/* Fond général */
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: 'Poppins', sans-serif;
  color: #fff;
  display: flex;
  flex-direction: column;
}

/* Section principale */
main {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex: 1;
  padding: 4rem 1rem;
}

/* Conteneur des blocs */
.home-flex-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: center;
  gap: 2rem;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

/* Bloc slogan */
.hero-block {
  min-height: 420px;            
  flex-shrink: 0;
  align-self: flex-start;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(12px);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 0 25px rgba(0, 0, 0, 0.3);
  max-width: 500px;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Slogan */
.headline {
  font-size: 2.2rem;
  font-weight: 700;
  text-align: center;
  color: #ffffff;
  text-shadow: 0 0 12px rgba(0, 186, 255, 0.35);
  line-height: 1.3;
}

.headline span {
  display: block;
  margin-top: 0.4rem;
  color: #00baff;
}

.subline {
  margin-top: 1.5rem;
  font-size: 1.05rem;
  color: #f1f1f1;
  line-height: 1.6;
  text-align: center;
  opacity: 0.9;
}

/* Responsive */
@media screen and (max-width: 768px) {
  .home-flex-row {
    flex-direction: column;
    align-items: center;
  }

  .form-block,
  .hero-block {
    min-height: auto;
    height: auto;
  }
}