:root{--color-primario:#c0392b;--color-fondo:#f7f5f2;--color-borde:#e0dcd6;--color-texto:#2b2b2b;--radio:6px}*{box-sizing:border-box}body{background:var(--color-fondo);color:var(--color-texto);margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif}header{background:var(--color-primario);color:#fff;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;padding:16px 24px;display:flex}header h1{margin:0;font-size:1.4rem}.header-usuario{align-items:center;gap:12px;font-size:.9rem;display:flex}nav{border-bottom:1px solid var(--color-borde);background:#fff;gap:8px;padding:12px 24px 0;display:flex;overflow-x:auto}nav button{cursor:pointer;color:#555;background:0 0;border:none;border-bottom:3px solid #0000;padding:10px 16px;font-size:.95rem}nav button.activo{color:var(--color-primario);border-bottom-color:var(--color-primario);font-weight:600}main{max-width:1000px;margin:0 auto;padding:24px}.oculto{display:none!important}.tarjeta{border:1px solid var(--color-borde);border-radius:var(--radio);background:#fff;margin-bottom:20px;padding:16px}h2{margin-top:0;font-size:1.1rem}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--color-borde);padding:8px 10px;font-size:.92rem}th{color:#777;font-weight:600}input,textarea,select{border:1px solid var(--color-borde);border-radius:var(--radio);padding:8px 10px;font-family:inherit;font-size:.9rem}button.btn{background:var(--color-primario);color:#fff;border-radius:var(--radio);cursor:pointer;border:none;padding:8px 14px;font-size:.9rem}button.btn.secundario{color:var(--color-texto);background:#efe9e3}button.btn.peligro{background:#8e2e24}button.icono{cursor:pointer;color:#999;background:0 0;border:none;font-size:1rem}button.icono:hover{color:var(--color-primario)}.form-ingrediente{grid-template-columns:2fr 1fr 1fr auto;align-items:end;gap:10px;margin-bottom:16px;display:grid}.form-ingrediente label,.campo label{color:#777;margin-bottom:4px;font-size:.78rem;display:block}.layout-recetas{grid-template-columns:280px 1fr;align-items:start;gap:20px;display:grid}.lista-recetas{margin:0;padding:0;list-style:none}.lista-recetas li{border-radius:var(--radio);cursor:pointer;margin-bottom:4px;padding:10px 12px;font-size:.92rem}.lista-recetas li:hover{background:#f1ede8}.lista-recetas li.activa{background:var(--color-primario);color:#fff}.titulo-seccion-recetas{text-transform:uppercase;letter-spacing:.04em;color:#999;margin:16px 0 6px;font-size:.75rem}.titulo-seccion-recetas:first-of-type{margin-top:0}.campo{margin-bottom:14px}.campo input,.campo textarea{width:100%}.fila-ing-receta{grid-template-columns:1fr 2fr 1fr 1fr 1fr auto;align-items:center;gap:8px;margin-bottom:8px;display:grid}.fila-ing-receta select,.fila-ing-receta input{width:100%;min-width:0}.fila-ing-receta .valor-calculado{color:#555;white-space:nowrap;font-size:.88rem}.cabecera-filas{color:#999;grid-template-columns:1fr 2fr 1fr 1fr 1fr auto;gap:8px;margin-bottom:6px;font-size:.75rem;display:grid}.resumen-costo{border-top:2px solid var(--color-borde);justify-content:space-between;margin-top:10px;padding:10px 0;font-weight:600;display:flex}.grupo-menu{text-transform:uppercase;letter-spacing:.04em;color:#777;background:#f1ede8;font-size:.8rem;font-weight:600}.acciones{gap:8px;margin-top:16px;display:flex}.vacio{color:#999;text-align:center;padding:20px 0;font-size:.9rem}.mensaje-error{color:var(--color-primario);margin-top:8px;font-size:.85rem}.buscador{align-items:center;gap:10px;margin-bottom:14px;display:flex}.buscador input{flex:1}.modal-overlay{z-index:100;background:#0006;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-caja{border-radius:var(--radio);background:#fff;width:90%;max-width:420px;max-height:90vh;padding:20px;overflow-y:auto}.modal-caja h2{margin-top:0}@media (max-width:640px){main{padding:12px}header{padding:12px 16px}header h1{font-size:1.15rem}nav{padding:8px 12px 0}nav button{white-space:nowrap;padding:8px 10px;font-size:.85rem}.tarjeta{padding:12px;overflow-x:auto}.layout-recetas{grid-template-columns:1fr}.modal-caja{width:92%;max-height:85vh;padding:16px;overflow-y:auto}.buscador{flex-direction:column;align-items:stretch}table{min-width:480px}.cabecera-filas,.fila-ing-receta{min-width:540px}.acciones{flex-wrap:wrap}}