:root{--paper: #f4f2ec;--card: #fbfaf6;--ink: #1c1c1a;--rule: #d8d3c8;--muted: #7d7a72;--accent: #c0392b;--sidebar: 320px;color-scheme:light}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--paper);color:var(--ink);font:13px/1.45 Helvetica Neue,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}.app{display:grid;grid-template-columns:var(--sidebar) 1fr;height:100%}.sidebar{overflow-y:auto;border-right:1px solid var(--rule);background:var(--card);padding-bottom:40px}.brand{display:flex;align-items:baseline;justify-content:space-between;padding:18px 16px 14px;border-bottom:1px solid var(--rule)}.brand h1{margin:0;font-size:15px;font-weight:600;letter-spacing:.22em;text-transform:uppercase}.brand span{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}.panel{border-bottom:1px solid var(--rule)}.panel-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px 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