:root{
  --blue:#52bdec; --blue-d:#0b6e99; --navy:#14323f; --ink:#25414d;
  --cream:#fbf7f0; --sand:#f1ebdf; --white:#fff; --line:#e3dccd;
  --radius:16px; --shadow:0 8px 24px rgba(20,50,63,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:17px/1.65 "Nunito","Avenir Next",ui-rounded,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--cream)}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-d)}
a:hover{color:var(--navy)}
h1,h2,h3{color:var(--navy);line-height:1.2;margin:0 0 .5em;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.4vw,3.2rem)}
h2{font-size:clamp(1.5rem,2.6vw,2rem);margin-top:1.6em}
h3{font-size:1.2rem}
p{margin:0 0 1em}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.narrow{max-width:760px}
.skip{position:absolute;left:-999px;top:0;background:var(--navy);color:#fff;padding:10px 14px;z-index:20}
.skip:focus{left:8px;top:8px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
:focus-visible{outline:3px solid var(--navy);outline-offset:3px;border-radius:4px}

.demo-band{background:var(--navy);color:#fff;text-align:center;font-size:.85rem;padding:6px 12px}

.site-header{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.bar{display:flex;align-items:center;gap:20px;padding-top:4px;padding-bottom:4px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--navy)}
.brand strong{display:block;font-size:1.15rem;line-height:1.1}
.brand small{display:block;color:var(--ink);font-size:.8rem}
nav{margin-left:auto}
nav ul{list-style:none;display:flex;gap:4px;margin:0;padding:0;flex-wrap:wrap}
nav a{display:block;padding:5px 12px;line-height:1.5;border-radius:999px;text-decoration:none;color:var(--navy);font-weight:700;font-size:.95rem}
nav a:hover{background:var(--sand)}
nav a[aria-current=page]{background:var(--blue);color:var(--navy)}

.btn{display:inline-block;background:var(--blue);color:var(--navy);text-decoration:none;font-weight:800;padding:2px 18px;line-height:1.35;border-radius:999px;border:2px solid var(--blue);cursor:pointer;font:inherit;font-weight:800;transition:transform .15s,background .15s}
.btn:hover{background:var(--navy);border-color:var(--navy);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--blue)}
.btn-ghost:hover{background:var(--blue);border-color:var(--blue);color:var(--navy)}
.btn-call{padding:3px 16px;font-size:.95rem;line-height:1.5}
.btn-light{background:#fff;color:var(--navy);border-color:#fff}
.btn-light:hover{background:var(--navy);color:#fff;border-color:var(--navy)}
.btn-ghost-light{background:transparent;color:var(--navy);border-color:var(--navy)}
.btn-ghost-light:hover{background:var(--navy);color:#fff}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin:1.4em 0}

.kicker{text-transform:uppercase;letter-spacing:.12em;font-size:.8rem;font-weight:800;color:var(--blue-d);margin-bottom:.6em}
.lead{font-size:1.2rem;max-width:42em}

.hero{background:linear-gradient(180deg,#e9f6fc 0%,var(--cream) 100%);padding:64px 0 56px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.ticks{list-style:none;padding:0;margin:0;display:grid;gap:6px}
.ticks li{padding-left:28px;position:relative;font-weight:700;color:var(--navy)}
.ticks li::before{content:"";position:absolute;left:0;top:.45em;width:16px;height:16px;border-radius:50%;background:var(--blue)}
.hero-photos{position:relative;height:420px}
.hero-photos img{position:absolute;width:200px;height:auto;border-radius:18px;box-shadow:var(--shadow);border:6px solid #fff}
.hero-photos .p1{left:6%;top:0;transform:rotate(-4deg)}
.hero-photos .p2{right:0;top:60px;transform:rotate(3deg)}

.section{padding:56px 0}
.section.alt{background:var(--sand)}
.section-lead{max-width:44em}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:28px}
.card{display:block;background:#fff;border-radius:var(--radius);padding:26px;text-decoration:none;color:var(--ink);box-shadow:var(--shadow);transition:transform .15s}
.card:hover{transform:translateY(-3px);color:var(--ink)}
.card img{width:96px;height:96px;border-radius:50%;object-fit:cover;margin-bottom:14px;border:4px solid var(--blue)}
.card .more{color:var(--blue-d);font-weight:800}

.steps{list-style:none;counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:0;margin:24px 0 0}
.steps li{counter-increment:s;background:#fff;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.steps li::before{content:counter(s);display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--blue);color:var(--navy);font-weight:800;margin-bottom:10px}
.steps strong{display:block;color:var(--navy);margin-bottom:4px}
.steps span{font-size:.95rem}

.two{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.two h2:first-child{margin-top:0}
.list{padding-left:1.2em;margin:0 0 1.2em}
.list li{margin-bottom:.4em}
.note{background:#fff;border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.note h2{margin-top:0}

.price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:24px 0}
.price-grid>div{background:#fff;border-radius:var(--radius);padding:22px;text-align:center;box-shadow:var(--shadow)}
.price{display:block;font-size:2.3rem;font-weight:800;color:var(--blue-d);line-height:1}
.price-grid p{margin:.6em 0 0}
.price-grid small{color:var(--ink)}

details{background:#fff;border-radius:12px;padding:14px 18px;margin-bottom:10px;box-shadow:0 2px 8px rgba(20,50,63,.06)}
summary{cursor:pointer;font-weight:800;color:var(--navy)}
details p{margin:.6em 0 0}

.band{background:var(--blue);color:var(--navy);text-align:center;padding:56px 0}
.band h2{color:var(--navy);margin-top:0}
.band p{font-size:1.1rem}

.page-head{background:linear-gradient(180deg,#e9f6fc 0%,var(--cream) 100%);padding:48px 0 24px}
.page-head h1{margin-bottom:.4em}
.prose h2:first-of-type{margin-top:0}
.prose .side{float:right;width:200px;margin:0 0 16px 28px;border-radius:18px;border:6px solid #fff;box-shadow:var(--shadow);transform:rotate(2deg)}
.prose::after{content:"";display:block;clear:both}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:10px;padding:0;margin:0 0 1.4em}
.chips li{background:#fff;border:2px solid var(--blue);color:var(--navy);font-weight:800;padding:6px 16px;border-radius:999px}

table.prices{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin-bottom:1.6em}
.prices th,.prices td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line)}
.prices thead th{background:var(--navy);color:#fff}
.prices tbody th{font-weight:700;color:var(--navy)}
.prices td:last-child{font-weight:800;color:var(--blue-d);white-space:nowrap}

.form{display:grid;gap:16px}
.form label{display:grid;gap:6px;font-weight:800;color:var(--navy)}
.form input,.form textarea{font:inherit;padding:12px 14px;border:2px solid var(--line);border-radius:12px;background:#fff;color:var(--ink)}
.form input:focus,.form textarea:focus{border-color:var(--blue-d);outline:none}
.hp{position:absolute;left:-9999px}
.ok{background:#e6f6ec;border:2px solid #2f9e5b;border-radius:12px;padding:18px}
.err{background:#fdeceb;border:2px solid #c0392b;border-radius:12px;padding:12px 18px;margin-bottom:16px}
.err p{margin:.2em 0}

.site-footer{background:var(--navy);color:#d7e6ed;padding:44px 0 0;margin-top:0}
.site-footer a{color:#fff}
.cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.foot-title{font-weight:800;color:#fff;margin-bottom:.6em}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:.4em}
.credit{text-align:center;border-top:1px solid rgba(255,255,255,.15);margin:32px 0 0;padding:16px;font-size:.85rem}

@media (max-width:900px){
  .site-header{position:static}
  .bar{gap:6px 12px}
  .brand{order:1}
  .btn-call{order:2;margin-left:auto}
  .burger{order:3;display:inline-flex}
  nav{order:4;width:100%;margin-left:0;display:none}
  .nav-toggle:checked ~ nav{display:block}
  nav ul{flex-direction:column;gap:2px;padding:6px 0 10px}
  nav a{padding:10px 14px;font-size:1rem}
  .hero-grid,.two,.cols{grid-template-columns:1fr}
  .cards,.steps,.price-grid{grid-template-columns:1fr 1fr}
  .hero-photos{height:450px;max-width:420px;width:100%;margin:0 auto}
}
@media (max-width:560px){
  .cards,.steps,.price-grid{grid-template-columns:1fr}
  nav{margin-left:0;width:100%}
  .prose .side{float:none;margin:0 auto 20px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* Bouton Menu (visible seulement sur petit écran) */
.nav-toggle{position:absolute;opacity:0;width:1px;height:1px}
.burger{display:none;align-items:center;gap:8px;cursor:pointer;font-weight:800;color:var(--navy);border:2px solid var(--blue);border-radius:999px;padding:3px 14px;line-height:1.5;font-size:.95rem;user-select:none}
.burger-ico{width:16px;height:2px;background:var(--navy);box-shadow:0 5px 0 var(--navy),0 -5px 0 var(--navy)}
.nav-toggle:focus-visible ~ .burger{outline:3px solid var(--navy);outline-offset:3px}
.nav-toggle:checked ~ .burger{background:var(--blue)}
.brand{order:1}
nav{order:2}
.btn-call{order:3}
@media (max-width:900px){
  .burger{display:inline-flex}
  .btn-call{order:2;margin-left:auto}
  .burger{order:3}
  nav{order:4}
}
@media (max-width:560px){
  .hero{padding:36px 0 28px}
  .hero-photos{height:330px;max-width:300px}
  .hero-photos img{width:150px}
  .hero-photos .p1{left:4%}
  .hero-photos .p2{top:40px}
}
/* En-tête centré sur petit écran : logo en haut, puis téléphone et Menu côte à côte, espacés */
@media (max-width:900px){
  .bar{justify-content:center;gap:8px 18px;padding-top:8px;padding-bottom:10px}
  .brand{width:100%;justify-content:center}
  .brand span{text-align:left}
  .btn-call{margin-left:0}
  nav ul{align-items:stretch}
  nav a{text-align:center}
}

/* Typographie : pas de mot seul sur la dernière ligne, titres équilibrés */
p,li,td,th,summary,.lead{text-wrap:pretty}
h1,h2,h3{text-wrap:balance}

.nw{white-space:nowrap}
@media (max-width:420px){
  .wrap{padding:0 16px}
  .prices th,.prices td{padding:10px 8px;font-size:.92rem}
  .note{padding:22px}
}
@media (max-width:360px){
  .prices th,.prices td{padding:8px 5px;font-size:.85rem}
  .prices td:last-child{white-space:normal}
}
@media (max-width:340px){
  h1{font-size:1.7rem}
  .wrap{padding:0 12px}
  .prices th,.prices td{padding:8px 4px;font-size:.8rem}
}

/* Téléphone : espacements resserrés */
@media (max-width:900px){
  .section{padding:40px 0}
  .band{padding:40px 0}
  .wrap > h2:first-child,.section h2:first-child{margin-top:0}
}
@media (max-width:560px){
  body{font-size:16px;line-height:1.55}
  p{margin-bottom:.75em}
  h2{margin-top:1.1em;margin-bottom:.4em}
  .section{padding:26px 0}
  .band{padding:28px 0}
  .band p{margin-bottom:.6em}
  .page-head{padding:24px 0 6px}
  .hero{padding:24px 0 14px}
  .hero-grid{gap:14px}
  .lead{font-size:1.05rem}
  .cta{margin:1em 0}
  .hero-photos{height:290px}
  .section-lead{margin-bottom:.4em}
  .cards{gap:12px;margin-top:16px}
  .card{padding:16px 18px}
  .card img{width:60px;height:60px;margin-bottom:8px;border-width:3px}
  .card h3{margin-bottom:.25em}
  .card p{margin-bottom:.4em}
  .steps{gap:10px;margin-top:14px}
  .steps li{display:grid;grid-template-columns:34px 1fr;column-gap:12px;padding:14px 16px;align-items:start}
  .steps li::before{grid-row:1 / span 2;margin-bottom:0}
  .steps strong{margin-bottom:0}
  .two{gap:20px}
  .note{padding:18px}
  .price-grid{grid-template-columns:1fr 1fr;gap:10px;margin:14px 0}
  .price-grid>div{padding:14px 10px}
  .price{font-size:1.8rem}
  .list{margin-bottom:.8em}
  details{padding:12px 14px;margin-bottom:8px}
  .site-footer{padding-top:28px}
  .cols{gap:20px}
  .credit{margin-top:20px}
  .prose .side{margin-bottom:12px}
}

/* En-tête téléphone/tablette : plus aéré, boutons faciles à toucher */
@media (max-width:900px){
  .bar{padding-top:16px;padding-bottom:14px;gap:14px 18px}
  .brand img{width:52px;height:52px}
  .btn-call,.burger{padding:7px 20px;line-height:1.4;font-size:.95rem}
  nav{border-top:1px solid var(--line);padding-top:6px}
  nav ul{gap:4px;padding:6px 0 4px}
  nav a{padding:12px 16px}
}

/* Échelle d'espacement homogène : section 44 px, blocs 24 px, grilles 20 px, titres 36 px au-dessus / 14 px en dessous */
h2:first-child,.section h2:first-child,.wrap > h2:first-child{margin-top:0}
@media (min-width:901px){
  .hero{padding:44px 0 40px}
  .hero-grid{gap:32px}
  .hero-photos{height:400px}
  .section{padding:44px 0}
  .band{padding:44px 0}
  .page-head{padding:36px 0 14px}
  .page-head h1{margin-bottom:.3em}
  h2{margin-top:1.3em;margin-bottom:.4em}
  .section-lead{margin-bottom:.4em}
  .cards{gap:20px;margin-top:22px}
  .card{padding:22px}
  .steps{gap:20px;margin-top:20px}
  .steps li{padding:20px}
  .two{gap:40px}
  .note{padding:24px}
  .price-grid{gap:20px;margin:20px 0}
  .price-grid>div{padding:20px}
  .list{margin-bottom:1em}
  details{margin-bottom:8px}
  .site-footer{padding-top:36px}
  .credit{margin-top:24px}
}

/* Formulaire : repères, champs lisibles */
.form-help{margin:0 0 1em;color:var(--ink)}
.hint{font-weight:400;color:#4a5b64;font-size:.9em}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form input,.form select,.form textarea{border-color:#7a8a92}
.form select{font:inherit;padding:12px 14px;border:2px solid #7a8a92;border-radius:12px;background:#fff;color:var(--ink);width:100%}
.form select:focus{border-color:var(--blue-d);outline:none}
.form textarea::placeholder,.form input::placeholder{color:#5f6b72;opacity:1}
.form [aria-invalid=true]{border-color:#c0392b}
.field-err{font-weight:700;color:#a5281b;font-size:.92rem}
.err a{color:#a5281b;font-weight:700}
@media (max-width:560px){ .form-row{grid-template-columns:1fr} }

/* Barre d'action fixe en bas (téléphone et tablette) : appeler / devis toujours à portée du pouce */
.action-bar{display:none}
@media (max-width:900px){
  .action-bar{display:flex;gap:10px;position:fixed;left:0;right:0;bottom:0;z-index:20;background:#fff;border-top:1px solid var(--line);padding:8px 12px calc(8px + env(safe-area-inset-bottom));box-shadow:0 -4px 14px rgba(20,50,63,.10)}
  .action-bar .btn{flex:1;text-align:center;padding:10px 14px;line-height:1.4}
  body{padding-bottom:calc(66px + env(safe-area-inset-bottom))}
}

/* Formulaire : titre et mention sur la même ligne, exemples en texte normal, bouton confortable */
.form label{display:block}
.form label > input,.form label > select,.form label > textarea{display:block;width:100%;margin-top:6px;font-weight:400}
.form ::placeholder{font-weight:400}
.field-err{display:block;margin-top:6px}
.form .btn{padding:10px 24px;justify-self:start}
@media (max-width:560px){.form .btn{justify-self:stretch;text-align:center}}