:root{--bg-primary: #0f1117;--bg-secondary: #1a1d2e;--bg-card: #1e2235;--bg-input: #252840;--bg-hover: #2a2d45;--bg-bubble-out: #4f6ef7;--bg-bubble-in: #252840;--text-primary: #e8eaf6;--text-secondary: #8b92b8;--text-muted: #5a6080;--text-on-accent: #ffffff;--border: #2d3155;--accent: #4f6ef7;--accent-hover: #6b85ff;--online: #22c55e;--offline: #6b7280;--danger: #ef4444;--warning: #f59e0b;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px;--radius-full: 9999px;--shadow: 0 4px 24px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 48px rgba(0, 0, 0, .6);--font: "Segoe UI", "Noto Sans Thai", sans-serif;--transition: .2s ease}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased}#root{height:100%;display:flex;align-items:center;justify-content:center}button{font-family:var(--font);cursor:pointer;border:none;outline:none;transition:var(--transition)}input,textarea{font-family:var(--font);outline:none;border:none}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}@keyframes dots{0%{content:"."}33%{content:".."}66%{content:"..."}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}