:root{color-scheme:light;--bg: #f6f7f9;--surface: #ffffff;--surface-2: #f9fafb;--text: #111827;--muted: #667085;--border: #e5e7eb;--primary: #0f766e;--primary-strong: #115e59;--danger: #dc2626;--warning: #d97706;--success: #15803d;--info: #2563eb;--radius: 8px;--shadow: 0 14px 35px rgb(15 23 42 / 8%);--focus: 0 0 0 3px rgb(20 184 166 / 20%)}*{box-sizing:border-box}body{margin:0;font-family:var(--font-sans);color:var(--text);background:var(--bg)}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.app-shell{min-height:100vh;display:grid;grid-template-columns:280px minmax(0,1fr)}.sidebar{background:#101828;color:#eef4ff;padding:18px 14px;position:sticky;top:0;height:100vh;overflow:auto}.brand{display:flex;align-items:center;gap:10px;padding:8px 10px 18px}.brand-mark{width:38px;height:38px;border-radius:var(--radius);display:grid;place-items:center;background:var(--primary);color:#fff;font-weight:800}.brand-mark 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