* { box-sizing: border-box; }
:root {
  --bg: #0b0b10;
  --bg-alt: #0f1117;
  --text: #eef2f7;
  --muted: #a8b3c6;
  --primary: #6C487D;       /* accent demandé */
  --primary-600: #593B68;   /* hover foncé */
  --card: #121521;
  --border: #1f2533;
}
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Figtree', system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, 'Helvetica Neue', Arial, 'Noto Sans', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
  background: linear-gradient(180deg, var(--bg), var(--bg-alt));
  color: var(--text);
}
.container {
  max-width: 1100px;
  padding: 0 20px;
  margin: 0 auto;
}

/* Header */
.site-header { position: sticky; top: 0; z-index: 10; backdrop-filter: blur(8px); background: rgba(11,11,16,.6); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-weight: 800; letter-spacing: .5px; }
.nav { display: flex; gap: 14px; align-items: center; }
.nav a { color: var(--muted); text-decoration: none; font-weight: 500; padding: 8px 10px; border-radius: 8px; }
.nav a:hover { color: var(--text); background: rgba(255,255,255,.05); }

/* Buttons */
.btn { background: var(--primary); color: white !important; padding: 10px 14px; border-radius: 10px; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid transparent; }
.btn:hover { background: var(--primary-600); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { background: rgba(255,255,255,.05); }
.btn-lg { padding: 14px 18px; font-size: 16px; }
.btn-block { width: 100%; }

/* Hero */
.hero { padding: 96px 0 48px; background: radial-gradient(1000px 600px at 50% -150px, rgba(108,72,125,.25), transparent), radial-gradient(800px 400px at 100% 0%, rgba(108,72,125,.12), transparent); border-bottom: 1px solid var(--border); }
.hero-inner { text-align: center; }
.hero h1 { font-size: clamp(32px, 4vw, 54px); margin: 0 0 12px; line-height: 1.05; }
.hero p { margin: 0 auto 24px; max-width: 800px; color: var(--muted); font-size: 18px; }
.hero-ctas { display: flex; gap: 12px; justify-content: center; }

/* Sections */
.section { padding: 72px 0; }
.section.alt { background: linear-gradient(180deg, var(--bg-alt), var(--bg)); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-title { font-size: 28px; margin: 0 0 8px; text-align: center; }
.section-subtitle { text-align: center; color: var(--muted); margin: 0 auto 28px; max-width: 700px; }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature-card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 18px; }
.feature-card h3 { margin: 0 0 6px; font-size: 18px; }
.feature-card p { margin: 0; color: var(--muted); }

/* Pricing */
.billing-toggle { display: flex; gap: 10px; justify-content: center; margin: 20px 0 28px; }
.toggle { background: transparent; color: var(--text); border: 1px solid var(--border); border-radius: 999px; padding: 8px 14px; cursor: pointer; }
.toggle.active { background: var(--primary); border-color: var(--primary); }

.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.price-card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 20px; position: relative; display: flex; flex-direction: column; }
.price-card.popular { border-color: var(--primary); box-shadow: 0 0 0 1px rgba(108,140,255,.2) inset; }
.price-card .badge { position: absolute; top: -10px; right: 16px; background: var(--primary); color: #fff; padding: 6px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.pc-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.pc-head h3 { margin: 0; font-size: 18px; }
.price { font-weight: 800; font-size: 20px; }
.pc-desc { color: var(--muted); }
.pc-list { margin: 16px 0 0; padding: 0 0 0 18px; color: var(--muted); flex: 1; }
.pc-list li { margin: 6px 0; }

/* FAQ */
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 20px; }
.faq-grid details { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 12px 16px; }
.faq-grid summary { cursor: pointer; font-weight: 600; }
.faq-grid p { color: var(--muted); margin: 8px 0 0; }

/* Steps (Utilisation simple) */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step-card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 18px; }
.step-card h3 { margin: 0 0 8px; font-size: 16px; letter-spacing: .3px; color: var(--text); }
.step-card p { margin: 0; color: var(--muted); }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 24px 0; background: var(--bg-alt); }
.footer-split { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.site-footer small { color: var(--muted); font-size: 12px; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--text); }

/* Responsive */
@media (max-width: 960px) {
  .features-grid, .pricing-grid { grid-template-columns: 1fr 1fr; }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr; text-align: center; }
  .copyright { text-align: center; }
}
@media (max-width: 640px) {
  .nav { display: none; }
  .features-grid, .pricing-grid, .faq-grid, .steps-grid { grid-template-columns: 1fr; }
  .hero { padding: 72px 0 36px; }
  .footer-split { flex-direction: column; }
}