/* ============================================
   ETCHÉ FORMATION — Design system
   ============================================ */

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

:root {
  --navy: #0F2A4A;
  --navy-light: #1A3D6B;
  --navy-dark: #081B33;
  --yellow: #FFCD1C;
  --yellow-soft: #FFE17A;
  --green: #10B981;
  --green-dark: #047857;
  --warm-50: #F8F7F4;
  --warm-100: #F0EFE9;
  --warm-200: #E2E0D6;
  --warm-300: #C9C5B0;
  --warm-700: #4A4738;
  --warm-900: #1A1A1A;
}

* { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--warm-900);
  background: #fff;
  font-size: 16px;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, .font-display {
  font-family: 'Bricolage Grotesque', 'Inter', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

/* Couleurs */
.bg-navy { background-color: var(--navy); }
.bg-navy-light { background-color: var(--navy-light); }
.bg-navy-dark { background-color: var(--navy-dark); }
.bg-yellow { background-color: var(--yellow); }
.bg-yellow-soft { background-color: var(--yellow-soft); }
.bg-green { background-color: var(--green); }
.bg-warm { background-color: var(--warm-50); }
.bg-warm-100 { background-color: var(--warm-100); }
.bg-warm-200 { background-color: var(--warm-200); }

.text-navy { color: var(--navy); }
.text-navy-light { color: var(--navy-light); }
.text-yellow { color: var(--yellow); }
.text-green { color: var(--green); }
.text-warm-700 { color: var(--warm-700); }

.border-navy { border-color: var(--navy); }
.border-yellow { border-color: var(--yellow); }
.border-green { border-color: var(--green); }
.border-warm-200 { border-color: var(--warm-200); }

/* Boutons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  border-radius: 0.75rem;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  border: 2px solid transparent;
}
.btn-primary { background: var(--yellow); color: var(--navy); }
.btn-primary:hover { background: var(--navy); color: var(--yellow); transform: translateY(-1px); box-shadow: 0 8px 20px -8px rgba(15,42,74,0.4); }
.btn-secondary { background: var(--navy); color: #fff; }
.btn-secondary:hover { background: var(--navy-light); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-ghost { background: transparent; color: var(--warm-900); }
.btn-ghost:hover { background: var(--warm-100); }
.btn-lg { padding: 1.125rem 2rem; font-size: 1.05rem; }

/* Cards */
.card {
  background: #fff;
  border: 1px solid var(--warm-200);
  border-radius: 1rem;
  transition: all 0.25s ease;
}
.card:hover { border-color: var(--navy); box-shadow: 0 12px 30px -12px rgba(15,42,74,0.18); transform: translateY(-2px); }

.formation-card {
  position: relative;
  overflow: hidden;
}
.formation-card .icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 0.75rem;
  background: var(--warm-100);
  color: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
}
.formation-card:hover .icon-wrap { background: var(--yellow); }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--warm-100);
  color: var(--navy);
}
.badge-yellow { background: var(--yellow); color: var(--navy); }
.badge-green { background: rgba(16,185,129,0.12); color: var(--green-dark); }
.badge-navy { background: var(--navy); color: var(--yellow); }

/* Containers */
.container-x { max-width: 1240px; margin: 0 auto; padding: 0 1.25rem; }
@media (min-width: 768px) { .container-x { padding: 0 2rem; } }

/* Sections */
.section-pad { padding-top: 4rem; padding-bottom: 4rem; }
@media (min-width: 768px) { .section-pad { padding-top: 6rem; padding-bottom: 6rem; } }

/* Hero */
.hero-bg {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 60%, var(--navy-light) 100%);
  position: relative;
  overflow: hidden;
}
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 30%, rgba(255,205,28,0.15) 0%, transparent 40%),
    radial-gradient(circle at 85% 70%, rgba(255,205,28,0.08) 0%, transparent 50%);
  pointer-events: none;
}

/* Number stats */
.stat-number {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1;
  color: var(--yellow);
}

/* FAQ */
.faq-item {
  border: 1px solid var(--warm-200);
  border-radius: 1rem;
  margin-bottom: 0.75rem;
  background: #fff;
  transition: all 0.2s;
}
.faq-item:hover { border-color: var(--navy); }
.faq-item.is-open { border-color: var(--navy); box-shadow: 0 8px 24px -12px rgba(15,42,74,0.15); }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  text-align: left;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 1.05rem;
  color: var(--navy);
}
.faq-icon { transition: transform 0.25s; flex-shrink: 0; }
.faq-item.is-open .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-answer-inner { padding: 0 1.5rem 1.25rem; color: var(--warm-700); }
.faq-item.is-open .faq-answer { max-height: 800px; }

/* Form */
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1.5px solid var(--warm-200);
  border-radius: 0.75rem;
  font-size: 0.95rem;
  font-family: inherit;
  background: #fff;
  color: var(--warm-900);
  transition: border-color 0.2s;
}
.form-input::placeholder, .form-textarea::placeholder {
  color: #94a3b8;
}
.form-select option { color: var(--warm-900); background: #fff; }
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(15,42,74,0.12);
}
.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.4rem;
}
.form-textarea { min-height: 130px; resize: vertical; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--warm-200);
}
.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--warm-900);
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  transition: all 0.15s;
}
.nav-link:hover { background: var(--warm-100); color: var(--navy); }
.nav-link.active { color: var(--navy); background: var(--warm-100); }

/* Mobile menu */
.mobile-menu { display: none; }
.mobile-menu.is-open { display: block; }

/* Trust bar */
.trust-strip {
  background: var(--navy-dark);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 500;
}

/* Tags / chips */
.chip {
  display: inline-block;
  padding: 0.3rem 0.85rem;
  background: var(--warm-100);
  color: var(--navy);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  margin: 0.2rem;
}

/* CTA blocks */
.cta-block {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  color: #fff;
  border-radius: 1.5rem;
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}
.cta-block::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,205,28,0.18) 0%, transparent 70%);
  pointer-events: none;
}

/* Image wrappers */
.img-wrap {
  border-radius: 1.25rem;
  overflow: hidden;
  background: var(--warm-100);
}
.img-wrap img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-fadeup { animation: fadeUp 0.6s ease-out backwards; }

/* Mobile responsive fix */
@media (max-width: 640px) {
  .section-pad { padding-top: 3rem; padding-bottom: 3rem; }
  h1 { font-size: 2.1rem !important; }
  h2 { font-size: 1.7rem !important; }
  .btn-lg { padding: 0.95rem 1.5rem; font-size: 1rem; }
  .cta-block { padding: 1.75rem; }
}

/* ============================================
   Accessibilité — WCAG 2.1 AA
   ============================================ */

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  z-index: 100;
  background: var(--yellow);
  color: var(--navy);
  padding: 0.75rem 1.5rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 0.5rem 0;
  transition: top 0.2s;
}
.skip-link:focus { top: 0; outline: 3px solid var(--navy); }

/* Focus visible — WCAG 2.4.7 */
.btn:focus-visible,
.nav-link:focus-visible,
.faq-question:focus-visible,
.form-input:focus-visible,
.form-select:focus-visible,
.form-textarea:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 2px;
}

/* Contrast helper for white text on dark backgrounds */
.text-white-strong { color: rgba(255,255,255,0.92); }
.text-white-soft { color: rgba(255,255,255,0.82); }

/* Touch targets WCAG 2.5.5 */
@media (max-width: 1024px) {
  .nav-link { padding: 0.75rem 1rem; min-height: 44px; display: flex; align-items: center; }
}

/* ============================================
   Sticky mobile CTA bar
   ============================================ */
.sticky-mobile-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 49;
  background: white;
  border-top: 1px solid var(--warm-200);
  box-shadow: 0 -8px 20px -8px rgba(15,42,74,0.18);
  padding: 0.6rem;
  gap: 0.5rem;
}
@media (max-width: 767px) {
  .sticky-mobile-cta { display: flex; }
  body { padding-bottom: 75px; }
}
.sticky-mobile-cta .btn {
  flex: 1;
  padding: 0.8rem 0.6rem;
  font-size: 0.92rem;
  min-height: 48px;
}

/* sr-only utility */
.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;
}

/* En bref block */
.en-bref {
  background: linear-gradient(135deg, rgba(255,205,28,0.08), rgba(255,205,28,0.02));
  border-left: 4px solid var(--yellow);
  border-radius: 0 1rem 1rem 0;
  padding: 1.5rem 1.75rem;
  margin-bottom: 2rem;
}
.en-bref dl { display: grid; grid-template-columns: max-content 1fr; gap: 0.5rem 1rem; }
.en-bref dt { font-weight: 600; color: var(--navy); }
.en-bref dd { color: var(--warm-900); margin: 0; }
@media (max-width: 640px) {
  .en-bref dl { grid-template-columns: 1fr; gap: 0.25rem; }
  .en-bref dd { margin-bottom: 0.5rem; }
}

/* Print friendly footer */
@media print {
  .site-header, .mobile-menu, .btn { display: none; }
}