:root{--bg:#f6f7fb;--panel:#ffffff;--text:#172033;--muted:#70798a;--line:#e7eaf0;--accent:#2563eb;--accent-dark:#1d4ed8;--soft:#eef4ff;--success:#159447;--sidebar:#111827;--danger:#b42318}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:inherit}h1,h2,p{margin-top:0}.appShell{min-height:100vh;display:grid;grid-template-columns:240px 1fr}.sideNav{position:-webkit-sticky;position:sticky;top:0;height:100vh;background:var(--sidebar);color:#fff;padding:22px 16px;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:11px;margin-bottom:28px}.logo{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-weight:900;background:#3b82f6}.brand strong{display:block;font-size:16px}.brand span{display:block;color:#94a3b8;font-size:12px;margin-top:2px}.sideNav 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