:root{color-scheme:light;--accent:#f26a3d;--ink:#1d1d1f;--muted:#6e6e73;--subtle:#8e8e93;--line:rgba(0,0,0,.09);--fill:#f5f5f7;--card:#fff;--font:-apple-system,BlinkMacSystemFont,"SF Pro Text",Inter,"Segoe UI",sans-serif}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:#fbfbfc;color:var(--ink);font:13px/1.45 var(--font);-webkit-font-smoothing:antialiased}.appshell{display:grid;grid-template-columns:224px minmax(0,1fr);min-height:100vh}.rail{position:sticky;top:0;height:100vh;background:var(--fill);border-right:1px solid var(--line);padding:18px 12px 14px;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:9px;padding:2px 8px 18px;text-decoration:none;color:var(--ink);font-size:15px;font-weight:700}.brand img{width:22px;height:22px;border-radius:6px}.brand span{color:var(--subtle);font-weight:500}.rail nav{flex:1}.rail nav p{margin:18px 8px 4px;font-size:11px;font-weight:600;color:var(--subtle)}.rail nav p:first-child{margin-top:0}.rail nav a{display:flex;align-items:center;height:31px;padding:0 9px;margin:1px 0;border-radius:8px;color:var(--ink);text-decoration:none}.rail nav a:hover{background:rgba(0,0,0,.045)}.rail nav a.on{background:rgba(0,0,0,.07);font-weight:600}.rail nav small{margin-left:auto;padding:2px 6px;border-radius:20px;background:rgba(242,106,61,.12);color:#c44c27;font-size:9px;font-weight:700}.rail footer{border-top:1px solid var(--line);padding:12px 8px 0;display:flex;flex-direction:column}.rail footer b{font-size:12.5px}.rail footer span{font-size:11.5px;color:var(--muted)}.assistant{width:100%;max-width:1060px;padding:24px 32px 56px}.assistant>header{margin-bottom:18px}.crumb{font-size:11px;color:var(--subtle);margin-bottom:6px}.crumb span{padding:0 4px}.assistant>header h1{margin:0;font-size:20px;line-height:1.2}.assistant>header p{margin:3px 0 0;color:var(--muted);font-size:12.5px}.panel{margin:0 0 14px;background:#fff;border:1px solid var(--line);border-radius:11px;overflow:hidden;box-shadow:0 1px 2px rgba(0,0,0,.02)}.panelhead{height:58px;padding:10px 15px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.panelhead h2{margin:0;font-size:15px}.panelhead p{margin:2px 0 0;color:var(--muted);font-size:11.5px}.panel>h3{margin:14px 16px 3px;font-size:13px}.panel>h3+p{margin:0 16px;color:var(--muted);font-size:12px;max-width:760px}.chip{display:inline-block;border-radius:20px;padding:2px 8px;font-size:10.5px;font-weight:600}.chip.green{color:#1e7d34;background:#e6f6ea}.chip.orange{color:#c44c27;background:rgba(242,106,61,.12)}.messages{min-height:150px;max-height:300px;overflow:auto;display:flex;flex-direction:column;gap:7px;margin:12px 16px;padding:12px;background:#fafafc;border:1px solid var(--line);border-radius:9px}.msg{max-width:78%;padding:8px 10px;border-radius:10px;background:#ececef;white-space:pre-wrap;font-size:12.5px}.msg.user{align-self:flex-end;background:#252527;color:#fff}.preview{border-left:3px solid var(--accent);padding:10px;background:#fff7f3;margin:10px 16px;font-size:12px}.panel form{border-top:1px solid var(--line);padding:12px 16px 14px}.panel form>label{display:block;margin-bottom:5px;color:var(--muted);font-size:11.5px}.row{display:flex;align-items:center;gap:8px}.panel input,dialog input{width:100%;height:34px;border:1px solid rgba(0,0,0,.14);border-radius:8px;padding:0 10px;font:13px var(--font)}button{height:34px;border:1px solid rgba(0,0,0,.14);border-radius:8px;padding:0 13px;background:#fff;color:var(--ink);font:600 12.5px var(--font);cursor:pointer}.panel form button,#pvconfirm{background:var(--accent);border-color:var(--accent);color:#fff}.foot{font-size:11.5px;color:var(--muted);margin:4px 2px}dialog{max-width:460px;border:0;border-radius:12px;padding:22px}dialog::backdrop{background:#0007}@media(max-width:760px){.appshell{display:block}.rail{height:auto;position:sticky;z-index:10;flex-direction:row;overflow:auto;padding:9px 10px}.brand{padding:2px 8px}.rail nav{display:flex}.rail nav p,.rail footer{display:none}.rail nav a{white-space:nowrap}.assistant{padding:18px 12px 40px}.msg{max-width:92%}}
/* Modern Ledger 2026 */
:root{--accent:#f06437;--ink:#1c211f;--muted:#676b67;--subtle:#92958f;--line:rgba(38,43,40,.12);--fill:#ebe8e1;--card:#fffefa}.appshell{grid-template-columns:220px minmax(0,1fr)}.rail{background:#ebe8e1;border-color:#d8d4ca;padding:19px 13px}.rail nav p{letter-spacing:.12em;text-transform:uppercase;font-size:9px}.rail nav a{height:34px;border-radius:8px}.rail nav a.on{background:#202522;color:#fff;box-shadow:0 5px 13px rgba(32,37,34,.14)}.assistant{max-width:none;padding:27px 34px;background-color:#f7f5f0;background-image:linear-gradient(rgba(49,54,50,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(49,54,50,.018) 1px,transparent 1px);background-size:32px 32px}.assistant>header{border-bottom:1px solid #b8b9b5;padding-bottom:12px}.crumb{font:600 9px ui-monospace,"SF Mono",monospace;text-transform:uppercase;letter-spacing:.11em}.assistant>header h1{font-size:23px}.panel{background:#fffefa;border-color:#d7d4cc;border-radius:10px;box-shadow:0 6px 18px rgba(44,48,45,.045);max-width:1080px}.panelhead{background:#202522;color:#fff}.panelhead p{color:#aeb2ad}.messages{background:#f5f2ec;border-color:#ddd9d0}.msg{border-radius:9px}.msg.user{background:#202522}.panel input,dialog input,button{border-radius:7px}.panel form button,#pvconfirm{background:#f06437}.foot{max-width:1080px}
@media(max-width:760px){.rail{display:grid;grid-template-columns:auto 1fr;height:auto;overflow:visible;padding:8px 10px 7px}.brand{align-self:start;padding:3px 8px 0 2px}.brand span{display:none}.rail nav{display:flex;flex-wrap:wrap;gap:2px;min-width:0}.rail nav a{height:27px;padding:0 7px;margin:0;font-size:11px}.rail nav small{display:none}}
@media(max-width:760px){.assistant{padding:16px 12px 36px}.assistant>header{margin-bottom:12px}.panelhead{height:auto;min-height:58px}.panel>h3{margin-top:12px}.messages{min-height:125px;margin:10px 12px;padding:10px}.panel form{padding:10px 12px 12px}.panel input,button{min-height:40px}.row{align-items:stretch}.foot{text-align:center}}

@media(max-width:760px){.rail{display:flex;flex-wrap:nowrap;overflow-x:auto}.rail nav{display:flex;flex-wrap:nowrap}}