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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: #fafafa;
  min-height: 100vh;
  padding: 20px;
}

.main-container {
  max-width: 1400px;
  margin: 0 auto;
}

.header {
  text-align: center;
  color: #1a1a1a;
  margin-bottom: 40px;
  position: relative;
}

.back-link-container {
  position: absolute;
  left: 0;
  top: 10px;
}

.back-link {
  color: #0066ff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  opacity: 0.9;
  transition: opacity 0.2s;
}

.back-link:hover {
  opacity: 1;
  text-decoration: underline;
}

.header-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.025em;
}

.header-subtitle {
  font-size: 16px;
  color: #6b7280;
}

.demo-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.demo-left,
.demo-right {
  background: #ffffff;
  border-radius: 12px;
  border: none;
  padding: 24px;
  box-shadow: none;
}

.game-container h3,
.event-log-container h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #1a1a1a;
}

.game-status {
  text-align: center;
  font-size: 16px;
  font-weight: 600;
  color: #0066ff;
  margin-bottom: 16px;
  padding: 10px;
  background: #f9fafb;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
}

.board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  max-width: 400px;
  margin: 0 auto 20px;
  position: relative;
}

.cell {
  aspect-ratio: 1;
  background: #f9fafb;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.cell:hover {
  background: #ffffff;
  border-color: #0066ff;
  transform: scale(1.02);
}

.cell.x {
  color: #0066ff;
}

.cell.o {
  color: #dc2626;
}

.cell.winner {
  background: #eff6ff;
  border-color: #0066ff;
  animation: pulse 0.5s ease-in-out;
}

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

.game-over-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 2px solid #0066ff;
  z-index: 10;
  animation: fadeIn 0.3s ease-out;
}

.game-over-overlay.hidden {
  display: none;
}

.game-over-content {
  text-align: center;
  color: #1a1a1a;
  animation: slideDown 0.4s ease-out;
}

.game-over-emoji {
  font-size: 80px;
  margin-bottom: 16px;
  animation: bounceIn 0.6s ease-out;
}

.game-over-message {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 24px;
  text-shadow: none;
  color: #1a1a1a;
}

.play-again-button {
  padding: 12px 28px;
  background: #0066ff;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: none;
}

.play-again-button:hover {
  transform: translateY(-1px);
  box-shadow: none;
  background: #0052cc;
}

.play-again-button:active {
  transform: translateY(0);
}

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

@keyframes slideDown {
  from {
    transform: translateY(-50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes bounceIn {
  0% {
    transform: scale(0);
  }
  50% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
  }
}

.game-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  max-width: 400px;
  margin: 0 auto;
}

.reset-button {
  flex: 1;
  padding: 12px 24px;
  background: #0066ff;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: none;
}

.difficulty-selector {
  display: flex;
  align-items: center;
  gap: 8px;
}

.difficulty-selector label {
  font-size: 14px;
  font-weight: 500;
  color: #374151;
}

.difficulty-selector select {
  padding: 10px 12px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 14px;
  background: white;
  cursor: pointer;
  transition: border-color 0.2s;
}

.difficulty-selector select:hover {
  border-color: #0066ff;
}

.difficulty-selector select:focus {
  outline: none;
  border-color: #0066ff;
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.reset-button:hover {
  transform: translateY(-1px);
  box-shadow: none;
  background: #0052cc;
}

.reset-button:active {
  transform: translateY(0);
}

.game-hint {
  margin-top: 16px;
  padding: 16px;
  background: #f9fafb;
  border-left: 4px solid #0066ff;
  border-radius: 8px;
  color: #4b5563;
  font-size: 13px;
  line-height: 1.6;
}

.event-log-container {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.event-log-hint {
  font-size: 13px;
  color: #6b7280;
  margin-bottom: 12px;
}

.event-log {
  flex: 1;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 16px;
  overflow-y: auto;
  max-height: 450px;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 12px;
  color: #374151;
}

.event-log:empty::before {
  content: 'No events yet. Start playing to see the action!';
  color: #9ca3af;
  font-style: italic;
}

.log-entry {
  padding: 8px;
  margin-bottom: 8px;
  border-radius: 4px;
  line-height: 1.4;
}

.log-time {
  font-weight: 600;
  margin-right: 8px;
  color: #6b7280;
}

.log-info {
  background: transparent;
  color: #1a1a1a;
}

.log-move {
  background: transparent;
  color: #1a1a1a;
}

.log-ai-move {
  background: transparent;
  color: #1a1a1a;
}

.log-game-over {
  background: transparent;
  color: #1a1a1a;
  font-weight: bold;
}

.log-reset {
  background: transparent;
  color: #1a1a1a;
}

.log-error {
  background: transparent;
  color: #1a1a1a;
}

.log-tool-call {
  background: transparent;
  color: #1a1a1a;
}

.footer {
  text-align: center;
  color: #9ca3af;
  font-size: 13px;
  padding: 16px;
}

@media (max-width: 1024px) {
  .demo-content {
    grid-template-columns: 1fr;
  }

  .header-title {
    font-size: 32px;
  }

  .board {
    max-width: 300px;
  }

  .cell {
    font-size: 36px;
  }
}

@media (max-width: 767px) {
  .header {
    padding-top: 0;
  }

  .back-link-container {
    position: static;
    text-align: left;
    margin-bottom: 16px;
  }

  .header-title {
    font-size: 24px;
  }

  .header-subtitle {
    font-size: 14px;
  }
}

/* ============================================
   CHAT WRAPPER STYLES
   ============================================ */

/* Floating Chat Button */
.ozwell-chat-button {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #0066ff;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 102, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  transition: transform 0.2s, box-shadow 0.2s;
  z-index: 9998;
}

.ozwell-chat-button:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(0, 102, 255, 0.4);
}

.ozwell-chat-button:active {
  transform: scale(0.95);
}

.ozwell-chat-button.hidden {
  display: none;
}

/* Chat Window Wrapper */
.ozwell-chat-wrapper {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 380px;
  height: 520px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  z-index: 9999;
  transition: opacity 0.3s, transform 0.3s;
  overflow: hidden;
}

.ozwell-chat-wrapper.hidden {
  opacity: 0;
  transform: scale(0.9) translateY(20px);
  pointer-events: none;
}

.ozwell-chat-wrapper.visible {
  opacity: 1;
  transform: scale(1) translateY(0);
}

/* Chat Header */
.ozwell-chat-header {
  background: #0066ff;
  color: white;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: move;
  user-select: none;
  flex-shrink: 0;
}

.ozwell-chat-title {
  font-size: 16px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.ozwell-chat-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ozwell-chat-control-btn {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: background 0.2s;
}

.ozwell-chat-control-btn:hover {
  background: rgba(255, 255, 255, 0.3);
}

.ozwell-chat-control-btn:active {
  background: rgba(255, 255, 255, 0.4);
}

/* Chat Content Area */
.ozwell-chat-content {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.ozwell-chat-content iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

/* Minimized State */
.ozwell-chat-wrapper.minimized {
  height: 52px;
  width: 200px;
}

.ozwell-chat-wrapper.minimized .ozwell-chat-content {
  display: none;
}

.ozwell-chat-wrapper.minimized .ozwell-chat-header {
  cursor: pointer;
}

/* Dragging State */
.ozwell-chat-wrapper.dragging {
  cursor: move;
  user-select: none;
}