.app-hero {
  background: linear-gradient(135deg, #4A90E2 0%, #5DADE2 100%);
  color: white;
  padding: 5rem 5% 4rem;
  text-align: center;
}

.app-hero img {
  width: 100px;
  height: 100px;
  border-radius: 20px;
  margin-bottom: 2rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.app-hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.tagline {
  font-size: 1.3rem;
  opacity: 0.95;
  font-weight: 300;
}

.section {
  max-width: 1000px;
  margin: 0 auto;
  padding: 4rem 5%;
}

.section h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: #4A90E2;
  text-align: center;
}

.description {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #555;
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(74, 144, 226, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(74, 144, 226, 0.2);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  color: #4A90E2;
  margin-bottom: 0.5rem;
}

.screenshots {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.screenshot-placeholder {
  aspect-ratio: 9/16;
  background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #999;
  font-size: 1rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.download-section {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 4rem 5%;
  text-align: center;
}

.download-buttons {
  display: flex;
  gap: 2rem;
  justify-content: center;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.download-btn {
  background: white;
  padding: 1rem 2rem;
  border-radius: 12px;
  text-decoration: none;
  color: #333;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.download-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.download-btn .icon {
  font-size: 2rem;
}

.faq-section {
  background: white;
}

.faq-item {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: #f8f9fa;
  border-radius: 10px;
  border-left: 4px solid #4A90E2;
}

.faq-question {
  font-weight: 600;
  color: #4A90E2;
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.faq-answer {
  color: #555;
  line-height: 1.7;
}

.contact-section {
  background: #4A90E2;
  color: white;
  padding: 4rem 5%;
}

.contact-container {
  max-width: 600px;
  margin: 0 auto;
}

.contact-section h2 {
  color: white;
  margin-bottom: 1rem;
}

.contact-intro {
  text-align: center;
  margin-bottom: 2rem;
  opacity: 0.95;
}

.success-message {
  background: #4caf50;
  color: white;
  padding: 1rem;
  border-radius: 5px;
  margin-bottom: 1rem;
  text-align: center;
  display: none;
}

.success-message p {
  margin: 0;
  font-weight: 500;
}

.contact-form {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  color: #333;
}

.form-group {
  position: relative;
  margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid #ddd;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #4A90E2;
}

.form-group label {
  position: absolute;
  left: 1rem;
  top: 1rem;
  color: #666;
  pointer-events: none;
  transition: all 0.3s ease;
  background: white;
  padding: 0 0.3rem;
}

.form-group input:focus+label,
.form-group input:not(:placeholder-shown)+label,
.form-group textarea:focus+label,
.form-group textarea:not(:placeholder-shown)+label {
  top: -0.7rem;
  left: 0.7rem;
  font-size: 0.85rem;
  color: #4A90E2;
}

.submit-btn {
  width: 100%;
  padding: 1rem;
  background: #FF6B6B;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s ease;
}

.submit-btn:hover {
  background: #E74C3C;
}

@media (max-width: 768px) {
  .app-hero h1 {
    font-size: 2rem;
  }

  .tagline {
    font-size: 1.1rem;
  }

  .features {
    grid-template-columns: 1fr;
  }

  .screenshots {
    grid-template-columns: 1fr;
  }

  .download-buttons {
    flex-direction: column;
    align-items: center;
  }
}