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

body {
  font-family: 'Arial', sans-serif;
  background-color: #fff;
  color: #333;
}

.header {
  background-color: #af1117;
  padding: 30px 0;
  text-align: center;
}

.logo {
  max-height: 100px;
  width: auto;
}

.nav-bar {
  background-color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 15px 0;
  gap: 15px;
  border-bottom: 1px solid #ccc;
}

.nav-bar a {
  text-decoration: none;
  color: #333;
  font-size: 18px;
  padding: 0 10px;
}

.divider {
  height: 20px;
  width: 2px;
  background-color: #333;
}

.hero {
  background-image: url(images/knjiga.jpg);
  background-size: cover;
  background-position: center;
  padding: 100px 20px;
  position: relative;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.text-box {
  background-color: white;
  padding: 30px 40px;
  border-radius: 25px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
  max-width: 400px;
  text-align: center;
  position: relative;
}

.text-box::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  width: 80%;
  height: 80%;
  background-color: #af1117;
  border-radius: 25px;
  z-index: -1;
}

.text-box h2 {
  font-size: 20px;
  color: #af1117;
  margin-bottom: 20px;
  font-weight: bold;
  text-shadow: 1px 1px 0 #00000030;
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  background-color: #af1117;
  color: white;
  text-decoration: none;
  font-weight: bold;
  border: none;
  margin-top: 10px;
  box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.2);
  transition: background-color 0.3s;
}

.btn:hover {
  background-color: #8e0e13;
}

p {
  font-size: larger;
  text-align: center;
  border: double crimson;
}

h2 {
  text-align: center;
  font-size: 45px;
}

img {
  display: block;
  margin-right: auto;
  margin-left: auto;
  width: 700px;
  height: 500px;
  border: double crimson;
}