.giris {
    position: relative;
    overflow: visible;
}

.blurlu-kutu {
    position: fixed;
    border-radius: 3px;
    color: white;
    backdrop-filter: brightness(1.3) blur(2px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    background: radial-gradient(circle 800px at center, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.3) 40%);
    transition: background 0.2s ease;
}