:root {
  /* Брутализм и нео-брутализм цветовая палитра - монохромная */
  --color-black: #000000;
  --color-white: #ffffff;
  --color-gray-100: #f5f5f5;
  --color-gray-200: #e0e0e0;
  --color-gray-300: #cccccc;
  --color-gray-400: #aaaaaa;
  --color-gray-500: #888888;
  --color-gray-600: #666666;
  --color-gray-700: #444444;
  --color-gray-800: #333333;
  --color-gray-900: #222222;
  
  /* Акцентные цвета */
  --color-accent: #1a1a1a;
  --color-accent-light: #2a2a2a;
  --color-accent-dark: #0a0a0a;
  
  /* Тени */
  --shadow-sm: 4px 4px 0 var(--color-black);
  --shadow-md: 6px 6px 0 var(--color-black);
  --shadow-lg: 8px 8px 0 var(--color-black);
  
  /* Переходы и анимации */
  --transition-fast: 0.2s cubic-bezier(0.34, 1.56, 0.64, 1); /* Упругая анимация */
  --transition-medium: 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-slow: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  
  /* Границы */
  --border-thin: 2px solid var(--color-black);
  --border-regular: 3px solid var(--color-black);
  --border-thick: 5px solid var(--color-black);
  
  /* Радиусы */
  --radius-sm: 0px;
  --radius-md: 0px;
  --radius-lg: 0px;
  
  /* Типографика */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  
  /* Размеры */
  --container-width: 1200px;
  --header-height: 80px;
}

/* Базовые стили */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  color: var(--color-gray-900);
  background-color: var(--color-white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

h1 {
  font-size: 3.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
  text-align: center;
}

h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: var(--color-black);
}

h3 {
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}

h4 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

a {
  color: var(--color-black);
  text-decoration: none;
  transition: all var(--transition-fast);
  font-weight: 500;
}

a:hover {
  color: var(--color-gray-600);
}

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 5rem 0;
  position: relative;
}

section:nth-child(odd) {
  background-color: var(--color-gray-100);
}

/* Заголовки секций */
section h2 {
  width: 100%;
  text-align: center;
  margin-bottom: 3rem;
}

.section-intro {
  max-width: 800px;
  margin: 0 auto 3rem auto;
  text-align: center;
  font-size: 1.1rem;
}

/* Кнопки */
.btn, 
button, 
input[type="submit"] {
  display: inline-block;
  background-color: var(--color-black);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  padding: 0.75rem 1.5rem;
  border: var(--border-regular);
  cursor: pointer;
  transition: all var(--transition-medium);
  box-shadow: var(--shadow-sm);
  text-align: center;
  font-size: 1rem;
  letter-spacing: 0.05em;
}

.btn:hover, 
button:hover, 
input[type="submit"]:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-md);
  background-color: var(--color-white);
  color: var(--color-black);
}

.btn:active, 
button:active, 
input[type="submit"]:active {
  transform: translate(0, 0);
  box-shadow: var(--shadow-sm);
}

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

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

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

/* Формы */
input, 
select, 
textarea {
  width: 100%;
  padding: 0.75rem;
  margin-bottom: 1rem;
  border: var(--border-thin);
  background-color: var(--color-white);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

input:focus, 
select:focus, 
textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--color-white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  height: var(--header-height);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
}

.logo a {
  color: var(--color-black);
  text-decoration: none;
}

.logo span {
  color: var(--color-accent);
}

.main-nav ul {
  display: flex;
  gap: 1.5rem;
}

.main-nav a {
  font-family: var(--font-heading);
  font-weight: 500;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  position: relative;
}

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

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

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

.bar {
  height: 3px;
  width: 100%;
  background-color: var(--color-black);
  transition: all var(--transition-fast);
}

/* Hero Section */
.hero-section {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: -1;
}

.hero-background::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.4));
}

.hero-content {
  color: var(--color-white);
  text-align: center;
  max-width: 800px;
  z-index: 1;
  padding: 2rem;
}

.hero-content h1 {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  text-shadow: 3px 3px 0 rgba(0, 0, 0, 0.2);
  animation: fadeInUp 1s ease forwards;
}

.hero-content p {
  font-size: 1.5rem;
  margin-bottom: 2.5rem;
  text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.2);
  animation: fadeInUp 1s ease 0.2s forwards;
  opacity: 0;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  animation: fadeInUp 1s ease 0.4s forwards;
  opacity: 0;
}

/* History Section */
.history-section {
  background-color: var(--color-white);
}

.timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}

.timeline::after {
  content: '';
  position: absolute;
  width: 6px;
  background-color: var(--color-black);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -3px;
}

.timeline-item {
  padding: 10px 40px;
  position: relative;
  width: 50%;
  margin-bottom: 3rem;
}

.timeline-item:nth-child(odd) {
  left: 0;
}

.timeline-item:nth-child(even) {
  left: 50%;
}

.timeline-item::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  right: -13px;
  background-color: var(--color-white);
  border: 4px solid var(--color-black);
  top: 15px;
  border-radius: 50%;
  z-index: 1;
}

.timeline-item:nth-child(even)::after {
  left: -13px;
}

.timeline-content {
  padding: 20px 30px;
  background-color: var(--color-white);
  position: relative;
  border: var(--border-regular);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-medium);
}

.timeline-content:hover {
  transform: translate(-5px, -5px);
  box-shadow: var(--shadow-lg);
}

.timeline-content h3 {
  margin-top: 0;
  color: var(--color-black);
  text-align: center;
}

.timeline-image {
  margin: 1rem 0;
  text-align: center;
  height: 200px;
  overflow: hidden;
}

.timeline-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: var(--border-thin);
}

/* Methodology Section */
.methodology-section {
  background-color: var(--color-gray-100);
}

.methodology-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.methodology-image {
  text-align: center;
}

.methodology-image img {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  border: var(--border-regular);
  box-shadow: var(--shadow-md);
}

.methodology-text {
  align-self: center;
}

.accordion {
  margin-top: 2rem;
}

.accordion-item {
  margin-bottom: 1rem;
  border: var(--border-thin);
}

.accordion-header {
  background-color: var(--color-white);
  padding: 1rem;
  cursor: pointer;
  font-family: var(--font-heading);
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.accordion-header::after {
  content: '+';
  font-size: 1.5rem;
  transition: transform var(--transition-fast);
}

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

.accordion-content {
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-medium), padding var(--transition-medium);
}

.accordion-item.active .accordion-content {
  padding: 1rem;
  max-height: 500px;
}

/* Portfolio Section */
.portfolio-section {
  background-color: var(--color-white);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.portfolio-item {
  transition: all var(--transition-medium);
}

.portfolio-item:hover {
  transform: translateY(-10px);
}

.card {
  border: var(--border-regular);
  background-color: var(--color-white);
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-medium);
}

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

.card-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

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

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

.card-content h3 {
  margin-top: 0;
  font-size: 1.3rem;
}

.toggle-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.toggle {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 30px;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-gray-300);
  transition: all var(--transition-fast);
}

.slider:before {
  position: absolute;
  content: "";
  height: 22px;
  width: 22px;
  left: 4px;
  bottom: 4px;
  background-color: var(--color-white);
  transition: all var(--transition-fast);
}

input:checked + .slider {
  background-color: var(--color-black);
}

input:checked + .slider:before {
  transform: translateX(30px);
}

/* Webinars Section */
.webinars-section {
  background-color: var(--color-gray-100);
}

.webinars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.webinar-item {
  transition: all var(--transition-medium);
}

.webinar-item:hover {
  transform: translateY(-10px);
}

.webinar-details {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--color-gray-600);
}

.webinar-details span {
  font-family: var(--font-heading);
  font-weight: 500;
}

.webinar-details .btn {
  margin-top: 1rem;
  align-self: flex-start;
}

/* Resources Section */
.resources-section {
  background-color: var(--color-white);
}

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

.resource-item {
  transition: all var(--transition-medium);
}

.resource-item:hover {
  transform: translateY(-10px);
}

.resource-link {
  display: inline-block;
  margin-top: 1rem;
  color: var(--color-black);
  font-weight: 600;
  text-decoration: underline;
  transition: all var(--transition-fast);
}

.resource-link:hover {
  color: var(--color-gray-600);
  transform: translateX(5px);
}

/* Behind the Scenes Section */
.behind-scenes-section {
  background-color: var(--color-gray-100);
}

.behind-scenes-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.behind-scenes-image img {
  width: 100%;
  border: var(--border-regular);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-medium);
}

.behind-scenes-image img:hover {
  transform: translate(-5px, -5px);
  box-shadow: var(--shadow-lg);
}

/* Clientele Section */
.clientele-section {
  background-color: var(--color-white);
}

.clientele-testimonials {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
}

.testimonial {
  transition: all var(--transition-medium);
}

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

.testimonial-content {
  border: var(--border-regular);
  padding: 2rem;
  background-color: var(--color-white);
  box-shadow: var(--shadow-md);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.testimonial-image {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 1.5rem;
  border: var(--border-thin);
}

.testimonial-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.testimonial-text {
  text-align: center;
}

.testimonial-author {
  margin-top: 1.5rem;
}

.testimonial-author h4 {
  margin-bottom: 0.25rem;
}

.testimonial-author span {
  font-size: 0.9rem;
  color: var(--color-gray-600);
}

/* Contact Section */
.contact-section {
  background-color: var(--color-gray-100);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info h3 {
  margin-top: 0;
}

.contact-details {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.contact-item h4 {
  margin-bottom: 0.5rem;
}

.contact-form-container {
  background-color: var(--color-white);
  padding: 2rem;
  border: var(--border-regular);
  box-shadow: var(--shadow-md);
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

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

.full-width {
  grid-column: span 2;
}

/* Footer */
.footer {
  background-color: var(--color-black);
  color: var(--color-white);
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo a {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
}

.footer-logo span {
  color: var(--color-gray-300);
}

.footer-logo p {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--color-gray-400);
}

.footer h3 {
  color: var(--color-white);
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  position: relative;
}

.footer h3::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 40px;
  height: 3px;
  background-color: var(--color-white);
}

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

.footer-links a {
  color: var(--color-gray-300);
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-white);
  transform: translateX(5px);
}

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

.footer-social a {
  color: var(--color-gray-300);
  transition: all var(--transition-fast);
  display: inline-block;
}

.footer-social a:hover {
  color: var(--color-white);
  transform: translateX(5px);
}

.footer-newsletter p {
  color: var(--color-gray-400);
  margin-bottom: 1.5rem;
}

.newsletter-form {
  display: flex;
  gap: 0.5rem;
}

.newsletter-form input {
  flex-grow: 1;
  padding: 0.75rem;
  border: 1px solid var(--color-gray-700);
  background-color: var(--color-gray-800);
  color: var(--color-white);
}

.newsletter-form input::placeholder {
  color: var(--color-gray-500);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--color-gray-800);
  font-size: 0.9rem;
  color: var(--color-gray-500);
}

/* Cookie Consent */
.cookie-consent {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  color: var(--color-white);
  z-index: 9999;
  padding: 1rem;
}

.cookie-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.cookie-content p {
  margin: 0;
  padding-right: 2rem;
}

.btn-cookie {
  background-color: var(--color-white);
  color: var(--color-black);
  border: none;
  padding: 0.5rem 1.5rem;
  cursor: pointer;
  font-weight: 600;
  font-family: var(--font-heading);
  text-transform: uppercase;
  transition: all var(--transition-fast);
}

.btn-cookie:hover {
  background-color: var(--color-gray-200);
}

/* Success Page */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}

.success-content {
  max-width: 600px;
  padding: 3rem;
  background-color: var(--color-white);
  border: var(--border-thick);
  box-shadow: var(--shadow-lg);
  animation: bounceIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

.success-content h1 {
  margin-bottom: 1.5rem;
}

.success-content p {
  margin-bottom: 2rem;
}

/* About, Privacy, Terms Pages */
.page-content {
  padding-top: 120px;
  padding-bottom: 4rem;
  max-width: 800px;
  margin: 0 auto;
}

.page-content h1 {
  margin-bottom: 2rem;
}

.page-content h2 {
  margin-top: 3rem;
  margin-bottom: 1.5rem;
}

.page-content p {
  margin-bottom: 1.5rem;
}

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

@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.8);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

/* Media Queries */
@media (max-width: 1024px) {
  h1 {
    font-size: 3rem;
  }
  
  h2 {
    font-size: 2.2rem;
  }
  
  .hero-content h1 {
    font-size: 3.5rem;
  }
  
  .methodology-content,
  .behind-scenes-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .methodology-image,
  .behind-scenes-image {
    order: -1;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    border-top: 1px solid var(--color-gray-200);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
  }
  
  .main-nav.active {
    display: block;
  }
  
  .main-nav ul {
    flex-direction: column;
    padding: 1rem 0;
  }
  
  .main-nav ul li {
    margin: 0;
    padding: 0.75rem 2rem;
    border-bottom: 1px solid var(--color-gray-200);
  }
  
  .main-nav ul li:last-child {
    border-bottom: none;
  }
  
  .hamburger-menu {
    display: flex;
  }
  
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .hero-content h1 {
    font-size: 3rem;
  }
  
  .hero-content p {
    font-size: 1.2rem;
  }
  
  .timeline::after {
    left: 31px;
  }
  
  .timeline-item {
    width: 100%;
    padding-left: 70px;
    padding-right: 25px;
  }
  
  .timeline-item:nth-child(even) {
    left: 0;
  }
  
  .timeline-item::after {
    left: 18px;
    right: auto;
  }
  
  .contact-form {
    grid-template-columns: 1fr;
  }
  
  .full-width {
    grid-column: auto;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .newsletter-form {
    flex-direction: column;
  }
  
  .cookie-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .cookie-content p {
    padding-right: 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.8rem;
  }
  
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .hero-content p {
    font-size: 1.1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: 1rem;
  }
  
  .hero-buttons .btn {
    width: 100%;
  }
  
  section {
    padding: 3rem 0;
  }
}