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h4{font-size:1rem;font-weight:600;margin-bottom:var(--spacing-md);color:var(--text-primary)}.attachment-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:var(--spacing-md)}.attachment-card{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md);background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);text-decoration:none;color:var(--text-primary);transition:all .2s ease}.attachment-card:hover{background-color:var(--bg-tertiary);box-shadow:var(--shadow-sm)}.attachment-icon{font-size:1.5rem}.attachment-info{flex:1;min-width:0}.attachment-name{display:block;font-size:.875rem;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.attachment-size{display:block;font-size:.75rem;color:var(--text-tertiary)}.chat-input{padding:var(--spacing-lg);border-top:1px solid var(--border-color);background-color:var(--bg-primary)}.message-input-container{max-width:800px;margin:0 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ease;font-family:inherit;white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}.btn-primary:hover:not(:disabled){background-color:var(--primary-hover);border-color:var(--primary-hover)}.btn-secondary{background-color:transparent;color:var(--text-primary);border-color:var(--border-color)}.btn-secondary:hover:not(:disabled){background-color:var(--bg-secondary)}.btn-google{background-color:#fff;color:var(--text-primary);border-color:var(--border-color);box-shadow:var(--shadow-sm)}.btn-google:hover:not(:disabled){background-color:var(--bg-secondary);box-shadow:var(--shadow-md)}.btn svg{width:20px;height:20px}.link-text{color:var(--text-secondary);text-decoration:none;font-size:.875rem;transition:color .2s ease}.link-text:hover{color:var(--text-primary)}.link-primary{color:var(--primary-color);text-decoration:none;font-weight:500;transition:color .2s ease}.link-primary:hover{color:var(--primary-hover);text-decoration:underline}input,textarea,select{font-family:inherit;font-size:inherit;line-height:inherit}@media (max-width: 768px){.btn{padding:.625rem 1.25rem;font-size:.8125rem}}:root{--primary-color: #10a37f;--primary-hover: #0d8c6d;--secondary-color: #0084ff;--danger-color: #ef4444;--warning-color: #f59e0b;--success-color: #10b981;--bg-primary: #ffffff;--bg-secondary: #f7f7f8;--bg-tertiary: #ececf1;--border-color: #d9d9e3;--text-primary: #353740;--text-secondary: #6e6e80;--text-tertiary: #acacbe;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid 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#8e8ea0}}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6}#root{height:100%}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:var(--radius-lg)}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;gap:var(--spacing-md)}.loading-spinner{width:40px;height:40px;border:3px solid var(--bg-tertiary);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes 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