:root {
  --bg-primary: 220 20% 6%;
  --bg-secondary: 222 25% 10%;
  --bg-surface: 220 20% 8%;
  --bg-card: 222 20% 12%;
  --bg-card-hover: 222 20% 16%;
  --border: 220 15% 20%;
  --border-focus: 217 91% 60%;
  --text-primary: 210 20% 98%;
  --text-secondary: 215 15% 70%;
  --text-muted: 215 15% 50%;
  --primary: 217 91% 60%;
  --glow-gemini-blue: 217 91% 60%;
  --glow-gemini-purple: 270 80% 65%;
  --glow-gemini-red: 345 80% 60%;
  --glow-gemini-yellow: 45 95% 55%;
  --accent-emerald: 150 70% 45%;
  --accent-gold: 45 90% 50%;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

html {
  font-family: var(--font-sans);
  background-color: hsl(var(--bg-primary));
  color: hsl(var(--text-primary));
  line-height: 1.6;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background-color: hsl(var(--bg-primary));
  color: hsl(var(--text-primary));
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Background mesh aura */
.bg-mesh-aura {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 0;
  background: 
    radial-gradient(circle at 20% 20%, hsl(var(--glow-gemini-blue) / 0.12) 0%, transparent 40%),
    radial-gradient(circle at 80% 25%, hsl(var(--glow-gemini-purple) / 0.12) 0%, transparent 45%),
    radial-gradient(circle at 50% 70%, hsl(var(--glow-gemini-red) / 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 85%, hsl(var(--glow-gemini-yellow) / 0.08) 0%, transparent 40%);
}

.content-wrapper {
  position: relative;
  z-index: 1;
  width: 100%;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background-color: hsl(var(--bg-primary) / 0.75);
  border-bottom: 1px solid hsl(var(--border) / 0.6);
  transition: all 0.25s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: hsl(var(--text-primary));
}

.brand-logo-gem {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-sm);
  background: conic-gradient(
    hsl(var(--glow-gemini-blue)),
    hsl(var(--glow-gemini-purple)),
    hsl(var(--glow-gemini-red)),
    hsl(var(--glow-gemini-yellow)),
    hsl(var(--glow-gemini-blue))
  );
  padding: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-logo-inner {
  width: 100%;
  height: 100%;
  border-radius: 6px;
  background-color: hsl(var(--bg-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  color: hsl(var(--text-primary));
}

.brand-title {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-urdu-tag {
  font-size: 0.95rem;
  color: hsl(var(--text-secondary));
  margin-left: 0.25rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  text-decoration: none;
  color: hsl(var(--text-secondary));
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  font-family: inherit;
}

.btn-primary {
  background-color: hsl(var(--primary));
  color: hsl(var(--text-primary));
  box-shadow: 0 4px 16px hsl(var(--primary) / 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 24px hsl(var(--primary) / 0.45);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: hsl(var(--bg-card));
  color: hsl(var(--text-primary));
  border-color: hsl(var(--border));
}

.btn-secondary:hover {
  background-color: hsl(var(--bg-card-hover));
  border-color: hsl(var(--border-focus));
  transform: translateY(-1px);
}

.glow-btn {
  position: relative;
  background: conic-gradient(
    from 180deg at 50% 50%,
    hsl(var(--glow-gemini-blue)),
    hsl(var(--glow-gemini-purple)),
    hsl(var(--glow-gemini-red)),
    hsl(var(--glow-gemini-yellow)),
    hsl(var(--glow-gemini-blue))
  );
  padding: 2px;
  border-radius: var(--radius-full);
  text-decoration: none;
  display: inline-block;
  cursor: pointer;
  border: none;
}

.glow-btn-inner {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-full);
  background-color: hsl(var(--bg-surface));
  color: hsl(var(--text-primary));
  font-weight: 600;
  font-size: 0.95rem;
  transition: background-color 0.2s ease;
}

.glow-btn:hover .glow-btn-inner {
  background-color: hsl(var(--bg-card));
}

/* Hero Section */
.section-hero {
  padding: 5rem 0 4rem;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  background-color: hsl(var(--bg-card));
  border: 1px solid hsl(var(--border));
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: hsl(var(--text-secondary));
}

.hero-pill-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background-color: hsl(var(--accent-emerald));
  box-shadow: 0 0 8px hsl(var(--accent-emerald));
}

.hero-heading {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  background: linear-gradient(135deg, hsl(var(--text-primary)) 60%, hsl(var(--text-secondary)));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-urdu-subtitle {
  font-size: 1.4rem;
  color: hsl(var(--glow-gemini-yellow));
  margin-bottom: 1rem;
  font-weight: 600;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: hsl(var(--text-secondary));
  max-width: 760px;
  margin: 0 auto 2.25rem;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

.hero-preview-container {
  max-width: 1040px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  padding: 2px;
  background: linear-gradient(135deg, hsl(var(--glow-gemini-blue) / 0.5), hsl(var(--glow-gemini-purple) / 0.5), hsl(var(--glow-gemini-red) / 0.3));
  box-shadow: 0 24px 64px hsl(var(--bg-primary) / 0.8);
}

.hero-preview-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: calc(var(--radius-lg) - 2px);
  background-color: hsl(var(--bg-surface));
}

/* Features Grid */
.section-features {
  padding: 5rem 0;
  border-top: 1px solid hsl(var(--border) / 0.5);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: hsl(var(--primary));
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  color: hsl(var(--text-primary));
}

.section-desc {
  font-size: 1.1rem;
  color: hsl(var(--text-secondary));
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.feature-card {
  padding: 2rem;
  border-radius: var(--radius-md);
  background-color: hsl(var(--bg-card));
  border: 1px solid hsl(var(--border));
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: hsl(var(--border-focus) / 0.5);
}

.feature-icon-wrapper {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: var(--radius-sm);
  background-color: hsl(var(--bg-surface));
  border: 1px solid hsl(var(--border));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.feature-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: hsl(var(--text-primary));
}

.feature-body {
  color: hsl(var(--text-secondary));
  font-size: 0.95rem;
}

/* Simulator Section */
.section-simulator {
  padding: 5rem 0;
  border-top: 1px solid hsl(var(--border) / 0.5);
  background-color: hsl(var(--bg-surface) / 0.4);
}

.simulator-container {
  max-width: 960px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  background-color: hsl(var(--bg-card));
  border: 1px solid hsl(var(--border));
  overflow: hidden;
  box-shadow: 0 16px 48px hsl(var(--bg-primary) / 0.6);
}

.simulator-toolbar {
  padding: 1rem 1.5rem;
  background-color: hsl(var(--bg-surface));
  border-bottom: 1px solid hsl(var(--border));
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.scenario-buttons {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.scenario-btn {
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-full);
  background-color: hsl(var(--bg-card));
  border: 1px solid hsl(var(--border));
  color: hsl(var(--text-secondary));
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.scenario-btn.active {
  background-color: hsl(var(--primary) / 0.15);
  border-color: hsl(var(--primary));
  color: hsl(var(--text-primary));
}

.simulator-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sim-control-btn {
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--bg-card));
  color: hsl(var(--text-primary));
  font-family: inherit;
  transition: background-color 0.2s ease;
}

.sim-control-btn:hover {
  background-color: hsl(var(--bg-card-hover));
}

.sim-control-btn.play-btn {
  background-color: hsl(var(--primary));
  border-color: hsl(var(--primary));
}

.simulator-screen {
  padding: 2rem;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.simulator-dialogue-box {
  background-color: hsl(var(--bg-surface));
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  border: 1px solid hsl(var(--border));
  margin-bottom: 1.5rem;
}

.sim-speaker-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: hsl(var(--primary));
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.sim-dialogue-text {
  font-size: 1.05rem;
  color: hsl(var(--text-primary));
  line-height: 1.5;
}

.simulator-deck-stage {
  flex-grow: 1;
  background-color: hsl(var(--bg-surface));
  border-radius: var(--radius-md);
  padding: 1.5rem;
  border: 1px solid hsl(var(--border));
  margin-bottom: 1.5rem;
  min-height: 160px;
}

.deck-badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  background-color: hsl(var(--bg-card));
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: hsl(var(--text-secondary));
  margin-bottom: 0.75rem;
}

.deck-content-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.deck-content-details {
  font-size: 0.95rem;
  color: hsl(var(--text-secondary));
}

/* Waveform dock inside simulator */
.sim-waveform-dock {
  background-color: hsl(var(--bg-surface));
  border-radius: var(--radius-md);
  padding: 1rem 1.5rem;
  border: 1px solid hsl(var(--border));
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.waveform-bars {
  display: flex;
  align-items: center;
  gap: 5px;
  height: 36px;
}

.wave-bar {
  width: 4px;
  border-radius: 2px;
  background-color: hsl(var(--border));
  height: 8px;
  transition: height 0.15s ease, background-color 0.2s ease;
}

.wave-bar.bar-1 { background-color: hsl(var(--glow-gemini-blue)); }
.wave-bar.bar-2 { background-color: hsl(var(--glow-gemini-purple)); }
.wave-bar.bar-3 { background-color: hsl(var(--glow-gemini-red)); }
.wave-bar.bar-4 { background-color: hsl(var(--glow-gemini-yellow)); }

.wave-bar.animating {
  animation: wavePulse 0.8s ease-in-out infinite alternate;
}

@keyframes wavePulse {
  0% { height: 6px; }
  100% { height: 32px; }
}

.sim-status-label {
  font-size: 0.85rem;
  color: hsl(var(--text-muted));
  font-family: var(--font-mono);
}

/* Gallery Section */
.section-gallery {
  padding: 5rem 0;
  border-top: 1px solid hsl(var(--border) / 0.5);
}

.gallery-tabs {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.gallery-tab-btn {
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  background-color: hsl(var(--bg-card));
  border: 1px solid hsl(var(--border));
  color: hsl(var(--text-secondary));
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.gallery-tab-btn.active {
  background-color: hsl(var(--primary));
  border-color: hsl(var(--primary));
  color: hsl(var(--text-primary));
}

.gallery-panels-wrapper {
  max-width: 1040px;
  margin: 0 auto;
}

.gallery-panel {
  display: none;
  opacity: 0;
  transition: opacity 0.35s ease;
}

.gallery-panel.active {
  display: block;
  opacity: 1;
}

.gallery-card {
  border-radius: var(--radius-lg);
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--bg-card));
  overflow: hidden;
  box-shadow: 0 16px 40px hsl(var(--bg-primary) / 0.5);
}

.gallery-img {
  width: 100%;
  height: auto;
  display: block;
  background-color: hsl(var(--bg-surface));
}

.gallery-caption {
  padding: 1.25rem 1.75rem;
  background-color: hsl(var(--bg-card));
  border-top: 1px solid hsl(var(--border));
}

.gallery-caption-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: hsl(var(--text-primary));
  margin-bottom: 0.25rem;
}

.gallery-caption-desc {
  font-size: 0.9rem;
  color: hsl(var(--text-secondary));
}

/* Pillars Section */
.section-pillars {
  padding: 5rem 0;
  border-top: 1px solid hsl(var(--border) / 0.5);
  background-color: hsl(var(--bg-surface) / 0.3);
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.pillar-card {
  padding: 2.25rem 1.75rem;
  border-radius: var(--radius-md);
  background-color: hsl(var(--bg-card));
  border: 1px solid hsl(var(--border));
}

.pillar-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.pillar-badge-security {
  background-color: hsl(var(--primary) / 0.15);
  color: hsl(var(--primary));
}

.pillar-badge-privacy {
  background-color: hsl(var(--glow-gemini-purple) / 0.15);
  color: hsl(var(--glow-gemini-purple));
}

.pillar-badge-compliance {
  background-color: hsl(var(--accent-emerald) / 0.15);
  color: hsl(var(--accent-emerald));
}

.pillar-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: hsl(var(--text-primary));
}

.pillar-desc {
  font-size: 0.95rem;
  color: hsl(var(--text-secondary));
  line-height: 1.55;
}

/* Ecosystem Section */
.section-ecosystem {
  padding: 5rem 0;
  border-top: 1px solid hsl(var(--border) / 0.5);
}

.ecosystem-container {
  max-width: 1100px;
  margin: 0 auto;
}

.app-family-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* Footer (Mandatory 6-parameter footer) */
.site-footer {
  border-top: 1px solid hsl(var(--border) / 0.6);
  background-color: hsl(var(--bg-surface));
  padding: 4.5rem 0 2.5rem;
  margin-top: auto;
}

.footer-main-row {
  display: flex;
  gap: 4rem;
  margin-bottom: 3.5rem;
}

.footer-brand-column {
  width: 320px;
  flex: 0 0 320px;
}

.footer-brand-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  color: hsl(var(--text-primary));
}

.footer-brand-desc {
  font-size: 0.95rem;
  color: hsl(var(--text-secondary));
  margin-bottom: 1.25rem;
  line-height: 1.55;
}

.footer-links-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  flex-grow: 1;
}

.footer-column-heading {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: hsl(var(--text-primary));
  margin-bottom: 1rem;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-link {
  color: hsl(var(--text-secondary));
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: hsl(var(--text-primary));
}

.footer-spec-item {
  font-size: 0.85rem;
  color: hsl(var(--text-muted));
  font-family: var(--font-mono);
}

.footer-bottom-row {
  border-top: 1px solid hsl(var(--border) / 0.5);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copyright {
  font-size: 0.85rem;
  color: hsl(var(--text-muted));
}

.footer-legal-links {
  display: flex;
  gap: 1.5rem;
}

.footer-legal-link {
  font-size: 0.85rem;
  color: hsl(var(--text-muted));
  text-decoration: none;
}

.footer-legal-link:hover {
  color: hsl(var(--text-primary));
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .hero-heading {
    font-size: 2.3rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .pillars-grid {
    grid-template-columns: 1fr;
  }
  .footer-main-row {
    flex-direction: column;
    gap: 2.5rem;
  }
  .footer-brand-column {
    width: 100%;
    flex: auto;
  }
  .footer-links-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}