/* Basis-Styling */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 20px;
    background-color: #f5f7fa;
    color: #333;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 25px;
}

/* Formular-Elemente */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
}

input, select {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s;
    box-sizing: border-box;
}

input:focus, select:focus {
    border-color: #3498db;
    outline: none;
}

button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 14px 20px;
    font-size: 16px;
    border-radius: 6px;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.3s;
    font-weight: 600;
}

button:hover {
    background-color: #2980b9;
}

/* Ergebnis-Box */
.result-box {
    margin-top: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #3498db;
}

.result-box h3 {
    margin-top: 0;
    color: #2c3e50;
}

.total {
    font-size: 1.2em;
    font-weight: bold;
    color: #27ae60;
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid #eee;
}

.error {
    color: #e74c3c;
    padding: 10px;
    background: #fde8e8;
    border-radius: 4px;
}

/* CSV-Download Button */
.download-btn {
    background-color: #27ae60;
    margin-top: 15px;
}

.download-btn:hover {
    background-color: #219955;
}

/* Responsive Design */
@media (max-width: 480px) {
    .container {
        padding: 15px;
    }
    
    input, select, button {
        padding: 10px;
    }
}