@font-face{font-family:Anton;src:url(/fonts/Anton.ttf);font-display:swap}
@font-face{font-family:Inter;src:url(/fonts/Inter-Regular.ttf);font-weight:400;font-display:swap}
@font-face{font-family:Inter;src:url(/fonts/Inter-Medium.ttf);font-weight:500;font-display:swap}
@font-face{font-family:Inter;src:url(/fonts/Inter-SemiBold.ttf);font-weight:600;font-display:swap}
@font-face{font-family:Inter;src:url(/fonts/Inter-Bold.ttf);font-weight:700;font-display:swap}

:root{
  --ink:#16181B;--red:#D62828;--red-tint:#FCECEC;--steel:#6B7480;--line:#E3E5E8;--tint:#F6F7F8;
  --bg:#F3F3F1;--card:#FFFFFF;--text:#16181B;--muted:#6B7480;--ok:#1E8E4F;--ok-tint:#E7F5EC;--bad-tint:#FCECEC;
  --hand:#1F4FA8;--shadow:0 1px 2px rgba(22,24,27,.06),0 6px 24px rgba(22,24,27,.06);
  --r:16px;--side:240px;--ease:cubic-bezier(.2,.8,.2,1);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --bg:#000;--card:#121315;--text:#EDEEEF;--muted:#9097A0;--line:#25272B;--tint:#1A1B1E;--red-tint:#2A1112;
  --ok-tint:#0F2418;--bad-tint:#2A1112;--hand:#8FB0FF;--shadow:none;color-scheme:dark}}
:root[data-theme=dark]{--bg:#000;--card:#121315;--text:#EDEEEF;--muted:#9097A0;--line:#25272B;--tint:#1A1B1E;--red-tint:#2A1112;
  --ok-tint:#0F2418;--bad-tint:#2A1112;--hand:#8FB0FF;--shadow:none;color-scheme:dark}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:Inter,system-ui,sans-serif;background:var(--bg);color:var(--text);font-size:16px;line-height:1.45;
  -webkit-font-smoothing:antialiased;min-height:100vh}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
input{font:inherit;color:inherit}
.anton{font-family:Anton,Impact,sans-serif;font-weight:400;letter-spacing:.02em}
.muted{color:var(--muted)}
.red{color:var(--red)}

/* ---------- shell */
.shell{display:flex;min-height:100vh}
.side{position:fixed;inset:0 auto 0 0;width:var(--side);background:var(--ink);color:#fff;display:flex;flex-direction:column;padding:22px 14px;z-index:20}
.side .logo{display:flex;align-items:center;gap:10px;padding:4px 10px 26px}
.side .logo b{font-family:Anton;font-weight:400;font-size:24px;letter-spacing:.06em}
.side nav a{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:12px;color:rgba(255,255,255,.72);font-weight:500;font-size:15px;transition:background .2s,color .2s}
.side nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.side nav a.on{background:rgba(255,255,255,.1);color:#fff}
.side nav a.on svg{color:var(--red)}
.side .foot{margin-top:auto;font-size:12px;color:rgba(255,255,255,.45);padding:0 12px;line-height:1.5}
.main{flex:1;margin-left:var(--side);min-width:0;padding:32px 40px 80px}
.wrap{max-width:1120px;margin:0 auto}
.tabbar{display:none}
@media (max-width:860px){
  .side{display:none}
  .main{margin-left:0;padding:18px 16px calc(96px + env(safe-area-inset-bottom))}
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:30;background:color-mix(in srgb,var(--card) 88%,transparent);
    backdrop-filter:saturate(1.6) blur(18px);-webkit-backdrop-filter:saturate(1.6) blur(18px);border-top:1px solid var(--line);
    padding:8px 6px calc(8px + env(safe-area-inset-bottom))}
  .tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:11px;font-weight:600;color:var(--muted);padding:4px 0}
  .tabbar a.on{color:var(--text)}
  .tabbar a.on svg{color:var(--red)}
}
svg.i{width:22px;height:22px;flex:none}

/* ---------- headings */
.top{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.kick{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--red)}
h1.big{font-family:Anton;font-weight:400;font-size:clamp(30px,5vw,44px);line-height:1.02;letter-spacing:.01em;margin-top:6px}
h2.sec{font-family:Anton;font-weight:400;font-size:20px;letter-spacing:.05em;text-transform:uppercase;margin:34px 0 14px}
.back{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-weight:600;font-size:14px;margin-bottom:14px}
.back:hover{color:var(--text)}

/* ---------- cards */
.box{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:1100px){.g4{grid-template-columns:repeat(3,1fr)}}
@media (max-width:860px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.g2,.g3,.g4{grid-template-columns:1fr}.g4.keep2{grid-template-columns:repeat(2,1fr)}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border-radius:12px;font-weight:700;font-size:15px;
  background:var(--ink);color:#fff;transition:transform .15s var(--ease),opacity .2s;white-space:nowrap}
:root[data-theme=dark] .btn,.btn.redb{background:var(--red)}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .btn{background:var(--red)}}
.btn:active{transform:scale(.97)}
.btn.ghost{background:transparent;color:var(--text);border:1.5px solid var(--line)}
.btn.small{height:38px;padding:0 14px;font-size:14px;border-radius:10px}
.btn[disabled]{opacity:.45;pointer-events:none}
.chip{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 13px;border-radius:999px;border:1.5px solid var(--line);font-size:13.5px;font-weight:600;color:var(--muted);white-space:nowrap;transition:all .2s}
.chip.on{border-color:var(--text);color:var(--text);background:var(--card)}
.chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}

/* ---------- home */
.hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;border-radius:22px;padding:28px;display:grid;grid-template-columns:1.3fr 1fr;gap:24px;align-items:center}
.hero .hand{font-family:Noteworthy,Caveat,cursive;font-size:22px;color:#FF9C9C;transform:rotate(-1.5deg);display:inline-block}
.hero h1{font-family:Anton;font-weight:400;font-size:clamp(30px,4.6vw,46px);line-height:1;margin:8px 0 10px;letter-spacing:.01em}
.hero p{color:rgba(255,255,255,.72);font-size:15px;max-width:440px}
.hero .cta{margin-top:20px;display:flex;gap:10px;flex-wrap:wrap}
.hero .btn{background:var(--red)}
.hero .btn.ghost{border-color:rgba(255,255,255,.22);color:#fff;background:transparent}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:14px}
.stat b{display:block;font-family:Anton;font-weight:400;font-size:30px;line-height:1}
.stat span{font-size:11.5px;color:rgba(255,255,255,.6);font-weight:600;letter-spacing:.04em;text-transform:uppercase}
@media (max-width:860px){.hero{grid-template-columns:1fr;padding:22px;border-radius:18px}}

.cont{display:flex;gap:16px;align-items:center;padding:14px;margin-top:14px}
.cont .th{width:86px;height:64px;border-radius:10px;background-size:cover;background-position:center;flex:none}
.cont .tx{flex:1;min-width:0}
.cont .tx b{display:block;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cont .tx span{font-size:13px;color:var(--muted)}

/* module tiles */
.mod{position:relative;overflow:hidden;display:flex;flex-direction:column;transition:transform .25s var(--ease),box-shadow .25s}
.mod:hover{transform:translateY(-2px)}
.mod .ph{height:118px;background-size:cover;background-position:center;position:relative}
.mod .ph::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(22,24,27,0) 30%,rgba(22,24,27,.55))}
.mod .code{position:absolute;left:12px;top:12px;z-index:1;background:var(--red);color:#fff;font-family:Anton;font-size:15px;padding:2px 8px;border-radius:6px;letter-spacing:.04em}
.mod .bd{padding:12px 14px 14px;display:flex;flex-direction:column;gap:8px;flex:1}
.mod .nm{font-family:Anton;font-weight:400;font-size:18px;letter-spacing:.03em;text-transform:uppercase;line-height:1.1}
.mod .meta{font-size:12.5px;color:var(--muted);margin-top:auto}
.bar{height:6px;border-radius:99px;background:var(--line);overflow:hidden}
.bar i{display:block;height:100%;background:var(--red);border-radius:99px;transition:width .6s var(--ease)}
.mod.locked .ph{filter:grayscale(1) brightness(.75)}
.mod.locked .lock{position:absolute;right:12px;top:12px;z-index:1;background:rgba(0,0,0,.6);color:#fff;border-radius:99px;padding:4px 10px;font-size:12px;font-weight:700}

/* module page */
.mhead{position:relative;border-radius:22px;overflow:hidden;min-height:220px;display:flex;align-items:flex-end;color:#fff;background:var(--ink) center/cover}
.mhead::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(22,24,27,.92) 0%,rgba(22,24,27,.7) 45%,rgba(22,24,27,.15))}
.mhead .in{position:relative;padding:26px 28px;max-width:640px}
.mhead .k{font-family:Anton;color:#FF8A8A;letter-spacing:.08em;font-size:15px}
.mhead h1{font-family:Anton;font-weight:400;font-size:clamp(32px,5vw,50px);line-height:.98;margin:6px 0 10px}
.mhead .hand{font-family:Noteworthy,Caveat,cursive;font-size:20px;color:#fff;opacity:.9;transform:rotate(-1.2deg);display:inline-block}
.mhead .ex{font-size:13px;color:rgba(255,255,255,.7);margin-top:10px}
.mhead .credit{position:absolute;right:12px;bottom:8px;font-size:10px;color:rgba(255,255,255,.55)}
.tabs{display:flex;gap:6px;margin:20px 0 6px;border-bottom:1px solid var(--line)}
.tabs a{padding:12px 14px;font-weight:700;font-size:15px;color:var(--muted);border-bottom:2.5px solid transparent;margin-bottom:-1px}
.tabs a.on{color:var(--text);border-color:var(--red)}
.lgroup{margin-top:22px}
.lgroup h4{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.lrow{display:flex;align-items:center;gap:14px;padding:13px 16px;border-bottom:1px solid var(--line);transition:background .15s}
.lrow:last-child{border-bottom:0}
.lrow:hover{background:var(--tint)}
.lrow .n{width:30px;height:30px;border-radius:50%;border:1.5px solid var(--line);display:grid;place-items:center;font-size:12px;font-weight:700;color:var(--muted);flex:none}
.lrow.done .n{background:var(--ok);border-color:var(--ok);color:#fff}
.lrow .t{flex:1;min-width:0}
.lrow .t b{display:block;font-size:15px;font-weight:600}
.lrow .t span{display:block;font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lv{font-size:11px;font-weight:700;color:var(--muted);border:1px solid var(--line);border-radius:6px;padding:1px 6px;flex:none}

/* ---------- lesson reader (blocks come from the PDF engine) */
.reader{position:relative;-webkit-user-select:none;user-select:none}
.lhead{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;border-bottom:2px solid var(--text);padding-bottom:12px;margin-bottom:18px}
.lhead .t{font-family:Anton;font-weight:400;font-size:clamp(26px,4vw,38px);line-height:1.02}
.lhead .r{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:6px}
.lbody{display:grid;grid-template-columns:1fr 2fr;gap:18px;align-items:start}
.lbody.three{grid-template-columns:repeat(var(--nc,3),1fr)}
.lbody .col,.lbody .pair .col{display:flex;flex-direction:column;gap:14px;min-width:0}
.lbody .pair{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:1000px){.lbody,.lbody.three{grid-template-columns:1fr}}
@media (max-width:640px){.lbody .pair{grid-template-columns:1fr}}
.lbody .card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.lbody .card h3{background:var(--ink);color:#fff;font-family:Anton;font-weight:400;font-size:15px;letter-spacing:.07em;text-transform:uppercase;padding:8px 14px;border-left:6px solid var(--red)}
.lbody .cb{padding:12px 16px 14px;font-size:15.5px;line-height:1.55}
.lbody .cb p+p,.lbody .cb ul+p,.lbody .cb p+ul{margin-top:7px}
.lbody .cb ul{padding-left:18px}
.lbody .cb li{margin:4px 0}
.lbody .cb li::marker{color:var(--red)}
.lbody b{font-weight:700}
.lbody b.red,.lbody .red{color:var(--red)}
.lbody .key{color:var(--red);font-weight:700}
.lbody .trap{background:var(--red-tint);border-left:6px solid var(--red);border-radius:12px;padding:12px 16px;font-size:15px;line-height:1.5}
.lbody .trap .lab{display:block;font-family:Noteworthy,Caveat,cursive;font-weight:700;font-size:22px;color:var(--red);transform:rotate(-1.5deg);transform-origin:left;margin-bottom:2px}
.lbody .note{font-family:Noteworthy,Caveat,cursive;font-size:21px;line-height:1.3;color:var(--hand);transform:rotate(-1.2deg);padding:0 8px}
.lbody .note b{color:var(--hand)}
.lbody .keybox{background:var(--ink);color:#fff;border-radius:12px;padding:14px 16px;font-size:15.5px;font-weight:600;line-height:1.45}
:root[data-theme=dark] .lbody .keybox{background:#1E2024}
.lbody .keybox b{color:#FF8A8A}
.lbody .fig{border:1px solid var(--line);border-radius:14px;padding:10px;background:#fff;margin:0}
.lbody .fig svg{display:block;width:100%;height:auto;max-height:520px}
.lbody figcaption{font-size:12.5px;color:var(--muted);margin-top:6px;line-height:1.4}
.lbody .fig figcaption{color:#6B7480}
.lbody .photo{margin:0}
.lbody .photo .ph{background-size:cover;border-radius:14px;height:240px;background-color:var(--tint)}
.lbody .sh{font-family:Anton;font-weight:400;font-size:16px;letter-spacing:.06em;color:var(--red);text-transform:uppercase;border-bottom:2px solid var(--red);padding-bottom:3px}
.lbody table{border-collapse:collapse;width:100%;font-size:14px}
.lbody td,.lbody th{border:1px solid var(--line);padding:5px 7px;text-align:left}
.lnav{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:28px;padding-top:18px;border-top:1px solid var(--line)}
.lnav .btn{min-width:0}
.wm{position:fixed;inset:0;pointer-events:none;z-index:5;overflow:hidden;opacity:.045}
.wm div{position:absolute;inset:-50%;display:flex;flex-wrap:wrap;gap:70px 90px;transform:rotate(-24deg);font-weight:700;font-size:15px;align-content:flex-start;color:var(--text)}
.progress-top{position:fixed;left:0;right:0;top:0;height:3px;z-index:40;background:transparent}
.progress-top i{display:block;height:100%;background:var(--red);transition:width .3s}
@media (min-width:861px){.progress-top{left:var(--side)}}

/* ---------- quiz */
.qwrap{max-width:760px;margin:0 auto}
.qtop{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.qtop .bar{flex:1;height:8px}
.qtop .cnt{font-weight:700;font-size:14px;color:var(--muted);white-space:nowrap}
.qcard{padding:24px}
.qcard .sec{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--red);margin-bottom:10px}
.qcard .q{font-size:20px;font-weight:600;line-height:1.4}
.opts{display:flex;flex-direction:column;gap:10px;margin-top:20px}
.opt{display:flex;gap:14px;align-items:flex-start;text-align:left;padding:15px 16px;border:1.5px solid var(--line);border-radius:14px;background:var(--card);font-size:16px;line-height:1.4;transition:border-color .2s,background .2s,transform .12s}
.opt:hover{border-color:var(--muted)}
.opt:active{transform:scale(.99)}
.opt .l{width:28px;height:28px;border-radius:8px;background:var(--tint);display:grid;place-items:center;font-weight:800;font-size:13px;flex:none;color:var(--muted)}
.opt.sel{border-color:var(--text)}
.opt.sel .l{background:var(--text);color:var(--card)}
.opt.ok{border-color:var(--ok);background:var(--ok-tint)}
.opt.ok .l{background:var(--ok);color:#fff}
.opt.bad{border-color:var(--red);background:var(--bad-tint)}
.opt.bad .l{background:var(--red);color:#fff}
.opt[disabled]{cursor:default}
.why{margin-top:16px;padding:14px 16px;border-radius:14px;background:var(--tint);font-size:15px;line-height:1.5;animation:rise .35s var(--ease)}
.why b{display:block;font-size:12px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:4px}
.why.ok b{color:var(--ok)}.why.bad b{color:var(--red)}
.qfoot{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:18px}
@keyframes rise{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.result{text-align:center;padding:36px 24px}
.result .score{font-family:Anton;font-size:80px;line-height:1}
.result .pass{display:inline-block;margin-top:10px;padding:6px 14px;border-radius:99px;font-weight:800;font-size:13px;letter-spacing:.08em}
.result .pass.y{background:var(--ok-tint);color:var(--ok)}.result .pass.n{background:var(--bad-tint);color:var(--red)}
.timer{font-family:Anton;font-size:22px;letter-spacing:.04em;font-variant-numeric:tabular-nums}
.timer.low{color:var(--red)}
.qgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(38px,1fr));gap:6px;margin-top:16px}
.qgrid button{height:38px;border-radius:8px;border:1.5px solid var(--line);font-size:12.5px;font-weight:700;color:var(--muted)}
.qgrid button.a{background:var(--text);color:var(--card);border-color:var(--text)}
.qgrid button.cur{border-color:var(--red);color:var(--red)}
.qgrid button.a.cur{background:var(--red);border-color:var(--red);color:#fff}
.qgrid button.ok{background:var(--ok);border-color:var(--ok);color:#fff}
.qgrid button.bad{background:var(--red);border-color:var(--red);color:#fff}

/* ---------- practice hub */
.prow{display:flex;align-items:center;gap:14px;padding:14px 16px;border-bottom:1px solid var(--line)}
.prow:last-child{border-bottom:0}
.prow .c{background:var(--red);color:#fff;font-family:Anton;font-size:14px;padding:2px 8px;border-radius:6px;flex:none;min-width:46px;text-align:center}
.prow .t{flex:1;min-width:0}
.prow .t b{display:block;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.prow .t span{font-size:12.5px;color:var(--muted)}
.ring{--p:0;width:44px;height:44px;border-radius:50%;background:conic-gradient(var(--red) calc(var(--p)*1%),var(--line) 0);display:grid;place-items:center;flex:none}
.ring::after{content:attr(data-v);width:34px;height:34px;border-radius:50%;background:var(--card);display:grid;place-items:center;font-size:11px;font-weight:800}

/* ---------- login */
.login{min-height:100vh;display:grid;grid-template-columns:1.1fr 1fr}
.login .vis{position:relative;background:var(--ink) center/cover;color:#fff;display:flex;flex-direction:column;justify-content:flex-end;padding:44px}
.login .vis::before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(22,24,27,.95) 10%,rgba(22,24,27,.2) 70%)}
.login .vis>*{position:relative}
.login .vis h2{font-family:Anton;font-weight:400;font-size:clamp(34px,4vw,56px);line-height:.98}
.login .vis .hand{font-family:Noteworthy,Caveat,cursive;font-size:24px;color:#FF9C9C;transform:rotate(-1.5deg);display:inline-block;margin-top:10px}
.login .vis ul{list-style:none;margin-top:22px;display:grid;gap:8px;color:rgba(255,255,255,.8);font-size:15px}
.login .vis li::before{content:"";display:inline-block;width:9px;height:9px;background:var(--red);border-radius:2px;margin-right:10px}
.login .form{display:flex;align-items:center;justify-content:center;padding:40px 24px;background:var(--bg)}
.login .form>div{width:100%;max-width:400px}
.field{display:block;margin-top:16px}
.field span{display:block;font-size:13px;font-weight:700;margin-bottom:6px}
.field input{width:100%;height:52px;border-radius:12px;border:1.5px solid var(--line);background:var(--card);padding:0 16px;font-size:16px;outline:none;transition:border-color .2s}
.field input:focus{border-color:var(--text)}
.field small{display:block;font-size:12.5px;color:var(--muted);margin-top:6px}
.err{margin-top:14px;padding:12px 14px;border-radius:12px;background:var(--bad-tint);color:var(--red);font-size:14px;font-weight:600;line-height:1.4}
@media (max-width:860px){.login{grid-template-columns:1fr}.login .vis{min-height:300px;padding:26px 20px}.login .vis ul{display:none}}

/* misc */
.empty{padding:28px;text-align:center;color:var(--muted)}
.row{display:flex;align-items:center;gap:10px}
.sp{flex:1}
.seg{display:inline-flex;background:var(--tint);border-radius:12px;padding:4px;gap:4px}
.seg button{padding:8px 14px;border-radius:9px;font-weight:700;font-size:14px;color:var(--muted)}
.seg button.on{background:var(--card);color:var(--text);box-shadow:var(--shadow)}
.list .li{display:flex;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid var(--line)}
.list .li:last-child{border-bottom:0}
.toast{position:fixed;left:50%;bottom:110px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 18px;border-radius:12px;font-weight:600;font-size:14px;z-index:60;animation:rise .3s var(--ease)}
.view{animation:fade .35s var(--ease)}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.spin{width:28px;height:28px;border:3px solid var(--line);border-top-color:var(--red);border-radius:50%;animation:sp 0.8s linear infinite;margin:60px auto}
@keyframes sp{to{transform:rotate(360deg)}}
.upsell{display:flex;gap:16px;align-items:center;padding:18px;border-radius:18px;background:var(--red);color:#fff;margin-top:18px}
.upsell b{font-family:Anton;font-weight:400;font-size:20px;letter-spacing:.03em}
.upsell .btn{background:#fff;color:var(--red)}
@media (max-width:560px){.upsell{flex-direction:column;align-items:flex-start}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}
@media print{body{display:none!important}}
:root[data-theme=dark] .btn.ghost{background:transparent}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .btn.ghost{background:transparent}}
.hero .btn.ghost{background:transparent!important}

/* ---------- refonte 30 oct */
.langs{display:inline-flex;gap:18px}
.langs button{font-weight:700;font-size:14px;letter-spacing:.06em;color:var(--muted);padding:6px 0;border-bottom:2px solid transparent;transition:color .2s,border-color .2s}
.langs button.on{color:var(--text);border-color:var(--red)}
.hero .hk{margin-top:18px;font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:#FF9C9C}
.hero h1{line-height:1.08;margin:4px 0 12px;padding-top:2px}
.stat span{display:block;line-height:1.35;margin-top:4px}
.mstats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:14px}
.mstats>div{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.mstats b{display:block;font-family:Anton;font-weight:400;font-size:26px;line-height:1.05}
.mstats b small{font-size:15px;color:var(--muted)}
.mstats span{display:block;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:2px 0 10px}
@media (max-width:560px){.mstats{gap:8px}.mstats>div{padding:12px}.mstats b{font-size:21px}.mstats span{font-size:10.5px}}
.resume{display:flex;align-items:center;gap:12px;padding:16px 18px;margin-top:20px;border-color:var(--red)}
.resume b{flex:1}.resume svg:first-child{color:var(--red)}
.lrow svg{color:var(--muted);flex:none}
.ring::after{font-size:10px}

/* page reader: same frame for every page, bar always at the same place */
.pv{max-width:1100px;margin:0 auto;padding-bottom:90px}
.pv-h{display:flex;align-items:baseline;justify-content:space-between;gap:14px;margin-bottom:12px}
.pv-h h1{font-family:Anton;font-weight:400;font-size:clamp(22px,3.2vw,32px);line-height:1.1;letter-spacing:.01em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pv-h span{font-weight:700;color:var(--muted);font-size:14px;white-space:nowrap}
.pv-page{position:relative;aspect-ratio:297/210;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 1px 2px rgba(0,0,0,.08),0 18px 50px -20px rgba(0,0,0,.35);cursor:zoom-in;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
.pv-page img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;pointer-events:none}
.pv-wm{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-around;align-items:center;pointer-events:none;opacity:.07;transform:rotate(-18deg) scale(1.3)}
.pv-wm span{font-weight:700;font-size:clamp(10px,1.6vw,18px);color:#16181B;white-space:nowrap;letter-spacing:.04em}
.pv-hint{text-align:center;font-size:12.5px;color:var(--muted);margin-top:10px}
.pv-bar{position:fixed;left:var(--side);right:0;bottom:0;z-index:25;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;
  padding:12px max(16px,calc((100% - 1100px)/2)) calc(12px + env(safe-area-inset-bottom));background:color-mix(in srgb,var(--card) 90%,transparent);
  backdrop-filter:saturate(1.6) blur(18px);-webkit-backdrop-filter:saturate(1.6) blur(18px);border-top:1px solid var(--line)}
.pv-bar .btn{min-width:132px}
.pv-bar .btn.off{visibility:hidden}
.pv-c{text-align:center}.pv-c b{font-size:13px;color:var(--muted)}.pv-c .bar{height:4px;margin-top:6px}
@media (max-width:860px){.pv-bar{left:0;bottom:calc(62px + env(safe-area-inset-bottom));padding:10px 16px}.pv-bar .btn{min-width:0;padding:0 14px}.pv-bar .btn span{display:none}.pv{padding-bottom:150px}.pv-h h1{white-space:normal}}
.zoom{position:fixed;inset:0;z-index:80;background:rgba(0,0,0,.92);overflow:auto;-webkit-overflow-scrolling:touch}
.zoom-in{position:relative;margin:auto;min-width:100%}
.zoom-in img{display:block;width:100%;height:auto;background:#fff}
.zoom-bar{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom));transform:translateX(-50%);display:flex;gap:8px;z-index:81}
.zoom-bar button{background:#fff;color:#16181B;font-weight:800;font-size:16px;min-width:48px;height:46px;padding:0 16px;border-radius:12px}

/* richer explanations */
.why p+p{margin-top:8px}
.why .tip{padding:10px 12px;border-radius:10px;background:var(--card);font-size:14.5px}
.why .tip b{display:inline;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--red);margin-right:4px}
.hero h1{text-transform:uppercase}
@media (min-width:861px){.pv-page{max-width:calc((100vh - 250px) * 297 / 210);margin:0 auto}.pv-h{max-width:calc((100vh - 250px) * 297 / 210);margin-left:auto;margin-right:auto}}

/* ---------- v3: top bar like Vectored / Pilote Autrement */
.side{display:none!important}
.main{margin-left:0!important;padding:28px 40px 80px}
.top-bar{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 72%,transparent);backdrop-filter:saturate(1.8) blur(20px);-webkit-backdrop-filter:saturate(1.8) blur(20px);border-bottom:1px solid color-mix(in srgb,var(--line) 70%,transparent)}
.tb-in{max-width:1200px;margin:0 auto;height:64px;padding:0 24px;display:flex;align-items:center;gap:28px}
.top-bar .logo{display:flex;align-items:center;gap:10px;color:var(--text)}
.top-bar .logo img{filter:var(--logo-filter,none)}
.top-bar .logo b{font-family:Anton;font-weight:400;font-size:21px;letter-spacing:.07em}
.tb-nav{display:flex;gap:4px;margin-left:8px}
.tb-nav a{padding:8px 14px;border-radius:10px;font-weight:600;font-size:14.5px;color:var(--muted);transition:color .2s,background .2s}
.tb-nav a:hover{color:var(--text);background:color-mix(in srgb,var(--text) 6%,transparent)}
.tb-nav a.on{color:var(--text);background:color-mix(in srgb,var(--text) 8%,transparent)}
.tb-r{margin-left:auto;display:flex;align-items:center;gap:18px}
.tb-r .langs{gap:12px}.tb-r .langs button{font-size:13px;padding:4px 0}
.avatar{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:14px;background:var(--red);color:#fff;box-shadow:0 0 0 2px var(--bg),0 0 0 3px transparent;transition:box-shadow .2s}
.avatar.on,.avatar:hover{box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--red)}
:root{--logo-filter:invert(1) hue-rotate(180deg) saturate(1.4)}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--logo-filter:none}}
:root[data-theme=dark]{--logo-filter:none}
@media (max-width:860px){.tb-in{height:56px;padding:0 16px;gap:12px}.tb-nav{display:none}.top-bar .logo b{font-size:18px}.main{padding:18px 16px calc(96px + env(safe-area-inset-bottom))!important}}
.progress-top{top:0;left:0!important;z-index:45}
.pv-bar{left:0!important}

/* module tools + practice cards */
.mt-head{display:flex;align-items:center;gap:16px;margin-bottom:6px}
.mt-head .c{background:var(--red);color:#fff;font-family:Anton;font-size:22px;padding:6px 12px;border-radius:10px}
.pcard{padding:20px;display:flex;flex-direction:column;gap:6px;transition:transform .2s var(--ease),border-color .2s}
.pcard:hover{transform:translateY(-2px);border-color:var(--muted)}
.pcard h3{font-family:Anton;font-weight:400;font-size:22px;letter-spacing:.03em;text-transform:uppercase}
.pcard p{color:var(--muted);font-size:14px;flex:1}
.pcard .meta{font-weight:700;font-size:14px;margin-top:8px}
.pcard.dim .meta{color:var(--muted)}
.mstats+.pcard,.mstats+div{margin-top:0}

/* answer feedback in blocks */
.verdict{display:flex;align-items:center;gap:10px;margin-top:18px;font-weight:800;font-size:15px;letter-spacing:.04em;text-transform:uppercase}
.verdict svg{width:26px;height:26px;padding:4px;border-radius:50%;color:#fff}
.verdict.ok{color:var(--ok)}.verdict.ok svg{background:var(--ok)}
.verdict.bad{color:var(--red)}.verdict.bad svg{background:var(--red)}
.whys{display:grid;gap:10px;margin-top:12px;animation:rise .35s var(--ease)}
.wb{display:grid;grid-template-columns:34px 1fr;gap:12px;padding:14px 16px;border-radius:14px;background:var(--tint)}
.wb .wi{width:34px;height:34px;border-radius:10px;display:grid;place-items:center}
.wb .wi svg{width:19px;height:19px}
.wb b{display:block;font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;margin-bottom:3px}
.wb p{font-size:15px;line-height:1.55}
.w-ok .wi{background:var(--ok-tint);color:var(--ok)}.w-ok b{color:var(--ok)}
.w-no .wi{background:var(--bad-tint);color:var(--red)}.w-no b{color:var(--red)}
.w-tip{background:color-mix(in srgb,#E9A13B 12%,var(--card));border:1px dashed color-mix(in srgb,#E9A13B 55%,transparent)}
.w-tip .wi{background:#E9A13B;color:#fff}.w-tip b{color:#B87414}
.w-tip p{font-family:Noteworthy,Caveat,cursive;font-size:19px;line-height:1.35}
.eq{display:inline-block;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em;font-weight:600;background:var(--card);border:1px solid var(--line);border-radius:7px;padding:1px 7px;margin:2px 0}

/* score screen breathing room */
.result .score{margin-top:8px}
.result .pass{margin-top:22px}

/* confirm dialog */
.modal{position:fixed;inset:0;z-index:90;background:rgba(0,0,0,.55);display:grid;place-items:center;padding:20px;animation:fade .2s}
.modal-in{background:var(--card);border-radius:18px;padding:24px;max-width:420px;width:100%;box-shadow:0 30px 80px rgba(0,0,0,.4)}
.modal-in h3{font-family:Anton;font-weight:400;font-size:24px;letter-spacing:.02em}
.modal-in p{color:var(--muted);margin-top:6px}
@media (max-width:560px){.g4.keep2{gap:10px}.g4.keep2 .mod .ph{height:84px}.g4.keep2 .mod .nm{font-size:15px}.g4.keep2 .mod .bd{padding:10px 11px 12px;gap:6px}.g4.keep2 .mod .meta{font-size:11.5px}.g4.keep2 .mod .code{font-size:13px;left:8px;top:8px}.g4.keep2 .mod .lock{font-size:10.5px;right:8px;top:8px}}

/* ---------- v4: full width + soft blurred backdrop (Vectored / Pilote Autrement feel) */
body::before{content:"";position:fixed;inset:-20vmax;z-index:-1;pointer-events:none;
  background:radial-gradient(40vmax 34vmax at 12% 8%,color-mix(in srgb,var(--red) 16%,transparent),transparent 70%),
             radial-gradient(46vmax 40vmax at 92% 18%,color-mix(in srgb,#E9A13B 10%,transparent),transparent 70%),
             radial-gradient(50vmax 40vmax at 60% 100%,color-mix(in srgb,var(--text) 6%,transparent),transparent 70%);
  filter:blur(40px)}
body{background:var(--bg)}
.box,.mstats>div{background:color-mix(in srgb,var(--card) 82%,transparent);backdrop-filter:blur(14px) saturate(1.4);-webkit-backdrop-filter:blur(14px) saturate(1.4)}
.wrap{max-width:none}
.main{padding:28px clamp(16px,3.2vw,56px) 80px!important}
.tb-in{max-width:none;padding:0 clamp(16px,3.2vw,56px)}
.grid.g4{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
.grid.g3{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
@media (min-width:861px){.hero{grid-template-columns:minmax(0,1.4fr) minmax(320px,1fr)}}
.qwrap{max-width:820px}
@media (min-width:1700px){.grid.g4{grid-template-columns:repeat(auto-fill,minmax(270px,1fr))}.mod .ph{height:150px}}
@media (max-width:560px){.grid.g4.keep2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.g3{grid-template-columns:1fr}}

/* ---------- reader */
#lecteur{position:fixed;inset:0;z-index:50;display:flex;flex-direction:column;background:var(--bg);--lz:1;-webkit-user-select:none;user-select:none}
.r-top{flex:none;height:60px;display:flex;align-items:center;gap:6px;padding:0 max(10px,env(safe-area-inset-left));border-bottom:1px solid var(--line);
  background:color-mix(in srgb,var(--bg) 78%,transparent);backdrop-filter:saturate(1.8) blur(20px);-webkit-backdrop-filter:saturate(1.8) blur(20px);position:relative;z-index:3}
.r-top .langs{margin:0 10px 0 6px}
.ico{flex:none;display:inline-flex;align-items:center;justify-content:center;gap:6px;height:38px;min-width:38px;padding:0 10px;border-radius:11px;color:var(--text);font-weight:600;font-size:14px;cursor:pointer}
.ico:hover{background:color-mix(in srgb,var(--text) 7%,transparent)}
.ico svg{width:20px;height:20px}
.r-titre{flex:1;min-width:0;text-align:center;line-height:1.2}
.r-titre b{display:block;font-family:Anton;font-weight:400;font-size:17px;letter-spacing:.03em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.r-titre small{display:block;font-size:12px;color:var(--muted);font-weight:600}
.r-zoom{display:flex;align-items:center;border:1px solid var(--line);border-radius:11px;height:36px;padding:0 2px}
.r-zoom .ico{height:32px;min-width:32px;padding:0 6px}.r-zoom .ico svg{width:17px;height:17px}
.r-zoom output{min-width:48px;text-align:center;font-weight:700;font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;cursor:pointer}
.r-corps{flex:1;min-height:0;display:flex}
.r-menu{flex:none;width:300px;display:none;flex-direction:column;border-right:1px solid var(--line);background:color-mix(in srgb,var(--card) 60%,var(--bg))}
#lecteur.menu-on .r-menu{display:flex}
.r-ch{padding:12px}
.r-ch input{width:100%;height:40px;border-radius:11px;border:1px solid var(--line);background:var(--card);padding:0 12px;font-size:14.5px;outline:none}
.r-liste{flex:1;overflow:auto;padding:0 8px 16px;overscroll-behavior:contain}
.r-liste h3{margin:14px 8px 4px;font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--red)}
.r-liste a{display:flex;gap:10px;padding:8px;border-radius:10px;font-size:14px;line-height:1.3;color:var(--muted);cursor:pointer}
.r-liste a i{flex:none;width:24px;font-style:normal;font-size:12px;font-variant-numeric:tabular-nums;padding-top:1px}
.r-liste a.lu i{color:var(--ok);font-weight:800}
.r-liste a:hover{background:var(--card);color:var(--text)}
.r-liste a.on{background:var(--card);color:var(--text);font-weight:700;box-shadow:0 0 0 1px var(--line)}
.r-pied{flex:none;display:grid;grid-template-columns:1fr auto;margin:0 10px calc(10px + env(safe-area-inset-bottom));padding:12px 14px;border-radius:12px;background:var(--red);color:#fff}
.r-pied small{grid-column:1;opacity:.85;font-size:12.5px}.r-pied span{grid-row:1/3;grid-column:2;align-self:center;font-size:22px}
#defile{flex:1;min-width:0;overflow:auto;overscroll-behavior:contain;outline:none}
.r-pages{width:calc(var(--lz) * min(100% - 24px, 1500px));margin:0 auto;padding:14px 0 calc(120px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:14px}
.r-page{position:relative;width:100%;aspect-ratio:297/210;background:#fff;border-radius:6px;overflow:hidden;flex:none;container-type:inline-size;box-shadow:0 1px 2px rgba(0,0,0,.08),0 14px 40px -18px rgba(0,0,0,.35)}
.r-page::before{content:attr(data-n);position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font:700 5cqw Inter,sans-serif;color:#E3E5E8}
.r-page img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;pointer-events:none;z-index:1}
.r-fili{position:absolute;inset:0;z-index:2;pointer-events:none;opacity:.035;background:repeating-linear-gradient(-30deg,transparent 0 9cqw,#16181B 9cqw 9.1cqw)}
.r-wm{position:absolute;z-index:3;right:.6cqw;top:50%;transform:translateY(-50%) rotate(180deg);writing-mode:vertical-rl;font-size:max(8px,.85cqw);font-weight:700;letter-spacing:.06em;color:rgba(22,24,27,.32);pointer-events:none}
.r-fin{display:flex;flex-direction:column;align-items:center;gap:10px;margin:20px auto 0;padding:26px;border-radius:18px;background:var(--card);border:1px solid var(--line);width:min(100%,520px);text-align:center}
.r-fin b{font-family:Anton;font-weight:400;font-size:22px;letter-spacing:.02em}.r-fin span{color:var(--red);font-weight:800}
#lecteur.zoome #defile{overflow-x:auto}
#lecteur.zoome .r-pages{max-width:none}
.r-plein{display:none;position:fixed;left:50%;bottom:calc(16px + env(safe-area-inset-bottom));transform:translateX(-50%);z-index:6;align-items:center;gap:10px;padding:6px 6px 6px 16px;border-radius:14px;
  background:rgba(22,24,27,.82);color:#fff;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);font-weight:700;font-size:14px}
.r-plein .ico{color:#fff}
#lecteur.plein .r-top,#lecteur.plein .r-menu{display:none}
#lecteur.plein .r-plein{display:flex}
#lecteur.plein{background:#0b0c0d}
#lecteur.plein .r-pages{width:min(100vw,calc(100dvh * 297 / 210));padding:0 0 90px;gap:8px}
#lecteur.plein .r-page{border-radius:0}
@media (max-width:1099px){.r-menu{position:absolute;top:60px;bottom:0;left:0;z-index:4;width:min(320px,86vw);box-shadow:20px 0 60px rgba(0,0,0,.25)}}
@media (max-width:700px){.r-zoom,#r-full,.r-top .langs{display:none}.r-pages{width:calc(var(--lz) * (100% - 12px));gap:10px}}

/* ---------- annotations (same tools as Pilote Autrement) */
.r-can{position:absolute;inset:0;width:100%;height:100%;z-index:4;pointer-events:none}
#lecteur.annote .r-can{pointer-events:auto;touch-action:none;cursor:crosshair}
#r-ann.on{background:var(--text);color:var(--bg)}
.r-pal{display:none;position:fixed;left:50%;bottom:calc(18px + env(safe-area-inset-bottom));transform:translateX(-50%);z-index:7;align-items:center;gap:4px;padding:6px;border-radius:18px;
  background:color-mix(in srgb,var(--card) 92%,transparent);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:0 18px 50px -12px rgba(0,0,0,.35);border:1px solid var(--line);max-width:calc(100vw - 20px);overflow-x:auto}
#lecteur.annote .r-pal{display:flex}
.r-pal .outil{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;color:var(--text);flex:none}
.r-pal .outil svg{width:20px;height:20px}
.r-pal .outil.on{background:var(--text);color:var(--bg)}
.r-pal .sep{width:1px;height:24px;background:var(--line);margin:0 4px;flex:none}
.r-pal .cols,.r-pal .sizes{display:flex;gap:4px;align-items:center}
.r-pal .dot{width:24px;height:24px;border-radius:50%;flex:none;box-shadow:inset 0 0 0 2px rgba(255,255,255,.6)}
.r-pal .dot.on{box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--text)}
.r-pal .sz{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;flex:none}
.r-pal .sz i{display:block;border-radius:50%;background:var(--text)}
.r-pal .sz.on{background:color-mix(in srgb,var(--text) 10%,transparent)}
.r-pal .fini{height:40px;padding:0 16px;border-radius:12px;background:var(--red);color:#fff;font-weight:700;margin-left:4px;flex:none}
@media (max-width:700px){.hide-s{display:none}.r-pal .sizes,.r-pal .sep:nth-of-type(2){display:none}}

/* contents: one quiet colour scheme (no red / green / white mix) */
.r-liste h3{color:var(--muted)}
.r-liste a.lu i{color:var(--muted);font-weight:700}
.r-liste a.lu i::after{content:" ✓";font-size:10px}
.r-liste a.on{background:var(--card);color:var(--text);box-shadow:inset 3px 0 0 var(--text)}
.r-liste a.note span::after{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:#ffd60a;margin-left:6px;vertical-align:middle}
.r-flt{display:flex;gap:6px;padding:0 12px 8px}
.r-flt button{padding:5px 11px;border-radius:999px;border:1px solid var(--line);font-size:12.5px;font-weight:600;color:var(--muted)}
.r-flt button.on{background:var(--text);border-color:var(--text);color:var(--bg)}
.r-pied{background:var(--text);color:var(--bg)}

/* confirm dialog centred */
.modal-in{text-align:center}
.modal-in .row{justify-content:center}