/* Escuela de Negocios Latinos — hoja de estilos principal.
   Un solo archivo, sin frameworks: el sitio tiene que cargar rápido y verse
   igual en la computadora del dueño y en el teléfono del alumno. */

:root {
  --tinta: #0a2552;
  --tinta2: #33475b;
  --muted: #64748b;
  --primario: #0d2f6b;
  --primario-osc: #081f4a;
  --primario-claro: #eaf0fa;
  --acento: #f39c12;
  --acento-osc: #b45309;
  --fondo: #f7f9fc;
  --superficie: #ffffff;
  --borde: #dbe4f0;
  --suave: #f2f6fc;
  --peligro: #b91c1c;
  --peligro-claro: #fef2f2;
  --exito: #15803d;
  --exito-claro: #f0fdf4;
  --sombra: 0 10px 30px rgba(10, 37, 82, .08);
  --radio: 14px;
  --contenedor: 1140px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--tinta);
  background: var(--fondo);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primario); text-decoration: none; }
a:hover { color: var(--primario-osc); }
h1, h2, h3, h4 { line-height: 1.18; margin: 0 0 .55em; letter-spacing: -.02em; }
h1 { font-size: clamp(2rem, 4vw, 3.2rem); }
h2 { font-size: clamp(1.45rem, 2.4vw, 2.1rem); }
h3 { font-size: 1.12rem; }
p { margin: 0 0 1em; }
ul, ol { margin-top: 0; }
button, input, select, textarea { font: inherit; }

.contenedor { width: min(var(--contenedor), calc(100% - 40px)); margin: 0 auto; }
.saltar {
  position: absolute; left: -999px; top: 8px; z-index: 100;
  background: var(--tinta); color: #fff; padding: 10px 16px; border-radius: 8px;
}
.saltar:focus { left: 12px; }

/* ── Barra superior ─────────────────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--borde);
}
.topbar-in { display: flex; align-items: center; gap: 24px; min-height: 72px; }
.marca { display: flex; align-items: center; gap: 11px; color: var(--tinta); }
.marca:hover { color: var(--tinta); }
.marca-img { height: 50px; width: auto; display: block; }
.marca-icono {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(145deg, var(--primario), #0b4f4a);
  color: #fff; font-weight: 900; font-size: .84rem; letter-spacing: .02em;
  box-shadow: 0 6px 16px rgba(10, 37, 82, .25);
}
.marca-texto { display: flex; flex-direction: column; line-height: 1.12; }
.marca-texto strong { font-size: .94rem; }
.marca-texto small { font-size: .7rem; color: var(--muted); }
.nav { margin-left: auto; display: flex; align-items: center; gap: 20px; }
.nav a { color: var(--tinta2); font-weight: 600; font-size: .9rem; }
.nav a:hover, .nav a.activo { color: var(--primario); }
.nav-usuario { font-size: .82rem; color: var(--muted); }
.nav-form { margin: 0; }
.menu-btn {
  display: none; margin-left: auto; border: 1px solid var(--borde); background: #fff;
  border-radius: 9px; width: 42px; height: 40px; font-size: 1.2rem; cursor: pointer;
}

/* ── Botones ───────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  border-radius: 10px; border: 1px solid transparent; cursor: pointer;
  padding: 10px 18px; font-weight: 700; font-size: .9rem; line-height: 1.2;
  transition: transform .12s, background .12s, border-color .12s, color .12s;
  text-decoration: none; background: #fff; color: var(--tinta);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primario { background: var(--primario); border-color: var(--primario); color: #fff; }
.btn-primario:hover { background: var(--primario-osc); border-color: var(--primario-osc); color: #fff; }
.btn-borde { background: transparent; border-color: var(--primario); color: var(--primario); }
.btn-borde:hover { background: var(--primario-claro); }
.btn-acento { background: var(--acento); border-color: var(--acento); color: #221a05; }
.btn-acento:hover { background: #fbbf24; color: #221a05; }
.btn-ghost { background: var(--suave); border-color: transparent; color: var(--tinta2); }
.btn-ghost:hover { background: #dff0ec; color: var(--tinta); }
.btn-peligro { background: var(--peligro-claro); color: var(--peligro); border-color: #fecaca; }
.btn-peligro:hover { background: var(--peligro); color: #fff; }
.btn-sm { padding: 7px 12px; font-size: .78rem; border-radius: 8px; }
.btn-lg { padding: 14px 24px; font-size: 1rem; }
.btn-full { width: 100%; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }
.acciones { display: flex; flex-wrap: wrap; gap: 8px; }

/* ── Etiquetas, badges y avisos ────────────────────────────── */
.etiqueta {
  display: inline-block; text-transform: uppercase; letter-spacing: .1em;
  font-size: .7rem; font-weight: 800; color: var(--primario);
  margin-bottom: 9px;
}
.badge {
  display: inline-block; padding: 3px 9px; border-radius: 999px;
  font-size: .7rem; font-weight: 800; background: var(--suave); color: var(--primario-osc);
}
.badge-nivel { background: rgba(255,255,255,.88); color: var(--tinta); }
.badge-gratis { background: #dcfce7; color: #166534; }
.badge-exito, .badge-pagado { background: #dcfce7; color: #166534; }
.badge-pendiente { background: #fef3c7; color: #92400e; }
.badge-reembolsado { background: #e0e7ff; color: #3730a3; }
.badge-cancelado { background: #fee2e2; color: #991b1b; }
.alerta {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin: 14px 0; padding: 11px 14px; border-radius: 10px; font-size: .88rem;
  border: 1px solid var(--borde); background: #fff;
}
.alerta-exito { background: var(--exito-claro); border-color: #bbf7d0; color: #14532d; }
.alerta-error { background: var(--peligro-claro); border-color: #fecaca; color: #7f1d1d; }
.alerta-aviso { background: #fffbeb; border-color: #fde68a; color: #78350f; }
.alerta-cerrar { border: 0; background: none; cursor: pointer; font-size: 1.2rem; color: inherit; }
.aviso-card {
  background: #fffbeb; border: 1px solid #fde68a; border-radius: 12px;
  padding: 14px 16px; margin: 16px 0;
}
.aviso-card strong { display: block; margin-bottom: 4px; }

/* ── Portada ───────────────────────────────────────────────── */
.hero {
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(243,156,18,.22), transparent 60%),
    linear-gradient(135deg, #061731 0%, #0a2552 55%, #0d2f6b 100%);
  color: #fff;
  overflow: hidden;
}
.hero-in {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px;
  align-items: center; padding: 76px 0 72px;
}
.hero .etiqueta { color: #6ee7d8; }
.hero h1 { color: #fff; max-width: 14ch; }
.hero-sub { color: #c7d8d6; font-size: 1.08rem; max-width: 52ch; }
.hero-acciones { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0 30px; }
.hero-datos { display: flex; flex-wrap: wrap; gap: 30px; }
.hero-datos div { display: flex; flex-direction: column; }
.hero-datos strong { font-size: 1.5rem; color: #fff; }
.hero-datos span { font-size: .74rem; color: #a8c1be; }
.hero-tarjeta {
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.16);
  border-radius: 18px; padding: 14px; box-shadow: 0 30px 70px rgba(0,0,0,.28);
  transform: rotate(1.2deg);
}
.hero-tarjeta-top { display: flex; gap: 6px; padding: 2px 2px 12px; }
.punto { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,.28); }
.hero-mini { background: #f8fbfa; border-radius: 12px; padding: 22px; color: var(--tinta); }
.hero-mini-rotulo { font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.hero-barra { height: 7px; background: #e2eeeb; border-radius: 99px; margin: 14px 0 18px; overflow: hidden; }
.hero-barra span { display: block; height: 100%; background: linear-gradient(90deg, var(--primario), #34d399); border-radius: 99px; }
.hero-linea { height: 10px; border-radius: 5px; background: #e6efec; margin-bottom: 8px; }
.hero-linea.corta { width: 62%; margin-bottom: 18px; }
.hero-mini-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.hero-mini-grid div { background: #fff; border: 1px solid #e2eeeb; border-radius: 9px; padding: 9px; display: flex; flex-direction: column; }
.hero-mini-grid b { font-size: .63rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.hero-mini-grid span { font-size: .82rem; font-weight: 800; }

/* ── Secciones ─────────────────────────────────────────────── */
.seccion { padding: 64px 0; }
.seccion-suave { background: var(--suave); }
.seccion-cabeza { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 28px; }
.seccion-cabeza h1, .seccion-cabeza h2 { margin-bottom: .2em; }
.seccion-cabeza.centrada { flex-direction: column; align-items: center; text-align: center; }
.enlace { font-weight: 700; font-size: .86rem; }
.muted { color: var(--muted); }
.mini { font-size: .78rem; }

/* ── Cursos ────────────────────────────────────────────────── */
.cursos-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 22px; }
.curso-card {
  background: var(--superficie); border: 1px solid var(--borde); border-radius: var(--radio);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .15s, box-shadow .15s;
}
.curso-card:hover { transform: translateY(-3px); box-shadow: var(--sombra); }
.curso-card-img {
  position: relative; display: block; aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #0f766e, #0b3b4a); overflow: hidden;
}
.curso-card-img img { width: 100%; height: 100%; object-fit: cover; }
.curso-card-placeholder {
  position: absolute; inset: 0; display: grid; place-items: center;
  color: rgba(255,255,255,.9); font-size: 2.6rem; font-weight: 900; letter-spacing: .04em;
}
.curso-card-img .badge-nivel { position: absolute; left: 12px; top: 12px; }
.curso-card-cuerpo { padding: 18px; display: flex; flex-direction: column; flex: 1; }
.curso-card-cuerpo h3 { margin-bottom: 6px; }
.curso-card-cuerpo h3 a { color: var(--tinta); }
.curso-card-sub { font-size: .84rem; color: var(--muted); margin-bottom: 12px; }
.curso-card-meta { display: flex; flex-wrap: wrap; gap: 12px; font-size: .74rem; color: var(--muted); margin-top: auto; }
.curso-card-pie { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--borde); }
.precio { font-size: 1.15rem; font-weight: 900; color: var(--tinta); }
.vacio { grid-column: 1 / -1; text-align: center; padding: 48px 20px; background: #fff; border: 1px dashed var(--borde); border-radius: var(--radio); color: var(--muted); }
.vacio h2 { color: var(--tinta); }

/* ── Pasos y CTA ───────────────────────────────────────────── */
.pasos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.paso { background: #fff; border: 1px solid var(--borde); border-radius: var(--radio); padding: 24px; }
.paso-num {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%;
  background: var(--primario-claro); color: var(--primario-osc); font-weight: 900; margin-bottom: 14px;
}
.paso p { color: var(--muted); font-size: .88rem; margin: 0; }
.cta {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  background: linear-gradient(135deg, #081f4a, #0d2f6b); color: #fff;
  border-radius: 18px; padding: 34px 38px;
}
.cta h2 { color: #fff; margin-bottom: .2em; }
.cta p { color: #c7d8d6; margin: 0; }

/* ── Ficha de curso ────────────────────────────────────────── */
.curso-hero { background: linear-gradient(135deg, #081f4a, #0d2f6b); color: #fff; padding: 46px 0 52px; }
.curso-hero-in { display: grid; grid-template-columns: 1.3fr .7fr; gap: 44px; align-items: center; }
.curso-hero .miga { color: #a8c1be; display: inline-block; margin-bottom: 14px; }
.curso-hero h1 { color: #fff; margin-top: 12px; }
.curso-hero-sub { color: #c7d8d6; font-size: 1.05rem; max-width: 56ch; }
.curso-hero-meta { display: flex; flex-wrap: wrap; gap: 18px; font-size: .8rem; color: #a8c1be; margin: 16px 0 22px; }
.curso-resumen { background: #fff; color: var(--tinta); border-radius: var(--radio); padding: 24px; box-shadow: var(--sombra); }
.curso-resumen-precio { display: flex; align-items: baseline; gap: 10px; margin-bottom: 16px; }
.precio-grande { font-size: 2rem; font-weight: 900; }
.precio-tachado { color: var(--muted); text-decoration: line-through; }
.lista-check { list-style: none; padding: 0; margin: 0 0 16px; }
.lista-check li { position: relative; padding-left: 24px; margin-bottom: 8px; font-size: .88rem; }
.lista-check li::before { content: "✓"; position: absolute; left: 0; color: var(--primario); font-weight: 900; }
.lista-pasos { padding-left: 20px; font-size: .88rem; color: var(--tinta2); }
.lista-pasos li { margin-bottom: 8px; }
.curso-cuerpo { display: grid; grid-template-columns: 1fr 300px; gap: 40px; align-items: start; }
.texto-largo { white-space: pre-line; color: var(--tinta2); }
.programa { display: flex; flex-direction: column; gap: 12px; }
.programa-modulo { background: #fff; border: 1px solid var(--borde); border-radius: 12px; padding: 16px 18px; }
.programa-modulo-cabeza { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.programa-modulo-cabeza h3 { margin: 0; }
.programa-modulo-cabeza span { font-size: .74rem; color: var(--muted); }
.programa-lecciones { list-style: none; padding: 0; margin: 10px 0 0; }
.programa-lecciones li { display: flex; align-items: center; gap: 9px; padding: 8px 0; border-top: 1px solid var(--fondo); font-size: .86rem; }
.programa-icono { color: var(--primario); font-size: .75rem; width: 16px; }
.programa-leccion { flex: 1; }
.programa-dur { color: var(--muted); font-size: .74rem; }
.curso-lateral { display: flex; flex-direction: column; gap: 16px; }
.card { background: var(--superficie); border: 1px solid var(--borde); border-radius: var(--radio); padding: 22px; margin-bottom: 20px; }
.card h2 { font-size: 1.2rem; margin-bottom: .6em; }
.card h3 { margin-bottom: .6em; }

/* ── Formularios ───────────────────────────────────────────── */
.formulario { display: flex; flex-direction: column; gap: 14px; }
.campo { display: flex; flex-direction: column; gap: 5px; }
.campo label { font-size: .8rem; font-weight: 800; color: var(--tinta2); }
.campo small { color: var(--muted); font-size: .72rem; }
.form-control,
.campo input,
.campo select,
.campo textarea {
  width: 100%; border: 1px solid var(--borde); border-radius: 9px;
  background: #fff; padding: 10px 12px; color: var(--tinta); outline: none;
}
.form-control:focus,
.campo input:focus,
.campo select:focus,
.campo textarea:focus { border-color: var(--primario); box-shadow: 0 0 0 3px rgba(15,118,110,.12); }
.campo textarea { resize: vertical; min-height: 110px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.campo-ancho { grid-column: 1 / -1; }
.check { display: flex; align-items: center; gap: 8px; font-size: .86rem; font-weight: 600; color: var(--tinta2); }
.check input { width: auto; }
.form-acciones { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.form-inline { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.form-inline .form-control { flex: 1 1 180px; }
.form-control.corto { flex: 0 0 76px; }
.form-modulo { display: flex; flex-wrap: wrap; gap: 8px; flex: 1; }
.form-modulo .form-control { flex: 1 1 160px; }
.form-leccion { display: flex; flex-wrap: wrap; gap: 8px; flex: 1; }
.form-leccion .form-control { flex: 1 1 140px; }
.form-leccion input[name="video_url"] { flex: 2 1 260px; }

/* ── Autenticación ─────────────────────────────────────────── */
.auth-seccion { background: linear-gradient(180deg, var(--suave), var(--fondo)); }
.auth-caja { display: flex; justify-content: center; }
.auth-panel { width: min(470px, 100%); background: #fff; border: 1px solid var(--borde); border-radius: 18px; padding: 32px; box-shadow: var(--sombra); }
.auth-panel h1 { font-size: 1.8rem; }
.auth-pie { display: flex; flex-direction: column; gap: 8px; margin-top: 18px; font-size: .82rem; color: var(--muted); }

/* ── Mi aprendizaje ────────────────────────────────────────── */
.mis-cursos { display: flex; flex-direction: column; gap: 14px; }
.mi-curso { display: flex; gap: 16px; background: #fff; border: 1px solid var(--borde); border-radius: 12px; padding: 16px; }
.mi-curso-icono {
  width: 64px; height: 64px; border-radius: 12px; flex: 0 0 auto;
  display: grid; place-items: center; background: linear-gradient(135deg, #0f766e, #0b3b4a);
  color: #fff; font-weight: 900;
}
.mi-curso-cuerpo { flex: 1; min-width: 0; }
.mi-curso-cabeza { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.mi-curso-cabeza h3 { margin: 0; }
.mi-curso-pie { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; font-size: .78rem; color: var(--muted); }
.barra-progreso { height: 8px; background: #e5efec; border-radius: 99px; overflow: hidden; margin: 10px 0 8px; }
.barra-progreso span { display: block; height: 100%; background: linear-gradient(90deg, var(--primario), #2dd4bf); border-radius: 99px; }

/* ── Aula ──────────────────────────────────────────────────── */
.aula { display: grid; grid-template-columns: 310px 1fr; min-height: calc(100vh - 72px); }
.aula-sidebar { background: #fff; border-right: 1px solid var(--borde); padding: 22px 18px 40px; }
.aula-sidebar-cabeza h2 { font-size: 1.05rem; margin: 10px 0; }
.aula-programa { margin-top: 16px; }
.aula-modulo { margin-bottom: 16px; }
.aula-modulo-titulo { font-size: .68rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 800; margin-bottom: 6px; }
.aula-leccion { display: flex; gap: 9px; align-items: flex-start; padding: 8px 9px; border-radius: 8px; color: var(--tinta2); font-size: .82rem; }
.aula-leccion:hover { background: var(--suave); color: var(--tinta); }
.aula-leccion.activa { background: var(--primario-claro); color: var(--primario-osc); font-weight: 700; }
.aula-check { color: var(--muted); font-size: .8rem; }
.aula-check.hecha { color: var(--primario); font-weight: 900; }
.aula-main { padding: 22px 34px 54px; min-width: 0; }
.aula-barra { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.aula-video { background: #0b1f33; border-radius: 14px; overflow: hidden; aspect-ratio: 16 / 9; margin-bottom: 24px; }
.aula-video iframe, .aula-video video { width: 100%; height: 100%; border: 0; display: block; background: #000; }
.aula-video-pendiente { height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; color: #c7d8d6; padding: 24px; }
.aula-video-icono { width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center; background: rgba(255,255,255,.12); font-size: 1.4rem; margin-bottom: 12px; }
.aula-video-pendiente strong { color: #fff; }
.aula-contenido { max-width: 900px; }
.aula-contenido h1 { font-size: clamp(1.6rem, 2.8vw, 2.2rem); }
.aula-acciones { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--borde); }
.aula-nav { display: flex; gap: 8px; }

/* ── Checkout y éxito ──────────────────────────────────────── */
.checkout-grid { display: grid; grid-template-columns: 1fr 340px; gap: 36px; align-items: start; margin-top: 18px; }
.checkout-resumen { background: #fff; border: 1px solid var(--borde); border-radius: var(--radio); padding: 22px; position: sticky; top: 92px; }
.fila-total { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--fondo); font-size: .88rem; }
.fila-total:last-child { border-bottom: 0; }
.fila-total.total { font-size: 1.2rem; font-weight: 900; padding-top: 14px; }
.exito-caja { max-width: 620px; margin: 0 auto; text-align: center; background: #fff; border: 1px solid var(--borde); border-radius: 18px; padding: 46px 32px; box-shadow: var(--sombra); }
.exito-icono { display: grid; place-items: center; width: 76px; height: 76px; border-radius: 50%; margin: 0 auto 16px; background: var(--exito-claro); color: var(--exito); font-size: 2rem; font-weight: 900; }
.exito-datos { display: flex; justify-content: center; gap: 34px; margin: 22px 0; }
.exito-datos div { display: flex; flex-direction: column; }
.exito-datos span { font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.exito-datos strong { font-size: 1.1rem; }

/* ── Admin ─────────────────────────────────────────────────── */
.admin-nav { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 24px; border-bottom: 1px solid var(--borde); }
.admin-nav a { padding: 9px 14px; font-weight: 700; font-size: .86rem; color: var(--muted); border-bottom: 3px solid transparent; }
.admin-nav a.activo { color: var(--primario); border-bottom-color: var(--primario); }
.metricas { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 22px; }
.metrica { background: #fff; border: 1px solid var(--borde); border-radius: 12px; padding: 18px; display: flex; flex-direction: column; }
.metrica span { font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 800; }
.metrica strong { font-size: 1.7rem; line-height: 1.2; margin: 4px 0; }
.metrica small { font-size: .74rem; color: var(--muted); }
.tabla-wrap { overflow-x: auto; }
.tabla { width: 100%; border-collapse: collapse; font-size: .85rem; }
.tabla th { text-align: left; font-size: .69rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding: 9px 10px; border-bottom: 1px solid var(--borde); white-space: nowrap; }
.tabla td { padding: 11px 10px; border-bottom: 1px solid var(--fondo); vertical-align: middle; }
.tabla tr:hover td { background: #fbfdfc; }
.acciones-tabla { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
.acciones-tabla form { margin: 0; }
.admin-modulo { padding: 18px; }
.admin-modulo-cabeza { display: flex; align-items: flex-start; gap: 10px; padding-bottom: 12px; border-bottom: 1px solid var(--borde); }
.admin-lecciones { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.admin-leccion { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-start; background: #fbfdfc; border: 1px solid var(--fondo); border-radius: 9px; padding: 9px; }
.admin-leccion form:last-child { margin: 0; }
.admin-leccion.nueva { border-style: dashed; border-color: var(--borde); }
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }

/* ── Legal y errores ──────────────────────────────────────── */
.legal { max-width: 780px; }
.legal h2 { font-size: 1.25rem; margin-top: 1.4em; }
.legal p, .legal li { color: var(--tinta2); }
.error-caja { max-width: 560px; margin: 0 auto; text-align: center; padding: 40px 20px; }
.error-codigo { display: block; font-size: 4rem; font-weight: 900; color: var(--primario); line-height: 1; }

/* ── Pie ───────────────────────────────────────────────────── */
.pie { background: #071b2b; color: #c7d8d6; margin-top: 40px; }
.pie-in { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 34px; padding: 44px 0 30px; }
.pie-marca strong { color: #fff; font-size: 1.05rem; }
.pie-marca p { font-size: .84rem; margin-top: 8px; max-width: 38ch; }
.pie-col { display: flex; flex-direction: column; gap: 7px; font-size: .84rem; }
.pie-col a { color: #b7cdca; }
.pie-col a:hover { color: #fff; }
.pie-titulo { color: #fff; font-weight: 800; font-size: .76rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 4px; }
.pie-final { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; padding: 16px 0 24px; border-top: 1px solid rgba(255,255,255,.12); font-size: .72rem; color: #8fa8a4; }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 980px) {
  .hero-in, .curso-hero-in, .curso-cuerpo, .checkout-grid { grid-template-columns: 1fr; }
  .hero-tarjeta { transform: none; max-width: 460px; }
  .curso-lateral { display: grid; grid-template-columns: 1fr 1fr; }
  .checkout-resumen { position: static; }
  .metricas { grid-template-columns: repeat(2, 1fr); }
  .aula { grid-template-columns: 1fr; }
  .aula-sidebar { border-right: 0; border-bottom: 1px solid var(--borde); }
  .aula-programa { max-height: 42vh; overflow-y: auto; }
}
@media (max-width: 760px) {
  .contenedor { width: min(100% - 28px, var(--contenedor)); }
  .menu-btn { display: block; }
  .nav {
    display: none; position: absolute; left: 14px; right: 14px; top: 68px;
    background: #fff; border: 1px solid var(--borde); border-radius: 12px;
    box-shadow: var(--sombra); padding: 14px; flex-direction: column;
    align-items: stretch; gap: 12px; margin-left: 0;
  }
  .nav.abierto { display: flex; }
  .nav-form .btn { width: 100%; }
  .hero-in { padding: 50px 0; }
  .hero h1 { max-width: none; }
  .hero-datos { gap: 20px; }
  .seccion { padding: 46px 0; }
  .seccion-cabeza { flex-direction: column; align-items: flex-start; }
  .pasos, .curso-lateral { grid-template-columns: 1fr; }
  .cta { flex-direction: column; align-items: flex-start; padding: 26px; }
  .form-grid { grid-template-columns: 1fr; }
  .curso-cuerpo { gap: 20px; }
  .aula-main { padding: 18px 16px 40px; }
  .mi-curso { flex-direction: column; }
  .mi-curso-icono { width: 52px; height: 52px; }
  .auth-panel { padding: 24px; }
  .pie-in { grid-template-columns: 1fr; gap: 22px; }
  .metricas { grid-template-columns: 1fr; }
  .exito-datos { flex-direction: column; gap: 12px; }
}

/* ── Fase 2: cupones, recursos y certificados ─────────────── */
.cupon-caja {
  background: var(--suave); border: 1px solid var(--borde); border-radius: 12px;
  padding: 16px; margin: 16px 0;
}
.cupon-fila { display: flex; gap: 8px; align-items: center; }
.cupon-fila input {
  flex: 1; border: 1px solid var(--borde); border-radius: 9px; padding: 10px 12px;
  background: #fff; text-transform: uppercase;
}
.cupon-error { color: var(--peligro); font-size: .8rem; margin: 8px 0 0; }
.descuento { color: var(--exito); font-weight: 700; }

.recurso-lista { list-style: none; padding: 0; margin: 0; }
.recurso-lista li {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 12px;
  padding: 11px 0; border-top: 1px solid var(--borde);
}
.recurso-lista li:first-child { border-top: 0; }
.recurso-icono {
  width: 34px; height: 34px; border-radius: 8px; display: grid; place-items: center;
  background: var(--primario-claro); color: var(--primario); flex: 0 0 auto;
}
.recurso-titulo { font-weight: 700; font-size: .88rem; }
.recurso-desc { font-size: .76rem; color: var(--muted); }

.certificado-marco {
  max-width: 980px; margin: 0 auto; background: #fff; color: var(--tinta);
  border: 1px solid var(--borde); box-shadow: var(--sombra); padding: 12px;
}
.certificado-hoja {
  border: 2px solid var(--primario); padding: 42px 48px; text-align: center;
  position: relative; background:
    radial-gradient(circle at 100% 0, rgba(243,156,18,.10), transparent 35%),
    #fff;
}
.certificado-hoja::after {
  content: ""; position: absolute; inset: 10px; border: 1px solid var(--acento);
  pointer-events: none;
}
.certificado-logo { height: 92px; margin: 0 auto 12px; }
.certificado-rotulo { font-size: .76rem; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); font-weight: 800; }
.certificado-titulo { font-size: clamp(1.6rem, 4vw, 2.7rem); color: var(--primario); margin: 10px 0 22px; }
.certificado-nombre { font-size: clamp(1.6rem, 4vw, 2.5rem); color: var(--tinta); margin: 6px 0; }
.certificado-curso { font-size: clamp(1rem, 2.3vw, 1.4rem); color: var(--tinta2); font-weight: 700; }
.certificado-codigo { margin-top: 26px; font-size: .78rem; color: var(--muted); }
.certificado-firma { margin-top: 34px; display: inline-block; border-top: 1px solid var(--tinta2); padding-top: 7px; min-width: 240px; font-size: .8rem; }
.certificado-acciones { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 18px; }

.cuenta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: start; }
@media (max-width: 760px) { .cuenta-grid { grid-template-columns: 1fr; } }

.pie-logo { height: 64px; width: auto; margin-bottom: 10px; background: #fff; border-radius: 8px; padding: 4px 8px; }

@media print {
  .topbar, .pie, .certificado-acciones, .migas, .saltar { display: none !important; }
  body { background: #fff; }
  .seccion { padding: 0; }
  .certificado-marco { box-shadow: none; border: 0; padding: 0; max-width: none; }
  .certificado-hoja { border-width: 2px; }
}