html {
    font-size: 14px;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
    position: relative;
    min-height: 100%;
}

body {
    margin-bottom: 60px;
    /*background: linear-gradient(135deg, #a8c0ff, #3f2b96);*/ /* Açık maviden mora doğru örnek bir gradient */
    background: linear-gradient(135deg, #232526, #414345);
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}

main-page-style {
    /* Arka plan gradient */

    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Open Sans', sans-serif;
    color: #fff; /* Metin rengi beyaz */
}

.container {
}

.container-main {
    text-align: center;
    padding: 2rem;
    background-color: rgba(0, 0, 0, 0.2); /* Hafif şeffaf kutu */
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    max-width: 800px; /* Maksimum genişlik */
    margin-left: auto;
    margin-right: auto;
}

.container-project {
    background-color: rgba(121,140,164,0.4);
    padding: 50px;
}

.display-4 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1rem;
    font-size: 3.5rem; /* Başlık boyutu */
}

.lead {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.btn-custom {
    background-color: #007bff; /* Mavi buton */
    border-color: #007bff;
    color: #fff;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

    .btn-custom:hover {
        background-color: #0056b3;
        border-color: #0056b3;
        color: #fff;
        transform: translateY(-2px); /* Hafif yukarı kalkma efekti */
    }

.footer-links a {
    color: #fff;
    margin: 0 15px;
    text-decoration: none;
    transition: color 0.3s ease;
}

    .footer-links a:hover {
        color: #cee2ff;
    }

/* Küçük ekranlar için başlık boyutu ayarı */
@media (max-width: 768px) {
    .display-4 {
        font-size: 2.5rem;
    }
}

#myTopBtn {
    display: none; /* Hidden by default */
    position: fixed; /* Fixed/sticky position */
    bottom: 20px; /* Place the button at the bottom of the page */
    right: 30px; /* Place the button 30px from the right */
    z-index: 99; /* Make sure it does not overlap */
    border: none; /* Remove borders */
    outline: none; /* Remove outline */
    background-color: red; /* Set a background color */
    color: white; /* Text color */
    cursor: pointer; /* Add a mouse pointer on hover */
    padding: 15px; /* Some padding */
    border-radius: 10px; /* Rounded corners */
    font-size: 18px; /* Increase font size */
}

    #myTopBtn:hover {
        background-color: #555; /* Add a dark-grey background on hover */
    }