/* CSS Variables для согласованной темы */
:root {
  /* Основные цвета */
  --primary-color: #8b5cf6;
  --primary-dark: #7c3aed;
  --primary-light: #a78bfa;
  
  --secondary-color: #3b82f6;
  --secondary-dark: #2563eb;
  --secondary-light: #60a5fa;
  
  --accent-color: #f59e0b;
  --accent-dark: #d97706;
  --accent-light: #fbbf24;
  
  /* Градиенты */
  --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #3b82f6 100%);
  --gradient-secondary: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
  --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  --gradient-dark: linear-gradient(135deg, #1f2937 0%, #111827 100%);
  --gradient-hero: linear-gradient(135deg, rgba(139, 92, 246, 0.9) 0%, rgba(59, 130, 246, 0.9) 100%);
  
  /* Нейтральные цвета */
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --text-white: #ffffff;
  
  /* Фоновые цвета */
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-dark: #111827;
  --bg-card: rgba(255, 255, 255, 0.95);
  
  /* Тени */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Радиусы */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Переходы */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
  
  /* Z-index */
  --z-header: 50;
  --z-modal: 100;
  --z-tooltip: 200;
}

/* Сброс и базовые стили */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Merriweather', serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  margin: 0;
  padding: 0;
}

/* Типографика */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 1rem 0;
  /* color: var(--text-primary); */
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
  margin: 0 0 1rem 0;
  /* color: var(--text-secondary); */
}

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

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

/* Читать далее */
.read-more {
  display: inline-flex;
  align-items: center;
  color: var(--primary-color);
  font-weight: 600;
  font-family: 'Montserrat', sans-serif;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.read-more::after {
  content: '→';
  margin-left: 0.5rem;
  transition: transform var(--transition-normal);
}

.read-more:hover {
  color: var(--primary-dark);
  transform: translateX(4px);
}

.read-more:hover::after {
  transform: translateX(4px);
}

/* Глобальные стили кнопок */
.btn, button, input[type='submit'] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before, button::before, input[type='submit']::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-slow);
  z-index: -1;
}

.btn:hover::before, button:hover::before, input[type='submit']:hover::before {
  left: 100%;
}

/* Ретро кнопки */
.retro-btn {
  background: var(--gradient-primary);
  color: var(--text-white);
  box-shadow: var(--shadow-md);
  transform: perspective(1px) translateZ(0);
  position: relative;
}

.retro-btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform var(--transition-slow);
}

.retro-btn:hover::after {
  transform: translateX(100%);
}

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

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

.retro-btn.accent-btn {
  background: var(--gradient-accent);
}

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

.retro-btn:active {
  transform: translateY(0);
}

/* Карточки */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.card-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

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

.card-content {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

/* Hero секция */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: var(--text-white);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-hero);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 2rem;
}

.hero-content h1 {
  color: var(--text-white);
  margin-bottom: 1.5rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
  color: var(--text-white);
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* Параллакс эффект */
.parallax-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 120%;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center center;
  background-attachment: fixed;
  will-change: transform;
}

@media (prefers-reduced-motion: no-preference) {
  .parallax-bg {
    transform: translateZ(0);
  }
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  background: rgba(17, 24, 39, 0.9);
  backdrop-filter: blur(10px);
  transition: background var(--transition-normal);
}

.header-scrolled {
  background: rgba(17, 24, 39, 0.95);
}

/* Навигация */
nav a {
  color: var(--text-white);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: width var(--transition-normal);
}

nav a:hover {
  color: var(--accent-color);
}

nav a:hover::after {
  width: 100%;
}

/* Мобильное меню */
.mobile-menu {
  display: none;
}

@media (max-width: 768px) {
  .mobile-menu {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
  }
  
  .mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
}

/* Секции */
section {
  position: relative;
  padding: 6rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -1rem;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

/* Insights секция */
.insights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

/* Events Calendar */
.accordion-container {
  max-width: 800px;
  margin: 0 auto;
}

.accordion-item {
  margin-bottom: 1rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.accordion-item:hover {
  box-shadow: var(--shadow-lg);
}

.accordion-header {
  background: var(--bg-card);
  padding: 1.5rem;
  cursor: pointer;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  transition: background var(--transition-fast);
  position: relative;
}

.accordion-header::after {
  content: '+';
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  transition: transform var(--transition-normal);
}

.accordion-item.active .accordion-header::after {
  transform: translateY(-50%) rotate(45deg);
}

.accordion-content {
  background: var(--bg-primary);
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.accordion-item.active .accordion-content {
  max-height: 500px;
  padding: 1.5rem;
}

/* Workshops */
.workshop-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.workshop-item {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--primary-color);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.workshop-item:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-xl);
}

.workshop-item:nth-child(2n) {
  border-left-color: var(--secondary-color);
}

.workshop-item:nth-child(3n) {
  border-left-color: var(--accent-color);
}

/* Case Studies */
.case-study-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.case-study-item {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  padding: 2rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.case-study-item:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
}

.case-study-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
  justify-content: center;
}

.case-study-tag {
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  font-family: 'Montserrat', sans-serif;
}

/* Media Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-item:hover {
  box-shadow: var(--shadow-xl);
  transform: scale(1.02);
}

.gallery-item img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--transition-slow);
  margin: 0 auto;
}

.gallery-item:hover img {
  transform: scale(1.1);
}

/* Accolades */
.accolades-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.accolade-item {
  text-align: center;
  padding: 2rem;
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.accolade-item:hover {
  transform: translateY(-8px);
}

.accolade-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 2rem;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
}

.accolade-item:hover .accolade-icon {
  box-shadow: var(--shadow-xl);
  transform: scale(1.1);
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.testimonial {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.testimonial:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.testimonial::before {
  content: '"';
  position: absolute;
  top: 1rem;
  left: 1.5rem;
  font-size: 4rem;
  color: var(--primary-color);
  opacity: 0.3;
  font-family: serif;
}

.testimonial-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 1rem;
  box-shadow: var(--shadow-md);
}

.testimonial-stars {
  color: var(--accent-color);
  font-size: 1.25rem;
  margin-top: 1rem;
}

/* Contact форма */
.contact-form {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-xl);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-white);
  font-family: 'Montserrat', sans-serif;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-white);
  font-family: 'Merriweather', serif;
  transition: all var(--transition-fast);
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.3);
}

/* Footer */
footer {
  background: var(--gradient-dark);
  color: var(--text-white);
  padding: 3rem 0 1rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3, .footer-section h4 {
  color: var(--text-white);
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-color);
}

/* Социальные сети */
.social-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.social-link {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-weight: 500;
  font-family: 'Montserrat', sans-serif;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.social-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  transition: left var(--transition-normal);
  z-index: -1;
}

.social-link:hover::before {
  left: 0;
}

.social-link:hover {
  color: var(--text-white);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

/* Модальное окно */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(0, 0, 0, 0.5);
  color: var(--text-white);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.5rem;
  transition: all var(--transition-fast);
  z-index: 1;
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.8);
  transform: scale(1.1);
}

/* Success страница */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: var(--text-white);
  text-align: center;
  padding: 2rem;
}

.success-content {
  max-width: 600px;
  padding: 3rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

/* Privacy и Terms страницы */
.content-page {
  padding-top: 100px;
  min-height: 100vh;
}

.content-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}

.content-page h1 {
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.content-page h2 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.content-page p {
  margin-bottom: 1rem;
  line-height: 1.8;
}

.content-page ul, .content-page ol {
  margin-bottom: 1rem;
  padding-left: 2rem;
}

.content-page li {
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

/* Адаптивность */
@media (max-width: 1024px) {
  .insights-grid,
  .workshop-grid,
  .case-study-grid,
  .testimonials-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
  
  section {
    padding: 4rem 0;
  }
  
  .hero-content {
    padding: 1rem;
  }
  
  .parallax-bg {
    background-attachment: scroll;
  }
}

@media (max-width: 768px) {
  .gallery-grid,
  .accolades-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
  
  .workshop-grid,
  .case-study-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .social-links {
    justify-content: center;
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .card-content {
    padding: 1.5rem;
  }
  
  .workshop-item,
  .testimonial,
  .case-study-item {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  section {
    padding: 3rem 0;
  }
  
  .hero-content {
    padding: 1rem 0.5rem;
  }
  
  .card-content {
    padding: 1rem;
  }
  
  .btn, button, input[type='submit'] {
    padding: 0.625rem 1.25rem;
    font-size: 0.8rem;
  }
  
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  
  .gallery-item img {
    height: 200px;
  }
}

/* Улучшения производительности */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .parallax-bg {
    background-attachment: scroll;
    transform: none !important;
  }
}

/* Прелоадер */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity var(--transition-slow);
}

.preloader.hidden {
  opacity: 0;
  pointer-events: none;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top: 4px solid var(--text-white);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Вспомогательные классы */
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.bg-blur {
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.1);
}

.hover-lift {
  transition: transform var(--transition-normal);
}

.hover-lift:hover {
  transform: translateY(-4px);
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Скроллбар */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}