/* =============================================
   AURLY — CSS Principal
   Charte graphique officielle
   Couleurs : #141521 · #272940 · #9BA3FF · #FFFFFF
   Police : Funnel Sans
   ============================================= */

:root {
  /* Palette commune */
  --navy-900: #141521;
  --navy-800: #272940;
  --lavender: #9BA3FF;
  --white: #FFFFFF;

  /* Typographie */
  --font: 'Funnel Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Espacements */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 7rem;

  /* Rayons */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Ombres */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.15);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.2);
  --shadow-lg: 0 24px 64px rgba(0,0,0,0.3);

  /* Transitions */
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img, svg { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* =============================================
   NAVIGATION — fond navy
   ============================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(20, 21, 33, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(155, 163, 255, 0.08);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* Bouton retour accueil */
.nav-home {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.5);
  border: 1px solid rgba(255,255,255,0.1);
  transition: all var(--transition);
  flex-shrink: 0;
  margin-right: 0.75rem;
}

.nav-home:hover {
  color: #fff;
  border-color: rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.06);
}

/* Logo SVG dans le nav */
.nav-logo {
  display: block;
  height: 36px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  transition: color var(--transition);
}

.nav-links a:hover { color: #fff; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  color: #fff;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: var(--transition);
  border-radius: 2px;
}

/* =============================================
   BOUTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
  font-family: var(--font);
}

.btn-primary {
  background: var(--accent);
  color: var(--navy-900);
  box-shadow: 0 4px 20px var(--accent-shadow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px var(--accent-shadow);
  filter: brightness(1.05);
}

.btn-outline {
  border: 1.5px solid rgba(255,255,255,0.3);
  color: #fff;
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-lg {
  padding: 0.85rem 2rem;
  font-size: 0.95rem;
}

/* =============================================
   BADGE PREFIX  "/."  utilisé dans les titres
   ============================================= */
.prefix {
  color: var(--accent);
  font-weight: 800;
  margin-right: 0.1em;
}

/* =============================================
   SECTION HEADER COMMUN
   ============================================= */
section { padding: var(--space-lg) 0; }

.section-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

h1, h2, h3, h4 {
  font-family: var(--font);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 0.75rem;
}

.section-header h2 .prefix { color: var(--accent); }

.section-header p {
  font-size: 1rem;
  color: rgba(255,255,255,0.55);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Section à fond clair */
.section-light .section-header h2 { color: var(--navy-900); }
.section-light .section-header p { color: rgba(20,21,33,0.6); }
.section-light .section-label { color: var(--accent-dark, var(--accent)); }

/* =============================================
   GRILLES
   ============================================= */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

/* =============================================
   CARDS — fond navy
   ============================================= */
.card {
  background: var(--navy-800);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  transition: all var(--transition);
  border: 1px solid rgba(155,163,255,0.08);
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(155,163,255,0.2);
  box-shadow: 0 16px 40px rgba(0,0,0,0.3);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(155,163,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-sm);
  font-size: 1.4rem;
}

.card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.card p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
}

/* Card à fond clair */
.card-light {
  background: var(--white);
  border-color: rgba(20,21,33,0.08);
}

.card-light:hover {
  border-color: var(--accent);
  box-shadow: 0 12px 32px rgba(0,0,0,0.1);
}

.card-light h3 { color: var(--navy-900); }
.card-light p { color: rgba(20,21,33,0.6); }

/* =============================================
   STATS BAR
   ============================================= */
.stats-bar {
  background: var(--accent);
  padding: var(--space-md) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--navy-900);
}

.stat-label {
  font-size: 0.85rem;
  color: rgba(20,21,33,0.7);
  margin-top: 0.3rem;
  font-weight: 500;
}

/* =============================================
   HERO COMMUN
   ============================================= */
.hero {
  background: var(--navy-900);
  padding: var(--space-xl) 0 var(--space-lg);
  position: relative;
  overflow: hidden;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(155,163,255,0.1);
  border: 1px solid rgba(155,163,255,0.2);
  color: var(--lavender);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  letter-spacing: 0.02em;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.8rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: var(--space-sm);
  max-width: 680px;
  line-height: 1.1;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero p.lead {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.55);
  max-width: 520px;
  margin-bottom: var(--space-md);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* =============================================
   FORMULAIRE DE CONTACT
   ============================================= */
.contact-section { background: var(--navy-900); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.contact-info h3 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: var(--space-sm);
}

.contact-info p {
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.contact-detail-icon {
  width: 40px;
  height: 40px;
  background: rgba(155,163,255,0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.1rem;
}

.contact-detail-text strong {
  display: block;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.15rem;
}

.contact-detail-text span,
.contact-detail-text a {
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
}

.contact-detail-text a { color: var(--accent); }

.contact-form {
  background: var(--navy-800);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid rgba(155,163,255,0.1);
}

.contact-form h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1.5rem;
}

.form-group { margin-bottom: var(--space-sm); }

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(255,255,255,0.6);
  margin-bottom: 0.4rem;
  letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--navy-900);
  border: 1.5px solid rgba(155,163,255,0.15);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.95rem;
  color: var(--white);
  transition: border-color var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,0.25); }

.form-group select { color: rgba(255,255,255,0.6); }
.form-group select option { background: var(--navy-900); color: var(--white); }

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea { resize: vertical; min-height: 110px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

/* =============================================
   FOOTER — fond navy profond
   ============================================= */
.site-footer {
  background: #0D0E1A;
  color: rgba(255,255,255,0.6);
  padding: var(--space-lg) 0 var(--space-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid rgba(155,163,255,0.08);
  margin-bottom: var(--space-md);
}

.footer-logo { height: 28px; width: auto; margin-bottom: 1rem; }

.footer-brand p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
  line-height: 1.7;
}

.footer-links h4, .footer-contact h4 {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.3);
  margin-bottom: 1rem;
}

.footer-links ul li,
.footer-links ul a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 0.6rem;
  display: block;
  transition: color var(--transition);
}

.footer-links a:hover { color: #fff; }

.footer-contact a {
  display: block;
  font-size: 0.88rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.25);
}

.footer-bottom .switch-link {
  color: var(--lavender);
  font-weight: 500;
  transition: color var(--transition);
}

.footer-bottom .switch-link:hover { color: #fff; }

/* =============================================
   SECTION LUMINEUSE (fond blanc)
   ============================================= */
.section-white {
  background: #fff;
}

.section-gray {
  background: #F4F5FF;
}

/* =============================================
   PROCESSUS (étapes)
   ============================================= */
.process-steps {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 740px;
  margin: 0 auto;
}

.process-step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: var(--space-sm);
  align-items: start;
}

.step-number {
  width: 48px;
  height: 48px;
  background: var(--accent);
  color: var(--navy-900);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 800;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.25rem;
}

.step-content p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
}

/* =============================================
   FAQ
   ============================================= */
.faq-section {
  background: var(--white);
  padding: var(--space-lg) 0;
}

.faq-list {
  max-width: 740px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.faq-item {
  border-bottom: 1px solid rgba(20,21,33,0.1);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy-900);
  cursor: pointer;
  list-style: none;
  transition: color var(--transition);
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 300;
  color: rgba(20,21,33,0.3);
  flex-shrink: 0;
  margin-left: 1rem;
  transition: transform var(--transition);
}

.faq-item[open] summary::after {
  content: '−';
  color: var(--accent);
}

.faq-item summary:hover { color: var(--accent-dark, var(--accent)); }

.faq-item p {
  font-size: 0.92rem;
  color: rgba(20,21,33,0.6);
  line-height: 1.8;
  padding-bottom: 1.25rem;
  max-width: 660px;
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 72px 0 0;
    background: var(--navy-900);
    padding: var(--space-md);
    gap: var(--space-md);
    z-index: 99;
    overflow-y: auto;
  }
  .nav-toggle { display: flex; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { text-align: center; justify-content: center; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  section { padding: 3rem 0; }
}