header {
    background: #eeb365;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    position: sticky;
    top: 0;
    z-index: 999;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  }
  
  .logo {
    font-size: 1.5em;
  }
  
  .menu {
    display: flex;
    gap: 10px;
  }
  
  .tab {
    background: none;
    border: none;
    color: rgb(22, 22, 22);
    padding: 10px 18px;
    font-weight: bold;
    font-size: 14px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
  }
  
  .tab::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0%;
    height: 2px;
    background: white;
    transition: all 0.3s ease;
    transform: translateX(-50%);
  }
  
  .tab:hover::after {
    width: 100%;
  }
  
  .actions {
    display: flex;
    gap: 15px;
    align-items: center;
  }
  
  .sepet-btn {
    background: none;
    color: rgb(218, 230, 227);
    font-weight: bold;
    font-size: 16px;
    text-decoration: none;
    padding: 8px 12px;
    border: none;
    cursor: pointer;
    transition: 0.3s ease;
    position: relative;
    text-shadow: 2px 2px 5px gray;
  }
  
  .sepet-btn:hover {
    color: #0f6;
  }
  
  .sepet-btn::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0%;
    height: 2px;
    background: #0b8;
    transition: all 0.3s ease;
    transform: translateX(-50%);
  }
  
  .sepet-btn:hover::after {
    width: 100%;
  }
  
  /* Giriş Sayfası Özel Stili */
  .giris-container {
    width: 350px;
    margin: 100px auto;
    padding: 30px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
    text-align: center;
  }
  
  h2 {
    font-size: 24px;
    color: #333;
  }
  
  form {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  
  label {
    text-align: left;
    font-size: 14px;
    color: #555;
  }
  
  input {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 16px;
    width: 100%;
    transition: border-color 0.3s ease;
  }
  
  input:focus {
    border-color: #eeb365;
    outline: none;
  }
  
  button {
    padding: 12px;
    background-color: #28a745;
    color: white;
    font-size: 16px;
    font-weight: bold;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  
  button:hover {
    background-color: #218838;
  }
  
  p {
    font-size: 14px;
    color: #555;
  }
  
  p a {
    color: #28a745;
    text-decoration: none;
  }
  
  p a:hover {
    text-decoration: underline;
  }
  
  /* Mobil Menü ve Responsive */
  @media (max-width: 768px) {
    header {
      flex-direction: column;
      align-items: flex-start;
    }
  
    .menu {
      display: none;
    }
  
    .hamburger {
      display: block;
    }
  }