/* MEGURU, charte graphique v1.0 : noir encre, crème papier, vermillon (un seul point d'accent par écran), sable, pierre. Jost pour les titres, Inter pour les textes. */
:root{
  --bg:#F4EFE6; --surface:#F4EFE6; --surface2:#E3DBCB; --ink:#111111; --muted:#5E584F; --line:#D5CCB9;
  --accent:#E8431F; --accent-hover:#E8431F; --accent-ink:#111111; --link:#111111; --star:#E8431F;
  --hero:#111111; --hero-ink:#F4EFE6; --hero-muted:#CFC8BA;
  --ok:#1C7A3C; --okbg:#E1EBDD; --ko:#B42318; --kobg:#F6DDD5; --info:#1D5FA0; --infobg:#E7EFF8;
  --font:"Inter",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --display:"Jost","Futura","Century Gothic",system-ui,sans-serif;
  --mono:ui-monospace,"Cascadia Mono",Menlo,Consolas,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#111111; --surface:#111111; --surface2:#2A2824; --ink:#F4EFE6; --muted:#B5AE9F; --line:#3A3730;
  --accent:#E8431F; --accent-hover:#FF5A36; --accent-ink:#111111; --link:#F4EFE6; --star:#FF5A36;
  --hero:#000000; --hero-ink:#F4EFE6; --hero-muted:#CFC8BA;
  --ok:#6FD08E; --okbg:#16301F; --ko:#FF8F84; --kobg:#3A1A17; --info:#8CB8F0; --infobg:#17273B; color-scheme:dark}}
html{font-size:19px}
html[data-size="2"]{font-size:21.5px}
html[data-size="3"]{font-size:24px}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.55;-webkit-text-size-adjust:100%}
img{max-width:100%}
[hidden]{display:none!important}
h1,h2,h3{font-family:var(--display);font-weight:500;line-height:1.15;text-wrap:balance;margin:0}
h1{font-size:2.3rem;letter-spacing:.01em}
h2{font-size:1.55rem}
h3{font-size:1.2rem}
p{margin:0}
a{color:var(--link);text-decoration-color:var(--accent);text-underline-offset:3px}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--star);outline-offset:3px}
.topbar{position:sticky;top:0;z-index:10;background:var(--surface);border-bottom:1px solid var(--line)}
.topbar-in{max-width:1180px;margin:0 auto;padding:10px 16px;display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--ink)}
.logo{display:block;height:34px;width:130px;background:var(--ink);-webkit-mask:url(/meguru/logo.svg) no-repeat left center/contain;mask:url(/meguru/logo.svg) no-repeat left center/contain}
.sym{display:block;width:56px;height:56px;background:var(--hero-ink);-webkit-mask:url(/meguru/symbol.svg) no-repeat center/contain;mask:url(/meguru/symbol.svg) no-repeat center/contain}
.tools{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.nav{display:flex;gap:6px;flex-wrap:wrap}
.nav a{padding:6px 14px;border-radius:32px;text-decoration:none;color:var(--ink);font-weight:600;font-size:.92rem}
.nav a:hover,.nav a[aria-current="page"]{background:var(--surface2);color:var(--ink)}
.sizer{display:flex;border:1.5px solid var(--ink);border-radius:32px;overflow:hidden}
.sizer button{background:var(--surface);border:0;padding:6px 12px;cursor:pointer;font-weight:700}
.sizer button+button{border-left:1px solid var(--line)}
.sizer button[aria-pressed="true"]{background:var(--ink);color:var(--bg)}
.sizer .s1{font-size:.85rem}.sizer .s2{font-size:1rem}.sizer .s3{font-size:1.18rem}
main{max-width:1180px;margin:0 auto;padding-inline:16px;padding-block:28px 64px;display:flex;flex-direction:column;gap:32px}
.eyebrow{font-family:var(--display);font-size:.82rem;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.lead{font-size:1.12rem;color:var(--muted);max-width:64ch}
.small{font-size:.9rem;color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--ink);color:var(--bg);border:0;border-radius:32px;padding:.7em 1.5em;font-weight:600;font-size:1rem;cursor:pointer;min-height:50px;text-align:center;text-decoration:none}
.btn:hover{background:var(--accent);color:var(--accent-ink)}
.btn.accent{background:var(--accent);color:var(--accent-ink)}
.btn.accent:hover{background:var(--hero-ink);color:var(--hero)}
.btn.secondary{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn.secondary:hover{background:var(--surface2);color:var(--ink);border-color:var(--ink)}
.btn:disabled{opacity:.5;cursor:default}
.btn.sm{min-height:40px;padding:.4em 1.1em;font-size:.92rem}
.crumbs{display:flex;gap:8px;flex-wrap:wrap;font-size:.92rem;color:var(--muted)}
.crumbs a{color:var(--link);font-weight:600;text-decoration:none}
.hero{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:28px;align-items:center;background:var(--hero);color:var(--hero-ink);border-radius:32px;padding:44px 40px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;right:-90px;bottom:-110px;width:520px;height:520px;background:#1C1B19;-webkit-mask:url(/meguru/symbol.svg) no-repeat center/contain;mask:url(/meguru/symbol.svg) no-repeat center/contain;pointer-events:none}
.hero>*{position:relative}
.hero .eyebrow{color:var(--hero-muted)}
.hero .lead{color:var(--hero-muted)}
.hero h1 .dot{color:var(--accent)}
.hero-text{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.promise{background:var(--bg);color:var(--ink);border-radius:18px;padding:20px;display:flex;flex-direction:column;gap:14px}
.promise div{display:grid;grid-template-columns:36px 1fr;gap:12px;align-items:start}
.promise .pi{width:36px;height:36px;border-radius:50%;background:var(--surface2);color:var(--ink);font-family:var(--display);display:grid;place-items:center;font-weight:700}
.promise b{display:block}
.promise span{color:var(--muted)}
.statline{display:flex;gap:10px;flex-wrap:wrap}
.chip{font-size:.8rem;font-weight:600;padding:3px 12px;border-radius:32px;background:var(--surface2);color:var(--ink)}
.hero .chip{background:#2A2926;color:var(--hero-ink)}
.hero .btn{background:var(--accent);color:var(--accent-ink)}
.hero .btn:hover{background:var(--hero-ink);color:#111}
.resume{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;background:var(--surface2);border:1.5px solid var(--ink);border-radius:18px;padding:16px 20px}
.resume b{display:block;font-size:1.1rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:16px}
.card{background:var(--surface);border:1.5px solid var(--line);border-radius:18px;padding:20px;display:flex;flex-direction:column;gap:12px;text-align:left;cursor:pointer;text-decoration:none;color:inherit;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--ink);transform:translateY(-2px)}
.card p{color:var(--muted)}
.card-top{display:flex;gap:14px;align-items:center}
.ico{width:52px;height:52px;flex:none;border-radius:50%;display:grid;place-items:center;background:var(--surface2);color:var(--ink)}
.ico svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.meter{height:10px;background:var(--surface2);border-radius:99px;overflow:hidden}
.meter i{display:block;height:100%;background:var(--ink);border-radius:99px}
.card-foot{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-top:auto;flex-wrap:wrap}
.how{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.how div{border:1.5px solid var(--line);border-radius:18px;padding:16px;display:flex;flex-direction:column;gap:6px}
.how b{font-size:1.05rem}
.how span{color:var(--muted)}
.foot{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;color:var(--muted);font-size:.9rem;border-top:1px solid var(--line);padding-top:20px}
.foot-brand{display:flex;gap:14px;align-items:center}
.foot-brand .logo{height:28px;width:108px}
.foot b{color:var(--ink)}
.course-head{display:flex;gap:18px;align-items:flex-start}
.course-head .ico{width:68px;height:68px}
.course-head .ico svg{width:34px;height:34px}
.course-head>div{display:flex;flex-direction:column;gap:10px;min-width:0}
.mod{background:var(--surface);border:1.5px solid var(--line);border-radius:18px;padding:20px;display:flex;flex-direction:column;gap:14px}
.mod-top{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;flex-wrap:wrap}
.mod-top>div{display:flex;flex-direction:column;gap:4px}
.lessons{display:flex;flex-direction:column;gap:8px}
.lrow{display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:14px;align-items:center;border:1.5px solid var(--line);border-radius:18px;padding:12px 16px;text-decoration:none;color:inherit;background:var(--surface)}
.lrow:hover{border-color:var(--ink)}
.lnum{width:44px;height:44px;border-radius:50%;background:var(--surface2);display:grid;place-items:center;font-weight:700}
.lrow.done .lnum{background:var(--okbg);color:var(--ok)}
.lrow.doing .lnum{background:var(--accent);color:var(--accent-ink)}
.lrow b{display:block}
.lrow span.small{display:block}
.state{font-size:.8rem;font-weight:600;padding:3px 12px;border-radius:32px;background:var(--surface2);white-space:nowrap}
.lrow.done .state{background:var(--okbg);color:var(--ok)}
.lrow.doing .state{background:var(--ink);color:var(--bg)}
/* Leçon */
.lesson{display:grid;grid-template-columns:290px minmax(0,1fr);gap:22px;align-items:start}
.steps{position:sticky;top:84px;background:var(--surface);border:1.5px solid var(--line);border-radius:18px;padding:16px;display:flex;flex-direction:column;gap:6px}
.steps h3{font-size:1rem;margin-bottom:4px}
.step{display:grid;grid-template-columns:30px minmax(0,1fr) auto;gap:10px;align-items:center;text-align:left;border:0;background:none;border-radius:12px;padding:8px 8px;cursor:pointer}
.step:hover{background:var(--surface2)}
.step.cur{background:var(--surface2);outline:2px solid var(--ink)}
.step i{width:30px;height:30px;border-radius:50%;border:2px solid var(--line);display:grid;place-items:center;font-style:normal;font-weight:700;font-size:.85rem}
.step.done i{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.step span{font-size:.93rem;line-height:1.25}
.step small{color:var(--muted);white-space:nowrap}
.stage{display:flex;flex-direction:column;gap:18px;min-width:0}
.panel{background:var(--surface);border:1.5px solid var(--line);border-radius:18px;padding:22px;display:flex;flex-direction:column;gap:16px}
.seg-head{display:flex;flex-direction:column;gap:6px}
.video{position:relative;width:100%;aspect-ratio:16/9;background:#121211;border-radius:14px;overflow:hidden}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.vph{position:absolute;inset:0;font-family:var(--display);display:flex;flex-direction:column;gap:10px;align-items:center;justify-content:center;text-align:center;color:#F7F5EF;padding:20px}
.vph .sym{width:64px;height:64px;opacity:.9}
.vph b{font-size:1.2rem}
.vph span{color:#CFCBC1;max-width:44ch}
.keys{display:flex;flex-direction:column;gap:10px;margin:0;padding:0;list-style:none}
.keys li{display:grid;grid-template-columns:14px 1fr;gap:14px}
.keys li::before{content:"";width:12px;height:12px;margin:.5em 1px 0;border-radius:50%;background:var(--ink)}
.steplist{margin:0;padding-left:1.4em;display:flex;flex-direction:column;gap:8px}
.callout{background:var(--surface2);border-radius:14px;padding:14px 18px;display:flex;flex-direction:column;gap:4px}
.callout b{font-family:var(--display);font-size:.8rem;font-weight:500;letter-spacing:.18em;text-transform:uppercase}
.checks{display:flex;flex-direction:column;gap:10px}
.check{display:flex;gap:12px;align-items:flex-start;cursor:pointer;border:1.5px solid var(--line);border-radius:18px;padding:12px 14px}
.check input{width:24px;height:24px;flex:none;margin-top:2px;accent-color:#111111}
.check:has(input:checked){border-color:var(--ok);background:var(--okbg)}
.nav-seg{display:flex;gap:10px;flex-wrap:wrap;justify-content:space-between;align-items:center}
.notes textarea{width:100%;min-height:90px;font:inherit;padding:12px;border:2px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink);resize:vertical}
.opts{display:flex;flex-direction:column;gap:10px}
.opt{display:flex;gap:14px;align-items:center;width:100%;text-align:left;padding:.8em 1.1em;border:1.5px solid var(--line);border-radius:18px;background:var(--surface);color:var(--ink);cursor:pointer;font-size:1.02rem;min-height:56px}
.opt:hover:not(:disabled){border-color:var(--ink)}
.opt:disabled{cursor:default}
.optk{width:32px;height:32px;flex:none;border-radius:50%;background:var(--surface2);display:grid;place-items:center;font-weight:700}
.opt.right{border-color:var(--ok);background:var(--okbg)}
.opt.wrong{border-color:var(--ko);background:var(--kobg)}
.fb{border-radius:14px;padding:14px 18px;display:flex;flex-direction:column;gap:10px;border:2px solid}
.fb.ok{background:var(--okbg);border-color:var(--ok)}
.fb.ko{background:var(--kobg);border-color:var(--ko)}
.fb b{font-size:1.05rem}
.fb.ok b{color:var(--ok)}.fb.ko b{color:var(--ko)}
.fb .btn{align-self:flex-start}
.pbar{height:8px;background:var(--surface2);border-radius:99px;overflow:hidden}
.pbar i{display:block;height:100%;background:var(--ink);border-radius:99px}
.result{align-items:center;text-align:center}
.result .big{font-size:3rem;color:var(--star)}
.rep-err{border-left:4px solid var(--ink);background:var(--surface2);border-radius:0 12px 12px 0;padding:12px 16px;display:flex;flex-direction:column;gap:6px}
.rep-q{font-weight:700}
.rep-lbl{font-weight:700;margin-right:6px}
.rep-lbl.ko{color:var(--ko)}.rep-lbl.ok{color:var(--ok)}
.rep-ok{color:var(--ok);font-weight:700}
.actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.tourn{border:1.5px dashed var(--ink);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:10px;background:var(--surface2)}
.tourn pre{white-space:pre-wrap;font:inherit;margin:0}
.tourn input[type=text]{font:inherit;padding:.5em .8em;border:2px solid var(--line);border-radius:10px;width:100%;background:var(--surface);color:var(--ink)}
.tourn code{font-family:var(--mono);font-size:.85rem;word-break:break-all}
.tbl{width:100%;border-collapse:collapse;font-size:.92rem}
.tbl th,.tbl td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl-wrap{overflow-x:auto}
.mini{display:inline-block;width:12px;height:12px;border-radius:50%;background:var(--line);margin-right:6px}
.mini.on{background:var(--ok)}
textarea.export{width:100%;min-height:260px;font-family:var(--mono);font-size:.85rem;padding:12px;border:2px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink)}
@media (max-width:900px){
  .hero{grid-template-columns:1fr;padding:26px 18px}
  .lesson{grid-template-columns:1fr}
  .steps{position:static}
  .lrow{grid-template-columns:40px minmax(0,1fr)}
  .lrow .state{grid-column:2;justify-self:start}
}
@media (max-width:640px){h1{font-size:1.75rem}.hero::before{width:360px;height:360px;right:-100px;bottom:-90px}.panel{padding:16px}.how{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}