:root {
  --bg: #fbfbfa;
  --surface: #ffffff;
  --surface-2: #f7f6f3;
  --border: #eaeaea;
  --text: #2f3437;
  --strong: #111111;
  --muted: #787774;
  --ok-bg: #edf3ec;   --ok: #346538;
  --ko-bg: #fdebec;   --ko: #9f2f2d;
  --info-bg: #e1f3fe; --info: #1f6c9f;
  --warn-bg: #fbf3db; --warn: #956400;
  --serif: "Newsreader", "Lyon Text", Georgia, serif;
  --sans: "Helvetica Neue", "SF Pro Display", Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", ui-monospace, monospace;
  --radius: 8px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--serif); color: var(--strong); letter-spacing: -0.02em; line-height: 1.15; font-weight: 500; }
h1 { font-size: 2.1rem; margin: 0.2em 0 0.6em; }
h2 { font-size: 1.45rem; margin: 1.6em 0 0.5em; }
h3 { font-size: 1.15rem; margin: 1.4em 0 0.4em; }
a { color: var(--info); }
code, pre, kbd, .mono { font-family: var(--mono); font-size: 0.86rem; }
blockquote { margin: 1.2em 0; padding: 0.9em 1.1em; background: var(--surface-2); border-left: 3px solid var(--strong); border-radius: 0 var(--radius) var(--radius) 0; }
blockquote p { margin: 0.2em 0; }
button { font: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--info); outline-offset: 2px; }

/* ---------- botones ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5em;
  background: var(--strong); color: #fff; border: 1px solid var(--strong);
  padding: 0.6em 1.1em; border-radius: 6px; font-weight: 500; text-decoration: none;
  transition: background 150ms, transform 100ms;
}
.btn:hover { background: #333; }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn.secondary { background: var(--surface); color: var(--strong); border-color: var(--border); }
.btn.secondary:hover { background: var(--surface-2); }
.btn.small { padding: 0.35em 0.75em; font-size: 0.85rem; white-space: nowrap; }

.tag {
  display: inline-block; padding: 0.15em 0.7em; border-radius: 9999px;
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  background: var(--surface-2); color: var(--muted);
}
.tag.ok { background: var(--ok-bg); color: var(--ok); }
.tag.ko { background: var(--ko-bg); color: var(--ko); }
.tag.info { background: var(--info-bg); color: var(--info); }
.tag.warn { background: var(--warn-bg); color: var(--warn); }

/* ---------- ingreso ---------- */
.join {
  min-height: 100vh; display: grid; place-items: center; padding: 24px 16px;
  background: radial-gradient(circle at 20% 15%, rgba(149, 100, 0, 0.04), transparent 45%), var(--bg);
}
.join-card { width: 100%; max-width: 440px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 36px 32px; }
.join-card h1 { font-size: 1.9rem; }
.join-card p.lead { color: var(--muted); margin-top: -0.4em; }
label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--strong); margin: 1em 0 0.35em; }
input[type=text], select, textarea {
  width: 100%; font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--border); border-radius: 6px; padding: 0.6em 0.75em;
}
input[type=text]:focus, select:focus, textarea:focus { border-color: #b9b8b4; outline: none; }
.perfiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.perfiles label { margin: 0; font-weight: 500; border: 1px solid var(--border); border-radius: 6px; padding: 0.55em; text-align: center; cursor: pointer; }
.perfiles input { position: absolute; opacity: 0; }
.perfiles input:checked + span { color: var(--strong); font-weight: 600; }
.perfiles label:has(input:checked) { border-color: var(--strong); background: var(--surface-2); }
.error { color: var(--ko); font-size: 0.9rem; min-height: 1.4em; margin-top: 0.8em; }

/* ---------- shell ---------- */
.shell { display: grid; grid-template-columns: 300px 1fr; min-height: 100vh; }
.sidebar { border-right: 1px solid var(--border); background: var(--surface); padding: 24px 0; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.brand { padding: 0 24px 16px; border-bottom: 1px solid var(--border); }
.brand .titulo { font-family: var(--serif); font-size: 1.15rem; color: var(--strong); line-height: 1.25; }
.brand .sub { color: var(--muted); font-size: 0.8rem; }
.bloque { padding: 14px 24px 4px; font-size: 0.7rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.paso-link {
  display: grid; grid-template-columns: 18px 1fr auto; gap: 10px; align-items: start;
  width: 100%; text-align: left; background: none; border: 0; padding: 7px 24px; color: var(--text); font-size: 0.9rem; line-height: 1.35;
}
.paso-link:hover { background: var(--surface-2); }
.paso-link.activo { background: var(--surface-2); color: var(--strong); font-weight: 600; box-shadow: inset 2px 0 0 var(--strong); }
.paso-link .min { color: var(--muted); font-size: 0.75rem; font-family: var(--mono); }
.dot { width: 14px; height: 14px; margin-top: 3px; border-radius: 50%; border: 1.5px solid #cfcdc8; display: grid; place-items: center; }
.dot.hecho { background: var(--ok); border-color: var(--ok); }
.dot.hecho::after { content: ""; width: 5px; height: 8px; border: solid #fff; border-width: 0 1.5px 1.5px 0; transform: rotate(45deg) translate(-1px, -1px); }
.dot.grupo { border-color: var(--info); box-shadow: 0 0 0 3px var(--info-bg); }
.yo { padding: 16px 24px; border-top: 1px solid var(--border); margin-top: 12px; font-size: 0.85rem; color: var(--muted); }

.main { min-width: 0; }
.topbar {
  position: sticky; top: 0; z-index: 5; display: flex; gap: 12px; align-items: center; justify-content: space-between;
  padding: 10px 40px; background: rgba(251, 251, 250, 0.88); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}
.topbar .grupo { color: var(--muted); }
.topbar .grupo b { color: var(--strong); font-weight: 600; }
.reloj { font-family: var(--mono); color: var(--strong); white-space: nowrap; }
.menu-btn { display: none; }

.contenido { max-width: 820px; padding: 40px 40px 120px; }
.meta { display: flex; gap: 8px; align-items: center; }
.cuerpo { font-size: 1.02rem; }
.cuerpo li { margin: 0.25em 0; }

.panel { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 24px 28px; margin: 28px 0; }
.panel > h3:first-child, .panel > .panel-head { margin-top: 0; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; }
.panel-head h3 { margin: 0; }
.num { display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--strong); color: #fff; font-size: 0.75rem; font-family: var(--mono); margin-right: 8px; }

.descargas { list-style: none; padding: 0; margin: 0; }
.descargas li { border-bottom: 1px solid var(--border); }
.descargas li:last-child { border-bottom: 0; }
.descargas a { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; text-decoration: none; color: var(--strong); }
.descargas a:hover span:first-child { text-decoration: underline; }
.descargas .ext { font-family: var(--mono); font-size: 0.75rem; color: var(--muted); text-transform: uppercase; }

pre.prompt {
  white-space: pre-wrap; word-break: break-word; margin: 0; max-height: 340px; overflow: auto;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; line-height: 1.55; color: var(--strong);
}
textarea.respuesta { min-height: 180px; font-family: var(--mono); font-size: 0.85rem; resize: vertical; }
.acciones { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; align-items: center; }
.ayuda { color: var(--muted); font-size: 0.85rem; }

.opcion { display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: start; padding: 12px 0; border-bottom: 1px solid var(--border); cursor: pointer; font-weight: 400; color: var(--text); margin: 0; font-size: 1rem; }
.opcion:last-child { border-bottom: 0; }
.opcion input { width: 17px; height: 17px; margin-top: 4px; accent-color: var(--strong); }

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th { text-align: left; font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); font-weight: 600; padding: 8px 10px; border-bottom: 1px solid var(--border); }
td { padding: 9px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
td.r, th.r { text-align: right; font-family: var(--mono); font-size: 0.84rem; white-space: nowrap; }
tr.fila-ko td { background: #fffafa; }
tr.total td { font-weight: 600; color: var(--strong); border-top: 1px solid var(--strong); }
.tabla-scroll { overflow-x: auto; }

.resultado { border-radius: 12px; border: 1px solid var(--border); margin: 28px 0; overflow: hidden; background: var(--surface); }
.resultado .cabeza { padding: 16px 24px; display: flex; gap: 14px; align-items: center; border-bottom: 1px solid var(--border); }
.resultado.ok .cabeza { background: var(--ok-bg); color: var(--ok); }
.resultado.ko .cabeza { background: var(--ko-bg); color: var(--ko); }
.resultado .puntaje { font-family: var(--serif); font-size: 2rem; line-height: 1; }
.resultado .cuerpo-res { padding: 8px 24px 20px; }
.leccion { background: var(--warn-bg); border-radius: var(--radius); padding: 14px 18px; margin-top: 16px; color: #4a3a10; }
.leccion p { margin: 0.4em 0; }
.nota { color: var(--muted); font-size: 0.8rem; }

.alerta { display: grid; grid-template-columns: auto 1fr; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.alerta:last-child { border-bottom: 0; }

.nav-pasos { display: flex; justify-content: space-between; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border); }

.fade { animation: fade 500ms cubic-bezier(0.16, 1, 0.3, 1) both; }
@keyframes fade { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .fade { animation: none; } }

/* ---------- facilitador ---------- */
.fac { max-width: 1100px; margin: 0 auto; padding: 32px 16px 80px; }
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 20px 0 28px; }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; }
.kpi .v { font-family: var(--serif); font-size: 2.2rem; color: var(--strong); line-height: 1.1; }
.kpi .l { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; }
.barra { height: 6px; background: var(--surface-2); border-radius: 3px; overflow: hidden; min-width: 80px; }
.barra > i { display: block; height: 100%; background: var(--ok); }
tr.actual td { background: var(--info-bg); }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; inset: 0 auto 0 0; width: 300px; z-index: 20; transform: translateX(-100%); transition: transform 250ms; }
  .sidebar.abierto { transform: none; box-shadow: 0 0 0 100vmax rgba(0, 0, 0, 0.25); }
  .menu-btn { display: inline-flex; }
  .topbar { padding: 10px 16px; }
  .contenido { padding: 24px 16px 100px; }
  .panel { padding: 18px 16px; }
  h1 { font-size: 1.7rem; }
  .kpis { grid-template-columns: repeat(2, 1fr); }
}

/* Matriz de decisión (caso C) */
fieldset.decision { border: 0; padding: 0; margin: 20px 0 0; }
fieldset.decision legend { font-weight: 500; color: var(--strong); padding: 0; margin-bottom: 4px; }
.votos { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.votos h4 { margin: 0 0 8px; font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 500; }
.voto { display: grid; grid-template-columns: 110px 1fr 36px; gap: 8px; align-items: center; margin: 6px 0; font-size: .92rem; }
@media (max-width: 600px) {
  table.matriz th, table.matriz td { padding: 8px 4px; font-size: .85rem; }
  table.matriz .nota { display: none; }
}