:root{color-scheme:dark;--bg:#0d1017;--card:#171d29;--line:#2b3447;--muted:#a0abc0;--ink:#edf1fc;--accent:#b9c8ff}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 75% 0,#20294566,transparent 55%),var(--bg);color:var(--ink);font:15px/1.6 system-ui,sans-serif}main{max-width:1180px;margin:auto;padding:28px 36px}header{display:flex;justify-content:space-between;align-items:center;gap:18px;padding-bottom:26px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:13px}.brand b{font-size:17px}.brand small{display:block;color:var(--muted);font-size:12px}.mark{display:block;border-radius:12px;width:44px;height:44px;object-fit:contain;flex:none}button,input,select,textarea{font:inherit}button{border:1px solid transparent;background:var(--accent);color:#172343;border-radius:12px;padding:11px 18px;font-weight:650;cursor:pointer}button:hover{filter:brightness(1.08)}button:disabled{opacity:.45;cursor:wait}.ghost{background:#151c29;color:var(--ink);border-color:var(--line)}input,select,textarea{background:#101622;color:var(--ink);border:1px solid var(--line);border-radius:12px;padding:13px;width:100%}input:focus,select:focus,textarea:focus,button:focus-visible{outline:2px solid #91a7ff;outline-offset:3px}.entry{max-width:700px;margin:80px auto}.eyebrow{letter-spacing:2px;font-size:11px;color:var(--accent);font-weight:700}h1{font-size:58px;line-height:1.13;letter-spacing:-2px;margin:20px 0}.entry p{color:var(--muted);font-size:16px}label{display:block;font-size:13px;color:var(--muted)}.key-row{display:flex;gap:12px;margin-top:9px}.key-row input{flex:1;min-width:0}.key-row button{white-space:nowrap}#login-note{min-height:24px;color:#ffb4b4}.toolbar{display:flex;gap:15px;align-items:end;padding:24px 0}.toolbar label{flex:1;max-width:430px}.toolbar select{margin-top:6px}.balance{margin-left:auto;min-width:130px}.balance small{display:block;color:var(--muted);font-size:12px}.balance b{font-size:23px;font-variant-numeric:tabular-nums}#messages{height:clamp(220px,calc(100dvh - 430px),700px);overflow:auto;border:1px solid var(--line);border-radius:18px;padding:25px;background:#111722aa;overscroll-behavior:contain}.empty{display:grid;place-content:center;text-align:center;height:100%;font-size:24px;color:#d5dff7}.empty small{display:block;font-size:14px;color:var(--muted);margin-top:8px}.msg{margin:0 0 24px;max-width:94%;white-space:pre-wrap;overflow-wrap:anywhere}.msg .who{display:block;font-size:11px;letter-spacing:.8px;text-transform:uppercase;color:var(--muted);margin-bottom:8px}.msg.user{background:#29344c;border:1px solid #3e5074;border-radius:16px;padding:16px 20px;margin-left:auto;width:fit-content}.msg.error{color:#ffb4b4}#chat-form{margin-top:16px}textarea{resize:vertical;min-height:80px;max-height:300px}.composer-bottom{display:flex;align-items:center;gap:10px;margin-top:10px}.composer-bottom span{flex:1;color:var(--muted);font-size:12px}dialog{background:var(--card);color:var(--ink);border:1px solid var(--line);border-radius:20px;padding:28px;max-width:650px;width:calc(100% - 32px);max-height:85vh}dialog::backdrop{background:#000a}.dialog-head{display:flex;align-items:center;justify-content:space-between;gap:15px}h2{margin:0}li{margin:12px 0}code{overflow-wrap:anywhere;color:var(--accent)}.sr-only{position:absolute;clip:rect(0,0,0,0);width:1px;height:1px;overflow:hidden}[hidden]{display:none!important}@media(max-width:700px){main{padding:18px}header{padding-bottom:18px}.brand b{font-size:14px}.brand small{font-size:10px}.mark{width:36px;height:36px;font-size:22px}header button{font-size:12px;padding:10px}.entry{margin:55px 0}h1{font-size:44px}.key-row{flex-direction:column}.toolbar{flex-wrap:wrap;gap:12px}.toolbar label{max-width:none;flex-basis:100%}.balance{margin-left:0;margin-right:auto}.toolbar button{font-size:12px;padding:9px 12px}#messages{padding:16px}.msg{max-width:100%}.composer-bottom{flex-wrap:wrap}.composer-bottom span{flex-basis:100%}.composer-bottom button{flex:1;font-size:12px}}