:root{--ink: #14171c;--ink-soft: #1e232b;--ink-line: #2a3038;--paper: #f7f6f3;--panel: #ffffff;--line: #e4e1da;--text: #1b1d22;--text-soft: #6b6f76;--accent: #2f8f5b;--accent-soft: #e6f2ea;--warn: #b8862b;--warn-soft: #f7eedb;--danger: #b23b3b;--danger-soft: #f8e9e9;--mono: "IBM Plex Mono", ui-monospace, monospace;--sans: "Inter", system-ui, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--sans);color:var(--text);background:var(--paper);-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.app-shell{display:grid;grid-template-columns:220px 1fr;height:100vh}.sidebar{background:var(--ink);color:#cfd3d9;padding:20px 14px;display:flex;flex-direction:column;gap:4px}.sidebar-brand{font-family:var(--mono);font-size:13px;letter-spacing:.04em;color:#fff;padding:0 10px 18px;border-bottom:1px 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