body {
  font-family: "Segoe UI", Helvetica, Arial, sans-serif;
  color: #333333;
  line-height: 1.6;
  max-width: 600px;
  margin: 40px auto; 
  padding: 0 20px;
}

h1 {
  color: #c62828; 
  border-bottom: 2px solid #eceff1;
  padding-bottom: 10px;
}

h2 {
  margin-bottom: 5px;
}

.brand {
  color: #757575;
  font-size: 14px;
  text-transform: uppercase;
  font-weight: bold;
  letter-spacing: 1px;
}

.card-container {
  display: flex;
  flex-wrap: wrap;       
  gap: 20px;          
  justify-content: center; 
  margin-top: 30px;
}

.catalog-card {
  background-color: #ffffff;   
  border: 1px solid #e0e0e0; 
  border-radius: 8px;         
  padding: 20px;            
  width: 280px;               
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05); 
  text-align: left;            
}

.catalog-card h2 {
  font-size: 18px;
  color: #1a1a1a;
  margin: 5px 0 10px 0; 
}

.catalog-card .brand {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #d32f2f;
  font-weight: bold;
}

.catalog-card .description {
  font-size: 14px;
  color: #666666;
  line-height: 1.5;
}


.title {
  color:  #FF0000;
  font-size: 40px;
  font-weight: bold;
  text-align: center;
}

.description {
  color: #555555;
}


.button {
  display: inline-block;
  background-color: #d32f2f; 
  color: #ffffff;            
  padding: 10px 20px;
  border-radius: 4px;
  text-decoration: none;   
  font-weight: bold;
}

.button-center {
  display: inline-block;
  background-color: #d32f2f; 
  color: #ffffff;            
  padding: 10px 20px;
  border-radius: 4px;
  text-decoration: none;   
  font-weight: bold;
  text-align: center;
}

.button:hover {
  background-color: #b71c1c;
}

.color-white {
  color: #ffffff;
}

.button-center:hover {
  background-color: #b71c1c;
}

body {
  background-color: #ffffff;
  color: #333333;
  transition: background-color 0.3s ease, color 0.3s ease;
}

body.dark-mode {
  background-color: #121212;
  color: #f5f5f5;
}

body.dark-mode a {
  color: #bb86fc;
}