:root{--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-tertiary:#334155;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent-color:#3b82f6;--accent-color-hover:#2563eb;--error-color:#ef4444;--success-color:#10b981;--spacing-xs:.25rem;--spacing-sm:.5rem;--spacing-md:1rem;--spacing-lg:1.5rem;--spacing-xl:2rem;--border-radius-sm:.25rem;--border-radius-md:.5rem;--border-radius-lg:1rem;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--font-family:"Inter", system-ui, Avenir, Helvetica, Arial, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;justify-content:center;align-items:center;min-height:100vh;line-height:1.5;display:flex}#root{flex-direction:column;width:100%;height:100vh;display:flex}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:var(--border-radius-lg)}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:.3s ease-out forwards fadeIn}.message-list-container{padding:var(--spacing-lg);gap:var(--spacing-md);flex-direction:column;flex:1;display:flex;overflow-y:auto}.system-message{background-color:var(--bg-tertiary);color:var(--text-secondary);padding:var(--spacing-xs) var(--spacing-md);border-radius:var(--border-radius-lg);margin:var(--spacing-sm) 0;align-self:center;font-size:.85rem}.message-wrapper{align-items:flex-end;gap:var(--spacing-sm);max-width:80%;display:flex}.own-message{flex-direction:row-reverse;align-self:flex-end}.other-message{align-self:flex-start}.avatar{background:linear-gradient(135deg, var(--accent-color), #8b5cf6);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:.75rem;font-weight:700;display:flex}.message-bubble{background-color:var(--bg-secondary);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--border-radius-md);box-shadow:var(--shadow-sm);flex-direction:column;display:flex;position:relative}.own-message .message-bubble{background-color:var(--accent-color);color:#fff;border-bottom-right-radius:0}.other-message .message-bubble{border-bottom-left-radius:0}.message-content{font-size:.95rem;line-height:1.4}.message-time{opacity:.7;align-self:flex-end;margin-top:4px;font-size:.7rem}.message-input-container{padding:var(--spacing-md) var(--spacing-lg);background-color:var(--bg-primary);border-top:1px solid var(--bg-tertiary);gap:var(--spacing-sm);align-items:center;display:flex}.message-input{background-color:var(--bg-secondary);border:1px solid var(--bg-tertiary);color:var(--text-primary);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--border-radius-lg);outline:none;flex:1;font-size:1rem;transition:border-color .2s,box-shadow .2s}.message-input:focus{border-color:var(--accent-color);box-shadow:0 0 0 2px #3b82f633}.message-input:disabled{opacity:.5;cursor:not-allowed}.send-button{background-color:var(--accent-color);color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;transition:background-color .2s,transform .1s;display:flex}.send-button:hover:not(:disabled){background-color:var(--accent-color-hover)}.send-button:active:not(:disabled){transform:scale(.95)}.send-button:disabled{background-color:var(--bg-tertiary);color:var(--text-secondary);cursor:not-allowed}.chat-room{background-color:var(--bg-primary);border-left:1px solid var(--bg-tertiary);border-right:1px solid var(--bg-tertiary);width:100%;max-width:900px;height:100vh;box-shadow:var(--shadow-glow);flex-direction:column;margin:0 auto;display:flex}.chat-header{padding:var(--spacing-md) var(--spacing-lg);background-color:var(--bg-secondary);border-bottom:1px solid var(--bg-tertiary);gap:var(--spacing-sm);z-index:10;flex-direction:column;display:flex}.header-info{justify-content:space-between;align-items:center;display:flex}.header-actions{align-items:center;gap:var(--spacing-md);display:flex}.leave-button{color:var(--text-secondary);border:1px solid var(--bg-tertiary);border-radius:var(--border-radius-md);cursor:pointer;background-color:#0000;padding:4px 12px;font-size:.85rem;transition:all .2s}.leave-button:hover{background-color:var(--bg-tertiary);color:var(--error-color);border-color:var(--error-color)}.header-info h2{color:var(--text-primary);font-size:1.25rem;font-weight:600}.status-badge{border-radius:var(--border-radius-lg);padding:4px 8px;font-size:.75rem;font-weight:500}.status-badge.connected{color:var(--success-color);background-color:#10b98133}.status-badge.disconnected{color:var(--error-color);background-color:#ef444433}.error-banner{color:var(--error-color);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius-sm);text-align:center;background-color:#ef44441a;font-size:.85rem}.room-selector-container{background-color:var(--bg-primary);width:100%;height:100vh;padding:var(--spacing-md);justify-content:center;align-items:center;display:flex}.room-selector-card{background-color:var(--bg-secondary);border:1px solid var(--bg-tertiary);padding:var(--spacing-xl);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-md);text-align:center;align-items:center;gap:var(--spacing-lg);flex-direction:column;width:100%;max-width:400px;display:flex}.brand-logo{width:80px;height:80px;box-shadow:var(--shadow-glow);background:linear-gradient(135deg,#3b82f633,#8b5cf633);border-radius:50%;justify-content:center;align-items:center;display:flex}.room-title{color:var(--text-primary);margin:0;font-size:1.5rem;font-weight:700}.room-subtitle{color:var(--text-secondary);margin:0;font-size:.9rem;line-height:1.4}.room-input-group{gap:var(--spacing-md);flex-direction:column;width:100%;display:flex}.room-input{background-color:var(--bg-primary);border:1px solid var(--bg-tertiary);width:100%;color:var(--text-primary);padding:var(--spacing-md);border-radius:var(--border-radius-md);text-align:center;outline:none;font-size:1rem;transition:all .2s}.room-input:focus{border-color:var(--accent-color);box-shadow:0 0 0 2px #3b82f633}.room-join-button{background-color:var(--accent-color);color:#fff;width:100%;padding:var(--spacing-md);border-radius:var(--border-radius-md);cursor:pointer;border:none;font-size:1rem;font-weight:600;transition:background-color .2s,transform .1s}.room-join-button:hover:not(:disabled){background-color:var(--accent-color-hover)}.room-join-button:active:not(:disabled){transform:scale(.98)}.room-join-button:disabled{background-color:var(--bg-tertiary);color:var(--text-secondary);cursor:not-allowed;opacity:.7}