:root{--bg:#050607;--panel:rgba(255,255,255,0.06);--border:rgba(255,255,255,0.10);--text:#e7e7e7;--muted:#a7a7a7;--accent:#ff7a18;--blue:#3b82f6}*{box-sizing:border-box}body,html{height:100%}body{margin:0;background:radial-gradient(1200px 700px at 20% 10%,rgba(59,130,246,.18),transparent 60%),radial-gradient(900px 600px at 80% 30%,rgba(255,122,24,.14),transparent 60%),var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,Apple Color Emoji,Segoe UI Emoji}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit;color:inherit}.container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.card{width:100%;max-width:440px;background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:22px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}.logo{width:34px;height:34px;border-radius:10px;background:radial-gradient(circle at 30% 30%,rgba(255,122,24,.9),rgba(255,122,24,.2)),radial-gradient(circle at 70% 70%,rgba(59,130,246,.85),rgba(59,130,246,.15));border:1px solid rgba(255,255,255,.18);box-shadow:0 0 22px rgba(255,122,24,.12)}.h1{font-size:22px;font-weight:700;margin:0}.p{margin:6px 0 0;color:var(--muted);font-size:13px;line-height:1.5}.field{margin-top:14px}.label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}.input{width:100%;padding:12px;border-radius:12px;background:rgba(0,0,0,.35);border:1px solid var(--border);outline:none}.input:focus{border-color:rgba(255,122,24,.55)}.btn{width:100%;margin-top:14px;padding:12px;border-radius:12px;border:1px solid rgba(255,122,24,.35);background:linear-gradient(180deg,rgba(255,122,24,.24),rgba(255,122,24,.12));cursor:pointer}.btn:hover{border-color:rgba(255,122,24,.55)}.btn:disabled{opacity:.6;cursor:not-allowed}.row{margin-top:12px;display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}.bad{border:1px solid rgba(239,68,68,.35);background:rgba(239,68,68,.1);border-radius:12px;color:#fecaca}.bad,.good{margin-top:12px;padding:10px 12px;font-size:12px}.good{border:1px solid rgba(34,197,94,.35);background:rgba(34,197,94,.1);border-radius:12px;color:#bbf7d0}.shell{min-height:100vh;display:flex;flex-direction:column}.topbar{justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border);background:rgba(0,0,0,.25);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.topbar,.topbar-left{display:flex;align-items:center}.topbar-left{gap:10px}.topbar-title{font-weight:700}.main{flex:1 1;max-width:1100px;width:100%;margin:0 auto;padding:18px}.panel{border:1px solid var(--border);background:rgba(0,0,0,.25);border-radius:16px;overflow:hidden}.chat{display:flex;flex-direction:column;height:calc(100vh - 140px);min-height:520px}.messages{flex:1 1;padding:16px;overflow:auto;display:flex;flex-direction:column;gap:12px}.msg{max-width:820px;padding:12px;border-radius:14px;border:1px solid var(--border);background:rgba(255,255,255,.05);white-space:pre-wrap;line-height:1.45;font-size:14px}.msg.user{align-self:flex-end;border-color:rgba(59,130,246,.35);background:rgba(59,130,246,.1)}.msg.ai{align-self:flex-start;border-color:rgba(255,122,24,.35);background:rgba(255,122,24,.1)}.composer{display:flex;gap:10px;padding:14px;border-top:1px solid var(--border);background:rgba(0,0,0,.25)}.textarea{flex:1 1;min-height:46px;max-height:140px;padding:12px;border-radius:12px;background:rgba(0,0,0,.35);border:1px solid var(--border);resize:vertical}.smallbtn{padding:12px 14px;border-radius:12px;border:1px solid rgba(255,122,24,.35);background:linear-gradient(180deg,rgba(255,122,24,.24),rgba(255,122,24,.12));cursor:pointer;white-space:nowrap}.smallbtn:disabled{opacity:.6;cursor:not-allowed}.select{padding:10px;border-radius:12px;background:rgba(0,0,0,.35);border:1px solid var(--border)}