.deep-teal-demo{background:var(--color-stage);min-height:100dvh;color:var(--color-ink);font-family:var(--font-sans);font-size:.9375rem;line-height:1.65}.deep-teal-demo *{box-sizing:border-box}.deep-teal-demo button,.deep-teal-demo textarea{font:inherit}.deep-teal-demo button{cursor:pointer}.deep-teal-demo button:disabled{cursor:default;opacity:.55}.deep-teal-demo :focus-visible{outline:3px solid var(--color-primary);outline-offset:4px}.deep-teal-demo h1,.deep-teal-demo h2,.deep-teal-demo h3,.deep-teal-demo p{margin:0}.dt-skip{z-index:10;background:var(--color-primary);color:var(--color-primary-foreground);padding:1rem;position:fixed;top:-5rem;left:1rem}.dt-skip:focus{top:1rem}.dt-header{border-bottom:1px solid var(--color-line);align-items:center;gap:2rem;min-height:5.75rem;padding:1.25rem 3rem;display:flex}.dt-wordmark{letter-spacing:-.07em;color:var(--color-primary);font-size:1.35rem;font-weight:700;text-decoration:none}.dt-wordmark>span:first-child{color:var(--color-ink);font-weight:400}.dt-wordmark-period{margin-left:.05em}.dt-header-context{color:var(--color-ink-3);border-left:1px solid var(--color-line);align-items:center;gap:.7rem;padding-left:2rem;font-size:.75rem;display:flex}.dt-demo-label{letter-spacing:.11em;font-size:.625rem;font-weight:600}.dt-header-right{align-items:center;gap:1.5rem;margin-left:auto;display:flex}.dt-save-state{color:var(--color-ink-3);font-size:.75rem}.dt-xp{color:var(--color-primary);background:var(--color-primary-soft);border-radius:var(--radius-control);font-variant-numeric:tabular-nums;padding:.45rem .8rem;font-weight:600}.dt-xp span{font-size:.7rem;font-weight:400}.dt-layout{grid-template-columns:18.5rem minmax(0,1fr);max-width:94rem;margin:0 auto;display:grid}.dt-rail{border-right:1px solid var(--color-line);background:var(--color-chrome);min-height:calc(100dvh - 5.75rem);padding:3.25rem 2.1rem 3rem 3rem}.dt-eyebrow{color:var(--color-primary);letter-spacing:.12em;text-transform:uppercase;font-size:.68rem;font-weight:600;line-height:1.5}.dt-rail-intro h2{letter-spacing:-.04em;margin-top:.8rem;font-size:1.35rem;font-weight:500;line-height:1.4}.dt-rail-intro>p:last-child{color:var(--color-ink-3);margin-top:.75rem;font-size:.78rem}.dt-journey{gap:1.4rem;margin:2.5rem 0;padding:0;list-style:none;display:grid}.dt-journey li{color:var(--color-ink-3);align-items:start;gap:.8rem;display:flex;position:relative}.dt-stage-number{border:1px solid var(--color-line);font-variant-numeric:tabular-nums;background:var(--color-stage);border-radius:50%;flex:0 0 2rem;justify-content:center;align-items:center;width:2rem;height:2rem;font-size:.65rem;display:flex}.dt-journey strong{font-size:.8rem;font-weight:500;display:block}.dt-journey div>span{margin-top:.2rem;font-size:.7rem;display:block}.dt-journey .dt-current-stage{color:var(--color-primary)}.dt-current-stage .dt-stage-number{border-color:var(--color-primary);background:var(--color-primary);color:var(--color-primary-foreground)}.dt-current-stage strong{font-weight:600}.dt-rail-status{border-top:1px solid var(--color-line);padding-top:1.6rem}.dt-rail-status>strong{margin:.5rem 0;font-size:.82rem;font-weight:500;line-height:1.6;display:block}.dt-rail-status>p:not(.dt-eyebrow){color:var(--color-ink-3);font-size:.73rem}.dt-rail-status .dt-simulation-note{border-left:2px solid var(--color-primary);background:var(--color-stage);margin-top:1rem;padding:.65rem}.dt-graph{border-top:1px solid var(--color-line);margin-top:2rem;padding-top:1.2rem;font-size:.75rem}.deep-teal-demo summary{cursor:pointer;color:var(--color-primary);padding:.35rem 0;font-weight:500;list-style:none}.deep-teal-demo summary::-webkit-details-marker{display:none}.deep-teal-demo summary:after{content:"Open";text-underline-offset:.2rem;margin-left:.7rem;font-size:.65rem;font-weight:400;text-decoration:underline}.deep-teal-demo details[open]>summary:after{content:"Close"}.dt-graph>p{margin-top:1rem}.dt-graph dl{margin:1rem 0}.dt-graph dt{color:var(--color-ink-3);font-size:.65rem}.dt-graph dd{margin:0 0 .55rem}.dt-graph ul{gap:1rem;padding:0;list-style:none;display:grid}.dt-graph li strong{font-weight:500;display:block}.dt-graph li span{color:var(--color-ink-3);font-size:.65rem;display:block}.dt-graph-source{overflow-wrap:anywhere;color:var(--color-ink-3);font-size:.6rem}.dt-main{width:100%;min-width:0;max-width:69rem;padding:2.7rem 4.25rem 2rem}.dt-lesson-meta{color:var(--color-ink-3);justify-content:space-between;gap:1rem;padding-bottom:2.3rem;font-size:.7rem;display:flex}.dt-stage-heading{justify-content:space-between;align-items:center;gap:1.5rem;margin-bottom:1.75rem;display:flex}.dt-stage-heading h1{letter-spacing:-.055em;max-width:40rem;margin-top:.65rem;font-size:clamp(1.8rem,3.5vw,2.75rem);font-weight:500;line-height:1.2}.dt-stage-heading h1:focus{outline:none}.dt-item-count{color:var(--color-primary);white-space:nowrap;font-variant-numeric:tabular-nums;font-size:1.25rem}.dt-item-count span{color:var(--color-ink-3);font-size:.75rem}.dt-task-body{max-width:45rem;color:var(--color-ink-2);font-size:1rem;line-height:1.8;margin-bottom:1.8rem!important}.dt-task{min-height:25rem}.dt-protected{border-left:3px solid var(--color-primary);background:var(--color-primary-soft);margin:0 0 1.7rem;padding:1rem 1.25rem;font-size:.8rem}.dt-protected strong{font-weight:500;display:block}.dt-protected span{color:var(--color-ink-2);margin-top:.3rem;display:block}.dt-cue{background:var(--color-chrome);border-radius:var(--radius-panel);margin:0 0 1.7rem;padding:1.2rem 1.5rem}.dt-cue>p:last-child{margin-top:.5rem;font-size:.9rem}.dt-answer{border:none;min-width:0;margin:0;padding:0}.dt-answer legend{margin-bottom:.5rem;padding:0;font-size:1rem;font-weight:500}.dt-response-instruction{color:var(--color-ink-2);margin-bottom:.5rem!important}.dt-fine{color:var(--color-ink-3);font-size:.75rem;line-height:1.7}.dt-sentence{border-block:1px solid var(--color-line);margin:1.6rem 0 2rem;padding:1.4rem 0;font-size:clamp(1.2rem,2.1vw,1.65rem);font-weight:400;line-height:2.4}.dt-word-gap{white-space:nowrap;align-items:baseline;display:inline-flex}.dt-comma-gap{vertical-align:baseline;width:2.75rem;height:2.75rem;color:var(--color-primary);background:0 0;border:1px solid #0000;border-radius:.35rem;justify-content:center;align-items:center;margin:0 .12rem;line-height:1;display:inline-flex;font-size:1.7rem!important}.dt-comma-gap:hover:not(:disabled){background:var(--color-chrome)}.dt-comma-gap[aria-pressed=true]{background:var(--color-primary-soft);border-color:var(--color-primary)}.dt-empty-gap{border-bottom:1px dashed var(--color-ink-mute);width:1rem;height:.65rem;display:block}.dt-comma-gap:disabled{opacity:1!important}.dt-response-actions{flex-wrap:wrap;align-items:center;gap:1.5rem;display:flex}.dt-response-actions>span{max-width:20rem}.dt-button{appearance:none;background:var(--color-primary);color:var(--color-primary-foreground);border:1px solid var(--color-primary);border-radius:var(--radius-control);min-height:3rem;transition:background var(--motion-task);padding:.75rem 1.6rem;font-size:.875rem!important;font-weight:500!important}.dt-button:hover:not(:disabled){background:var(--color-primary-hover)}.dt-secondary{background:var(--color-stage);color:var(--color-primary)}.dt-secondary:hover:not(:disabled){background:var(--color-primary-soft)}.dt-text-button{color:var(--color-primary);text-underline-offset:.25rem;background:0 0;border:none;min-height:2.75rem;padding:.75rem 0;text-decoration:underline;font-size:.8rem!important}.dt-feedback{border-left:3px solid var(--color-line);background:var(--color-chrome);border-radius:0 var(--radius-panel) var(--radius-panel) 0;margin-top:2rem;padding:1.25rem 1.5rem}.dt-feedback-correct{border-left-color:var(--color-fb-correct)}.dt-feedback-retry{border-left-color:var(--color-fb-incorrect)}.dt-feedback h2{margin:.4rem 0 .6rem;font-size:1.1rem;font-weight:500}.dt-feedback>p:last-child{color:var(--color-ink-2);font-size:.875rem}.dt-feedback blockquote{background:var(--color-stage);margin:1rem 0 0;padding:.9rem;font-size:1rem;line-height:1.8}.dt-continue{margin-top:1.5rem}.dt-support-actions{border-top:1px solid var(--color-line);justify-content:space-between;gap:1.5rem;margin-top:2rem;padding-top:.6rem;display:flex}.dt-media video{background:var(--color-chrome);aspect-ratio:16/9;border-radius:var(--radius-panel);width:100%}.dt-player-controls{flex-wrap:wrap;align-items:center;gap:.75rem 1.2rem;margin-top:.8rem;display:flex}.dt-player-controls .dt-button{min-height:2.75rem;padding:.5rem 1rem}.dt-player-time{font-variant-numeric:tabular-nums;color:var(--color-ink-2);font-size:.75rem}.dt-video-progress{appearance:none;background:var(--color-chrome-2);width:100%;height:.3rem;color:var(--color-primary);border:none;margin-top:.6rem;display:block}.dt-video-progress::-webkit-progress-bar{background:var(--color-chrome-2)}.dt-video-progress::-webkit-progress-value{background:var(--color-primary)}.dt-video-progress::-moz-progress-bar{background:var(--color-primary)}.dt-repair-video{margin:0 0 1.5rem}.dt-video-caption{color:var(--color-ink-2);justify-content:space-between;gap:1rem;margin:.85rem 0;font-size:.75rem;display:flex}.dt-video-caption>span:last-child{color:var(--color-ink-3);white-space:nowrap}.dt-media-status{color:var(--color-ink-3);font-size:.65rem;margin-top:.8rem!important}.dt-video-loading{aspect-ratio:16/9;border:1px solid var(--color-line);border-radius:var(--radius-panel);color:var(--color-ink-3);place-items:center;display:grid}.dt-media-error,.dt-error{background:var(--color-chrome);border-left:3px solid var(--color-fb-incorrect);margin-bottom:1.5rem;padding:1.5rem}.dt-media-error h3,.dt-error h2{font-size:1.1rem;font-weight:500}.dt-media-error p,.dt-error p{color:var(--color-ink-2);margin:.6rem 0}.dt-media-error button{margin-top:.6rem}.dt-notice{background:var(--color-primary-soft);border-left:3px solid var(--color-primary);margin-bottom:1.5rem;padding:1rem 1.2rem;font-size:.8rem}.dt-inline-actions{flex-wrap:wrap;gap:1rem;display:flex}.dt-notebook{border:1px solid var(--color-line);border-radius:var(--radius-panel);background:var(--color-chrome);margin-top:1.5rem;padding:1.75rem}.dt-section-heading{justify-content:space-between;align-items:center;gap:1rem;display:flex}.dt-section-heading h3{margin:.35rem 0 .5rem;font-size:1.25rem;font-weight:500}.dt-notebook>p{color:var(--color-ink-2);margin-bottom:1.25rem;font-size:.85rem}.dt-notebook label{margin-top:1.2rem;font-size:.8rem;font-weight:500;display:block}.dt-notebook textarea{resize:vertical;border:1px solid var(--color-chrome-2);border-radius:var(--radius-control);background:var(--color-stage);width:100%;color:var(--color-ink);margin-top:.5rem;padding:.85rem 1rem;font-size:.9rem;font-weight:400;line-height:1.65;display:block}.dt-notebook textarea::placeholder{color:var(--color-ink-3)}.dt-form-footer{align-items:center;gap:1rem;margin-top:1.5rem;display:flex}.dt-history{border-top:1px solid var(--color-line);margin-top:1.5rem;padding-top:.75rem;font-size:.8rem}.dt-history ol{margin:0;padding:0;list-style:none}.dt-history li{border-top:1px solid var(--color-line);margin-top:1rem;padding-top:1rem}.dt-history dt{margin-top:.75rem;font-weight:500}.dt-history dd{white-space:pre-wrap;overflow-wrap:anywhere;color:var(--color-ink-2);margin:.25rem 0 0}.dt-result-grid{border-block:1px solid var(--color-line);grid-template-columns:1fr .8fr 1.4fr;gap:1rem;padding:1.5rem 0;display:grid}.dt-result-grid span{color:var(--color-ink-3);font-size:.75rem;display:block}.dt-result-grid strong{color:var(--color-primary);margin-top:.45rem;font-size:1.15rem;font-weight:500;display:block}.dt-check-history{margin-top:2rem}.dt-check-history h3,.dt-next-session h3,.dt-demo-controls h3{margin-bottom:.6rem;font-size:1.15rem;font-weight:500}.dt-check-history ul{margin:0;padding:0;list-style:none}.dt-check-history li{border-bottom:1px solid var(--color-line);grid-template-columns:1fr auto 10rem;align-items:center;gap:1.25rem;padding:1rem 0;font-size:.75rem;display:grid}.dt-check-history li strong{font-size:.85rem;font-weight:500;display:block}.dt-check-history li div>span{color:var(--color-ink-3)}.dt-check-history li>span:last-child{text-align:right}.dt-next-session{margin-top:2rem}.dt-next-session h3,.dt-demo-controls h3{margin-top:.4rem}.dt-next-session>p:not(.dt-eyebrow),.dt-demo-controls>p:not(.dt-eyebrow){color:var(--color-ink-2);margin-bottom:.75rem;font-size:.85rem}.dt-due-date{color:var(--color-primary)!important;font-size:1rem!important}.dt-quiet-panel{border-left:2px solid var(--color-primary);background:var(--color-primary-soft);padding:1rem;font-size:.85rem;margin-top:1.5rem!important}.dt-demo-controls{border:1px dashed var(--color-ink-mute);border-radius:var(--radius-panel);margin-top:2rem;padding:1.5rem}.dt-demo-controls button{margin-top:.5rem}.dt-footer{border-top:1px solid var(--color-line);color:var(--color-ink-3);flex-wrap:wrap;justify-content:space-between;gap:.5rem 1.5rem;margin-top:3.5rem;padding-top:1.3rem;font-size:.65rem;display:flex}.dt-footer details{width:100%;margin-top:.25rem}.dt-footer details p{max-width:42rem;margin:.6rem 0}.dt-new-learner{width:100%}.dt-new-learner section{background:var(--color-chrome);border-radius:var(--radius-panel);margin-top:.75rem;padding:1rem}.dt-new-learner h3{color:var(--color-ink);font-size:.9rem;font-weight:500}.dt-new-learner p{max-width:40rem;margin:.5rem 0 .75rem;font-size:.8rem}.dt-opening{max-width:50rem;margin:0 auto;padding:7rem 2rem}.dt-opening h1{letter-spacing:-.05em;margin:1rem 0;font-size:clamp(2rem,5vw,3.25rem);font-weight:500;line-height:1.2}.dt-opening>p:not(.dt-eyebrow){color:var(--color-ink-3)}.dt-loading-line{border-top:2px solid var(--color-primary);color:var(--color-ink-3);margin-top:2rem;padding-top:1rem;font-size:.85rem}@media (width>=1500px){.dt-main{padding-left:5rem;padding-right:5rem}}@media (width<=1100px){.dt-header{padding-inline:1.75rem}.dt-layout{grid-template-columns:15.5rem minmax(0,1fr)}.dt-rail{padding:2.5rem 1.5rem}.dt-main{padding:2.5rem 2rem}.dt-header-context{padding-left:1rem}}@media (width<=760px){.dt-header{flex-wrap:wrap;gap:1rem;min-height:5rem;padding:1rem 1.2rem}.dt-wordmark{font-size:1.2rem}.dt-header-context{border:0;gap:.5rem;margin-left:auto;padding-left:0}.dt-header-right{justify-content:space-between;width:100%;margin-left:0}.dt-xp{padding:.2rem .6rem;font-size:.8rem}.dt-layout{flex-direction:column;display:flex}.dt-rail{border-right:none;border-bottom:1px solid var(--color-line);min-height:auto;padding:1.3rem 1.2rem}.dt-rail-intro,.dt-rail-status{display:none}.dt-graph{margin-top:1rem;padding-top:.65rem}.dt-journey{grid-template-columns:repeat(4,1fr);gap:.4rem;margin:0;display:grid}.dt-journey li{flex-direction:column;align-items:flex-start;gap:.35rem}.dt-stage-number{flex-basis:1.7rem;width:1.7rem;height:1.7rem;font-size:.6rem}.dt-journey strong{font-size:.62rem;line-height:1.5}.dt-journey div>span{display:none}.dt-main{padding:1.5rem 1.2rem 2rem}.dt-lesson-meta{flex-wrap:wrap;gap:.2rem;padding-bottom:1.6rem;font-size:.65rem}.dt-stage-heading{margin-bottom:1.3rem}.dt-stage-heading h1{font-size:1.85rem}.dt-item-count{font-size:1rem}.dt-item-count span{font-size:.65rem;display:block}.dt-task{min-height:18rem}.dt-task-body{font-size:.95rem}.dt-response-actions{gap:.8rem}.dt-response-actions .dt-button{width:100%}.dt-sentence{padding:1rem 0;font-size:1.3rem}.dt-comma-gap{width:2.75rem;margin:0}.dt-support-actions{gap:.75rem}.dt-video-caption{flex-direction:column;gap:.2rem}.dt-notebook{padding:1.2rem}.dt-section-heading{flex-direction:column;align-items:start;gap:.3rem}.dt-form-footer{flex-direction:column;align-items:start}.dt-result-grid{grid-template-columns:1fr 1fr}.dt-result-grid>div:last-child{grid-column:1/-1}.dt-check-history li{grid-template-columns:1fr auto;gap:.4rem}.dt-check-history li>span:last-child{text-align:left;grid-column:1/-1}.dt-demo-controls{padding:1.2rem}.dt-demo-controls .dt-button{width:100%}.dt-footer{margin-top:2.5rem}.dt-opening{padding:4rem 1.2rem}}@media (prefers-reduced-motion:reduce){.deep-teal-demo *,.deep-teal-demo :before,.deep-teal-demo :after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@font-face{font-family:"Montserrat Demo 2";font-style:normal;font-weight:400 900;font-display:swap;src:url(/demos/demo-2/montserrat-latin-variable.woff2)format("woff2")}.demo-2-alpha{--alpha-navy:#110068;--alpha-medium:#0d4ad1;--alpha-light:#418be9;--alpha-sky:#00bcff;--alpha-pale:#c8dbf4;--alpha-white:#fff;--alpha-black:#000;--alpha-font:"Montserrat Demo 2", sans-serif;--alpha-gradient:linear-gradient(160deg, var(--alpha-navy) 0%, var(--alpha-medium) 100%);--alpha-logo-width:132px;--alpha-logo-clear-space:calc(var(--alpha-logo-width) * .1);--font-sans:var(--alpha-font);--color-stage:var(--alpha-white);--color-chrome:var(--alpha-pale);--color-chrome-2:var(--alpha-medium);--color-line:var(--alpha-pale);--color-ink:var(--alpha-navy);--color-ink-2:var(--alpha-navy);--color-ink-3:var(--alpha-navy);--color-ink-mute:var(--alpha-navy);--color-primary:var(--alpha-medium);--color-primary-hover:var(--alpha-navy);--color-primary-soft:var(--alpha-pale);--color-primary-foreground:var(--alpha-white);--color-background:var(--alpha-white);--color-foreground:var(--alpha-navy);--color-secondary:var(--alpha-pale);--color-secondary-foreground:var(--alpha-navy);--color-muted:var(--alpha-pale);--color-muted-foreground:var(--alpha-navy);--color-accent:var(--alpha-pale);--color-accent-foreground:var(--alpha-navy);--color-border:var(--alpha-pale);--color-input:var(--alpha-medium);--color-ring:var(--alpha-medium);--color-fb-correct:var(--alpha-medium);--color-fb-incorrect:var(--alpha-navy);--radius-control:.625rem;--radius-panel:.875rem;background:var(--alpha-white);min-height:100dvh;color:var(--alpha-navy);font-family:var(--alpha-font);letter-spacing:-.01em;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}.demo-2-alpha .deep-teal-demo{background:var(--alpha-white);color:var(--alpha-navy);font-family:var(--alpha-font);font-size:1rem;line-height:1.65}.demo-2-alpha :where(button,input,textarea,select){font-family:inherit}.demo-2-alpha ::selection{background:var(--alpha-pale);color:var(--alpha-navy)}.demo-2-alpha .dt-header{isolation:isolate;min-height:7rem;color:var(--alpha-white);background:var(--alpha-gradient);border-bottom:0;gap:clamp(1rem,2.6vw,2.5rem);padding-block:1rem;position:relative}.demo-2-alpha .dt-header:before{content:"";z-index:-1;background:var(--alpha-navy);opacity:.16;clip-path:polygon(19% 0,100% 0,100% 100%,0 100%);pointer-events:none;position:absolute;inset:0 0 0 56%}.demo-2-alpha .alpha-brand{align-items:center;gap:max(1rem, var(--alpha-logo-clear-space));padding:var(--alpha-logo-clear-space);color:var(--alpha-white);flex-shrink:0;text-decoration:none;display:flex}.demo-2-alpha .dt-wordmark>.alpha-brand{color:var(--alpha-white);letter-spacing:0}.demo-2-alpha .alpha-brand-logo{width:var(--alpha-logo-width);flex:none;min-width:72px;height:auto;display:block}.demo-2-alpha .alpha-brand-label{letter-spacing:.015em;max-width:10rem;color:var(--alpha-white);font-size:.78rem;font-weight:700;line-height:1.5;display:block}.demo-2-alpha .dt-header-context{border-color:var(--alpha-pale);color:var(--alpha-white)}.demo-2-alpha .dt-save-state{color:var(--alpha-white)}.demo-2-alpha .dt-demo-label{letter-spacing:.07em;font-size:.7rem;font-weight:700}.demo-2-alpha .dt-xp{color:var(--alpha-navy);background:var(--alpha-pale);font-weight:800}.demo-2-alpha .dt-header :focus-visible{outline-color:var(--alpha-white)}.demo-2-alpha .dt-rail{background:var(--alpha-pale);border-right:0}.demo-2-alpha .dt-rail .dt-eyebrow{color:var(--alpha-navy)}.demo-2-alpha .dt-rail-intro h2{letter-spacing:0;text-transform:uppercase;font-size:1.45rem;font-weight:800;line-height:1.2}.demo-2-alpha .dt-eyebrow{letter-spacing:.08em;font-weight:700}.demo-2-alpha .dt-stage-heading h1,.demo-2-alpha .dt-opening h1{letter-spacing:0;text-transform:uppercase;overflow-wrap:anywhere;font-weight:900;line-height:1.05}.demo-2-alpha .dt-stage-heading h1{font-size:clamp(1.85rem,3.25vw,2.9rem)}.demo-2-alpha .dt-stage-number{border-color:var(--alpha-medium);color:var(--alpha-navy);font-weight:700}.demo-2-alpha .dt-current-stage .dt-stage-number{border-color:var(--alpha-medium);background:var(--alpha-medium);color:var(--alpha-white)}.demo-2-alpha .dt-journey strong,.demo-2-alpha .dt-rail-status>strong,.demo-2-alpha .dt-graph li strong{font-weight:700}.demo-2-alpha .dt-rail-status,.demo-2-alpha .dt-graph{border-top-color:var(--alpha-white)}.demo-2-alpha .dt-rail summary{color:var(--alpha-navy);font-weight:700}.demo-2-alpha .dt-item-count{font-weight:800}.demo-2-alpha .dt-task-body{line-height:1.8}.demo-2-alpha .dt-sentence{border-block-color:var(--alpha-pale);color:var(--alpha-navy);letter-spacing:-.015em}.demo-2-alpha .dt-comma-gap[aria-pressed=true]{color:var(--alpha-navy);border-width:2px}.demo-2-alpha .dt-empty-gap{border-bottom-color:var(--alpha-navy);border-bottom-width:2px}.demo-2-alpha .dt-button{font-weight:700!important}.demo-2-alpha .deep-teal-demo button:disabled{opacity:1}.demo-2-alpha .dt-button:disabled{border-color:var(--alpha-navy);background:var(--alpha-pale);color:var(--alpha-navy);border-style:dashed}.demo-2-alpha .dt-protected,.demo-2-alpha .dt-cue,.demo-2-alpha .dt-notice,.demo-2-alpha .dt-quiet-panel{color:var(--alpha-navy)}.demo-2-alpha .dt-protected strong,.demo-2-alpha .dt-answer legend,.demo-2-alpha .dt-feedback h2,.demo-2-alpha .dt-section-heading h3,.demo-2-alpha .dt-notebook label,.demo-2-alpha .dt-media-error h3,.demo-2-alpha .dt-error h2,.demo-2-alpha .dt-check-history h3,.demo-2-alpha .dt-next-session h3,.demo-2-alpha .dt-demo-controls h3{font-weight:700}.demo-2-alpha .dt-feedback{border-left-width:4px}.demo-2-alpha .dt-feedback-retry,.demo-2-alpha .dt-media-error,.demo-2-alpha .dt-error{border-left-style:dashed}.demo-2-alpha .dt-notebook{border-color:var(--alpha-pale)}.demo-2-alpha .dt-notebook textarea{border-color:var(--alpha-medium)}.demo-2-alpha .dt-result-grid strong{font-weight:800}.demo-2-alpha .dt-video-progress{background:var(--alpha-pale)}.demo-2-alpha .dt-video-progress::-webkit-progress-bar{background:var(--alpha-pale)}.demo-2-alpha .dt-video-progress::-webkit-progress-value{background:var(--alpha-medium)}.demo-2-alpha .dt-video-progress::-moz-progress-bar{background:var(--alpha-medium)}.demo-2-alpha .dt-graph-source,.demo-2-alpha .dt-media-status,.demo-2-alpha .dt-footer{font-size:.72rem}@media (width<=1100px){.demo-2-alpha .alpha-brand{gap:.9rem}.demo-2-alpha .alpha-brand-label{max-width:7rem}.demo-2-alpha .dt-header-context{flex-wrap:wrap;padding-left:1rem}}@media (width<=760px){.demo-2-alpha{--alpha-logo-width:112px}.demo-2-alpha .dt-header{gap:.5rem 1rem;min-height:auto;padding:.5rem 1rem 1rem}.demo-2-alpha .alpha-brand{padding-inline:var(--alpha-logo-clear-space)}.demo-2-alpha .alpha-brand-label{max-width:6rem;font-size:.7rem}.demo-2-alpha .dt-header-context{padding-left:var(--alpha-logo-clear-space);gap:.5rem;margin-left:0;font-size:.7rem}.demo-2-alpha .dt-header-right{padding-inline:var(--alpha-logo-clear-space)}.demo-2-alpha .dt-stage-heading h1{font-size:1.85rem}.demo-2-alpha .dt-journey strong{font-size:.65rem;line-height:1.45}.demo-2-alpha .dt-graph{border-color:var(--alpha-white)}}@media (prefers-reduced-motion:reduce){.demo-2-alpha *,.demo-2-alpha :before,.demo-2-alpha :after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@media (forced-colors:active){.demo-2-alpha .dt-header:before{display:none}.demo-2-alpha .alpha-brand-logo{forced-color-adjust:none;background:var(--alpha-navy)}.demo-2-alpha .dt-button,.demo-2-alpha .dt-comma-gap[aria-pressed=true],.demo-2-alpha .dt-stage-number{border:2px solid buttontext}.demo-2-alpha .dt-header :focus-visible{outline-color:highlight}}.demo-three .deep-teal-demo{background:var(--color-chrome)}.demo-three .dt-header{background:var(--color-primary-hover);color:var(--color-primary-foreground);border-bottom-color:var(--color-primary);padding-inline:max(1.5rem,50% - 34rem)}.demo-three .dt-wordmark,.demo-three .dt-wordmark>span:first-child,.demo-three .dt-header-context,.demo-three .dt-save-state{color:var(--color-primary-foreground)}.demo-three .dt-header-context{border-left-color:var(--color-primary)}.demo-three .dt-header :focus-visible{outline-color:var(--color-primary-foreground)}.demo-three .dt-xp{background:var(--color-primary-soft);color:var(--color-primary-hover)}.demo-three .dt-layout{grid-template-columns:minmax(0,1fr);max-width:72rem;display:grid}.demo-three .dt-rail{border:0;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1.35rem 2rem;min-height:0;padding:1.75rem 2.5rem;display:grid}.demo-three .dt-rail-intro{grid-column:1/-1;align-items:center;gap:1.5rem;display:flex}.demo-three .dt-rail-intro h2{margin:0;font-size:1.1rem;line-height:1.4}.demo-three .dt-rail-intro>p:last-child{margin:0 0 0 auto}.demo-three .dt-journey{grid-column:1/-1;grid-template-columns:repeat(4,minmax(0,1fr));gap:.75rem;margin:0;display:grid}.demo-three .dt-journey li{background:var(--color-stage);border:1px solid var(--color-line);border-radius:var(--radius-control);align-items:center;gap:.75rem;min-width:0;padding:1rem}.demo-three .dt-journey .dt-current-stage{background:var(--color-primary-soft);border-color:var(--color-primary)}.demo-three .dt-stage-number{border-radius:var(--radius-control)}.demo-three .dt-journey strong{font-size:.8rem;line-height:1.5}.demo-three .dt-journey div>span{font-size:.7rem;line-height:1.5;display:block}.demo-three .dt-rail-status{border-top:0;border-left:2px solid var(--color-primary);padding:0 0 0 1rem;display:block}.demo-three .dt-rail-status>strong{margin:.2rem 0}.demo-three .dt-graph{border:0;align-self:start;margin:0;padding:0}.demo-three .dt-graph>summary{align-items:center;min-height:2.75rem;display:flex}.demo-three .dt-graph dl{grid-template-columns:5rem minmax(0,1fr);gap:.25rem .75rem;display:grid}.demo-three .dt-main{background:var(--color-stage);border:1px solid var(--color-line);border-radius:var(--radius-panel);width:calc(100% - 5rem);max-width:60rem;margin:0 auto 2.5rem;padding:2.25rem 2.75rem}.demo-three .dt-lesson-meta{border-bottom:1px solid var(--color-line);margin-bottom:1.75rem;padding-bottom:1.1rem}.demo-three .dt-stage-heading h1{font-size:clamp(1.8rem,3.5vw,2.55rem)}.demo-three .dt-task{min-height:20rem}.demo-three .dt-footer{margin-top:2rem}.demo-three .dt-opening{background:var(--color-stage);border:1px solid var(--color-line);border-radius:var(--radius-panel);width:calc(100% - 3rem);margin-top:2.5rem;padding:3rem}@media (width<=1000px){.demo-three .dt-rail{padding-inline:1.5rem}.demo-three .dt-journey li{gap:.5rem;padding:.8rem}.demo-three .dt-main{width:calc(100% - 3rem);padding:2rem}}@media (width<=760px){.demo-three .dt-header{padding:1rem 1.25rem}.demo-three .dt-rail{grid-template-columns:minmax(0,1fr);gap:1.2rem;padding:1.5rem 1.25rem}.demo-three .dt-rail-intro{flex-wrap:wrap;justify-content:space-between;gap:.65rem 1rem}.demo-three .dt-rail-intro>p:last-child{width:100%;margin:0}.demo-three .dt-journey{grid-template-columns:repeat(2,minmax(0,1fr));gap:.6rem}.demo-three .dt-journey li{flex-direction:row}.demo-three .dt-stage-number{flex-basis:2rem;width:2rem;height:2rem}.demo-three .dt-main{width:calc(100% - 2rem);padding:1.5rem 1.25rem}.demo-three .dt-task{min-height:18rem}.demo-three .dt-opening{width:calc(100% - 2rem);padding:2rem 1.25rem}}@media (prefers-reduced-motion:reduce){.demo-three *,.demo-three :before,.demo-three :after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}