*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.admin-shell{display:flex;min-height:100vh}.admin-sidebar{width:220px;background:var(--panel);border-right:1px solid var(--border);padding:16px 0}.admin-sidebar h1{font-size:15px;margin:0 16px 12px;padding-bottom:8px;border-bottom:2px solid var(--secondary)}.admin-sidebar nav a{display:block;padding:8px 16px;color:var(--text)}.admin-sidebar nav a:hover{background:var(--bg);text-decoration:none}.admin-main{flex:1 1;padding:24px 32px;max-width:1100px}.admin-card{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:16px 20px;margin-bottom:20px}.admin-card h2{margin-top:0;font-size:16px}table{width:100%;border-collapse:collapse;background:var(--panel)}td,th{text-align:left;padding:8px 12px;border-bottom:1px solid var(--border);vertical-align:top}th{color:var(--muted)}label,th{font-weight:600}label{display:block;margin:12px 0 4px}input[type=email],input[type=password],input[type=text],select,textarea{width:100%;max-width:560px;padding:8px 10px;border:1px solid var(--border);border-radius:6px;font:inherit}textarea{min-height:110px}.btn,button{display:inline-block;background:var(--primary);color:#fff;border:0;border-radius:6px;padding:8px 14px;font:inherit;cursor:pointer}.btn:hover,button:hover{background:var(--primary-hover)}button:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:var(--panel);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg)}.btn-danger{background:var(--danger)}.error{color:var(--danger);background:color-mix(in srgb,var(--danger) 8%,white);border:1px solid color-mix(in srgb,var(--danger) 25%,white);border-radius:6px}.error,.success{padding:8px 12px}.success{color:var(--success);background:color-mix(in srgb,var(--success) 8%,white);border:1px solid color-mix(in srgb,var(--success) 25%,white);border-radius:6px}.muted{color:var(--muted)}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));grid-gap:16px;gap:16px}.stat{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:16px}.stat .stat-value{font-size:26px;font-weight:700}.stat .stat-label{color:var(--muted);font-size:13px}.permission-tree{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));grid-gap:8px;gap:8px;padding:8px 0}.permission-tree label{font-weight:400;margin:0}.form-actions{margin-top:16px;display:flex;gap:8px}.preset-tabs a{display:inline-block;padding:6px 14px;border:1px solid var(--border);border-radius:6px 6px 0 0;background:var(--panel);color:var(--text);margin-right:4px}.preset-tabs a.active{border-bottom-color:var(--panel);font-weight:600}