/* ============================================================
   Société de Gestion Leblanc — feuille de style partagée (pages internes)
   Palette du site original : BLEU ROYAL (icônes, accents, bande) + BLEU MARINE (en-tête, pied, sombre)
   Typographie : Fraunces (titres) + Inter (corps)
   ============================================================ */
/* Polices : Google Fonts via <link> dans chaque page ; repli local ci-dessous */
@font-face{font-family:'FrauncesLocal';font-style:italic;font-weight:400 700;font-display:swap;src:url('../fonts/fraunces-italic.woff2') format('woff2')}
@font-face{font-family:'FrauncesLocal';font-style:normal;font-weight:400 700;font-display:swap;src:url('../fonts/fraunces-normal.woff2') format('woff2')}
@font-face{font-family:'InterLocal';font-style:normal;font-weight:400 700;font-display:swap;src:url('../fonts/inter-normal.woff2') format('woff2')}

:root{
  color-scheme: only light;
  --bg:#fbfbfb; --paper:#ffffff; --mist:#eef2f8;
  --ink:#1c2230; --ink-soft:#46505f; --ink-faint:#9aa3b0;
  --border:#dcdfe6;
  --royal:#1657b0; --royal-deep:#0f3f86; --royal-soft:#e9f0fb; --royal-bright:#2f8fe0;
  --navy:#13294d; --navy-2:#1c3a66;
  /* alias hérités (anciennes règles) -> nouvelle palette bleu/marine */
  --sky:#1657b0; --sky-soft:#8fc1ee; --dark:#13294d; --dark-2:#1c3a66;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter','InterLocal',system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;font-size:17px;overflow-x:hidden}
h1,h2,h3,.serif{font-family:'Fraunces','FrauncesLocal',Georgia,serif;font-weight:600;line-height:1.08;letter-spacing:-.015em}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- En-tête (bleu marine) ---------- */
header{position:fixed;top:0;left:0;right:0;z-index:90;transition:transform .5s var(--ease),background .4s,box-shadow .4s,border-color .4s;border-bottom:1px solid transparent}
header.solid{background:rgba(19,41,77,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-color:rgba(255,255,255,.1);box-shadow:0 10px 36px -18px rgba(0,0,0,.4)}
.nav{display:flex;align-items:center;justify-content:space-between;height:166px}
.brand{display:block;line-height:0}
.brand img{height:152px;width:auto;transition:height .3s}
header.solid .brand img{height:100px}
.brand .lo-dark{display:none}
nav{display:flex;align-items:center;gap:32px}
nav a{text-decoration:none;font-family:'Fraunces','FrauncesLocal',Georgia,serif;font-weight:500;font-size:1.04rem;color:#fff;position:relative;padding:6px 0;transition:color .3s}
nav a:not(.cta)::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--royal-bright);transition:width .35s var(--ease)}
nav a:not(.cta):hover::after{width:100%}
.cta{display:inline-flex;align-items:center;gap:9px;background:linear-gradient(110deg,#0f3f86,#2f8fe0 58%,#1657b0);color:#fff !important;padding:12px 22px;border-radius:99px;font-weight:600;border:1px solid rgba(255,255,255,.28);box-shadow:0 10px 28px -10px rgba(22,87,176,.7);transition:filter .3s}
.cta:hover{filter:brightness(1.08)}
.cta .spark{width:8px;height:8px;border-radius:50%;background:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.25);flex:none}
.cta svg{transition:transform .3s}
.cta:hover svg{transform:translateX(3px)}

/* ---------- Hero de page interne ---------- */
.phero{position:relative;min-height:62vh;display:flex;align-items:flex-end;overflow:hidden;color:#fff}
.phero .bg{position:absolute;inset:-5%;width:110%;height:110%;background-size:cover;background-position:center 38%;animation:pushin 34s ease-in-out infinite alternate}
@keyframes pushin{from{transform:scale(1)}to{transform:scale(1.12)}}
.phero::before{content:"";position:absolute;inset:0;background:linear-gradient(85deg,rgba(13,28,52,.62),rgba(15,32,60,.28) 70%)}
.phero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:55%;background:linear-gradient(to top,rgba(11,23,43,.76),transparent)}
.phero .inner{position:relative;z-index:2;width:100%;padding:170px 0 64px}
.phero .kicker{color:rgba(255,255,255,.82)}
.phero .kicker::before{background:rgba(255,255,255,.6)}
.phero h1{font-size:clamp(2.6rem,6vw,4.6rem);max-width:18ch}
.phero p{margin-top:20px;max-width:620px;color:rgba(255,255,255,.92);font-size:1.12rem}

/* ---------- Sections ---------- */
section{padding:120px 0}
.kicker{color:var(--royal);font-weight:700;text-transform:uppercase;letter-spacing:.18em;font-size:.78rem;display:flex;align-items:center;gap:14px;margin-bottom:20px}
.kicker::before{content:"";width:38px;height:1.5px;background:var(--royal)}
.kicker.center{justify-content:center}.kicker.center::before{display:none}
h2{font-size:clamp(2.1rem,4.4vw,3.4rem);margin-bottom:22px;color:var(--ink)}
.lead{color:var(--ink-soft);max-width:680px;font-size:1.12rem}
.prose p{color:var(--ink-soft);max-width:70ch;margin-bottom:20px;font-size:1.06rem}
.prose p strong{color:var(--ink)}
.center{text-align:center}.center .lead{margin:0 auto}
.split2{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
.media-r{border-radius:22px;overflow:hidden;box-shadow:0 30px 80px -26px rgba(19,41,77,.34)}
.media-r img{width:100%;height:100%;object-fit:cover}

/* ---------- Cartes / atouts ---------- */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:54px}
.card{background:var(--paper);border:1px solid var(--border);border-radius:18px;padding:30px;transition:transform .35s var(--ease),box-shadow .35s}
.card:hover{transform:translateY(-5px);box-shadow:0 24px 60px -26px rgba(19,41,77,.2)}
.card .ic{width:46px;height:46px;border-radius:13px;background:var(--royal-soft);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card .ic svg{stroke:var(--royal)}
.card b{display:block;font-size:1.08rem;margin-bottom:6px;color:var(--ink)}
.card span{color:var(--ink-soft);font-size:.96rem;line-height:1.6}

/* ---------- Boutons ---------- */
.btn{display:inline-flex;align-items:center;gap:11px;padding:17px 32px;border-radius:99px;text-decoration:none;font-family:'Fraunces','FrauncesLocal',Georgia,serif;font-weight:600;font-size:1.04rem;transition:background .3s,color .3s,transform .4s}
.btn-ink{background:var(--navy);color:#fff}.btn-ink:hover{background:var(--navy-2)}
.btn-sky,.btn-royal{background:var(--royal);color:#fff}.btn-sky:hover,.btn-royal:hover{background:var(--royal-bright)}
.btn-line{border:1.5px solid var(--royal);color:var(--royal-deep)}.btn-line:hover{background:var(--royal);color:#fff}

/* ---------- CTA + pied (bleu marine) ---------- */
.fin{padding:0 32px 120px}
.fin-inner{max-width:1200px;margin:0 auto;background:var(--navy);border-radius:34px;color:#fff;text-align:center;padding:92px 40px;position:relative;overflow:hidden}
.fin-inner::before{content:"";position:absolute;width:360px;height:360px;border-radius:50%;border:52px solid rgba(255,255,255,.06);top:-140px;right:-110px}
.fin h2{color:#fff;position:relative;z-index:1}
.fin p{color:rgba(255,255,255,.84);max-width:540px;margin:14px auto 36px;position:relative;z-index:1}
.fin .btn{background:#fff;color:var(--navy);position:relative;z-index:1}
.fin .alt{display:block;margin-top:22px;color:rgba(255,255,255,.8);font-size:.93rem;position:relative;z-index:1}
.fin .alt a{color:#fff;font-weight:700}
footer.site{background:var(--navy);border-top:1px solid var(--navy-2);padding:80px 0 38px;color:rgba(238,243,250,.75);font-size:.94rem}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:46px}
.foot .lo{height:58px;margin-bottom:16px}
.foot h4{font-family:'Inter',sans-serif;font-size:.78rem;text-transform:uppercase;letter-spacing:.14em;color:#fff;margin-bottom:16px}
.foot a{display:block;text-decoration:none;padding:4px 0}
.foot a:hover{color:#fff}
.legal{border-top:1px solid var(--navy-2);margin-top:50px;padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.82rem;color:rgba(238,243,250,.5)}

/* ---------- Pages services : grande image à droite (style site original) ---------- */
.pservice .split2{grid-template-columns:1fr 1.08fr;gap:64px}
.pservice .media-r{height:clamp(420px,54vw,600px)}
.pservice .media-r img{height:100%}
@media(max-width:1020px){.pservice .split2{grid-template-columns:1fr}.pservice .media-r{height:360px}}

/* ---------- Liste à puces (pages services) ---------- */
.ulist{list-style:none;margin:26px 0 0;display:grid;gap:13px}
.ulist li{position:relative;padding-left:32px;color:var(--ink-soft);font-size:1.04rem}
.ulist li svg{position:absolute;left:0;top:4px;stroke:var(--royal)}
.here{display:inline-flex;align-items:center;gap:9px;margin-top:26px;background:var(--royal-soft);border:1px solid #cfe0f5;border-radius:99px;padding:9px 18px;font-size:.86rem;font-weight:600;color:var(--royal-deep)}
.here svg{stroke:var(--royal)}

/* ---------- Bandeau slogan ---------- */
.tagline{background:var(--mist);border-top:1px solid var(--border);border-bottom:1px solid var(--border);text-align:center;padding:74px 0}
.tagline p{font-family:'Fraunces','FrauncesLocal',Georgia,serif;font-style:italic;font-size:clamp(1.6rem,3.4vw,2.6rem);color:var(--ink);max-width:24ch;margin:0 auto;line-height:1.25}

/* ---------- Formulaire de contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:64px;align-items:start}
.cform{display:grid;gap:16px}
.cform label{font-weight:600;font-size:.92rem;color:var(--ink);margin-bottom:-8px}
.cform input,.cform textarea{font-family:inherit;font-size:1rem;color:var(--ink);background:var(--paper);border:1px solid var(--border);border-radius:12px;padding:14px 16px;width:100%;transition:border-color .25s,box-shadow .25s}
.cform input:focus,.cform textarea:focus{outline:none;border-color:var(--royal);box-shadow:0 0 0 3px var(--royal-soft)}
.cform textarea{resize:vertical;min-height:140px}
.cform .submit{display:inline-flex;align-items:center;gap:10px;justify-self:start;margin-top:6px;background:var(--royal);color:#fff;border:none;cursor:pointer;padding:15px 34px;border-radius:99px;font-family:'Fraunces','FrauncesLocal',Georgia,serif;font-weight:600;font-size:1.04rem;transition:background .3s}
.cform .submit:hover{background:var(--royal-bright)}
.cinfo{background:var(--paper);border:1px solid var(--border);border-radius:20px;padding:32px}
.cinfo h3{font-size:1.4rem;margin-bottom:18px}
.cinfo .line{display:flex;align-items:flex-start;gap:13px;padding:13px 0;border-bottom:1px solid var(--border);font-size:.98rem;color:var(--ink-soft)}
.cinfo .line:last-child{border-bottom:none}
.cinfo .line svg{flex:none;margin-top:2px;stroke:var(--royal)}
.cinfo .line a{color:var(--ink);text-decoration:none;font-weight:600}
.cinfo .line a:hover{color:var(--royal)}
@media(max-width:1020px){.contact-grid{grid-template-columns:1fr;gap:40px}}
@media(max-width:980px){
  nav a:not(.cta){display:none}
  .nav{height:118px}
  .brand img{height:104px}
}
@media(max-width:640px){
  .nav{height:88px}
  .brand img{height:70px}
  header.solid .brand img{height:58px}
  .cta{padding:10px 16px;font-size:.92rem}
  section{padding:72px 0}
  .wrap{padding:0 20px}
  .phero{min-height:54vh}
  .phero .inner{padding:118px 0 44px}
  .phero p{font-size:1.04rem}
  .pservice .media-r{height:280px}
}

/* ---------- Apparition en fondu au défilement (JavaScript IntersectionObserver) ---------- */
.rv{opacity:0;transform:translateY(30px);transition:opacity 1.1s var(--ease),transform 1.1s var(--ease);will-change:opacity,transform}
.rv.in{opacity:1;transform:none}
/* Décision projet : on IGNORE prefers-reduced-motion (site vitrine) — les apparitions
   au défilement jouent pour tous, y compris si « Effets d'animation » est désactivé
   dans Windows. Sans risque : la classe .rv n'est ajoutée que par le JS, donc sans
   JS le contenu reste visible (jamais opacity:0). Seul le défilement reste « auto ». */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
}

/* ---------- Responsive ---------- */
@media(max-width:1020px){
  .split2{grid-template-columns:1fr;gap:42px}
  .cards{grid-template-columns:1fr}
  nav a:not(.cta){display:none}
}
@media(max-width:640px){
  section{padding:78px 0}
  .foot{grid-template-columns:1fr;gap:30px}
  .wrap{padding:0 22px}
  .fin{padding:0 20px 84px}
}