:root{color-scheme:light;--bg:#f5f7fb;--panel:#ffffff;--ink:#172033;--muted:#61708a;--line:#d8e0ec;--accent:#145df2;--accent-soft:#e8f0ff;--good:#197a4a;--bad:#a43636}*{box-sizing:border-box}body,html{margin:0;padding:0;background:radial-gradient(circle at top,#ffffff 0,var(--bg) 45%,#edf2fb 100%);color:var(--ink);font-family:Georgia,Iowan Old Style,Palatino Linotype,serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.shell{min-height:100vh;padding:32px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;box-shadow:0 18px 50px rgba(15,40,88,.08)}.spin{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}