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.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 23px}.hero-actions .button{min-width:150px;font-size:13px;padding:13px 18px}.hero-actions .button>.icon:last-child{margin-left:10px}.hero-actions .button-light{background:#f4f6ee;border-color:#d4dec8;color:#536d40}
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/* Ressources de début de chapitre, vidéos et laboratoire PhET. */
.chapter-intro{display:grid;gap:15px;margin:25px 0 32px;overflow:hidden}.chapter-intro.intro-two-columns{grid-template-columns:repeat(2,minmax(0,1fr))}.chapter-video-block,.chapter-simulation-block{border:1px solid #dfe6d4;border-radius:8px;padding:19px 20px;background:#f0f5e8;min-width:0}.chapter-simulation-block{border-color:#d7e5e4;background:#edf4f2}.resource-intro-label{font-size:8px;letter-spacing:1.3px;font-weight:650;display:flex;align-items:center;gap:8px;color:#7c9669;margin-bottom:10px}.chapter-simulation-block .resource-intro-label{color:#75958d}.resource-intro-label .icon{width:16px;height:16px}.chapter-intro h2{font-size:17px;margin:0 0 13px;font-weight:600}.chapter-intro ul{list-style:none;margin:0;padding:0}.chapter-intro li+li{margin-top:10px}.chapter-video-link{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:43px;border-bottom:1px solid #dce7cf;padding:8px 0;font-size:13px;line-height:1.6}.chapter-video-link:hover{color:#548137}.chapter-video-link>small{white-space:nowrap;font-size:9px;color:#8ba076}.chapter-simulation-link{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;font-weight:550;line-height:1.6;padding:7px 0}.chapter-simulation-link:hover{color:#4b8072}.chapter-simulation-link .icon{width:15px;height:15px;color:#7b9a8d}.chapter-simulation-block li>p{font-size:12px;line-height:1.7;margin:3px 0 10px;color:#7c9389}.intro-footnote{font-size:9px;line-height:1.6;color:#8d9d80;margin:13px 0 0}.chapter-simulation-block .intro-footnote{color:#8b9e94}.creator-link{display:inline-block;font-size:12px;text-decoration:underline;text-underline-offset:4px;color:#69834d;margin-top:19px}.video-grid,.simulation-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.video-card,.simulation-card{display:flex;flex-direction:column;padding:22px;border:1px solid var(--line);background:white;border-radius:9px;min-width:0;min-height:215px;transition:border-color .15s,box-shadow .15s}.video-card:hover,.simulation-card:hover{border-color:#a6ba94;box-shadow:var(--shadow)}.media-card-top{display:flex;align-items:center;justify-content:space-between;color:#93a085;font-size:10px}.media-card-symbol{width:34px;height:34px;background:#edf3e3;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#83a264;font-size:12px}.simulation-card .media-card-symbol{background:#e6f0ed;color:#789d8d}.media-card-symbol .icon{width:19px;height:19px}.video-card h2,.simulation-card h2{font-size:17px;margin:20px 0 12px;line-height:1.45;font-weight:580}.video-card>p,.simulation-card>p{font-size:10px;color:#8e9b83;line-height:1.7;margin:0 0 20px}.media-card-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto}.media-card-bottom>.icon{width:15px;height:15px;color:#8da279}.media-grades{display:flex;gap:4px;flex-wrap:wrap}.media-grades .tag{font-size:9px;padding:4px 6px}.phet-attribution{font-size:10px;color:#89957e;line-height:1.8;margin:24px 0 30px;overflow-wrap:anywhere}.phet-attribution a{color:#6f8657;text-decoration:underline;text-underline-offset:3px}.simulation-heading{padding:25px 0 12px}.simulation-heading h1{font-size:38px;margin:0 0 16px;line-height:1.2}.simulation-heading>p:not(.eyebrow){font-size:13px;color:#87977b;line-height:1.8}.simulation-toolbar{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:20px}.simulation-stage{position:relative;height:clamp(390px,65vh,700px);border:1px solid #d9e4d0;border-radius:9px;overflow:hidden;background:#f2f5ec;isolation:isolate}.phet-frame{width:100%;height:100%;border:0;display:block;background:white}.simulation-loading{position:absolute;inset:0;display:flex;justify-content:center;align-items:center;background:#f4f7ee;font-size:13px;color:#8b9b7b;z-index:1;margin:0}.simulation-loading[hidden]{display:none}.simulation-stage:fullscreen{width:100vw;height:100vh;border:0;border-radius:0}.simulation-stage:fullscreen iframe{width:100vw;height:100vh}.simulation-activities{padding:24px 26px;border:1px solid #e0e7d7;background:#f1f5e9;border-radius:8px;margin:28px 0}.simulation-activities h2{font-size:21px}.simulation-activities ul{font-size:14px;line-height:1.8;padding-left:20px;color:#738866;margin-bottom:0}.simulation-activities li+li{margin-top:10px}
@media(max-width:1200px){.video-grid,.simulation-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.chapter-video-block,.chapter-simulation-block{padding:16px}.chapter-video-link{display:block}.chapter-video-link>small{display:block;margin-top:3px}.chapter-intro h2{font-size:16px}}
@media(max-width:650px){.chapter-intro.intro-two-columns{grid-template-columns:1fr}.chapter-video-link{display:flex}.chapter-video-link>small{margin:0}.simulation-heading h1{font-size:31px}.simulation-stage{height:65vh;min-height:350px}.simulation-activities{padding:20px}.simulation-toolbar .button{font-size:11px;padding:10px 14px}}
@media(max-width:450px){.video-grid,.simulation-grid{grid-template-columns:1fr}.video-card h2,.simulation-card h2{font-size:20px}.chapter-video-link{font-size:12px}.chapter-intro{gap:12px}.chapter-simulation-block li>p{font-size:12px}.simulation-heading h1{font-size:28px}.simulation-stage{margin-inline:-8px;width:calc(100% + 16px);border-radius:5px}.phet-attribution{font-size:9px}}
@media(max-height:850px) and (min-width:761px){.sidebar{padding-top:24px}.brand{margin-bottom:25px}.nav-label{margin-top:21px;margin-bottom:10px}.nav-item{padding-top:9px;padding-bottom:9px;min-height:40px}.sidebar-footer{padding-top:20px}}
@media print{.chapter-intro,.simulation-toolbar{display:none}.video-grid,.simulation-grid{display:block}.simulation-stage{height:14cm}.simulation-activities{break-inside:avoid}}
.assessment-choice,.assessment-identity{padding:28px}.assessment-modes{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:24px 0}.assessment-mode{display:flex;flex-direction:column;gap:14px;text-align:left;padding:24px;border:1px solid var(--border,#d4ded7);border-radius:14px;background:#f8faf6;color:#183e36;font:inherit;cursor:pointer}.assessment-mode:hover,.assessment-mode:focus-visible{outline:2px solid #397766}.assessment-mode strong{font-size:1.35rem}.assessment-mode small{color:#52675d}.identity-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:24px 0}.identity-grid label{display:flex;flex-direction:column;gap:8px;font-weight:600}.identity-grid input,.identity-grid select,.blank-text select{padding:12px;border:1px solid #a8bbae;border-radius:7px;background:white;color:#183e36;font:inherit;max-width:100%}.assessment-error{padding:15px;background:#fff0e9;color:#903f25;border-radius:9px}.blank-text{line-height:3}.quiz-prompt>img{display:block;max-height:380px;width:auto;max-width:100%;margin:0 auto 20px}.assessment-modes button:disabled{opacity:.5}.quiz-actions{gap:12px;flex-wrap:wrap}.quiz-answers legend{margin-bottom:14px}.quiz-review .quiz-prompt{padding:15px}@media(max-width:600px){.assessment-modes,.identity-grid{grid-template-columns:1fr}.assessment-choice,.assessment-identity{padding:18px}.assessment-mode{padding:18px}.quiz-actions button{width:100%}}
.assessment-session-bar{padding:20px 24px;background:#f0f5eb;border-radius:12px;margin-bottom:22px}.assessment-session-bar p{margin:8px 0 0}.native-quiz #h5p-container{border-radius:12px;overflow:hidden}.teacher-login{max-width:520px;margin:20px auto;background:white;border:1px solid #d6dfd3;border-radius:14px}.teacher-login label{display:flex;flex-direction:column;gap:10px;font-weight:600}.teacher-login input{font:inherit;padding:12px;border:1px solid #a8bbae;border-radius:7px}.teacher-login p{line-height:1.6}.teacher-toolbar,.teacher-actions,.teacher-filters{display:flex;gap:16px;align-items:center;flex-wrap:wrap}.teacher-toolbar strong{margin-right:auto}.teacher-section{margin:36px 0;padding:24px;background:white;border:1px solid #d6dfd3;border-radius:14px}.teacher-table-wrap{overflow-x:auto;width:100%;margin-top:20px}.teacher-table{width:100%;border-collapse:collapse;font-size:14px;text-align:left}.teacher-table th{font-size:12px;letter-spacing:.04em;text-transform:uppercase;color:#627767}.teacher-table th,.teacher-table td{padding:13px 10px;border-bottom:1px solid #e5e9e2;vertical-align:top}.teacher-table input[type=checkbox]{width:18px;height:18px;accent-color:#2b614b}.teacher-count{display:inline-block;font-size:18px;padding:3px 10px;background:#e6efdd;border-radius:20px}.teacher-filters label{display:flex;flex-direction:column;gap:6px;flex:1;min-width:140px}.teacher-filters select,.teacher-filters input{font:inherit;background:white;border:1px solid #c3d0bf;border-radius:7px;padding:10px;max-width:100%}.teacher-actions{margin:20px 0}.teacher-toolbar+.assessment-error:empty{display:none}@media(max-width:600px){.teacher-section{padding:14px}.teacher-toolbar button,.teacher-actions button{width:100%}.teacher-filters{display:grid;grid-template-columns:1fr}.teacher-login{padding:18px}}
.presence-class-counts{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.presence-class{display:flex;gap:9px;align-items:center;background:#f4f7ef;border:1px solid #d9e2d2;border-radius:8px;padding:9px 12px;color:#284938;font:inherit;cursor:pointer}.presence-class.selected{background:#dfebd4;border-color:#648a55}.presence-class span{font-size:12px}.presence-summary{padding:14px 16px;background:#f8f0dd;border-left:4px solid #b58b36;line-height:1.6}.presence-summary.complete{background:#eaf3e2;border-color:#61874c}.teacher-table .presence-elsewhere{background:#fff4e9}.teacher-table .presence-late{background:#faf5e9}