:root{--page-bg: #edf2f6;--surface: #ffffff;--surface-soft: #f8fbfd;--border: #d6e0e8;--border-strong: #c3d3df;--text: #132937;--muted: #5d7280;--accent: #177e9c;--accent-strong: #116781;--focus: #0b6d88;--ok: #0e9f6e;--warn: #d97706;--danger: #c24141;--shadow-sm: 0 1px 2px rgba(14, 30, 37, .06);--shadow-md: 0 6px 20px rgba(14, 30, 37, .08);--shadow-lg: 0 14px 30px rgba(14, 30, 37, .1)}.dashboard-shell{--left-pane-width: 220px}.dashboard-shell.is-left-collapsed{--left-pane-width: 72px}*{box-sizing:border-box}body{margin:0;background:var(--page-bg);color:var(--text);font-family:Manrope,Plus Jakarta Sans,Segoe UI,Helvetica Neue,Arial,sans-serif;line-height:1.35}.util-page{max-width:none;width:100%;margin:0;padding:8px 12px}.top-header-wrap{width:100%}.top-header-inner{padding-bottom:0}.top-header-grid{display:block;width:100%}.layout-shell{display:grid;grid-template-columns:var(--left-pane-width) 1fr;gap:12px;align-items:start;min-height:calc(100vh - 180px)}.left-pane{padding:12px;height:fit-content;position:sticky;top:10px;background:linear-gradient(180deg,#f9fcfe,#f5f9fc)}.left-pane h2{margin:0 0 10px;font-size:14px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.04em}.left-pane-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.left-pane-mini{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}.collapse-btn{border:1px solid var(--border);border-radius:8px;background:#fff;color:#2a4f5f;width:28px;height:28px;cursor:pointer;transition:all .18s ease}.collapse-btn:hover{border-color:var(--accent);color:var(--accent-strong);transform:translateY(-1px)}.left-nav{display:grid;gap:8px}.left-tab{border:1px solid var(--border);border-radius:10px;height:38px;background:#f4f8fb;color:#2a4f5f;font-size:13px;text-align:left;padding:0 11px;cursor:pointer;transition:all .18s 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