:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body.dark-theme{--bg-color: #202124;--text-color: #e5e5ea;--chat-container-bg: #202124;--message-bot-bg: #3a3a3c;--input-bg: #3a3a3c;--input-border: #555;--sidebar-bg: #202123;--sidebar-border: #3a3a3c;--hover-bg: #3a3a3c;--secondary-text-color: #999;--input-text-color: #e5e5ea;--user-message-text: #ffffff}body.light-theme{--bg-color: #f0f2f5;--text-color: #1c1c1e;--chat-container-bg: #ffffff;--message-bot-bg: #e9e9eb;--input-bg: #f0f2f5;--input-border: #ccc;--sidebar-bg: #f0f2f5;--sidebar-border: #ddd;--hover-bg: #e9e9eb;--secondary-text-color: #65676b;--input-text-color: #1c1c1e;--user-message-text: #1c1c1e}body{margin:0;display:flex;justify-content:center;align-items:center;height:100vh;background-color:var(--bg-color);color:var(--text-color)}.sidebar{width:260px;height:100vh;background-color:var(--sidebar-bg);display:flex;flex-direction:column;padding:10px;box-sizing:border-box;border-right:1px solid var(--sidebar-border);transition:transform .3s ease;flex-shrink:0;position:fixed;left:0;top:0;z-index:1000}.sidebar-menu-button{background:none;border:none;color:var(--text-color);cursor:pointer;padding:0;display:flex}.sidebar-top-header{display:flex;align-items:center;gap:10px;padding:15px 10px;color:var(--text-color)}.sidebar-top-header h2{font-size:1.2rem;font-weight:500;margin:0;background:linear-gradient(to right,#4e8cff,#8a5cff);-webkit-background-clip:text;background-clip:text;color:transparent;transition:filter .3s ease}.sidebar-top-header h2:hover{filter:brightness(1.2)}.sidebar-header{display:flex;align-items:center;gap:10px;padding:10px 0}.new-chat-button{flex-grow:1;padding:10px;background-color:transparent;border:1px solid var(--input-border);color:var(--text-color);border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px}.new-chat-tab-button{padding:8px;background-color:transparent;border:1px solid var(--input-border);color:var(--text-color);border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center}.new-chat-tab-button:hover{background-color:var(--hover-bg)}.clear-all-button{padding:8px;background-color:transparent;border:1px solid var(--input-border);color:var(--secondary-text-color);border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color .2s,color .2s}.clear-all-button:hover{background-color:#8c1c1c;border-color:#8c1c1c;color:#fff}.clear-all-button:hover svg{animation:shake .5s}.chat-history-list{list-style:none;padding:0;margin:20px 0;color:var(--text-color)}.chat-history-list li{display:flex;justify-content:space-between;align-items:center;padding:10px;border-radius:6px;cursor:pointer}.chat-history-list li:hover{background-color:var(--hover-bg)}.chat-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex-grow:1}.delete-chat-button{background:none;border:none;color:var(--secondary-text-color);cursor:pointer;display:none;padding:2px;margin-left:8px}.chat-history-list li:hover .delete-chat-button{display:block}.delete-chat-button:hover{color:var(--text-color)}.sidebar.collapsed{transform:translate(-100%)}@media(max-width:768px){.sidebar{transform:translate(-100%)}}.loading-container{display:flex;justify-content:center;align-items:center;padding:40px 0}.pulsing-dot{width:12px;height:12px;background-color:var(--secondary-text-color);border-radius:50%;animation:pulse 1.5s infinite ease-in-out}@keyframes pulse{0%,to{transform:scale(.8);opacity:.7}50%{transform:scale(1.2);opacity:1}}@keyframes shimmer{to{left:100%}}.sidebar-footer{margin-top:auto;padding:10px 0;position:relative}.settings-button{background:none;border:none;color:var(--text-color);cursor:pointer;display:flex;align-items:center;gap:8px;padding:10px;width:100%;border-radius:6px}.settings-button:hover{background-color:var(--hover-bg)}.settings-menu{position:absolute;bottom:100%;left:0;width:100%;background-color:var(--hover-bg);border-radius:8px;box-shadow:0 4px 12px #0003;padding:8px;margin-bottom:8px;z-index:1100}.settings-item{padding:10px;border-radius:6px;color:var(--text-color);cursor:pointer;position:relative;display:flex;align-items:center;gap:8px;width:100%;background:none;text-decoration:none}.settings-item:hover{background-color:var(--input-border)}.theme-submenu{position:absolute;left:100%;top:0;background-color:var(--hover-bg);border-radius:8px;box-shadow:0 4px 12px #0003;padding:8px;margin-left:8px;width:120px}.theme-submenu button{background:none;border:none;color:var(--text-color);padding:10px;width:100%;text-align:left;border-radius:6px;cursor:pointer}.theme-submenu button:hover{background-color:var(--input-border)}@keyframes pop-in{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.menu-toggle-open{background:none;border:none;color:var(--text-color);cursor:pointer;z-index:1001;opacity:0;transform:translate(-20px);transition:opacity .3s ease,transform .3s ease;pointer-events:none}.app-layout.sidebar-collapsed .menu-toggle-open{opacity:1;transform:translate(0);pointer-events:auto}.settings-toggle-open{position:absolute;bottom:15px;left:15px;background:none;border:none;color:var(--text-color);cursor:pointer;z-index:1001;opacity:0;transform:translate(-20px);transition:opacity .3s ease,transform .3s ease;pointer-events:none}.app-layout.sidebar-collapsed .settings-toggle-open{opacity:1;transform:translate(0);pointer-events:auto}.clear-all-toggle-open{position:absolute;top:55px;left:15px;background:none;border:none;color:var(--secondary-text-color);cursor:pointer;z-index:1001;opacity:0;transform:translate(-20px);transition:opacity .3s ease,transform .3s ease,color .2s;pointer-events:none}.clear-all-toggle-open:hover{color:#e57373}.clear-all-toggle-open:hover svg{animation:shake .5s;animation-iteration-count:infinite}.app-layout.sidebar-collapsed .clear-all-toggle-open{opacity:1;transform:translate(0);pointer-events:auto}.app-layout{display:flex;height:100vh;width:100vw;overflow:hidden;position:relative}.main-content{flex-grow:1;margin-left:260px;transition:margin-left .3s ease;position:relative;display:flex;flex-direction:column}.app-layout.sidebar-collapsed .main-content{margin-left:0}.main-header{position:absolute;top:15px;left:15px;z-index:1001;display:flex;align-items:center;gap:10px}.magic-wand-button{position:fixed;top:15px;right:15px;background:none;border:none;color:var(--secondary-text-color);cursor:pointer;border-radius:50%;padding:5px;animation:glow 2.5s infinite ease-in-out}.magic-wand-emoji{font-size:1.5rem}.magic-wand-button:hover{color:var(--text-color)}.main-header-title{color:var(--text-color);font-family:Roboto,system-ui,sans-serif;font-size:1.2rem;font-weight:500;margin:0}.chat-container{flex-grow:1;background-color:var(--chat-container-bg);display:flex;flex-direction:column;overflow:hidden}.chat-container.initial-layout{justify-content:center;transition:justify-content .5s ease}.chat-container.initial-layout .chat-window{flex-grow:0;overflow:visible}.chat-window{flex-grow:1;padding:60px 20px 10px;overflow-y:auto;display:flex;flex-direction:column;gap:12px;max-width:900px;width:100%;margin:0 auto}.welcome-screen{flex-grow:1;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:20px}.welcome-title{font-size:2.5rem;font-weight:600;margin:0;font-family:Roboto,system-ui,sans-serif}.welcome-subtitle{font-size:1.1rem;color:var(--secondary-text-color);font-style:italic}.animated-subtitle{display:inline-block;opacity:0;animation:fadeInUp .8s .3s ease-out forwards}.welcome-title{animation:pop-in .5s ease-out}.bot-avatar{width:32px;height:32px;border-radius:50%;background-color:var(--hover-bg);display:flex;align-items:center;justify-content:center;font-size:1.2rem;animation:glow-avatar 4s infinite ease-in-out}.message-wrapper{display:flex;align-items:flex-start;gap:8px}chat-window::-webkit-scrollbar{width:0}.chat-window::-webkit-scrollbar-track{background:var(--chat-container-bg)}.chat-window::-webkit-scrollbar-thumb{background-color:var(--input-border);border-radius:3px}.chat-window{scrollbar-width:none}.message{max-width:75%;line-height:1.4;word-wrap:break-word;display:flex;flex-direction:column}.message-text{margin-bottom:5px}.message-timestamp{font-size:.75rem;color:var(--text-color);opacity:.7;align-self:flex-end}.message-wrapper.user{justify-content:flex-end;margin-right:24px}.message-wrapper.bot{justify-content:flex-start}.message.user,.message.user .message-timestamp{color:var(--user-message-text)}.message.bot{color:var(--text-color);font-family:Roboto,system-ui,sans-serif}.action-button{background:none;border:none;color:var(--secondary-text-color);cursor:pointer;padding:4px;display:none;opacity:0;transition:opacity .2s ease}.message-wrapper:hover .action-button{display:block;opacity:1}.action-button:hover{color:var(--text-color)}.message-actions{display:flex;flex-direction:row-reverse}.message-wrapper.editing{flex-direction:column;align-items:flex-end;width:100%}.edit-textarea{width:75%;background-color:#333;color:var(--text-color);border:none;border-radius:24px;padding:15px;font-size:1rem;line-height:1.4;font-family:inherit;resize:none;margin-bottom:8px}.edit-textarea:focus{outline:none}.edit-footer{display:flex;justify-content:space-between;align-items:center;padding:0 5px}.char-counter{font-size:.8rem;color:var(--secondary-text-color)}.char-counter.error{color:#e57373;font-weight:500}.edit-controls{display:flex;gap:8px;justify-content:flex-end}.edit-controls button{padding:6px 14px;border-radius:8px;cursor:pointer;border:none;font-weight:500}.edit-controls button:last-child{background-color:#000;color:#fff}.edit-controls button:first-child{background-color:#fff;color:#000}.edit-controls button:disabled{cursor:not-allowed;opacity:.7}.button-spinner{border:2px solid var(--input-border);border-left-color:var(--text-color);border-radius:50%;width:14px;height:14px;animation:spin 1s linear infinite}body.light-theme .button-spinner{border-left-color:#1c1c1e}.chat-input-footer{bottom:0;padding:15px 20px;box-sizing:border-box;background-color:var(--bg-color)}.file-preview{max-width:900px;margin:0 auto 10px;background-color:var(--input-bg);padding:5px 5px 5px 12px;border-radius:16px;display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:.9rem;animation:pop-in .2s ease-out}.file-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.remove-file-button{background-color:var(--hover-bg);color:var(--secondary-text-color)}.chat-input{display:flex;align-items:flex-end;max-width:900px;margin:0 auto;background-color:var(--input-bg);border-radius:24px;padding:5px;animation:glow-bar 7s infinite ease-in-out}.example-prompts{display:grid;grid-template-columns:repeat(2,auto);gap:10px;justify-content:center;max-width:900px;margin:20px auto 0;width:100%;animation:fadeInUp .5s .5s ease-out forwards;opacity:0}.prompt-button{background-color:var(--input-bg);color:var(--text-color);border:none;border-radius:16px;padding:8px 15px;cursor:pointer;transition:background-color .2s;display:flex;justify-content:center;align-items:center;font-family:Roboto,system-ui,sans-serif;font-size:.9rem}.prompt-text{margin-right:8px}.prompt-icon{margin-left:10px;opacity:.7;transition:transform .2s ease-in-out,opacity .2s ease-in-out}.prompt-button:hover .prompt-icon{transform:scale(1.1);opacity:1}.prompt-button:hover{background-color:var(--hover-bg)}.chat-input textarea{flex-grow:1;background-color:transparent;color:var(--input-text-color);border:none;padding:10px 18px;font-size:1rem;resize:none;max-height:100px;overflow-y:auto;line-height:1.4;font-family:inherit}.chat-input textarea:focus{outline:none;border-color:#0a84ff}.icon-button{background-color:transparent;border:none;padding:8px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color .2s;flex-shrink:0}.icon-button:hover{background-color:var(--hover-bg)}.attachment-button{color:var(--secondary-text-color)}.send-button{color:#0a84ff}.send-button:disabled{color:var(--input-border);cursor:not-allowed;background-color:transparent}.typing-indicator{display:flex;padding:15px;gap:5px}.typing-indicator span{height:8px;width:8px;background-color:var(--secondary-text-color);border-radius:50%;animation:bounce 1.3s infinite}.typing-indicator span:nth-of-type(2){animation-delay:.2s}.typing-indicator span:nth-of-type(3){animation-delay:.4s}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes shake{0%{transform:rotate(0)}10%{transform:rotate(-10deg)}20%{transform:rotate(10deg)}30%{transform:rotate(-10deg)}40%{transform:rotate(0)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes glow{0%,to{box-shadow:0 0 8px 3px #4e8cff33}50%{box-shadow:0 0 18px 6px #4e8cff66}}@keyframes glow-avatar{0%,to{box-shadow:0 0 8px 2px #4e8cff26}50%{box-shadow:0 0 16px 4px #4e8cff4d}}@keyframes glow-bar{0%,to{box-shadow:0 0 8px 2px #ffffff1a}50%{box-shadow:0 0 16px 4px #ffffff40}}@media(max-width:768px){.app-layout:not(.sidebar-collapsed) .sidebar{transform:translate(0)}.sidebar-backdrop{display:none}.main-content{padding-top:60px;box-sizing:border-box}.chat-window{padding:15px 10px 10px}.chat-input{padding:5px}.chat-input-footer{padding:10px}.file-preview{margin:0 auto 8px}.example-prompts{grid-template-columns:1fr;padding:0 10px}.settings-toggle-open{display:none}.message{max-width:85%}}.app-footer{position:fixed;bottom:0;left:0;width:100%;text-align:center;padding:15px 0;font-family:Roboto,system-ui,sans-serif;font-size:.75rem;color:var(--secondary-text-color);pointer-events:none}