.promo-details-section {
  background: var(--form-bg);
  color: var(--text-color);
  border-radius: 20px;
  box-shadow: 0 4px 20px 0 var(--form-shadow-color);
  width: min(820px, 94vw);
  margin: 0 auto 32px auto;
  padding: clamp(32px, 5vw, 48px) clamp(20px, 4vw, 40px);
  text-align: center;
  position: relative;
  z-index: 1;
  font-family: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.promo-title {
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  letter-spacing: 0.05em;
  color: var(--text-color);
  margin-bottom: clamp(24px, 4vw, 32px);
  font-weight: 700;
  width: 100%;
}

.promo-description {
  font-size: clamp(1.1rem, 1.8vw, 1.3rem);
  line-height: 1.5;
  margin-bottom: clamp(24px, 4vw, 32px);
  width: 100%;
  max-width: 85%;
  margin-left: auto;
  margin-right: auto;
}

#form-container {
  width: 100%;
  margin: 24px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0;
}

#form-placeholder {
  width: 100%;
  display: flex;
  justify-content: center;
}

form {
  width: 100%;
  max-width: 380px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.instagram-note {
  margin: 8px 0;
  font-size: 0.9rem;
  line-height: 1.4;
  text-align: center;
  color: var(--text-color);
}

.input-group {
  margin-bottom: 12px;
}

.instagram-input-group {
  margin-bottom: 16px;
}

.stay-updated-btn {
  width: 280px;
  margin: 0 auto;
  display: block;
  position: relative;
  z-index: 2;
}

.promo-legal-text {
  font-size: clamp(0.75rem, 1.2vw, 0.85rem);
  color: var(--privacy-text);
  margin-top: clamp(16px, 3vw, 24px);
  opacity: 0.85;
  line-height: 1.5;
  max-width: clamp(280px, 80%, 600px);
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 600px) {
  .promo-details-section {
    width: 92vw;
    padding: 24px 16px;
    border-radius: 16px;
  }
  
  .promo-title {
    font-size: 1.2rem;
    margin-bottom: 20px;
    text-align: center;
  }
  
  .promo-description {
    font-size: 1rem;
    margin-bottom: 20px;
    max-width: 100%;
    text-align: center;
  }
  
  #form-container {
    max-width: 92vw;
    margin: 24px auto 20px;
  }

  form {
    max-width: 280px;
  }

  .stay-updated-btn {
    max-width: 240px;
  }
  
  .promo-legal-text {
    font-size: 0.75rem;
    margin-top: 12px;
    text-align: center;
  }

  .instagram-note {
    font-size: 0.8rem;
    margin: 6px 0;
  }

  .input-group,
  .instagram-input-group {
    margin-bottom: 10px;
  }

  .form-expanded-content {
    padding: 0 12px;
  }
}