/* ============================================
   Antigravity Race Engine - Marketing Site CSS
   Modern Stripe-inspired Design System
   ============================================ */

/* CSS Custom Properties */
:root {
  /* Primary Colors - Deep Purple to Electric Blue gradient */
  --primary-100: #f3e8ff;
  --primary-200: #e9d5ff;
  --primary-300: #d8b4fe;
  --primary-400: #c084fc;
  --primary-500: #a855f7;
  --primary-600: #9333ea;
  --primary-700: #7c3aed;

  /* Accent - Electric Cyan */
  --accent-400: #22d3ee;
  --accent-500: #06b6d4;
  --accent-600: #0891b2;

  /* Neutrals - Base palette */
  --gray-50: #fafafa;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-300: #d4d4d4;
  --gray-400: #a3a3a3;
  --gray-500: #737373;
  --gray-600: #525252;
  --gray-700: #404040;
  --gray-800: #262626;
  --gray-900: #171717;
  --gray-950: #0a0a0a;

  /* Semantic Colors */
  --success-500: #22c55e;
  --warning-500: #f59e0b;
  --error-500: #ef4444;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-glow: 0 0 40px rgba(168, 85, 247, 0.15);
  --shadow-glow-accent: 0 0 40px rgba(6, 182, 212, 0.2);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;

  /* Z-indexes */
  --z-dropdown: 100;
  --z-header: 200;
  --z-modal: 300;

  /* Theme-specific variables (dark mode default) */
  --bg-body: var(--gray-950);
  --bg-surface: var(--gray-900);
  --bg-elevated: var(--gray-800);
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.05);
  --bg-header: rgba(10, 10, 10, 0.8);
  --border-subtle: rgba(255, 255, 255, 0.05);
  --border-default: rgba(255, 255, 255, 0.1);
  --text-primary: white;
  --text-secondary: var(--gray-200);
  --text-muted: var(--gray-400);
  --text-subtle: var(--gray-500);
  --grid-color: rgba(255, 255, 255, 0.02);
}

/* Light mode theme */
[data-theme="light"] {
  --bg-body: #ffffff;
  --bg-surface: var(--gray-50);
  --bg-elevated: var(--gray-100);
  --bg-card: rgba(0, 0, 0, 0.02);
  --bg-card-hover: rgba(0, 0, 0, 0.04);
  --bg-header: rgba(255, 255, 255, 0.9);
  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-default: rgba(0, 0, 0, 0.15);
  --text-primary: var(--gray-950);
  --text-secondary: var(--gray-800);
  --text-muted: var(--gray-700);
  --text-subtle: var(--gray-600);
  --grid-color: rgba(0, 0, 0, 0.03);
  --shadow-glow: 0 0 40px rgba(168, 85, 247, 0.1);
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
  background: var(--bg-body);
  overflow-x: hidden;
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* ============================================
   Typography
   ============================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

h4 {
  font-size: 1.125rem;
}

p {
  color: var(--gray-400);
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary-400), var(--accent-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-sm {
  font-size: 0.875rem;
}

.text-lg {
  font-size: 1.125rem;
}

.text-xl {
  font-size: 1.25rem;
}

/* ============================================
   Layout
   ============================================ */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

section {
  padding: var(--space-24) 0;
  position: relative;
}

/* ============================================
   Background Effects
   ============================================ */

.bg-grid {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: -1;
}

.bg-gradient-radial {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1400px;
  height: 800px;
  background: radial-gradient(ellipse at center top, rgba(124, 58, 237, 0.15) 0%, transparent 60%);
  pointer-events: none;
  z-index: -1;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  pointer-events: none;
  animation: blob-float 20s ease-in-out infinite;
}

.blob-1 {
  width: 500px;
  height: 500px;
  background: var(--primary-600);
  top: -200px;
  left: -100px;
}

.blob-2 {
  width: 400px;
  height: 400px;
  background: var(--accent-500);
  top: 100px;
  right: -100px;
  animation-delay: -5s;
}

.blob-3 {
  width: 350px;
  height: 350px;
  background: var(--primary-500);
  bottom: -100px;
  left: 30%;
  animation-delay: -10s;
}

@keyframes blob-float {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  25% {
    transform: translate(20px, -20px) scale(1.05);
  }

  50% {
    transform: translate(-10px, 10px) scale(0.95);
  }

  75% {
    transform: translate(15px, 15px) scale(1.02);
  }
}

/* ============================================
   Header & Navigation
   ============================================ */

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  padding: var(--space-4) 0;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.25rem;
  color: white;
}

[data-theme="light"] .logo {
  color: var(--gray-900);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: transparent;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg {
  width: 24px;
  height: 24px;
  color: white;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav-links a {
  color: var(--gray-400);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: white;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Light mode header adjustments */
[data-theme="light"] header {
  background: rgba(255, 255, 255, 0.9);
  border-bottom-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .nav-links a {
  color: var(--gray-600);
}

[data-theme="light"] .nav-links a:hover {
  color: var(--gray-900);
}

[data-theme="light"] .theme-toggle svg {
  color: var(--gray-600);
}

[data-theme="light"] .theme-toggle:hover svg {
  color: var(--gray-900);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  color: white;
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(124, 58, 237, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

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

[data-theme="light"] .btn-secondary {
  background: rgba(0, 0, 0, 0.03);
  color: var(--gray-800);
  border-color: rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .btn-secondary:hover {
  background: rgba(0, 0, 0, 0.06);
  border-color: rgba(0, 0, 0, 0.25);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent-500), var(--accent-600));
  color: white;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.4);
}

.btn-large {
  padding: var(--space-4) var(--space-8);
  font-size: 1rem;
}

.btn-icon {
  width: 20px;
  height: 20px;
}

/* Theme Toggle Button */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.theme-toggle svg {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.theme-toggle:hover svg {
  color: var(--text-primary);
}

/* Show sun in dark mode, moon in light mode */
.icon-moon {
  display: none;
}

[data-theme="light"] .icon-sun {
  display: none;
}

[data-theme="light"] .icon-moon {
  display: block;
}

[data-theme="light"] .theme-toggle {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .theme-toggle:hover {
  background: rgba(0, 0, 0, 0.1);
  border-color: rgba(0, 0, 0, 0.2);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--space-32);
  padding-bottom: var(--space-20);
  overflow: hidden;
}

.hero-content {
  max-width: 800px;
  text-align: center;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(168, 85, 247, 0.1);
  border: 1px solid rgba(168, 85, 247, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: var(--primary-300);
  margin-bottom: var(--space-6);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--success-500);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(1.2);
  }
}

.hero h1 {
  margin-bottom: var(--space-6);
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: var(--gray-400);
  max-width: 600px;
  margin: 0 auto var(--space-8);
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

.hero-visual {
  margin-top: var(--space-16);
  position: relative;
}

.hero-dashboard {
  background: linear-gradient(180deg, var(--gray-800) 0%, var(--gray-900) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-2xl);
  padding: var(--space-1);
  box-shadow:
    var(--shadow-xl),
    var(--shadow-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  overflow: hidden;
}

.dashboard-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--gray-800);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.dashboard-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dashboard-dot.red {
  background: #ff5f57;
}

.dashboard-dot.yellow {
  background: #febc2e;
}

.dashboard-dot.green {
  background: #28c840;
}

.dashboard-content {
  padding: var(--space-6);
  background: var(--gray-900);
  min-height: 300px;
  display: flex;
  gap: var(--space-4);
}

.dashboard-sidebar {
  width: 200px;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.sidebar-item {
  padding: var(--space-2) var(--space-3);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--gray-400);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.sidebar-item.active {
  background: rgba(124, 58, 237, 0.2);
  color: var(--primary-300);
}

.sidebar-icon {
  width: 16px;
  height: 16px;
  opacity: 0.6;
}

.dashboard-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.stat-row {
  display: flex;
  gap: var(--space-4);
}

.stat-card {
  flex: 1;
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-lg);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-1);
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 600;
  color: white;
  font-family: var(--font-mono);
}

.stat-value.highlight {
  color: var(--success-500);
}

.leaderboard {
  flex: 1;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.leaderboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.leaderboard-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: white;
}

.leaderboard-badge {
  font-size: 0.75rem;
  padding: var(--space-1) var(--space-2);
  background: var(--success-500);
  color: white;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.leaderboard-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: 0.875rem;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1),
    opacity 0.3s ease,
    background-color 0.3s ease;
  position: relative;
}

.leaderboard-row.position-changed {
  background-color: rgba(168, 85, 247, 0.1);
}

.leaderboard-row .lap-time.new-time {
  color: var(--accent-400);
  animation: flashTime 1s ease;
}

@keyframes flashTime {
  0% {
    color: var(--success-500);
    transform: scale(1.1);
  }

  100% {
    color: var(--gray-400);
    transform: scale(1);
  }
}

.position {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--gray-400);
  transition: all 0.3s ease;
}

.position.first {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  color: var(--gray-900);
}

.position.second {
  background: linear-gradient(135deg, #9ca3af, #6b7280);
  color: white;
}

.position.third {
  background: linear-gradient(135deg, #d97706, #b45309);
  color: white;
}

.driver-name {
  flex: 1;
  color: white;
}

.lap-time {
  font-family: var(--font-mono);
  color: var(--gray-400);
  min-width: 70px;
  transition: color 0.3s ease, transform 0.3s ease;
}

/* Last lap time color coding */
.lap-time.personal-best {
  color: var(--success-500);
  /* Green - personal best */
}

.lap-time.overall-best {
  color: var(--primary-400);
  /* Purple - overall fastest */
}

.gap {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gray-500);
  min-width: 60px;
  text-align: right;
  transition: color 0.3s ease;
}

/* Best lap time column */
.best-time {
  font-family: var(--font-mono);
  color: var(--gray-200);
  transition: color 0.3s ease, transform 0.3s ease;
}

.best-time.new-best {
  color: var(--success-500);
  animation: flashBest 1s ease;
}

@keyframes flashBest {
  0% {
    color: #22c55e;
    transform: scale(1.15);
    text-shadow: 0 0 8px rgba(34, 197, 94, 0.6);
  }

  100% {
    color: var(--primary-300);
    transform: scale(1);
    text-shadow: none;
  }
}

/* Leaderboard header row */
.leaderboard-header-row {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: var(--space-2);
  padding-bottom: var(--space-2);
}

.leaderboard-header-row span {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gray-500);
}

.position-header {
  width: 24px;
  text-align: center;
}

.driver-name-header {
  flex: 1;
}

.lap-time-header {
  font-family: var(--font-mono);
  min-width: 70px;
}

.best-time-header {
  font-family: var(--font-mono);
}

.gap-header {
  min-width: 60px;
  text-align: right;
}

/* Session status pulse animation */
#session-status {
  animation: statusPulse 3s ease-in-out infinite;
}

@keyframes statusPulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}

/* LIVE badge pulse */
#live-badge {
  animation: livePulse 2s ease-in-out infinite;
}

@keyframes livePulse {

  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4);
  }

  50% {
    opacity: 0.9;
    box-shadow: 0 0 8px 2px rgba(34, 197, 94, 0.3);
  }
}

/* ============================================
   Social Proof / Trusted By Section
   ============================================ */

.social-proof {
  padding: var(--space-12) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.social-proof-label {
  text-align: center;
  font-size: 0.875rem;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-8);
}

.logo-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-12);
  flex-wrap: wrap;
}

.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 120px;
  height: 48px;
  opacity: 0.5;
  transition: opacity var(--transition-base);
}

.partner-logo:hover {
  opacity: 0.8;
}

.partner-logo img {
  max-height: 40px;
  max-width: 140px;
  filter: grayscale(100%) brightness(2);
  transition: filter var(--transition-base);
}

.partner-logo:hover img {
  filter: grayscale(0%) brightness(1);
}

.partner-text {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--gray-400);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

@media (max-width: 768px) {
  .logo-strip {
    gap: var(--space-8);
  }

  .partner-logo {
    min-width: 100px;
  }

  .partner-text {
    font-size: 0.875rem;
  }
}

/* ============================================
   Features Section
   ============================================ */

.features {
  background: linear-gradient(180deg, transparent 0%, rgba(124, 58, 237, 0.03) 50%, transparent 100%);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-16);
}

.section-label {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary-400);
  margin-bottom: var(--space-4);
}

.section-title {
  margin-bottom: var(--space-4);
}

.section-description {
  font-size: 1.125rem;
  color: var(--gray-400);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.feature-card {
  padding: var(--space-8);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(168, 85, 247, 0.2);
  box-shadow: var(--shadow-glow);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-600), var(--accent-500));
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-5);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  color: white;
}

.feature-title {
  margin-bottom: var(--space-3);
}

.feature-description {
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* ============================================
   Benefits Section
   ============================================ */

.benefits {
  overflow: hidden;
}

.benefits-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.benefits-content {
  max-width: 500px;
}

.benefits-list {
  list-style: none;
  margin-top: var(--space-8);
}

.benefits-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.benefits-list li:last-child {
  border-bottom: none;
}

.benefit-check {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(34, 197, 94, 0.1);
  border-radius: 50%;
  flex-shrink: 0;
}

.benefit-check svg {
  width: 14px;
  height: 14px;
  color: var(--success-500);
}

.benefit-text h4 {
  margin-bottom: var(--space-1);
}

.benefit-text p {
  font-size: 0.9375rem;
}

.benefits-visual {
  position: relative;
}

.code-block {
  background: var(--gray-900);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  overflow-x: auto;
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  color: var(--gray-300);
}

.code-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.code-line {
  display: flex;
  line-height: 1.8;
}

.code-ln {
  width: 40px;
  color: var(--gray-600);
  user-select: none;
}

.code-content {
  flex: 1;
}

.code-keyword {
  color: var(--primary-400);
}

.code-string {
  color: var(--success-500);
}

.code-number {
  color: var(--accent-400);
}

.code-comment {
  color: var(--gray-500);
  font-style: italic;
}

.code-property {
  color: var(--gray-300);
}

.code-indent {
  padding-left: var(--space-4);
}

.code-indent-2 {
  padding-left: var(--space-8);
}

/* ============================================
   Audience Section
   ============================================ */

.audience {
  background: linear-gradient(180deg, transparent 0%, rgba(6, 182, 212, 0.03) 50%, transparent 100%);
}

.audience-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.audience-card {
  padding: var(--space-10);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-2xl);
  transition: all var(--transition-base);
}

.audience-card:hover {
  border-color: rgba(6, 182, 212, 0.3);
  box-shadow: var(--shadow-glow-accent);
}

.audience-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-500), var(--primary-500));
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-6);
}

.audience-icon svg {
  width: 32px;
  height: 32px;
  color: white;
}

.audience-card h3 {
  margin-bottom: var(--space-4);
}

.audience-card p {
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.audience-features {
  list-style: none;
}

.audience-features li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.audience-features li::before {
  content: '→';
  color: var(--accent-400);
}

/* ============================================
   Stats Section
   ============================================ */

.stats {
  padding: var(--space-20) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  text-align: center;
}

.stat-item {
  padding: var(--space-6);
}

.stat-number {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-400), var(--accent-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-2);
  line-height: 1;
}

.stat-item p {
  font-size: 1rem;
  color: var(--gray-400);
}

/* ============================================
   Testimonials
   ============================================ */

.testimonial-card {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  padding: var(--space-12);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-2xl);
}

.testimonial-quote {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 400;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: var(--space-8);
}

.testimonial-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.testimonial-avatar {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: white;
  font-size: 1.25rem;
}

.testimonial-info h4 {
  font-size: 1rem;
  margin-bottom: var(--space-1);
}

.testimonial-info p {
  font-size: 0.875rem;
}

/* ============================================
   CTA Section
   ============================================ */

.cta {
  padding: var(--space-24) 0;
}

.cta-box {
  text-align: center;
  padding: var(--space-16);
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
  border: 1px solid rgba(168, 85, 247, 0.2);
  border-radius: var(--radius-2xl);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary-400), transparent);
}

.cta h2 {
  margin-bottom: var(--space-4);
}

.cta p {
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto var(--space-8);
}

.cta-buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* Beta Signup Form */
.beta-form {
  max-width: 500px;
  margin: 0 auto;
  text-align: left;
}

.form-group {
  margin-bottom: var(--space-6);
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-2);
  color: var(--text-primary);
}

.form-group .required {
  color: var(--error-500);
}

.form-group .optional {
  color: var(--text-subtle);
  font-weight: 400;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: 1rem;
  color: white;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-400);
  box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-500);
}

.form-group input.error,
.form-group textarea.error {
  border-color: var(--error-500);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-error {
  display: block;
  color: var(--error-500);
  font-size: 0.875rem;
  margin-top: var(--space-2);
}

.form-error-general {
  text-align: center;
  margin-bottom: var(--space-4);
}

.btn-submit {
  width: 100%;
  position: relative;
}

.btn-submit .btn-spinner {
  display: none;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.btn-submit.loading .btn-text {
  visibility: hidden;
}

.btn-submit.loading .btn-spinner {
  display: block;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

@keyframes spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

/* Success State */
.beta-success {
  text-align: center;
  animation: fadeInUp 0.5s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeOutDown {
  from {
    opacity: 1;
    transform: translateY(0);
  }

  to {
    opacity: 0;
    transform: translateY(20px);
  }
}

.success-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-6);
  background: linear-gradient(135deg, var(--success-500), var(--accent-500));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.success-icon svg {
  width: 40px;
  height: 40px;
  color: white;
}

/* Light mode form adjustments */
[data-theme="light"] .form-group input,
[data-theme="light"] .form-group textarea {
  background: rgba(0, 0, 0, 0.03);
  border-color: rgba(0, 0, 0, 0.15);
  color: var(--gray-900);
}

[data-theme="light"] .form-group input:focus,
[data-theme="light"] .form-group textarea:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.1);
}

/* ============================================
   Broadcast Promo Section
   ============================================ */

.broadcast-promo {
  padding: var(--space-20) 0;
}

.broadcast-promo-box {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
  border: 1px solid rgba(168, 85, 247, 0.2);
  border-radius: var(--radius-2xl);
  padding: var(--space-12);
  position: relative;
  overflow: hidden;
}

.broadcast-promo-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary-400), transparent);
}

.broadcast-promo-content {
  display: flex;
  align-items: flex-start;
  gap: var(--space-8);
}

.broadcast-promo-icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-600), var(--accent-500));
  border-radius: var(--radius-xl);
  flex-shrink: 0;
}

.broadcast-promo-icon svg {
  width: 36px;
  height: 36px;
  color: white;
}

.broadcast-promo-text h3 {
  font-size: 1.75rem;
  margin-bottom: var(--space-4);
  color: var(--text-primary);
}

.broadcast-promo-text p {
  font-size: 1.0625rem;
  color: var(--gray-400);
  line-height: 1.7;
  margin-bottom: var(--space-6);
  max-width: 700px;
}

/* Availability & Early Access Badges */
.availability-badge,
.early-access-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.availability-badge {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success-500);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.early-access-badge {
  background: rgba(168, 85, 247, 0.15);
  color: var(--primary-400);
  border: 1px solid rgba(168, 85, 247, 0.3);
}


@media (max-width: 768px) {
  .broadcast-promo-content {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .broadcast-promo-text h3 {
    font-size: 1.5rem;
  }

  .broadcast-promo-box {
    padding: var(--space-8);
  }
}

/* ============================================
   FEC Karting Section
   ============================================ */


.fec-karting {
  padding: var(--space-16) 0;
  background: rgba(255, 255, 255, 0.02);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.fec-content {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.fec-content h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-4);
  color: var(--gray-300);
}

.fec-content p {
  color: var(--gray-400);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

.fec-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--accent-400);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.fec-link:hover {
  color: var(--accent-500);
  text-decoration: underline;
}

/* ============================================
   Footer
   ============================================ */

footer {
  padding: var(--space-12) 0 var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: white;
  font-weight: 600;
}

.footer-links {
  display: flex;
  gap: var(--space-8);
  list-style: none;
}

.footer-links a {
  color: var(--gray-400);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: white;
}

.footer-copyright {
  width: 100%;
  text-align: center;
  margin-top: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.875rem;
  color: var(--gray-500);
}

/* ============================================
   Mobile Navigation
   ============================================ */

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  background: none;
  border: none;
  cursor: pointer;
  z-index: 10;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: white;
  border-radius: 2px;
  transition: all var(--transition-fast);
  transform-origin: center;
}

[data-theme="light"] .mobile-toggle span {
  background: var(--gray-800);
}

/* Hamburger to X animation */
.mobile-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  header.mobile-menu-open {
    background: rgba(10, 10, 10, 0.98);
  }

  [data-theme="light"] header.mobile-menu-open {
    background: rgba(255, 255, 255, 0.98);
  }

  .nav-links,
  .nav-cta {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.98);
    padding: var(--space-4) var(--space-6);
    flex-direction: column;
    gap: var(--space-4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-links.mobile-open,
  .nav-cta.mobile-open {
    display: flex;
  }

  .nav-links {
    top: 100%;
  }

  .nav-cta {
    top: calc(100% + 180px);
  }

  .nav-links a {
    padding: var(--space-2) 0;
    font-size: 1rem;
  }

  .nav-cta .btn {
    width: 100%;
    justify-content: center;
  }

  .mobile-toggle {
    display: flex;
  }

  /* Light mode mobile menu */
  [data-theme="light"] .nav-links,
  [data-theme="light"] .nav-cta {
    background: rgba(255, 255, 255, 0.98);
    border-bottom-color: rgba(0, 0, 0, 0.1);
  }

  [data-theme="light"] .nav-links a {
    color: var(--gray-700);
  }

  [data-theme="light"] .nav-links a:hover {
    color: var(--gray-900);
  }

  /* Hide last lap column on mobile */
  .lap-time,
  .lap-time-header {
    display: none;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

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

  .benefits-grid {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

  .benefits-visual {
    order: -1;
  }

  .audience-cards {
    grid-template-columns: 1fr;
  }

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

  .dashboard-sidebar {
    display: none;
  }

  .hero-dashboard {
    margin: 0 calc(var(--space-6) * -1);
    border-radius: 0;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  section {
    padding: var(--space-16) 0;
  }

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

  .stat-row {
    flex-direction: column;
  }

  .cta-box {
    padding: var(--space-10) var(--space-6);
  }
}

/* ============================================
   Utilities
   ============================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.fade-in {
  animation: fadeIn 0.35s ease-out forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.delay-100 {
  animation-delay: 100ms;
}

.delay-200 {
  animation-delay: 200ms;
}

.delay-300 {
  animation-delay: 300ms;
}

.delay-400 {
  animation-delay: 400ms;
}