.content-container {
    display: flex;
    justify-content: center;
    margin-top: 18px;
}

/* Login kutusu */
.content-box {
    background-color: #fff;
    color: #000;
    padding: 40px;
    border-radius: 10px;
    width: 80%;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    text-align: left;
}

/* Başlık */
.content-box h1 {
    margin-bottom: 30px;
    color: #990000;
}

/* Form elemanları */
.content-box input[type="text"],
.content-box input[type="password"] {
    width: 100%;
    padding: 12px;
    margin: 10px 0 20px 0;
    border: 1px solid #990000;
    border-radius: 5px;
    box-sizing: border-box;
}

/* Buton */
.content-box button {
    width: 100%;
    padding: 12px;
    background-color: #990000;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    transition: background-color 0.3s;
}

.content-box button:hover {
    background-color: #ff4d4d;
}