@font-face{font-family:Manrope;font-weight:400 800;font-display:swap;src:url(fonts/manrope.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-weight:500;font-display:swap;src:url(fonts/plexmono-500.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-weight:600;font-display:swap;src:url(fonts/plexmono-600.woff2) format("woff2")}

:root{
  --bg:#0D1117;--bg-2:#111722;--line:#1E2532;--muted:#4A5568;
  --text:#FFFFFF;--text-2:#C8DFFA;--text-3:#8898AA;
  --blue:#3085E8;--blue-light:#5AABF5;--blue-dark:#1A5CB8;
  --green:#3FB950;--red:#F85149;--orange:#F0883E;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Manrope,system-ui,sans-serif;font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-light)}
a:hover{color:var(--text-2)}
:focus-visible{outline:2px solid var(--blue-light);outline-offset:3px}

.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-alt{background:var(--bg-2);border-top:2px solid var(--line);border-bottom:2px solid var(--line)}
.blueprint{background-color:var(--bg);background-image:linear-gradient(rgba(90,171,245,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(90,171,245,.06) 1px,transparent 1px);background-size:40px 40px}

h1,h2,h3{margin:0;line-height:1.1;letter-spacing:-.02em}
h1{font-size:clamp(38px,6vw,60px);font-weight:800;letter-spacing:-.03em}
h2{font-size:clamp(30px,4.4vw,42px);font-weight:800}
h3{font-size:20px;font-weight:700;letter-spacing:-.01em}
p{margin:0}
.eyebrow{font-family:var(--mono);font-size:13px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--blue-light);margin:0}
.lead{font-size:19px;color:var(--text-2);max-width:580px}
.muted{color:var(--text-2)}
.small{font-size:14px;color:var(--text-3)}
.mono{font-family:var(--mono)}
.stack{display:flex;flex-direction:column;gap:24px}
.stack-sm{display:flex;flex-direction:column;gap:12px}
.section-head{display:flex;flex-direction:column;gap:12px;max-width:760px;margin-bottom:40px}
.row-between{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;margin-bottom:36px}

/* En-tête */
.site-header{border-bottom:2px solid var(--line)}
.site-header .wrap{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;padding-top:16px;padding-bottom:16px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);text-decoration:none;font-weight:800;font-size:19px}
.brand img{width:40px;height:auto}
.brand span{font-weight:500;color:var(--text-2)}
.nav{display:flex;flex-wrap:wrap;gap:8px 24px;align-items:center;font-size:15px;font-weight:500}
.nav a{color:var(--text-2);text-decoration:none}
.nav a:hover,.nav a[aria-current=page]{color:var(--text)}
.nav .btn{padding:10px 18px;font-size:15px}

/* Boutons */
.btn{display:inline-block;text-decoration:none;font-weight:700;font-size:16px;padding:14px 26px;border:2px solid var(--text-2);color:var(--text);transition:transform .12s,box-shadow .12s}
.btn:hover{color:var(--text);transform:translate(-2px,-2px)}
.btn-primary,.nav .btn-primary{background:var(--blue-light);border-color:var(--blue-light);color:var(--bg);box-shadow:5px 5px 0 var(--blue-dark)}
.btn-primary:hover,.nav .btn-primary:hover{color:var(--bg);box-shadow:7px 7px 0 var(--blue-dark)}
.btns{display:flex;flex-wrap:wrap;gap:16px}

/* Encadrés */
.card{border:2px solid var(--text-2);box-shadow:6px 6px 0 var(--blue-dark);background:var(--bg);padding:26px;display:flex;flex-direction:column;gap:14px}
.card-accent{border-color:var(--blue-light);box-shadow:8px 8px 0 var(--blue-dark)}
.card-flat{border:2px solid var(--muted);box-shadow:none}
a.card{text-decoration:none;color:var(--text);transition:transform .12s,box-shadow .12s}
a.card:hover{color:var(--text);transform:translate(-2px,-2px);box-shadow:8px 8px 0 var(--blue-dark)}
.cards{display:flex;flex-wrap:wrap;gap:24px}
.cards>*{flex:1 1 300px}
.cards-4>*{flex:1 1 230px}
.card-top{display:flex;justify-content:space-between;font-family:var(--mono);font-size:13px}
.card-top b{color:var(--blue-light);font-weight:600}
.card-top span{color:var(--text-3)}
.big-num{font-family:var(--mono);font-weight:600;font-size:26px;color:var(--blue-light)}

/* Jauges : 1 case = 1 point */
.gauge{display:flex;gap:4px}
.gauge i{flex:1 1 0;height:20px;background:var(--line)}
.gauge i.b{background:var(--muted)}
.gauge i.g{background:var(--blue)}
.gauge i.v{background:var(--green)}
.gauge i.r{background:var(--red)}
.win{color:var(--green)!important}
.fail{color:var(--red)!important}
.gauge-sm{gap:3px}.gauge-sm i{height:12px}
.gauge-xs i{height:10px}
.gauge-label{display:flex;justify-content:space-between;font-family:var(--mono);font-size:14px;margin-bottom:10px}
.gauge-label span:first-child{color:var(--text-2)}

/* Grille de données : 1 case = 1 sujet */
.data{display:flex;flex-direction:column;gap:22px}
.data-row{display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center}
.data-row p{flex:1 1 240px;font-size:16px;font-weight:600}
.data-row .gauge{flex:999 1 420px;min-width:0;gap:3px}
.data-row .gauge i{height:16px}
.data-row strong{flex:0 0 64px;text-align:right;font-family:var(--mono);font-size:20px;font-weight:600;color:var(--blue-light)}

/* Accueil */
.hero{padding:72px 0 88px}
.hero .wrap{display:flex;flex-wrap:wrap;gap:48px;align-items:center}
.hero-text{flex:1 1 520px;display:flex;flex-direction:column;gap:26px}
.hero-visual{flex:0 1 320px;position:relative;margin:0 auto}
.steps{display:flex;align-items:stretch;gap:12px}
.steps>.card{flex:1 1 0;min-width:0}
.step-r{--step:var(--red)}.step-o{--step:var(--orange)}.step-v{--step:var(--green)}
.steps .card{border-color:var(--step)}
.steps .card-top b{color:var(--step)}
.steps .gauge i.g{background:var(--step)}
.step-arrow{flex:0 0 auto;display:flex;align-items:center;justify-content:center;color:var(--blue-light)}
.hero-photo{width:100%;-webkit-mask-image:radial-gradient(ellipse closest-side at 50% 50%,#000 62%,transparent 100%);mask-image:radial-gradient(ellipse closest-side at 50% 50%,#000 62%,transparent 100%)}
.band b.plain{color:var(--text)}
.band{border-top:2px solid var(--line);border-bottom:2px solid var(--line)}
.band .wrap{display:flex;flex-wrap:wrap;gap:32px;padding-top:44px;padding-bottom:44px}
.band .wrap>div{flex:1 1 200px}
.band b{display:block;font-family:var(--mono);font-weight:600;font-size:38px;line-height:1.2;color:var(--blue-light)}
.band span{font-size:15px;color:var(--text-2)}
.split{display:flex;flex-wrap:wrap;gap:56px;align-items:center}
.split>*{flex:1 1 420px}
.portrait{border:2px solid var(--text-2);box-shadow:8px 8px 0 var(--blue-dark);background:#000;max-width:440px}
.cta-final{text-align:center;align-items:center}
.cta-final h2{max-width:760px}
.faq details{border:2px solid var(--muted);padding:20px 24px}
.faq details[open]{border-color:var(--text-2)}
.faq summary{cursor:pointer;font-weight:700;font-size:18px}
.faq details p{margin-top:12px;color:var(--text-2)}
.faq{display:flex;flex-direction:column;gap:16px;max-width:820px}

/* Moments vidéo (rubrique Réviser) */
.moments{display:flex;flex-direction:column;gap:12px;margin:24px 0}
.moment{display:flex;align-items:center;gap:16px;border:2px solid var(--muted);padding:10px;text-decoration:none;color:var(--text);transition:border-color .12s,transform .12s}
.moment:hover{border-color:var(--blue-light);color:var(--text);transform:translate(-2px,-2px)}
.moment img{width:128px;flex:0 0 128px;aspect-ratio:16/9;object-fit:cover}
.moment>span:nth-child(2){flex:1;display:flex;flex-direction:column;gap:2px;min-width:0}
.moment-time{font-family:var(--mono);font-weight:600;color:var(--blue-light);white-space:nowrap}
.chapters{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.chapters a{border:2px solid var(--muted);padding:18px 20px;text-decoration:none;color:var(--text);display:flex;flex-direction:column;gap:6px;transition:border-color .12s,transform .12s}
.chapters a:hover{border-color:var(--blue-light);color:var(--text);transform:translate(-2px,-2px)}
.chapters b{font-size:18px}
.level-title{margin:56px 0 20px}
.level-title:first-child{margin-top:0}
@media (max-width:560px){.moment img{display:none}}

/* Convictions */
.convictions{list-style:none;counter-reset:c;margin:0;padding:0;max-width:820px}
.convictions li{counter-increment:c;display:grid;grid-template-columns:36px 1fr;column-gap:16px;row-gap:6px;align-items:baseline;padding:20px 0;border-bottom:2px solid var(--line);font-size:17px;color:var(--text-2)}
.convictions li::before{content:counter(c,decimal-leading-zero);font-family:var(--mono);font-weight:600;color:var(--blue-light);grid-row:1}
.convictions li>*{grid-column:2}
.convictions b{color:var(--text);font-size:20px}
.convictions li.win b,.convictions li.win::before{color:var(--green)}

/* Avis ponctuels entre les sections */
.proof{padding:8px 0;position:relative;z-index:1;margin:-40px 0}
.proof .wrap{display:flex}
.proof figure{margin:0;max-width:520px;width:100%}
.proof-right .wrap{justify-content:flex-end}
.proof-left figure{transform:rotate(-1deg)}
.proof-right figure{transform:rotate(1deg)}
.proof-result{font-weight:800;font-size:22px;letter-spacing:-.01em}
.proof blockquote{margin:0;color:var(--text-2);font-size:16px}
.testimonials{columns:2 340px;column-gap:24px}
.testimonials figure{break-inside:avoid;margin:0 0 24px}

/* Articles */
.prose{max-width:740px}
.prose h2{font-size:clamp(26px,3.6vw,32px);margin:48px 0 16px}
.prose h3{margin:32px 0 12px}
.prose p,.prose ul,.prose ol{margin:0 0 18px;color:var(--text-2)}
.prose li{margin-bottom:8px}
.prose strong{color:var(--text)}
.prose .card,.prose .data{margin:32px 0}
.prose .steps .card{margin:0;padding:18px}
.prose .steps .muted{font-size:15px;margin:0}
.formula{font-family:var(--mono);font-size:16px;color:var(--text);background:var(--bg-2);border-left:0;padding:14px 18px;margin:0 0 18px;overflow-x:auto;white-space:nowrap}
.prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.prose th,.prose td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
.prose th{font-family:var(--mono);font-weight:500;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--blue-light)}
.table-scroll{overflow-x:auto}
.video img{width:100%;aspect-ratio:16/9;object-fit:cover;border:2px solid var(--line)}
.social{display:flex;flex-wrap:wrap;gap:16px}
.article-meta{font-family:var(--mono);font-size:13px;color:var(--text-3)}
.sources{font-size:14px;color:var(--text-3);border-top:2px solid var(--line);padding-top:24px;margin-top:48px}
.sources a{word-break:break-all}
.breadcrumb{font-size:14px;color:var(--text-3);margin-bottom:24px}
.breadcrumb a{color:var(--text-3)}

/* Pied de page */
.site-footer{border-top:2px solid var(--line);padding:40px 0;font-size:14px;color:var(--text-3)}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:center}
.site-footer nav{display:flex;flex-wrap:wrap;gap:20px}
.site-footer a{color:var(--text-3)}

@media (max-width:860px){
  .steps{flex-direction:column}
  .step-arrow svg{transform:rotate(90deg)}
}
@media (max-width:720px){
  body{font-size:16px}
  .section{padding:64px 0}
  .hero{padding:40px 0 56px}
  .hero-visual{max-width:260px}
  .data-row p{flex-basis:100%}
  .data-row .gauge{flex:1 1 0}
  .data-row strong{flex-basis:52px;font-size:17px}
  .nav{gap:6px 16px;font-size:14px}
}