:root {
  /* Тетрадная цветовая схема с ретро-оттенками */
  --primary: #ff6b4a;       /* Красно-оранжевый */
  --primary-dark: #e05a3b;
  --secondary: #4ecdc4;     /* Бирюзовый */
  --secondary-dark: #3db4ac;
  --accent-1: #ffe74c;      /* Ярко-желтый */
  --accent-1-dark: #e6d045;
  --accent-2: #6a7fdb;      /* Синий */
  --accent-2-dark: #5a6cbe;
  
  /* Нейтральные цвета для эко-минимализма */
  --neutral-100: #ffffff;
  --neutral-200: #f8f9fa;
  --neutral-300: #e9ecef;
  --neutral-400: #dee2e6;
  --neutral-500: #adb5bd;
  --neutral-600: #6c757d;
  --neutral-700: #495057;
  --neutral-800: #343a40;
  --neutral-900: #212529;
  
  /* Фоновые градиенты */
  --gradient-primary: linear-gradient(135deg, var(--primary), #ff8c6a);
  --gradient-secondary: linear-gradient(135deg, var(--secondary), #6ae6de);
  
  /* Тени */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
  
  /* Радиусы границ */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Переходы */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Размеры текста */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
}

/* ===== Базовые стили ===== */
body {
  font-family: 'Lato', sans-serif;
  color: var(--neutral-800);
  background-color: var(--neutral-100);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Roboto', sans-serif;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--neutral-900);
}

a {
  color: var(--accent-2);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-2-dark);
  text-decoration: underline;
}

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

.section-title {
  font-size: var(--text-4xl);
  text-align: center;
  margin-bottom: 1rem;
  position: relative;
  color: var(--neutral-900);
}

.section-subtitle {
  font-size: var(--text-xl);
  text-align: center;
  margin-bottom: 2.5rem;
  color: var(--neutral-700);
}

/* ===== Кнопки и интерактивные элементы ===== */
.btn,
button,
input[type="submit"] {
  display: inline-block;
  font-weight: 500;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-family: 'Roboto', sans-serif;
}

.btn-primary,
.btn-primary:focus {
  background-color: var(--primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: white;
  text-decoration: none;
}

.btn-outline-light {
  background-color: transparent;
  color: white;
  border: 2px solid white;
}

.btn-outline-light:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  transform: translateY(-2px);
  text-decoration: none;
}

.btn-secondary,
.btn-secondary:focus {
  background-color: var(--secondary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--secondary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: white;
  text-decoration: none;
}

/* ===== Хедер и навигация ===== */
.header {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
  padding: 1rem 0;
  z-index: 1000;
  transition: all var(--transition-normal);
}

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

.navbar-brand {
  font-family: 'Roboto', sans-serif;
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--primary);
  transition: color var(--transition-fast);
}

.navbar-brand:hover {
  color: var(--primary-dark);
  text-decoration: none;
}

.navbar-toggler {
  border: none;
  padding: 0.5rem;
  color: var(--neutral-800);
}

.navbar-toggler:focus {
  box-shadow: none;
  outline: none;
}

.nav-link {
  color: var(--neutral-800);
  font-weight: 500;
  padding: 0.5rem 1rem;
  margin: 0 0.25rem;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 50%;
  background-color: var(--primary);
  transition: all var(--transition-normal);
  transform: translateX(-50%);
}

.nav-link:hover {
  color: var(--primary);
  text-decoration: none;
}

.nav-link:hover::after {
  width: 70%;
}

/* ===== Hero Section ===== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: white;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}

.hero-section h1 {
  color: white;
  margin-bottom: 1.5rem;
  font-size: var(--text-5xl);
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

.hero-section p {
  color: white;
  font-size: var(--text-xl);
  margin-bottom: 2rem;
  max-width: 600px;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

/* ===== Vision Section ===== */
.vision-section {
  padding: 5rem 0;
  background-color: var(--neutral-100);
}

.vision-section h3 {
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.vision-section p {
  margin-bottom: 1.5rem;
  color: var(--neutral-700);
}

.image-container {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin-bottom: 1.5rem;
  text-align: center;
}

.image-container img {
  transition: transform var(--transition-slow);
  margin: 0 auto;
}

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

/* ===== Portfolio Section ===== */
.portfolio-section {
  padding: 5rem 0;
  background-color: var(--neutral-200);
}

.card {
  background-color: var(--neutral-100);
  border-radius: var(--radius-lg);
  border: none;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.card-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
  text-align: 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(1.1);
}

.card-content {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.card-content h3 {
  color: var(--neutral-900);
  margin-bottom: 1rem;
}

.card-content p {
  color: var(--neutral-700);
  margin-bottom: 1.5rem;
}

.card-content .btn {
  margin-top: auto;
}

/* ===== Case Studies Section ===== */
.case-studies-section {
  padding: 5rem 0;
  background-color: var(--neutral-100);
}

.custom-slider {
  position: relative;
  margin: 0 auto;
}

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

.slide {
  padding: 2rem;
  background-color: var(--neutral-200);
}

.slide h3 {
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.client-name {
  color: var(--neutral-700);
  font-style: italic;
  margin-bottom: 1.5rem;
}

.slider-controls {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

.prev-btn,
.next-btn {
  background-color: var(--accent-2);
  color: white;
  border: none;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 0.5rem;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  box-shadow: var(--shadow-md);
}

.prev-btn:hover,
.next-btn:hover {
  background-color: var(--accent-2-dark);
  transform: scale(1.1);
}

/* ===== Instructors Section ===== */
.instructors-section {
  padding: 5rem 0;
  background-color: var(--neutral-200);
}

.instructor-title {
  color: var(--accent-2);
  font-weight: 600;
  margin-bottom: 1rem;
}

/* ===== Sustainability Section ===== */
.sustainability-section {
  padding: 5rem 0;
  background-color: var(--neutral-100);
}

.sustainability-section h3 {
  color: var(--secondary);
  margin-bottom: 1.5rem;
}

/* ===== Press Section ===== */
.press-section {
  padding: 5rem 0;
  background-color: var(--neutral-200);
}

.date {
  color: var(--neutral-600);
  font-size: var(--text-sm);
  margin-top: 1rem;
}

/* ===== Projects Section ===== */
.projects-section {
  padding: 5rem 0;
  background-color: var(--neutral-100);
}

/* ===== Resources Section ===== */
.resources-section {
  padding: 5rem 0;
  background-color: var(--neutral-200);
}

.resource-links {
  list-style-type: none;
  padding-left: 0;
}

.resource-links li {
  margin-bottom: 0.75rem;
}

.resource-links a {
  color: var(--accent-2);
  font-weight: 500;
  transition: color var(--transition-fast);
  display: inline-block;
  position: relative;
}

.resource-links a::after {
  content: '→';
  margin-left: 0.5rem;
  transition: transform var(--transition-fast);
  display: inline-block;
}

.resource-links a:hover {
  color: var(--accent-2-dark);
}

.resource-links a:hover::after {
  transform: translateX(5px);
}

/* ===== Contact Section ===== */
.contact-section {
  padding: 5rem 0;
  background-color: var(--neutral-100);
}

.contact-form-container {
  background-color: var(--neutral-200);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.contact-info h3 {
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.contact-details {
  list-style-type: none;
  padding-left: 0;
  margin-bottom: 2rem;
}

.contact-details li {
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
}

.contact-details li i {
  margin-right: 1rem;
  color: var(--primary);
}

.form-control,
.form-select {
  padding: 0.75rem 1rem;
  border: 1px solid var(--neutral-400);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  background-color: var(--neutral-100);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 0.25rem rgba(106, 127, 219, 0.25);
  outline: none;
}

.form-check-input {
  cursor: pointer;
}

.form-check-input:checked {
  background-color: var(--primary);
  border-color: var(--primary);
}

/* ===== Footer ===== */
.footer {
  background-color: var(--neutral-800);
  color: var(--neutral-200);
  padding: 5rem 0 2rem;
}

.footer h3 {
  color: white;
  margin-bottom: 1.5rem;
}

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

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a,
.social-links a {
  color: var(--neutral-300);
  transition: color var(--transition-fast);
}

.footer-links a:hover,
.social-links a:hover {
  color: var(--primary);
  text-decoration: none;
}

.social-links {
  list-style-type: none;
  padding-left: 0;
  display: flex;
  flex-wrap: wrap;
}

.social-links li {
  margin-right: 1.5rem;
  margin-bottom: 0.75rem;
}

.newsletter .input-group {
  margin-top: 1rem;
}

.newsletter input {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.newsletter button {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

hr {
  border-color: var(--neutral-700);
  opacity: 0.25;
}

/* ===== Cookie Consent ===== */
#cookie-consent {
  background-color: rgba(33, 37, 41, 0.9);
  backdrop-filter: blur(10px);
  color: white;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  margin: 1rem;
  box-shadow: var(--shadow-lg);
  max-width: 100%;
}

#cookie-consent p {
  margin-bottom: 1rem;
}

#accept-cookies {
  background-color: var(--primary);
  color: white;
  border: none;
  padding: 0.5rem 1.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

#accept-cookies:hover {
  background-color: var(--primary-dark);
}

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
  .section-title {
    font-size: var(--text-3xl);
  }
  
  .section-subtitle {
    font-size: var(--text-lg);
  }
  
  .hero-section h1 {
    font-size: var(--text-4xl);
  }
  
  .hero-section p {
    font-size: var(--text-lg);
  }
  
  .navbar-collapse {
    background-color: rgba(255, 255, 255, 0.95);
    padding: 1rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    margin-top: 1rem;
  }
  
  .nav-link {
    padding: 0.75rem 1rem;
  }
}

@media (max-width: 767.98px) {
  .section-title {
    font-size: var(--text-2xl);
  }
  
  .section-subtitle {
    font-size: var(--text-base);
  }
  
  .hero-section h1 {
    font-size: var(--text-3xl);
  }
  
  .hero-section p {
    font-size: var(--text-base);
  }
  
  .card-image {
    height: 200px;
  }
}

/* ===== Success, Privacy, Terms Pages ===== */
.success-page {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  text-align: center;
  padding: 2rem;
  background-color: var(--neutral-100);
}

.success-container {
  max-width: 600px;
  margin: 0 auto;
  padding: 3rem;
  background-color: var(--neutral-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

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

.privacy-page,
.terms-page {
  padding-top: 100px;
  padding-bottom: 5rem;
}

.privacy-container,
.terms-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
  background-color: var(--neutral-100);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.privacy-container h1,
.terms-container h1 {
  text-align: center;
  margin-bottom: 2rem;
  color: var(--primary);
}

.privacy-container h2,
.terms-container h2 {
  color: var(--accent-2);
  margin-top: 2.5rem;
  margin-bottom: 1.5rem;
}

/* ===== Animation Styles ===== */
[data-aos] {
  pointer-events: none;
}

[data-aos].aos-animate {
  pointer-events: auto;
}

/* Добавляем анимацию для частиц */
@keyframes float {
  0% {
    transform: translateY(0) rotate(0);
  }
  50% {
    transform: translateY(-20px) rotate(5deg);
  }
  100% {
    transform: translateY(0) rotate(0);
  }
}

.particle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.5;
  pointer-events: none;
}

/* Дополнительные стили для читаемости */
.bg-overlay {
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.7));
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.content-container {
  position: relative;
  z-index: 1;
}

/* Эффект параллакса для фоновых изображений */
.parallax-bg {
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

/* Стили для "Читать далее" ссылок */
.read-more-link {
  display: inline-block;
  color: var(--primary);
  font-weight: 600;
  margin-top: 1rem;
  position: relative;
  padding-right: 25px;
  transition: color var(--transition-fast);
}

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

.read-more-link:hover {
  color: var(--primary-dark);
  text-decoration: none;
}

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

/* Анимация для navbar при прокрутке */
.navbar.navbar-shrink {
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

/* Специальные стили для карточек портфолио */
.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.7));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-title {
  color: white;
  margin-bottom: 0.5rem;
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.portfolio-category {
  color: var(--neutral-300);
  font-size: var(--text-sm);
  transform: translateY(20px);
  transition: transform var(--transition-normal) 0.1s;
}

.portfolio-item:hover .portfolio-title,
.portfolio-item:hover .portfolio-category {
  transform: translateY(0);
}

/* Стили для контактной формы */
.form-floating > .form-control,
.form-floating > .form-select {
  height: calc(3.5rem + 2px);
  padding: 1rem 0.75rem;
}

.form-floating > label {
  padding: 1rem 0.75rem;
}

.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label,
.form-floating > .form-select ~ label {
  opacity: 0.65;
  transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
}

/* Общие утилиты */
.text-primary {
  color: var(--primary) !important;
}

.text-secondary {
  color: var(--secondary) !important;
}

.bg-primary {
  background-color: var(--primary) !important;
}

.bg-secondary {
  background-color: var(--secondary) !important;
}

.shadow {
  box-shadow: var(--shadow-md) !important;
}