@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;600;700&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: #C94344;
  color: #FFFFFF;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  line-height: 1.6;
}

.welcome-container {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
}

.welcome-content {
  text-align: center;
  padding: 40px 20px;
}

.welcome-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 40px;
  line-height: 1.2;
}

.welcome-instruction {
  margin-bottom: 50px;
}

.instruction-text {
  font-size: 1.125rem;
  font-weight: 400;
  margin-bottom: 30px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.instruction-text strong {
  font-weight: 600;
}

.screenshot-container {
  margin: 30px auto;
  max-width: 800px;
  text-align: center;
}

.screenshot-image {
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: 8px;
  display: block;
  margin: 0 auto;
  object-fit: contain;
  min-height: 200px;
}

.screenshot-image[src=""],
.screenshot-image:not([src]) {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Ctext x='50%25' y='50%25' font-size='60' text-anchor='middle' dominant-baseline='middle' fill='%23ffffff' opacity='0.5'%3E📷%3C/text%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 80px 80px;
}

.screenshot-caption {
  margin-top: 15px;
  font-size: 1rem;
  font-weight: 500;
  color: #FFFFFF;
}

.welcome-button {
  background-color: #FFFFFF;
  color: #C94344;
  border: none;
  padding: 16px 40px;
  font-size: 1.125rem;
  font-weight: 600;
  font-family: 'Roboto', sans-serif;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  min-width: 250px;
}

.welcome-button:hover {
  background-color: #F5F5F5;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.welcome-button:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.welcome-button:focus {
  outline: 3px solid rgba(255, 255, 255, 0.5);
  outline-offset: 2px;
}

/* Mobile-first responsive design */
@media (max-width: 768px) {
  .welcome-title {
    font-size: 2rem;
    margin-bottom: 30px;
  }
  
  .instruction-text {
    font-size: 1rem;
    margin-bottom: 25px;
  }
  
  .screenshot-container {
    margin: 25px auto;
  }
  
  .screenshot-image {
    min-height: 180px;
  }
  
  .screenshot-caption {
    font-size: 0.9375rem;
    margin-top: 12px;
  }
  
  .welcome-button {
    font-size: 1rem;
    padding: 14px 32px;
    min-width: 200px;
  }
  
  .welcome-content {
    padding: 30px 15px;
  }
}

@media (max-width: 480px) {
  .welcome-title {
    font-size: 1.75rem;
    margin-bottom: 25px;
  }
  
  .instruction-text {
    font-size: 0.9375rem;
  }
  
  .welcome-button {
    font-size: 0.9375rem;
    padding: 12px 28px;
    min-width: 180px;
  }
}