body {
    background-color: #f7f7f7;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}
.login-container {
    background: #ffffff;
    border-radius: 15px;
    padding: 80px;
    box-shadow: 0px 4px 15px rgba(0, 0, 0, 0.1);
    width: 650px; /* Ekranın genişliğini arttırdım */
    border: 3px solid black;
}
.login-container input{
    width: 400px;
    height: 50px;
}
.login-container h3 {
    margin-bottom: 20px;
    text-align: center;
}
.login-container img {
    display: block;
    margin: 0 auto 15px;
}
.form-control {
    margin-bottom: 15px;
}
.btn-custom {
    background-color: #00aaff;
    color: white;
    height: 50px;
}
.btn-custom:hover {
    background-color: #007acc;
}
.admin-button {
    margin-top: 15px;
    background-color: #f0ad4e;
    color: white;
    height: 50px;
}
.admin-button:hover {
    background-color: #ec971f;
}