/**
 * DropSpace Word Game - Styles
 * Modern, responsive design with dark theme
 */

/* ============================================
   CSS Variables
   ============================================ */

:root {
  /* Colors - Cyberpunk inspired palette */
  --color-bg-primary: #0a0a0f;
  --color-bg-secondary: #12121a;
  --color-bg-card: #1a1a24;
  --color-bg-elevated: #22222e;
  
  --color-accent-primary: #00f5d4;
  --color-accent-secondary: #7b61ff;
  --color-accent-tertiary: #ff6b6b;
  --color-accent-gold: #ffd93d;
  
  --color-text-primary: #ffffff;
  --color-text-secondary: #a0a0b0;
  --color-text-muted: #6a6a7a;
  
  --color-success: #00f5d4;
  --color-warning: #ffd93d;
  --color-error: #ff6b6b;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #00f5d4 0%, #7b61ff 100%);
  --gradient-secondary: linear-gradient(135deg, #7b61ff 0%, #ff6b6b 100%);
  --gradient-bg: radial-gradient(ellipse at top, #1a1a24 0%, #0a0a0f 100%);
  
  /* Typography */
  --font-primary: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(0, 245, 212, 0.3);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
}

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

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

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

body {
  font-family: var(--font-primary);
  background: var(--gradient-bg);
  background-attachment: fixed;
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
  color: var(--color-accent-secondary);
}

button {
  font-family: var(--font-primary);
  cursor: pointer;
  border: none;
  outline: none;
}

input {
  font-family: var(--font-primary);
  border: none;
  outline: none;
}

/* ============================================
   Header
   ============================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.logo-icon {
  font-size: 1.75rem;
}

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

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-link {
  color: var(--color-text-secondary);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text-primary);
  background: rgba(255, 255, 255, 0.05);
}

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

.hero {
  min-height: 100vh;
  padding: calc(80px + var(--spacing-2xl)) var(--spacing-lg) var(--spacing-2xl);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  z-index: 1;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
}

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

.hero-description {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-2xl);
}

/* Floating words animation */
.hero-visual {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.floating-words {
  position: relative;
  width: 100%;
  height: 100%;
}

.floating-word {
  position: absolute;
  font-size: 1.5rem;
  font-weight: 600;
  color: rgba(123, 97, 255, 0.15);
  left: var(--x);
  top: var(--y);
  animation: float 8s ease-in-out infinite;
  animation-delay: var(--delay);
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.1; }
  50% { transform: translateY(-30px) rotate(5deg); opacity: 0.2; }
}

/* ============================================
   Room & Mode Selection
   ============================================ */

.section-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-secondary);
}

.room-selection,
.mode-selection {
  margin-bottom: var(--spacing-2xl);
}

.room-cards,
.mode-cards {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
}

.room-card,
.mode-card {
  background: var(--color-bg-card);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  min-width: 140px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  transition: all var(--transition-fast);
}

.room-card:hover,
.mode-card:hover {
  background: var(--color-bg-elevated);
  transform: translateY(-2px);
}

.room-card.selected,
.mode-card.selected {
  border-color: var(--color-accent-primary);
  box-shadow: var(--shadow-glow);
}

.room-flag {
  font-size: 2rem;
}

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

.room-players {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.mode-icon {
  font-size: 2.5rem;
}

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

.mode-description {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-align: center;
}

/* ============================================
   Play Button
   ============================================ */

.play-section {
  margin-top: var(--spacing-xl);
}

.play-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-bg-primary);
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
}

.play-button:not(:disabled):hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-glow);
}

.play-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.play-hint {
  margin-top: var(--spacing-md);
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* ============================================
   Sections
   ============================================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.how-to-play,
.game-modes,
.features {
  padding: var(--spacing-3xl) var(--spacing-lg);
}

.how-to-play {
  background: var(--color-bg-secondary);
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.step {
  text-align: center;
}

.step-number {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  color: var(--color-bg-primary);
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
}

.step h3 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
}

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

/* Game Modes Detail */
.modes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.mode-detail {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
}

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

.mode-icon-large {
  font-size: 2.5rem;
}

.mode-detail h3 {
  font-size: 1.5rem;
}

.mode-features {
  list-style: none;
  margin-bottom: var(--spacing-lg);
}

.mode-features li {
  padding: var(--spacing-sm) 0;
  padding-left: var(--spacing-lg);
  position: relative;
  color: var(--color-text-secondary);
}

.mode-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent-primary);
}

.mode-example {
  background: var(--color-bg-secondary);
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.feature {
  text-align: center;
  padding: var(--spacing-lg);
}

.feature-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: var(--spacing-md);
}

.feature h3 {
  margin-bottom: var(--spacing-sm);
}

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

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

.site-footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-xl);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand .logo-icon,
.footer-brand .logo-text {
  display: inline;
}

.footer-tagline {
  color: var(--color-text-muted);
  margin-top: var(--spacing-sm);
}

.footer-links h4 {
  font-size: 0.875rem;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.footer-note {
  margin-top: var(--spacing-sm);
}

/* ============================================
   Screen Overlays (Matchmaking, Game, End)
   ============================================ */

.screen {
  position: fixed;
  inset: 0;
  background: var(--color-bg-primary);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
}

.screen.hidden {
  display: none;
}

/* Matchmaking Screen */
.matchmaking-screen {
  text-align: center;
}

.matchmaking-content h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-xl);
}

.spinner {
  width: 60px;
  height: 60px;
  border: 4px solid var(--color-bg-elevated);
  border-top-color: var(--color-accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--spacing-xl);
}

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

.queue-info {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

.cancel-button {
  padding: var(--spacing-md) var(--spacing-xl);
  background: transparent;
  border: 2px solid var(--color-text-muted);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.cancel-button:hover {
  border-color: var(--color-error);
  color: var(--color-error);
}

/* Game Screen */
.game-screen {
  width: 100%;
  max-width: 800px;
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.game-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-lg);
}

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

.player-name {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.player-score {
  font-size: 2.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.my-info .player-score {
  color: var(--color-accent-primary);
}

.opponent-info .player-score {
  color: var(--color-accent-secondary);
}

.vs {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-muted);
}

.round-info {
  text-align: center;
}

.round-number {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.timer {
  font-size: 3rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-accent-primary);
}

.timer.timer-warning {
  color: var(--color-error);
  animation: pulse 0.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.prompt-area {
  background: var(--color-bg-card);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  text-align: center;
}

.prompt-text,
.definition-text {
  font-size: 1.25rem;
  line-height: 1.6;
}

.definition-text {
  font-style: italic;
  color: var(--color-text-secondary);
}

.answer-area {
  display: flex;
  gap: var(--spacing-md);
}

.answer-input {
  flex: 1;
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 1.125rem;
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.answer-input:focus {
  border-color: var(--color-accent-primary);
}

.answer-input:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.submit-button {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
  font-weight: 600;
  background: var(--gradient-primary);
  color: var(--color-bg-primary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.submit-button:not(:disabled):hover {
  transform: scale(1.02);
}

.submit-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Result Overlay */
.result-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 15, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

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

.result-content {
  text-align: center;
  padding: var(--spacing-2xl);
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  max-width: 400px;
}

.result-content h3 {
  margin-bottom: var(--spacing-lg);
}

.correct-answer {
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-sm);
}

.correct-answer strong {
  color: var(--color-accent-primary);
}

.answers-comparison {
  display: flex;
  gap: var(--spacing-xl);
  justify-content: center;
}

.my-answer,
.opponent-answer {
  text-align: center;
}

.my-answer .label,
.opponent-answer .label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xs);
}

.answer-text {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.score {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
}

.my-answer .score {
  color: var(--color-accent-primary);
}

.opponent-answer .score {
  color: var(--color-accent-secondary);
}

.game-footer {
  text-align: center;
}

.report-button {
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: 1px solid var(--color-text-muted);
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.report-button:hover {
  border-color: var(--color-error);
  color: var(--color-error);
}

/* End Screen */
.end-screen {
  text-align: center;
}

.end-content {
  max-width: 400px;
  padding: var(--spacing-2xl);
}

.result-message h2 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
}

.result-message.win h2 {
  color: var(--color-success);
}

.result-message.lose h2 {
  color: var(--color-error);
}

.result-message.draw h2 {
  color: var(--color-warning);
}

.disconnect-note {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.final-scores {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xl);
  margin: var(--spacing-2xl) 0;
}

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

.score-box .name {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xs);
}

.score-box .score {
  font-size: 3rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.my-score .score {
  color: var(--color-accent-primary);
}

.opponent-score .score {
  color: var(--color-accent-secondary);
}

.score-divider {
  font-size: 2rem;
  color: var(--color-text-muted);
}

.end-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.play-again-button {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1.125rem;
  font-weight: 600;
  background: var(--gradient-primary);
  color: var(--color-bg-primary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.play-again-button:hover {
  transform: scale(1.02);
}

.share-button {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
  background: transparent;
  border: 2px solid var(--color-text-muted);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.share-button:hover {
  border-color: var(--color-accent-primary);
  color: var(--color-accent-primary);
}

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

@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .nav-links {
    gap: var(--spacing-md);
  }
  
  .hero {
    padding-top: calc(120px + var(--spacing-xl));
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .game-header {
    flex-direction: column;
  }
  
  .answer-area {
    flex-direction: column;
  }
  
  .answers-comparison {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
}

/* ============================================
   Accessibility
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

:focus-visible {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
}

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

/* ============================================
   Featured Mode Card (Kim 500 Milyar İster)
   ============================================ */

.mode-card.featured {
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.1) 0%, rgba(123, 97, 255, 0.1) 100%);
  border: 2px solid rgba(255, 215, 0, 0.3);
  position: relative;
  overflow: hidden;
}

.mode-card.featured::before {
  content: '🔥 YENİ';
  position: absolute;
  top: 8px;
  right: -30px;
  background: var(--color-accent-gold);
  color: var(--color-bg-primary);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 4px 35px;
  transform: rotate(45deg);
}

.mode-card.featured:hover {
  border-color: var(--color-accent-gold);
  box-shadow: 0 0 30px rgba(255, 215, 0, 0.3);
}

.mode-card.featured.selected {
  border-color: var(--color-accent-gold);
  box-shadow: 0 0 40px rgba(255, 215, 0, 0.4);
}

/* Featured Mode Detail */
.mode-detail.featured-mode {
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.05) 0%, rgba(123, 97, 255, 0.05) 100%);
  border: 1px solid rgba(255, 215, 0, 0.2);
}

.mode-detail .highlight {
  color: var(--color-accent-gold);
  font-weight: 700;
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

/* ============================================
   Word Chain Mode Styles
   ============================================ */

.word-chain-mode .vs {
  font-size: 2rem;
}

.turn-indicator {
  text-align: center;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.turn-indicator.my-turn {
  background: linear-gradient(135deg, rgba(0, 245, 212, 0.1) 0%, rgba(0, 245, 212, 0.05) 100%);
  color: var(--color-accent-primary);
  border: 2px solid var(--color-accent-primary);
  animation: glowPulse 2s ease-in-out infinite;
}

.turn-indicator.opponent-turn {
  background: var(--color-bg-card);
  color: var(--color-text-muted);
  border: 2px solid var(--color-bg-elevated);
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 10px rgba(0, 245, 212, 0.3); }
  50% { box-shadow: 0 0 25px rgba(0, 245, 212, 0.5); }
}

.chain-display {
  background: var(--color-bg-card);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  text-align: center;
}

.current-word {
  margin-bottom: var(--spacing-md);
}

.word-label, .letter-label {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xs);
}

.word-text {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.letter-text {
  font-size: 3rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-accent-primary);
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.chain-history {
  background: var(--color-bg-secondary);
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  margin-top: var(--spacing-md);
}

.history-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.history-words {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  word-break: break-all;
}

.history-word {
  color: var(--color-accent-secondary);
}

.waiting-message {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--color-text-muted);
}

.waiting-message p {
  font-size: 1.125rem;
}

.chain-result .result-content h3 {
  font-size: 2rem;
}

.chain-result .answer-shown {
  margin: var(--spacing-md) 0;
  font-size: 1.125rem;
}

.chain-result .reason {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* ============================================
   Trivia Mode Styles (Kim 500 Milyar İster)
   ============================================ */

.trivia-mode {
  position: relative;
}

.trivia-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-lg);
}

.trivia-header .vs {
  font-size: 2.5rem;
}

.player-prize {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.my-info .player-prize {
  color: var(--color-accent-gold);
}

.opponent-info .player-prize {
  color: var(--color-accent-secondary);
}

.question-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-bg-card);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
}

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

.q-num {
  font-weight: 700;
  color: var(--color-text-primary);
}

.prize-amount {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-accent-gold);
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(255, 215, 0, 0.1);
  border-radius: var(--radius-sm);
}

.prize-amount.safe-point {
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.2) 0%, rgba(0, 245, 212, 0.2) 100%);
  border: 1px solid var(--color-accent-gold);
}

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

.trivia-timer {
  font-size: 2rem !important;
}

/* Prize Ladder */
.prize-ladder {
  position: absolute;
  right: -280px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-bg-card);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  width: 240px;
  max-height: 80vh;
  overflow-y: auto;
}

.ladder-step {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-xs);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

.ladder-step.current {
  background: linear-gradient(90deg, rgba(0, 245, 212, 0.2) 0%, rgba(123, 97, 255, 0.2) 100%);
  color: var(--color-text-primary);
  font-weight: 700;
  border: 1px solid var(--color-accent-primary);
}

.ladder-step.safe {
  border-left: 3px solid var(--color-accent-gold);
}

.ladder-step.safe .step-prize {
  color: var(--color-accent-gold);
}

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

.step-prize {
  font-weight: 600;
}

/* Question Area */
.question-area {
  background: linear-gradient(135deg, rgba(123, 97, 255, 0.1) 0%, rgba(0, 245, 212, 0.1) 100%);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid rgba(123, 97, 255, 0.2);
}

.question-text {
  font-size: 1.375rem;
  line-height: 1.6;
  font-weight: 500;
}

/* Options */
.options-area {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.option-button {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--color-bg-card);
  border: 2px solid var(--color-bg-elevated);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: 1rem;
  text-align: left;
  transition: all var(--transition-fast);
}

.option-button:hover:not(.disabled) {
  background: var(--color-bg-elevated);
  border-color: var(--color-accent-secondary);
}

.option-button.selected {
  background: linear-gradient(135deg, rgba(123, 97, 255, 0.2) 0%, rgba(0, 245, 212, 0.2) 100%);
  border-color: var(--color-accent-primary);
  box-shadow: 0 0 20px rgba(123, 97, 255, 0.3);
}

.option-button.disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.option-letter {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-accent-secondary);
  min-width: 30px;
}

.option-text {
  flex: 1;
}

/* Submit Area */
.submit-area {
  text-align: center;
}

.trivia-submit {
  padding: var(--spacing-md) var(--spacing-2xl);
  font-size: 1.125rem;
  background: linear-gradient(135deg, var(--color-accent-gold), var(--color-accent-secondary));
}

.trivia-submit:not(:disabled):hover {
  box-shadow: 0 0 30px rgba(255, 215, 0, 0.4);
}

/* Trivia Result */
.trivia-result .correct-answer-display {
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-md);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-sm);
}

.trivia-result .correct-answer-display strong {
  color: var(--color-success);
}

.trivia-result .result-icon {
  font-size: 1.5rem;
}

/* Trivia End Screen */
.trivia-end .result-message h2 {
  font-size: 2rem;
  background: linear-gradient(135deg, var(--color-accent-gold), var(--color-accent-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.prize-scores .score {
  color: var(--color-accent-gold) !important;
}

.prize-scores .score-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
}

/* Word Chain End */
.chain-final {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-sm);
}

.chain-final .chain-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.chain-final .chain-words {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-accent-secondary);
  word-break: break-all;
}

/* ============================================
   Responsive Adjustments for New Modes
   ============================================ */

@media (max-width: 1200px) {
  .prize-ladder {
    display: none;
  }
}

@media (max-width: 768px) {
  .trivia-header {
    flex-direction: column;
  }
  
  .question-info {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
  }
  
  .options-area {
    grid-template-columns: 1fr;
  }
  
  .option-button {
    width: 100%;
  }
  
  .question-text {
    font-size: 1.125rem;
  }
  
  .chain-display {
    padding: var(--spacing-md);
  }
  
  .letter-text {
    font-size: 2.5rem;
  }
  
  .word-text {
    font-size: 1.5rem;
  }
}