@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

:root {
  --color-primary: #6366f1;
  --color-secondary: #0f172a;
  --color-accent: #22d3ee;
  --color-text: #f3f4f6;
  --color-text-muted: #9ca3af;
  --color-bg: #0f172a;
  --color-bg-alt: #1e293b;
  --color-glass: rgba(15, 23, 42, 0.7);
  --color-glass-border: rgba(255, 255, 255, 0.1);
  --color-neon-indigo: #6366f1;
  --color-neon-cyan: #22d3ee;

  --font-family: 'Space Grotesk', sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;

  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.5);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.6);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.7);
  --shadow-neon: 0 0 15px rgba(99, 102, 241, 0.5);

  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: #ffffff;
}

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  min-height: 44px;
  min-width: 44px;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-neon);
}

.btn-primary:hover {
  background-color: #4f46e5;
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(99, 102, 241, 0.8);
}

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

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

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-secondary);
}

.btn-accent:hover {
  background-color: #06b6d4;
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.6);
}

.card {
  background: var(--color-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--color-accent);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.2);
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-glass-border);
  padding: var(--space-sm) 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.5px;
}

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

.nav-links {
  display: flex;
  gap: var(--space-lg);
}

.nav-link {
  font-weight: 500;
  position: relative;
}

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

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 1.5rem;
  cursor: pointer;
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.4);
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  margin-bottom: var(--space-md);
  background: linear-gradient(to right, #ffffff, var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section {
  padding: var(--space-2xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-title h2 {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
}

.section-title .divider {
  width: 80px;
  height: 4px;
  background: var(--color-accent);
  margin: 0 auto;
}

.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.footer {
  background-color: #020617;
  padding: var(--space-2xl) 0 var(--space-lg);
  border-top: 1px solid var(--color-glass-border);
}

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

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  display: block;
}

.footer-info p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.footer-links h4 {
  margin-bottom: var(--space-md);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  color: var(--color-text-muted);
}

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

.footer-legal {
  border-top: 1px solid var(--color-glass-border);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.footer-legal-links {
  display: flex;
  gap: var(--space-md);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: #ffffff;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-md);
  color: #ffffff;
  font-family: inherit;
  transition: border-color var(--transition-base);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.1);
}

.error-message {
  color: #ef4444;
  font-size: 0.875rem;
  margin-top: 0.25rem;
  display: none;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: #1e293b;
  border-top: 1px solid var(--color-accent);
  padding: var(--space-md) 0;
  z-index: 2000;
  transform: translateY(100%);
  transition: transform var(--transition-slow);
}

.cookie-banner.active {
  transform: translateY(0);
}

.cookie-banner .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-lg);
}

.cookie-content {
  flex: 1;
}

.cookie-actions {
  display: flex;
  gap: var(--space-sm);
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-slow);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1024px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 70px;
    right: -100%;
    width: 280px;
    height: calc(100vh - 70px);
    background: #0f172a;
    flex-direction: column;
    padding: var(--space-xl) var(--space-lg);
    transition: right var(--transition-base);
    box-shadow: -10px 0 30px rgba(0,0,0,0.5);
  }

  .nav-links.active {
    right: 0;
  }

  .nav-mobile-toggle {
    display: block;
  }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  
  .hero h1 { font-size: 2.5rem; }
  
  .cookie-banner .container {
    flex-direction: column;
    text-align: center;
  }
}

.glass-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.neon-border {
  position: relative;
}

.neon-border::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  bottom: -1px;
  background: linear-gradient(45deg, var(--color-primary), var(--color-accent));
  z-index: -1;
  border-radius: inherit;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.neon-border:hover::before {
  opacity: 1;
}

.faq-item {
  border-bottom: 1px solid var(--color-glass-border);
  padding: var(--space-md) 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.125rem;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-icon {
  transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.testimonial-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.testimonial-content {
  font-style: italic;
  margin-bottom: var(--space-md);
  position: relative;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.testimonial-info h5 {
  margin-bottom: 2px;
}

.testimonial-info p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.team-card img {
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

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

.timeline::after {
  content: '';
  position: absolute;
  width: 2px;
  background: var(--color-glass-border);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -1px;
}

.timeline-item {
  padding: 10px 40px;
  position: relative;
  background-color: inherit;
  width: 50%;
}

.timeline-item::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  right: -10px;
  background-color: var(--color-accent);
  border: 4px solid var(--color-bg);
  top: 15px;
  border-radius: 50%;
  z-index: 1;
}

.left { left: 0; }
.right { left: 50%; }

.right::after { left: -10px; }

@media screen and (max-width: 600px) {
  .timeline::after { left: 31px; }
  .timeline-item { width: 100%; padding-left: 70px; padding-right: 25px; }
  .timeline-item::after { left: 21px; }
  .right { left: 0%; }
}

.lang-ru {
  font-family: inherit;
}