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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #1a1a2e;
  background: #f8f9fd;
  min-height: 100vh;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(236, 72, 153, 0.05) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  position: relative;
  z-index: 1;
}

.navbar {
  background: white;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 3px solid transparent;
  border-image: linear-gradient(90deg, #6366f1, #ec4899, #f59e0b);
  border-image-slice: 1;
}

.nav-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 26px;
  font-weight: 800;
  background: linear-gradient(135deg, #6366f1, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

.logo svg {
  width: 36px;
  height: 36px;
}

.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: #64748b;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.nav-links a:hover {
  background: #f1f5f9;
  color: #6366f1;
}

.nav-links a.active {
  background: linear-gradient(135deg, #6366f1, #ec4899);
  color: white;
}

.hero {
  position: relative;
  margin: 80px auto 120px;
  padding: 0;
  overflow: visible;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
}

.hero-text {
  position: relative;
  z-index: 2;
}

.hero-text::before {
  content: '';
  position: absolute;
  top: -40px;
  left: -40px;
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, #6366f1, #ec4899);
  opacity: 0.1;
  border-radius: 30px;
  transform: rotate(15deg);
}

.hero h1 {
  font-size: 64px;
  font-weight: 900;
  color: #0f172a;
  margin-bottom: 24px;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, #6366f1, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .subtitle {
  font-size: 22px;
  color: #64748b;
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero-visual {
  position: relative;
  height: 500px;
}

.floating-shape {
  position: absolute;
  border-radius: 30px;
  animation: float 6s ease-in-out infinite;
}

.shape-1 {
  width: 200px;
  height: 200px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  top: 0;
  right: 100px;
  animation-delay: 0s;
}

.shape-2 {
  width: 150px;
  height: 150px;
  background: linear-gradient(135deg, #ec4899, #f59e0b);
  bottom: 50px;
  right: 0;
  animation-delay: 2s;
}

.shape-3 {
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, #10b981, #06b6d4);
  top: 150px;
  left: 50px;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(10deg); }
}

.btn-primary {
  background: linear-gradient(135deg, #6366f1, #ec4899);
  color: white;
  border: none;
  padding: 18px 48px;
  font-size: 18px;
  font-weight: 700;
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #ec4899, #f59e0b);
  transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary:hover::before {
  left: 0;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(99, 102, 241, 0.4);
}

.btn-primary span {
  position: relative;
  z-index: 1;
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: transparent;
  color: #6366f1;
  border: 2px solid #6366f1;
  padding: 16px 46px;
  font-size: 18px;
  font-weight: 700;
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background: #6366f1;
  color: white;
  transform: translateY(-2px);
}

.section {
  margin: 100px auto;
  position: relative;
}

.diagonal-section {
  background: white;
  padding: 80px 60px;
  position: relative;
  overflow: hidden;
  transform: skewY(-2deg);
  margin: 120px -40px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.diagonal-section > * {
  transform: skewY(2deg);
}

.section-title {
  font-size: 48px;
  font-weight: 900;
  color: #0f172a;
  margin-bottom: 60px;
  position: relative;
  display: inline-block;
}

.section-title::before {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60%;
  height: 6px;
  background: linear-gradient(90deg, #6366f1, #ec4899, #f59e0b);
  border-radius: 3px;
}

.section-title .number {
  font-size: 24px;
  color: #6366f1;
  font-weight: 700;
  margin-right: 16px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  margin-top: 60px;
}

.feature-card {
  background: white;
  padding: 0;
  border-radius: 24px;
  overflow: hidden;
  border: 2px solid #f1f5f9;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #6366f1, #ec4899);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card:hover {
  transform: translateX(10px);
  border-color: #6366f1;
  box-shadow: 0 20px 60px rgba(99, 102, 241, 0.15);
}

.feature-content {
  padding: 40px;
  display: flex;
  gap: 30px;
  align-items: flex-start;
}

.feature-icon {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
  background: linear-gradient(135deg, #6366f1, #ec4899);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
}

.feature-icon svg {
  width: 100%;
  height: 100%;
  stroke: white;
}

.feature-text h3 {
  font-size: 24px;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 12px;
}

.feature-text p {
  color: #64748b;
  line-height: 1.8;
  font-size: 16px;
}

.platforms {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 60px;
}

.platform-card {
  background: white;
  border: 3px solid transparent;
  border-radius: 24px;
  padding: 40px 30px;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.platform-card::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(135deg, #6366f1, #ec4899, #f59e0b);
  border-radius: 24px;
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: -1;
}

.platform-card:hover::before {
  opacity: 1;
}

.platform-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 25px 60px rgba(99, 102, 241, 0.25);
}

.platform-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s ease;
}

.platform-card:hover .platform-icon {
  background: linear-gradient(135deg, #6366f1, #ec4899);
}

.platform-icon svg {
  width: 52px;
  height: 52px;
  transition: all 0.4s ease;
}

.platform-card:hover .platform-icon svg {
  filter: brightness(0) invert(1);
}

.platform-card h3 {
  font-size: 26px;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 8px;
}

.platform-card .version {
  color: #94a3b8;
  font-size: 14px;
  margin-bottom: 24px;
  font-weight: 600;
}

.platform-card button {
  width: 100%;
  padding: 14px;
  font-size: 16px;
}

.faq-container {
  max-width: 1000px;
  margin: 60px auto 0;
}

.faq-item {
  background: white;
  border-radius: 20px;
  margin-bottom: 20px;
  overflow: hidden;
  border-left: 5px solid #e2e8f0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.faq-item:hover {
  border-left-color: #6366f1;
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.15);
}

.faq-item.active {
  border-left-color: #ec4899;
  background: linear-gradient(135deg, #faf5ff 0%, #fdf2f8 100%);
}

.faq-question {
  padding: 28px 35px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  color: #0f172a;
  font-size: 19px;
  gap: 20px;
}

.faq-question:hover {
  color: #6366f1;
}

.faq-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  stroke: #6366f1;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  stroke: #ec4899;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0 35px;
  color: #64748b;
  line-height: 1.9;
}

.faq-item.active .faq-answer {
  max-height: 600px;
  padding: 0 35px 28px;
}

.testimonials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 60px;
}

.testimonial-card {
  background: white;
  padding: 40px;
  border-radius: 24px;
  position: relative;
  border: 2px solid #f1f5f9;
  transition: all 0.4s ease;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 20px;
  left: 30px;
  font-size: 80px;
  font-weight: 900;
  color: #6366f1;
  opacity: 0.1;
  line-height: 1;
}

.testimonial-card:hover {
  border-color: #6366f1;
  transform: translateY(-5px);
  box-shadow: 0 20px 50px rgba(99, 102, 241, 0.15);
}

.testimonial-card .quote {
  font-size: 17px;
  color: #475569;
  line-height: 1.9;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.testimonial-card .author {
  font-weight: 800;
  color: #0f172a;
  font-size: 18px;
}

.testimonial-card .role {
  color: #94a3b8;
  font-size: 14px;
  margin-top: 4px;
  font-weight: 600;
}

.cta-section {
  background: linear-gradient(135deg, #6366f1, #ec4899, #f59e0b);
  color: white;
  text-align: center;
  padding: 100px 60px;
  border-radius: 40px;
  margin: 120px auto;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  animation: float 8s ease-in-out infinite;
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  animation: float 10s ease-in-out infinite reverse;
}

.cta-section h2 {
  font-size: 48px;
  font-weight: 900;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.cta-section p {
  font-size: 22px;
  margin-bottom: 40px;
  opacity: 0.95;
  position: relative;
  z-index: 1;
}

.cta-section .btn-primary {
  background: white;
  color: #6366f1;
  position: relative;
  z-index: 1;
}

.cta-section .btn-primary::before {
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
}

.cta-section .btn-primary:hover {
  color: #ec4899;
}

.comparison-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 40px;
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.comparison-table th,
.comparison-table td {
  padding: 24px 28px;
  text-align: left;
  border-bottom: 1px solid #f1f5f9;
}

.comparison-table th {
  background: linear-gradient(135deg, #6366f1, #ec4899);
  color: white;
  font-weight: 800;
  font-size: 18px;
}

.comparison-table tbody tr {
  transition: all 0.3s ease;
}

.comparison-table tbody tr:hover {
  background: linear-gradient(135deg, #faf5ff, #fdf2f8);
  transform: scale(1.01);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table td:first-child {
  font-weight: 700;
  color: #0f172a;
}

.check-icon {
  color: #10b981;
  font-weight: bold;
  font-size: 20px;
}

.cross-icon {
  color: #ef4444;
  font-weight: bold;
  font-size: 20px;
}

.footer {
  background: white;
  margin-top: 120px;
  padding: 60px 0;
  text-align: center;
  border-top: 1px solid #f1f5f9;
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
}

.security-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, #ecfdf5, #d1fae5);
  color: #065f46;
  padding: 16px 32px;
  border-radius: 16px;
  margin-bottom: 24px;
  font-weight: 700;
  border: 2px solid #10b981;
}

.security-badge svg {
  width: 28px;
  height: 28px;
  stroke: #10b981;
}

.footer p {
  color: #64748b;
  line-height: 1.9;
  margin: 12px 0;
  font-size: 15px;
}

.download-hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 80px;
}

.download-info h1 {
  font-size: 56px;
  font-weight: 900;
  color: #0f172a;
  margin-bottom: 24px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.download-info p {
  font-size: 20px;
  color: #64748b;
  margin-bottom: 40px;
  line-height: 1.8;
}

.download-visual {
  position: relative;
  height: 450px;
}

.download-visual svg {
  width: 100%;
  height: 100%;
}

.content-section {
  margin-top: 60px;
}

.content-section h2 {
  font-size: 36px;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 24px;
  margin-top: 60px;
}

.content-section h3 {
  font-size: 26px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 16px;
  margin-top: 40px;
}

.content-section p {
  color: #64748b;
  line-height: 1.9;
  margin-bottom: 20px;
  font-size: 17px;
}

.content-section ul {
  margin-left: 30px;
  margin-bottom: 24px;
}

.content-section li {
  color: #64748b;
  line-height: 1.9;
  margin-bottom: 12px;
  font-size: 17px;
}

.highlight-box {
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  border-left: 6px solid #f59e0b;
  padding: 32px;
  border-radius: 20px;
  margin: 40px 0;
  box-shadow: 0 10px 30px rgba(245, 158, 11, 0.15);
}

.highlight-box h3 {
  color: #92400e;
  margin-top: 0;
  font-weight: 800;
}

.stagger-left {
  animation: slideInLeft 0.8s ease-out;
}

.stagger-right {
  animation: slideInRight 0.8s ease-out;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@media (max-width: 1024px) {
  .hero-content,
  .download-hero {
    grid-template-columns: 1fr;
    gap: 60px;
  }
  
  .hero-visual {
    height: 400px;
  }
  
  .platforms {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
  
  .nav-content {
    padding: 15px 20px;
  }
  
  .nav-links {
    gap: 5px;
  }
  
  .nav-links a {
    padding: 8px 12px;
    font-size: 14px;
  }
  
  .hero h1 {
    font-size: 40px;
  }
  
  .hero .subtitle {
    font-size: 18px;
  }
  
  .section-title {
    font-size: 36px;
  }
  
  .diagonal-section {
    padding: 60px 30px;
    margin: 80px -20px;
  }
  
  .download-info h1 {
    font-size: 40px;
  }
  
  .platforms,
  .testimonials {
    grid-template-columns: 1fr;
  }
  
  .feature-content {
    flex-direction: column;
    text-align: center;
  }
  
  .feature-icon {
    margin: 0 auto;
  }
}