:root{--primary-color: #1a1a2e;--secondary-color: #16213e;--accent-color: #0f3460;--highlight-color: #00b4d8;--text-color: #e6e6e6;--text-secondary: #b8b8b8;--success-color: #4caf50;--warning-color: #ff9800;--error-color: #f44336;--chess-dark: #4a6b8a;--chess-light: #b5c7d3}*{margin:0;padding:0;box-sizing:border-box}body{background-color:var(--primary-color);color:var(--text-color);font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6}.app-container{display:flex;flex-direction:column;min-height:100vh}.toolbar{display:flex;justify-content:space-between;align-items:center;padding:.8rem 2rem;background-color:var(--secondary-color);box-shadow:0 2px 10px #0000004d}.toolbar-left,.toolbar-right{display:flex;align-items:center}.app-title{font-size:1.5rem;font-weight:600;color:var(--highlight-color);text-shadow:0 0 5px rgba(0,180,216,.3)}.toolbar-button{background-color:var(--accent-color);color:var(--text-color);border:none;border-radius:4px;padding:.5rem 1rem;margin-left:.8rem;cursor:pointer;display:flex;align-items:center;transition:all .2s ease;font-size:.9rem}.toolbar-button:hover{background-color:var(--highlight-color);color:var(--primary-color);transform:translateY(-1px)}.toolbar-button.active{background-color:var(--error-color)}.toolbar-button i{margin-right:.5rem;font-size:1rem}.main-content{display:flex;flex:1;padding:2rem;max-width:1400px;width:100%;margin:0 auto}.chessboard-container{flex:1;display:flex;justify-content:center;align-items:center;min-width:600px}.commentary-container{flex:1;max-width:500px;background-color:var(--secondary-color);border-radius:8px;padding:1.5rem;box-shadow:0 4px 6px #0000001a;display:flex;flex-direction:column;height:70vh;max-height:700px;min-height:800px}.commentary-header{display:flex;align-items:center;margin-bottom:1.5rem;border-bottom:1px solid var(--accent-color);padding-bottom:1rem}.commentary-avatar{margin-right:1rem}.avatar-circle{width:50px;height:50px;border-radius:50%;background-color:var(--highlight-color);display:flex;justify-content:center;align-items:center;color:var(--primary-color);font-weight:700;font-size:1.2rem}.commentary-title h3{font-size:1.2rem;color:var(--highlight-color)}.commentary-content{flex:1;overflow-y:auto;padding:.5rem;scrollbar-width:thin;scrollbar-color:var(--highlight-color) var(--accent-color)}.commentary-content::-webkit-scrollbar{width:8px}.commentary-content::-webkit-scrollbar-track{background:var(--accent-color);border-radius:4px}.commentary-content::-webkit-scrollbar-thumb{background-color:var(--highlight-color);border-radius:4px}.typing-text{font-size:1.1rem;line-height:1.6;color:var(--text-color);white-space:pre-wrap;border-left:3px solid var(--highlight-color);padding-left:1rem}.placeholder-text{color:var(--text-secondary);font-style:italic;text-align:center;margin-top:2rem}.status-bar{padding:.8rem 2rem;background-color:var(--secondary-color);display:flex;justify-content:space-between;font-size:.9rem;color:var(--text-secondary)}.fen-display code{color:var(--highlight-color);font-family:Courier New,monospace;word-break:break-all}.evaluation strong{color:var(--text-color)}.speaking-indicator{display:flex;align-items:center;font-size:.8rem;color:var(--highlight-color);margin-top:.3rem}.pulse-dot{width:8px;height:8px;border-radius:50%;background-color:var(--highlight-color);margin-right:.5rem;animation:pulse 1.5s infinite}@keyframes pulse{0%{transform:scale(.95);box-shadow:0 0 #00b4d8b3}70%{transform:scale(1);box-shadow:0 0 0 10px #00b4d800}to{transform:scale(.95);box-shadow:0 0 #00b4d800}}.icon-ai:before{content:"🤖"}.icon-volume-on:before{content:"🔊"}.icon-volume-off:before{content:"🔇"}.icon-reset:before{content:"🔄"}@media (max-width: 1024px){.main-content{flex-direction:column;padding:1rem}.chessboard-container{margin-bottom:1.5rem}.commentary-container{max-width:100%}}@media (max-width: 768px){.toolbar{flex-direction:column;padding:1rem}.toolbar-right{margin-top:1rem}.toolbar-button{margin:.3rem}.status-bar{flex-direction:column;gap:.5rem}}