/* cursos.css — /cursos (catálogo) y /cursos/<slug> (detalle, reproductor y pago).
   Se carga después de catalogo.css (mismo header, buscador, filtros y pie).
   Solo tokens de variables.css: el tema claro/oscuro se resuelve solo. */

.cursos-page { --cur-radio: 14px; --cur-sombra: 0 10px 30px rgba(0, 0, 0, 0.28); }
[data-theme="light"] .cursos-page { --cur-sombra: 0 10px 30px rgba(43, 38, 32, 0.10); }
.cursos-page ::selection { background: var(--color-primary); color: #fff; }

.nav-links a.nav-actual { color: var(--color-accent); }

/* ── Botones ─────────────────────────────────────────────────────── */
.cursos-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 10px 18px;
  border: 2px solid var(--color-primary); border-radius: 10px;
  background: var(--color-primary); color: #fff;
  font: 600 15px/1.2 var(--font-body); text-decoration: none; cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}
.cursos-btn svg { width: 17px; height: 17px; stroke-width: 2; flex-shrink: 0; }
.cursos-btn:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: #fff; box-shadow: var(--shadow-primary); }
.cursos-btn:active { transform: scale(0.98); }
.cursos-btn:disabled { opacity: 0.6; cursor: progress; box-shadow: none; }
.cursos-btn--sec { background: transparent; color: var(--color-primary); }
.cursos-btn--sec:hover { background: var(--color-primary); color: #fff; }
.cursos-btn--grande { width: 100%; min-height: 50px; font-size: 16px; }
.cursos-btn-link {
  display: inline-flex; align-items: center; gap: 6px; min-height: 40px; padding: 6px 4px;
  background: none; border: 0; color: var(--color-primary); font: 600 14px var(--font-body);
  text-decoration: underline; text-decoration-color: transparent; text-underline-offset: 4px; cursor: pointer;
}
.cursos-btn-link:hover { color: var(--color-primary-hover); text-decoration-color: currentColor; }
.cursos-btn-link svg { width: 16px; height: 16px; }
.cursos-page :is(a, button, input, video):focus-visible {
  outline: 2px solid var(--color-accent); outline-offset: 3px; border-radius: 8px;
}

/* ── Catálogo ────────────────────────────────────────────────────── */
.cursos-container { max-width: 1240px; }
.cursos-filtros { display: flex; flex-wrap: wrap; gap: 14px 20px; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.cursos-filtros .search-bar { max-width: 520px; }
.cursos-filtros .search-bar input { min-height: 46px; }
.cursos-niveles { display: flex; flex-wrap: wrap; gap: 8px; }
.cursos-niveles .filter-btn { min-height: 44px; }

.cursos-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 24px; }
.cursos-grid[hidden] { display: none; }
.curso-card {
  display: flex; flex-direction: column; overflow: hidden; cursor: pointer;
  background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--cur-radio);
  transition: border-color var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-normal);
}
.curso-card[hidden] { display: none; }
.curso-card:focus-within { border-color: var(--color-primary); }
@media (hover: hover) {
  .curso-card:hover { border-color: var(--color-primary); transform: translateY(-4px); box-shadow: var(--cur-sombra); }
  .curso-card:hover .curso-card-media img { transform: scale(1.03); }
}
.curso-card:active { transform: scale(0.995); }
.curso-card-media { position: relative; display: block; aspect-ratio: 16 / 9; background: var(--color-bg-input); overflow: hidden; }
.curso-card-media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.6s var(--ease-out); }
.curso-card-sinportada { display: grid; place-items: center; width: 100%; height: 100%; color: var(--color-text-dark); }
.curso-card-sinportada svg { width: 42px; height: 42px; stroke-width: 1.25; }
.curso-card-nivel {
  position: absolute; left: 12px; bottom: 12px; padding: 4px 10px; border-radius: 999px;
  background: rgba(20, 17, 14, 0.78); color: #f3ead9; font-size: 12px; font-weight: 600; letter-spacing: 0.01em;
}
.curso-card-cuerpo { flex: 1; display: flex; flex-direction: column; gap: 10px; padding: 18px 18px 20px; }
.curso-card-titulo { margin: 0; font: 700 18px/1.3 var(--font-body); text-wrap: balance; }
.curso-card-titulo a { color: var(--color-text-main); text-decoration: none; }
.curso-card-titulo a:hover { color: var(--color-primary); }
.curso-card-resumen {
  margin: 0; color: var(--color-text-muted); font-size: 14.5px; line-height: 1.55;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.curso-datos { list-style: none; display: flex; flex-wrap: wrap; gap: 6px 16px; margin: 0; padding: 0; color: var(--color-text-muted); font-size: 13.5px; }
.curso-datos li { display: inline-flex; align-items: center; gap: 6px; }
.curso-datos svg { width: 15px; height: 15px; stroke-width: 1.75; color: var(--color-primary); }
.curso-card-pie { margin-top: auto; padding-top: 8px; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.curso-precio { display: flex; flex-direction: column; font-size: 21px; font-weight: 700; color: var(--color-text-main); font-variant-numeric: tabular-nums; line-height: 1.15; }
.curso-precio-etq { font-size: 12px; font-weight: 500; color: var(--color-text-muted); }

/* Lecciones sueltas: un solo panel con filas, no otra rejilla de tarjetas. */
.cursos-sueltos { margin-top: 56px; }
.cursos-sueltos[hidden] { display: none; }
.cursos-sec-titulo, .curso-sec-titulo { font-family: var(--font-display); font-weight: 600; color: var(--color-text-main); font-size: clamp(22px, 2.6vw, 28px); margin: 0 0 6px; }
.cursos-sec-intro { color: var(--color-text-muted); margin: 0 0 18px; }
.sueltos-lista { list-style: none; margin: 0; padding: 0; border: 1px solid var(--color-border); border-radius: var(--cur-radio); background: var(--color-bg-card); overflow: hidden; }
.suelto { position: relative; display: grid; grid-template-columns: 96px 1fr auto; align-items: center; gap: 16px; padding: 14px 18px; transition: background var(--transition-fast); }
.suelto + .suelto { border-top: 1px solid var(--color-border); }
.suelto[hidden] { display: none; }
.suelto:hover { background: var(--color-primary-light); }
.suelto-mini { width: 96px; aspect-ratio: 16 / 9; border-radius: 8px; overflow: hidden; background: var(--color-bg-input); display: grid; place-items: center; color: var(--color-text-dark); }
.suelto-mini img { width: 100%; height: 100%; object-fit: cover; }
.suelto-texto { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.suelto-titulo { color: var(--color-text-main); font-weight: 600; text-decoration: none; }
.suelto-titulo::after { content: ''; position: absolute; inset: 0; } /* fila entera clicable */
.suelto-titulo:hover { color: var(--color-primary); }
.suelto-meta { color: var(--color-text-muted); font-size: 13.5px; }
.suelto-precio { font-weight: 700; font-variant-numeric: tabular-nums; color: var(--color-text-main); white-space: nowrap; }

/* Empty / error */
.cursos-vacio { max-width: 560px; margin: 24px auto; padding: 40px 28px; text-align: center; border: 1px solid var(--color-border); border-radius: 18px; background: var(--color-bg-card); }
.cursos-vacio[hidden] { display: none; }
.cursos-vacio h1, .cursos-vacio h2 { font-family: var(--font-display); font-weight: 600; font-size: clamp(22px, 3vw, 28px); color: var(--color-text-main); margin: 14px 0 8px; text-wrap: balance; }
.cursos-vacio p { color: var(--color-text-muted); margin: 0 auto 20px; max-width: 46ch; line-height: 1.6; }
.cursos-vacio-icono { display: inline-grid; place-items: center; width: 64px; height: 64px; border-radius: 50%; background: var(--color-primary-light); color: var(--color-primary); }
.cursos-vacio-icono svg { width: 30px; height: 30px; stroke-width: 1.5; }
.cursos-vacio--chico { margin: 0; padding: 28px 20px; }
.cursos-vacio--chico p { margin-bottom: 0; }

/* ── Detalle ─────────────────────────────────────────────────────── */
.curso-wrap { max-width: 1240px; margin: 0 auto; padding: 32px clamp(16px, 4vw, 48px) 24px; }
.curso-hero { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.25fr); gap: clamp(24px, 4vw, 56px); align-items: center; }
.curso-titulo { font-family: var(--font-display); font-weight: 600; font-optical-sizing: auto; font-size: clamp(30px, 4.4vw, 52px); line-height: 1.08; letter-spacing: -0.01em; color: var(--color-text-main); margin: 0 0 14px; text-wrap: balance; }
.curso-resumen { color: var(--color-text-muted); font-size: 17.5px; line-height: 1.6; max-width: 56ch; margin: 0 0 20px; }
.curso-datos--hero { gap: 10px 20px; font-size: 14.5px; color: var(--color-text-main); }
.curso-aviso, .curso-compra-aviso {
  display: flex; gap: 8px; align-items: flex-start; margin: 0 0 14px; padding: 10px 14px; border-radius: 10px;
  background: var(--color-warning-bg); color: var(--color-text-main); font-size: 14px; line-height: 1.5;
}
.curso-aviso svg, .curso-compra-aviso svg { width: 16px; height: 16px; color: var(--color-warning); flex-shrink: 0; margin-top: 2px; }
.curso-compra-aviso { margin: 14px 0 0; }
.curso-compra-aviso[hidden] { display: none; }
.curso-compra-aviso a { color: var(--color-primary); font-weight: 600; }

.curso-escena { margin: 0; scroll-margin-top: 128px; } /* que el header fijo no tape el video al enfocarlo */
.curso-pantalla { position: relative; aspect-ratio: 16 / 9; border-radius: var(--cur-radio); overflow: hidden; background: #0d0b09; box-shadow: var(--cur-sombra); }
.curso-video { display: block; width: 100%; height: 100%; object-fit: contain; background: #0d0b09; }
.curso-video[hidden] { display: none; }
.curso-pantalla-vacia { position: absolute; inset: 0; display: grid; place-items: center; color: #e9e1d3; }
.curso-pantalla-vacia[hidden] { display: none; }
.curso-pantalla-vacia img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.45; }
.curso-pantalla-vacia span { position: relative; display: inline-flex; gap: 8px; align-items: center; padding: 8px 14px; border-radius: 999px; background: rgba(13, 11, 9, 0.7); font-size: 14px; }
.curso-pantalla-vacia svg { width: 16px; height: 16px; }
.curso-pantalla-carga { position: absolute; inset: 0; display: flex; flex-direction: column; gap: 12px; align-items: center; justify-content: center; background: rgba(13, 11, 9, 0.72); color: #e9e1d3; font-size: 14px; }
.curso-pantalla-carga[hidden] { display: none; }
.curso-escena-pie { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 12px; min-height: 44px; }
.curso-escena-etq { color: var(--color-text-muted); font-size: 14px; font-weight: 500; min-width: 0; }
.curso-escena-nav { display: inline-flex; align-items: center; gap: 8px; }
.curso-escena-nav[hidden] { display: none; }
.curso-escena-error { margin: 10px 0 0; padding: 10px 14px; border-radius: 10px; background: var(--color-error-bg); color: var(--color-error); font-size: 14px; }
.curso-escena-error[hidden] { display: none; }
.curso-icono-btn {
  display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: 10px;
  border: 1px solid var(--color-border-light); background: var(--color-bg-card); color: var(--color-text-main); cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}
.curso-icono-btn svg { width: 18px; height: 18px; }
.curso-icono-btn:hover:not(:disabled) { border-color: var(--color-primary); color: var(--color-primary); }
.curso-icono-btn:active:not(:disabled) { transform: scale(0.95); }
.curso-icono-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.curso-vista-btn {
  display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 8px 14px; border-radius: 10px;
  border: 1px solid var(--color-border-light); background: var(--color-bg-card); color: var(--color-text-main);
  font: 600 14px var(--font-body); cursor: pointer; transition: all var(--transition-fast);
}
.curso-vista-btn[hidden] { display: none; }
.curso-vista-btn svg { width: 17px; height: 17px; }
.curso-vista-btn:hover { border-color: var(--color-primary); }
.curso-vista-btn[aria-pressed="true"] { background: var(--color-success-bg); border-color: var(--color-success); color: var(--color-success); }

.curso-cuerpo { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: clamp(24px, 4vw, 56px); margin-top: clamp(32px, 5vw, 56px); align-items: start; }
.curso-principal { grid-column: 1; grid-row: 1; min-width: 0; }
.curso-compra {
  grid-column: 2; grid-row: 1; position: sticky; top: 128px; /* header de escritorio mide ~112px */
  padding: 22px; border: 1px solid var(--color-border); border-radius: 18px; background: var(--color-bg-card); box-shadow: var(--cur-sombra);
}
.curso-compra [hidden] { display: none !important; }
.curso-compra-titulo { display: flex; flex-direction: column; gap: 4px; margin: 0 0 16px; font: inherit; }
.curso-compra-precio { font-size: 34px; font-weight: 700; line-height: 1.1; color: var(--color-text-main); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.curso-compra-precio--txt { font-family: var(--font-display); font-weight: 600; font-size: 26px; }
.curso-compra-sub { color: var(--color-text-muted); font-size: 14px; font-weight: 500; }
.curso-incluye { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 10px; color: var(--color-text-main); font-size: 14px; line-height: 1.45; }
.curso-incluye li { display: grid; grid-template-columns: 18px 1fr; gap: 10px; align-items: start; }
.curso-incluye svg { width: 17px; height: 17px; color: var(--color-primary); margin-top: 1px; }
.curso-compra-nota { margin: 12px 0 0; color: var(--color-text-muted); font-size: 13px; line-height: 1.5; display: flex; gap: 6px; align-items: flex-start; }
.curso-compra-nota svg { width: 14px; height: 14px; flex-shrink: 0; margin-top: 2px; }
.curso-compra-nota a { color: var(--color-primary); font-weight: 600; }
.curso-avance { height: 8px; border-radius: 999px; background: var(--color-bg-input); overflow: hidden; margin: 0 0 16px; }
.curso-avance span { display: block; height: 100%; width: 100%; background: var(--color-success); border-radius: inherit; transform: scaleX(0); transform-origin: left center; transition: transform 0.6s var(--ease-out); }

/* Esqueletos */
.curso-compra-esq, .wh-pay-esq { display: grid; gap: 12px; }
.wh-sk-c {
  display: block; height: 18px; border-radius: 8px;
  background: linear-gradient(90deg, var(--color-bg-input) 0%, var(--color-border-light) 50%, var(--color-bg-input) 100%);
  background-size: 200% 100%; animation: cur-sk 1.3s ease-in-out infinite;
}
.wh-sk-c--precio { height: 36px; width: 55%; }
.wh-sk-c--btn { height: 50px; }
.wh-sk-c--alto { height: 120px; }
@keyframes cur-sk { from { background-position: 100% 0; } to { background-position: -100% 0; } }

/* Flujo de pago */
.curso-flujo:focus { outline: none; }
.curso-flujo { scroll-margin-top: 128px; }
.curso-flujo-cab { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 4px; }
.curso-flujo-titulo { margin: 0; font: 700 18px var(--font-body); color: var(--color-text-main); }
.curso-flujo-concepto { display: flex; justify-content: space-between; gap: 12px; margin: 0 0 16px; padding: 12px 0; border-bottom: 1px solid var(--color-border); color: var(--color-text-muted); font-size: 14px; line-height: 1.4; }
.curso-flujo-concepto strong { color: var(--color-text-main); font-size: 17px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.curso-acepta { margin: 0 0 16px; }
#flujoForm { position: relative; }
#flujoForm.is-montando { visibility: hidden; position: absolute; left: 22px; right: 22px; pointer-events: none; }
#cursoPaymentElement { margin-bottom: 14px; }
.curso-flujo-error { margin: 0 0 12px; padding: 10px 12px; border-radius: 10px; background: var(--color-error-bg); color: var(--color-error); font-size: 14px; }
.curso-estado { text-align: center; padding: 8px 0 4px; }
.curso-estado:focus { outline: none; }
.curso-estado-icono { display: inline-grid; place-items: center; width: 60px; height: 60px; border-radius: 50%; margin-bottom: 10px; background: var(--color-info-bg); color: var(--color-info); }
.curso-estado-icono svg { width: 28px; height: 28px; stroke-width: 1.6; }
.curso-estado[data-tipo="exito"] .curso-estado-icono { background: var(--color-success-bg); color: var(--color-success); }
.curso-estado[data-tipo="error"] .curso-estado-icono { background: var(--color-error-bg); color: var(--color-error); }
.curso-estado[data-tipo="procesando"] .curso-estado-icono,
.curso-estado[data-tipo="pendiente"] .curso-estado-icono { background: var(--color-warning-bg); color: var(--color-warning); }
.curso-estado-titulo { font: 700 19px/1.3 var(--font-body); color: var(--color-text-main); margin: 0 0 8px; text-wrap: balance; }
.curso-estado-msg { color: var(--color-text-muted); font-size: 14.5px; line-height: 1.6; margin: 0 0 16px; }
.curso-estado-msg strong { color: var(--color-text-main); }
.curso-estado-acciones { display: flex; flex-direction: column; align-items: center; gap: 6px; }

.curso-spin { width: 28px; height: 28px; border: 3px solid rgba(255, 255, 255, 0.25); border-top-color: #fff; border-radius: 50%; animation: cur-gira 0.8s linear infinite; }
.curso-spin--btn { width: 16px; height: 16px; border-width: 2px; }
.curso-spin[hidden] { display: none; }
@keyframes cur-gira { to { transform: rotate(360deg); } }

/* Descripción y lecciones */
.curso-seccion + .curso-seccion { margin-top: 44px; }
.curso-descripcion { color: var(--color-text-main); font-size: 16.5px; line-height: 1.7; max-width: 68ch; }
.curso-descripcion p { margin: 0 0 14px; }
.lecciones { list-style: none; margin: 14px 0 0; padding: 0; border: 1px solid var(--color-border); border-radius: var(--cur-radio); background: var(--color-bg-card); overflow: hidden; }
.leccion { display: grid; grid-template-columns: 40px minmax(0, 1fr) auto; gap: 14px; align-items: start; padding: 18px; scroll-margin-top: 110px; transition: background var(--transition-fast), box-shadow var(--transition-normal); }
.leccion + .leccion { border-top: 1px solid var(--color-border); }
.leccion.is-actual { background: var(--color-primary-light); }
.leccion.is-destacada { box-shadow: inset 0 0 0 2px var(--color-accent); }
.leccion-num { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: var(--color-bg-input); color: var(--color-text-muted); font-weight: 700; font-size: 14px; font-variant-numeric: tabular-nums; }
.leccion-ico { display: none; width: 16px; height: 16px; }
.leccion:not(.is-abierta) .leccion-n { display: none; }
.leccion:not(.is-abierta) .leccion-ico--lock { display: block; }
.leccion.is-abierta .leccion-num { background: var(--color-primary-light); color: var(--color-primary); }
.leccion.is-vista .leccion-n { display: none; }
.leccion.is-vista .leccion-ico--vista { display: block; }
.leccion.is-vista .leccion-num { background: var(--color-success-bg); color: var(--color-success); }
.leccion-titulo { margin: 6px 0 4px; font: 600 16px/1.35 var(--font-body); color: var(--color-text-main); }
.leccion-meta { display: flex; flex-wrap: wrap; gap: 4px 14px; margin: 0; color: var(--color-text-muted); font-size: 13.5px; font-variant-numeric: tabular-nums; }
.leccion-meta span { display: inline-flex; align-items: center; gap: 5px; }
.leccion-meta svg { width: 14px; height: 14px; }
.leccion.is-abierta .leccion-estado { color: var(--color-success); font-weight: 600; }
.leccion.is-pendiente .leccion-estado { color: var(--color-warning); font-weight: 600; }
.leccion-desc { margin: 8px 0 0; color: var(--color-text-muted); font-size: 14.5px; line-height: 1.55; max-width: 62ch; }
.leccion-acciones { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; padding-top: 2px; }
.leccion-btn {
  display: inline-flex; align-items: center; gap: 6px; min-height: 40px; padding: 7px 14px; border-radius: 10px;
  border: 1px solid var(--color-border-light); background: transparent; color: var(--color-text-main);
  font: 600 14px var(--font-body); white-space: nowrap; cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}
.leccion-btn[hidden] { display: none; }
.leccion-btn svg { width: 15px; height: 15px; }
.leccion-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.leccion-btn:active { transform: scale(0.97); }
.leccion-btn--ver { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.leccion-btn--ver:hover { background: var(--color-primary-hover); color: #fff; }
.leccion-btn--comprar { border-color: var(--color-primary); color: var(--color-primary); font-variant-numeric: tabular-nums; }
.leccion-btn--comprar:hover { background: var(--color-primary); color: #fff; }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 992px) {
  .curso-hero { grid-template-columns: 1fr; }
  .curso-cuerpo { grid-template-columns: 1fr; }
  .curso-compra { grid-column: 1; grid-row: auto; position: static; }
  .curso-principal { grid-column: 1; grid-row: auto; }
}
@media (max-width: 640px) {
  .curso-wrap { padding: 20px 16px 16px; }
  .curso-escena, .curso-flujo { scroll-margin-top: 88px; }
  .curso-resumen { font-size: 16px; }
  .cursos-filtros { flex-direction: column; align-items: stretch; }
  .cursos-filtros .search-bar { max-width: none; }
  .cursos-niveles { justify-content: flex-start; }
  .cursos-grid { grid-template-columns: 1fr; gap: 16px; }
  .curso-card-pie .cursos-btn { flex: 1; }
  .suelto { grid-template-columns: 72px 1fr; gap: 12px; padding: 12px 14px; }
  .suelto-mini { width: 72px; }
  .suelto-precio { grid-column: 2; }
  .leccion { grid-template-columns: 36px minmax(0, 1fr); padding: 16px 14px; gap: 12px; }
  .leccion-acciones { grid-column: 2; justify-content: flex-start; }
  .leccion-btn { min-height: 44px; }
  .curso-compra { padding: 18px 16px; }
  .curso-escena-nav { width: 100%; justify-content: space-between; }
  #flujoForm.is-montando { left: 16px; right: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  .curso-card, .curso-card-media img, .curso-avance span, .leccion { transition: none; }
  .wh-sk-c, .curso-spin { animation-duration: 0s; animation-iteration-count: 1; }
  .curso-card:hover { transform: none; }
}