:root{--bg:#f5f7fb;--panel:#ffffff;--ink:#111827;--muted:#6b7280;--accent:#2563eb;--accent-2:#0ea5a4;--border:#d1d5db;--soft:#eef2f7;--shadow:0 6px 18px rgba(0,0,0,.08);--radius:12px;--radius-sm:8px;--gap:10px;}
*{box-sizing:border-box}
body{margin:0;padding:0;background:linear-gradient(180deg,var(--bg),#ffffff);color:var(--ink);font-family:'DM Sans',system-ui,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{font-family:'DM Serif Display',Georgia,serif}

/* ── BARRA SUPERIOR ── */
#tituloinicial{position:sticky;top:0;z-index:10;background:var(--panel);border-bottom:1px solid var(--border);box-shadow:0 2px 10px rgba(0,0,0,.04);display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 18px;}
#tituloinicial h1{font-size:18px;font-weight:800;letter-spacing:.2px;line-height:1.2;flex:1;display:flex;justify-content:center;text-align:center;}
#tituloinicial h1.titulo-principal-calc{flex-direction:column;align-items:center;gap:3px;}
.calc-limit-notice{display:block;font-size:11px;font-weight:700;color:var(--muted);letter-spacing:0;text-transform:none;}
#controlesTop{display:flex;align-items:center;gap:18px}
.abreVentana{font-size:14px;font-weight:700;padding:8px 10px;border-radius:var(--radius-sm);background:var(--soft);border:1px solid var(--border);}
#btnHome{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;width:46px;height:50px;background:var(--soft);border:1px solid var(--border);border-radius:10px;gap:2px;transition:.15s transform,.15s background;}
#btnHome:hover{transform:translateY(-1px);background:#e9eef9}
#btnHome svg{display:block;fill:var(--ink)}
#btnHome span{font-size:9px;line-height:9px;color:var(--ink);font-weight:800;letter-spacing:.5px}

/* ── CONTENEDOR PRINCIPAL ── */
:root{--footer-h:74px;}
#contenedor{height:calc(100vh - 76px - var(--footer-h));width:100%;padding:var(--gap) var(--gap) calc(var(--gap) + var(--footer-h));display:flex;flex-direction:column;gap:var(--gap);}

/* ── FILA SUPERIOR: caja1 ── */
#caja1{display:flex;flex-direction:column;gap:6px;width:100%;min-height:0;flex:0 0 auto;}

/* ── PANEL IZQUIERDO ── */
#caja11{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:8px 10px;flex:0 0 auto;min-width:0;display:flex;flex-direction:row;align-items:stretch;gap:var(--gap);}
#caja111{display:flex;gap:var(--gap);align-items:stretch;flex:0 0 auto;min-width:420px;}
#caja1111{width:190px;min-width:170px;background:linear-gradient(135deg,#0f172a,#1f2937);color:#fff;border-radius:var(--radius-sm);border:1px solid #0b1020;padding:10px;display:flex;flex-direction:column;justify-content:space-between;}
#caja11111{display:flex;justify-content:center;align-items:center;text-align:center;font-size:13px;font-weight:800;letter-spacing:.5px;opacity:.95;line-height:1.3;}
#caja11112{margin-top:8px;font-size:11px;font-weight:700;color:#dbeafe;line-height:1.3;min-height:22px;}
#caja1112{flex:1;background:var(--soft);border:1px dashed var(--border);border-radius:var(--radius-sm);display:flex;flex-direction:column;justify-content:center;align-items:center;padding:8px 10px;min-width:0;gap:8px;}
.dim-fila{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:center;}
.dim-campo{display:flex;flex-direction:column;align-items:center;gap:3px;}
.dim-campo span{font-size:11px;font-weight:700;color:var(--ink);}
.dim-campo small{font-size:10px;color:var(--muted);}
#caja112{flex:1;overflow:hidden;display:flex;flex-direction:column;justify-content:center;gap:6px;min-width:0;}
.sistema-inline{display:flex;align-items:center;gap:0px;overflow-x:auto;flex-wrap:nowrap;}
.sistema-inline>p{margin:0!important;flex-shrink:0;}
.sistema-inline>table{flex-shrink:0;}
.confirmados-fila{display:flex;align-items:flex-start;gap:8px;width:100%;overflow-x:auto;overflow-y:hidden;}
.conf-blq{flex:1;min-width:0;overflow:hidden;}
.conf-sistema{flex:.65 1 180px;max-width:28%;}
.conf-matriz{flex:1.25 1 240px;}
.conf-ampliada{flex:1.35 1 260px;}
.conf-vsep{width:1px;background:var(--border);align-self:stretch;flex-shrink:0;margin-top:14px;}
.mat-bloque{display:flex;flex-direction:column;gap:3px;flex-shrink:0;}
.mat-bloque-titulo{font-size:10px;font-weight:800;letter-spacing:.5px;text-transform:uppercase;color:var(--muted);}
.mat-bloque-contenido{display:flex;align-items:center;overflow:hidden;}
.confirmados-fila .katex{font-size:14px!important;}
.conf-rangos{display:flex;align-items:center;gap:4px;flex-wrap:wrap;margin-top:3px;max-width:100%;}
.conf-rango-badge{display:inline-flex;align-items:center;max-width:100%;overflow-x:auto;padding:2px 7px;border-radius:999px;background:#eff6ff;color:#1d4ed8;border:1px solid #bfdbfe;font-size:10px;font-weight:800;white-space:nowrap;}
.conf-rango-badge.especial{background:#fff7ed;color:#c2410c;border-color:#fed7aa;}
.conf-rango-badge .katex{font-size:11px!important;}

/* ── PANEL DERECHO ── */
#caja12{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:0 2px 8px rgba(0,0,0,.04);padding:6px 10px;flex:0 0 auto;min-width:0;display:flex;align-items:center;gap:10px;overflow:hidden;min-height:34px;}
#pasoIndicadorDer{display:none!important;}
.paso-ind-item{display:flex;flex-direction:column;align-items:center;gap:3px;cursor:default;flex:1;min-width:44px;}
.paso-num{width:22px;height:22px;border-radius:50%;background:#e5e7eb;border:2px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:900;color:var(--muted);transition:.2s all;}
.paso-txt{font-size:9px;font-weight:700;color:var(--muted);text-align:center;line-height:1.2;letter-spacing:.2px;text-transform:uppercase;}
.paso-sep{color:#c4c9d4;font-size:14px;font-weight:700;align-self:center;margin-bottom:14px;}
.paso-ind-item.activo .paso-num{background:var(--accent);border-color:var(--accent);color:#fff;}
.paso-ind-item.activo .paso-txt{color:var(--accent);}
.paso-ind-item.completado .paso-num{background:#16a34a;border-color:#16a34a;color:#fff;}
.paso-ind-item.completado .paso-txt{color:#16a34a;}
#refContenido{flex:1;display:flex;align-items:center;gap:8px;overflow-x:auto;overflow-y:hidden;min-width:0;}
.ref-bloque{display:flex;align-items:center;gap:8px;min-width:0;}
.ref-mat{overflow-x:auto;padding:6px 0;display:flex;justify-content:center;align-items:center;}
.ref-nota{font-size:11px;color:var(--muted);padding:4px 8px;background:var(--soft);border-radius:6px;border:1px solid var(--border);line-height:1.25;white-space:nowrap;flex:0 0 auto;}
.ref-rangos{display:flex;align-items:center;gap:6px;flex:0 0 auto;}
.ref-rango-badge{padding:4px 12px;border-radius:999px;font-size:12px;font-weight:800;background:var(--accent);color:#fff;}
.ref-vacia{display:flex;align-items:center;justify-content:min-height:100px;color:var(--muted);font-size:13px;font-style:italic;}
.confirmados-caso{flex:1.25 1 270px;min-width:250px;display:flex;flex-direction:column;gap:4px;padding:5px 8px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--soft);overflow:hidden;}
.confirmados-caso-titulo{font-size:10px;font-weight:900;letter-spacing:.45px;text-transform:uppercase;color:var(--muted);white-space:nowrap;}
.confirmados-caso .form-seccion{display:flex;flex-direction:column;gap:3px;padding:0;min-width:0;}
.confirmados-caso-row{display:flex;align-items:center;gap:5px;margin-bottom:0;flex-wrap:nowrap;}
.confirmados-caso-row label{font-size:11px;font-weight:800;color:var(--ink);white-space:nowrap;}
.confirmados-caso-row input{height:24px;}
.confirmados-caso-ayuda{font-size:10px;color:var(--muted);line-height:1.2;white-space:normal;}
.confirmados-caso .form-msg{min-height:13px;margin-top:0;font-size:10px;line-height:1.2;}

/* ── ESPACIO DE TRABAJO ── */
#caja2borde{background:transparent;flex:1;min-height:200px;display:block;overflow:hidden;}
#caja2{height:100%;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:10px;display:flex;flex-direction:column;overflow:hidden;}
h4{font-size:12px;font-weight:900;color:var(--muted);letter-spacing:.6px;text-transform:uppercase;margin:0 0 6px;display:block;flex-shrink:0;}
#historial{flex:1;overflow-y:auto;padding:2px 4px;display:grid;grid-template-columns:1fr 1fr;gap:8px;align-content:start;}
#historial.historial-auto{overflow:hidden;grid-template-rows:auto auto 1fr;align-content:stretch;min-height:0;}
#historial.historial-auto>.hist-auto-casos-resumen{grid-column:1/-1;}
.hist-casos-scroll{grid-column:1/-1;min-height:0;overflow-y:auto;overflow-x:hidden;display:grid;grid-template-columns:1fr;gap:8px;align-content:start;padding-right:4px;}
.hist-casos-scroll .hist-caso-card{grid-column:1/-1;}

/* ── TARJETAS DEL HISTORIAL ── */
.hist-entrada{background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 12px;}
.hist-etiqueta{font-size:10px;font-weight:800;letter-spacing:.6px;text-transform:uppercase;color:var(--muted);margin-bottom:6px;}
.hist-valor{display:inline-flex;align-items:center;margin:0 8px 0 0;overflow-x:visible;white-space:nowrap;flex:0 0 auto;}
.hist-info{font-size:11px;color:var(--muted);margin:5px 0 2px;}
.hist-info strong{color:var(--ink);}
.hist-maxord{color:var(--accent);font-weight:700;}
.hist-vered{font-size:11px;font-weight:800;margin-top:5px;padding:3px 8px;border-radius:5px;display:inline-block;}
.hist-nulo .hist-vered{background:#fef2f2;color:#dc2626;border:1px solid #fecaca;}
.hist-nonulo .hist-vered{background:#f0fdf4;color:#16a34a;border:1px solid #86efac;}
.hist-rango-conf{background:linear-gradient(135deg,#f0fdf4,#dcfce7)!important;border-color:#86efac!important;display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.hist-rango-conf .hist-etiqueta{margin-bottom:0;min-width:150px;}
.hist-rango-conf.hist-colapsada{padding:6px 10px;}
.hist-colapsable-cuerpo[hidden]{display:none!important;}
.hist-toggle-detalle{padding:3px 8px;border-radius:999px;font-size:10px;line-height:1;background:#fff;border-color:#bfdbfe;color:#1d4ed8;flex:0 0 auto;}
.hist-auto-resumen{padding:6px 10px;}
.hist-badge-rango{font-size:15px;margin-top:0;overflow-x:auto;}
.hist-rango-linea{display:flex;align-items:center;gap:10px;flex:0 0 100%;width:100%;min-width:0;overflow-x:auto;}
.hist-rango-linea .hist-badge-rango{flex:0 0 auto;}
.hist-rango-linea .hist-menor-ejemplo{flex:0 1 auto;}
.hist-menor-ejemplo{display:inline-flex;align-items:center;max-width:100%;overflow-x:auto;padding:3px 8px;border-radius:8px;background:#fff;border:1px solid #86efac;color:#111827;font-size:12px;font-weight:800;white-space:nowrap;}
.hist-menor-ejemplo.especial{border-color:#fed7aa;color:#c2410c;}
.hist-menor-ejemplo .katex{font-size:14px!important;white-space:nowrap;color:#111827!important;font-weight:700;}
.hist-discusion{background:linear-gradient(135deg,#f0f7ff,#e0f2fe)!important;border-color:#bfdbfe!important;display:flex;align-items:center;gap:10px;flex-wrap:nowrap;overflow-x:auto;}
.hist-discusion .hist-etiqueta{margin-bottom:0;flex:0 0 auto;}
.hist-disc-vals{margin:0;overflow-x:visible;white-space:nowrap;flex:0 0 auto;}
.hist-disc-conclu{margin-top:0;padding:8px 12px;border-radius:8px;font-size:12px;overflow-x:visible;white-space:nowrap;flex:0 0 auto;}
.hist-tipo-incompatible{background:#fef2f2;border:1px solid #fecaca;color:#dc2626;}
.hist-tipo-cd{background:#f0fdf4;border:1px solid #86efac;color:#16a34a;}
.hist-tipo-ci{background:#eff6ff;border:1px solid #bfdbfe;color:#2563eb;}
.hist-solucion{background:linear-gradient(135deg,#fafafa,#f1f5f9)!important;display:flex;align-items:center;gap:10px;flex-wrap:nowrap;overflow-x:auto;}
.hist-solucion .hist-etiqueta{margin-bottom:0;flex:0 0 auto;}
.hist-solucion .hist-badge-rango{flex:0 0 auto;white-space:nowrap;}
.hist-sol-cuerpo{margin-top:8px;overflow-x:auto;}
.hist-caso-card{align-items:flex-start;flex-direction:column;gap:8px;flex-wrap:nowrap;overflow-x:visible;grid-column:span 2;}
.hist-caso-top{display:flex;align-items:center;gap:22px;flex-wrap:nowrap;width:100%;overflow-x:auto;}
.hist-caso-card .hist-caso-titulo{text-transform:none;letter-spacing:0;font-size:11px;}
.hist-caso-card .hist-disc-vals{white-space:normal;max-width:100%;overflow-x:visible;}
.hist-caso-card .hist-valor,.hist-caso-card .hist-badge-rango{display:block;white-space:normal;overflow-x:visible;max-width:100%;margin:2px 0;}
.hist-caso-card .hist-sol-multilinea{padding:8px 10px;line-height:1.6;}
.hist-sol-linea{white-space:nowrap!important;overflow-x:visible!important;}
.hist-caso-card .katex{white-space:normal;}
.caso-opciones{display:flex;align-items:center;gap:8px;flex-wrap:nowrap;margin:0;}
.caso-opcion{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:800;white-space:nowrap;padding:4px 9px;border:1px solid #bfdbfe;border-radius:999px;background:#fff;color:#1d4ed8;line-height:1;}
.caso-opcion:has(input:checked){background:#eff6ff;border-color:#60a5fa;color:#1e40af;}
.caso-opcion.auto.seleccionado{background:#eff6ff;border-color:#60a5fa;color:#1e40af;box-shadow:0 0 0 2px rgba(96,165,250,.18) inset;}
.hist-caso-top .hist-disc-conclu{margin-left:12px;flex:0 0 auto;padding:5px 12px;}
.hist-free-note{margin-left:14px;flex:0 0 auto;white-space:nowrap;font-size:12px;font-weight:800;color:#1d4ed8;}
.hist-det-note{margin-left:14px;flex:0 0 auto;white-space:nowrap;font-size:12px;font-weight:800;color:#1d4ed8;overflow-x:auto;max-width:46vw;}
.hist-det-note .katex{white-space:nowrap;}
.hist-sol-row{display:flex;align-items:center;gap:28px;flex-wrap:nowrap;overflow-x:auto;width:100%;padding-top:8px;}
.hist-sol-row .hist-valor{flex:0 0 auto;white-space:nowrap;max-width:none;margin:0;}
.hist-sol-row .katex{white-space:nowrap;}
.ref-nota .confirmados-caso-titulo{text-transform:none;letter-spacing:0;}

/* ── TARJETA ACTIVA ── */
.hist-activa{border:2px solid var(--accent)!important;background:linear-gradient(135deg,#f0f7ff,#fff)!important;grid-column:span 1;}
.hist-activa .hist-etiqueta{color:var(--accent);}
.hist-selector-caso{display:flex;align-items:center;gap:10px;flex-wrap:nowrap;overflow-x:auto;}
.hist-selector-caso .hist-etiqueta{margin-bottom:0;flex:0 0 auto;}
.hist-selector-caso .ref-nota{background:#fff;border-style:dashed;}
.hist-selector-caso .form-seccion{display:flex;align-items:center;gap:8px;flex:0 0 auto;padding:0;}
.hist-selector-caso .form-row{margin-bottom:0;flex-wrap:nowrap;}
.hist-selector-caso .form-msg{margin-top:0;min-height:0;white-space:nowrap;flex:0 0 auto;}
.form-res-area{display:flex;flex-direction:row;flex-wrap:nowrap;gap:6px;margin-bottom:6px;overflow-x:auto;}
.form-res-area .form-menor-blq{flex:1 1 300px;}
.form-menor-blq{padding:6px 8px;border-radius:6px;border-left:3px solid;display:flex;align-items:center;gap:8px;flex-wrap:nowrap;min-width:0;}
.form-menor-nulo{background:#fef2f2;border-color:#fca5a5;}
.form-menor-nonulo{background:#f0fdf4;border-color:#86efac;}
.form-menor-simb{background:#fffbeb;border-color:#fcd34d;}
.form-menor-hdr{font-size:10px;font-weight:800;letter-spacing:.4px;text-transform:uppercase;color:var(--muted);margin-bottom:0;white-space:nowrap;flex:0 0 auto;}
.form-menor-val{overflow-x:auto;margin-bottom:0;min-width:0;flex:0 1 auto;}
.form-menor-val .katex{font-size:14px!important;}
.form-menor-inf{font-size:11px;font-weight:700;color:var(--muted);white-space:nowrap;flex:0 0 auto;}
.form-menor-nonulo .form-menor-inf{color:#15803d;}
.form-menor-nulo .form-menor-inf{color:#dc2626;}
.form-menor-simb .form-menor-inf{color:#92400e;}

/* ── RAÍCES (valores críticos) ── */
.det-raices{font-size:11px;font-weight:700;color:#92400e;margin-top:0;overflow-x:auto;white-space:nowrap;flex:0 0 auto;}
.caso-badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:10px;font-weight:800;margin:2px 2px 0 0;background:#fef3c7;color:#92400e;border:1px solid #fcd34d;}
.caso-badge.general{background:#eff6ff;color:#1d4ed8;border-color:#bfdbfe;}
.caso-badge.especial{background:#fff7ed;color:#c2410c;border-color:#fed7aa;}

/* ── BOTONES ── */
.btn-auto{width:auto;max-width:100%;margin:4px 0 8px;padding:7px 10px;background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;border:none;border-radius:8px;font-size:12px;font-weight:800;cursor:pointer;letter-spacing:.3px;white-space:nowrap;transition:.15s transform,.15s background;}
.btn-auto-cabecera{margin:4px 0 0 auto;flex:0 0 auto;align-self:flex-end;}
.btn-auto:hover{transform:translateY(-1px);background:linear-gradient(135deg,#fbbf24,#f59e0b);}
.btn-auto:active{transform:translateY(0);}
.form-toggle{display:flex;gap:4px;margin-bottom:8px;}
.form-toggle-btn{flex:1;font-size:11px;font-weight:800;padding:5px 4px;border-radius:6px;background:var(--soft);border:1px solid var(--border);cursor:pointer;transition:.12s background,.12s color,.12s border-color;}
.form-toggle-btn.activo{background:var(--accent);color:#fff;border-color:var(--accent);}
.form-toggle-btn:not(.activo):hover{background:#e9eef9;}
.form-seccion{padding:4px 0;}
.form-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-bottom:4px;}
.form-row label{font-size:12px;font-weight:700;color:var(--ink);}
.form-row small{font-size:10px;color:var(--muted);}
.form-msg{font-size:12px;font-weight:800;margin-top:6px;min-height:18px;line-height:1.4;}
.form-msg .ok{color:#16a34a;}
.form-msg .err{color:#dc2626;}
.form-msg .cierto{color:#16a34a;font-size:14px;letter-spacing:.5px;}
.form-msg .falso{color:#dc2626;font-size:14px;letter-spacing:.5px;}
.form-picker-row{display:flex;align-items:center;gap:5px;flex-wrap:wrap;margin-bottom:5px;}
.form-picker-label{font-size:11px;font-weight:700;color:var(--muted);min-width:38px;}
.form-picker-btn{width:26px;height:26px;border-radius:6px;border:1.5px solid var(--border);background:var(--soft);font-size:11px;font-weight:700;cursor:pointer;transition:.1s background,.1s color,.1s border-color;color:var(--ink);padding:0;line-height:26px;text-align:center;}
.form-picker-btn.sel{background:var(--accent);color:#fff;border-color:var(--accent);}
.form-picker-btn:hover:not(.sel){background:#e9eef9;}
.form-picker-hint{font-size:11px;color:var(--muted);margin-top:4px;min-height:16px;font-weight:600;}
.param-chip{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;background:#eff6ff;border:1px solid #bfdbfe;color:#1d4ed8;font-size:11px;font-weight:800;letter-spacing:.03em;}

/* ── TABLAS E INPUTS ── */
table{table-layout:auto;border-spacing:4px;font-size:12px;margin:0;padding:0}
td{padding:0 3px;text-align:right}
input{width:46px;padding:4px 6px;border:1px solid var(--border);border-radius:6px;background:#fff;font-weight:700;color:var(--ink);outline:none;transition:border-color .12s,box-shadow .12s;}
input[type="radio"],input[type="checkbox"]{width:auto;padding:0;box-shadow:none;}
input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
label{margin-right:4px;font-size:12px;font-weight:700;}
button{appearance:none;border:1px solid var(--border);background:var(--soft);padding:7px 10px;border-radius:8px;font-weight:800;font-size:12px;cursor:pointer;transition:.12s transform,.12s background,.12s border-color;}
button:hover{transform:translateY(-1px);background:#e9eef9;border-color:#c7d2fe}
button:active{transform:translateY(0)}

/* ── KATEX ── */
#calculadora .katex{font-size:16px;}
#caja112 .katex{font-size:16px;}
#historial .katex{font-size:16px;}
#caja12 .katex{font-size:16px;}

/* ── FOOTER ── */
.siteFooter{background:var(--panel);border-top:1px solid var(--border);padding:14px 24px;}
.footerInner{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;}
.footerInner a{font-size:12px;color:var(--muted);text-decoration:none;}
.footerInner a:hover{color:var(--accent);}

/* ── RESPONSIVE ── */
@media(max-width:1100px){
  #caja1{flex-direction:column;min-height:auto;}
  #caja12{min-height:34px;}
  #caja11{flex:none;flex-direction:column;}
  #caja111{min-width:0;}
}
@media(max-width:700px){
  #tituloinicial{flex-direction:column;align-items:stretch;padding:8px 12px;}
  #controlesTop{justify-content:flex-end;}
  #tituloinicial h1{font-size:14px;text-align:left;justify-content:flex-start;}
  #caja111{flex-direction:column;}
  #caja1111{width:100%;min-width:0;}
  #historial{grid-template-columns:1fr;}
  .hist-caso-card{grid-column:span 1;}
  .paso-txt{display:none;}
  input{width:52px;}
}