:root{
    color-scheme: light;
    --bg:#F6F4F0; --surface:#FFFFFF; --ink:#2B1A10; --soft:#6d665b; --line:#e3ddd2;
    --accent:#8A5420; --accent-ink:#FFFFFF; --peach:#EFE1CC;
    --choco:#3D2216; --choco-2:#4B2A1C; --choco-ink:#F7EEE6; --choco-soft:#d4bca9; --choco-line:#5e3a29;
    --disp:"Inter Tight","Helvetica Neue",Arial,sans-serif;
    --body:"Inter",-apple-system,"Segoe UI",Arial,sans-serif;
  }
  *{box-sizing:border-box}
  [hidden]{display:none!important}
  html{scroll-behavior:smooth}
  body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
  h1,h2,h3{font-family:var(--disp);margin:0;letter-spacing:-0.035em;line-height:1;text-wrap:balance}
  p{margin:0}
  a{color:inherit}
  :focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
  .wrap{max-width:1180px;margin-inline:auto;padding-inline:20px}
  @media(min-width:720px){.wrap{padding-inline:40px}}

  /* nav */
  .nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
  .nav .wrap{display:flex;align-items:center;justify-content:space-between;height:56px;gap:12px}
  .brand{display:flex;align-items:center;gap:8px;font:800 1rem/1 var(--disp);letter-spacing:-0.02em;text-decoration:none}
  .brand i{width:20px;height:20px;border-radius:50%;background:var(--accent);display:grid;place-items:center}
  .brand i svg{width:12px;height:12px}
  .nav-links{display:flex;align-items:center;gap:22px;font-size:.84rem;font-weight:500}
  .nav-links a{text-decoration:none;color:var(--soft)}
  .nav-links a:hover{color:var(--ink)}
  .pill{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:var(--accent-ink)!important;text-decoration:none;font-weight:600;font-size:.84rem;padding:9px 18px;border-radius:999px;transition:transform .15s}
  .pill:hover{transform:translateY(-1px)}
  @media(max-width:640px){.nav-links a:not(.pill){display:none}}

  /* hero */
  .hero{position:relative;overflow:hidden;padding-block:56px 40px}
  .bgword{position:absolute;left:50%;bottom:-0.16em;transform:translateX(-50%);font:900 clamp(9rem,34vw,30rem)/.8 var(--disp);letter-spacing:-0.06em;color:var(--peach);white-space:nowrap;pointer-events:none;user-select:none;z-index:0}
  .hero .wrap{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:24px;min-height:min(78vh,720px)}
  @media(max-width:820px){.hero .wrap{grid-template-columns:1fr;min-height:0}}
  .kicker{font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:18px}
  .hero h1{font-size:clamp(3.2rem,8.5vw,6.6rem);font-weight:900}
  .hero h1 span{display:block}
  .hero h1 .o{color:var(--accent)}
  .hero .lead{margin-top:22px;font-size:clamp(1rem,1.6vw,1.15rem);color:var(--soft);max-width:470px}
  .meta{margin-top:18px;font-size:.8rem;color:var(--soft);display:flex;gap:14px;flex-wrap:wrap}
  .meta b{color:var(--ink);font-weight:600}
  .hero-img{position:relative;display:grid;place-items:center}
  .hero-img img{width:min(100%,520px);height:auto;filter:drop-shadow(0 30px 30px rgba(40,22,10,.28));animation:float 6s ease-in-out infinite}
  @keyframes float{0%,100%{transform:translateY(0) rotate(-3deg)}50%{transform:translateY(-12px) rotate(1deg)}}
  @media (prefers-reduced-motion:reduce){.hero-img img{animation:none}}

  section{position:relative}
  .sec{padding-block:clamp(64px,10vw,120px)}
  .sec-head{display:grid;grid-template-columns:1fr 1.2fr;gap:24px;align-items:end;margin-bottom:44px}
  @media(max-width:820px){.sec-head{grid-template-columns:1fr}}
  .sec-head h2{font-size:clamp(2.2rem,5.4vw,4rem);font-weight:900}
  .sec-head p{color:var(--soft);max-width:520px}

  /* taste test */
  .taste{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
  @media(max-width:820px){.taste{grid-template-columns:1fr}}
  .tcard{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;display:flex;flex-direction:column;gap:10px}
  .tcard .tag{align-self:flex-start;font-size:.72rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:4px 10px;border-radius:999px;background:var(--bg);color:var(--soft)}
  .tcard.main{border-color:var(--accent);box-shadow:0 18px 40px -24px rgba(180,69,28,.55)}
  .tcard.main .tag{background:var(--accent);color:var(--accent-ink)}
  .tcard h3{font-size:1.6rem;font-weight:800}
  .tcard p{color:var(--soft);font-size:.94rem}
  .tcard .fix{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:.9rem;color:var(--ink);font-weight:500}
  .tcard .fix::before{content:"→ ";color:var(--accent);font-weight:700}

  .scale{margin-top:36px;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px 24px}
  .scale-title{font-size:.8rem;font-weight:600;color:var(--soft);margin-bottom:26px}
  .bar{position:relative;height:12px;border-radius:999px;background:linear-gradient(90deg,#e6c46a 0%,#e6c46a 30%,#7fae7a 30%,#7fae7a 62%,var(--accent) 62%,var(--accent) 100%)}
  .bar .mk{position:absolute;top:-22px;transform:translateX(-50%);font:600 .74rem/1 var(--body);color:var(--ink)}
  .bar .mk::after{content:"";position:absolute;left:50%;top:18px;width:2px;height:20px;background:var(--ink);transform:translateX(-50%)}
  .scale-labels{display:grid;grid-template-columns:30fr 32fr 38fr;margin-top:12px;font-size:.84rem}
  .scale-labels span:nth-child(2){text-align:center}
  .scale-labels span:nth-child(3){text-align:right}
  .scale-labels b{display:block;font-family:var(--disp);font-size:1rem;letter-spacing:-0.02em}
  .scale-note{margin-top:14px;font-size:.8rem;color:var(--soft)}

  /* numbers */
  .nums{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));column-gap:28px;border-top:1px solid var(--line)}
  @media(max-width:820px){.nums{grid-template-columns:repeat(2,minmax(0,1fr))}}
  .num{padding:28px 0;border-bottom:1px solid var(--line);min-width:0}
  .num strong{display:block;white-space:nowrap;font:900 clamp(1.9rem,3.6vw,3rem)/1 var(--disp);letter-spacing:-0.04em;color:var(--accent);font-variant-numeric:tabular-nums}
  .num span{display:block;margin-top:10px;font-weight:600}
  .num small{display:block;margin-top:4px;color:var(--soft);font-size:.86rem;line-height:1.45}

  /* causes (dark) */
  .causes{background:var(--choco);color:var(--choco-ink)}
  .causes-track{position:relative}
  .causes-sticky{padding-block:clamp(56px,8vw,96px)}
  .causes-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;margin-bottom:28px}
  .causes-head h2{font-size:clamp(2.6rem,7vw,5.4rem);font-weight:900}
  .causes-head p{color:var(--choco-soft);max-width:360px;font-size:.95rem}
  .chips{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:26px}
  .chips button{font:600 .78rem/1 var(--body);padding:8px 14px;border-radius:999px;border:1px solid var(--choco-line);background:transparent;color:var(--choco-ink);cursor:pointer}
  .chips button[aria-pressed="true"]{background:var(--choco-ink);color:var(--choco);border-color:var(--choco-ink)}
  .rail{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px;scrollbar-width:thin;scrollbar-color:var(--choco-line) transparent}
  .ccard{flex:0 0 min(84%,360px);scroll-snap-align:start;background:var(--choco-2);border-radius:20px;padding:26px;display:flex;flex-direction:column;gap:14px;border:1px solid var(--choco-line)}
  .ccard .n{font:900 3rem/1 var(--disp);color:var(--accent);letter-spacing:-0.04em}
  .ccard h3{font-size:1.7rem;font-weight:800}
  .ccard dl{margin:0;display:flex;flex-direction:column;gap:10px}
  .ccard dt{font-size:.72rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--choco-soft)}
  .ccard dd{margin:0;font-size:.93rem;line-height:1.5}
  .ccard dd a{color:var(--choco-ink);text-decoration-color:var(--accent);text-underline-offset:3px}
  .ccard .odds{margin-top:auto;font-size:.76rem;color:var(--choco-soft)}
  /* pinned horizontal scroll on wide screens */
  @media (min-width:900px) and (prefers-reduced-motion:no-preference){
    .causes.pinned .causes-track{height:var(--track-h,300vh)}
    .causes.pinned .causes-sticky{position:sticky;top:56px;height:calc(100vh - 56px);display:flex;flex-direction:column;justify-content:center;overflow:hidden}
    .causes.pinned .rail{overflow:visible;scroll-snap-type:none;will-change:transform}
    .causes.pinned .ccard{flex-basis:360px}
  }

  /* method */
  .method{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
  @media(max-width:900px){.method{grid-template-columns:1fr}}
  .steps{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
  .steps li{display:grid;grid-template-columns:56px 1fr;gap:12px;padding:20px 0;border-bottom:1px solid var(--line)}
  .steps .k{font:900 1.6rem/1 var(--disp);color:var(--accent)}
  .steps h3{font-size:1.15rem;font-weight:800;letter-spacing:-0.02em}
  .steps p{color:var(--soft);font-size:.93rem;margin-top:4px}
  .boxes{display:flex;flex-direction:column;gap:16px}
  .box{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px}
  .box h3{font-size:1.3rem;font-weight:800;margin-bottom:12px}
  .box ul{margin:0;padding-left:18px;display:flex;flex-direction:column;gap:8px;font-size:.93rem}
  .box li::marker{color:var(--accent)}
  .box .warn{margin-top:12px;font-size:.84rem;background:#fbeee6;color:#7a2e12;padding:10px 12px;border-radius:10px}

  /* faq */
  .faq{max-width:820px}
  .faq details{border-top:1px solid var(--line)}
  .faq details:last-child{border-bottom:1px solid var(--line)}
  .faq summary{list-style:none;cursor:pointer;padding:20px 0;display:flex;justify-content:space-between;gap:16px;font:800 1.15rem/1.25 var(--disp);letter-spacing:-0.02em}
  .faq summary::-webkit-details-marker{display:none}
  .faq summary::after{content:"+";font:400 1.6rem/1 var(--body);color:var(--accent);transition:transform .2s}
  .faq details[open] summary::after{transform:rotate(45deg)}
  .faq details p{padding-bottom:20px;color:var(--soft);max-width:680px}

  /* cta */
  .cta{background:var(--accent);color:var(--accent-ink);border-radius:26px;padding:clamp(32px,6vw,64px);display:grid;grid-template-columns:1.3fr auto;gap:24px;align-items:center;position:relative;overflow:hidden}
  @media(max-width:720px){.cta{grid-template-columns:1fr}}
  .cta h2{font-size:clamp(2rem,5vw,3.6rem);font-weight:900}
  .cta p{margin-top:12px;opacity:.9;max-width:460px}
  .cta a{justify-self:start;background:var(--accent-ink);color:var(--accent);text-decoration:none;font-weight:700;padding:14px 24px;border-radius:999px;white-space:nowrap}
  .cta img{position:absolute;right:-40px;bottom:-50px;width:220px;opacity:.18;transform:rotate(-18deg);pointer-events:none}

  /* sources + footer */
  .sources{font-size:.84rem;color:var(--soft)}
  .sources h2{font-size:1.2rem;font-weight:800;color:var(--ink);margin-bottom:12px;letter-spacing:-0.02em}
  .sources ul{margin:0;padding-left:18px;display:flex;flex-direction:column;gap:6px}
  .sources a{color:var(--ink);text-underline-offset:3px}
  footer{border-top:1px solid var(--line);padding-block:28px;font-size:.8rem;color:var(--soft)}
  footer .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
  footer a{color:var(--ink)}

  /* ---------- fil d'Ariane + sommaire d'article ---------- */
  .crumbs{font-size:.8rem;color:var(--soft);margin-bottom:14px;display:flex;gap:8px;flex-wrap:wrap}
  .crumbs a{color:var(--soft);text-decoration:none}
  .crumbs a:hover{color:var(--accent)}
  .crumbs span[aria-current]{color:var(--ink);font-weight:600}
  .toc{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px 24px}
  .toc h2{font-size:1rem;font-weight:800;letter-spacing:-0.01em;margin-bottom:12px}
  .toc ol{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px 24px;counter-reset:t}
  @media(max-width:820px){.toc ol{grid-template-columns:1fr}}
  .toc li{counter-increment:t}
  .toc a{display:flex;gap:10px;padding:8px 0;border-bottom:1px solid var(--line);text-decoration:none;font-weight:500;font-size:.93rem}
  .toc a::before{content:counter(t,decimal-leading-zero);font:800 .82rem/1.6 var(--disp);color:var(--accent)}
  .toc a:hover{color:var(--accent)}
  .nav-links a[aria-current="page"]{color:var(--ink);font-weight:600}

  /* ---------- page sommaire du Guide ---------- */
  .gcat{display:grid;grid-template-columns:260px 1fr;gap:32px;padding-block:36px;border-top:1px solid var(--line)}
  @media(max-width:820px){.gcat{grid-template-columns:1fr;gap:14px}}
  .gcat h2{font-size:1.9rem;font-weight:900}
  .gcat .cat-note{color:var(--soft);font-size:.9rem;margin-top:8px}
  .glist{list-style:none;margin:0;padding:0}
  .gitem a,.gitem > div{display:grid;grid-template-columns:52px 1fr auto;gap:14px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line);text-decoration:none}
  .gitem:first-child a,.gitem:first-child > div{padding-top:4px}
  .gitem .k{font:900 1.4rem/1 var(--disp);color:var(--accent)}
  .gitem h3{font-size:1.25rem;font-weight:800;letter-spacing:-0.02em}
  .gitem p{color:var(--soft);font-size:.9rem;margin-top:4px}
  .gitem .go{font-size:.8rem;font-weight:600;white-space:nowrap;color:var(--accent)}
  .gitem a:hover h3{color:var(--accent)}
  .gitem.soon .k,.gitem.soon h3{color:var(--soft)}
  .gitem.soon .go{color:var(--soft);background:var(--bg);border:1px solid var(--line);padding:4px 10px;border-radius:999px}
  .hero.small .wrap{min-height:0;grid-template-columns:1fr}
  .hero.small{padding-block:64px 56px}
  @media(max-width:640px){
    .gitem a,.gitem > div{grid-template-columns:40px 1fr;row-gap:8px}
    .gitem .go{grid-column:2;justify-self:start}
  }

  /* ---------- Livre : barre de lecture, en-tête de chapitre, navigation entre chapitres ---------- */
  .readbar{position:fixed;left:0;right:0;top:calc(env(safe-area-inset-top,0px) + 56px);height:3px;z-index:49;pointer-events:none}
  .readbar i{display:block;height:100%;background:var(--accent);transform-origin:0 50%;transform:scaleX(0)}
  .chapter-tag{display:inline-flex;align-items:center;gap:10px;font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:18px}
  .chapter-tag b{font:900 .95rem/1 var(--disp);letter-spacing:-0.01em;background:var(--accent);color:var(--accent-ink);padding:6px 10px;border-radius:8px;text-transform:none}
  .chapter-tag span{color:var(--soft)}
  .chapnav{border-top:1px solid var(--line);padding-block:36px 44px}
  .chapnav .wrap{display:grid;grid-template-columns:1fr auto 1fr;gap:16px;align-items:stretch}
  @media(max-width:720px){.chapnav .wrap{grid-template-columns:1fr 1fr}.chapnav .toc-link{grid-column:1/-1;grid-row:2;justify-self:center}}
  .chapnav a.pn{display:flex;flex-direction:column;gap:6px;text-decoration:none;padding:18px 20px;border:1px solid var(--line);border-radius:16px;background:var(--surface);min-width:0;transition:border-color .2s,transform .2s}
  .chapnav a.pn:hover{border-color:var(--accent);transform:translateY(-2px)}
  .chapnav a.pn small{font-size:.74rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--soft)}
  .chapnav a.pn strong{font:800 1.05rem/1.2 var(--disp);letter-spacing:-0.02em}
  .chapnav a.next{text-align:right;grid-column:3}
  @media(max-width:720px){.chapnav a.next{grid-column:2}}
  .chapnav .toc-link{align-self:center;font-weight:600;font-size:.88rem;text-decoration:none;color:var(--ink);padding:10px 16px;border-radius:999px;border:1px solid var(--line);white-space:nowrap}
  .chapnav .toc-link:hover{color:var(--accent);border-color:var(--accent)}
  .chapnav .spacer{visibility:hidden}

  /* ---------- Livre : couverture et table des matières ---------- */
  .cover-stats{display:flex;gap:28px;flex-wrap:wrap;margin-top:26px}
  .cover-stats div strong{display:block;font:900 2rem/1 var(--disp);color:var(--accent);letter-spacing:-0.03em}
  .cover-stats div span{font-size:.84rem;color:var(--soft)}
  .cover-cta{display:inline-flex;margin-top:28px;background:var(--ink);color:var(--bg);text-decoration:none;font-weight:700;padding:14px 24px;border-radius:999px}
  .cover-cta:hover{background:var(--accent)}
  .part{display:grid;grid-template-columns:260px 1fr;gap:32px;padding-block:36px;border-top:1px solid var(--line)}
  @media(max-width:820px){.part{grid-template-columns:1fr;gap:14px}}
  .part .roman{font:900 3.2rem/1 var(--disp);color:var(--peach);letter-spacing:-0.04em}
  .part h2{font-size:1.9rem;font-weight:900;margin-top:4px}
  .part .part-note{color:var(--soft);font-size:.9rem;margin-top:8px}

  /* ---------- Encart qui renvoie vers un outil ---------- */
  .box p{font-size:.93rem;color:var(--soft)}
  .box p strong{color:var(--ink)}
  .box-tool{border-color:var(--accent)}
  .box-link{display:inline-flex;margin-top:16px;background:var(--accent);color:var(--accent-ink);text-decoration:none;font-weight:600;font-size:.88rem;padding:10px 18px;border-radius:999px}
  .box-link:hover{background:var(--ink)}

  /* ---------- Tableau côte à côte ---------- */
  .vs-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:18px;background:var(--surface)}
  .vs{width:100%;border-collapse:collapse;min-width:520px;font-size:.93rem}
  .vs th,.vs td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
  .vs tr:last-child th,.vs tr:last-child td{border-bottom:0}
  .vs thead th{font:800 1.05rem/1.2 var(--disp);letter-spacing:-0.02em;background:var(--bg)}
  .vs thead th.hl{background:var(--accent);color:var(--accent-ink)}
  .vs tbody th{font-weight:600;color:var(--soft);font-size:.82rem;letter-spacing:.02em;width:30%}
  .vs-note{margin-top:12px;font-size:.84rem;color:var(--soft)}

  /* ---------- Étiquette annotée ---------- */
  .label-demo{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:40px;align-items:start}
  @media(max-width:860px){.label-demo{grid-template-columns:1fr}}
  .bag{position:relative;background:#e9d6bd;border-radius:22px 22px 30px 30px;padding:46px 26px 30px;box-shadow:0 30px 60px -30px rgba(61,34,22,.55);max-width:420px;justify-self:center;width:100%}
  .bag::before{content:"";position:absolute;left:0;right:0;top:0;height:26px;border-radius:22px 22px 0 0;background:repeating-linear-gradient(90deg,#d7bf9f 0 6px,#e2cbac 6px 12px)}
  .bag .valve{position:absolute;top:40px;right:24px;width:26px;height:26px;border-radius:50%;background:#cdb392;box-shadow:inset 0 0 0 5px #bfa37f}
  .bag .sheet{background:#fbf7f0;border-radius:12px;padding:22px 20px;font-size:.88rem;line-height:1.4;color:#2b1d14}
  .bag .brand-l{font:900 1.5rem/1 var(--disp);letter-spacing:-0.03em}
  .bag .sub{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:#8a6f5a;margin:6px 0 16px}
  .bag .row{display:flex;align-items:baseline;gap:10px;padding:7px 0;border-top:1px dashed #dccab5}
  .bag .row b{font-weight:600;min-width:0}
  .bag .row small{color:#8a6f5a;font-size:.66rem;letter-spacing:.04em;text-transform:uppercase;width:104px;flex:none}
  .pin{flex:none;width:22px;height:22px;border-radius:50%;background:var(--accent);color:#fff;font:700 .72rem/22px var(--body);text-align:center}
  .legend{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;border-top:1px solid var(--line)}
  .legend li{display:grid;grid-template-columns:30px 1fr;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
  .legend h3{font-size:1.05rem;font-weight:800;letter-spacing:-0.02em}
  .legend p{color:var(--soft);font-size:.9rem;margin-top:2px}

  /* ---------- Frise ---------- */
  .timeline{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:8px}
  .timeline::before{content:"";position:absolute;left:0;right:0;top:15px;height:4px;border-radius:4px;background:linear-gradient(90deg,#e6c46a 0 22%,#7fae7a 22% 70%,#c9b8a6 70%)}
  @media(max-width:820px){.timeline{grid-template-columns:1fr;gap:0;padding-left:34px}.timeline::before{left:13px;right:auto;top:0;bottom:0;width:4px;height:auto;background:linear-gradient(180deg,#e6c46a 0 22%,#7fae7a 22% 70%,#c9b8a6 70%)}}
  .tl{position:relative;padding-top:46px}
  .tl::before{content:"";position:absolute;top:6px;left:0;width:22px;height:22px;border-radius:50%;background:var(--surface);border:4px solid var(--ink)}
  @media(max-width:820px){.tl{padding:0 0 26px}.tl::before{left:-31px;top:0}}
  .tl.best::before{border-color:#4f8a4a;background:#7fae7a}
  .tl strong{display:block;font:900 1.5rem/1 var(--disp);letter-spacing:-0.03em}
  .tl span{display:block;font-weight:600;margin-top:6px}
  .tl p{color:var(--soft);font-size:.9rem;margin-top:6px}

  /* ---------- Grille de 4 ---------- */
  .quad{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
  @media(max-width:900px){.quad{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media(max-width:520px){.quad{grid-template-columns:1fr}}
  .quad .tcard h3{font-size:1.35rem}
  .quad .ico{width:44px;height:44px;border-radius:12px;background:var(--peach);display:grid;place-items:center}
  .quad .ico svg{width:24px;height:24px;stroke:var(--accent);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
  .sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
  [id]{scroll-margin-top:72px}
  .p-wheel{display:flex;flex-wrap:wrap;gap:8px}
  .p-wheel span{font:600 .86rem/1 var(--body);padding:9px 14px;border-radius:999px;background:var(--peach);color:var(--choco)}

  /* ---------- Couverture : le livre qui tourne ses pages ---------- */
  .cover-book{position:relative;display:grid;place-items:center}
  .cover-book video{display:block;width:min(118%,720px);max-width:none;aspect-ratio:16/9;height:auto;background:var(--bg);
    -webkit-mask-image:radial-gradient(ellipse 66% 62% at 52% 54%,#000 55%,transparent 98%);mask-image:radial-gradient(ellipse 66% 62% at 52% 54%,#000 55%,transparent 98%)}
  @media(max-width:820px){.cover-book video{width:100%;max-width:100%}}
  /* l'image fixe reste visible même si le téléphone bloque la lecture auto (mode économie d'énergie) */
  .cover-book{background:url("frames/book/livre-poster.webp") center/min(100%,720px) auto no-repeat}
  .cover-book video{background:transparent}
  @media(max-width:820px){
    .hero .wrap > .cover-book{order:-1;margin:-8px -20px 0}
    .cover-book{background-size:100% auto}
  }
  .cover-book{-webkit-mask-image:radial-gradient(ellipse 66% 62% at 52% 54%,#000 55%,transparent 98%);mask-image:radial-gradient(ellipse 66% 62% at 52% 54%,#000 55%,transparent 98%)}
  .cover-book video{-webkit-mask-image:none;mask-image:none}

  /* ---------- Vidéo d'ouverture de chapitre (duel des grains) ---------- */
  .hero-video{position:relative;display:grid;place-items:center;
    -webkit-mask-image:radial-gradient(ellipse 66% 62% at 50% 50%,#000 55%,transparent 98%);mask-image:radial-gradient(ellipse 66% 62% at 50% 50%,#000 55%,transparent 98%)}
  .hero-video video{display:block;width:min(118%,720px);max-width:none;aspect-ratio:16/9;height:auto;cursor:pointer}
  .duel-replay{position:absolute;bottom:14%;left:50%;transform:translateX(-50%);font:600 .82rem/1 var(--body);padding:10px 16px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;box-shadow:0 10px 24px -14px rgba(0,0,0,.35)}
  .duel-replay:hover{border-color:var(--accent);color:var(--accent)}
  @media(max-width:820px){
    .hero .wrap > .hero-video{order:-1;margin:-8px -20px 0}
    .hero-video video{width:100%;max-width:100%}
  }