*{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:#212121;--bg-secondary:#2f2f2f;--bg-tertiary:#424242;--bg-user:#303030;--text-primary:#ececec;--text-secondary:#b4b4b4;--text-muted:#8e8e8e;--border-color:#3e3e3e;--accent:#10a37f;--accent-hover:#1a7f64;--scrollbar-track:transparent;--scrollbar-thumb:#4a4a4a}html,body,#root{width:100%;height:100%;overflow:hidden}body{background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--scrollbar-track)}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#5a5a5a}.app{width:100vw;height:100vh;display:flex;overflow:hidden}.sidebar{border-right:1px solid 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span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typingBounce{0%,60%,to{opacity:.4;transform:translateY(0)}30%{opacity:1;transform:translateY(-6px)}}.input-area{background:var(--bg-primary);flex-shrink:0;padding:0 24px 20px}.input-container{max-width:768px;margin:0 auto;position:relative}.input-wrapper{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:16px;align-items:flex-end;padding:8px;transition:border-color .2s;display:flex}.input-wrapper:focus-within{border-color:#555}.input-wrapper textarea{color:var(--text-primary);resize:none;background:0 0;border:none;outline:none;flex:1;min-height:24px;max-height:200px;padding:6px 12px;font-family:inherit;font-size:15px;line-height:1.5}.input-wrapper textarea::placeholder{color:var(--text-muted)}.btn-send{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;transition:all .2s;display:flex}.btn-send:hover:not(:disabled){background:var(--accent-hover)}.btn-send:disabled{background:var(--bg-tertiary);color:var(--text-muted);cursor:default}.btn-send svg{width:18px;height:18px}.input-footer{text-align:center;color:var(--text-muted);padding-top:8px;font-size:12px}@media (width<=768px){.sidebar{display:none}.suggestions{grid-template-columns:1fr}.messages-container{padding:12px 16px}.input-area{padding:0 12px 12px}}