.standart-sapma {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary-color: #4a90e2;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --border-color: #dee2e6;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --success-color: #2ecc71;
    --warning-color: #f1c40f;
    --danger-color: #e74c3c;
    --info-color: #3498db;
}

.hesaplama-baslik {
    text-align: center;
    color: var(--secondary-color);
    margin-bottom: 20px;
    font-size: 24px;
}

.hesaplama-baslik i {
    color: var(--primary-color);
    margin-right: 10px;
}

.bilgi-kutusu {
    background-color: var(--light-bg);
    border-left: 4px solid var(--info-color);
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 0 5px 5px 0;
}

.hesaplama-form {
    background-color: var(--light-bg);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px var(--shadow-color);
}

.form-bolum {
    margin-bottom: 20px;
}

.form-bolum h3 {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: 18px;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: var(--secondary-color);
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.2);
}

.form-text {
    display: block;
    margin-top: 5px;
    color: #666;
    font-size: 14px;
}

.hesapla-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
    width: 100%;
}

.hesapla-btn:hover {
    background-color: #357abd;
}

.sonuclar {
    background-color: var(--light-bg);
    padding: 20px;
    border-radius: 8px;
    margin-top: 20px;
    box-shadow: 0 2px 4px var(--shadow-color);
}

.sonuclar.hidden {
    display: none;
}

.sonuc-ozet {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.sonuc-item {
    background-color: white;
    padding: 15px;
    border-radius: 6px;
    box-shadow: 0 1px 3px var(--shadow-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sonuc-item i {
    color: var(--primary-color);
    font-size: 20px;
}

.sonuc-detay {
    display: flex;
    flex-direction: column;
}

.sonuc-detay .etiket {
    color: var(--secondary-color);
    font-size: 14px;
    margin-bottom: 5px;
}

.sonuc-detay .deger {
    color: var(--text-color);
    font-size: 18px;
    font-weight: 500;
}

.hesaplama-detay {
    background-color: white;
    padding: 15px;
    border-radius: 6px;
    box-shadow: 0 1px 3px var(--shadow-color);
}

.hesaplama-detay h3 {
    color: var(--secondary-color);
    margin-bottom: 10px;
    font-size: 18px;
}

.hesaplama-detay p {
    color: var(--text-color);
    font-size: 14px;
    margin: 5px 0;
}

.bilgi-bolumu {
    margin-top: 30px;
}

.bilgi-bolumu h3 {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: 20px;
}

.bilgi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.bilgi-item {
    background-color: white;
    padding: 15px;
    border-radius: 6px;
    box-shadow: 0 1px 3px var(--shadow-color);
}

.bilgi-item h5 {
    color: var(--secondary-color);
    margin-bottom: 10px;
    font-size: 16px;
}

.bilgi-item p {
    color: var(--text-color);
    font-size: 14px;
    margin: 5px 0;
}

.uyari-kutulari {
    margin-top: 20px;
}

.uyari-item {
    background-color: #fff3cd;
    border-left: 4px solid var(--warning-color);
    padding: 15px;
    border-radius: 0 5px 5px 0;
}

.uyari-item h5 {
    color: #856404;
    margin-bottom: 10px;
    font-size: 16px;
}

.uyari-item p {
    color: #856404;
    font-size: 14px;
    margin: 5px 0;
}

@media (max-width: 768px) {
    .standart-sapma {
        padding: 15px;
    }

    .hesaplama-baslik {
        font-size: 20px;
    }

    .sonuc-ozet {
        grid-template-columns: 1fr;
    }

    .form-group input {
        font-size: 14px;
    }

    .hesapla-btn {
        font-size: 14px;
        padding: 8px 16px;
    }
}