:root{
  --page-max:1180px;--page-pad:24px;--panel-radius:14px;--control-radius:10px;
  --font:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --bg:#f5f6f8;--surface:#fff;--text:#191c20;--muted:#646b73;--line:#dde1e6;
  --primary:#26364a;--sidebar-active:#26364a;
}
*{box-sizing:border-box} body{margin:0;font-family:var(--font);color:var(--text);background:var(--bg)}
a{color:inherit}.shell{min-height:100vh}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:14px;min-height:76px;padding:10px var(--page-pad);background:var(--surface);border-bottom:1px solid var(--line)}
.env-logo{width:52px;height:52px;border-radius:12px;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:800}.app-id{flex:1}.app-title{font-size:20px;font-weight:750}.app-subtitle{font-size:13px;color:var(--muted);margin-top:3px}.user{color:var(--muted);font-size:14px}
.layout{max-width:var(--page-max);margin:0 auto;display:grid;grid-template-columns:220px minmax(0,1fr);gap:24px;padding:24px var(--page-pad) 48px}
.sidebar{display:flex;flex-direction:column;gap:6px}.sidebar a{display:block;text-decoration:none;padding:10px 12px;border-radius:var(--control-radius)}.sidebar a:hover{background:var(--surface)}.sidebar a.active{background:var(--surface);font-weight:750;box-shadow:inset 3px 0 0 var(--sidebar-active)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--panel-radius);padding:20px;margin-bottom:16px}.page-title{margin-bottom:18px}.page-title h2{margin:0 0 6px;font-size:26px}.muted{color:var(--muted)}
input,select,textarea,button{font:inherit}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:var(--control-radius);padding:10px 12px;background:#fff;color:var(--text)}textarea{min-height:180px;resize:vertical}
button{border:1px solid var(--line);border-radius:var(--control-radius);padding:10px 14px;background:#fff;cursor:pointer}.primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.form-grid{display:grid;grid-template-columns:1fr 220px;gap:14px}.form-actions{display:flex;gap:8px;align-items:center;justify-content:flex-end;margin-top:12px}
.notes-toolbar{display:grid;grid-template-columns:minmax(0,1fr) 220px auto;gap:10px;margin-bottom:16px}.note-list{display:grid;gap:10px}.note-row{display:grid;grid-template-columns:minmax(0,1fr) 160px auto;gap:16px;align-items:center;padding:15px 16px;margin:0}.note-row h3{margin:0 0 4px}.note-row p{margin:0;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.note-meta{font-size:13px;color:var(--muted)}.actions{display:flex;gap:7px}
.category-row{display:grid;grid-template-columns:minmax(0,1fr) 100px auto;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.stat strong{display:block;font-size:30px}.stat span{color:var(--muted)}
@media(max-width:720px){.layout{grid-template-columns:1fr}.sidebar{display:flex;flex-direction:row;overflow:auto}.notes-toolbar,.form-grid{grid-template-columns:1fr}.note-row{grid-template-columns:1fr}.stat-grid{grid-template-columns:1fr}.user{display:none}}