* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --border-radius: 8px;
    --card-background: #f8f9fa;
    --sk-body-text-color: #1d1d1f;
    --primary-color: #7C3AED;
    --accent: #7C3AED;
    --text-button: #fff;
    --text-button-rgb: 255, 255, 255;
    --dark-secondary: rgba(60, 60, 60, 0.6);
    --text-primary: #fff;
    --text-secondary: #6B7280;
    --sk-fill: #fff;
    --dark-light: rgba(60, 60, 60, 0.4);
    --promoaction: #ff2a38;
    --promoaction-blue: #0071e3;
    --promoaction-hot: #ff6f00;
    --promoaction-green: #34c759;
    --promoaction-purple: #244aa2;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fff;
    margin: 0;
    margin-top: 0px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.calculator-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.calculator-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: float 20s linear infinite;
}

@keyframes float {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.calculator-container {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
}

.calculator-header {
    text-align: center;
    margin-bottom: 50px;
}

.calculator-title {
    font-size: 42px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.calculator-subtitle {
    font-size: 18px;
    color: rgba(255,255,255,0.9);
    margin-bottom: 0;
}

.calculator-form {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 50px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.2);
}

.form-section {
    margin-bottom: 40px;
}

.form-section-title {
    font-size: 20px;
    font-weight: 600;
    color: #4A5568;
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 2px solid #E2E8F0;
    position: relative;
}

.form-section-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, #667eea, #764ba2);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}


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

.checkbox-item {
    position: relative;
}

.checkbox-item input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
    margin: 0;
    z-index: 2;
}

.checkbox-label {
    display: flex;
    align-items: center;
    padding: 18px 20px;
    background: #F7FAFC;
    border: 2px solid #E2E8F0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
}

.checkbox-label:hover {
    background: #EDF2F7;
    border-color: #CBD5E0;
    transform: translateY(-2px);
}

.checkbox-item input[type="checkbox"]:checked + .checkbox-label {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-color: #667eea;
    color: #fff;
}

.checkbox-icon {
    width: 24px;
    height: 24px;
    margin-right: 15px;
    flex-shrink: 0;
}

.checkbox-text {
    font-weight: 500;
    font-size: 15px;
}

.form-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 40px;
}

/* Button Container */
.mobile-button-container {
    display: flex;
    justify-content: center;
    margin: 20px 0;
}

.privacy-notice {
    text-align: center;
    margin-top: 30px;
    font-size: 14px;
    color: #718096;
    line-height: 1.5;
}

.privacy-notice a {
    color: #667eea;
    text-decoration: none;
}

.privacy-notice a:hover {
    text-decoration: underline;
}

.calculation-result {
    background: linear-gradient(135deg, #48BB78, #38A169);
    color: white;
    padding: 25px;
    border-radius: 12px;
    margin-top: 30px;
    text-align: center;
    display: none;
}

.result-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}

.result-price {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 10px;
}

.result-details {
    font-size: 14px;
    opacity: 0.9;
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    .calculator-section {
        padding: 60px 0;
    }
    .calculator-title {
        font-size: 32px;
        margin-top: 0px;
    }
    .calculator-form {
        padding: 30px 20px;
    }
    .form-grid {
        grid-template-columns: 1fr;
    }
    .checkbox-grid {
        grid-template-columns: 1fr;
    }
    .form-actions {
        flex-direction: column;
        align-items: center;
    }
}