metric-strip>div:nth-child(2){border-right:0}.metric-strip>div:nth-child(-n+2){border-bottom:1px solid var(--line)}.dashboard-main-grid{grid-template-columns:1fr}.next-assignment{grid-template-columns:1fr 1fr;column-gap:24px;display:grid}.next-assignment>button{align-self:end}.learning-row,.table-head{grid-template-columns:minmax(210px,1.5fr) .8fr 1fr .8fr 32px}.judgement-list{grid-template-columns:1fr}}@media (max-width:767px){.app-sidebar{border-right:0;border-bottom:1px solid var(--line);grid-template-columns:auto 1fr auto;align-items:center;width:100%;height:auto;min-height:58px;padding:7px 10px;display:grid;position:sticky;inset:0}.brand{width:auto}.brand>span:last-child{display:none}.main-nav{grid-column:auto;gap:2px;margin:0 8px;display:flex;overflow-x:auto}.main-nav button{justify-content:center;width:auto;min-width:36px;padding:0 9px;display:flex}.main-nav button span,.main-nav kbd,.main-nav button:before{display:none}.main-nav .nav-active{color:var(--teal-dark)}.student-stats{width:auto;margin:0}.sidebar-progress,.sidebar-tools .utility-button:first-child,.sidebar-tools .text-toggle,.sidebar-tools .avatar{display:none}.sidebar-tools{margin:0}.sidebar-tools .utility-button{display:grid}.page-wrap{padding:32px 20px 64px}#page-content,footer{margin-left:0}.precision-page-header{display:block}.role-switch{margin-top:16px}.metric-strip{grid-template-columns:1fr 1fr}.metric-strip>div{min-height:96px;padding:16px}.table-head{display:none}.learning-row{grid-template-columns:1fr auto;gap:8px 12px;padding:14px 16px}.learning-row>span:nth-child(2),.learning-row>span:nth-child(3){grid-column:1;margin-left:40px}.learning-row>span:nth-child(4){grid-area:1/2}.learning-row>span:last-child{grid-area:2/2/4}.next-assignment{display:block}.region-heading{align-items:flex-start}.region-heading .secondary-button{font-size:0}.region-heading .secondary-button svg{margin:0}.roster-table-wrap{overflow-x:auto}.roster-table-wrap table{min-width:760px}.teacher-insight{grid-template-columns:24px 1fr}.teacher-insight button{grid-column:1/-1}.stem-hero{padding:24px}.platform-grid,.mascot-options{grid-template-columns:1fr}.expression-sheet{grid-template-columns:repeat(3,1fr)}.contrast-table>div{grid-template-columns:1fr 75px 64px;padding:0 10px}.learning-space{border-inline:0;border-radius:0}.lesson.page-wrap{padding-inline:0}.lesson>.lesson-heading,.lesson>.lesson-progress-card,.lesson>.lab-note{margin-inline:20px}.guide-card{position:relative}.video-scene{z-index:5;position:sticky;top:58px}.palette{z-index:6;border-top:1px solid var(--line);background:var(--surface);padding:8px;position:sticky;bottom:0}}@media (max-width:374px){.page-wrap{padding-inline:16px}.metric-strip{grid-template-columns:1fr}.metric-strip>div{border-right:0;border-bottom:1px solid var(--line)}.metric-strip>div:last-child{border-bottom:0}.main-nav{margin-inline:2px}.main-nav button{padding-inline:7px}.expression-sheet{grid-template-columns:1fr 1fr}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-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}