:root{font-family:Inter,system-ui,Arial,sans-serif;color-scheme:light;--bg-shell: #f3f4f6;--bg-topnav: #f5f6f8;--bg-sidenav: #f7f8fa;--bg-main: #ffffff;--panel: #ffffff;--border: #e5e7eb;--border-soft: #edf0f2;--muted: #6b7280;--text: #111827;--brand: #2563eb;--brand-dark: #1d4ed8;--nav-hover: rgba(0, 0, 0, .04);--nav-active-bg: #e8f0ff;--nav-active-text: #1d4ed8;--radius: 6px;--radius-sm: 4px;--shadow: none;--topbar-h: 56px;--sidebar-w: 280px;--pad: 20px;--gap: 12px;--page-max: 1260px;--table-header-bg: #f8fafc;--table-row-hover: #f9fafb;--table-cell-y: 8px;--table-cell-x: 12px;--control-bg: #ffffff;--control-border: #d1d5db;--control-focus: rgba(37, 99, 235, .14)}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg-shell);color:var(--text)}.small{font-size:12px;color:var(--muted);line-height:1.35}.container{max-width:none;margin:0;padding:0}.topbar{position:sticky;top:0;z-index:100}.nav{background:var(--bg-topnav);border-bottom:1px solid var(--border);margin:0;padding:10px 16px;display:flex;align-items:center;gap:12px}.brand{font-weight:800;color:var(--text);cursor:pointer;-webkit-user-select:none;user-select:none}.toplink,.nav a{color:var(--brand);text-decoration:none;font-size:14px}.toplink:hover,.nav a:hover{text-decoration:underline}.iconbtn{height:36px;width:36px;border-radius:var(--radius-sm);border:1px solid var(--border);background:#eef2f7;color:var(--text);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;padding:0}.iconbtn:hover{background:#e7ebf3}.shell{display:grid;grid-template-columns:var(--sidebar-w) 1fr;gap:0;height:calc(100vh - var(--topbar-h))}.sidebar{background:var(--bg-sidenav);border-right:1px solid var(--border);padding:12px;height:calc(100vh - var(--topbar-h));overflow-y:auto}.mainpane{min-width:0;padding:var(--pad);background:var(--bg-main);height:calc(100vh - var(--topbar-h));overflow:auto}@media (max-width: 960px){:root{--sidebar-w: 240px;--pad: 16px}}@media 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a.active{background:var(--nav-active-bg);color:var(--nav-active-text);font-weight:700}.nav-section{margin-top:6px}.nav-summary{width:100%;cursor:pointer;padding:10px;border-radius:var(--radius-sm);color:var(--text);font-size:14px;-webkit-user-select:none;user-select:none;background:transparent;border:none;text-align:left;display:block}.nav-summary:hover{background:var(--nav-hover)}.nav-children{display:flex;flex-direction:column;gap:4px;padding:6px 0 8px 10px}.nav-children a{padding:8px 10px;border-radius:var(--radius-sm);color:var(--text);font-size:14px}.nav-children a:hover{background:var(--nav-hover)}.nav-children a.active{background:var(--nav-active-bg);color:var(--nav-active-text);font-weight:700}.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}hr{border:none;border-top:1px solid var(--border)}input,select,textarea{padding:8px 10px;border-radius:var(--radius-sm);border:1px solid var(--control-border);background:var(--control-bg);color:var(--text);font-size:14px}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--control-focus)}button{padding:8px 12px;border-radius:var(--radius-sm);border:none;cursor:pointer;background:var(--brand);color:#fff;font-size:14px}button:hover{background:var(--brand-dark)}button.secondary{background:#f8fafc;color:var(--text);border:1px solid var(--border)}button.secondary:hover{background:#eef2f7}button:disabled{opacity:.6;cursor:not-allowed}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}.panel{background:transparent;border:none;padding:0;box-shadow:none}.page{max-width:var(--page-max);margin:0}.page-header{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;padding:6px 0 14px;border-bottom:1px solid var(--border);margin-bottom:16px}.page-title{margin:0 0 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var(--border);border-radius:var(--radius);box-shadow:none;padding:8px}.menu-right{left:auto;right:0;width:220px}.menu-title{font-size:12px;color:var(--muted);padding:6px 10px}.menu-item{width:100%;text-align:left;border:none;background:transparent;padding:10px;border-radius:var(--radius-sm);cursor:pointer;color:var(--text)}.menu-item:hover{background:var(--nav-hover)}.menu-item.muted{cursor:default;color:var(--muted)}.menu-item-title{font-weight:700}.menu-item-sub{font-size:12px;color:var(--muted);margin-top:2px}.menu-sep{height:1px;background:var(--border);margin:8px 0}.menu-item.danger{background:#ef4444;color:#fff;border-radius:var(--radius-sm)}.menu-item.danger:hover{background:#dc2626}.auth-shell{min-height:calc(100vh - var(--topbar-h));display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;padding:20px}.auth-card{width:360px;display:flex;flex-direction:column;gap:12px}.auth-brand{font-weight:800;font-size:18px}.auth-title{margin:4px 0 8px}.auth-forgot{font-size:12px;color:var(--muted);cursor:pointer}.auth-secondary{display:flex;gap:10px;font-size:14px}.auth-sep{color:var(--muted)}.auth-error{color:#991b1b;font-size:13px}