:root {
  --background-primary: #000000;
  --background-secondary: #0a0a0a;
  --background-tertiary: #1a1a1a;
  
  --orange-primary: #ff6b35;
  --orange-light: #ff8c5a;
  --orange-dark: #e55a2b;
  --orange-gradient: linear-gradient(135deg, #ff6b35 0%, #e55a2b 100%);
  
  --text-primary: #ffffff;
  --text-secondary: #e0e0e0;
  --text-tertiary: #a0a0a0;
  --text-disabled: #666666;
  
  --success-green: #00ff88;
  --warning-yellow: #ffcf35;
  --error-red: #ff3535;
  
  --border-primary: #333333;
  --border-secondary: #222222;
  --shadow-color: rgba(255, 107, 53, 0.3);
  
  --font-primary: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Roboto', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Roboto', sans-serif;
  
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-xxl: 64px;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  
  --transition-default: all 0.2s ease;
  --transition-slow: all 0.3s ease;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  background-color: var(--background-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

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

.text-display-large {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  text-transform: uppercase;
}

.text-display-medium {
  font-family: var(--font-display);
  font-size: 28px;
  line-height: 32px;
  font-weight: 700;
  letter-spacing: -0.25px;
  color: var(--text-primary);
  text-transform: uppercase;
}

.text-display-small {
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 28px;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
}

.text-headline-large {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 26px;
  font-weight: 600;
  color: var(--text-primary);
}

.text-headline-medium {
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 22px;
  font-weight: 600;
  color: var(--text-primary);
}

.text-body-large {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 24px;
  font-weight: 400;
  color: var(--text-secondary);
}

.text-body-medium {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 20px;
  font-weight: 400;
  color: var(--text-secondary);
}

.text-body-small {
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 16px;
  font-weight: 400;
  color: var(--text-tertiary);
}

.text-label-large {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 20px;
  font-weight: 500;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.text-label-medium {
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 16px;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.button-primary {
  background: var(--orange-gradient);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  height: 56px;
  padding: 0 32px;
  border-radius: 8px;
  border: none;
  box-shadow: 0 4px 12px var(--shadow-color);
  transition: var(--transition-default);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.button-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px var(--shadow-color);
}

.button-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px var(--shadow-color);
}

.button-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 2px solid var(--border-primary);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  text-transform: uppercase;
  height: 48px;
  padding: 0 24px;
  border-radius: 8px;
  transition: var(--transition-default);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.button-secondary:hover {
  border-color: var(--orange-primary);
  color: var(--orange-primary);
}

header {
  padding: var(--spacing-lg) 0;
  border-bottom: 1px solid var(--border-secondary);
  background: var(--background-primary);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  text-decoration: none;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: -0.5px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: var(--spacing-lg);
}

nav a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-default);
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
}

nav a:hover {
  color: var(--orange-primary);
}

main {
  margin-top: 88px;
}

.hero {
  padding: var(--spacing-xxl) 0;
  min-height: calc(100vh - 88px);
  display: flex;
  align-items: center;
  background: radial-gradient(circle at center, rgba(255, 107, 53, 0.1) 0%, transparent 60%);
}

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

.hero h1 {
  margin-bottom: var(--spacing-md);
}

.hero p {
  margin-bottom: var(--spacing-xl);
}

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

section {
  padding: var(--spacing-xxl) 0;
}

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

.feature-card {
  background: var(--background-secondary);
  border: 2px solid var(--border-secondary);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  transition: var(--transition-default);
}

.feature-card:hover {
  border-color: var(--orange-primary);
  background: rgba(255, 107, 53, 0.05);
  transform: translateY(-2px);
}

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

.app-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
  margin: var(--spacing-xxl) 0;
}

.app-info h2 {
  margin-bottom: var(--spacing-lg);
}

.app-info p {
  margin-bottom: var(--spacing-md);
}

.app-screenshots {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

.screenshot {
  width: 300px;
  height: 600px;
  background: var(--background-secondary);
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-secondary);
  overflow: hidden;
  position: relative;
}

.screenshot::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(255, 107, 53, 0.1) 100%);
}

.cta-section {
  text-align: center;
  padding: var(--spacing-xxl) 0;
  background: radial-gradient(circle at center, rgba(255, 107, 53, 0.15) 0%, transparent 70%);
}

.cta-section h2 {
  margin-bottom: var(--spacing-lg);
}

footer {
  padding: var(--spacing-xl) 0;
  border-top: 1px solid var(--border-secondary);
  background: var(--background-secondary);
}

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

.footer-section h3 {
  margin-bottom: var(--spacing-md);
  color: var(--orange-primary);
  font-size: 1rem;
  text-transform: uppercase;
}

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

.footer-section a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-default);
  display: block;
  padding: var(--spacing-xs) 0;
}

.footer-section a:hover {
  color: var(--orange-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-secondary);
  color: var(--text-tertiary);
}

.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.value-card {
  text-align: center;
  padding: var(--spacing-lg);
}

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

.contact-form {
  max-width: 600px;
  margin: var(--spacing-xl) auto;
}

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

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm);
  background: var(--background-secondary);
  border: 2px solid var(--border-secondary);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  transition: var(--transition-default);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--orange-primary);
  box-shadow: 0 0 0 2px rgba(255, 107, 53, 0.2);
}

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

.privacy-content {
  max-width: 800px;
  margin: 0 auto;
}

.privacy-content h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.privacy-content p {
  margin-bottom: var(--spacing-md);
}

.loading-pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.fade-in {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  nav {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  nav ul {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
  }
  
  .hero {
    padding: var(--spacing-xl) 0;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-cta .button-primary,
  .hero-cta .button-secondary {
    width: 100%;
    max-width: 300px;
  }
  
  section {
    padding: var(--spacing-xl) 0;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .app-showcase {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .app-screenshots {
    margin-top: var(--spacing-xl);
  }
  
  .about-values {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

.icon-checkmark::before { content: "✓"; }
.icon-star::before { content: "⭐"; }
.icon-fire::before { content: "🔥"; }
.icon-target::before { content: "🎯"; }
.icon-trophy::before { content: "🏆"; }