/* ============================================================
   THEME.CSS — Bâtisseur Numérique
   Composants réutilisables
   ============================================================ */

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: var(--couleur-primaire);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.nav__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--couleur-blanc);
  text-decoration: none;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.nav__logo:hover {
  color: var(--couleur-gris-clair);
  text-decoration: none;
}

.nav__liens {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

.nav__lien {
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  transition: color var(--transition);
}

.nav__lien:hover {
  color: var(--couleur-blanc);
  text-decoration: none;
}

.nav__lien--actif {
  color: #ffffff;
  border-bottom: 2px solid var(--couleur-cta);
  padding-bottom: 2px;
}

.nav__cta {
  padding: 0.5rem 1.125rem;
  font-size: 0.9rem;
}

.nav__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--couleur-blanc);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav__mobile {
  display: none;
  flex-direction: column;
  gap: 0;
  background-color: var(--couleur-primaire-clair);
  padding: 0.5rem 0;
}

.nav__mobile.est-ouvert {
  display: flex;
}

.nav__mobile .nav__lien {
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.9);
}

.nav__mobile .btn-primaire {
  margin: 0.75rem 1.25rem 0.5rem;
  text-align: center;
  justify-content: center;
}

/* ---- Offset pour le contenu sous la nav fixe ---- */
.nav-offset {
  padding-top: 64px;
}

/* ---- Hero ---- */
.hero {
  position: relative;
  background-color: #15263f;
  background-image:
    repeating-linear-gradient(0deg,   transparent 0, transparent 39px, rgba(255,255,255,0.04) 39px, rgba(255,255,255,0.04) 40px),
    repeating-linear-gradient(90deg,  transparent 0, transparent 39px, rgba(255,255,255,0.04) 39px, rgba(255,255,255,0.04) 40px),
    linear-gradient(135deg, #15263f 0%, #1a2e4a 65%, #1e3454 100%);
  color: var(--couleur-blanc);
  padding: 4.5rem 1.25rem 3.5rem;
  text-align: center;
  overflow: hidden;
}

.hero__inner {
  max-width: 780px;
  margin: 0 auto;
}

.hero h1 {
  color: var(--couleur-blanc);
  margin-bottom: 1.25rem;
}

.hero__sous-titre {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 2rem;
  line-height: 1.65;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ---- Hero accueil (index.html seulement) ---- */
.hero--accueil .hero__inner {
  max-width: 1100px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 2.5rem;
}

.hero__texte {
  text-align: left;
}

.hero__accent {
  text-decoration-line: underline;
  text-decoration-color: var(--couleur-cta);
  text-decoration-thickness: 3px;
  text-decoration-style: wavy;
  text-underline-offset: 6px;
}

.hero__reassurance {
  margin-top: 1.25rem;
  margin-bottom: 0;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.42);
  letter-spacing: 0.01em;
  overflow-wrap: break-word;
}

/* ---- Visuel flux IA ---- */
.hero__visuel {
  width: 100%;
  max-width: 380px;
  margin: 0 auto;
}

.flux-ia {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--rayon-grand);
  overflow: hidden;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.flux-ia__bande {
  height: 4px;
  background: linear-gradient(90deg, var(--couleur-accent), var(--couleur-accent-clair));
}

.flux-ia__corps {
  padding: 1.375rem 1.25rem;
}

.flux-ia__eyebrow {
  display: inline-flex;
  align-items: center;
  font-size: 0.5625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--couleur-cta-clair);
  background: rgba(5, 150, 105, 0.18);
  border: 1px solid rgba(5, 150, 105, 0.32);
  border-radius: 999px;
  padding: 0.2rem 0.625rem;
  margin-bottom: 1rem;
}

.flux-etape__label {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.flux-etape__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.375rem;
  height: 1.375rem;
  border-radius: 50%;
  background: rgba(37, 99, 168, 0.5);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.6875rem;
  font-weight: 700;
  flex-shrink: 0;
}

.flux-etape__num--ia {
  background: transparent;
  border: 1px solid rgba(59, 130, 246, 0.6);
  color: var(--couleur-accent-clair);
  font-size: 0.625rem;
}

.flux-etape__num--ok {
  background: rgba(5, 150, 105, 0.45);
  color: var(--couleur-cta-clair);
}

.flux-etape__texte {
  font-size: 0.8125rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.88);
  min-width: 0;
  overflow-wrap: break-word;
}

.flux-mini-form {
  display: flex;
  flex-direction: column;
  gap: 0.3125rem;
  margin-top: 0.625rem;
  padding-left: 2rem;
}

.flux-champ {
  height: 7px;
  background: rgba(255, 255, 255, 0.16);
  border-radius: 3px;
}

.flux-champ--court {
  width: 60%;
}

.flux-connecteur {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0.5rem 0;
}

.flux-connecteur__ligne {
  width: 1px;
  height: 18px;
  background: rgba(255, 255, 255, 0.2);
}

.flux-connecteur__fleche {
  font-size: 0.625rem;
  color: rgba(255, 255, 255, 0.3);
  line-height: 1;
  margin-top: 1px;
}

.flux-ia-dots {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: 0.625rem;
  padding-left: 2rem;
}

.flux-ia-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--couleur-accent-clair);
}

.flux-doc {
  margin-top: 0.625rem;
  padding: 0.625rem 0.75rem;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 6px;
  margin-left: 2rem;
}

.flux-doc__titre {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 0.5rem;
  overflow-wrap: break-word;
}

.flux-doc__lignes {
  display: flex;
  flex-direction: column;
  gap: 0.3125rem;
  margin-bottom: 0.5rem;
}

.flux-doc__ligne {
  height: 5px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
}

.flux-doc__ligne--court { width: 50%; }
.flux-doc__ligne--moyen { width: 72%; }

.flux-doc__coche {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--couleur-cta-clair);
  margin-bottom: 0;
}

/* ---- Animations flux IA ---- */
@keyframes flux-visuel-in {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes flux-dot-pulse {
  0%, 100% { opacity: 0.25; transform: scale(0.75); }
  50%       { opacity: 1;    transform: scale(1); }
}

@media (prefers-reduced-motion: no-preference) {
  .hero__visuel {
    animation: flux-visuel-in 550ms ease both 250ms;
  }
  .flux-ia-dot:nth-child(1) { animation: flux-dot-pulse 1.8s ease-in-out infinite 0s; }
  .flux-ia-dot:nth-child(2) { animation: flux-dot-pulse 1.8s ease-in-out infinite 0.35s; }
  .flux-ia-dot:nth-child(3) { animation: flux-dot-pulse 1.8s ease-in-out infinite 0.7s; }
}

/* ---- Section générique ---- */
.section {
  padding: 3.5rem 1.25rem;
}

.section__inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section--fond-alt {
  background-color: var(--couleur-surface-tintee);
}

.section__en-tete {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section__en-tete h2 {
  margin-bottom: 0.75rem;
}

.section__en-tete p {
  font-size: 1.0625rem;
  color: var(--couleur-gris);
  max-width: 640px;
  margin: 0 auto;
}

/* ---- Grille ---- */
.grille-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.grille-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.grille-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

/* ---- Carte ---- */
.carte {
  background-color: var(--couleur-blanc);
  border: 1px solid var(--couleur-gris-clair);
  border-radius: var(--rayon-grand);
  padding: 1.75rem;
  box-shadow: var(--ombre);
  transition: box-shadow var(--transition), transform var(--transition);
}

.carte:hover {
  box-shadow: var(--ombre-hover);
  transform: translateY(-2px);
}

.carte__icone {
  font-size: 2rem;
  margin-bottom: 1rem;
  display: block;
}

.carte__numero {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background-color: var(--couleur-accent);
  color: var(--couleur-blanc);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  flex-shrink: 0;
}

.carte h3 {
  margin-bottom: 0.625rem;
}

.carte p {
  color: var(--couleur-gris);
  font-size: 0.9375rem;
  margin-bottom: 0;
}

/* ---- Carte forfait ---- */
.carte-forfait {
  display: flex;
  flex-direction: column;
}

.carte-forfait__prix {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--couleur-accent);
  margin-bottom: 0.25rem;
}

.carte-forfait__duree {
  font-size: 0.875rem;
  color: var(--couleur-gris);
  margin-bottom: 1rem;
}

.carte-forfait__desc {
  flex: 1;
  margin-bottom: 1.5rem;
}

.carte-forfait--vedette {
  background-color: rgba(37, 99, 168, 0.05);
  border-color: var(--couleur-accent);
  box-shadow: 0 6px 28px rgba(37, 99, 168, 0.18), var(--ombre);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.carte-forfait--vedette::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--couleur-primaire), var(--couleur-accent));
}

/* ---- Section IA ---- */
.section-ia {
  background-color: var(--couleur-primaire);
  color: var(--couleur-blanc);
}

.section-ia h2 {
  color: var(--couleur-blanc);
  margin-bottom: 1.25rem;
}

.section-ia__texte p {
  color: rgba(255, 255, 255, 0.82);
}

.section-ia__grille {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.section-ia__cta {
  display: inline-flex;
  align-items: center;
  margin-top: 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--couleur-cta-clair);
  text-decoration: none;
  border-bottom: 1.5px solid rgba(16, 185, 129, 0.4);
  padding-bottom: 0.125rem;
  transition: color var(--transition), border-color var(--transition);
}

.section-ia__cta:hover {
  color: var(--couleur-cta);
  border-color: var(--couleur-cta);
  text-decoration: none;
}

/* ---- Carte cahier des charges ---- */
.cdc-carte {
  background: var(--couleur-blanc);
  border-radius: var(--rayon-grand);
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.28);
}

.cdc-carte__bande {
  height: 5px;
  background: linear-gradient(90deg, var(--couleur-primaire), var(--couleur-accent));
}

.cdc-carte__corps {
  padding: 1.375rem 1.625rem 1.625rem;
}

.cdc-label {
  display: inline-block;
  font-size: 0.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--couleur-accent);
  background: var(--couleur-info);
  padding: 0.2rem 0.625rem;
  border-radius: 999px;
  margin-bottom: 0.875rem;
}

.cdc-titre {
  font-family: var(--police-titres);
  font-size: 1.0625rem;
  color: var(--couleur-primaire);
  line-height: 1.3;
  margin-bottom: 1.25rem;
}

.cdc-bloc {
  margin-bottom: 0.875rem;
}

.cdc-bloc:last-child {
  margin-bottom: 0;
}

.cdc-bloc__label {
  font-size: 0.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--couleur-gris);
  margin-bottom: 0.375rem;
}

.cdc-bloc__texte {
  font-size: 0.875rem;
  color: var(--couleur-texte);
  line-height: 1.55;
  margin-bottom: 0;
}

.cdc-forfait {
  display: inline-flex;
  align-items: center;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--couleur-accent);
  background: rgba(37, 99, 168, 0.08);
  border: 1.5px solid rgba(37, 99, 168, 0.22);
  border-radius: var(--rayon);
  padding: 0.375rem 0.75rem;
}

.cdc-bloc--vedette {
  background: rgba(37, 99, 168, 0.07);
  border-left: 3px solid var(--couleur-accent);
  border-radius: 0 var(--rayon) var(--rayon) 0;
  padding: 0.75rem 0.875rem;
}

.cdc-bloc--vedette .cdc-bloc__label {
  color: var(--couleur-accent);
}

.cdc-questions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 0;
}

.cdc-questions li {
  position: relative;
  font-size: 0.8125rem;
  color: var(--couleur-texte);
  line-height: 1.45;
  padding-left: 1.125rem;
}

.cdc-questions li::before {
  content: '?';
  position: absolute;
  left: 0;
  font-weight: 700;
  font-size: 0.75rem;
  color: var(--couleur-accent);
}

/* Animation carte CDC */
@keyframes cdc-carte-in {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: no-preference) {
  .section-ia .cdc-carte {
    animation: cdc-carte-in 600ms ease both 100ms;
  }
}

/* ---- CTA centré ---- */
.cta-centre {
  text-align: center;
  padding: 2rem 1.25rem;
  background-color: var(--couleur-fond);
}

.cta-centre p {
  color: var(--couleur-gris);
  margin-bottom: 1.25rem;
}

/* ---- Consentement formulaire (Loi 25) ---- */
.consentement {
  margin-top: 2rem;
  padding: 1.25rem 1.5rem;
  background: rgba(37, 99, 168, 0.06);
  border: 1.5px solid rgba(37, 99, 168, 0.2);
  border-radius: var(--rayon);
}

.consentement__label {
  display: flex;
  gap: 0.875rem;
  align-items: flex-start;
  cursor: pointer;
}

.consentement__label input[type="checkbox"] {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  margin-top: 0.125rem;
  accent-color: var(--couleur-accent);
  cursor: pointer;
}

.consentement__texte {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--couleur-texte);
}

.consentement__lien {
  font-size: 0.875rem;
  color: var(--couleur-accent);
  text-decoration: underline;
}

.consentement__lien:hover {
  color: var(--couleur-primaire);
}

/* ---- Footer ---- */
.footer {
  background-color: var(--couleur-primaire);
  color: rgba(255, 255, 255, 0.75);
  padding: 3rem 1.25rem 2rem;
  text-align: center;
}

.footer__inner {
  max-width: 860px;
  margin: 0 auto;
}

.footer__cta {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer__cta-phrase {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 1.25rem;
}

.footer__liens {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.375rem 0.625rem;
  margin-bottom: 1.75rem;
}

.footer__lien {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  transition: color var(--transition);
}

.footer__lien:hover {
  color: var(--couleur-blanc);
  text-decoration: none;
}

.footer__sep {
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.8rem;
}

.footer__bas {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.25rem;
}

.footer__copyright {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 0;
}

.footer__rprp {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 0.5rem;
  margin-bottom: 0;
}

.footer__lien-bas {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  transition: color var(--transition);
}

.footer__lien-bas:hover {
  color: var(--couleur-blanc);
  text-decoration: none;
}

/* ---- Squelette de page (pages intérieures) ---- */
.page-interieure {
  padding: 4rem 1.25rem 3rem;
}

.page-interieure__inner {
  max-width: 860px;
  margin: 0 auto;
}

.placeholder-contenu {
  background-color: var(--couleur-gris-clair);
  border-radius: var(--rayon);
  padding: 2rem;
  text-align: center;
  color: var(--couleur-gris);
  font-style: italic;
}

/* ============================================================
   MEDIA QUERIES
   ============================================================ */

/* ---- Tablette (768px) ---- */
@media (min-width: 768px) {
  .nav__liens {
    display: flex;
  }

  .nav__toggle {
    display: none;
  }

  .nav__mobile {
    display: none !important;
  }

  .hero {
    padding: 5.5rem 2rem 4.5rem;
  }

  .hero__sous-titre {
    font-size: 1.25rem;
  }

  .hero--accueil .hero__inner {
    gap: 3rem;
  }

  .section {
    padding: 4.5rem 2rem;
  }

  .grille-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grille-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grille-4 {
    grid-template-columns: repeat(2, 1fr);
  }

}

/* ---- Desktop (1024px) ---- */
@media (min-width: 1024px) {
  .hero {
    padding: 6.5rem 2rem 5.5rem;
  }

  .hero--accueil .hero__inner {
    flex-direction: row;
    align-items: center;
    gap: 4rem;
  }

  .hero__texte { flex: 3; }

  .hero__visuel {
    flex: 0 0 auto;
    max-width: 320px;
    margin: 0;
    width: auto;
  }

  .grille-3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .grille-4 {
    grid-template-columns: repeat(4, 1fr);
  }

  .section-ia__grille {
    flex-direction: row;
    align-items: center;
    gap: 3.5rem;
  }

  .section-ia__visuel {
    flex: 0 0 44%;
    order: -1;
  }

  .section-ia__texte {
    flex: 1;
  }

  .carte-forfait--vedette {
    transform: scale(1.02);
  }

  .carte-forfait--vedette:hover {
    transform: scale(1.02) translateY(-2px);
  }
}