:root{color-scheme:light;--bg:#f5f7f8;--panel:#ffffff;--panel-soft:#eef3f4;--text:#172022;--muted:#5d686d;--line:#dbe3e5;--accent:#0f7b6c;--accent-strong:#075f54;--warm:#db7f35;--rose:#b84b62;--shadow:0 18px 48px rgba(24,43,48,0.1)}*{box-sizing:border-box}body,html{min-height:100%}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}.shell{min-height:100vh;display:grid;grid-template-rows:auto 1fr}.topbar{justify-content:space-between;gap:24px;padding:18px 28px;border-bottom:1px solid 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