body {
    background-color: #000000;
    color: #00ff00; /* Klasik Hacker Yeşili */
    font-family: 'Share Tech Mono', monospace;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.terminal-kutusu {
    border: 2px solid #00ff00;
    padding: 30px;
    width: 600px;
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.3);
    background-color: rgba(0, 20, 0, 0.8);
}

h1 {
    font-size: 24px;
    border-bottom: 1px dashed #00ff00;
    padding-bottom: 10px;
}

.sifre-ekrani {
    font-size: 35px;
    text-align: center;
    letter-spacing: 5px;
    margin: 30px 0;
    padding: 10px;
    background-color: #001a00;
    border: 1px solid #00ff00;
    text-shadow: 0 0 10px #00ff00; /* Neon parlama */
    transition: all 0.3s ease;
}

/* Progress bar (İlerleme çubuğu) tasarımı */
progress {
    width: 100%;
    height: 25px;
    appearance: none;
    -webkit-appearance: none;
    border: none;
}

progress::-webkit-progress-bar {
    background-color: #333;
    border: 1px solid #00ff00;
}

progress::-webkit-progress-value {
    background-color: #00ff00;
    box-shadow: 0 0 10px #00ff00;
}

button {
    background-color: #000;
    color: #00ff00;
    border: 2px solid #00ff00;
    padding: 15px;
    width: 100%;
    font-family: inherit;
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
    margin-top: 20px;
    transition: 0.2s;
}

button:hover {
    background-color: #00ff00;
    color: #000;
    box-shadow: 0 0 15px #00ff00;
}

button:disabled {
    background-color: #003300;
    color: #005500;
    border-color: #005500;
    cursor: not-allowed;
    box-shadow: none;
}

ul {
    list-style-type: none;
    padding: 0;
    color: #00cc00;
    font-size: 14px;
    height: 150px;
    overflow-y: auto;
    border: 1px dashed #005500;
    padding: 10px;
    margin-top: 20px;
    background-color: #000a00;
}

ul li {
    margin-bottom: 5px;
}