/* una columna; el entrenador tiene aire de terminal: monoespaciada, el color solo dice algo */
:root {
  color-scheme: light;
  --bg: #f6f5f0;
  --paper: #ffffff;
  --fg: #1e2420;
  --dim: #6b736d;
  --accent: #2f6f4f;
  --accent-fg: #ffffff;
  --good: #1f7a46;
  --bad: #b8382f;
  --warn: #946200;
  --line: #dcdcd2;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #121513; --paper: #1a1e1b; --fg: #e4e8e4; --dim: #8e978f;
    --accent: #6fcf97; --accent-fg: #0d1a12; --good: #6fcf97; --bad: #f2867d;
    --warn: #e8c15a; --line: #2b312c;
  }
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.55 var(--sans);
  -webkit-text-size-adjust: 100%;
  padding:
    max(8px, env(safe-area-inset-top))
    max(16px, env(safe-area-inset-right))
    max(32px, env(safe-area-inset-bottom))
    max(16px, env(safe-area-inset-left));
}
.page { max-width: 40rem; margin-inline: auto; display: grid; grid-template-columns: minmax(0, 1fr); gap: 24px; }
main { display: grid; grid-template-columns: minmax(0, 1fr); gap: 20px; min-width: 0; }
a { color: var(--accent); }
p { margin: 0; }
h1, h2, h3 { line-height: 1.2; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(1.75rem, 7vw, 2.4rem); }
h2 { font-size: 1.25rem; margin-top: 12px; }
h3 { font-size: 1rem; margin-top: 8px; }
code { font: .92em var(--mono); background: var(--paper); border: 1px solid var(--line); border-radius: 4px; padding: 0 .25em; }
.dim { color: var(--dim); }
.bien { color: var(--good); }
.mal { color: var(--bad); }
.ojo { color: var(--warn); }

header { display: flex; justify-content: space-between; align-items: baseline; padding-top: 8px; }
.home { font: 700 1.05rem var(--mono); color: var(--fg); text-decoration: none; }
.idiomas { font-size: .9rem; color: var(--dim); }
.idiomas a { color: var(--dim); }
.idiomas b { color: var(--fg); font-weight: 600; }
footer { color: var(--dim); font-size: .9rem; border-top: 1px solid var(--line); padding-top: 16px; }
footer a { color: var(--dim); }

button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
button:focus-visible, input:focus-visible, textarea:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* --- el entrenador --- */
.app {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  font-family: var(--mono);
  font-size: .95rem;
  min-width: 0;
}
.app > div > div { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; }
.pista-menu { font-size: .85rem; }
.app code { border: 0; padding: 0; background: none; font-size: 1em; }

.lista { list-style: none; margin: 0; padding: 0; display: grid; }
.fila { display: flex; align-items: center; gap: 8px; border-top: 1px solid var(--line); padding: 6px 0; }
.fila:last-child { border-bottom: 1px solid var(--line); }
.correr {
  flex: 1; min-width: 0;
  display: grid; grid-template-columns: 2ch 1fr; column-gap: 10px;
  text-align: left; background: none; border: 0; padding: 6px 0;
}
.correr .n { color: var(--dim); text-align: right; }
.correr .nombre { font-weight: 600; overflow-wrap: anywhere; }
.correr .stats { grid-column: 2; font-size: .85rem; }
.modos { display: flex; gap: 6px; }
.modos button, .chips button, .acciones button, .secundario {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  min-height: 40px;
  min-width: 44px;
  padding: 0 10px;
}
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.atajos { font-size: .9rem; color: var(--dim); }
.atajos button { background: none; border: 0; padding: 4px 0; color: var(--accent); text-decoration: underline; }
.aviso:empty { display: none; }

.prompt { display: flex; align-items: center; gap: 8px; }
.prompt > span { color: var(--accent); font-weight: 700; }
.prompt input {
  flex: 1; min-width: 0;
  font: 1.1rem var(--mono);
  padding: 8px 10px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
}
.prompt button, button.principal {
  font: 600 1rem var(--sans);
  color: var(--accent-fg);
  background: var(--accent);
  border: 0;
  border-radius: 6px;
  min-height: 44px;
  padding: 0 16px;
}

.cab { font-size: .8rem; letter-spacing: .02em; display: flex; justify-content: space-between; gap: 8px; }
.reloj { font-variant-numeric: tabular-nums; font-weight: 700; color: var(--warn); }
.num { font-size: .85rem; margin-bottom: -10px; }
.pregunta { font: 700 clamp(1.8rem, 9vw, 2.6rem)/1.2 var(--mono); overflow-wrap: anywhere; min-height: 1.2em; }
.feedback { min-height: 1.55em; }
.acciones { display: flex; gap: 8px; }
.rastro { list-style: none; margin: 0; padding: 0; font-size: .85rem; color: var(--dim); display: grid; gap: 2px; }
.rastro li.mal { color: var(--bad); }

.teclado { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.teclado button {
  font: 500 1.35rem var(--mono);
  min-height: 52px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
}
.teclado button:active { background: var(--line); }
.teclado [data-k="abc"], .teclado [data-k="r"] { font-size: 1rem; }
.teclado .ok { grid-column: span 2; background: var(--accent); color: var(--accent-fg); border-color: var(--accent); font-family: var(--sans); font-weight: 600; }
#tecla-r[hidden] + [data-k="del"] { grid-column: span 2; }

.memo-box { display: grid; gap: 14px; }
.pares { display: flex; flex-wrap: wrap; gap: 8px; }
.par {
  display: grid; justify-items: center; min-width: 3.2em;
  padding: 4px 6px;
  border: 1px solid var(--line); border-radius: 6px; background: var(--bg);
}
.par b { font-size: 1.4rem; }
.par small { font-family: var(--sans); font-size: .75rem; color: var(--dim); }
.memo-box .par b { font-size: 2rem; }

#rep-cuerpo { display: grid; gap: 10px; }
.resumen { font-size: 1.1rem; }
.record { font-weight: 700; }
.fallas, .corridas { margin: 0; padding-left: 1.2em; display: grid; gap: 4px; }
.corridas { list-style: none; padding: 0; }
.corridas .fallas { margin-top: 2px; font-size: .85rem; }

.tabla-major { display: grid; grid-template-columns: repeat(auto-fill, minmax(4.2em, 1fr)); gap: 4px; }
.celda { display: grid; padding: 2px 4px; border: 1px solid var(--line); border-radius: 4px; min-width: 0; }
.celda b { font-size: .8rem; color: var(--dim); font-weight: 500; }
.celda small { font-family: var(--sans); font-size: .8rem; overflow-wrap: anywhere; }
.celda.hueco { border-style: dashed; }
.celda.hueco small { color: var(--dim); }
textarea {
  width: 100%;
  font: .95rem/1.5 var(--mono);
  padding: 8px 10px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
}
.secuencia { display: grid; gap: 8px; }

/* --- la ayuda --- */
.ayuda { display: grid; gap: 12px; }
.ayuda ul { margin: 0; padding-left: 1.2em; display: grid; gap: 6px; }
.scroll { overflow-x: auto; }
table { border-collapse: collapse; font-size: .9rem; width: 100%; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; color: var(--dim); }
.patrones td:nth-child(3), .patrones td:nth-child(4) { font-family: var(--mono); white-space: nowrap; }
.nw { white-space: nowrap; }