/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-sticky);
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glass-border);
  transition: all var(--transition-base);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

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

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

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: var(--text-base);
  transition: color var(--transition-base);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--primary-400);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  width: 25px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-base);
}

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

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: var(--z-negative);
}

.gradient-mesh {
  position: absolute;
  inset: 0;
  background: var(--gradient-mesh);
  animation: gradient-shift 15s ease infinite;
  background-size: 200% 200%;
}

.grid-pattern {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(6, 182, 212, 0.05) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(6, 182, 212, 0.05) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.3;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto var(--spacing-3xl);
}

.hero-title {
  font-size: var(--text-5xl);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  max-width: 900px;
  margin: 0 auto;
}

.stat-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.stat-item:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-4px);
}

.stat-number {
  display: block;
  font-size: var(--text-4xl);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  display: block;
  font-size: var(--text-base);
  color: var(--text-secondary);
}

/* Sections */
section {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

section:first-of-type {
  padding-top: 30px;
}

/* About Section */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.about-text h3 {
  font-size: var(--text-3xl);
  margin-bottom: var(--spacing-md);
}

.about-text p {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.feature-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.feature-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.feature-text h4 {
  font-size: var(--text-lg);
  margin-bottom: 0.25rem;
}

.feature-text p {
  font-size: var(--text-base);
  color: var(--text-secondary);
  margin: 0;
}

/* Products */
.product-featured {
  margin-bottom: var(--spacing-3xl);
}

.product-card-large {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  padding: var(--spacing-2xl);
}

.product-image {
  position: relative;
}

.product-placeholder {
  aspect-ratio: 16/9;
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-icon {
  font-size: 6rem;
}

.product-title {
  font-size: var(--text-3xl);
  margin-bottom: var(--spacing-xs);
}

.product-subtitle {
  color: var(--text-secondary);
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-md);
}

.product-description {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-lg);
}

.product-features h4 {
  font-size: var(--text-xl);
  margin-bottom: var(--spacing-md);
}

.product-features ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.product-features li {
  color: var(--text-secondary);
  line-height: 1.8;
  padding-left: 1.5rem;
  position: relative;
}

.product-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-400);
  font-weight: 700;
}

.product-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.product-tech {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--glass-border);
}

.product-tech h4 {
  font-size: var(--text-xl);
  margin-bottom: var(--spacing-md);
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.tech-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  opacity: 1 !important;
  transition: all var(--transition-base);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.tech-tag:hover {
  background: rgba(6, 182, 212, 0.15);
  border-color: var(--primary-400);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3);
  color: var(--primary-300);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.product-card {
  position: relative;
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-lg);
}

.product-icon-large {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
}

.product-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--spacing-sm);
}

.product-card p {
  color: var(--text-secondary);
  margin: 0;
}

/* Tech Stack */
.tech-stack {
  position: relative;
}

.tech-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.tech-category {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  opacity: 1 !important;
  transition: all var(--transition-base);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.tech-category:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(6, 182, 212, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(6, 182, 212, 0.15);
}

.tech-category-title {
  font-size: var(--text-2xl);
  margin-bottom: var(--spacing-md);
  text-align: center;
  opacity: 1 !important;
}

.tech-items {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
}

/* Contact */
.contact-card {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-2xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.contact-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.contact-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.contact-details h4 {
  font-size: var(--text-lg);
  margin-bottom: 0.5rem;
}

.contact-details a {
  color: var(--primary-400);
  font-size: var(--text-base);
}

.contact-details p {
  color: var(--text-secondary);
  margin: 0;
}

.contact-message {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
}

.contact-message p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--glass-border);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-title {
  font-size: var(--text-2xl);
  margin-bottom: var(--spacing-sm);
}

.footer-subtitle {
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-md);
}

.footer-text {
  color: var(--text-secondary);
  line-height: 1.8;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links li {
  color: var(--text-secondary);
}

.footer-links a {
  color: var(--text-secondary);
  transition: color var(--transition-base);
}

.footer-links a:hover {
  color: var(--primary-400);
}

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

.build-version {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}

/* Mobile Navigation */
@media (max-width: 968px) {
  .nav {
    height: 70px;
  }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--spacing-2xl) 0;
    gap: 0;
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    border-right: 1px solid var(--glass-border);
    overflow-y: auto;
  }
  
  .nav-menu.active {
    transform: translateX(0);
  }
  
  .nav-menu li {
    width: 100%;
  }
  
  .nav-link {
    display: block;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--text-lg);
    border-bottom: 1px solid var(--glass-border);
  }
  
  .nav-link::after {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
    z-index: 1000;
  }
  
  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }
  
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }
}

/* Tablet & Mobile Responsive */
@media (max-width: 968px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  section {
    padding: var(--spacing-2xl) 0;
  }
  
  .about-content,
  .product-card-large {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .product-card-large {
    padding: var(--spacing-lg);
  }
  
  .product-image img {
    border-radius: var(--radius-md);
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .tech-categories {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .product-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-xs);
  }
}

@media (max-width: 640px) {
  .nav {
    height: 60px;
  }
  
  .nav-menu {
    top: 60px;
    height: calc(100vh - 60px);
    padding: var(--spacing-lg) 0;
  }
  
  .logo {
    font-size: var(--text-lg);
  }
  
  .nav-link {
    font-size: var(--text-base);
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .product-buttons {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .product-buttons .btn-primary,
  .product-buttons .btn-soft {
    width: 100%;
  }
  
  .about-features {
    gap: var(--spacing-sm);
  }
  
  .feature-icon {
    font-size: 1.5rem;
  }
  
  .product-features ul {
    gap: 0.5rem;
  }
  
  .product-features li {
    font-size: var(--text-sm);
  }
  
  .tech-tags {
    gap: 0.5rem;
  }
  
  .tech-tag {
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
  }
}