body {
    background-color: #0d0d0d; /* Koyu siyah/füme */
    color: #ffffff;
    font-family: 'Helvetica', Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    text-align: center;
}

.container {
    padding: 20px;
}

.logo {
    width: 150px;
    margin-bottom: 30px;
}

h1 {
    font-size: 3rem;
    font-weight: 300;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

p {
    color: #888;
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border: 1px solid #fff;
    color: #fff;
    text-decoration: none;
    transition: 0.3s;
}

.btn:hover {
    background-color: #fff;
    color: #000;
}
.logo-text {
    font-size: 24px;
    font-weight: bold;
    letter-spacing: 5px;
    margin-bottom: 40px;
    border: 2px solid #fff;
    padding: 10px 20px;
    display: inline-block;
}