/* =========================================================================
   Site vitrine — statique, sans dépendance externe (aucun CDN, aucune police
   distante : cohérent avec un positionnement « confidentialité & sécurité »).
   Palette : navy profond + accent vert « sécurisé ».
   ========================================================================= */

:root {
  --bg:        #0b1220;   /* fond principal (navy profond) */
  --bg-alt:    #0f1a2e;   /* sections alternées */
  --surface:   #142138;   /* cartes */
  --border:    #24334d;
  --text:      #e6ecf5;
  --muted:     #9fb0c9;
  --accent:    #10b981;   /* vert « sécurisé » */
  --accent-2:  #34d399;
  --radius:    14px;
  --wrap:      1080px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.center { text-align: center; }

/* --- Navigation ---------------------------------------------------------- */
.nav {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 16px 24px;
  background: rgba(11, 18, 32, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 1.05rem; color: var(--text); text-decoration: none; letter-spacing: 0.3px; }
.brand-mark { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 0.94rem; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  color: var(--bg) !important; background: var(--accent);
  padding: 8px 16px; border-radius: 999px; font-weight: 600;
}
.nav-cta:hover { background: var(--accent-2); }

/* --- Hero ---------------------------------------------------------------- */
.hero {
  padding: 96px 0 88px;
  background:
    radial-gradient(1000px 500px at 70% -10%, rgba(16, 185, 129, 0.14), transparent 60%),
    var(--bg);
  border-bottom: 1px solid var(--border);
}
.eyebrow {
  text-transform: uppercase; letter-spacing: 2px; font-size: 0.78rem;
  color: var(--accent-2); font-weight: 600; margin-bottom: 20px;
}
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); line-height: 1.12; font-weight: 800; letter-spacing: -0.5px; }
h1 .accent { color: var(--accent); }
.lead { max-width: 620px; margin: 24px 0 32px; font-size: 1.12rem; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* --- Boutons ------------------------------------------------------------- */
.btn {
  display: inline-block; text-decoration: none; font-weight: 600;
  padding: 13px 26px; border-radius: 999px; font-size: 0.98rem;
  transition: transform 0.15s, background 0.2s, border-color 0.2s;
  border: 1px solid transparent;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--accent); color: #06231a; }
.btn-primary:hover { background: var(--accent-2); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-2); }
.btn-lg { padding: 16px 40px; font-size: 1.06rem; }

/* --- Sections ------------------------------------------------------------ */
.section { padding: 84px 0; border-bottom: 1px solid var(--border); }
.section-alt { background: var(--bg-alt); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.3rem); font-weight: 800; letter-spacing: -0.3px; }
.section-intro { max-width: 640px; margin: 16px 0 40px; color: var(--muted); font-size: 1.06rem; }
.note { margin-top: 32px; color: var(--muted); font-style: italic; }
.disclaimer { margin-top: 14px; color: var(--muted); font-size: 0.82rem; opacity: 0.75; }

/* --- Grilles & cartes ---------------------------------------------------- */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover { border-color: var(--accent); transform: translateY(-3px); }
.card h3 { font-size: 1.16rem; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 0.98rem; }
.card-lg { padding: 32px; }
.services-extra { margin-top: 20px; }

.tag {
  display: inline-block; font-size: 0.74rem; text-transform: uppercase; letter-spacing: 1px;
  font-weight: 700; color: var(--accent-2); background: rgba(16, 185, 129, 0.12);
  padding: 5px 12px; border-radius: 999px; margin-bottom: 14px;
}
.tag-active { color: #fca5a5; background: rgba(248, 113, 113, 0.12); }

.list { list-style: none; margin-top: 8px; }
.list li { position: relative; padding: 7px 0 7px 26px; color: var(--muted); }
.list li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

.ethics {
  margin-top: 36px; padding: 20px 24px; background: rgba(16, 185, 129, 0.07);
  border: 1px solid var(--border); border-left: 3px solid var(--accent);
  border-radius: 10px; color: var(--text);
}

/* --- Étapes -------------------------------------------------------------- */
.steps { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.steps li { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--accent); color: #06231a; font-weight: 800; font-size: 1.1rem; margin-bottom: 14px;
}
.steps h3 { margin-bottom: 8px; }
.steps p { color: var(--muted); font-size: 0.98rem; }
.sample { margin-top: 34px; }

/* --- Bandeau « preuve » -------------------------------------------------- */
.proof { padding: 64px 0; background: linear-gradient(180deg, var(--bg-alt), var(--bg)); }
.proof-text {
  max-width: 760px; margin: 0 auto; text-align: center;
  font-size: 1.22rem; color: var(--text);
}

/* --- Contact ------------------------------------------------------------- */
#contact .section-intro { margin-left: auto; margin-right: auto; }
.confid { margin-top: 22px; color: var(--muted); font-size: 0.9rem; }

/* --- Footer -------------------------------------------------------------- */
.footer { padding: 30px 0; background: var(--bg); }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 0.9rem; }

/* --- Responsive ---------------------------------------------------------- */
@media (max-width: 820px) {
  .grid-2, .grid-3, .steps { grid-template-columns: 1fr; }
  .nav-links { gap: 14px; }
  .nav-links a:not(.nav-cta) { display: none; }   /* mobile : on garde le CTA */
  .hero { padding: 72px 0 64px; }
  .section { padding: 60px 0; }
}