*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:Poppins,sans-serif;background:#f7f8fb;color:#1d2743;overflow-x:hidden}
a{text-decoration:none}
button{font:inherit}

header{
position:fixed;top:16px;left:50%;transform:translateX(-50%);
width:98%;max-width:1480px;background:rgba(255,255,255,.94);
backdrop-filter:blur(12px);border-radius:22px;padding:14px 30px;
display:flex;justify-content:space-between;align-items:center;
box-shadow:0 10px 35px rgba(0,0,0,.08);z-index:1000
}
.logo{display:flex;align-items:center;gap:14px}
.logo h1{font-size:46px;color:#0b49c5;line-height:.9}
.logo span{display:block;letter-spacing:3px;font-size:14px}
nav{display:flex;gap:12px;align-items:center}
nav span{color:#b8bcc8}
nav a{color:#1d2743;font-weight:500}
nav a.active{color:#0b49c5;font-weight:700}
.devis{background:#1149c8;color:#fff!important;padding:14px 24px;border-radius:12px}

.menu-toggle{
display:none;width:44px;height:44px;border:0;border-radius:12px;
background:#eef3ff;color:#1149c8;font-size:22px;cursor:pointer
}

.hero{
min-height:690px;padding:180px 7% 80px;
background:linear-gradient(90deg,rgba(255,255,255,.94),rgba(255,255,255,.7) 45%,rgba(0,0,0,.08)),
url('../couverture-pro.jpg') center/cover;
display:flex;align-items:center
}
.hero-content{max-width:720px}
.eyebrow{color:#e2202c;font-size:18px;font-weight:800;margin-bottom:12px}
.hero h2{font-size:52px;line-height:1.08;margin-bottom:18px;font-weight:800}
.hero p{font-size:19px;max-width:640px;color:#404b63;line-height:1.7}
.cta{display:inline-block;background:#124bcc;color:#fff;padding:18px 32px;border-radius:12px;font-weight:700;margin-top:24px}

.side{
position:fixed;right:18px;top:50%;transform:translateY(-50%);
overflow:hidden;border-radius:16px;box-shadow:0 10px 25px rgba(0,0,0,.18);z-index:900
}
.side a{display:block;padding:18px;color:#fff;text-align:center}
.blue{background:#1149c8}.red{background:#e2202c}.dark{background:#152238}

.section{padding:70px 6%}
.section-title{text-align:center;font-size:42px;font-weight:800;margin-bottom:42px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.card{background:#fff;padding:28px;border-radius:18px;box-shadow:0 8px 25px rgba(0,0,0,.08)}
.card i{font-size:38px;color:#1149c8;margin-bottom:16px}
.card h3{margin-bottom:12px}
.card p{color:#566078;line-height:1.65}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.gallery figure{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 8px 25px rgba(0,0,0,.08)}
.gallery img{width:100%;height:240px;object-fit:cover;display:block}
.gallery figcaption{padding:15px}
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px}
form{background:#fff;padding:30px;border-radius:18px;box-shadow:0 8px 25px rgba(0,0,0,.08)}
input,textarea,select{width:100%;padding:14px;border:1px solid #d9deea;border-radius:10px;margin-bottom:14px;font:inherit}
button[type=submit]{border:0;background:#1149c8;color:#fff;padding:15px 24px;border-radius:10px;font-weight:700;cursor:pointer}

footer{background:#162238;color:#fff;padding:55px 8%;margin-top:50px}
footer *{color:#fff!important}
.footer-grid{display:flex;flex-wrap:wrap;justify-content:space-between;gap:40px}
footer hr{margin:35px 0;border-color:#2f3d5f}


@media(max-width:768px){
header{
top:0;left:0;transform:none;width:100%;max-width:none;border-radius:0;
padding:9px 14px;min-height:62px
}
.logo{gap:8px}
.logo svg{width:40px;height:34px}
.logo h1{font-size:26px}
.logo span{font-size:9px;letter-spacing:1.8px}

/* Uniquement le bouton hamburger est visible sur téléphone */
.menu-toggle{
display:flex!important;
align-items:center;
justify-content:center;
position:relative;
z-index:1002;
width:42px;height:42px;
border:0;border-radius:10px;
background:#eef3ff;color:#1149c8;
font-size:0;cursor:pointer
}
.menu-toggle::before{
content:"☰";
font-size:23px;
line-height:1;
}
.menu-toggle[aria-expanded="true"]::before{content:"✕"}

/* Menu complètement caché tant que l'utilisateur ne clique pas */
nav{
position:fixed!important;
top:62px!important;
left:0!important;
right:0!important;
width:100%!important;
max-height:calc(100vh - 62px);
overflow-y:auto;
background:rgba(255,255,255,.99);
backdrop-filter:blur(14px);
display:none!important;
flex-direction:column!important;
gap:0!important;
padding:8px 14px 18px!important;
box-shadow:0 18px 30px rgba(0,0,0,.13);
z-index:1001;
}
nav.open{display:flex!important}
nav span{display:none!important}
nav a{
display:block;width:100%;
padding:12px 14px;
text-align:left;
border-bottom:1px solid #edf0f6;
font-size:14px
}
nav .devis{
margin-top:10px;
border-bottom:0;
text-align:center!important;
padding:13px 16px;
border-radius:10px
}

.hero{min-height:auto;padding:112px 18px 52px;background-position:70% center}
.hero-content{max-width:100%;text-align:center}
.hero h2{font-size:31px}
.hero p{font-size:16px;max-width:100%}
.cta{display:block;width:100%;text-align:center}

.side{
left:50%;right:auto;top:auto;bottom:9px;transform:translateX(-50%);
display:flex;background:rgba(22,34,56,.28);backdrop-filter:blur(8px);
border-radius:999px;box-shadow:none
}
.side a{padding:9px 13px;font-size:11px;background:transparent!important;border-right:1px solid rgba(255,255,255,.2)}
.side a:last-child{border-right:none}

.grid,.gallery{grid-template-columns:1fr 1fr}
.two-col,.contact-grid{grid-template-columns:1fr}
.footer-grid{flex-direction:column}
}

@media(max-width:600px){
.hero{padding:112px 16px 48px;background-position:72% center}
.hero h2{font-size:28px}
.eyebrow{font-size:14px}
.section{padding:42px 16px}
.section-title{font-size:27px;margin-bottom:28px}
.grid,.gallery{grid-template-columns:1fr}
.card{padding:20px 16px}
.gallery img{height:210px}
footer{padding:45px 20px 90px}
}

@media(min-width:769px){.menu-toggle{display:none!important}nav{display:flex!important}}


/* ================= DIAPORAMA ACCUEIL ================= */
.hero-slider{
position:relative;
min-height:690px;
padding:0!important;
overflow:hidden;
background:#17223a;
}
.hero-slide{
position:absolute;
inset:0;
display:flex;
align-items:center;
padding:180px 7% 80px;
background-position:center;
background-size:cover;
opacity:0;
visibility:hidden;
transform:scale(1.035);
transition:opacity .9s ease,visibility .9s ease,transform 6s ease;
}
.hero-slide.active{
opacity:1;
visibility:visible;
transform:scale(1);
z-index:2;
}
.hero-shade{
position:absolute;
inset:0;
background:linear-gradient(90deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.77) 43%,rgba(8,19,40,.16) 100%);
}
.hero-slide .hero-content{
position:relative;
z-index:3;
}
.hero-slide .eyebrow,
.hero-slide h2,
.hero-slide p,
.hero-slide .cta{
opacity:0;
transform:translateY(18px);
transition:opacity .55s ease,transform .55s ease;
}
.hero-slide.active .eyebrow{opacity:1;transform:none;transition-delay:.15s}
.hero-slide.active h2{opacity:1;transform:none;transition-delay:.25s}
.hero-slide.active p{opacity:1;transform:none;transition-delay:.35s}
.hero-slide.active .cta{opacity:1;transform:none;transition-delay:.45s}

.slider-arrow{
position:absolute;
top:50%;
z-index:5;
width:48px;
height:48px;
transform:translateY(-50%);
border:1px solid rgba(255,255,255,.6);
border-radius:50%;
background:rgba(17,73,200,.72);
backdrop-filter:blur(8px);
color:#fff;
font-size:34px;
line-height:1;
cursor:pointer;
transition:.25s;
}
.slider-arrow:hover{background:#e2202c}
.slider-prev{left:22px}
.slider-next{right:22px}

.slider-dots{
position:absolute;
left:50%;
bottom:24px;
z-index:5;
display:flex;
gap:10px;
transform:translateX(-50%);
}
.slider-dot{
width:11px;
height:11px;
padding:0;
border:2px solid #fff;
border-radius:50%;
background:rgba(17,73,200,.35);
cursor:pointer;
box-shadow:0 2px 8px rgba(0,0,0,.18);
}
.slider-dot.active{
width:31px;
border-radius:999px;
background:#e2202c;
}

@media(max-width:768px){
.hero-slider{min-height:650px}
.hero-slide{
padding:112px 18px 60px;
background-position:center;
}
.hero-shade{
background:linear-gradient(180deg,rgba(255,255,255,.9) 0%,rgba(255,255,255,.76) 60%,rgba(255,255,255,.63) 100%);
}
.hero-slide .hero-content{
width:100%;
max-width:100%;
text-align:center;
}
.slider-arrow{
top:auto;
bottom:18px;
width:38px;
height:38px;
font-size:27px;
}
.slider-prev{left:16px}
.slider-next{right:16px}
.slider-dots{bottom:31px}
}

@media(prefers-reduced-motion:reduce){
.hero-slide,
.hero-slide .eyebrow,
.hero-slide h2,
.hero-slide p,
.hero-slide .cta{
transition:none!important;
}
}