:root{
  --ink:#0a3d56;
  --ink-2:#145c75;
  --blue:#087faa;
  --cyan:#1caed2;
  --aqua:#14a99f;
  --paper:#f4f8f9;
  --white:#ffffff;
  --line:#c8dce2;
  --line-dark:#8eb4c0;
  --muted:#58727d;
  --max:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,"Helvetica Neue",sans-serif;background:var(--white);color:#183f4f;line-height:1.62}
a{color:inherit}
img{max-width:100%;display:block}
.container{width:min(var(--max),calc(100% - 44px));margin-inline:auto}

.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.brand img{width:48px;height:48px;object-fit:contain}
.brand span{font-size:1.04rem}
.nav{display:flex;align-items:center;gap:2px}
.nav a{padding:10px 13px;text-decoration:none;font-weight:600;color:#315b6c;border-bottom:2px solid transparent}
.nav a:hover,.nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--aqua)}
.nav .nav-cta{margin-left:8px;background:var(--ink);color:#fff;border-bottom-color:var(--ink)}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;padding:9px 12px;font-size:1rem;color:var(--ink)}

.hero{background:#f5fafb;border-bottom:1px solid var(--line)}
.hero-grid{min-height:650px;display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:70px;padding:64px 0}
.eyebrow{margin:0;color:#137f7a;font-weight:700;font-size:.91rem;letter-spacing:.03em;text-transform:uppercase}
.hero h1,.page-hero h1{color:var(--ink);font-size:clamp(2.8rem,6.2vw,5.1rem);line-height:1.01;letter-spacing:-.045em;margin:18px 0 24px}
.hero h1 span{color:var(--aqua)}
.hero .lead,.page-hero .lead{font-size:1.16rem;max-width:760px;color:#496873}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 18px;text-decoration:none;font-weight:700;border:1px solid var(--ink);transition:.15s ease;border-radius:0}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:#063246}
.btn-secondary{background:#fff;color:var(--ink);border-color:var(--line-dark)}
.phone-panel{margin-top:36px;padding-top:18px;border-top:1px solid var(--line-dark);max-width:520px;display:flex;align-items:baseline;justify-content:space-between;gap:18px}
.phone-panel span{color:var(--muted);font-size:.92rem}
.phone-panel strong{font-size:1.55rem;color:var(--ink);white-space:nowrap}
.hero-logo{padding:10px 0}
.hero-logo img{margin:auto;max-height:520px;object-fit:contain}

.section{padding:84px 0}
.section-alt{background:var(--paper);border-top:1px solid #e0eaed;border-bottom:1px solid #e0eaed}
.section-head{max-width:780px;margin-bottom:34px}
.kicker{font-size:.82rem;text-transform:uppercase;letter-spacing:.13em;color:var(--aqua);font-weight:700}
.section h2{font-size:clamp(2rem,4vw,3.05rem);line-height:1.1;letter-spacing:-.032em;color:var(--ink);margin:10px 0 18px}
.section-head p{color:var(--muted);font-size:1.04rem}

.method-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:start}
.method-list{border-top:1px solid var(--line-dark)}
.method-row{display:grid;grid-template-columns:210px 1fr;gap:28px;padding:24px 0;border-bottom:1px solid var(--line)}
.method-row h3{margin:0;color:var(--ink);font-size:1.15rem}
.method-row p{margin:0;color:#526f7a}

.tech-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:58px;align-items:center}
.tech-figure{border-left:1px solid var(--line-dark);padding-left:40px}
.tech-figure img{background:#fff}
.note{margin-top:24px;padding:16px 0 16px 18px;border-left:3px solid var(--aqua);color:#3e626d}

.cta-band{background:var(--ink);color:#fff;padding:46px 0}
.cta-grid{display:flex;align-items:center;justify-content:space-between;gap:30px}
.cta-band h2{margin:0 0 7px;font-size:clamp(1.8rem,3.5vw,2.7rem);letter-spacing:-.03em}
.cta-band p{margin:0;color:#cfe2e8}
.cta-band .btn{background:#fff;color:var(--ink);border-color:#fff;white-space:nowrap}

.site-footer{background:#062d3f;color:#c8dde4;padding:42px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:32px}
.site-footer strong{color:#fff}
.site-footer a{text-decoration:none;color:#d8ebef}
.site-footer a:hover{text-decoration:underline}
.footer-small{border-top:1px solid rgba(255,255,255,.13);margin-top:30px;padding-top:17px;font-size:.87rem;color:#96b8c3;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}

.page-hero{background:#f4f8f9;padding:76px 0 64px;border-bottom:1px solid var(--line)}
.page-hero h1{font-size:clamp(2.8rem,5.7vw,4.6rem);margin-bottom:18px}
.profile-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:56px;align-items:start}
.profile-photo{margin:0;border:1px solid var(--line);background:#f7fbfc}
.profile-photo figcaption{padding:11px 14px;font-size:.82rem;color:#6a828c;background:#fff;border-top:1px solid var(--line)}
.profile-copy h2{margin-top:0}
.profile-copy .big{font-size:1.17rem;color:#456672}
.plain-points{margin-top:28px;border-top:1px solid var(--line-dark)}
.plain-points p{margin:0;padding:14px 0;border-bottom:1px solid var(--line);color:#536f79}
.plain-points strong{color:var(--ink)}

.contact-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:42px;align-items:start}
.contact-card{background:var(--ink);color:#fff;padding:30px;position:sticky;top:104px;border-left:5px solid var(--aqua)}
.contact-card h2{color:#fff;margin-top:0}
.contact-card p{color:#d4e7eb}
.contact-list{display:grid;gap:18px;margin-top:28px}
.contact-item{padding-top:15px;border-top:1px solid rgba(255,255,255,.18)}
.contact-item small{display:block;color:#a9ccd4}
.contact-item strong{display:block;font-size:1.18rem}
.form-card{border-top:3px solid var(--ink);padding:30px 0 0;background:#fff}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.field{display:grid;gap:7px}.field.full{grid-column:1/-1}
label{font-weight:700;color:#234f61;font-size:.94rem}
input,textarea,select{width:100%;font:inherit;padding:12px 13px;border:1px solid #b8d0d7;border-radius:0;background:#fff;color:#173f50;outline:none}
input:focus,textarea:focus,select:focus{border-color:#188e96;box-shadow:0 0 0 2px rgba(24,142,150,.10)}
textarea{min-height:170px;resize:vertical}
.checkbox{display:flex;gap:10px;align-items:flex-start}.checkbox input{width:auto;margin-top:5px}
.alert{padding:13px 15px;margin-bottom:20px;border-left:4px solid}.alert-ok{background:#eef8f2;color:#23694d;border-color:#4c9b72}.alert-error{background:#fff3f3;color:#8a3535;border-color:#b34c4c}
.honeypot{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}
.legal{font-size:.9rem;color:#6a858f;margin-top:14px}

@media(max-width:920px){
  .menu-toggle{display:block}.nav{display:none;position:absolute;left:20px;right:20px;top:74px;flex-direction:column;align-items:stretch;background:#fff;border:1px solid var(--line);padding:10px}.nav.open{display:flex}.nav a{border-bottom:1px solid #e5eef1}.nav .nav-cta{margin-left:0}
  .hero-grid,.method-layout,.tech-grid,.profile-grid,.contact-layout{grid-template-columns:1fr}
  .hero-grid{padding-top:46px;gap:35px}.hero-logo{max-width:620px;margin:auto}
  .tech-figure{border-left:0;border-top:1px solid var(--line-dark);padding-left:0;padding-top:32px}
  .footer-grid{grid-template-columns:1fr 1fr}.contact-card{position:static}.hero h1{font-size:clamp(3rem,11vw,4.8rem)}
}
@media(max-width:620px){
  .container{width:min(100% - 28px,var(--max))}.header-inner{min-height:68px}.brand span{font-size:.97rem}.brand img{width:44px;height:44px}
  .hero-grid{min-height:auto;padding:48px 0}.section{padding:66px 0}.method-row{grid-template-columns:1fr;gap:8px;padding:20px 0}.cta-grid{align-items:flex-start;flex-direction:column}.phone-panel{align-items:flex-start;flex-direction:column;gap:3px}.phone-panel strong{font-size:1.28rem}.page-hero{padding:60px 0 50px}.form-grid,.footer-grid{grid-template-columns:1fr}.contact-card{padding:25px}
}

/* Terrain et outils traditionnels */
.tradition-section{border-top:1px solid #e2ecef}
.tradition-layout{display:grid;grid-template-columns:1fr .82fr;gap:68px;align-items:start}
.tradition-copy h2{font-size:clamp(2rem,4vw,3.05rem);line-height:1.1;letter-spacing:-.032em;color:var(--ink);margin:10px 0 18px}
.tradition-copy>p{color:var(--muted);font-size:1.04rem}
.tool-lines{margin-top:30px;border-top:1px solid var(--line-dark)}
.tool-line{display:grid;grid-template-columns:190px 1fr;gap:24px;padding:17px 0;border-bottom:1px solid var(--line)}
.tool-line strong{color:var(--ink)}
.tool-line span{color:#526f7a}
.field-photo,.field-video{margin:0}
.field-photo img{width:100%;object-fit:cover}
.field-photo-main img{height:640px;object-position:center center}
.field-photo figcaption,.field-video figcaption{padding-top:9px;font-size:.86rem;color:#607b85}
.photo-pair{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:54px}
.photo-pair .field-photo img{height:470px;object-position:center 42%}
.practice-videos{margin-top:70px;padding-top:34px;border-top:1px solid var(--line-dark)}
.practice-video-head{display:flex;align-items:baseline;gap:18px;margin-bottom:24px}
.practice-video-head h3{margin:0;color:var(--ink);font-size:1.55rem;letter-spacing:-.02em}
.video-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;max-width:900px}
.field-video video{display:block;width:100%;aspect-ratio:9/16;object-fit:cover;background:#062d3f}
.required-note{margin:0 0 17px;color:var(--muted);font-size:.9rem}
.phone-panel a,.site-footer a[href^="tel:"],.contact-item a[href^="tel:"]{text-decoration:none}

/* Le contact reste volontairement sobre : pas de carte flottante. */
.contact-card{background:transparent;color:#183f4f;padding:0 0 0 24px;border-left:3px solid var(--aqua)}
.contact-card h2{color:var(--ink)}
.contact-card p{color:var(--muted)}
.contact-item{border-top:1px solid var(--line)}
.contact-item small{color:#6c858e}
.contact-item strong{color:var(--ink)}

@media(max-width:920px){
  .tradition-layout{grid-template-columns:1fr;gap:38px}
  .field-photo-main img{height:auto;max-height:760px;object-fit:contain;background:#f4f8f9}
  .photo-pair .field-photo img{height:420px}
  .video-grid{max-width:none}
}
@media(max-width:620px){
  .tool-line{grid-template-columns:1fr;gap:4px}
  .photo-pair,.video-grid{grid-template-columns:1fr}
  .photo-pair .field-photo img{height:auto}
  .practice-video-head{display:block}
  .practice-video-head h3{margin-top:8px}
  .field-video video{max-height:74vh;object-fit:contain}
}