:root{--paper: #e9edf1;--paper-raised: #f6f8fa;--ink: #16283c;--ink-soft: #52697e;--wire: #c2ccd6;--amber: #b9741a;--signal: #1d6b58;--fault: #a2332c;--screen: #101d28;--screen-text: #cfe0ea;--display: "Bricolage Grotesque", system-ui, sans-serif;--body: "Literata", Georgia, serif;--mono: "JetBrains Mono", ui-monospace, monospace}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background-color:var(--paper);background-image:linear-gradient(var(--wire) 1px,transparent 1px),linear-gradient(90deg,var(--wire) 1px,transparent 1px);background-size:32px 32px;background-position:-1px -1px;color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.65}a{color:inherit}button{font:inherit;cursor:pointer}:focus-visible{outline:2px solid var(--amber);outline-offset:2px}.shell{display:grid;grid-template-columns:272px 1fr;min-height:100%}.rail{border-right:1px solid var(--wire);background:var(--paper-raised);padding:28px 22px 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