/* Base CSS Variables - Яркая цветовая схема с нейроморфизмом */
:root {
    /* Основные цвета */
    --primary-color: #0066ff;
    --primary-dark: #0055cc;
    --primary-light: #4d94ff;
    --secondary-color: #ff6600;
    --secondary-dark: #cc5200;
    --secondary-light: #ff8533;
    
    /* Акцентные цвета */
    --accent-1: #ff1a75;
    --accent-2: #33cc33;
    --accent-3: #9933cc;
    
    /* Нейтральные цвета */
    --dark: #1a1a1a;
    --dark-medium: #333333;
    --medium: #666666;
    --light-medium: #999999;
    --light: #e6e6e6;
    --white: #ffffff;
    
    /* Фоновые цвета */
    --bg-primary: #f9f9f9;
    --bg-secondary: #f0f0f0;
    --bg-tertiary: #e8e8e8;
    
    /* Тени для нейроморфизма */
    --shadow-light: 5px 5px 15px rgba(200, 200, 200, 0.8);
    --shadow-dark: -5px -5px 15px rgba(255, 255, 255, 0.8);
    --inner-shadow: inset 2px 2px 5px rgba(0, 0, 0, 0.15);
    
    /* Градиенты */
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
    --gradient-accent: linear-gradient(135deg, var(--accent-1), var(--accent-3));
    --gradient-overlay: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.3));
    
    /* Размеры */
    --container-width: 1200px;
    --container-padding: 2rem;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Радиусы */
    --radius-sm: 5px;
    --radius-md: 10px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --radius-round: 50%;
    
    /* Шрифты */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Merriweather', serif;
    
    /* Размеры шрифтов */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-xxl: 2rem;
    --font-size-xxxl: 3rem;
    
    /* Переходы */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--dark-medium);
    background-color: var(--bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--dark);
}

h1 {
    font-size: var(--font-size-xxxl);
}

h2 {
    font-size: var(--font-size-xxl);
}

h3 {
    font-size: var(--font-size-xl);
}

p {
    margin-bottom: var(--spacing-md);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-normal);
}

a:hover {
    color: var(--primary-dark);
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
}

/* Кнопки */
.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: var(--font-size-md);
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    border: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-light);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    transition: transform var(--transition-normal);
    transform: scaleX(0);
    transform-origin: right;
}

.btn:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

.btn:active {
    transform: translateY(2px);
    box-shadow: var(--inner-shadow);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
}

.btn-primary::before {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: var(--white);
}

.btn-secondary::before {
    background: var(--secondary-dark);
}

.btn-sm {
    padding: 0.5rem 1.2rem;
    font-size: var(--font-size-sm);
}

button, input[type='submit'] {
    cursor: pointer;
    font-family: var(--font-heading);
    transition: all var(--transition-normal);
}

/* Нейроморфные карточки */
.card {
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-light), var(--shadow-dark);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    transition: transform var(--transition-normal);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
}

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

.card-content {
    width: 100%;
    text-align: center;
}

.card-image {
    width: 100%;
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    border-radius: var(--radius-md);
    text-align: center;
}

.card-image img {
    width: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
    margin: 0 auto;
}

.card:hover .card-image img {
    transform: scale(1.05);
}

.image-container {
    overflow: hidden;
    border-radius: var(--radius-md);
    width: 100%;
    text-align: center;
}

.image-container img {
    width: 100%;
    object-fit: cover;
    margin: 0 auto;
}

/* Header и навигация */
.header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    transition: all var(--transition-normal);
}

.header.scrolled {
    padding: 0.5rem 0;
}

.header-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    z-index: 1001;
}

.logo img {
    height: auto;
    transition: all var(--transition-normal);
}

.nav-desktop {
    display: flex;
}

.nav-desktop ul {
    display: flex;
    align-items: center;
}

.nav-desktop ul li {
    margin: 0 var(--spacing-sm);
}

.nav-desktop ul li a {
    color: var(--dark);
    font-family: var(--font-heading);
    font-weight: 500;
    transition: color var(--transition-normal);
    position: relative;
}

.nav-desktop ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-normal);
}

.nav-desktop ul li a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.burger-menu {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 1001;
}

.burger-menu span {
    display: block;
    width: 30px;
    height: 3px;
    background-color: var(--dark);
    margin: 3px 0;
    transition: all var(--transition-normal);
}

.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--white);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transform: translateY(-100%);
    transition: transform var(--transition-normal);
}

.mobile-menu.active {
    transform: translateY(0);
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.mobile-menu ul li {
    margin: var(--spacing-sm) 0;
}

.mobile-menu ul li a {
    font-size: var(--font-size-lg);
    color: var(--dark);
    font-family: var(--font-heading);
    font-weight: 500;
}

/* Hero Section */
.hero {
    position: relative;
    padding: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    margin-top: 0;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-overlay);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

.hero h1 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    color: var(--white);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

/* About Us Section */
.about {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-primary);
}

.about-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-lg);
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-image {
    flex: 1;
    min-width: 300px;
}

/* Vision Section */
.vision {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-secondary);
}

.vision-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-lg);
}

.vision-text {
    flex: 1;
    min-width: 300px;
}

.vision-image {
    flex: 1;
    min-width: 300px;
}

/* Process Section */
.process {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-primary);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

/* Methodology Section */
.methodology {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-secondary);
}

.methodology-content {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.methodology-text {
    flex: 1;
    min-width: 300px;
}

.methodology-steps {
    flex: 1;
    min-width: 300px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

/* Statistics Section */
.statistics {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-primary);
}

.statistics-intro {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    text-align: center;
}

.statistics-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.statistics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-md);
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat-icon {
    margin-bottom: var(--spacing-sm);
    width: 60px;
    height: 60px;
}

.stat-value {
    font-family: var(--font-heading);
    font-size: var(--font-size-xxxl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-trend {
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--accent-2);
}

.statistics-chart {
    width: 100%;
    margin-top: var(--spacing-lg);
    text-align: center;
}

.chart-caption {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--medium);
    font-style: italic;
}

/* Portfolio Section */
.portfolio {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-secondary);
}

.portfolio-intro {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    text-align: center;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

/* Resources Section */
.resources {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-primary);
}

.resources-intro {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    text-align: center;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.resource-link {
    display: inline-block;
    margin-top: var(--spacing-sm);
    color: var(--primary-color);
    font-weight: 600;
    position: relative;
    padding-right: 1.5rem;
}

.resource-link::after {
    content: '→';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    transition: transform var(--transition-normal);
}

.resource-link:hover::after {
    transform: translate(5px, -50%);
}

/* Events Section */
.events {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-secondary);
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.event-info {
    display: flex;
    justify-content: space-between;
    margin: var(--spacing-sm) 0 var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--medium);
}

.event-date, .event-location {
    display: flex;
    align-items: center;
}

.event-date::before {
    content: "📅";
    margin-right: 5px;
}

.event-location::before {
    content: "📍";
    margin-right: 5px;
}

/* FAQ Section */
.faq {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-primary);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--spacing-md);
    background-color: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-light);
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    cursor: pointer;
    background-color: var(--bg-secondary);
    transition: background-color var(--transition-normal);
}

.faq-question h3 {
    margin: 0;
    font-size: var(--font-size-md);
    font-weight: 500;
}

.faq-toggle {
    font-size: var(--font-size-xl);
    transition: transform var(--transition-normal);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
    padding: 0 var(--spacing-md);
}

.faq-item.active .faq-question {
    background-color: var(--bg-tertiary);
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: var(--spacing-md);
    padding-top: 0;
}

/* Contact Section */
.contact {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-secondary);
}

.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.contact-info {
    flex: 1;
    min-width: 300px;
}

.contact-form-container {
    flex: 1;
    min-width: 300px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-light);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.8rem;
    border: 1px solid var(--light-medium);
    border-radius: var(--radius-sm);
    background-color: var(--white);
    font-family: var(--font-body);
    transition: all var(--transition-normal);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 102, 255, 0.2);
}

.contact-details {
    margin-top: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.contact-item img {
    margin-right: var(--spacing-sm);
    width: 30px;
    height: 30px;
}

.contact-item p {
    margin: 0;
}

/* Footer */
.footer {
    padding: var(--spacing-xl) 0 var(--spacing-md);
    background-color: var(--dark);
    color: var(--white);
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    flex: 1;
    min-width: 250px;
}

.footer-logo p {
    margin-top: var(--spacing-sm);
    color: var(--light);
}

.footer-links,
.footer-resources,
.footer-social {
    flex: 1;
    min-width: 160px;
}

.footer h3 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-md);
}

.footer ul li {
    margin-bottom: var(--spacing-xs);
}

.footer a {
    color: var(--light);
    transition: color var(--transition-normal);
}

.footer a:hover {
    color: var(--primary-light);
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.social-links a {
    color: var(--light);
    font-size: var(--font-size-md);
    transition: color var(--transition-normal), transform var(--transition-normal);
}

.social-links a:hover {
    color: var(--primary-light);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    margin: 0;
    color: var(--light-medium);
    font-size: var(--font-size-sm);
}

/* Дополнительные стили */
/* Success Page */
.success-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-color: var(--bg-primary);
    padding: var(--spacing-md);
}

.success-content {
    max-width: 600px;
    padding: var(--spacing-lg);
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-light), var(--shadow-dark);
}

.success-icon {
    font-size: 5rem;
    color: var(--accent-2);
    margin-bottom: var(--spacing-md);
}

/* Privacy & Terms Pages */
.privacy-content,
.terms-content {
    padding-top: 100px;
    max-width: 800px;
    margin: 0 auto;
    padding-bottom: var(--spacing-xl);
}

/* Анимации для статистики */
@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Параллакс эффекты */
.parallax {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

/* Медиа запросы */
@media (max-width: 991px) {
    :root {
        --font-size-xxxl: 2.5rem;
        --font-size-xxl: 1.8rem;
    }
    
    .nav-desktop {
        display: none;
    }
    
    .burger-menu {
        display: flex;
    }
    
    .hero-content {
        max-width: 90%;
    }
    
    .methodology-steps {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-xxxl: 2rem;
        --font-size-xxl: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }
    
    .hero {
        height: 80vh;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .about-content,
    .vision-content {
        flex-direction: column;
    }
    
    .card-image {
        height: 200px;
    }
    
    .statistics-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 576px) {
    :root {
        --font-size-xxxl: 1.8rem;
        --font-size-xxl: 1.3rem;
        --font-size-xl: 1.1rem;
        --container-padding: 1rem;
    }
    
    .portfolio-grid,
    .events-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        flex-direction: column;
    }
}

/* Дополнительные анимации */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.logo img{
    width: 30px;
    height: 30px;
}