/* ScormIQ demo course.
   Two layers, two shapes: the sample course is square, teal and calm like an LMS window;
   everything that belongs to the tutor is round and carries the launcher's orange ring. */
:root{
  --ink-strong:#34353c;--ink:#585961;--muted:#6b6c75;
  --teal:#2f99a4;--deep:#207781;--deep-dark:#185e68;--teal-soft:#d9ecec;
  --paper:#f3f6f5;--surface:#edf3f1;--line:#d6e0dd;--white:#fff;
  --signal:#ff4d00;--bubble-line:#b7d4d1;--bubble-shadow:0 14px 28px -20px #16555c73;
  --display:Raleway,"Open Sans",Arial,sans-serif;--text:"Open Sans",Arial,sans-serif;
  --gutter:clamp(20px,4vw,56px);
  --accent:var(--signal);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--text);color:var(--ink);background:var(--paper)}
button,a,summary{-webkit-tap-highlight-color:transparent}
button{font:inherit;cursor:pointer}button:disabled{cursor:default;opacity:.35}
a{color:inherit}
button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid var(--deep);outline-offset:4px}
h1:focus{outline:none}
[hidden]{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.ui-icon{width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}

/* Touch: vertical scroll and pinch stay native; course.js handles horizontal swipes. */
.slides-wrapper,#scormiq-chatbot-container{touch-action:pan-y pinch-zoom}
.swipe-hint{display:none}
@media(pointer:coarse){.swipe-hint{display:block;font-size:13px;line-height:1.5;color:var(--muted);margin:18px 0 0}}

/* Header */
.course-header{position:sticky;top:0;z-index:50;background:var(--white);border-bottom:1px solid var(--line)}
.header-main{min-height:64px;padding:8px var(--gutter);display:flex;align-items:center;gap:clamp(12px,1.6vw,28px)}
.brand-group{display:flex;align-items:center;gap:10px}
.brand-logo{display:inline-flex;flex:none}
.brand-symbol{display:block;width:36px;height:36px;object-fit:contain}
.brand{text-decoration:none;font:700 23px/1 var(--display);letter-spacing:-.6px;color:var(--ink-strong)}
.header-audience{display:none}
.resource-nav{display:flex;align-items:center;gap:22px;margin-left:auto}
.resource-nav a{display:inline-flex;align-items:center;gap:5px;min-height:44px;color:var(--deep);font-size:14px;font-weight:600;text-decoration:none;white-space:nowrap}
.resource-nav a:hover{text-decoration:underline;text-underline-offset:4px}
.resource-nav .ui-icon{width:14px;height:14px;stroke-width:2}
.language-nav{display:flex;gap:4px;padding-left:18px;border-left:1px solid var(--line);font-size:13px}
.language-nav a{display:grid;place-items:center;min-width:36px;min-height:32px;text-decoration:none;color:var(--muted);font-weight:600}
.language-nav [aria-current]{color:var(--white);background:var(--deep)}

/* Stage */
.slides-wrapper{width:100%;max-width:1480px;margin:0 auto}
.slide{padding:clamp(28px,5vh,56px) var(--gutter) 28px}
.slide.active{animation:enter .35s ease-out}
@keyframes enter{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.slide-layout{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);align-items:center;gap:clamp(28px,4.5vw,72px)}
.lesson-copy{min-width:0}
.lesson-visual{min-width:0;display:grid;align-items:center;background:var(--surface);padding:28px}

/* The sample course: one window with its own bar. */
.slide.course-example{margin:14px clamp(12px,2.2vw,32px);padding:0;background:var(--white);border:1px solid var(--line);box-shadow:0 22px 44px -34px #16555c66}
.course-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;padding:0 20px;background:#f8fbfa;border-bottom:1px solid var(--line)}
.course-frame-label{display:flex;align-items:center;gap:10px;margin:0;font-size:13px;font-weight:700;color:var(--ink-strong)}
.course-frame-label::before{content:"";width:10px;height:10px;background:var(--teal);flex:none}
.tutor-status{visibility:hidden;display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);white-space:nowrap}
.tutor-ring{width:12px;height:12px;border-radius:50%;border:2px solid var(--signal);background:var(--white);flex:none}
.course-example .slide-layout{padding:clamp(24px,4vh,44px) clamp(20px,3vw,44px) clamp(22px,3.5vh,36px)}
.course-example .lesson-visual{background:var(--surface)}

/* Type */
.eyebrow{margin:0 0 12px;font-size:14px;font-weight:700;line-height:1.4;color:var(--deep)}
h1{margin:0 0 18px;max-width:640px;font:700 clamp(30px,3.1vw,46px)/1.1 var(--display);letter-spacing:-.025em;color:var(--ink-strong);text-wrap:balance;hyphens:manual}
.intro{margin:0 0 24px;max-width:36em;font-size:16px;line-height:1.62;color:var(--ink)}
.visual-label,.question-label{margin:0 0 12px;font-size:13px;font-weight:700;line-height:1.4;color:var(--deep)}
.source{max-width:36em;padding-left:16px;border-left:2px solid var(--teal-soft)}
.source h2{margin:0 0 6px;font-size:13px;font-weight:700;color:var(--ink-strong)}
.source p{margin:0;font-size:13.5px;line-height:1.6;color:var(--muted)}

/* The tutor layer: a sample question is a message waiting to be sent. */
.tutor-mark{display:inline-grid;place-items:center;flex:none;width:24px;height:24px;border-radius:50%;background:var(--white);box-shadow:0 0 0 2px var(--signal)}
.tutor-mark img{display:block;width:16px;height:16px}
.question{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:10px;max-width:36em;margin:0 0 22px;padding:16px 18px 18px;background:var(--white);border:1px solid var(--bubble-line);box-shadow:var(--bubble-shadow);border-radius:18px 18px 18px 4px}
.question-label{display:flex;align-items:center;gap:10px;margin:0;color:var(--ink-strong)}
.question-text{margin:0;font-size:16.5px;line-height:1.5;color:var(--ink-strong);font-weight:600}
.copy-question,.free-chat{display:inline-flex;align-items:center;gap:10px;min-height:44px;max-width:100%;padding:10px 20px 10px 16px;border:0;border-radius:999px;background:var(--deep);color:var(--white);font-size:14px;font-weight:700;text-align:left;transition:background .18s}
.copy-question:hover,.free-chat:hover{background:var(--deep-dark)}
.copy-question .ui-icon,.free-chat .ui-icon{width:18px;height:18px}
.copy-question:focus-visible,.free-chat:focus-visible{outline-color:var(--signal)}
.copy-status{position:fixed;left:50%;bottom:84px;transform:translateX(-50%);max-width:min(560px,calc(100% - 150px));margin:0;padding:12px 18px;border-radius:12px;font-size:14px;line-height:1.45;color:var(--white);background:var(--ink-strong);z-index:10001;box-shadow:0 10px 30px #173c3f40}
.copy-status:empty{display:none}

/* Footer: one row, chapters visible in the progress. */
.course-footer{position:relative;display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;gap:24px;min-height:62px;padding:6px 128px 6px var(--gutter);background:var(--white);border-top:1px solid var(--line)}
.progress-track{position:absolute;top:-1px;left:0;right:0;height:2px;background:transparent}
#progressFill{height:100%;width:10%;background:var(--teal);transition:width .3s ease}
#prevBtn,#nextBtn{display:inline-flex;align-items:center;gap:10px;min-height:44px;padding:0 4px;border:0;background:transparent;font-size:14px;font-weight:700;color:var(--ink)}
#nextBtn{color:var(--deep)}
#nextBtn:not(:disabled):hover .icon-next{transform:translateX(3px)}
.icon-next{transition:transform .18s}
.progress-meta{display:flex;align-items:center;justify-content:center;gap:16px;min-width:0}
#progressLabel{font-size:12px;font-weight:600;color:var(--muted);white-space:nowrap}
#slideDots{display:flex;align-items:center}
.dot{display:grid;place-items:center;min-width:24px;min-height:36px;padding:0 3px;border:0;background:transparent}
.dot::before{content:"";width:18px;height:4px;border-radius:2px;background:#cbd8d4;transition:width .25s,background .25s}
.dot.done::before{background:var(--teal)}
.dot[aria-current=true]::before{width:32px;background:var(--deep)}
.dot:hover::before{background:var(--deep)}
.dot.chapter-start{margin-left:10px}
.corporate-link{display:inline-flex;align-items:center;gap:5px;font-size:12px;color:var(--muted);text-underline-offset:3px}
.corporate-link .ui-icon{width:13px;height:13px;stroke-width:2}

/* Opening: formats flow into the tutor. */
.opening-slide .lesson-visual{background:transparent;padding:0}
.format-visual{width:100%;padding:24px;background:var(--white);border:1px solid var(--line)}
.format-label{margin:0 0 14px;font-size:13px;font-weight:700;color:var(--deep)}
.format-sources{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.format-source{display:flex;flex-direction:column;justify-content:center;gap:5px;min-height:78px;padding:12px 14px;background:var(--surface);border:1px solid transparent}
.format-source strong{font:700 18px/1.15 var(--display);color:var(--ink-strong)}
.format-source span{font-size:12px;line-height:1.3;color:var(--muted)}
.format-pilot{background:var(--white);border:1px dashed #9fbcb7}
.format-paths{display:block;width:100%;height:36px;fill:none;stroke:var(--teal);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.format-tutor{display:flex;align-items:center;gap:14px;padding:14px 18px;border-radius:999px;background:var(--deep);color:var(--white)}
.format-tutor-mark{display:grid;place-items:center;flex:none;width:44px;height:44px;border-radius:50%;background:var(--white);box-shadow:0 0 0 3px var(--signal)}
.format-tutor-mark img{display:block;width:30px;height:30px;object-fit:contain}
.format-tutor strong,.format-tutor div span{display:block}
.format-tutor strong{font:700 19px/1.2 var(--display)}
.format-tutor div span{margin-top:3px;font-size:13px;line-height:1.3;opacity:.9}
.format-note{margin:14px 0 0;font-size:12.5px;line-height:1.5;color:var(--muted)}
.opening-slide .source{border-left-color:var(--teal)}

/* Gear exhibit */
.lesson-visual:has(.gear-lab){background:transparent;padding:0}
.gear-lab{width:100%;padding:16px 22px 14px;background:var(--surface)}
.lab-top{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:13px;font-weight:700;color:var(--deep)}
.motion-toggle{min-height:36px;padding:6px 0;border:0;background:transparent;color:var(--muted);font-size:12px;text-decoration:underline;text-underline-offset:3px}
.lab-canvas{display:block;width:100%;height:215px;overflow:visible}
.lab-axis{stroke:#bdcbc8;stroke-width:1;stroke-dasharray:3 5}
.gear-target{cursor:pointer;outline:none}
.gear-target polygon{fill:var(--teal);stroke:#227985;stroke-width:1.5}
.gear-target.gear-b polygon{fill:var(--ink);stroke:#42434b}
.gear-target:focus-visible polygon,.gear-target[aria-pressed=true] polygon{stroke:var(--signal);stroke-width:3}
.pitch-ring{fill:none;stroke:#ffffff55;stroke-width:1.3}.spoke{stroke:#fff;stroke-width:4;stroke-linecap:round}
.lab-hub{fill:var(--surface);stroke:#ffffff80;stroke-width:2}
.hub-label{font:700 22px var(--display);fill:var(--ink-strong);pointer-events:none}
.contact-point{fill:var(--signal);stroke:var(--surface);stroke-width:2;pointer-events:none}
.lab-readout{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:12px;color:var(--muted)}
.lab-readout strong{display:block;font:400 30px/1.2 var(--text);letter-spacing:-1px;color:var(--ink-strong)}
.lab-readout small{font-size:12px;letter-spacing:0;font-weight:400}
.lab-readout .ratio{text-align:center;font-size:18px;font-weight:700;color:var(--deep)}.ratio small{display:block;font-weight:400}
.lab-equation{margin:12px 0 0;font-size:16px;font-weight:700;color:var(--deep)}
.gear-lab[data-experiment=false] .lab-equation{display:none}
.inspect-hint{margin:12px 0 4px;font-size:12px;font-weight:700;color:var(--deep)}
.part-explanation{min-height:40px;margin:0;font-size:13px;line-height:1.5}
.lab-note{margin:6px 0 0;font-size:11px;line-height:1.5;color:var(--muted)}
.lab-controls{display:grid;grid-template-columns:1fr 140px;gap:30px;align-items:start;margin-top:16px;font-size:12px;font-weight:600}
.lab-controls label,.teeth-control>span{display:block;margin-bottom:8px}
.lab-controls input{width:100%;accent-color:var(--deep);cursor:pointer}
.range-labels{display:flex;justify-content:space-between;font-size:11px}
.teeth-control [role=group]{display:flex;gap:6px}
.teeth-control button{min-width:52px;min-height:38px;border:1px solid var(--line);background:var(--white);color:var(--ink)}
.teeth-control button[aria-pressed=true]{background:var(--deep);color:var(--white);border-color:var(--deep)}
.gear-lab[data-experiment=true] .lab-canvas{height:180px}
.gear-lab[data-experiment=true] .part-explanation{min-height:36px;font-size:12px}

/* Language: the course text and the learner's question side by side. */
.language-visual{display:grid;gap:18px;padding:8px 4px}
.lang-course{padding:20px 22px;background:var(--white);border:1px solid var(--line)}
.lang-course p{margin:0;font-size:15px;line-height:1.6;color:var(--ink)}
.lang-ask{justify-self:end;width:min(100%,400px);padding:18px 22px 20px;background:var(--white);border:1px solid var(--bubble-line);box-shadow:var(--bubble-shadow);border-radius:18px 18px 4px 18px}
.language-caption{display:flex;align-items:center;gap:10px;margin-bottom:10px;font-size:13px;font-weight:700;color:var(--ink-strong)}
.lang-ask p{margin:0;font:600 clamp(22px,2.3vw,30px)/1.25 var(--display);letter-spacing:-.02em;color:var(--ink-strong)}
.lang-ask em{font-style:normal;color:var(--deep)}

/* Formula: the rule, then each step, then the result. */
.formula-visual{padding:8px 12px}
.equation{display:flex;align-items:center;gap:8px;margin:4px 0 22px;font-size:36px;color:var(--ink-strong);white-space:nowrap}
.equation sub{font-size:17px;align-self:flex-end}
.fraction{display:inline-flex;flex-direction:column;text-align:center;font-size:26px;line-height:1.4}
.fraction>span:first-child{border-bottom:2px solid var(--ink-strong)}
.calc-steps{list-style:none;margin:0 0 18px;padding:0;counter-reset:step}
.calc-steps li{display:grid;grid-template-columns:28px auto 1fr;align-items:baseline;gap:12px;padding:12px 0;border-top:1px solid var(--line);counter-increment:step}
.calc-steps li::before{content:counter(step);font-size:13px;font-weight:700;color:var(--deep)}
.calc-term{font-size:22px;font-weight:600;color:var(--ink-strong);white-space:nowrap}
.calc-note{font-size:13px;color:var(--muted)}
.result{margin:0;padding-top:14px;border-top:2px solid var(--deep);font:700 64px/1 var(--display);letter-spacing:-2px;color:var(--deep)}
.result small{font:600 20px var(--text);letter-spacing:0}

/* What the course says, and what it leaves open. */
.limits-visual{padding:4px 8px}
.limits-visual>div{display:grid;grid-template-columns:32px 1fr auto;align-items:center;gap:14px;padding:20px 0;border-bottom:1px solid var(--line);font-size:14px}
.limits-visual>div:last-child{border-bottom:0}
.fact-mark{display:grid;place-items:center;width:28px;height:28px;background:var(--deep);color:var(--white)}
.fact-mark .ui-icon{width:16px;height:16px;stroke-width:3}
.limits-visual strong{font-size:19px;color:var(--ink-strong);white-space:nowrap}
.fact-missing{margin-top:10px;padding:18px 16px!important;background:var(--white);border:1.5px dashed #9fbcb7!important}
.fact-missing .fact-mark{background:transparent;border:1.5px dashed var(--muted);color:var(--muted);font-weight:700}
.limits-visual .unknown{font-size:15px;color:var(--muted)}

/* Video */
.video-figure{margin:0}
.video-figure video{display:block;width:100%;aspect-ratio:16/9;background:var(--surface)}
figcaption{margin-top:12px;font-size:13px;line-height:1.5;color:var(--muted)}
details{margin-top:10px;font-size:14px;line-height:1.6}
summary{cursor:pointer;font-weight:700;color:var(--deep)}
details p{margin-bottom:0;color:var(--muted)}

/* Customer-service cases */
.lesson-visual:has(.claim-visual),.lesson-visual:has(.sika-visual){background:transparent;padding:0}
.claim-visual{width:100%;padding:16px 22px 14px;background:var(--surface)}
.claim-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.claim-kind{margin:0;font-size:13px;font-weight:700;color:var(--deep)}
.claim-replay{min-height:36px;padding:4px 0;border:0;background:transparent;color:var(--deep);font-size:12px;font-weight:700;white-space:nowrap;text-decoration:underline;text-underline-offset:3px}
.claim-replay span{display:inline-block;margin-right:3px;font-size:17px;vertical-align:-1px}
.claim-summary{margin:10px 0 14px;font:700 clamp(19px,2vw,26px)/1.25 var(--display);letter-spacing:-.4px;color:var(--ink-strong)}
.claim-flow{position:relative;isolation:isolate}
.claim-track{position:absolute;left:25px;top:36px;bottom:36px;width:2px;background:var(--teal);opacity:.55}
.claim-parcel{position:absolute;left:6px;top:17px;z-index:2;width:40px;height:40px;pointer-events:none;filter:drop-shadow(0 3px 3px #173c3f35);animation:parcel-route 6s ease-in-out infinite}
.claim-parcel svg{display:block;width:100%;height:100%}
.claim-steps{list-style:none;margin:0;padding:0}
.claim-steps li{height:72px}
.claim-step{display:flex;align-items:center;gap:13px;width:100%;height:72px;padding:6px 8px 6px 70px;border:0;border-top:1px solid var(--line);background:transparent;color:var(--ink);text-align:left;transition:background .18s}
.claim-steps li:last-child .claim-step{border-bottom:1px solid var(--line)}
.claim-step:hover,.claim-step[aria-current=step]{background:var(--white)}
.claim-step[aria-current=step]{box-shadow:inset 3px 0 0 var(--deep)}
.claim-step:focus-visible{position:relative;z-index:3;outline-offset:-4px}
.claim-step span{flex:none;font-size:12px;font-weight:700;color:var(--deep)}
.claim-step strong{font-size:15px;font-weight:600;line-height:1.3;color:var(--ink-strong)}
.claim-flow-detail{min-height:40px;margin:10px 0 0;font-size:12.5px;line-height:1.45;color:var(--muted)}
.claim-flow[data-manual=true] .claim-parcel{animation:none;transform:translateY(var(--parcel-y,0px));transition:transform .35s ease}
@keyframes parcel-route{0%,10%{transform:translateY(0)}33%,43%{transform:translateY(72px)}66%,82%{transform:translateY(144px)}100%{transform:translateY(0)}}

/* Pilot evidence: the scale is shown, not only the number. */
.sika-title-link{text-decoration:underline;text-decoration-color:var(--teal);text-decoration-thickness:3px;text-underline-offset:.14em}
.sika-title-link:hover{color:var(--deep)}
.sika-visual{width:100%;padding:24px 26px 20px;background:var(--white);border:1px solid var(--line)}
.sika-visual .visual-label{margin-bottom:10px}
.sika-count{display:flex;align-items:baseline;gap:20px;padding:0 0 16px;border-bottom:1px solid var(--line)}
.sika-count strong{font:700 clamp(56px,6vw,84px)/1 var(--display);letter-spacing:-3px;color:var(--deep)}
.sika-count span{max-width:220px;font-size:15px;line-height:1.4}
.sika-ratings{margin:0}
.sika-ratings>div{display:grid;grid-template-columns:1fr auto;gap:8px 16px;align-items:baseline;padding:14px 0 12px;border-bottom:1px solid var(--line)}
.sika-ratings dt{font-size:14px;line-height:1.4}
.sika-ratings dd{margin:0;font:700 clamp(23px,2.4vw,30px)/1.1 var(--display);letter-spacing:-.6px;color:var(--ink-strong);white-space:nowrap}
.score-bar{grid-column:1/-1;height:6px;background:linear-gradient(90deg,var(--teal) var(--score),var(--surface) var(--score))}
.sika-note{margin:12px 0 0;font-size:11.5px;line-height:1.45;color:var(--muted)}
.proof-slide .source p{font-size:13px}

/* Closing */
.product-points{list-style:none;margin:0;padding:0}
.product-points li{display:flex;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}
.product-points li:first-child{padding-top:0}.product-points li:last-child{border:0;padding-bottom:0}
.product-points h2{margin:0 0 6px;font:700 20px/1.25 var(--display);letter-spacing:-.3px;color:var(--ink-strong)}
.product-points p{margin:0;font-size:14.5px;line-height:1.5}
.step-number{display:grid;place-items:center;flex:none;width:32px;height:32px;background:var(--deep);color:var(--white);font-size:15px;font-weight:700}
.closing-slide .lesson-visual{padding:26px 28px;background:var(--white);border:1px solid var(--line)}
.portal-address{margin:0 0 20px;padding-bottom:14px;border-bottom:2px solid var(--teal);font-size:14px;font-weight:700;color:var(--deep)}
.meeting-actions{display:flex;flex-direction:column;align-items:flex-start;gap:12px;margin:22px 0 24px}
.meeting-cta{display:inline-flex;align-items:center;gap:16px;min-height:52px;padding:14px 24px;background:var(--deep);color:var(--white);text-decoration:none;font-size:16px;font-weight:700;transition:background .18s}
.meeting-cta:hover{background:var(--deep-dark)}
.contact-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;text-underline-offset:4px}
.contact-link .ui-icon,.meeting-cta .ui-icon{width:17px;height:17px}
.closing-chat{display:grid;grid-template-columns:1fr auto;column-gap:18px;max-width:36em;margin-top:8px;padding:16px 18px;background:var(--white);border:1px solid var(--bubble-line);box-shadow:var(--bubble-shadow);border-radius:18px 18px 18px 4px}
.closing-chat h2{margin:0 0 6px;font:700 17px/1.3 var(--display);color:var(--ink-strong)}
.closing-chat p{margin:0;font-size:13.5px;line-height:1.55}
.closing-chat .free-chat{grid-column:2;grid-row:1/span 2;align-self:center}
.closing-actions{display:flex;align-items:center;margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}
.closing-resources{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%}
.closing-resources>p{margin:0;font-size:14px;font-weight:700;color:var(--ink-strong)}
.course-links{display:flex;flex-wrap:wrap;gap:12px 26px}
.course-links a{display:inline-flex;align-items:center;gap:7px;min-height:36px;color:var(--deep);font-size:14px;font-weight:600;text-underline-offset:4px}
.course-links .ui-icon{width:16px;height:16px}

/* Desktop: the demo is a fixed stage between header and footer. */
@media(min-width:851px){
  body{height:100svh;display:flex;flex-direction:column}
  .course-header{flex-shrink:0}
  .slides-wrapper{flex:1;min-height:0;overflow:auto}
  .slide:not(.course-example){min-height:100%;display:flex;flex-direction:column;justify-content:center}
  .slide.course-example{min-height:calc(100% - 28px);display:flex;flex-direction:column}
  .course-example .slide-layout{flex:1 0 auto}
  .course-footer{flex-shrink:0}
}
/* Laptop height: tighten rhythm, keep every step visible. */
@media(min-width:851px) and (max-height:800px){
  .header-main{min-height:58px;padding-top:4px;padding-bottom:4px}
  .brand-symbol{width:32px;height:32px}
  .slide{padding-top:20px;padding-bottom:18px}
  .slide.course-example{margin-top:10px;margin-bottom:10px;min-height:calc(100% - 20px)}
  .course-bar{min-height:34px}
  .course-example .slide-layout{padding:18px 32px 16px}
  h1{font-size:clamp(28px,2.6vw,36px);margin-bottom:12px}
  .eyebrow{margin-bottom:8px}
  .intro{font-size:15px;line-height:1.55;margin-bottom:14px}
  .question{padding:12px 16px 14px;gap:8px;margin-bottom:14px}
  .question-text{font-size:15.5px;line-height:1.45}
  .copy-question{min-height:40px;padding-top:8px;padding-bottom:8px}
  .source p{font-size:13px;line-height:1.5}
  .course-footer{min-height:54px}
  .gear-lab[data-experiment=true] .lab-canvas{height:150px}
  .gear-lab[data-experiment=true] .lab-controls{margin-top:10px}
  .lab-canvas{height:190px}
  .limits-visual>div{padding:16px 0}
  .result{font-size:56px}
  .calc-steps li{padding:9px 0}
  .equation{margin-bottom:16px}
  .claim-visual{padding-top:12px;padding-bottom:10px}
  .claim-summary{margin:6px 0 10px}
  .meeting-actions{margin:14px 0 16px;gap:8px}
  .closing-chat{padding:12px 16px}
  .closing-actions{margin-top:14px;padding-top:12px}
  .closing-slide .lesson-visual{padding:20px 24px}
  .product-points li{padding:14px 0}
  .sika-visual{padding:18px 22px 16px}
  .sika-ratings>div{padding:10px 0 9px}
  .format-visual{padding:20px}
}

/* Tablet and phone */
@media(max-width:1100px){.header-main{gap:12px}.resource-nav{gap:14px}}
@media(max-width:850px){
  .slide-layout{grid-template-columns:1fr;gap:24px}
  .lesson-copy,.lesson-visual{max-width:650px;width:100%}
  h1{font-size:36px}
  .course-footer{grid-template-columns:auto 1fr auto;grid-template-areas:"prev meta next" "brand brand brand";gap:4px 12px;padding:8px 96px 12px 20px}
  #prevBtn{grid-area:prev}#nextBtn{grid-area:next}.progress-meta{grid-area:meta}.corporate-link{grid-area:brand}
  .progress-meta{flex-direction:column;gap:0}
  .closing-resources,.closing-actions{flex-direction:column;align-items:flex-start;gap:10px}
  .closing-chat{display:block}.closing-chat p{margin-bottom:14px}
  .equation{font-size:30px}
}
@media(max-width:800px){
  .header-main{flex-wrap:wrap;gap:0 10px;padding:6px 16px}
  .header-main .brand-group{order:1}.header-main .language-nav{order:2;margin-left:auto}
  .header-main .resource-nav{order:3;width:100%;justify-content:flex-start;gap:18px;margin:0}
  .resource-nav a{min-height:36px;font-size:13px}.resource-nav .ui-icon{display:none}
}
@media(max-width:600px){
  .course-footer{grid-template-columns:1fr auto;grid-template-areas:"prev next" "meta meta" "brand brand";padding:8px 88px 12px 16px}
  .progress-meta{flex-direction:row;justify-content:flex-start;gap:10px}
}
@media(max-width:520px){
  .brand{font-size:21px}.brand-symbol{width:32px;height:32px}
  .slide{padding:26px 18px 24px}
  .slide.course-example{margin:8px}
  .course-bar{padding:0 12px;min-height:36px}
  .course-frame-label{font-size:12px}.tutor-status{font-size:11px}
  .course-example .slide-layout{padding:24px 16px 20px}
  h1{font-size:30px;letter-spacing:-.02em}
  .intro{font-size:15px}
  .lesson-visual{padding:20px}
  .question{padding:14px 14px 16px}
  .question-text{font-size:15.5px}
  .lesson-copy .copy-question{max-width:calc(100% - 56px)}
  .copy-status{bottom:150px;max-width:calc(100% - 32px)}
  .dot{min-width:18px;padding:0 2px}.dot::before{width:12px}.dot[aria-current=true]::before{width:20px}.dot.chapter-start{margin-left:6px}
  #progressLabel{font-size:11px}
  .gear-lab{padding:14px}.lab-canvas{height:220px}.lab-readout strong{font-size:25px}
  .lab-controls{gap:18px;grid-template-columns:1fr 120px}.part-explanation{min-height:60px}
  .format-visual{padding:14px}.format-source{padding:8px;min-height:68px}.format-source strong{font-size:14px}.format-source span{font-size:11px}
  .format-tutor{padding:10px 14px}.format-tutor strong{font-size:16px}.format-tutor-mark{width:36px;height:36px}.format-tutor-mark img{width:24px;height:24px}
  .lang-course,.lang-ask{padding:14px 16px}.lang-ask p{font-size:21px}
  .calc-steps li{grid-template-columns:22px 1fr;gap:4px 10px}.calc-note{grid-column:2}.calc-term{font-size:19px}
  .result{font-size:50px}
  .limits-visual>div{grid-template-columns:28px 1fr;gap:6px 12px}.limits-visual strong{grid-column:2;font-size:17px}
  .claim-visual{padding:14px}.claim-head{flex-wrap:wrap;gap:8px}.claim-summary{font-size:21px}
  .claim-step{gap:9px;padding-left:64px}.claim-step strong{min-width:0;font-size:14px;overflow-wrap:anywhere}
  .sika-visual{padding:16px}.sika-count{gap:12px}.sika-count span{font-size:13px}
  .sika-ratings>div{grid-template-columns:1fr auto}.sika-ratings dt{font-size:13px}.sika-ratings dd{font-size:22px}.sika-note{padding-right:50px}
  .closing-slide .lesson-visual{padding:18px}
  .product-points li{gap:14px}.product-points h2{font-size:18px}.product-points p{font-size:14px}
  .meeting-cta{font-size:15px;padding:13px 18px}
}
@media(max-width:360px){
  .format-sources{grid-template-columns:1fr}
  .format-source{flex-direction:row;align-items:center;justify-content:space-between;min-height:40px;padding:6px 10px}
  .format-source span{text-align:right}
  .format-paths{display:none}
  .format-sources::after{content:"";justify-self:center;width:1px;height:12px;background:var(--teal)}
  .tutor-status{display:none}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Product slides speak louder than course slides. */
.slide:not(.course-example) h1{font-size:clamp(34px,3.8vw,56px);max-width:12em}
.claim-summary,.lang-ask p,.product-points h2{text-wrap:balance}
.closing-chat{display:block}
.closing-chat p{margin-bottom:12px}

/* The one orchestrated moment: on arrival, the course formats connect to the tutor. */
.opening-slide.active .format-source{animation:rise .5s ease-out both}
.opening-slide.active .format-source:nth-child(2){animation-delay:.12s}
.opening-slide.active .format-source:nth-child(3){animation-delay:.24s}
.opening-slide.active .format-paths path:not(.flow){stroke-dasharray:300;animation:draw .7s .45s ease-in-out both}
.opening-slide.active .format-tutor{animation:rise .5s 1s ease-out both}
.opening-slide.active .format-tutor-mark{animation:ring 1.2s 1.4s ease-out both}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes draw{from{stroke-dashoffset:300}to{stroke-dashoffset:0}}
@keyframes ring{0%{box-shadow:0 0 0 3px var(--signal),0 0 0 3px #ff4d0060}100%{box-shadow:0 0 0 3px var(--signal),0 0 0 18px #ff4d0000}}
@media(min-width:851px) and (max-height:800px){.slide:not(.course-example) h1{font-size:clamp(32px,3.4vw,46px)}}
@media(max-width:520px){.slide:not(.course-example) h1{font-size:32px}}
@media(prefers-reduced-motion:reduce){.opening-slide.active .format-paths path:not(.flow){stroke-dasharray:none}}
/* The slide counter drops below the dots when a phone is too narrow for both. */
@media(max-width:360px){.progress-meta{flex-wrap:wrap;row-gap:0}}

/* ---------- Motion and visual layer ---------- */
/* A faint drafting grid: the demo is a technical exhibit, not a landing page. */
body{background:radial-gradient(circle,#cddad6 1px,transparent 1.3px) 0 0/22px 22px,var(--paper)}
.slide.course-example{background:var(--white)}

/* Direction-aware slide change; copy leads, the exhibit follows. */
.slide.active{animation:slide-forward .5s cubic-bezier(.2,.75,.2,1) both}
body[data-direction=back] .slide.active{animation-name:slide-back}
.slide.active .lesson-copy{animation:settle .55s .05s cubic-bezier(.2,.75,.2,1) both}
.slide.active .lesson-visual{animation:settle .6s .14s cubic-bezier(.2,.75,.2,1) both}
@keyframes slide-forward{from{opacity:0;transform:translateX(34px)}to{opacity:1;transform:none}}
@keyframes slide-back{from{opacity:0;transform:translateX(-34px)}to{opacity:1;transform:none}}
@keyframes settle{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@keyframes pop{0%{opacity:0;transform:scale(.4)}70%{transform:scale(1.12)}100%{opacity:1;transform:none}}

/* Tutor bubble: the icon nudges toward the chat on hover; a sent copy flies into it. */
.copy-question:hover .ui-icon,.free-chat:hover .ui-icon{transform:translate(2px,-2px)}
.copy-question .ui-icon,.free-chat .ui-icon{transition:transform .2s}
.question-ghost{position:fixed;z-index:10002;margin:0;pointer-events:none;transform-origin:center;box-shadow:0 18px 40px -12px #16555c80}
.slide.active .question{animation:settle .5s .25s cubic-bezier(.2,.75,.2,1) both}

/* Opening: data flows from every format into the tutor. */
.format-paths path{vector-effect:non-scaling-stroke}
.format-paths .flow{stroke:var(--deep);stroke-width:3.5;stroke-dasharray:1 17;opacity:0}
.opening-slide.active .format-paths .flow{animation:flow-in .3s 1.3s both,flow 1.1s 1.3s linear infinite}
@keyframes flow{to{stroke-dashoffset:-18}}
@keyframes flow-in{to{opacity:1}}

/* Language: the course fact, a link, then the French question assembling. */
.language-visual{gap:0}
.lang-course mark{padding:1px 3px;color:var(--ink-strong);font-weight:700;background:linear-gradient(var(--teal-soft),var(--teal-soft)) 0 0/100% 100% no-repeat}
.slide.active .lang-course mark{animation:highlight .6s .55s ease-out both}
@keyframes highlight{from{background-size:0 100%}to{background-size:100% 100%}}
.lang-link{position:relative;justify-self:end;width:2px;height:34px;margin-right:clamp(60px,12%,120px);background:repeating-linear-gradient(to bottom,var(--teal) 0 4px,transparent 4px 8px)}
.lang-link::after{content:"";position:absolute;left:-4px;top:0;width:10px;height:10px;border-radius:50%;background:var(--deep)}
.slide.active .lang-link::after{animation:travel 1.8s .9s ease-in-out infinite}
@keyframes travel{0%{top:-4px;opacity:0}15%{opacity:1}85%{opacity:1}100%{top:28px;opacity:0}}
.assemble .word{display:inline-block}
.slide.active .assemble .word{animation:rise .35s calc(1s + var(--i) * .11s) cubic-bezier(.2,.75,.2,1) both}

/* Formula: the tooth counts as strips, then each step, then the result. */
.tooth-compare{display:grid;gap:7px;margin:0 0 16px}
.tooth-compare div{display:grid;grid-template-columns:18px 1fr 28px;align-items:center;gap:10px;font-size:13px;font-weight:700}
.tooth-compare i{display:block;height:14px;width:calc(var(--n) * 2.9%);background:repeating-linear-gradient(90deg,var(--teal) 0 60%,transparent 60% 100%) 0 0/calc(100% / var(--n)) 100%;transform-origin:left}
.tooth-compare div+div i{background-image:repeating-linear-gradient(90deg,var(--ink) 0 60%,transparent 60% 100%)}
.tooth-compare b{color:var(--ink-strong);font-weight:700}
.tooth-compare p{margin:2px 0 0 28px;font-size:12.5px;color:var(--muted)}
.slide.active .tooth-compare i{animation:grow .8s .35s cubic-bezier(.3,.7,.2,1) both}
.slide.active .tooth-compare div+div i{animation-delay:.55s}
@keyframes grow{from{transform:scaleX(0)}to{transform:none}}
.slide.active .calc-steps li{animation:rise .45s 1.05s both}
.slide.active .calc-steps li+li{animation-delay:1.35s}
.slide.active .result{animation:rise .45s 1.65s both}

/* Missing information: facts check off, then the tutor ring marks the gap. */
.slide.active .fact-known .fact-mark{animation:pop .4s .45s both}
.slide.active .fact-known+.fact-known .fact-mark{animation-delay:.7s}
.slide.active .fact-missing{animation:rise .45s 1s both}
.slide.active .fact-missing .fact-mark{animation:gap-ring 1.1s 1.5s ease-out 2}
@keyframes gap-ring{0%{box-shadow:0 0 0 0 #ff4d00}100%{box-shadow:0 0 0 14px #ff4d0000}}
.fact-missing .fact-mark{border-radius:50%;border-color:var(--signal);color:var(--signal)}

/* Pilot: bars fill to their share of 10. */
.score-bar{position:relative;background:var(--surface)}
.score-bar::after{content:"";position:absolute;inset:0 auto 0 0;width:var(--score);background:var(--teal);transform-origin:left}
.slide.active .score-bar::after{animation:grow .9s cubic-bezier(.3,.7,.2,1) both}
.slide.active .sika-ratings>div:nth-child(1) .score-bar::after{animation-delay:.4s}
.slide.active .sika-ratings>div:nth-child(2) .score-bar::after{animation-delay:.55s}
.slide.active .sika-ratings>div:nth-child(3) .score-bar::after{animation-delay:.7s}

/* Closing: the three portal steps arrive in order along a line. */
.product-points{position:relative}
.portal-visual .product-points::before{content:"";position:absolute;left:15px;top:32px;bottom:32px;width:2px;background:var(--teal-soft);transform-origin:top}
.portal-visual .step-number{position:relative;z-index:1}
.slide.active .portal-visual .product-points::before{animation:grow-down .9s .3s ease-out both}
@keyframes grow-down{from{transform:scaleY(0)}to{transform:none}}
.slide.active .product-points li{animation:rise .45s .35s both}
.slide.active .product-points li:nth-child(2){animation-delay:.55s}
.slide.active .product-points li:nth-child(3){animation-delay:.75s}

/* Opening hero: the brand panel, where course formats feed the tutor. */
.opening-slide .format-visual{position:relative;overflow:hidden;padding:30px 30px 26px;border:0;color:var(--white);background:radial-gradient(120% 90% at 85% 110%,#2f99a455,transparent 60%),linear-gradient(160deg,#227f89,#174f57)}
.opening-slide .format-visual::before{content:"";position:absolute;inset:0;background:radial-gradient(circle,#ffffff1f 1px,transparent 1.3px) 0 0/18px 18px;pointer-events:none}
.opening-slide .format-visual>*{position:relative}
.opening-slide .format-label{color:#bfe3e3}
.opening-slide .format-source{min-height:96px;padding:14px 16px;background:#ffffff14;border:1px solid #ffffff2e;backdrop-filter:blur(2px)}
.opening-slide .format-pilot{background:transparent;border:1px dashed #ffffff66}
.opening-slide .format-source strong{color:var(--white)}
.opening-slide .format-source span{color:#cde8e7}
.format-icon{display:block;width:26px;height:26px;margin-bottom:6px}
.format-icon svg{display:block;width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.opening-slide .format-source .format-icon{color:#9fd6d6}
.opening-slide .format-paths{height:42px;stroke:#ffffff59}
.opening-slide .format-paths .flow{stroke:var(--white)}
.opening-slide .format-tutor{background:var(--white);color:var(--ink-strong);box-shadow:0 18px 40px -18px #0009}
.opening-slide .format-tutor div span{color:var(--muted);opacity:1}
.opening-slide .format-note{color:#cde8e7}
.opening-slide.active .format-tutor-mark{animation:ring 1.4s 1.4s ease-out 3 both}
@media(min-width:851px) and (max-height:800px){.opening-slide .format-visual{padding:24px}.opening-slide .format-source{min-height:84px}}
@media(max-width:520px){.opening-slide .format-visual{padding:16px}.opening-slide .format-source{min-height:74px;padding:8px}.format-icon{width:20px;height:20px}}
@media(max-width:360px){.format-icon{display:none}}
/* Desktop hides the sideways entrance's transient offset. Phones enter vertically instead,
   so real content overflow stays measurable there. */
@media(min-width:851px){.slides-wrapper{overflow-x:hidden;overflow-y:auto}}
@media(max-width:850px){.slide.active,body[data-direction=back] .slide.active{animation-name:settle}}
/* The status appears only once the hosted tutor has actually loaded. */
body.tutor-ready .tutor-status{visibility:visible}