/* ============================================================
   KM Patrimoine — Design system (site.css) — v2 SOMBRE
   Bleu métallique DOMINANT, blanc en simple touche.
   Reproduction fidèle de l'identité KM (sphère réseau + monogramme).
   Titres : Poppins · Corps : Inter.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');

/* ---------- Tokens ---------- */
:root{
  --navy-900:#0A1A33;    /* fond le plus sombre */
  --navy-800:#0C2145;    /* fond sections */
  --navy-700:#12305F;    /* panneaux */
  --bleu-electrique:#2E7BEB;
  --bleu-clair:#6FB1F0;
  --bleu-ciel:#A9CCF5;
  --bleu-roi:#16357A;
  --blanc:#FFFFFF;
  --blanc-lacte:#F4F7FB;
  --texte:#E9F0FA;       /* texte clair sur fond sombre */
  --texte-dim:#A9BBD6;   /* texte secondaire */
  --line:rgba(169,204,245,.18);

  --grad-metal:linear-gradient(135deg,#12305F 0%,#0C2145 55%,#0A1A33 100%);
  --grad-cta:linear-gradient(135deg,#2E7BEB 0%,#16357A 100%);
  --shadow-md:0 18px 40px rgba(0,0,0,.35);
  --shadow-lg:0 28px 70px rgba(0,0,0,.45);
  --ring:0 0 0 4px rgba(46,123,235,.35);

  --font-titre:'Poppins',system-ui,sans-serif;
  --font-corps:'Inter',system-ui,sans-serif;
  --wrap:1160px; --radius:16px; --radius-sm:10px;
  --sp-5:48px; --sp-6:76px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-corps);
  color:var(--texte);
  background:var(--navy-900);
  line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--bleu-ciel);text-decoration:none;transition:color .18s}
a:hover{color:#fff}
ul{list-style:none}

/* ---------- Typo ---------- */
h1,h2,h3,h4{font-family:var(--font-titre);color:#fff;line-height:1.14;letter-spacing:-.01em;font-weight:600}
h1{font-size:clamp(2.1rem,5vw,3.5rem);font-weight:700}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem)}
h3{font-size:clamp(1.15rem,2vw,1.45rem)}
.lead{font-size:clamp(1.05rem,1.6vw,1.28rem);color:var(--texte-dim);line-height:1.6}
.eyebrow{font-family:var(--font-titre);font-weight:600;font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;color:var(--bleu-clair)}
.text-center{text-align:center}

/* ---------- Layout ---------- */
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.wrap-narrow{max-width:800px;margin:0 auto;padding:0 24px}
.section{padding:var(--sp-6) 0;position:relative}
/* fond métallique sombre couvrant toute la hauteur (pas de fixed → robuste) */
body{background:
  radial-gradient(1100px 620px at 82% 0,rgba(46,123,235,.16),transparent 62%) no-repeat,
  linear-gradient(180deg,#12305F 0,#0C2145 760px,#0A1A33 1700px) no-repeat,
  #0A1A33;
}
.section-tint{background:rgba(255,255,255,.03);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin:0 auto var(--sp-5);text-align:center}
.section-head .lead{margin-top:14px}

/* ---------- LA touche blanche (bandeau clair, rare) ---------- */
.section-light{background:var(--blanc-lacte);color:var(--bleu-roi);padding:44px 0;text-align:center}
.section-light p{color:var(--bleu-roi);font-family:var(--font-titre);font-weight:500;font-size:clamp(1.05rem,2vw,1.35rem);max-width:900px;margin:0 auto}

/* ---------- Boutons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;cursor:pointer;font-family:var(--font-titre);font-weight:600;font-size:1rem;
  padding:15px 30px;border-radius:999px;border:2px solid transparent;background:var(--grad-cta);color:#fff;
  transition:transform .16s,box-shadow .16s,filter .16s;box-shadow:0 12px 28px rgba(46,123,235,.30)}
.btn:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 18px 38px rgba(46,123,235,.42);color:#fff}
.btn:focus-visible{outline:none;box-shadow:var(--ring)}
.btn-accent{background:var(--grad-cta)}
.btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.45);color:#fff;box-shadow:none}
.btn-ghost:hover{background:rgba(255,255,255,.14);filter:none}
.btn-outline{background:transparent;border-color:var(--bleu-clair);color:var(--bleu-ciel);box-shadow:none}
.btn-outline:hover{background:var(--bleu-clair);color:var(--navy-900)}
.btn-lg{padding:17px 38px;font-size:1.06rem}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,26,51,.78);backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:50px;width:auto}
.brand-name{font-family:var(--font-titre);font-weight:700;color:#fff;font-size:1.12rem}
.nav{display:flex;align-items:center;gap:28px}
.nav a{font-family:var(--font-titre);font-weight:500;font-size:.97rem;color:var(--texte);position:relative}
.nav a:hover{color:#fff}
.nav a.active{color:var(--bleu-clair)}
.nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--bleu-clair);border-radius:2px}
.nav .btn{padding:11px 22px;box-shadow:none}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;color:#fff}

/* ---------- Bandeau tagline fin ---------- */
.topbar{background:rgba(255,255,255,.04);border-bottom:1px solid var(--line);text-align:center;padding:9px 0;font-family:var(--font-titre);font-size:.85rem;letter-spacing:.06em;color:var(--bleu-ciel)}

/* ---------- Hero (photo + overlay bleu) ---------- */
.hero{position:relative;overflow:hidden;color:#fff;padding:96px 0 80px;
  background:linear-gradient(180deg,rgba(10,26,51,.72),rgba(10,26,51,.86)),var(--hero-img,none);
  background-size:cover;background-position:center}
.hero::after{content:"";position:absolute;inset:0;z-index:1;background:radial-gradient(700px 380px at 80% 15%,rgba(46,123,235,.22),transparent 60%);pointer-events:none}
.hero .wrap{position:relative;z-index:2}
/* Vidéo de fond hero (mer en boucle) + voile de contraste */
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;z-index:0;pointer-events:none}
.hero-scrim{position:absolute;inset:0;z-index:1;background:linear-gradient(95deg,rgba(10,26,51,.30) 0%,rgba(10,26,51,.42) 48%,rgba(10,26,51,.72) 100%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.hero-logo{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;width:100%}
.hero-logo-img{width:100%;max-width:540px;height:auto;filter:drop-shadow(0 0 24px rgba(255,255,255,.92)) drop-shadow(0 0 8px rgba(255,255,255,.8)) drop-shadow(0 3px 10px rgba(0,0,0,.35))}
/* Hero mer : overlay léger (la mer reste bien visible) + dérive lente sur les vagues */
.hero-anim{background:linear-gradient(95deg,rgba(10,26,51,.30) 0%,rgba(10,26,51,.42) 48%,rgba(10,26,51,.72) 100%),var(--hero-img);background-size:cover;background-position:50% 45%;animation:seadrift 24s ease-in-out infinite alternate}
@keyframes seadrift{from{background-position:50% 38%}to{background-position:50% 60%}}
@media(prefers-reduced-motion:reduce){.hero-anim{animation:none}}
.card>img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:10px;margin-top:18px}
.hero h1{color:#fff;text-shadow:0 2px 20px rgba(0,0,0,.4)}
.hero .lead{color:rgba(233,240,250,.92);margin:16px 0 28px;max-width:620px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.hero-sub{margin-top:14px;color:var(--bleu-ciel);font-family:var(--font-titre);font-weight:500}

/* ---------- Tuiles (4 domaines hero) ---------- */
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px;position:relative;z-index:2}
.tile{background:rgba(10,26,51,.55);border:1px solid var(--line);border-radius:14px;padding:22px;backdrop-filter:blur(4px)}
.tile h3{font-size:1.1rem;margin-bottom:8px;color:#fff}
.tile p{color:var(--texte-dim);font-size:.92rem}

/* ---------- Cartes ---------- */
.grid{display:grid;gap:24px}
.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:rgba(255,255,255,.045);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-md);transition:transform .2s,box-shadow .2s,border-color .2s;height:100%}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--bleu-clair)}
.card h3{margin-bottom:10px;color:#fff}
.card p{color:var(--texte-dim)}
.card .card-icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:var(--grad-cta);color:#fff;margin-bottom:18px}
.card .card-icon svg{width:26px;height:26px;stroke:#fff}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-family:var(--font-titre);font-weight:600;font-size:.95rem;color:var(--bleu-clair)}
.card-link svg{width:16px;height:16px;stroke:currentColor;transition:transform .16s}
.card-link:hover{color:#fff}.card-link:hover svg{transform:translateX(4px)}

/* ---------- Solutions Pourquoi : rangées alternées image + texte ---------- */
.sol-list{display:flex;flex-direction:column;gap:48px}
.sol-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.sol-row:nth-child(even) .sol-img{order:2}
.sol-img img{border-radius:18px;width:100%;aspect-ratio:3/2;object-fit:cover;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.12)}
.sol-body h3{margin-bottom:12px}
.sol-body p{color:var(--texte-dim);margin-bottom:16px}
.sol-body .card-link{color:var(--bleu-clair)}
@media(max-width:760px){.sol-row{grid-template-columns:1fr;gap:20px}.sol-row .sol-img{order:0!important}}

/* ---------- Cartes services (image en haut) ---------- */
.svc-card{background:rgba(255,255,255,.045);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);height:100%;transition:transform .2s,box-shadow .2s,border-color .2s;display:flex;flex-direction:column}
.svc-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--bleu-clair)}
.svc-card .ph{aspect-ratio:16/9;overflow:hidden}
.svc-card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.svc-card:hover .ph img{transform:scale(1.05)}
.svc-card .bd{padding:26px;display:flex;flex-direction:column;flex:1}
.svc-card h3{margin-bottom:10px}
.svc-card p{color:var(--texte-dim);flex:1}
.svc-card .card-link{color:var(--bleu-clair);margin-top:16px}

/* ---------- Cartes-image (solutions accueil) ---------- */
.imgcard{border-radius:var(--radius);overflow:hidden;background:rgba(255,255,255,.045);border:1px solid var(--line);box-shadow:var(--shadow-md);transition:transform .2s,box-shadow .2s}
.imgcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.imgcard .ph{aspect-ratio:3/2;overflow:hidden}
.imgcard .ph img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.imgcard:hover .ph img{transform:scale(1.05)}
.imgcard .cap{padding:18px 20px;font-family:var(--font-titre);font-weight:600;color:#fff;text-align:center}

/* ---------- Bandeau confiance ---------- */
.trust{display:flex;flex-wrap:wrap;justify-content:center;gap:14px 34px;color:var(--texte-dim);font-size:.95rem}
.trust span{display:inline-flex;align-items:center;gap:9px}
.trust svg{width:20px;height:20px;stroke:var(--bleu-clair);fill:none}

/* ---------- Étapes ---------- */
.steps{counter-reset:step;display:grid;gap:24px;grid-template-columns:repeat(4,1fr)}
.step{position:relative;padding-top:12px}
.step::before{counter-increment:step;content:counter(step);font-family:var(--font-titre);font-weight:700;font-size:1.05rem;
  width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(46,123,235,.15);border:2px solid var(--bleu-clair);color:#fff;margin-bottom:16px}
.step h3{font-size:1.12rem;margin-bottom:6px}
.step p{color:var(--texte-dim);font-size:.97rem}

/* ---------- Comment ça marche (2 colonnes : image + étapes) ---------- */
.cmt-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.cmt-img img{border-radius:18px;width:100%;aspect-ratio:4/5;object-fit:cover;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.12)}
.cmt-steps>h2{margin-bottom:10px}
.cmt-steps>.lead{margin-bottom:30px}
.cmt-step{display:flex;gap:18px;margin-bottom:24px}
.cmt-step .num{flex:0 0 auto;width:40px;height:40px;border-radius:50%;background:rgba(46,123,235,.15);border:2px solid var(--bleu-clair);color:#fff;font-family:var(--font-titre);font-weight:700;display:flex;align-items:center;justify-content:center}
.cmt-step b{font-family:var(--font-titre);color:#fff;display:block;margin-bottom:5px;font-size:1.05rem}
.cmt-step p{color:var(--texte-dim);font-size:.97rem}
@media(max-width:760px){.cmt-grid{grid-template-columns:1fr;gap:30px}.cmt-img img{aspect-ratio:16/10}}

/* ---------- Colonnes conseillers ---------- */
.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.col h3{font-size:1.12rem;margin-bottom:8px;color:#fff}
.col p{color:var(--texte-dim);font-size:.97rem}

/* ---------- CTA final ---------- */
.cta-band{background:var(--grad-cta);color:#fff;border-radius:26px;padding:56px 40px;text-align:center;position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.14)}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 80% 10%,rgba(169,204,245,.28),transparent 60%)}
.cta-band>*{position:relative;z-index:2}
.cta-band h2{color:#fff}.cta-band .lead{color:rgba(255,255,255,.92);margin:14px auto 28px;max-width:560px}

/* ---------- Section confiance (fond photo montagne) ---------- */
.confiance{position:relative;background-size:cover;background-position:center;overflow:hidden}
.confiance::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,26,51,.72),rgba(10,26,51,.84))}
.confiance>.wrap{position:relative;z-index:2}
.confiance .section-head h2{text-shadow:0 2px 18px rgba(0,0,0,.4)}
.conf-col{text-align:center}
.conf-col h3{margin-bottom:14px}
.conf-col p{color:#dbe6f5;margin-bottom:22px}
.conf-col img{border-radius:16px;width:100%;aspect-ratio:16/9;object-fit:cover;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.12)}

/* ---------- Bande photo pleine largeur ---------- */
.photoband{height:340px;background-size:cover;background-position:center;position:relative}
.photoband::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,26,51,.35),rgba(10,26,51,.65))}

/* ---------- FAQ ---------- */
.faq-item{background:rgba(255,255,255,.045);border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:14px;overflow:hidden}
.faq-item summary{cursor:pointer;list-style:none;padding:22px 26px;font-family:var(--font-titre);font-weight:600;color:#fff;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.5rem;color:var(--bleu-clair);transition:transform .2s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 26px 22px;color:var(--texte-dim)}

/* ---------- Formulaire ---------- */
.field{margin-bottom:18px}
.field label{display:block;font-family:var(--font-titre);font-weight:500;font-size:.95rem;margin-bottom:7px;color:var(--texte)}
.field input,.field select,.field textarea{width:100%;padding:13px 15px;font-family:var(--font-corps);font-size:1rem;color:#fff;
  background:rgba(255,255,255,.06);border:1.5px solid var(--line);border-radius:var(--radius-sm);transition:border-color .16s,box-shadow .16s}
.field input::placeholder,.field textarea::placeholder{color:var(--texte-dim)}
.field select option{color:#111}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--bleu-electrique);box-shadow:var(--ring)}
.field textarea{resize:vertical;min-height:120px}

/* ---------- Note / encart ---------- */
.note{background:rgba(46,123,235,.10);border:1px solid var(--line);border-left:4px solid var(--bleu-electrique);border-radius:10px;padding:16px 20px;color:var(--texte-dim);font-size:.92rem}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-line{display:flex;align-items:flex-start;gap:14px;margin-bottom:20px}
.contact-line svg{width:22px;height:22px;stroke:var(--bleu-clair);fill:none;flex:0 0 auto;margin-top:3px}
.contact-line b{font-family:var(--font-titre);color:#fff;display:block;font-size:.95rem}
.panel{background:rgba(255,255,255,.045);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-md)}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-900);border-top:1px solid var(--line);color:var(--texte-dim);padding:var(--sp-5) 0 26px}
.site-footer a{color:var(--texte-dim)}.site-footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;margin-bottom:34px}
.footer-brand .brand-name{color:#fff}
.footer-brand p{color:var(--texte-dim);font-size:.92rem;margin-top:12px;max-width:320px}
.footer-col h4{color:#fff;font-size:.98rem;margin-bottom:14px}
.footer-col ul li{margin-bottom:9px}.footer-col a{font-size:.94rem}
.footer-bottom{border-top:1px solid var(--line);padding-top:22px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:.86rem;color:var(--texte-dim)}
.footer-bottom a{margin-left:18px}

/* ---------- Simulateur ---------- */
.sim-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.sim-panel{background:rgba(255,255,255,.045);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-md)}
.sim-result{background:rgba(46,123,235,.10);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-md)}
.sim-metric{margin-bottom:22px}
.sim-metric .sim-label{font-family:var(--font-titre);font-weight:500;color:var(--texte-dim);font-size:.9rem}
.sim-metric .sim-value{font-family:var(--font-titre);font-weight:700;font-size:2rem;color:#fff;font-variant-numeric:tabular-nums}
.sim-value.accent{color:var(--bleu-clair)}
.sim-bar{height:12px;border-radius:8px;background:rgba(255,255,255,.10);overflow:hidden;display:flex;margin-top:8px}
.sim-bar .seg-verse{background:var(--bleu-ciel)}.sim-bar .seg-interet{background:var(--bleu-electrique)}
.sim-legend{display:flex;gap:20px;margin-top:12px;font-size:.86rem;color:var(--texte-dim)}
.sim-legend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:6px;vertical-align:middle}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:960px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .tiles{grid-template-columns:repeat(2,1fr)}
  .cols3{grid-template-columns:1fr;gap:22px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-grid{grid-template-columns:1fr;gap:24px}
  .hero-logo{flex-direction:row;justify-content:center}
}
@media(max-width:760px){
  body{font-size:16px}
  .nav{display:none}.nav-toggle{display:inline-flex}
  .section{padding:var(--sp-5) 0}
  .grid-2,.grid-3,.grid-4,.steps,.tiles,.sim-wrap,.contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:40px 24px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}