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24px;text-align:center;font-size:.76rem;color:var(--gray);letter-spacing:.01em}.beta-bar strong{color:var(--navy);font-weight:700}.beta-bar a{color:var(--steel);font-weight:600;text-decoration:underline;cursor:pointer}#hdr{position:-webkit-sticky;position:sticky;top:0;z-index:60;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border-bottom:1px solid transparent;transition:border-color .3s,box-shadow .3s}#hdr.scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1)}nav{gap:6px;height:72px}.brand,nav{display:flex;align-items:center}.brand{gap:12px;flex-shrink:0;font-weight:800;font-size:1.05rem;letter-spacing:-.025em;color:var(--navy)}.brand-mark{width:40px;height:40px;border-radius:12px;flex-shrink:0;background:linear-gradient(145deg,var(--gv-violet,#6d4cf5) 0,var(--gv-violet-deep,#4a2fd1) 100%);display:grid;place-items:center;position:relative;overflow:hidden;box-shadow:0 2px 8px 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.mod-desc{font-size:.8rem;line-height:1.5;-webkit-line-clamp:2}.mod-lumiere .mod-foot{padding-top:10px}.mod-lumiere .mod-meta{font-size:.72rem}.mod-lumiere a.mod-card:hover{transform:translateY(-4px);border-color:rgba(109,76,245,.45);box-shadow:var(--gv-e3,0 20px 44px -14px rgba(70,40,160,.32),0 4px 12px rgba(40,20,90,.1))}.mod-lumiere .mod-foot{border-top:1px dashed rgba(109,76,245,.22)}[data-theme=dark] .mod-lumiere .mod-card{background:rgba(14,25,41,.58);border-color:hsla(0,0%,100%,.1);box-shadow:inset 0 1px 0 hsla(0,0%,100%,.05),0 18px 40px -22px rgba(0,0,0,.5)}[data-theme=dark] .mod-lumiere a.mod-card:hover{border-color:rgba(167,139,250,.55)}.dash-lumiere{position:relative;background:linear-gradient(165deg,#f8f4ff,#efe6ff 30%,#f3e4f5 62%,#fdecf6)}[data-theme=dark] .dash-lumiere{background:linear-gradient(165deg,#131022,#181428 45%,#1d1526)}.dash-lumiere .card,.dash-lumiere .dashboard-focus-card,.dash-lumiere .dashboard-insights,.dash-lumiere .dstat,.dash-lumiere 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a{--lesson-accent:var(--gv-violet-deep,#4a2fd1)}.lesson-lumiere .lesson-list li.lesson-fiche a{--lesson-accent:#b3812f}.lesson-lumiere .lesson-list li.lesson-qcm a{--lesson-accent:var(--gv-pink-ink,#c23f94)}.lesson-lumiere .lesson-list{gap:12px}.lesson-lumiere .lesson-list li a,.lesson-lumiere .resource-list a{padding:16px 20px;border-radius:18px;background:var(--gv-card-bg,hsla(0,0%,100%,.82));-webkit-backdrop-filter:blur(var(--gv-card-blur,18px)) saturate(160%);backdrop-filter:blur(var(--gv-card-blur,18px)) saturate(160%);border:1px solid var(--gv-card-border,hsla(0,0%,100%,.9));box-shadow:var(--gv-e2,0 8px 20px -6px rgba(70,40,160,.18),0 2px 6px rgba(40,20,90,.06))}.lesson-lumiere .lesson-list li a:before{display:none}.lesson-lumiere .lesson-list li a:hover,.lesson-lumiere .resource-list a:hover{transform:translateY(-3px);border-color:rgba(109,76,245,.4);box-shadow:var(--gv-e3,0 20px 44px -14px rgba(70,40,160,.32),0 4px 12px rgba(40,20,90,.1))}.lesson-lumiere .resource-list a:hover{border-color:#b3812f}.lesson-lumiere .lesson-idx{width:26px;height:auto;background:transparent;border-radius:0;font-family:var(--display);font-weight:700;font-size:.82rem;color:var(--gv-sub,#65597f);opacity:.6}.lesson-lumiere .lesson-kind-ico{width:44px;height:44px;padding:11px;box-sizing:border-box;opacity:1;border-radius:13px;background:linear-gradient(135deg,rgba(109,76,245,.15),rgba(240,111,196,.12))}.lesson-lumiere li.lesson-fiche .lesson-kind-ico{background:linear-gradient(135deg,rgba(179,129,47,.16),rgba(179,129,47,.08))}.lesson-lumiere li.lesson-qcm .lesson-kind-ico{background:linear-gradient(135deg,rgba(194,63,148,.16),rgba(194,63,148,.08))}.lesson-lumiere .lesson-list-title{font-size:.98rem;font-weight:700}.lesson-lumiere .lesson-arrow{opacity:.55}.lesson-lumiere .lesson-list li a:hover .lesson-arrow{opacity:.9}[data-theme=dark] .lesson-lumiere .lesson-list li a,[data-theme=dark] .lesson-lumiere .resource-list 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.exam-card{background:var(--gv-card-bg,hsla(0,0%,100%,.82));-webkit-backdrop-filter:blur(18px) saturate(160%);backdrop-filter:blur(18px) saturate(160%);border:1px solid var(--gv-card-border,hsla(0,0%,100%,.9));box-shadow:var(--gv-e2,0 8px 20px -6px rgba(70,40,160,.18),0 2px 6px rgba(40,20,90,.06));transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease}.mod-lumiere .exam-card:before{display:none}.mod-lumiere a.exam-card:hover{box-shadow:var(--gv-e3,0 20px 44px -14px rgba(70,40,160,.32),0 4px 12px rgba(40,20,90,.1));transform:translateY(-3px);border-color:rgba(109,76,245,.35)}.mod-lumiere .exam-foot{border-top:1px solid rgba(109,76,245,.15)}[data-theme=dark] .mod-lumiere .exam-card{background:rgba(14,25,41,.58);border-color:hsla(0,0%,100%,.1);box-shadow:inset 0 1px 0 hsla(0,0%,100%,.05),0 18px 40px -22px rgba(0,0,0,.5)}.mod-lumiere .exam-eyebrow{color:var(--gv-violet-deep,#4a2fd1)}[data-theme=dark] .mod-lumiere 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