/* CSS Variables для раздельно-дополнительной цветовой схемы */
:root {
  /* Основные цвета */
  --primary-color: #2E86AB;
  --primary-light: #4DA1C7;
  --primary-dark: #1E5F7A;
  
  /* Дополнительные цвета */
  --secondary-color: #F24236;
  --secondary-light: #FF6B5B;
  --secondary-dark: #D12B1F;
  
  /* Акцентные цвета */
  --accent-color: #F6AE2D;
  --accent-light: #FFD23F;
  --accent-dark: #E89611;
  
  /* Нейтральные цвета для нейроморфизма */
  --neutral-bg: #F0F2F5;
  --neutral-light: #FFFFFF;
  --neutral-dark: #2C3E50;
  --neutral-gray: #95A5A6;
  --neutral-shadow-light: rgba(255, 255, 255, 0.8);
  --neutral-shadow-dark: rgba(174, 174, 192, 0.4);
  
  /* 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-color), var(--accent-light));
  --gradient-hero: linear-gradient(135deg, rgba(46, 134, 171, 0.8), rgba(242, 66, 54, 0.6));
  
  /* Тени для нейроморфизма */
  --shadow-neumorphic: 12px 12px 20px var(--neutral-shadow-dark), -8px -8px 20px var(--neutral-shadow-light);
  --shadow-neumorphic-inset: inset 8px 8px 16px var(--neutral-shadow-dark), inset -4px -4px 16px var(--neutral-shadow-light);
  --shadow-hover: 16px 16px 25px var(--neutral-shadow-dark), -10px -10px 25px var(--neutral-shadow-light);
  
  /* Шрифты */
  --font-primary: 'Roboto', sans-serif;
  --font-secondary: 'Lato', sans-serif;
  
  /* Размеры и отступы */
  --border-radius: 20px;
  --border-radius-small: 12px;
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  
  /* Переходы */
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

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

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

/* Типографика */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
}

.title {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  color: var(--neutral-gray);
  font-weight: 400;
}

/* ГЛОБАЛЬНЫЕ стили кнопок */
.btn,
.button,
input[type='submit'],
button[type='submit'] {
  background: var(--neutral-bg);
  border: none;
  border-radius: var(--border-radius);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-primary);
  font-weight: 500;
  font-size: 1rem;
  color: var(--neutral-dark);
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-neumorphic);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  min-width: 120px;
  text-align: center;
}

.btn:hover,
.button:hover,
input[type='submit']:hover,
button[type='submit']:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.btn:active,
.button:active,
input[type='submit']:active,
button[type='submit']:active {
  box-shadow: var(--shadow-neumorphic-inset);
  transform: translateY(0);
}

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

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

.btn.is-accent,
.button.is-accent {
  background: var(--gradient-accent);
  color: var(--neutral-dark);
}

.btn.is-light,
.button.is-light {
  background: var(--neutral-light);
  color: var(--neutral-dark);
}

/* Нейроморфные элементы */
.neumorphic-card {
  background: var(--neutral-bg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-neumorphic);
  border: none;
  transition: var(--transition-smooth);
}

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

.neumorphic-btn {
  box-shadow: var(--shadow-neumorphic);
  transition: var(--transition-bounce);
}

.neumorphic-btn:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.neumorphic-input {
  background: var(--neutral-bg);
  border: none;
  border-radius: var(--border-radius-small);
  box-shadow: var(--shadow-neumorphic-inset);
  padding: var(--spacing-sm);
  transition: var(--transition-smooth);
}

.neumorphic-input:focus {
  outline: none;
  box-shadow: var(--shadow-neumorphic-inset), 0 0 0 3px rgba(46, 134, 171, 0.2);
}

.neumorphic-select select {
  background: var(--neutral-bg);
  border: none;
  border-radius: var(--border-radius-small);
  box-shadow: var(--shadow-neumorphic-inset);
}

/* Контейнеры */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.main-container {
  padding-top: 70px;
}

/* Header и Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.navbar {
  background: rgba(240, 242, 245, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  transition: var(--transition-smooth);
}

.navbar-item {
  color: var(--neutral-dark);
  font-weight: 500;
  transition: var(--transition-smooth);
  position: relative;
}

.navbar-item:hover {
  color: var(--primary-color);
  background: transparent;
}

.navbar-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-smooth);
  transform: translateX(-50%);
}

.navbar-item:hover::after {
  width: 80%;
}

.logo {
  font-family: var(--font-primary);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Hero Section */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

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

.hero-body {
  position: relative;
  z-index: 2;
  padding: var(--spacing-xl) 0;
}

.hero-content {
  text-align: left;
  animation: slideInLeft 1s ease-out;
}

.hero-content .title {
  color: white !important;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: white;
  font-size: 3.5rem;
  margin-bottom: var(--spacing-md);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content .subtitle {
  color: rgba(255, 255, 255, 0.9) !important;
  font-size: 1.3rem;
  margin-bottom: var(--spacing-lg);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.hero-image {
  animation: slideInRight 1s ease-out 0.3s both;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-neumorphic);
  transition: var(--transition-smooth);
}

.hero-image img:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-hover);
}

.parallax-container {
  transform-style: preserve-3d;
}

/* Секции */
.section {
  padding: var(--spacing-xl) 0;
  position: relative;
}

.section:nth-child(even) {
  background: linear-gradient(45deg, rgba(240, 242, 245, 0.5), rgba(255, 255, 255, 0.8));
}

/* Mission Section */
.mission-section {
  background: var(--neutral-light);
}

/* Services Section */
.services-section {
  position: relative;
}

.service-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: var(--transition-smooth);
}

.service-card .card-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-card .card-image .image-container {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.service-card:hover .card-image img {
  transform: scale(1.1);
}

.service-card .card-content {
  padding: var(--spacing-md);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

/* Process Section */
.process-section {
  background: var(--neutral-light);
}

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

.timeline {
  position: relative;
  padding-left: 30px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-xl);
  animation: fadeInUp 0.6s ease-out;
}

.timeline-marker {
  position: absolute;
  left: -10px;
  top: 20px;
  width: 24px;
  height: 24px;
  background: var(--gradient-primary);
  border-radius: 50%;
  box-shadow: var(--shadow-neumorphic);
}

.timeline-content {
  background: var(--neutral-bg);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-neumorphic);
  margin-left: var(--spacing-lg);
  transition: var(--transition-smooth);
}

.timeline-content:hover {
  box-shadow: var(--shadow-hover);
  transform: translateX(10px);
}

/* Projects Section - Слайдер */
.projects-section {
  overflow: hidden;
}

.custom-slider {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
}

.slider-track {
  display: flex;
  transition: transform 0.5s ease;
  gap: var(--spacing-md);
}

.slide {
  min-width: calc(33.333% - var(--spacing-md));
  flex-shrink: 0;
}

.slide .card {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.slide .card-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.slider-controls {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.prev-btn,
.next-btn {
  background: var(--neutral-bg);
  border: none;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-neumorphic);
  transition: var(--transition-smooth);
  font-size: 1.2rem;
  color: var(--neutral-dark);
}

.prev-btn:hover,
.next-btn:hover {
  box-shadow: var(--shadow-hover);
  background: var(--gradient-primary);
  color: white;
}

/* Research Section */
.research-section {
  background: var(--neutral-light);
}

.accordion-item {
  margin-bottom: var(--spacing-sm);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.accordion-header {
  padding: var(--spacing-md);
  cursor: pointer;
  transition: var(--transition-smooth);
  background: var(--neutral-bg);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.accordion-header:hover {
  background: var(--gradient-primary);
  color: white;
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.accordion-content.active {
  max-height: 500px;
}

.accordion-body {
  padding: var(--spacing-md);
  background: white;
}

.accordion-body img {
  width: 100%;
  max-width: 600px;
  height: auto;
  border-radius: var(--border-radius);
  margin: var(--spacing-sm) 0;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

/* News Section */
.news-section {
  position: relative;
}

.news-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  text-align: center;
  transition: var(--transition-smooth);
}

.news-card .card-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

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

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

.news-date {
  color: var(--primary-color);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.news-card .card-content {
  padding: var(--spacing-md);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  text-align: center;
}

/* Media Section */
.media-section {
  background: var(--neutral-light);
}

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

.media-section .card-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.media-section .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  margin: 0 auto;
}

/* External Resources Section */
.external-resources-section {
  position: relative;
}

.resource-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: var(--transition-smooth);
  background: var(--gradient-accent);
  color: var(--neutral-dark);
}

.resource-card:hover {
  transform: translateY(-5px) rotate(2deg);
  box-shadow: var(--shadow-hover);
}

/* Contact Section */
.contact-section {
  background: var(--neutral-light);
}

.contact-form-card {
  padding: var(--spacing-lg);
}

.contact-form .field {
  margin-bottom: var(--spacing-md);
}

.contact-form .label {
  color: var(--neutral-dark);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  font-family: var(--font-primary);
}

.contact-info p {
  margin-bottom: var(--spacing-sm);
  line-height: 1.8;
}

.contact-info strong {
  color: var(--primary-color);
  font-family: var(--font-primary);
}

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

.footer .title,
.footer .title.is-5,
.footer .title.is-6 {
  color: white;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: white;
}

.footer a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.footer a:hover {
  color: var(--accent-color);
  text-decoration: underline;
}

.footer ul {
  list-style: none;
}

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

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

.social-links a {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-small);
  transition: var(--transition-smooth);
  text-decoration: none;
}

.social-links a:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
  text-decoration: none;
}

/* Специальные страницы */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
}

.success-content {
  background: var(--neutral-light);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-neumorphic);
  text-align: center;
  max-width: 600px;
}

.privacy-page,
.terms-page {
  padding-top: 100px;
  min-height: 100vh;
}

.privacy-content,
.terms-content {
  background: var(--neutral-light);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-neumorphic);
  margin-bottom: var(--spacing-xl);
}

/* Анимации */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Прокрутка-зависимые эффекты */
.scroll-reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Адаптивность */
@media (max-width: 1024px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .hero-content .title {
    font-size: 2.5rem;
  }
  
  .slide {
    min-width: calc(50% - var(--spacing-sm));
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-xl: 32px;
    --spacing-lg: 24px;
  }
  
  .hero-content .title {
    font-size: 2rem;
  }
  
  .hero-content .subtitle {
    font-size: 1.1rem;
  }
  
  .timeline {
    padding-left: 20px;
  }
  
  .timeline-content {
    margin-left: var(--spacing-sm);
  }
  
  .slide {
    min-width: calc(100% - var(--spacing-sm));
  }
  
  .columns.is-multiline .column {
    margin-bottom: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .hero-content {
    text-align: center;
  }
  
  .hero-content .title {
    font-size: 1.8rem;
  }
  
  .buttons {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .btn,
  .button {
    width: 100%;
  }
  
  .navbar-burger {
    color: var(--neutral-dark);
  }
  
  .social-links {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Утилиты для центрирования карточек */
.card,
.item,
.testimonial,
.team-member,
.product-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.card .card-image,
.item .image,
.testimonial .image,
.team-member .image,
.product-card .image {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.card .card-image img,
.item .image img,
.testimonial .image img,
.team-member .image img,
.product-card .image img {
  margin: 0 auto;
  object-fit: cover;
}

/* Ссылки "Читать далее" */
.read-more-link,
.read-more {
  color: var(--primary-color);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-sm);
  transition: var(--transition-smooth);
}

.read-more-link:hover,
.read-more:hover {
  color: var(--secondary-color);
  transform: translateX(5px);
}

.read-more-link::after,
.read-more::after {
  content: '→';
  transition: var(--transition-smooth);
}

.read-more-link:hover::after,
.read-more:hover::after {
  transform: translateX(3px);
}

/* Дополнительные стили для улучшения UX */
.loading {
  opacity: 0.7;
  pointer-events: none;
}

.error {
  border: 2px solid var(--secondary-color) !important;
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

/* Асимметричный баланс */
.asymmetric-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-lg);
  align-items: start;
}

@media (max-width: 768px) {
  .asymmetric-layout {
    grid-template-columns: 1fr;
  }
}

/* Гласморфизм эффекты */
.glass-effect {
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

/* Плавная прокрутка для всех браузеров */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

/* Улучшения доступности */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Фокус для доступности */
button:focus,
input:focus,
select:focus,
textarea:focus,
a:focus {
  outline: 3px solid var(--accent-color);
  outline-offset: 2px;
}

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

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

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

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