:root{--purple:#321064;--purple2:#5a1597;--orange:#ff7800;--bg:#f7f2fb;--text:#111827;--muted:#6b7280}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:radial-gradient(circle at top left,rgba(255,120,0,.22),transparent 35%),radial-gradient(circle at bottom right,rgba(50,16,100,.25),transparent 40%),linear-gradient(135deg,#fff,var(--bg));min-height:100vh;color:var(--text)}
.chat-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:18px}.chat-card{width:min(920px,100%);height:min(760px,94vh);background:rgba(255,255,255,.94);border-radius:30px;box-shadow:0 24px 70px rgba(31,13,65,.2);overflow:hidden;display:flex;flex-direction:column;border:1px solid rgba(255,255,255,.8)}
.chat-header{background:linear-gradient(135deg,var(--purple),var(--purple2),var(--orange));color:#fff;padding:22px;display:flex;align-items:center;gap:16px}.logo{width:70px;height:70px;border-radius:20px;background:rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;font-weight:900;font-size:25px;border:2px solid rgba(255,255,255,.5)}
.chat-header h1{margin:0;font-size:26px}.chat-header p{margin:6px 0 0;color:rgba(255,255,255,.82)}.lang-btn{margin-left:auto;border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.13);color:#fff;border-radius:999px;padding:10px 14px;font-weight:800;cursor:pointer}
.messages{flex:1;overflow:auto;padding:22px;background:linear-gradient(180deg,#fff,#fbf8ff)}.msg{max-width:78%;padding:14px 16px;border-radius:18px;margin:0 0 14px;line-height:1.55;white-space:pre-wrap;box-shadow:0 6px 18px rgba(17,24,39,.05)}
.msg b{display:block;margin-bottom:4px}.bot{background:#f3e8ff;color:#27104c;border-top-left-radius:6px}.user{background:linear-gradient(135deg,var(--orange),#ff9a18);color:#fff;margin-left:auto;border-top-right-radius:6px}.typing{opacity:.75}
.quick-actions{padding:12px 18px;display:flex;gap:9px;flex-wrap:wrap;border-top:1px solid #eee}.quick-actions button{border:1px solid #eadffc;background:#fff;color:var(--purple);padding:9px 12px;border-radius:999px;font-weight:800;cursor:pointer}
.chat-form{display:flex;gap:10px;padding:16px 18px 20px;background:#fff;border-top:1px solid #eee}.chat-form input{flex:1;border:1px solid #e5e7eb;border-radius:16px;padding:15px;font-size:16px}.chat-form button{border:0;border-radius:16px;background:linear-gradient(135deg,var(--purple),var(--orange));color:#fff;font-weight:900;padding:0 22px;cursor:pointer}
[dir="rtl"] .user{margin-left:0;margin-right:auto}[dir="rtl"] .lang-btn{margin-left:0;margin-right:auto}@media(max-width:640px){.chat-card{height:96vh;border-radius:22px}.chat-header{padding:18px}.chat-header h1{font-size:20px}.logo{width:58px;height:58px}.msg{max-width:92%}.chat-form button{padding:0 16px}}