body {
    background-color: #000000;
    color: #00ff00;
    font-family: 'Share Tech Mono', monospace;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
}

.terminal-kutusu {
    border: 2px solid #00ff00;
    padding: 30px;
    width: 100%;
    max-width: 650px;
    box-shadow: 0 0 25px rgba(0, 255, 0, 0.35);
    background-color: rgba(0, 20, 0, 0.9);
    border-radius: 8px;
}

.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(0, 255, 0, 0.2);
    padding-bottom: 10px;
}

.geri-link {
    color: #00ff00;
    text-decoration: none;
    font-size: 13px;
    font-weight: bold;
}

.geri-link:hover {
    color: #ffffff;
    text-shadow: 0 0 8px #00ff00;
}

.developer-tag {
    font-size: 11px;
    color: #00cc00;
    opacity: 0.8;
}

h1 {
    font-size: 22px;
    border-bottom: 1px dashed #00ff00;
    padding-bottom: 10px;
    margin-bottom: 8px;
    text-shadow: 0 0 10px rgba(0, 255, 0, 0.5);
}

header p {
    color: #00bb00;
    font-size: 14px;
    margin-bottom: 20px;
}

.sifre-ekrani {
    font-size: 32px;
    text-align: center;
    letter-spacing: 4px;
    margin: 20px 0;
    padding: 15px;
    background-color: #001a00;
    border: 1px solid #00ff00;
    text-shadow: 0 0 12px #00ff00;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.label-text {
    margin-bottom: 8px;
    font-size: 14px;
}

#yuzdeYazi {
    text-align: right;
    font-size: 13px;
    margin-top: 5px;
    color: #00dd00;
}

progress {
    width: 100%;
    height: 22px;
    border: 1px solid #00ff00;
    background-color: #111;
}

progress::-webkit-progress-value { background-color: #00ff00; }
progress::-webkit-progress-bar { background-color: #111; }

button {
    background-color: #000;
    color: #00ff00;
    border: 2px solid #00ff00;
    padding: 14px;
    width: 100%;
    font-family: inherit;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    margin-top: 20px;
    margin-bottom: 25px;
    transition: 0.2s;
    border-radius: 4px;
}

button:hover:not(:disabled) {
    background-color: #00ff00;
    color: #000;
    box-shadow: 0 0 15px #00ff00;
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.log-header {
    font-size: 13px;
    margin-bottom: 6px;
    color: #00ff00;
}

ul {
    list-style-type: none;
    padding: 10px;
    color: #00cc00;
    font-size: 13px;
    height: 120px;
    overflow-y: auto;
    border: 1px dashed #005500;
    background-color: rgba(0, 10, 0, 0.8);
    border-radius: 4px;
}

ul li {
    margin-bottom: 4px;
    line-height: 1.4;
}