*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:Inter,system-ui,Segoe UI,Roboto,Helvetica,Arial;background:#0b0c10;color:#e8e8e8}
main{min-height:100vh;display:grid;place-items:center;text-align:center;padding:24px}
a{color:#7aa2ff}
/* Floating launcher */
#chat-launcher{position:fixed;right:18px;bottom:18px;width:64px;height:64px;border-radius:999px;border:none;cursor:pointer;background:#111218;display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.35)}
#chat-launcher img{width:36px;height:36px}
#chat-launcher:hover{transform:translateY(-2px)}
/* Window */
#chat-window{position:fixed;right:18px;bottom:96px;width:min(420px,calc(100vw - 24px));height:640px;max-height:calc(100vh - 140px);background:#0f1117;border:1px solid #1f2230;border-radius:16px;box-shadow:0 16px 40px rgba(0,0,0,.5);display:none;overflow:hidden}
#chat-window[aria-hidden="false"]{display:block}
.header{display:flex;align-items:center;gap:10px;padding:12px 14px;background:linear-gradient(180deg,#131623,#0f1117);border-bottom:1px solid #1f2230}
.header img{width:24px;height:24px}
.header h3{margin:0;font-size:15px;font-weight:600}
.controls{margin-left:auto;display:flex;gap:8px}
.icon-btn{width:28px;height:28px;display:grid;place-items:center;border-radius:8px;border:1px solid #23273a;background:#151829;color:#c9d1d9;cursor:pointer}
.icon-btn:hover{background:#1a1f36}
#messages{padding:14px;height:calc(100% - 52px - 88px);overflow:auto;display:flex;flex-direction:column;gap:10px}
.msg{max-width:82%;padding:10px 12px;border-radius:12px;line-height:1.35;font-size:14px;word-wrap:break-word}
.msg.bot{background:#151a28;border:1px solid #1f2230;align-self:flex-start}
.msg.user{background:#1b2a1f;border:1px solid #223527;align-self:flex-end}
.msg .btn-link{margin-top:6px;display:inline-block;padding:6px 10px;border-radius:8px;border:1px solid #27304a;background:#172038;color:#dbe2ff;text-decoration:none;font-size:12px}
.suggests{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.chip{border:1px solid #2a2f45;background:#131a2f;border-radius:999px;padding:6px 10px;font-size:12px;cursor:pointer}
.input{padding:10px;border-top:1px solid #1f2230;background:#10141d}
.input-row{display:flex;gap:10px}
.input-row input{flex:1;padding:12px;border-radius:10px;background:#0c1020;border:1px solid #1f2230;color:#e8e8e8;outline:none}
.input-row button{padding:0 14px;border-radius:10px;border:1px solid #23273a;background:#181c2f;color:#d6d9e0;cursor:pointer;font-weight:600}
.hint{opacity:.7;font-size:12px;margin-top:6px}
@media (max-width:520px){#chat-window{right:10px;bottom:86px;width:calc(100vw - 20px);height:72vh}}