/* ═══════════════════════════════════════════════════════════════════
   DEMIN CONSCIENTE — Biblioteca · Portal de microclases
   Una sola página: umbral → selector → experiencia. Primero elijo,
   después entro. Mismo lenguaje del hub (halo, itálica, dorado como
   único acento, espacio negativo). La presentación en sí vive en deck.css.
   ═══════════════════════════════════════════════════════════════════ */

body.mc { overflow-x: hidden; overflow-y: auto; }
body.mc.is-presenting { overflow: hidden; }

.mc-portal {
  min-height: 100vh;
  padding: 28px clamp(16px, 4vw, 64px) 56px;
  max-width: 1480px; margin: 0 auto;
}

.mc-home {
  display: inline-block;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-quiet); text-decoration: none;
  padding: 8px 0;
}
.mc-home:hover, .mc-home:focus-visible { color: var(--cream); }

/* ─── Umbral ───────────────────────────────────────────────────── */
.mc-threshold {
  position: relative; text-align: center;
  padding: clamp(28px, 5vh, 56px) 0 clamp(28px, 5vh, 48px);
}
.mc-threshold__halo {
  position: absolute; left: 50%; top: 50%;
  width: min(420px, 90vw); aspect-ratio: 1; transform: translate(-50%, -50%);
  color: var(--gold); pointer-events: none;
}
.mc-threshold__halo svg { width: 100%; height: 100%; overflow: visible; }
.mc-threshold__halo circle { fill: none; stroke: currentColor; stroke-width: 0.35; }
.mc-threshold__halo circle:nth-child(1) { opacity: 0.18; }
.mc-threshold__halo circle:nth-child(2) { opacity: 0.12; }
.mc-threshold__halo circle:nth-child(3) { opacity: 0.08; }
.mc-threshold h1 {
  position: relative;
  font-family: var(--font-editorial); font-weight: 400; letter-spacing: -0.01em;
  font-size: clamp(2.6rem, 6vw, 4.5rem); line-height: 1.02; margin: 0;
}
.mc-threshold p {
  position: relative; margin: 14px 0 0;
  font-family: var(--font-editorial); font-style: italic; font-size: clamp(1.15rem, 2vw, 1.5rem);
  color: var(--ink-muted);
}

/* ─── Selector + experiencia ───────────────────────────────────── */
.mc-layout {
  display: grid; grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: clamp(32px, 4vw, 72px); align-items: start;
}

.mc-selector ol { list-style: none; margin: 0; padding: 0; }
.mc-selector li + li { border-top: 1px solid var(--rule); }
.mc-option {
  display: grid; grid-template-columns: 44px 1fr; align-items: baseline; row-gap: 4px;
  width: 100%; text-align: left; cursor: pointer;
  background: none; border: 0; color: var(--ink-muted);
  padding: 20px 0 20px 18px; position: relative;
  font: inherit;
}
.mc-option__n { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.14em; color: var(--ink-quiet); }
.mc-option__name { font-family: var(--font-editorial); font-size: 1.55rem; line-height: 1.2; }
.mc-option__sub {
  grid-column: 2; font-family: var(--font-editorial); font-style: italic; font-size: 1rem;
  color: var(--ink-muted); max-height: 0; opacity: 0; overflow: hidden;
}
/* Estado activo: punto dorado que respira una vez, número dorado, nombre crema, frase visible. */
.mc-option::before {
  content: ""; position: absolute; left: 0; top: 30px;
  width: 7px; height: 7px; border-radius: 50%;
  border: 1px solid var(--gold); transform: scale(0); opacity: 0;
}
.mc-option:hover .mc-option__name, .mc-option:focus-visible .mc-option__name { color: var(--cream); }
.mc-option:focus-visible { outline: 1px solid var(--rule-strong); outline-offset: 4px; }
.mc-option[aria-current="true"] { color: var(--cream); }
.mc-option[aria-current="true"] .mc-option__n { color: var(--gold); }
.mc-option[aria-current="true"] .mc-option__sub { max-height: 3em; opacity: 1; }
.mc-option[aria-current="true"]::before { transform: scale(1); opacity: 1; background: var(--gold); }

.mc-experience { min-width: 0; }
.mc-frame {
  position: relative; width: 100%; aspect-ratio: 16 / 9;
  border: 1px solid var(--rule); border-radius: 14px; overflow: hidden;
  background: var(--dark); cursor: pointer;
}
.mc-frame:focus-visible { outline: 1px solid var(--rule-strong); outline-offset: 4px; }
.mc-frame .stage { transition: opacity 0s; }

.mc-info {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 18px 32px; margin-top: 28px;
}
.mc-info__text { min-width: 0; }
.mc-info__title { font-family: var(--font-editorial); font-weight: 400; font-size: 1.9rem; line-height: 1.2; margin: 0; }
.mc-info__sub { font-family: var(--font-editorial); font-style: italic; font-size: 1.1rem; color: var(--ink-muted); margin: 4px 0 0; }

/* CTA primario del ecosistema (DESIGN.md): pill dorada, un solo CTA por pantalla. */
.mc-cta {
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; min-width: 220px; padding: 0 30px;
  background: var(--gold); color: var(--dark); border: 0; border-radius: 999px;
  font-family: var(--font-sans); font-weight: 500; font-size: 16px; cursor: pointer;
}
.mc-cta:focus-visible { outline: 2px solid var(--cream); outline-offset: 3px; }
.mc-cta::after {
  content: ""; position: absolute; inset: -6px; border-radius: 999px;
  border: 1px solid var(--rule-strong); opacity: 0; pointer-events: none;
}

.mc-keys { width: 100%; margin: 0; font-size: 13px; color: var(--ink-quiet); }
.mc-keys kbd { font-family: var(--font-mono); font-size: 12px; color: var(--gold-soft); }

.mc-siblings {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  margin-top: 36px; padding-top: 18px; border-top: 1px solid var(--rule);
  font-size: 14px;
}
.mc-siblings button {
  background: none; border: 0; padding: 8px 0; cursor: pointer; font: inherit;
  color: var(--ink-muted); min-height: 44px;
}
.mc-siblings button:hover, .mc-siblings button:focus-visible { color: var(--cream); }
.mc-siblings button[hidden] { display: none !important; }
.mc-siblings .mc-back { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-quiet); }
.mc-siblings > span { flex: 1; }
.mc-siblings > span:last-child { text-align: right; }

/* ─── Modo presentación: la presentación ocupa toda la ventana ── */
body.is-presenting .mc-frame {
  position: fixed; inset: 0; z-index: 10;
  aspect-ratio: auto; border: 0; border-radius: 0; cursor: default;
}
body.is-presenting .mc-portal > :not(.mc-layout),
body.is-presenting .mc-selector,
body.is-presenting .mc-info,
body.is-presenting .mc-siblings { visibility: hidden; }

.mc-exit {
  position: fixed; top: 16px; right: 16px; z-index: 12;
  background: rgba(28, 26, 24, 0.7); color: var(--ink-muted);
  border: 1px solid var(--rule); border-radius: 999px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 10px 16px; min-height: 40px; cursor: pointer;
  opacity: 0; visibility: hidden; pointer-events: none;
}
body.is-presenting.show-exit .mc-exit { opacity: 1; visibility: visible; pointer-events: auto; }
.mc-rotate {
  display: none; position: fixed; left: 0; right: 0; bottom: 20px; z-index: 11;
  text-align: center; font-size: 13px; color: var(--ink-quiet); padding: 0 24px;
}
@media (orientation: portrait) and (max-width: 700px) {
  body.is-presenting .mc-rotate { display: block; }
}

/* ─── Tablet y móvil: el mismo sistema, selector en una fila ───── */
@media (max-width: 1099px) {
  /* minmax(0, 1fr): sin esto la fila de pills (nowrap) ensancha la columna y toda la página se desborda (bug real a 900px y en móvil). */
  .mc-layout { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .mc-selector { min-width: 0; }
  .mc-selector { margin: 0 calc(-1 * clamp(16px, 4vw, 64px)); }
  .mc-selector ol {
    position: relative; /* referencia de offsetLeft para centrar la pill activa */
    display: flex; gap: 8px; overflow-x: auto; scroll-snap-type: x proximity;
    scroll-padding-inline: clamp(16px, 4vw, 64px);
    padding: 4px clamp(16px, 4vw, 64px) 8px; scrollbar-width: none;
  }
  .mc-selector ol::-webkit-scrollbar { display: none; }
  .mc-selector li + li { border-top: 0; }
  .mc-selector li { flex: none; scroll-snap-align: start; }
  /* Patrón aprobado del Laboratorio: nombres como navegación, activo en pill dorada. */
  .mc-option {
    display: inline-flex; gap: 10px; align-items: baseline; width: auto;
    padding: 12px 18px; min-height: 44px; border-radius: 999px; border: 1px solid var(--rule);
  }
  .mc-option::before { display: none; }
  .mc-option__name { font-size: 1.05rem; white-space: nowrap; }
  .mc-option__sub { display: none; }
  .mc-option[aria-current="true"] { background: var(--gold); border-color: var(--gold); color: var(--dark); }
  .mc-option[aria-current="true"] .mc-option__n { color: var(--dark); }
  .mc-option[aria-current="true"]:hover .mc-option__name { color: var(--dark); }
}
@media (max-width: 600px) {
  .mc-info { flex-direction: column; align-items: stretch; }
  .mc-cta { width: 100%; }
  .mc-siblings { font-size: 13px; }
  .mc-siblings .mc-back { display: none; }
}

/* ─── Movimiento (Motion System V1): estados, no decoración ────── */
html.has-motion .mc-r { animation: reveal 900ms var(--ease-reveal) backwards; animation-delay: calc(200ms + var(--i, 0) * 180ms); }
html.has-motion .mc-threshold__halo svg { animation: breath var(--t-breath) var(--ease-breath) infinite 1.4s; transform-origin: center; }
html.has-motion .mc-option::before { transition: transform 500ms var(--ease-reveal), opacity 500ms var(--ease-reveal); }
html.has-motion .mc-option__sub { transition: opacity 500ms var(--ease-reveal) 120ms; } /* la altura cambia sin animarse: solo opacidad */
html.has-motion .mc-option__name, html.has-motion .mc-option { transition: color 300ms, background-color 300ms, border-color 300ms; }
html.has-motion .mc-cta { transition: transform 200ms var(--ease-reveal); }
html.has-motion .mc-cta:hover { transform: scale(1.02); }
html.has-motion .mc-cta:active { transform: scale(0.98); }
html.has-motion .mc-cta::after { animation: cta-breath var(--t-breath) var(--ease-breath) infinite 2.4s; }
/* Cambio de clase: PAUSE breve (el lienzo se apaga) y la nueva entra con su propio REVEAL. */
html.has-motion .mc-frame .stage { transition: opacity 220ms var(--ease-reveal); }
.mc-frame.is-switching .stage { opacity: 0; }
html.has-motion .mc-exit { transition: opacity 400ms, visibility 0s linear 400ms; }
html.has-motion body.show-exit .mc-exit { transition: opacity 400ms, visibility 0s; }
@keyframes cta-breath {
  0%, 100% { opacity: 0; transform: scale(0.98); }
  50%      { opacity: 1; transform: scale(1.02); }
}

/* ─── Puerta de acceso (versión publicada dentro de la Biblioteca) ───
   Mismo umbral que el portal: sin tarjetas, un solo CTA dorado. */
.mc-gate {
  max-width: 560px; margin: 0 auto; padding: clamp(24px, 8vh, 80px) clamp(16px, 4vw, 64px) 64px;
  text-align: center;
}
.mc-gate[hidden] { display: none !important; }
/* Sin eyebrow sobre el título (DESIGN.md): la vuelta a la Biblioteca hace de ruta. */
.mc-gate__nav { padding: 28px clamp(16px, 4vw, 64px) 0; }
.mc-gate__nav[hidden] { display: none !important; }
.mc-gate__home { display: inline-block; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-quiet); text-decoration: none; }
.mc-gate__home:hover, .mc-gate__home:focus-visible { color: var(--cream); }
.mc-gate h1 { font-family: var(--font-editorial); font-weight: 400; font-size: clamp(2.4rem, 6vw, 3.6rem); line-height: 1.04; margin: 0; }
.mc-gate__lead { font-family: var(--font-editorial); font-style: italic; font-size: 1.2rem; color: var(--ink-muted); margin: 16px 0 36px; }
.mc-gate__list { list-style: none; margin: 0 0 36px; padding: 0; text-align: left; }
.mc-gate__list li { display: grid; grid-template-columns: 44px 1fr; align-items: baseline; padding: 14px 0; border-top: 1px solid var(--rule); font-family: var(--font-editorial); font-size: 1.25rem; }
.mc-gate__list li:last-child { border-bottom: 1px solid var(--rule); }
.mc-gate__list span { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.14em; color: var(--gold); }
.mc-gate__price { font-size: 15px; color: var(--ink-muted); margin: 0 0 24px; }
.mc-gate__note { font-size: 14px; color: var(--ink-quiet); margin: 18px 0 0; }
.mc-gate__back { display: inline-block; margin-top: 28px; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-quiet); text-decoration: none; }
.mc-gate__back:hover, .mc-gate__back:focus-visible { color: var(--cream); }
.mc-portal[hidden] { display: none !important; }
/* Las teclas de facilitador solo se anuncian a quien recibe esas capas. */
.mc-keys--admin { display: none; }
body.mc-admin .mc-keys--admin { display: block; }
body.mc-admin .mc-keys--alumno { display: none; }