:root{color-scheme:dark;--bg:#17181c;--side:#232429;--stage:#1d1e22;--panel:#2b2c31;--panel2:#313238;--line:#3a3c44;--line2:#454852;--text:#f4f7fb;--muted:#8e99aa;--dim:#667284;--blue:#55b4ff;--green:#42d79a;--amber:#f7c45e;--violet:#a98bff;--danger:#ff8178;--shadow:0 16px 36px rgba(0,0,0,.18)}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font:14px/1.45 Inter,Segoe UI,Arial,sans-serif}button,input{font:inherit}.shell{min-height:100vh;display:grid;grid-template-columns:244px minmax(0,1fr)}.sidebar{position:sticky;top:0;height:100vh;background:var(--side);border-right:1px solid rgba(255,255,255,.06);padding:18px 13px 14px;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:11px;padding:4px 10px 24px}.brand-mark{width:39px;height:39px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(145deg,#238ee4,#0b4d85);box-shadow:inset 0 1px rgba(255,255,255,.25),0 7px 18px 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