:root{--bg: #050509;--bg-elevated: #101018;--bg-elevated-soft: #151522;--border-subtle: #262639;--accent: #5b8dff;--accent-soft: rgba(91, 141, 255, .12);--text-primary: #f5f5ff;--text-secondary: #a3a3c2;--text-muted: #707090;--user-bubble: #1f2933;--assistant-bubble: #111827;--error: #f97373;--radius-lg: 18px;--radius-pill: 999px;--shadow-soft: 0 18px 60px rgba(0, 0, 0, .5);--shadow-subtle: 0 1px 0 rgba(255, 255, 255, .03);--transition-fast: .15s ease-out;--font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif}*,*:before,*:after{box-sizing:border-box}html,body,#root{margin:0;padding:0;height:100%}body{font-family:var(--font-sans);background:radial-gradient(circle at top left,#111827 0,#020309 55%);color:var(--text-primary)}.app-root{min-height:100vh;display:flex;align-items:stretch;justify-content:center;padding:16px}.chat-shell{width:100%;max-width:1024px;margin:auto;background:#03030ae6;border-radius:24px;border:1px solid rgba(148,163,184,.12);box-shadow:var(--shadow-soft);display:flex;flex-direction:column;overflow:hidden}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid rgba(148,163,184,.13);background:linear-gradient(135deg,#0f172afa,#030712fa);box-shadow:var(--shadow-subtle)}.chat-title{display:inline-flex;align-items:center;gap:8px;font-size:.9rem;letter-spacing:.05em;text-transform:uppercase;color:var(--text-secondary)}.chat-logo-dot{width:10px;height:10px;border-radius:999px;background:radial-gradient(circle at 30% 30%,#ffffff,var(--accent));box-shadow:0 0 0 4px #5b8dff47}.chat-status{font-size:.8rem;color:var(--text-muted)}.chat-window{flex:1;padding:16px 18px 12px;overflow-y:auto;scrollbar-width:thin;scrollbar-color:#4b5563 transparent}.chat-window::-webkit-scrollbar{width:8px}.chat-window::-webkit-scrollbar-track{background:transparent}.chat-window::-webkit-scrollbar-thumb{background:#374151;border-radius:999px}.chat-message{margin-bottom:12px;display:flex;flex-direction:column}.chat-message-meta{font-size:.75rem;color:var(--text-muted);margin-bottom:4px}.chat-message-role{text-transform:uppercase;letter-spacing:.08em}.chat-message-bubble{max-width:80%;padding:10px 12px;border-radius:var(--radius-lg);font-size:.92rem;line-height:1.5;border:1px solid rgba(148,163,184,.23);background:radial-gradient(circle at top left,#111827,#020513)}.chat-message-bubble p{margin:0;white-space:pre-wrap}.chat-message--user{align-items:flex-end}.chat-message--assistant{align-items:flex-start}.chat-message--user .chat-message-bubble{background:linear-gradient(135deg,#111827,#020617);border-color:#94a3b82b}.chat-message--assistant .chat-message-bubble{background:linear-gradient(135deg,#020617,#0b1220)}@media(max-width:640px){.chat-message-bubble{max-width:100%}}.chat-message-bubble.is-loading{display:inline-flex;align-items:center;gap:6px;padding-inline:10px}.chat-message-bubble.is-loading .dot{width:6px;height:6px;border-radius:999px;background:var(--text-secondary);opacity:.7;animation:chat-dot 1s infinite ease-in-out}.chat-message-bubble.is-loading .dot:nth-child(2){animation-delay:.15s}.chat-message-bubble.is-loading .dot:nth-child(3){animation-delay:.3s}@keyframes chat-dot{0%,80%,to{transform:translateY(0);opacity:.5}40%{transform:translateY(-3px);opacity:1}}.chat-input-area{border-top:1px solid rgba(148,163,184,.2);padding:10px 12px 12px;background:radial-gradient(circle at top,#020617 0,#020309 55%)}.chat-error{font-size:.8rem;color:var(--error);background:#f8717112;border-radius:10px;padding:6px 10px;margin:0 0 8px;border:1px solid rgba(248,113,113,.5)}.chat-form{display:flex;gap:8px;align-items:flex-end}.chat-input{flex:1;resize:none;border-radius:999px;border:1px solid var(--border-subtle);background:var(--bg-elevated-soft);color:var(--text-primary);padding:10px 14px;font-size:.9rem;line-height:1.4;outline:none;max-height:120px;transition:border-color var(--transition-fast),box-shadow var(--transition-fast),background var(--transition-fast)}.chat-input::placeholder{color:var(--text-muted)}.chat-input:focus{border-color:var(--accent);box-shadow:0 0 0 1px #5b8dff80;background:#020617}.chat-input:disabled{opacity:.7;cursor:not-allowed}.chat-send-btn{width:40px;height:40px;border-radius:var(--radius-pill);border:1px solid rgba(148,163,184,.45);background:radial-gradient(circle at 30% 0,#1d4ed8,#020617);color:var(--text-primary);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;transition:transform var(--transition-fast),box-shadow var(--transition-fast),border-color var(--transition-fast),background .2s ease-out}.chat-send-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 12px 30px #0f172acc;border-color:#bfdbfee6}.chat-send-btn:active:not(:disabled){transform:translateY(0);box-shadow:0 6px 16px #0f172ae6}.chat-send-btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}.send-icon{width:18px;height:18px}.send-loading-spinner{width:16px;height:16px;border-radius:999px;border:2px solid rgba(191,219,254,.5);border-top-color:#bfdbfe;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.chat-hint{margin:6px 2px 0;font-size:.75rem;color:var(--text-muted)}.chat-hint code{font-family:JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:.7rem;padding:2px 5px;border-radius:999px;background:#0f172ae6;border:1px solid rgba(51,65,85,.8)}@media(max-width:768px){.chat-shell{border-radius:18px}.chat-header,.chat-window{padding-inline:12px}.chat-input-area{padding-inline:10px}}