:root{--primary: #2563eb;--primary-hover: #1d4ed8;--bg-main: #f8fafc;--bg-card: #ffffff;--bg-input: #ffffff;--bg-secondary: #f8f9fa;--bg-chat-outbound: #2563eb;--bg-chat-inbound: #f1f3f5;--text-main: #0f172a;--text-muted: #64748b;--text-chat-outbound: #ffffff;--text-chat-inbound: #000000;--border: #e2e8f0;--sidebar-bg: #1e293b;--sidebar-text: #cbd5e1;--sidebar-hover: #334155}[data-theme=dark]{--primary: #3b82f6;--primary-hover: #60a5fa;--bg-main: #0f172a;--bg-card: #1e293b;--bg-input: #334155;--bg-secondary: #1e293b;--bg-chat-outbound: #3b82f6;--bg-chat-inbound: #334155;--text-main: #f1f5f9;--text-muted: #94a3b8;--text-chat-outbound: #ffffff;--text-chat-inbound: #f1f5f9;--border: #334155;--sidebar-bg: #020617;--sidebar-text: #94a3b8;--sidebar-hover: #1e293b}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-main);color:var(--text-main);transition:background-color .3s,color .3s}*{box-sizing:border-box}input,select,textarea{background-color:var(--bg-input);color:var(--text-main);border:1px solid var(--border);transition:all .2s}input::placeholder{color:var(--text-muted)}a{color:var(--primary);text-decoration:none}button{cursor:pointer;transition:all .2s}