/* ==========================================================================
   Infogate Telematics — Commercial Presentation Design System
   Modern Dark Aesthetic, Cyber Glow Accents, Ultra-Fast Vanilla CSS
   ========================================================================== */

:root {
  --bg-primary: #070a12;
  --bg-secondary: #0d1322;
  --bg-card: rgba(16, 24, 40, 0.75);
  --bg-card-hover: rgba(24, 35, 58, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.03);

  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 210, 255, 0.3);
  --border-security: rgba(16, 185, 129, 0.35);

  --text-main: #f0f4fc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;

  --accent-cyan: #00d2ff;
  --accent-blue: #3a86ff;
  --accent-green: #10b981;
  --accent-purple: #8b5cf6;
  --accent-amber: #f59e0b;
  --accent-danger: #ef4444;

  --gradient-brand: linear-gradient(135deg, #00d2ff 0%, #3a86ff 50%, #8b5cf6 100%);
  --gradient-security: linear-gradient(135deg, #10b981 0%, #00d2ff 100%);
  --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0) 100%);
  --shadow-glow: 0 0 35px rgba(0, 210, 255, 0.15);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);

  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 9999px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  overflow-x: hidden;
  background: radial-gradient(circle at 50% 0%, #152238 0%, #070a12 70%);
  min-height: 100vh;
}

/* Background Ambient Orbs */
.ambient-glow {
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 210, 255, 0.12) 0%, rgba(58, 134, 255, 0.06) 40%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(7, 10, 18, 0.85);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
}

.nav-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: var(--gradient-brand);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 0 20px rgba(0, 210, 255, 0.4);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--transition);
}

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

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 210, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(0, 210, 255, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border-color: var(--border-color);
}

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

.btn-security {
  background: rgba(16, 185, 129, 0.15);
  color: #a7f3d0;
  border-color: rgba(16, 185, 129, 0.3);
}

.btn-security:hover {
  background: rgba(16, 185, 129, 0.25);
  border-color: #10b981;
  color: #fff;
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.25);
  border-color: #ef4444;
  color: #fff;
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.85rem;
}

/* Container */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* Section Common */
section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3.5rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: rgba(0, 210, 255, 0.1);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 210, 255, 0.25);
  margin-bottom: 1rem;
}

.badge-live {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-green);
  border-color: rgba(16, 185, 129, 0.25);
}

.badge-security {
  background: rgba(16, 185, 129, 0.12);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-green);
  animation: pulse-ring 1.8s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  line-height: 1.2;
}

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

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

.section-desc {
  font-size: 1.15rem;
  color: var(--text-muted);
}

/* Hero Section */
.hero {
  padding: 4.5rem 0 3rem;
  text-align: center;
}

.hero-content {
  max-width: 950px;
  margin: 0 auto 3.5rem;
}

.hero-badges-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 760px;
  margin: 0 auto 2.5rem;
  font-weight: 400;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.hero-highlights {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  color: var(--text-subtle);
  font-size: 0.9rem;
  flex-wrap: wrap;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Security Trust Banner */
.security-banner {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.08) 0%, rgba(0, 210, 255, 0.04) 100%);
  border: 1px solid var(--border-security);
  border-radius: var(--radius-md);
  padding: 1.25rem 2rem;
  margin: 2.5rem auto 0;
  max-width: 1040px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  text-align: left;
}

.sec-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.sec-icon {
  font-size: 2rem;
  background: rgba(16, 185, 129, 0.15);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(16, 185, 129, 0.3);
  flex-shrink: 0;
}

.sec-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ecfdf5;
}

.sec-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.sec-badges {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.sec-tag {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.3rem 0.65rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  color: #cbd5e1;
}

/* Interactive Simulator Window */
.demo-window {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  overflow: hidden;
  position: relative;
  text-align: left;
}

.window-header {
  background: rgba(10, 15, 26, 0.9);
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
}

.window-controls {
  display: flex;
  gap: 6px;
}

.window-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

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

.simulator-body {
  display: grid;
  grid-template-columns: 280px 1fr 340px;
  min-height: 520px;
}

/* Fleet List Sidebar */
.sim-sidebar {
  background: rgba(13, 19, 34, 0.95);
  border-right: 1px solid var(--border-color);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.sim-sidebar-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-subtle);
  font-weight: 700;
}

.vehicle-selector {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.vehicle-card {
  padding: 0.85rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.vehicle-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(0, 210, 255, 0.3);
}

.vehicle-card.active {
  background: rgba(0, 210, 255, 0.08);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 210, 255, 0.2);
}

.vehicle-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.vehicle-plate {
  font-family: monospace;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-main);
  background: #000;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.vehicle-status {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
}

.status-moving {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
}

.status-idle {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
}

.status-locked {
  background: rgba(239, 68, 68, 0.15);
  color: var(--accent-danger);
}

.vehicle-model {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.vehicle-driver {
  font-size: 0.75rem;
  color: var(--text-subtle);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* Map Canvas Area */
.sim-map-area {
  position: relative;
  background: #090e18;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

#simulator-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.map-overlay-badges {
  position: absolute;
  top: 1rem;
  left: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.map-badge {
  background: rgba(10, 15, 26, 0.85);
  border: 1px solid var(--border-color);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Telemetry Gauges Sidebar */
.sim-telemetry {
  background: rgba(13, 19, 34, 0.95);
  border-left: 1px solid var(--border-color);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  overflow-y: auto;
}

.telemetry-group-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-subtle);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gauges-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.gauge-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.gauge-label {
  font-size: 0.75rem;
  color: var(--text-subtle);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.gauge-value {
  font-size: 1.35rem;
  font-weight: 800;
  font-family: monospace;
  color: var(--text-main);
}

.gauge-unit {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-muted);
}

/* Fuel Progress Bar */
.fuel-gauge {
  grid-column: span 2;
}

.progress-track {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-top: 0.35rem;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #ef4444 0%, #f59e0b 35%, #10b981 100%);
  width: 78%;
  border-radius: var(--radius-full);
  transition: width 0.4s ease;
}

/* Immobilizer Control Box */
.immobilizer-box {
  background: rgba(239, 68, 68, 0.05);
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.immobilizer-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: #f87171;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.immobilizer-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ==========================================================================
   ROLE-BASED MODULES SECTION (Fleet Manager & Logistics Dispatcher)
   ========================================================================== */
.roles-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.role-switcher-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.role-tab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.role-tab-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--text-main);
}

.role-tab-btn.active {
  background: rgba(0, 210, 255, 0.1);
  border-color: var(--accent-cyan);
  color: #fff;
  box-shadow: 0 0 20px rgba(0, 210, 255, 0.25);
}

.role-content-panel {
  display: none !important;
  animation: fadeIn 0.3s ease;
}

.role-content-panel.active {
  display: block !important;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.role-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
}

.role-tagline {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}

.role-heading {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.25;
}

.role-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}

.role-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.role-feature-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.role-feat-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(0, 210, 255, 0.12);
  border: 1px solid rgba(0, 210, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.role-feat-title {
  font-weight: 700;
  color: var(--text-main);
  font-size: 0.95rem;
}

.role-feat-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

/* Mock Dashboard Window for Roles */
.role-mockup-window {
  background: #090e1a;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
}

.mockup-header {
  background: rgba(15, 23, 42, 0.9);
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.mockup-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  font-size: 0.85rem;
}

.mockup-row {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.badge-alert {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
}

.badge-ok {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
}

/* ==========================================================================
   ON-PREMISE SECURITY & PRIVACY SECTION (ISO 27001)
   ========================================================================== */
.security-section {
  padding: 5rem 0;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.security-card {
  background: var(--bg-card);
  border: 1px solid var(--border-security);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.security-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 30px rgba(16, 185, 129, 0.2);
  border-color: var(--accent-green);
}

.security-card-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-sm);
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.feature-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: rgba(0, 210, 255, 0.1);
  border: 1px solid rgba(0, 210, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 1.25rem;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.feature-list li {
  font-size: 0.85rem;
  color: var(--text-subtle);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feature-list li span {
  color: var(--accent-cyan);
  font-weight: bold;
}

/* Hardware Section */
.hardware-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.hardware-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
}

.hardware-badge {
  display: inline-block;
  background: rgba(139, 92, 246, 0.15);
  color: #c4b5fd;
  border: 1px solid rgba(139, 92, 246, 0.3);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.specs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.spec-item {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  padding: 0.85rem;
  border-radius: var(--radius-sm);
}

.spec-name {
  font-size: 0.8rem;
  color: var(--text-subtle);
}

.spec-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 0.2rem;
}

.hardware-visual {
  background: radial-gradient(circle, rgba(0, 210, 255, 0.1) 0%, transparent 70%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  text-align: center;
  position: relative;
}

.chip-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.chip-box {
  width: 140px;
  height: 140px;
  background: #0f172a;
  border: 2px solid var(--accent-cyan);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 30px rgba(0, 210, 255, 0.3);
  position: relative;
}

.chip-label {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

.chip-sub {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* ROI Calculator */
.calc-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.slider-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.slider-label {
  font-size: 0.95rem;
  font-weight: 600;
}

.slider-val {
  font-family: monospace;
  font-weight: 700;
  color: var(--accent-cyan);
  font-size: 1.1rem;
}

input[type="range"] {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 5px;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  cursor: pointer;
  transition: transform 0.1s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.savings-display {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(0, 210, 255, 0.05) 100%);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
}

.savings-title {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.savings-amount {
  font-size: 3rem;
  font-weight: 900;
  color: var(--accent-green);
  font-family: monospace;
  margin-bottom: 0.5rem;
}

.savings-sub {
  font-size: 0.85rem;
  color: var(--text-subtle);
  margin-bottom: 1.5rem;
}

.savings-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1.5rem;
}

.metric-box {
  text-align: center;
}

.metric-val {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-subtle);
}

/* ==========================================================================
   PRICING & MODULAR ADD-ONS SECTION
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

.pricing-card.popular {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 35px rgba(0, 210, 255, 0.2);
  transform: scale(1.03);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-brand);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.85rem;
  border-radius: var(--radius-full);
}

.tier-name {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.tier-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  min-height: 40px;
}

.tier-price {
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.tier-price span {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-muted);
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.pricing-features li {
  font-size: 0.9rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.pricing-features li.included {
  color: var(--text-main);
}

.pricing-features li.included::before {
  content: "✓";
  color: var(--accent-green);
  font-weight: bold;
}

.pricing-features li.disabled {
  color: var(--text-subtle);
  opacity: 0.5;
}

.pricing-features li.disabled::before {
  content: "✕";
  color: var(--text-subtle);
}

/* Modular Add-on Packages Box */
.addons-box {
  background: linear-gradient(135deg, rgba(24, 35, 58, 0.7) 0%, rgba(13, 19, 34, 0.9) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.addons-header {
  text-align: center;
  margin-bottom: 2rem;
}

.addons-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
}

.addons-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

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

.addon-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: var(--transition);
}

.addon-card:hover {
  border-color: var(--accent-cyan);
  background: rgba(255, 255, 255, 0.05);
}

.addon-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.addon-icon {
  font-size: 1.5rem;
}

.addon-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  background: rgba(0, 210, 255, 0.1);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 210, 255, 0.25);
}

.addon-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.addon-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.addon-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-subtle);
}

.addon-features li {
  display: flex;
  gap: 0.4rem;
}

.addon-features li::before {
  content: "•";
  color: var(--accent-cyan);
}

/* Contact Form Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-top: 1.5rem;
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(0, 210, 255, 0.1);
  border: 1px solid rgba(0, 210, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(10, 15, 26, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 210, 255, 0.25);
}

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

.form-status {
  padding: 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #a7f3d0;
}

.form-status.error {
  display: block;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
  background: var(--bg-secondary);
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  margin-top: 1rem;
  color: var(--text-subtle);
  max-width: 320px;
}

.footer-col h4 {
  color: var(--text-main);
  font-size: 1rem;
  margin-bottom: 1.25rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

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

.footer-col a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-subtle);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .simulator-body {
    grid-template-columns: 1fr;
  }
  .sim-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
  .sim-telemetry {
    border-left: none;
    border-top: 1px solid var(--border-color);
  }
  .role-layout,
  .hardware-card,
  .calc-card,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .security-banner {
    flex-direction: column;
    align-items: flex-start;
  }
  .pricing-card.popular {
    transform: none;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-title {
    font-size: 2.35rem;
  }
  .section-title {
    font-size: 2rem;
  }
  .role-switcher-tabs {
    flex-direction: column;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}