:root{--ink:#10243a;--ink2:#2b3f55;--muted:#5b6b7c;--bg:#f6f8f7;--card:#fff;--brand:#0e7c66;--brand-d:#0a5f4e;--brand-l:#e3f4ef;--accent:#f4b63f;--accent-d:#d99a1e;--line:#e2e8e6;--r:14px;--shadow:0 10px 30px rgba(16,36,58,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:var(--brand-d)}a:hover{color:var(--brand)}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(2rem,4.6vw,3.4rem);font-weight:800}
h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800}
h3{font-size:1.2rem;font-weight:700}
p{margin:0 0 1em}
.wrap{width:min(1160px,92%);margin:0 auto}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;background:#fff;padding:8px;z-index:99}
/* topbar + header */
.topbar{background:var(--ink);color:#cfe0dc;font-size:.85rem}
.topbar .wrap{display:flex;justify-content:space-between;gap:1rem;padding:.4rem 0;flex-wrap:wrap}
.topbar a{color:#fff;text-decoration:none;font-weight:600}
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:1rem}
.logo{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--ink)}
.logo-mark{width:40px;height:40px;flex:none}
.logo-txt{display:flex;flex-direction:column;line-height:1.05}
.logo-txt strong{font-size:1.3rem;font-weight:800;letter-spacing:-.02em}
.logo-txt small{font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
nav.main ul{list-style:none;display:flex;gap:1.4rem;margin:0;padding:0;align-items:center}
nav.main a{text-decoration:none;color:var(--ink2);font-weight:600;font-size:.95rem}
nav.main a[aria-current="page"],nav.main a:hover{color:var(--brand)}
.burger{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;padding:10px}
.burger span{display:block;height:2px;background:var(--ink);margin:6px 0;border-radius:2px;transition:.2s}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.85rem 1.4rem;border-radius:999px;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;font-size:1rem;transition:transform .15s,background .15s;font-family:inherit}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:var(--ink)}.btn-primary:hover{background:var(--accent-d);color:var(--ink)}
.btn-brand{background:var(--brand);color:#fff}.btn-brand:hover{background:var(--brand-d);color:#fff}
.btn-ghost{border-color:currentColor;color:#fff}.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.08)}
.btn-outline{border-color:var(--brand);color:var(--brand)}
.btn-sm{padding:.55rem 1rem;font-size:.9rem}
/* hero */
.hero{background:radial-gradient(1200px 500px at 85% -10%,#15967b 0,transparent 60%),linear-gradient(160deg,#0b3d3a 0%,#10243a 70%);color:#fff;padding:4.5rem 0 5rem;position:relative;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;align-items:center}
.eyebrow{display:inline-block;background:rgba(244,182,63,.15);color:var(--accent);border:1px solid rgba(244,182,63,.4);padding:.3rem .8rem;border-radius:999px;font-size:.82rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-bottom:1rem}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .lead{font-size:1.2rem;color:#d6e6e2;max-width:36em}
.hero .ctas{display:flex;gap:.8rem;flex-wrap:wrap;margin:1.6rem 0}
.chips{display:flex;flex-wrap:wrap;gap:.5rem;list-style:none;padding:0;margin:0}
.chips li{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);padding:.35rem .8rem;border-radius:999px;font-size:.88rem}
.chips li:before{content:"✓ ";color:var(--accent);font-weight:800}
.hero-art{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:24px;padding:1.4rem}
.hero-card{background:#fff;color:var(--ink);border-radius:18px;padding:1.4rem;box-shadow:var(--shadow);margin-top:-2.5rem;position:relative;margin-left:1.5rem;margin-right:-1rem}
.hero-card strong{display:block;font-size:1.05rem}
.hero-card a.tel{font-size:1.5rem;font-weight:800;text-decoration:none;color:var(--brand-d)}
/* page hero */
.phero{background:linear-gradient(160deg,#0b3d3a 0%,#10243a 80%);color:#fff;padding:3.5rem 0 3rem}
.phero p{color:#d6e6e2;font-size:1.12rem;max-width:44em}
.crumbs{font-size:.85rem;margin-bottom:1rem;color:#9fc3bb}.crumbs a{color:#cfe8e2}
/* sections */
section{padding:4.5rem 0}
.alt{background:var(--bg)}
.sec-head{max-width:46em;margin-bottom:2.4rem}
.sec-head p{color:var(--muted);font-size:1.08rem}
.kicker{color:var(--brand);font-weight:800;text-transform:uppercase;letter-spacing:.08em;font-size:.8rem;display:block;margin-bottom:.5rem}
.grid{display:grid;gap:1.3rem}
.g3{grid-template-columns:repeat(3,1fr)}.g2{grid-template-columns:repeat(2,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.6rem;box-shadow:0 1px 0 rgba(0,0,0,.02);transition:box-shadow .2s,transform .2s;display:flex;flex-direction:column}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.card p{color:var(--muted);font-size:.98rem}
.card .more{margin-top:auto;font-weight:700;text-decoration:none}
.ico{width:52px;height:52px;border-radius:12px;background:var(--brand-l);color:var(--brand);display:grid;place-items:center;margin-bottom:1rem}
.ico svg{width:28px;height:28px}
.price{font-size:.88rem;background:#fff7e6;border:1px dashed var(--accent-d);color:#7a5200;padding:.35rem .6rem;border-radius:8px;display:inline-block;margin:.3rem 0 1rem}
.ticks{list-style:none;padding:0;margin:0 0 1rem}
.ticks li{padding-left:1.7rem;position:relative;margin:.45rem 0}
.ticks li:before{content:"";position:absolute;left:0;top:.35em;width:1.05rem;height:1.05rem;border-radius:50%;background:var(--brand) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='4'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/70% no-repeat}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.steps li{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1.4rem 1.3rem 1.3rem;position:relative}
.steps li:before{counter-increment:s;content:counter(s);width:38px;height:38px;border-radius:50%;background:var(--accent);color:var(--ink);font-weight:800;display:grid;place-items:center;margin-bottom:.8rem}
.steps strong{display:block;margin-bottom:.25rem}
.steps span{color:var(--muted);font-size:.95rem}
.split{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.flow{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
.flow div{background:#fff;border-radius:var(--r);padding:1.2rem;border:1px solid var(--line);text-align:center}
.flow b{display:block;font-size:2rem;line-height:1;margin-bottom:.4rem}
.aud{display:flex;flex-wrap:wrap;gap:.6rem}
.aud span{background:#fff;border:1px solid var(--line);padding:.5rem 1rem;border-radius:999px;font-weight:600}
.arr{display:grid;grid-template-columns:repeat(10,1fr);gap:.5rem}
.arr a{display:block;text-align:center;padding:.6rem 0;border-radius:10px;background:#fff;border:1px solid var(--line);text-decoration:none;font-weight:700;color:var(--ink)}
.arr a:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
table.zones{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
table.zones th,table.zones td{padding:.75rem 1rem;text-align:left;border-bottom:1px solid var(--line);font-size:.98rem}
table.zones th{background:var(--ink);color:#fff}
table.zones tr:nth-child(even) td{background:#fafcfb}
/* faq */
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 1.2rem;margin-bottom:.7rem}
details[open]{box-shadow:var(--shadow)}
summary{cursor:pointer;font-weight:700;padding:1.05rem 2rem 1.05rem 0;list-style:none;position:relative}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";position:absolute;right:0;top:.7rem;font-size:1.5rem;color:var(--brand);font-weight:400}
details[open] summary:after{content:"–"}
details>div{padding:0 0 1.1rem;color:var(--ink2)}
/* cta band */
.band{background:linear-gradient(120deg,var(--brand) 0%,#0b5c63 100%);color:#fff;border-radius:24px;padding:2.6rem;display:grid;grid-template-columns:1.4fr 1fr;gap:2rem;align-items:center}
.band p{color:#d9f0ea;margin:0}
.band .ctas{display:flex;gap:.7rem;flex-wrap:wrap;justify-content:flex-end}
/* form */
form.devis{background:#fff;border:1px solid var(--line);border-radius:20px;padding:2rem;box-shadow:var(--shadow)}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
label{display:block;font-weight:600;font-size:.92rem;margin:.9rem 0 .35rem}
input,select,textarea{width:100%;padding:.8rem .9rem;border:1.5px solid var(--line);border-radius:10px;font:inherit;font-size:1rem;background:#fbfcfc;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px var(--brand-l)}
.check{display:flex;gap:.6rem;align-items:flex-start;font-weight:400;font-size:.88rem;color:var(--muted)}
.check input{width:auto;margin-top:.3rem}
.note{font-size:.85rem;color:var(--muted)}
.contact-box{background:var(--ink);color:#fff;border-radius:20px;padding:2rem}
.contact-box a{color:#fff;font-weight:700;text-decoration:none}
.contact-box .big{font-size:1.5rem;display:block;margin:.2rem 0 1rem}
.todo{background:#fff7e6;border-left:4px solid var(--accent);padding:.8rem 1rem;border-radius:8px;font-size:.92rem}
.prose{max-width:48em}.prose h2{margin-top:2rem;font-size:1.5rem}
/* footer */
footer.site{background:#0b1a2a;color:#a9b8c6;padding:3.5rem 0 2.5rem;font-size:.93rem}
footer.site .cols{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:2rem}
footer.site h4{color:#fff;margin:0 0 .8rem;font-size:1rem}
footer.site ul{list-style:none;padding:0;margin:0}footer.site li{margin:.35rem 0}
footer.site a{color:#d4dee8;text-decoration:none}footer.site a:hover{color:#fff}
.legal-line{border-top:1px solid #1f3247;margin-top:2.5rem;padding-top:1.2rem;font-size:.82rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
/* mobile sticky bar */
.mbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:60;background:#fff;border-top:1px solid var(--line);padding:.6rem;gap:.6rem;box-shadow:0 -6px 20px rgba(0,0,0,.08)}
.mbar .btn{flex:1;padding:.8rem .5rem}
@media (max-width:980px){
 .hero .wrap,.split,.band{grid-template-columns:1fr}
 .hero-art{display:none}
 .g3,.g4{grid-template-columns:1fr 1fr}
 .arr{grid-template-columns:repeat(5,1fr)}
 footer.site .cols{grid-template-columns:1fr 1fr}
 .band .ctas{justify-content:flex-start}
 .steps{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
 .burger{display:block}
 nav.main{position:absolute;left:0;right:0;top:100%;box-shadow:0 12px 24px rgba(0,0,0,.08);background:#fff;border-bottom:1px solid var(--line);display:none;padding:1rem 4%}
 nav.main.open{display:block}
 nav.main ul{flex-direction:column;align-items:stretch;gap:0}
 nav.main li a{display:block;padding:.85rem 0;border-bottom:1px solid var(--line)}
 nav.main .btn{margin-top:.8rem;display:flex}
 .topbar .hide-m{display:none}
 .mbar{display:flex}
 footer.site{padding-bottom:6rem}
}
@media (max-width:620px){
 body{font-size:16px}
 section{padding:3.2rem 0}
 .hero{padding:3rem 0 3.5rem}
 .g3,.g4,.g2,.frow,.steps{grid-template-columns:1fr}
 .arr{grid-template-columns:repeat(4,1fr)}
 footer.site .cols{grid-template-columns:1fr}
 .band{padding:1.8rem}
 .hero .ctas .btn{flex:1 1 100%}
 table.zones td,table.zones th{padding:.6rem .6rem;font-size:.9rem}
}