/* Global Environnement — direction « épurée » : blanc et gris très clair, typographie Inter Tight serrée et grande,
   un seul accent (vert Global Environnement), boutons pilules noirs, cartes sans bordure aux coins très arrondis,
   sections sombres pour les temps forts. Mouvement discret : apparition au défilement, scène 3D en hero. */
:root{
  --bg:#ffffff; --bg-2:#f5f5f7; --card:#ffffff; --card-2:#f5f5f7; --fg:#1d1d1f; --muted:#6e6e73; --line:#d2d2d7;
  --accent:#3fae00; --accent-2:#4bbf00; --accent-soft:#e9f7e0; --dark:#0a0a0a; --dark-2:#161617; --on-dark:#f5f5f7; --on-dark-muted:#a1a1a6;
  --heat:#ff6a3d; --cool:#3d8bff;
  --font-display:"Inter Tight","Inter","SF Pro Display",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  --font-body:"Inter","SF Pro Text",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  --font-mono:"IBM Plex Mono","SFMono-Regular",Menlo,Consolas,monospace;
  --r:22px; --r-sm:14px; --wrap:1120px; --gutter:22px;
  --ease:cubic-bezier(.22,.8,.2,1); --shadow:0 2px 12px rgba(0,0,0,.05),0 24px 48px -24px rgba(0,0,0,.12);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#000000; --bg-2:#161617; --card:#1d1d1f; --card-2:#1d1d1f; --fg:#f5f5f7; --muted:#a1a1a6; --line:#3a3a3c;
    --accent-soft:#163a0a; --dark:#161617; --dark-2:#1d1d1f; --shadow:0 2px 12px rgba(0,0,0,.4),0 24px 48px -24px rgba(0,0,0,.6);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#000000; --bg-2:#161617; --card:#1d1d1f; --card-2:#1d1d1f; --fg:#f5f5f7; --muted:#a1a1a6; --line:#3a3a3c;
  --accent-soft:#163a0a; --dark:#161617; --dark-2:#1d1d1f; --shadow:0 2px 12px rgba(0,0,0,.4),0 24px 48px -24px rgba(0,0,0,.6);
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--font-body);font-size:1.0625rem;line-height:1.5;-webkit-font-smoothing:antialiased}
img,svg,canvas{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--font-display);margin:0 0 .4em;text-wrap:balance;color:var(--fg);font-weight:600;letter-spacing:-.025em;line-height:1.06}
h1{font-size:clamp(2.6rem,6.4vw,4.6rem)}
h2{font-size:clamp(2rem,4.2vw,3.1rem)}
h3{font-size:1.35rem;letter-spacing:-.015em;line-height:1.2}
p{margin:0 0 1em}
.lead{font-size:clamp(1.15rem,1.7vw,1.45rem);line-height:1.4;color:var(--muted);max-width:44ch;font-weight:400;letter-spacing:-.01em}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.kicker{font-family:var(--font-body);font-size:.95rem;font-weight:600;letter-spacing:-.005em;color:var(--accent);margin:0 0 .9rem;display:block}
.sec{padding-block:clamp(4.5rem,9vw,8rem)}
.sec-tight{padding-block:clamp(2.5rem,5vw,4rem)}
.sec-head{max-width:46rem;margin:0 auto clamp(2.5rem,5vw,4rem);text-align:center}
.sec-head .lead{margin-inline:auto}
.sec-head p{color:var(--muted);font-size:clamp(1.1rem,1.5vw,1.3rem);line-height:1.45}
.alt{background:var(--bg-2)}
.pine,.dark{background:var(--dark);color:var(--on-dark)}
.pine h1,.pine h2,.pine h3,.dark h1,.dark h2,.dark h3{color:var(--on-dark)}
.pine .lead,.pine p,.dark .lead,.dark p{color:var(--on-dark-muted)}
.pine .kicker,.dark .kicker{color:var(--accent-2)}
.skip{position:absolute;left:-999px;top:0;background:var(--fg);color:var(--bg);padding:.5rem 1rem;z-index:100}
.skip:focus{left:var(--gutter)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto} *,*::before,*::after{animation:none!important;transition:none!important}}

/* Boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;font-family:var(--font-body);font-weight:500;font-size:1.02rem;letter-spacing:-.005em;padding:.85rem 1.45rem;border-radius:999px;text-decoration:none;border:1px solid transparent;cursor:pointer;line-height:1.1;transition:transform .5s var(--ease),background .25s,box-shadow .5s var(--ease),opacity .25s}
.btn:hover{transform:translateY(-1px) scale(1.015)}
.btn:active{transform:scale(.98)}
.btn-lime,.btn-dark{background:var(--fg);color:var(--bg)}
.btn-lime:hover,.btn-dark:hover{background:#000;box-shadow:0 10px 30px -10px rgba(0,0,0,.5)}
:root[data-theme="dark"] .btn-lime,:root[data-theme="dark"] .btn-dark{background:#fff;color:#000}
.btn-ghost{background:transparent;color:var(--fg);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--fg)}
.dark .btn-lime,.pine .btn-lime,.dark .btn-dark,.pine .btn-dark{background:#fff;color:#000}
.dark .btn-ghost,.pine .btn-ghost{color:#fff;border-color:rgba(255,255,255,.35)}
.dark .btn-ghost:hover,.pine .btn-ghost:hover{border-color:#fff}
.btn-sm{padding:.55rem 1rem;font-size:.9rem}
.actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem}
.sec-head .actions,.hero .actions{justify-content:center}
.link{color:var(--accent);text-decoration:none;font-weight:500}
.link::after{content:" ›";font-weight:600}
.link:hover{text-decoration:underline}

/* En-tête */
.topbar{display:none}
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:color-mix(in srgb,var(--bg) 72%,transparent);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid color-mix(in srgb,var(--line) 60%,transparent)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:56px}
.brand{display:flex;align-items:center;text-decoration:none}
.brand img{height:36px;width:auto}
.nav ul{display:flex;gap:.1rem;margin:0;padding:0;align-items:center;list-style:none}
.nav a,.has-sub>button{text-decoration:none;font-family:var(--font-body);font-weight:500;font-size:.92rem;letter-spacing:-.005em;padding:.5rem .7rem;border-radius:999px;color:var(--fg);opacity:.85;background:none;border:0;cursor:pointer;display:inline-flex;align-items:center;gap:.3rem;transition:opacity .2s,background .2s}
.nav a:hover,.has-sub>button:hover{opacity:1;background:color-mix(in srgb,var(--fg) 6%,transparent)}
.nav a[aria-current="page"],.has-sub>button[aria-current="page"]{opacity:1;color:var(--accent)}
.nav a.btn{opacity:1;color:var(--bg);background:var(--fg);margin-left:.4rem;padding:.5rem 1rem;font-size:.88rem}
.nav a.btn:hover{background:#000}
.nav a.phone{font-variant-numeric:tabular-nums}
.has-sub{position:relative}
.has-sub>button::after{content:"";width:.38em;height:.38em;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);opacity:.7}
.sub{display:none;position:absolute;left:50%;transform:translateX(-50%);top:calc(100% + 10px);background:var(--card);border-radius:20px;padding:1.4rem 1.6rem;box-shadow:0 30px 80px -20px rgba(0,0,0,.35),0 0 0 1px color-mix(in srgb,var(--line) 60%,transparent);min-width:680px;grid-template-columns:repeat(3,1fr);gap:1.4rem;z-index:60}
.has-sub:hover .sub,.has-sub.open .sub,.has-sub:focus-within .sub{display:grid;animation:pop .35s var(--ease)}
@keyframes pop{from{opacity:0;transform:translateX(-50%) translateY(-6px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}
.sub h4{font-size:.78rem;letter-spacing:.02em;text-transform:uppercase;color:var(--muted);margin:0 0 .5rem;font-weight:600}
.sub a{display:block;padding:.38rem 0;font-weight:500;font-size:.98rem;opacity:1;border-radius:0}
.sub a:hover{background:none;color:var(--accent)}
.sub .all{grid-column:1/-1;border-top:1px solid var(--line);padding-top:.9rem;color:var(--accent);font-weight:600}
.menu-btn{display:none;background:none;border:0;padding:.4rem;color:var(--fg);cursor:pointer;width:40px;height:40px;position:relative}
.menu-btn::before,.menu-btn::after{content:"";position:absolute;left:10px;right:10px;height:1.5px;background:currentColor;transition:transform .3s var(--ease),top .3s}
.menu-btn::before{top:15px}.menu-btn::after{top:23px}
.menu-btn[aria-expanded="true"]::before{top:19px;transform:rotate(45deg)}
.menu-btn[aria-expanded="true"]::after{top:19px;transform:rotate(-45deg)}
.menu-btn span{position:absolute;left:-9999px}
@media (max-width:960px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:color-mix(in srgb,var(--bg) 92%,transparent);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--line);padding:.8rem var(--gutter) 1.4rem;max-height:calc(100vh - 56px);overflow:auto}
  .nav.open{display:block;animation:fade .3s var(--ease)}
  @keyframes fade{from{opacity:0}to{opacity:1}}
  .nav ul{flex-direction:column;align-items:stretch;gap:.1rem}
  .nav a,.has-sub>button{padding:.9rem .4rem;font-size:1.15rem;border-radius:0;border-bottom:1px solid color-mix(in srgb,var(--line) 70%,transparent);width:100%;justify-content:space-between;opacity:1}
  .nav a:hover,.has-sub>button:hover{background:none}
  .nav a.btn{margin:.9rem 0 0;border-radius:999px;justify-content:center;padding:.9rem;border-bottom:0}
  .sub{position:static;transform:none;display:grid;grid-template-columns:1fr;min-width:0;box-shadow:none;padding:.2rem 0 .8rem .6rem;gap:.6rem;background:none;animation:none}
  .sub a{border-bottom:0;padding:.3rem 0;font-size:1rem;color:var(--muted)}
  .sub .all{border-top:0;padding-top:.2rem}
  .hide-m{display:none}
}

/* Hero */
.hero{padding-block:clamp(3.5rem,8vw,6.5rem) 0;text-align:center;overflow:hidden}
.hero .wrap{display:grid;gap:0;justify-items:center}
.hero h1{max-width:18ch;margin-inline:auto}
.hero h1 strong{font-weight:600;background:linear-gradient(90deg,var(--accent),#7ad63a);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{margin:1.2rem auto 0;max-width:52ch;text-align:center}
.badges{display:flex;gap:.5rem;flex-wrap:wrap;justify-content:center;margin-top:1.4rem}
.badge{font-size:.82rem;font-weight:500;border-radius:999px;padding:.4rem .85rem;background:var(--bg-2);color:var(--muted)}
.badge.lime{background:var(--accent-soft);color:var(--accent)}
.hero .rise{animation:rise .9s var(--ease) both}
.hero .rise:nth-child(2){animation-delay:.08s}.hero .rise:nth-child(3){animation-delay:.16s}.hero .rise:nth-child(4){animation-delay:.24s}.hero .rise:nth-child(5){animation-delay:.32s}
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

/* Scène 3D */
.stage{position:relative;width:100%;max-width:1120px;margin:clamp(2rem,5vw,3.5rem) auto 0;aspect-ratio:16/9;max-height:620px;border-radius:var(--r);background:radial-gradient(120% 90% at 50% 0%,#ffffff 0%,#eef0f3 60%,#e4e7eb 100%);overflow:hidden;box-shadow:var(--shadow)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .stage{background:radial-gradient(120% 90% at 50% 0%,#2a2a2d 0%,#141416 60%,#0c0c0d 100%)}}
:root[data-theme="dark"] .stage{background:radial-gradient(120% 90% at 50% 0%,#2a2a2d 0%,#141416 60%,#0c0c0d 100%)}
.stage canvas{position:absolute;inset:0;width:100%!important;height:100%!important;cursor:grab}
.stage canvas:active{cursor:grabbing}
.stage .fallback{position:absolute;inset:0;display:grid;place-items:center;padding:1.5rem}
.stage .fallback .diagram{max-width:720px;width:100%}
.stage .seg{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);display:flex;background:color-mix(in srgb,var(--card) 80%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:999px;padding:4px;box-shadow:0 8px 30px -10px rgba(0,0,0,.3),0 0 0 1px color-mix(in srgb,var(--line) 60%,transparent);z-index:2}
.stage .seg button{border:0;background:none;font:inherit;font-weight:500;font-size:.9rem;padding:.5rem 1rem;border-radius:999px;color:var(--fg);cursor:pointer;white-space:nowrap}
.stage .seg button[aria-pressed="true"]{background:var(--fg);color:var(--bg)}
.stage .hud{position:absolute;top:16px;left:16px;display:flex;gap:.5rem;z-index:2}
.stage .hud span{font-family:var(--font-mono);font-size:.78rem;background:color-mix(in srgb,var(--card) 80%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:999px;padding:.35rem .7rem;box-shadow:0 0 0 1px color-mix(in srgb,var(--line) 60%,transparent)}
.stage .hud .hot{color:var(--heat)}.stage .hud .cold{color:var(--cool)}.stage .hud .ok{color:var(--accent)}
.stage .hint{position:absolute;right:16px;bottom:18px;font-size:.78rem;color:var(--muted);z-index:2}
@media (max-width:700px){.stage{aspect-ratio:4/5;border-radius:18px}.stage .hint{display:none}.stage .hud{flex-wrap:wrap}}
.stage-wide{max-width:none}

/* Bandeau de preuves */
.proof{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:1.5rem 2rem;margin-top:0;padding:clamp(2rem,5vw,3.5rem) 0 0;text-align:center}
.proof div{min-width:0}
.proof b{display:block;font-family:var(--font-display);font-size:clamp(2.2rem,4vw,3.2rem);font-weight:600;letter-spacing:-.03em;color:var(--fg);line-height:1}
.proof span{display:block;margin-top:.4rem;font-size:.95rem;color:var(--muted)}
.proof-label{font-size:.9rem;color:var(--muted);margin-top:1.75rem;text-align:center}

/* Schéma SVG (repli) */
.diagram{background:var(--card);border-radius:var(--r-sm);padding:1rem}
.diagram figcaption{font-size:.88rem;color:var(--muted);margin-top:.6rem;text-align:center}
.diagram text{font-family:var(--font-mono);font-size:11px;fill:var(--fg)}
.diagram .lbl{font-size:12px;font-weight:600}
.diagram .ttl{font-family:var(--font-display);font-size:13px;font-weight:600;fill:var(--fg)}
.diagram .wall{fill:none;stroke:var(--fg);stroke-width:1.5}
.diagram .roof{fill:var(--card);stroke:var(--fg);stroke-width:1.5}
.diagram .worker{fill:var(--fg)}
.diagram .fan{fill:var(--fg);stroke:var(--accent);stroke-width:2}
.diagram .arrow{stroke:var(--accent);stroke-width:2.5;fill:none}
.diagram .arrowhead{fill:var(--accent)}
.diagram .cond{fill:var(--fg);opacity:.6;font-size:11px}

/* Grilles & cartes */
.grid{display:grid;gap:1.2rem}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:1000px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:var(--card-2);border-radius:var(--r);padding:1.8rem;min-width:0;display:flex;flex-direction:column;gap:.55rem;transition:transform .6s var(--ease),box-shadow .6s var(--ease)}
.sec:not(.alt) .card{background:var(--bg-2)}
.alt .card{background:var(--card)}
.card h3{margin:0}
.card p{margin:0;color:var(--muted);font-size:1rem;line-height:1.5}
.card .code{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.04em;color:var(--muted);display:inline-block;padding:.25rem .55rem;border-radius:6px;background:color-mix(in srgb,var(--fg) 6%,transparent);align-self:flex-start;margin-top:.3rem}
.card .more{margin-top:auto;padding-top:.8rem;font-weight:500;font-size:.98rem;text-decoration:none;color:var(--accent)}
.card .more::after{content:" ›";font-weight:600}
.card .more:hover{text-decoration:underline}
.card.sol{text-decoration:none}
.card.sol:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.card .cat{font-size:.8rem;font-weight:600;letter-spacing:.01em;text-transform:uppercase;color:var(--muted)}
.card.sol h3{font-size:1.4rem}
.card-flag{background:var(--dark)!important;color:var(--on-dark)}
.card-flag h3{color:var(--on-dark)}.card-flag p{color:var(--on-dark-muted)}.card-flag .cat{color:var(--accent-2)}.card-flag .code{background:rgba(255,255,255,.1);color:var(--on-dark-muted)}
.ico{width:56px;height:56px;border-radius:16px;background:var(--card);display:grid;place-items:center;margin-bottom:.6rem;color:var(--fg);box-shadow:0 1px 2px rgba(0,0,0,.06)}
.alt .ico{background:var(--bg-2)}
.ico svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.card-flag .ico{background:var(--accent);color:#fff;box-shadow:none}
.sectors{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:.8rem}
.sector{background:var(--bg-2);border-radius:16px;padding:1.1rem 1.2rem;text-decoration:none;display:flex;flex-direction:column;gap:.15rem;min-width:0;transition:transform .5s var(--ease),background .3s}
.sector:hover{transform:translateY(-3px);background:var(--accent-soft)}
.sector b{font-family:var(--font-display);font-weight:600;font-size:1.05rem;letter-spacing:-.01em;color:var(--fg)}
.sector small{font-size:.8rem;color:var(--muted)}

/* Étapes */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:1.2rem;counter-reset:step}
.steps li{counter-increment:step;background:var(--card);border-radius:var(--r);padding:1.6rem;min-width:0;position:relative}
.steps li::before{content:counter(step,decimal-leading-zero);font-family:var(--font-display);font-size:2.4rem;font-weight:600;letter-spacing:-.04em;color:var(--accent);display:block;margin-bottom:.6rem;line-height:1}
.steps h3{font-size:1.1rem;margin:0 0 .35rem}
.steps p{margin:0;color:var(--muted);font-size:.95rem}
.steps li small{display:block;margin-top:.7rem;font-size:.8rem;color:var(--muted);font-weight:500}
.steps.s4{grid-template-columns:repeat(4,1fr)}
@media (max-width:1000px){.steps,.steps.s4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.steps,.steps.s4{grid-template-columns:1fr}}

/* Listes et prose */
.checks{list-style:none;padding:0;margin:0;display:grid;gap:.65rem}
.checks li{padding-left:1.9rem;position:relative;line-height:1.45}
.checks li::before{content:"";position:absolute;left:0;top:.3em;width:1.1rem;height:1.1rem;border-radius:50%;background:var(--accent);
  -webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'><circle cx='10' cy='10' r='10' fill='black'/><path d='M5.5 10.5l3 3 6-6.5' stroke='white' stroke-width='2.2' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>") center/contain no-repeat;
  mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'><circle cx='10' cy='10' r='10' fill='black'/><path d='M5.5 10.5l3 3 6-6.5' stroke='white' stroke-width='2.2' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>") center/contain no-repeat}
.checks.no li::before{background:var(--heat);-webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'><circle cx='10' cy='10' r='10' fill='black'/><path d='M6.5 6.5l7 7M13.5 6.5l-7 7' stroke='white' stroke-width='2.2' stroke-linecap='round'/></svg>") center/contain no-repeat;mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'><circle cx='10' cy='10' r='10' fill='black'/><path d='M6.5 6.5l7 7M13.5 6.5l-7 7' stroke='white' stroke-width='2.2' stroke-linecap='round'/></svg>") center/contain no-repeat}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:start}
.split.wide{grid-template-columns:1.3fr .7fr}
@media (max-width:900px){.split,.split.wide{grid-template-columns:1fr}}
.prose{max-width:66ch;font-size:1.1rem;line-height:1.6}
.prose h2{margin-top:1.6em;font-size:clamp(1.5rem,2.6vw,2rem)}
.prose h3{margin-top:1.4em}
.prose ul{padding-left:1.2rem}
.prose li{margin-bottom:.4rem}
.prose p{color:var(--fg)}
.note{background:var(--bg-2);padding:1.3rem 1.5rem;border-radius:var(--r-sm);color:var(--muted);line-height:1.5}
.note b{color:var(--fg)}
.alt .note{background:var(--card)}

/* Tableaux */
.tbl-wrap{overflow-x:auto;border-radius:var(--r-sm);background:var(--card)}
table{border-collapse:collapse;width:100%;font-size:.98rem}
th,td{padding:.75rem .9rem;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:600;font-size:.85rem;color:var(--muted);text-transform:uppercase;letter-spacing:.02em}
tr:last-child td{border-bottom:0}
td.num,th.num{text-align:right;font-family:var(--font-mono);font-variant-numeric:tabular-nums;white-space:nowrap}

/* Simulateur */
.calc{background:var(--bg-2);border-radius:var(--r);padding:1.8rem;display:grid;gap:1.1rem}
.calc h3{font-size:1.5rem}
.calc .fields{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
@media (max-width:700px){.calc .fields{grid-template-columns:1fr}}
.result{background:var(--dark);color:var(--on-dark);border-radius:var(--r-sm);padding:1.3rem 1.5rem;display:grid;gap:.3rem}
.result .big{font-family:var(--font-display);font-size:clamp(1.8rem,3.5vw,2.6rem);font-weight:600;letter-spacing:-.03em;color:var(--accent-2);font-variant-numeric:tabular-nums}
.result small{color:var(--on-dark-muted)}

/* Formulaires */
label{display:grid;gap:.4rem;font-weight:500;font-size:.92rem;color:var(--muted)}
label span.hint{font-weight:400;font-size:.82rem}
input,select,textarea{font:inherit;color:var(--fg);background:var(--card);border:1px solid var(--line);border-radius:12px;padding:.8rem .9rem;width:100%;min-width:0;transition:border-color .2s,box-shadow .2s}
.alt input,.alt select,.alt textarea{background:var(--card)}
input:focus,select:focus,textarea:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 18%,transparent)}
textarea{min-height:120px;resize:vertical}
.form{background:var(--bg-2);border-radius:var(--r);padding:clamp(1.3rem,3vw,2.2rem);display:grid;gap:1rem}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media (max-width:620px){.form .row{grid-template-columns:1fr}}
.consent{display:flex;gap:.6rem;align-items:flex-start;font-weight:400;font-size:.9rem;color:var(--muted)}
.consent input{width:auto;margin-top:.25rem}
.hp{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}
.form-msg{padding:.9rem 1rem;border-radius:12px;background:var(--card);color:var(--fg)}
.form-msg.ok{color:var(--accent)}
.form-msg.err{color:var(--heat)}

/* Test d'éligibilité */
.elig{background:var(--card);border-radius:var(--r);padding:clamp(1.4rem,3.5vw,2.4rem);display:grid;gap:1.2rem;box-shadow:var(--shadow)}
.elig-head{text-align:center;max-width:40rem;margin:0 auto}
.elig-head h2{font-size:clamp(1.5rem,2.6vw,2rem);margin:0}
.elig-head .kicker{margin-bottom:.5rem}
.elig-fields{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
@media (max-width:760px){.elig-fields{grid-template-columns:1fr}}
.elig-result{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;background:var(--bg-2);border-radius:var(--r-sm);padding:1.1rem 1.3rem}
.elig-result p{margin:0;max-width:70ch;color:var(--muted)}
.elig-result b.ok{color:var(--accent)}
.elig-result b.no{color:var(--heat)}

/* Bandeau d'appel */
.cta-band{background:var(--dark);color:var(--on-dark);text-align:center}
.cta-band .wrap{display:grid;gap:1.6rem;justify-items:center;padding-block:clamp(4rem,8vw,7rem)}
.cta-band h2{color:var(--on-dark);max-width:22ch;font-size:clamp(2rem,4.5vw,3.3rem)}
.cta-band p{color:var(--on-dark-muted);margin:0;max-width:52ch;font-size:1.15rem}
.cta-band .kicker{color:var(--accent-2)}
.cta-band .contact-lines{display:flex;flex-wrap:wrap;gap:.8rem 1.6rem;align-items:center;justify-content:center;font-size:1.05rem}
.cta-band .contact-lines a{color:var(--on-dark);text-decoration:none}
.cta-band .contact-lines a:not(.btn):hover{text-decoration:underline}

/* Engagements, chiffres */
.engage{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.engage div{padding:1.8rem;border-radius:var(--r);background:var(--card);min-width:0}
.sec:not(.alt) .engage div{background:var(--bg-2)}
.engage h3{font-size:1.2rem;margin-bottom:.4rem}
.engage p{color:var(--muted);margin:0;font-size:.98rem}
@media (max-width:900px){.engage{grid-template-columns:1fr 1fr}}
@media (max-width:620px){.engage{grid-template-columns:1fr}}
.figures{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.split .figures{grid-template-columns:repeat(2,1fr)}
.figures div{background:var(--card);border-radius:var(--r-sm);padding:1.4rem;min-width:0}
.sec:not(.alt) .figures div{background:var(--bg-2)}
.figures b{display:block;font-family:var(--font-display);font-size:2.2rem;font-weight:600;letter-spacing:-.03em;color:var(--fg);line-height:1}
.figures span{display:block;margin-top:.5rem;color:var(--muted);font-size:.92rem}
@media (max-width:900px){.figures{grid-template-columns:repeat(2,1fr)}}
@media (max-width:480px){.figures,.split .figures{grid-template-columns:1fr}}

/* Témoignages, FAQ */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.quote{background:var(--card);border-radius:var(--r);padding:1.8rem;min-width:0;display:flex;flex-direction:column;gap:.9rem}
.sec:not(.alt) .quote{background:var(--bg-2)}
.quote p{margin:0;color:var(--fg);font-size:1.05rem;line-height:1.5}
.quote footer{font-size:.9rem;color:var(--muted);font-weight:500}
@media (max-width:900px){.quotes{grid-template-columns:1fr}}
details{border-bottom:1px solid var(--line);padding:0}
summary{cursor:pointer;font-family:var(--font-display);font-weight:600;font-size:1.15rem;letter-spacing:-.01em;padding:1.1rem 0;list-style:none;display:flex;justify-content:space-between;gap:1rem;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-weight:400;font-size:1.5rem;color:var(--muted);flex:none;transition:transform .3s var(--ease)}
details[open] summary::after{transform:rotate(45deg)}
details p{color:var(--muted);padding-bottom:1.2rem;margin:0;font-size:1.05rem;line-height:1.55}

/* En-tête de page interne */
.page-head{padding-block:clamp(3.5rem,7vw,6rem) clamp(2rem,4vw,3rem);text-align:center}
.page-head .wrap{display:grid;justify-items:center}
.page-head h1{max-width:20ch}
.page-head .lead{margin:1rem auto 0;text-align:center;max-width:56ch}
.page-head .actions{justify-content:center}
.page-head .badge{margin-left:.4rem}

/* Apparition au défilement */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .9s var(--ease),transform .9s var(--ease);transition-delay:var(--d,0s)}
.reveal.in,html.no-io .reveal{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

/* Pied de page */
.site-footer{background:var(--bg-2);color:var(--muted);padding-block:3rem 2rem;font-size:.88rem}
.site-footer .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:2rem}
.site-footer h4{font-size:.82rem;color:var(--fg);margin:0 0 .8rem;font-weight:600}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:.45rem}
.site-footer a{color:var(--muted);text-decoration:none}
.site-footer a:hover{color:var(--fg);text-decoration:underline}
.site-footer p{color:var(--muted);margin:0 0 .6rem;max-width:44ch;line-height:1.5}
.site-footer .legal{border-top:1px solid var(--line);margin-top:2rem;padding-top:1.2rem;display:flex;flex-wrap:wrap;gap:.5rem 1.5rem;font-size:.8rem}
.site-footer .logo-f{display:inline-block;margin-bottom:.9rem}
.site-footer .logo-f img{height:40px;width:auto}
@media (max-width:900px){.site-footer .cols{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.site-footer .cols{grid-template-columns:1fr}}
.sector-card p{color:var(--fg);font-size:.98rem}
.sector-card p b{color:var(--fg)}
.sector-card .faq-mini{border-top:1px solid var(--line);padding-top:.7rem;color:var(--muted)}
.sectors-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
@media (max-width:1000px){.sectors-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.sectors-grid{grid-template-columns:1fr}}
.contact-card{display:grid;gap:.6rem}
.contact-card .mono{font-size:1.05rem;color:var(--fg)}
.prose time{font-variant-numeric:tabular-nums}
/* Correctifs : attribut hidden, navigation compacte */
[hidden]{display:none!important}
.nav a,.has-sub>button{white-space:nowrap;font-size:.88rem;padding:.45rem .55rem}
.nav a.btn{padding:.5rem .9rem}
@media (max-width:1180px){.nav a.phone{display:none}}
@media (max-width:1040px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:color-mix(in srgb,var(--bg) 92%,transparent);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--line);padding:.8rem var(--gutter) 1.4rem;max-height:calc(100vh - 56px);overflow:auto}
  .nav.open{display:block}
  .nav ul{flex-direction:column;align-items:stretch;gap:.1rem}
  .nav a,.has-sub>button{padding:.9rem .4rem;font-size:1.15rem;border-radius:0;border-bottom:1px solid color-mix(in srgb,var(--line) 70%,transparent);width:100%;justify-content:space-between;opacity:1;white-space:normal}
  .nav a.btn{margin:.9rem 0 0;border-radius:999px;justify-content:center;padding:.9rem;border-bottom:0}
  .nav a.phone{display:block}
  .sub{position:static;transform:none;display:grid;grid-template-columns:1fr;min-width:0;box-shadow:none;padding:.2rem 0 .8rem .6rem;gap:.6rem;background:none;animation:none}
  .sub a{border-bottom:0;padding:.3rem 0;font-size:1rem;color:var(--muted)}
  .sub .all{border-top:0;padding-top:.2rem}
}
/* Avis Google */
.gstars{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:.5rem;font-size:1.05rem;color:var(--muted)}
.gstars b{color:var(--fg)}
.stars{color:#f5a623;letter-spacing:.05em;font-size:1.2rem;line-height:1}
.quote .stars{font-size:.95rem}
.quote header{display:flex;justify-content:space-between;align-items:center;gap:.6rem;font-size:.85rem;color:var(--muted)}
.quote .tag{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.02em;color:var(--accent)}
.quotes.g3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}

/* Logo Global Environnement : un peu plus grand (texte sur deux lignes) */
.brand img{height:46px}
.site-footer .logo-f img{height:52px}

/* Photos : bandeau sous l'en-tête des pages solutions et articles, galerie « Nos chantiers » de l'accueil */
.photo{margin:0;border-radius:var(--r);overflow:hidden;background:var(--bg-2);box-shadow:var(--shadow)}
.photo picture,.photo img{display:block;width:100%;height:100%}
.photo img{object-fit:cover}
.photo-band{padding:0}
.photo-band .photo{aspect-ratio:21/9;max-height:520px}
.photo-band+.sec{padding-top:clamp(3rem,6vw,5rem)}
@media (max-width:700px){.photo-band .photo{aspect-ratio:4/3;border-radius:18px}}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:clamp(150px,20vw,230px);gap:1rem}
.shot{position:relative;margin:0;min-width:0;border-radius:var(--r);overflow:hidden;background:var(--dark-2)}
.shot a{display:block;height:100%}
.shot picture,.shot img{display:block;width:100%;height:100%}
.shot img{object-fit:cover;transition:transform 1.2s var(--ease)}
.shot:hover img{transform:scale(1.04)}
.shot figcaption{position:absolute;left:12px;bottom:12px;max-width:calc(100% - 24px);font-size:.8rem;font-weight:500;line-height:1.2;color:#1d1d1f;background:rgba(255,255,255,.85);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:999px;padding:.4rem .8rem;pointer-events:none}
.gallery .shot:first-child{grid-column:span 2;grid-row:span 2}
@media (max-width:900px){.gallery{grid-template-columns:1fr 1fr;grid-auto-rows:clamp(140px,26vw,220px)}.gallery .shot:first-child,.gallery .shot:nth-child(6){grid-column:span 2;grid-row:span 2}}
@media (max-width:480px){.gallery{gap:.7rem;grid-auto-rows:clamp(120px,30vw,180px)}.shot{border-radius:18px}.shot figcaption{left:10px;bottom:10px;font-size:.74rem}}