/* ===== Variables ===== */
:root {
  --color-primary: #1E3A8A;
  --color-primary-dark: #172a63;
  --color-secondary: #3B82F6;
  --color-accent: #60A5FA;
  --color-bg: #F3F4F6;
  --color-bg-soft: #EFF6FF;
  --color-bg-hover: #E0E7FF;
  --color-text: #1F2937;
  --color-text-soft: #4B5563;
  --color-white: #FFFFFF;
  --color-success: #10B981;
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 30px rgba(30, 58, 138, 0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --transition: 0.3s ease;
  --max-width: 1140px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-secondary); text-decoration: none; transition: color var(--transition); }
a:hover, a:focus { color: var(--color-primary); }
:focus-visible { outline: 3px solid var(--color-secondary); outline-offset: 2px; border-radius: 4px; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* ===== Navigation ===== */
.site-nav {
  background: var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  color: var(--color-white);
  font-weight: 700;
  font-size: 1.15em;
  letter-spacing: -0.01em;
}
.nav-brand:hover, .nav-brand:focus { color: var(--color-accent); }
.nav-menu {
  display: flex;
  gap: 4px;
  list-style: none;
  align-items: center;
}
.nav-menu a {
  color: var(--color-white);
  padding: 10px 16px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
  font-size: 0.95em;
}
.nav-menu a:hover, .nav-menu a:focus, .nav-menu a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
}
.burger {
  display: none;
  background: none;
  border: 0;
  font-size: 1.6em;
  color: var(--color-white);
  cursor: pointer;
  padding: 4px 8px;
}

/* ===== Header / Hero ===== */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
  text-align: center;
  padding: 80px 24px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
  pointer-events: none;
}
.hero-inner { position: relative; max-width: 800px; margin: 0 auto; }
.hero h1 {
  font-size: clamp(2em, 5vw, 2.8em);
  margin-bottom: 20px;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.hero p.lead {
  font-size: clamp(1.05em, 2vw, 1.25em);
  margin-bottom: 32px;
  opacity: 0.95;
  font-weight: 400;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1em;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  margin: 6px;
}
.btn-primary {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}
.btn-primary:hover, .btn-primary:focus {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  color: var(--color-primary-dark);
}
.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}
.btn-secondary:hover, .btn-secondary:focus {
  background: var(--color-white);
  color: var(--color-primary);
  transform: translateY(-2px);
}
.btn-on-light {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 6px 20px rgba(30, 58, 138, 0.25);
}
.btn-on-light:hover, .btn-on-light:focus {
  background: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(30, 58, 138, 0.35);
}
.btn-affiliate {
  background: linear-gradient(90deg, var(--color-success) 0%, #34D399 100%);
  color: var(--color-white);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.3);
}
.btn-affiliate:hover, .btn-affiliate:focus {
  background: linear-gradient(90deg, #0ea271 0%, #10B981 100%);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(16, 185, 129, 0.4);
}

/* ===== Sections ===== */
main { padding: 48px 0; }
.section { margin: 48px 0; }
.section-title {
  text-align: center;
  font-size: clamp(1.6em, 3vw, 2.1em);
  color: var(--color-primary);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.section-subtitle {
  text-align: center;
  color: var(--color-text-soft);
  max-width: 700px;
  margin: 0 auto 36px;
  font-size: 1.05em;
}

/* ===== Cards / Pricing ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin: 32px 0;
}
.pricing-card {
  background: var(--color-white);
  padding: 28px 22px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid rgba(30, 58, 138, 0.06);
}
.pricing-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.pricing-card .tier { font-size: 1.05em; color: var(--color-text-soft); font-weight: 500; margin-bottom: 8px; }
.pricing-card .price {
  font-size: 2em;
  color: var(--color-primary);
  font-weight: 700;
  margin: 12px 0;
  letter-spacing: -0.02em;
}
.pricing-card .price-unit { font-size: 0.55em; color: var(--color-text-soft); font-weight: 400; }
.pricing-card .desc { color: var(--color-text-soft); font-size: 0.95em; }
.pricing-card.featured {
  background: linear-gradient(180deg, var(--color-bg-soft) 0%, var(--color-white) 100%);
  border-color: var(--color-secondary);
  position: relative;
}
.pricing-card.featured::before {
  content: 'Recommandé';
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-secondary);
  color: var(--color-white);
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.75em;
  font-weight: 600;
}

/* ===== Features ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin: 32px 0;
}
.feature {
  background: var(--color-white);
  padding: 28px 22px;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition);
  border: 1px solid rgba(30, 58, 138, 0.06);
}
.feature:hover { transform: translateY(-4px); }
.feature-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: var(--color-bg-soft);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
}
.feature-icon svg { width: 28px; height: 28px; }
.feature h3 { color: var(--color-primary); font-size: 1.1em; margin-bottom: 8px; }
.feature p { color: var(--color-text-soft); font-size: 0.95em; }

/* ===== Content blocks ===== */
.content-block {
  background: var(--color-white);
  padding: 32px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin: 24px 0;
}
.content-block h2, .content-block h3 {
  color: var(--color-primary);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.content-block h2 { font-size: 1.75em; }
.content-block h3 { font-size: 1.35em; }
.content-block p { color: var(--color-text); margin-bottom: 14px; }
.content-block p:last-child { margin-bottom: 0; }
.content-block ul {
  list-style: none;
  margin: 16px 0;
}
.content-block ul li {
  padding-left: 32px;
  position: relative;
  margin: 12px 0;
  color: var(--color-text);
}
.content-block ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 20px;
  height: 20px;
  background: var(--color-secondary);
  border-radius: 50%;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='white'><path d='M13.485 4.515a1 1 0 010 1.414l-6 6a1 1 0 01-1.414 0l-3-3a1 1 0 011.414-1.414L6.778 9.808l5.293-5.293a1 1 0 011.414 0z'/></svg>");
  background-repeat: no-repeat;
  background-position: center;
}

/* ===== Testimonial ===== */
.testimonial {
  background: linear-gradient(135deg, var(--color-bg-soft) 0%, var(--color-white) 100%);
  padding: 40px 32px;
  border-radius: var(--radius-md);
  margin: 40px 0;
  text-align: center;
  border-left: 4px solid var(--color-secondary);
}
.testimonial blockquote {
  font-style: italic;
  font-size: 1.15em;
  color: var(--color-primary);
  max-width: 700px;
  margin: 0 auto 16px;
  line-height: 1.6;
}
.testimonial cite {
  color: var(--color-text-soft);
  font-style: normal;
  font-size: 0.95em;
  font-weight: 500;
}

/* ===== FAQ ===== */
.faq { margin: 48px 0; }
.faq-list { display: grid; gap: 12px; max-width: 900px; margin: 0 auto; }
.faq-item {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border: 1px solid rgba(30, 58, 138, 0.06);
}
.faq-item summary {
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  color: var(--color-primary);
  font-size: 1.05em;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: background var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.5em;
  font-weight: 400;
  color: var(--color-secondary);
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { background: var(--color-bg-soft); }
.faq-item .faq-content {
  padding: 0 24px 20px;
  color: var(--color-text-soft);
  line-height: 1.7;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.9em;
  color: var(--color-text-soft);
}
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.breadcrumb li:not(:last-child)::after {
  content: '/';
  margin-left: 8px;
  color: var(--color-text-soft);
}
.breadcrumb a { color: var(--color-secondary); }
.breadcrumb [aria-current="page"] { color: var(--color-text-soft); }

/* ===== CTA Section ===== */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
  padding: 56px 32px;
  border-radius: var(--radius-lg);
  text-align: center;
  margin: 56px 0;
}
.cta-section h2 { font-size: clamp(1.5em, 3vw, 2em); margin-bottom: 14px; color: var(--color-white); letter-spacing: -0.01em; }
.cta-section p { margin-bottom: 28px; opacity: 0.95; max-width: 600px; margin-left: auto; margin-right: auto; }

/* ===== Form / Contact ===== */
.contact-iframe {
  width: 100%;
  height: 600px;
  border: 0;
  border-radius: var(--radius-md);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  margin-top: 16px;
}
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 24px 0;
}
.contact-info-item {
  background: var(--color-bg-soft);
  padding: 20px;
  border-radius: var(--radius-md);
  text-align: center;
}
.contact-info-item .label { color: var(--color-text-soft); font-size: 0.9em; margin-bottom: 6px; }
.contact-info-item .value { color: var(--color-primary); font-weight: 600; font-size: 1.05em; word-break: break-word; }
.contact-info-item .value a { color: var(--color-primary); }

/* ===== Footer ===== */
.site-footer {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 48px 24px 24px;
  margin-top: 64px;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}
.footer-col h4 { font-size: 1em; margin-bottom: 14px; color: var(--color-white); font-weight: 600; }
.footer-col p, .footer-col a { color: rgba(255, 255, 255, 0.85); font-size: 0.95em; }
.footer-col a:hover, .footer-col a:focus { color: var(--color-white); text-decoration: underline; }
.footer-col ul { list-style: none; }
.footer-col li { margin: 8px 0; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 20px;
  text-align: center;
  font-size: 0.9em;
  color: rgba(255, 255, 255, 0.75);
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .burger { display: block; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-primary);
    flex-direction: column;
    padding: 12px;
    gap: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }
  .nav-menu.active { display: flex; }
  .nav-menu a { display: block; padding: 12px 16px; }
  .hero { padding: 56px 20px; }
  .content-block { padding: 24px 20px; }
  .cta-section { padding: 40px 24px; }
  main { padding: 24px 0; }
  .container { padding: 0 16px; }
}

/* ===== Animations ===== */
@media (prefers-reduced-motion: no-preference) {
  .hero-inner > * { animation: fadeInUp 0.6s ease-out both; }
  .hero-inner > *:nth-child(1) { animation-delay: 0.1s; }
  .hero-inner > *:nth-child(2) { animation-delay: 0.2s; }
  .hero-inner > *:nth-child(3) { animation-delay: 0.3s; }
  @keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }
}