/* ========== استایل محاسبه‌گر ========== */
.stone-calculator-wrapper {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border: 2px solid #007cba;
    border-radius: 15px;
    padding: 30px;
    margin: 25px 0;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.stone-calculator-title {
    font-size: 22px;
    font-weight: 700;
    color: #1a1a2e;
    text-align: center;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid rgba(0,124,186,0.2);
}

.stone-field {
    margin-bottom: 20px;
}

.stone-field label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
    font-size: 15px;
}

.stone-select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: 10px;
    background: #fff;
    font-size: 15px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.stone-select:hover {
    border-color: #007cba;
}

.stone-select:focus {
    border-color: #007cba;
    box-shadow: 0 0 0 3px rgba(0,124,186,0.1);
    outline: none;
}

.stone-number {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: 10px;
    font-size: 15px;
    direction: ltr;
    text-align: left;
    transition: all 0.3s ease;
}

.stone-number:hover {
    border-color: #007cba;
}

.stone-number:focus {
    border-color: #007cba;
    box-shadow: 0 0 0 3px rgba(0,124,186,0.1);
    outline: none;
}

/* جزئیات قیمت */
.stone-price-details {
    background: rgba(255,255,255,0.8);
    border-radius: 10px;
    padding: 15px;
    margin: 20px 0;
}

.stone-detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px dashed #ddd;
    font-size: 14px;
    color: #555;
}

.stone-detail-row:last-child {
    border-bottom: none;
}

.stone-detail-total {
    font-weight: 700;
    color: #1a1a2e;
    font-size: 16px;
    margin-top: 5px;
    padding-top: 10px;
    border-top: 2px solid #007cba;
}

/* قیمت نهایی */
.stone-total-price {
    margin-top: 20px;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    text-align: center;
    box-shadow: 0 5px 15px rgba(102,126,234,0.4);
}

.stone-total-price span {
    font-size: 28px;
    display: inline-block;
    margin: 0 5px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

/* ریسپانسیو */
@media (max-width: 768px) {
    .stone-calculator-wrapper {
        padding: 20px;
        margin: 15px 0;
    }
    
    .stone-total-price {
        font-size: 20px;
        padding: 15px;
    }
    
    .stone-total-price span {
        font-size: 24px;
    }
}