:root{color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#f8fafc;color:#17202a;--bg: #f8fafc;--surface: #ffffff;--surface-soft: #f1f5f9;--surface-raised: #ffffff;--line: #dbe3ec;--line-soft: #edf2f7;--muted: #64748b;--text: #17202a;--input: #ffffff;--blue: #2563eb;--green: #10b981;--amber: #f59e0b;--purple: #8b5cf6;--red: #ef4444;--cyan: #06b6d4;--nav: #10231f;--nav-soft: #183a32;--shadow: 0 16px 40px rgba(15, 23, 42, .08);--shadow-soft: 0 8px 24px rgba(15, 23, 42, .06)}:root[data-theme=dark]{color-scheme:dark;background:#0f172a;color:#e5e7eb;--bg: #0f172a;--surface: #111827;--surface-soft: #172033;--surface-raised: #182235;--line: #243244;--line-soft: #1f2b3d;--muted: #94a3b8;--text: #f8fafc;--input: #0f172a;--nav: #070d18;--nav-soft: #111827;--shadow: 0 16px 40px rgba(0, 0, 0, .35);--shadow-soft: 0 8px 24px rgba(0, 0, 0, .24)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--bg)}button,input,select{font:inherit}.app-shell{display:grid;grid-template-columns:268px minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;display:grid;align-content:space-between;min-height:100vh;padding:22px 16px;background:linear-gradient(180deg,var(--nav),var(--nav-soft));color:#fff}.brand{display:flex;gap:12px;align-items:center;padding:0 8px 28px}.brand-mark,.sidebar-user>span{display:grid;place-items:center;width:38px;height:38px;border-radius:8px;background:linear-gradient(135deg,var(--amber),#facc15);color:#111827;font-weight:900}.brand small,.sidebar-user small{display:block;color:#cbd5e1;margin-top:2px}.sidebar nav{display:grid;gap:7px}.sidebar button{position:relative;display:flex;align-items:center;gap:10px;width:100%;border:0;border-radius:8px;color:#dbe7e3;background:transparent;padding:11px 12px;text-align:left;cursor:pointer;transition:transform .18s ease,background 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