/* ============================================
   SPEED READER - Modern Glassmorphism Design
   Mobile-First Approach
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  /* Color Palette - Refined & Softer */
  --bg-deep: #06060a;
  --bg-primary: #0c0c14;
  --bg-secondary: #12121c;
  --bg-elevated: #181824;
  
  /* Glass colors */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-highlight: rgba(255, 255, 255, 0.12);
  
  --text-primary: #f0f0f5;
  --text-secondary: #9090a8;
  --text-muted: #606078;
  
  /* Accent colors - warmer, more vibrant */
  --accent-cyan: #22d3ee;
  --accent-pink: #f472b6;
  --accent-yellow: #fbbf24;
  --accent-green: #34d399;
  --accent-red: #f87171;
  --accent-purple: #a78bfa;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--accent-cyan), var(--accent-pink));
  --gradient-warm: linear-gradient(135deg, var(--accent-pink), var(--accent-yellow));
  --gradient-cool: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  
  /* Typography */
  --font-display: 'Space Grotesk', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Spacing */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 150ms var(--ease-out-expo);
  --transition-base: 300ms var(--ease-out-expo);
  --transition-slow: 500ms var(--ease-out-expo);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
  --shadow-glow-cyan: 0 0 40px rgba(34, 211, 238, 0.2);
  --shadow-glow-pink: 0 0 40px rgba(244, 114, 182, 0.2);
}

/* ============================================
   RESET & BASE
   ============================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-display);
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  min-height: 100dvh;
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Ambient background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(ellipse 80% 50% at 20% 20%, rgba(34, 211, 238, 0.08), transparent),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(244, 114, 182, 0.06), transparent),
    radial-gradient(ellipse 50% 50% at 50% 100%, rgba(167, 139, 250, 0.04), transparent);
  pointer-events: none;
  z-index: 0;
}

/* ============================================
   LAYOUT
   ============================================ */

.container {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: var(--space-md);
  padding-bottom: calc(80px + env(safe-area-inset-bottom));
  position: relative;
  z-index: 1;
}

@media (min-width: 768px) {
  .container {
    max-width: 600px;
    padding: var(--space-xl);
    padding-bottom: var(--space-xl);
  }
}

.screen {
  display: none !important;
  animation: screenEnter 0.5s var(--ease-out-expo);
}

.screen.active {
  display: block !important;
}

@keyframes screenEnter {
  from { 
    opacity: 0; 
    transform: translateY(20px);
  }
  to { 
    opacity: 1; 
    transform: translateY(0);
  }
}

/* ============================================
   GLASS CARDS
   ============================================ */

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.05) 0%,
    transparent 50%
  );
  pointer-events: none;
}

.glass-card-glow {
  box-shadow: var(--shadow-glow-cyan);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1 {
  font-size: clamp(2rem, 8vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: clamp(1.5rem, 5vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

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

.text-muted {
  color: var(--text-muted);
}

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

/* ============================================
   BUTTONS - Modern System
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  -webkit-user-select: none;
  user-select: none;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn:active {
  transform: scale(0.97);
}

/* Primary Button - Gradient with glow */
.btn-primary {
  padding: var(--space-md) var(--space-xl);
  background: var(--gradient-primary);
  color: var(--bg-deep);
  border-radius: var(--radius-full);
  box-shadow: 
    0 4px 20px rgba(34, 211, 238, 0.3),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.btn-primary:hover {
  box-shadow: 
    0 8px 40px rgba(34, 211, 238, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.2) inset;
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
}

/* Secondary Button - Glass */
.btn-secondary {
  padding: var(--space-sm) var(--space-lg);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  color: var(--text-primary);
  border-radius: var(--radius-full);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  background: var(--glass-highlight);
  border-color: rgba(255, 255, 255, 0.15);
}

/* Icon Button - Circle */
.btn-icon {
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: var(--radius-full);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  font-size: 1.25rem;
}

.btn-icon:hover {
  background: var(--glass-highlight);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-icon.lg {
  width: 64px;
  height: 64px;
  font-size: 1.5rem;
}

/* Ghost Button */
.btn-ghost {
  padding: var(--space-sm) var(--space-md);
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
}

.btn-ghost:hover {
  background: var(--glass-bg);
  color: var(--text-primary);
}

/* Disabled state */
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ============================================
   HOME SCREEN
   ============================================ */

.home-screen {
  text-align: center;
  padding-top: var(--space-xl);
}

.logo-section {
  margin-bottom: var(--space-xl);
}

.mode-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 3px;
  border-radius: var(--radius-full);
  background: rgba(148, 163, 184, 0.14);
  border: 1px solid rgba(148, 163, 184, 0.4);
  margin-bottom: var(--space-lg);
}

.mode-pill {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.8rem;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background 0.15s ease, color 0.15s ease, transform 0.1s ease;
}

.mode-pill.active {
  background: var(--bg-elevated);
  color: var(--text-primary);
  box-shadow: 0 0 0 1px rgba(148, 163, 184, 0.5), 0 18px 40px rgba(15, 23, 42, 0.7);
}

.mode-pill:not(.active):hover {
  background: rgba(148, 163, 184, 0.18);
  color: var(--text-primary);
}

.mode-soon-badge {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 6px;
  border-radius: 999px;
  background: rgba(248, 250, 252, 0.08);
  border: 1px solid rgba(148, 163, 184, 0.6);
  color: var(--text-muted);
}

.logo-icon {
  font-size: 3rem;
  margin-bottom: var(--space-sm);
  display: block;
}

/* Hero Tagline */
.hero-tagline {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
  line-height: 1.6;
}

.hero-tagline .highlight {
  color: var(--accent-cyan);
  font-weight: 600;
}

.hero-tagline .highlight-secondary {
  color: var(--accent-pink);
  font-weight: 600;
}

.hero-subtitle {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}

/* Live Counter */
.live-counter {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-xl);
}

.live-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: livePulse 2s ease-in-out infinite;
}

@keyframes livePulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.4); }
  50% { opacity: 0.6; box-shadow: 0 0 0 4px rgba(52, 211, 153, 0); }
}

.live-counter span {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.live-counter strong {
  color: var(--accent-cyan);
}

/* Challenge Banner */
.challenge-banner {
  background: linear-gradient(135deg, rgba(244, 114, 182, 0.15), rgba(251, 191, 36, 0.15));
  border: 1px solid rgba(244, 114, 182, 0.3);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
  text-align: center;
}

.challenge-banner h3 {
  color: var(--accent-pink);
  margin-bottom: var(--space-xs);
  font-size: 1rem;
}

.challenge-banner .opponent {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--space-sm);
}

.challenge-banner .score {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-yellow);
}

/* Category Pills */
.category-section {
  margin-bottom: var(--space-xl);
}

.category-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

.category-scroll {
  display: flex;
  gap: var(--space-xs);
  overflow-x: auto;
  padding: var(--space-2xs) 0;
  margin: 0 calc(var(--space-md) * -1);
  padding-left: var(--space-md);
  padding-right: var(--space-md);
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.category-scroll::-webkit-scrollbar {
  display: none;
}

.category-pill {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  background: var(--bg-elevated);
  border: 2px solid transparent;
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.category-pill:hover {
  background: var(--glass-highlight);
  color: var(--text-primary);
}

.category-pill.active {
  background: rgba(34, 211, 238, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.category-pill[data-category="science"].active {
  background: rgba(52, 211, 153, 0.15);
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.category-pill[data-category="fiction"].active {
  background: rgba(244, 114, 182, 0.15);
  border-color: var(--accent-pink);
  color: var(--accent-pink);
}

.category-pill[data-category="news"].active {
  background: rgba(251, 191, 36, 0.15);
  border-color: var(--accent-yellow);
  color: var(--accent-yellow);
}

.category-pill[data-category="philosophy"].active {
  background: rgba(167, 139, 250, 0.15);
  border-color: var(--accent-purple);
  color: var(--accent-purple);
}

/* Speed Selector - Modern */
.speed-card {
  margin-bottom: var(--space-xl);
}

.speed-display {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.speed-number {
  font-family: var(--font-mono);
  font-size: 4.5rem;
  font-weight: 700;
  line-height: 1;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-2xs);
}

.speed-unit {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

/* Speed Stepper */
.speed-stepper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.speed-stepper .btn-icon {
  width: 56px;
  height: 56px;
  font-size: 1.5rem;
}

/* Speed Slider - Hidden but functional */
.speed-slider-track {
  position: relative;
  height: 4px;
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

.speed-slider-fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-fast);
}

.speed-slider {
  position: absolute;
  width: 100%;
  height: 100%;
  top: -10px;
  height: 24px;
  opacity: 0;
  cursor: pointer;
}

/* Speed Presets - Chunky Pills */
.speed-presets {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-xs);
}

.speed-pill {
  min-width: 64px;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 600;
  background: var(--bg-elevated);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.speed-pill:hover:not(.locked) {
  background: var(--glass-highlight);
  border-color: var(--glass-border);
  color: var(--text-primary);
}

.speed-pill.active {
  background: rgba(34, 211, 238, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.2);
}

.speed-pill.locked {
  opacity: 0.4;
  cursor: not-allowed;
}

.speed-pill .lock {
  font-size: 0.625rem;
  margin-left: var(--space-2xs);
  opacity: 0.7;
}

/* Unlock Hint */
.unlock-hint {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: var(--space-md);
  text-align: center;
}

.unlock-hint strong {
  color: var(--accent-yellow);
}

/* Custom Speed Input */
.custom-speed-section {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--glass-border);
}

.custom-speed-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: var(--space-sm);
  text-align: center;
}

.custom-speed-input-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

.custom-speed-input {
  width: 100px;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 600;
  text-align: center;
  background: var(--bg-primary);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--accent-cyan);
  outline: none;
  transition: all var(--transition-fast);
}

.custom-speed-input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.2);
}

.custom-speed-input::-webkit-inner-spin-button,
.custom-speed-input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.custom-speed-unit {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.custom-speed-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: var(--space-sm);
  font-style: italic;
}

/* Impossible Mode Presets */
.impossible-modes {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px dashed rgba(239, 68, 68, 0.3);
}

.impossible-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-red);
  text-align: center;
  margin-bottom: var(--space-sm);
  animation: impossiblePulse 2s ease-in-out infinite;
}

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

.impossible-buttons {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
}

.btn-impossible {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: var(--space-sm) var(--space-md);
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(236, 72, 153, 0.2));
  border: 2px solid rgba(239, 68, 68, 0.4);
  border-radius: var(--radius-lg);
  color: var(--accent-red);
  font-family: var(--font-display);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: 80px;
}

.btn-impossible:hover {
  transform: translateY(-2px) scale(1.05);
  border-color: var(--accent-red);
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.4);
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.3), rgba(236, 72, 153, 0.3));
}

.btn-impossible .mode-name {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.btn-impossible .mode-wpm {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
}

.btn-impossible[data-wpm="1500"] {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.3), rgba(251, 191, 36, 0.2), rgba(236, 72, 153, 0.3));
  border-color: rgba(251, 191, 36, 0.5);
  animation: impossibleBorder 2s linear infinite;
}

@keyframes impossibleBorder {
  0%, 100% { border-color: rgba(239, 68, 68, 0.5); }
  33% { border-color: rgba(251, 191, 36, 0.5); }
  66% { border-color: rgba(236, 72, 153, 0.5); }
}

.btn-impossible[data-wpm="1500"] .mode-name {
  background: linear-gradient(90deg, #ef4444, #fbbf24, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   TIER SYSTEM - Roadmap Style
   ============================================ */

.tier-roadmap {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--glass-border);
  text-align: center;
}

/* Current Tier Badge */
.current-tier-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--bg-elevated);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
  transition: all var(--transition-base);
}

.current-tier-badge .tier-icon {
  font-size: 1.25rem;
}

.current-tier-badge .tier-name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Tier-specific badge colors */
.current-tier-badge.beginner {
  border-color: #6b7280;
  background: rgba(107, 114, 128, 0.15);
}
.current-tier-badge.beginner .tier-name { color: #9ca3af; }

.current-tier-badge.intermediate {
  border-color: #10b981;
  background: rgba(16, 185, 129, 0.15);
}
.current-tier-badge.intermediate .tier-name { color: #34d399; }

.current-tier-badge.advanced {
  border-color: #3b82f6;
  background: rgba(59, 130, 246, 0.15);
}
.current-tier-badge.advanced .tier-name { color: #60a5fa; }

.current-tier-badge.expert {
  border-color: #8b5cf6;
  background: rgba(139, 92, 246, 0.15);
}
.current-tier-badge.expert .tier-name { color: #a78bfa; }

.current-tier-badge.master {
  border-color: #f59e0b;
  background: rgba(245, 158, 11, 0.15);
}
.current-tier-badge.master .tier-name { color: #fbbf24; }

.current-tier-badge.god-tier {
  border-color: transparent;
  background: linear-gradient(135deg, rgba(236, 72, 153, 0.25), rgba(239, 68, 68, 0.25), rgba(251, 191, 36, 0.25));
  position: relative;
  animation: godTierPulse 2s ease-in-out infinite;
}

.current-tier-badge.god-tier::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, #ec4899, #ef4444, #fbbf24);
  border-radius: var(--radius-full);
  z-index: -1;
}

.current-tier-badge.god-tier .tier-name {
  background: linear-gradient(135deg, #ec4899, #ef4444, #fbbf24);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

@keyframes godTierPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(239, 68, 68, 0.3); }
  50% { box-shadow: 0 0 40px rgba(251, 191, 36, 0.5); }
}

/* Tier Path - Horizontal progression */
.tier-path {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: var(--space-md);
  padding: 0 var(--space-sm);
}

.tier-node {
  position: relative;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  border: 2px solid var(--glass-border);
  border-radius: 50%;
  transition: all var(--transition-base);
  cursor: default;
}

.tier-node .node-icon {
  font-size: 1rem;
  opacity: 0.4;
  filter: grayscale(1);
  transition: all var(--transition-base);
}

.tier-node.unlocked .node-icon {
  opacity: 1;
  filter: grayscale(0);
}

.tier-node.current {
  transform: scale(1.2);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(34, 211, 238, 0.4);
}

.tier-node.current .node-icon {
  opacity: 1;
  filter: grayscale(0);
}

/* Tier node colors when unlocked */
.tier-node[data-tier="beginner"].unlocked { border-color: #6b7280; }
.tier-node[data-tier="intermediate"].unlocked { border-color: #10b981; }
.tier-node[data-tier="advanced"].unlocked { border-color: #3b82f6; }
.tier-node[data-tier="expert"].unlocked { border-color: #8b5cf6; }
.tier-node[data-tier="master"].unlocked { border-color: #f59e0b; }

/* Connectors */
.tier-connector {
  width: 20px;
  height: 3px;
  background: var(--bg-elevated);
  transition: background var(--transition-base);
}

.tier-connector.unlocked {
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-pink));
}

.tier-connector.god {
  width: 30px;
  background: var(--bg-elevated);
}

.tier-connector.god.unlocked {
  background: linear-gradient(90deg, #f59e0b, #ef4444, #ec4899);
  animation: godConnectorPulse 2s ease-in-out infinite;
}

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

/* GOD TIER Node - Special */
.god-tier-node {
  width: 44px;
  height: 44px;
  background: var(--bg-deep);
  border: 2px dashed rgba(239, 68, 68, 0.3);
  position: relative;
}

.god-tier-node .node-icon {
  font-size: 1.25rem;
}

.god-tier-node .lock-overlay {
  position: absolute;
  bottom: -4px;
  right: -4px;
  font-size: 0.75rem;
  background: var(--bg-elevated);
  border-radius: 50%;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--glass-border);
}

.god-tier-node.unlocked {
  border-style: solid;
  border-color: transparent;
  background: linear-gradient(135deg, rgba(236, 72, 153, 0.2), rgba(239, 68, 68, 0.2), rgba(251, 191, 36, 0.2));
  animation: godNodePulse 2s ease-in-out infinite;
}

.god-tier-node.unlocked::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, #ec4899, #ef4444, #fbbf24);
  border-radius: 50%;
  z-index: -1;
  animation: godNodeBorder 3s linear infinite;
}

@keyframes godNodePulse {
  0%, 100% { box-shadow: 0 0 15px rgba(239, 68, 68, 0.4); }
  50% { box-shadow: 0 0 25px rgba(251, 191, 36, 0.6); }
}

@keyframes godNodeBorder {
  0% { filter: hue-rotate(0deg); }
  100% { filter: hue-rotate(360deg); }
}

.god-tier-node.unlocked .node-icon {
  opacity: 1;
  filter: grayscale(0);
  animation: godIconPulse 1s ease-in-out infinite;
}

@keyframes godIconPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.god-tier-node.unlocked .lock-overlay {
  display: none;
}

/* Tier Goal Text */
.tier-goal {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.tier-goal .goal-text {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.tier-goal .god-text {
  background: linear-gradient(135deg, #ec4899, #ef4444, #fbbf24);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
  animation: godTextShimmer 3s linear infinite;
  background-size: 200% 100%;
}

@keyframes godTextShimmer {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

.tier-goal.achieved {
  color: var(--accent-yellow);
}

.tier-goal.achieved .god-text {
  animation: godTextPulse 2s ease-in-out infinite;
}

@keyframes godTextPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* God Tier speed number */
.speed-number.god-tier {
  background: linear-gradient(135deg, #ec4899, #ef4444, #fbbf24);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: godTierText 3s linear infinite;
  background-size: 200% 200%;
}

@keyframes godTierText {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Feature Grid */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.feature {
  text-align: center;
  padding: var(--space-md);
  background: var(--glass-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
}

.feature-icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
}

.feature-text {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.3;
}

/* ============================================
   BOTTOM ACTION BAR (Mobile)
   ============================================ */

.bottom-actions {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-md);
  padding-bottom: calc(var(--space-md) + env(safe-area-inset-bottom));
  background: linear-gradient(to top, var(--bg-deep) 60%, transparent);
  z-index: 100;
  display: flex;
  gap: var(--space-sm);
}

.bottom-actions .btn-primary {
  flex: 1;
}

@media (min-width: 768px) {
  .bottom-actions {
    position: static;
    background: none;
    padding: 0;
    max-width: 400px;
    margin: 0 auto;
  }
}

/* ============================================
   READER SCREEN
   ============================================ */

.reader-screen {
  position: fixed;
  inset: 0;
  background: var(--bg-deep);
  flex-direction: column;
  z-index: 200;
}

.reader-screen.active {
  display: flex !important;
}

/* Reader Header */
.reader-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md);
  padding-top: calc(var(--space-md) + env(safe-area-inset-top));
}

.reader-meta {
  text-align: center;
  flex: 1;
}

.reader-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-2xs);
}

.reader-speed {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Reader Display */
.reader-display {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}

.word-wrapper {
  position: relative;
}

.focus-indicator {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 24px;
  background: var(--accent-cyan);
  opacity: 0.4;
  top: -32px;
}

.word-display {
  font-family: var(--font-mono) !important;
  font-size: clamp(2.5rem, 14vw, 5.5rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  /* Prevent blur from transforms only - don't change font rendering */
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform-origin: center center;
}

.word-display .before,
.word-display .after,
.word-display .orp {
  font-family: var(--font-display) !important;
}

.word-display .before,
.word-display .after {
  color: var(--text-primary);
}

.word-display .orp {
  color: var(--accent-cyan);
  text-shadow: 0 0 30px rgba(34, 211, 238, 0.5);
}

/* Reader Controls */
.reader-controls {
  padding: var(--space-lg);
  padding-bottom: calc(var(--space-lg) + env(safe-area-inset-bottom));
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}

/* Progress */
.reader-progress {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--bg-elevated);
}

.reader-progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  transition: width 0.1s linear;
}

/* ============================================
   COUNTDOWN OVERLAY
   ============================================ */

.countdown-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 6, 10, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 300;
}

.countdown-number {
  font-family: var(--font-mono);
  font-size: 10rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: countdownPulse 1s ease-in-out infinite;
}

@keyframes countdownPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.05); opacity: 0.8; }
}

/* ============================================
   FUN FACT OVERLAY
   ============================================ */

.fun-fact-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 6, 10, 0.98);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  z-index: 300;
}

.fun-fact-card {
  max-width: 400px;
  text-align: center;
}

.fun-fact-icon {
  font-size: 4rem;
  margin-bottom: var(--space-lg);
}

.fun-fact-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-yellow);
  margin-bottom: var(--space-sm);
}

.fun-fact-text {
  font-size: 1.25rem;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: var(--space-xl);
}

/* ============================================
   QUIZ SCREEN
   ============================================ */

.quiz-screen {
  padding-top: var(--space-xl);
}

.quiz-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.quiz-progress-dots {
  display: flex;
  justify-content: center;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.quiz-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bg-elevated);
  transition: all var(--transition-fast);
}

.quiz-dot.answered {
  background: var(--accent-cyan);
}

.quiz-dot.current {
  background: var(--accent-pink);
  box-shadow: 0 0 12px rgba(244, 114, 182, 0.5);
  transform: scale(1.25);
}

.quiz-dot.bonus {
  background: var(--accent-yellow);
}

.quiz-dot.bonus.current {
  background: var(--accent-yellow);
  box-shadow: 0 0 12px rgba(251, 191, 36, 0.5);
}

/* ============================================
   QUESTION TIMER
   ============================================ */

.question-timer-container {
  margin-top: var(--space-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.timer-circle {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 3px solid var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.timer-number {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-cyan);
  transition: color var(--transition-fast);
}

.timer-number.warning {
  color: var(--accent-yellow);
}

.timer-circle:has(.timer-number.warning) {
  border-color: var(--accent-yellow);
  animation: timerPulse 0.5s ease-in-out infinite;
}

.timer-number.critical {
  color: var(--accent-red);
}

.timer-circle:has(.timer-number.critical) {
  border-color: var(--accent-red);
  animation: timerPulse 0.3s ease-in-out infinite;
}

@keyframes timerPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.timer-bar {
  width: 100%;
  max-width: 200px;
  height: 4px;
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.timer-bar-fill {
  height: 100%;
  background: var(--accent-cyan);
  border-radius: var(--radius-full);
  transition: width 1s linear, background var(--transition-fast);
}

.timer-bar-fill:has(~ .timer-number.warning) {
  background: var(--accent-yellow);
}

/* ============================================
   WORD RECOGNITION GRID
   ============================================ */

.word-recognition-title {
  display: block;
  font-size: 1.125rem;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.word-recognition-hint {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.options.word-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.word-option {
  padding: var(--space-md);
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 500;
  background: var(--bg-elevated);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-transform: capitalize;
}

.word-option:hover {
  background: var(--glass-highlight);
  border-color: var(--glass-border);
}

.word-option.selected {
  background: rgba(251, 191, 36, 0.15);
  border-color: var(--accent-yellow);
  color: var(--accent-yellow);
}

/* Fast answer warning */
.question-card.fast-answer {
  animation: fastAnswerShake 0.3s ease;
}

@keyframes fastAnswerShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

/* ============================================
   WORD RECOGNITION & TIMING RESULTS
   ============================================ */

.bonus-section {
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  margin: var(--space-md) 0;
}

.bonus-header {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
}

.bonus-icon {
  font-size: 1.25rem;
}

.bonus-title {
  font-weight: 600;
  color: var(--accent-yellow);
}

.bonus-details {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.bonus-value {
  font-weight: 700;
  color: var(--accent-green);
}

.bonus-value.negative {
  color: var(--accent-red);
}

.timing-section {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  margin: var(--space-md) 0;
}

.timing-header {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.timing-bars {
  display: flex;
  align-items: flex-end;
  gap: var(--space-xs);
  height: 60px;
  margin-bottom: var(--space-sm);
}

.timing-bar {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
}

.timing-bar-fill {
  width: 100%;
  background: var(--accent-cyan);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  transition: height var(--transition-normal);
}

.timing-bar-fill.fast {
  background: var(--accent-yellow);
}

.timing-bar-fill.timeout {
  background: var(--accent-red);
}

.timing-bar-label {
  font-size: 0.625rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.timing-avg {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.timing-warning {
  color: var(--accent-yellow);
  font-size: 0.75rem;
}

.timing-warning.hidden {
  display: none;
}

/* NOT Mentioned Question Badge */
.not-mentioned-badge {
  display: inline-block;
  background: rgba(244, 63, 94, 0.15);
  color: var(--accent-red);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  margin-right: var(--space-xs);
  animation: pulseBadge 2s ease-in-out infinite;
}

@keyframes pulseBadge {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Question Card */
.question-card {
  margin-bottom: var(--space-xl);
}

.question-text {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  line-height: 1.5;
}

.options {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.option {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  text-align: left;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  background: var(--bg-elevated);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.option:hover {
  background: var(--glass-highlight);
  border-color: var(--glass-border);
}

.option.selected {
  background: rgba(34, 211, 238, 0.15);
  border-color: var(--accent-cyan);
}

/* Quiz Nav */
.quiz-nav {
  display: flex;
  gap: var(--space-sm);
}

.quiz-nav .btn {
  flex: 1;
}

/* ============================================
   RESULTS SCREEN
   ============================================ */

.results-screen {
  padding-top: var(--space-xl);
}

.results-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

/* Score Hero */
.score-hero {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.score-number {
  font-family: var(--font-mono);
  font-size: 5rem;
  font-weight: 700;
  line-height: 1;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.score-label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

/* Unlock Achievement */
.unlock-card {
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.15), rgba(34, 211, 238, 0.15));
  border: 1px solid var(--accent-green);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  text-align: center;
  margin-bottom: var(--space-xl);
  animation: unlockBounce 0.6s var(--ease-out-expo);
}

@keyframes unlockBounce {
  0% { transform: scale(0.8); opacity: 0; }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); opacity: 1; }
}

.unlock-card .icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.unlock-card .title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--accent-green);
  margin-bottom: var(--space-2xs);
}

.unlock-card .desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Challenge Result */
.challenge-result-card {
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  text-align: center;
  margin-bottom: var(--space-xl);
}

.challenge-result-card.win {
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.15), rgba(34, 211, 238, 0.15));
  border: 1px solid var(--accent-green);
}

.challenge-result-card.lose {
  background: linear-gradient(135deg, rgba(248, 113, 113, 0.15), rgba(244, 114, 182, 0.15));
  border: 1px solid var(--accent-red);
}

.challenge-result-card .message {
  font-size: 1.125rem;
  font-weight: 600;
}

.challenge-result-card.win .message {
  color: var(--accent-green);
}

.challenge-result-card.lose .message {
  color: var(--accent-red);
}

/* Stats Grid */
.stats-row {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.stat {
  text-align: center;
}

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

.stat-label {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-top: var(--space-2xs);
}

/* Comparison Bar */
.comparison {
  margin-bottom: var(--space-xl);
}

.comparison-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
  text-align: center;
}

.comparison-track {
  position: relative;
  height: 6px;
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-sm);
}

.comparison-marker {
  position: absolute;
  top: 50%;
  width: 16px;
  height: 16px;
  background: var(--accent-cyan);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 16px rgba(34, 211, 238, 0.5);
  transition: left var(--transition-base);
}

.comparison-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.625rem;
  color: var(--text-muted);
}

/* Comparison Stats (Combined with Fun Comparison) */
.comparison-stats-section {
  margin-bottom: var(--space-lg);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease 0.3s, transform 0.5s ease 0.3s;
}

.comparison-stats-section:not(.hidden) {
  opacity: 1;
  transform: translateY(0);
}

.comparison-stats-card {
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  box-shadow: var(--shadow-md);
}

.comparison-stats-icon {
  font-size: 1.75rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.comparison-stats-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  flex: 1;
}

.comparison-stats-main {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
}

.comparison-stats-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* Save Form */
.save-section {
  margin-bottom: var(--space-xl);
}

.save-form {
  display: flex;
  gap: var(--space-sm);
}

.input {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-display);
  font-size: 16px; /* Prevent iOS zoom */
  background: var(--bg-elevated);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  outline: none;
  transition: all var(--transition-fast);
}

@media (min-width: 768px) {
  .input {
    font-size: 1rem; /* Can use rem on desktop */
  }
}

.input:focus {
  border-color: var(--accent-cyan);
  background: var(--bg-secondary);
}

.input::placeholder {
  color: var(--text-muted);
}

/* Challenge Link */
.challenge-section {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.challenge-section h4 {
  font-size: 0.9375rem;
  margin-bottom: var(--space-xs);
}

.challenge-section p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.challenge-link-row {
  display: flex;
  gap: var(--space-sm);
}

.challenge-link-row .input {
  font-family: var(--font-mono);
  font-size: 16px; /* Prevent iOS zoom */
}

@media (min-width: 768px) {
  .challenge-link-row .input {
    font-size: 0.75rem; /* Can use smaller size on desktop */
  }
}

/* Share Card */
.share-section {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.share-section h4 {
  font-size: 0.9375rem;
  margin-bottom: var(--space-md);
}

/* Share Format Toggle */
.share-format-toggle {
  display: flex;
  gap: var(--space-xs);
  justify-content: center;
  margin-bottom: var(--space-md);
  background: var(--bg-elevated);
  padding: var(--space-xs);
  border-radius: var(--radius-full);
}

.format-btn {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  background: transparent;
  border: none;
  border-radius: var(--radius-full);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.format-btn:hover {
  color: var(--text-primary);
}

.format-btn.active {
  background: var(--gradient-primary);
  color: var(--bg-deep);
}

.share-canvas-wrapper {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-xs);
  margin-bottom: var(--space-md);
  display: inline-block;
}

.share-canvas-wrapper canvas {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  border-radius: var(--radius-md);
}

.share-buttons {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
}

/* Results Actions */
.results-actions {
  display: flex;
  gap: var(--space-sm);
}

.results-actions .btn {
  flex: 1;
}

/* ============================================
   LEADERBOARD SCREEN
   ============================================ */

.leaderboard-screen {
  padding-top: var(--space-xl);
}

.leaderboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xl);
}

.leaderboard-list {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.leaderboard-row {
  display: grid;
  grid-template-columns: 48px 1fr 80px;
  align-items: center;
  padding: var(--space-md);
  border-bottom: 1px solid var(--glass-border);
  transition: background var(--transition-fast);
}

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

.leaderboard-row:hover {
  background: var(--glass-highlight);
}

.leaderboard-row.header {
  background: var(--bg-elevated);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding: var(--space-sm) var(--space-md);
}

.lb-rank {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.875rem;
}

.lb-rank.gold { color: var(--accent-yellow); }
.lb-rank.silver { color: #c0c0c0; }
.lb-rank.bronze { color: #cd7f32; }

.lb-player {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.lb-avatar {
  width: 32px;
  height: 32px;
  background: var(--bg-elevated);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
}

.lb-name {
  font-weight: 500;
  font-size: 0.9375rem;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.lb-flag {
  font-size: 1rem;
  line-height: 1;
}

.lb-time {
  font-size: 0.6875rem;
  color: var(--text-muted);
}

.lb-score {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent-cyan);
  text-align: right;
}

/* Chaos Leaderboard Styling */
.leaderboard-row.header.chaos-header {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(239, 68, 68, 0.15));
  border-bottom: 2px solid rgba(139, 92, 246, 0.3);
  position: relative;
  overflow: hidden;
}

.leaderboard-row.header.chaos-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  animation: chaosShimmer 3s infinite;
}

@keyframes chaosShimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

.leaderboard-row.chaos-row {
  position: relative;
  border-left: 3px solid transparent;
  transition: all 0.3s ease;
}

.leaderboard-row.chaos-row::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, rgba(139, 92, 246, 0.6), rgba(239, 68, 68, 0.6));
  opacity: 0;
  transition: opacity 0.3s;
}

.leaderboard-row.chaos-row:hover {
  background: linear-gradient(90deg, rgba(139, 92, 246, 0.08), rgba(239, 68, 68, 0.05));
  transform: translateX(2px);
}

.leaderboard-row.chaos-row:hover::before {
  opacity: 1;
}

/* Top 3 chaos styling */
.leaderboard-row.chaos-row.chaos-gold {
  background: linear-gradient(90deg, rgba(251, 191, 36, 0.12), transparent);
  border-left-color: rgba(251, 191, 36, 0.6);
  box-shadow: inset 0 0 20px rgba(251, 191, 36, 0.05);
}

.leaderboard-row.chaos-row.chaos-gold::before {
  background: linear-gradient(180deg, rgba(251, 191, 36, 0.8), rgba(251, 191, 36, 0.4));
  opacity: 1;
}

.leaderboard-row.chaos-row.chaos-silver {
  background: linear-gradient(90deg, rgba(192, 192, 192, 0.1), transparent);
  border-left-color: rgba(192, 192, 192, 0.5);
}

.leaderboard-row.chaos-row.chaos-silver::before {
  background: linear-gradient(180deg, rgba(192, 192, 192, 0.6), rgba(192, 192, 192, 0.3));
  opacity: 1;
}

.leaderboard-row.chaos-row.chaos-bronze {
  background: linear-gradient(90deg, rgba(205, 127, 50, 0.1), transparent);
  border-left-color: rgba(205, 127, 50, 0.5);
}

.leaderboard-row.chaos-row.chaos-bronze::before {
  background: linear-gradient(180deg, rgba(205, 127, 50, 0.6), rgba(205, 127, 50, 0.3));
  opacity: 1;
}

/* Chaos avatar styling */
.chaos-avatar {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(239, 68, 68, 0.2));
  border: 1px solid rgba(139, 92, 246, 0.3);
  position: relative;
  overflow: hidden;
}

.chaos-avatar::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  animation: chaosRotate 4s linear infinite;
  pointer-events: none;
}

@keyframes chaosRotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Chaos score styling */
.chaos-score {
  color: #f472b6;
  font-weight: 700;
  text-shadow: 0 0 10px rgba(244, 114, 182, 0.3);
  position: relative;
}

.chaos-row.chaos-gold .chaos-score {
  color: #fbbf24;
  text-shadow: 0 0 12px rgba(251, 191, 36, 0.4);
}

.chaos-row.chaos-silver .chaos-score {
  color: #c0c0c0;
  text-shadow: 0 0 10px rgba(192, 192, 192, 0.3);
}

.chaos-row.chaos-bronze .chaos-score {
  color: #cd7f32;
  text-shadow: 0 0 10px rgba(205, 127, 50, 0.3);
}

/* Chaos "You" badge */
.chaos-you {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.3), rgba(239, 68, 68, 0.3));
  border: 1px solid rgba(139, 92, 246, 0.5);
  color: #fff;
  animation: chaosPulse 2s ease-in-out infinite;
}

@keyframes chaosPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

/* Empty state */
.chaos-empty-icon {
  font-size: 3rem;
  margin-bottom: var(--space-sm);
  animation: chaosWobble 2s ease-in-out infinite;
}

@keyframes chaosWobble {
  0%, 100% { transform: rotate(-5deg); }
  50% { transform: rotate(5deg); }
}

.chaos-empty-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

/* Chaos tab styling */
.lb-tab[data-tab="chaos"] {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(239, 68, 68, 0.1));
}

.lb-tab[data-tab="chaos"].active {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.3), rgba(239, 68, 68, 0.3));
  border-color: rgba(239, 68, 68, 0.5);
}

.leaderboard-empty {
  text-align: center;
  padding: var(--space-2xl);
  color: var(--text-muted);
}

/* ============================================
   UTILITIES
   ============================================ */

.hidden {
  display: none !important;
}

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

/* ============================================
   HOME HEADER (Floating)
   ============================================ */

.home-header {
  position: fixed;
  top: var(--space-md);
  left: var(--space-md);
  right: var(--space-md);
  top: calc(var(--space-md) + env(safe-area-inset-top));
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: var(--space-xs);
  z-index: 50;
}

/* Streak badge goes to the left */
.home-header .streak-badge-inline {
  margin-right: auto;
}

.btn-ghost {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  width: 40px;
  height: 40px;
  font-size: 1.125rem;
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--glass-highlight);
  border-color: rgba(255, 255, 255, 0.15);
}

.btn-ghost.active {
  color: var(--accent-cyan);
  border-color: rgba(34, 211, 238, 0.3);
}

/* ============================================
   KEYBOARD HINTS
   ============================================ */

.keyboard-hint,
.reader-keyboard-hint,
.quiz-keyboard-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: var(--space-lg);
}

kbd {
  display: inline-block;
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: 4px;
  margin: 0 2px;
}

.reader-keyboard-hint {
  position: absolute;
  bottom: calc(100px + env(safe-area-inset-bottom));
  left: 0;
  right: 0;
  opacity: 0.6;
}

.quiz-keyboard-hint {
  margin-bottom: var(--space-lg);
}

/* Hide keyboard hints on mobile */
@media (max-width: 768px) {
  .keyboard-hint,
  .reader-keyboard-hint,
  .quiz-keyboard-hint {
    display: none;
  }
  
  /* Streak Badge - Mobile */
  .streak-badge-inline {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
  }
  
  /* Daily Challenge Banner - Mobile */
  .daily-banner {
    padding: var(--space-xs) var(--space-sm);
  }
  
  .daily-banner-btn {
    font-size: 0.75rem;
    padding: 0.4rem 0.7rem;
  }
  
  .daily-banner-btn .daily-bonus {
    font-size: 0.65rem;
  }
  
  .daily-details {
    padding: var(--space-sm);
  }
  
  .daily-details-title {
    font-size: 1rem;
  }
  
  .daily-mini-stat .value {
    font-size: 0.8rem;
  }
  
  /* Daily Result - Mobile */
  .daily-result-card {
    padding: var(--space-md);
  }
  
  .daily-result-body {
    gap: var(--space-md);
  }
  
  .daily-result-streak .streak-number {
    font-size: 2rem;
  }
  
  .daily-result-title {
    font-size: 0.85rem;
  }
  
  /* Toast - Mobile */
  .toast {
    left: var(--space-md);
    right: var(--space-md);
    transform: translateY(100px);
    max-width: calc(100% - var(--space-xl));
    text-align: center;
  }
  
  .toast.show {
    transform: translateY(0);
  }
  
  /* Warmup - Mobile */
  .warmup-word-display .warmup-phrase {
    font-size: clamp(1.25rem, 6vw, 2rem);
  }
  
  .warmup-word-display .warmup-go {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }
}

/* ============================================
   OPTION KEYS (Quiz)
   ============================================ */

.option-key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-primary);
  border-radius: 6px;
  margin-right: var(--space-sm);
  color: var(--text-muted);
}

.option.selected .option-key {
  background: var(--accent-cyan);
  color: var(--bg-deep);
}

/* ============================================
   NEW ACHIEVEMENTS (Results)
   ============================================ */

.new-achievements {
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.15), rgba(244, 114, 182, 0.15));
  border: 1px solid var(--accent-yellow);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
  text-align: center;
  animation: achievementSlide 0.6s var(--ease-out-expo);
}

@keyframes achievementSlide {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.new-achievements-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-yellow);
  margin-bottom: var(--space-md);
}

.new-achievement {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-full);
  margin: var(--space-2xs);
}

.new-achievement-icon {
  font-size: 1.25rem;
}

.new-achievement-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* ============================================
   ACHIEVEMENTS MODAL
   ============================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 6, 10, 0.9);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: var(--space-lg);
  padding-top: calc(env(safe-area-inset-top) + var(--space-xl));
  z-index: 1000;
  animation: modalFadeIn 0.3s var(--ease-out-expo);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

@media (min-height: 700px) {
  .modal-overlay {
    align-items: center;
    padding-top: var(--space-lg);
  }
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  width: 100%;
  max-width: 500px;
  max-height: 80vh;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  animation: modalSlideUp 0.4s var(--ease-out-expo);
}

@keyframes modalSlideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-bottom: 1px solid var(--glass-border);
}

.modal-header h2 {
  flex: 1;
  font-size: 1.25rem;
  margin: 0;
}

.achievements-count {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--accent-cyan);
}

.achievements-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  padding: var(--space-lg);
  overflow-y: auto;
  max-height: calc(80vh - 80px);
}

.achievement-card {
  padding: var(--space-md);
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-fast);
}

.achievement-card.locked {
  opacity: 0.4;
  filter: grayscale(1);
}

.achievement-card.unlocked {
  border-color: var(--accent-yellow);
  background: rgba(251, 191, 36, 0.05);
}

.achievement-icon {
  font-size: 2rem;
  margin-bottom: var(--space-xs);
}

.achievement-name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2xs);
}

.achievement-desc {
  font-size: 0.6875rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ============================================
   ONBOARDING MODAL
   ============================================ */

.onboarding-content {
  width: 100%;
  max-width: 400px;
  text-align: center;
  padding: var(--space-xl);
}

.onboarding-skip {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 0.875rem;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.onboarding-skip:hover {
  color: var(--text-primary);
}

.onboarding-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl) var(--space-xl);
  margin-bottom: var(--space-xl);
}

.onboarding-icon {
  font-size: 4rem;
  margin-bottom: var(--space-lg);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.onboarding-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.onboarding-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.onboarding-highlight {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(244, 114, 182, 0.15));
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent-cyan);
}

.onboarding-dots {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.onboarding-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bg-elevated);
  transition: all var(--transition-fast);
}

.onboarding-dot.active {
  width: 24px;
  border-radius: 4px;
  background: var(--gradient-primary);
}

.onboarding-nav {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
}

.onboarding-nav .btn {
  min-width: 120px;
}

/* ============================================
   WARMUP OVERLAY
   ============================================ */

.warmup-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 250;
}

.warmup-content {
  text-align: center;
  padding: var(--space-xl);
}

.warmup-label {
  font-size: 0.875rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xl);
  opacity: 0.8;
}

.warmup-word-display {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 12vw, 4.5rem);
  font-weight: 600;
  margin-bottom: var(--space-xl);
  min-height: 1.2em;
}

.warmup-word-display .before,
.warmup-word-display .after {
  color: var(--text-primary);
}

.warmup-word-display .orp {
  color: var(--accent-cyan);
  text-shadow: 0 0 30px rgba(34, 211, 238, 0.5);
}

.warmup-progress-bar {
  width: 200px;
  height: 4px;
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  margin: 0 auto;
  overflow: hidden;
}

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

/* Enhanced Warmup Styles */
.warmup-word-display .warmup-phrase {
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 7vw, 2.5rem);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.warmup-word-display .warmup-go {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: var(--font-display);
  font-size: clamp(3rem, 14vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  animation: warmup-go-pulse 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes warmup-go-pulse {
  0% {
    transform: scale(0.5);
    opacity: 0;
  }
  50% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.warmup-word-display.warmup-pulse {
  animation: warmup-word-pulse 0.5s ease-out;
}

@keyframes warmup-word-pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

.warmup-word-display.warmup-final {
  animation: warmup-final-reveal 0.5s ease-out;
}

@keyframes warmup-final-reveal {
  0% {
    transform: scale(0.3) rotate(-10deg);
    opacity: 0;
  }
  60% {
    transform: scale(1.3) rotate(5deg);
  }
  100% {
    transform: scale(1) rotate(0deg);
    opacity: 1;
  }
}

/* ============================================
   STREAK DISPLAY - Compact Badge Style
   ============================================ */

.streak-display {
  display: none; /* Hidden by default, we show it inline */
}

/* Inline streak badge for header */
.streak-badge-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.65rem;
  background: rgba(251, 191, 36, 0.15);
  border: 1px solid rgba(251, 191, 36, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-yellow);
  white-space: nowrap;
}

.streak-badge-inline.no-streak {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--glass-border);
  color: var(--text-muted);
}

.streak-badge-inline .streak-icon {
  font-size: 0.9rem;
  line-height: 1;
}

.streak-badge-inline.burning .streak-icon {
  animation: flame-mini 0.4s ease-in-out infinite alternate;
}

@keyframes flame-mini {
  from { transform: scale(1); }
  to { transform: scale(1.15); }
}

.streak-badge-inline .streak-num {
  font-family: var(--font-mono);
  font-weight: 700;
}

/* ============================================
   DAILY CHALLENGE
   ============================================ */

/* ============================================
   DAILY CHALLENGE - COMPACT BANNER
   ============================================ */

.daily-challenge {
  margin-bottom: var(--space-md);
}

/* Compact Banner */
.daily-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  gap: var(--space-sm);
}

.daily-banner-left {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.daily-banner-left .streak-fire {
  font-size: 1.1rem;
  opacity: 0.4;
  filter: grayscale(1);
  transition: all 0.3s;
}

.daily-banner-left .streak-fire.active {
  opacity: 1;
  filter: none;
  animation: fireGlow 1.5s ease-in-out infinite;
}

@keyframes fireGlow {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

.daily-banner-left .streak-count {
  font-size: 1.1rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.daily-banner-left .streak-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.daily-banner-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  border: none;
  border-radius: var(--radius-md);
  color: var(--bg-deep);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.daily-banner-btn:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 16px rgba(34, 211, 238, 0.3);
}

.daily-banner-btn.done {
  background: var(--accent-green);
}

.daily-banner-btn .daily-bonus {
  padding: 0.15rem 0.4rem;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 4px;
  font-size: 0.7rem;
}

/* Expandable Details Panel */
.daily-details {
  margin-top: var(--space-sm);
  padding: var(--space-md);
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.08), rgba(168, 85, 247, 0.08));
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: var(--radius-lg);
  animation: slideDown 0.2s ease-out;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.daily-details.hidden {
  display: none;
}

.daily-details-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xs);
}

.daily-details-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.daily-details-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 50%;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  transition: all 0.2s;
}

.daily-details-close:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}

.daily-details-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  line-height: 1.4;
}

.daily-details-stats {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.daily-mini-stat {
  flex: 1;
  text-align: center;
  padding: var(--space-xs);
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-sm);
}

.daily-mini-stat .label {
  display: block;
  font-size: 0.6rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.daily-mini-stat .value {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.daily-mini-stat.bonus .value {
  color: var(--accent-yellow);
}

.daily-start-btn {
  width: 100%;
  padding: 0.65rem 1rem;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  border: none;
  border-radius: var(--radius-md);
  color: var(--bg-deep);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.daily-start-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(34, 211, 238, 0.3);
}

.daily-done-message {
  text-align: center;
  padding: var(--space-sm);
  background: rgba(52, 211, 153, 0.15);
  border-radius: var(--radius-md);
  color: var(--accent-green);
  font-size: 0.8rem;
}

/* Completed state */
.daily-banner.completed {
  border-color: rgba(52, 211, 153, 0.3);
}

.daily-banner.completed .daily-banner-btn {
  background: var(--accent-green);
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */

.toast {
  position: fixed;
  bottom: calc(env(safe-area-inset-bottom) + 20px);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  color: var(--text-primary);
  font-size: 0.9rem;
  z-index: 1000;
  opacity: 0;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ============================================
   DAILY CHALLENGE RESULT (on Results Screen)
   ============================================ */

.daily-challenge-result {
  margin-bottom: var(--space-lg);
}

.daily-result-card {
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.15), rgba(239, 68, 68, 0.1));
  border: 2px solid rgba(251, 191, 36, 0.4);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
  animation: daily-result-appear 0.6s ease-out;
}

@keyframes daily-result-appear {
  from {
    opacity: 0;
    transform: scale(0.8) rotate(-2deg);
  }
  to {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
}

.daily-result-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-yellow), var(--accent-red), var(--accent-yellow));
  animation: gradient-shimmer 2s linear infinite;
}

@keyframes gradient-shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.daily-result-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.daily-result-icon {
  font-size: 1.5rem;
  animation: flame-dance 0.5s ease-in-out infinite alternate;
}

.daily-result-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-yellow);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.daily-result-body {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  margin-bottom: var(--space-md);
}

.daily-result-streak {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.streak-number {
  font-size: 3rem;
  font-weight: 700;
  font-family: var(--font-mono);
  background: linear-gradient(135deg, var(--accent-yellow), var(--accent-red));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.streak-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.daily-result-bonus {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-md);
  background: rgba(52, 211, 153, 0.2);
  border-radius: var(--radius-md);
}

.daily-result-bonus .bonus-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.daily-result-bonus .bonus-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-green);
  font-family: var(--font-mono);
}

.streak-message {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-top: var(--space-sm);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ============================================
   CUSTOM TEXT SCREEN
   ============================================ */

.custom-text-screen {
  padding-top: calc(env(safe-area-inset-top) + var(--space-lg));
}

.custom-text-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.custom-text-header h2 {
  flex: 1;
  font-size: 1.5rem;
  margin: 0;
}

.custom-text-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.practice-badge,
.practice-mode-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.5rem;
  background: rgba(168, 85, 247, 0.2);
  border: 1px solid rgba(168, 85, 247, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-purple);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.practice-mode-badge {
  margin-top: var(--space-sm);
  font-size: 0.75rem;
  padding: 0.35rem 0.75rem;
}

.custom-text-input-wrapper {
  margin-bottom: var(--space-lg);
}

.custom-text-input {
  width: 100%;
  min-height: 180px;
  padding: var(--space-md);
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 0.95rem;
  line-height: 1.6;
  resize: vertical;
  transition: border-color var(--transition-fast);
}

.custom-text-input:focus {
  outline: none;
  border-color: var(--accent-cyan);
}

.custom-text-input::placeholder {
  color: var(--text-muted);
}

.custom-text-stats {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-sm) var(--space-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-top: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  margin-top: -1px;
}

.custom-text-stats .stat-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.custom-text-stats .stat-icon {
  font-size: 0.9rem;
}

.custom-speed-section {
  margin-bottom: var(--space-xl);
}

.custom-speed-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.custom-speed-presets {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.custom-speed-presets .speed-preset {
  padding: 0.5rem 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.custom-speed-presets .speed-preset:hover {
  border-color: var(--accent-cyan);
  color: var(--text-primary);
}

.custom-speed-presets .speed-preset.active {
  background: var(--accent-cyan);
  border-color: var(--accent-cyan);
  color: var(--bg-deep);
}

.custom-start-btn {
  width: 100%;
  margin-bottom: var(--space-xl);
}

.custom-start-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.custom-text-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.custom-text-info .info-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.custom-text-info .info-icon {
  color: var(--accent-green);
  font-size: 0.9rem;
}

/* Login prompt for custom text */
.custom-login-prompt {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
}

.custom-login-prompt .lock-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.5;
}

.custom-login-prompt h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.custom-login-prompt p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: var(--space-lg);
}

.custom-login-prompt .btn {
  min-width: 200px;
}

/* ============================================
   STATS SCREEN
   ============================================ */

.stats-screen {
  padding-top: calc(env(safe-area-inset-top) + var(--space-lg));
  padding-bottom: calc(env(safe-area-inset-bottom) + var(--space-xl));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.stats-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.stats-header h2 {
  flex: 1;
  font-size: 1.5rem;
  margin: 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.stat-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
}

.stat-card.primary {
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(34, 211, 238, 0.05));
  border-color: rgba(34, 211, 238, 0.3);
}

.stat-card.highlight {
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.15), rgba(251, 191, 36, 0.05));
  border-color: rgba(251, 191, 36, 0.3);
}

.stat-card-icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
}

.stat-card-value {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.stat-card.primary .stat-card-value {
  color: var(--accent-cyan);
}

.stat-card.highlight .stat-card-value {
  color: var(--accent-yellow);
}

.stat-card-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stats-section {
  margin-bottom: var(--space-xl);
}

.stats-section-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.streak-stats {
  display: flex;
  gap: var(--space-md);
}

.streak-stat {
  flex: 1;
  text-align: center;
  padding: var(--space-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
}

.streak-stat-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-yellow);
}

.streak-stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.practice-stats-row,
.time-stats {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.practice-stat,
.time-stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  background: var(--glass-bg);
  border-radius: var(--radius-md);
}

.practice-stat-label,
.time-stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.practice-stat-value,
.time-stat-value {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-primary);
}

.battle-stats-row {
  display: flex;
  gap: var(--space-md);
}

.battle-mini-stat {
  flex: 1;
  text-align: center;
  padding: var(--space-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
}

.battle-mini-stat.wins .battle-mini-value {
  color: var(--accent-green);
}

.battle-mini-stat.losses .battle-mini-value {
  color: var(--accent-red);
}

.battle-mini-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
}

.battle-mini-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.achievements-progress {
  padding: var(--space-md);
  background: var(--glass-bg);
  border-radius: var(--radius-md);
}

.achievements-progress-bar {
  height: 8px;
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-sm);
  overflow: hidden;
}

.achievements-progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

.achievements-progress-text {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-align: center;
}

/* ============================================
   ENHANCED SIGN-IN MODAL
   ============================================ */

.signin-benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
}

.benefit-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.benefit-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}

/* Featured benefit cards (new features) */
.benefit-card.featured {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(34, 211, 238, 0.15));
  border-color: rgba(139, 92, 246, 0.4);
  position: relative;
  overflow: hidden;
}

.benefit-card.featured::before {
  content: 'NEW';
  position: absolute;
  top: 2px;
  right: 2px;
  font-size: 0.5rem;
  font-weight: 700;
  padding: 1px 4px;
  background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
  border-radius: 3px;
  color: white;
}

.benefit-card.featured:hover {
  border-color: var(--accent-purple);
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
}

.benefit-card .benefit-icon {
  font-size: 1.25rem;
  margin-bottom: 2px;
}

.benefit-card .benefit-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.2;
}

.benefit-card .benefit-desc {
  font-size: 0.65rem;
  color: var(--text-muted);
  line-height: 1.2;
}

@media (max-width: 400px) {
  .signin-benefits-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .benefit-card .benefit-desc {
    display: none;
  }
}

.signin-header h2 {
  font-size: 1.25rem;
  margin-bottom: var(--space-xs);
}

.signin-header p {
  color: var(--accent-green);
  font-size: 0.85rem;
  font-weight: 500;
}

.signin-footer p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ============================================
   REPORT PROBLEM
   ============================================ */

.report-link-container {
  text-align: center;
  margin-top: var(--space-xl);
  padding-bottom: var(--space-md);
}

.report-link {
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 0.75rem;
  cursor: pointer;
  opacity: 0.6;
  transition: all var(--transition-fast);
}

.report-link:hover {
  opacity: 1;
  color: var(--text-secondary);
}

.report-modal-content {
  width: 100%;
  max-width: 400px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
  position: relative;
  margin: var(--space-md) 0;
}

.report-header {
  margin-bottom: var(--space-lg);
}

.report-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
}

.report-header h2 {
  font-size: 1.25rem;
  margin-bottom: var(--space-xs);
}

.report-header p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.report-form {
  text-align: left;
}

.report-type-selector {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.report-type-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: var(--space-sm);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 0.7rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.report-type-btn span {
  font-size: 1.25rem;
}

.report-type-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--text-primary);
}

.report-type-btn.active {
  background: rgba(34, 211, 238, 0.1);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.report-textarea {
  width: 100%;
  min-height: 100px;
  padding: var(--space-md);
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 0.9rem;
  resize: vertical;
  margin-bottom: var(--space-sm);
}

.report-textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
}

.report-textarea::placeholder {
  color: var(--text-muted);
}

.report-info {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.report-submit-btn {
  width: 100%;
}

.report-success {
  padding: var(--space-xl) 0;
}

.report-success .success-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.report-success h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-xs);
}

.report-success p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ============================================
   RESPONSIVE - Tablet & Desktop
   ============================================ */

@media (min-width: 768px) {
  .features {
    gap: var(--space-md);
  }
  
  .feature {
    padding: var(--space-lg);
  }
  
  .feature-icon {
    font-size: 2rem;
  }
  
  .feature-text {
    font-size: 0.8125rem;
  }
  
  .speed-number {
    font-size: 6rem;
  }
  
  .speed-presets {
    gap: var(--space-sm);
  }
  
  .speed-pill {
    min-width: 72px;
    padding: var(--space-md) var(--space-lg);
  }
  
  .leaderboard-row {
    grid-template-columns: 60px 1fr 100px 80px;
  }
  
  .lb-time-col {
    display: block;
  }
  
  .quiz-nav {
    max-width: 400px;
    margin: 0 auto;
  }
  
  .results-actions {
    max-width: 400px;
    margin: 0 auto;
  }
}

/* ============================================
   AUTH UI STYLES
   ============================================ */

.auth-container {
  display: flex;
  align-items: center;
}

.auth-btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  font-size: 0.875rem;
}

.auth-btn .auth-icon {
  font-size: 1rem;
}

.auth-btn .auth-text {
  display: none;
}

@media (min-width: 480px) {
  .auth-btn .auth-text {
    display: inline;
  }
}

/* User Menu */
.user-menu {
  position: relative;
}

.user-avatar-btn {
  width: 40px;
  height: 40px;
  padding: 0;
  border: 2px solid var(--accent-cyan);
  border-radius: 50%;
  background: var(--bg-elevated);
  cursor: pointer;
  overflow: hidden;
  transition: all var(--transition-fast);
}

.user-avatar-btn:hover {
  border-color: var(--accent-pink);
  transform: scale(1.05);
}

.user-avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.user-initial {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-cyan);
}

/* User Dropdown */
.user-dropdown {
  position: absolute;
  top: calc(100% + var(--space-sm));
  right: 0;
  min-width: 200px;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 100;
  animation: dropdownFade 0.2s var(--ease-out-expo);
}

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

.user-info {
  padding: var(--space-md);
  text-align: center;
}

.user-name-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-2xs);
}

.user-name {
  display: block;
  font-weight: 600;
  color: var(--text-primary);
}

.edit-name-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.875rem;
  cursor: pointer;
  padding: var(--space-2xs);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  opacity: 0.7;
}

.edit-name-btn:hover {
  color: var(--accent-cyan);
  opacity: 1;
  background: var(--glass-bg);
}

.user-email {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  word-break: break-all;
}

.dropdown-divider {
  height: 1px;
  background: var(--glass-border);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-display);
  font-size: 0.875rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

.dropdown-item:hover {
  background: var(--glass-bg);
  color: var(--text-primary);
}

/* ============================================
   SIGN IN MODAL
   ============================================ */

.signin-modal-content {
  width: 100%;
  max-width: 380px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
  position: relative;
  animation: modalSlideUp 0.4s var(--ease-out-expo);
  margin: var(--space-md) 0;
}

@media (max-width: 400px) {
  .signin-modal-content {
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
  }
}

.modal-close-btn {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--glass-highlight);
  color: var(--text-primary);
}

/* Mobile touch target - make button bigger */
@media (max-width: 768px) {
  .modal-close-btn {
    width: 44px;
    height: 44px;
    font-size: 1.5rem;
    top: var(--space-sm);
    right: var(--space-sm);
    z-index: 10; /* Ensure it's above canvas */
  }
}

.signin-header {
  margin-bottom: var(--space-xl);
}

.signin-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.signin-header h2 {
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
}

.signin-header p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.signin-recommendation {
  margin-top: var(--space-xs) !important;
  font-size: 0.75rem !important;
  color: var(--accent-cyan) !important;
  opacity: 0.9;
}

.signin-benefits {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.benefit {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

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

.benefit span:last-child {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.signin-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: #fff;
  border: none;
  border-radius: var(--radius-full);
  color: #333;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-google:hover {
  background: #f5f5f5;
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.google-icon {
  flex-shrink: 0;
}

.signin-footer {
  margin-top: var(--space-xl);
}

.signin-footer p {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Auth Tabs */
.auth-tabs {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
  background: var(--glass-bg);
  border-radius: var(--radius-md);
  padding: var(--space-2xs);
}

.auth-tab {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.auth-tab.active {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

/* Highlight Google tab as preferred */
.auth-tab[data-tab="google"] {
  font-weight: 600;
}

.auth-tab[data-tab="google"].active {
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(244, 114, 182, 0.15));
  border: 1px solid rgba(34, 211, 238, 0.3);
}

.auth-tab:hover:not(.active) {
  color: var(--text-secondary);
}

/* Auth Forms */
.auth-form {
  display: none;
}

.auth-form.active {
  display: block;
}

.email-form {
  text-align: left;
}

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

.form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

.input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-primary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9375rem;
  font-family: var(--font-display);
  transition: all var(--transition-fast);
  box-sizing: border-box;
}

.input:focus {
  outline: none;
  border-color: var(--accent-cyan);
  background: var(--bg-elevated);
}

.input::placeholder {
  color: var(--text-muted);
}

.input.input-error {
  border-color: var(--accent-red);
  background: rgba(248, 113, 113, 0.1);
}

.input.input-error:focus {
  border-color: var(--accent-red);
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.2);
}

.btn-block {
  width: 100%;
  margin-top: var(--space-md);
}

.btn-small {
  padding: var(--space-xs) var(--space-md);
  font-size: 0.875rem;
}

.auth-error {
  padding: var(--space-sm);
  background: rgba(248, 113, 113, 0.15);
  border: 1px solid rgba(248, 113, 113, 0.3);
  border-radius: var(--radius-md);
  color: var(--accent-red);
  font-size: 0.875rem;
  margin-bottom: var(--space-md);
  text-align: center;
}

.auth-success {
  padding: var(--space-sm);
  background: rgba(52, 211, 153, 0.15);
  border: 1px solid rgba(52, 211, 153, 0.3);
  border-radius: var(--radius-md);
  color: var(--accent-green);
  font-size: 0.875rem;
  margin-bottom: var(--space-md);
  text-align: center;
}

.auth-switch {
  text-align: center;
  margin-top: var(--space-md);
  color: var(--text-muted);
  font-size: 0.875rem;
}

.btn-link {
  background: none;
  border: none;
  color: var(--accent-cyan);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0;
  margin-left: var(--space-xs);
  text-decoration: underline;
  transition: color var(--transition-fast);
}

.btn-link:hover {
  color: var(--accent-pink);
}

.auth-divider {
  display: flex;
  align-items: center;
  margin: var(--space-lg) 0;
  color: var(--text-muted);
  font-size: 0.75rem;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--glass-border);
}

.auth-divider span {
  padding: 0 var(--space-md);
}

.auth-info {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--space-md);
  text-align: center;
}

.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  background: #ffffff;
  color: #5f6368;
  border: 1px solid #dadce0;
}

.btn-google:hover {
  background: #f8f9fa;
  border-color: #dadce0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.google-icon {
  flex-shrink: 0;
}

/* ============================================
   LEADERBOARD TABS
   ============================================ */

.leaderboard-tabs {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
  background: var(--bg-elevated);
  padding: var(--space-xs);
  border-radius: var(--radius-full);
}

.lb-tab {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  background: transparent;
  border: none;
  border-radius: var(--radius-full);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lb-tab:hover {
  color: var(--text-primary);
}

.lb-tab.active {
  background: var(--gradient-primary);
  color: var(--bg-deep);
}

/* Global Sign-in Prompt */
.global-signin-prompt {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
}

.signin-prompt-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.global-signin-prompt h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.global-signin-prompt p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--space-lg);
  max-width: 280px;
  margin-left: auto;
  margin-right: auto;
}

/* Leaderboard Loading */
.leaderboard-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-2xl);
  color: var(--text-muted);
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--bg-elevated);
  border-top-color: var(--accent-cyan);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================
   SAVE SECTION UPDATES
   ============================================ */

.global-save-section {
  margin-top: var(--space-md);
}

.global-save-section .btn {
  width: 100%;
}

.save-signin-prompt {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: var(--radius-lg);
  flex-wrap: wrap;
}

.prompt-text {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.btn-small {
  padding: var(--space-xs) var(--space-md);
  font-size: 0.8125rem;
}

/* Cloud sync indicator */
.sync-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  color: var(--accent-green);
}

.sync-indicator.syncing {
  background: rgba(251, 191, 36, 0.1);
  border-color: rgba(251, 191, 36, 0.3);
  color: var(--accent-yellow);
}

/* Global rank badge */
.global-rank-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(244, 114, 182, 0.15));
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-top: var(--space-md);
}

.global-rank-badge .rank-number {
  font-family: var(--font-mono);
}

/* Leaderboard row for current user */
.leaderboard-row.current-user {
  background: rgba(34, 211, 238, 0.1);
  border-left: 3px solid var(--accent-cyan);
}

/* You badge */
.you-badge {
  display: inline-block;
  padding: 2px 6px;
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  background: var(--accent-cyan);
  color: var(--bg-deep);
  border-radius: var(--radius-full);
  margin-left: var(--space-xs);
  vertical-align: middle;
}

/* Avatar image in leaderboard */
.lb-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

/* Saved button state */
.btn.saved {
  background: var(--accent-green);
  color: var(--bg-deep);
}

/* Firebase not configured notice */
.firebase-notice {
  text-align: center;
  padding: var(--space-lg);
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.3);
  border-radius: var(--radius-lg);
  margin: var(--space-md) 0;
}

.firebase-notice p {
  color: var(--accent-yellow);
  font-size: 0.875rem;
  margin-bottom: var(--space-sm);
}

.firebase-notice code {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-primary);
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  margin-top: var(--space-sm);
}

/* ============================================
   ENHANCED SHARE BUTTONS
   ============================================ */

.share-buttons-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

@media (min-width: 480px) {
  .share-buttons-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.btn-share {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2xs);
  padding: var(--space-md);
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-share:hover {
  background: var(--glass-highlight);
  border-color: var(--accent-cyan);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.btn-share .share-icon {
  font-size: 1.5rem;
}

.btn-share-native {
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(244, 114, 182, 0.15));
  border-color: var(--accent-cyan);
  color: var(--text-primary);
}

.btn-share-whatsapp:hover {
  border-color: #25D366;
  background: rgba(37, 211, 102, 0.1);
}

/* ============================================
   ENHANCED CHALLENGE SECTION
   ============================================ */

.challenge-section-enhanced {
  background: linear-gradient(135deg, rgba(244, 114, 182, 0.1), rgba(251, 191, 36, 0.1));
  border: 2px solid rgba(244, 114, 182, 0.3);
  padding: var(--space-xl);
}

.challenge-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

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

.challenge-header h4 {
  font-size: 1.25rem;
  background: linear-gradient(135deg, #f472b6, #fbbf24);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.challenge-desc {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: var(--space-lg);
}

.challenge-desc strong {
  color: var(--accent-pink);
  font-family: var(--font-mono);
}

.challenge-preview {
  text-align: center;
  padding: var(--space-lg);
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
}

.challenge-preview-score {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 700;
  background: linear-gradient(135deg, #f472b6, #fbbf24);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.challenge-preview-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: var(--space-xs);
}

.challenge-actions {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.btn-challenge-copy {
  flex: 2;
}

.btn-challenge-wa {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-width: 0; /* Allow flex shrinking */
}

.challenge-wa-icon {
  font-size: 1.25rem;
  line-height: 1;
  display: inline-block;
  flex-shrink: 0;
}

/* Mobile: Make WhatsApp button more visible */
@media (max-width: 768px) {
  .btn-challenge-wa {
    flex: 1.2;
    font-size: 0.875rem;
    padding: var(--space-sm) var(--space-xs);
  }
  
  .challenge-wa-icon {
    font-size: 1.5rem;
  }
  
  /* Stack buttons vertically on very small screens if needed */
  @media (max-width: 360px) {
    .challenge-actions {
      flex-direction: column;
    }
    
    .btn-challenge-copy,
    .btn-challenge-wa {
      flex: 1;
      width: 100%;
    }
  }
}

.challenge-link-input {
  width: 100%;
  padding: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 16px; /* Prevent iOS zoom (0.6875rem = 11px causes zoom) */
  background: var(--bg-primary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  text-align: center;
}

@media (min-width: 768px) {
  .challenge-link-input {
    font-size: 0.6875rem; /* Can use smaller size on desktop */
  }
}

/* ============================================
   ENHANCED CHALLENGE BANNER (for challengers)
   ============================================ */

.challenge-banner {
  position: relative;
  background: linear-gradient(135deg, #1a0a12 0%, #0a0a14 50%, #0a1214 100%);
  border: 2px solid transparent;
  background-clip: padding-box;
  overflow: hidden;
}

.challenge-banner::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, #f472b6, #fbbf24, #22d3ee);
  border-radius: inherit;
  z-index: -1;
  animation: challengeBorderRotate 3s linear infinite;
}

@keyframes challengeBorderRotate {
  0% { filter: hue-rotate(0deg); }
  100% { filter: hue-rotate(360deg); }
}

.challenge-banner-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(244, 114, 182, 0.3) 0%, transparent 60%);
  pointer-events: none;
}

.challenge-banner-content {
  position: relative;
  z-index: 1;
  padding: var(--space-xl);
  text-align: center;
}

.challenge-banner-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
  animation: swordPulse 1.5s ease-in-out infinite;
}

@keyframes swordPulse {
  0%, 100% { transform: scale(1) rotate(-5deg); }
  50% { transform: scale(1.1) rotate(5deg); }
}

.challenge-banner h3 {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent-pink);
  margin-bottom: var(--space-sm);
}

.challenge-banner .opponent {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.challenge-banner .opponent span {
  color: var(--text-primary);
  font-weight: 600;
}

.challenge-target {
  padding: var(--space-lg);
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
}

.target-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.target-score {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--space-xs);
}

.target-score span:first-child {
  font-family: var(--font-mono);
  font-size: 3.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #fbbf24, #f472b6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: scorePulse 2s ease-in-out infinite;
}

@keyframes scorePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

.target-unit {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 600;
}

.challenge-taunt {
  font-size: 0.875rem;
  color: var(--accent-yellow);
  font-style: italic;
}

/* ============================================
   CHALLENGE RESULT - DRAMATIC REVEAL
   ============================================ */

.challenge-result-card {
  animation: revealSlideIn 0.6s var(--ease-out-expo);
}

@keyframes revealSlideIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.challenge-reveal {
  text-align: center;
}

.reveal-header {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
  animation: revealPulse 0.5s ease-out;
}

@keyframes revealPulse {
  0% { transform: scale(0.5); opacity: 0; }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); opacity: 1; }
}

.challenge-result-card.win .reveal-header {
  color: var(--accent-green);
  text-shadow: 0 0 30px rgba(52, 211, 153, 0.5);
}

.challenge-result-card.lose .reveal-header {
  color: var(--accent-red);
}

.reveal-scores {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.reveal-score {
  text-align: center;
  padding: var(--space-md) var(--space-lg);
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-lg);
  border: 2px solid transparent;
  min-width: 100px;
  transition: all 0.3s ease;
}

.reveal-score.winner {
  border-color: var(--accent-green);
  background: rgba(52, 211, 153, 0.1);
  transform: scale(1.05);
}

.reveal-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.reveal-value {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.reveal-score.winner .reveal-value {
  color: var(--accent-green);
}

.reveal-vs {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-muted);
  padding: var(--space-sm);
  background: var(--bg-elevated);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.reveal-diff {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.reveal-diff strong {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.reveal-taunt {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-style: italic;
}

/* ============================================
   BATTLE HISTORY SCREEN
   ============================================ */

.battles-screen {
  padding-top: var(--space-xl);
}

.battles-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.battles-header h2 {
  flex: 1;
  font-size: 1.5rem;
}

.battles-record {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  padding: var(--space-xs) var(--space-md);
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.2), rgba(248, 113, 113, 0.2));
  border-radius: var(--radius-full);
  color: var(--text-primary);
}

/* Stats Summary */
.battles-summary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-xl);
}

.battle-stat {
  text-align: center;
  flex: 1;
}

.battle-stat-value {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
}

.battle-stat.wins .battle-stat-value {
  color: var(--accent-green);
}

.battle-stat.losses .battle-stat-value {
  color: var(--accent-red);
}

.battle-stat.winrate .battle-stat-value {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.battle-stat-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

.battle-stat-divider {
  width: 1px;
  height: 40px;
  background: var(--glass-border);
}

/* Battle List */
.battles-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* Battle Card */
.battle-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-fast);
}

.battle-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.battle-card.win::before {
  background: linear-gradient(90deg, var(--accent-green), var(--accent-cyan));
}

.battle-card.loss::before {
  background: linear-gradient(90deg, var(--accent-red), var(--accent-pink));
}

.battle-card.tie::before {
  background: linear-gradient(90deg, var(--accent-yellow), var(--accent-purple));
}

.battle-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.15);
}

/* Result Badge */
.battle-result-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.battle-card.win .battle-result-badge {
  background: rgba(52, 211, 153, 0.15);
  color: var(--accent-green);
}

.battle-card.loss .battle-result-badge {
  background: rgba(248, 113, 113, 0.15);
  color: var(--accent-red);
}

.battle-card.tie .battle-result-badge {
  background: rgba(251, 191, 36, 0.15);
  color: var(--accent-yellow);
}

.badge-icon {
  font-size: 1rem;
}

/* Matchup */
.battle-matchup {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.battle-player {
  flex: 1;
  text-align: center;
}

.battle-player.opponent {
  text-align: center;
}

.player-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100px;
}

.player-score {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.player-score.winner {
  color: var(--accent-green);
}

.battle-vs {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  padding: var(--space-xs) var(--space-sm);
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
}

/* Footer */
.battle-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  border-top: 1px solid var(--glass-border);
}

.battle-diff {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
}

.battle-card.win .battle-diff {
  color: var(--accent-green);
}

.battle-card.loss .battle-diff {
  color: var(--accent-red);
}

.battle-card.tie .battle-diff {
  color: var(--accent-yellow);
}

.battle-time {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Battle Actions (Rematch Button) */
.battle-actions {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--glass-border);
  display: flex;
  justify-content: center;
}

.battle-rematch-btn {
  font-size: 0.875rem;
  padding: var(--space-xs) var(--space-md);
}

/* Challenge Login Prompt */
.challenge-login-prompt {
  position: fixed;
  bottom: calc(env(safe-area-inset-bottom) + 20px);
  left: 50%;
  transform: translateX(-50%) translateY(120px);
  max-width: 500px;
  width: calc(100% - var(--space-xl));
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  z-index: 1001;
  opacity: 0;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
}

.challenge-login-prompt.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.prompt-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: center;
  text-align: center;
}

.prompt-icon {
  font-size: 2rem;
  line-height: 1;
}

.prompt-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.prompt-text strong {
  color: var(--text-primary);
  font-size: 0.95rem;
}

.prompt-text span {
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.prompt-actions {
  display: flex;
  gap: var(--space-sm);
  width: 100%;
  margin-top: var(--space-xs);
}

.prompt-signin-btn,
.prompt-dismiss-btn {
  flex: 1;
  font-size: 0.875rem;
  padding: var(--space-sm) var(--space-md);
}

@media (max-width: 768px) {
  .challenge-login-prompt {
    width: calc(100% - var(--space-md));
    left: var(--space-md);
    transform: translateX(0) translateY(120px);
  }
  
  .challenge-login-prompt.show {
    transform: translateX(0) translateY(0);
  }
  
  .prompt-actions {
    flex-direction: column;
  }
  
  .prompt-signin-btn,
  .prompt-dismiss-btn {
    width: 100%;
  }
}

/* Empty State */
.battles-empty {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
}

.battles-empty .empty-icon {
  font-size: 4rem;
  margin-bottom: var(--space-lg);
  opacity: 0.5;
}

.battles-empty h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.battles-empty p {
  color: var(--text-muted);
  font-size: 0.875rem;
  max-width: 280px;
  margin: 0 auto;
}

/* ============================================
   GOD MODE EFFECTS
   ============================================ */

.god-mode-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 150;
}

.particles-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.god-mode-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at center,
    transparent 0%,
    transparent 50%,
    rgba(239, 68, 68, 0.1) 80%,
    rgba(239, 68, 68, 0.3) 100%
  );
  animation: vignetteFlicker 0.5s ease-in-out infinite;
}

@keyframes vignetteFlicker {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.speed-lines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 20px,
    rgba(255, 255, 255, 0.03) 20px,
    rgba(255, 255, 255, 0.03) 21px
  );
  animation: speedLinesMove 0.1s linear infinite;
}

@keyframes speedLinesMove {
  from { transform: translateX(0); }
  to { transform: translateX(-21px); }
}

/* GOD MODE word display enhancement */
.reader-screen.god-mode .word-display {
  animation: godModeGlow 0.3s ease-in-out infinite;
}

@keyframes godModeGlow {
  0%, 100% { 
    text-shadow: 
      0 0 20px rgba(239, 68, 68, 0.5),
      0 0 40px rgba(251, 191, 36, 0.3),
      0 0 60px rgba(236, 72, 153, 0.2);
    transform: scale(1);
  }
  50% { 
    text-shadow: 
      0 0 30px rgba(239, 68, 68, 0.7),
      0 0 60px rgba(251, 191, 36, 0.5),
      0 0 90px rgba(236, 72, 153, 0.3);
    transform: scale(1.02);
  }
}

.reader-screen.god-mode .word-display .orp {
  color: #ef4444;
  animation: orpFlash 0.2s ease-in-out infinite;
}

@keyframes orpFlash {
  0%, 100% { color: #ef4444; }
  33% { color: #fbbf24; }
  66% { color: #ec4899; }
}

/* Screen shake for god mode */
.reader-screen.god-mode.screen-shake {
  animation: screenShake 0.1s ease-in-out;
}

@keyframes screenShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-3px) rotate(-0.5deg); }
  75% { transform: translateX(3px) rotate(0.5deg); }
}

/* Extreme mode (1200+ WPM) */
.reader-screen.extreme-mode .word-display {
  font-size: clamp(2.5rem, 15vw, 6rem);
  animation: extremePulse 0.15s ease-in-out infinite;
}

@keyframes extremePulse {
  0%, 100% { 
    transform: scale(1);
    filter: brightness(1);
  }
  50% { 
    transform: scale(1.05);
    filter: brightness(1.3);
  }
}

.reader-screen.extreme-mode .word-display .orp {
  animation: extremeOrpCycle 0.1s linear infinite;
}

@keyframes extremeOrpCycle {
  0% { color: #22d3ee; text-shadow: 0 0 30px #22d3ee; }
  25% { color: #a78bfa; text-shadow: 0 0 30px #a78bfa; }
  50% { color: #f472b6; text-shadow: 0 0 30px #f472b6; }
  75% { color: #fbbf24; text-shadow: 0 0 30px #fbbf24; }
  100% { color: #22d3ee; text-shadow: 0 0 30px #22d3ee; }
}

/* ============================================
   SPEEDRUN OVERLAY
   ============================================ */

.speedrun-overlay {
  position: absolute;
  bottom: calc(120px + env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  z-index: 160;
}

.speedrun-timer {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  background: rgba(0, 0, 0, 0.8);
  border: 2px solid var(--accent-cyan);
  border-radius: var(--radius-full);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.3);
}

.timer-icon {
  font-size: 1rem;
}

.speedrun-time {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-cyan);
  min-width: 80px;
  text-align: center;
}

.speedrun-stats {
  display: flex;
  gap: var(--space-md);
}

.speedrun-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-xs) var(--space-md);
  background: rgba(0, 0, 0, 0.6);
  border-radius: var(--radius-md);
}

.live-wpm {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-pink);
}

.words-remaining {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-yellow);
}

.speedrun-stat .stat-label {
  font-size: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

/* Personal Best flash */
.speedrun-overlay.new-pb .speedrun-timer {
  border-color: var(--accent-green);
  animation: pbFlash 0.5s ease-out;
  box-shadow: 0 0 30px rgba(52, 211, 153, 0.5);
}

@keyframes pbFlash {
  0% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

/* Hide speedrun overlay when paused */
.reader-screen:not(.reading) .speedrun-overlay {
  opacity: 0.3;
}

/* ============================================
   CHAOS MODE STYLES
   ============================================ */

.chaos-mode-toggle-wrapper {
  margin-top: var(--space-lg);
  padding: var(--space-md);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(239, 68, 68, 0.1));
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: var(--radius-lg);
  text-align: center;
}

.chaos-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  user-select: none;
}

.chaos-toggle input {
  display: none;
}

.chaos-slider {
  width: 50px;
  height: 26px;
  background: var(--bg-elevated);
  border-radius: 13px;
  position: relative;
  transition: background 0.3s;
}

.chaos-slider::before {
  content: '';
  position: absolute;
  left: 3px;
  top: 3px;
  width: 20px;
  height: 20px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: all 0.3s;
}

.chaos-toggle input:checked + .chaos-slider {
  background: linear-gradient(135deg, #8b5cf6, #ef4444);
}

.chaos-toggle input:checked + .chaos-slider::before {
  left: 27px;
  background: white;
}

.chaos-label {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
}

.chaos-hint {
  display: block;
  margin-top: var(--space-xs);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Chaos word effects */
.chaos-wobble {
  animation: chaosWobble 0.1s ease-in-out infinite;
}

@keyframes chaosWobble {
  0%, 100% { transform: rotate(-2deg); }
  50% { transform: rotate(2deg); }
}

.chaos-glitch {
  animation: chaosGlitch 0.1s steps(2) infinite;
}

@keyframes chaosGlitch {
  0% { 
    clip-path: inset(20% 0 30% 0);
    transform: translate(-2px, 2px);
  }
  25% {
    clip-path: inset(50% 0 10% 0);
    transform: translate(2px, -2px);
  }
  50% {
    clip-path: inset(10% 0 60% 0);
    transform: translate(-1px, 1px);
  }
  75% {
    clip-path: inset(40% 0 20% 0);
    transform: translate(1px, -1px);
  }
  100% {
    clip-path: inset(0);
    transform: translate(0);
  }
}

/* Chaos background effect */
.reader-screen.chaos-active {
  animation: chaosBackground 2s ease-in-out infinite;
}

@keyframes chaosBackground {
  0%, 100% { filter: hue-rotate(0deg); }
  50% { filter: hue-rotate(30deg); }
}

/* ============================================
   COUNTRY SELECTOR MODAL
   ============================================ */

.country-modal-content {
  max-width: 500px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
}

.country-selector {
  flex: 1;
  overflow-y: auto;
  margin: var(--space-md) 0;
}

.country-search {
  width: 100%;
  padding: var(--space-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 16px; /* Prevent iOS zoom (0.9375rem = 15px might cause zoom) */
  margin-bottom: var(--space-md);
}

@media (min-width: 768px) {
  .country-search {
    font-size: 0.9375rem; /* Can use smaller size on desktop */
  }
}

.country-search:focus {
  outline: none;
  border-color: var(--accent-cyan);
}

.country-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.country-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
  width: 100%;
}

.country-item:hover {
  background: var(--glass-highlight);
  border-color: var(--accent-cyan);
  transform: translateX(4px);
}

.country-item.selected {
  background: linear-gradient(90deg, rgba(34, 211, 238, 0.15), transparent);
  border-color: var(--accent-cyan);
}

.country-flag {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
}

.country-name {
  flex: 1;
}

.country-check {
  color: var(--accent-cyan);
  font-weight: 700;
  flex-shrink: 0;
}

.country-modal-footer {
  padding-top: var(--space-md);
  border-top: 1px solid var(--glass-border);
}

/* ============================================
   READING DNA MODAL STYLES
   ============================================ */

.dna-modal-content {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--glass-border);
  padding: var(--space-lg);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  z-index: 1; /* Ensure content is above overlay */
}

.dna-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.dna-icon {
  font-size: 3rem;
  margin-bottom: var(--space-sm);
  animation: dnaPulse 2s ease-in-out infinite;
}

@keyframes dnaPulse {
  0%, 100% { transform: scale(1) rotate(0deg); }
  50% { transform: scale(1.1) rotate(10deg); }
}

.dna-header h2 {
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dna-header p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.dna-visual-container {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-lg);
  padding: var(--space-md);
  background: radial-gradient(circle at center, rgba(34, 211, 238, 0.1) 0%, transparent 70%);
  border-radius: var(--radius-lg);
}

#dna-canvas {
  border-radius: var(--radius-md);
  max-width: 100%;
  height: auto;
}

.dna-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.dna-stat {
  padding: var(--space-sm);
  background: var(--glass-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  text-align: center;
}

.dna-stat-label {
  display: block;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.dna-stat-value {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.dna-actions {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.dna-actions .btn {
  flex: 1;
}

.dna-info {
  text-align: center;
  padding: var(--space-sm);
  background: var(--glass-bg);
  border-radius: var(--radius-md);
}

.dna-info p {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

/* DNA Modal Responsive */
@media (max-width: 480px) {
  .dna-modal-content {
    padding: var(--space-md);
  }
  
  .dna-stats {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .dna-stat {
    padding: var(--space-xs);
  }
  
  .dna-stat-value {
    font-size: 0.875rem;
  }
  
  .dna-actions {
    flex-direction: column;
  }
}

/* ============================================
   EDIT NAME MODAL
   ============================================ */

.modal-description {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
  text-align: center;
}

.input-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
  text-align: center;
}

.modal-footer {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.modal-footer .btn {
  flex: 1;
}