:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color:#ffffffde;background-color:#1e1e1e;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-text-size-adjust:100%}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}#root{width:100%;height:100vh}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}.auth-card{background:#fff;border-radius:12px;box-shadow:0 20px 40px #0000001a;padding:40px;width:100%;max-width:400px;animation:slideUp .6s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.auth-card 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(max-width: 768px){.room-list{padding:1rem}.room-list-header{flex-direction:column;align-items:stretch;gap:1rem}.room-list-header h2{font-size:1.5rem}.rooms-container{grid-template-columns:1fr;gap:1rem}.room-card{padding:1rem}.room-meta{gap:.5rem}.room-meta span{font-size:.75rem;padding:.2rem .6rem}}.code-editor-container{height:100%;display:flex;flex-direction:column;background-color:#1e1e1e}.editor-header{background-color:#2d2d30;padding:12px 16px;border-bottom:1px solid #3e3e42;display:flex;justify-content:space-between;align-items:center}.editor-header h3{margin:0;color:#fff;font-size:14px}.editor-actions{display:flex;gap:8px}.language-select{background-color:#1e1e1e;color:#d4d4d4;border:1px solid #3e3e42;border-radius:4px;padding:6px 8px;font-size:12px}.content-row{display:flex;flex:1;min-height:0}.editor-wrapper{flex:1 1 auto;overflow:hidden}.terminal-panel{background-color:#111315;border-top:1px solid 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12px;border-radius:6px;font-size:12px;cursor:pointer}.chat-send:hover{background-color:#36393e}.App{height:100%;display:flex;flex-direction:column}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:400px;gap:1rem}.loading-spinner{width:40px;height:40px;border:4px solid #e2e8f0;border-top:4px solid #667eea;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:400px;gap:1rem;text-align:center;padding:2rem}.error-container h3{color:#e53e3e;margin:0;font-size:1.5rem}.error-container p{color:#718096;margin:0;max-width:400px}.back-button{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:8px;cursor:pointer;font-weight:600;transition:all .2s ease}.back-button:hover{transform:translateY(-2px);box-shadow:0 8px 20px #667eea4d}.error-message{background:#fed7d7;color:#c53030;padding:1rem;border-radius:8px;margin:1rem 0;border-left:4px solid #e53e3e;display:flex;align-items:center;justify-content:space-between;gap:1rem}.retry-button{background:#e53e3e;color:#fff;border:none;padding:.5rem 1rem;border-radius:4px;cursor:pointer;font-size:.9rem;transition:background .2s ease}.retry-button:hover{background:#c53030}.auth-page{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2)}.editor-actions-bottom{position:fixed;bottom:20px;left:20px;z-index:1000}.leave-room-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;padding:.75rem 1.5rem;cursor:pointer;font-size:14px;font-weight:600;transition:all .2s ease;box-shadow:0 4px 12px #667eea4d}.leave-room-btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px #667eea66}