/* ==========================================================================
   SatQuery AI — Premium Dark Aerospace Theme & Scroll-Driven Animation Styles
   ========================================================================== */

:root {
  --bg-space: #030712;
  --bg-card: rgba(15, 23, 42, 0.7);
  --bg-glass: rgba(15, 23, 42, 0.5);
  --border-subtle: rgba(56, 189, 248, 0.15);
  --border-active: rgba(56, 189, 248, 0.45);
  --border-highlight: #38bdf8;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-cyan: #06b6d4;
  --accent-sky: #38bdf8;
  --accent-emerald: #10b981;
  --accent-glow: rgba(56, 189, 248, 0.25);
  
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Space Grotesk', var(--font-sans);
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-io: cubic-bezier(0.77, 0, 0.175, 1);

  --transition-smooth: transform 0.25s var(--ease-out), border-color 0.25s ease-out, box-shadow 0.25s ease-out, background-color 0.25s ease-out;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-space);
  color: var(--text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  overflow-x: hidden;
  width: 100%;
  line-height: 1.6;
  background-color: var(--bg-space);
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(3, 7, 18, 0.7);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition-smooth);
}

.nav-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0.85rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-mark {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-mark svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 8px rgba(56, 189, 248, 0.5));
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.1em;
  color: var(--text-primary);
}

.brand-ai {
  color: var(--accent-sky);
  margin-left: 2px;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.nav-link:hover {
  color: var(--text-primary);
  text-shadow: 0 0 10px rgba(56, 189, 248, 0.4);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-shrink: 0;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.1);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.status-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.btn-nav-cta {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(56, 189, 248, 0.25));
  color: var(--text-primary);
  text-decoration: none;
  padding: 0.45rem 1.15rem;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  border: 1px solid var(--border-active);
  transition: var(--transition-smooth);
  backdrop-filter: blur(8px);
}

.btn-nav-cta:hover {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-sky));
  color: #030712;
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.4);
  transform: translateY(-1px);
}

/* Demo ribbon: second header row with direct links to all five demo pages */
.demo-ribbon {
  border-top: 1px solid var(--border-subtle);
  background: rgba(2, 6, 16, 0.65);
}

.demo-ribbon-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0.45rem 2rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.demo-ribbon-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  margin-right: 0.4rem;
  white-space: nowrap;
}

.demo-ribbon-btn {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  white-space: nowrap;
  padding: 0.35rem 0.95rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  background: rgba(15, 23, 42, 0.7);
  transition: var(--transition-smooth);
}

.demo-ribbon-btn:hover {
  color: #fff;
  border-color: var(--accent-sky);
  background: rgba(56, 189, 248, 0.12);
}

.demo-ribbon-btn:active {
  transform: scale(0.96);
  transition-duration: 160ms;
}

.demo-ribbon-btn:focus-visible {
  outline: 2px solid var(--accent-sky);
  outline-offset: 2px;
}

/* ==========================================================================
   Hero Scroll Track & Sticky Viewport
   ========================================================================== */
.hero-scroll-track {
  position: relative;
  width: 100%;
  height: 280vh; /* Compact 180vh travel distance for 240 frames */
  background-color: var(--bg-space);
}

.hero-sticky-container {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Canvas background */
.hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* Multi-layer Overlays for Maximum Contrast & Atmosphere */
.hero-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Radial Vignette (keeps orbital Earth bright center, darkens UI zones) */
.hero-vignette {
  z-index: 2;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(3, 7, 18, 0.2) 0%,
    rgba(3, 7, 18, 0.55) 55%,
    rgba(3, 7, 18, 0.88) 100%
  );
}

/* Top linear gradient for header readability */
.hero-top-gradient {
  z-index: 3;
  background: linear-gradient(
    to bottom,
    rgba(3, 7, 18, 0.9) 0%,
    rgba(3, 7, 18, 0.5) 15%,
    transparent 35%
  );
}

/* Bottom linear gradient for seamless downstream section transition */
.hero-bottom-gradient {
  z-index: 3;
  background: linear-gradient(
    to top,
    rgba(3, 7, 18, 1) 0%,
    rgba(3, 7, 18, 0.85) 12%,
    rgba(3, 7, 18, 0.3) 25%,
    transparent 45%
  );
}

/* Aerospace Telemetry Grid Overlay */
.hero-grid-scan {
  z-index: 4;
  background-image: 
    linear-gradient(rgba(56, 189, 248, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: center center;
}

/* ==========================================================================
   Foreground Interactive UI Layer
   ========================================================================== */
.hero-foreground-ui {
  position: absolute;
  inset: 0;
  z-index: 10;
  pointer-events: none; /* Passes mouse events through to allow smooth scrolling */
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 5.5rem 2.5rem 2.5rem 2.5rem;
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
}

/* All interactive child elements enable pointer events */
.hero-foreground-ui * {
  pointer-events: auto;
}

/* Top HUD Ribbon */
.hud-ribbon {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(56, 189, 248, 0.12);
  padding-bottom: 0.6rem;
  pointer-events: none;
  width: 100%;
}

.hud-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.hud-label {
  color: var(--accent-sky);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.hud-val {
  color: var(--text-secondary);
}

/* Center Content Box */
.hero-content-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin: auto 0;
  max-width: 880px;
  align-self: center;
  transition: opacity 0.3s ease-out, transform 0.3s var(--ease-out);
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid var(--border-active);
  box-shadow: 0 0 25px rgba(56, 189, 248, 0.15);
  backdrop-filter: blur(12px);
  margin-bottom: 1.5rem;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulse-dot 2.2s infinite;
  flex-shrink: 0;
}

.badge-text {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent-sky);
}

/* Main Hero Title */
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6.5vw, 5.2rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: #ffffff;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.8), 0 0 60px rgba(56, 189, 248, 0.25);
  margin-bottom: 1.25rem;
}

.title-highlight {
  background: linear-gradient(135deg, #38bdf8 0%, #34d399 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  filter: drop-shadow(0 0 25px rgba(56, 189, 248, 0.4));
}

/* Subtitle */
.hero-subtitle {
  font-size: clamp(1.1rem, 2.2vw, 1.65rem);
  font-weight: 400;
  color: #e2e8f0;
  letter-spacing: -0.01em;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.9);
  margin-bottom: 2rem;
}

/* Action Buttons */
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.hero-cta-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 2.2rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.98rem;
  color: #030712;
  background: linear-gradient(135deg, #38bdf8 0%, #34d399 100%);
  box-shadow: 0 0 35px rgba(56, 189, 248, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.4);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s ease-out, background-color 0.3s ease-out, color 0.3s ease-out;
  overflow: hidden;
}

.hero-cta-btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 0 50px rgba(56, 189, 248, 0.65), inset 0 1px 0 rgba(255, 255, 255, 0.8);
  color: #000000;
}

.cta-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.cta-icon {
  width: 18px;
  height: 18px;
}

.hero-secondary-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.8rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  color: #e2e8f0;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(12px);
  transition: var(--transition-smooth);
}

.hero-secondary-btn svg {
  width: 16px;
  height: 16px;
  transition: transform 0.2s var(--ease-out);
}

.hero-secondary-btn:hover {
  background: rgba(30, 41, 59, 0.8);
  border-color: var(--border-active);
  color: #ffffff;
}

.hero-secondary-btn:hover svg {
  transform: translateX(4px);
}

/* Interactive Natural Language Query Demo Bar */
.hero-query-bar {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  width: 100%;
  max-width: 680px;
  padding: 0.6rem 0.8rem 0.6rem 1.25rem;
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-full);
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 20px rgba(56, 189, 248, 0.1);
  transition: var(--transition-smooth);
}

.hero-query-bar:focus-within,
.hero-query-bar:hover {
  border-color: var(--accent-sky);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6), 0 0 30px rgba(56, 189, 248, 0.25);
}

.query-prompt-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  color: var(--accent-sky);
  flex-shrink: 0;
}

.query-prompt-icon svg {
  width: 100%;
  height: 100%;
}

.query-text-rotator {
  flex: 1;
  text-align: left;
  font-size: 0.88rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.query-prefix {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--accent-emerald);
  font-weight: 600;
  text-transform: uppercase;
  margin-right: 0.35rem;
}

.query-animated-text {
  color: #cbd5e1;
  font-style: italic;
  transition: opacity 0.3s ease;
}

.query-execute-btn {
  background: rgba(56, 189, 248, 0.15);
  color: var(--accent-sky);
  border: 1px solid var(--border-active);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  flex-shrink: 0;
}

.query-execute-btn:hover {
  background: var(--accent-sky);
  color: #030712;
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.4);
}

/* ==========================================================================
   HUD Bottom Bar (Stats, Scroll Prompt, Frame Progress)
   ========================================================================== */
.hud-bottom-bar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  width: 100%;
  pointer-events: none;
}

.hud-bottom-bar * {
  pointer-events: auto;
}

/* Bottom Left Telemetry */
.hud-bottom-left {
  display: flex;
  gap: 1.5rem;
  font-family: var(--font-mono);
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.65rem 1.15rem;
  backdrop-filter: blur(12px);
}

.telemetry-stat {
  display: flex;
  flex-direction: column;
}

.t-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.t-value {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-sky);
}

/* Bottom Center Scroll Prompt */
.hud-scroll-prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  transition: opacity 0.3s ease;
}

.scroll-prompt-text {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
}

.scroll-mouse-pill {
  width: 22px;
  height: 36px;
  border-radius: 12px;
  border: 2px solid var(--border-active);
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(8px);
  display: flex;
  justify-content: center;
  padding-top: 6px;
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.2);
}

.scroll-mouse-wheel {
  width: 3px;
  height: 7px;
  border-radius: 2px;
  background-color: var(--accent-sky);
  box-shadow: 0 0 6px var(--accent-sky);
  animation: scroll-wheel-anim 1.8s infinite cubic-bezier(0.65, 0, 0.35, 1);
}

@keyframes scroll-wheel-anim {
  0% { transform: translateY(0); opacity: 1; }
  80% { transform: translateY(12px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* Bottom Right Frame Progress */
.hud-bottom-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
}

.frame-counter-box {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.65rem 1.15rem;
  backdrop-filter: blur(12px);
  min-width: 175px;
}

.frame-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.frame-value {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.05em;
  margin: 0.15rem 0 0.4rem 0;
}

.frame-progress-track {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.frame-progress-bar {
  width: 0.4%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-sky));
  box-shadow: 0 0 10px var(--accent-sky);
  border-radius: var(--radius-full);
  transition: width 0.08s linear;
}

/* Preload status indicator */
.preload-status-pill {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-secondary);
  background: rgba(3, 7, 18, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 0.25rem 0.75rem;
  backdrop-filter: blur(8px);
  transition: opacity 0.4s ease;
}

.preload-status-pill.loaded {
  border-color: rgba(16, 185, 129, 0.3);
  color: var(--accent-emerald);
}

.preload-spinner {
  width: 8px;
  height: 8px;
  border: 1.5px solid var(--accent-sky);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.preload-status-pill.loaded .preload-spinner {
  border-color: var(--accent-emerald);
  animation: none;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 6px var(--accent-emerald);
}

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

/* ==========================================================================
   Downstream Sections
   ========================================================================= */
.section-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 6rem 2.5rem;
}

/* Capabilities Section */
.section-capabilities {
  position: relative;
  background-color: var(--bg-space);
  z-index: 20;
  border-top: 1px solid var(--border-subtle);
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 4.5rem auto;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-sky);
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.85rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.75rem;
}

.cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}

.cap-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-sky), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

@media (hover: hover) and (pointer: fine) {
  .cap-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-active);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 25px rgba(56, 189, 248, 0.15);
  }

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

.card-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-sky);
  margin-bottom: 1.5rem;
}

.card-icon-wrap svg {
  width: 24px;
  height: 24px;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.75rem;
}

.card-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.75rem;
  flex-grow: 1;
}

.card-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.1);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  align-self: flex-start;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Interactive Demo Terminal */
.section-demo {
  background: linear-gradient(180deg, var(--bg-space) 0%, rgba(15, 23, 42, 0.5) 100%);
  border-top: 1px solid var(--border-subtle);
  position: relative;
  z-index: 20;
}

.demo-window {
  background: rgba(11, 17, 33, 0.85);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 40px rgba(56, 189, 248, 0.15);
  backdrop-filter: blur(20px);
}

.demo-window-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.5rem;
  background: rgba(15, 23, 42, 0.95);
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.window-dots {
  display: flex;
  gap: 0.45rem;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #eab308; }
.dot-green { background: #22c55e; }

.window-title {
  color: var(--text-secondary);
  font-weight: 500;
}

.window-status {
  color: var(--accent-emerald);
}

.demo-body {
  padding: 2rem;
}

.demo-query-area {
  margin-bottom: 2rem;
}

.terminal-prompt-line {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(3, 7, 18, 0.75);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.25rem;
  margin-bottom: 1rem;
}

.t-prompt {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-emerald);
  font-weight: 600;
  flex-shrink: 0;
}

.terminal-input {
  flex: 1;
  background: transparent;
  border: none;
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
}

.terminal-run-btn {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-sky));
  color: #030712;
  border: none;
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.82rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.terminal-run-btn:hover {
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.5);
  transform: translateY(-1px);
}

.terminal-tags {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
  font-size: 0.8rem;
}

.tag-title {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.query-chip {
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid var(--border-subtle);
  color: var(--accent-sky);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.query-chip:hover {
  background: rgba(56, 189, 248, 0.2);
  border-color: var(--border-active);
  color: #ffffff;
}

.demo-results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
}

.result-metric-card {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
}

.metric-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent-sky);
  margin-bottom: 0.25rem;
}

.metric-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 0.35rem;
}

.metric-sub {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Stats Row */
.section-stats {
  background-color: var(--bg-space);
  border-top: 1px solid var(--border-subtle);
  position: relative;
  z-index: 20;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2.5rem;
  text-align: center;
}

.stat-col {
  padding: 1rem;
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 800;
  background: linear-gradient(135deg, #ffffff 30%, var(--accent-sky) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

.stat-name {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

/* Final CTA */
.section-cta {
  background: radial-gradient(circle at 50% 100%, rgba(56, 189, 248, 0.12) 0%, var(--bg-space) 70%);
  border-top: 1px solid var(--border-subtle);
  position: relative;
  z-index: 20;
}

.cta-banner {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.cta-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.cta-primary-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-sky));
  color: #030712;
  border: none;
  padding: 1rem 2rem;
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  box-shadow: 0 0 30px rgba(56, 189, 248, 0.35);
  transition: var(--transition-smooth);
}

.cta-primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 45px rgba(56, 189, 248, 0.55);
}

.cta-primary-btn svg {
  width: 18px;
  height: 18px;
}

.cta-secondary-btn {
  background: rgba(15, 23, 42, 0.8);
  color: #ffffff;
  border: 1px solid var(--border-active);
  padding: 1rem 2rem;
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.cta-secondary-btn:hover {
  background: rgba(30, 41, 59, 0.9);
  border-color: var(--accent-sky);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  background-color: #02040a;
  padding: 3rem 2.5rem;
  position: relative;
  z-index: 20;
}

.footer-container {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-brand .brand-name {
  font-size: 1.05rem;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.footer-credits {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Accessibility: prefers-reduced-motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  .hero-scroll-track {
    height: 100vh;
    min-height: 700px;
  }
  
  .hero-sticky-container {
    position: relative;
  }
  
  .hud-scroll-prompt,
  .frame-counter-box {
    display: none !important;
  }
  
  .scroll-mouse-wheel,
  .status-pulse,
  .badge-dot {
    animation: none !important;
  }
}

/* ==========================================================================
   Responsive Adaptations (Mobile & Tablet)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-foreground-ui {
    padding: 5rem 2rem 2rem 2rem;
  }
  
  .hud-coords,
  .hud-altitude {
    display: none;
  }
  
  .nav-links {
    display: none;
  }

  .demo-ribbon-inner {
    padding: 0.45rem 1rem;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .demo-ribbon-inner::-webkit-scrollbar {
    display: none;
  }
}

@media (max-width: 768px) {
  .hero-scroll-track {
    height: 260vh; /* Compact travel on mobile */
  }

  .nav-container {
    padding: 0.65rem 1rem;
  }

  .brand-logo {
    gap: 0.5rem;
  }

  .brand-name {
    font-size: 0.95rem;
    letter-spacing: 0.08em;
  }

  .btn-nav-cta {
    padding: 0.32rem 0.75rem;
    font-size: 0.72rem;
  }

  .status-indicator {
    display: none;
  }

  .hero-foreground-ui {
    padding: 4rem 1rem 1.25rem 1rem;
  }

  .hud-ribbon {
    font-size: 0.6rem;
    justify-content: center;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .hero-badge {
    padding: 0.3rem 0.75rem;
    max-width: 100%;
    margin-bottom: 1rem;
  }

  .badge-text {
    font-size: 0.65rem;
    letter-spacing: 0.04em;
  }

  .hero-title {
    font-size: clamp(1.75rem, 8vw, 2.6rem);
    letter-spacing: -0.02em;
    margin-bottom: 0.65rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
    margin-bottom: 1.4rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 0.65rem;
    margin-bottom: 1.25rem;
  }

  .hero-cta-btn,
  .hero-secondary-btn {
    width: 100%;
    padding: 0.8rem 1.25rem;
    font-size: 0.88rem;
  }

  .hero-query-bar {
    display: none; /* Hide query pill on small mobile to maximize visual impact */
  }

  .hud-bottom-bar {
    flex-direction: column;
    align-items: center;
    gap: 0.65rem;
  }

  .hud-bottom-left {
    display: none; /* Hide telemetry on mobile */
  }

  .hud-bottom-right {
    align-items: center;
    width: 100%;
  }

  .frame-counter-box {
    align-items: center;
    width: 100%;
    padding: 0.45rem 0.85rem;
    min-width: unset;
  }

  .hud-scroll-prompt {
    display: none;
  }
}

/* ==========================================================================
   Press feedback — every pressable element confirms the press instantly
   ========================================================================== */
.hero-cta-btn:active { transform: scale(0.97); }
.hero-secondary-btn:active { transform: scale(0.97); }
.btn-nav-cta:active { transform: scale(0.97); }
.cta-primary-btn:active { transform: scale(0.97); }
.cta-secondary-btn:active { transform: scale(0.97); }
.terminal-run-btn:active { transform: scale(0.97); }
.query-chip:active { transform: scale(0.97); }
.hero-cta-btn:active, .hero-secondary-btn:active, .btn-nav-cta:active,
.cta-primary-btn:active, .cta-secondary-btn:active,
.terminal-run-btn:active, .query-chip:active { transition-duration: 160ms; }