:root{--ink:#183b33;--muted:#74827d;--green:#265b4c;--mint:#e8f3ed;--paper:#f5f6f2;--white:#fff;--line:#e6e9e3;--gold:#d2a650;--rose:#f7e9e7;--shadow:0 12px 38px #183b3310}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px 'DM Sans',sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer}h1,h2,h3{font-family:Manrope,sans-serif;margin:0;letter-spacing:-.035em}h1{font-size:30px}h2{font-size:22px}h3{font-size:16px}.muted{color:var(--muted)}.small{font-size:12px}.loading{padding:60px;text-align:center}.login-shell{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}.login-art{background:var(--ink);color:white;padding:8vw;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}.login-art:after{content:'';position:absolute;width:400px;height:400px;border:1px solid #ffffff24;border-radius:50%;right:-150px;bottom:-120px;box-shadow:0 0 0 42px #ffffff09,0 0 0 88px #ffffff07}.brand{display:flex;gap:12px;align-items:center;font:700 18px Manrope}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:13px;background:#d9eacb;color:var(--ink);font-weight:800}.login-art h1{font-size:clamp(38px,5vw,64px);line-height:1.06;max-width:500px}.login-art p{font-size:17px;line-height:1.7;color:#cfdbd5;max-width:420px}.login-form-wrap{display:grid;place-items:center;padding:32px}.login-card{width:min(420px,100%)}.login-card h2{margin:20px 0 8px;font-size:28px}.login-card .tabs{margin:24px 0}.tabs{display:flex;gap:6px;background:#edf0eb;padding:5px;border-radius:13px}.tabs button{border:0;background:none;color:var(--muted);padding:10px 14px;border-radius:9px;flex:1}.tabs button.active{background:white;color:var(--ink);box-shadow:0 2px 8px #183b3310;font-weight:700}.field{display:grid;gap:7px;margin:14px 0}.field label{font-size:13px;font-weight:700}.field input,.field select,.field textarea{width:100%;padding:12px 13px;border:1px solid #dce2dc;border-radius:10px;background:white;color:var(--ink);outline:none}.field input:focus,.field select:focus,.field textarea:focus{border-color:#6b9e82;box-shadow:0 0 0 3px #deeee4}.field textarea{min-height:90px;resize:vertical}.btn{border:0;border-radius:10px;padding:11px 15px;background:var(--green);color:white;font-weight:700;transition:.16s}.btn:hover{transform:translateY(-1px);filter:brightness(1.07)}.btn.secondary{background:var(--mint);color:var(--ink)}.btn.ghost{background:transparent;color:var(--green);border:1px solid var(--line)}.btn.danger{background:#9d4941}.btn.gold{background:#e9d6aa;color:#4c3915}.btn.smallbtn{padding:7px 10px;font-size:12px}.btn.wide{width:100%;margin-top:8px}.alert{padding:11px 13px;background:var(--rose);color:#763d36;border-radius:10px;font-size:13px;margin:12px 0}.note{border-left:3px solid var(--gold);padding:10px 12px;background:#fbf6e9;border-radius:0 9px 9px 0;color:#695629;font-size:13px;line-height:1.55}.app-layout{min-height:100vh;display:grid;grid-template-columns:250px 1fr}.sidebar{background:#fff;border-right:1px solid var(--line);padding:24px 16px;display:flex;flex-direction:column;gap:22px;position:sticky;top:0;height:100vh}.sidebar .brand{padding:0 10px}.nav{display:grid;gap:5px}.nav button{border:0;background:transparent;text-align:left;color:#60736b;padding:12px;border-radius:10px;font-weight:600;display:flex;gap:12px;align-items:center}.nav button:hover,.nav button.active{background:var(--mint);color:var(--ink)}.nav .ico{width:22px;text-align:center;font-size:17px}.side-bottom{margin-top:auto;border-top:1px solid var(--line);padding:14px 8px 0}.profile{display:flex;align-items:center;gap:10px}.avatar{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:#e4eee7;color:var(--green);font-weight:800}.main{min-width:0}.topbar{height:72px;background:#ffffffbd;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 38px;position:sticky;top:0;z-index:5;backdrop-filter:blur(10px)}.topbar .crumb{font-size:13px;color:var(--muted)}.content{padding:34px 40px;max-width:1400px;margin:auto}.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;margin-bottom:26px}.page-head p{margin:7px 0 0;color:var(--muted)}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.grid{display:grid;gap:16px}.grid.stats{grid-template-columns:repeat(4,1fr);margin-bottom:22px}.card{background:white;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow)}.stat-label{font-size:13px;color:var(--muted)}.stat-num{font:800 29px Manrope;margin-top:10px;letter-spacing:-.04em}.stat-sub{font-size:12px;color:var(--muted);margin-top:4px}.card-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px}.split{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}.list{display:grid;gap:10px}.list-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:13px 0;border-bottom:1px solid #edf0eb}.list-row:last-child{border:0}.list-title{font-weight:700}.list-meta{font-size:12px;color:var(--muted);margin-top:4px}.badge{display:inline-flex;align-items:center;padding:5px 9px;background:var(--mint);color:var(--green);font-size:11px;border-radius:999px;font-weight:700;white-space:nowrap}.badge.locked{background:#f0f0ed;color:#778079}.badge.draft{background:#f8f0dc;color:#806622}.badge.red{background:var(--rose);color:#8a473e}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse;text-align:left}.table th{font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:#8a9691;padding:10px 12px;border-bottom:1px solid var(--line)}.table td{padding:13px 12px;border-bottom:1px solid #eff1ed;vertical-align:middle}.table tr:last-child td{border-bottom:0}.table .actions{white-space:nowrap}.empty{padding:30px;text-align:center;color:var(--muted);border:1px dashed #cbd4cc;border-radius:12px}.chapter{margin-bottom:14px}.chapter-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.resource-preview{white-space:pre-wrap;background:#f8f9f6;border-radius:11px;padding:14px;max-height:240px;overflow:auto;font-size:13px;line-height:1.6}.question-builder{padding:14px;background:#f8f9f6;border-radius:12px;margin:12px 0;border:1px solid var(--line)}.question-builder .row{margin-top:8px}.modal-backdrop{position:fixed;inset:0;background:#10251f77;z-index:20;display:grid;place-items:center;padding:20px}.modal{background:white;width:min(680px,100%);max-height:90vh;overflow:auto;border-radius:18px;padding:24px;box-shadow:0 20px 60px #0003}.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.modal-close{border:0;background:#eef2ed;width:32px;height:32px;border-radius:50%;font-size:20px}.student-home{max-width:980px;margin:auto;padding:34px}.activity-card{display:flex;justify-content:space-between;gap:16px;align-items:center}.activity-card h3{margin-bottom:7px}.question{margin:18px 0;padding:18px;border:1px solid var(--line);border-radius:14px}.question legend,.q-title{font-weight:700;margin-bottom:12px}.answer-option{display:flex;gap:9px;align-items:flex-start;padding:8px 4px}.answer-option input{margin-top:3px}.progress{height:8px;border-radius:20px;background:#e8ece7;overflow:hidden}.progress span{height:100%;display:block;background:#78a98c}.toast{position:fixed;right:22px;bottom:22px;background:#173b32;color:white;padding:13px 16px;border-radius:12px;box-shadow:var(--shadow);z-index:40;max-width:360px}.hide{display:none!important}.mobile-menu{display:none}
@media(max-width:900px){.app-layout{grid-template-columns:76px 1fr}.sidebar{padding:20px 10px;align-items:center}.sidebar .brand span:last-child,.nav button span:last-child,.side-bottom .profile div:last-child,.side-bottom .btn{display:none}.sidebar .brand{padding:0}.nav{width:100%}.nav button{justify-content:center;padding:13px 4px}.nav .ico{width:auto}.side-bottom .profile{justify-content:center}.topbar{padding:0 20px}.content{padding:26px 20px}.grid.stats{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.login-shell{grid-template-columns:1fr}.login-art{min-height:300px;padding:28px}.login-art h1{font-size:40px}.login-art p{font-size:14px}.login-art .brand{margin-bottom:25px}.login-form-wrap{padding:30px 22px;align-items:start}.app-layout{display:block}.sidebar{position:fixed;z-index:10;bottom:0;top:auto;left:0;right:0;width:100%;height:66px;padding:5px 7px;border-right:0;border-top:1px solid var(--line);display:block}.sidebar .brand,.side-bottom{display:none}.nav{display:flex;justify-content:space-around;gap:0}.nav button{display:grid;gap:1px;font-size:9px;padding:7px 4px;justify-items:center}.nav button span:last-child{display:block;font-size:9px}.nav .ico{font-size:17px}.topbar{height:58px}.content{padding:22px 15px 84px}.student-home{padding:22px 15px 90px}.grid.stats{gap:10px}.card{padding:15px}.stat-num{font-size:24px}.page-head{align-items:flex-start;flex-direction:column}.split{grid-template-columns:1fr}.activity-card{align-items:flex-start;flex-direction:column}.table td{padding:10px 8px}.table th{padding:9px 8px}}
/* Cahier Pédago refinements: shared visual system, source QCM, and progress charts. */
:root{--ink:#15382f;--green:#24634f;--mint:#e8f4ed;--paper:#f4f7f4;--line:#e1e9e3;--shadow:0 12px 32px #173b3210}
.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;background:#dcebd7;flex:none}.brand-mark img{width:34px;height:34px;display:block}.login-art .brand-mark{background:#dcebd7}
.charts{grid-template-columns:1fr 1fr}.chart-list{display:grid;gap:14px}.chart-row{display:grid;grid-template-columns:minmax(100px,1.1fr) minmax(80px,2fr) 42px;align-items:center;gap:12px}.chart-label{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:700}.chart-label span{display:block;font-size:11px;color:var(--muted);font-weight:400}.chart-track{height:10px;border-radius:99px;background:#edf1ec;overflow:hidden}.chart-track span{display:block;height:100%;min-width:4px;border-radius:99px;background:linear-gradient(90deg,#72a888,#28644f)}.chart-value{text-align:right;font-size:13px}
@media(max-width:900px){.charts{grid-template-columns:1fr}}
@media(max-width:600px){.chart-row{grid-template-columns:minmax(78px,1fr) minmax(60px,1.3fr) 38px;gap:8px}.chart-label{font-size:12px}}
/* Parcours pédagogique et visualiseur de cours intégré. */
.path-chapter{margin:12px 0;padding:16px;border:1px solid var(--line);border-radius:13px;background:#fbfcfa}.path-list{display:grid;gap:8px;margin-top:14px}.path-resource,.student-resource{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px;border:1px solid #e9eee9;border-radius:12px;background:#fff}.path-resource-main{display:flex;align-items:center;gap:11px;min-width:0}.path-index{display:grid;place-items:center;width:30px;height:30px;flex:none;border-radius:10px;background:var(--mint);color:var(--green);font-weight:800;font-size:12px}.student-resource.resource-locked{background:#f8f9f7;color:#758079}.course-path{display:grid;gap:14px}.modal.modal-wide{width:min(1060px,100%)}.integrated-viewer{margin-top:12px}.doc-frame{display:block;width:100%;height:min(70vh,760px);border:1px solid var(--line);border-radius:12px;background:#f2f3ef}.doc-text{max-height:68vh;min-height:300px}
@media(max-width:700px){.path-resource,.student-resource{align-items:flex-start;flex-direction:column}.path-resource .row{width:100%}.path-resource .row .btn{flex:1}.slide-canvas{min-height:45vh}.doc-frame{height:65vh}.modal.modal-wide{padding:16px}}
.timer-banner{position:sticky;top:0;z-index:2;display:flex;justify-content:center;gap:6px;align-items:center;background:#fff4d9;border-color:#f0d48f;color:#633f00;font-size:16px;font-variant-numeric:tabular-nums}.timer-banner #timerDisplay{font-size:22px;font-weight:800}.modal select[multiple]{min-height:160px;border:1px solid var(--line);border-radius:10px;padding:8px;background:#fff;color:var(--ink)}
.source-list{display:grid;gap:7px;max-height:240px;overflow:auto;padding:3px}.source-option{display:flex;align-items:flex-start;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer}.source-option:has(input:checked){border-color:#75a789;background:#f1f8f2}.source-option input{margin-top:3px;accent-color:var(--green)}.source-option span{min-width:0}.source-option b,.source-option small{display:block;overflow-wrap:anywhere}.source-option small{font-size:12px;color:var(--muted);margin-top:2px}