/**
 * KaissIO — Cinematic 3D Design System & Stylesheet
 * Architecture: CSS Custom Properties, Dark (Default) & Light Themes, RTL Support
 * Inspirations: Three.js showcase, Linear.app, Stripe
 */

/* -------------------------------------------------------------
 * 1. DESIGN TOKENS & THEMING
 * ------------------------------------------------------------- */
:root {
  /* Fonts */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;

  /* Obsidian Dark (Default Cinematic Theme) */
  --bg-main: #06090e;
  --bg-surface: #0b0f19;
  --bg-surface-elevated: #111827;
  --bg-surface-glass: rgba(11, 15, 25, 0.75);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(0, 210, 255, 0.35);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-blue: #0066ff;
  --accent-cyan: #00d2ff;
  --accent-lime: #00f090;
  --accent-amber: #f59e0b;
  --accent-red: #ef4444;

  --glow-blue: 0 0 35px rgba(0, 102, 255, 0.25);
  --glow-cyan: 0 0 30px rgba(0, 210, 255, 0.2);
  --glow-lime: 0 0 25px rgba(0, 240, 144, 0.2);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-surface-glass: rgba(255, 255, 255, 0.85);
  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 102, 255, 0.35);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;

  --glow-blue: 0 4px 20px rgba(0, 102, 255, 0.12);
  --glow-cyan: 0 4px 20px rgba(0, 210, 255, 0.1);
  --glow-lime: 0 4px 20px rgba(0, 240, 144, 0.12);
}

/* -------------------------------------------------------------
 * 2. RESET & BASE
 * ------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -60px;
  inset-inline-start: 20px;
  background: var(--accent-blue);
  color: #ffffff;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  z-index: 10000;
  font-weight: 600;
  text-decoration: none;
  transition: top var(--transition-fast);
}
.skip-link:focus {
  top: 20px;
}

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

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

input {
  font: inherit;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: 24px;
}

/* -------------------------------------------------------------
 * 3. NAVIGATION BAR
 * ------------------------------------------------------------- */
.site-nav {
  position: fixed;
  top: 0;
  inset-inline: 0;
  height: 72px;
  z-index: 1000;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
  border-bottom: 1px solid transparent;
}

.site-nav.scrolled {
  background-color: var(--bg-surface-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border-subtle);
}

.nav-wrapper {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.nav-logo-full {
  height: 38px;
  width: auto;
  object-fit: contain;
  display: block;
}

.drawer-logo-img {
  height: 34px;
  width: auto;
  object-fit: contain;
  display: block;
}

.footer-logo-img {
  height: 42px;
  width: auto;
  object-fit: contain;
  display: block;
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.brand-accent {
  color: var(--accent-cyan);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.925rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

.nav-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Language selector */
.lang-selector {
  display: flex;
  align-items: center;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 3px;
}

.lang-btn {
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.lang-btn.active {
  background: var(--accent-blue);
  color: #ffffff;
}

/* Theme toggle */
.theme-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}
.theme-btn:hover {
  border-color: var(--border-hover);
}

/* Store button */
.btn-nav-play {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: linear-gradient(135deg, var(--accent-blue), #0050d0);
  color: #ffffff;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--glow-blue);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.btn-nav-play:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 25px rgba(0, 102, 255, 0.4);
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-size: 1.4rem;
}

/* Mobile Drawer */
.nav-drawer {
  position: fixed;
  inset-block: 0;
  inset-inline-end: -100%;
  width: 280px;
  background: var(--bg-surface);
  border-inline-start: 1px solid var(--border-subtle);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  padding: 24px;
  transition: inset-inline-end var(--transition-normal);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
}

.nav-drawer.open {
  inset-inline-end: 0;
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.drawer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.drawer-links a {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* -------------------------------------------------------------
 * 4. CINEMATIC HERO SECTION
 * ------------------------------------------------------------- */
.hero-section {
  position: relative;
  min-height: 100vh;
  padding-top: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Ambient glow backgrounds */
.hero-glow-1 {
  position: absolute;
  top: -100px;
  inset-inline-start: 15%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 102, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(80px);
}

.hero-glow-2 {
  position: absolute;
  top: 20%;
  inset-inline-end: 10%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(0, 240, 144, 0.08) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(90px);
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 40px;
  z-index: 10;
  padding-block: 40px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-cyan);
  background: rgba(0, 210, 255, 0.08);
  border: 1px solid rgba(0, 210, 255, 0.25);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
  letter-spacing: 0.05em;
}

.hero-title {
  font-size: clamp(2.6rem, 5.2vw, 4.2rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin-bottom: 24px;
}

.hero-title-accent {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 540px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  background: linear-gradient(135deg, var(--accent-blue), #004ecc);
  color: #ffffff;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1rem;
  box-shadow: var(--glow-blue);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 35px rgba(0, 102, 255, 0.5);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1rem;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.btn-secondary:hover {
  border-color: var(--border-hover);
  background: var(--bg-surface);
}

/* Google Play Store Badge Button */
.btn-play-store {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 22px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}
.btn-play-store:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.play-icon {
  font-size: 1.6rem;
}
.play-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  text-align: start;
}
.play-sub {
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.play-title {
  font-size: 1.05rem;
  font-weight: 700;
}

/* 3D Scene Container */
.hero-3d-wrapper {
  position: relative;
  width: 100%;
  height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#hero-3d-container {
  width: 100%;
  height: 100%;
  position: relative;
}

#hero-3d-container canvas {
  width: 100% !important;
  height: 100% !important;
  outline: none;
}

/* Fallback when WebGL is inactive */
.hero-3d-fallback {
  display: none;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, var(--bg-surface-elevated) 0%, var(--bg-surface) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 30px;
}
.fallback-active .hero-3d-fallback {
  display: flex;
  flex-direction: column;
}

/* Scroll indicator */
.hero-scroll-cue {
  position: absolute;
  bottom: 24px;
  inset-inline-start: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  opacity: 0.8;
  z-index: 10;
}
.scroll-mouse {
  width: 20px;
  height: 32px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}
.scroll-wheel {
  width: 4px;
  height: 6px;
  background: var(--accent-cyan);
  border-radius: var(--radius-full);
  animation: scrollAnim 1.8s infinite;
}
@keyframes scrollAnim {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(12px); opacity: 0; }
}

/* -------------------------------------------------------------
 * 5. METRICS STRIP
 * ------------------------------------------------------------- */
.metrics-strip {
  border-block: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  padding-block: 28px;
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.metric-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.metric-val {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}
.metric-lbl {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* -------------------------------------------------------------
 * 5.5 CINEMATIC COMMERCIAL SCROLL THEATER
 * ------------------------------------------------------------- */
.cinema-section {
  padding-block: 100px 120px;
  position: relative;
  overflow: hidden;
}

.cinema-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 850px;
  height: 520px;
  background: radial-gradient(circle, rgba(0, 102, 255, 0.18) 0%, rgba(0, 210, 255, 0.08) 50%, transparent 70%);
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
}

.cinema-theater-frame {
  max-width: 1060px;
  margin-inline: auto;
  position: relative;
  z-index: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 14px;
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.7), var(--glow-blue);
  /* Scroll-reveal transition */
  transform: scale(0.93) translateY(35px);
  opacity: 0.5;
  transition: transform 0.85s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.85s ease;
}

.cinema-theater-frame.in-view {
  transform: scale(1) translateY(0);
  opacity: 1;
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.8), var(--glow-cyan);
}

.cinema-video-box {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #000000;
}

.cinema-video-box video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.cinema-floating-top {
  position: absolute;
  top: 16px;
  inset-inline: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
  z-index: 4;
}

.cinema-live-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(10px);
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  padding: 6px 14px;
  border-radius: var(--radius-full);
}

.cinema-audio-btn {
  pointer-events: auto;
  position: absolute;
  bottom: 18px;
  inset-inline-end: 18px;
  z-index: 5;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 210, 255, 0.4);
  color: #ffffff;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  transition: all var(--transition-fast);
}

.cinema-audio-btn:hover {
  background: var(--accent-blue);
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}

/* Story 1 Scanner Video */
.story-video-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  background: #000000;
  border: 1px solid var(--border-subtle);
}
.story-scanner-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.story-scan-hud {
  position: absolute;
  bottom: 12px;
  inset-inline-start: 12px;
  display: flex;
  gap: 8px;
}
.hud-barcode-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: rgba(0, 0, 0, 0.85);
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}
.hud-status-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: rgba(0, 240, 144, 0.2);
  border: 1px solid var(--accent-lime);
  color: var(--accent-lime);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-weight: 700;
}

/* -------------------------------------------------------------
 * 6. CINEMATIC PRODUCT REVEAL DASHBOARD
 * ------------------------------------------------------------- */
.reveal-section {
  padding-block: 100px;
  position: relative;
}
.section-header {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: 56px;
}
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent-lime);
  margin-bottom: 14px;
  display: inline-block;
}
.section-title {
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

/* 3D Perspective Tilt on the Dashboard */
.dashboard-viewport {
  perspective: 1400px;
}
.dashboard-frame {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4), var(--glow-blue);
  overflow: hidden;
  transform: rotateX(4deg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}
.dashboard-frame:hover {
  transform: rotateX(0deg);
  box-shadow: 0 35px 80px rgba(0, 0, 0, 0.5), var(--glow-cyan);
}

.dash-topbar {
  background: var(--bg-surface-elevated);
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
}
.dash-store-info {
  display: flex;
  align-items: center;
  gap: 16px;
}
.dash-store-name {
  font-weight: 700;
  font-size: 0.95rem;
}
.dash-status-pill {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-lime);
  background: rgba(0, 240, 144, 0.1);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}
.dash-period-switch {
  display: flex;
  gap: 6px;
  background: var(--bg-main);
  padding: 3px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
}
.period-btn {
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.period-btn.active {
  background: var(--accent-blue);
  color: #ffffff;
}

.dash-body {
  padding: 24px;
}
.dash-stat-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 24px;
}
.dash-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.dash-card-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.dash-card-val {
  font-size: 1.6rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-primary);
}
.dash-card-val.profit {
  color: var(--accent-lime);
}
.dash-card-sub {
  font-size: 0.78rem;
  color: var(--accent-cyan);
}

.dash-visual-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 20px;
}
.dash-chart-panel, .dash-recent-panel {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
}
.panel-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--text-primary);
}

/* CSS Chart Bars */
.chart-bars-wrap {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: 160px;
  padding-top: 10px;
  border-bottom: 1px solid var(--border-subtle);
}
.chart-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 10%;
  height: 100%;
  justify-content: flex-end;
}
.chart-bar-fill {
  width: 100%;
  background: linear-gradient(to top, var(--accent-blue), var(--accent-cyan));
  border-radius: 4px 4px 0 0;
  transition: height 0.4s ease;
}
.chart-col-time {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Recent Transaction Rows */
.recent-tx-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.recent-tx-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}
.tx-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.tx-name {
  font-size: 0.85rem;
  font-weight: 600;
}
.tx-time {
  font-size: 0.72rem;
  color: var(--text-muted);
}
.tx-amt {
  font-size: 0.9rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-lime);
}

/* -------------------------------------------------------------
 * 7. LIVE POS DEMONSTRATION TERMINAL
 * ------------------------------------------------------------- */
.demo-section {
  padding-block: 100px;
  background: var(--bg-surface);
  border-block: 1px solid var(--border-subtle);
}
.pos-terminal-sim {
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  overflow: hidden;
  max-width: 1120px;
  margin-inline: auto;
}
.pos-topbar {
  background: var(--bg-surface-elevated);
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
}
.pos-status-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-lime);
  background: rgba(0, 240, 144, 0.12);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}
.pos-layout {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  min-height: 520px;
}

/* Catalog Left */
.pos-catalog-pane {
  padding: 20px;
  border-inline-end: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.pos-search-bar {
  display: flex;
  gap: 10px;
}
.pos-search-input {
  flex: 1;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 0.9rem;
}
.pos-search-input:focus {
  outline: none;
  border-color: var(--accent-cyan);
}
.btn-scan-sim {
  padding: 10px 18px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: #ffffff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: transform var(--transition-fast), filter var(--transition-fast);
}
.btn-scan-sim.scanning {
  filter: brightness(1.5);
  transform: scale(0.97);
}

.pos-categories {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.cat-pill {
  padding: 6px 14px;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--bg-surface-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}
.cat-pill.active {
  background: var(--accent-blue);
  color: #ffffff;
  border-color: var(--accent-blue);
}

.pos-products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  overflow-y: auto;
  max-height: 380px;
  padding-inline-end: 4px;
}
.pos-prod-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: start;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}
.pos-prod-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}
.prod-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.prod-icon {
  font-size: 1.3rem;
}
.prod-profit-badge {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent-lime);
  background: rgba(0, 240, 144, 0.1);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
}
.prod-name {
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--text-primary);
}
.prod-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}
.prod-price {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}
.prod-barcode {
  font-size: 0.68rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Cart Right */
.pos-cart-pane {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--bg-surface);
}
.pos-cart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 12px;
}
.pos-cart-title {
  font-size: 1rem;
  font-weight: 700;
}
.btn-clear-cart {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
}
.btn-clear-cart:hover {
  color: var(--accent-red);
}

.pos-cart-items {
  flex: 1;
  overflow-y: auto;
  max-height: 220px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.pos-cart-empty {
  padding: 40px 10px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.pos-cart-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 30px;
  align-items: center;
  gap: 8px;
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
}
.cart-row-title {
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cart-row-unit {
  font-size: 0.7rem;
  color: var(--text-muted);
}
.cart-qty-ctrls {
  display: flex;
  align-items: center;
  gap: 6px;
}
.qty-btn {
  width: 22px;
  height: 22px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}
.qty-num {
  font-size: 0.82rem;
  font-weight: 700;
  font-family: var(--font-mono);
}
.cart-row-total {
  font-size: 0.85rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
  text-align: end;
}
.cart-del-btn {
  font-size: 1.1rem;
  color: var(--text-muted);
}
.cart-del-btn:hover {
  color: var(--accent-red);
}

/* Profit Banner on Cart */
.pos-profit-pill {
  background: rgba(0, 240, 144, 0.08);
  border: 1px solid rgba(0, 240, 144, 0.3);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.profit-pill-lbl {
  font-size: 0.78rem;
  color: var(--text-secondary);
}
.profit-pill-vals {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.profit-pill-dh {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--accent-lime);
  font-family: var(--font-mono);
}
.profit-pill-pct {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.pos-totals-box {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 12px;
}
.totals-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.totals-row.grand {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
}
.totals-row.grand span:last-child {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.pos-tender-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.tender-method-btn {
  padding: 8px 4px;
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  text-align: center;
}
.tender-method-btn.active {
  border-color: var(--accent-blue);
  background: rgba(0, 102, 255, 0.15);
  color: var(--accent-cyan);
}

.btn-complete-pay {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--accent-blue), #0050d0);
  color: #ffffff;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: var(--glow-blue);
}
.btn-complete-pay:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
}

/* Tender Receipt Modal */
.tender-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.tender-modal-overlay.active {
  display: flex;
}
.tender-modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-md);
  max-width: 420px;
  width: 100%;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  text-align: center;
}
.modal-check-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: rgba(0, 240, 144, 0.15);
  color: var(--accent-lime);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-inline: auto;
}
.modal-receipt-box {
  background: var(--bg-main);
  border: 1px dashed var(--border-subtle);
  padding: 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: start;
}

/* -------------------------------------------------------------
 * 8. STORYTELLING EDITORIAL FEATURE SECTIONS
 * ------------------------------------------------------------- */
.story-section {
  padding-block: 100px;
}
.story-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
}
.story-layout.reverse {
  direction: rtl;
}
.story-layout.reverse > * {
  direction: ltr;
}
[dir="rtl"] .story-layout.reverse {
  direction: ltr;
}
[dir="rtl"] .story-layout.reverse > * {
  direction: rtl;
}

.story-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}
.story-title {
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-bottom: 20px;
}
.story-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 24px;
}
.story-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.story-points li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-primary);
}
.point-bullet {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--accent-lime);
  flex-shrink: 0;
}

.story-visual-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: 0 15px 45px rgba(0, 0, 0, 0.3);
  position: relative;
  overflow: hidden;
}

/* -------------------------------------------------------------
 * 9. HARDWARE ECOSYSTEM
 * ------------------------------------------------------------- */
.hardware-section {
  padding-block: 100px;
  background: var(--bg-surface);
  border-block: 1px solid var(--border-subtle);
}
.hardware-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.hardware-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}
.hardware-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-cyan);
}
.hard-icon {
  font-size: 2rem;
}
.hard-title {
  font-size: 1.1rem;
  font-weight: 700;
}
.hard-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* -------------------------------------------------------------
 * 10. PRICING SECTION
 * ------------------------------------------------------------- */
.pricing-section {
  padding-block: 100px;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  max-width: 900px;
  margin-inline: auto;
}
.pricing-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  position: relative;
}
.pricing-card.featured {
  border-color: var(--accent-blue);
  box-shadow: var(--glow-blue);
}
.pricing-badge {
  position: absolute;
  top: -14px;
  inset-inline-end: 24px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: #ffffff;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.plan-name {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 8px;
}
.plan-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-block: 16px;
}
.plan-price {
  font-size: 2.8rem;
  font-weight: 900;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
}
.plan-period {
  color: var(--text-muted);
  font-size: 0.9rem;
}
.plan-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 24px;
  min-height: 48px;
}
.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  flex: 1;
}
.plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-primary);
}
.plan-check {
  color: var(--accent-lime);
  font-weight: 800;
}

/* -------------------------------------------------------------
 * 11. FAQ ACCORDION
 * ------------------------------------------------------------- */
.faq-section {
  padding-block: 100px;
  background: var(--bg-surface);
  border-block: 1px solid var(--border-subtle);
}
.faq-wrap {
  max-width: 820px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg-surface-elevated);
  overflow: hidden;
}
.faq-trigger {
  width: 100%;
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: start;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}
.faq-icon {
  font-size: 1.3rem;
  color: var(--text-muted);
  transition: transform var(--transition-normal);
}
.faq-trigger[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
  color: var(--accent-cyan);
}
.faq-panel {
  padding: 0 24px 20px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}
.faq-panel[hidden] {
  display: none;
}

/* -------------------------------------------------------------
 * 12. BOTTOM CTA BANNER & FOOTER
 * ------------------------------------------------------------- */
.cta-banner-section {
  padding-block: 100px;
  text-align: center;
  position: relative;
}
.cta-banner-card {
  background: radial-gradient(circle at center, var(--bg-surface-elevated) 0%, var(--bg-surface) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 64px 32px;
  max-width: 900px;
  margin-inline: auto;
  box-shadow: var(--glow-blue);
}

.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-main);
  padding-block: 60px 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-col-title {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}
.footer-links a:hover {
  color: var(--text-primary);
}
.footer-compliance-link {
  color: var(--accent-cyan) !important;
  font-weight: 600;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* -------------------------------------------------------------
 * 13. RESPONSIVE BREAKPOINTS
 * ------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-layout {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-description {
    margin-inline: auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-3d-wrapper {
    height: 440px;
  }
  .dash-stat-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .dash-visual-grid {
    grid-template-columns: 1fr;
  }
  .pos-layout {
    grid-template-columns: 1fr;
  }
  .pos-catalog-pane {
    border-inline-end: none;
    border-bottom: 1px solid var(--border-subtle);
  }
  .story-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hardware-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links, .btn-nav-play {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pos-products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hardware-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* -------------------------------------------------------------
 * 14. ACCESSIBILITY & REDUCED MOTION
 * ------------------------------------------------------------- */
@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;
  }
  .dashboard-frame {
    transform: none !important;
  }
}