:root{--bg:#0f1115;--card:#171a21;--line:#272c36;--text:#e8eaf0;--mute:#9aa3b2;--acc:#6ea8fe;--ok:#4ade80;--bad:#f87171}
@media (prefers-color-scheme:light){:root{--bg:#f6f7fa;--card:#fff;--line:#dfe3ea;--text:#16181d;--mute:#5b6472;--acc:#2563eb;--ok:#15803d;--bad:#b91c1c}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 system-ui,Segoe UI,sans-serif}
a{color:var(--acc)}
.top{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;border-bottom:1px solid var(--line)}
.brand{font-weight:700;font-size:1.2rem;text-decoration:none;color:var(--text)}
nav{display:flex;gap:16px;align-items:center}
main{max-width:1000px;margin:0 auto;padding:24px 16px;min-height:70vh}
footer{text-align:center;color:var(--mute);padding:24px;font-size:.9rem}
h1{font-size:2rem;margin:.2em 0}h2{margin-top:1.5em}
.lead{color:var(--mute);font-size:1.1rem;max-width:640px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px}
.card h3{margin:.1em 0}.price{font-size:1.6rem;font-weight:700}
button,.btn{background:var(--acc);color:#fff;border:0;border-radius:8px;padding:9px 16px;font:inherit;cursor:pointer;text-decoration:none;display:inline-block}
button.ghost{background:transparent;color:var(--acc);border:1px solid var(--line)}
button.danger{background:var(--bad)}
button:disabled{opacity:.5;cursor:default}
input,select{background:var(--bg);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:9px 12px;font:inherit;width:100%}
label{display:block;margin:12px 0 4px;color:var(--mute);font-size:.9rem}
form{max-width:380px}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line);font-size:.92rem;overflow-wrap:anywhere}
th{color:var(--mute);font-weight:500}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin:16px 0;border-bottom:1px solid var(--line)}
.tabs a{padding:8px 14px;text-decoration:none;color:var(--mute);border-bottom:2px solid transparent}
.tabs a.on{color:var(--text);border-color:var(--acc)}
.msg{padding:10px 14px;border-radius:8px;margin:12px 0}
.msg.err{background:color-mix(in srgb,var(--bad) 15%,transparent);color:var(--bad)}
.msg.ok{background:color-mix(in srgb,var(--ok) 15%,transparent);color:var(--ok)}
pre{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:12px;overflow-x:auto;font-size:.85rem}
code{font-family:ui-monospace,Consolas,monospace}
.secret{font-family:ui-monospace,Consolas,monospace;word-break:break-all;background:var(--bg);padding:10px;border-radius:8px;border:1px dashed var(--acc)}
.big{font-size:2.2rem;font-weight:700}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.chat{max-height:380px;overflow:auto;display:flex;flex-direction:column;gap:10px;margin:12px 0}
.bubble{padding:10px 14px;border-radius:12px;background:var(--card);border:1px solid var(--line);max-width:92%;white-space:pre-wrap}
.bubble.me{align-self:flex-end;background:var(--acc);color:#fff;border:0}
.scroll{overflow-x:auto}
form.wide{max-width:none;margin-top:10px}