/* ===============================================
   Base Variables & Reset
   =============================================== */
:root {
  /* Ретро-гиперреалистичная пастельная цветовая схема */
  --color-primary: #ff7e5f;
  --color-primary-dark: #e06c52;
  --color-secondary: #feb47b;
  --color-secondary-dark: #e6a36f;
  --color-accent: #84fab0;
  --color-accent-dark: #70d69a;
  
  /* Нейтральные цвета */
  --color-white: #ffffff;
  --color-light: #f7f9fc;
  --color-light-gray: #e8ecf3;
  --color-gray: #a9b5cc;
  --color-dark-gray: #5d6678;
  --color-dark: #303545;
  --color-black: #1a1c25;
  
  /* Фоновые цвета */
  --bg-light: #f7f9fc;
  --bg-dark: #303545;
  --bg-gradient: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  --bg-gradient-overlay: linear-gradient(rgba(48, 53, 69, 0.8), rgba(26, 28, 37, 0.8));
  
  /* Тени */
  --shadow-sm: 0 2px 8px rgba(26, 28, 37, 0.1);
  --shadow-md: 0 4px 12px rgba(26, 28, 37, 0.15);
  --shadow-lg: 0 8px 28px rgba(26, 28, 37, 0.2);
  
  /* Скругления */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-round: 50%;
  
  /* Размеры и отступы */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;
  --spacing-xxl: 8rem;
  
  /* Контейнер */
  --container-width: 1200px;
  --container-padding: var(--spacing-lg);
  
  /* Типографика */
  --font-heading: 'Oswald', sans-serif;
  --font-body: 'Nunito', sans-serif;
  --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;
  
  /* Анимации */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-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);
}

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

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

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

ul {
  list-style: none;
}

/* ===============================================
   Утилиты
   =============================================== */
.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-xl);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--color-primary);
  margin: var(--spacing-sm) auto 0;
}

.section-description {
  text-align: center;
  max-width: 800px;
  margin: -var(--spacing-lg) auto var(--spacing-xl);
  color: var(--color-dark-gray);
}

/* ===============================================
   Кнопки
   =============================================== */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-medium);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: var(--font-size-sm);
  border: 2px solid transparent;
  box-shadow: var(--shadow-sm);
}

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

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

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

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

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

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

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

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--font-size-xs);
}

/* ===============================================
   Формы
   =============================================== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--color-dark-gray);
}

input, textarea, select {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--color-light-gray);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--font-size-md);
  background-color: var(--color-white);
  transition: border-color var(--transition-fast);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(255, 126, 95, 0.1);
}

button, input[type="submit"] {
  cursor: pointer;
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  font-weight: 600;
  transition: all var(--transition-medium);
}

button:hover, input[type="submit"]:hover {
  background-color: var(--color-primary-dark);
}

/* ===============================================
   Карточки
   =============================================== */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card-image {
  width: 100%;
  position: relative;
  overflow: hidden;
  text-align: center;
}

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

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

.card-content {
  padding: var(--spacing-lg);
  width: 100%;
}

.card-content h3 {
  margin-top: 0;
}

/* ===============================================
   Сетка
   =============================================== */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* ===============================================
   Header
   =============================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
  transition: all var(--transition-medium);
}

.header.scrolled {
  padding: 0.5rem 0;
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
}

.logo a {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo h1 {
  font-size: var(--font-size-xl);
  margin: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.main-nav ul {
  display: flex;
  gap: var(--spacing-lg);
}

.main-nav a {
  color: var(--color-dark);
  font-weight: 600;
  position: relative;
  padding: var(--spacing-sm) 0;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-medium);
}

.main-nav a:hover {
  color: var(--color-primary);
}

.main-nav a:hover::after {
  width: 100%;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  cursor: pointer;
}

.mobile-menu-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--color-primary);
  transition: all var(--transition-medium);
}

/* ===============================================
   Hero Section
   =============================================== */
.hero {
  padding: 180px 0 100px;
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--color-white);
  text-align: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-gradient-overlay);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-lg);
  color: var(--color-white);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-xl);
  color: var(--color-white);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

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

/* ===============================================
   About Section
   =============================================== */
.about-section {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-white);
}

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

.about-image {
  flex: 1;
}

.about-text {
  flex: 1;
}

.image-container {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.image-container img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}

.image-container:hover img {
  transform: scale(1.03);
}

/* ===============================================
   Mission Section
   =============================================== */
.mission-section {
  padding: var(--spacing-xxl) 0;
  background-color: var(--bg-light);
}

.mission-content {
  display: flex;
  gap: var(--spacing-xl);
  align-items: center;
}

.mission-text {
  flex: 1;
}

.mission-image {
  flex: 1;
}

/* ===============================================
   Statistics Section
   =============================================== */
.statistics-section {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-white);
  position: relative;
}

.statistics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.stat-card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-xl);
  text-align: center;
  transition: transform var(--transition-medium);
}

.stat-card:hover {
  transform: translateY(-10px);
}

.stat-icon {
  margin-bottom: var(--spacing-md);
}

.stat-icon img {
  width: 80px;
  height: 80px;
  margin: 0 auto;
  border-radius: var(--radius-round);
  object-fit: cover;
}

.stat-number {
  font-size: var(--font-size-xxxl);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.stat-description {
  color: var(--color-dark-gray);
  font-size: var(--font-size-md);
}

/* ===============================================
   Methodology Section
   =============================================== */
.methodology-section {
  padding: var(--spacing-xxl) 0;
  background-color: var(--bg-light);
}

.methodology-content {
  display: flex;
  gap: var(--spacing-xl);
  align-items: center;
}

.methodology-image {
  flex: 1;
}

.methodology-text {
  flex: 1;
}

/* ===============================================
   Process Section
   =============================================== */
.process-section {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-white);
}

.process-steps {
  max-width: 800px;
  margin: 0 auto;
}

.process-step {
  display: flex;
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.process-step:last-child {
  margin-bottom: 0;
}

.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 60px;
  left: 25px;
  width: 2px;
  height: calc(100% + var(--spacing-xl));
  background-color: var(--color-light-gray);
}

.step-number {
  width: 50px;
  height: 50px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-round);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-xl);
  margin-right: var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.step-content {
  flex: 1;
}

.step-content h3 {
  margin-top: 0;
  color: var(--color-primary);
}

/* ===============================================
   Resources Section
   =============================================== */
.resources-section {
  padding: var(--spacing-xxl) 0;
  background-color: var(--bg-light);
}

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

.resource-card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-lg);
  transition: transform var(--transition-medium);
}

.resource-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.resource-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

.resource-card p {
  color: var(--color-dark-gray);
  margin-bottom: 0;
}

/* ===============================================
   Case Studies Section
   =============================================== */
.case-studies-section {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-white);
}

.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

/* ===============================================
   Team Section
   =============================================== */
.team-section {
  padding: var(--spacing-xxl) 0;
  background-color: var(--bg-light);
}

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

.team-position {
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

/* ===============================================
   Events Section
   =============================================== */
.events-section {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-white);
}

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

.event-card {
  display: flex;
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition-medium);
}

.event-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.event-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 100px;
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-lg);
  text-align: center;
}

.event-date .day {
  font-size: var(--font-size-xxl);
  font-weight: 700;
  line-height: 1;
}

.event-date .month {
  font-size: var(--font-size-md);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.event-details {
  padding: var(--spacing-lg);
  flex: 1;
}

.event-details h3 {
  margin-top: 0;
  font-size: var(--font-size-lg);
}

.event-location {
  color: var(--color-dark-gray);
  margin-bottom: var(--spacing-md);
  font-style: italic;
}

/* ===============================================
   Contact Section
   =============================================== */
.contact-section {
  padding: var(--spacing-xxl) 0;
  background-color: var(--bg-light);
}

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

.contact-info {
  flex: 1;
}

.contact-form-container {
  flex: 1;
}

.contact-card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.contact-card h3 {
  margin-top: 0;
  color: var(--color-primary);
}

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

.contact-detail i {
  margin-right: var(--spacing-md);
  color: var(--color-primary);
}

.contact-detail p {
  margin: 0;
}

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

.contact-hours h4 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.contact-hours p {
  margin-bottom: var(--spacing-sm);
}

.contact-map {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.contact-map img {
  width: 100%;
  height: auto;
  display: block;
}

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

.footer-content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.footer-column h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.footer-column h3::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 40px;
  height: 2px;
  background-color: var(--color-primary);
}

.footer-column ul {
  list-style: none;
  padding: 0;
}

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

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

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

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

.social-links a {
  color: var(--color-light);
  transition: color var(--transition-fast);
  text-decoration: none;
}

.social-links a:hover {
  color: var(--color-primary);
}

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

/* ===============================================
   Cookie Popup
   =============================================== */
.cookie-popup {
  position: fixed;
  bottom: 20px;
  right: 20px;
  max-width: 350px;
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 999;
  display: none;
}

.cookie-content {
  padding: var(--spacing-lg);
}

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

/* ===============================================
   Additional Pages
   =============================================== */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-xxl) 0;
}

.success-content {
  max-width: 600px;
}

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

.privacy-content, .terms-content {
  padding-top: 100px;
  max-width: 800px;
  margin: 0 auto;
}

/* ===============================================
   Media Queries
   =============================================== */
@media (max-width: 1024px) {
  :root {
    --container-padding: var(--spacing-md);
  }
  
  .statistics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: var(--font-size-xxl);
  }
  
  h2 {
    font-size: var(--font-size-xl);
  }
  
  .about-content, .mission-content, .methodology-content, .contact-content {
    flex-direction: column;
  }
  
  .hero {
    padding: 150px 0 80px;
  }
  
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .hero-content p {
    font-size: var(--font-size-lg);
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md) 0;
  }
  
  .main-nav.active {
    display: block;
  }
  
  .main-nav ul {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
  }
  
  .event-card {
    flex-direction: column;
  }
  
  .event-date {
    width: 100%;
    min-width: auto;
    padding: var(--spacing-md);
    flex-direction: row;
    justify-content: center;
    gap: var(--spacing-sm);
  }
}

@media (max-width: 576px) {
  .statistics-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .process-step {
    flex-direction: column;
  }
  
  .step-number {
    margin-bottom: var(--spacing-md);
    margin-right: 0;
  }
  
  .process-step:not(:last-child)::after {
    display: none;
  }
}