/* ============================================================
   LBC Security — feuille de style partagée
   Direction : institutionnel, rassurant, sans cliché "hacker"
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,500;12..96,600;12..96,700;12..96,800&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root{
  --encre:#0B1B3A;        /* bleu marine profond — autorité, texte */
  --bleu:#2551C4;         /* bleu de confiance — accent, CTA */
  --bleu-clair:#EAF0FD;   /* fond bleuté doux */
  --ardoise:#5A6B85;      /* texte secondaire */
  --brume:#F4F7FC;        /* fond de section */
  --blanc:#FFFFFF;
  --valide:#1F9D6B;       /* vert — uniquement pour les validations */
  --alerte:#D64545;       /* rouge — uniquement pour "email suspect" */
  --bordure:#E2E8F2;

  --r:14px;               /* rayon des cartes */
  --shadow:0 1px 2px rgba(11,27,58,.04), 0 8px 24px rgba(11,27,58,.06);
  --shadow-lg:0 2px 4px rgba(11,27,58,.05), 0 20px 48px rgba(11,27,58,.12);
  --max:1120px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'IBM Plex Sans',system-ui,sans-serif;
  color:var(--encre);
  background:var(--blanc);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img,svg{display:block}

/* ---------- Typographie ---------- */
h1,h2,h3{font-family:'Bricolage Grotesque',sans-serif;line-height:1.1;letter-spacing:-.02em;color:var(--encre)}
h1{font-size:clamp(2.1rem,5vw,3.5rem);font-weight:700}
h2{font-size:clamp(1.7rem,3.5vw,2.5rem);font-weight:700}
h3{font-size:1.2rem;font-weight:600;letter-spacing:-.01em}
.eyebrow{
  font-family:'IBM Plex Mono',monospace;
  font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--bleu);
}
p{color:var(--ardoise)}
.lead{font-size:clamp(1.05rem,1.8vw,1.25rem);color:var(--ardoise)}

/* ---------- Layout ---------- */
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
section{padding:clamp(56px,8vw,100px) 0}
.section-brume{background:var(--brume)}
.section-encre{background:var(--encre)}
.center{text-align:center}
.section-head{max-width:640px;margin:0 auto 48px}
.section-head.left{margin-left:0}
.section-head h2{margin:12px 0 14px}

/* ---------- Boutons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:'IBM Plex Sans';font-weight:600;font-size:1rem;
  padding:14px 26px;border-radius:10px;border:1.5px solid transparent;
  cursor:pointer;transition:transform .15s ease, box-shadow .2s ease, background .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--bleu);color:#fff;box-shadow:0 6px 18px rgba(37,81,196,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(37,81,196,.36)}
.btn-ghost{background:transparent;color:var(--encre);border-color:var(--bordure)}
.btn-ghost:hover{border-color:var(--bleu);color:var(--bleu)}
.btn-light{background:#fff;color:var(--encre)}
.btn-light:hover{transform:translateY(-2px)}
.btn-arrow svg{width:16px;height:16px;transition:transform .2s ease}
.btn:hover .btn-arrow svg,.btn.btn-arrow:hover svg{transform:translateX(3px)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--bordure);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:11px;font-family:'Bricolage Grotesque';font-weight:700;font-size:1.18rem}
.brand .mark{width:34px;height:34px;flex-shrink:0}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-size:.97rem;font-weight:500;color:var(--ardoise);transition:color .15s}
.nav-links a:hover,.nav-links a.active{color:var(--encre)}
.nav-cta{display:flex;align-items:center;gap:14px}
.menu-btn{display:none;background:none;border:0;cursor:pointer;padding:6px}
.menu-btn svg{width:26px;height:26px}

/* ---------- Hero ---------- */
.hero{padding:clamp(48px,7vw,88px) 0 clamp(56px,8vw,96px);background:linear-gradient(180deg,#fff 0%,var(--brume) 100%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1 .accent{color:var(--bleu)}
.hero .lead{margin:22px 0 28px;max-width:520px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero-trust{display:flex;flex-wrap:wrap;gap:8px 20px}
.trust-item{display:flex;align-items:center;gap:7px;font-size:.9rem;color:var(--ardoise);font-weight:500}
.trust-item svg{width:17px;height:17px;color:var(--valide);flex-shrink:0}

/* Carte "email suspect" — élément signature */
.mail-card{
  background:#fff;border-radius:18px;box-shadow:var(--shadow-lg);
  border:1px solid var(--bordure);overflow:hidden;max-width:420px;margin:0 auto;
}
.mail-top{display:flex;align-items:center;gap:9px;padding:14px 18px;border-bottom:1px solid var(--bordure);background:var(--brume)}
.mail-dot{width:10px;height:10px;border-radius:50%}
.mail-label{margin-left:auto;font-family:'IBM Plex Mono';font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ardoise)}
.mail-body{padding:20px 18px}
.mail-from{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.mail-avatar{width:40px;height:40px;border-radius:9px;background:var(--bleu-clair);display:flex;align-items:center;justify-content:center;color:var(--bleu);font-weight:700;flex-shrink:0}
.mail-from-name{font-weight:600;font-size:.95rem;color:var(--encre)}
.mail-from-mail{font-family:'IBM Plex Mono';font-size:.78rem;color:var(--alerte)}
.mail-subject{font-weight:600;color:var(--encre);margin-bottom:6px}
.mail-preview{font-size:.9rem;color:var(--ardoise);margin-bottom:18px}
.mail-flag{display:flex;align-items:center;gap:9px;padding:11px 13px;border-radius:10px;font-size:.88rem;font-weight:600}
.flag-danger{background:#FCEEEE;color:var(--alerte)}
.flag-safe{background:#EAF7F1;color:var(--valide);margin-top:9px}
.mail-flag svg{width:18px;height:18px;flex-shrink:0}

/* ---------- Bandeau de garanties ---------- */
.guarantees{border-top:1px solid var(--bordure);border-bottom:1px solid var(--bordure);background:#fff}
.guarantees-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;padding:34px 0}
.guarantee{display:flex;gap:13px;align-items:flex-start}
.guarantee .ico{width:38px;height:38px;flex-shrink:0;border-radius:9px;background:var(--bleu-clair);display:flex;align-items:center;justify-content:center;color:var(--bleu)}
.guarantee .ico svg{width:20px;height:20px}
.guarantee-title{font-weight:600;font-size:.95rem;color:var(--encre);margin-bottom:2px}
.guarantee-sub{font-size:.85rem;color:var(--ardoise);line-height:1.45}

/* ---------- Statistique ---------- */
.stat-band{text-align:center;max-width:760px;margin:0 auto}
.stat-num{font-family:'Bricolage Grotesque';font-weight:800;font-size:clamp(3.2rem,9vw,5.5rem);color:var(--bleu);line-height:1;letter-spacing:-.03em}
.stat-band p{font-size:clamp(1.05rem,2vw,1.3rem);margin-top:14px;color:var(--encre);font-weight:500}
.stat-src{font-size:.82rem;color:var(--ardoise);margin-top:10px}

/* ---------- Cartes prestations ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:#fff;border:1px solid var(--bordure);border-radius:var(--r);padding:30px 26px;
  display:flex;flex-direction:column;transition:transform .2s ease, box-shadow .2s ease, border-color .2s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.card.featured{border-color:var(--bleu);box-shadow:0 12px 34px rgba(37,81,196,.14)}
.card-badge{align-self:flex-start;font-family:'IBM Plex Mono';font-size:.68rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--bleu);background:var(--bleu-clair);padding:5px 10px;border-radius:6px;margin-bottom:16px}
.card h3{margin-bottom:8px}
.card .desc{font-size:.94rem;margin-bottom:20px}
.card-price{margin-top:auto;padding-top:18px;border-top:1px solid var(--bordure)}
.card-price .from{font-size:.8rem;color:var(--ardoise);display:block}
.card-price .amount{font-family:'Bricolage Grotesque';font-weight:700;font-size:1.7rem;color:var(--encre)}
.card-price .unit{font-size:.9rem;color:var(--ardoise);font-weight:500}
.card-list{list-style:none;margin:4px 0 20px}
.card-list li{display:flex;gap:9px;align-items:flex-start;font-size:.92rem;color:var(--ardoise);padding:5px 0}
.card-list li svg{width:17px;height:17px;color:var(--valide);flex-shrink:0;margin-top:3px}

/* ---------- Méthode (étapes) ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:s}
.step{position:relative;padding-top:20px}
.step-num{font-family:'IBM Plex Mono';font-weight:600;font-size:.85rem;color:var(--bleu);letter-spacing:.1em;margin-bottom:12px}
.step h3{margin-bottom:8px;font-size:1.08rem}
.step p{font-size:.92rem}
.step::before{content:"";position:absolute;top:0;left:0;width:44px;height:3px;background:var(--bleu);border-radius:3px}

/* ---------- Pourquoi nous (réassurance) ---------- */
.reasons{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.reason{background:#fff;border:1px solid var(--bordure);border-radius:var(--r);padding:26px}
.reason .ico{width:44px;height:44px;border-radius:11px;background:var(--encre);display:flex;align-items:center;justify-content:center;color:#fff;margin-bottom:16px}
.reason .ico svg{width:22px;height:22px}
.reason h3{margin-bottom:8px;font-size:1.08rem}
.reason p{font-size:.93rem}

/* ---------- FAQ ---------- */
.faq{max-width:760px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--bordure);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-weight:600;color:var(--encre);
  display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:1.02rem;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .chev{width:20px;height:20px;color:var(--bleu);flex-shrink:0;transition:transform .2s}
.faq details[open] summary .chev{transform:rotate(180deg)}
.faq .answer{padding:0 24px 22px;color:var(--ardoise);font-size:.96rem}

/* ---------- Bandeau CTA ---------- */
.cta-band{background:var(--encre);border-radius:22px;padding:clamp(40px,6vw,64px);text-align:center;position:relative;overflow:hidden}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:#B9C4DA;max-width:520px;margin:0 auto 28px}
.cta-band .glow{position:absolute;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(37,81,196,.5),transparent 70%);top:-120px;right:-80px;pointer-events:none}

/* ---------- Footer ---------- */
.site-footer{background:var(--encre);color:#B9C4DA;padding:56px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:11px;font-family:'Bricolage Grotesque';font-weight:700;font-size:1.15rem;color:#fff;margin-bottom:14px}
.footer-brand .mark{width:32px;height:32px}
.footer p{font-size:.9rem;color:#8FA0BD;line-height:1.6}
.footer-col h4{color:#fff;font-family:'IBM Plex Sans';font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:16px;font-weight:600}
.footer-col a{display:block;font-size:.93rem;color:#B9C4DA;padding:5px 0;transition:color .15s}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.83rem;color:#7488A8}

/* ---------- Pages internes : bandeau de titre ---------- */
.page-hero{background:linear-gradient(180deg,#fff,var(--brume));padding:clamp(50px,7vw,80px) 0 clamp(40px,5vw,56px);border-bottom:1px solid var(--bordure)}
.page-hero .eyebrow{margin-bottom:14px;display:inline-block}
.page-hero h1{max-width:760px}
.page-hero .lead{max-width:640px;margin-top:16px}

/* ---------- Comparatif offres ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:900px;margin:0 auto}
.compare-card{border:1px solid var(--bordure);border-radius:var(--r);padding:32px;background:#fff}
.compare-card.hot{border-color:var(--bleu);background:linear-gradient(180deg,#fff,var(--bleu-clair))}
.compare-card h3{font-size:1.35rem;margin-bottom:6px}
.compare-tag{font-size:.85rem;color:var(--ardoise);margin-bottom:20px}
.compare-price{font-family:'Bricolage Grotesque';font-weight:800;font-size:2.3rem;color:var(--encre);margin-bottom:4px}
.compare-price .u{font-size:1rem;color:var(--ardoise);font-weight:500}
.pricing-table{width:100%;max-width:760px;margin:36px auto 0;border-collapse:collapse;background:#fff;border:1px solid var(--bordure);border-radius:var(--r);overflow:hidden}
.pricing-table th,.pricing-table td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--bordure);font-size:.95rem}
.pricing-table th{background:var(--brume);font-family:'IBM Plex Sans';font-weight:600;color:var(--encre);font-size:.82rem;letter-spacing:.04em;text-transform:uppercase}
.pricing-table td{color:var(--ardoise)}
.pricing-table td strong{color:var(--encre)}
.pricing-table tr:last-child td{border-bottom:0}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.contact-info .info-item{display:flex;gap:14px;margin-bottom:22px;align-items:flex-start}
.contact-info .ico{width:42px;height:42px;border-radius:10px;background:var(--bleu-clair);display:flex;align-items:center;justify-content:center;color:var(--bleu);flex-shrink:0}
.contact-info .ico svg{width:20px;height:20px}
.contact-info .info-item strong{display:block;color:var(--encre);font-size:.95rem;margin-bottom:2px}
.contact-info .info-item a,.contact-info .info-item span{color:var(--ardoise);font-size:.95rem}
.privacy-note{background:var(--bleu-clair);border-radius:12px;padding:16px 18px;font-size:.88rem;color:var(--encre);display:flex;gap:11px;align-items:flex-start;margin-top:8px}
.privacy-note svg{width:20px;height:20px;color:var(--bleu);flex-shrink:0;margin-top:1px}
.form{background:#fff;border:1px solid var(--bordure);border-radius:var(--r);padding:32px;box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field label{display:block;font-size:.9rem;font-weight:600;color:var(--encre);margin-bottom:7px}
.field input,.field textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--bordure);border-radius:9px;
  font-family:inherit;font-size:.97rem;color:var(--encre);background:#fff;transition:border-color .15s;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--bleu)}
.field textarea{resize:vertical;min-height:120px}
.field .opt{font-weight:400;color:var(--ardoise);font-size:.82rem}
.form .btn-primary{width:100%;justify-content:center}
.form-note{font-size:.82rem;color:var(--ardoise);text-align:center;margin-top:14px}

/* ---------- Contenu légal ---------- */
.legal{max-width:760px;margin:0 auto}
.legal h2{font-size:1.4rem;margin:36px 0 12px}
.legal h2:first-child{margin-top:0}
.legal p{margin-bottom:12px;color:var(--ardoise)}
.legal strong{color:var(--encre)}

/* ---------- Animations ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.reveal{animation:fadeUp .7s cubic-bezier(.2,.7,.2,1) both}
.reveal.d1{animation-delay:.08s}
.reveal.d2{animation-delay:.16s}
.reveal.d3{animation-delay:.24s}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:-1}
  .guarantees-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .cards,.steps,.reasons{grid-template-columns:1fr 1fr}
  .compare,.contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .nav-links{display:none}
  .nav-links.open{
    display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;
    background:#fff;border-bottom:1px solid var(--bordure);padding:16px 24px;gap:4px;
  }
  .nav-links.open a{padding:12px 0;width:100%;border-bottom:1px solid var(--bordure)}
  .menu-btn{display:block}
  .nav-cta .btn-ghost{display:none}
  .cards,.steps,.reasons,.guarantees-grid,.footer-grid{grid-template-columns:1fr}
  .hero-actions .btn{flex:1;justify-content:center}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto}
}