:root{--bg: #f4f6f8;--surface: #ffffff;--surface-2: #f8fafb;--border: #e2e8ef;--text: #16202a;--muted: #64748b;--brand: #075e54;--brand-light: #25d366;--accent: #0b74c4;--danger: #c62828;--warn: #b26a00;--ok: #17803d;--radius: 10px;--shadow: 0 1px 2px rgba(16, 32, 48, .06), 0 4px 12px rgba(16, 32, 48, .05);color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.5 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}a{color:var(--accent)}.shell{display:grid;grid-template-columns:232px 1fr;min-height:100vh}.sidebar{background:var(--brand);color:#e8f5f2;padding:18px 14px;display:flex;flex-direction:column;gap:4px}.sidebar .brand{font-size:15px;font-weight:700;color:#fff;padding:6px 10px 14px;letter-spacing:.2px}.sidebar .brand small{display:block;font-weight:400;font-size:11px;opacity:.7;letter-spacing:.3px}.sidebar nav{display:flex;flex-direction:column;gap:2px}.sidebar 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