:root{color-scheme:light;font-family:Old Standard TT,Georgia,Times New Roman,serif;--ui-font: "IBM Plex Sans", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--bg: #f7f8fb;--card: #ffffff;--text: #14171f;--muted: #475467;--border: #e5e7eb;--accent: #1f3a8a;--in-stock-bg: #dcfce7;--in-stock-text: #166534;--out-stock-bg: #fee2e2;--out-stock-text: #991b1b;--unknown-bg: #e5e7eb;--unknown-text: #374151}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.groups-app{max-width:1240px;margin:0 auto;padding:1rem}.groups-header{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;margin-bottom:.75rem}.groups-header h1{margin:0;font-size:1.45rem}.groups-subtitle{margin:.2rem 0 0;font-family:var(--ui-font);color:var(--muted)}.back-link{font-family:var(--ui-font);color:var(--accent);text-decoration:none;border:1px solid var(--border);border-radius:.5rem;padding:.4rem .6rem;background:var(--card)}.back-link:hover{text-decoration:underline}.groups-status{font-family:var(--ui-font);margin:0 0 .75rem;color:var(--muted)}.groups-layout{display:grid;grid-template-columns:290px 1fr;gap:1rem}.groups-sidebar,.groups-content,.diagram-card,.parts-card{border:1px solid var(--border);border-radius:.75rem;background:var(--card)}.groups-sidebar{padding:.75rem;position:sticky;top:.75rem;height:fit-content}.groups-sidebar h2,.groups-content h2{margin:0 0 .65rem;font-size:1.05rem}.group-list{display:flex;flex-direction:column;gap:.4rem}.group-nav-link{display:block;font-family:var(--ui-font);border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:.5rem;padding:.45rem .55rem;text-align:left;text-decoration:none;cursor:pointer}.group-nav-link:hover{border-color:var(--accent)}.group-nav-link.is-active{background:color-mix(in srgb,var(--accent) 10%,#fff);border-color:var(--accent);color:#0f172a;font-weight:700}.group-nav-link.is-inactive{color:var(--muted);background:#f3f4f6;border-style:dashed;cursor:default}.groups-content{padding:.75rem}.diagram-card,.parts-card{padding:.65rem}.diagram-card{margin-bottom:.75rem}.diagram-toolbar{display:flex;justify-content:flex-end;margin-bottom:.35rem;font-family:var(--ui-font)}.diagram-toolbar a{color:var(--accent);text-decoration:none}.diagram-toolbar a:hover{text-decoration:underline}.diagram-wrap{display:flex;align-items:center;justify-content:center;min-height:220px;background:#fbfcff;border:1px solid var(--border);border-radius:.5rem;overflow:auto}#diagram-image{max-width:none;height:auto;display:block}.parts-card table{width:100%;border-collapse:collapse;font-family:var(--ui-font)}.parts-card th,.parts-card td{padding:.55rem .65rem;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}.parts-card th:nth-child(4),.parts-card td:nth-child(4){white-space:nowrap}.parts-card th{color:#000;background:#f9fafb;font-size:.85rem}.parts-card tbody tr:nth-child(2n){background:#fafbff}.parts-row{cursor:pointer}.parts-row.is-active{background:#eaf1ff!important;outline:2px solid color-mix(in srgb,var(--accent) 50%,#fff);outline-offset:-2px}.parts-card a{color:var(--accent);text-decoration:none;font-weight:600}.parts-card a:hover{text-decoration:underline}.no-original{color:var(--muted);font-style:italic}.badge{display:inline-block;padding:.2rem .55rem;border-radius:999px;font-size:.78rem;line-height:1.2}.badge-in_stock{background:var(--in-stock-bg);color:var(--in-stock-text)}.badge-out_of_stock{background:var(--out-stock-bg);color:var(--out-stock-text)}.badge-unknown{background:var(--unknown-bg);color:var(--unknown-text)}.empty{text-align:center;color:var(--muted)}button:focus-visible,input:focus-visible,a:focus-visible{outline:3px solid #0b5fff;outline-offset:2px}@media(max-width:980px){.groups-layout{grid-template-columns:1fr}.groups-sidebar{position:static}}