/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #10b981;
  --accent: #f59e0b;
  --dark: #1e293b;
  --darker: #0f172a;
  --light: #f8fafc;
  --gray: #64748b;
  --gray-light: #cbd5e1;
  --gradient: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
  --gradient-2: linear-gradient(135deg, #10b981, #06b6d4);
}

body {
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  color: var(--dark);
  background: var(--light);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Buttons */
.btn-primary {
  background: var(--gradient);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.btn-primary.large {
  padding: 16px 32px;
  font-size: 1.1rem;
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

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

.btn-outline {
  background: transparent;
  color: var(--dark);
  border: 2px solid var(--gray-light);
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline.large {
  padding: 16px 32px;
  font-size: 1.1rem;
}

.btn-access {
  background: var(--primary);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 100%;
  margin-top: auto;
}

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

.btn-access.premium {
  background: var(--gradient-2);
}

/* Navigation */
.navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.5rem;
}

.logo-icon {
  font-size: 1.8rem;
}

.logo-text {
  color: var(--dark);
}

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

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-link {
  text-decoration: none;
  color: var(--dark);
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.mobile-menu-btn span {
  width: 25px;
  height: 3px;
  background: var(--dark);
  margin: 3px 0;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  position: relative;
  overflow: hidden;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  background: var(--gradient);
  color: white;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-block;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: var(--darker);
}

.hero-description {
  font-size: 1.2rem;
  color: var(--gray);
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  gap: 2rem;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--gray);
  font-weight: 500;
}

.hero-visual {
  position: relative;
}

.visual-container {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.hero-image {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.3s ease;
}

.visual-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient);
  opacity: 0.1;
  filter: blur(20px);
  z-index: -1;
}

/* Sections Common */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--darker);
}

.section-header p {
  font-size: 1.2rem;
  color: var(--gray);
  max-width: 600px;
  margin: 0 auto;
}

/* Features Section */
.features {
  padding: 80px 0;
  background: white;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: white;
  padding: 2.5rem;
  border-radius: 16px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--darker);
}

.feature-card p {
  color: var(--gray);
  line-height: 1.6;
}

/* About Section */
.about {
  padding: 80px 0;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

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

.about-features {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.about-feature {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.feature-number {
  background: var(--gradient);
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.feature-content h4 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--darker);
}

.feature-content p {
  color: var(--gray);
  line-height: 1.6;
}

.about-visual {
  position: relative;
}

.about-image {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.visual-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--gradient-2);
  color: white;
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
}

/* Access Section */
.access {
  padding: 80px 0;
  background: white;
}

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

.access-card {
  background: white;
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.access-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.access-card.premium {
  border: 2px solid var(--secondary);
  position: relative;
  overflow: hidden;
}

.access-card.premium::before {
  content: 'PREMIUM';
  position: absolute;
  top: 20px;
  right: -30px;
  background: var(--gradient-2);
  color: white;
  padding: 5px 40px;
  font-size: 0.8rem;
  font-weight: 700;
  transform: rotate(45deg);
}

.access-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.access-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--darker);
}

.access-card p {
  color: var(--gray);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.access-list {
  list-style: none;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.access-list li {
  padding: 0.5rem 0;
  color: var(--gray);
  position: relative;
  padding-left: 1.5rem;
}

.access-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--secondary);
  font-weight: bold;
}

/* Security Section */
.security {
  padding: 80px 0;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: white;
}

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

.security-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: white;
}

.security-content p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: #cbd5e1;
}

.security-features {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.security-feature {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.security-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.security-feature h4 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: white;
}

.security-feature p {
  font-size: 1rem;
  margin: 0;
  color: #94a3b8;
}

.security-visual {
  position: relative;
}

.security-image {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* FAQ Section */
.faq {
  padding: 80px 0;
  background: white;
}

.faq-grid {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--gray-light);
  border-radius: 12px;
  margin-bottom: 1rem;
  overflow: hidden;
}

.faq-question {
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  background: white;
  transition: background 0.3s ease;
}

.faq-question:hover {
  background: #f8fafc;
}

.faq-question h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--darker);
  margin: 0;
}

.faq-toggle {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--primary);
  transition: transform 0.3s ease;
}

.faq-answer {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-answer.active {
  padding: 0 1.5rem 1.5rem;
  max-height: 500px;
}

.faq-answer p {
  color: var(--gray);
  line-height: 1.6;
  margin: 0;
}

/* CTA Section */
.cta {
  padding: 80px 0;
  background: var(--gradient);
  color: white;
  text-align: center;
}

.cta-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: white;
}

.cta-content p {
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  opacity: 0.9;
}

.cta-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer */
.footer {
  background: var(--darker);
  color: white;
  padding: 60px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.footer-section p {
  color: #94a3b8;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.footer-section h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: white;
}

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

.footer-section li {
  margin-bottom: 0.8rem;
}

.footer-section a {
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #334155;
  color: #94a3b8;
  font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .mobile-menu-btn {
      display: flex;
  }
  
  .nav-menu {
      display: none;
  }
  
  .nav-actions {
      display: none;
  }
  
  .hero-container {
      grid-template-columns: 1fr;
      text-align: center;
  }
  
  .hero-title {
      font-size: 2.5rem;
  }
  
  .hero-stats {
      justify-content: center;
  }
  
  .about-grid,
  .security-grid {
      grid-template-columns: 1fr;
  }
  
  .footer-content {
      grid-template-columns: 1fr;
      gap: 2rem;
  }
  
  .cta-actions {
      flex-direction: column;
      align-items: center;
  }
  
  .btn-primary.large,
  .btn-outline.large {
      width: 100%;
      max-width: 300px;
  }
}

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

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}
/* Добавляем в существующий CSS */

/* SEO-оптимизированные стили для семантического ядра */
.hero-title {
  font-size: 3.2rem;
  line-height: 1.1;
}

.section-header h2 {
  font-size: 2.4rem;
  line-height: 1.2;
}

/* Улучшаем читаемость для SEO */
.feature-card h3,
.access-card h3,
.security-feature h4 {
  line-height: 1.3;
}

/* Оптимизация для ключевых слов */
.keyword-highlight {
  background: linear-gradient(120deg, #a78bfa00 0%, #a78bfa00 100%);
  background-repeat: no-repeat;
  background-size: 100% 0.2em;
  background-position: 0 88%;
  font-weight: 600;
}

/* Улучшаем структуру заголовков */
h1, h2, h3, h4 {
  margin-bottom: 1rem;
}

/* Оптимизация плотности ключевых слов */
.content-optimized {
  line-height: 1.7;
}

/* Скрываем текст для SEO (осторожно) */
.seo-text {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}