:root {
  /* Тетрадная цветовая схема */
  --primary-color: #1a5f7a;
  --primary-dark: #0d3d50;
  --primary-light: #2a7d9c;
  
  --secondary-color: #d64933;
  --secondary-dark: #b33724;
  --secondary-light: #e86a57;
  
  --tertiary-color: #7a9e3f;
  --tertiary-dark: #5c7a2d;
  --tertiary-light: #96ba5c;
  
  --quaternary-color: #8e44ad;
  --quaternary-dark: #6c3382;
  --quaternary-light: #a55fc9;
  
  --white: #ffffff;
  --light-gray: #f5f5f7;
  --medium-gray: #e0e0e0;
  --dark-gray: #444444;
  --black: #1a1a1a;
  
  /* Тени */
  --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  --hover-shadow: 0 10px 25px rgba(26, 95, 122, 0.15);
  
  /* Переходы */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s cubic-bezier(0.65, 0.05, 0.36, 1);
  
  /* Скругления */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  
  /* Размеры контейнера */
  --container-width: 1200px;
  --container-padding: 20px;
}

/* Base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--dark-gray);
  background-color: var(--white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  color: var(--black);
  margin-bottom: 1rem;
  line-height: 1.2;
}

h1 {
  font-size: 3.5rem;
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 1.8rem;
}

h4 {
  font-size: 1.5rem;
}

p {
  margin-bottom: 1.5rem;
}

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

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

ul {
  list-style: none;
}

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

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

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
  color: var(--black);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--primary-color);
  border-radius: var(--border-radius-sm);
}

/* Overlay for sections with background images */
.overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to right, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4));
  z-index: 1;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-medium);
  border: none;
  font-family: 'DM Sans', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.9rem;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  box-shadow: var(--hover-shadow);
  transform: translateY(-2px);
  color: var(--white);
}

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

.btn-secondary:hover {
  background-color: var(--white);
  color: var(--primary-dark);
  box-shadow: var(--hover-shadow);
  transform: translateY(-2px);
}

.btn-small {
  padding: 8px 20px;
  font-size: 0.8rem;
}

/* Form elements */
input, textarea, select {
  width: 100%;
  padding: 12px;
  margin-bottom: 20px;
  border: 1px solid var(--medium-gray);
  border-radius: var(--border-radius-sm);
  font-family: 'DM Sans', sans-serif;
  transition: var(--transition-fast);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(26, 95, 122, 0.2);
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

/* Form check for checkboxes and radios */
.form-check {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
}

.form-check input {
  width: auto;
  margin-right: 10px;
  margin-bottom: 0;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--box-shadow);
  z-index: 1000;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
}

.logo h1 {
  margin: 0;
  font-size: 1.8rem;
  color: var(--primary-dark);
}

.logo a {
  color: inherit;
}

.main-nav ul {
  display: flex;
  gap: 30px;
}

.main-nav a {
  color: var(--dark-gray);
  font-weight: 500;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition-medium);
}

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

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

.burger-menu {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
  cursor: pointer;
}

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

/* Hero Section */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--white);
  margin-top: 0;
  padding-top: 80px;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero-content h1 {
  color: var(--white);
  margin-bottom: 1rem;
  font-size: 3.5rem;
}

.hero-content h2 {
  color: var(--white);
  margin-bottom: 1.5rem;
  font-size: 2rem;
}

.hero-content p {
  color: var(--white);
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  gap: 15px;
}

/* About Section */
.about {
  padding: 100px 0;
  background-color: var(--white);
}

.about-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 50px;
}

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

.about-image {
  flex: 1;
  min-width: 300px;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: var(--transition-slow);
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

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

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

/* Services Section */
.services {
  padding: 100px 0;
  background-color: var(--light-gray);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.card {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  transition: var(--transition-medium);
  display: flex;
  flex-direction: column;
  height: 100%;
}

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

.card-image {
  width: 100%;
  height: 230px;
  overflow: hidden;
}

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

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

.card-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.card-content h3 {
  margin-bottom: 15px;
  color: var(--primary-dark);
}

/* Vision Section */
.vision {
  position: relative;
  padding: 120px 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--white);
}

.vision-content {
  position: relative;
  z-index: 2;
}

.vision-content h2 {
  color: var(--white);
}

.vision-text {
  margin-bottom: 50px;
  max-width: 800px;
  margin: 0 auto 50px;
}

.vision-text p {
  color: var(--white);
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.vision-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  gap: 30px;
  margin-top: 50px;
}

.stat-item {
  text-align: center;
  padding: 20px;
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  border-radius: var(--border-radius-md);
  flex: 1;
  min-width: 200px;
  transition: var(--transition-medium);
}

.stat-item:hover {
  transform: translateY(-10px);
  background-color: rgba(255, 255, 255, 0.2);
}

.stat-item h3 {
  color: var(--white);
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.stat-item p {
  color: var(--white);
  font-size: 1.1rem;
  margin-bottom: 0;
}

/* Clientele Section */
.clientele {
  padding: 100px 0;
  background-color: var(--white);
}

.clientele-content {
  display: flex;
  flex-direction: column;
  gap: 50px;
}

.clientele-text {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.clientele-carousel {
  margin: 50px 0;
}

.carousel-container {
  display: flex;
  gap: 30px;
  transition: transform var(--transition-slow);
  overflow: hidden;
}

.carousel-item {
  flex: 0 0 200px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background-color: var(--light-gray);
  border-radius: var(--border-radius-md);
  transition: var(--transition-medium);
}

.carousel-item:hover {
  transform: scale(1.05);
  background-color: var(--medium-gray);
}

.carousel-controls {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
}

.testimonials {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.testimonial-item {
  background-color: var(--light-gray);
  padding: 30px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow);
  transition: var(--transition-medium);
}

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

.testimonial-item p {
  font-style: italic;
  margin-bottom: 20px;
}

.testimonial-item h4 {
  color: var(--primary-dark);
  font-size: 1.1rem;
}

/* Resources Section */
.resources {
  padding: 100px 0;
  background-color: var(--light-gray);
}

.resources-content {
  max-width: 900px;
  margin: 0 auto;
}

.resources-intro {
  text-align: center;
  margin-bottom: 50px;
}

.resources-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.resource-item {
  background-color: var(--white);
  padding: 25px;
  border-radius: var(--border-radius-md);
  box-shadow: var(--box-shadow);
  transition: var(--transition-medium);
}

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

.resource-item h3 {
  margin-bottom: 15px;
  font-size: 1.3rem;
}

.resource-item h3 a {
  color: var(--quaternary-color);
  transition: var(--transition-medium);
}

.resource-item h3 a:hover {
  color: var(--quaternary-dark);
  text-decoration: underline;
}

.resource-item p {
  font-size: 0.95rem;
  color: var(--dark-gray);
  margin-bottom: 0;
}

/* Innovation Section */
.innovation {
  position: relative;
  padding: 120px 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--white);
}

.innovation-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 50px;
}

.innovation-content h2 {
  color: var(--white);
}

.innovation-text {
  max-width: 800px;
  margin: 0 auto;
}

.innovation-text p {
  color: var(--white);
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.innovation-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.gallery-item {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  transition: var(--transition-medium);
  text-align: center;
}

.gallery-item:hover {
  transform: translateY(-10px);
  box-shadow: var(--hover-shadow);
  background-color: rgba(255, 255, 255, 0.2);
}

.gallery-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item h3 {
  color: var(--white);
  padding: 20px;
  margin-bottom: 0;
}

/* Webinars Section */
.webinars {
  padding: 100px 0;
  background-color: var(--white);
}

.webinars-content {
  display: flex;
  flex-wrap: wrap;
  gap: 50px;
}

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

.webinars-schedule {
  flex: 1;
  min-width: 300px;
}

.webinars-schedule h3 {
  margin-bottom: 30px;
  color: var(--primary-dark);
}

.webinar-item {
  display: flex;
  gap: 20px;
  margin-bottom: 30px;
  background-color: var(--light-gray);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  transition: var(--transition-medium);
}

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

.webinar-date {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 100px;
}

.webinar-date .day {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
}

.webinar-date .month {
  font-size: 0.9rem;
}

.webinar-info {
  padding: 20px;
  flex-grow: 1;
}

.webinar-info h4 {
  margin-bottom: 10px;
  color: var(--primary-dark);
}

.webinar-info p {
  margin-bottom: 15px;
}

/* Contact Section */
.contact {
  padding: 100px 0;
  background-color: var(--light-gray);
}

.contact-content {
  display: flex;
  flex-wrap: wrap;
  gap: 50px;
}

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

.contact-info h3 {
  color: var(--primary-dark);
  margin-bottom: 20px;
}

.contact-info p {
  margin-bottom: 15px;
}

.contact-map {
  margin-top: 30px;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--box-shadow);
}

.contact-map img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.contact-form {
  flex: 1;
  min-width: 300px;
  background-color: var(--white);
  padding: 30px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow);
}

.form-group {
  margin-bottom: 20px;
}

/* Footer */
.footer {
  background-color: var(--primary-dark);
  color: var(--white);
  padding: 70px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 50px;
  margin-bottom: 50px;
}

.footer-info h3 {
  color: var(--white);
  margin-bottom: 20px;
}

.footer-info p {
  color: var(--medium-gray);
}

.footer-links h4, .footer-contact h4, .footer-social h4 {
  color: var(--white);
  margin-bottom: 20px;
}

.footer-links ul, .footer-social ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

.footer-links a:hover, .footer-social a:hover {
  color: var(--white);
  text-decoration: underline;
}

.footer-contact p {
  color: var(--medium-gray);
  margin-bottom: 10px;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: var(--medium-gray);
  margin-bottom: 0;
}

/* Success Page */
.success-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background-color: var(--light-gray);
  padding: 100px 0;
}

.success-content {
  text-align: center;
  max-width: 600px;
  padding: 50px;
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--card-shadow);
}

.success-content h1 {
  color: var(--primary-dark);
  margin-bottom: 20px;
}

.success-content p {
  margin-bottom: 30px;
}

/* Privacy and Terms Pages */
.privacy-page, .terms-page {
  padding: 150px 0 100px;
}

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

.privacy-content h1, .terms-content h1 {
  color: var(--primary-dark);
  margin-bottom: 30px;
}

.privacy-content h2, .terms-content h2 {
  color: var(--primary-dark);
  margin: 40px 0 20px;
}

.privacy-content p, .terms-content p {
  margin-bottom: 20px;
}

.privacy-content ul, .terms-content ul {
  margin-bottom: 20px;
  padding-left: 20px;
}

.privacy-content ul li, .terms-content ul li {
  list-style: disc;
  margin-bottom: 10px;
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mb-0 {
  margin-bottom: 0;
}

.mb-1 {
  margin-bottom: 10px;
}

.mb-2 {
  margin-bottom: 20px;
}

.mb-3 {
  margin-bottom: 30px;
}

.mb-4 {
  margin-bottom: 40px;
}

.mt-1 {
  margin-top: 10px;
}

.mt-2 {
  margin-top: 20px;
}

.mt-3 {
  margin-top: 30px;
}

.mt-4 {
  margin-top: 40px;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  h1 {
    font-size: 3rem;
  }
  
  h2 {
    font-size: 2.2rem;
  }
  
  .hero-content h1 {
    font-size: 3rem;
  }
  
  .hero-content h2 {
    font-size: 1.8rem;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--white);
    box-shadow: var(--box-shadow);
    padding: 20px;
  }
  
  .main-nav.active {
    display: block;
  }
  
  .main-nav ul {
    flex-direction: column;
    gap: 15px;
  }
  
  .burger-menu {
    display: flex;
  }
  
  .burger-menu.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .burger-menu.active span:nth-child(2) {
    opacity: 0;
  }
  
  .burger-menu.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .hero-content h2 {
    font-size: 1.5rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: 10px;
  }
  
  .hero-buttons .btn {
    width: 100%;
  }
  
  .about-content, .webinars-content, .contact-content {
    flex-direction: column;
  }
  
  .stat-item h3 {
    font-size: 2rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.7rem;
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .hero-content h2 {
    font-size: 1.3rem;
  }
  
  .hero-content p {
    font-size: 1rem;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
  
  .webinar-item {
    flex-direction: column;
  }
  
  .webinar-date {
    width: 100%;
    padding: 10px;
    flex-direction: row;
    justify-content: center;
    gap: 10px;
  }
}

/* Cookie popup styles */
#cookie-popup {
  background-color: rgba(26, 26, 26, 0.9);
  padding: 20px;
  border-top: 3px solid var(--primary-color);
}

#cookie-popup p {
  margin-bottom: 15px;
  color: var(--white);
  max-width: 800px;
  margin: 0 auto 15px;
}

#accept-cookies {
  background-color: var(--primary-color) !important;
  color: var(--white) !important;
  border: none !important;
  transition: var(--transition-medium);
}

#accept-cookies:hover {
  background-color: var(--primary-dark) !important;
  transform: translateY(-2px);
}