/* NORMALIZACIÓN CAD — guía del proyectista. Usa las variables de tema de styles.css (oscuro / claro). */
.nz-hero{display:flex;gap:16px;align-items:flex-end;flex-wrap:wrap;margin-bottom:14px}
.nz-hero p{margin:0;max-width:760px}
.nz-nav{position:sticky;top:0;z-index:5;display:flex;gap:6px;flex-wrap:wrap;padding:8px 0;margin-bottom:12px;background:var(--bg)}
.nz-nav button{border:1px solid var(--line);background:var(--panel);color:var(--muted);border-radius:999px;padding:5px 12px;font-size:12px;font-weight:600;cursor:pointer}
.nz-nav button:hover{color:var(--txt);border-color:var(--accent)}
@media (max-width:780px){.nz-nav{position:static}}  /* en angosto la barra lateral de la app pasa arriba y tapaba el nav fijo */
.nz-sec{scroll-margin-top:58px}
.nz-sec h2{display:flex;align-items:center;gap:10px}
.nz-num{font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--on-accent);background:var(--accent);border-radius:6px;padding:1px 8px}
.nz-two{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:18px;align-items:center}
@media (max-width:980px){.nz-two{grid-template-columns:1fr}}
.nz-lee{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:10px}
.nz-lee li{display:grid;grid-template-columns:34px 1fr;gap:10px;align-items:start}
.nz-lee .k{font-family:var(--font-num);font-weight:700;font-size:20px;color:var(--accent);line-height:1}
.nz-lee b{display:block}
/* lienzo tipo espacio modelo de AutoCAD: oscuro en los dos temas, así los colores de capa se leen igual que en CAD */
.nz-cad{background:#0b1220;border:1px solid #24324a;border-radius:10px;padding:8px;color:#cbd5e1}
.nz-cad svg{display:block;width:100%;height:auto}
.nz-cad text{font-family:'Inter','Segoe UI',sans-serif;fill:#cbd5e1}
.nz-cad .t-mut{fill:#7c8aa0}
.nz-cad .t-ok{fill:#4ade80}.nz-cad .t-bad{fill:#f87171}.nz-cad .t-acc{fill:#38bdf8}
.nz-rules{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px}
.nz-rule{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:12px 14px}
.nz-rule .n{font-family:var(--font-num);font-weight:700;color:var(--accent);font-size:18px}
.nz-rule b{display:block;margin:2px 0 4px}
.nz-rule p{margin:0;font-size:12.5px;color:var(--muted)}
.nz-tabs{display:flex;gap:6px;flex-wrap:wrap;margin:4px 0 12px}
.nz-tabs button{border:1px solid var(--line);background:var(--panel2);color:var(--txt);border-radius:8px;padding:7px 14px;font-weight:700;cursor:pointer;font-size:13px}
.nz-tabs button.on{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.nz-tabs button small{font-weight:500;opacity:.8;margin-left:6px}
table.nz-capas{width:100%;border-collapse:collapse;font-size:13px}
table.nz-capas th{text-align:left;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.04em;padding:6px 8px;border-bottom:1px solid var(--line)}
table.nz-capas td{padding:7px 8px;border-bottom:1px dashed var(--line);vertical-align:middle}
table.nz-capas td.sw{width:120px}
.nz-sw{display:block;background:#0b1220;border-radius:6px;height:26px;width:112px}
.nz-capa{font-family:ui-monospace,Consolas,monospace;font-weight:700;font-size:12.5px;white-space:nowrap}
.nz-tipo{display:inline-block;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;border-radius:5px;padding:1px 6px;border:1px solid var(--line);color:var(--muted)}
.nz-tipo.cano,.nz-tipo.bandeja{color:var(--accent);border-color:var(--accent)}
.nz-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px}
.nz-blk{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:10px;display:flex;flex-direction:column;gap:6px}
.nz-blk .pv{background:#0b1220;border-radius:8px;color:#f87171;display:grid;place-items:center;padding:6px}
.nz-blk .pv svg{width:96px;height:96px;display:block}
.nz-blk .nm{font-weight:700;font-size:13px;line-height:1.2}
.nz-blk .ds{font-size:12px;color:var(--muted);flex:1}
.nz-blk .cp{font-family:ui-monospace,Consolas,monospace;font-size:11px;color:var(--muted)}
.nz-blk a.btn{align-self:flex-start}
.nz-pairs{display:grid;grid-template-columns:repeat(auto-fill,minmax(420px,1fr));gap:12px}
.nz-pair{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:12px}
.nz-pair h3{font-size:14px;margin:0 0 8px}
.nz-pair p{margin:8px 0 0;font-size:12.5px;color:var(--muted)}
.nz-ok{color:var(--eco);font-weight:700}.nz-bad{color:var(--dem);font-weight:700}
.nz-check{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:6px 18px}
.nz-check li{padding-left:24px;position:relative;font-size:13px}
.nz-check li:before{content:'';position:absolute;left:2px;top:3px;width:12px;height:12px;border:2px solid var(--accent);border-radius:3px}
.nz-dl{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:10px}
.nz-dl .it{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:12px 14px;display:flex;gap:12px;align-items:center}
.nz-dl .it div{flex:1;min-width:0}
.nz-dl .it b{display:block}
.nz-dl .it span{font-size:12px;color:var(--muted)}
.nz-note{border-left:3px solid var(--warn);background:var(--panel2);border-radius:0 8px 8px 0;padding:8px 12px;font-size:12.5px;margin-top:10px}