:root {
  --azul: #13336b; --azul2: #1d4ed8; --oro: #f5b942; --fondo: #f3f5f9; --panel: #ffffff; --borde: #dde3ee;
  --texto: #1b2433; --tenue: #64748b; --ok: #15803d; --okf: #e8f6ee; --mal: #b42318; --malf: #fdecea;
  --cons: #0f172a; --consT: #e2e8f0; --fuente: 15px;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; font-family: Inter, system-ui, sans-serif; color: var(--texto); background: var(--fondo); display: flex; flex-direction: column; }
code, kbd, .consola, .archivo { font-family: "JetBrains Mono", Menlo, monospace; }
code { background: #eef2f8; border-radius: 4px; padding: 0 4px; font-size: .92em; }
button { font: inherit; cursor: pointer; }

.barra { display: flex; align-items: center; gap: 16px; padding: 10px 18px; background: var(--azul); color: #fff; }
.marca { display: flex; align-items: center; gap: 10px; }
.marca b { display: block; font-size: 16px; }
.marca span { display: block; font-size: 12px; color: #b9c8e6; }
.estado { margin-left: auto; display: flex; align-items: center; gap: 8px; font-size: 13px; background: rgba(255,255,255,.1); padding: 6px 12px; border-radius: 999px; }
.estado i { width: 9px; height: 9px; border-radius: 50%; background: var(--oro); animation: latir 1.2s infinite; }
.estado.listo i { background: #4ade80; animation: none; }
.estado.error i { background: #f87171; animation: none; }
@keyframes latir { 50% { opacity: .35; } }
.btn-menu { display: none; background: rgba(255,255,255,.14); color: #fff; border: 0; border-radius: 8px; padding: 7px 12px; }

.app { flex: 1; display: grid; grid-template-columns: 290px 1fr; min-height: 0; }
.lateral { background: var(--panel); border-right: 1px solid var(--borde); overflow-y: auto; padding: 14px 10px 20px; }
.clase { margin-bottom: 10px; }
.clase-cab { display: flex; align-items: center; gap: 10px; width: 100%; text-align: left; background: none; border: 0; padding: 9px 8px; border-radius: 10px; }
.clase-cab:hover { background: #f1f4fa; }
.num { flex: none; width: 30px; height: 30px; border-radius: 9px; background: var(--azul); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 14px; }
.clase-cab b { display: block; font-size: 14px; line-height: 1.25; }
.clase-cab small { color: var(--tenue); font-size: 12px; }
.clase.bloq .num { background: #cbd5e1; }
.clase.bloq .clase-cab { cursor: default; opacity: .7; }
.items { list-style: none; margin: 2px 0 6px; padding: 0 0 0 46px; }
.items li button { width: 100%; text-align: left; background: none; border: 0; padding: 6px 8px; border-radius: 7px; font-size: 13.5px; color: #334155; display: flex; gap: 8px; align-items: baseline; }
.items li button:hover { background: #f1f4fa; }
.items li button.activo { background: #e7eefc; color: var(--azul); font-weight: 600; }
.items .etq { font-size: 10.5px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--tenue); flex: none; width: 46px; }
.items .hecho::after { content: " ✓"; color: var(--ok); font-weight: 700; }
.grupo { font-size: 11px; color: var(--tenue); text-transform: uppercase; letter-spacing: .06em; margin: 8px 0 2px 54px; }

.centro { display: grid; grid-template-rows: auto minmax(220px, 1fr) minmax(170px, 34%); gap: 12px; padding: 14px 16px; min-height: 0; min-width: 0; }
.ficha { background: var(--panel); border: 1px solid var(--borde); border-radius: 12px; padding: 12px 16px; }
.ficha h1 { font-size: 18px; margin: 0 0 4px; color: var(--azul); }
.ficha p { margin: 4px 0; font-size: 14.5px; line-height: 1.5; }
.ficha .meta { font-size: 12px; color: var(--tenue); text-transform: uppercase; letter-spacing: .05em; }
.ficha .pista { background: #fff8e6; border-left: 3px solid var(--oro); padding: 6px 10px; border-radius: 6px; font-size: 13.5px; }
.ficha .esperada { margin-top: 6px; font-size: 13px; }
.ficha .esperada pre { margin: 4px 0 0; background: #f6f8fc; border: 1px solid var(--borde); border-radius: 8px; padding: 6px 10px; font-family: "JetBrains Mono", monospace; font-size: 12.5px; white-space: pre-wrap; }
details summary { cursor: pointer; color: var(--azul2); font-size: 13px; }

.editor-caja, .consola-caja { background: var(--panel); border: 1px solid var(--borde); border-radius: 12px; display: flex; flex-direction: column; min-height: 0; overflow: hidden; }
.herr { display: flex; align-items: center; gap: 10px; padding: 7px 10px; border-bottom: 1px solid var(--borde); background: #fafbfd; }
.herr-der { margin-left: auto; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.archivo { font-size: 13px; color: var(--azul); font-weight: 600; background: #eef2fb; padding: 3px 10px; border-radius: 6px; }
.titulo-consola { font-weight: 600; font-size: 13px; }
.tiempo { font-size: 12px; color: var(--tenue); }
.btn { border-radius: 8px; padding: 6px 11px; font-size: 13px; border: 1px solid var(--borde); background: #fff; color: var(--texto); }
.btn:hover { border-color: #b8c3d6; }
.btn.prim { background: var(--azul2); color: #fff; border-color: var(--azul2); font-weight: 600; padding: 7px 14px; }
.btn.prim:hover { background: #1e40af; }
.btn.prim:disabled { background: #94a3b8; border-color: #94a3b8; cursor: wait; }
.btn.peligro { background: var(--malf); color: var(--mal); border-color: #f5c2bd; }
.btn kbd { font-size: 10.5px; opacity: .75; margin-left: 6px; }
.tam { display: flex; } .tam .btn:first-child { border-radius: 8px 0 0 8px; } .tam .btn:last-child { border-radius: 0 8px 8px 0; border-left: 0; }

.editor { flex: 1; min-height: 0; }
.editor .CodeMirror { height: 100%; font-family: "JetBrains Mono", Menlo, monospace; font-size: var(--fuente); line-height: 1.55; }
.CodeMirror-gutters { background: #fafbfd; border-right: 1px solid var(--borde); }
.linea-error { background: #fdecea !important; }

.consola { flex: 1; overflow: auto; background: var(--cons); color: var(--consT); padding: 10px 14px; font-size: calc(var(--fuente) - 1px); line-height: 1.5; white-space: pre-wrap; word-break: break-word; }
.consola .tenue { color: #94a3b8; }
.consola .err { color: #fca5a5; }
.consola .sis { color: #93c5fd; }
.ayuda { border-top: 1px solid var(--borde); padding: 9px 14px; background: #fff8e6; font-size: 13.5px; max-height: 40%; overflow: auto; }
.ayuda b { color: #92400e; }
.ayuda p { margin: 3px 0; }
.revision { border-top: 1px solid var(--borde); padding: 9px 14px; font-size: 13.5px; max-height: 45%; overflow: auto; }
.revision.ok { background: var(--okf); } .revision.mal { background: var(--malf); }
.revision h3 { margin: 0 0 4px; font-size: 14px; }
.revision ul { margin: 0; padding-left: 18px; }
.revision li.si { color: var(--ok); } .revision li.no { color: var(--mal); }
.revision .comp { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 6px; }
.revision pre { margin: 2px 0 0; background: #fff; border: 1px solid var(--borde); border-radius: 6px; padding: 5px 8px; font-family: "JetBrains Mono", monospace; font-size: 12px; white-space: pre-wrap; }

.pie { text-align: center; font-size: 11.5px; color: var(--tenue); padding: 6px; }
.pie a { color: var(--tenue); }

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .lateral { position: fixed; inset: 56px 0 0 0; z-index: 20; display: none; border-right: 0; }
  .lateral.abierto { display: block; }
  .btn-menu { display: inline-block; }
  .estado span { display: none; }
  .centro { grid-template-rows: auto 380px 260px; padding: 10px; }
  .btn kbd { display: none; }
  .revision .comp { grid-template-columns: 1fr; }
}