/* ==========================================
   КАЛЬКУЛЯТОР СТОИМОСТИ САЙТА
   ========================================== */

.calculator-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.calculator-section h2 {
    text-align: center;
    font-size: clamp(24px, 3vw, 36px);
    font-weight: 800;
    color: #2d3436;
    margin-bottom: 12px;
}

.calculator {
    max-width: 650px;
    margin: 40px auto 0;
    background: #fff;
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

/* Группа полей */
.calc-group {
    margin-bottom: 28px;
}

.calc-group label {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: #2d3436;
    margin-bottom: 10px;
}

.calc-group select,
.calc-group input[type="range"] {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    font-size: 1rem;
    color: #2d3436;
    background: #f8f9fa;
    cursor: pointer;
    transition: all 0.3s;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.calc-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23636e72' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 18px center;
    padding-right: 40px;
}

.calc-group select:hover,
.calc-group select:focus {
    border-color: #6C5CE7;
    box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.1);
}

/* Ползунок */
.calc-group input[type="range"] {
    padding: 0;
    height: 8px;
    background: linear-gradient(to right, #6C5CE7, #a29bfe);
    border-radius: 4px;
    outline: none;
}

.calc-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 28px;
    height: 28px;
    background: #fff;
    border: 3px solid #6C5CE7;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(108, 92, 231, 0.3);
    transition: transform 0.2s;
}

.calc-group input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.calc-group input[type="range"]::-moz-range-thumb {
    width: 28px;
    height: 28px;
    background: #fff;
    border: 3px solid #6C5CE7;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(108, 92, 231, 0.3);
}

/* Значение ползунка */
.calc-group label span {
    display: inline-block;
    background: #6C5CE7;
    color: #fff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-left: 8px;
    min-width: 40px;
    text-align: center;
}

/* Чекбоксы */
.calc-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 28px;
}

.calc-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.9rem;
    font-weight: 500;
    user-select: none;
}

.calc-checkbox:hover {
    border-color: #6C5CE7;
    background: rgba(108, 92, 231, 0.05);
}

.calc-checkbox.active {
    border-color: #6C5CE7;
    background: rgba(108, 92, 231, 0.1);
    color: #6C5CE7;
}

.calc-checkbox input {
    display: none;
}

/* Результат */
.calc-result {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 16px;
    padding: 24px;
    margin: 28px 0;
    text-align: center;
}

.calc-result p {
    margin: 0 0 8px;
    font-size: 1rem;
    color: #636e72;
}

.calc-result strong {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: #6C5CE7;
    margin-top: 4px;
}

.calc-result .calc-time {
    font-size: 0.9rem;
    color: #636e72;
    margin-top: 8px;
}

.calc-result .calc-time strong {
    display: inline;
    font-size: 0.9rem;
    color: #00b894;
}

/* Скидка */
.calc-discount {
    display: inline-block;
    background: #00b894;
    color: #fff;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 8px;
}

/* Кнопка */
.calculator .btn-primary {
    display: block;
    width: 100%;
    text-align: center;
    padding: 16px;
    font-size: 1.1rem;
    font-weight: 700;
    background: linear-gradient(135deg, #6C5CE7, #a29bfe);
    color: #fff;
    border: none;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    box-shadow: 0 8px 25px rgba(108, 92, 231, 0.3);
}

.calculator .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(108, 92, 231, 0.4);
}

/* Детализация */
.calc-details {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
}

.calc-details h4 {
    font-size: 0.9rem;
    color: #636e72;
    margin-bottom: 12px;
}

.calc-detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    font-size: 0.85rem;
    color: #636e72;
}

.calc-detail-row span:last-child {
    font-weight: 600;
    color: #2d3436;
}

/* ==========================================
   АДАПТИВНОСТЬ
   ========================================== */

/* Планшет */
@media screen and (max-width: 1024px) {
    .calculator {
        max-width: 550px;
        padding: 30px;
    }
}

/* Телефон горизонтальный */
@media screen and (max-width: 768px) {
    .calculator-section {
        padding: 50px 0;
    }
    
    .calculator {
        max-width: 100%;
        padding: 24px;
        border-radius: 16px;
        margin: 24px 16px 0;
    }
    
    .calc-result strong {
        font-size: 1.6rem;
    }
}

/* Телефон вертикальный */
@media screen and (max-width: 460px) {
    .calculator-section {
        padding: 30px 0;
    }
    
    .calculator-section h2 {
        font-size: 20px;
        padding: 0 16px;
    }
    
    .calculator {
        padding: 16px;
        margin: 16px 8px 0;
        border-radius: 12px;
    }
    
    .calc-group {
        margin-bottom: 20px;
    }
    
    .calc-group label {
        font-size: 0.9rem;
    }
    
    .calc-group select,
    .calc-group input[type="range"] {
        padding: 12px 14px;
        font-size: 0.9rem;
    }
    
    .calc-checkboxes {
        gap: 8px;
    }
    
    .calc-checkbox {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
    
    .calc-result {
        padding: 16px;
    }
    
    .calc-result strong {
        font-size: 1.3rem;
    }
    
    .calculator .btn-primary {
        padding: 14px;
        font-size: 1rem;
    }
}

/* Очень маленькие */
@media screen and (max-width: 360px) {
    .calculator {
        padding: 12px;
        margin: 12px 4px 0;
    }
    
    .calc-checkboxes {
        flex-direction: column;
    }
}