:root{--bg: #0b1220;--panel: #0f1a33;--border: #1f2a44;--text: #e6eaf2;--muted: #93a4c7;--brand: #7c5cff;--brand2: #27c2ff;--danger: #ff5c7a}*{box-sizing:border-box}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;background:radial-gradient(1200px 600px at 10% 0%,#101b3a 0%,var(--bg) 55%);color:var(--text)}a{color:inherit}.container{max-width:1100px;margin:0 auto;padding:20px}.header{position:sticky;top:0;z-index:10;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0b1220d9;border-bottom:1px solid var(--border)}.header-inner{max-width:1100px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px}.brand{display:flex;flex-direction:column;gap:2px}.brand-title{font-weight:800;letter-spacing:.2px}.muted{color:var(--muted)}.card{background:linear-gradient(180deg,#0f1a33eb,#0f1a33c7);border:1px solid var(--border);border-radius:14px;padding:16px;box-shadow:0 10px 30px #00000040}.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.grow{flex:1}input,select,button,textarea{border-radius:12px;border:1px solid #2b3a5f;background:#0b1220e6;color:var(--text);padding:10px 12px;outline:none}textarea{resize:vertical;min-height:44px;max-height:180px}input:focus,select:focus,textarea:focus{border-color:#7c5cffd9;box-shadow:0 0 0 3px #7c5cff26}button{cursor:pointer}button.primary{border-color:#7c5cffb3;background:linear-gradient(135deg,#7c5cffeb,#27c2ffad)}button.ghost{background:transparent}button.danger{border-color:#ff5c7aa6;background:#ff5c7a26}.grid{display:grid;grid-template-columns:360px 1fr;gap:16px}@media(max-width:980px){.grid{grid-template-columns:1fr}}.messages{display:flex;flex-direction:column;gap:10px;min-height:420px;max-height:62vh;overflow:auto;padding:10px;border-radius:14px;border:1px solid var(--border);background:#081026b8}.msg{display:flex;flex-direction:column;gap:6px;max-width:86%}.msg.user{align-self:flex-end}.msg.assistant{align-self:flex-start}.bubble{padding:10px 12px;border-radius:12px;border:1px solid rgba(255,255,255,.12);white-space:pre-wrap;line-height:1.35}.bubble p{margin:0 0 10px}.bubble p:last-child{margin-bottom:0}.bubble ul,.bubble ol{margin:8px 0 8px 20px;padding:0}.bubble li{margin:4px 0}.bubble code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:.92em;background:#ffffff14;border:1px solid rgba(255,255,255,.12);padding:1px 6px;border-radius:8px}.bubble pre{margin:10px 0;padding:10px 12px;background:#00000040;border:1px solid rgba(255,255,255,.12);border-radius:12px;overflow:auto}.bubble pre code{background:transparent;border:none;padding:0}.msg.user .bubble{border-color:#7c5cff99;background:#7c5cff1a}.msg.assistant .bubble{border-color:#27c2ff73;background:#27c2ff14}.meta{font-size:12px;color:var(--muted)}.error{border:1px solid rgba(255,92,122,.55);background:#ff5c7a1f;padding:10px 12px;border-radius:12px}