:root {
  --surface-0: #05070C;
  --surface-1: #0A0D12;
  --surface-2: #0F131C;
  --surface-3: #161D2B;
  --surface-4: #1E2636;
  --surface-5: #2A3544;
  
  --accent-orange: #C94819;
  --accent-orange-light: #FF6B35;
  --accent-sky: #38BDF8;
  --accent-sky-light: #7DD3FC;
  
  --text-primary: #F9FAFB;
  --text-secondary: #D1D5DB;
  --text-muted: #9CA3AF;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 999px;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5), 0 4px 6px -4px rgb(0 0 0 / 0.4);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.6), 0 8px 10px -6px rgb(0 0 0 / 0.5);
  
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  
  --font-display: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--surface-0);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: clamp(15px, 3.5vw, 17px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(5, 7, 12, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--surface-3);
  height: 56px;
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.header-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
}

.header-title {
  font-size: clamp(15px, 3.8vw, 18px);
  font-weight: 600;
  letter-spacing: -0.01em;
  display: none;
}

.header-nav {
  display: none;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
  padding: var(--spacing-xs) var(--spacing-sm);
}

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

.nav-cta {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--accent-orange);
  padding: var(--spacing-xs) var(--spacing-lg);
  border-radius: var(--radius-full);
  transition: all 0.2s ease;
}

.nav-cta:hover {
  background: var(--accent-orange-light);
  box-shadow: 0 0 20px rgba(255, 107, 53, 0.4);
}

.nav-cta:active {
  transform: scale(0.98);
}

.header-cta-mobile {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--text-primary);
  background: var(--accent-orange);
  border-radius: 50%;
  transition: all 0.2s ease;
}

.header-cta-mobile:active {
  transform: scale(0.95);
  background: var(--accent-orange-light);
}

main {
  padding-top: 56px;
}

.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding: var(--spacing-2xl) var(--spacing-md);
  background: linear-gradient(135deg, var(--surface-1) 0%, var(--surface-2) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-container {
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--spacing-lg);
}

.hero-icon {
  width: 96px;
  height: 96px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 8vw, 48px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  max-width: 700px;
}

.hero-subtitle {
  font-size: clamp(16px, 4vw, 20px);
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 600px;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  width: 100%;
  max-width: 400px;
  margin-top: var(--spacing-md);
}

.download-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: all 0.3s ease;
  min-height: 56px;
  position: relative;
}

.download-btn-google {
  background: linear-gradient(135deg, var(--accent-orange) 0%, #A93C10 100%);
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
}

.download-btn-google:hover {
  box-shadow: 0 0 30px rgba(255, 107, 53, 0.5), var(--shadow-lg);
  transform: translateY(-2px);
}

.download-btn-google:active {
  transform: translateY(0);
}

.download-btn-apple {
  background: #2A2A2A;
  color: var(--text-primary);
  opacity: 0.55;
  filter: grayscale(0.6);
  cursor: not-allowed;
  box-shadow: var(--shadow-sm);
}

.download-btn-apple::after {
  content: 'Coming Soon';
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--accent-sky);
  color: var(--surface-0);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
  box-shadow: var(--shadow-md);
}

.store-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.store-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

.store-label {
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.85;
}

.store-name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.coming-soon-badge {
  color: var(--accent-sky);
}

.hero-visual {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-banner {
  width: 100%;
  max-width: 600px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.features {
  padding: var(--spacing-3xl) var(--spacing-md);
  background: var(--surface-1);
}

.features-container {
  max-width: 1280px;
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 7vw, 40px);
  font-weight: 800;
  letter-spacing: -0.03em;
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  color: var(--text-primary);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.feature-card {
  background: var(--surface-2);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--surface-3);
  transition: all 0.3s ease;
}

.feature-card:hover {
  background: var(--surface-3);
  border-color: var(--surface-4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-card:active {
  transform: translateY(-2px);
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-orange) 0%, #A93C10 100%);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-md);
}

.feature-title {
  font-size: clamp(18px, 4.5vw, 22px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.feature-description {
  font-size: clamp(14px, 3.5vw, 16px);
  line-height: 1.65;
  color: var(--text-secondary);
}

.download-cta {
  padding: var(--spacing-3xl) var(--spacing-md);
  background: linear-gradient(135deg, var(--surface-2) 0%, var(--surface-1) 100%);
  position: relative;
  overflow: hidden;
}

.download-cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.download-container {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.download-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 8vw, 56px);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-sky-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.download-subtitle {
  font-size: clamp(16px, 4vw, 20px);
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-2xl);
}

.download-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  max-width: 480px;
  margin: 0 auto;
}

.download-btn-large {
  padding: var(--spacing-lg) var(--spacing-xl);
  min-height: 68px;
}

.download-btn-large .store-icon {
  width: 32px;
  height: 32px;
}

.download-btn-large .store-name {
  font-size: 20px;
}

.floating-cta {
  display: block;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-md);
  background: linear-gradient(to top, rgba(5, 7, 12, 0.98) 0%, rgba(5, 7, 12, 0.85) 100%);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--surface-3);
  z-index: 90;
}

.floating-btn {
  display: block;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-xl);
  background: linear-gradient(135deg, var(--accent-orange) 0%, #A93C10 100%);
  color: var(--text-primary);
  font-size: 17px;
  font-weight: 700;
  text-align: center;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.floating-btn:active {
  transform: scale(0.98);
  box-shadow: var(--shadow-md);
}

.about {
  padding: var(--spacing-3xl) var(--spacing-md);
  background: var(--surface-0);
}

.about-container {
  max-width: 800px;
  margin: 0 auto;
}

.about-text {
  font-size: clamp(15px, 3.8vw, 17px);
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

.about-contact {
  font-size: clamp(15px, 3.8vw, 17px);
  color: var(--text-muted);
}

.contact-link {
  color: var(--accent-sky);
  text-decoration: underline;
  transition: color 0.2s ease;
}

.contact-link:hover,
.contact-link:active {
  color: var(--accent-sky-light);
}

.footer {
  background: var(--surface-1);
  padding: var(--spacing-2xl) var(--spacing-md);
  border-top: 1px solid var(--surface-3);
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
  text-align: center;
}

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

.footer-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
}

.footer-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-link {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.footer-link:hover,
.footer-link:active {
  color: var(--text-secondary);
}

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

.footer-copyright {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: var(--spacing-md);
}

@media (min-width: 480px) {
  .header-title {
    display: block;
  }
  
  .hero-cta {
    flex-direction: row;
    max-width: none;
  }
  
  .download-btn {
    flex: 1;
  }
  
  .download-buttons {
    flex-direction: row;
    max-width: none;
  }
  
  .download-btn-large {
    flex: 1;
  }
}

@media (min-width: 768px) {
  .header {
    height: 72px;
  }
  
  .header-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
  }
  
  .header-cta-mobile {
    display: none;
  }
  
  main {
    padding-top: 72px;
  }
  
  .hero {
    padding: var(--spacing-3xl) var(--spacing-lg);
  }
  
  .hero-container {
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-3xl);
  }
  
  .hero-content {
    flex: 1;
    align-items: flex-start;
    text-align: left;
  }
  
  .hero-visual {
    flex: 1;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
  }
  
  .floating-cta {
    display: none;
  }
  
  .footer-container {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
  
  .footer-brand {
    flex-direction: row;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .hero-icon {
    width: 120px;
    height: 120px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}