:root{--ink: #16213e;--ink-soft: #4a5673;--paper: #eef2f6;--panel: #ffffff;--rule: #d3dbe5;--accent: #2454d6;--accent-tint: #e6ecf8;--ok: #17805f;--ok-tint: #e3f4ee;--bad: #b3261e;--bad-tint: #fbe9e7;--rail-text: #dfe6f5;--sans: "IBM Plex Sans", "Segoe UI", system-ui, Arial, sans-serif;--mono: "IBM Plex Mono", Consolas, "Courier New", monospace}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;background:var(--paper);color:var(--ink);font:400 15px/1.5 var(--sans)}h1,h2,h3,h4{margin:0;line-height:1.25}h2{font-size:26px;font-weight:600}h3{font-size:19px;font-weight:600}h4{font-size:15px;font-weight:600;margin:22px 0 8px}p{margin:0 0 8px}u{text-decoration-thickness:2px;text-underline-offset:3px}.ident{font-family:var(--mono);font-size:13.5px}.muted{color:var(--ink-soft)}.small{font-size:13px}.ok{color:var(--ok)}.bad{color:var(--bad)}button,input,select{font:inherit;color:inherit}button{background:var(--accent);color:#fff;border:1px solid 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