/* Основные стили */
.fcp-calculator {
    max-width: 600px;
    margin: 40px auto;
    padding: 30px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.fcp-calculator h1 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 30px;
    font-size: 28px;
}

/* Форма */
.fcp-form-group {
    margin-bottom: 20px;
}

.fcp-form-group label {
    display: block;
    margin-bottom: 8px;
    color: #34495e;
    font-weight: 500;
}

.fcp-form-group input,
.fcp-form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s;
}

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

/* Кнопка */
.fcp-calculator button {
    width: 100%;
    padding: 15px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.fcp-calculator button:hover {
    background: #2980b9;
}

/* Результаты */
#fcp-results {
    margin-top: 30px;
}

.fcp-results {
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #3498db;
    animation: fadeIn 0.5s;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fcp-results h2 {
    margin-top: 0;
    color: #2c3e50;
}

.fcp-result-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

.fcp-result-item:last-child {
    border-bottom: none;
}

.fcp-result-item strong {
    color: #2c3e50;
    font-size: 18px;
}

/* Загрузка */
.fcp-loading {
    text-align: center;
    padding: 20px;
}

.fcp-loading:after {
    content: '';
    display: inline-block;
    width: 30px;
    height: 30px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Ошибка */
.fcp-error {
    color: #e74c3c;
    padding: 15px;
    background: #fdeaea;
    border-radius: 6px;
    margin: 10px 0;
}

/* Адаптивность */
@media (max-width: 768px) {
    .fcp-calculator {
        margin: 20px;
        padding: 20px;
    }
}