:root{
  --bg:#09101d;--surface:#0f1828;--surface2:#152237;--surface3:#1b2a42;--text:#edf3fb;--muted:#9bacbf;
  --line:#293a55;--accent:#69a7ff;--accent2:#a9cdff;--safe:#25865d;--root:#536dfe;--warn:#c88822;--danger:#c24f4f;
  --shadow:0 18px 55px rgba(0,0,0,.22);--code:#070d17;
}
:root.light{
  --bg:#f4f7fb;--surface:#fff;--surface2:#edf3fa;--surface3:#e4ecf7;--text:#162237;--muted:#5b6980;
  --line:#d5dfec;--accent:#245fd4;--accent2:#174da9;--code:#f5f8fc;--shadow:0 16px 40px rgba(34,55,83,.10);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
button,input,select,textarea{font:inherit}button{cursor:pointer}code,pre{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
.topbar{height:64px;position:fixed;inset:0 0 auto 0;z-index:50;display:flex;align-items:center;gap:12px;padding:0 18px;background:color-mix(in srgb,var(--surface) 94%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;flex:1}.logo{width:38px;height:38px;display:grid;place-items:center;background:var(--accent);border-radius:10px;color:white;font-weight:900}.brand strong,.brand small{display:block}.brand small{font-size:11px;color:var(--muted)}
.icon-btn{border:1px solid var(--line);background:var(--surface2);color:var(--text);border-radius:9px;min-width:40px;min-height:40px}.mobile-only{display:none}
.app-shell{padding-top:64px;min-height:100vh}.sidebar{position:fixed;top:64px;bottom:0;left:0;width:255px;padding:16px;background:var(--surface);border-right:1px solid var(--line);overflow:auto;z-index:30}
.sidebar nav{display:grid;gap:6px}.nav-btn{border:0;background:transparent;color:var(--muted);padding:11px 12px;border-radius:10px;text-align:left;display:flex;align-items:center;gap:10px}.nav-btn:hover,.nav-btn.active{background:var(--surface2);color:var(--text)}.sidebar-note{margin-top:20px;border:1px solid var(--line);background:var(--surface2);padding:11px;border-radius:10px;color:var(--muted);font-size:12px}
main{margin-left:255px;padding:28px clamp(18px,4vw,54px) 80px;max-width:1550px}.view{display:none}.active-view{display:block}.page-head{margin-bottom:22px}.eyebrow{margin:0;color:var(--accent2);font-size:11px;font-weight:800;letter-spacing:.14em}.page-head h1{font-size:clamp(30px,4vw,46px);line-height:1.05;margin:6px 0 10px}.page-head p:last-child{color:var(--muted);max-width:860px}
.case-grid,.esc-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;padding:16px;border:1px solid var(--line);border-radius:15px;background:var(--surface);box-shadow:var(--shadow)}
label{display:grid;gap:5px;color:var(--muted);font-size:12px}input,select,textarea{width:100%;background:var(--code);color:var(--text);border:1px solid var(--line);border-radius:9px;padding:10px 11px;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 20%,transparent)}
.switch-line{grid-column:1/-1;display:flex;align-items:center;gap:9px;border-top:1px solid var(--line);padding-top:10px}.switch-line input{width:auto}.switch-line span{color:var(--text)}
.diagnosis-picker{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.diagnosis-picker button,.segmented button,.action-row button{border:1px solid var(--line);background:var(--surface2);color:var(--text);border-radius:9px;padding:9px 12px}.diagnosis-picker button:hover,.segmented button.selected{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 15%,var(--surface2))}
.workspace{border:1px solid var(--line);background:var(--surface);border-radius:15px;padding:18px;min-height:200px}.empty-state{text-align:center;color:var(--muted);padding:50px 18px}.workspace-head{display:flex;justify-content:space-between;gap:15px;align-items:flex-start;margin-bottom:16px}.workspace-head h2{margin:0}.workspace-head p{margin:4px 0;color:var(--muted)}.step-progress{font-size:12px;color:var(--accent2);white-space:nowrap}
.step-card{border:1px solid var(--line);background:var(--surface2);border-radius:13px;padding:15px}.step-card h3{margin:0 0 5px}.step-card>p{color:var(--muted);margin-top:0}.commands{display:grid;gap:9px;margin:14px 0}.cmd-card{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:11px}.cmd-top{display:flex;justify-content:space-between;gap:10px;align-items:center}.cmd-actions{display:flex;gap:6px}.cmd-actions button{border:1px solid var(--line);background:var(--surface2);color:var(--muted);border-radius:7px;padding:5px 8px}.cmd-card pre{margin:9px 0 6px;padding:10px;background:var(--code);border:1px solid var(--line);border-radius:8px;white-space:pre-wrap;word-break:break-word;overflow:auto}.cmd-card p{margin:0;color:var(--muted);font-size:12px}.badge{font-size:10px;font-weight:800;padding:4px 7px;border-radius:999px;color:white}.b-t1{background:var(--safe)}.b-root{background:var(--root)}.b-change{background:var(--warn)}.b-danger{background:var(--danger)}
.choices{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.choices button{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:9px;padding:9px 11px}.choices button:hover{border-color:var(--accent)}
.result-card{border:1px solid var(--line);background:var(--surface2);border-radius:13px;padding:18px}.result-card h3{margin-top:0}.result-card p{color:var(--muted)}.result-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}.result-actions button{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:9px;padding:9px 11px}.result-actions .primary{background:var(--accent);color:white;border-color:transparent}
.toolbar{display:flex;gap:10px;margin-bottom:16px}.toolbar input{flex:1}.toolbar select{width:190px}.ref-group{margin:24px 0}.ref-group h2{font-size:19px}.ref-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.ref-card{border:1px solid var(--line);background:var(--surface);border-radius:11px;padding:11px}.ref-card pre{white-space:pre-wrap;word-break:break-word;background:var(--code);border:1px solid var(--line);border-radius:8px;padding:9px}.ref-meta{display:flex;justify-content:space-between;gap:8px;align-items:center}.ref-card p{color:var(--muted);font-size:12px;margin:0}.ref-copy{border:0;background:transparent;color:var(--accent2)}
.segmented{display:flex;gap:6px;margin-bottom:14px}.log-table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden}.log-table th,.log-table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line)}.log-table th{color:var(--muted);font-size:11px;text-transform:uppercase}.log-table tr:last-child td{border-bottom:0}.log-table code{font-size:12px}
.esc-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.wide{grid-column:1/-1}.action-row{display:flex;gap:8px;margin:14px 0}.primary-btn{background:var(--accent)!important;color:white!important;border-color:transparent!important}.action-row button:disabled{opacity:.5;cursor:not-allowed}.output-block{background:var(--code);border:1px solid var(--line);border-radius:12px;padding:15px;white-space:pre-wrap;word-break:break-word;min-height:170px}
.callout{border:1px solid var(--line);background:var(--surface2);padding:14px;border-radius:12px;color:var(--muted);margin:12px 0}.callout strong{color:var(--text)}.callout.warn{border-color:color-mix(in srgb,var(--warn) 45%,var(--line))}.source-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.source-list article{border:1px solid var(--line);background:var(--surface);border-radius:11px;padding:13px}.source-list p{color:var(--muted);margin-bottom:0}
.toast{position:fixed;right:20px;bottom:20px;background:var(--text);color:var(--bg);border-radius:9px;padding:9px 13px;font-weight:800;opacity:0;transform:translateY(8px);pointer-events:none;transition:.18s;z-index:100}.toast.show{opacity:1;transform:none}
.no-match{padding:20px;border:1px dashed var(--line);border-radius:10px;color:var(--muted);text-align:center}
@media(max-width:1100px){.case-grid{grid-template-columns:repeat(2,1fr)}.ref-grid{grid-template-columns:1fr}.source-list{grid-template-columns:1fr}}
@media(max-width:800px){.mobile-only{display:inline-grid;place-items:center}.sidebar{transform:translateX(-102%);transition:.2s;box-shadow:var(--shadow)}.sidebar.open{transform:none}main{margin-left:0;padding:20px 14px 70px}.brand small{display:none}.case-grid,.esc-grid{grid-template-columns:1fr}.wide,.switch-line{grid-column:1}.toolbar{flex-direction:column}.toolbar select{width:100%}}