/* Estilos simples iniciais; ajuste visual depois */
:root{--bg:#0b0b10;--fg:#e8e8ea;--accent:#d4af37}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:Inter,system-ui,Segoe UI,Roboto}
#chat-container{max-width:800px;margin:6rem auto;padding:1rem;border-radius:8px}
#messages{min-height:300px;background:#07070a;border:1px solid rgba(255,255,255,0.03);padding:1rem;overflow:auto;border-radius:6px}
.msg-user{background:rgba(212,175,55,0.08);color:#e8e8ea;padding:0.6rem;border-radius:6px;margin:0.4rem 0;text-align:right}
.msg-ai{background:rgba(255,255,255,0.02);color:#e8e8ea;padding:0.6rem;border-radius:6px;margin:0.4rem 0;text-align:left}
#input-row{display:flex;gap:0.5rem;margin-top:0.75rem}
#user-input{flex:1;padding:0.6rem;border-radius:6px;border:1px solid rgba(255,255,255,0.04);background:#0b0b10;color:var(--fg)}
#send-btn{padding:0.6rem 0.9rem;border-radius:6px;background:var(--accent);color:#07070a;border:none}