/* MP CONCEPT — feuille de style principale */
:root{
  --ink:#10233b;
  --ink-2:#1b3556;
  --sky:#77b5fe;
  --sky-deep:#3d8de8;
  --sky-soft:#e8f2ff;
  --concrete:#8c96a3;
  --line:#d8dee6;
  --mist:#f3f6f9;
  --paper:#ffffff;
  --text:#1c2633;
  --muted:#5a6676;
  --orange:#e45d18;
  --orange-dark:#c44c10;
  --display:"Big Shoulders Display", "Arial Narrow", Arial, sans-serif;
  --body:"Archivo", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --wrap:1180px;
  --gutter:clamp(16px,4vw,40px);
  --radius:6px;
  --hex:polygon(25% 0,75% 0,100% 50%,75% 100%,25% 100%,0 50%);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--body);font-size:1.0625rem;line-height:1.65;color:var(--text);background:var(--paper);overflow-x:hidden}
img,video{max-width:100%;height:auto;display:block}
a{color:var(--sky-deep)}
a:hover{color:var(--ink)}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px;border-radius:2px}
h1,h2,h3,h4{font-family:var(--display);font-weight:800;line-height:1.02;color:var(--ink);margin:0 0 .5em;letter-spacing:.005em}
h1{font-size:clamp(2.9rem,7.4vw,5.6rem)}
h2{font-size:clamp(2.2rem,4.6vw,3.4rem)}
h3{font-size:clamp(1.5rem,2.4vw,1.9rem)}
p{margin:0 0 1em}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.lead{font-size:clamp(1.1rem,1.6vw,1.25rem);color:var(--muted);max-width:62ch}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.6em 1em;z-index:100}
.skip:focus{left:8px;top:8px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55em;font:600 1rem/1 var(--body);padding:1em 1.5em;border-radius:var(--radius);text-decoration:none;border:2px solid transparent;cursor:pointer;transition:background-color .2s,color .2s,border-color .2s}
.btn svg{width:1.2em;height:1.2em;flex:none}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-dark);color:#fff}
.btn-ghost{border-color:rgba(255,255,255,.75);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--ink)}
.btn-line{border-color:var(--ink);color:var(--ink)}
.btn-line:hover{background:var(--ink);color:#fff}
.btn-wa{background:#1fa855;color:#fff}
.btn-wa:hover{background:#178a45;color:#fff}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* En-tête */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);transition:box-shadow .2s}
.site-header.scrolled{box-shadow:0 6px 24px rgba(16,35,59,.08)}
.header-in{display:flex;align-items:center;justify-content:space-between;gap:20px;height:78px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand img{width:64px;height:auto}
.brand span{font:800 1.7rem/1 var(--display);letter-spacing:.03em}
@media (max-width:380px){.brand span{font-size:1.4rem}}
.nav ul{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:6px}
.nav a{display:block;padding:.6em .85em;text-decoration:none;color:var(--text);font-weight:500;border-radius:var(--radius)}
.nav a:hover{color:var(--sky-deep)}
.nav a[aria-current="page"]{color:var(--ink);font-weight:700;box-shadow:inset 0 -3px 0 var(--sky)}
.nav .btn{margin-left:10px;padding:.8em 1.2em;color:#fff}
.nav-toggle{display:none;background:none;border:0;padding:10px;cursor:pointer;color:var(--ink)}
.nav-toggle svg{width:28px;height:28px}
@media (max-width:940px){
  .nav-toggle{display:block}
  .nav{position:fixed;inset:78px 0 0 0;background:#fff;padding:24px var(--gutter);transform:translateX(100%);transition:transform .25s ease;visibility:hidden;overflow-y:auto}
  .nav.open{transform:none;visibility:visible}
  .nav ul{flex-direction:column;align-items:stretch;gap:0}
  .nav li{border-bottom:1px solid var(--line)}
  .nav a{padding:1em .2em;font-size:1.15rem}
  .nav li:last-child{border:0;margin-top:18px}
  .nav .btn{margin:0;width:100%;padding:1em}
  .brand img{width:52px}
}

/* Héros accueil */
.hero{position:relative;color:#fff;background:var(--ink);overflow:hidden}
.hero picture,.hero picture img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,35,59,.92) 0%,rgba(16,35,59,.72) 45%,rgba(16,35,59,.25) 100%)}
.hero-in{position:relative;z-index:1;padding-top:clamp(80px,13vw,150px);padding-bottom:clamp(60px,9vw,110px)}
.hero h1{color:#fff;max-width:11ch;margin-bottom:.3em}
.hero h1 .outline{display:block;color:transparent;-webkit-text-stroke:2px var(--sky)}
@supports not (-webkit-text-stroke:2px #000){.hero h1 .outline{color:var(--sky)}}
.hero p{font-size:clamp(1.1rem,1.8vw,1.3rem);max-width:46ch;color:#dbe7f5;margin-bottom:1.8em}
.hero-mark{position:absolute;right:max(var(--gutter),calc((100vw - var(--wrap))/2 + var(--gutter)));bottom:clamp(40px,8vw,90px);z-index:1;width:clamp(150px,20vw,240px);filter:drop-shadow(0 12px 30px rgba(0,0,0,.35))}
@media (max-width:760px){.hero-mark{display:none}}

/* Bandeau chiffres */
.facts{background:var(--sky-soft);border-bottom:1px solid var(--line)}
.facts dl{display:grid;grid-template-columns:repeat(3,1fr);margin:0}
.facts dl>div{padding:26px 20px;border-left:1px solid #c9dcf3}
.facts dl>div:first-child{border-left:0;padding-left:0}
.facts dt{font:800 clamp(2.2rem,4vw,3rem)/1 var(--display);color:var(--ink)}
.facts dd{margin:.3em 0 0;color:var(--muted);font-size:.98rem}
@media (max-width:640px){.facts dl{grid-template-columns:1fr}.facts dl>div{border-left:0;border-top:1px solid #c9dcf3;padding:18px 0}.facts dl>div:first-child{border-top:0}}

/* Sections */
.section{padding:clamp(64px,9vw,112px) 0}
.section-mist{background:var(--mist)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px 40px;margin-bottom:clamp(32px,5vw,52px)}
.section-head h2{margin:0}
.section-head p{margin:0;max-width:52ch;color:var(--muted)}

/* Expertises : images hexagonales, motif du logo */
.expertises{display:grid;grid-template-columns:repeat(5,1fr);gap:clamp(18px,2.6vw,32px)}
.exp{text-decoration:none;color:var(--text);display:flex;flex-direction:column}
.exp-hex{position:relative;aspect-ratio:1.155/1;background:var(--line);clip-path:var(--hex);padding:5px;margin-bottom:18px;transition:background-color .2s}
.exp-hex img{width:100%;height:100%;object-fit:cover;clip-path:var(--hex)}
.exp:hover .exp-hex,.exp:focus-visible .exp-hex{background:var(--sky)}
.exp h3{font-size:1.55rem;margin-bottom:.3em}
.exp p{color:var(--muted);font-size:.98rem;margin:0}
@media (max-width:1040px){.expertises{grid-template-columns:repeat(3,1fr)}}
@media (max-width:640px){.expertises{grid-template-columns:repeat(2,1fr)}.exp h3{font-size:1.3rem}.exp p{font-size:.92rem}}

/* Méthode (séquence réelle) */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);counter-reset:step;border-top:2px solid var(--ink)}
.steps li{counter-increment:step;padding:26px 24px 8px 0}
.steps li::before{content:counter(step);display:block;font:800 3.4rem/1 var(--display);color:var(--sky);margin-bottom:12px}
.steps h3{font-size:1.7rem;margin-bottom:.35em}
.steps p{color:var(--muted);margin:0;font-size:.98rem}
.dark .steps{border-color:var(--sky)}
@media (max-width:860px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.steps{grid-template-columns:1fr}.steps li{padding-right:0}}

/* Sections sombres façon plan */
.dark{background-color:var(--ink);color:#d7e3f2;background-image:linear-gradient(rgba(119,181,254,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(119,181,254,.07) 1px,transparent 1px);background-size:32px 32px}
.dark h2,.dark h3{color:#fff}
.dark .section-head p,.dark .steps p{color:#a9bdd6}

/* Bloc texte + image */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,6vw,80px);align-items:center}
.split.rev{grid-template-columns:.95fr 1.05fr}
.split.rev .split-media{order:-1}
.split-media{position:relative}
.split-media img{width:100%;aspect-ratio:4/3.4;object-fit:cover;border-radius:var(--radius)}
.split-media::before{content:"";position:absolute;inset:-14px 14px 14px -14px;border:2px solid var(--sky);border-radius:var(--radius);z-index:-1}
.split.rev .split-media::before{inset:-14px -14px 14px 14px}
.split-media{z-index:0}
@media (max-width:860px){.split,.split.rev{grid-template-columns:1fr}.split.rev .split-media{order:0}.split-media::before{display:none}}

/* Galerie */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.gallery a,.gallery button{display:block;position:relative;overflow:hidden;border-radius:4px;background:var(--line);aspect-ratio:1;border:0;padding:0;cursor:zoom-in;width:100%}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.gallery a:hover img,.gallery button:hover img{transform:scale(1.05)}
.gallery .wide{grid-column:span 2;grid-row:span 2}
@media (max-width:860px){.gallery{grid-template-columns:repeat(3,1fr)}.gallery .wide{grid-column:span 2;grid-row:span 2}}
@media (max-width:520px){.gallery{grid-template-columns:repeat(2,1fr);gap:8px}}
.gallery [hidden]{display:none}

.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.filters button{font:500 .98rem/1 var(--body);padding:.75em 1.15em;border:1.5px solid var(--line);background:#fff;color:var(--text);border-radius:999px;cursor:pointer}
.filters button:hover{border-color:var(--sky-deep)}
.filters button[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.count{color:var(--muted);font-size:.95rem;margin:-12px 0 20px}

/* Visionneuse */
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(10,20,34,.94);display:none;align-items:center;justify-content:center;padding:60px 70px}
.lightbox.open{display:flex}
.lightbox figure{margin:0;max-width:min(92vw,900px);text-align:center}
.lightbox img{max-height:78vh;width:auto;margin:0 auto;border-radius:4px}
.lightbox figcaption{color:#cfdcec;margin-top:14px;font-size:.98rem}
.lb-btn{position:absolute;background:rgba(255,255,255,.1);border:0;color:#fff;width:52px;height:52px;border-radius:50%;cursor:pointer;display:grid;place-items:center}
.lb-btn:hover{background:rgba(255,255,255,.22)}
.lb-btn svg{width:26px;height:26px}
.lb-close{top:16px;right:16px}
.lb-prev{left:14px;top:50%;transform:translateY(-50%)}
.lb-next{right:14px;top:50%;transform:translateY(-50%)}
@media (max-width:640px){.lightbox{padding:70px 10px}.lb-prev,.lb-next{top:auto;bottom:16px;transform:none}.lb-prev{left:calc(50% - 64px)}.lb-next{right:calc(50% - 64px)}}

/* Vidéo */
.video-block{display:grid;grid-template-columns:1.3fr 1fr;gap:clamp(24px,5vw,60px);align-items:center}
.video-block video{width:100%;border-radius:var(--radius);background:#000;aspect-ratio:16/9}
@media (max-width:860px){.video-block{grid-template-columns:1fr}}

/* Appel à l'action */
.cta{position:relative;color:#fff;overflow:hidden;background:var(--ink)}
.cta>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.22}
.cta-in{position:relative;padding-top:clamp(70px,10vw,120px);padding-bottom:clamp(70px,10vw,120px);display:grid;grid-template-columns:1.2fr 1fr;gap:30px;align-items:end}
.cta h2{color:#fff;margin:0}
.cta p{color:#d2deec;margin:0 0 22px}
@media (max-width:860px){.cta-in{grid-template-columns:1fr}}

/* En-tête de page intérieure */
.page-hero{padding:clamp(56px,8vw,96px) 0 clamp(44px,6vw,72px)}
.page-hero h1{color:#fff;font-size:clamp(2.8rem,6.5vw,4.8rem);margin-bottom:.2em}
.page-hero p{color:#b9cbe0;font-size:1.15rem;max-width:56ch;margin:0}
.crumbs{font-size:.92rem;margin-bottom:18px;color:#a9bdd6}
.crumbs a{color:#cfe2fb;text-decoration:none}
.crumbs a:hover{color:#fff;text-decoration:underline}

/* Détail services */
.svc{padding:clamp(56px,8vw,96px) 0;border-bottom:1px solid var(--line)}
.svc:nth-of-type(even){background:var(--mist)}
.svc h2{font-size:clamp(2.1rem,4vw,3rem)}
.ticks{list-style:none;padding:0;margin:0 0 26px;display:grid;gap:10px}
.ticks li{position:relative;padding-left:30px}
.ticks li::before{content:"";position:absolute;left:0;top:.42em;width:16px;height:14px;background:var(--sky);clip-path:var(--hex)}
.svc-nav{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px}
.svc-nav a{color:#fff;text-decoration:none;border:1.5px solid rgba(119,181,254,.5);padding:.55em 1em;border-radius:999px;font-size:.95rem}
.svc-nav a:hover{background:var(--sky);border-color:var(--sky);color:var(--ink)}

/* Valeurs */
.values{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid var(--line)}
.values div{padding:28px 32px 28px 0;border-bottom:1px solid var(--line)}
.values div:nth-child(odd){border-right:1px solid var(--line)}
.values div:nth-child(even){padding-left:32px}
.values h3{font-size:1.65rem}
.values p{color:var(--muted);margin:0}
@media (max-width:700px){.values{grid-template-columns:1fr}.values div,.values div:nth-child(even){padding:24px 0;border-right:0}}

.world{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px;list-style:none;padding:0}
.world li{background:var(--sky-soft);color:var(--ink);padding:.5em 1em;border-radius:999px;font-weight:500}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1.35fr .9fr;gap:clamp(32px,5vw,64px);align-items:start}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr}}
.form{display:grid;grid-template-columns:1fr 1fr;gap:18px 20px}
.form .full{grid-column:1/-1}
@media (max-width:600px){.form{grid-template-columns:1fr}}
.field label{display:block;font-weight:600;margin-bottom:6px;font-size:.98rem}
.field label small{font-weight:400;color:var(--muted)}
.field input,.field select,.field textarea{width:100%;font:inherit;font-size:1rem;padding:.8em .9em;border:1.5px solid var(--line);border-radius:var(--radius);background:#fff;color:var(--text)}
.field textarea{min-height:150px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--sky-deep);box-shadow:0 0 0 3px rgba(61,141,232,.2)}
.field .err{display:none;color:#b42318;font-size:.9rem;margin-top:5px}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:#b42318}
.field.invalid .err{display:block}
.hp{position:absolute;left:-5000px}
.form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.form-status{grid-column:1/-1;padding:14px 16px;border-radius:var(--radius);display:none}
.form-status.ok{display:block;background:#e7f6ec;color:#14532d;border:1px solid #a7dbb8}
.form-status.ko{display:block;background:#fdecea;color:#7a1c12;border:1px solid #f3b7ae}
.quick{background:var(--ink);color:#d7e3f2;border-radius:var(--radius);padding:clamp(24px,3vw,36px)}
.quick h2{color:#fff;font-size:2.2rem}
.quick ul{list-style:none;padding:0;margin:0 0 24px}
.quick li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.quick li:last-child{border:0}
.quick svg{width:24px;height:24px;flex:none;color:var(--sky);margin-top:3px}
.quick strong{display:block;color:#fff;font-weight:600}
.quick a{color:#cfe2fb;word-break:break-word}
.quick a:hover{color:#fff}
.quick .btn{width:100%}

/* Pied de page */
.site-footer{background:#0b1a2d;color:#a9bdd6;padding:64px 0 28px;font-size:.98rem}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.site-footer h2{font-size:1.5rem;color:#fff;margin-bottom:.7em}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.site-footer a{color:#cfe2fb;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.foot-brand img{width:84px;margin-bottom:14px}
.foot-bottom{margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:.9rem}
@media (max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}.foot-brand{grid-column:1/-1}}
@media (max-width:520px){.foot-grid{grid-template-columns:1fr}}

/* WhatsApp flottant + retour haut */
.wa-float{position:fixed;right:18px;bottom:18px;z-index:60;width:58px;height:58px;border-radius:50%;background:#1fa855;color:#fff;display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.wa-float:hover{background:#178a45;color:#fff}
.wa-float svg{width:32px;height:32px}
.to-top{position:fixed;right:26px;bottom:90px;z-index:60;width:42px;height:42px;border-radius:50%;border:0;background:var(--ink);color:#fff;display:grid;place-items:center;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .2s}
.to-top.show{opacity:1;pointer-events:auto}
.to-top svg{width:20px;height:20px}

.center{text-align:center}
.mt{margin-top:36px}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}