/* Apple/Tesla-inspired CSS for VortexGuru */

:root {
  /* Apple-inspired color palette */
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f7;
  --bg-glass: rgba(0, 0, 0, 0.05);
  --bg-glass-hover: rgba(0, 0, 0, 0.08);
  
  /* Apple-style gradients */
  --gradient-primary: linear-gradient(135deg, #007aff 0%, #5856d6 100%);
  --gradient-secondary: linear-gradient(135deg, #34c759 0%, #30d158 100%);
  --gradient-accent: linear-gradient(135deg, #007aff 0%, #5ac8fa 100%);
  --gradient-hero: radial-gradient(circle at 20% 20%, rgba(0, 122, 255, 0.08) 0%, transparent 50%),
                   radial-gradient(circle at 80% 80%, rgba(88, 86, 214, 0.08) 0%, transparent 50%),
                   radial-gradient(circle at 40% 40%, rgba(90, 200, 250, 0.06) 0%, transparent 50%);
  
  /* Typography */
  --font-primary: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Apple Colors */
  --text-primary: #1d1d1f;
  --text-secondary: rgba(29, 29, 31, 0.7);
  --text-tertiary: rgba(29, 29, 31, 0.5);
  --accent-primary: #007aff;
  --accent-secondary: #5856d6;
  --accent-tertiary: #5ac8fa;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(0, 122, 255, 0.2);
}

/* Reset and base styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: var(--gradient-hero);
  background-attachment: fixed;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.7;
}

/* Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(20px);
  background: rgba(255, 255, 255, 0.8);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  position: relative;
  overflow: hidden;
}

.logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.main-nav {
  display: flex;
  gap: var(--spacing-lg);
}

.main-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.3s ease;
  position: relative;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--accent-primary);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.main-nav a:hover::after,
.main-nav a.active::after {
  transform: scaleX(1);
}

.cta-group {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn.large {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 1rem;
}

.btn.primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-lg);
}

.btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.btn.secondary {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
}

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

.btn-icon {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
}

.btn:hover .btn-icon {
  transform: translateX(4px);
}

/* Mobile navigation */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: all 0.3s ease;
}

.mobile-nav {
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  padding: var(--spacing-lg);
  display: none;
  flex-direction: column;
  gap: var(--spacing-md);
  z-index: 999;
}

.mobile-nav.open {
  display: flex;
}

/* Main content */
main {
  padding-top: 80px;
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  margin-bottom: var(--spacing-md);
}

.section-description {
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.2rem;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.6;
  animation: float 6s ease-in-out infinite;
}

.orb-1 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0, 122, 255, 0.1) 0%, transparent 70%);
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(88, 86, 214, 0.08) 0%, transparent 70%);
  top: 60%;
  right: 20%;
  animation-delay: 2s;
}

.orb-3 {
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(90, 200, 250, 0.1) 0%, transparent 70%);
  bottom: 20%;
  left: 50%;
  animation-delay: 4s;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.hero-content {
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--bg-glass);
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  backdrop-filter: blur(10px);
}

.sparkle {
  font-size: 1.2rem;
}

.hero-title {
  margin-bottom: var(--spacing-lg);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.hero-title-subtle {
  color: var(--text-secondary);
  font-weight: 400;
}

.hero-description {
  font-size: 1.3rem;
  margin-bottom: var(--spacing-xl);
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2;
}

.device-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  background: var(--bg-glass);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-xl);
}

.device-frame {
  position: relative;
  aspect-ratio: 16/9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(0, 0, 0, 0.9);
  border: 1px solid rgba(0, 0, 0, 0.2);
}

.device-screen {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.volumetric-avatar {
  position: relative;
  width: 200px;
  height: 200px;
}

.avatar-core {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--gradient-primary);
  opacity: 0.8;
  animation: pulse 3s ease-in-out infinite;
}

.avatar-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.3);
  animation: rotate 10s linear infinite;
}

.ring-1 {
  inset: -20px;
  animation-duration: 8s;
}

.ring-2 {
  inset: -40px;
  animation-duration: 12s;
  animation-direction: reverse;
}

.ring-3 {
  inset: -60px;
  animation-duration: 15s;
}

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg-primary);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.play-button:hover {
  transform: translate(-50%, -50%) scale(1.1);
}

.play-button svg {
  width: 24px;
  height: 24px;
  margin-left: 2px;
}

.device-info h3 {
  margin-bottom: var(--spacing-md);
}

.device-info p {
  margin-bottom: var(--spacing-lg);
}

.feature-badges {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.badge {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--bg-glass);
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--text-secondary);
  backdrop-filter: blur(10px);
}

/* Experience Section */
.experience {
  padding: var(--spacing-3xl) 0;
}

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

.experience-card {
  background: var(--bg-glass);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  backdrop-filter: blur(20px);
  transition: all 0.3s ease;
}

.experience-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 122, 255, 0.3);
  box-shadow: var(--shadow-xl);
}

.card-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.card-icon svg {
  width: 28px;
  height: 28px;
  color: white;
}

.experience-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.experience-card p {
  color: var(--text-secondary);
}

/* How It Works Section */
.how-it-works {
  padding: var(--spacing-3xl) 0;
  background: var(--bg-secondary);
}

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

.step-card {
  background: var(--bg-glass);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  backdrop-filter: blur(20px);
  transition: all 0.3s ease;
  position: relative;
}

.step-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 122, 255, 0.3);
}

.step-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.step-icon svg {
  width: 28px;
  height: 28px;
  color: white;
}

.step-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.step-card p {
  color: var(--text-secondary);
}

/* Use Cases Section */
.use-cases {
  padding: var(--spacing-3xl) 0;
}

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

.use-case-card {
  background: var(--bg-glass);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  backdrop-filter: blur(20px);
  transition: all 0.3s ease;
}

.use-case-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 122, 255, 0.3);
}

.use-case-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-secondary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.use-case-icon svg {
  width: 24px;
  height: 24px;
  color: white;
}

.use-case-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.use-case-card p {
  color: var(--text-secondary);
}

/* Technology Section */
.technology {
  padding: var(--spacing-3xl) 0;
  background: var(--bg-secondary);
}

.tech-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.tech-text .section-title {
  text-align: left;
  margin-bottom: var(--spacing-md);
}

.tech-text .section-description {
  margin-bottom: var(--spacing-xl);
}

.tech-highlights {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.tech-highlight {
  background: var(--bg-glass);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  backdrop-filter: blur(20px);
}

.tech-highlight h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.tech-highlight ul {
  list-style: none;
  padding: 0;
}

.tech-highlight li {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
  position: relative;
  padding-left: var(--spacing-md);
}

.tech-highlight li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent-primary);
}

.tech-privacy {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
  color: var(--text-tertiary);
  font-size: 0.9rem;
}

.tech-privacy svg {
  width: 16px;
  height: 16px;
}

.tech-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.pipeline-diagram {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-md);
  align-items: center;
}

.pipeline-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.step-circle {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
  text-align: center;
  color: white;
  box-shadow: var(--shadow-lg);
}

/* Creators CTA Section */
.creators-cta {
  padding: var(--spacing-3xl) 0;
  background: var(--bg-glass);
  border: 1px solid rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(20px);
}

.cta-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.cta-content h2 {
  margin-bottom: var(--spacing-md);
}

.cta-content p {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-xl);
}

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

/* Contact Section */
.contact {
  padding: var(--spacing-3xl) 0;
}

.contact-content {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.contact-content h2 {
  margin-bottom: var(--spacing-md);
}

.contact-content p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto;
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  display: grid;
  gap: var(--spacing-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-group label {
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
  padding: var(--spacing-md);
  background: var(--bg-glass);
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Footer */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  padding: var(--spacing-xl) 0;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.footer-brand .logo {
  margin-bottom: var(--spacing-xs);
}

.footer-brand p {
  color: var(--text-tertiary);
  font-size: 0.9rem;
}

.footer-nav {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.footer-nav a:hover {
  color: var(--text-primary);
}

.copyright {
  text-align: right;
  color: var(--text-tertiary);
  font-size: 0.85rem;
}

/* Animations */
@keyframes float {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

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

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

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    text-align: center;
  }
  
  .device-showcase {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .tech-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .pipeline-diagram {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .main-nav,
  .cta-group {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-actions .btn {
    width: 100%;
    max-width: 300px;
  }
  
  .experience-grid,
  .steps-grid,
  .use-cases-grid {
    grid-template-columns: 1fr;
  }
  
  .pipeline-diagram {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  .step-circle {
    width: 60px;
    height: 60px;
    font-size: 0.7rem;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-md);
  }
  
  .copyright {
    text-align: center;
  }
}

@media (max-width: 480px) {
  .section-container {
    padding: 0 var(--spacing-md);
  }
  
  .hero-container {
    padding: 0 var(--spacing-md);
  }
  
  .nav-container {
    padding: var(--spacing-md);
  }
  
  .device-showcase {
    padding: var(--spacing-lg);
  }
  
  .volumetric-avatar {
    width: 150px;
    height: 150px;
  }
  
  .play-button {
    width: 50px;
    height: 50px;
  }
  
  .play-button svg {
    width: 20px;
    height: 20px;
  }
}