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

body {
  font-family: 'Helvetica', Arial, sans-serif;
  color: #333;
  line-height: 1.6;
  padding: 30px 20px;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  background: white;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  padding: 40px;
}

h1 {
  color: #003366;
  font-size: 2.2rem;
  margin-bottom: 30px;
  padding-bottom: 15px;
  border-bottom: 2px solid #003366;
  text-align: center;
}

.section {
  margin-bottom: 40px;
}


.section-content {
  display: flex;
  flex-wrap: wrap;
  gap: 25px;
  align-items: flex-start;
}

.text-box {
  flex: 2;
  min-width: 300px;
}

.text-box p {
  margin-bottom: 15px;
  font-size: 1.05rem;
  text-align: justify;
  
}


.back-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #f0f7ff;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: #3b82f6;
    padding: 10px 18px;
    transition: all 0.2s;
    font-weight: 600;
    border-radius: 50%;
    border-left: 5px solid #1a5fb4;
}

.back-button:hover {
    color: #2563eb;
    transform: translateX(-4px);
}

.back-button:active {
    transform: translateX(-2px);
}


.back-button .text {
    font-family: inherit;
    font-size: 1rem;
}



.model-container {
    width: 100%;
    max-width: 1000px;
    margin: 10px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  
}

model-viewer{
    width: 1000px;
    height: 500px;
}