:root{
  --bg:#0b0d16;--panel:#121522;--panel-2:#171a2b;--panel-3:#1e2236;
  --line:rgba(255,255,255,.09);--line-2:rgba(255,255,255,.15);
  --text:#f7f7fb;--muted:#a8aec3;--pink:#ffacd7;--violet:#acacff;--cyan:#9de7ff;
  --green:#9df3c7;--amber:#ffd36e;--red:#ff8fa3;--shadow:0 18px 55px rgba(0,0,0,.28);--radius:22px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:radial-gradient(circle at 12% 0%,rgba(255,172,215,.12),transparent 26rem),radial-gradient(circle at 88% 4%,rgba(172,172,255,.13),transparent 30rem),linear-gradient(180deg,#0a0c14 0%,#0d101a 48%,#090b12 100%)}
button,input,select{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}.shell{width:min(1500px,calc(100% - 34px));margin:0 auto}.topbar{position:sticky;top:0;z-index:60;background:rgba(10,12,20,.91);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav-shell{min-height:68px;display:flex;align-items:center;gap:16px}.brand{display:flex;align-items:center;gap:10px;border:0;background:transparent;color:#fff;font-weight:950;font-size:1rem;padding:0}.brand-mark{width:36px;height:36px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(135deg,var(--pink),var(--violet));color:#0b0d16}.nav-tabs{margin-left:auto;display:flex;gap:7px;overflow:auto;padding:8px 0}.navbtn{flex:0 0 auto;border:1px solid var(--line);background:#141827;color:#aeb5ca;border-radius:999px;padding:9px 12px;font-weight:850;transition:.18s}.navbtn:hover{color:#fff;border-color:var(--line-2)}.navbtn.active{background:linear-gradient(90deg,var(--pink),var(--violet));color:#0d1018;border-color:transparent}
.view{display:none;padding:30px 0 58px}.view.active{display:block}.hero{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:30px;padding:34px;background:linear-gradient(135deg,rgba(255,255,255,.055),rgba(255,255,255,.018));box-shadow:var(--shadow)}.hero::after{content:"";position:absolute;right:-80px;bottom:-110px;width:330px;height:330px;border-radius:50%;background:linear-gradient(135deg,rgba(255,172,215,.23),rgba(172,172,255,.16));filter:blur(15px);pointer-events:none}.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:.76rem;font-weight:850;letter-spacing:.14em;text-transform:uppercase;color:#d9dbeb}.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--pink),var(--violet))}.hero h1{font-size:clamp(2.4rem,5vw,5.2rem);line-height:.94;margin:12px 0 16px;letter-spacing:-.055em;max-width:1000px}.hero h1 span{background:linear-gradient(90deg,var(--pink),var(--violet),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}.intro{max-width:900px;color:var(--muted);font-size:1.03rem;line-height:1.7;margin:0}.hero-stats{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px}.stat-pill{border:1px solid var(--line);background:rgba(0,0,0,.17);padding:9px 12px;border-radius:999px;color:#d8dced;font-size:.86rem}.stat-pill strong{color:#fff}.section-head,.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin:30px 0 14px}.section-head h2,.page-title{margin:5px 0 0}.section-head h2{font-size:1.45rem}.section-head p,.page-head p{margin:5px 0 0;color:var(--muted);line-height:1.55}.page-title{font-size:clamp(2rem,4vw,3.7rem);letter-spacing:-.045em}.split-head{align-items:center}.source-badge{border:1px solid rgba(157,231,255,.28);background:rgba(157,231,255,.07);color:#d9f7ff;border-radius:999px;padding:9px 12px;font-size:.78rem;font-weight:850}.panel{border:1px solid var(--line);background:linear-gradient(180deg,rgba(23,26,43,.95),rgba(16,19,31,.95));border-radius:var(--radius);box-shadow:var(--shadow)}
.quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:11px}.quick-card{border:1px solid var(--line);background:linear-gradient(180deg,#151927,#10131f);color:var(--text);border-radius:18px;padding:18px;text-align:left;min-height:145px;transition:.18s}.quick-card:hover{transform:translateY(-2px);border-color:rgba(172,172,255,.35)}.quick-card>span{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:linear-gradient(135deg,rgba(255,172,215,.16),rgba(172,172,255,.16));font-size:1.15rem;margin-bottom:14px}.quick-card strong{display:block;font-size:1rem}.quick-card small{display:block;color:var(--muted);line-height:1.5;margin-top:7px}.category-groups{display:grid;gap:22px}.category-group{display:grid;gap:10px}.group-head{display:flex;justify-content:space-between;gap:12px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:8px}.group-head strong{font-size:.95rem}.group-head span{color:var(--muted);font-size:.78rem}.category-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:11px}.category-card{border:1px solid var(--line);background:linear-gradient(180deg,#151927,#10131f);border-radius:18px;padding:16px;min-height:174px;display:flex;flex-direction:column;transition:.18s}.category-card:hover{transform:translateY(-2px);border-color:rgba(172,172,255,.32)}.cat-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:13px;background:#1c2032;font-size:1.2rem}.category-card h3{font-size:1rem;margin:12px 0 6px}.category-card p{font-size:.83rem;line-height:1.5;color:var(--muted);margin:0;flex:1}.cat-meta{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}.chip{display:inline-flex;align-items:center;gap:5px;border:1px solid var(--line);background:#101421;color:#cdd2e3;border-radius:999px;padding:4px 7px;font-size:.69rem}.cat-launch{margin-top:11px;border:1px solid rgba(172,172,255,.28);background:rgba(172,172,255,.08);color:#ececff;border-radius:11px;padding:9px 10px;font-weight:850}
.builder{padding:15px;display:grid;grid-template-columns:minmax(220px,1.4fr) minmax(220px,1fr) 140px auto;gap:10px;align-items:end}.field label{display:block;color:var(--muted);font-size:.76rem;font-weight:800;margin:0 0 6px}.field input,.field select{width:100%;border:1px solid var(--line);background:#0f1320;color:var(--text);border-radius:12px;padding:11px 12px}.primary-btn,.secondary-btn,.tiny-btn,.danger-btn{border-radius:12px;font-weight:900;transition:.17s}.primary-btn{border:0;background:linear-gradient(90deg,var(--pink),var(--violet));color:#0b0d16;padding:12px 16px}.primary-btn:hover,.secondary-btn:hover,.tiny-btn:hover{transform:translateY(-1px)}.secondary-btn{border:1px solid var(--line);background:#171b2a;color:#eef0f8;padding:10px 12px}.full{width:100%}.tiny-btn{border:1px solid var(--line);background:#151927;color:#dfe2ef;padding:7px 9px;font-size:.74rem}.availability{margin:10px 2px 0;color:var(--muted);font-size:.82rem}
.quiz-shell{margin-top:18px;display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:14px}.quiz-card{padding:20px;min-width:0}.quiz-side{padding:16px;height:max-content;position:sticky;top:88px}.quiz-top{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:.8rem}.quiz-top strong{color:#fff}.progress-line{height:8px;border-radius:99px;background:#25293c;overflow:hidden;margin:13px 0 22px}.progress-line i{display:block;height:100%;background:linear-gradient(90deg,var(--pink),var(--violet),var(--cyan));transition:width .2s}.quiz-question{font-size:clamp(1.25rem,2.5vw,1.7rem);line-height:1.38;margin:0 0 18px}.question-context{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:13px}.choice-list{display:grid;gap:9px}.choice-btn{border:1px solid var(--line);background:#121624;color:#f2f3f8;padding:13px 14px;border-radius:13px;text-align:left;line-height:1.45;transition:.15s}.choice-btn:hover:not(:disabled){border-color:rgba(172,172,255,.42);transform:translateY(-1px)}.choice-btn.correct{border-color:rgba(157,243,199,.6);background:rgba(157,243,199,.1)}.choice-btn.wrong{border-color:rgba(255,143,163,.6);background:rgba(255,143,163,.1)}.choice-btn:disabled{cursor:default}.validation-box{border:1px solid rgba(172,172,255,.24);background:#181c2d;border-radius:16px;padding:16px;margin-bottom:12px}.validation-box small{display:block;color:var(--muted);font-weight:800;margin-bottom:7px}.validation-box p{margin:0;line-height:1.55}.validation-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px}.feedback{margin-top:14px;border:1px solid var(--line);background:#101420;border-radius:15px;padding:14px;display:none;line-height:1.55}.feedback.show{display:block}.feedback.ok{border-color:rgba(157,243,199,.38);background:rgba(157,243,199,.07)}.feedback.no{border-color:rgba(255,143,163,.4);background:rgba(255,143,163,.07)}.feedback-title{font-weight:900;margin-bottom:5px}.memo{margin-top:10px;border-left:3px solid var(--cyan);background:rgba(157,231,255,.07);border-radius:0 12px 12px 0;padding:10px 12px;color:#dff8ff}.memo strong{display:block;margin-bottom:4px}.quiz-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:14px}.quiz-actions button{display:none}.quiz-actions button.show{display:inline-flex}.side-block+ .side-block{border-top:1px solid var(--line);margin-top:13px;padding-top:13px}.side-block strong{display:block;font-size:.83rem;margin-bottom:7px}.side-block p,.side-block li{color:var(--muted);font-size:.79rem;line-height:1.5}.side-block p{margin:0}.side-list{padding-left:18px;margin:7px 0 0}.kbd{display:inline-flex;border:1px solid var(--line-2);background:#0e111b;padding:2px 6px;border-radius:6px;font-size:.7rem;color:#dfe4f1}.result-card{margin-top:18px;padding:22px}.result-score{font-size:clamp(2.4rem,6vw,4.2rem);font-weight:950;letter-spacing:-.04em}.result-message{color:var(--muted);line-height:1.6}.result-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:15px}.breakdown{display:grid;gap:8px;margin-top:16px}.break-row{display:grid;grid-template-columns:minmax(150px,1fr) 2fr 80px;gap:10px;align-items:center}.mini-bar{height:7px;background:#262b3e;border-radius:99px;overflow:hidden}.mini-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--pink),var(--violet))}.wrong-review{display:grid;gap:8px;margin-top:14px}.wrong-item{border:1px solid var(--line);background:#101420;border-radius:13px;padding:12px}.wrong-item strong{display:block;margin-bottom:5px}.wrong-item small{display:block;color:var(--muted);line-height:1.5}
.pack-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.pack-card{padding:20px;display:flex;flex-direction:column;min-height:240px}.pack-icon{font-size:1.6rem}.pack-card h3{font-size:1.25rem;margin:12px 0 6px}.pack-card p{color:var(--muted);line-height:1.55;margin:0}.pack-card .pack-note{margin-top:12px;border-top:1px solid var(--line);padding-top:12px;font-size:.78rem}.pack-card .primary-btn{margin-top:auto;align-self:flex-start}
.reference-layout{display:grid;grid-template-columns:285px minmax(0,1fr);gap:14px}.reference-side{padding:14px;height:calc(100vh - 100px);position:sticky;top:85px;overflow:auto}.ref-cats{display:grid;gap:5px;margin-top:12px}.ref-cat{width:100%;border:1px solid transparent;background:transparent;color:#b7bdcf;border-radius:10px;padding:9px 10px;text-align:left;display:flex;justify-content:space-between;gap:10px;font-size:.8rem}.ref-cat:hover,.ref-cat.active{background:#1a1e2f;color:#fff;border-color:var(--line)}.ref-cat span:last-child{color:var(--muted)}.reference-summary{padding:18px;margin-bottom:12px}.reference-summary h2{margin:0 0 6px}.reference-summary p{margin:0;color:var(--muted);line-height:1.55}.reference-content{display:grid;gap:11px}.subgroup{border:1px solid var(--line);background:#11141f;border-radius:18px;overflow:hidden}.subgroup>summary{list-style:none;cursor:pointer;padding:14px 16px;font-weight:900;display:flex;justify-content:space-between;gap:12px}.subgroup>summary::-webkit-details-marker{display:none}.subgroup>summary span{color:var(--muted);font-size:.76rem;font-weight:750}.ref-list{border-top:1px solid var(--line)}.ref-item{padding:14px 16px;border-bottom:1px solid var(--line)}.ref-item:last-child{border-bottom:0}.ref-q{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.ref-q strong{line-height:1.45}.ref-actions{display:flex;gap:6px;flex:0 0 auto}.ref-answer{display:none;color:#d8dbea;line-height:1.65;margin-top:11px;padding-top:11px;border-top:1px dashed var(--line);white-space:pre-wrap}.ref-answer.open{display:block}.master-toggle.on{border-color:rgba(157,243,199,.42);background:rgba(157,243,199,.08);color:var(--green)}.empty{border:1px dashed var(--line);border-radius:18px;padding:30px;text-align:center;color:var(--muted)}
.english-level{margin-bottom:24px}.english-level-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-end;border-bottom:1px solid var(--line);padding-bottom:9px;margin-bottom:10px}.english-level-head h2{margin:4px 0 0}.english-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.english-card{border:1px solid var(--line);background:linear-gradient(180deg,#151927,#10131f);border-radius:16px;padding:15px;display:flex;flex-direction:column;min-height:190px}.english-card h3{font-size:.94rem;margin:9px 0 6px}.english-card p{font-size:.79rem;line-height:1.5;color:var(--muted);margin:0;flex:1}.english-score{font-size:.72rem;color:#cbd2e5;margin:9px 0}.english-card.done{border-color:rgba(157,243,199,.25)}
.progress-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:14px}.progress-stat{padding:17px}.progress-stat b{display:block;font-size:1.7rem}.progress-stat span{color:var(--muted);font-size:.78rem}.progress-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:14px}.progress-layout>.panel{padding:17px}.panel-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:13px}.panel-title>div{display:flex;align-items:center;gap:10px}.panel-title>div>span{font-size:1.2rem}.panel-title strong{display:block}.panel-title small{display:block;color:var(--muted);margin-top:2px}.progress-list{display:grid;gap:9px}.progress-row{display:grid;grid-template-columns:minmax(150px,1fr) 2fr 70px;gap:10px;align-items:center;font-size:.82rem}.mistake-list{display:grid;gap:8px;max-height:520px;overflow:auto}.mistake-card{border:1px solid var(--line);background:#101420;border-radius:12px;padding:11px}.mistake-card strong{font-size:.8rem;line-height:1.4;display:block}.mistake-card small{display:block;color:var(--muted);margin-top:5px}.danger-zone{margin-top:14px;padding:17px;display:flex;justify-content:space-between;gap:14px;align-items:center}.danger-zone p{color:var(--muted);font-size:.8rem;line-height:1.5;margin:5px 0 0}.danger-btn{border:1px solid rgba(255,143,163,.38);background:rgba(255,143,163,.08);color:#ffdce3;padding:10px 12px;white-space:nowrap}
.sources{margin:0 0 50px;padding:15px}.sources summary{cursor:pointer;font-weight:900}.source-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;margin-top:12px}.source-links a{border:1px solid var(--line);background:#101420;color:#d9def0;text-decoration:none;border-radius:10px;padding:9px 10px;font-size:.76rem}.source-links a:hover{border-color:rgba(172,172,255,.35)}footer{border-top:1px solid var(--line);padding:22px 0 34px;color:var(--muted);font-size:.78rem}
@media(max-width:1150px){.category-grid,.english-grid{grid-template-columns:repeat(3,1fr)}.quick-grid{grid-template-columns:repeat(2,1fr)}.builder{grid-template-columns:1fr 1fr}.builder .primary-btn{grid-column:1/-1}.quiz-shell{grid-template-columns:1fr}.quiz-side{position:static}.progress-layout{grid-template-columns:1fr}.source-links{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){.nav-shell{align-items:flex-start;flex-wrap:wrap;padding:9px 0}.nav-tabs{width:100%;margin-left:0}.category-grid,.english-grid{grid-template-columns:repeat(2,1fr)}.reference-layout{grid-template-columns:1fr}.reference-side{height:auto;position:static}.ref-cats{grid-template-columns:repeat(2,minmax(0,1fr))}.progress-stats{grid-template-columns:repeat(2,1fr)}.pack-grid{grid-template-columns:1fr}.source-links{grid-template-columns:1fr}.break-row,.progress-row{grid-template-columns:1fr 65px}.break-row .mini-bar,.progress-row .mini-bar{grid-column:1/-1;grid-row:2}.danger-zone{align-items:flex-start;flex-direction:column}}
@media(max-width:560px){.shell{width:min(100% - 18px,1500px)}.view{padding-top:20px}.hero{padding:23px;border-radius:22px}.hero h1{font-size:clamp(2.4rem,13vw,4rem)}.quick-grid,.category-grid,.english-grid{grid-template-columns:1fr}.builder{grid-template-columns:1fr}.validation-actions{grid-template-columns:1fr}.ref-cats{grid-template-columns:1fr}.ref-q{flex-direction:column}.ref-actions{width:100%}.ref-actions button{flex:1}.progress-stats{grid-template-columns:1fr 1fr}.page-title{font-size:2.2rem}}

/* V5 · polish / organisation */
.cat-topline{display:flex;align-items:center;justify-content:space-between;gap:10px}
.cat-no{display:grid;place-items:center;min-width:34px;height:30px;padding:0 9px;border-radius:10px;background:linear-gradient(135deg,rgba(255,172,215,.9),rgba(172,172,255,.9));color:#0b0d16;font-weight:950;font-size:.74rem;box-shadow:0 8px 22px rgba(172,172,255,.13)}
.ref-memo{margin-top:12px;padding:10px 12px;border-left:3px solid var(--cyan);border-radius:0 11px 11px 0;background:rgba(157,231,255,.065);display:grid;gap:4px;color:#ddf7ff}
.ref-memo strong{font-size:.78rem}.ref-memo span{font-size:.79rem;line-height:1.55;color:#cde9f2}
.progress-extra-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:14px;margin-top:14px}.progress-extra{padding:17px}
.history-list,.prof-progress-list{display:grid;gap:8px}.history-card,.prof-progress-card{border:1px solid var(--line);background:#101420;border-radius:13px;padding:11px 12px;display:flex;align-items:center;justify-content:space-between;gap:12px}.history-card strong,.prof-progress-card strong{display:block;font-size:.82rem;line-height:1.35}.history-card small,.prof-progress-card small{display:block;color:var(--muted);font-size:.72rem;line-height:1.45;margin-top:4px}.empty.compact{padding:18px}
@media(min-width:1151px){.builder{grid-template-columns:minmax(210px,1.35fr) minmax(210px,1.05fr) 180px 120px auto}}
@media(max-width:900px){.progress-extra-grid{grid-template-columns:1fr}}
@media(max-width:560px){.history-card,.prof-progress-card{align-items:flex-start;flex-direction:column}.history-card .tiny-btn,.prof-progress-card .tiny-btn{width:100%}}
.chip.level-1{border-color:rgba(157,243,199,.28);color:#c9f8df;background:rgba(157,243,199,.055)}
.chip.level-2{border-color:rgba(172,172,255,.3);color:#e2e2ff;background:rgba(172,172,255,.06)}
.chip.level-3{border-color:rgba(255,211,110,.3);color:#ffe9ab;background:rgba(255,211,110,.06)}

/* V6 · Bibliothèque des QCM & corrigés PDF */
.prof-section-head{margin-top:34px}.pdf-library-head{margin-top:46px;padding-top:30px;border-top:1px solid var(--line)}
.pdf-library-toolbar{display:flex;align-items:end;justify-content:space-between;gap:16px;padding:14px 16px;margin-bottom:14px}.pdf-library-toolbar .field{width:min(560px,100%)}.pdf-count{font-size:.8rem;color:var(--muted);white-space:nowrap;padding-bottom:12px}
.pdf-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.pdf-card{padding:20px;display:flex;flex-direction:column;min-height:260px;position:relative;overflow:hidden}.pdf-card:after{content:"PDF";position:absolute;right:-8px;bottom:-15px;font-size:5.2rem;font-weight:950;letter-spacing:-.08em;color:rgba(255,255,255,.025);pointer-events:none}.pdf-card-top{display:flex;gap:13px;align-items:flex-start}.pdf-icon{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(255,172,215,.18),rgba(172,172,255,.14));border:1px solid rgba(255,255,255,.08);font-size:1.3rem;flex:0 0 auto}.pdf-kind{display:inline-block;color:var(--cyan);font-size:.7rem;font-weight:850;letter-spacing:.1em;text-transform:uppercase;margin-bottom:5px}.pdf-card h3{margin:0;font-size:1.16rem;line-height:1.35}.pdf-card>p{color:var(--muted);line-height:1.55;margin:14px 0}.pdf-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}.chip.subtle{opacity:.78}.pdf-card-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.pdf-card-actions a{text-decoration:none;display:inline-flex;align-items:center;justify-content:center}
.pdf-modal{position:fixed;inset:0;z-index:1000;background:rgba(5,7,12,.82);backdrop-filter:blur(10px);padding:18px;display:none;align-items:center;justify-content:center}.pdf-modal.open{display:flex}.pdf-dialog{width:min(1380px,100%);height:min(94vh,980px);background:#0d101a;border:1px solid #30364b;border-radius:24px;box-shadow:0 30px 100px rgba(0,0,0,.55);display:flex;flex-direction:column;overflow:hidden}.pdf-viewer-head{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 18px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#171a2a,#11141f)}.pdf-viewer-head h2{margin:4px 0 0;font-size:1.15rem}.pdf-viewer-head p{margin:4px 0 0;color:var(--muted);font-size:.78rem}.pdf-viewer-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.pdf-viewer-actions a{text-decoration:none;display:inline-flex;align-items:center}.pdf-frame-wrap{flex:1;min-height:0;background:#080a11}.pdf-frame-wrap iframe{width:100%;height:100%;border:0;background:#fff}.pdf-fallback{margin:0;padding:9px 16px;border-top:1px solid var(--line);font-size:.73rem;color:var(--muted);background:#11141f}.pdf-open{overflow:hidden}
@media(max-width:820px){.pdf-grid{grid-template-columns:1fr}.pdf-library-toolbar{align-items:stretch;flex-direction:column}.pdf-count{padding:0;white-space:normal}.pdf-modal{padding:8px}.pdf-dialog{height:96vh;border-radius:17px}.pdf-viewer-head{align-items:flex-start;flex-direction:column}.pdf-viewer-actions{width:100%}.pdf-viewer-actions>*{flex:1}.pdf-fallback{font-size:.68rem}}
@media(max-width:560px){.pdf-card-actions{flex-direction:column}.pdf-card-actions>*{width:100%}.pdf-viewer-actions{flex-direction:column}.pdf-viewer-actions>*{width:100%}}

/* V7 — navigation d'accueil compacte : un domaine à la fois, une seule porte vers le constructeur de quiz */
.subject-section-head{align-items:flex-end}
.subject-total{border:1px solid var(--line);background:#121624;color:#cfd4e4;border-radius:999px;padding:8px 11px;font-size:.78rem;font-weight:850}
.subject-explorer{display:grid;grid-template-columns:255px minmax(0,1fr);overflow:hidden;min-height:350px}
.domain-tabs{border-right:1px solid var(--line);padding:12px;display:grid;gap:8px;align-content:start;background:rgba(8,10,17,.2)}
.domain-tab{border:1px solid transparent;background:transparent;color:var(--muted);text-align:left;border-radius:14px;padding:12px 13px;display:grid;gap:4px;transition:.18s}
.domain-tab:hover{background:rgba(255,255,255,.035);color:#fff;border-color:var(--line)}
.domain-tab.active{background:linear-gradient(135deg,rgba(255,172,215,.12),rgba(172,172,255,.11));border-color:rgba(172,172,255,.3);color:#fff}
.domain-tab strong{font-size:.86rem;line-height:1.25}.domain-tab span{font-size:.7rem;color:var(--muted)}
.subject-explorer-main{padding:17px 18px 18px;min-width:0}
.subject-explorer-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-end;padding:2px 2px 14px;border-bottom:1px solid var(--line);margin-bottom:12px}
.subject-explorer-head .eyebrow{font-size:.65rem}.subject-explorer-head h3{font-size:1.22rem;margin:5px 0 3px}.subject-explorer-head p{margin:0;color:var(--muted);font-size:.82rem;line-height:1.45;max-width:720px}.subject-domain-count{flex:0 0 auto}
.subject-compact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
.subject-compact{width:100%;min-width:0;border:1px solid var(--line);background:linear-gradient(180deg,#151927,#11141f);color:var(--text);border-radius:15px;padding:12px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:11px;text-align:left;transition:.18s}
.subject-compact:hover{border-color:rgba(172,172,255,.42);transform:translateY(-1px);background:linear-gradient(180deg,#181c2e,#121522)}
.subject-id{display:grid;grid-template-columns:auto auto;align-items:center;gap:6px}.subject-id b{min-width:30px;height:30px;display:grid;place-items:center;border-radius:10px;background:linear-gradient(135deg,var(--pink),var(--violet));color:#0d1018;font-size:.73rem}.subject-id i{font-style:normal;width:30px;height:30px;display:grid;place-items:center;border-radius:10px;background:#1c2032;font-size:.95rem}
.subject-copy{min-width:0;display:grid;gap:3px}.subject-copy strong{font-size:.9rem}.subject-copy small{color:var(--muted);font-size:.73rem;line-height:1.35;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.subject-meta{display:flex;align-items:center;gap:6px;flex-wrap:nowrap}.subject-meta em{font-style:normal;border:1px solid var(--line);border-radius:999px;padding:4px 6px;color:#cdd2e3;background:#0f1320;font-size:.65rem;white-space:nowrap}.subject-meta b{font-size:1rem;color:var(--violet);padding-left:2px}
@media(max-width:980px){.subject-explorer{grid-template-columns:1fr}.domain-tabs{border-right:0;border-bottom:1px solid var(--line);grid-template-columns:repeat(4,minmax(0,1fr));overflow:auto}.domain-tab{min-width:155px}.subject-compact-grid{grid-template-columns:1fr}}
@media(max-width:620px){.subject-explorer-main{padding:13px}.domain-tabs{display:flex}.subject-explorer-head{align-items:flex-start;flex-direction:column}.subject-compact{grid-template-columns:auto minmax(0,1fr)}.subject-meta{grid-column:2;justify-content:flex-start}.subject-copy small{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.subject-total{display:none}}


/* V8 · navigation clarifiée + catalogue unifié Quiz & corrigés */
.section-note{
  border:1px solid var(--line);
  background:rgba(255,255,255,.025);
  color:var(--muted);
  border-radius:999px;
  padding:8px 11px;
  font-size:.76rem;
  font-weight:800;
}
.quick-section-head{align-items:flex-end}
.quick-card em{
  display:block;
  width:max-content;
  max-width:100%;
  margin:-4px 0 7px;
  padding:4px 7px;
  border:1px solid rgba(172,172,255,.2);
  border-radius:999px;
  color:#d8d8ff;
  background:rgba(172,172,255,.055);
  font-size:.62rem;
  line-height:1;
  letter-spacing:.08em;
  font-style:normal;
  font-weight:900;
}
.quick-card strong{font-size:1.02rem}

.quiz-plan{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:7px;
  margin-top:11px;
  padding:10px 12px;
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(255,255,255,.025);
  color:#d8dced;
  font-size:.78rem;
}
.quiz-plan>span{
  display:inline-flex;
  align-items:center;
  min-height:27px;
  padding:4px 8px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#111522;
}
.quiz-plan>span:first-child{
  border-color:rgba(255,172,215,.25);
  background:linear-gradient(135deg,rgba(255,172,215,.08),rgba(172,172,255,.08));
  color:#fff;
}
.quiz-plan b{margin-right:4px}
.quiz-plan small{
  flex-basis:100%;
  color:var(--amber);
  line-height:1.45;
  padding:2px 2px 0;
}
.quiz-plan.empty-plan{color:var(--muted)}

.extra-toolbar{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:16px;
  padding:14px 16px;
  margin:4px 0 14px;
}
.extra-toolbar .field{width:min(650px,100%)}
.extra-count{
  color:var(--muted);
  font-size:.78rem;
  font-weight:800;
  padding-bottom:11px;
  white-space:nowrap;
}
.extra-catalog{display:grid;gap:12px}
.extra-collection{
  padding:20px;
  overflow:hidden;
  position:relative;
}
.extra-collection::after{
  content:"";
  position:absolute;
  inset:auto -70px -95px auto;
  width:210px;
  height:210px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(172,172,255,.09),transparent 68%);
  pointer-events:none;
}
.extra-collection-head{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:13px;
  align-items:start;
}
.extra-collection-icon{
  width:48px;
  height:48px;
  display:grid;
  place-items:center;
  border:1px solid var(--line);
  border-radius:15px;
  background:linear-gradient(135deg,rgba(255,172,215,.13),rgba(172,172,255,.13));
  font-size:1.25rem;
}
.extra-collection-head h2{
  margin:5px 0 5px;
  font-size:1.35rem;
}
.extra-collection-head p{
  margin:0;
  max-width:900px;
  color:var(--muted);
  line-height:1.55;
  font-size:.88rem;
}
.extra-tags{
  display:flex;
  gap:6px;
  flex-wrap:wrap;
  margin:15px 0 12px 61px;
}
.extra-resource-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
  margin-left:61px;
}
.extra-resource-grid > :only-child{grid-column:1 / -1}
.extra-resource{
  min-width:0;
  border:1px solid var(--line);
  border-radius:16px;
  background:#101420;
  padding:14px;
  display:grid;
  align-content:start;
  gap:7px;
}
.extra-resource-quiz{border-color:rgba(255,172,215,.16)}
.extra-resource-pdf{border-color:rgba(157,231,255,.16)}
.extra-resource-kicker{
  color:var(--muted);
  font-size:.66rem;
  font-weight:900;
  letter-spacing:.1em;
  text-transform:uppercase;
}
.extra-resource strong{
  font-size:1.08rem;
  line-height:1.25;
}
.extra-resource p{
  color:var(--muted);
  font-size:.78rem;
  line-height:1.5;
  margin:0;
  min-height:2.4em;
}
.extra-status{
  color:#d9dcef;
  font-size:.72rem;
  font-weight:800;
}
.extra-resource .primary-btn,
.extra-resource .secondary-btn{
  width:max-content;
  margin-top:3px;
}
.extra-pdf-actions{
  display:flex;
  align-items:center;
  gap:11px;
  flex-wrap:wrap;
  margin-top:3px;
}
.text-link{
  color:#cfd7ef;
  text-decoration:none;
  font-size:.74rem;
  font-weight:800;
}
.text-link:hover{text-decoration:underline;color:#fff}

@media(max-width:820px){
  .section-note{display:none}
  .extra-toolbar{align-items:stretch;flex-direction:column}
  .extra-count{padding:0;white-space:normal}
  .extra-resource-grid{grid-template-columns:1fr}
}
@media(max-width:620px){
  .extra-collection{padding:15px}
  .extra-collection-head{grid-template-columns:1fr}
  .extra-collection-icon{width:42px;height:42px}
  .extra-tags,.extra-resource-grid{margin-left:0}
  .extra-resource .primary-btn,.extra-resource .secondary-btn{width:100%}
  .extra-pdf-actions{align-items:stretch;flex-direction:column}
  .text-link{text-align:center;padding:5px}
}

/* Windows Server — séries thématiques P0 → P10 */
.ws-series{margin-bottom:22px}
.ws-series-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:18px}
.ws-series-head h2{margin:.2rem 0 .45rem;font-size:clamp(1.35rem,2vw,1.8rem)}
.ws-series-head p{margin:0;color:var(--muted);max-width:760px;line-height:1.55}
.ws-series-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.ws-series-card{appearance:none;width:100%;min-width:0;text-align:left;border:1px solid var(--line);background:rgba(255,255,255,.025);color:var(--text);border-radius:16px;padding:15px;cursor:pointer;display:flex;flex-direction:column;gap:8px;transition:border-color .18s ease,background .18s ease,transform .18s ease}
.ws-series-card:hover{border-color:rgba(147,129,255,.58);background:rgba(147,129,255,.07);transform:translateY(-1px)}
.ws-series-card:focus-visible{outline:2px solid var(--violet);outline-offset:2px}
.ws-series-card-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.ws-series-code{font-size:.78rem;font-weight:800;letter-spacing:.08em;color:var(--cyan)}
.ws-series-count{font-size:.75rem;color:var(--muted)}
.ws-series-card strong{font-size:1rem;line-height:1.25}
.ws-series-card small{color:var(--muted);line-height:1.45;font-size:.82rem}
.ws-series-card b{font-size:.8rem;color:var(--cyan);margin-top:auto}
@media (max-width:900px){.ws-series-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:620px){.ws-series-head{display:block}.ws-series-head .chip{display:inline-flex;margin-top:12px}.ws-series-grid{grid-template-columns:1fr}}

/* V10 · Quiz & corrigés repliables */
.qa-fold{
  padding:0;
  margin-bottom:14px;
  overflow:hidden;
}
.qa-fold-summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 20px;
  user-select:none;
}
.qa-fold-summary::-webkit-details-marker{display:none}
.qa-fold-summary:focus-visible{outline:2px solid var(--violet);outline-offset:-3px}
.qa-fold-copy{display:grid;gap:4px;min-width:0}
.qa-fold-copy>strong{font-size:1.22rem;line-height:1.25;color:var(--text)}
.qa-fold-copy>small{color:var(--muted);font-size:.78rem;line-height:1.4}
.qa-fold-toggle,.extra-collection-toggle{
  width:30px;
  height:30px;
  border-radius:9px;
  border:1px solid var(--line-2);
  background:rgba(255,255,255,.035);
  flex:0 0 auto;
  position:relative;
}
.qa-fold-toggle:before,.qa-fold-toggle:after,.extra-collection-toggle:before,.extra-collection-toggle:after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  width:11px;height:1.5px;
  background:#dce1ef;
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.qa-fold-toggle:after,.extra-collection-toggle:after{transform:translate(-50%,-50%) rotate(90deg);transition:transform .16s ease}
.qa-fold[open]>.qa-fold-summary .qa-fold-toggle:after,
.extra-collection[open]>.extra-collection-summary .extra-collection-toggle:after{transform:translate(-50%,-50%) rotate(0deg)}
.qa-fold-body{border-top:1px solid var(--line);padding:18px 20px 20px}
.qa-fold-intro{margin:0 0 16px;color:var(--muted);line-height:1.55;font-size:.86rem;max-width:900px}
.qa-fold .ws-series{margin-bottom:0}
.qa-fold .extra-toolbar{padding:0 0 16px;margin:0 0 16px;border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent;box-shadow:none}

.extra-collection{
  padding:0;
  overflow:hidden;
}
.extra-collection-summary{
  list-style:none;
  cursor:pointer;
  display:grid;
  grid-template-columns:46px minmax(0,1fr) auto;
  gap:14px;
  align-items:center;
  padding:15px 17px;
}
.extra-collection-summary::-webkit-details-marker{display:none}
.extra-collection-summary:focus-visible{outline:2px solid var(--violet);outline-offset:-3px}
.extra-collection-summary-copy{display:grid;gap:3px;min-width:0}
.extra-collection-summary-copy strong{font-size:1.06rem;line-height:1.3}
.extra-collection-summary-copy small{color:var(--muted);font-size:.78rem;line-height:1.45;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.extra-collection-meta{display:flex;align-items:center;gap:9px}
.extra-collection-body{border-top:1px solid var(--line);padding:0 17px 17px}
.extra-collection-body .extra-tags{margin:14px 0 12px 60px}
.extra-collection-body .extra-resource-grid{margin-left:60px}

@media(max-width:620px){
  .qa-fold-summary{padding:15px}
  .qa-fold-body{padding:15px}
  .qa-fold-copy>strong{font-size:1.05rem}
  .extra-collection-summary{grid-template-columns:42px minmax(0,1fr) auto;padding:13px}
  .extra-collection-summary-copy small{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
  .extra-collection-meta .chip{display:none}
  .extra-collection-body{padding:0 13px 13px}
  .extra-collection-body .extra-tags,.extra-collection-body .extra-resource-grid{margin-left:0}
}