/* Design system & Styling for KleemSoft Invoice */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* --- Root Variables (Default Dark Theme) --- */
:root {
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Color Palette */
  --bg-base: hsl(225, 25%, 5%);
  --bg-surface: hsl(225, 20%, 9%);
  --bg-surface-header: hsla(225, 20%, 9%, 0.8);
  --bg-surface-elevated: hsl(225, 20%, 13%);
  --border-color: hsla(225, 20%, 25%, 0.4);
  --border-color-glow: hsla(263, 90%, 65%, 0.2);

  --text-primary: hsl(225, 20%, 95%);
  --text-secondary: hsl(225, 10%, 75%);
  --text-muted: hsl(225, 10%, 55%);

  --primary: hsl(255, 85%, 60%);
  --primary-glow: hsla(255, 85%, 60%, 0.35);
  --primary-gradient: linear-gradient(135deg, hsl(255, 85%, 60%), hsl(280, 85%, 55%));
  
  --secondary: hsl(172, 80%, 45%);
  --secondary-glow: hsla(172, 80%, 45%, 0.25);
  
  --accent-blue: hsl(210, 100%, 55%);
  --accent-amber: hsl(35, 100%, 55%);
  --accent-emerald: hsl(150, 80%, 40%);
  
  --glass-bg: rgba(10, 12, 22, 0.45);
  --glass-border: rgba(255, 255, 255, 0.06);
  --glass-blur: blur(12px);

  --shadow-sm: 0 2px 8px -2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 12px 32px -8px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 24px 64px -12px rgba(0, 0, 0, 0.8);
  --shadow-primary: 0 8px 32px -4px rgba(99, 102, 241, 0.3);

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Light Theme Variables Override --- */
[data-theme="light"] {
  --bg-base: hsl(225, 20%, 96%);
  --bg-surface: hsl(225, 20%, 100%);
  --bg-surface-header: hsla(225, 20%, 100%, 0.8);
  --bg-surface-elevated: hsl(225, 20%, 93%);
  --border-color: hsla(225, 20%, 15%, 0.1);
  --border-color-glow: hsla(255, 85%, 60%, 0.1);

  --text-primary: hsl(225, 25%, 15%);
  --text-secondary: hsl(225, 15%, 35%);
  --text-muted: hsl(225, 10%, 55%);

  --primary: hsl(255, 85%, 55%);
  --primary-glow: hsla(255, 85%, 55%, 0.2);
  
  --glass-bg: rgba(255, 255, 255, 0.6);
  --glass-border: rgba(0, 0, 0, 0.05);

  --shadow-sm: 0 2px 8px -2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 12px 32px -8px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 24px 64px -12px rgba(0, 0, 0, 0.16);
  --shadow-primary: 0 8px 32px -4px rgba(99, 102, 241, 0.2);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* --- Navigation Header --- */
header.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--bg-surface-header);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: var(--glass-blur);
  transition: all var(--transition-normal);
}

header.site-header.scrolled {
  padding: 8px 0;
  box-shadow: var(--shadow-sm);
  background-color: var(--bg-surface);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  text-decoration: none;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--primary-gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  box-shadow: var(--shadow-primary);
}

.logo-text span {
  color: var(--secondary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.theme-toggle {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background-color: var(--bg-surface-elevated);
  border-color: var(--text-secondary);
}

/* --- Buttons --- */
.btn {
  font-family: var(--font-body);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: var(--primary-gradient);
  color: white;
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px -4px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background-color: var(--bg-surface-elevated);
  border-color: var(--text-secondary);
}

.btn-accent {
  background: linear-gradient(135deg, var(--secondary), hsl(172, 90%, 35%));
  color: hsl(225, 25%, 5%);
  box-shadow: 0 4px 20px -2px var(--secondary-glow);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -4px var(--secondary-glow);
}

.btn-glow {
  position: relative;
  overflow: hidden;
}

.btn-glow::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 60%);
  transform: scale(0);
  transition: transform 0.5s ease-out;
  pointer-events: none;
}

.btn-glow:hover::after {
  transform: scale(1.5);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  padding: 160px 24px 80px;
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  z-index: 1;
}

.hero-glow-1 {
  position: absolute;
  top: 10%;
  left: 25%;
  width: 400px;
  height: 400px;
  background: var(--primary-glow);
  filter: blur(120px);
  border-radius: 50%;
  z-index: -1;
  pointer-events: none;
}

.hero-glow-2 {
  position: absolute;
  bottom: 20%;
  right: 20%;
  width: 300px;
  height: 300px;
  background: var(--secondary-glow);
  filter: blur(100px);
  border-radius: 50%;
  z-index: -1;
  pointer-events: none;
}

.badge-pill {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--secondary);
  margin-bottom: 24px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.badge-pill i {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.2); opacity: 0.6; }
  100% { transform: scale(1); opacity: 1; }
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  max-width: 850px;
  margin-bottom: 24px;
}

.gradient-text {
  background: linear-gradient(135deg, hsl(220, 20%, 95%), hsl(220, 10%, 75%));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin-bottom: 40px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.trial-cta {
  padding: 14px 28px;
  font-size: 1.05rem;
}

.chat-cta {
  padding: 14px 28px;
  font-size: 1.05rem;
}

.hero-stats {
  display: flex;
  gap: 40px;
  justify-content: center;
  margin-bottom: 64px;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-val {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.stat-val span {
  color: var(--secondary);
}

.stat-lbl {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* --- Hero Mockup App Frame --- */
.hero-mockup {
  position: relative;
  width: 100%;
  max-width: 1000px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 6px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: var(--glass-blur);
  transition: transform var(--transition-slow);
}

.hero-mockup:hover {
  transform: perspective(1000px) rotateX(1deg) translateY(-4px);
}

.mockup-inner {
  background: var(--bg-surface);
  border-radius: calc(var(--radius-md) - 6px);
  overflow: hidden;
  border: 1px solid var(--border-color);
  aspect-ratio: 16 / 9.5;
  position: relative;
}

.mockup-header {
  height: 36px;
  background-color: var(--bg-surface-elevated);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 8px;
}

.dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red { background-color: hsl(0, 80%, 60%); }
.dot-yellow { background-color: hsl(40, 85%, 55%); }
.dot-green { background-color: hsl(140, 80%, 45%); }

.mockup-address {
  background-color: var(--bg-base);
  height: 22px;
  flex: 1;
  max-width: 400px;
  margin: 0 auto;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.mockup-content {
  width: 100%;
  height: calc(100% - 36px);
  position: relative;
}

.mockup-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* --- Trusted Section --- */
.trusted-by {
  padding: 40px 24px;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  text-align: center;
}

.trusted-title {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.logo-cloud {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: 32px;
}

.cloud-item {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-muted);
  opacity: 0.75;
  transition: opacity var(--transition-fast), color var(--transition-fast);
  cursor: default;
}

.cloud-item:hover {
  opacity: 1;
  color: var(--text-primary);
}

/* --- Features Section --- */
section.features {
  padding: 100px 24px;
  max-width: 1280px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 64px;
}

.section-header h2 {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

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

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 32px;
}

.feature-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 36px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--text-muted);
  box-shadow: var(--shadow-md);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--primary-gradient);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

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

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background-color: var(--bg-surface-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--primary);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.feature-card:hover .feature-icon {
  background: var(--primary-gradient);
  color: white;
  box-shadow: var(--shadow-primary);
  transform: scale(1.05);
}

.feature-card h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* --- Interactive Demo & Video Player --- */
section.interactive-tour {
  padding: 100px 24px;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.tour-container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: center;
}

.tour-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.tour-info h2 {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.2;
}

.tour-info p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.tour-buttons {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tour-tab {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-base);
  border: 1px solid var(--border-color);
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-normal);
}

.tour-tab.active {
  background-color: var(--bg-surface-elevated);
  border-color: var(--primary);
  box-shadow: 0 4px 20px -4px var(--primary-glow);
}

.tour-tab-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background-color: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.tour-tab.active .tour-tab-icon {
  background-color: var(--primary);
  color: white;
}

.tour-tab-content h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.tour-tab-content p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin: 0;
}

/* Simulated Video Screen Styling */
.tour-screen {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  position: relative;
  display: flex;
  flex-direction: column;
}

.screen-player-bar {
  height: 48px;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.player-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

.player-controls button {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1rem;
  transition: color var(--transition-fast);
}

.player-controls button:hover {
  color: var(--primary);
}

.player-progress {
  flex: 1;
  height: 4px;
  background-color: var(--bg-base);
  border-radius: 2px;
  margin: 0 16px;
  position: relative;
  cursor: pointer;
  overflow: hidden;
}

.progress-filled {
  height: 100%;
  width: 0%;
  background: var(--primary-gradient);
  border-radius: 2px;
  transition: width 0.1s linear;
}

.screen-content {
  flex: 1;
  padding: 24px;
  background-color: var(--bg-base);
  position: relative;
  overflow: hidden;
}

/* --- Animated UI for simulations --- */
.sim-app-window {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
}

.sim-sidebar {
  width: 60px;
  background-color: var(--bg-surface-elevated);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 16px;
  gap: 20px;
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  z-index: 2;
}

.sim-sidebar-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.sim-sidebar-icon.active {
  background-color: var(--primary-glow);
  color: var(--primary);
}

.sim-main {
  flex: 1;
  margin-left: 60px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: 100%;
  position: relative;
}

.sim-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
}

.sim-badge {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--secondary);
  border: 1px solid rgba(16, 185, 129, 0.2);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
}

/* Cursor Indicator */
.sim-cursor {
  position: absolute;
  width: 14px;
  height: 18px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 18'%3E%3Cpath fill='%236366f1' stroke='white' stroke-width='1.5' d='M0,0 L14,9 L8,10 L12,17 L9,18 L5,11 L0,15 Z'/%3E%3C/svg%3E") no-repeat;
  z-index: 100;
  pointer-events: none;
  transition: transform 0.8s ease-in-out, top 0.8s ease-in-out, left 0.8s ease-in-out;
}

/* Simulation 1: Invoice Generation Layout */
.sim-invoice-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 12px;
  height: calc(100% - 32px);
}

.sim-form {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sim-form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sim-form-group label {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 600;
}

.sim-input {
  background-color: var(--bg-base);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 6px 10px;
  font-size: 0.75rem;
  color: var(--text-primary);
  height: 28px;
  overflow: hidden;
  white-space: nowrap;
}

.sim-table-preview {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
}

.sim-table-row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 4px;
}

.sim-table-row.total {
  border-top: 1px solid var(--border-color);
  border-bottom: none;
  font-weight: 700;
  color: var(--secondary);
  padding-top: 4px;
}

.sim-success-card {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.7);
  background-color: var(--bg-surface-elevated);
  border: 2px solid var(--secondary);
  border-radius: 12px;
  padding: 24px;
  width: 80%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  z-index: 10;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
}

.sim-success-card.show {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}

.sim-success-icon {
  width: 48px;
  height: 48px;
  background-color: rgba(16, 185, 129, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--secondary);
}

/* Simulation 2: POS Touch Screen */
.sim-pos-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 10px;
  height: calc(100% - 32px);
}

.sim-pos-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.sim-pos-card {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-size: 0.65rem;
  cursor: pointer;
  transition: border-color 0.2s;
}

.sim-pos-card.active {
  border-color: var(--primary);
  background-color: var(--primary-glow);
}

.sim-pos-card i {
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: 4px;
}

.sim-pos-cart {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  font-size: 0.65rem;
}

.sim-cart-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow: hidden;
}

.sim-cart-row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px dotted var(--border-color);
  padding-bottom: 4px;
}

.sim-pos-btn {
  background: var(--primary-gradient);
  color: white;
  border: none;
  border-radius: 4px;
  padding: 8px;
  font-weight: 700;
  text-align: center;
  font-size: 0.75rem;
}

/* Simulation 3: WhatsApp CRM */
.sim-whatsapp-window {
  width: 100%;
  height: 100%;
  background-color: hsl(220, 20%, 8%);
  display: flex;
  flex-direction: column;
}

.sim-wa-header {
  background-color: hsl(150, 60%, 15%);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border-color);
}

.sim-wa-avatar {
  width: 28px;
  height: 28px;
  background-color: hsl(150, 60%, 30%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.8rem;
}

.sim-wa-info h5 {
  font-size: 0.8rem;
  color: white;
  margin: 0;
}

.sim-wa-info span {
  font-size: 0.55rem;
  color: hsla(0, 0%, 100%, 0.7);
}

.sim-wa-chat {
  flex: 1;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 12px;
}

.sim-wa-msg {
  background-color: hsl(225, 10%, 15%);
  border: 1px solid var(--border-color);
  border-radius: 8px 8px 8px 0;
  padding: 10px;
  max-width: 85%;
  font-size: 0.7rem;
  color: var(--text-primary);
  line-height: 1.4;
  align-self: flex-start;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.4s ease;
}

.sim-wa-msg.sent {
  background-color: hsl(150, 40%, 20%);
  border-color: hsl(150, 40%, 25%);
  border-radius: 8px 8px 0 8px;
  align-self: flex-end;
}

.sim-wa-msg.show {
  opacity: 1;
  transform: translateY(0);
}

.sim-wa-invoice-bubble {
  border-top: 1px solid hsla(0, 0%, 100%, 0.1);
  margin-top: 8px;
  padding-top: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.sim-wa-invoice-bubble i {
  color: var(--secondary);
  font-size: 1.2rem;
}

.sim-wa-invoice-btn {
  background-color: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.6rem;
  text-decoration: none;
  font-weight: 600;
}

/* --- Responsive Desktop & Mobile Display --- */
section.showcase-devices {
  padding: 100px 24px;
  max-width: 1280px;
  margin: 0 auto;
}

.showcase-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
}

.showcase-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.showcase-content h2 {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.2;
}

.showcase-content p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.device-feature-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  list-style: none;
}

.device-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 1rem;
  color: var(--text-secondary);
}

.device-feature-list li i {
  color: var(--secondary);
  margin-top: 4px;
}

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

.desktop-mockup-wrapper {
  width: 100%;
  max-width: 500px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 8px;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.mobile-mockup-wrapper {
  position: absolute;
  bottom: -40px;
  right: -20px;
  width: 180px;
  background: var(--bg-surface);
  border: 4px solid var(--bg-surface-elevated);
  border-radius: 24px;
  padding: 6px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  z-index: 10;
}

.showcase-img {
  width: 100%;
  border-radius: 8px;
  display: block;
}

.mobile-mockup-wrapper .showcase-img {
  border-radius: 18px;
}

/* --- Interactive Demo Sandbox --- */
section.demo-sandbox {
  padding: 100px 24px;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

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

.sandbox-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  margin-top: 48px;
}

.sandbox-form {
  background-color: var(--bg-base);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-shadow: var(--shadow-md);
}

.sandbox-form h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input, .form-group select {
  font-family: var(--font-body);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-size: 0.9rem;
  transition: border-color var(--transition-fast);
}

.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: var(--primary);
}

.sandbox-preview {
  background-color: white;
  color: hsl(225, 30%, 15%);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 40px;
  font-family: var(--font-mono);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  aspect-ratio: 1 / 1.3;
  overflow-y: auto;
  border: 1px solid var(--border-color);
}

.invoice-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 2px solid hsl(225, 30%, 20%);
  padding-bottom: 20px;
}

.preview-logo h4 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: hsl(255, 85%, 55%);
}

.preview-logo p {
  font-size: 0.75rem;
  color: hsl(225, 15%, 50%);
}

.preview-meta {
  text-align: right;
  font-size: 0.75rem;
}

.preview-meta h5 {
  font-size: 1.1rem;
  font-weight: 700;
  color: hsl(225, 30%, 20%);
  margin-bottom: 4px;
}

.invoice-preview-addresses {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  font-size: 0.75rem;
  margin: 24px 0;
}

.address-block h6 {
  font-weight: 700;
  margin-bottom: 4px;
  color: hsl(225, 30%, 20%);
}

.invoice-preview-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  font-size: 0.75rem;
}

.invoice-preview-table th {
  background-color: hsl(225, 20%, 96%);
  font-weight: 700;
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid hsl(225, 20%, 85%);
  color: hsl(225, 30%, 20%);
}

.invoice-preview-table td {
  padding: 8px 12px;
  border-bottom: 1px solid hsl(225, 20%, 92%);
}

.invoice-preview-totals {
  width: 50%;
  align-self: flex-end;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.75rem;
  border-top: 2px solid hsl(225, 20%, 85%);
  padding-top: 12px;
}

.total-row {
  display: flex;
  justify-content: space-between;
}

.total-row.grand {
  font-size: 0.95rem;
  font-weight: 700;
  color: hsl(255, 85%, 55%);
}

.invoice-preview-footer {
  border-top: 1px solid hsl(225, 20%, 90%);
  padding-top: 16px;
  margin-top: 24px;
  text-align: center;
  font-size: 0.65rem;
  color: hsl(225, 10%, 60%);
}

/* --- Pricing Section --- */
section.pricing {
  padding: 100px 24px;
  max-width: 1280px;
  margin: 0 auto;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  align-items: stretch;
  margin-top: 48px;
}

.pricing-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.pricing-card.popular {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  background-color: var(--bg-surface-elevated);
}

.popular-badge {
  position: absolute;
  top: 20px;
  right: -30px;
  background: var(--primary-gradient);
  color: white;
  padding: 4px 30px;
  font-size: 0.75rem;
  font-weight: 700;
  transform: rotate(45deg);
  box-shadow: var(--shadow-sm);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--text-muted);
}

.pricing-card.popular:hover {
  border-color: var(--primary);
  box-shadow: 0 16px 48px -8px var(--primary-glow);
}

.pricing-header h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.pricing-header p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 28px;
}

.price-val {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: var(--text-primary);
}

.price-lbl {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 40px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.pricing-features li i {
  font-size: 1rem;
}

.pricing-features li i.fa-check-circle {
  color: var(--secondary);
}

.pricing-features li i.fa-times-circle {
  color: var(--text-muted);
  opacity: 0.5;
}

.pricing-action {
  width: 100%;
}

/* --- FAQ Accordion --- */
section.faq {
  padding: 100px 24px;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
}

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

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 48px;
}

.faq-item {
  border: 1px solid var(--border-color);
  background-color: var(--bg-base);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--text-muted);
}

.faq-question {
  width: 100%;
  padding: 24px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-question i {
  color: var(--text-muted);
  transition: transform var(--transition-normal);
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) ease-out;
}

.faq-answer-inner {
  padding: 0 24px 24px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- CTA Banner --- */
section.cta-banner {
  padding: 120px 24px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-container {
  max-width: 800px;
  margin: 0 auto;
  background: var(--primary-gradient);
  padding: 64px 32px;
  border-radius: var(--radius-lg);
  color: white;
  box-shadow: var(--shadow-lg), var(--shadow-primary);
  position: relative;
  overflow: hidden;
}

.cta-container::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.cta-container h2 {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
}

.cta-container p {
  font-size: 1.15rem;
  margin-bottom: 40px;
  opacity: 0.9;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.cta-buttons .btn-secondary {
  border-color: rgba(255, 255, 255, 0.4);
  color: white;
}

.cta-buttons .btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: white;
}

/* --- Footer --- */
footer.site-footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 80px 24px 40px;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 64px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 320px;
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 36px;
  height: 36px;
  background-color: var(--bg-base);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.social-link:hover {
  background-color: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateY(-2px);
}

.footer-column h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  border-top: 1px solid var(--border-color);
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: var(--primary);
}

/* --- Media Queries --- */
@media (max-width: 1024px) {
  .hero h1 { font-size: 2.8rem; }
  .tour-container { grid-template-columns: 1fr; gap: 48px; }
  .showcase-container { grid-template-columns: 1fr; gap: 48px; }
  .devices-visual { max-width: 500px; margin: 0 auto; }
  .sandbox-layout { grid-template-columns: 1fr; gap: 32px; }
  .footer-container { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero h1 { font-size: 2.3rem; }
  .hero-subtitle { font-size: 1.1rem; }
  .section-header h2 { font-size: 2.1rem; }
  .tour-info h2 { font-size: 2.1rem; }
  .showcase-content h2 { font-size: 2.1rem; }
  .cta-container h2 { font-size: 2.2rem; }
  .footer-container { grid-template-columns: 1fr; gap: 32px; }
  .printing-layout { grid-template-columns: 1fr; gap: 48px; }
  .gallery-sub-grid { grid-template-columns: 1fr; gap: 16px; }
}

/* --- Printing Engine Showcase Section --- */
section.printing-engine {
  padding: 100px 24px;
  max-width: 1280px;
  margin: 0 auto;
}

.printing-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 80px;
  align-items: center;
}

.printing-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.printing-content h2 {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.2;
}

.printing-content p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.printing-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.printing-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.printing-feature-item i {
  color: var(--secondary);
  font-size: 1.25rem;
  margin-top: 4px;
}

.printing-feature-item h4 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.printing-feature-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* Printing Gallery Grid */
.printing-gallery {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.gallery-main-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 8px;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-normal);
}

.gallery-main-card:hover {
  transform: translateY(-4px);
}

.gallery-sub-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.gallery-sub-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 8px;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.gallery-sub-card:hover {
  transform: translateY(-4px);
}

.gallery-img {
  width: 100%;
  border-radius: 8px;
  display: block;
  object-fit: cover;
}

.gallery-card-lbl {
  padding: 10px 4px 4px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
}

/* --- Media Queries for Printing Engine (Appended at the end to override base styles) --- */
@media (max-width: 1024px) {
  .printing-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .printing-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .gallery-sub-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}