:root{--ink:#1c2b3a;--muted:#566474;--green:#456f39;--green-dark:#38612e;--green-pale:#e3ebe1;--rule:#dbe1e5;--orange:#e8941a;font-family:Inter,"Segoe UI",Arial,sans-serif;color:var(--ink);background:#fff;scroll-behavior:smooth}
*{box-sizing:border-box}body{margin:0}img{display:block;max-width:100%}a{color:inherit}h1,h2,h3,p,figure{margin-top:0}svg{display:block}.skip-link{position:absolute;top:-70px;left:10px;z-index:20;padding:12px;background:#fff}.skip-link:focus{top:10px}:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
.site-header{height:78px;padding:0 clamp(24px,3vw,56px);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:28px;background:#fff;border-bottom:1px solid var(--rule)}.brand{width:112px;align-self:center}.brand img{width:100%;height:auto}.main-nav{display:flex;gap:clamp(20px,3.6vw,60px);align-items:center;white-space:nowrap;font-weight:700}.main-nav a,.site-footer a{text-decoration:none}.main-nav a:hover,.site-footer a:hover{text-decoration:underline;text-underline-offset:5px}.button{display:inline-flex;align-items:center;justify-content:center;gap:13px;padding:14px 18px;min-height:48px;border-radius:6px;background:var(--green);color:#fff;text-decoration:none;font-size:15px;font-weight:700;white-space:nowrap;transition:background .2s ease,transform .2s ease}.button:hover{background:var(--green-dark);transform:translateY(-2px)}.button svg,.contact-email svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linejoin:round;stroke-linecap:round}.button-header{justify-self:end}
.hero{display:grid;grid-template-columns:46.4% 53.6%;min-height:min(540px,46vw)}.hero-copy{min-width:0;padding:clamp(48px,8.8vw,110px) clamp(24px,3.1vw,48px) 28px clamp(24px,3vw,56px);display:flex;flex-direction:column;align-items:flex-start}.eyebrow{display:flex;align-items:center;gap:12px;color:var(--green);font-size:13px;font-weight:800;letter-spacing:.025em;text-transform:uppercase}.line{display:inline-block;width:40px;height:2px;background:var(--green);flex:none}.hero h1{margin:23px 0 18px;font-size:clamp(37px,4.55vw,65px);letter-spacing:-.043em;line-height:1.07;font-weight:800;white-space:nowrap}.hero h1 span{color:var(--green)}.hero-lead{font-size:clamp(18px,1.85vw,23px);line-height:1.4;color:var(--muted);max-width:430px;margin-bottom:29px}.hero-actions{display:flex;gap:11px;flex-wrap:wrap}.hero-actions .button{font-size:14px}.hero-actions .button span{font-size:23px;line-height:10px;font-weight:400}.button-outline{border:1px solid #c8d2db;background:#fff;color:var(--ink)}.button-outline:hover{background:#f1f5f1}.origin{display:flex;align-items:center;gap:10px;font-size:14px;margin:31px 0 0;color:#394757;margin-top:auto;padding-top:30px}.flag{display:inline-block;width:29px;height:17px;background:linear-gradient(90deg,#142f91 0 33.3%,#fff 33.3% 66.6%,#e82f3b 66.6%)}.hero-photo{min-height:480px;overflow:hidden}.hero-photo img{width:100%;height:100%;object-fit:cover;object-position:50% 50%}
.section-container{max-width:1440px;margin:auto;padding:32px clamp(24px,3vw,56px) 37px}.section-heading{display:flex;align-items:flex-start;gap:19px}.section-heading>.line{margin-top:17px}.section-heading h2{font-size:clamp(27px,3vw,36px);letter-spacing:-.035em;margin-bottom:5px;line-height:1.13}.section-heading p{font-size:19px;color:var(--muted);margin-bottom:0}.steps{display:grid;grid-template-columns:minmax(0,1fr) 36px minmax(0,1fr) 36px minmax(0,1fr);align-items:center;gap:clamp(8px,1.5vw,25px);padding:18px 5px 0}.step{min-width:0}.step-illustration{height:137px;display:flex;align-items:center;justify-content:center}.step-illustration svg{height:100%;width:100%;max-width:330px}.stroke{fill:none;stroke:#8393a1;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.faint{stroke:#b9c5ce}.green-line{fill:none;stroke:var(--green);stroke-width:4}.orange-line{fill:none;stroke:var(--orange);stroke-width:4;stroke-linecap:round}.step-arrow{font-size:34px;color:#68788b;align-self:center;text-align:center;margin-top:-26px;font-weight:300}.step-description{display:flex;gap:13px;align-items:flex-start;margin:12px auto 0;max-width:310px}.step-number{flex:none;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--green-pale);color:var(--green);font-size:19px;font-weight:800}.step h3{font-size:16px;line-height:1.3;margin:2px 0 3px}.step p{font-size:13px;line-height:1.35;color:var(--muted);margin:0}
.example{display:grid;grid-template-columns:53% 47%;min-height:330px;background:#fbfcfa}.example-photo{position:relative;overflow:hidden;min-height:330px}.example-photo img{width:100%;height:100%;object-fit:cover;object-position:center}.example-photo figcaption{position:absolute;bottom:12px;left:16px;color:#fff;text-shadow:0 1px 4px #000;background:#1c2b3a65;padding:4px 7px;border-radius:3px;font-size:12px}.example-copy{padding:36px clamp(24px,4.3vw,72px);align-self:center}.example-copy h2{font-size:clamp(27px,3vw,39px);letter-spacing:-.035em;line-height:1.14;margin:14px 0 24px}.checks{list-style:none;margin:0;padding:0}.checks li{display:flex;gap:12px;align-items:center;color:#3c4c5b;font-size:15px;margin:10px 0}.checks li:before{content:"✓";display:grid;place-items:center;flex:none;width:25px;height:25px;background:var(--green);color:#fff;border-radius:50%;font-size:16px;font-weight:700}.note{font-size:12px;color:var(--muted);border-top:1px solid #c4cec7;margin:23px 0 0;padding-top:12px}
.contact{display:grid;grid-template-columns:1.55fr 1fr auto;gap:clamp(16px,3vw,42px);align-items:center;background:var(--green);color:#fff;padding:27px clamp(24px,3vw,56px)}.contact h2{font-size:clamp(22px,2.1vw,28px);margin-bottom:5px;letter-spacing:-.02em}.contact p{font-size:14px;margin:0}.contact-email{display:flex;align-items:center;gap:13px;text-decoration:none;border-left:1px solid #ffffff68;padding-left:clamp(16px,3vw,38px);white-space:nowrap;font-size:14px}.contact-email svg{width:23px;height:23px}.contact-email:hover{text-decoration:underline}.button-light{background:#fff;color:var(--ink);padding-inline:24px}.button-light:hover{background:#e7ede5}.button-light span{font-size:21px;font-weight:400;line-height:10px}.site-footer{display:flex;justify-content:space-between;padding:22px clamp(24px,3vw,56px);color:#3c4c5b;font-size:12px}.site-footer nav{display:flex;gap:28px}
@media(max-width:1100px){.hero{grid-template-columns:49% 51%}.hero h1{font-size:clamp(36px,4vw,52px)}.hero-copy{padding-top:65px}.hero-actions .button{font-size:13px}.contact{grid-template-columns:1fr auto}.contact-email{border-left:0;padding:0}.contact-intro{grid-column:1/-1}.button-light{grid-column:2;grid-row:2}}
@media(max-width:760px){.site-header{height:auto;min-height:72px;grid-template-columns:1fr auto;padding:8px 18px;gap:10px}.brand{width:100px}.main-nav{grid-row:2;grid-column:1/-1;justify-content:center;gap:22px;padding:9px 0 5px;border-top:1px solid var(--rule);font-size:13px}.button-header{font-size:12px;padding:9px 11px;min-height:40px}.hero{grid-template-columns:1fr}.hero-copy{padding:55px 22px 27px}.hero h1{font-size:clamp(36px,7vw,58px);white-space:normal}.hero-lead{font-size:18px}.origin{margin-top:15px;padding-top:0}.hero-photo{min-height:0;height:390px}.steps{grid-template-columns:1fr;gap:0;max-width:460px;margin:auto}.step{display:grid;grid-template-columns:42% 58%;gap:8px;align-items:center}.step-illustration{height:114px}.step-description{margin:0}.step-arrow{transform:rotate(90deg);margin:2px 0 2px 30%;font-size:27px;text-align:left}.section-heading p{font-size:16px}.example{grid-template-columns:1fr}.example-photo{height:320px;min-height:0}.example-copy{padding:40px 24px}.contact{grid-template-columns:1fr;gap:16px}.contact-intro,.button-light{grid-column:auto;grid-row:auto}.contact-email{white-space:normal}.button-light{justify-self:start}.site-footer{gap:18px;flex-wrap:wrap}}
@media(max-width:430px){.main-nav{gap:14px;font-size:12px}.hero-actions{width:100%}.hero-actions .button{width:100%}.hero-photo{height:270px}.step{grid-template-columns:36% 64%}.step-illustration{height:95px}.step-description{gap:8px}.step h3{font-size:14px}.step p{font-size:12px}.section-container{padding-inline:18px}.site-footer nav{gap:14px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}.button{transition:none}}

/* Sections séparées et schémas techniques de la version 3. */
.hero{border-bottom:1px solid #cbd7ce}
.hero-copy{border-right:1px solid #e3eae5}
.hero-actions{flex-direction:column;align-items:flex-start}
.hero-actions .button{min-width:255px;justify-content:space-between}
.system{background:#f5f8f5;border-top:7px solid #fff;border-bottom:1px solid #d1ded2}
.system.section-container{max-width:none;padding:66px clamp(24px,4.4vw,78px) 78px}
.section-heading{max-width:1550px;margin:0 auto 34px}
.section-heading h2{font-size:clamp(30px,3.1vw,45px)}
.section-heading p{font-size:clamp(17px,1.75vw,22px);line-height:1.45}
.steps{max-width:1550px;margin:0 auto;grid-template-columns:minmax(0,1fr) 38px minmax(0,1fr) 38px minmax(0,1fr);gap:clamp(8px,1.1vw,20px);padding:0;align-items:stretch}
.step{background:#fff;border:1px solid #dbe5dd;border-radius:12px;padding:16px 13px 23px;box-shadow:0 10px 28px rgba(31,65,37,.045)}
.step-illustration{height:auto;aspect-ratio:420/230;min-height:155px}
.step-illustration img{width:100%;height:100%;object-fit:contain}
.step-description{margin:7px auto 0;max-width:350px;gap:13px}
.step h3{font-size:clamp(16px,1.3vw,20px);margin-bottom:5px}
.step p{font-size:clamp(13px,1.05vw,15px);line-height:1.5}
.step-arrow{align-self:center;margin:0 0 45px;font-size:35px;color:var(--green)}
.example{border-top:7px solid #fff;border-bottom:1px solid #d0dcd2;background:#fff}
.example-photo{min-height:420px}
.example-copy{padding-top:55px;padding-bottom:55px}
.contact{border-top:7px solid #fff}
@media(max-width:1100px){.hero-actions .button{min-width:0}}
@media(max-width:760px){.hero-copy{border-right:0}.hero-actions{width:100%}.hero-actions .button{width:100%;max-width:340px}.system.section-container{padding:48px 22px 55px}.section-heading{margin-bottom:25px}.steps{grid-template-columns:1fr;max-width:500px;gap:0}.step{display:block;padding:13px 17px 22px}.step-illustration{height:auto;min-height:0;max-height:230px}.step-description{margin:0 auto}.step-arrow{text-align:center;transform:rotate(90deg);margin:0;height:41px;line-height:41px}.example-photo{min-height:0}.example-copy{padding-top:48px;padding-bottom:50px}}
@media(max-width:430px){.system.section-container{padding-inline:18px}.step-illustration{height:auto}.step-description{gap:12px}.step h3{font-size:17px}.step p{font-size:13px}}