/* Genel yapı */
body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
  }
  
  /* Arka planlı giriş ekranı */
  .bolum1 {
    min-height: 100vh;
    margin-top: 0px;
    background-image: url('image/bg.jpg');
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.7);
}

.wrapper {
    background-color: #0d0d0e;
    width: 500px;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
    text-align: center;
    color: #f1f1f1;
}
  
  /* Başlık */
  .wrapper h2 {
    text-align: center;
    margin-bottom: 20px;
  }
  
  /* Etiketler */
  label {
    display: block;
    margin-bottom: 6px;
    font-weight: bold;
  }
  
  /* Input alanları */
  input[type="text"],
  input[type="password"] {
    box-sizing: border-box; /* bu satır eklendi */
  width: 100%;
  padding: 12px;
  margin-bottom: 15px;
  border: 1px solid #444;
  background-color: #1a1a1a;
  color: white;
  border-radius: 6px;
  }
  
  /* Hatalar */
  .invalid-feedback {
    color: #ff4d4d;
    font-size: 13px;
    margin-top: -10px;
    margin-bottom: 10px;
    display: block;
  }
  
  input[type="submit"] {
    border: 2px solid #81f376;
    background-color: #0d0d0e;
    color: #81f376;
    font-size: 16px;
    padding: 12px;
    width: 28%;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    margin-top: 10px;
  }
  
  input[type="submit"]:hover {
    text-decoration: underline;
    background-color: #81f376;
    color: #0d0d0e;
  }
  
  a.btn {
    margin-left: 2%;
  }
  
  a.btn {
    display: inline-block;
    text-decoration: none;
    border: 2px solid #81f376;
    background-color: #0d0d0e;
    color: #81f376;
    font-size: 16px;
    padding: 12px;
    width: 28%;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    margin-top: 10px;
  }
  
  a.btn:hover {
    text-decoration: underline;
    background-color: #81f376;
    color: #0d0d0e;
  }
  
  a {
    color: #81f376;
    font-weight: bold;
    text-decoration: none;
  }
  
  a:hover {
    text-decoration: underline;
  }