/* ==========================================================
   GTU — Géomètre Topographie Urbain
   Charte : bleu #064595 · vert #02954B · bleu clair #0172BB
            vert clair #7FB944 · marine #043063
   ========================================================== */
:root{
  --blue:#064595; --green:#02954B; --blue-l:#0172BB; --green-l:#7FB944; --navy:#043063; --green-aa:#027a3f;
  --ink:#1c2733; --muted:#4d5a68; --line:#d9dee5; --bg:#fff; --bg-2:#f4f5f7;
  --ff-h:'Montserrat',system-ui,sans-serif; --ff-b:'Open Sans',system-ui,sans-serif;
  --wrap:1180px; --gut:clamp(20px,4vw,48px);
  --ease:cubic-bezier(.22,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:auto;-webkit-text-size-adjust:100%}
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}
.lenis.lenis-stopped{overflow:hidden}
body{margin:0;font:400 1.0625rem/1.65 var(--ff-b);color:var(--ink);background:var(--bg);overflow-x:hidden}
img,svg,canvas{display:block;max-width:100%}
h1,h2,h3,h4{font-family:var(--ff-h);color:var(--blue);margin:0;line-height:1.15;letter-spacing:-.01em}
p{margin:0 0 1rem}
a{color:var(--blue);text-underline-offset:3px}
a:hover{color:var(--blue-l)}
:focus-visible{outline:3px solid var(--blue-l);outline-offset:3px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;background:var(--blue);color:#fff;padding:10px 16px;z-index:200;border-radius:8px}
.skip:focus{top:12px;color:#fff}
.wrap{width:min(100% - 2*var(--gut),var(--wrap));margin-inline:auto}

/* ---------- boutons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.6em;font:700 1.17rem/1 var(--ff-h);
  padding:.95em 1.6em;border-radius:999px;border:2px solid transparent;text-decoration:none;cursor:pointer;
  transition:background .3s,color .3s,border-color .3s,transform .3s var(--ease)}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:var(--blue-l);color:#fff;transform:translateY(-2px)}
.btn-ghost{border-color:rgba(255,255,255,.85);color:#fff;background:rgba(4,48,99,.25);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:#fff;color:var(--blue)}
.btn-lg{padding:1.05em 2em}

/* ---------- en-tête ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);transition:box-shadow .4s}
.site-header.scrolled{box-shadow:0 6px 24px -12px rgba(4,48,99,.25)}
.header-inner{width:min(100% - 2*var(--gut),1320px);margin-inline:auto;display:grid;grid-template-columns:1fr auto 1fr;
  align-items:center;gap:20px;padding:12px 0}
.brand-logo img{height:68px;width:auto;transition:height .4s var(--ease)}
.site-header.scrolled .brand-logo img{height:50px}
.brand-center{text-align:center;text-decoration:none;color:inherit}
.brand-name{display:inline-block;margin:0;font:700 clamp(.95rem,1.5vw,1.3rem)/1.2 var(--ff-h);color:var(--blue);
  border:1.5px solid var(--blue);border-radius:999px;padding:.5em 1.4em;letter-spacing:.01em}
.brand-name span{color:var(--green-aa)}
.brand-slogan{margin:.55rem 0 0;font-size:.82rem;color:var(--muted);letter-spacing:.04em}
.header-cta{justify-self:end;padding:.8em 1.3em}

/* ---------- hero ---------- */
.hero{position:relative;height:calc(100svh - 112px);min-height:560px;max-height:980px;overflow:hidden;background:var(--navy);color:#fff}
.hero-stage,.hero-fallback,.hero-fallback img,#heroCanvas,.hero-shade,.hero-contours{position:absolute;inset:0;width:100%;height:100%}
.hero-fallback img{object-fit:cover;opacity:0;transition:opacity 1.6s ease}
.hero-fallback img.on{opacity:1}
.hero.webgl .hero-fallback{display:none}
.hero-shade{background:linear-gradient(180deg,rgba(4,48,99,.18) 0%,rgba(4,48,99,0) 35%,rgba(4,48,99,.72) 100%),
  linear-gradient(90deg,rgba(4,48,99,.55) 0%,rgba(4,48,99,0) 60%);pointer-events:none}
.hero-contours{pointer-events:none;mix-blend-mode:screen;opacity:.55}
.lite .hero-contours{mix-blend-mode:normal;opacity:.35}
.hero-contours path,.bg-contours path,.footer-contours path{fill:none;stroke-linecap:round;vector-effect:non-scaling-stroke}
.hero-contours path{stroke:var(--green-l);stroke-width:1}
.hero-copy{position:absolute;left:0;right:0;bottom:clamp(70px,12vh,130px);width:min(100% - 2*var(--gut),var(--wrap));margin-inline:auto}
.hero-title{font-weight:800;font-size:clamp(2.3rem,6.2vw,5.4rem);line-height:1.04;color:#fff;margin:.4em 0 1.1em;letter-spacing:-.025em}
.hero-title .line{display:block;overflow:hidden;padding-bottom:.08em}
.hero-title .line>span{display:block}
.eyebrow{display:flex;align-items:center;gap:.7em;font:600 .78rem/1 var(--ff-h);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 1.4rem}
.eyebrow.light{color:#fff}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--green-l)}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px}
.hero-meta{position:absolute;right:var(--gut);bottom:34px;display:flex;align-items:center;gap:28px;font:600 .72rem var(--ff-h);letter-spacing:.18em;text-transform:uppercase}
.hero-dots{list-style:none;display:flex;gap:8px;margin:0;padding:0}
.hero-dots button{width:34px;height:20px;background:none;border:0;padding:0;cursor:pointer;position:relative}
.hero-dots button::after{content:"";position:absolute;left:0;right:0;top:9px;height:2px;background:rgba(255,255,255,.45);transition:background .3s}
.hero-dots button.on::after{background:var(--green-l)}
.scroll-cue{display:flex;align-items:center;gap:12px}
.scroll-cue::after{content:"";width:1px;height:42px;background:linear-gradient(#fff,transparent);animation:cue 2s infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
.ph-note{font:600 .68rem/1.3 var(--ff-h);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:.9rem}
.ph-note.light{position:absolute;left:var(--gut);top:16px;margin:0;color:rgba(255,255,255,.7)}
.ph{background:#fff4c2;color:#5c4700;padding:.05em .45em;border-radius:4px;font-size:.92em}

/* ---------- sections ---------- */
.section{position:relative;padding:clamp(80px,12vw,150px) 0}
.s-presentation{background:var(--bg)}
.s-prestations{background:var(--bg-2);padding-bottom:0}
.s-contact{background:var(--bg)}
.bg-contours{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;opacity:.5}
.bg-contours path{stroke:var(--green-l);stroke-width:1;opacity:.55}
.s-presentation .wrap,.s-prestations .wrap,.s-contact .wrap{position:relative}

.cartouche{display:inline-block;margin:0 0 clamp(40px,6vw,72px);font-size:clamp(1.3rem,2.4vw,1.9rem);font-weight:700}
.cartouche>span{display:inline-block;border:1.5px solid var(--blue);border-radius:10px;padding:.45em 1em;background:#fff}
.cartouche-lg>span{border-radius:12px}
.cartouche-sm{font-size:1.4rem;margin-bottom:24px}
.s-prestations .cartouche{margin-bottom:34px}

.split{display:grid;gap:clamp(32px,6vw,90px);align-items:center}
.split-presentation{grid-template-columns:1.35fr 1fr}
.split-prestations{grid-template-columns:.9fr 1.1fr}
.split-contact{grid-template-columns:1.05fr .95fr;align-items:start}

.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:clamp(24px,3.2vw,44px)}
.card-qui{background:#f8f9fa;box-shadow:0 30px 60px -40px rgba(4,48,99,.35)}
.card h3{font-size:1.6rem;margin-bottom:1.1rem}
.card-qui p{color:#2b3846}
.card-qui strong{color:var(--blue)}
.values{list-style:none;display:flex;flex-wrap:wrap;gap:10px 22px;padding:0;margin:1.4rem 0}
.values li{display:flex;align-items:center;gap:8px;font:600 .95rem var(--ff-h);color:var(--blue)}
.values svg{width:16px;height:16px;fill:var(--green)}
.small{font-size:.92rem;color:var(--muted)}

/* photo circulaire */
.circle-photo{position:relative;margin:0;justify-self:center;width:min(100%,460px)}
.circle-clip{position:relative;aspect-ratio:1;border-radius:50%;overflow:hidden;background:var(--bg-2);will-change:clip-path}
.circle-clip img{width:100%;height:118%;object-fit:cover;object-position:60% 30%;will-change:transform}
.circle-ring{position:absolute;inset:-14px;width:calc(100% + 28px);height:calc(100% + 28px);transform:rotate(-90deg);overflow:visible;pointer-events:none}
.circle-ring circle{fill:none;stroke:var(--green-l);stroke-width:.5}


/* prestations */
.blob-photo{margin:0;position:relative}
.blob-inner{position:relative;aspect-ratio:1/1.04;overflow:hidden;border-radius:46% 54% 50% 50% / 38% 38% 62% 62%;background:#cfd8e3;box-shadow:0 40px 80px -50px rgba(4,48,99,.55)}
.blob-inner img,.blob-inner canvas{position:absolute;left:0;top:-8%;width:100%;height:116%;object-fit:cover}
.blob-inner canvas{z-index:1;opacity:0}
.blob-photo.webgl canvas{opacity:1}
.blob-photo.webgl img{opacity:0}

.cats{display:grid;grid-template-columns:1fr 1fr;gap:26px 34px}
.cat header{display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:12px}
.cat header svg{width:30px;height:30px;flex:none;fill:none;stroke:var(--green);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.cat h3{font-size:1.02rem;flex:1;line-height:1.2}
.cat .n{font:600 .75rem var(--ff-h);color:var(--muted)}
.cat ul{list-style:none;margin:0;padding:0}
.cat li ul.sub{margin:4px 0 6px}
.cat li ul.sub li{padding:2px 0 2px 18px;font-size:.93rem;color:var(--muted);line-height:1.45}
.cat li ul.sub li::before{width:5px;height:5px;border-width:0;background:var(--green-l);top:.78em;left:4px}
.note-bornage{margin:26px 0 0;font-size:.92rem;color:var(--muted)}
.note-bornage sup,.cat li sup{color:var(--green);font-weight:700}
.cat li{position:relative;padding:3px 0 3px 22px;color:var(--ink)}
.cat li::before{content:"";position:absolute;left:3px;top:.82em;width:8px;height:8px;border:2px solid var(--green);border-radius:50%}


/* contact / formulaire */
.form h3{margin-bottom:1.5rem}
.field{margin-bottom:18px}
label{display:block;font:600 .9rem var(--ff-h);color:var(--ink);margin-bottom:7px}
abbr{text-decoration:none;color:#b3261e}
input[type=text],input[type=email],input[type=tel],select,textarea{width:100%;font:400 1rem var(--ff-b);color:var(--ink);
  background:#fff;border:1.5px solid #b9c2cd;border-radius:10px;padding:13px 15px;transition:border-color .25s,box-shadow .25s}
select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--blue) 50%),linear-gradient(135deg,var(--blue) 50%,transparent 50%);
  background-position:calc(100% - 22px) 50%,calc(100% - 16px) 50%;background-size:6px 6px;background-repeat:no-repeat;padding-right:42px}
textarea{resize:vertical;min-height:120px}
::placeholder{color:#6c7783}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue-l);box-shadow:0 0 0 4px rgba(1,114,187,.18)}
.field.invalid input,.field.invalid select{border-color:#b3261e}
.field.valid input:not([type=checkbox]),.field.valid select{border-color:var(--green)}
.err{margin:6px 0 0;font-size:.85rem;color:#b3261e;min-height:0}
.err:empty{display:none}
.field.check{display:grid;grid-template-columns:22px 1fr;gap:0 10px;align-items:start}
.field.check input{width:20px;height:20px;margin:2px 0 0;accent-color:var(--green)}
.field.check label{font:400 .88rem/1.45 var(--ff-b);margin:0;color:var(--muted)}
.field.check .err{grid-column:2}
.form-status{margin:16px 0 0;font-weight:600;color:var(--green)}
.form-status.bad{color:#b3261e}

.map{position:relative;aspect-ratio:16/10;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:var(--bg-2)}
.map iframe{position:absolute;inset:0;width:100%;height:100%;border:0;
  filter:grayscale(1) contrast(.95) brightness(1.04);transition:filter .5s}
.map::after{content:"";position:absolute;inset:0;background:var(--blue);mix-blend-mode:color;opacity:.55;pointer-events:none;transition:opacity .5s}
.map:hover iframe{filter:grayscale(.2)}
.map:hover::after{opacity:.0}
.map-link{position:absolute;right:12px;top:12px;z-index:2;background:#fff;color:var(--blue);font:700 .8rem var(--ff-h);padding:8px 14px;border-radius:999px;text-decoration:none;box-shadow:0 4px 14px -6px rgba(4,48,99,.4)}
.map-link:hover{background:var(--blue);color:#fff}
.map .ph-note{position:absolute;left:12px;bottom:10px;margin:0;z-index:2;background:rgba(255,255,255,.88);padding:3px 8px;border-radius:6px}
.address{margin-top:20px;padding:24px 28px;font-style:normal}
.address h4{font-size:1.1rem;margin-bottom:.6rem}
.address p{margin:.15rem 0;font-style:normal}

/* pages légales */
.legal{max-width:820px;padding:clamp(50px,8vw,100px) 0}
.legal h1{font-size:clamp(2rem,4vw,3rem);margin-bottom:.3em}
.legal .lead{color:var(--muted);margin-bottom:2.5rem}
.legal h2{font-size:1.25rem;margin:2.4rem 0 .8rem;padding-top:1.4rem;border-top:1px solid var(--line)}
.legal h3{font-size:1.05rem;margin:1.5rem 0 .5rem;color:var(--ink)}
.legal ul{padding-left:1.2rem;margin:0 0 1rem}
.legal li{margin-bottom:.4rem}
.legal .back{margin-top:3rem}

/* pied de page */
.site-footer{position:relative;background:var(--navy);color:#e4ecf6;padding:56px 0 40px;text-align:center;overflow:hidden}
.footer-contours{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;opacity:.35}
.footer-contours path{stroke:var(--green-l);stroke-width:1;opacity:.5}
.site-footer .wrap{position:relative}
.site-footer nav{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 18px;margin-bottom:18px}
.site-footer a{color:#fff;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.35)}
.site-footer a:hover{color:var(--green-l);border-color:var(--green-l)}
.copy{font-size:.85rem;color:#b5c5da;margin:0}

/* états initiaux JS (évite le flash) */
.js [data-reveal]{opacity:0;transform:translateY(24px)}
.js .cartouche>span{clip-path:inset(0 100% 0 0)}
.js .cat li,.js .cat header{opacity:0}
.reduced [data-reveal],.reduced .cat li,.reduced .cat header{opacity:1!important;transform:none!important}
.reduced .cartouche>span{clip-path:none!important}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .split-presentation,.split-prestations,.split-contact{grid-template-columns:1fr}
  .circle-photo{width:min(78%,380px)}
  .blob-photo{max-width:480px;margin-inline:auto}
  .hero-meta .coords{display:none}
}
@media (max-width:700px){
  .header-inner{grid-template-columns:auto 1fr auto;gap:10px;padding:8px 0}
  .brand-logo img{height:44px}
  .brand-slogan{display:none}
  .brand-name{font-size:.68rem;padding:.4em .8em;border-radius:12px}
  .header-cta{font-size:.9rem;padding:.7em 1em;background:var(--green-aa)}
  .header-cta:hover{background:var(--blue-l)}
  .hero{height:calc(100svh - 62px);min-height:520px}
  .hero-meta{display:none}
  .cats{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  .scroll-cue::after{animation:none}
  .btn{transition:none}
}

/* bandeau de consentement */
.consent{position:fixed;left:16px;right:16px;bottom:16px;z-index:300;max-width:620px;margin-inline:auto;background:#fff;color:var(--ink);
  border:1.5px solid var(--blue);border-radius:16px;padding:20px 22px;box-shadow:0 20px 50px -20px rgba(4,48,99,.5)}
.consent-title{font:700 1.05rem var(--ff-h);color:var(--blue);margin:0 0 6px}
.consent-text{font-size:.95rem;margin:0 0 14px;color:var(--muted)}
.consent-actions{display:flex;gap:10px;flex-wrap:wrap}
.consent-btn{flex:1 1 140px;font-size:1.05rem;padding:.8em 1.2em}
.consent-accept{background:var(--green-aa)}
.consent-accept:hover{background:var(--blue-l)}
.consent-refuse{background:#fff;color:var(--blue);border-color:var(--blue)}
.consent-refuse:hover{background:var(--blue);color:#fff}
.link-btn{background:none;border:0;padding:0;font:inherit;color:#fff;cursor:pointer;border-bottom:1px solid rgba(255,255,255,.35)}
.link-btn:hover{color:var(--green-l);border-color:var(--green-l)}

/* page 404 */
.notfound{min-height:60vh;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding:clamp(60px,10vw,120px) 0}
.nf-code{font:800 clamp(5rem,16vw,11rem)/1 var(--ff-h);color:var(--green-l);margin:0 0 .1em;letter-spacing:-.04em}
.notfound h1{font-size:clamp(1.8rem,4vw,2.8rem);margin-bottom:.5em}
.notfound .lead{color:var(--muted);max-width:46ch;margin-bottom:2rem}
.nf-actions{display:flex;flex-wrap:wrap;gap:12px}
.btn-ghost-dark{border-color:var(--blue);color:var(--blue);background:#fff}
.btn-ghost-dark:hover{background:var(--blue);color:#fff}