.demo-workspace:has(.visual-demo){display:block}.visual-demo{background:#fff;border:1px solid #eaf4f3;border-radius:26px;padding:22px;box-shadow:0 8px 32px #2a4d4808}.vm-context{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:20px}.vm-context>span:last-child{font-size:.75rem;color:#75948f}.vm-people{display:flex;justify-content:center;gap:12px;margin-bottom:22px}.vm-person{display:flex;align-items:center;gap:11px;border:1px solid transparent;background:#f6fafa;padding:9px 16px 9px 9px;border-radius:99px;min-width:175px;text-align:left;position:relative;transition:background .3s,border-color .3s,box-shadow .3s}.vm-person[aria-pressed=true]{background:#f2fdfc;border-color:#c2f4ec;box-shadow:0 3px 14px #43c7b312}.vm-person strong,.vm-person small{display:block}.vm-person strong{font-size:1rem;color:#254843}.vm-person small{font-size:.8125rem;color:#6f8c88;margin-top:2px}.vm-portrait{display:block;width:49px;height:49px;flex-shrink:0;border-radius:50%;background-image:url('assets/learner-portraits.webp');background-size:300% 100%;background-position:0 0}.vm-portrait-1{background-position:50% 0}.vm-portrait-2{background-position:100% 0}.vm-speaking{position:absolute;left:46px;bottom:8px;width:10px;height:10px;background:#4adcc6;border:2px solid white;border-radius:50%;opacity:0}.vm-active .vm-speaking{opacity:1}.vm-playing .vm-active .vm-speaking{animation:vm-breathe 1.8s ease-in-out infinite}.vm-stage{max-width:860px;margin:auto;background:radial-gradient(ellipse at 50% 0,#fafefe,#f1faf9);border:1px solid #e8f6f4;border-radius:24px;padding:28px 34px 24px;overflow:hidden}.vm-problem{text-align:center;margin-bottom:22px}.vm-problem>span{font-size:.875rem;color:#688c87}.vm-problem h4{font-size:clamp(1.35rem,2.5vw,1.85rem);letter-spacing:-.045em;line-height:1.2;margin-top:8px}.vm-model{display:block;width:100%;max-width:650px;overflow:visible;margin:auto}.vm-group-label{font-family:var(--font);font-size:14px;fill:#6d948e}.vm-hidden{opacity:0}.vm-dim{opacity:.2}.vm-split .vm-group{animation:vm-copy 1.1s cubic-bezier(.22,1,.36,1) both;animation-delay:var(--delay)}.vm-resolve .vm-group:last-child circle:nth-last-child(-n+2){transform-box:fill-box;transform-origin:center;animation:vm-fill .6s cubic-bezier(.2,1.4,.5,1) both}.vm-resolve .vm-group:last-child circle:last-child{animation-delay:.2s}.vm-legend{display:flex;justify-content:center;gap:22px;margin-top:8px;color:#6d948e;font-size:.8125rem}.vm-legend span{display:flex;align-items:center;gap:7px}.vm-legend i{display:block;width:10px;height:10px;border-radius:3px;background:#b3d8d2}.vm-legend span:last-child i{border-radius:50%;background:#49dcc6}.vm-answer{text-align:center;font-size:clamp(1.3rem,2.6vw,1.85rem);font-weight:600;letter-spacing:-.04em;color:#39b6a3;margin:16px 0 8px;min-height:1.6em}.vm-handoff{font-size:.8125rem;color:#6b9790;text-align:center;min-height:1.6em;margin-bottom:22px}.vm-popup{max-width:560px;margin:0 auto;padding:18px 20px;background:#ffffffef;border:1px solid #fff;border-radius:21px;box-shadow:0 12px 30px #326c6316,0 2px 4px #385f590a;backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px)}.vm-popup-top{display:flex;gap:8px;align-items:center;font-size:.8125rem;color:#6c938d}.vm-popup-top strong{color:#284641;font-weight:650}.vm-popup-top .brand-mark{width:18px;height:18px;gap:2px;transform:none}.vm-popup-top>span:last-child{margin-left:auto;font-size:.8125rem}.vm-popup>p:not(.vm-support-copy){font-size:1.0625rem;line-height:1.5;color:#2c534d;margin-top:12px;min-height:3em}.vm-popup-actions{display:flex;align-items:center;gap:12px;margin-top:16px;flex-wrap:wrap}.vm-popup-actions .demo-button{font-size:.875rem;padding:12px 17px;min-height:44px}.vm-quiet{border:0;background:transparent;color:#5e8f88;font-size:.875rem;padding:10px 12px;min-height:44px;border-radius:99px}.vm-quiet:hover{background:#ecf8f6;color:#388176}.vm-support-copy{background:#effdfb;border-radius:12px;padding:13px;margin-top:14px;font-size:.9375rem;line-height:1.5;color:#417d74;animation:vm-popup .35s ease both}.vm-controls{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:18px}.vm-controls>.vm-quiet{min-width:76px;background:#f4f9f8}.vm-moments{display:flex;gap:4px}.vm-moments button{border:0;background:none;width:44px;height:44px;border-radius:50%;display:grid;place-items:center}.vm-moments i{display:block;width:7px;height:7px;border-radius:99px;background:#cee0de;transition:width .35s,background .35s}.vm-moments [aria-pressed=true] i{width:24px;background:#45d6c0}.vm-controls>span{font-size:.8125rem;color:#70918c;font-variant-numeric:tabular-nums}.vm-footnote{font-size:.75rem;text-align:center;margin-top:12px;color:#799692}.vm-footnote span{margin-left:9px}.vm-arrive{animation:vm-popup .45s cubic-bezier(.22,1,.36,1) both}.demo-shell:has(.visual-demo) .demo-story{display:none}.demo-shell:has(.visual-demo) .demo-toolbar{margin-bottom:18px}.demo-shell:has(.visual-demo) .demo-sample{display:none}.demo-shell:has(.visual-demo) .demo-toolbar:after{display:none}
@keyframes vm-copy{from{transform:translate(184px,0);opacity:.15}to{transform:translate(var(--x),0);opacity:1}}@keyframes vm-fill{from{transform:scale(.1);opacity:0}to{transform:scale(1);opacity:1}}@keyframes vm-popup{from{transform:translateY(12px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes vm-breathe{0%,100%{box-shadow:0 0 0 0 #4adcc622}50%{box-shadow:0 0 0 5px #4adcc622}}
@media(max-width:760px){.visual-demo{padding:14px;border-radius:20px}.vm-context{gap:10px;margin-bottom:15px;flex-wrap:wrap}.vm-context>span:last-child{font-size:.75rem}.vm-people{gap:7px;justify-content:space-between;margin-bottom:16px}.vm-person{min-width:0;flex:1;flex-direction:column;padding:10px 5px;border-radius:17px;text-align:center;gap:6px}.vm-person strong{font-size:.9375rem}.vm-person small{font-size:.75rem;line-height:1.35;min-height:2.7em}.vm-portrait{width:49px;height:49px}.vm-speaking{left:calc(50% + 14px);top:46px;bottom:auto}.vm-stage{padding:21px 10px 13px;border-radius:18px}.vm-problem{margin-bottom:17px}.vm-problem>span{font-size:.8125rem}.vm-problem h4{font-size:1.4rem;max-width:280px;margin:8px auto 0}.vm-model{width:100%}.vm-group-label{font-size:26px}.vm-answer{font-size:1.4rem;margin-top:16px}.vm-handoff{font-size:.75rem;margin-bottom:18px;line-height:1.5}.vm-popup{padding:15px;border-radius:17px}.vm-popup>p:not(.vm-support-copy){font-size:1rem;min-height:4.5em}.vm-popup-actions{gap:5px;margin-top:12px}.vm-popup-actions>.demo-button{width:100%;padding-inline:12px}.vm-popup-actions>.vm-quiet{width:100%;padding:8px;min-height:40px}.vm-controls{gap:5px;margin-top:13px}.vm-moments{gap:0}.vm-moments button{width:34px}.vm-controls>span{font-size:.75rem}.vm-footnote{line-height:1.5}.vm-footnote span{display:block;margin-left:0}.demo-shell:has(.visual-demo) .demo-toolbar{margin-bottom:12px}}
@media(prefers-reduced-motion:reduce){.visual-demo *{animation:none!important;transition:none!important}}

/* The learning island contracts to context and expands to one useful action. */
.vm-island{width:100%;max-width:560px;padding:0;color:#fff;background:linear-gradient(145deg,#233b37,#132522);border:1px solid #ffffff20;border-radius:30px;box-shadow:0 18px 45px #193a3530,inset 0 1px 0 #ffffff18;transition:max-width .5s cubic-bezier(.22,1,.36,1),border-radius .5s,box-shadow .4s;overflow:hidden}
.vm-island.is-collapsed{max-width:330px;border-radius:99px;box-shadow:0 9px 24px #193a3524}
.vm-island-toggle{display:flex;align-items:center;gap:12px;width:100%;min-height:68px;padding:12px 18px;border:0;background:transparent;color:#fff;text-align:left;cursor:pointer}
.vm-island-toggle:hover{background:#ffffff06}.vm-island-toggle .vm-portrait{width:40px;height:40px;box-shadow:0 0 0 1px #ffffff25}
.vm-island-summary{display:flex;flex:1;min-width:0;flex-direction:column;gap:2px}.vm-island-summary strong{font-size:.9375rem;font-weight:600;line-height:1.3}.vm-island-summary>span{font-size:.8125rem;color:#bbdad6;line-height:1.35}
.vm-island-chevron{font-size:1rem;color:#b2d5d0;transition:transform .4s}.is-collapsed .vm-island-chevron{transform:rotate(180deg)}
.vm-island-content{display:grid;grid-template-rows:1fr;opacity:1;transition:grid-template-rows .45s cubic-bezier(.22,1,.36,1),opacity .25s}.is-collapsed .vm-island-content{grid-template-rows:0fr;opacity:0}.vm-island-inner{min-height:0;overflow:hidden;padding-inline:20px}.vm-island-inner>.vm-popup-top{padding-top:14px;border-top:1px solid #ffffff14;color:#a9d0ca}.vm-island-inner .vm-popup-top strong{color:#daf3f0}.vm-island-inner>#vm-prompt{margin:13px 0 0;font-size:1.0625rem;line-height:1.5;color:#f3fdfc;min-height:3em}.vm-island .vm-popup-actions{margin-top:17px;padding-bottom:19px;gap:9px}.vm-island .vm-popup-actions>.vm-quiet{color:#c3ebe5}.vm-island .vm-quiet:hover{background:#ffffff0b}.vm-island .vm-popup-actions>.demo-primary{background:#e7fcf9;border-color:#e7fcf9;color:#298174;box-shadow:0 1px 2px #0002}.vm-island .vm-support-copy{margin:0 0 19px;background:#ffffff0c;color:#dffbf7;border:1px solid #ffffff10}.vm-island-wave{display:flex;align-items:center;gap:3px;height:22px;margin-right:3px}.vm-island-wave i{display:block;width:3px;height:9px;background:#b2f6eb;border-radius:3px}.vm-island-wave i:nth-child(2){height:18px}.vm-playing .vm-island-wave i{animation:island-wave .8s ease-in-out infinite alternate}.vm-island-wave i:nth-child(2){animation-delay:.2s}.vm-island-wave i:nth-child(3){animation-delay:.4s}.vm-island.vm-arrive{animation:none}.vm-island :focus-visible{outline-color:#c3f8f0;outline-offset:-4px}
@keyframes island-wave{from{transform:scaleY(.55)}to{transform:scaleY(1)}}
@media(max-width:760px){.vm-island{border-radius:25px}.vm-island-toggle{padding:12px 15px;gap:10px}.vm-island-inner{padding-inline:17px}.vm-island-inner>#vm-prompt{font-size:1rem;min-height:4.5em}.vm-island .vm-popup-actions{padding-bottom:15px}.vm-island.is-collapsed{max-width:300px}}
@media(prefers-reduced-motion:reduce){.vm-island,.vm-island *{animation:none!important;transition:none!important}}

/* Independent content and conversation islands share the lesson canvas. */
.vm-island-stage{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(280px,1fr);gap:22px;align-items:center;max-width:1120px;background:radial-gradient(ellipse at 40% 50%,#ecfaf8,transparent 70%);border:0;padding:20px 8px 26px;overflow:visible}
.vm-lesson-island{min-width:0;background:#ffffffef;border:1px solid #fff;border-radius:30px;box-shadow:0 15px 45px #274e4815,inset 0 1px 0 #fff;backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);overflow:hidden;transition:border-radius .45s,box-shadow .45s}
.vm-lesson-island.is-collapsed{border-radius:99px;box-shadow:0 8px 25px #274e4815}
.vm-lesson-toggle{display:flex;align-items:center;gap:12px;width:100%;min-height:72px;border:0;background:transparent;padding:15px 20px;text-align:left;color:#2b4d48}
.vm-lesson-toggle:hover{background:#f6fefd80}.vm-lesson-symbol{width:41px;height:41px;border-radius:13px;background:#ebfdfa;color:#46c9b5;display:grid;place-items:center;font-size:1rem;font-weight:650;flex-shrink:0}
.vm-lesson-toggle strong{display:block;font-size:.9375rem;font-weight:650;line-height:1.3}.vm-lesson-toggle small{display:block;font-size:.8125rem;color:#70948f;line-height:1.35;margin-top:3px}.vm-lesson-chevron{margin-left:auto;color:#89ada8;transition:transform .4s}.vm-lesson-island.is-collapsed .vm-lesson-chevron{transform:rotate(180deg)}
.vm-lesson-content{display:grid;grid-template-rows:1fr;opacity:1;transition:grid-template-rows .45s cubic-bezier(.22,1,.36,1),opacity .25s}.vm-lesson-island.is-collapsed .vm-lesson-content{grid-template-rows:0fr;opacity:0}.vm-lesson-inner{overflow:hidden;min-height:0;padding-inline:22px}
.vm-lesson-inner .vm-problem{padding-top:16px;border-top:1px solid #eaf4f3;margin-bottom:22px}.vm-lesson-inner .vm-problem h4{font-size:1.6rem;line-height:1.2}.vm-lesson-inner .vm-problem>span{font-size:.8125rem}.vm-lesson-inner .vm-answer{font-size:1.5rem}.vm-lesson-inner .vm-handoff{font-size:.75rem;margin-bottom:24px}.vm-lesson-inner .vm-group-label{font-size:19px}.vm-island-stage>.vm-island{margin:0;align-self:center}.vm-island-stage .vm-popup-actions{flex-direction:column;align-items:stretch}.vm-island-stage .vm-popup-actions .demo-button{width:100%}.vm-island-stage .vm-island-inner>#vm-prompt{min-height:4.5em}.visual-demo{background:linear-gradient(155deg,#f7fcfb,#f1f9f8);border-color:#fff}.vm-controls{margin-top:8px}
@media(max-width:900px){.vm-island-stage{grid-template-columns:1fr;gap:18px;padding:8px 0 18px;background:none}.vm-lesson-island{width:100%;max-width:690px;margin:auto}.vm-island-stage>.vm-island{justify-self:center;width:100%;max-width:560px}.vm-island-stage>.vm-island.is-collapsed{max-width:330px}.vm-island-stage .vm-island-inner>#vm-prompt{min-height:3em}.vm-lesson-inner .vm-group-label{font-size:17px}.vm-lesson-toggle{min-height:68px}}
@media(max-width:760px){.vm-lesson-island{border-radius:25px}.vm-lesson-toggle{padding:12px 16px}.vm-lesson-inner{padding-inline:13px}.vm-lesson-inner .vm-problem h4{font-size:1.4rem}.vm-lesson-inner .vm-group-label{font-size:26px}.vm-lesson-inner .vm-handoff{margin-bottom:20px}.vm-island-stage{gap:16px}.vm-island-stage .vm-island-inner>#vm-prompt{min-height:4.5em}}
@media(prefers-reduced-motion:reduce){.vm-lesson-island,.vm-lesson-island *{animation:none!important;transition:none!important}}