/* Messagerie Santé — feuille de style partagée (charte messageriesante.net) */
:root{
  --blue-900:#0f2d63; --blue-700:#1a56db; --blue-500:#3b82f6; --blue-100:#dbeafe; --blue-50:#f0f9ff;
  --teal-600:#0d9488; --teal-100:#d1fae5; --red-500:#e24b4a;
  --gray-900:#1e293b; --gray-600:#475569; --gray-500:#64748b; --gray-200:#e2e8f0; --gray-100:#f1f5f9; --gray-50:#f8fafc;
  --white:#fff;
  --radius-sm:6px; --radius-md:8px; --radius-lg:12px;
  --shadow-sm:0 1px 3px rgba(0,0,0,.06); --shadow-md:0 4px 12px rgba(0,0,0,.08); --shadow-lg:0 12px 32px rgba(15,45,99,.12);
  --font:'Inter','Segoe UI',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--gray-900);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--blue-700);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.wrap{width:100%;max-width:1100px;margin:0 auto;padding:0 24px}
.wrap-narrow{max-width:820px}
section{padding:64px 0}
.eyebrow{font-size:12px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;color:var(--blue-700)}
h2.title{font-size:28px;font-weight:700;letter-spacing:-.5px;margin:8px 0 10px}
.lead{color:var(--gray-600);font-size:16px;max-width:620px}
.center{text-align:center}.center .lead{margin:0 auto}

/* Header */
.hdr{background:var(--blue-900);position:sticky;top:0;z-index:100;box-shadow:0 2px 8px rgba(0,0,0,.2)}
.hdr-in{display:flex;align-items:center;justify-content:space-between;height:62px}
.logo{display:flex;flex-direction:column;line-height:1.2}
.logo-name{color:#fff;font-size:17px;font-weight:600;letter-spacing:-.3px}
.logo-name span{color:var(--blue-500)}
.logo-sub{color:rgba(255,255,255,.5);font-size:11px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{color:rgba(255,255,255,.78);font-size:13.5px;padding:7px 12px;border-radius:var(--radius-md);transition:background .15s,color .15s}
.nav a:hover{background:rgba(255,255,255,.1);color:#fff;text-decoration:none}
.nav .cta{background:#fff;color:var(--blue-900);font-weight:600;margin-left:6px}
.nav .cta:hover{background:var(--blue-100);color:var(--blue-900)}
.burger{display:none;background:none;border:none;color:#fff;cursor:pointer}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:var(--radius-md);font-size:14.5px;font-weight:600;cursor:pointer;border:none;transition:opacity .15s,transform .1s;text-decoration:none}
.btn:hover{opacity:.92;transform:translateY(-1px);text-decoration:none}
.btn-primary{background:#fff;color:var(--blue-700)}
.btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5)}
.btn-blue{background:var(--blue-700);color:#fff}
.btn-ghost{background:#fff;color:var(--blue-700);border:1.5px solid var(--gray-200)}

/* Hero (accueil) */
.hero{background:linear-gradient(135deg,var(--blue-900) 0%,var(--blue-700) 100%);padding:72px 0 80px;color:#fff}
.hero h1{font-size:40px;line-height:1.15;font-weight:700;letter-spacing:-1px;max-width:720px}
.hero p{color:rgba(255,255,255,.75);font-size:17px;margin:18px 0 28px;max-width:600px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-trust{margin-top:34px;display:flex;gap:26px;flex-wrap:wrap;color:rgba(255,255,255,.7);font-size:13.5px}
.hero-trust b{color:#fff;font-weight:600}

/* Page hero (pages intérieures) */
.page-hero{background:linear-gradient(135deg,var(--blue-900) 0%,var(--blue-700) 100%);color:#fff;padding:48px 0}
.page-hero h1{font-size:30px;font-weight:700;letter-spacing:-.6px}
.page-hero p{color:rgba(255,255,255,.72);font-size:15.5px;margin-top:8px;max-width:640px}
.crumb{font-size:12.5px;color:rgba(255,255,255,.6);margin-bottom:12px}
.crumb a{color:rgba(255,255,255,.8)}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;margin-top:48px}
.card{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-lg);padding:28px 24px;box-shadow:var(--shadow-sm);transition:box-shadow .2s,transform .2s;display:flex;flex-direction:column;gap:12px}
.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.card .ico{width:46px;height:46px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:23px;background:var(--blue-50)}
.card h3{font-size:17px;font-weight:600}
.card p{color:var(--gray-600);font-size:14px;flex:1}
.card .more{font-size:13.5px;font-weight:600;color:var(--blue-700)}
.badge{display:inline-block;font-size:11px;font-weight:600;padding:3px 9px;border-radius:20px;background:var(--blue-100);color:#1e40af;align-self:flex-start}
.badge.teal{background:var(--teal-100);color:#065f46}

/* Features */
.feat{background:var(--gray-50)}
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:28px;margin-top:40px}
.feat-item{display:flex;gap:14px}
.feat-item .fi{flex:none;width:40px;height:40px;border-radius:var(--radius-md);background:var(--white);border:1px solid var(--gray-200);display:flex;align-items:center;justify-content:center;color:var(--blue-700)}
.feat-item h4{font-size:15.5px;font-weight:600;margin-bottom:3px}
.feat-item p{color:var(--gray-600);font-size:13.5px}

/* Band */
.band{background:linear-gradient(135deg,var(--blue-700) 0%,var(--blue-500) 100%);color:#fff;border-radius:var(--radius-lg);padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.band h2{font-size:25px;font-weight:700;letter-spacing:-.4px}
.band p{color:rgba(255,255,255,.8);font-size:15px;margin-top:6px;max-width:520px}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;margin-top:40px;align-items:start}
.info-row{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--gray-200)}
.info-row .ii{flex:none;width:42px;height:42px;border-radius:var(--radius-md);background:var(--blue-50);display:flex;align-items:center;justify-content:center;font-size:19px}
.info-row b{display:block;font-size:14px}
.info-row span{color:var(--gray-600);font-size:14px}
.help-list{list-style:none;display:grid;gap:10px}
.help-list a{display:flex;align-items:center;gap:10px;padding:14px 16px;background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius-md);color:var(--gray-900);font-weight:500;font-size:14px;transition:border-color .15s,box-shadow .15s}
.help-list a:hover{border-color:var(--blue-500);box-shadow:var(--shadow-sm);text-decoration:none}
.help-list a .arr{margin-left:auto;color:var(--blue-500)}

/* FAQ (accordéon natif <details>) */
.faq{display:grid;gap:12px;margin-top:32px}
.faq details{border:1px solid var(--gray-200);border-radius:var(--radius-md);background:#fff;overflow:hidden}
.faq summary{list-style:none;cursor:pointer;padding:16px 18px;font-weight:600;font-size:15px;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--blue-500);font-size:20px;font-weight:400;flex:none}
.faq details[open] summary::after{content:"\2212"}
.faq details[open] summary{border-bottom:1px solid var(--gray-100)}
.faq .ans{padding:14px 18px 18px;color:var(--gray-600);font-size:14.5px}

/* Prose (pages texte / légales) */
.prose{color:var(--gray-600);font-size:15px}
.prose h2{font-size:19px;font-weight:600;color:var(--gray-900);margin:28px 0 8px}
.prose h3{font-size:15.5px;font-weight:600;color:var(--gray-900);margin:18px 0 4px}
.prose p{margin:8px 0}
.prose ul{margin:8px 0 8px 22px}
.prose li{margin:4px 0}
.prose a{word-break:break-word}
.callout{background:var(--blue-50);border:1px solid #bfdbfe;border-radius:var(--radius-md);padding:14px 16px;color:#1e40af;font-size:14px;margin:18px 0}

/* Steps */
.steps{counter-reset:s;display:grid;gap:14px;margin-top:28px}
.step{display:flex;gap:16px;align-items:flex-start}
.step::before{counter-increment:s;content:counter(s);flex:none;width:34px;height:34px;border-radius:50%;background:var(--blue-700);color:#fff;font-weight:600;display:flex;align-items:center;justify-content:center;font-size:15px}
.step h4{font-size:15.5px;font-weight:600}
.step p{color:var(--gray-600);font-size:14px;margin-top:2px}

/* Vidéos */
.video-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;margin-top:36px}
.video-card{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm)}
.video-card video{width:100%;display:block;background:#000;aspect-ratio:16/9}
.video-card .vc-body{padding:16px 18px}
.video-card h3{font-size:15.5px;font-weight:600}
.video-card p{color:var(--gray-600);font-size:13.5px;margin-top:4px}

/* Footer */
.ftr{background:var(--blue-900);color:rgba(255,255,255,.7);padding:40px 0}
.ftr-in{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center;font-size:13.5px}
.ftr a{color:rgba(255,255,255,.8)}
.ftr-links{display:flex;gap:18px;flex-wrap:wrap}

@media(max-width:860px){
  .nav{position:absolute;top:62px;left:0;right:0;background:var(--blue-900);flex-direction:column;align-items:stretch;padding:10px 24px 18px;gap:2px;display:none;box-shadow:0 8px 16px rgba(0,0,0,.25)}
  .nav.open{display:flex}
  .nav .cta{margin:8px 0 0;text-align:center}
  .burger{display:block}
  .hero h1{font-size:30px}.hero p{font-size:16px}
  .band{padding:32px 26px}.contact-grid{grid-template-columns:1fr}
  section{padding:48px 0}
}