* {
  /* universal */
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: 'Calibri';
}

body {
  background-color: #DCF2F1;
  margin: 0;
}

hr {
  margin-top: 5px;
  margin-bottom: 5px;
}

h1 {
 font-size: 20px;
}

h2 {
 font-size: 18px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid;
  border-bottom: 1px solid;
  padding: 10px;
  background-color: #0F1035;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
}

.head {
  padding: 5px;
  padding-right: 20px;
  padding-left: 20px;
  margin-left: 15px;
  font-weight: bold;
  font-size: 20px;
  color: #7FC7D9;
}

main {
  min-height: 630px;
  display: flex;
  justify-content: center;
  padding: 20px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.bar {
  display: flex;
  flex-direction: column;
  width: 10%;
  margin: 3px;
  border: solid 1px #DCF2F1;
  padding: 10px;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
  min-height: 630px;
}

.left, .right {
  display: flex;
  flex-direction: column;
  width: 45%;
  margin: 3px;
  border: solid 1px #DCF2F1;
  padding: 10px;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2); 
  min-height: 630px;
}

.content-case {
  border: 1px solid #7FC7D9;
  margin-bottom: 5px;
  min-height: 150px;
  border-radius: 5px;
  padding: 10px;
  background-color: #DCF2F1;
  color: #0F1035;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
  width: 100%;
  align-items: center;
}

.card-case {
  display: flex;
  flex-wrap: wrap;  
  justify-content: flex-start;
}

.card {
  border: 1px solid #7FC7D9;
  margin: 3px;
  border-radius: 5px;
  padding: 10px;
  background-color: #DCF2F1;
  color: #0F1035;
  
  width: 24%;
  font-size: 10px;
}

.card-header {
  min-height: 30px;
}

.card-body {
  min-height: 50px;
}

a {
  text-decoration: none;
  color: #0F1035; /* Biru ala Bootstrap */
  font-weight: bold;
  transition: color 0.2s ease;
}

a:hover {
  color: #0056b3;
  text-decoration: underline;
}

img {
  padding: 10px;
  outline: none;
  width: 100%;
}

button {
  padding: 5px;
  padding-left: 10px;
  padding-right: 10px;
  border-radius: 3px;
  border: 1px solid #0F1035;
  background-color: #0F1035;
  color: #DCF2F1;
  cursor: pointer;
  font-size: 14px;
  width: 100%;
  margin-bottom: 5px;
}

@media screen and (max-width: 1000px) {
  main {
    flex-direction: column;
  }

  .left,.bar,
  .right {
    width: 100%;
    min-height: 10px;
    flex-direction: column;
  }
  .card, button {
    width: 48%;
  }
  .bar {
    order: 0;
  }
  .left {
    order: 1;
  }
  .right {
    order: 2;
  }
}