:root{--accent:#f37f00;--accent-hover:#c06400;--accent-soft:#f37f001f;--dark:#202020;--body:#212529;--muted:#616161;--border:#dee2e6;--bg:#f7f7f7;--white:#fff;--danger:#dc3545;--danger-bg:#fdf3f4;--font-head:"Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-body:"Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-body);background:var(--bg);color:var(--body);-webkit-font-smoothing:antialiased}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.app{background:var(--white);flex-direction:column;max-width:880px;height:100dvh;margin:0 auto;display:flex;box-shadow:0 0 50px #00000012}.app-header{background:var(--dark);color:var(--white);flex-shrink:0;justify-content:space-between;align-items:center;gap:16px;padding:14px 22px;display:flex}.app-header-brand{align-items:center;gap:12px;min-width:0;display:flex}.app-header-mark{background:var(--accent);width:34px;height:34px;font-family:var(--font-head);color:var(--white);border-radius:7px;flex-shrink:0;place-items:center;font-size:1rem;font-weight:700;display:grid}.app-header-text{min-width:0}.app-header-title{font-family:var(--font-head);text-transform:uppercase;letter-spacing:.03em;white-space:nowrap;text-overflow:ellipsis;font-size:.95rem;font-weight:700;line-height:1.2;overflow:hidden}.app-header-title span{color:var(--accent)}.app-header-sub{color:#a9a9a9;white-space:nowrap;text-overflow:ellipsis;font-size:.75rem;line-height:1.3;overflow:hidden}.app-main{background:var(--bg);flex:1;min-height:0;overflow-y:auto}.message-list{flex-direction:column;gap:14px;padding:26px 22px;display:flex}.message-list--empty{justify-content:center;align-items:center;height:100%}.empty-state{text-align:center;max-width:460px}.empty-state-mark{background:var(--accent-soft);border-radius:12px;place-items:center;width:56px;height:56px;margin:0 auto 18px;font-size:1.6rem;display:grid}.empty-state h2{font-family:var(--font-head);text-transform:uppercase;letter-spacing:.02em;color:var(--dark);margin-bottom:10px;font-size:1.25rem;font-weight:700}.empty-state p{color:var(--muted);margin-bottom:22px;font-size:.93rem;line-height:1.6}.suggestions{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.suggestion{font:inherit;border:1px solid var(--border);background:var(--white);color:var(--body);cursor:pointer;border-radius:999px;padding:9px 14px;font-size:.84rem;transition:border-color .15s,color .15s}.suggestion:hover{border-color:var(--accent);color:var(--accent-hover)}.message{display:flex}.message--user{justify-content:flex-end}.message--assistant{justify-content:flex-start}.message-bubble{white-space:pre-wrap;overflow-wrap:anywhere;border-radius:10px;max-width:80%;padding:12px 16px;font-size:.94rem;line-height:1.6}.message--user .message-bubble{background:var(--accent);color:var(--white);border-bottom-right-radius:3px}.message--assistant .message-bubble{background:var(--white);border:1px solid var(--border);border-left:3px solid var(--accent);border-bottom-left-radius:3px}.msg-link{color:var(--accent-hover);text-underline-offset:2px;overflow-wrap:anywhere;font-weight:500;text-decoration:underline}.msg-link:hover{color:var(--accent)}.message--user .msg-link{color:var(--white)}.typing{align-items:center;gap:7px;height:1.6em;display:inline-flex}.typing-label{color:var(--muted);font-size:.86rem;font-style:italic;animation:.35s both typing-label-in}@keyframes typing-label-in{0%{opacity:0;transform:translate(-4px)}to{opacity:1;transform:none}}.typing-dots{align-items:center;gap:4px;display:inline-flex}.typing-dots span{background:var(--accent);border-radius:50%;width:6px;height:6px;animation:1.2s ease-in-out infinite typing-bounce}.typing-dots span:nth-child(2){animation-delay:.15s}.typing-dots span:nth-child(3){animation-delay:.3s}@keyframes typing-bounce{0%,60%,to{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}@media (prefers-reduced-motion:reduce){.typing-dots span{opacity:.6;animation:none}.typing-label{animation:none}}.app-error{background:var(--danger-bg);color:var(--danger);border:1px solid;border-radius:6px;margin:0 22px 12px;padding:11px 15px;font-size:.87rem}.app-footer{border-top:1px solid var(--border);background:var(--white);flex-shrink:0;padding:15px 22px 17px}.message-input{align-items:flex-end;gap:10px;display:flex}.message-input-field{resize:none;font-family:var(--font-body);border:1px solid var(--border);background:var(--white);color:inherit;border-radius:6px;flex:1;max-height:160px;padding:12px 15px;font-size:.94rem;line-height:1.5;overflow-y:auto}.message-input-field:focus{border-color:var(--accent);box-shadow:none;outline:none}.btn{font-family:var(--font-head);text-transform:uppercase;letter-spacing:.03em;cursor:pointer;white-space:nowrap;border:1px solid #0000;border-radius:6px;padding:13px 20px;font-size:.8rem;font-weight:700;transition:background .3s}.btn:disabled{opacity:.45;cursor:not-allowed}.btn--send{background:var(--accent);color:var(--white)}.btn--send:hover:not(:disabled){background:var(--accent-hover)}.btn--stop{background:var(--white);color:var(--dark);border-color:var(--border)}.btn--stop:hover{border-color:var(--accent);color:var(--accent-hover)}.btn--ghost{color:#d8d8d8;background:0 0;border-color:#ffffff40;padding:8px 13px;font-size:.7rem}.btn--ghost:hover:not(:disabled){background:var(--accent);border-color:var(--accent);color:var(--white)}.app-disclaimer{color:var(--muted);text-align:center;margin-top:11px;font-size:.73rem;line-height:1.5}.app-disclaimer a{color:var(--accent-hover);text-decoration:underline}@media (width<=640px){.message-bubble{max-width:90%}.app-header-sub{display:none}}