:root {
  /* Color System */
  --bg-primary: #08090E;
  --bg-secondary: #0E111A;
  --bg-tertiary: #151926;
  --bg-card: rgba(18, 22, 36, 0.7);
  --bg-card-hover: rgba(26, 32, 52, 0.85);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(168, 85, 247, 0.35);
  --border-strong: rgba(255, 255, 255, 0.16);

  /* Brand Accents */
  --accent-purple: #8B5CF6;
  --accent-indigo: #6366F1;
  --accent-pink: #EC4899;
  --accent-cyan: #06B6D4;
  --accent-emerald: #10B981;
  --accent-amber: #F59E0B;

  --gradient-brand: linear-gradient(135deg, #8B5CF6 0%, #6366F1 50%, #EC4899 100%);
  --gradient-glow: radial-gradient(circle, rgba(139, 92, 246, 0.28) 0%, rgba(99, 102, 241, 0.12) 40%, transparent 70%);
  --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.01) 100%);

  /* Typography Colors */
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-tertiary: #64748B;
  --text-accent: #C084FC;

  /* Layout & Radii */
  --max-width: 1200px;
  --header-height: 72px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Transition */
  --transition-fast: 0.18s ease;
  --transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(120, 80, 240, 0.22), transparent 75%),
    radial-gradient(ellipse 60% 40% at 85% 40%, rgba(236, 72, 153, 0.1), transparent 60%),
    radial-gradient(ellipse 60% 40% at 15% 70%, rgba(6, 182, 212, 0.08), transparent 60%),
    var(--bg-primary);
}

/* Accessible focus ring */
:focus-visible {
  outline: 2px solid var(--accent-purple);
  outline-offset: 3px;
}

/* Typography Helpers */
h1, h2, h3, h4 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
}

p {
  color: var(--text-secondary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: var(--radius-full);
  color: var(--text-accent);
  font-size: 0.825rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

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

/* Buttons & CTAs */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--gradient-brand);
  color: #FFFFFF;
  box-shadow: 0 0 24px rgba(139, 92, 246, 0.45);
}

.btn-primary:hover {
  box-shadow: 0 0 32px rgba(139, 92, 246, 0.7);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border-color: var(--border-subtle);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
}

.btn-icon-right svg {
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon-right svg {
  transform: translateX(3px);
}

/* Navigation Bar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(8, 9, 14, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-smooth), border-color var(--transition-smooth);
}

.navbar.scrolled {
  background: rgba(8, 9, 14, 0.92);
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #FFFFFF;
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px rgba(139, 92, 246, 0.5);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.925rem;
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  padding: 0.4rem 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-brand);
  transition: width var(--transition-smooth);
  border-radius: 2px;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-cta-wrapper {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Mobile Nav Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
}

/* Hero Section */
.hero {
  padding: 4.5rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.hero-content {
  text-align: center;
  max-width: 860px;
  margin: 0 auto 3.5rem;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 0.4rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  backdrop-filter: blur(8px);
}

.hero-pill-badge {
  background: var(--gradient-brand);
  color: #FFFFFF;
  font-size: 0.725rem;
  font-weight: 700;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
}

.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 2.25rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Hero Visual: Product Panel Mockup */
.hero-mockup-wrapper {
  position: relative;
  max-width: 1060px;
  margin: 0 auto;
}

.mockup-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 30%, rgba(139, 92, 246, 0.35), rgba(236, 72, 153, 0.15), transparent 70%);
  filter: blur(50px);
  z-index: 0;
  transform: translateY(20px);
  opacity: 0.8;
  pointer-events: none;
}

.mockup-frame {
  position: relative;
  z-index: 1;
  background: var(--bg-secondary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: 
    0 24px 60px -12px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(255, 255, 255, 0.05),
    inset 0 1px 1px rgba(255, 255, 255, 0.15);
  overflow: hidden;
}

.mockup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  background: rgba(14, 17, 26, 0.95);
  border-bottom: 1px solid var(--border-subtle);
}

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

.mockup-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
}
.mockup-dot.red { background: #FF5F56; }
.mockup-dot.yellow { background: #FFBD2E; }
.mockup-dot.green { background: #27C93F; }

.mockup-titlebar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.825rem;
  color: var(--text-tertiary);
  font-weight: 500;
  background: rgba(0, 0, 0, 0.25);
  padding: 0.25rem 0.85rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
}

.status-indicator {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 0.6; }
  50% { opacity: 1; }
  100% { opacity: 0.6; }
}

.mockup-body {
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 310px 1fr;
  gap: 1.25rem;
  background: #0B0E17;
}

/* Mockup Sidebar - Identity & Entities */
.mockup-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.agent-profile-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.15rem;
  position: relative;
}

.agent-avatar-wrap {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 0.85rem;
}

.agent-avatar {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  box-shadow: 0 0 16px rgba(139, 92, 246, 0.4);
}

.agent-meta h4 {
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.agent-meta span {
  font-size: 0.775rem;
  color: var(--accent-emerald);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.agent-entity-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.entity-chip {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.6rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.775rem;
  color: var(--text-secondary);
}

.entity-chip-icon {
  color: var(--accent-purple);
  display: flex;
}

/* Offline state indicator */
.offline-banner {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  font-size: 0.785rem;
  color: #A7F3D0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Mockup Main Workspace */
.mockup-main {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.workspace-feed {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.15rem;
  flex: 1;
}

.feed-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.feed-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feed-items {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.feed-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent-purple);
  font-size: 0.825rem;
}

.feed-item.approval {
  border-left-color: var(--accent-amber);
  background: rgba(245, 158, 11, 0.05);
}

.feed-item-icon {
  margin-top: 2px;
  flex-shrink: 0;
}

.feed-item-content {
  flex: 1;
}

.feed-item-time {
  font-size: 0.725rem;
  color: var(--text-tertiary);
  margin-top: 0.25rem;
}

.feed-action-bar {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.badge-pending {
  padding: 0.2rem 0.5rem;
  background: rgba(245, 158, 11, 0.15);
  color: #FCD34D;
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 4px;
  font-size: 0.725rem;
  font-weight: 600;
}

.badge-success {
  padding: 0.2rem 0.5rem;
  background: rgba(16, 185, 129, 0.15);
  color: #6EE7B7;
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 4px;
  font-size: 0.725rem;
  font-weight: 600;
}

/* SECTION: Four Core Identities */
.section-identity {
  padding: 6rem 0;
  position: relative;
}

.identity-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.identity-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  transition: transform var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.identity-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-card);
  pointer-events: none;
}

.identity-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-highlight);
  box-shadow: 0 16px 36px -10px rgba(139, 92, 246, 0.2);
}

.identity-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}

.icon-purple {
  background: rgba(139, 92, 246, 0.15);
  color: #C084FC;
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.icon-pink {
  background: rgba(236, 72, 153, 0.15);
  color: #F472B6;
  border: 1px solid rgba(236, 72, 153, 0.3);
}

.icon-cyan {
  background: rgba(6, 182, 212, 0.15);
  color: #38BDF8;
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.icon-indigo {
  background: rgba(99, 102, 241, 0.15);
  color: #818CF8;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.identity-name {
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
  position: relative;
  z-index: 1;
}

.identity-label {
  font-size: 0.775rem;
  color: var(--accent-purple);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  display: block;
}

.identity-desc {
  font-size: 0.925rem;
  line-height: 1.6;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
  flex: 1;
}

.identity-meta {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* SECTION: Workflows & Collaboration */
.section-workflows {
  padding: 6rem 0;
  background: linear-gradient(180deg, transparent, rgba(14, 17, 26, 0.5) 50%, transparent);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.feature-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition-smooth), transform var(--transition-smooth);
}

.feature-box:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.feature-top {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.feature-icon-badge {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
}

.feature-title {
  font-size: 1.35rem;
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

/* Mini visual within feature cards */
.feature-visual {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  font-size: 0.825rem;
}

.visual-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.visual-row:last-child {
  border-bottom: none;
}

/* SECTION: Control & Permissions (Autonomy + Human In The Loop) */
.section-control {
  padding: 6rem 0;
}

.control-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.control-info h2 {
  font-size: clamp(2rem, 3vw, 2.5rem);
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.control-info p {
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 1.75rem;
}

.control-check-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
  list-style: none;
}

.control-check-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.check-icon {
  color: var(--accent-emerald);
  margin-top: 3px;
  flex-shrink: 0;
}

/* Interactive Control Panel Demo */
.interactive-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.6);
  position: relative;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.panel-title {
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.panel-setting-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 0.85rem;
  transition: background var(--transition-fast);
}

.panel-setting-item:hover {
  background: rgba(255, 255, 255, 0.04);
}

.setting-meta h4 {
  font-size: 0.925rem;
  margin-bottom: 0.2rem;
}

.setting-meta p {
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

/* Toggle Switch Control */
.toggle-wrap {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.toggle-label {
  font-size: 0.775rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.toggle-btn {
  width: 44px;
  height: 24px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  position: relative;
  transition: background var(--transition-fast);
  padding: 2px;
}

.toggle-btn::after {
  content: '';
  display: block;
  width: 20px;
  height: 20px;
  background: #FFFFFF;
  border-radius: 50%;
  transition: transform var(--transition-fast);
}

.toggle-btn.active {
  background: var(--accent-purple);
}

.toggle-btn.active::after {
  transform: translateX(20px);
}

.offline-demo-card {
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(139, 92, 246, 0.06);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.offline-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(139, 92, 246, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-purple);
  flex-shrink: 0;
}

/* SECTION: Interactive Capability Showcase */
.section-showcase {
  padding: 6rem 0;
  background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.1), transparent 70%);
}

.showcase-tabs {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.showcase-tab {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

.showcase-tab:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
}

.showcase-tab.active {
  background: var(--gradient-brand);
  color: #FFFFFF;
  border-color: transparent;
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.4);
}

.showcase-content-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  max-width: 920px;
  margin: 0 auto;
  min-height: 280px;
  transition: opacity var(--transition-smooth);
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.tab-info h3 {
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
}

.tab-info p {
  font-size: 0.975rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.tab-badge-list {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tab-badge {
  font-size: 0.775rem;
  padding: 0.25rem 0.65rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-accent);
}

.tab-preview-card {
  background: #0B0E17;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  font-size: 0.85rem;
}

/* SECTION: FAQ */
.section-faq {
  padding: 6rem 0;
}

.faq-list {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.18);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 1.25rem 1.5rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--text-accent);
}

.faq-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  transition: transform var(--transition-smooth);
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
  color: var(--accent-purple);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.3s ease;
  padding: 0 1.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 1.5rem 1.5rem;
}

/* SECTION: Bottom CTA Banner */
.section-cta-banner {
  padding: 5rem 0 6rem;
  position: relative;
}

.cta-box {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(99, 102, 241, 0.15) 50%, rgba(236, 72, 153, 0.15) 100%);
  border: 1px solid rgba(168, 85, 247, 0.3);
  border-radius: var(--radius-lg);
  padding: 4rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px -15px rgba(139, 92, 246, 0.3);
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(139, 92, 246, 0.4), transparent 70%);
  pointer-events: none;
}

.cta-box h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.cta-box p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2.25rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: #05060A;
  padding: 4rem 0 2.5rem;
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-brand {
  max-width: 320px;
}

.footer-brand p {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.6;
}

.footer-nav-groups {
  display: flex;
  gap: 3.5rem;
  flex-wrap: wrap;
}

.footer-group h4 {
  font-size: 0.875rem;
  color: var(--text-primary);
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}

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

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  flex-wrap: wrap;
  gap: 1rem;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .identity-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .mockup-body {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(8, 9, 14, 0.98);
    border-bottom: 1px solid var(--border-subtle);
    padding: 1.5rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }
  
  .nav-links.is-open {
    display: flex;
  }

  .mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .identity-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .control-wrapper {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .tab-pane.active {
    grid-template-columns: 1fr;
  }

  .footer-top {
    flex-direction: column;
  }

  .footer-nav-groups {
    gap: 2rem;
  }
}

@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;
  }
}