:root{--bg-color: #0f172a;--bg-secondary: #1e293b;--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-color: #3b82f6;--accent-hover: #1d4ed8;--message-user-bg: #3b82f6;--message-ai-bg: #1e293b;--border-color: #334155;--sidebar-bg: #1e293b;--input-bg: rgba(255, 255, 255, .05);--glass-bg: rgba(30, 41, 59, .7);--glass-border: rgba(255, 255, 255, .1);--shadow-color: rgba(0, 0, 0, .3)}.light-theme{--bg-color: #f8fafc;--bg-secondary: #ffffff;--text-primary: #0f172a;--text-secondary: #64748b;--accent-color: #2563eb;--accent-hover: #1d4ed8;--message-user-bg: #2563eb;--message-ai-bg: #f1f5f9;--border-color: #e2e8f0;--sidebar-bg: #f1f5f9;--input-bg: #ffffff;--glass-bg: rgba(255, 255, 255, .8);--glass-border: rgba(0, 0, 0, .05);--shadow-color: rgba(0, 0, 0, .05)}body{margin:0;font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg-color);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{height:100vh;display:flex;flex-direction:column}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.glass-panel{background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.fade-in{animation:fadeIn .3s ease-in-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}