/* =========================================================================
   Massalia Smart Campus — style principal
   Charte : Bleu Massalia #282F6A · Or #BE9D56 · Bleu secondaire #2E6E96
   Type   : Cinzel (display) · Montserrat (texte)
   Signature : « ligne de bus » — fil d'or à nœuds carrés (réf. bus KNX)
   ========================================================================= */

:root{
  --navy:      #282F6A;
  --navy-900:  #171B3E;
  --navy-700:  #333C82;
  --or:        #BE9D56;
  --or-clair:  #D8BC82;
  --bleu:      #2E6E96;
  --bleu-clair:#4E8FB8;

  --papier:    #F7F6F3;
  --papier-2:  #EFEDE7;
  --encre:     #1B2536;
  --muet:      #5A6478;
  --ligne:     #E2DFD7;
  --blanc:     #FFFFFF;

  --r:         6px;
  --wrap:      1140px;
  --pas:       clamp(3.5rem, 7vw, 6.5rem);   /* rythme vertical des sections */
  --ombre:     0 18px 45px -20px rgba(40,47,106,.35);

  --f-titre:   "Cinzel", Georgia, serif;
  --f-texte:   "Montserrat", system-ui, -apple-system, "Segoe UI", sans-serif;
}

/* ---------- Base ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--f-texte);
  font-weight:400;
  color:var(--encre);
  background:var(--papier);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:var(--bleu); text-decoration:none; }
a:hover{ color:var(--navy); }

.wrap{ width:min(var(--wrap), 92%); margin-inline:auto; }

h1,h2,h3{ font-family:var(--f-titre); font-weight:600; line-height:1.15; color:var(--navy); margin:0 0 .6em; }
h1{ font-size:clamp(2rem,4.6vw,3.3rem); letter-spacing:.5px; }
h2{ font-size:clamp(1.55rem,3vw,2.25rem); }
h3{ font-size:1.15rem; letter-spacing:.3px; }
p{ margin:0 0 1.1rem; }

.eyebrow{
  font-family:var(--f-texte);
  font-weight:600; font-size:.72rem; letter-spacing:.22em; text-transform:uppercase;
  color:var(--or); margin:0 0 .9rem;
}
.eyebrow--light{ color:var(--or-clair); }

.skip-link{
  position:absolute; left:-999px; top:0; z-index:200;
  background:var(--navy); color:#fff; padding:.7rem 1.1rem;
}
.skip-link:focus{ left:1rem; top:1rem; color:#fff; }

:focus-visible{ outline:3px solid var(--bleu-clair); outline-offset:2px; }

/* ---------- Signature : ligne de bus KNX ---------- */
/* fil horizontal avec deux nœuds carrés — sert de séparateur/soulignement */
.busline{
  --n:var(--or);
  display:flex; align-items:center; gap:0; height:14px; margin:1.4rem 0;
}
.busline::before{
  content:""; width:9px; height:9px; background:var(--n);
  transform:rotate(45deg); flex:0 0 auto;
}
.busline::after{
  content:""; height:1px; background:var(--n); flex:1 1 auto;
  box-shadow: 90px 0 0 -4px var(--n); /* nœud intermédiaire simulé */
}

/* ---------- En-tête / navigation ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:var(--navy);
  border-bottom:1px solid rgba(190,157,86,.35);
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; min-height:74px; gap:1rem; }

.brand{ display:flex; align-items:center; gap:.75rem; color:#fff; }
.brand:hover{ color:#fff; }
.brand-mark{
  font-family:var(--f-titre); font-weight:700; font-size:1.05rem; letter-spacing:.14em;
  color:var(--navy); background:var(--or);
  width:44px; height:44px; display:grid; place-items:center; border-radius:var(--r);
  flex:0 0 auto;
}
.brand-text{ display:flex; flex-direction:column; line-height:1.1; }
.brand-name{ font-family:var(--f-titre); font-weight:600; font-size:1.02rem; letter-spacing:.04em; color:#fff; }
.brand-sub{ font-size:.7rem; letter-spacing:.12em; text-transform:uppercase; color:var(--or-clair); }

.nav-list{ list-style:none; display:flex; align-items:center; gap:.35rem; margin:0; padding:0; }
.nav-list a{
  display:inline-block; padding:.55rem .85rem;
  color:#D6DCE6; font-size:.9rem; font-weight:500; letter-spacing:.02em;
  border-radius:var(--r); position:relative;
}
.nav-list a:hover{ color:#fff; }
.nav-list a.is-active{ color:#fff; }
.nav-list a.is-active::after{
  content:""; position:absolute; left:.85rem; right:.85rem; bottom:.28rem; height:2px; background:var(--or);
}
.nav-cta{
  background:var(--or); color:var(--navy) !important; font-weight:600 !important;
}
.nav-cta:hover{ background:var(--or-clair); }

.nav-toggle{ display:none; background:none; border:0; width:44px; height:44px; cursor:pointer; }
.nav-toggle span{ display:block; height:2px; width:24px; margin:5px auto; background:#fff; transition:.25s; }

/* ---------- Boutons ---------- */
.btn{
  display:inline-block; font-family:var(--f-texte); font-weight:600; font-size:.92rem;
  letter-spacing:.02em; padding:.85rem 1.5rem; border-radius:var(--r); cursor:pointer;
  border:1px solid transparent; transition:.2s;
}
.btn--or{ background:var(--or); color:var(--navy); }
.btn--or:hover{ background:var(--or-clair); color:var(--navy); }
.btn--ligne{ background:transparent; border-color:rgba(255,255,255,.5); color:#fff; }
.btn--ligne:hover{ border-color:var(--or); color:#fff; }
.btn--navy{ background:var(--navy); color:#fff; }
.btn--navy:hover{ background:var(--navy-700); color:#fff; }
.btn-row{ display:flex; flex-wrap:wrap; gap:.9rem; margin-top:1.6rem; }

/* ---------- Hero ---------- */
.hero{
  position:relative; color:#fff;
  background:
    linear-gradient(180deg, rgba(16,31,56,.72), rgba(16,31,56,.9)),
    var(--navy);
  background-size:cover; background-position:center;
  overflow:hidden;
}
.hero--photo{
  background:
    linear-gradient(180deg, rgba(16,31,56,.68), rgba(16,31,56,.92)),
    url("/assets/img/smart_massilia.jpg") center/cover no-repeat, var(--navy);
}
.hero-inner{ padding: clamp(4rem,9vw,7.5rem) 0 clamp(3.5rem,7vw,6rem); max-width:760px; }
.hero h1{ color:#fff; }
.hero p.lead{ font-size:1.14rem; color:#E4E8EF; max-width:56ch; }
.hero .busline{ --n:var(--or); max-width:340px; }

.hero-facts{
  display:flex; flex-wrap:wrap; gap:2.2rem; margin-top:2.4rem;
  border-top:1px solid rgba(255,255,255,.15); padding-top:1.6rem;
}
.hero-facts .f-num{ font-family:var(--f-titre); font-size:1.7rem; color:var(--or-clair); display:block; }
.hero-facts .f-lab{ font-size:.78rem; letter-spacing:.1em; text-transform:uppercase; color:#C6CEDA; }

/* ---------- Sections ---------- */
.section{ padding:var(--pas) 0; }
.section--alt{ background:var(--papier-2); }
.section--navy{ background:var(--navy); color:#EAEEF4; }
.section--navy h2{ color:#fff; }
.section-head{ max-width:60ch; margin-bottom:2.4rem; }
.section--center .section-head{ margin-inline:auto; text-align:center; }
.section--center .section-head .busline{ margin-inline:auto; max-width:280px; }

.lead-lg{ font-size:1.12rem; color:var(--muet); }
.section--navy .lead-lg{ color:#C6CEDA; }

/* ---------- Grilles de cartes ---------- */
.grid{ display:grid; gap:1.4rem; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }

.card{
  background:var(--blanc); border:1px solid var(--ligne); border-radius:var(--r);
  padding:1.6rem 1.5rem; box-shadow:0 1px 0 rgba(40,47,106,.03);
}
.card--flush{ padding:0; overflow:hidden; }
.card h3{ margin-bottom:.5rem; }
.card p:last-child{ margin-bottom:0; }
.card .idx{
  font-family:var(--f-titre); font-size:.85rem; color:var(--or); letter-spacing:.15em;
  display:block; margin-bottom:.7rem;
}
.card--dark{ background:var(--navy-700); border-color:rgba(190,157,86,.25); color:#E4E8EF; }
.card--dark h3{ color:#fff; }

/* ---------- Liste modules / features ---------- */
.feature-list{ list-style:none; margin:0; padding:0; display:grid; gap:.85rem; }
.feature-list li{ position:relative; padding-left:1.6rem; }
.feature-list li::before{
  content:""; position:absolute; left:0; top:.55em; width:7px; height:7px;
  background:var(--or); transform:rotate(45deg);
}

/* ---------- Bandeau split (image + texte) ---------- */
.split{ display:grid; grid-template-columns:1.05fr .95fr; gap:0; align-items:stretch; }
.split-media{ min-height:340px; background:center/cover no-repeat var(--navy); }
.split-body{ padding:clamp(2rem,4vw,3.5rem); }
.split--alt .split-body{ background:var(--papier-2); }

/* ---------- Chiffres clés ---------- */
.stats{ display:grid; grid-template-columns:repeat(4,1fr); gap:1.4rem; text-align:center; }
.stat .n{ font-family:var(--f-titre); font-size:2.1rem; color:var(--or); display:block; }
.stat .l{ font-size:.82rem; letter-spacing:.08em; text-transform:uppercase; color:var(--muet); }
.section--navy .stat .l{ color:#C6CEDA; }

/* ---------- Timeline / parcours ---------- */
.timeline{ display:grid; gap:1.1rem; }
.timeline .step{
  display:grid; grid-template-columns:auto 1fr; gap:1.1rem; align-items:start;
}
.timeline .dot{
  font-family:var(--f-titre); font-weight:700; color:var(--navy); background:var(--or);
  width:38px; height:38px; border-radius:50%; display:grid; place-items:center; font-size:.9rem;
}
.timeline .step h3{ margin-bottom:.2rem; }

/* ---------- CTA final ---------- */
.cta-band{ background:var(--navy); color:#fff; text-align:center; padding:var(--pas) 0; }
.cta-band h2{ color:#fff; }
.cta-band p{ color:#C6CEDA; max-width:52ch; margin-inline:auto; }

/* ---------- Contact / accès ---------- */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:2.4rem; }
.info-list{ list-style:none; margin:0; padding:0; display:grid; gap:1.1rem; }
.info-list .lab{ font-size:.74rem; letter-spacing:.12em; text-transform:uppercase; color:var(--or); display:block; }
.info-list a{ color:var(--navy); font-weight:500; }
.map-embed{ border:1px solid var(--ligne); border-radius:var(--r); overflow:hidden; min-height:320px; background:var(--papier-2); }
.map-embed iframe{ width:100%; height:100%; min-height:320px; border:0; display:block; }

.notice{
  border-left:3px solid var(--or); background:#fff; border-radius:0 var(--r) var(--r) 0;
  padding:1rem 1.2rem; color:var(--muet); font-size:.92rem;
}

/* badge « à venir » */
.badge{
  display:inline-block; font-size:.7rem; font-weight:600; letter-spacing:.12em; text-transform:uppercase;
  color:var(--navy); background:var(--or-clair); padding:.25rem .6rem; border-radius:100px; margin-left:.5rem;
  vertical-align:middle;
}

/* ---------- Footer ---------- */
.site-footer{ background:var(--navy-900); color:#C6CEDA; padding-top:var(--pas); }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1.1fr; gap:2rem; padding-bottom:2.8rem; }
.brand-mark--footer{ margin-bottom:1rem; }
.footer-name{ font-family:var(--f-titre); color:#fff; font-size:1.1rem; margin:.2rem 0 .4rem; }
.footer-muted{ font-size:.85rem; color:#9AA6B8; margin:.2rem 0; }
.footer-title{ color:var(--or-clair); font-size:.78rem; letter-spacing:.14em; text-transform:uppercase; font-family:var(--f-texte); }
.footer-list{ list-style:none; margin:.6rem 0 0; padding:0; display:grid; gap:.5rem; font-size:.9rem; }
.footer-list a{ color:#C6CEDA; }
.footer-list a:hover{ color:#fff; }
.footer-partners{ font-size:.9rem; color:#9AA6B8; line-height:1.9; }
.footer-bar{ border-top:1px solid rgba(255,255,255,.08); padding:1.2rem 0; }
.footer-bar-inner{ display:flex; justify-content:space-between; gap:1rem; flex-wrap:wrap; font-size:.78rem; color:#7E8AA0; }

/* ---------- Responsive ---------- */
@media (max-width: 860px){
  .grid-3,.grid-4{ grid-template-columns:repeat(2,1fr); }
  .split{ grid-template-columns:1fr; }
  .split-media{ min-height:240px; }
  .stats{ grid-template-columns:repeat(2,1fr); }
  .contact-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }

  .nav-toggle{ display:block; }
  .nav{
    position:absolute; left:0; right:0; top:74px; background:var(--navy);
    border-bottom:1px solid rgba(190,157,86,.35);
    max-height:0; overflow:hidden; transition:max-height .3s ease;
  }
  .nav.open{ max-height:420px; }
  .nav-list{ flex-direction:column; align-items:stretch; padding:.6rem 4%; gap:0; }
  .nav-list a{ padding:.9rem .4rem; border-bottom:1px solid rgba(255,255,255,.06); }
  .nav-list a.is-active::after{ display:none; }
  .nav-cta{ margin-top:.6rem; text-align:center; }
}

@media (max-width: 520px){
  .grid-2,.grid-3,.grid-4{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .hero-facts{ gap:1.4rem; }
}

@media (prefers-reduced-motion: reduce){
  *{ animation:none !important; transition:none !important; scroll-behavior:auto !important; }
}

/* ---------- Bande de logos partenaires ---------- */
.section--logos{ padding:clamp(2.6rem,5vw,4rem) 0; }
.section--logos .eyebrow{ margin-bottom:1.8rem; }
.partners-strip{
  display:flex; flex-wrap:wrap; align-items:center; justify-content:center;
  gap:2.4rem 3rem;
}
.partners-strip .plogo{ display:flex; align-items:center; justify-content:center; }
.partners-strip .plogo img{
  max-height:56px; max-width:160px; width:auto; height:auto;
  object-fit:contain; filter:grayscale(100%); opacity:.72; transition:.25s;
}
.partners-strip .plogo img:hover{ filter:grayscale(0); opacity:1; }
.section--navy .partners-strip .plogo img{ filter:grayscale(100%) brightness(0) invert(1); opacity:.85; }
.section--navy .partners-strip .plogo img:hover{ filter:none; opacity:1; }

/* Liens légaux du pied de page */
.footer-bar a{ color:var(--or-clair); }
.footer-bar a:hover{ color:#fff; }

/* Section financement (formation) */
.fin-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(210px,1fr)); gap:1.1rem; margin-top:2rem; }
.card--dark h3{ color:#fff; }
.fin-note{ color:#9AA6B8; font-size:.82rem; line-height:1.55; margin-top:1.6rem; }

/* Formulaire de contact */
.contact-form-wrap{ max-width:720px; margin:0 auto; background:#fff; border:1px solid var(--ligne);
  border-radius:calc(var(--r) + 4px); padding:2.4rem clamp(1.2rem,4vw,2.6rem); box-shadow:var(--ombre); }
.contact-form-wrap .eyebrow{ margin-bottom:.2rem; }
.contact-form-wrap > h2{ margin-top:0; margin-bottom:1.6rem; }
.contact-form{ display:flex; flex-direction:column; gap:1.15rem; }
.contact-form label{ display:block; font-size:.72rem; font-weight:600; letter-spacing:.09em; text-transform:uppercase; color:var(--muet); }
.contact-form input, .contact-form select, .contact-form textarea{
  display:block; width:100%; margin-top:.4rem; padding:.8rem .9rem; font:inherit; color:var(--encre);
  background:#fff; border:1px solid var(--ligne); border-radius:var(--r); transition:border-color .15s, box-shadow .15s; }
.contact-form textarea{ resize:vertical; min-height:130px; }
.contact-form select{ appearance:none; -webkit-appearance:none; padding-right:2.4rem;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%232E6E96' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:right .9rem center; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus{
  outline:none; border-color:var(--bleu); box-shadow:0 0 0 3px rgba(46,110,150,.18); }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:1.15rem; }
@media (max-width:600px){ .form-row{ grid-template-columns:1fr; } }
.contact-form .hp{ position:absolute !important; left:-9999px !important; width:1px !important; height:1px !important; overflow:hidden !important; }
.form-consent{ font-size:.78rem; color:var(--muet); margin:.2rem 0 .4rem; }
.contact-form .btn{ align-self:flex-start; }
.form-ok{ background:#EAF6EE; border:1px solid #BFE3CB; color:#1E6B3A; padding:1rem 1.2rem; border-radius:var(--r); }
.form-err{ background:#FBEDED; border:1px solid #E6C3C3; color:#9A2B2B; padding:.8rem 1rem; border-radius:var(--r); margin-bottom:1rem; }

/* Espaces connectés */
.espace-public{ display:inline-block; font-size:.7rem; letter-spacing:.1em; text-transform:uppercase; color:var(--bleu); background:#EAEEF4; padding:.2rem .6rem; border-radius:100px; margin-bottom:.6rem; }
.espace-card{ display:flex; flex-direction:column; }