/* Le laboratoire de poche : une expérience lisible, au clavier et au toucher. */
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*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-padding-top:24px}
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a{color:var(--green);text-underline-offset:4px}
button,input,select,textarea{font:inherit}
button,a,input,summary,select{touch-action:manipulation}
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button,.button{cursor:pointer;font-weight:650}
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.skip{position:absolute;top:-100px;left:12px;z-index:5;background:white;padding:12px}
.skip:focus{top:10px}
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.lab-brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:750}
.lab-brand img{width:48px;height:auto}
.lab-header nav{display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.lab-header nav a{padding:10px 0;min-height:44px}
main{max-width:1184px;margin:auto;padding:38px 28px 70px}
.eyebrow{font-size:.76rem;font-weight:750;letter-spacing:.11em;text-transform:uppercase;color:var(--green)}
h1,h2,h3{line-height:1.15;margin:0 0 16px;font-family:Georgia,serif;letter-spacing:-.025em}
h1{font-size:clamp(2.2rem,5vw,3.8rem);max-width:800px}
h2{font-size:clamp(1.6rem,3vw,2rem)}
h3{font-size:1.35rem}
p{margin:0 0 16px}
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figure{margin:0}
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.water-right{animation:water-right 2.6s linear infinite}
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@keyframes water-right{from{transform:translateX(-55px)}to{transform:translateX(55px)}}
@keyframes water-left{from{transform:translateX(55px)}to{transform:translateX(-55px)}}
.lab-controls{padding:20px;border:1px solid var(--line);border-radius:16px;background:#fbfcf9}
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output{font-variant-numeric:tabular-nums}
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.presets button{font-size:.85rem;padding:8px 12px}
.prediction{margin-top:26px;border-top:1px solid var(--line);padding-top:24px}
fieldset{padding:0;border:0;margin:0 0 16px;min-width:0}
legend{font-weight:700;margin-bottom:12px}
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summary{cursor:pointer;min-height:44px;padding:8px 0;font-weight:650}
.observation{border-left:5px solid var(--blue);background:#f0f7fa}
.observation .outcome{font-size:1.2rem;font-weight:700}
.feedback{padding:12px 16px;border-radius:10px;background:white;margin-bottom:18px}
textarea{display:block;width:100%;min-height:130px;padding:14px;border:1px solid #9aada3;border-radius:12px;margin-top:10px;resize:vertical;font-size:16px;line-height:1.6}
.explanation label{display:block;font-weight:650}
.correction{padding:20px;background:var(--soft);border-radius:14px;margin-top:20px}
.evidence{border-top:1px solid var(--line);padding-top:24px;margin-top:32px}
.evidence-list{padding-left:22px;font-size:.9rem}
.evidence-list li{margin-bottom:12px;overflow-wrap:anywhere}
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@page{size:A4;margin:14mm}
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