*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --deep:#042C53;--dark:#0C447C;--mid:#185FA5;--bright:#378ADD;
  --light:#85B7EB;--pale:#B5D4F4;--ghost:#E6F1FB;--white:#F5F8FC;
}
html{scroll-behavior:smooth}
body{font-family:'DM Sans',sans-serif;background:var(--white);color:var(--deep);overflow-x:hidden}
a{color:inherit}
ul{list-style:none}

/* NAV */
nav{position:fixed;top:0;left:0;right:0;z-index:200;display:flex;justify-content:space-between;align-items:center;padding:1.2rem 3rem;background:rgba(4,44,83,0.92);backdrop-filter:blur(16px)}
.logo{font-family:'Bebas Neue',sans-serif;font-size:1.8rem;letter-spacing:.12em;color:var(--pale);text-decoration:none}
.logo span{color:#fff}
nav ul{display:flex;align-items:center;gap:2.5rem}
nav ul a{text-decoration:none;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--pale);transition:color .2s;padding-bottom:.3rem;border-bottom:2px solid transparent}
nav ul a:hover{color:#fff}
nav ul a.active{color:#fff;border-bottom-color:var(--bright)}
.nav-cta{background:var(--bright);color:#fff!important;padding:.55rem 1.2rem;border-radius:2px;border-bottom:none!important}
.nav-cta:hover{background:var(--mid)!important}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:.4rem}
.nav-toggle span{width:24px;height:2px;background:#fff;display:block}

/* HERO (accueil) */
.hero{position:relative;height:100vh;min-height:600px;overflow:hidden;display:flex;align-items:flex-end}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 20%}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(to top, rgba(4,44,83,.92) 0%, rgba(4,44,83,.45) 50%, rgba(4,44,83,.1) 100%)}
.hero-grid-overlay{position:absolute;inset:0;background-image:repeating-linear-gradient(0deg,transparent,transparent 60px,rgba(55,138,221,.04) 60px,rgba(55,138,221,.04) 61px),repeating-linear-gradient(90deg,transparent,transparent 60px,rgba(55,138,221,.04) 60px,rgba(55,138,221,.04) 61px)}
.hero-bg-num{position:absolute;right:-1rem;top:50%;transform:translateY(-50%);font-family:'Bebas Neue',sans-serif;font-size:40vw;line-height:1;color:rgba(55,138,221,.06);user-select:none;pointer-events:none}
.hero-content{position:relative;z-index:2;padding:0 4rem 5rem}
.hero-eyebrow{display:flex;align-items:center;gap:1rem;margin-bottom:1.2rem}
.hero-line{width:48px;height:2px;background:var(--bright)}
.hero-eyebrow span{font-size:.65rem;letter-spacing:.28em;text-transform:uppercase;color:var(--light);font-weight:400}
.hero h1{font-family:'Bebas Neue',sans-serif;font-size:clamp(5rem,11vw,10rem);line-height:.88;letter-spacing:.03em;color:#fff;margin-bottom:1rem}
.hero h1 .blue{color:var(--bright)}
.hero-slogan{font-size:.95rem;font-style:italic;font-weight:300;color:var(--pale);letter-spacing:.1em;border-left:3px solid var(--bright);padding-left:1rem;margin-bottom:2.5rem;display:inline-block}
.btns{display:flex;gap:1rem;flex-wrap:wrap}
.btn-p{background:var(--bright);color:#fff;padding:.85rem 2rem;text-decoration:none;font-size:.75rem;letter-spacing:.18em;text-transform:uppercase;font-weight:500;border-radius:2px;transition:background .2s;border:none;cursor:pointer;display:inline-block}
.btn-p:hover{background:var(--mid)}
.btn-o{border:1.5px solid rgba(181,212,244,.45);color:var(--pale);padding:.85rem 2rem;text-decoration:none;font-size:.75rem;letter-spacing:.18em;text-transform:uppercase;border-radius:2px;transition:all .2s;display:inline-block}
.btn-o:hover{border-color:var(--pale);color:#fff}

/* PAGE HERO (sous-pages) */
.page-hero{position:relative;background:var(--deep);padding:9rem 4rem 4rem;overflow:hidden}
.page-hero::before{content:attr(data-num);position:absolute;right:1rem;top:50%;transform:translateY(-50%);font-family:'Bebas Neue',sans-serif;font-size:16rem;color:rgba(55,138,221,.08);line-height:1;user-select:none}
.page-hero-eyebrow{display:flex;align-items:center;gap:1rem;margin-bottom:1.2rem;position:relative;z-index:1}
.page-hero-eyebrow span{font-size:.65rem;letter-spacing:.28em;text-transform:uppercase;color:var(--light)}
.page-hero h1{font-family:'Bebas Neue',sans-serif;font-size:clamp(3rem,7vw,6rem);line-height:.92;letter-spacing:.03em;color:#fff;position:relative;z-index:1}
.page-hero p{color:var(--pale);font-size:.95rem;font-weight:300;max-width:560px;margin-top:1.2rem;line-height:1.8;position:relative;z-index:1}

/* INTRO STRIP */
.strip{background:var(--bright);padding:1.2rem 4rem;display:flex;align-items:center;gap:3rem;flex-wrap:wrap}
.strip-item{display:flex;align-items:center;gap:.75rem}
.strip-num{font-family:'Bebas Neue',sans-serif;font-size:2rem;color:#fff;line-height:1}
.strip-label{font-size:.7rem;letter-spacing:.15em;text-transform:uppercase;color:rgba(255,255,255,.8);font-weight:300;line-height:1.4}
.strip-sep{width:1px;height:36px;background:rgba(255,255,255,.3)}

/* SECTION HEADER */
.sec-head{display:flex;align-items:flex-end;gap:1.5rem;margin-bottom:3rem}
.sec-tag{font-size:.62rem;letter-spacing:.3em;text-transform:uppercase;color:var(--bright);font-weight:500;writing-mode:vertical-rl;transform:rotate(180deg)}
.sec-title{font-family:'Bebas Neue',sans-serif;font-size:clamp(2.8rem,5vw,5rem);line-height:.92;letter-spacing:.04em;color:var(--deep)}
.sec-lede{font-size:.95rem;line-height:1.85;color:#2a4a6b;font-weight:300;max-width:640px;margin:-1.5rem 0 3rem}

/* DISCIPLINES */
.disciplines{padding:6rem 4rem;background:var(--white)}
.disc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5px;background:var(--pale)}
.disc-card{background:var(--white);padding:0;position:relative;overflow:hidden}
.disc-img-wrap{height:320px;overflow:hidden}
.disc-img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.disc-card:hover .disc-img-wrap img{transform:scale(1.04)}
.disc-body{padding:2rem 2rem 2.5rem;position:relative}
.disc-num-bg{position:absolute;right:1rem;bottom:0;font-family:'Bebas Neue',sans-serif;font-size:6rem;color:rgba(24,95,165,.06);line-height:1;user-select:none}
.disc-title{font-family:'Bebas Neue',sans-serif;font-size:2.2rem;letter-spacing:.05em;color:var(--deep);margin-bottom:.5rem}
.disc-desc{font-size:.85rem;line-height:1.75;color:#2a4a6b;font-weight:300}
.disc-tag{display:inline-block;font-size:.6rem;letter-spacing:.2em;text-transform:uppercase;color:var(--mid);border:1px solid var(--pale);padding:3px 9px;border-radius:1px;margin-bottom:.75rem}
.disc-features{margin-top:1.2rem;display:flex;flex-direction:column;gap:.5rem}
.disc-features li{font-size:.8rem;color:#2a4a6b;font-weight:300;padding-left:1.2rem;position:relative}
.disc-features li::before{content:'';position:absolute;left:0;top:.55em;width:6px;height:6px;background:var(--bright)}
.disc-cta{margin-top:1.5rem;display:inline-block}
.section-cta{text-align:center;padding:4rem 4rem 6rem;background:var(--white)}
.section-cta p{font-size:.95rem;color:#2a4a6b;font-weight:300;margin-bottom:1.5rem}

/* ABOUT */
.about{background:var(--deep);padding:6rem 4rem;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center;position:relative;overflow:hidden}
.about::before{content:'';position:absolute;inset:0;background-image:repeating-linear-gradient(0deg,transparent,transparent 40px,rgba(55,138,221,.03) 40px,rgba(55,138,221,.03) 41px),repeating-linear-gradient(90deg,transparent,transparent 40px,rgba(55,138,221,.03) 40px,rgba(55,138,221,.03) 41px)}
.about-img{position:relative;z-index:1}
.about-img img{width:100%;height:520px;object-fit:cover;object-position:center top;display:block}
.about-img-accent{position:absolute;bottom:-1.5rem;right:-1.5rem;width:60%;height:60%;border:3px solid var(--bright);z-index:-1}
.about-text{position:relative;z-index:1}
.about .sec-title{color:#fff}
.about .sec-tag{color:var(--light)}
.about-body{font-size:.95rem;line-height:1.9;color:var(--pale);font-weight:300;margin-top:2rem}
.about-body p+p{margin-top:1.1rem}
.badge-1pct{display:inline-flex;align-items:baseline;gap:.75rem;background:var(--mid);padding:1.25rem 1.75rem;margin-top:2.5rem;border-left:4px solid var(--bright)}
.badge-big{font-family:'Bebas Neue',sans-serif;font-size:3.5rem;color:#fff;line-height:1}
.badge-small{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--pale);font-weight:300;max-width:90px;line-height:1.5}
.creds{margin-top:2.5rem;display:flex;flex-direction:column;gap:.75rem}
.creds li{font-size:.85rem;color:var(--pale);font-weight:300;padding-left:1.4rem;position:relative}
.creds li::before{content:'✓';position:absolute;left:0;color:var(--bright);font-weight:700}

/* PROGRAMMES */
.programmes{padding:6rem 4rem;background:var(--ghost)}
.prog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.prog-card{background:#fff;padding:2.5rem 2rem;border-top:3px solid var(--bright);display:flex;flex-direction:column;gap:1.2rem}
.prog-icon{width:52px;height:52px;border-radius:50%;background:var(--ghost);display:flex;align-items:center;justify-content:center;color:var(--bright)}
.prog-icon svg{width:24px;height:24px}
.prog-title{font-family:'Bebas Neue',sans-serif;font-size:1.7rem;letter-spacing:.04em;color:var(--deep)}
.prog-desc{font-size:.85rem;line-height:1.75;color:#2a4a6b;font-weight:300;flex:1}
.prog-features{display:flex;flex-direction:column;gap:.5rem}
.prog-features li{font-size:.78rem;color:#2a4a6b;font-weight:300;padding-left:1.1rem;position:relative}
.prog-features li::before{content:'';position:absolute;left:0;top:.5em;width:5px;height:5px;background:var(--bright)}

/* TARIFS */
.tarifs{padding:6rem 4rem;background:var(--white)}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;align-items:stretch}
.price-card{background:#fff;border:1px solid var(--pale);padding:2.5rem 2rem;display:flex;flex-direction:column;position:relative}
.price-card.featured{background:var(--deep);border-color:var(--deep);color:#fff;transform:translateY(-12px)}
.price-flag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--bright);color:#fff;font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;padding:.35rem 1rem}
.price-name{font-family:'Bebas Neue',sans-serif;font-size:1.6rem;letter-spacing:.05em;margin-bottom:.5rem}
.price-card.featured .price-name{color:#fff}
.price-card:not(.featured) .price-name{color:var(--deep)}
.price-amount{font-family:'Bebas Neue',sans-serif;font-size:3.2rem;line-height:1;margin-bottom:.25rem}
.price-amount span{font-family:'DM Sans',sans-serif;font-size:.9rem;font-weight:300;letter-spacing:.05em}
.price-card:not(.featured) .price-amount{color:var(--mid)}
.price-desc{font-size:.8rem;font-weight:300;margin-bottom:1.5rem;opacity:.85}
.price-features{display:flex;flex-direction:column;gap:.65rem;flex:1;margin-bottom:1.75rem}
.price-features li{font-size:.82rem;font-weight:300;padding-left:1.2rem;position:relative}
.price-features li::before{content:'✓';position:absolute;left:0;color:var(--bright);font-weight:700}
.price-note{text-align:center;font-size:.8rem;color:#2a4a6b;font-weight:300;margin-top:2.5rem;font-style:italic}

/* CONTACT */
.contact{padding:6rem 4rem;background:var(--ghost)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem}
.contact-grid.no-form{grid-template-columns:1fr;max-width:460px;margin:0 auto}
.contact-info{display:flex;flex-direction:column;gap:1.75rem}
.info-item{display:flex;gap:1rem;align-items:flex-start}
.info-icon{width:38px;height:38px;background:var(--deep);color:var(--bright);border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.info-icon svg{width:18px;height:18px}
.info-label{font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;color:var(--mid);margin-bottom:.2rem}
.info-value{font-size:.95rem;color:var(--deep);font-weight:400}
.social-row{display:flex;gap:.75rem;margin-top:1rem}
.social-row a{width:38px;height:38px;border:1px solid var(--pale);border-radius:50%;display:flex;align-items:center;justify-content:center;text-decoration:none;color:var(--mid);transition:all .2s}
.social-row a:hover{background:var(--bright);border-color:var(--bright);color:#fff}
.contact-form{background:#fff;padding:2.5rem;display:flex;flex-direction:column;gap:1.25rem}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
.form-group{display:flex;flex-direction:column;gap:.4rem}
.form-group label{font-size:.65rem;letter-spacing:.15em;text-transform:uppercase;color:var(--mid);font-weight:500}
.form-group input,.form-group textarea{border:1px solid var(--pale);padding:.75rem .9rem;font-family:'DM Sans',sans-serif;font-size:.9rem;color:var(--deep);background:var(--white);border-radius:2px}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--bright)}
.form-group textarea{resize:vertical;min-height:120px}
.field-error{font-size:.72rem;color:#c0392b}
.form-success{background:var(--mid);color:#fff;padding:1.25rem 1.5rem;border-left:4px solid var(--bright);font-size:.9rem}

/* CTA BAND */
.cta-band{background:var(--mid);padding:5rem 4rem;text-align:center;position:relative;overflow:hidden}
.cta-band::before{content:'1%';position:absolute;font-family:'Bebas Neue',sans-serif;font-size:35vw;color:rgba(255,255,255,.04);top:50%;left:50%;transform:translate(-50%,-50%);line-height:1;user-select:none;letter-spacing:-.05em}
.cta-band h2{font-family:'Bebas Neue',sans-serif;font-size:clamp(2.5rem,6vw,5.5rem);color:#fff;letter-spacing:.06em;position:relative;z-index:1;margin-bottom:.5rem}
.cta-band p{color:var(--pale);font-size:.9rem;font-style:italic;font-weight:300;letter-spacing:.08em;position:relative;z-index:1;margin-bottom:2.5rem}
.cta-band .btn-p{position:relative;z-index:1;font-size:.8rem}

/* FOOTER */
footer{background:var(--deep);padding:2.5rem 4rem;display:flex;justify-content:space-between;align-items:center;border-top:1px solid rgba(55,138,221,.12);flex-wrap:wrap;gap:1.5rem}
footer .logo{font-size:1.35rem}
footer p{font-size:.72rem;color:var(--light);font-weight:300;letter-spacing:.08em}
.footer-links{display:flex;gap:1.5rem}
.footer-links a{font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--pale);text-decoration:none}
.footer-links a:hover{color:#fff}

/* RESPONSIVE */
@media (max-width:960px){
  .disc-grid,.about,.prog-grid,.price-grid,.contact-grid{grid-template-columns:1fr}
  .price-card.featured{transform:none}
}
@media (max-width:800px){
  nav{padding:1rem 1.5rem}
  nav ul{position:fixed;top:64px;left:0;right:0;flex-direction:column;background:var(--deep);padding:1.5rem;gap:1.25rem;align-items:flex-start;transform:translateY(-150%);transition:transform .25s ease;box-shadow:0 12px 24px rgba(0,0,0,.25)}
  nav ul.open{transform:translateY(0)}
  .nav-toggle{display:flex}
  .hero-content,.disciplines,.about,.programmes,.tarifs,.contact,.cta-band,.page-hero,.section-cta,footer{padding-left:1.5rem;padding-right:1.5rem}
  .form-row{grid-template-columns:1fr}
}