:root{--navy:#142d4e;--ink:#10253f;--orange:#f7941d;--blue:#079bea;--paper:#f6f7f9;--muted:#52647a;--line:#dce3eb}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);line-height:1.6}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;display:block;height:auto}.wrap{max-width:1240px;margin:auto;padding:0 32px}.skip{position:absolute;left:20px;top:-100px;background:white;padding:12px;z-index:20}.skip:focus{top:10px}:focus-visible{outline:3px solid var(--blue);outline-offset:5px}header{position:sticky;top:0;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);z-index:10}.nav{height:92px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand img{width:166px;height:78px;object-fit:contain}nav{display:flex;align-items:center;gap:28px}nav a{font-size:14px;font-weight:600}nav 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/* Identité Kaltech : bleu, orange, surfaces claires et repères discrets. */
header{box-shadow:0 3px 22px #142d4e08}.brand img{width:190px;height:80px}.button{box-shadow:0 5px 14px #f7941d22;transition:background .2s,box-shadow .2s}.button:hover{box-shadow:0 8px 20px #f7941d33}.eyebrow{color:#a34e00}.contact .eyebrow{color:#ffac44}.hero{position:relative}.hero h1 em{color:#a54d00}.service{border-top:3px solid var(--blue)}.service:nth-child(2){border-top-color:var(--navy)}.service:nth-child(3){border-top-color:var(--orange)}.offers-section{padding-top:20px}.offers{display:grid;grid-template-columns:repeat(3,1fr);gap:23px}.offer{display:flex;flex-direction:column;align-items:flex-start;background:white;border:1px solid var(--line);border-radius:12px;padding:30px;position:relative;overflow:hidden}.offer:before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:var(--blue)}.offer:nth-child(2):before{background:var(--orange)}.offer:nth-child(3):before{background:var(--navy)}.offer-number{font-size:12px;color:#a34e00;font-weight:700;letter-spacing:2px}.offer h3{font-size:24px;margin:18px 0 8px}.offer p,.offer li{font-size:14px;color:var(--muted)}.offer ul{padding-left:18px;margin-bottom:24px}.offer .offer-price{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);width:100%;font-size:12px}.offer .button{width:100%;font-size:13px}.sig-note{margin-top:26px;border:1px solid var(--line);background:#eaf0f5;border-radius:12px;padding:25px 30px;display:flex;align-items:center;justify-content:space-between;gap:30px}.sig-note h3{margin:0;font-size:18px}.sig-note p{margin:8px 0 0;color:var(--muted);font-size:14px}.sig-note a{flex-shrink:0}.footer-bottom{gap:18px;flex-wrap:wrap}.share-link{font-weight:700;color:var(--ink)}
@media(max-width:1000px){.nav nav{gap:13px}.nav nav a{font-size:12px}.offer{padding:23px}.sig-note{align-items:flex-start;flex-direction:column;gap:18px}}
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