/* ============================================================
 * mother-tongue.css — Estilos específicos de Mother Tongue
 *
 * Estilos para los campos NUEVOS no presentes en el scaffold:
 *   - verbos
 *   - frases
 *   - falsos-amigos
 *   - certificaciones
 *
 * Reusa variables CSS de styles.css (--oz-bg, --oz-accent, etc.)
 * ============================================================ */

/* ===== Campo VERBOS ===== */

.oz-verbos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.oz-verbo-card {
  display: block;
  padding: 18px;
  background: var(--oz-accent-subtle2);
  border: 1px solid var(--oz-border, rgba(255,255,255,0.06));
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  transition: transform .15s, border-color .15s, background .15s;
}
.oz-verbo-card:hover {
  transform: translateY(-2px);
  border-color: var(--oz-accent);
  background: var(--oz-accent-subtle);
}
.oz-verbo-card--done { border-left: 3px solid #10B981; }

.oz-verbo-card__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}
.oz-verbo-card__inf {
  margin: 0;
  font-size: 1.15rem;
  font-family: var(--oz-font-heading, inherit);
  color: var(--oz-text);
}
.oz-verbo-card__badge {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 2px 7px;
  border-radius: 3px;
  text-transform: uppercase;
}
.oz-verbo-card__badge--irregular { background: #DB2777; color: #fff; }
.oz-verbo-card__badge--regular   { background: #3B82F6; color: #fff; }

.oz-verbo-card__trad {
  margin: 0 0 8px 0;
  color: var(--oz-text-secondary);
  font-style: italic;
  font-size: 0.92rem;
}
.oz-verbo-card__forms {
  margin: 8px 0 0 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--oz-text-secondary);
}
.oz-verbo-card__forms code {
  background: rgba(14,165,233,0.12);
  color: #0EA5E9;
  padding: 1px 6px;
  border-radius: 3px;
}

/* Verbo detail */
.oz-verbo-detail {
  max-width: 760px;
  margin: 0 auto;
}
.oz-verbo-detail__header { margin-bottom: 24px; }
.oz-verbo-detail__title {
  margin: 0 0 8px 0;
  font-family: var(--oz-font-heading, inherit);
  font-size: 2.4rem;
  color: var(--oz-accent);
}
.oz-verbo-detail__trad {
  margin: 0 0 12px 0;
  color: var(--oz-text-secondary);
  font-style: italic;
  font-size: 1.1rem;
}
.oz-verbo-detail__meta {
  display: flex;
  gap: 10px;
  align-items: center;
}
.oz-verbo-detail__freq {
  font-size: 0.85rem;
  color: var(--oz-text-muted);
}

.oz-verbo-detail__section {
  margin: 28px 0;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--oz-border, rgba(255,255,255,0.06));
}
.oz-verbo-detail__section:last-child { border-bottom: none; }
.oz-verbo-detail__section h2 {
  font-family: var(--oz-font-heading, inherit);
  font-size: 1.2rem;
  margin: 0 0 14px 0;
  color: var(--oz-accent);
}

.oz-verbo-tables {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
@media (max-width: 600px) {
  .oz-verbo-tables { grid-template-columns: 1fr; }
}
.oz-verbo-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--oz-accent-subtle2);
  border-radius: 6px;
  overflow: hidden;
}
.oz-verbo-table caption {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 8px;
  background: var(--oz-accent-subtle);
  color: var(--oz-text);
}
.oz-verbo-table th, .oz-verbo-table td {
  padding: 6px 12px;
  text-align: left;
  border-bottom: 1px solid var(--oz-border, rgba(255,255,255,0.06));
}
.oz-verbo-table th {
  width: 40%;
  font-weight: 500;
  color: var(--oz-text-secondary);
  font-size: 0.9rem;
}
.oz-verbo-table tr:last-child td,
.oz-verbo-table tr:last-child th { border-bottom: none; }
.oz-verbo-table code {
  font-family: 'JetBrains Mono', monospace;
  color: #0EA5E9;
}

.oz-verbo-forms-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 18px;
  margin: 12px 0 0 0;
}
.oz-verbo-forms-list dt {
  font-weight: 500;
  color: var(--oz-text-secondary);
}
.oz-verbo-forms-list dd {
  margin: 0;
}

.oz-verbo-examples {
  list-style: none;
  padding: 0;
}
.oz-verbo-examples li {
  padding: 8px 12px;
  margin-bottom: 6px;
  background: var(--oz-accent-subtle2);
  border-left: 3px solid #0EA5E9;
  border-radius: 0 4px 4px 0;
  font-style: italic;
}


/* ===== Campo FRASES ===== */

.oz-frases-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}
.oz-frase-card {
  display: block;
  padding: 18px;
  background: var(--oz-accent-subtle2);
  border: 1px solid var(--oz-border, rgba(255,255,255,0.06));
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  transition: transform .15s, border-color .15s, background .15s;
}
.oz-frase-card:hover {
  transform: translateY(-2px);
  border-color: #8B5CF6;
  background: var(--oz-accent-subtle);
}
.oz-frase-card--done { border-left: 3px solid #10B981; }

.oz-frase-card__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.oz-frase-card__expr {
  margin: 0;
  font-family: var(--oz-font-heading, inherit);
  font-size: 1.15rem;
  color: #8B5CF6;
  font-style: italic;
}
.oz-frase-card__reg {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 2px 8px;
  border-radius: 3px;
  color: #fff;
  text-transform: uppercase;
}
.oz-frase-card__lit {
  margin: 4px 0;
  color: var(--oz-text-muted);
  font-size: 0.85rem;
}
.oz-frase-card__sig {
  margin: 6px 0;
  color: var(--oz-text);
}
.oz-frase-card__eq {
  margin: 8px 0 0 0;
  color: var(--oz-text-secondary);
  font-size: 0.9rem;
}

.oz-frase-detail {
  max-width: 720px;
  margin: 0 auto;
}
.oz-frase-detail__header { margin-bottom: 24px; }
.oz-frase-detail__title {
  margin: 0 0 10px 0;
  font-family: var(--oz-font-heading, inherit);
  font-size: 2.4rem;
  color: #8B5CF6;
  font-style: italic;
}
.oz-frase-detail__meta {
  display: flex;
  gap: 10px;
  align-items: center;
}
.oz-frase-detail__cat {
  font-size: 0.85rem;
  color: var(--oz-text-muted);
}
.oz-frase-detail__section {
  margin: 24px 0;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--oz-border, rgba(255,255,255,0.06));
}
.oz-frase-detail__section:last-child { border-bottom: none; }
.oz-frase-detail__section h2 {
  font-family: var(--oz-font-heading, inherit);
  font-size: 1.1rem;
  margin: 0 0 10px 0;
  color: #8B5CF6;
}
.oz-frase-detail__example p {
  padding: 12px 16px;
  background: rgba(139,92,246,0.08);
  border-left: 3px solid #8B5CF6;
  border-radius: 0 4px 4px 0;
  font-style: italic;
}


/* ===== Campo FALSOS AMIGOS ===== */

.oz-fa-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
  margin-top: 24px;
}
.oz-fa-card {
  display: block;
  padding: 18px;
  background: var(--oz-accent-subtle2);
  border: 1px solid var(--oz-border, rgba(255,255,255,0.06));
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  transition: transform .15s, border-color .15s, background .15s;
}
.oz-fa-card:hover {
  transform: translateY(-2px);
  border-color: #EF4444;
  background: rgba(239,68,68,0.08);
}
.oz-fa-card--done { border-left: 3px solid #10B981; }

.oz-fa-card__pair {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.oz-fa-card__en {
  font-family: var(--oz-font-heading, inherit);
  font-size: 1.15rem;
  font-weight: 600;
  color: #EF4444;
}
.oz-fa-card__arrow {
  color: #EF4444;
  font-size: 1.2rem;
  font-weight: 700;
}
.oz-fa-card__es {
  font-size: 1rem;
  color: var(--oz-text-muted);
  text-decoration: line-through;
  text-decoration-color: rgba(239,68,68,0.5);
}
.oz-fa-card__real {
  margin: 0;
  color: var(--oz-text);
  font-size: 0.9rem;
}
.oz-fa-card__real strong { color: #10B981; }

.oz-fa-detail {
  max-width: 760px;
  margin: 0 auto;
}
.oz-fa-detail__header { margin-bottom: 24px; }
.oz-fa-detail__title {
  margin: 0;
  font-family: var(--oz-font-heading, inherit);
  font-size: 2.4rem;
  color: #EF4444;
}

.oz-fa-detail__pair {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: stretch;
  gap: 12px;
  margin: 28px 0;
}
.oz-fa-detail__col {
  padding: 24px 18px;
  border-radius: 8px;
  text-align: center;
}
.oz-fa-detail__col--wrong {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.3);
}
.oz-fa-detail__col--right {
  background: rgba(16,185,129,0.08);
  border: 1px solid rgba(16,185,129,0.3);
}
.oz-fa-detail__col-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--oz-text-muted);
  margin-bottom: 8px;
}
.oz-fa-detail__col-word {
  font-family: var(--oz-font-heading, inherit);
  font-size: 1.4rem;
  font-weight: 600;
}
.oz-fa-detail__col--wrong .oz-fa-detail__col-word {
  color: #EF4444;
  text-decoration: line-through;
  text-decoration-thickness: 2px;
}
.oz-fa-detail__col--right .oz-fa-detail__col-word { color: #10B981; }
.oz-fa-detail__divider {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  color: #EF4444;
}
@media (max-width: 600px) {
  .oz-fa-detail__pair { grid-template-columns: 1fr; }
  .oz-fa-detail__divider { padding: 8px; }
}

.oz-fa-detail__section {
  margin: 20px 0;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--oz-border, rgba(255,255,255,0.06));
}
.oz-fa-detail__section:last-child { border-bottom: none; }
.oz-fa-detail__section h2 {
  font-family: var(--oz-font-heading, inherit);
  font-size: 1.1rem;
  margin: 0 0 10px 0;
  color: #EF4444;
}
.oz-fa-detail__example {
  padding: 10px 14px;
  border-left: 3px solid;
  border-radius: 0 4px 4px 0;
}
.oz-fa-detail__example--ok  { background: rgba(16,185,129,0.08); border-color: #10B981; }
.oz-fa-detail__example--bad { background: rgba(239,68,68,0.08); border-color: #EF4444; }


/* ===== Campo CERTIFICACIONES ===== */

.oz-cert-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
  margin-top: 24px;
}
.oz-cert-card {
  display: block;
  padding: 20px;
  background: var(--oz-accent-subtle2);
  border: 1px solid var(--oz-border, rgba(255,255,255,0.06));
  border-radius: 10px;
  text-decoration: none;
  color: inherit;
  transition: transform .15s, border-color .15s, background .15s;
}
.oz-cert-card:hover {
  transform: translateY(-2px);
  border-color: #A855F7;
}
.oz-cert-card--aprobado {
  background: linear-gradient(135deg, rgba(168,85,247,0.12), rgba(168,85,247,0.04));
  border-color: rgba(168,85,247,0.4);
}
.oz-cert-card--bloqueado {
  opacity: 0.6;
}
.oz-cert-card--disponible {
  border-color: rgba(168,85,247,0.3);
}

.oz-cert-card__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.oz-cert-card__codigo {
  font-family: var(--oz-font-heading, inherit);
  font-size: 2.4rem;
  font-weight: 700;
  color: #A855F7;
  line-height: 1;
}
.oz-cert-card__state {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 9px;
  border-radius: 3px;
  background: var(--oz-accent-subtle);
  color: var(--oz-text-secondary);
}
.oz-cert-card--aprobado .oz-cert-card__state {
  background: #A855F7;
  color: #fff;
}
.oz-cert-card__nombre {
  margin: 0 0 6px 0;
  font-family: var(--oz-font-heading, inherit);
  font-size: 1.2rem;
}
.oz-cert-card__desc {
  margin: 0 0 14px 0;
  color: var(--oz-text-secondary);
  font-size: 0.9rem;
  line-height: 1.4;
}
.oz-cert-card__badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
}
.oz-cert-card__medal { font-size: 1.3rem; }
.oz-cert-card__action {
  color: #A855F7;
  font-weight: 600;
  font-size: 0.92rem;
}

.oz-cert-mini-checklist {
  list-style: none;
  padding: 0;
  margin: 8px 0 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.oz-cert-mini-checklist li {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 3px;
  background: var(--oz-accent-subtle2);
  border: 1px solid var(--oz-border, rgba(255,255,255,0.06));
}
.oz-cert-mini-checklist li.ok {
  border-color: rgba(16,185,129,0.4);
  color: #10B981;
}
.oz-cert-mini-checklist li.pending {
  color: var(--oz-text-muted);
}

/* Cert detail */
.oz-cert-detail {
  max-width: 800px;
  margin: 0 auto;
}
.oz-cert-detail__hero {
  text-align: center;
  padding: 32px 0;
  border-bottom: 1px solid var(--oz-border, rgba(255,255,255,0.06));
  margin-bottom: 28px;
}
.oz-cert-detail__codigo {
  font-family: var(--oz-font-heading, inherit);
  font-size: 4.5rem;
  font-weight: 700;
  color: #A855F7;
  line-height: 1;
  margin-bottom: 8px;
}
.oz-cert-detail__nombre {
  margin: 8px 0;
  font-family: var(--oz-font-heading, inherit);
  font-size: 1.6rem;
}
.oz-cert-detail__desc {
  max-width: 580px;
  margin: 12px auto 0;
  color: var(--oz-text-secondary);
  line-height: 1.6;
}

.oz-cert-detail__section {
  margin: 28px 0;
}
.oz-cert-detail__section h2 {
  font-family: var(--oz-font-heading, inherit);
  font-size: 1.25rem;
  margin: 0 0 14px 0;
  color: #A855F7;
}

.oz-cert-detail__aprobado {
  background: linear-gradient(135deg, rgba(168,85,247,0.12), rgba(168,85,247,0.04));
  padding: 20px;
  border-radius: 8px;
  border: 1px solid rgba(168,85,247,0.3);
}
.oz-cert-detail__ready {
  color: #10B981;
  font-weight: 500;
}
.oz-cert-detail__notready {
  color: var(--oz-text-secondary);
}

.oz-cert-checklist {
  list-style: none;
  padding: 0;
  margin: 0;
}
.oz-cert-check {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  margin-bottom: 8px;
  background: var(--oz-accent-subtle2);
  border: 1px solid var(--oz-border, rgba(255,255,255,0.06));
  border-radius: 6px;
}
.oz-cert-check.ok {
  background: rgba(16,185,129,0.06);
  border-color: rgba(16,185,129,0.3);
}
.oz-cert-check.pending {
  border-color: rgba(168,85,247,0.2);
}
.oz-cert-check__icon {
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--oz-accent-subtle);
  font-weight: 700;
}
.oz-cert-check.ok .oz-cert-check__icon {
  background: #10B981;
  color: #fff;
}
.oz-cert-check__label {
  flex: 1;
  color: var(--oz-text);
}
.oz-cert-check__missing {
  color: var(--oz-text-muted);
  font-size: 0.85rem;
  font-family: 'JetBrains Mono', monospace;
}
.oz-cert-check__go {
  font-size: 0.85rem;
  color: #A855F7;
  text-decoration: none;
  white-space: nowrap;
}
.oz-cert-check__go:hover { text-decoration: underline; }

.oz-cert-partes-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--oz-accent-subtle2);
  border-radius: 6px;
  overflow: hidden;
}
.oz-cert-partes-table th,
.oz-cert-partes-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--oz-border, rgba(255,255,255,0.06));
}
.oz-cert-partes-table th {
  font-weight: 500;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--oz-text-secondary);
  background: var(--oz-accent-subtle);
}
.oz-cert-partes-table tr:last-child td { border-bottom: none; }

.oz-cert-detail__umbral {
  margin-top: 14px;
  color: var(--oz-text-secondary);
  font-size: 0.92rem;
}

.oz-cert-detail__cta {
  text-align: center;
  padding-top: 16px;
}
.oz-cert-btn {
  display: inline-block;
  text-decoration: none;
  padding: 14px 28px;
  border: none;
  background: #A855F7;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: background .15s;
}
.oz-cert-btn:hover { background: #9333EA; }
.oz-cert-btn--disabled {
  background: var(--oz-text-muted);
  cursor: not-allowed;
  opacity: 0.6;
}
.oz-cert-detail__note {
  margin-top: 14px;
  color: var(--oz-text-muted);
  font-size: 0.85rem;
  font-style: italic;
}
.oz-cert-detail__note code {
  font-family: 'JetBrains Mono', monospace;
  background: var(--oz-accent-subtle);
  padding: 1px 6px;
  border-radius: 3px;
}

.oz-cert-detail__partes {
  list-style: none;
  padding: 0;
  margin: 12px 0 0 0;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.oz-cert-detail__partes li {
  font-size: 0.92rem;
}


/* ===== Landing de libro: separar el hero (card grande) de la rejilla ===== */
.oz-landing__primary-card {
  margin-bottom: 20px;
}

/* Stats dentro de la card grande de Práctica */


/* ===== Portada: cards de entrada a cada libro ===== */
.oz-books {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 28px;
}
@media (max-width: 680px) { .oz-books { grid-template-columns: 1fr; } }

.oz-book-card {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 26px;
  background: var(--oz-accent-subtle2);
  border: 1px solid var(--oz-border, rgba(255,255,255,0.08));
  border-radius: 14px;
  text-decoration: none;
  color: inherit;
  transition: transform .15s, border-color .15s, background .15s;
}
.oz-book-card:hover {
  transform: translateY(-3px);
  border-color: var(--oz-accent, #7F1D1D);
  background: var(--oz-accent-subtle);
}
.oz-book-card__icon { font-size: 2.6rem; line-height: 1; flex-shrink: 0; }
.oz-book-card__body { flex: 1; }
.oz-book-card__title {
  margin: 0 0 6px 0;
  font-family: var(--oz-font-heading, inherit);
  font-size: 1.6rem;
  color: var(--oz-text);
}
.oz-book-card__desc {
  margin: 0 0 12px 0;
  color: var(--oz-text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}
.oz-book-card__fields {
  font-size: 0.82rem;
  color: var(--oz-text-muted);
  letter-spacing: 0.01em;
}
.oz-book-card__arrow {
  font-size: 1.4rem;
  color: var(--oz-accent, #7F1D1D);
  align-self: center;
  flex-shrink: 0;
}
.oz-landing__grid3--extra { margin-top: 4px; }


/* ===== Sidebar: cabeceras de grupo (Student's Book / Workbook) ===== */
.oz-sidebar__section--group {
  margin-top: 14px;
}
.oz-sidebar__group-title {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--oz-text-muted, #8a8278);
  padding: 12px 12px 4px;
  margin-bottom: 2px;
  border-top: 1px solid var(--oz-border, rgba(255,255,255,0.06));
  text-decoration: none;
  transition: color .12s;
}
.oz-sidebar__group-title:hover { color: var(--oz-accent, #7F1D1D); }
.oz-sidebar__group-title.active { color: var(--oz-accent, #7F1D1D); }
.oz-sidebar__section--extra {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px solid var(--oz-border, rgba(255,255,255,0.06));
}


/* ===== Campo VOCABULARIO ===== */

/* Level filter bar — compartido entre vocab, verbos, glosario, frases, falsos-amigos */
.oz-vocab-level-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0 16px;
}

/* Toggle «Solo requisitos» — pill a la derecha de la barra de niveles */
.oz-req-toggle {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px 5px 9px;
  border-radius: 999px;
  border: 1px solid var(--oz-border, rgba(127,127,127,0.3));
  background: var(--oz-surface, rgba(127,127,127,0.06));
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--oz-text-secondary, #888);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  transition: background .15s, border-color .15s, color .15s;
}
.oz-req-toggle:hover {
  border-color: var(--oz-accent, #06B6D4);
  color: var(--oz-text-primary, #222);
}
.oz-req-toggle__cb { position: absolute; opacity: 0; width: 0; height: 0; pointer-events: none; }
.oz-req-toggle__box {
  display: inline-flex; align-items: center; justify-content: center;
  width: 15px; height: 15px; border-radius: 4px;
  border: 1.5px solid currentColor;
  font-size: 10px; line-height: 1;
  transition: background .15s, border-color .15s, color .15s;
}
.oz-req-toggle--active {
  background: var(--oz-accent, #06B6D4);
  border-color: var(--oz-accent, #06B6D4);
  color: #fff;
}
.oz-req-toggle--active .oz-req-toggle__box {
  background: #fff;
  border-color: #fff;
  color: var(--oz-accent, #06B6D4);
}
.oz-req-toggle--active .oz-req-toggle__box::after { content: '\2713'; font-weight: 700; }

/* Variante primaria: el nivel es el filtro maestro, arriba de las categorías */
.oz-vocab-level-bar--primary {
  align-items: center;
  gap: 8px;
  margin: 20px 0 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--oz-border, rgba(255,255,255,0.08));
}
.oz-vocab-level-bar__label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--oz-text-secondary);
  margin-right: 4px;
}
.oz-vocab-level-bar--primary .oz-vocab-level-btn {
  padding: 7px 16px;
  font-size: 0.92rem;
}
.oz-vocab-level-btn__n {
  font-size: 0.72em;
  opacity: 0.65;
  font-weight: 500;
  margin-left: 2px;
}
.oz-vocab-level-bar--primary .oz-vocab-level-btn--active .oz-vocab-level-btn__n { opacity: 0.85; }

/* Tag de nivel CEFR sobre cards (verbos, glosario, frases, falsos-amigos) */
.oz-verbo-card__tags, .oz-glos-card__tags, .oz-frase-card__tags {
  display: flex;
  gap: 6px;
  align-items: center;
}
.oz-verbo-card__level, .oz-glos-card__level, .oz-frase-card__level, .oz-fa-card__level {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 2px 7px;
  border-radius: 3px;
  background: var(--oz-accent-subtle);
  color: var(--oz-accent, var(--oz-text-secondary));
  flex-shrink: 0;
}
.oz-fa-card__level {
  background: rgba(239,68,68,0.15);
  color: #EF4444;
}
.oz-glos-card__level {
  background: rgba(245,158,11,0.15);
  color: #F59E0B;
}
.oz-frase-card__level {
  background: rgba(139,92,246,0.15);
  color: #8B5CF6;
}
.oz-verbo-card__level {
  background: rgba(14,165,233,0.15);
  color: #0EA5E9;
}

.oz-vocab-level-btn {
  padding: 4px 12px;
  background: var(--oz-accent-subtle2);
  border: 1px solid var(--oz-border, rgba(255,255,255,0.06));
  border-radius: 14px;
  font-size: 0.78rem;
  font-family: inherit;
  color: var(--oz-text-secondary);
  cursor: pointer;
  transition: background .12s, color .12s;
}
.oz-vocab-level-btn:hover { background: var(--oz-accent-subtle); }
.oz-vocab-level-btn--active {
  background: #14B8A6;
  border-color: #14B8A6;
  color: #fff;
}

.oz-vocab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 16px;
}
.oz-vocab-card {
  display: block;
  padding: 16px;
  background: var(--oz-accent-subtle2);
  border: 1px solid var(--oz-border, rgba(255,255,255,0.06));
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  transition: transform .15s, border-color .15s, background .15s;
}
.oz-vocab-card:hover {
  transform: translateY(-2px);
  border-color: #14B8A6;
  background: rgba(20,184,166,0.06);
}
.oz-vocab-card--done { border-left: 3px solid #10B981; }

/* ── Badge «error»: ítems fallados en la práctica ─────────────────── */
.oz-error-badge {
  display: inline-block;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #fff;
  background: #DC2626;
  padding: 2px 7px;
  border-radius: 999px;
  line-height: 1.4;
  vertical-align: middle;
}
.oz-verbo-card--weak,
.oz-frase-card--weak,
.oz-fa-card--weak,
.oz-vocab-card--weak {
  border-left: 3px solid #DC2626;
}

/* Toggle «solo errores» (aparece solo si hay ítems fallados) */
.oz-weak-filter-row {
  margin: 0 0 14px;
}
.oz-weak-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #DC2626;
  background: rgba(220,38,38,0.07);
  border: 1px solid rgba(220,38,38,0.35);
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.oz-weak-filter-btn:hover {
  background: rgba(220,38,38,0.14);
}
.oz-weak-filter-btn--active {
  background: #DC2626;
  color: #fff;
  border-color: #DC2626;
}
.oz-weak-filter-btn--active .oz-error-badge {
  background: #fff;
  color: #DC2626;
}
.oz-weak-filter-btn__n {
  font-weight: 800;
  opacity: 0.85;
}

/* ── Profesor (motor de recomendación) ─────────────────────────────── */
.oz-profe-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
  margin-top: 14px;
}
.oz-profe-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  text-decoration: none;
  color: inherit;
  background: var(--oz-surface, #fff);
  border: 1px solid var(--oz-border, rgba(0,0,0,0.10));
  border-radius: 14px;
  padding: 16px 18px;
  transition: transform 0.12s, box-shadow 0.12s, border-color 0.12s;
}
.oz-profe-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.10);
  border-color: var(--oz-accent, #7F1D1D);
}
.oz-profe-card--primary {
  border-left: 4px solid var(--oz-accent, #7F1D1D);
  padding: 22px 24px;
  background: linear-gradient(180deg, rgba(127,29,29,0.05), transparent);
}
.oz-profe-card__icon {
  font-size: 1.7rem;
  line-height: 1;
  flex-shrink: 0;
}
.oz-profe-card--primary .oz-profe-card__icon { font-size: 2.3rem; }
.oz-profe-card__body { flex: 1; min-width: 0; }
.oz-profe-card__title {
  margin: 0 0 4px;
  font-size: 1.02rem;
  font-weight: 700;
}
.oz-profe-card--primary .oz-profe-card__title { font-size: 1.3rem; }
.oz-profe-card__reason {
  margin: 0 0 10px;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--oz-text-muted, #555);
}
.oz-profe-card__cta {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--oz-accent, #7F1D1D);
}
.oz-profe-empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--oz-text-muted, #555);
}
.oz-profe-empty__icon { font-size: 2.6rem; }
.oz-profe-empty__title { margin: 12px 0 6px; }
.oz-profe-empty__desc { max-width: 460px; margin: 0 auto; font-size: 0.9rem; line-height: 1.5; }

.oz-vocab-card__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 4px;
}
.oz-vocab-card__word {
  margin: 0;
  font-family: var(--oz-font-heading, inherit);
  font-size: 1.2rem;
  color: #14B8A6;
  font-weight: 600;
}
.oz-vocab-card__level {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 2px 8px;
  border-radius: 3px;
  background: rgba(20,184,166,0.12);
  color: #14B8A6;
}
.oz-vocab-card__trans {
  margin: 0 0 8px 0;
  font-size: 0.95rem;
  color: var(--oz-text);
  font-style: italic;
}
.oz-vocab-card__cat {
  font-size: 0.8rem;
  color: var(--oz-text-muted);
}

/* Vocab detail */
.oz-vocab-detail {
  max-width: 720px;
  margin: 0 auto;
}
.oz-vocab-detail__header { margin-bottom: 24px; }
.oz-vocab-detail__title {
  margin: 0 0 12px 0;
  font-family: var(--oz-font-heading, inherit);
  font-size: 2.6rem;
  color: #14B8A6;
}
.oz-vocab-detail__meta {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.oz-vocab-detail__cat {
  font-size: 0.92rem;
  color: var(--oz-text-secondary);
}
.oz-vocab-detail__level {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: 3px;
  background: #14B8A6;
  color: #fff;
}

.oz-vocab-detail__section {
  margin: 24px 0;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--oz-border, rgba(255,255,255,0.06));
}
.oz-vocab-detail__section:last-child { border-bottom: none; }
.oz-vocab-detail__section h2 {
  font-family: var(--oz-font-heading, inherit);
  font-size: 1.1rem;
  margin: 0 0 10px 0;
  color: #14B8A6;
}

.oz-vocab-detail__translation {
  background: rgba(20,184,166,0.08);
  padding: 18px 22px;
  border-radius: 8px;
  border-left: 3px solid #14B8A6;
  border-bottom: none;
}
.oz-vocab-detail__label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--oz-text-muted);
  margin-bottom: 6px;
}
.oz-vocab-detail__big {
  font-family: var(--oz-font-heading, inherit);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--oz-text);
}

.oz-vocab-detail__example {
  padding: 12px 16px;
  background: var(--oz-accent-subtle2);
  border-left: 3px solid #14B8A6;
  border-radius: 0 4px 4px 0;
  font-style: italic;
  margin: 0;
}

/* ====================================================================
 * Notacion matematica (KaTeX)
 * El HTML de las fichas se escribe en LaTeX entre $...$ y $$...$$;
 * js/math.js lo renderiza antes del autolink.
 * ==================================================================== */

.katex {
  font-size: 1.08em;              /* KaTeX se ve pequeno junto a Inter */
  color: var(--oz-text);
}

/* Ecuacion en bloque: aire arriba y abajo, y scroll propio si es larga
   (en movil una integral con limites se sale de la pantalla). */
.katex-display {
  margin: 1.6em 0;
  padding: 4px 2px;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
}

.katex-display > .katex {
  font-size: 1.16em;
  white-space: nowrap;
}

/* Ecuacion destacada: la formula central de la ficha */
.ma-eq-key {
  margin: 1.8em 0;
  padding: 14px 18px;
  border-left: 3px solid var(--oz-accent);
  background: var(--oz-accent-subtle2, rgba(79, 70, 229, 0.06));
  border-radius: 0 6px 6px 0;
  overflow-x: auto;
}
.ma-eq-key .katex-display {
  margin: 0;
}
.ma-eq-key__label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--oz-text-muted);
  margin-bottom: 8px;
}

/* Ejemplo resuelto paso a paso */
.ma-ejemplo {
  margin: 1.6em 0;
  padding: 16px 18px;
  border: 1px solid var(--oz-border);
  border-radius: 8px;
  background: var(--oz-surface);
}
.ma-ejemplo__titulo {
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--oz-accent);
  margin: 0 0 10px;
}
.ma-ejemplo p:last-child { margin-bottom: 0; }

/* Aviso de error tipico dentro del contenido */
.ma-trampa {
  margin: 1.5em 0;
  padding: 14px 16px;
  border-left: 3px solid #EF4444;
  background: rgba(239, 68, 68, 0.07);
  border-radius: 0 6px 6px 0;
}
.ma-trampa__titulo {
  font-weight: 600;
  color: #EF4444;
  margin: 0 0 6px;
  font-size: 0.9rem;
}
.ma-trampa p:last-child { margin-bottom: 0; }

/* Guino de la espiral: "esto vuelve mas arriba" */
.ma-espiral {
  margin: 1.5em 0;
  padding: 12px 16px;
  border-left: 3px solid var(--oz-accent);
  background: transparent;
  font-style: italic;
  color: var(--oz-text-muted);
}

@media (max-width: 640px) {
  .katex { font-size: 1em; }
  .katex-display > .katex { font-size: 1.02em; }
  .ma-eq-key, .ma-ejemplo, .ma-trampa { padding-left: 12px; padding-right: 12px; }
}

/* ====================================================================
 * FÓRMULAS — el formulario, agrupado por lo que quieres calcular
 * ==================================================================== */

.ma-form-intro {
  color: var(--oz-text-secondary);
  margin: 0 0 2rem;
  font-size: 0.95rem;
}

.ma-form-grupo { margin-bottom: 2.6rem; }

.ma-form-grupo__titulo {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--oz-text-secondary);
  border-bottom: 1px solid var(--oz-border);
  padding-bottom: 8px;
  margin: 0 0 1.1rem;
}
.ma-form-grupo__titulo em {
  color: var(--oz-accent);
  font-style: normal;
}
.ma-form-grupo__n {
  margin-left: auto;
  font-size: 0.78rem;
  color: var(--oz-text-muted);
  font-weight: 400;
}

.ma-form-lista {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 14px;
}

.ma-form-card {
  display: block;
  padding: 18px 16px 12px;
  border: 1px solid var(--oz-border);
  border-radius: 10px;
  background: var(--oz-surface);
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;
}
.ma-form-card:hover {
  border-color: var(--oz-accent);
  transform: translateY(-2px);
}
.ma-form-card__tex {
  min-height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: auto;
  color: var(--oz-text);
}
.ma-form-card__tex .katex-display { margin: 0; }
.ma-form-card__pie {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--oz-border);
}
.ma-form-card__nombre {
  font-size: 0.86rem;
  color: var(--oz-text-secondary);
}
.ma-form-card--hecha { border-color: var(--oz-color-level1); }
.ma-form-card--hecha .ma-form-card__nombre { color: var(--oz-color-level1); }

/* Aún no alcanzado: se ve, pero atenuado. Gating blando. */
.ma-form-card--lejos { opacity: 0.62; }
.ma-form-card__aviso {
  margin-left: auto;
  font-size: 0.7rem;
  color: var(--oz-text-muted);
  white-space: nowrap;
  font-style: italic;
}

/* ---------- Ficha de fórmula ---------- */

.ma-form-ficha { max-width: 720px; }
.ma-form-ficha__head { margin: 1rem 0 1.4rem; }
.ma-form-ficha__grupo {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--oz-accent);
  margin-bottom: 6px;
}
.ma-form-ficha__head h1 {
  font-size: 1.6rem;
  margin: 0;
  color: var(--oz-text);
}
.ma-form-ficha__tex {
  padding: 22px 18px;
  margin-bottom: 1rem;
  border: 1px solid var(--oz-border);
  border-radius: 10px;
  background: var(--oz-surface);
  overflow-x: auto;
}
.ma-form-ficha__tex .katex-display { margin: 0; }
.ma-form-ficha__simbolos {
  font-size: 0.88rem;
  color: var(--oz-text-secondary);
  margin: 0 0 1.8rem;
  padding-left: 14px;
  border-left: 2px solid var(--oz-border);
}

.ma-form-bloque { margin-bottom: 1.5rem; }
.ma-form-bloque h3 {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--oz-text-muted);
  margin: 0 0 8px;
}
.ma-form-bloque p { margin: 0; line-height: 1.7; }

/* El «cuidado» es lo que separa una chuleta de una herramienta */
.ma-form-bloque--ojo {
  padding: 14px 16px;
  border-left: 3px solid #EF4444;
  background: rgba(239, 68, 68, 0.07);
  border-radius: 0 6px 6px 0;
}
.ma-form-bloque--ojo h3 { color: #EF4444; }

.ma-form-ficha__ejemplo { overflow-x: auto; }
.ma-form-ficha__ejemplo .katex-display { margin: 0.4em 0; }

.ma-form-ficha__pie {
  margin-top: 2rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--oz-border);
  font-size: 0.88rem;
  color: var(--oz-text-secondary);
}
.ma-form-ficha__origen { margin: 0 0 6px; }
.ma-form-ficha__nace { margin: 0; }
.ma-form-ficha__nace a { color: var(--oz-accent); }

@media (max-width: 640px) {
  .ma-form-lista { grid-template-columns: 1fr; }
}

/* Boton de «marcar como vista/controlado» al pie de una ficha del cuaderno.
   El .oz-glos-check heredado es un icono redondo de 32px dentro de una
   tarjeta: con texto dentro se estrangula. Aqui se convierte en boton de
   linea. Vale para todas las fichas del cuaderno, no solo formulas. */
.ma-form-ficha .oz-glos-check,
.ma-err-ficha .oz-glos-check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: auto;
  height: auto;
  margin-top: 1.6rem;
  padding: 10px 20px;
  border-radius: 8px;
  border: 1px solid var(--oz-border);
  background: var(--oz-surface);
  color: var(--oz-text-secondary);
  font-size: 0.88rem;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.ma-form-ficha .oz-glos-check:hover,
.ma-err-ficha .oz-glos-check:hover {
  border-color: var(--oz-accent);
  color: var(--oz-text);
}
.ma-form-ficha .oz-glos-check--active,
.ma-err-ficha .oz-glos-check--active {
  border-color: var(--oz-color-level1);
  color: var(--oz-color-level1);
  background: transparent;
}

/* ====================================================================
 * ÍNDICE INVERSO — «se usa en» y «este átomo introduce»
 * Se calculan, no se escriben.
 * ==================================================================== */

.ma-usos {
  margin-top: 2.4rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--oz-border);
}
.ma-usos__titulo,
.ma-intro__titulo {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--oz-text-muted);
  margin: 0 0 12px;
  font-weight: 600;
}
.ma-usos__lista {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.ma-usos__lista li {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 5px 11px;
  border: 1px solid var(--oz-border);
  border-radius: 999px;
  font-size: 0.84rem;
  background: var(--oz-surface);
}
.ma-usos__lista a { color: var(--oz-text-secondary); text-decoration: none; }
.ma-usos__lista li:hover { border-color: var(--oz-accent); }
.ma-usos__lista li:hover a { color: var(--oz-text); }
.ma-usos__tier {
  font-size: 0.68rem;
  color: var(--oz-text-muted);
}
.ma-usos__mas {
  border-style: dashed !important;
  color: var(--oz-text-muted);
}

/* «Este átomo introduce», en la ficha del átomo */
.ma-intro {
  margin: 2rem 0;
  padding: 16px 18px;
  border: 1px solid var(--oz-border);
  border-radius: 10px;
  background: var(--oz-surface);
}
.ma-intro__grupo {
  font-size: 0.88rem;
  line-height: 1.9;
  color: var(--oz-text-secondary);
}
.ma-intro__grupo + .ma-intro__grupo { margin-top: 6px; }
.ma-intro__etq {
  display: inline-block;
  min-width: 74px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--oz-text-muted);
}
.ma-intro__grupo a { color: var(--oz-accent); text-decoration: none; }
.ma-intro__grupo a:hover { text-decoration: underline; }

/* ==================================================================
   Errores tipicos — el campo se genera de los bloques .ma-trampa de
   los atomos (ver js/errores.js). Rojo, porque es el unico campo del
   cuaderno que avisa en vez de enseñar.
   ================================================================== */

.ma-err__intro {
  color: var(--oz-text-secondary);
  margin: 0 0 2rem;
  font-size: 0.95rem;
  max-width: 60ch;
}

.ma-err-grupo { margin-bottom: 2.4rem; }

.ma-err-grupo__titulo {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--oz-text-secondary);
  border-left: 3px solid var(--oz-border);
  padding: 2px 0 2px 10px;
  margin: 0 0 1rem;
}
.ma-err-grupo__n {
  margin-left: auto;
  font-size: 0.78rem;
  color: var(--oz-text-muted);
  font-weight: 400;
}

.ma-err-lista {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 12px;
}

.ma-err-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--oz-border);
  border-radius: 10px;
  background: var(--oz-surface);
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;
}
.ma-err-card:hover {
  border-color: #EF4444;
  transform: translateY(-2px);
}
.ma-err-card__marca {
  flex: 0 0 auto;
  color: #EF4444;
  font-weight: 700;
  line-height: 1.35;
}
.ma-err-card__cuerpo {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.ma-err-card__titulo {
  font-size: 0.92rem;
  color: var(--oz-text);
  line-height: 1.35;
}
/* Una sola linea: el nombre del atomo mas el aviso no deben partir la tarjeta. */
.ma-err-card__origen {
  font-size: 0.75rem;
  color: var(--oz-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ma-err-card__origen em { font-style: italic; }

.ma-err-card--visto { border-color: var(--oz-color-level1); }
.ma-err-card--visto .ma-err-card__marca { color: var(--oz-color-level1); }

/* Aun no alcanzado: se ve, pero atenuado. Mismo gating blando que formulas. */
.ma-err-card--lejos { opacity: 0.62; }
.ma-err-card__aviso {
  font-size: 0.7rem;
  color: var(--oz-text-muted);
  white-space: nowrap;
  font-style: italic;
}

/* ---------- Ficha de un error ---------- */

.ma-err-ficha { max-width: 720px; }
.ma-err-ficha__head { margin: 1rem 0 1.4rem; }
.ma-err-ficha__cat {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--oz-text-muted);
  margin-bottom: 6px;
}
.ma-err-ficha__head h1 {
  font-size: 1.5rem;
  margin: 0;
  color: var(--oz-text);
  line-height: 1.3;
}
.ma-err-ficha__marca { color: #EF4444; }

.ma-err-ficha__cuerpo {
  border-left: 3px solid #EF4444;
  padding: 2px 0 2px 16px;
  color: var(--oz-text);
  line-height: 1.7;
}
.ma-err-ficha__cuerpo p { margin: 0 0 0.9rem; }
.ma-err-ficha__cuerpo p:last-child { margin-bottom: 0; }

.ma-err-ficha__pie {
  margin: 1.6rem 0 1.2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--oz-border);
}
.ma-err-ficha__nace {
  font-size: 0.86rem;
  color: var(--oz-text-secondary);
  margin: 0;
}
.ma-err-ficha__nace a { color: var(--oz-accent); text-decoration: none; }
.ma-err-ficha__nace a:hover { text-decoration: underline; }

/* ==================================================================
   Resumen — la hoja de referencia por etapa. Se genera de los atomos
   (ver js/resumen.js): titular = «Lo que te llevas», el resto sale del
   indice inverso. Nada de esto se escribe a mano.
   ================================================================== */

/* ---------- Indice de las 8 etapas ---------- */

.ma-hoja-index__intro {
  color: var(--oz-text-secondary);
  margin: 0 0 2rem;
  font-size: 0.95rem;
  max-width: 62ch;
}

.ma-hoja-index__lista {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ma-hoja-card {
  display: flex;
  align-items: stretch;
  gap: 16px;
  padding: 16px 18px;
  border: 1px solid var(--oz-border);
  border-radius: 10px;
  background: var(--oz-surface);
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;
}
.ma-hoja-card:hover {
  border-color: var(--oz-accent);
  transform: translateY(-2px);
}
.ma-hoja-card__num {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--oz-border);
  border-radius: 50%;
  font-size: 0.9rem;
  color: var(--oz-text-muted);
}
.ma-hoja-card__cuerpo { flex: 1 1 auto; min-width: 0; }
.ma-hoja-card__titulo {
  font-size: 1.05rem;
  margin: 0 0 4px;
  color: var(--oz-text);
}
.ma-hoja-card__desc {
  font-size: 0.86rem;
  color: var(--oz-text-secondary);
  margin: 0 0 10px;
  line-height: 1.5;
}
.ma-hoja-card__pie {
  display: flex;
  align-items: center;
  gap: 12px;
}
.ma-hoja-card__barra {
  flex: 1 1 auto;
  max-width: 220px;
  height: 4px;
  background: var(--oz-border);
  border-radius: 2px;
  overflow: hidden;
}
.ma-hoja-card__relleno {
  height: 100%;
  background: var(--oz-color-level1);
}
.ma-hoja-card__estado {
  font-size: 0.74rem;
  color: var(--oz-text-muted);
}

/* Etapa sin un solo atomo escrito: honesta, no escondida. */
.ma-hoja-card--vacia { opacity: 0.5; }

/* ---------- La hoja ---------- */

.ma-hoja { max-width: 760px; }

.ma-hoja__head { margin: 1rem 0 1.4rem; }
.ma-hoja__etapa {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--oz-text-muted);
  margin-bottom: 6px;
}
.ma-hoja__head h1 { font-size: 1.7rem; margin: 0 0 8px; color: var(--oz-text); }
.ma-hoja__desc {
  color: var(--oz-text-secondary);
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
}

.ma-hoja__barra {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  margin-bottom: 1.6rem;
  border-top: 1px solid var(--oz-border);
  border-bottom: 1px solid var(--oz-border);
}
.ma-hoja__cuenta {
  font-size: 0.8rem;
  color: var(--oz-text-muted);
  margin-right: auto;
}
.ma-hoja__btn {
  padding: 6px 14px;
  border: 1px solid var(--oz-border);
  border-radius: 6px;
  background: transparent;
  color: var(--oz-text-secondary);
  font-family: inherit;
  font-size: 0.78rem;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.ma-hoja__btn:hover { border-color: var(--oz-accent); color: var(--oz-text); }
.ma-hoja__btn--on {
  border-color: var(--oz-accent);
  color: var(--oz-accent);
}

.ma-hoja__aviso {
  color: var(--oz-text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  max-width: 62ch;
}

.ma-hoja__cont { margin-bottom: 2.2rem; }
.ma-hoja__cont-titulo {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--oz-text-secondary);
  border-left: 3px solid var(--oz-border);
  padding: 2px 0 2px 10px;
  margin: 0 0 1rem;
}

.ma-hoja__atomo {
  padding: 0 0 1.1rem;
  margin-bottom: 1.1rem;
  border-bottom: 1px solid var(--oz-border);
}
.ma-hoja__atomo:last-child { border-bottom: none; margin-bottom: 0; }
.ma-hoja__atomo h3 {
  font-size: 1rem;
  margin: 0 0 6px;
  color: var(--oz-text);
}
.ma-hoja__atomo h3 a { color: inherit; text-decoration: none; }
.ma-hoja__atomo h3 a:hover { color: var(--oz-accent); }

.ma-hoja__titular {
  margin: 0 0 10px;
  color: var(--oz-text-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
}

.ma-hoja__fila {
  display: flex;
  gap: 10px;
  align-items: baseline;
  margin-top: 5px;
  font-size: 0.84rem;
}
.ma-hoja__etq {
  flex: 0 0 74px;
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--oz-text-muted);
}
.ma-hoja__vals { flex: 1 1 auto; min-width: 0; color: var(--oz-text-secondary); }
.ma-hoja__vals a { color: var(--oz-accent); text-decoration: none; }
.ma-hoja__vals a:hover { text-decoration: underline; }
.ma-hoja__fila--err .ma-hoja__vals a { color: #EF4444; }

/* Visible solo en modo «ver todo». */
.ma-hoja__atomo--sinleer { opacity: 0.6; }
.ma-hoja__sinleer-tag,
.ma-hoja__pendiente {
  font-size: 0.7rem;
  color: var(--oz-text-muted);
  font-style: italic;
  font-weight: 400;
}
.ma-hoja__atomo--pendiente { opacity: 0.4; }
.ma-hoja__atomo--pendiente h3 { font-weight: 400; }

/* ---------- Impresion: la hoja es lo unico que sale ---------- */

@media print {
  .oz-topbar, .oz-sidebar, .oz-sidebar-backdrop,
  .oz-back-link, .ma-hoja__barra { display: none !important; }
  .oz-main { margin: 0 !important; padding: 0 !important; }
  .ma-hoja { max-width: none; }
  .ma-hoja__atomo { break-inside: avoid; }
  .ma-hoja__cont-titulo { break-after: avoid; }
  a { text-decoration: none !important; }
}


/* ==================================================================
   Motor de preguntas (.oz__quiz-*)
   Portado desde el injectStyles() de examenes-atomos.js, que metia
   260 lineas de CSS desde JavaScript. Responder un test no es lo que
   le da identidad al campo, asi que esta parte se reutiliza tal cual;
   lo que se reescribio entero es la capa de arriba (js/hitos.js).
   ================================================================== */

.oz__quiz { max-width:720px; margin:0 auto; padding:10px 0 30px; }
.oz__quiz-header { display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:14px; }
.oz__quiz-title { font-size:.85rem; color:var(--text-secondary); }
.oz__quiz-level { font-size:.7rem; font-weight:700; padding:3px 10px; border-radius:6px; }
.oz__quiz-level--facil   { background:rgba(205,127,50,.18); color:#cd7f32; }
.oz__quiz-level--medio   { background:rgba(212,212,212,.18); color:#d4d4d4; }
.oz__quiz-level--dificil { background:rgba(255,184,77,.18); color:#ffb84d; }
.oz__quiz-level--repaso  { background:rgba(74,154,142,.2); color:#7ec5b9; }
.oz__quiz-progress { display:flex; align-items:center; gap:14px; margin-bottom:30px; }
.oz__quiz-bar { flex:1; height:8px; border-radius:4px; background:var(--border); overflow:hidden; }
.oz__quiz-bar-fill { height:100%; background:var(--oz-accent); transition:width .35s ease; }
.oz__quiz-counter { font-size:.85rem; color:var(--text-muted); font-variant-numeric:tabular-nums; min-width:42px; text-align:right; }
.oz__quiz-question { margin-bottom:22px; }
.oz__quiz-prompt-row { display:flex; align-items:flex-start; justify-content:space-between; gap:14px; margin:0 0 22px; }
.oz__quiz-prompt { font-size:1.15rem; font-weight:600; line-height:1.5; margin:0; color:var(--text-primary); flex:1; }
.oz__quiz-peso { flex-shrink:0; font-size:.75rem; font-weight:700; padding:4px 10px; border-radius:14px; background:color-mix(in srgb, var(--oz-accent) 18%, var(--bg-secondary)); color:var(--oz-accent); border:1px solid color-mix(in srgb, var(--oz-accent) 40%, var(--border)); white-space:nowrap; }
.oz__quiz-options { display:flex; flex-direction:column; gap:10px; margin-bottom:24px; }
.oz__quiz-opt { padding:14px 18px; border-radius:10px; background:var(--bg-secondary); border:2px solid var(--border); color:var(--text-primary); font-size:.98rem; text-align:left; cursor:pointer; transition:border-color .15s, background .15s, transform .1s; font-family:inherit; line-height:1.4; }
.oz__quiz-opt:hover:not(:disabled) { border-color:var(--oz-accent); transform:translateY(-1px); }
.oz__quiz-opt--selected { border-color:var(--oz-accent) !important; background:var(--oz-accent-subtle) !important; }
.oz__quiz-opt--confirm { text-align:center; font-weight:600; background:var(--oz-accent); color:#fff; border-color:var(--oz-accent); }
.oz__quiz-opt--confirm:hover:not(:disabled) { filter:brightness(1.1); }
.oz__quiz-opt:disabled { opacity:.7; cursor:not-allowed; }
.oz__quiz-hint { font-size:.85rem; color:var(--text-muted); margin:0 0 12px; }
.oz__quiz-sort { list-style:none; padding:0; margin:0 0 16px; display:flex; flex-direction:column; gap:8px; }
.oz__quiz-sort-item { display:flex; align-items:center; gap:12px; padding:14px 16px; border-radius:10px; background:var(--bg-secondary); border:2px solid var(--border); cursor:grab; user-select:none; transition:border-color .15s, transform .1s; }
.oz__quiz-sort-item:hover { border-color:var(--oz-accent); }
.oz__quiz-sort-item:active { cursor:grabbing; }
.oz__quiz-sort-item--dragging { opacity:.4; }
.oz__quiz-sort-handle { color:var(--text-muted); font-size:1.1rem; flex:0 0 auto; }
.oz__quiz-sort-text { flex:1; font-size:.95rem; }
.oz__quiz-sort-btns { flex:0 0 auto; display:flex; gap:4px; }
.oz__quiz-sort-move { width:34px; height:34px; border-radius:8px; border:1px solid var(--border); background:transparent; color:var(--text-secondary); font-size:.72rem; line-height:1; cursor:pointer; display:inline-flex; align-items:center; justify-content:center; padding:0; }
.oz__quiz-sort-move:hover { border-color:var(--oz-accent); color:var(--oz-accent); background:var(--bg-hover); }
.oz__quiz-sort-move:active { transform:scale(.92); }
.oz__quiz-textarea { width:100%; min-height:120px; padding:14px 16px; border-radius:10px; border:2px solid var(--border); background:var(--bg-secondary); color:var(--text-primary); font-family:inherit; font-size:16px; resize:vertical; box-sizing:border-box; margin-bottom:14px; }
.oz__quiz-textarea:focus { outline:none; border-color:var(--oz-accent); }
.oz__quiz-textarea:disabled { opacity:.7; }
.oz__quiz-dev { display:flex; flex-direction:column; gap:10px; }
.oz__quiz-dev-criterios-preview { background:var(--bg-secondary); border:1px solid var(--border); border-radius:8px; padding:10px 14px; font-size:.85rem; }
.oz__quiz-dev-criterios-title { font-weight:600; color:var(--text-muted); font-size:.75rem; text-transform:uppercase; letter-spacing:.5px; margin-bottom:6px; }
.oz__quiz-dev-criterios-preview ul { margin:0; padding-left:18px; color:var(--text-secondary); }
.oz__quiz-dev-criterios-preview li { margin-bottom:4px; line-height:1.45; }
.oz__quiz-dev-criterios-preview strong { color:var(--oz-accent); }
.oz__quiz-dev-exigencia { margin:10px 0 0; padding:8px 10px; font-size:.78rem; font-style:italic; color:var(--text-muted); background:color-mix(in srgb, var(--oz-accent) 5%, var(--bg-secondary)); border-left:2px solid var(--oz-accent); border-radius:0 4px 4px 0; }
.oz__quiz-dev-hint { font-size:.85rem; color:var(--text-secondary); padding:8px 12px; background:color-mix(in srgb, var(--oz-accent) 7%, var(--bg-secondary)); border-left:3px solid var(--oz-accent); border-radius:0 6px 6px 0; margin:0 0 4px; line-height:1.5; }
.oz__quiz-dev-hint strong { color:var(--oz-accent); }
.oz__quiz-dev-sent { font-size:.9rem; color:var(--oz-color-level1); padding:10px 14px; background:color-mix(in srgb, var(--oz-color-level1) 10%, var(--bg-secondary)); border:1px solid color-mix(in srgb, var(--oz-color-level1) 35%, var(--border)); border-radius:8px; margin:0; }
.oz__quiz-dev-textarea { min-height:180px; }
.oz__quiz-dev-textarea--short { min-height:100px; }
.oz__quiz-dev-meta { display:flex; justify-content:flex-end; margin-top:-8px; margin-bottom:6px; }
.oz__quiz-dev-counter { font-size:.78rem; color:var(--text-muted); }
.oz__quiz-dev-counter--ok { color:var(--oz-color-level1); font-weight:600; }
.oz__quiz-dev-loading { font-style:italic; color:var(--text-muted); padding:14px 0; text-align:center; }
.oz__quiz-dev-error { color:#dc2626; font-size:.9rem; padding:10px 14px; background:rgba(220,38,38,.08); border:1px solid rgba(220,38,38,.3); border-radius:8px; }
.oz__quiz-dev-result { margin-top:16px; padding:16px 18px; background:var(--bg-secondary); border:1px solid var(--border); border-radius:10px; }
.oz__quiz-dev-verdict { display:flex; justify-content:space-between; align-items:center; padding:10px 14px; border-radius:8px; margin-bottom:14px; font-size:.95rem; }
.oz__quiz-dev-verdict span { font-weight:700; letter-spacing:.5px; }
.oz__quiz-dev-verdict strong { font-size:1.1rem; }
.oz__quiz-dev-verdict--aprobado { background:rgba(16,185,129,.15); color:#10B981; }
.oz__quiz-dev-verdict--parcial { background:rgba(245,158,11,.15); color:#F59E0B; }
.oz__quiz-dev-verdict--suspendido { background:rgba(220,38,38,.15); color:#dc2626; }
.oz__quiz-dev-fb-general { font-size:.95rem; line-height:1.55; margin:0 0 14px; color:var(--text-primary); }
.oz__quiz-dev-criterios { list-style:none; padding:0; margin:0 0 14px; }
.oz__quiz-dev-cri { display:flex; gap:10px; padding:8px 0; border-bottom:1px solid var(--border); font-size:.88rem; line-height:1.45; }
.oz__quiz-dev-cri:last-child { border-bottom:none; }
.oz__quiz-dev-cri-icon { flex-shrink:0; width:22px; height:22px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-weight:700; font-size:.85rem; }
.oz__quiz-dev-cri--si .oz__quiz-dev-cri-icon { background:rgba(16,185,129,.2); color:#10B981; }
.oz__quiz-dev-cri--parcial .oz__quiz-dev-cri-icon { background:rgba(245,158,11,.2); color:#F59E0B; }
.oz__quiz-dev-cri--no .oz__quiz-dev-cri-icon { background:rgba(220,38,38,.2); color:#dc2626; }
.oz__quiz-dev-cri-txt { color:var(--text-secondary); }
.oz__quiz-dev-lists { margin-bottom:12px; font-size:.85rem; }
.oz__quiz-dev-lists strong { color:var(--text-primary); display:block; margin-bottom:4px; }
.oz__quiz-dev-lists ul { margin:0; padding-left:18px; color:var(--text-secondary); }
.oz__quiz-dev-lists li { margin-bottom:3px; line-height:1.4; }
.oz__quiz-dev-sugerencia { font-size:.85rem; padding:10px 12px; background:color-mix(in srgb, var(--oz-accent) 8%, var(--bg-secondary)); border-left:3px solid var(--oz-accent); border-radius:0 6px 6px 0; color:var(--text-secondary); line-height:1.5; margin:0; }
.oz__quiz-calc { display:flex; align-items:center; gap:10px; margin-bottom:14px; }
.oz__quiz-calc-input { flex:1; max-width:280px; padding:14px 16px; border-radius:10px; border:2px solid var(--border); background:var(--bg-secondary); color:var(--text-primary); font-family:inherit; font-size:1rem; }
.oz__quiz-calc-input:focus { outline:none; border-color:var(--oz-accent); }
.oz__quiz-calc-input:disabled { opacity:.7; }
.oz__quiz-units { font-size:1rem; color:var(--text-secondary); font-weight:600; }
.oz__quiz-footer { display:flex; justify-content:flex-end; }
.oz__quiz-btn { padding:13px 30px; border-radius:10px; background:var(--oz-accent); color:#fff; border:0; font-size:1rem; font-weight:600; cursor:pointer; font-family:inherit; transition:filter .15s, transform .1s; }
.oz__quiz-btn:hover:not(:disabled) { filter:brightness(1.1); transform:translateY(-1px); }
.oz__quiz-btn:disabled { opacity:.4; cursor:not-allowed; }


/* ==================================================================
   Los hitos — la ascension por etapas (js/hitos.js)
   Identidad propia: NO es un grid de tarjetas como los clusters, es
   una escalera vertical que se lee de la cumbre al suelo.
   ================================================================== */

.ma-hitos__intro {
  color: var(--oz-text-secondary);
  margin: 0 0 2rem;
  font-size: 0.95rem;
  max-width: 64ch;
  line-height: 1.65;
}

.ma-hitos__ascension {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  max-width: 760px;
}
/* La cuerda que une los hitos. */
.ma-hitos__ascension::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 18px;
  bottom: 18px;
  width: 2px;
  background: linear-gradient(to bottom, var(--oz-border), transparent);
}

.ma-hito-fila { position: relative; margin-bottom: 10px; }

.ma-hito {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 14px 16px;
  border: 1px solid var(--oz-border);
  border-radius: 12px;
  background: var(--oz-surface);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, transform 0.15s;
}
a.ma-hito:hover { border-color: var(--oz-accent); transform: translateX(3px); }

.ma-hito--cerrado { opacity: 0.5; cursor: default; }
.ma-hito--logrado { border-color: rgba(212, 175, 55, 0.4); }

.ma-hito__marca {
  flex: 0 0 auto;
  width: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--oz-bg);
  border-radius: 50%;
  padding: 2px;
}
.ma-hito-medalla { display: block; }
.ma-hito-medalla--vacia { color: var(--oz-text-muted); opacity: 0.45; }

.ma-hito__cuerpo { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.ma-hito__etiqueta {
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--oz-text-muted);
}
.ma-hito__titulo { font-size: 1.05rem; font-weight: 600; color: var(--oz-text); }
.ma-hito__desc { font-size: 0.85rem; color: var(--oz-text-secondary); line-height: 1.5; }
.ma-hito__estado { font-size: 0.76rem; color: var(--oz-text-muted); margin-top: 4px; }

/* ---------- Ficha de un hito ---------- */

.ma-hito-ficha { max-width: 720px; }
.ma-hito-ficha__head { margin: 1rem 0 1.6rem; }
.ma-hito-ficha__etiqueta {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--oz-text-muted);
  margin-bottom: 6px;
}
.ma-hito-ficha__head h1 { font-size: 1.8rem; margin: 0 0 8px; color: var(--oz-text); }
.ma-hito-ficha__desc { color: var(--oz-text-secondary); margin: 0; line-height: 1.6; }

.ma-hito-bloqueo {
  border: 1px dashed var(--oz-border);
  border-radius: 10px;
  padding: 18px 20px;
  color: var(--oz-text-secondary);
}
.ma-hito-bloqueo h3 { margin: 0 0 8px; font-size: 1rem; color: var(--oz-text); }
.ma-hito-bloqueo p { margin: 0 0 10px; line-height: 1.6; font-size: 0.9rem; }
.ma-hito-bloqueo__lista { margin: 0; padding-left: 20px; font-size: 0.88rem; }
.ma-hito-bloqueo__lista a { color: var(--oz-accent); text-decoration: none; }
.ma-hito-bloqueo__lista a:hover { text-decoration: underline; }

/* La escalera: se lee de arriba abajo, como una montana. */
/* Cuanto mas arriba en la escalera, mas tenido el fondo: se ve la altura. */


.ma-hito-ficha__accion { margin-top: 1.4rem; }
.ma-hito-ficha__actual {
  margin: 12px 0 0;
  font-size: 0.84rem;
  color: var(--oz-text-muted);
}

.ma-hito-btn {
  display: inline-block;
  padding: 11px 22px;
  border: 1px solid var(--oz-border);
  border-radius: 8px;
  background: transparent;
  color: var(--oz-text-secondary);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.ma-hito-btn:hover { border-color: var(--oz-accent); color: var(--oz-text); }
.ma-hito-btn--primario {
  border-color: var(--oz-accent);
  color: var(--oz-accent);
  font-weight: 600;
}
.ma-hito-btn--primario:hover { background: var(--oz-accent); color: var(--oz-bg); }

/* ---------- Durante la subida ---------- */

.ma-subida { max-width: 760px; }
.ma-subida__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
}
.ma-subida__etapa { font-size: 0.85rem; color: var(--oz-text-muted); }
.ma-subida__tramo {
  margin-left: auto;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--oz-border);
  color: var(--oz-text-secondary);
}
.ma-subida__tramo--bronce { border-color: #B87333; color: #B87333; }
.ma-subida__tramo--plata  { border-color: #A8B2BD; color: #A8B2BD; }
.ma-subida__tramo--oro    { border-color: #D4AF37; color: #D4AF37; }


.ma-subida__enviada { color: var(--oz-text-muted); font-size: 0.84rem; margin: 8px 0 0; }
.ma-subida__error   { color: #EF4444; font-size: 0.84rem; margin: 8px 0 0; }

/* ---------- Punto de guardado ---------- */

.ma-guardado { max-width: 720px; }
.ma-guardado__head { margin-bottom: 1.4rem; }
.ma-guardado__etapa {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--oz-text-muted);
}
.ma-guardado__head h1 { font-size: 1.7rem; margin: 6px 0 4px; color: var(--oz-text); }
.ma-guardado__marcador { margin: 0; color: var(--oz-text-secondary); font-size: 0.9rem; }


.ma-guardado__repaso {
  margin: 1.2rem 0;
  border: 1px solid var(--oz-border);
  border-radius: 10px;
  padding: 12px 16px;
}
.ma-guardado__repaso summary {
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--oz-text-secondary);
}
.ma-guardado__fallo { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--oz-border); }
.ma-guardado__fallo-preg { margin: 0 0 6px; font-weight: 600; color: var(--oz-text); font-size: 0.9rem; }
.ma-guardado__fallo-exp {
  margin: 6px 0 0;
  font-size: 0.86rem;
  color: var(--oz-text-secondary);
  line-height: 1.6;
}

.ma-guardado__botones { display: flex; gap: 12px; margin-top: 1.6rem; flex-wrap: wrap; }

/* ---------- Final de la subida ---------- */

.ma-final { max-width: 620px; text-align: center; padding-top: 2rem; }
.ma-final__medalla { display: flex; justify-content: center; margin-bottom: 1rem; }
.ma-final__titulo { font-size: 2rem; margin: 0 0 4px; color: var(--oz-text); }
.ma-final__etapa { color: var(--oz-text-muted); margin: 0 0 1.4rem; font-size: 0.9rem; }
.ma-final__texto { color: var(--oz-text-secondary); line-height: 1.7; margin: 0 0 8px; }
.ma-final__texto--suave { color: var(--oz-text-muted); font-size: 0.88rem; }
.ma-final__intentos { color: var(--oz-text-muted); font-size: 0.8rem; margin-top: 1rem; }
.ma-final .ma-guardado__botones { justify-content: center; }

@media (max-width: 640px) {
  .ma-hitos__ascension::before { left: 22px; }
  .ma-hito { padding: 12px 14px; gap: 12px; }
  .ma-hito__marca { width: 32px; }
  .ma-guardado__botones { flex-direction: column; }
  .ma-guardado__botones .ma-hito-btn { width: 100%; text-align: center; }
}


/* ==================================================================
   Los tres examenes de un hito (bronce / plata / oro)
   Cada uno es independiente y su requisito es haber leido ese nivel
   de los atomos de la etapa. Ver la cabecera de js/hitos.js.
   ================================================================== */

/* Los tres huecos de medalla en la lista de la ascension. */
.ma-hito__marcas {
  flex: 0 0 auto;
  display: flex;
  gap: 3px;
  align-items: center;
  padding-top: 2px;
}
.ma-hito__marca {
  display: flex;
  align-items: center;
  justify-content: center;
}

.ma-hito-ficha__regla {
  color: var(--oz-text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
  max-width: 64ch;
  margin: 0 0 1.6rem;
}

.ma-examenes {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ma-examen {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 18px;
  border: 1px solid var(--oz-border);
  border-radius: 12px;
  background: var(--oz-surface);
  border-left: 3px solid var(--oz-border);
}
.ma-examen--disponible { border-left-color: var(--medalla-color); }
.ma-examen--logrado {
  border-left-color: var(--medalla-color);
  background: linear-gradient(to right, rgba(255,255,255,0.02), transparent);
}
.ma-examen--bloqueado,
.ma-examen--sin-banco { opacity: 0.62; }

.ma-examen__medalla { flex: 0 0 auto; display: flex; padding-top: 2px; }

.ma-examen__cuerpo { flex: 1 1 auto; min-width: 0; }

.ma-examen__titulo {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 1.05rem;
  margin: 0 0 4px;
  color: var(--oz-text);
}
.ma-examen__nota {
  font-size: 0.74rem;
  font-weight: 400;
  color: var(--medalla-color);
}

.ma-examen__lema {
  margin: 0 0 10px;
  font-size: 0.86rem;
  color: var(--oz-text-secondary);
  line-height: 1.5;
}

.ma-examen__requisito {
  margin: 0;
  font-size: 0.8rem;
  color: var(--oz-text-muted);
}
.ma-examen__req-etq {
  display: inline-block;
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid var(--oz-border);
}
.ma-examen__requisito strong { color: var(--oz-text-secondary); }

.ma-examen__faltan {
  margin-top: 8px;
  font-size: 0.8rem;
}
.ma-examen__faltan summary {
  cursor: pointer;
  color: var(--oz-text-muted);
}
.ma-examen__faltan ul {
  margin: 6px 0 0;
  padding-left: 20px;
}
.ma-examen__faltan a { color: var(--oz-accent); text-decoration: none; }
.ma-examen__faltan a:hover { text-decoration: underline; }

.ma-examen__accion {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  align-self: center;
}
.ma-examen__aviso {
  font-size: 0.76rem;
  color: var(--oz-text-muted);
  white-space: nowrap;
}

/* ---------- Nota final del examen ---------- */

.ma-final__nota {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  margin: 0 0 1.2rem;
}
.ma-final__pct {
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--oz-text);
  line-height: 1;
}
.ma-final__umbral {
  font-size: 0.76rem;
  color: var(--oz-text-muted);
}

@media (max-width: 640px) {
  .ma-examen { flex-wrap: wrap; gap: 12px; padding: 14px; }
  .ma-examen__accion { width: 100%; }
  .ma-examen__accion .ma-hito-btn { width: 100%; text-align: center; }
  .ma-hito__marcas { gap: 2px; }
}

/* Segunda condicion de la plata: probado con ejercicios. */
.ma-examen__requisito + .ma-examen__requisito { margin-top: 4px; }
.ma-examen__requisito--ok { color: var(--oz-color-level1); }
.ma-examen__requisito--ok .ma-examen__req-etq { border-color: var(--oz-color-level1); }
.ma-examen__requisito--ok strong { color: var(--oz-color-level1); }
.ma-examen__req-pct { opacity: 0.75; }
.ma-examen__significa {
  font-size: 0.68rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--oz-text-muted);
}
.ma-examen__nota-futura {
  margin: 8px 0 0;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--oz-text-muted);
  border-left: 2px solid var(--oz-border);
  padding-left: 10px;
}


/* ==================================================================
   La puerta de una etapa (js/atomos.js -> renderPuertaEtapa)

   No envuelve nada ni pliega nada: el arbol se ve entero. Es una
   linea decorada que se cruza al terminar una etapa, con su nombre
   y el enlace a su examen. Despues el arbol sigue.
   ================================================================== */

.oz__atomos-layout--sin-clusters { display: block; }

.oz__puerta {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 34px 0 30px;
  --puerta-color: var(--oz-border);
}

/* Los dos tramos de linea que salen de la placa hacia los lados.
   Doble filete: uno continuo y otro finito debajo, que es lo que la hace
   leerse como una linea decorada y no como un borde cualquiera. */
.oz__puerta-linea {
  position: relative;
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--puerta-color) 22%, var(--puerta-color));
  opacity: 0.7;
}
.oz__puerta-linea:last-child {
  background: linear-gradient(to left, transparent, var(--puerta-color) 22%, var(--puerta-color));
}
.oz__puerta-linea::after {
  content: "";
  position: absolute;
  left: 12%;
  right: 0;
  top: 4px;
  height: 1px;
  background: inherit;
  opacity: 0.4;
}
.oz__puerta-linea:last-child::after { left: 0; right: 12%; }
.oz__puerta--superada .oz__puerta-linea { opacity: 0.9; }

/* La placa central: es el enlace al examen. */
.oz__puerta-placa {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 22px;
  margin: 0 14px;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--puerta-color);
  border-radius: 4px;
  background: var(--oz-bg);
  transition: border-color 0.18s, transform 0.18s, box-shadow 0.18s;
}
.oz__puerta-placa:hover {
  transform: translateY(-1px);
  border-color: var(--oz-accent);
  box-shadow: 0 2px 14px rgba(0, 0, 0, 0.35);
}

/* Rombos de adorno a cada lado del texto. */
.oz__puerta-rombo {
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  transform: rotate(45deg);
  border: 1px solid var(--puerta-color);
}
.oz__puerta--superada .oz__puerta-rombo {
  background: var(--puerta-color);
}

.oz__puerta-texto {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 0;
}

.oz__puerta-nombre {
  font-family: var(--oz-font-heading, inherit);
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--oz-text-secondary);
  white-space: nowrap;
}
.oz__puerta--superada .oz__puerta-nombre { color: var(--puerta-color); }

.oz__puerta-pie {
  display: flex;
  align-items: center;
  gap: 10px;
}

.oz__puerta-medallas {
  display: flex;
  gap: 4px;
  align-items: center;
}
.oz__puerta-punto {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1px solid var(--oz-border);
  background: transparent;
}

.oz__puerta-accion {
  font-size: 0.7rem;
  color: var(--oz-text-muted);
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.18s;
}
.oz__puerta-accion:hover { color: var(--oz-accent); text-decoration: underline; }
.oz__puerta-sep { font-size: 0.7rem; color: var(--oz-text-muted); opacity: 0.6; }

/* Examen disponible: la puerta llama la atencion sin gritar. */
.oz__puerta--abierta { --puerta-color: var(--oz-accent); }
.oz__puerta-accion--viva {
  color: var(--oz-accent);
  font-weight: 600;
}

@media (max-width: 640px) {
  .oz__puerta { margin: 24px 0 20px; }
  .oz__puerta-placa { padding: 8px 14px; gap: 9px; margin: 0 6px; }
  .oz__puerta-nombre { font-size: 0.74rem; letter-spacing: 0.1em; }
  .oz__puerta-accion { font-size: 0.64rem; }
}

/* ======================================================================
 *  PRÁCTICA — plantillas, sesión y anillo de «probado»
 * ====================================================================== */

.ma-prac { max-width: 820px; }
.ma-prac__h2 { font-size: 1.15rem; margin: 2rem 0 0.2rem; }
.ma-prac__sub { color: var(--oz-text-muted); font-size: 0.88rem; margin: 0 0 1rem; }
.ma-prac__vacio, .ma-prac__aviso { color: var(--oz-text-muted); font-size: 0.9rem; }

/* La sesión de hoy: tamaño fijo, sin contador de pendientes */
.ma-prac-hoy {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 18px 22px;
  border: 1px solid var(--oz-accent);
  border-radius: 12px;
  background: var(--oz-accent-subtle);
  margin: 1.5rem 0;
}
.ma-prac-hoy--hecha { border-color: var(--oz-border); background: var(--oz-surface); }
.ma-prac-hoy__cuerpo { flex: 1; }
.ma-prac-hoy__cuerpo p { margin: 0.3rem 0 0.9rem; color: var(--oz-text-secondary); font-size: 0.92rem; }
.ma-prac-hoy__titulo { margin: 0; font-size: 1.2rem; }
.ma-prac-hoy__racha { text-align: center; min-width: 70px; }
.ma-prac-hoy__num { display: block; font-size: 2rem; font-weight: 700; line-height: 1; color: var(--oz-accent); }
.ma-prac-hoy__etq { display: block; font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--oz-text-muted); margin-top: 4px; }
@media (max-width: 560px) { .ma-prac-hoy { flex-direction: column; align-items: stretch; } .ma-prac-hoy__racha { text-align: left; } }

/* Los temas: escaleras de hojas */
.ma-temas { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; margin: 1.2rem 0 1.6rem; }
.ma-tema {
  display: flex;
  flex-direction: column;
  padding: 16px 18px;
  border: 1px solid var(--oz-border);
  border-radius: 12px;
  background: var(--oz-surface);
  color: var(--oz-text);
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;
}
a.ma-tema:hover { border-color: var(--oz-accent); transform: translateY(-1px); }
.ma-tema--pronto { opacity: 0.55; border-style: dashed; }
.ma-tema__cuerpo { flex: 1; }
.ma-tema__titulo { margin: 0 0 4px; font-size: 1.1rem; }
.ma-tema__desc { margin: 0 0 12px; font-size: 0.86rem; color: var(--oz-text-secondary); line-height: 1.5; }
.ma-tema__barra { height: 5px; border-radius: 3px; background: var(--oz-border); overflow: hidden; margin-bottom: 8px; }
.ma-tema__relleno { height: 100%; background: var(--oz-accent); border-radius: 3px; transition: width 0.3s; }
.ma-tema--terminado .ma-tema__relleno { background: #10B981; }
.ma-tema__estado { margin: 0; font-size: 0.82rem; color: var(--oz-text-muted); }
.ma-tema__accion { margin-top: 12px; font-size: 0.86rem; font-weight: 600; color: var(--oz-accent); }

/* Un tema: la escalera de hojas */
.ma-tema-ficha__head { margin: 0.6rem 0 1.4rem; }
.ma-tema-ficha__head h1 { margin: 2px 0 6px; font-size: 1.7rem; }
.ma-tema-ficha__aviso {
  margin: 0 0 1.2rem;
  padding: 10px 14px;
  border-left: 3px solid var(--oz-accent);
  border-radius: 6px;
  background: var(--oz-surface);
  font-size: 0.9rem;
  color: var(--oz-text-secondary);
}
.ma-hojas { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.ma-hoja-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border: 1px solid var(--oz-border);
  border-radius: 10px;
  background: var(--oz-surface);
}
.ma-hoja-item--actual { border-color: var(--oz-accent); box-shadow: 0 0 0 2px var(--oz-accent-subtle); }
.ma-hoja-item--aprobada { border-color: rgba(16, 185, 129, 0.5); }
.ma-hoja-item--bloqueada { opacity: 0.5; }
.ma-hoja-item__num {
  flex: 0 0 auto;
  width: 30px; height: 30px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 2px solid var(--oz-border);
  font-size: 0.82rem; font-weight: 700;
  color: var(--oz-text-muted);
}
.ma-hoja-item--actual .ma-hoja-item__num { border-color: var(--oz-accent); color: var(--oz-accent); }
.ma-hoja-item--aprobada .ma-hoja-item__num { border-color: #10B981; background: #10B981; color: #fff; }
.ma-hoja-item__cuerpo { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.ma-hoja-item__titulo { font-weight: 600; font-size: 0.95rem; }
.ma-hoja-item__meta { font-size: 0.76rem; color: var(--oz-text-muted); }
.ma-hoja-item__cert { font-size: 0.76rem; color: var(--oz-text-secondary); margin-top: 2px; }
.ma-hoja-item__lock { color: var(--oz-text-muted); padding: 0 10px; }
.ma-hoja-item .ma-hito-btn { flex: 0 0 auto; }
@media (max-width: 560px) {
  .ma-hoja-item { flex-wrap: wrap; }
  .ma-hoja-item .ma-hito-btn { width: 100%; text-align: center; margin-top: 4px; }
}

/* El anillo: relleno = leído, anillo = probado, agrietado = oxidado */
.ma-prac-card__anillo, .ma-atomo-practica__anillo {
  flex: 0 0 auto;
  width: 16px; height: 16px;
  border-radius: 50%;
  border: 2px solid var(--oz-border);
  box-sizing: border-box;
}
.ma-prac-card--en-curso .ma-prac-card__anillo, .ma-atomo-practica--en-curso .ma-atomo-practica__anillo { border-color: var(--oz-text-muted); }
.ma-prac-card--probado .ma-prac-card__anillo, .ma-atomo-practica--probado .ma-atomo-practica__anillo { border-color: #10B981; box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.25); }
.ma-prac-card--oxidado .ma-prac-card__anillo, .ma-atomo-practica--oxidado .ma-atomo-practica__anillo { border-color: #D97706; border-style: dashed; }

/* En el árbol: el anillo alrededor del nodo */
.oz__atom-node--probado .oz__atom-circle { outline: 3px solid #10B981; outline-offset: 3px; }
.oz__atom-node--oxidado .oz__atom-circle { outline: 3px dashed #D97706; outline-offset: 3px; }
.oz__puerta-punto--atenuada { opacity: 0.45; border-style: dashed !important; }

/* En la ficha del átomo */
.ma-atomo-practica {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0 0;
  padding: 8px 12px;
  border: 1px solid var(--oz-border);
  border-radius: 8px;
  font-size: 0.84rem;
  color: var(--oz-text-secondary);
}
.ma-atomo-practica__txt { flex: 1; }
.ma-atomo-practica__btn {
  padding: 5px 12px;
  border: 1px solid var(--oz-accent);
  border-radius: 6px;
  color: var(--oz-accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.8rem;
  white-space: nowrap;
}
a.ma-atomo-practica__btn:hover { background: var(--oz-accent); color: var(--oz-bg); }

/* La sesión */
.ma-prac-sesion { max-width: 720px; }
.ma-prac-sesion__head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 8px; }
.ma-prac-sesion__salir { font-size: 0.85rem; color: var(--oz-text-muted); text-decoration: none; }
.ma-prac-sesion__salir:hover { color: var(--oz-text); }
.ma-prac-sesion__pos { font-size: 0.8rem; color: var(--oz-text-muted); }
.ma-prac-sesion__puntos { display: flex; gap: 6px; margin-bottom: 1.4rem; }
.ma-prac-punto { width: 10px; height: 10px; border-radius: 50%; background: var(--oz-border); }
.ma-prac-punto--actual { background: var(--oz-accent); }
.ma-prac-punto--ok { background: #10B981; }
.ma-prac-punto--mal { background: #DC2626; }

.ma-prac-ej {
  padding: 22px 24px;
  border: 1px solid var(--oz-border);
  border-radius: 12px;
  background: var(--oz-surface);
}
.ma-prac-ej__origen { font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--oz-text-muted); margin-bottom: 10px; }
.ma-prac-ej__origen a { color: inherit; text-decoration: none; border-bottom: 1px dotted currentColor; }
.ma-prac-ej__enunciado { font-size: 1.12rem; line-height: 1.6; margin-bottom: 18px; }
.ma-prac-ej__form { display: flex; gap: 10px; flex-wrap: wrap; }
.ma-prac-ej__input {
  flex: 1 1 200px;
  min-width: 0;
  padding: 10px 14px;
  font-size: 1.05rem;
  font-family: inherit;
  border: 1px solid var(--oz-border);
  border-radius: 8px;
  background: var(--oz-bg);
  color: var(--oz-text);
}
.ma-prac-ej__input:focus { outline: none; border-color: var(--oz-accent); }
.ma-prac-ej__input:disabled { opacity: 0.6; }
.ma-prac-ej__feedback { margin-top: 18px; padding: 14px 16px; border-radius: 8px; border-left: 3px solid var(--oz-border); background: var(--oz-bg); font-size: 0.94rem; line-height: 1.6; }
.ma-prac-ej__feedback--ok { border-left-color: #10B981; }
.ma-prac-ej__feedback--mal { border-left-color: #DC2626; }
.ma-prac-fb__titulo { margin: 0 0 6px; font-weight: 700; }
.ma-prac-fb__titulo--ok { color: #10B981; }
.ma-prac-fb__titulo--mal { color: #DC2626; }
.ma-prac-fb__trampa { padding: 8px 12px; margin: 6px 0 10px; border-radius: 6px; background: rgba(220, 38, 38, 0.08); }
.ma-prac-fb__resp { margin: 0 0 6px; }
.ma-prac-fb__exp { color: var(--oz-text-secondary); }
.ma-prac-fb__otra { font-size: 0.82rem; color: var(--oz-text-muted); margin: 8px 0; }
.ma-prac-ej__feedback .ma-hito-btn { margin-top: 10px; }

/* ------------------------------------------------------------------
   Widgets de respuesta. Cada ejercicio se responde como pide la forma
   de su respuesta: botones, arrastrar, marcar, emparejar, deslizar,
   clasificar. Objetivos táctiles de 44px como mínimo.
   ------------------------------------------------------------------ */
.ma-w-ayuda { flex-basis: 100%; margin: -6px 0 6px; font-size: 0.8rem; color: var(--oz-text-muted); }

/* elegir */
.ma-w-opciones { flex-basis: 100%; display: flex; flex-wrap: wrap; gap: 10px; }
.ma-w-opcion {
  flex: 1 1 120px;
  min-height: 48px;
  padding: 10px 16px;
  font: inherit; font-size: 1.05rem; font-weight: 600;
  color: var(--oz-text);
  background: var(--oz-bg);
  border: 2px solid var(--oz-border);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 0.12s, background 0.12s;
}
.ma-w-opcion:hover:not(:disabled) { border-color: var(--oz-accent); }
.ma-w-opcion--sel { border-color: var(--oz-accent); }
.ma-w-opcion--bien { border-color: #10B981; background: rgba(16, 185, 129, 0.12); }
.ma-w-opcion--mal { border-color: #DC2626; background: rgba(220, 38, 38, 0.10); }
.ma-w-opcion:disabled { cursor: default; }

/* ordenar */
.ma-w-orden { flex-basis: 100%; list-style: none; margin: 0 0 4px; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.ma-w-orden__item {
  display: flex; align-items: center; gap: 10px;
  min-height: 46px;
  padding: 6px 10px 6px 12px;
  border: 1px solid var(--oz-border);
  border-radius: 8px;
  background: var(--oz-bg);
  cursor: grab;
  font-size: 1.05rem; font-weight: 600;
}
.ma-w-orden__item--drag { opacity: 0.4; }
.ma-w-orden__asa { color: var(--oz-text-muted); font-size: 0.9rem; }
.ma-w-orden__txt { flex: 1; }
.ma-w-orden__btns { display: flex; gap: 2px; }
.ma-w-orden__mover {
  width: 36px; height: 34px;
  border: 1px solid var(--oz-border); border-radius: 6px;
  background: var(--oz-surface); color: var(--oz-text-secondary);
  font-size: 0.7rem; cursor: pointer;
}
.ma-w-orden__mover:hover:not(:disabled) { border-color: var(--oz-accent); color: var(--oz-accent); }

/* fichas (marcar y clasificar) */
.ma-w-fichas { flex-basis: 100%; display: flex; flex-wrap: wrap; gap: 8px; }
.ma-w-ficha {
  min-width: 56px; min-height: 44px;
  padding: 8px 14px;
  font: inherit; font-size: 1.02rem; font-weight: 600;
  color: var(--oz-text);
  background: var(--oz-bg);
  border: 2px solid var(--oz-border);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.12s, background 0.12s, transform 0.12s;
}
.ma-w-ficha:hover:not(:disabled) { border-color: var(--oz-accent); }
.ma-w-ficha--on, .ma-w-ficha--sel { border-color: var(--oz-accent); background: var(--oz-accent-subtle); }
.ma-w-ficha--sel { transform: scale(1.06); }
.ma-w-ficha--bien { border-color: #10B981; background: rgba(16, 185, 129, 0.14); }
.ma-w-ficha--mal { border-color: #DC2626; background: rgba(220, 38, 38, 0.10); }
.ma-w-ficha--faltaba { border-color: #DC2626; border-style: dashed; }
.ma-w-ficha:disabled { cursor: default; }

/* emparejar */
.ma-w-parejas { flex-basis: 100%; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 18px; }
.ma-w-parejas__col { display: flex; flex-direction: column; gap: 8px; }
.ma-w-par {
  min-height: 46px;
  padding: 8px 14px;
  font: inherit; font-size: 1.02rem; font-weight: 600;
  color: var(--oz-text);
  background: var(--oz-bg);
  border: 2px solid var(--oz-border);
  border-radius: 10px;
  cursor: pointer;
  text-align: center;
  transition: border-color 0.12s, background 0.12s;
}
.ma-w-par:hover:not(:disabled) { border-color: var(--oz-accent); }
.ma-w-par--sel { border-color: var(--oz-accent); border-style: dashed; }
.ma-w-par[data-color="1"] { border-color: #3B82F6; background: rgba(59, 130, 246, 0.12); }
.ma-w-par[data-color="2"] { border-color: #F59E0B; background: rgba(245, 158, 11, 0.12); }
.ma-w-par[data-color="3"] { border-color: #A855F7; background: rgba(168, 85, 247, 0.12); }
.ma-w-par[data-color="4"] { border-color: #EC4899; background: rgba(236, 72, 153, 0.12); }
.ma-w-par[data-color="5"] { border-color: #14B8A6; background: rgba(20, 184, 166, 0.12); }
.ma-w-par[data-color="6"] { border-color: #F97316; background: rgba(249, 115, 22, 0.12); }
.ma-w-par--bien { border-color: #10B981 !important; background: rgba(16, 185, 129, 0.14) !important; }
.ma-w-par--mal { border-color: #DC2626 !important; background: rgba(220, 38, 38, 0.10) !important; }
.ma-w-par:disabled { cursor: default; }

/* recta */
.ma-w-recta { flex-basis: 100%; padding: 6px 8px 30px; position: relative; }
.ma-w-recta__slider { width: 100%; height: 44px; margin: 0; cursor: pointer; accent-color: var(--oz-accent); }
.ma-w-recta__marcas { position: relative; height: 44px; }
.ma-w-recta__marca, .ma-w-recta__correcta, .ma-w-recta__puesta {
  position: absolute; top: 0;
  transform: translateX(-50%);
  font-size: 0.78rem; color: var(--oz-text-muted);
  font-variant-numeric: tabular-nums;
}
.ma-w-recta__marca::before, .ma-w-recta__correcta::before, .ma-w-recta__puesta::before {
  content: ''; position: absolute; left: 50%; top: -8px;
  width: 1px; height: 6px; background: var(--oz-text-muted);
}
.ma-w-recta__correcta { top: 20px; color: #10B981; font-weight: 700; }
.ma-w-recta__puesta { top: 20px; color: #DC2626; font-weight: 700; margin-top: 18px; }
.ma-w-recta__puesta::before { top: -46px; height: 44px; width: 2px; background: #DC2626; opacity: 0.6; }
.ma-w-recta__correcta::before { top: -28px; height: 26px; width: 2px; background: #10B981; }

/* clasificar */
.ma-w-clasificar { flex-basis: 100%; display: flex; flex-direction: column; gap: 12px; }
.ma-w-bandeja { display: flex; flex-wrap: wrap; gap: 8px; min-height: 52px; padding: 6px; border-radius: 10px; border: 1px dashed var(--oz-border); }
.ma-w-cajas { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.ma-w-caja {
  min-height: 110px;
  border: 2px solid var(--oz-border);
  border-radius: 12px;
  background: var(--oz-bg);
  cursor: pointer;
  transition: border-color 0.12s;
}
.ma-w-caja:hover { border-color: var(--oz-accent); }
.ma-w-caja__titulo { padding: 8px 12px; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--oz-text-muted); border-bottom: 1px solid var(--oz-border); }
.ma-w-caja__cuerpo { display: flex; flex-wrap: wrap; gap: 6px; padding: 8px; min-height: 60px; }

.ma-prac-ej__comprobar { flex-basis: auto; }
@media (max-width: 560px) {
  .ma-w-parejas { gap: 8px 10px; }
  .ma-prac-ej__comprobar { flex-basis: 100%; text-align: center; }
}

/* ==================================================================
   Referencia — una puerta para todo lo que se consulta (js/referencia.js)
   Las pestanas son lo unico propio; cada lista es la de su campo.
   ================================================================== */

.ma-ref__cabecera { margin: 0 0 1.2rem; }
.ma-ref__titulo { font-size: 1.8rem; margin: 0 0 4px; color: var(--oz-text); }
.ma-ref__sub { margin: 0; color: var(--oz-text-secondary); font-size: 0.95rem; }

.ma-ref__pestanas {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--oz-border);
  margin: 0 0 1.6rem;
}
.ma-ref__pestana {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 14px;
  margin-bottom: -1px;
  border-bottom: 2px solid transparent;
  color: var(--oz-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.15s, border-color 0.15s;
}
.ma-ref__pestana:hover { color: var(--oz-text); }
.ma-ref__pestana--activa {
  color: var(--ref-color, var(--oz-accent));
  border-bottom-color: var(--ref-color, var(--oz-accent));
  font-weight: 600;
}
.ma-ref__n {
  font-size: 0.68rem;
  font-weight: 400;
  color: var(--oz-text-muted);
  padding: 1px 6px;
  border-radius: 999px;
  border: 1px solid var(--oz-border);
}

/* Dentro de Referencia, la cabecera propia de cada lista sobra: ya hay
   titulo y pestana. Se atenua en vez de esconderse por si trae filtros. */
.ma-ref__cuerpo > .oz-fade-in > .oz-section-header { display: none; }

@media (max-width: 640px) {
  .ma-ref__pestana { padding: 8px 10px; font-size: 0.84rem; }
}

/* ==================================================================
   La tira del dia sobre el arbol (js/atomos.js -> renderTiraDelDia)
   ================================================================== */

.oz__dia {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 14px;
}
.oz__dia-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--oz-border);
  border-radius: 999px;
  background: var(--oz-surface);
  color: var(--oz-text-secondary);
  font-size: 0.82rem;
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s;
}
.oz__dia-item:hover { border-color: var(--oz-accent); color: var(--oz-text); }
.oz__dia-icono { font-size: 0.7rem; color: var(--oz-accent); }
.oz__dia-item--hecho .oz__dia-icono { color: var(--oz-color-level1); }
.oz__dia-item--hecho { opacity: 0.75; }
.oz__dia-item--hito { border-color: rgba(212, 175, 55, 0.45); }
.oz__dia-item--hito .oz__dia-icono { color: #D4AF37; }
.oz__dia-racha {
  font-size: 0.7rem;
  color: var(--oz-text-muted);
  padding-left: 8px;
  border-left: 1px solid var(--oz-border);
}

@media (max-width: 640px) {
  .oz__dia-item { font-size: 0.78rem; padding: 6px 11px; }
}

/* ==================================================================
 *  WORMHOLES — atajos con reto sobre el árbol (js/wormholes.js)
 * ================================================================== */

/* El icono junto al nodo de origen, abajo a la derecha del círculo */
.ma-wh {
  position: absolute;
  right: 16px;
  top: 40px;
  z-index: 3;
  width: 24px; height: 24px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 2px solid var(--oz-border);
  background: var(--oz-surface);
  color: var(--oz-text-muted);
  cursor: pointer;
  pointer-events: auto;
  transition: transform .2s, box-shadow .2s, color .2s;
}
.ma-wh--bloqueado { opacity: .45; filter: saturate(0); cursor: default; }
.ma-wh--disponible {
  color: #8B5CF6;
  border-color: #8B5CF6;
  box-shadow: 0 0 10px rgba(139, 92, 246, .55);
  animation: ma-wh-latido 2.2s ease-in-out infinite;
}
.ma-wh--disponible:hover, .ma-wh--disponible:focus-visible { transform: scale(1.2); box-shadow: 0 0 16px rgba(139, 92, 246, .8); outline: none; }
.ma-wh--cruzado { color: #8B5CF6; border-color: rgba(139, 92, 246, .5); opacity: .75; }
@keyframes ma-wh-latido { 0%, 100% { box-shadow: 0 0 6px rgba(139, 92, 246, .35); } 50% { box-shadow: 0 0 14px rgba(139, 92, 246, .8); } }
@media (max-width: 768px) { .ma-wh { right: 8px; top: 32px; width: 22px; height: 22px; } }
@media (max-width: 480px) { .ma-wh { right: 6px; top: 28px; width: 20px; height: 20px; } }

/* El destino saltado: el relleno dice leído, el borde a rayas dice «no lo has leído» */
.oz__atom-node--saltado .oz__atom-circle { border-style: dashed !important; }
.oz__tooltip-saltado { color: #8B5CF6; font-style: italic; }

/* En la ficha del átomo */
.ma-atomo-saltado {
  display: flex; align-items: center; gap: 10px;
  margin: 12px 0 0;
  padding: 8px 12px;
  border: 1px dashed #8B5CF6;
  border-radius: 8px;
  font-size: .84rem;
  color: var(--oz-text-secondary);
}
.ma-atomo-saltado__txt { flex: 1; }
.ma-atomo-saltado .ma-atomo-practica__btn { border-color: #8B5CF6; color: #8B5CF6; background: none; cursor: pointer; font-family: inherit; }
.ma-atomo-saltado .ma-atomo-practica__btn:hover { background: #8B5CF6; color: #fff; }

/* La senda */
.ma-wh-sep { width: 2px; height: 10px; background: var(--oz-border); margin: 0 4px; }
.ma-wh-pista {
  margin: -4px 0 14px;
  padding: 8px 12px 8px 14px;
  border-left: 3px solid #8B5CF6;
  background: color-mix(in srgb, #8B5CF6 8%, transparent);
  border-radius: 0 8px 8px 0;
  font-size: .88rem;
  color: var(--oz-text-secondary);
}
.ma-wh-revelacion { max-width: 640px; margin: 0 auto 1.2rem; text-align: left; font-size: 1rem; line-height: 1.6; }
.ma-wh-revelacion p { margin: 0 0 .8em; }
.ma-wh-dibujo { margin: 12px 0 4px; color: var(--oz-text-secondary); }
.ma-wh-dibujo svg { max-width: 100%; height: auto; display: block; }
.ma-wh-dibujo--recta svg { width: 100%; max-width: 520px; }

/* Bloque: varias cuentas de la misma plantilla en un solo ejercicio */
.ma-prac-sub { display: flex; gap: 12px; align-items: flex-start; padding: 10px 0; border-top: 1px solid var(--oz-border); }
.ma-prac-sub:first-of-type { border-top: 0; padding-top: 0; }
.ma-prac-sub__num {
  flex: 0 0 auto; width: 26px; height: 26px; margin-top: 2px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%; border: 2px solid var(--oz-border);
  font-size: 0.78rem; font-weight: 700; color: var(--oz-text-muted);
}
.ma-prac-sub--ok .ma-prac-sub__num { border-color: #10B981; background: #10B981; color: #fff; }
.ma-prac-sub--mal .ma-prac-sub__num { border-color: #DC2626; background: #DC2626; color: #fff; }
.ma-prac-sub__cuerpo { flex: 1; min-width: 0; }
.ma-prac-sub__enunciado { font-size: 1.02rem; line-height: 1.5; margin-bottom: 8px; }
.ma-prac-sub .ma-prac-ej__input { max-width: 340px; }
.ma-prac-sub .ma-w-opciones { margin-bottom: 0; }
.ma-prac-sub__fb { margin-top: 6px; font-size: 0.88rem; }
.ma-prac-sub__ok { color: #10B981; font-weight: 600; }
.ma-prac-sub__mal { color: #DC2626; }
.ma-prac-sub__trampa { display: block; margin-top: 4px; color: var(--oz-text-secondary); }
.ma-prac-ej--bloque .ma-prac-ej__comprobar { margin-top: 14px; }
.ma-prac-ej--bloque .ma-prac-ej__form { flex-direction: column; gap: 0; }
.ma-prac-sub { width: 100%; }
.ma-prac-sub .ma-w-opciones { max-width: 520px; }
.ma-prac-sub .ma-w-opcion { flex: 0 1 auto; min-width: 110px; min-height: 42px; padding: 8px 18px; }
.ma-prac-ej--bloque .ma-prac-ej__comprobar { align-self: flex-start; }