:root{
  --bg:#b07e5b;
  --bg-dark:#7c5940;
  --ink:#232926;
  --ink-soft:#3a423e;
  --cream:#f4ecb7;
  --white:#fff;
  --card:#ffffff;
}

*{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth}

body{
  font-family:"Nunito",system-ui,-apple-system,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.55;
}

img{max-width:100%;display:block}

/* ---------- HERO ---------- */
.hero{
  position:relative;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(255,255,255,.10), transparent 55%),
    linear-gradient(160deg, #b5825e 0%, #a3714e 55%, #8d5f41 100%);
  overflow:hidden;
  padding:48px 20px 48px;
  min-height:92vh;
  display:flex;
  flex-direction:column;
  justify-content:center;
}

/* big ghost letters behind */
.hero::before{
  content:"SYSTEME D CARBONNAIS";
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:"Fredoka",sans-serif;
  font-weight:700;
  font-size:clamp(80px, 14vw, 170px);
  color:rgba(46,38,30,.16);
  letter-spacing:.02em;
  white-space:nowrap;
  transform:rotate(-2deg);
  pointer-events:none;
  user-select:none;
}

.hero-inner{
  position:relative;
  max-width:1000px;
  margin:0 auto;
  text-align:center;
  color:var(--white);
}

.hero-inner *{
  text-shadow:0 2px 0 rgba(35,41,38,.55), 0 6px 18px rgba(0,0,0,.25);
}

.tagline{
  font-size:clamp(18px,2.4vw,25px);
  font-weight:700;
  letter-spacing:.02em;
}

.brand{
  font-family:"Fredoka",sans-serif;
  font-weight:700;
  margin-top:18px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:2px;
}

.brand-line.small{
  font-size:clamp(18px,2.5vw,24px);
  letter-spacing:.35em;
}

.brand-line.big{
  font-size:clamp(46px,8vw,84px);
  display:flex;
  align-items:baseline;
  gap:8px;
}
.brand-line.big img{
  width:clamp(48px,7vw,76px);
  height:auto;
  transform:translateY(-4px);
}

.brand-promise{
  font-weight:700;
  font-size:clamp(14px,1.8vw,18px);
  line-height:1.35;
  margin-top:10px;
  letter-spacing:.04em;
}

.logo-wrap{margin:26px auto 8px;max-width:320px}
.logo{
  width:100%;
  height:auto;
  margin:0 auto;
  filter:drop-shadow(0 10px 18px rgba(0,0,0,.35));
}


.why{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:8px 26px;
  font-weight:700;
  font-size:clamp(13px,1.6vw,16px);
  margin-top:20px;
}

/* hero illustrations */
.illus{
  position:absolute;
  pointer-events:none;
  filter:drop-shadow(0 8px 10px rgba(0,0,0,.3));
  animation:float 5s ease-in-out infinite;
}
.ampoule{width:70px;left:8%;top:8%;animation-delay:0s}
.prise{width:96px;right:20%;top:30%;transform:rotate(12deg);animation-delay:.8s}
.robot{width:150px;right:-60px;bottom:40px;animation-delay:1.6s}
.bobine{width:90px;left:5%;bottom:22%;transform:rotate(-8deg);animation-delay:2.4s}

@keyframes float{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-10px)}
}
.prise{animation-name:floatRotate}
@keyframes floatRotate{
  0%,100%{transform:rotate(12deg) translateY(0)}
  50%{transform:rotate(12deg) translateY(-10px)}
}
.bobine{animation-name:floatRotate2}
@keyframes floatRotate2{
  0%,100%{transform:rotate(-8deg) translateY(0)}
  50%{transform:rotate(-8deg) translateY(-10px)}
}

/* ---------- NAV ---------- */
.nav{
  background:var(--ink);
  position:sticky;
  top:0;
  z-index:50;
  box-shadow:0 4px 14px rgba(0,0,0,.25);
}
.nav-inner{
  max-width:1000px;
  margin:0 auto;
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  justify-content:center;
  padding:10px 14px;
}
.nav a{
  color:var(--cream);
  text-decoration:none;
  font-family:"Fredoka",sans-serif;
  font-weight:600;
  font-size:16px;
  padding:8px 16px;
  border-radius:999px;
  transition:background .2s, transform .15s;
}
.nav a:hover{background:rgba(255,255,255,.12);transform:translateY(-1px)}
.nav a.nav-contact{
  background:var(--cream);
  color:var(--ink);
}
.nav a.nav-contact:hover{background:#fff}

/* répa'reur en blouse, caisse à outils, qui traverse au-dessus du bandeau */
/* temporairement désactivé — retirer le display:none pour le réactiver */
.walker-fig{
  display:none!important;
  position:absolute;
  left:-70px;
  bottom:100%;
  width:70px;
  height:66px;
  z-index:5;
  filter:drop-shadow(0 3px 4px rgba(0,0,0,.35));
  animation:
    walk-across 26s linear infinite,
    bobbing .4s ease-in-out infinite alternate;
  pointer-events:none;
}
.walker-fig svg{
  width:100%;
  height:100%;
  overflow:visible;
}
.walker-fig line{
  stroke:var(--cream);
  stroke-width:3.2;
  stroke-linecap:round;
}
.w-head{
  fill:var(--ink);
  stroke:var(--cream);
  stroke-width:3;
}
.w-cap{
  fill:var(--ink);
  stroke:var(--cream);
  stroke-width:3;
}
.w-coat{
  fill:var(--cream);
  stroke:var(--ink);
  stroke-width:3.5;
  stroke-linejoin:round;
}
.w-coat-line{
  stroke:var(--ink);
  stroke-width:2.5;
  stroke-linecap:round;
}
.w-box{
  fill:var(--cream);
  stroke:var(--ink);
  stroke-width:3;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.w-screw{
  fill:none;
  stroke:var(--ink);
  stroke-width:2.5;
  stroke-linecap:round;
}
.w-leg-a,.w-leg-b,.w-arm-a,.w-arm-b{
  transform-origin:20px 16px;
}
.w-leg-a,.w-leg-b{transform-origin:20px 33px}
@keyframes step-a{
  0%,100%{transform:rotate(24deg)}
  50%{transform:rotate(-24deg)}
}
@keyframes step-b{
  0%,100%{transform:rotate(-24deg)}
  50%{transform:rotate(24deg)}
}
@keyframes sway-a{
  0%,100%{transform:rotate(10deg)}
  50%{transform:rotate(-14deg)}
}
@keyframes sway-b{
  0%,100%{transform:rotate(-8deg)}
  50%{transform:rotate(5deg)}
}
.w-leg-a{animation:step-a .8s ease-in-out infinite}
.w-leg-b{animation:step-b .8s ease-in-out infinite}
.w-arm-a{animation:sway-a .8s ease-in-out infinite}
.w-arm-b{animation:sway-b .8s ease-in-out infinite}
@keyframes walk-across{
  from{left:-70px}
  to{left:100vw}
}
@keyframes bobbing{
  from{margin-top:0}
  to{margin-top:3px}
}
@media (prefers-reduced-motion:reduce){
  .walker-fig,.w-leg-a,.w-leg-b,.w-arm-a,.w-arm-b{animation:none}
  .walker-fig{left:50%}
}

/* ---------- SECTIONS ---------- */
.section{
  background:var(--white);
  padding:64px 20px;
  position:relative;
}
.bg-tool{
  position:absolute;
  pointer-events:none;
  opacity:.09;
  z-index:0;
}
.bg-tool svg{width:100%;height:auto;display:block}
.hero-inner{z-index:1}

.section > *{position:relative;z-index:1}
.section.alt{background:#fbf7ef}
.section-inner,
.section > *{max-width:1000px;margin-left:auto;margin-right:auto}
.section-title{
  font-family:"Fredoka",sans-serif;
  font-weight:700;
  font-size:clamp(30px,5vw,46px);
  display:flex;
  align-items:baseline;
  gap:12px;
  flex-wrap:wrap;
}
.q{
  background:var(--ink);
  color:var(--cream);
  padding:4px 14px 6px;
  border-radius:10px;
  font-size:.7em;
  letter-spacing:.06em;
  transform:rotate(-1.5deg);
  display:inline-block;
}

.section-lede{
  margin-top:14px;
  font-size:clamp(15px,1.9vw,18px);
  color:var(--ink-soft);
  max-width:720px;
  margin-left:auto;margin-right:auto;
}

/* grid cards */
.grid{
  margin-top:36px;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:20px;
  max-width:1000px;
  margin-left:auto;margin-right:auto;
}
.card{
  background:#fff;
  border:2.5px solid var(--ink);
  border-radius:16px;
  padding:22px 20px;
  box-shadow:6px 6px 0 rgba(35,41,38,.14);
  transition:transform .2s, box-shadow .2s;
}
.card:hover{
  transform:translate(-2px,-2px);
  box-shadow:9px 9px 0 rgba(35,41,38,.2);
}
.card-icon{
  font-size:40px;
  display:block;
  margin-bottom:10px;
}
.card h3{
  font-family:"Fredoka",sans-serif;
  font-weight:600;
  font-size:20px;
  margin-bottom:8px;
}
.card p{font-size:15px;color:var(--ink-soft)}

/* why items */
.why-grid{
  margin-top:36px;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:20px;
  max-width:1000px;
  margin-left:auto;margin-right:auto;
}
.why-item{
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  text-align:center;
  padding:26px 18px;
  background:#fff;
  border-radius:16px;
  border:2.5px dashed rgba(35,41,38,.35);
}
.why-item img{
  width:84px;
  margin:0 auto 14px;
  filter:drop-shadow(0 6px 8px rgba(0,0,0,.25));
}
.why-item h3{
  font-family:"Fredoka",sans-serif;
  font-weight:600;
  font-size:19px;
  margin-bottom:8px;
}
.why-item p{font-size:14.5px;color:var(--ink-soft)}

/* steps */
.steps{
  margin-top:36px;
  counter-reset:step;
  list-style:none;
  display:grid;
  gap:16px;
  max-width:760px;
  margin-left:auto;margin-right:auto;
}
.steps li{
  counter-increment:step;
  position:relative;
  padding:20px 20px 20px 78px;
  background:#fff;
  border:2.5px solid var(--ink);
  border-radius:14px;
  box-shadow:5px 5px 0 rgba(35,41,38,.14);
}
.steps li::before{
  content:counter(step);
  position:absolute;
  left:18px;top:50%;
  transform:translateY(-50%);
  width:44px;height:44px;
  border-radius:50%;
  background:var(--ink);
  color:var(--cream);
  font-family:"Fredoka",sans-serif;
  font-weight:700;
  font-size:22px;
  display:flex;align-items:center;justify-content:center;
}
.steps h3{
  font-family:"Fredoka",sans-serif;
  font-weight:600;
  font-size:19px;
  margin-bottom:6px;
}
.steps p{font-size:15px;color:var(--ink-soft)}

/* contact */
.contact{
  background:linear-gradient(160deg,#8d5f41,#7c5940);
  color:var(--white);
  padding:64px 20px;
  position:relative;
  overflow:hidden;
}
.contact .bg-tool{opacity:.12}
.contact-inner{
  max-width:760px;
  margin:0 auto;
  text-align:center;
  position:relative;
  z-index:1;
}
.contact h2{
  font-family:"Fredoka",sans-serif;
  font-weight:700;
  font-size:clamp(24px,4.5vw,40px);
  display:flex;
  gap:12px;
  align-items:baseline;
  justify-content:center;
  flex-wrap:wrap;
  text-shadow:0 2px 0 rgba(35,41,38,.5);
}
.contact p{
  margin-top:14px;
  font-size:16px;
  opacity:.95;
}
.illus-contact{
  width:120px;
  margin:0 auto 6px;
  filter:drop-shadow(0 8px 10px rgba(0,0,0,.35));
  animation:float 5s ease-in-out infinite;
}
.btn{
  display:inline-block;
  margin-top:22px;
  background:var(--cream);
  color:var(--ink);
  font-family:"Fredoka",sans-serif;
  font-weight:600;
  font-size:18px;
  padding:14px 28px;
  border-radius:999px;
  text-decoration:none;
  border:3px solid var(--ink);
  box-shadow:5px 5px 0 rgba(0,0,0,.3);
  transition:transform .15s, box-shadow .15s;
}
.btn:hover{
  transform:translate(-2px,-2px);
  box-shadow:7px 7px 0 rgba(0,0,0,.3);
}

/* footer */
.footer{
  background:var(--ink);
  color:var(--cream);
  text-align:center;
  padding:22px 16px;
  font-size:14px;
}
.footer p + p{margin-top:4px;opacity:.8}

/* responsive tweaks */
@media (max-width:720px){
  .hero{min-height:auto;padding:40px 16px 90px}
  .illus.robot{width:110px;right:-24px;bottom:24px}
  .illus.ampoule{width:56px}
  .illus.prise{width:74px;right:6%;top:36%}
  .illus.bobine{width:66px;left:-4px}
}