/* Базовые стили и сброс */
:root {
    --primary-green: #27AE60;
    --light-green: #58D68D;
    --accent-purple: #8E44AD;
    --dark-gray: #2C3E50;
    --light-gray: #ECF0F1;
    --white: #FFFFFF;
    --yellow: #F1C40F;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Плавная прокрутка для браузеров, которые поддерживают CSS scroll-behavior */
html {
    scroll-behavior: smooth;
}

/* Стили для главного экрана */
.hero {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--light-green) 100%);
    color: var(--white);
    padding: 100px 0;
    text-align: center;
    position: relative;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.subtitle {
    font-size: 1.4rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    background: var(--accent-purple);
    color: var(--white);
    border: none;
    padding: 18px 35px;
    font-size: 1.2rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    position: relative;
    overflow: hidden;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(142, 68, 173, 0.3);
    background: #7D3C98;
}

.hero-benefits {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.hero-benefits span {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Стили для секции преимуществ */
.benefits {
    padding: 100px 0;
    background: var(--light-gray);
}

.benefits h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--dark-gray);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.benefit-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
}

.benefit-card i {
    font-size: 3rem;
    color: var(--primary-green);
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.benefit-card:hover i {
    transform: scale(1.2) rotate(5deg);
    color: var(--accent-purple);
}

.benefit-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-gray);
}

/* Стили для временной шкалы */
.timeline {
    padding: 100px 0;
    background: var(--white);
}

.timeline h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--dark-gray);
}

.timeline-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.step {
    text-align: center;
    padding: 30px;
}

.step-number {
    background: var(--primary-green);
    color: var(--white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 20px;
}

.step h4 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark-gray);
}

/* Science Section */
.science {
    padding: 100px 0;
    background: var(--light-gray);
}

.science h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--dark-gray);
}

.comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.comparison-item {
    padding: 30px;
    border-radius: 10px;
    text-align: center;
}

.comparison-item.bad {
    background: #FFEAA7;
    border: 2px solid #FDCB6E;
}

.comparison-item.good {
    background: #D1F2EB;
    border: 2px solid var(--primary-green);
}

.comparison-item h4 {
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.comparison-item ul {
    list-style: none;
    text-align: left;
}

.comparison-item li {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.comparison-item.bad li i {
    color: #E74C3C;
    margin-right: 10px;
}

.comparison-item.good li i {
    color: var(--primary-green);
    margin-right: 10px;
}

/* Стили для калькулятора */
.calculator-section {
    padding: 80px 0;
    background: var(--white);
}

.calculator-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 40px;
    color: var(--dark-gray);
}

.calculator {
    max-width: 700px;
    margin: 0 auto;
    background: var(--light-gray);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.calc-inputs {
    margin-bottom: 30px;
}

.calc-input {
    margin-bottom: 30px;
}

.calc-input label {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--dark-gray);
    font-weight: 600;
}

.slider-container {
    margin-bottom: 10px;
}

#monthly-spend {
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: #ddd;
    outline: none;
    -webkit-appearance: none;
}

#monthly-spend::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--accent-purple);
    cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

#monthly-spend::-moz-range-thumb {
    width: 24px;
    height: 24px;
    background: var(--accent-purple);
    border: 2px solid white;
    border-radius: 50%;
    cursor: pointer;
}

.slider-values {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--dark-gray);
}

#current-spend {
    font-weight: bold;
    color: var(--accent-purple);
    font-size: 1rem;
}

.family-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.family-btn {
    padding: 10px 20px;
    border: 2px solid #ddd;
    background: var(--white);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
    font-weight: 500;
    flex: 1;
    min-width: 70px;
}

.family-btn:hover {
    border-color: var(--primary-green);
}

.family-btn.active {
    background: var(--primary-green);
    color: var(--white);
    border-color: var(--primary-green);
}

.calc-results {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.result-card {
    background: var(--white);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 15px;
    position: relative;
    z-index: 1;
}

.result-card.highlight {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--light-green) 100%);
    color: var(--white);
    border: 2px solid var(--primary-green);
    transform: scale(1.05);
}

.result-icon {
    font-size: 1.5rem;
    color: var(--primary-green);
}

.result-card.highlight .result-icon {
    color: var(--white);
}

.result-text {
    text-align: left;
    flex: 1;
}

.result-label {
    font-size: 0.8rem;
    opacity: 0.8;
    margin-bottom: 5px;
}

.result-value {
    font-size: 1.3rem;
    font-weight: bold;
}

.result-card.highlight .result-value {
    font-size: 1.5rem;
}

.calc-note {
    text-align: center;
    font-size: 0.8rem;
    color: var(--dark-gray);
    opacity: 0.8;
    padding-top: 15px;
    border-top: 1px solid #ddd;
}

.calc-note i {
    color: var(--primary-green);
    margin-right: 5px;
}

/* Stats Section */
.stats-section {
    padding: 80px 0;
    background: var(--light-gray);
    text-align: center;
}

.stats-section h2 {
    font-size: 2.5rem;
    margin-bottom: 40px;
    color: var(--dark-gray);
}

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.stat {
    padding: 20px 15px;
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-green);
    margin-bottom: 8px;
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--dark-gray);
    font-weight: 500;
}

/* Стили для секции CTA */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--dark-gray) 0%, #34495E 100%);
    color: var(--white);
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-subtitle {
    font-size: 1.3rem;
    margin-bottom: 50px;
    opacity: 0.9;
}

.offer-list {
    max-width: 500px;
    margin: 0 auto 50px;
    text-align: left;
}

.offer-item {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.offer-item i {
    font-size: 1.5rem;
    margin-right: 15px;
    color: var(--light-green);
    width: 30px;
}

.cta-form {
    max-width: 500px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
    position: relative;
}

.cta-form input {
    width: 100%;
    padding: 15px 20px;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    background: rgba(255,255,255,0.9);
}

.email-note {
    display: block;
    margin-top: 5px;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.7);
    text-align: center;
}

/* Стили для выбора мессенджера */
.messenger-label {
    display: block;
    margin-bottom: 15px;
    color: var(--white);
    font-size: 1rem;
    text-align: center;
}

.messenger-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.messenger-btn {
    flex: 1;
    padding: 15px 20px;
    border: 2px solid rgba(255,255,255,0.3);
    background: rgba(255,255,255,0.1);
    color: var(--white);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.messenger-btn:hover {
    border-color: var(--light-green);
    background: rgba(255,255,255,0.2);
}

.messenger-btn.active {
    border-color: var(--light-green);
    background: var(--light-green);
    color: var(--dark-gray);
}

.messenger-btn i {
    font-size: 1.2rem;
}

.form-note {
    margin-top: 20px;
    opacity: 0.8;
    font-size: 0.9rem;
}

/* Подсветка формы при навигации */
.cta-section:target {
    animation: highlightForm 2s ease;
}

@keyframes highlightForm {
    0% { background: rgba(142, 68, 173, 0.1); }
    100% { background: transparent; }
}

/* Footer */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    text-align: center;
    padding: 30px 0;
}

/* Адаптивность для мобильных устройств */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.1rem;
    }
    
    .hero-benefits {
        flex-direction: column;
        gap: 15px;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline-steps {
        grid-template-columns: 1fr;
    }
    
    .calculator {
        padding: 20px 15px;
        margin: 0 10px;
    }
    
    .calculator-section h2 {
        font-size: 2rem;
    }
    
    .stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .family-buttons {
        gap: 8px;
    }
    
    .family-btn {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .calc-results {
        grid-template-columns: 1fr;
    }
    
    .result-card.highlight {
        transform: none;
    }
    
    .messenger-buttons {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .stats {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    .result-card {
        padding: 15px;
    }
    
    .result-value {
        font-size: 1.1rem;
    }
    
    .result-card.highlight .result-value {
        font-size: 1.3rem;
    }
}

/* Гарантируем, что все элементы калькулятора видны */
.calculator-section * {
    box-sizing: border-box;
}