#karbon-asistani-container {
    max-width: 600px;
    margin: 20px auto;
    padding: 25px;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    font-family: sans-serif;
}

#karbon-asistani-container h2 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #34495e;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box; /* Önemli */
}

#hesapla-btn {
    width: 100%;
    padding: 12px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
}

#hesapla-btn:hover {
    background-color: #2980b9;
}

#hesapla-btn:disabled {
    background-color: #bdc3c7;
    cursor: not-allowed;
}

#sonuc-container {
    margin-top: 25px;
    padding: 20px;
    background-color: #fff;
    border: 1px solid #eee;
    border-radius: 5px;
}

#sonuc table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

#sonuc th, #sonuc td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

#sonuc th {
    background-color: #ecf0f1;
    color: #34495e;
}

#sonuc h3 {
    color: #2c3e50;
}

#loading {
    text-align: center;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-radius: 50%;
    border-top: 4px solid #3498db;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 10px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}