/* Atelier Bolt — site vitrine.
   Direction : l'établi et la carte électronique. Fond « paillasse » vert-de-gris, une carte (PCB) sarcelle
   où Bolt est sérigraphié avec ses servomoteurs, orange étincelle pour l'action, sarcelle circuit pour la technique. */

@font-face{font-family:"Unbounded";font-weight:500;font-display:swap;src:url(/site/fonts/unbounded-latin-500-normal.woff2) format("woff2")}
/* le 600 sert aussi pour le gras (700) des titres : une police de moins à télécharger (21 Ko), écart invisible */
@font-face{font-family:"Unbounded";font-weight:600 800;font-display:swap;src:url(/site/fonts/unbounded-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"Atkinson Hyperlegible";font-weight:400;font-display:swap;src:url(/site/fonts/atkinson-hyperlegible-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Atkinson Hyperlegible";font-weight:400;font-style:italic;font-display:swap;src:url(/site/fonts/atkinson-hyperlegible-latin-400-italic.woff2) format("woff2")}
@font-face{font-family:"Atkinson Hyperlegible";font-weight:700;font-display:swap;src:url(/site/fonts/atkinson-hyperlegible-latin-700-normal.woff2) format("woff2")}

:root{
  --bg:#eef3f1; --bg-alt:#e1eae7; --surface:#ffffff; --ink:#12222b; --muted:#44565e; --line:#c4d3cf;
  --spark:#ff6a2b; --spark-ink:#ad3a09; --spark-soft:#ffe6d9;
  --circuit:#0f8b8d; --circuit-ink:#0a6466; --circuit-soft:#d2edea;
  --pcb:#0b3f40; --pcb-2:#0e4a4b; --pcb-line:#2a6f6e; --silk:#f2f7f5; --joint-b:#62d6d2;
  --todo-bg:#fff0b3; --todo-ink:#4d3b00;
  --display:"Unbounded", "Avenir Next", system-ui, sans-serif;
  --text:"Atkinson Hyperlegible", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono:ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --wrap:1200px; --gutter:clamp(16px, 4vw, 40px);
  --r-sm:10px; --r:16px; --r-lg:28px;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0c1618; --bg-alt:#101e21; --surface:#152629; --ink:#e4eeeb; --muted:#a2b6b4; --line:#27403f;
    --spark:#ff7a3d; --spark-ink:#ff9d6b; --spark-soft:#36200f;
    --circuit:#2fb5b3; --circuit-ink:#62d6d2; --circuit-soft:#0f3130;
    --pcb:#0a2c2d; --pcb-2:#0c3536; --pcb-line:#1f5a59;
    --todo-bg:#4a3c08; --todo-ink:#ffe9a0;
  }
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:84px}
@media (prefers-reduced-motion: no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--text);font-size:1.0625rem;line-height:1.6;
  font-kerning:normal;text-rendering:optimizeLegibility;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--circuit-ink);text-underline-offset:.18em;text-decoration-thickness:.08em}
a:hover{color:var(--ink)}
:focus-visible{outline:3px solid var(--circuit-ink);outline-offset:3px;border-radius:4px}
h1,h2,h3{font-family:var(--display);font-weight:600;letter-spacing:-.02em;line-height:1.12;margin:0 0 .5em;text-wrap:balance}
h1{font-size:clamp(2.1rem, 4.6vw, 3.9rem);line-height:1.04}
h2{font-size:clamp(1.65rem, 3vw, 2.45rem)}
h3{font-size:1.14rem;font-weight:500;letter-spacing:-.01em}
h4{font-size:1rem;margin:1.2em 0 .3em}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.narrow{max-width:820px}
.col-text{max-width:820px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;z-index:50;background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:var(--r-sm)}
.skip:focus{top:12px}
.todo{background:var(--todo-bg);color:var(--todo-ink);padding:.05em .3em;border-radius:4px;font-weight:700}

/* ---------------------------------------------------------------- boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;min-height:46px;padding:.65em 1.25em;
  border-radius:14px;border:2px solid var(--spark);background:var(--spark);color:#12222b;font:700 1rem/1.2 var(--text);
  text-decoration:none;cursor:pointer;transition:transform .12s, background-color .12s}
.btn:hover{color:#12222b;background:#ff8148;border-color:#ff8148}
.btn:active{transform:translateY(1px)}
.btn.ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn.ghost:hover{border-color:var(--ink)}
.btn.big{min-height:54px;padding:.8em 1.5em;font-size:1.06rem}
.actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------------------------------------------------------------- en-tête */
.top{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:24px;padding:12px var(--gutter);
  background:color-mix(in srgb, var(--bg) 88%, transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font:600 1.12rem/1 var(--display);letter-spacing:-.02em;white-space:nowrap}
.brand b{font-weight:600;color:var(--spark-ink)}
.brand .mark{width:30px;height:34px;flex:none}
.top nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.top nav a{display:block;padding:8px 12px;border-radius:10px;color:var(--ink);text-decoration:none;font-weight:700;font-size:.97rem}
.top nav a:hover{background:var(--bg-alt)}
.top nav a[aria-current=page]{background:var(--circuit-soft);color:var(--circuit-ink)}
.top-cta{margin-left:auto;display:flex;gap:8px}
.top-cta .btn{min-height:42px;padding:.5em 1em;font-size:.95rem}
.menu-btn{display:none;margin-left:auto;font:700 .95rem var(--text);color:var(--ink);background:transparent;border:2px solid var(--line);border-radius:12px;padding:8px 14px;cursor:pointer}
.menu{position:sticky;top:63px;z-index:19;background:var(--surface);border-bottom:1px solid var(--line)}
.menu ul{list-style:none;margin:0;padding:8px var(--gutter) 16px}
.menu a{display:block;padding:12px 4px;border-bottom:1px solid var(--line);color:var(--ink);text-decoration:none;font-weight:700}
@media (max-width: 960px){
  .top nav,.top-cta{display:none}
  .menu-btn{display:inline-block}
}

/* ---------------------------------------------------------------- héros */
.hero{padding:clamp(40px, 6vw, 80px) 0 clamp(56px, 7vw, 96px)}
.hero-grid{display:grid;grid-template-columns:minmax(0, 1.08fr) minmax(0, .92fr);gap:clamp(32px, 5vw, 72px);align-items:center}
.hero h1{max-width:13ch}
.lead{font-size:clamp(1.08rem, 1.5vw, 1.24rem);color:var(--muted);max-width:56ch;margin-bottom:1.6em}
.specs{display:grid;grid-template-columns:repeat(4, minmax(0, 1fr));gap:0;margin:44px 0 0;border-top:2px solid var(--ink)}
.specs div{display:flex;flex-direction:column-reverse;justify-content:flex-end;padding:14px 14px 0 0}
.specs div + div{padding-left:16px;border-left:1px solid var(--line)}
.specs dd{margin:0;font:600 clamp(1.6rem, 2.6vw, 2.15rem)/1.1 var(--display);letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.specs dt{color:var(--muted);font-size:.92rem;line-height:1.3;margin-top:6px}
@media (max-width: 960px){
  .hero-grid{grid-template-columns:1fr}
  .hero h1{max-width:16ch}
}
@media (max-width: 560px){
  .specs{grid-template-columns:repeat(2, minmax(0, 1fr))}
  .specs div:nth-child(3){padding-left:0;border-left:0}
  .specs div:nth-child(n+3){border-top:1px solid var(--line);margin-top:14px}
}

/* la carte électronique où Bolt est sérigraphié */
.board{position:relative;margin:0;background:
  radial-gradient(circle at 1px 1px, color-mix(in srgb, var(--silk) 13%, transparent) 1px, transparent 1.6px) 0 0/18px 18px,
  linear-gradient(160deg, var(--pcb-2), var(--pcb));
  border-radius:var(--r-lg);padding:clamp(18px, 3vw, 32px);color:var(--silk);
  box-shadow:inset 0 0 0 1px color-mix(in srgb, var(--silk) 10%, transparent)}
.board::before,.board::after{content:"";position:absolute;width:14px;height:14px;border-radius:50%;
  border:3px solid color-mix(in srgb, var(--silk) 55%, transparent);background:var(--bg);top:16px;left:16px}
.board::after{left:auto;right:16px}
.robot-svg{width:100%;max-width:420px;margin:0 auto;display:block;overflow:visible}
.robot-svg .limbs path{fill:none;stroke:var(--silk);stroke-width:7;stroke-linecap:round;stroke-linejoin:round;opacity:.9}
.robot-svg .antenna{stroke:var(--silk);stroke-width:4}
.robot-svg .tip{fill:var(--spark)}
.robot-svg .head{fill:#0f8b8d;stroke:var(--silk);stroke-width:4}
.robot-svg .eye{fill:#fff}
.robot-svg .pupil{fill:#12222b}
.robot-svg .smile{fill:none;stroke:#fff;stroke-width:4;stroke-linecap:round}
.robot-svg .torso{fill:#ff6a2b;stroke:var(--silk);stroke-width:4}
.robot-svg .chip{fill:#12222b;stroke:#12222b}
.robot-svg .pins line{stroke:#12222b;stroke-width:3}
.robot-svg .chip-t,.robot-svg .pack-t{fill:#fff;font:700 12px var(--text);letter-spacing:.04em}
.robot-svg .pack-t{fill:#12222b}
.robot-svg .pack{fill:#ffd2bd;stroke:#12222b;stroke-width:2}
.robot-svg .pelvis,.robot-svg .foot,.robot-svg .hand{fill:var(--pcb);stroke:var(--silk);stroke-width:4}
.robot-svg .j circle{fill:var(--pcb);stroke:var(--silk);stroke-width:3}
.robot-svg .jA circle{fill:var(--spark)}
.robot-svg .jB circle{fill:var(--joint-b)}
.robot-svg .j text{fill:var(--silk);font:700 13px var(--text)}
@media (prefers-reduced-motion: no-preference){
  .robot-svg .j circle{animation:power .5s ease-out both;animation-delay:calc(var(--i) * 70ms + 250ms)}
  .robot-svg .j text{animation:label .4s ease-out both;animation-delay:calc(var(--i) * 70ms + 250ms)}
  .robot-svg .eyes{animation:blink 5s 2.2s infinite;transform-origin:200px 96px}
  @keyframes power{from{fill:var(--pcb);r:5}60%{r:11}to{}}
  @keyframes label{from{opacity:0}to{opacity:1}}
  @keyframes blink{0%,94%,100%{transform:scaleY(1)}97%{transform:scaleY(.1)}}
}
.legend{list-style:none;margin:18px 0 0;padding:16px 0 0;border-top:1px solid color-mix(in srgb, var(--silk) 22%, transparent);
  display:grid;grid-template-columns:1fr 1fr;gap:10px 18px;font-size:.92rem;line-height:1.35}
.legend li{display:flex;gap:10px;align-items:baseline}
.chip{flex:none;display:inline-block;min-width:26px;text-align:center;padding:2px 7px;border-radius:7px;font:700 .8rem/1.4 var(--text);color:#12222b}
.chip.a{background:var(--spark)}
.chip.b{background:var(--joint-b)}
.chip.c{background:transparent;color:var(--silk);border:1.5px solid color-mix(in srgb, var(--silk) 60%, transparent)}
@media (max-width: 560px){.legend{grid-template-columns:1fr}}

/* ---------------------------------------------------------------- sections */
.sec{padding:clamp(64px, 8vw, 112px) 0}
.sec.alt{background:var(--bg-alt)}
.sec-head{max-width:760px;margin-bottom:clamp(32px, 4vw, 52px)}
.sec-head p{font-size:1.12rem;color:var(--muted);margin:0}
.more{margin:28px 0 0;font-weight:700}
.note{color:var(--muted);font-size:.95rem}
.fine{color:var(--muted);font-size:.93rem;max-width:80ch;margin-top:28px}
.split{display:grid;grid-template-columns:minmax(0, .9fr) minmax(0, 1.1fr);gap:clamp(32px, 5vw, 72px);align-items:center}
@media (max-width: 860px){.split{grid-template-columns:1fr}}

/* captures de la plateforme */
.shot{margin:0}
.shot img{width:100%;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  box-shadow:0 1px 0 var(--line), 0 18px 40px -24px rgba(18, 34, 43, .45)}
.shot.portrait{max-width:440px;justify-self:center;width:100%}
.shot figcaption{margin-top:10px;font-size:.95rem;color:var(--muted)}

/* comment ça marche : une vraie séquence, donc numérotée */
.steps{list-style:none;margin:0;padding:0;counter-reset:st;display:grid;grid-template-columns:repeat(2, minmax(0, 1fr));gap:56px 48px}
.steps li{counter-increment:st;display:flex;flex-direction:column;gap:20px}
.step-t{position:relative;padding-left:62px;min-height:46px}
.step-t::before{content:counter(st);position:absolute;left:0;top:-2px;width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;border:4px solid var(--circuit);background:var(--surface);color:var(--ink);font:600 1.05rem var(--display)}
.step-t h3{margin:.25em 0 .35em;font-size:1.3rem}
.step-t p{color:var(--muted);margin:0;max-width:52ch}
@media (max-width: 760px){.steps{grid-template-columns:1fr;gap:48px}}

/* une leçon : la carte de l'enfant et l'aperçu de « Pour aller plus loin » */
.compare{display:grid;grid-template-columns:repeat(2, minmax(0, 1fr));gap:24px;align-items:start}
.track{background:var(--surface);border-radius:var(--r);padding:clamp(22px, 3vw, 34px);border:1px solid var(--line);border-top:8px solid var(--spark)}
.track.eng{border-top-color:var(--circuit)}
.track > header{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.track > header h3{font-size:1.45rem;margin:0}
.track > header p{margin:0;color:var(--muted);font-weight:700}
.story{font-style:italic;font-size:1.12rem;line-height:1.55}
.stepcard{background:var(--spark-soft);border-radius:12px;padding:16px 18px;margin:18px 0}
.stepcard p{margin:0 0 .5em}
.stepcard p:last-child{margin:0}
.stepno{font-weight:700;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.tag{display:inline-block;font-size:.8rem;font-weight:700;padding:2px 9px;border-radius:99px;background:var(--surface);color:var(--spark-ink);border:1.5px solid currentColor}
.check{color:var(--ink)}
.badge-line{color:var(--muted);margin:0}
.track.eng h4{font-family:var(--display);font-weight:500;font-size:1.06rem;margin:0 0 .5em}
.track.eng h4 + p{margin-bottom:.8em}
.track.eng h4:not(:first-of-type){margin-top:1.4em}
.vars{list-style:none;margin:0;padding:12px 14px;border-radius:12px;background:var(--circuit-soft);display:flex;flex-wrap:wrap;gap:6px 18px;font-size:.95rem}
.vars b{color:var(--circuit-ink);font-size:1.08em;margin-right:4px}
.calc{margin:.6em 0 0;padding-left:1.3em}
.calc li{margin:.35em 0}
.verified{margin:14px 0 0;padding-top:12px;border-top:1px dashed var(--line);color:var(--circuit-ink);font-weight:700;font-size:.95rem}
.stepcard .deep-btn{display:inline-block;margin:.6em 0 0;padding:4px 12px;border:2px solid var(--circuit);border-radius:99px;color:var(--circuit-ink, var(--circuit));font-weight:700;font-size:.9rem}
.compare-src{margin:18px 0 0;color:var(--muted);font-size:.95rem}
.contains{list-style:none;padding:0;margin:40px 0 0;display:grid;grid-template-columns:repeat(3, minmax(0, 1fr));gap:24px;border-top:2px solid var(--ink)}
.contains li{padding-top:14px;color:var(--muted)}
.contains b{display:block;color:var(--ink);font-family:var(--display);font-weight:500;margin-bottom:4px}
@media (max-width: 860px){.compare,.contains{grid-template-columns:1fr}}

/* le chemin : une piste de circuit, niveau par niveau */
.path{display:grid;grid-template-columns:minmax(0, 1fr) minmax(0, 1fr);gap:clamp(32px, 5vw, 64px);align-items:start}
.proj h3{font-size:1.4rem;display:flex;flex-direction:column;gap:6px}
.proj h3 span{font:700 .95rem var(--text);letter-spacing:0;color:var(--circuit-ink)}
.proj2 h3 span{color:var(--spark-ink)}
.proj-m{color:var(--muted);margin-bottom:22px}
.trace{list-style:none;margin:0;padding:0;position:relative;--trace:var(--circuit)}
.proj2 .trace{--trace:var(--spark)}
.trace::before{content:"";position:absolute;left:21px;top:22px;bottom:22px;width:4px;border-radius:2px;background:var(--trace)}
.lvl{position:relative;display:grid;grid-template-columns:46px minmax(0, 1fr);gap:16px;padding:6px 0}
.pad{position:relative;z-index:1;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;
  background:var(--surface);border:4px solid var(--trace);font:600 1rem var(--display)}
.lvl-body{min-width:0;padding-top:4px}
.lvl details{border-bottom:1px solid var(--line)}
.lvl summary{cursor:pointer;list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:2px 12px;padding:6px 28px 12px 0;position:relative}
.lvl summary::-webkit-details-marker{display:none}
.lvl summary::after{content:"";position:absolute;right:4px;top:14px;width:9px;height:9px;border-right:2.5px solid var(--muted);border-bottom:2.5px solid var(--muted);transform:rotate(45deg);transition:transform .2s}
.lvl details[open] summary::after{transform:rotate(-135deg);top:18px}
.lvl-t{font-weight:700;font-size:1.06rem;flex:1 1 100%}
.lvl-m{color:var(--muted);font-size:.93rem;white-space:nowrap}
.cap{display:inline-block;font-size:.85rem;font-weight:700;padding:1px 10px;border-radius:99px;background:var(--spark-soft);color:var(--spark-ink)}
.kitnote{margin:0 0 6px;font-size:.9rem;color:var(--muted)}
.kitnote span{font-weight:700;color:var(--ink)}
.lessons{list-style:none;margin:0 0 14px;padding:0}
.lessons li{display:grid;grid-template-columns:3.4em minmax(0, 1fr) auto;gap:2px 12px;padding:7px 0;border-top:1px dashed var(--line);font-size:.97rem}
.lessons li:first-child{border-top:0}
.lid{color:var(--muted);font-variant-numeric:tabular-nums;font-weight:700}
.lm{color:var(--muted);white-space:nowrap;text-align:right}
.lfs{display:flex;flex-wrap:wrap;gap:4px 12px;margin-top:2px}
.lfs span{font-size:.82rem;font-weight:700;color:var(--circuit-ink)}
.lvl-mat{margin:8px 0 14px;border:0!important}
.lvl-mat summary{padding:6px 28px 6px 0;font-size:.93rem;font-weight:700;color:var(--circuit-ink)}
.matlist{list-style:none;margin:4px 0 8px;padding:0}
.matlist li{display:grid;grid-template-columns:3.4em minmax(0, 1fr);gap:2px 12px;padding:6px 0;border-top:1px dashed var(--line);font-size:.93rem}
.mq{font-weight:700;font-variant-numeric:tabular-nums}
.mn small{display:block;color:var(--muted);font-size:.85rem}
.matguide{margin:0;font-size:.9rem}
@media (max-width: 860px){.path{grid-template-columns:1fr}}

/* simulateurs */
.gallery{display:grid;grid-template-columns:repeat(3, minmax(0, 1fr));gap:24px}
@media (max-width: 860px){.gallery{grid-template-columns:1fr}}

.ticks{list-style:none;padding:0;margin:0 0 1.2em}
.ticks li{position:relative;padding-left:30px;margin:.6em 0}
.ticks li::before{content:"";position:absolute;left:2px;top:.42em;width:14px;height:8px;border-left:3px solid var(--circuit);border-bottom:3px solid var(--circuit);transform:rotate(-45deg)}

/* matériel */
.mat-grid{display:grid;grid-template-columns:minmax(0, 1.7fr) minmax(0, 1fr);gap:clamp(28px, 4vw, 56px);align-items:start}
@media (max-width: 860px){.mat-grid{grid-template-columns:1fr}}
.kits{list-style:none;margin:0;padding:0;border-top:2px solid var(--ink)}
.kit{padding:16px 0 18px;border-bottom:1px solid var(--line)}
.kit-h{display:grid;grid-template-columns:4.2em minmax(0, 1fr) auto;gap:4px 16px;align-items:baseline}
.kit-n{font-weight:700;color:var(--muted)}
.kit-t{font-weight:700}
.kit-b{font:600 1.05rem var(--display);white-space:nowrap;font-variant-numeric:tabular-nums}
.range{display:block;position:relative;height:8px;margin:12px 0 0 calc(4.2em + 16px);border-radius:4px;background:var(--line)}
.range i{position:absolute;top:0;bottom:0;border-radius:4px;background:var(--circuit)}
.kits-total{margin:18px 0 0;color:var(--muted);font-size:.95rem}
.kits-total b{color:var(--ink)}
@media (max-width: 560px){
  .kit-h{grid-template-columns:minmax(0, 1fr) auto}
  .kit-n{grid-column:1 / -1}
  .range{margin-left:0}
}
.kits.full .kit{padding:28px 0}
.arts{width:100%;border-collapse:collapse;margin-top:18px;font-size:.96rem;table-layout:fixed}
.arts th:nth-child(2){width:3.5em;text-align:center}.arts th:nth-child(3){width:9.5em}.arts th:nth-child(4){width:34%}
.arts th{text-align:left;font-size:.85rem;color:var(--muted);font-weight:700;padding:6px 10px 6px 0;border-bottom:1px solid var(--line)}
.arts td{padding:10px 10px 10px 0;border-bottom:1px dashed var(--line);vertical-align:top}
.arts td:nth-child(2){text-align:center}
.arts code{font:.86rem var(--mono);background:var(--bg-alt);padding:2px 6px;border-radius:6px;overflow-wrap:anywhere}
@media (max-width: 700px){
  .arts thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .arts tr{display:grid;grid-template-columns:minmax(0, 1fr) auto;gap:4px 12px;padding:12px 0;border-bottom:1px dashed var(--line)}
  .arts{table-layout:auto}
  .arts td{padding:0;border:0}
  .arts td:nth-child(1){grid-column:1 / -1;font-weight:700}
  .arts td:nth-child(2){text-align:left}
  .arts td:nth-child(2)::before{content:"Quantité : "}
  .arts td:nth-child(4){grid-column:1 / -1}
}
.print3d{border:2px dashed var(--line);border-radius:var(--r);padding:24px}
.print3d h3{font-size:1.2rem}
.status{display:inline-block;margin:0 0 12px;font-weight:700;font-size:.85rem;padding:3px 12px;border-radius:99px}
.status.soon{background:var(--bg);color:var(--muted);border:1.5px solid var(--line)}
.status.ok{background:var(--circuit-soft);color:var(--circuit-ink)}
.pieces{columns:2;font-size:.95rem}

/* sécurité */
.safety{display:grid;grid-template-columns:repeat(3, minmax(0, 1fr));gap:32px}
.safety > div{border-top:2px solid var(--ink);padding-top:16px}
.safety > div:nth-child(2){border-top-color:var(--spark)}
.safety p{color:var(--muted);margin:0}
@media (max-width: 860px){.safety{grid-template-columns:1fr;gap:28px}}

/* offres */
.offers{display:grid;grid-template-columns:repeat(4, minmax(0, 1fr));gap:18px;align-items:stretch}
.offer{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px 22px}
.offer.star{border:2px solid var(--spark);box-shadow:0 22px 44px -30px color-mix(in srgb, var(--spark) 80%, transparent)}
.offer h3{font-size:1.25rem;margin-bottom:.4em}
.price{font:600 2.3rem/1 var(--display);letter-spacing:-.03em;margin:0 0 10px;font-variant-numeric:tabular-nums}
.price small{font:700 .9rem var(--text);letter-spacing:0;color:var(--muted)}
.offer .scope{font-weight:700;font-size:.93rem;color:var(--circuit-ink);margin-bottom:.8em}
.offer .sum{color:var(--muted);font-size:.97rem}
.offer ul{list-style:none;margin:0 0 22px;padding:14px 0 0;border-top:1px solid var(--line);font-size:.95rem}
.offer li{position:relative;padding-left:24px;margin:.45em 0}
.offer li::before{content:"";position:absolute;left:2px;top:.45em;width:11px;height:6px;border-left:2.5px solid var(--circuit);border-bottom:2.5px solid var(--circuit);transform:rotate(-45deg)}
.offer .btn{margin-top:auto;width:100%}
@media (max-width: 1100px){.offers{grid-template-columns:repeat(2, minmax(0, 1fr))}}
@media (max-width: 600px){.offers{grid-template-columns:1fr}}

/* formulaire */
.form-split{align-items:start}
.waitlist{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:clamp(22px, 3vw, 34px)}
.field{margin:0 0 18px;border:0;padding:0;min-width:0}
.field > label,.field legend{display:block;font-weight:700;margin-bottom:6px;padding:0}
input,select{font:inherit;color:var(--ink)}
.waitlist input[type=email],.waitlist input:not([type]),.waitlist select{width:100%;min-height:50px;padding:10px 14px;border-radius:12px;border:2px solid var(--line);background:var(--bg)}
.waitlist input:focus-visible,.waitlist select:focus-visible{outline:3px solid var(--circuit-ink);outline-offset:1px;border-color:var(--circuit)}
.radios{display:grid;gap:8px}
.radios label,.consent label{display:flex;gap:12px;align-items:flex-start;cursor:pointer}
.radios label{padding:10px 14px;border:2px solid var(--line);border-radius:12px;background:var(--bg)}
.radios label:has(input:checked){border-color:var(--circuit);background:var(--circuit-soft)}
.radios input,.consent input{accent-color:var(--circuit);width:20px;height:20px;margin:2px 0 0;flex:none}
.consent label{font-weight:400;font-size:.97rem}
.err{color:#b3261e;font-weight:700;font-size:.92rem;margin:6px 0 0}
.err:empty{display:none}
[aria-invalid=true]{border-color:#b3261e !important}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-msg{margin:14px 0 0;font-weight:700}
.form-msg.ok{color:var(--circuit-ink)}
.form-msg.bad{color:#b3261e}
@media (prefers-color-scheme: dark){.err,.form-msg.bad{color:#ff8a80}[aria-invalid=true]{border-color:#ff8a80 !important}}

/* FAQ */
.faq{border-top:2px solid var(--ink)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:20px 44px 20px 0;position:relative;font:500 1.08rem/1.35 var(--display);letter-spacing:-.01em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before,.faq summary::after{content:"";position:absolute;right:8px;top:50%;width:16px;height:2.5px;background:var(--ink);border-radius:2px}
.faq summary::after{transform:rotate(90deg);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(0)}
.faq details p{margin:0 0 22px;color:var(--muted);max-width:68ch}

/* pages intérieures */
.page-head{padding:clamp(48px, 7vw, 88px) 0 clamp(16px, 3vw, 32px)}
.page-head + .sec{padding-top:clamp(24px, 3vw, 40px)}
.page-head h1{font-size:clamp(2rem, 4vw, 3.2rem);max-width:20ch}
.cols3{display:grid;grid-template-columns:repeat(3, minmax(0, 1fr));gap:32px}
.cols3 .col{border-top:2px solid var(--ink);padding-top:16px}
.cols3 .col.kid{border-top-color:var(--spark)}
.cols3 .col.eng{border-top-color:var(--circuit)}
.cols3 .col > p{color:var(--muted)}
.cols3 h2{font-size:1.3rem}
@media (max-width: 860px){.cols3{grid-template-columns:1fr}}
.cta-band{background:var(--pcb);color:var(--silk)}
.cta-band p{max-width:68ch;color:color-mix(in srgb, var(--silk) 82%, transparent)}
.cta-band .btn.ghost{color:var(--silk);border-color:color-mix(in srgb, var(--silk) 40%, transparent)}
.robot-split{align-items:start}
.datasheet{margin:0;border-top:2px solid var(--ink)}
.datasheet div{display:grid;grid-template-columns:9em minmax(0, 1fr);gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}
.datasheet dt{font-weight:700}
.datasheet dd{margin:0;color:var(--muted)}
@media (max-width: 560px){.datasheet div{grid-template-columns:1fr;gap:2px}}
.missions{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:10px}
.missions li{display:flex;gap:14px;align-items:center;flex-wrap:wrap;padding:12px 0;border-bottom:1px solid var(--line);font-weight:700}
.table-wrap{overflow-x:auto}
.servos{width:100%;border-collapse:collapse;font-size:.97rem}
.servos th{text-align:left;color:var(--muted);font-size:.86rem;padding:8px 12px 8px 0;border-bottom:2px solid var(--ink)}
.servos td{padding:9px 12px 9px 0;border-bottom:1px solid var(--line)}
.servos td:first-child{font-weight:700;font-variant-numeric:tabular-nums;width:4.5em}
.servos td:last-child{white-space:nowrap;color:var(--muted)}
.legal h2{font-size:1.25rem;margin-top:2em}
.legal h2:first-child{margin-top:0}
.legal li{margin:.4em 0}

/* pied de page : la carte électronique, dans les deux thèmes */
.foot{background:var(--pcb);color:var(--silk);padding:64px 0 32px}
.foot a{color:var(--silk)}
.foot .brand{color:var(--silk)}
.foot .brand b{color:#ff9d6b}
.foot-grid{display:grid;grid-template-columns:1.5fr repeat(3, 1fr);gap:32px}
.foot-grid p{color:color-mix(in srgb, var(--silk) 78%, transparent);font-size:.95rem;max-width:36ch;margin-top:14px}
.foot h2{font:700 .95rem var(--text);letter-spacing:0;margin:0 0 10px;color:var(--silk)}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin:.45em 0;font-size:.95rem}
.foot .todo{color:var(--todo-ink)}
.foot-note{margin-top:44px;padding-top:20px;border-top:1px solid var(--pcb-line);font-size:.88rem;color:color-mix(in srgb, var(--silk) 70%, transparent)}
@media (max-width: 860px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width: 520px){.foot-grid{grid-template-columns:1fr}}
.cta-band{border-bottom:1px solid var(--pcb-line)}
.sec-head + .path,h2 + .path{margin-top:32px}

/* ---------------------------------------------------------------- compte client et paiement */
.test-banner{margin:0;padding:8px var(--gutter);background:var(--todo-bg);color:var(--todo-ink);font-size:.95rem;text-align:center;border-bottom:1px solid var(--line)}
.auth > *{max-width:620px}
.acct input[type=password],.acct input[type=text]{width:100%;min-height:50px;padding:10px 14px;border-radius:12px;border:2px solid var(--line);background:var(--bg)}
.acct input:focus-visible{outline:3px solid var(--circuit-ink);outline-offset:1px;border-color:var(--circuit)}
.acct .consent label span{flex:1}
.acct .btn.big{width:100%}
.hint{color:var(--muted);font-size:.92rem;margin:6px 0 0}
.auth-alt{margin:18px 0 0}
.form-msg:focus{outline:none}
.radios.two{grid-template-columns:repeat(auto-fit, minmax(220px, 1fr))}
.order{background:var(--surface);border:2px solid var(--spark);border-radius:var(--r);padding:clamp(20px, 3vw, 30px);margin-bottom:22px}
.order h2{font-size:1.5rem}
.order .scope{font-weight:700;color:var(--circuit-ink)}
.ticks-list{margin:0 0 12px;padding-left:1.2em}
.ticks-list li{margin:.3em 0}
.pay-status{border-color:var(--circuit)}
.pay-status .pending{display:flex;align-items:center;gap:12px;margin:0 0 10px}
.ok-line{font-size:1.1rem;color:var(--circuit-ink);margin:0}
.spinner{width:22px;height:22px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--circuit);flex:none}
@media (prefers-reduced-motion: no-preference){.spinner{animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}}
.acct-page .wrap > .acct-block + .acct-block{margin-top:56px;padding-top:40px;border-top:2px solid var(--ink)}
.acct-block h2{font-size:clamp(1.35rem, 2.4vw, 1.8rem)}
.acct-block h3{margin-top:32px}
.acct-block .waitlist{margin-top:18px}
.cards{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.cards li{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;padding:14px 18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r)}
.cards .c-main{flex:1 1 240px;min-width:0}
.cards .c-main b{font-family:var(--display);font-weight:600;font-size:1.08rem}
.cards .c-sub{display:block;color:var(--muted);font-size:.93rem}
.pill{display:inline-block;font-size:.8rem;font-weight:700;padding:3px 10px;border-radius:99px;background:var(--circuit-soft);color:var(--circuit-ink)}
.pill.off{background:var(--bg-alt);color:var(--muted)}
.pill.test{background:var(--todo-bg);color:var(--todo-ink)}
.btn.small{min-height:38px;padding:.35em .9em;font-size:.92rem}
.danger{border-color:#b3261e}
.danger-btn{background:transparent;border-color:#b3261e;color:#b3261e}
.danger-btn:hover{background:#b3261e;border-color:#b3261e;color:#fff}
@media (prefers-color-scheme: dark){.danger{border-color:#ff8a80}.danger-btn{border-color:#ff8a80;color:#ff8a80}.danger-btn:hover{background:#ff8a80;color:#12222b}}
.page-head .actions{margin-top:8px}
.notice-box{background:var(--todo-bg);color:var(--todo-ink);border-radius:var(--r);padding:16px 20px;margin:0 0 28px}
.notice-box p{margin:0 0 8px}.notice-box p:last-child{margin:0}
.notice-box .btn.ghost{color:var(--todo-ink);border-color:currentColor}
.resend-msg{margin-left:8px;font-weight:700}

/* champ mot de passe avec bouton afficher/masquer */
.pw-wrap{position:relative;display:block}
.pw-wrap input{width:100%;padding-right:52px}
.pw-toggle{position:absolute;right:4px;top:50%;transform:translateY(-50%);width:44px;height:40px;display:grid;place-items:center;
  background:transparent;border:0;border-radius:8px;color:inherit;cursor:pointer;padding:0}
.pw-toggle:hover{background:rgba(127,127,127,.12)}
.pw-toggle:focus-visible{outline:3px solid var(--focus,#0f8b8d);outline-offset:1px}
/* compte : la suppression repliée (un accident de moins) ; bandeau « compte créé » ; liens après la confirmation */
.danger-fold{margin-top:22px;border-top:1px solid var(--line);padding-top:12px}
.danger-fold summary{cursor:pointer;font-weight:700;color:#b3261e}
@media (prefers-color-scheme: dark){.danger-fold summary{color:#ff8a80}}
.notice-box.ok{background:var(--circuit-soft, #d6f0ef);color:inherit}
.after-ok{margin-top:16px}
.btn:disabled,button.btn[disabled]{opacity:.55;cursor:default;pointer-events:none}

/* ---------------------------------------------------------------- deux robots au choix (parcours) */
.robots-choice{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:20px;margin:8px 0 12px}
.robot-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.robot-card img{display:block;width:min(240px,100%);height:auto;margin:0 auto 10px}
.robot-card h3{margin-bottom:.3em}
.rc-facts{display:grid;gap:8px;margin:12px 0 0}
.rc-facts div{display:grid;grid-template-columns:minmax(110px,max-content) 1fr;gap:4px 12px}
.rc-facts dt{font-weight:700;color:var(--circuit-ink)}
.rc-facts dd{margin:0}
@media (max-width:480px){.rc-facts div{grid-template-columns:1fr}}
.tag-p{display:inline-block;margin-left:6px;padding:1px 8px;border-radius:99px;background:var(--circuit-soft);color:var(--circuit-ink);font-weight:700;font-size:.78rem}
.proj-m.fork{background:var(--circuit-soft);color:var(--ink);border-radius:var(--r-sm);padding:8px 12px}
.proj.proj-roues{border-left:4px solid var(--circuit);padding-left:14px}
details.soon{margin:10px 0 0}
details.soon summary{cursor:pointer;font-weight:700;color:var(--circuit-ink)}

/* ------------------------------------------------- « Pour qui ? », coût total, essai gratuit, listes d'achat */
.hero-more{margin:14px 0 0;font-size:.98rem}
.who-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));gap:20px}
.who-card{background:var(--surface);border:1px solid var(--line);border-top:4px solid var(--circuit);border-radius:var(--r);padding:18px 20px}
.who-card:nth-child(2){border-top-color:var(--spark)}
.who-card:nth-child(4){border-top-color:var(--ink)}
.who-card p,.who-card li{color:var(--ink)}
.who-card .ticks{margin:0 0 .8em}
.try-line{margin:22px 0 0;display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center;font-weight:700}
.costs-title{margin-top:48px;font-size:1.35rem}
.costs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr));gap:20px;margin-top:12px}
.cost-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px}
.cost-card h3{margin-bottom:.6em}
table.costs{width:100%;border-collapse:collapse;font-size:.97rem}
table.costs th,table.costs td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:top}
table.costs thead th{font-size:.82rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
table.costs small{display:block;color:var(--muted);font-size:.85rem;font-weight:400}
table.costs td b{white-space:nowrap}
.cost-dl{margin:12px 0 0;font-size:.95rem}
.cost-dl a{display:inline-block;padding:6px 0}
.shop-links{font-weight:700}
.shop-links a{display:inline-block;padding:6px 0}
.shop-kit{margin:0 0 34px}
.shop-kit h2{font-size:1.25rem}
.shop-kit h2 small{font-family:var(--text);font-size:.95rem;color:var(--muted);font-weight:700;margin-left:.4em}
.shop-kit .box{font-size:1.15rem}
.crumb{margin:0 0 6px;font-size:.95rem}
.error-page{min-height:46vh}
@media (max-width: 560px){table.costs th,table.costs td{padding:8px 4px;font-size:.92rem}}
@media print{
  header.top,.menu,footer.foot,.skip,.no-print,.test-banner{display:none !important}
  body{background:#fff;color:#000;font-size:11pt}
  .page-head,.sec{padding:8px 0 !important;background:none !important}
  .shop-kit{break-inside:avoid-page}
  table.arts code{white-space:normal}
  a{color:#000;text-decoration:none}
}

/* résumé public du guide du matériel (/materiel) et page « réservé aux familles inscrites » */
.guide-cta{border:2px solid var(--ink);border-radius:16px;padding:18px 20px;margin:0 0 32px;max-width:80ch}
.guide-cta p{margin:0 0 10px}
.guide-cta .actions{margin:0}
.sum-robot + .sum-robot{margin-top:40px}
.sum-robot h2 small{display:block;font-family:"Atkinson Hyperlegible",sans-serif;font-size:1rem;font-weight:400;color:var(--muted);margin-top:4px}
.kit-f{margin:8px 0 0;color:var(--muted);overflow-wrap:anywhere}