/* Trading Cripto — simulaciones interactivas (extiende curso.css).
   Compra/venta se apoyan en --success/--danger, que ya cambian con el tema.
   Nunca se distingue compra de venta SOLO por color: el kit acompaña con signo o rótulo. */
:root { --sim-buy: var(--success); --sim-sell: var(--danger); }

.lesson-body .sim { margin-top: 1.5rem; margin-bottom: 1.5rem; }
.sim-frame { font-family: var(--font-mono); font-size: 0.82rem; line-height: 1.4; color: var(--fg-dim); background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.sim-head { padding: 0.8rem 1rem 0.7rem; border-bottom: 1px solid var(--border-soft); display: flex; gap: 0.75rem; align-items: flex-start; justify-content: space-between; }
.sim-head h4 { margin: 0; font-size: 0.92rem; font-family: var(--font-mono); color: var(--fg); letter-spacing: -0.01em; }
.sim-head p { margin: 0.2rem 0 0; font-family: var(--font-sans); font-size: 0.85rem; line-height: 1.45; color: var(--muted); }
.sim-body { padding: 0.9rem 1rem 1rem; display: grid; gap: 0.85rem; min-width: 0; }
.sim-body > * { min-width: 0; }

.sim-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr)); gap: 0.85rem; align-items: start; }
.sim-cols > * { min-width: 0; }
.sim-row { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.sim-grow { flex: 1 1 auto; }

/* controles */
.sim-controls { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(190px, 100%), 1fr)); gap: 0.7rem 1rem; }
.sim-slider { display: grid; gap: 0.2rem; min-width: 0; }
.sim-slider .lbl { display: flex; justify-content: space-between; gap: 0.5rem; color: var(--muted); font-size: 0.76rem; }
.sim-slider .val { color: var(--fg); font-weight: 700; font-variant-numeric: tabular-nums; white-space: nowrap; }
.sim-slider input[type="range"] { width: 100%; accent-color: var(--accent); height: 22px; margin: 0; cursor: pointer; }

.sim-btn { font-family: var(--font-mono); font-size: 0.78rem; font-weight: 700; padding: 0.5rem 0.75rem; min-height: 36px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--bg-elev-2); color: var(--fg); cursor: pointer; transition: border-color .12s, background .12s, transform .05s; }
.sim-btn:hover:not(:disabled) { border-color: var(--accent); }
.sim-btn:active:not(:disabled) { transform: translateY(1px); }
.sim-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.sim-btn--buy { border-color: var(--tint-success-line); background: var(--tint-success); color: var(--sim-buy); }
.sim-btn--buy:hover:not(:disabled) { border-color: var(--sim-buy); }
.sim-btn--sell { border-color: color-mix(in srgb, var(--sim-sell) 45%, transparent); background: var(--tint-danger); color: var(--sim-sell); }
.sim-btn--sell:hover:not(:disabled) { border-color: var(--sim-sell); }
.sim-btn--primary { background: var(--accent); border-color: transparent; color: var(--on-accent); }
.sim-btn--primary:hover:not(:disabled) { background: var(--accent-deep); border-color: transparent; }
.sim-btn--ghost { background: transparent; color: var(--muted); }

.sim-seg { display: inline-flex; flex-wrap: wrap; border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.sim-seg button { font-family: var(--font-mono); font-size: 0.76rem; font-weight: 600; padding: 0.45rem 0.65rem; min-height: 34px; background: transparent; color: var(--muted); border: 0; border-right: 1px solid var(--border-soft); cursor: pointer; }
.sim-seg button:last-child { border-right: 0; }
.sim-seg button:hover { color: var(--fg); }
.sim-seg button[aria-pressed="true"] { background: var(--tint-accent); color: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--tint-accent-line); }

.sim-check { display: inline-flex; gap: 0.4rem; align-items: center; color: var(--fg-dim); font-size: 0.78rem; cursor: pointer; min-height: 30px; }
.sim-check input { accent-color: var(--accent); width: 15px; height: 15px; }

/* lecturas */
.sim-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(112px, 45%), 1fr)); gap: 0.5rem; }
.sim-stat { background: var(--bg-elev-2); border: 1px solid var(--border-soft); border-radius: var(--radius-sm); padding: 0.45rem 0.6rem; min-width: 0; }
.sim-stat .k { display: block; font-size: 0.68rem; color: var(--muted); overflow-wrap: anywhere; }
.sim-stat .v { display: block; margin-top: 0.1rem; font-size: 0.95rem; font-weight: 700; color: var(--fg); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.sim-stat .v.buy, .sim-tone-buy { color: var(--sim-buy); }
.sim-stat .v.sell, .sim-tone-sell { color: var(--sim-sell); }
.sim-stat .v.warn, .sim-tone-warn { color: var(--warn); }
.sim-stat .v.accent { color: var(--accent-soft); }

.sim-note { font-family: var(--font-sans); font-size: 0.86rem; line-height: 1.5; color: var(--fg-dim); background: var(--bg-elev-2); border: 1px solid var(--border-soft); border-radius: var(--radius-sm); padding: 0.6rem 0.75rem; min-height: 2.4em; }
.sim-note b { color: var(--fg); }

.sim-log { list-style: none; margin: 0; padding: 0; height: 132px; overflow-y: auto; font-size: 0.74rem; background: var(--bg-elev-2); border: 1px solid var(--border-soft); border-radius: var(--radius-sm); scrollbar-width: thin; }
.lesson-body .sim-log li { margin: 0; padding: 0.2rem 0.55rem; border-bottom: 1px solid var(--border-soft); font-variant-numeric: tabular-nums; }
.sim-log li:last-child { border-bottom: 0; }

/* charts */
.sim-chart { width: 100%; min-width: 0; }
.sim-chart svg { display: block; width: 100%; font-family: var(--font-mono); touch-action: pan-y; }
.sim-legend { display: flex; flex-wrap: wrap; gap: 0.25rem 0.85rem; font-size: 0.72rem; color: var(--muted); }
.sim-legend i { display: inline-block; width: 11px; height: 3px; border-radius: 2px; margin-right: 0.35rem; vertical-align: middle; }

/* escalera del libro de órdenes */
.sim-ladder { display: grid; gap: 0; font-size: 0.76rem; font-variant-numeric: tabular-nums; border: 1px solid var(--border-soft); border-radius: var(--radius-sm); overflow: hidden; background: var(--bg-elev-2); user-select: none; }
.sim-ladder .lv { position: relative; display: grid; grid-template-columns: 1fr 5.8em 1fr; align-items: center; height: 21px; width: 100%; padding: 0 0.5rem; background: transparent; border: 0; font: inherit; color: var(--fg-dim); cursor: pointer; text-align: left; }
.sim-ladder .lv:hover { background: var(--tint-accent); }
.sim-ladder .lv .bar { position: absolute; top: 2px; bottom: 2px; opacity: 0.2; pointer-events: none; }
.sim-ladder .lv.ask .bar { right: calc(50% + 2.9em); background: var(--sim-sell); }
.sim-ladder .lv.bid .bar { left: calc(50% + 2.9em); background: var(--sim-buy); }
.sim-ladder .lv .px { text-align: center; font-weight: 700; position: relative; }
.sim-ladder .lv.ask .px { color: var(--sim-sell); }
.sim-ladder .lv.bid .px { color: var(--sim-buy); }
.sim-ladder .lv .l, .sim-ladder .lv .r { position: relative; overflow: hidden; white-space: nowrap; }
.sim-ladder .lv .r { text-align: right; }
.sim-ladder .lv.hit { background: color-mix(in srgb, var(--warn) 22%, transparent); }
.sim-ladder .lv .tag { font-size: 0.66rem; color: var(--warn); font-weight: 700; }
.sim-ladder .sprd { display: flex; justify-content: space-between; gap: 0.5rem; padding: 0.2rem 0.5rem; border-block: 1px solid var(--border); font-size: 0.72rem; color: var(--muted); }
.sim-ladder .sprd b { color: var(--fg); }

.sim-error { font-family: var(--font-sans); font-size: 0.88rem; color: var(--muted); padding: 0.9rem 1rem; border: 1px dashed var(--border); border-radius: var(--radius-sm); }

/* Móvil: el nombre de este curso es largo y las fórmulas/tablas no deben empujar la página. */
@media (max-width: 860px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .topbar { gap: 0.5rem; }
  .topbar .crumb { min-width: 0; flex: 0 1 auto; overflow: hidden; }
  .topbar .crumb > a:first-child, .topbar .crumb > a:first-child + .sep, .topbar .crumb > a + .sep + a + .sep, .topbar .crumb .cur { display: none; }
  .topbar .bar-wrap { min-width: 72px; flex: 1 1 72px; }
}
.lesson-body .katex-display { overflow-x: auto; overflow-y: hidden; padding: 0.15rem 0 0.5rem; }
.lesson-body td.num, .lesson-body th.num { text-align: right; font-variant-numeric: tabular-nums; }
.lesson-body table caption { caption-side: bottom; padding-top: 0.6rem; color: var(--muted); font-size: 0.82rem; text-align: left; }

@media (prefers-reduced-motion: reduce) { .sim-btn { transition: none; } }