body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #fff;
  color: #333;
}

.header {
  background: #1A2862;;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo img {
  height: 60px;
}

.menu-topnav ul {
  list-style: none;
  display: flex;
  gap: 20px;
}

.menu-topnav ul li {
  position: relative;
}

.menu-topnav ul li a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
}

.menu-topnav ul li ul {
  display: none;
  position: absolute;
  background: #1A82B2;
  padding: 10px;
  list-style: none;
}

.menu-topnav ul li:hover ul {
  display: block;
}

.menu-topnav ul li a.highlight {
  color: #FFD54F;
}

#slider {
  position: relative;
  width: 100%;
  height: 400px; /* istersen 100vh yapabilirsin */
  overflow: hidden;
}

#slider img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;

  opacity: 0;
  transition: opacity 1s ease;
}

#slider img.active {
  opacity: 1;
  transform: scale(1);
}


/* ORTA YAZI */
#caption {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);

  color: navy;
  
  padding: 15px 30px;
  font-size: 65px;
  text-shadow: 0 0 10px white;
  font-weight: bold;
  text-align: center;

  border-radius: 6px;

  opacity: 0;
  transition: 0.6s ease;
}

#caption.show {
  opacity: 1;
}

main {
  background-color: #304390;
  color: white;
  padding: 20px;
  text-align: center;
  margin: auto;

}


body {
  font-family: Arial;
  margin: 0;
  background: #f0f0f0;
}

/* HEADER */
.header {
  background: navy;
  color: white;
  padding: 20px;
}

/* NAV */
.nav {
  background: white;
  padding: 10px;
}

.nav a {
  color: white;
  margin-right: 15px;
  text-decoration: none;
}

/* CONTENT */
.content {
  display: flex;
  padding: 20px;
}

.main {
  flex: 3;
  background: #1a82b236;
  padding: 45px;
  
  

}

.sidebar {
  flex: 1;
  background: #e6e6e6;
  padding: 15px;
}

/* FOOTER */
footer {
  background: navy;
  color: white;
  text-align: center;
  padding: 11px;
  
}