/* board.css — estilo del cuaderno de celdas de la lección (Capacita).
   Soberano, sin CDN. Usa las variables de marca (--brand-*) del shell. */

:root {
  --bd-border: #e7e9ee;
  --bd-soft: #f6f8fa;
  --bd-text: var(--brand-text, #1f2937);
  --bd-muted: var(--brand-muted, #6b7280);
  --bd-primary: var(--brand-primary, #1F7A5C);
}

.board-wrap { max-width: 820px; margin: 0 auto; }

#cell-board { display: block; }

/* ── Tarjeta de celda ──────────────────────────────────────────── */
.cell {
  position: relative;
  background: #fff;
  border: 1px solid var(--bd-border);
  border-radius: 16px;
  padding: 18px 20px;
  margin: 0 0 16px;
  box-shadow: 0 1px 2px rgba(16, 24, 40, .04);
}

/* Texto corrido: las celdas de explicación (concept) fluyen como un documento —
   sin tarjeta, sin borde, sin rótulo "Celda N". El salto entre párrafos casi no se nota. */
.cell-flow {
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  padding: 0 2px;
  margin: 0 0 2px;
}
.cell-flow .cell-doc p { margin: 0 0 13px; }

/* Capa de edición (admin): controles ocultos que aparecen SOLO al pasar el mouse sobre la
   celda. El estudiante nunca los ve; el lector queda limpio. */
.cell-admin {
  position: absolute; top: 8px; right: 8px; z-index: 4;
  display: flex; gap: 6px;
  opacity: 0; transform: translateY(-3px); pointer-events: none;
  transition: opacity .14s ease, transform .14s ease;
}
.cell:hover > .cell-admin, .cell-admin:focus-within {
  opacity: 1; transform: none; pointer-events: auto;
}
.cell-admin .cell-edit {
  background: #fff; border: 1px solid var(--bd-border);
  box-shadow: 0 2px 8px rgba(16, 24, 40, .12);
  font-size: 12px; padding: 5px 11px; color: var(--bd-muted);
}
.cell-admin .cell-edit:hover { color: var(--bd-text); background: var(--bd-soft); }

/* ── Banner de sección (hero ancho wordless al inicio de la clase) ──────────── */
.lesson-banner { position: relative; margin: 12px 0 18px; }
.lesson-banner img {
  width: 100%; height: auto; max-height: 280px; object-fit: cover;
  border-radius: 16px; display: block;
}

/* ── Impresión → PDF: solo la clase, sin chrome ────────────────────────────── */
@media print {
  nav, header, footer, .public-footer, .site-footer, .composer, .chips,
  #cardsbox, #quizbox, .cell-admin, .cell-media, .edu-float, .cell-theory {
    display: none !important;
  }
  body { background: #fff !important; }
  .board-wrap { max-width: 100%; }
  .cell { break-inside: avoid; box-shadow: none; border-color: #e3e6ea; }
  .ig-card, .ig-icon { box-shadow: none; }
  a { color: inherit; text-decoration: none; }
}

/* Cabecera de lección (label + reproducir todo) */
.cell-theory {
  background: color-mix(in srgb, var(--bd-primary) 6%, #fff);
  border-color: color-mix(in srgb, var(--bd-primary) 22%, #fff);
}

/* ── Cabecera de la celda: "Celda N" + acciones (discretas) ─────── */
.cell-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.cell-n {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--bd-muted);
}

/* Botones pequeños tipo "pill" (Escuchar, Edu en video, Editar…) */
.cell-edit {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #fff;
  color: var(--bd-text);
  border: 1px solid var(--bd-border);
  border-radius: 999px;
  padding: 6px 13px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  line-height: 1;
  transition: background .15s, border-color .15s, color .15s;
}
.cell-edit:hover { background: var(--bd-soft); border-color: #d4d8df; }
.cell-edit:disabled { opacity: .6; cursor: default; }
.cell-edit svg { flex: 0 0 auto; }
/* "Editar y regenerar" en la cabecera: aún más discreto */
.cell-head .cell-edit { margin-left: auto; color: var(--bd-muted); border-color: transparent; padding: 4px 8px; }
.cell-head .cell-edit:hover { color: var(--bd-text); background: var(--bd-soft); }

/* Fila de media por celda (Escuchar + Edu en video) */
.cell-media { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.cell-media .cell-edit { color: var(--bd-primary); border-color: color-mix(in srgb, var(--bd-primary) 28%, #fff); }
.cell-media .cell-edit:hover { background: color-mix(in srgb, var(--bd-primary) 8%, #fff); }

/* ── Contenido de la celda ─────────────────────────────────────── */
.cell-art { color: var(--bd-text); font-size: 15px; }
.cell-doc p { margin: 0 0 10px; line-height: 1.7; }
.cell-doc p:last-child { margin-bottom: 0; }
.cell-doc h2, .cell-doc h3, .cell-doc h4 {
  margin: 4px 0 8px;
  color: var(--bd-text);
  line-height: 1.3;
}
.cell-doc h2 { font-size: 1.15rem; }
.cell-doc h3 { font-size: 1.05rem; }
.cell-doc h4 { font-size: .98rem; }
.cell-doc ul { margin: 6px 0 10px; padding-left: 20px; }
.cell-doc li { margin: 5px 0; line-height: 1.55; }
.cell-doc strong { color: var(--bd-text); }
.cell-doc code { background: var(--bd-soft); border-radius: 5px; padding: 1px 5px; font-size: 13px; }
.cell-doc pre { background: #0f172a; color: #e2e8f0; border-radius: 10px; padding: 12px 14px; overflow-x: auto; font-size: 13px; }

/* Título sobre un artefacto (gráfica/diagrama/imagen) */
.cell-prompt {
  font-size: 15px;
  font-weight: 700;
  color: var(--bd-text);
  margin: 0 0 12px;
}

/* Gráfica */
.cell-chartwrap { margin: 4px 0; }
.cell-chart { max-width: 100%; height: auto; display: block; }
.c-lab { font-size: 14px; }
.c-val { font-size: 13px; }

/* Tabla */
.cell-art table { width: 100%; border-collapse: collapse; font-size: 14px; }
.cell-art th, .cell-art td { padding: 8px 11px; border-bottom: 1px solid var(--bd-border); text-align: left; }
.cell-art th { color: var(--bd-muted); font-weight: 700; }

/* Imagen / infografía + leyenda */
.cell-image img { border-radius: 12px; }
.cell-caption { color: var(--bd-text); }

/* ── Compositor (chips + textarea) ─────────────────────────────── */
.composer { margin: 18px 0 8px; }
.composer-hint { font-size: 13px; color: var(--bd-muted); margin: 0 0 10px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.chip {
  background: var(--bd-soft);
  border: 1px solid var(--bd-border);
  border-radius: 999px;
  padding: 7px 13px;
  font-size: 13px;
  color: var(--bd-text);
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.chip:hover { background: #eef1f4; border-color: #d4d8df; }
.composer-input {
  width: 100%;
  border: 1px solid var(--bd-border);
  border-radius: 12px;
  padding: 11px 13px;
  font-size: 14px;
  font-family: inherit;
  box-sizing: border-box;
  resize: vertical;
}
.composer-input:focus { outline: none; border-color: var(--bd-primary); }
/* Botones del compositor: "Preguntar" (primario) y "Practiquemos" (secundario). */
.composer-go, .composer-practice {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 10px 20px;
  margin: 10px 8px 0 0;
  font-size: 14px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .15s, border-color .15s, opacity .15s;
}
.composer-go {
  background: var(--bd-primary);
  color: #fff;
}
.composer-go:hover { background: color-mix(in srgb, var(--bd-primary) 88%, #000); }
.composer-practice {
  background: #fff;
  color: var(--bd-primary);
  border-color: color-mix(in srgb, var(--bd-primary) 28%, #fff);
}
.composer-practice:hover { background: var(--bd-soft); border-color: var(--bd-primary); }
.composer-go:disabled, .composer-practice:disabled { opacity: .6; cursor: default; }

/* ── Feedback por bloque (👍/👎 + comentario opcional) ─────────── */
.cell-fb {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  margin-top: 14px; padding-top: 10px; border-top: 1px dashed var(--bd-border);
}
.cell-fb-q { font-size: 12.5px; color: var(--bd-muted); }
.cell-fb-btn {
  border: 1px solid var(--bd-border); background: #fff; border-radius: 999px;
  padding: 3px 10px; font-size: 15px; line-height: 1.2; cursor: pointer;
  transition: background .15s, border-color .15s, transform .1s;
}
.cell-fb-btn:hover { background: var(--bd-soft); }
.cell-fb-btn.on { border-color: var(--bd-primary); background: color-mix(in srgb, var(--bd-primary) 12%, #fff); }
.cell-fb-box { flex: 1 1 100%; display: flex; gap: 8px; margin-top: 6px; }
.cell-fb-input {
  flex: 1 1 auto; border: 1px solid var(--bd-border); border-radius: 10px;
  padding: 8px 11px; font-size: 13.5px; font-family: inherit; box-sizing: border-box; resize: vertical;
}
.cell-fb-input:focus { outline: none; border-color: var(--bd-primary); }
.cell-fb-send {
  border: 0; background: var(--bd-primary); color: #fff; border-radius: 10px;
  padding: 8px 16px; font-size: 13.5px; font-weight: 700; cursor: pointer; white-space: nowrap;
}
.cell-fb-send:disabled { opacity: .6; cursor: default; }

/* ── Reproductor flotante de Edu (refinado) ────────────────────── */
.edu-float { transition: opacity .2s; }
.edu-float-cap::-webkit-scrollbar { width: 6px; }
.edu-float-cap::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }

@media (max-width: 600px) {
  .cell { padding: 15px 16px; border-radius: 14px; }
  .edu-float { right: 10px !important; bottom: 10px !important; width: 220px !important; }
}

/* Explicación que precede a un visual (diagrama/infografía) — "todo tiene explicación" */
.cell-explain { color: var(--bd-text); font-size: 14.5px; }

/* ── Infografía compuesta (ilustración FLUX + capa de texto HTML/SVG) ───────── */
.cell-infographic { margin: 2px 0; }
.ig-title {
  font-size: 1.08rem; font-weight: 800; text-align: center;
  color: var(--bd-primary); margin: 2px 0 16px; line-height: 1.3;
}
.ig-grid.ig-cols {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}
.ig-grid.ig-flow {
  display: flex; flex-wrap: wrap; align-items: stretch;
  justify-content: center; gap: 4px;
}
.ig-card {
  background: var(--bd-soft); border: 1px solid var(--bd-border);
  border-radius: 14px; padding: 14px 12px; text-align: center;
  display: flex; flex-direction: column; align-items: center;
}
.ig-flow .ig-card { flex: 1 1 150px; min-width: 138px; max-width: 200px; }
.ig-icon {
  width: 88px; height: 88px; object-fit: contain;
  border-radius: 12px; margin-bottom: 8px; background: #fff;
}
.ig-ph { background: #e7ece9; }
.ig-label { font-weight: 800; color: var(--bd-text); font-size: 14.5px; margin-bottom: 4px; }
.ig-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 20px; height: 20px; margin-right: 6px; border-radius: 999px;
  background: var(--bd-primary); color: #fff; font-size: 11px; font-weight: 800;
}
.ig-desc { font-size: 12.5px; color: var(--bd-muted); line-height: 1.45; }
/* Conector entre pasos (flujo). Flecha SVG soberana, sin fuentes externas. */
.ig-arrow {
  align-self: center; width: 26px; height: 26px; flex: 0 0 auto;
  background: no-repeat center/20px url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F7A5C' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><path d='M5 12h14M13 6l6 6-6 6'/></svg>");
}
@media (max-width: 600px) {
  .ig-arrow { transform: rotate(90deg); }
}