:root{--bg: #f5f6f1;--surface: #fbfcf8;--paper: #ffffff;--ink: #18221c;--muted: #6b766e;--line: #dce2dc;--accent: #16764e;--accent-soft: #e4efe7;--warning: #885d2f;color-scheme:light;font-family:Avenir Next,Segoe UI,ui-sans-serif,system-ui,sans-serif}html.dark{--bg: #101a14;--surface: #17251d;--paper: #1b2c22;--ink: #f3f6f0;--muted: #b4c1b8;--line: #3f5747;--accent: #a8dfb9;--accent-soft: #243f2e;--warning: #e1b77e;color-scheme:dark}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);line-height:1.35;transition:background .18s ease,color .18s ease}button,input,select{font:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button{color:inherit;line-height:1.35}.shell{max-width:1220px;margin:auto;padding:24px 34px 80px}.topbar{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid 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