.learning-shell{min-height:calc(100vh - 72px);display:grid;grid-template-columns:310px minmax(0,1fr);background:#f7f7fb}.learning-nav{background:#171728;color:#fff;padding:28px 22px;position:sticky;top:72px;height:calc(100vh - 72px);overflow:auto}.learning-back{display:inline-flex;color:#bbbcd0;font-size:13px;margin-bottom:34px}.learning-course-label{text-transform:uppercase;letter-spacing:.16em;font-size:11px;color:#a99cc8;font-weight:800}.learning-nav h2{font-size:21px;line-height:1.25;margin:8px 0 24px}.learning-progress{padding:16px 0 20px;border-top:1px solid rgba(255,255,255,.08);border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:16px}.learning-progress>div:first-child{display:flex;justify-content:space-between;font-size:12px;color:#b9b9c9;margin-bottom:9px}.learning-progressbar{height:7px;background:#303044;border-radius:999px;overflow:hidden}.learning-progressbar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--violet),#ba72ff);border-radius:999px;transition:.3s}.lesson-steps{display:grid;gap:4px}.lesson-steps button{width:100%;border:0;background:transparent;color:#c9c9d6;display:grid;grid-template-columns:10px 1fr;gap:11px;text-align:left;padding:10px 7px;border-radius:10px;cursor:pointer}.lesson-steps button:hover,.lesson-steps button.active{background:rgba(255,255,255,.07);color:#fff}.lesson-steps button.done .step-dot{background:#35b47b;box-shadow:0 0 0 3px rgba(53,180,123,.15)}.step-dot{width:8px;height:8px;margin-top:14px;border-radius:50%;background:#55556a}.lesson-steps small{display:block;color:#8c8ca0;font-size:9px;letter-spacing:.13em;margin-bottom:2px}.learning-main{width:min(1040px,calc(100% - 48px));margin:0 auto;padding:24px 0 70px}.learning-topline{display:flex;justify-content:space-between;gap:20px;align-items:center;color:#77798d;font-size:13px;margin:0 0 18px}.learning-topline strong{color:#343548}.badge-neutral{background:#efeff5;color:#55576b}.lesson-panel{display:none;background:#fff;border:1px solid var(--line);border-radius:24px;padding:42px;min-height:620px;box-shadow:0 18px 60px rgba(30,18,64,.07)}.lesson-panel.active{display:block}.lesson-index{font-size:11px;letter-spacing:.15em;font-weight:850;color:var(--violet);margin-bottom:12px}.lesson-panel>h1{font-size:clamp(32px,5vw,48px);line-height:1.08;margin:0 0 26px;max-width:820px}.lesson-copy{max-width:800px}.lesson-copy p{font-size:18px;line-height:1.75;color:#52556a;margin:0 0 18px}.lesson-bullets{font-size:17px;line-height:1.7;color:#52556a;padding-left:22px}.lesson-bullets li{margin:9px 0}.module-callout{margin:24px 0;padding:18px 20px;border-radius:14px;background:#f6f0ff;border-left:4px solid var(--violet);max-width:820px}.module-callout.good{background:#ebf8f1;border-left-color:#16845b}.module-callout.warn{background:#fff7e6;border-left-color:#e0a21b}.module-callout p{margin:6px 0 0;color:#56586b}.module-code{background:#151526;color:#f5f5fb;border-radius:16px;padding:22px;overflow:auto;font-size:16px}.concept-flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr;gap:10px;align-items:center;margin:34px 0}.concept-node{min-height:180px;border:1px solid var(--line);background:#fafafe;border-radius:18px;padding:20px;display:flex;flex-direction:column;justify-content:center;text-align:center}.concept-node>span{font-size:30px;margin-bottom:12px}.concept-node strong{font-size:17px;margin-bottom:8px}.concept-node small{color:var(--muted);line-height:1.45}.concept-arrow{font-size:25px;color:#aaaabd}.prompt-large{background:#151526;color:#f7f7fb;border-radius:18px;padding:28px;font:700 22px ui-monospace,SFMono-Regular,Consolas,monospace;margin:28px 0}.p-user{color:#82dfaa}.p-host{color:#89bfff}.p-path{color:#e3c37c}.p-symbol{color:#d6d6e4}.cursor{display:inline-block;width:10px;height:21px;background:#eee;margin-left:7px;vertical-align:-3px;animation:blink 1s steps(1) infinite}@keyframes blink{50%{opacity:0}}.prompt-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.prompt-grid>div{border:1px solid var(--line);border-radius:14px;padding:16px;background:#fbfbfe}.prompt-grid b{display:block;font-family:ui-monospace,monospace;margin-bottom:6px}.prompt-grid span{font-size:12px;color:var(--muted)}.quiz-box{max-width:840px}.quiz-question{font-weight:650}.quiz-options{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}.quiz-options button{border:1px solid var(--line);border-radius:15px;background:#fff;padding:17px;text-align:left;font-weight:700;cursor:pointer;display:flex;gap:12px;align-items:center}.quiz-options button span{display:grid;place-items:center;width:31px;height:31px;border-radius:9px;background:#f2edff;color:var(--violet);flex:0 0 auto}.quiz-options button:hover{border-color:#baa2ee}.quiz-options button.correct{border-color:#5fc494;background:#edf9f3}.quiz-options button.wrong{border-color:#e69a9a;background:#fff1f1}.quiz-feedback{display:none;margin-top:16px;padding:15px;border-radius:12px;background:#f6f1ff;color:#52556a}.quiz-feedback.show{display:block}.lab-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:18px}.terminal-window{background:#11131c;border-radius:18px;overflow:hidden;box-shadow:0 20px 46px rgba(0,0,0,.18)}.terminal-title{height:46px;display:flex;align-items:center;color:#aeb1c3;background:#1a1d28;border-bottom:1px solid #292d3c;font-size:12px;padding:0 15px}.terminal-lights{display:flex;gap:7px;margin-right:14px}.terminal-lights i{width:10px;height:10px;border-radius:50%;background:#5c6070}.terminal-lights i:nth-child(1){background:#ec6b65}.terminal-lights i:nth-child(2){background:#e8bd62}.terminal-lights i:nth-child(3){background:#63c174}.terminal-screen{height:365px;overflow:auto;padding:18px;color:#ecedf3;font:14px/1.65 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre-wrap}.terminal-welcome{color:#74798e;margin-bottom:8px}.term-error{color:#ff9292}.term-command{color:#fff}.terminal-inputline{display:flex;gap:7px;align-items:center;padding:0 18px 18px;color:#83dda7;font:14px ui-monospace,SFMono-Regular,Consolas,monospace}.terminal-inputline input{min-width:0;flex:1;background:transparent;border:0;outline:0;color:#fff;font:inherit;padding:6px 0}.lab-mission{border:1px solid var(--line);border-radius:18px;padding:22px;background:#fbfbfe}.lab-label{font-size:10px;letter-spacing:.16em;font-weight:850;color:var(--violet);text-transform:uppercase}.lab-mission h3{font-size:21px;margin:7px 0 9px}.lab-mission>p{color:#5d6074;line-height:1.55}.lab-tasks{display:grid;gap:8px;margin:18px 0}.lab-tasks>div{display:flex;gap:9px;align-items:start;font-size:13px;color:#606276}.lab-tasks i{width:20px;height:20px;border-radius:50%;display:grid;place-items:center;background:#ececf3;color:transparent;font-style:normal;flex:0 0 auto}.lab-tasks>div.done i{background:#16845b;color:#fff}.hint-button{border:0;background:transparent;padding:0;color:var(--violet);font-weight:800;cursor:pointer}.lab-hint{display:none;background:#fff6de;border-radius:11px;padding:12px;margin-top:9px;color:#75591f;font-size:13px;line-height:1.45}.lab-hint.show{display:block}.lab-success{display:none;margin-top:15px;background:#eaf7f0;color:#116a46;padding:12px;border-radius:11px;font-weight:700;font-size:13px}.lab-success.show{display:block}.lesson-actions{display:flex;justify-content:space-between;gap:12px;margin-top:42px;padding-top:22px;border-top:1px solid var(--line)}.lesson-actions button:disabled{opacity:.42;cursor:not-allowed}.module-complete{display:none;background:#fff;border:1px solid var(--line);border-radius:24px;min-height:620px;padding:60px;text-align:center;box-shadow:0 18px 60px rgba(30,18,64,.07)}.module-complete.show{display:block}.complete-icon{width:78px;height:78px;margin:0 auto 22px;display:grid;place-items:center;border-radius:50%;background:#e7f7ef;color:#16845b;font-size:38px;font-weight:900}.module-complete h1{font-size:44px;margin:8px 0 12px}.module-complete>p{font-size:18px;line-height:1.6;color:var(--muted);max-width:650px;margin:0 auto 28px}.complete-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:680px;margin:0 auto 30px}.complete-stats div{border:1px solid var(--line);border-radius:15px;padding:18px}.complete-stats strong{display:block;font-size:25px}.complete-stats span{font-size:12px;color:var(--muted)}
@media(max-width:980px){.learning-shell{grid-template-columns:1fr}.learning-nav{position:static;height:auto;padding:20px}.lesson-steps{display:none}.learning-progress{margin-bottom:0}.learning-main{width:min(100% - 28px,900px)}.concept-flow{grid-template-columns:1fr}.concept-arrow{transform:rotate(90deg);text-align:center}.lab-grid{grid-template-columns:1fr}.prompt-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.lesson-panel{padding:25px 18px;min-height:0}.quiz-options,.prompt-grid,.complete-stats{grid-template-columns:1fr}.learning-topline{align-items:flex-start}.learning-topline .badge{display:none}.module-complete{padding:40px 18px}.terminal-screen{height:300px}}

/* V0.3 — Leçons, templates et blocs */
.lesson-objective{display:flex;gap:12px;align-items:flex-start;background:#f4efff;border:1px solid #e6dafb;border-radius:12px;padding:14px 16px;margin:0 0 24px}.lesson-objective strong{color:#6517e8;white-space:nowrap}.lesson-objective span{color:#4f5268;line-height:1.5}.lesson-block-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}.lesson-block{grid-column:1/-1;min-width:0}.lesson-block.half{grid-column:span 1}.lesson-block>h2{font-size:28px;margin:4px 0 12px}.lesson-block>h3{font-size:21px;margin:4px 0 10px}.lesson-divider{border:0;border-top:1px solid #e7e7ef;margin:8px 0}.template-practice.width-wide,.width-wide{max-width:1080px}.template-lab.width-full,.template-challenge.width-full,.width-full{max-width:none}.template-lab .lesson-block-grid,.template-challenge .lesson-block-grid{gap:22px}.template-challenge .lesson-objective{background:#fff8e8;border-color:#f0dca8}.module-callout.tip{border-left-color:#16845b;background:#edf8f3}.module-callout.info{border-left-color:#6517e8;background:#f7f2ff}.module-callout.warning{border-left-color:#d49a17;background:#fff8e8}.quiz-hint-button{margin-top:12px}.simulator-runtime{border:1px solid #dfe1ea;border-radius:16px;overflow:hidden;background:#fff;box-shadow:0 12px 30px rgba(28,29,54,.06)}.simulator-bar{display:flex;justify-content:space-between;gap:18px;align-items:center;padding:12px 16px;background:#f4f5f9;border-bottom:1px solid #e3e4eb;font-size:13px}.simulator-bar span{color:#6b6e83}.simulator-stage{min-height:260px;display:grid;place-items:center;padding:30px;background:linear-gradient(135deg,#fbfbfd,#f4f0fa)}.simulator-stage>div{max-width:520px;text-align:center}.simulator-stage strong{font-size:22px}.simulator-stage p{color:#5d6074;line-height:1.6}.simulator-stage small{display:block;color:#8a8da0;margin-top:14px}.quiz-options button.selected{outline:2px solid #b99bea}.quiz-options button:disabled{cursor:default;opacity:.86}
@media(max-width:900px){.lesson-block-grid{grid-template-columns:1fr}.lesson-block.half{grid-column:1}.lesson-objective{flex-direction:column;gap:5px}}

/* V0.4 per-lesson typography */
.lesson-panel{font-family:var(--lesson-font,Inter,system-ui,-apple-system,Segoe UI,sans-serif)}
.lesson-panel>h1{font-size:clamp(28px,var(--lesson-title-size,48px),68px)}
.lesson-panel .lesson-copy p,.lesson-panel .lesson-bullets{font-size:var(--lesson-body-size,18px);line-height:var(--lesson-line-height,1.75)}
.lesson-panel .module-callout,.lesson-panel .quiz-box,.lesson-panel .lab-mission{font-size:var(--lesson-body-size,18px);line-height:var(--lesson-line-height,1.7)}
.module-callout.warning{background:#fff7e6;border-left-color:#e0a21b}
.module-callout.info{background:#edf6ff;border-left-color:#4388c7}

/* V0.5 — sections pédagogiques & composants enrichis */
.lesson-phase{display:grid;grid-template-columns:max-content minmax(80px,1fr);gap:20px;align-items:center;margin:12px 0 4px;padding:8px 0}.lesson-phase>div{display:flex;flex-direction:column;gap:4px}.lesson-phase span{font:850 18px/1.2 ui-monospace,SFMono-Regular,Consolas,monospace;color:#21182f}.lesson-phase small{font-size:12px;color:#878395}.lesson-phase i{display:block;height:4px;border-radius:99px;background:linear-gradient(90deg,var(--violet),#a966ff 62%,rgba(169,102,255,.08));box-shadow:0 0 18px rgba(101,23,232,.12)}.lesson-phase.phase-manipuler i{width:82%}.lesson-phase.phase-tester i{width:62%}.lesson-phase.phase-recommencer i{width:88%}.lesson-phase.phase-maitriser i{width:100%}.lesson-phase.phase-maitriser span{color:var(--violet)}
.module-callout.definition{background:#f3f4ff;border-left-color:#635bd9}.module-callout.example{background:#eef8ff;border-left-color:#3387c2}.module-callout.error{background:#fff0f0;border-left-color:#c44a4a}.lesson-block.block-section{margin-top:22px}
.lesson-panel{box-shadow:0 20px 64px rgba(30,18,64,.065)}.lesson-objective{border-radius:14px}.quiz-options button,.lab-mission,.terminal-window,.simulator-runtime{transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}.quiz-options button:hover{transform:translateY(-1px)}
@media(max-width:620px){.lesson-phase{grid-template-columns:1fr;gap:9px}.lesson-phase i{width:100%!important}}