:root {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-tertiary: #0f3460;
  --text-primary: #eaeaea;
  --text-secondary: #a0a0a0;
  --accent: #e94560;
  --accent-hover: #ff6b6b;
  --success: #4ade80;
  --warning: #fbbf24;
  --error: #ef4444;
  --border: #2a2a4a;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
}

#app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.header {
  text-align: center;
  margin-bottom: 2rem;
}
.header h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--accent);
}
.header .subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.main-content {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 1.5rem;
}
@media (max-width: 768px) {
  .main-content {
    grid-template-columns: 1fr;
  }
}

.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
}
.card h2 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.counter {
  text-align: center;
}
.counter .value {
  font-size: 4rem;
  font-weight: bold;
  color: var(--accent);
  margin: 1rem 0;
}
.counter .buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

button {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
}
button:hover {
  background-color: var(--accent);
  border-color: var(--accent);
}
button:active {
  transform: scale(0.98);
}
button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
button.primary {
  background-color: var(--accent);
  border-color: var(--accent);
}
button.primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
}

.chat {
  display: flex;
  flex-direction: column;
  height: 400px;
}
.chat .messages {
  flex: 1;
  overflow-y: auto;
  margin-bottom: 1rem;
  padding: 0.5rem;
  background-color: var(--bg-primary);
  border-radius: 0.5rem;
}
.chat .messages::-webkit-scrollbar {
  width: 6px;
}
.chat .messages::-webkit-scrollbar-thumb {
  background-color: var(--border);
  border-radius: 3px;
}
.chat .message {
  margin-bottom: 0.75rem;
}
.chat .message .meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}
.chat .message .meta .author {
  font-weight: 600;
  color: var(--accent);
  font-size: 0.85rem;
}
.chat .message .meta .time {
  color: var(--text-secondary);
  font-size: 0.75rem;
}
.chat .message .content {
  color: var(--text-primary);
  font-size: 0.9rem;
  padding-left: 0;
}
.chat .input-row {
  display: flex;
  gap: 0.5rem;
}
.chat .input-row input {
  flex: 1;
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.75rem;
  color: var(--text-primary);
  font-size: 0.9rem;
}
.chat .input-row input:focus {
  outline: none;
  border-color: var(--accent);
}
.chat .input-row input::placeholder {
  color: var(--text-secondary);
}

.presence h2 {
  margin-bottom: 1rem;
}
.presence .user-list {
  list-style: none;
}
.presence .user-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem;
  border-radius: 0.5rem;
  margin-bottom: 0.25rem;
}
.presence .user-list li:hover {
  background-color: var(--bg-primary);
}
.presence .user-list li .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--success);
}
.presence .user-list li .name {
  color: var(--text-primary);
  font-size: 0.9rem;
}
.presence .user-list li.self {
  background-color: var(--bg-tertiary);
}
.presence .user-list li.self .name {
  font-weight: 600;
}
.presence .empty {
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-align: center;
  padding: 1rem;
}

.room-selector {
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.room-selector label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}
.room-selector input {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.5rem 1rem;
  color: var(--text-primary);
  font-size: 0.9rem;
  width: 150px;
}
.room-selector input:focus {
  outline: none;
  border-color: var(--accent);
}

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.loading .spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
.root-app {
  min-height: 100vh;
}

.mode-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.mode-tabs button {
  background-color: transparent;
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
}
.mode-tabs button.active {
  background-color: var(--accent);
  border-color: var(--accent);
}

.memory-app {
  max-width: 1400px;
  margin: 0 auto;
}
.memory-app .header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}
.memory-app .header h1 {
  margin: 0;
}

.lobby {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 2rem;
}
.lobby h2 {
  text-align: center;
  margin-bottom: 1.5rem;
  color: var(--accent);
}
.lobby h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}
.lobby h3 .player-count {
  color: var(--text-secondary);
  font-weight: normal;
}
.lobby .lobby-players {
  margin-bottom: 2rem;
}
.lobby .lobby-players ul {
  list-style: none;
  background-color: var(--bg-primary);
  border-radius: 0.5rem;
  padding: 0.5rem;
}
.lobby .lobby-players ul li {
  padding: 0.5rem 0.75rem;
  border-radius: 0.25rem;
}
.lobby .lobby-players ul li:hover {
  background-color: var(--bg-tertiary);
}
.lobby .lobby-settings .setting-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}
.lobby .lobby-settings .setting-row label {
  min-width: 80px;
  color: var(--text-secondary);
}
.lobby .lobby-settings .setting-row select {
  flex: 1;
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.5rem;
  color: var(--text-primary);
  font-size: 0.9rem;
}
.lobby .lobby-settings .setting-row select:focus {
  outline: none;
  border-color: var(--accent);
}
.lobby .lobby-settings .start-button {
  width: 100%;
  margin-top: 1.5rem;
  background-color: var(--accent);
  border-color: var(--accent);
  font-size: 1.1rem;
  padding: 1rem;
}
.lobby .lobby-settings .start-button:hover {
  background-color: var(--accent-hover);
}
.lobby .lobby-waiting {
  text-align: center;
  color: var(--text-secondary);
  padding: 2rem;
}
.lobby .lobby-waiting p {
  animation: pulse 2s infinite;
}

.countdown {
  text-align: center;
  padding: 4rem 2rem;
}
.countdown h2 {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}
.countdown .countdown-number {
  font-size: 8rem;
  font-weight: bold;
  color: var(--accent);
  animation: pulse 1s infinite;
}

.game-playing {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 1.5rem;
}
@media (max-width: 900px) {
  .game-playing {
    grid-template-columns: 1fr;
  }
}

.game-main {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
}

.game-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.game-board-container {
  display: flex;
  justify-content: center;
}

.game-board {
  max-width: 800px;
  width: 100%;
}

.player-list {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1rem;
}
.player-list h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}
.player-list ul {
  list-style: none;
}
.player-list ul li {
  padding: 0.5rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}
.player-list ul li.current-turn {
  background-color: var(--bg-tertiary);
  border-left: 3px solid var(--accent);
}
.player-list ul li.spectator {
  opacity: 0.6;
}
.player-list ul li .turn-indicator {
  color: var(--accent);
  font-weight: bold;
}
.player-list ul li .player-name {
  flex: 1;
}
.player-list ul li .score {
  color: var(--text-secondary);
  font-size: 0.85rem;
}
.player-list ul li .spectator-badge {
  font-size: 0.85rem;
}

.game-results {
  max-width: 500px;
  margin: 0 auto;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 2rem;
  text-align: center;
}
.game-results h2 {
  margin-bottom: 1.5rem;
  color: var(--accent);
}
.game-results .winner-announcement {
  margin-bottom: 2rem;
}
.game-results .winner-announcement .winner-text {
  font-size: 1.5rem;
  font-weight: bold;
}
.game-results .winner-announcement .winner-text.you-won {
  color: var(--success);
}
.game-results .rankings {
  margin-bottom: 2rem;
  text-align: left;
}
.game-results .rankings h3 {
  text-align: center;
  margin-bottom: 1rem;
  font-size: 1rem;
}
.game-results .rankings ol {
  list-style: none;
  counter-reset: rank;
  background-color: var(--bg-primary);
  border-radius: 0.5rem;
  padding: 0.5rem;
}
.game-results .rankings ol li {
  padding: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 0.25rem;
}
.game-results .rankings ol li.is-me {
  background-color: var(--bg-tertiary);
  font-weight: bold;
}
.game-results .rankings ol li .medal {
  font-size: 1.2rem;
  min-width: 1.5rem;
}
.game-results .rankings ol li .rank-name {
  flex: 1;
}
.game-results .rankings ol li .rank-score {
  color: var(--text-secondary);
  font-size: 0.85rem;
}
.game-results .rematch-button {
  background-color: var(--accent);
  border-color: var(--accent);
  font-size: 1.1rem;
  padding: 0.75rem 2rem;
}
.game-results .rematch-button:hover {
  background-color: var(--accent-hover);
}