/* ═══════════════════════════════════════════════════════════════
   LEGALMENTE CLAROS — HOJA DE ESTILOS MODERNA
   Paleta Editorial de Alta Gama: Deep Midnight Navy & Oro Imperial
   Tipografía: Newsreader + IBM Plex Sans + IBM Plex Mono
   ═══════════════════════════════════════════════════════════════ */

:root {
  --navy: #0f2340;
  --navy-dark: #0a1628;
  --navy-surface: #142a4a;
  --gold: #c9a227;
  --gold2: #e8c547;
  --gold-accessible: #8c6700; /* Contraste WCAG AA >= 4.5:1 sobre fondo claro */
  --gold-light: #fef9e7;
  --gold-glow: rgba(201, 162, 39, 0.25);
  --gold-border: rgba(201, 162, 39, 0.35);

  --bg: #f8f7f4;
  --bg-card: #ffffff;
  --bg-card-hover: #faf9f6;
  --border: #e2ded4;
  --border-subtle: #eeece5;
  
  --text: #19212e;
  --text-muted: #4b5563; /* Mejor contraste WCAG AA 4.6:1 */
  --text-subtle: #6b7280;
  --text-white: #ffffff;

  --green: #059669;
  --green-bg: #ecfdf5;
  --coral: #dc2626;
  --coral-bg: #fef2f2;
  --blue: #2563eb;
  --blue-bg: #eff6ff;

  --serif: 'Newsreader', Georgia, serif;
  --sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --mono: 'IBM Plex Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(10, 22, 40, 0.04);
  --shadow-md: 0 8px 24px -4px rgba(10, 22, 40, 0.08);
  --shadow-lg: 0 16px 36px -8px rgba(10, 22, 40, 0.14);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: #f7f6f2;
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('/marmol.jpg');
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
  z-index: -2;
  pointer-events: none;
  opacity: 0.96;
}

body.visor::before {
  display: none !important;
}

a {
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.15s ease, opacity 0.15s ease;
}
a:hover {
  color: var(--gold-accessible);
}

:focus-visible {
  outline: 3px solid var(--navy);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px var(--gold-glow);
}

/* ── Banner de Cookies y Privacidad ── */
.banner-cookies {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #0a1628;
  color: #fff;
  border-top: 2px solid var(--gold);
  padding: 1.1rem 1.5rem;
  z-index: 8000;
  box-shadow: 0 -4px 25px rgba(0,0,0,.35);
  font-family: var(--sans);
  font-size: .88rem;
  line-height: 1.55;
  transition: transform .3s ease, opacity .3s ease;
}
.banner-cookies.oculto {
  transform: translateY(100%);
  opacity: 0;
  pointer-events: none;
}
.banner-cookies-inner {
  max-width: 68rem;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.banner-cookies-text {
  flex: 1;
  min-width: 260px;
}
.banner-cookies-text a {
  color: var(--gold2);
  text-decoration: underline;
  font-weight: 600;
}
.banner-cookies-actions {
  display: flex;
  align-items: center;
  gap: .8rem;
  flex-shrink: 0;
}
.btn-cookies-ok {
  background: var(--gold);
  color: #0a1628;
  border: none;
  font-weight: 800;
  font-size: .88rem;
  padding: .55rem 1.2rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background .15s ease;
}
.btn-cookies-ok:hover {
  background: var(--gold2);
}
.btn-cookies-link {
  color: #cbd5e1;
  text-decoration: underline;
  font-size: .82rem;
}
.btn-cookies-link:hover {
  color: #fff;
}

.contenedor {
  max-width: 68rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
}
.estrecho { max-width: 32rem; }

/* ── Cabecera Superior Moderna ── */
.barra {
  background: var(--navy-dark);
  color: var(--text-white);
  border-bottom: 1px solid var(--gold-border);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
}
.barra .contenedor {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  min-height: 4.25rem;
}
.marca {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  color: #fff;
  text-decoration: none !important;
}
.marca .monograma {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--gold), var(--gold2));
  color: var(--navy-dark);
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 900;
}
.marca span {
  color: var(--gold2);
  font-style: italic;
}

.barra nav {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  font-size: 0.92rem;
}
.barra nav a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}
.barra nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}
.barra nav a.enlace-destacado {
  background: rgba(201, 162, 39, 0.18);
  border: 1px solid var(--gold-border);
  color: var(--gold2);
}
.barra nav a.enlace-destacado:hover {
  background: var(--gold);
  color: var(--navy-dark);
}

/* Insignia de Usuario y Maestro */
.usuario-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  background: rgba(255, 255, 255, 0.08);
  padding: 0.35rem 0.85rem;
  border-radius: 40px;
  font-size: 0.86rem;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.usuario-chip .avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--navy-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
}
.badge-maestro {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: linear-gradient(135deg, #d97706, #f59e0b);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.35);
}

/* ── Hero Banner ── */
.portada {
  background: linear-gradient(135deg, #0a1628 0%, #12304f 100%);
  color: #fff;
  padding: 5rem 0 4.5rem;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--gold-border);
}
.portada::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.portada .contenedor { position: relative; z-index: 2; }
.portada .kicker {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--gold2);
  margin-bottom: 0.8rem;
  font-weight: 600;
}
.portada h1 {
  font-family: var(--serif);
  font-size: clamp(2.3rem, 5.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem;
  max-width: 22ch;
}
.portada p {
  font-size: 1.15rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
  max-width: 52ch;
  margin: 0 0 2.2rem;
}

/* ── Botones ── */
button, .boton {
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  background: var(--navy);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
button:hover, .boton:hover {
  background: var(--navy-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
button.oro, .boton.oro {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold2) 100%);
  color: var(--navy-dark);
  border-color: rgba(255, 255, 255, 0.2);
  font-weight: 700;
}
button.oro:hover, .boton.oro:hover {
  filter: brightness(1.06);
  box-shadow: 0 6px 18px rgba(201, 162, 39, 0.38);
}
button.secundario, .boton.secundario {
  background: #fff;
  color: var(--navy);
  border: 1px solid var(--border);
  box-shadow: none;
}
button.secundario:hover, .boton.secundario:hover {
  background: var(--bg);
  border-color: var(--text-muted);
}
button.peligro, .boton.peligro {
  background: var(--coral);
  color: #fff;
}
button:disabled, .boton:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ── Grid de Cuadernillos Moderno ── */
.cuadernillos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(20rem, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.cuadernillo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
  position: relative;
  z-index: 2;
  overflow: hidden;
}
.cuadernillo-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--navy), var(--gold));
  opacity: 0.85;
}
.cuadernillo-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--gold);
}

.cuadernillo-card .tags-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  margin-bottom: 0.9rem;
  flex-wrap: wrap;
}
.chip-curso {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.65rem;
  border-radius: 20px;
  background: var(--blue-bg);
  color: var(--blue);
  border: 1px solid rgba(37, 99, 235, 0.2);
}
.chip-fase {
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.cuadernillo-card h3 {
  font-family: var(--serif);
  font-size: 1.32rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--navy);
  margin: 0 0 0.75rem;
}
.cuadernillo-card .detalles {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.cuadernillo-card .detalles span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.cuadernillo-card .pie-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border-subtle);
  margin-top: auto;
}
.cuadernillo-card .badge-estado {
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--green);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.cuadernillo-card .badge-maestro-card {
  font-size: 0.74rem;
  font-weight: 800;
  color: #b45309;
  background: var(--gold-light);
  border: 1px solid var(--gold-border);
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
}

/* ── Panel de Control / Dashboard ── */
.panel-seccion {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
}
.panel-seccion h2 {
  font-family: var(--serif);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--navy);
  margin: 0 0 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.panel-seccion .subtitulo {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 1.4rem;
}

/* Barra de Búsqueda y Filtro */
.barra-filtros {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}
.busqueda-input {
  flex: 1;
  min-width: 16rem;
  position: relative;
}
.busqueda-input input {
  width: 100%;
  padding: 0.7rem 1rem 0.7rem 2.6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  background: #fff;
  transition: border-color 0.2s ease;
}
.busqueda-input input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-glow);
}
.busqueda-input .icono-lupa {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-subtle);
  font-size: 1rem;
  pointer-events: none;
}

/* Formulario Canje */
.form-canje-moderno {
  display: flex;
  gap: 0.75rem;
  max-width: 32rem;
  margin-top: 1rem;
}
.form-canje-moderno input {
  flex: 1;
  padding: 0.75rem 1.1rem;
  font-family: var(--mono);
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 2px dashed var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  transition: all 0.2s ease;
}
.form-canje-moderno input:focus {
  border-color: var(--gold);
  background: #fff;
  border-style: solid;
}

/* Dispositivos */
.dispositivos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: 1rem;
  margin-top: 1.2rem;
}
.dispositivo-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.2rem;
  background: var(--bg);
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  position: relative;
}
.dispositivo-card.actual {
  border-color: var(--green);
  background: #fff;
  box-shadow: 0 0 0 1px var(--green);
}
.dispositivo-icono {
  font-size: 1.6rem;
  line-height: 1;
}
.dispositivo-card .detalles b {
  color: var(--navy);
  font-size: 0.95rem;
  display: block;
}
.dispositivo-card .detalles span {
  font-size: 0.82rem;
  color: var(--text-muted);
}
.tag-actual {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--green);
  background: var(--green-bg);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  margin-top: 0.3rem;
}

/* ── Formularios y Entradas ── */
label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.35rem;
}
input[type=text], input[type=email], input[type=password], input[type=number], select, textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  font: inherit;
  color: var(--text);
  transition: all 0.2s ease;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-glow);
  outline: none;
}
.campo { margin-bottom: 1.2rem; }
.casilla {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  font-size: 0.88rem;
  color: var(--text-muted);
}
.casilla input {
  margin-top: 0.25rem;
  width: auto;
  accent-color: var(--navy);
}

/* Pestañas */
.pestanas {
  display: flex;
  gap: 0.5rem;
  border-bottom: 2px solid var(--border);
  margin-bottom: 1.75rem;
}
.pestanas button {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--text-muted);
  font-weight: 600;
  padding: 0.7rem 1.2rem;
  border-radius: 0;
  box-shadow: none;
  margin-bottom: -2px;
}
.pestanas button:hover {
  background: none;
  color: var(--navy);
  transform: none;
}
.pestanas button[aria-selected=true] {
  color: var(--navy);
  border-bottom-color: var(--gold);
}

/* Avisos */
.aviso {
  padding: 0.9rem 1.2rem;
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--coral);
  background: var(--coral-bg);
  color: #991b1b;
  font-size: 0.92rem;
  margin: 1rem 0;
}
.aviso.bien {
  border-color: var(--green);
  background: var(--green-bg);
  color: #065f46;
}
.oculto { display: none !important; }

/* ── Visor de Lectura ── */
body.visor {
  background: #fdfbf7;
}
.visor .barra .contenedor {
  max-width: 1340px;
}
.lectura {
  max-width: 1320px;
  width: 100%;
  margin: 0 auto;
  padding: 2.2rem 2rem 8rem;
  font-family: var(--serif);
  font-size: 1.08rem;
  line-height: 1.8;
  box-sizing: border-box;
}
@media (min-width: 1600px) {
  .visor .barra .contenedor {
    max-width: 1440px;
  }
  .lectura {
    max-width: 1440px;
  }
}
.seccion-num {
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  border-top: 1px dashed var(--border);
  padding-top: 1rem;
  margin: 3.5rem 0 1.5rem;
  text-align: center;
}
.cargando {
  text-align: center;
  color: var(--text-muted);
  font-family: var(--sans);
  font-size: 0.92rem;
  padding: 2.5rem 0;
}

/* Pantalla de bloqueo */
.bloqueo {
  max-width: 32rem;
  margin: 15vh auto;
  padding: 2.5rem;
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  text-align: center;
}
.bloqueo h2 {
  font-family: var(--serif);
  color: var(--coral);
  font-size: 1.5rem;
  margin-bottom: 0.8rem;
}
.bloqueo p { color: var(--text-muted); line-height: 1.6; }

/* Catálogo Fichas */
.catalogo { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr)); }
.ficha {
  background: #fff;
  border: 1px solid var(--border);
  border-top: 4px solid var(--gold);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}
.ficha:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.ficha .curso { font-size: 0.8rem; color: var(--blue); font-weight: 700; text-transform: uppercase; margin-bottom: 0.4rem; }
.ficha h3 { font-family: var(--serif); font-size: 1.2rem; color: var(--navy); margin: 0 0 0.5rem; }
.precios { margin: 1rem 0; font-size: 0.95rem; }
.precios b { font-weight: 700; color: var(--navy); }
.pack { color: var(--green); display: block; font-weight: 600; font-size: 0.86rem; margin-top: 0.25rem; }

/* Listas clásicas */
.lista { list-style: none; padding: 0; margin: 0; }
.lista li { padding: 0.9rem 0; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
.lista li:last-child { border-bottom: none; }

/* Pie de página */
footer.pie-sitio {
  position: relative;
  z-index: 2;
  margin-top: auto;
  padding: 2.5rem 0;
  background: var(--navy-dark);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.88rem;
  border-top: 1px solid var(--gold-border);
}
footer.pie-sitio a { color: var(--gold2); }

@media (max-width: 768px) {
  .barra .contenedor { min-height: 3.75rem; }
  .cuadernillos-grid { grid-template-columns: 1fr; }
  .form-canje-moderno { flex-direction: column; }
  .portada h1 { font-size: 2.2rem; }
  .panel-seccion { padding: 1.3rem; }
}

/* ── Protección Estricta Anti-Impresión ── */
@media print {
  #lectura, .barra, #centinela, #pie, .page, #portada, [class*="paleta-"], .seccion-num, .bloque, .chap-box {
    display: none !important;
    visibility: hidden !important;
    height: 0 !important;
    max-height: 0 !important;
    overflow: hidden !important;
  }
  #bloqueo-impresion {
    display: block !important;
    visibility: visible !important;
    position: fixed !important;
    inset: 0 !important;
    background: #fff !important;
    z-index: 2147483647 !important;
  }

  /* Excepción: Modo Examen habilitado por el docente */
  body.modo-impresion-habilitada #bloqueo-impresion {
    display: none !important;
    visibility: hidden !important;
  }
  body.modo-impresion-habilitada #lectura,
  body.modo-impresion-habilitada .page,
  body.modo-impresion-habilitada .chap-box,
  body.modo-impresion-habilitada .bloque,
  body.modo-impresion-habilitada [class*="paleta-"] {
    display: block !important;
    visibility: visible !important;
    height: auto !important;
    max-height: none !important;
    overflow: visible !important;
  }
  body.modo-impresion-habilitada .barra,
  body.modo-impresion-habilitada #centinela,
  body.modo-impresion-habilitada #pie,
  body.modo-impresion-habilitada .seccion-num {
    display: none !important;
  }
}

/* ── Tarjeta de Activación de Licencia en Panel ── */
.tarjeta-activacion {
  background: linear-gradient(135deg, rgba(201, 162, 39, 0.08), rgba(15, 35, 64, 0.04));
  border: 2px dashed var(--gold);
  border-radius: var(--radius-md);
  padding: 2.2rem;
  margin-bottom: 2rem;
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}
.icono-activacion {
  font-size: 2.5rem;
  background: #fff;
  width: 58px;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--gold-border);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}
.contenido-activacion {
  flex: 1;
}
.contenido-activacion h3 {
  font-family: var(--serif);
  color: var(--navy);
  font-size: 1.4rem;
  margin: 0 0 0.5rem;
}
.contenido-activacion p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0 0 1.25rem;
}
.form-activacion-rapida {
  display: flex;
  gap: 0.75rem;
  max-width: 32rem;
}
.form-activacion-rapida input {
  flex: 1 1 auto;
  min-width: 0;
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--navy);
  font-family: var(--mono);
  font-size: 1.05rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 600;
  border: 2px solid var(--border);
}
.form-activacion-rapida input::placeholder { color: #94a3b8; letter-spacing: 1px; }
.form-activacion-rapida input:focus {
  border-color: var(--gold);
}

/* ═══════════════════════════════════════════════════════════════
   CARRITO INTERACTIVO, VITRINA Y BOTÓN WHATSAPP
   ═══════════════════════════════════════════════════════════════ */

/* Botón Flotante del Carrito */
.boton-flotante-carrito {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
  color: #fff;
  border: 2px solid var(--gold);
  border-radius: 50px;
  padding: 0.85rem 1.6rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 10px 30px rgba(10, 22, 40, 0.35);
  cursor: pointer;
  z-index: 99;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.boton-flotante-carrito:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 14px 36px rgba(201, 162, 39, 0.35);
  border-color: var(--gold2);
}
.contador-carrito {
  background: var(--gold);
  color: var(--navy-dark);
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 800;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
}

/* Overlay y Panel Deslizante (Drawer) */
.carrito-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 22, 40, 0.65);
  backdrop-filter: blur(4px);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}
.carrito-overlay.abierto {
  opacity: 1;
  visibility: visible;
}

.carrito-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 28rem;
  background: #ffffff;
  z-index: 1001;
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.carrito-drawer.abierto {
  transform: translateX(0);
}

.carrito-cabecera {
  padding: 1.4rem 1.5rem;
  background: var(--navy-dark);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--gold);
}
.carrito-cabecera h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.35rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.btn-cerrar-carrito {
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1.6rem;
  cursor: pointer;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  line-height: 1;
  box-shadow: none;
}
.btn-cerrar-carrito:hover {
  background: rgba(255, 255, 255, 0.1);
}

.carrito-cuerpo {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.carrito-vacio {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}
.carrito-vacio .icono {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  opacity: 0.7;
}

/* Ítems del Carrito */
.carrito-lista {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.carrito-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1.1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  transition: border-color 0.2s;
}
.carrito-item:hover {
  border-color: var(--gold-border);
}
.carrito-item-info {
  flex: 1;
}
.carrito-item-curso {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--navy);
  letter-spacing: 0.05em;
}
.carrito-item-titulo {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  margin: 0.15rem 0 0.25rem;
}
.carrito-item-precio {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--gold);
}
.btn-eliminar-item {
  background: transparent;
  border: none;
  color: var(--coral);
  cursor: pointer;
  padding: 0.3rem 0.5rem;
  font-size: 1.1rem;
  border-radius: 4px;
  box-shadow: none;
}
.btn-eliminar-item:hover {
  background: var(--coral-bg);
}

/* Selector de Modalidad (Individual / Dúo / Grupo) */
.seccion-modalidad {
  background: #fdfbf7;
  border: 1px solid var(--gold-border);
  border-radius: var(--radius-sm);
  padding: 1rem;
}
.seccion-modalidad-titulo {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.opciones-modalidad {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.opcion-modalidad {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
  transition: all 0.15s ease;
}
.opcion-modalidad:hover {
  border-color: var(--gold);
  background: var(--gold-light);
}
.opcion-modalidad.seleccionada {
  border-color: var(--gold);
  background: var(--gold-light);
  box-shadow: 0 0 0 1px var(--gold);
}
.opcion-modalidad input[type="radio"] {
  accent-color: var(--gold);
  margin: 0;
  cursor: pointer;
}
.opcion-modalidad-texto {
  flex: 1;
  font-size: 0.86rem;
  line-height: 1.3;
}
.opcion-modalidad-texto b {
  color: var(--navy);
}
.opcion-modalidad-badge {
  font-size: 0.74rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  background: var(--green-bg);
  color: var(--green);
}

/* Pie del Carrito con Resumen y Botón WhatsApp */
.carrito-pie {
  padding: 1.4rem 1.5rem;
  background: #ffffff;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.fila-resumen {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.92rem;
  color: var(--text-muted);
}
.fila-resumen.descuento {
  color: var(--green);
  font-weight: 600;
}
.fila-resumen.total {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--navy);
  padding-top: 0.5rem;
  border-top: 1px dashed var(--border);
}
.fila-resumen.total span:last-child {
  color: var(--gold);
  font-family: var(--mono);
}

.boton-whatsapp-checkout {
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%) !important;
  color: #ffffff !important;
  font-size: 1.05rem !important;
  font-weight: 700 !important;
  padding: 0.9rem 1.25rem !important;
  border-radius: var(--radius-sm) !important;
  border: none !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 0.6rem !important;
  box-shadow: 0 6px 18px rgba(37, 211, 102, 0.35) !important;
  cursor: pointer;
  text-decoration: none !important;
  transition: all 0.2s ease !important;
}
.boton-whatsapp-checkout:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 10px 24px rgba(37, 211, 102, 0.45) !important;
  filter: brightness(1.05);
}

/* Estilos de Tarjetas en la Vitrina */
.tarjeta-vitrina {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.7rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}
.tarjeta-vitrina::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--navy), var(--gold));
}
.tarjeta-vitrina:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--gold);
}
.vitrina-encabezado {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.vitrina-curso {
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--blue);
  background: var(--blue-bg);
  padding: 0.25rem 0.65rem;
  border-radius: 20px;
  border: 1px solid rgba(37, 99, 235, 0.2);
}
.vitrina-fase {
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--navy);
  background: var(--gold-light);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--gold-border);
}
.vitrina-titulo {
  font-family: var(--serif);
  font-size: 1.35rem;
  color: var(--navy);
  margin: 0.4rem 0 0.6rem;
  line-height: 1.3;
}
.vitrina-secciones {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.vitrina-precio-fila {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px dashed var(--border);
}
.vitrina-precio {
  font-family: var(--mono);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--navy);
}
.vitrina-precio small {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}
.vitrina-acciones {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.btn-wpp-directo {
  background: #f0fdf4 !important;
  color: #166534 !important;
  border: 1px solid #bbf7d0 !important;
  font-size: 0.86rem !important;
  font-weight: 600 !important;
  padding: 0.55rem 0.9rem !important;
  text-decoration: none !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 0.4rem !important;
  box-shadow: none !important;
  border-radius: var(--radius-sm) !important;
}
.btn-wpp-directo:hover {
  background: #dcfce7 !important;
  border-color: #86efac !important;
  transform: none !important;
}

/* ═══════════════════════════════════════════════════════════════
   FONDO CON VIDEO SCRUBBING ESTILO APPLE (HTML5 + SCROLL LERP)
   Centrado, gran formato, integración estética mármol y mazo
   ═══════════════════════════════════════════════════════════════ */
.video-fondo-scrub-wrap {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 98vw;
  max-width: 1420px;
  height: 98vh;
  pointer-events: none;
  z-index: -1;
  mix-blend-mode: multiply;
  opacity: 0.78;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  mask-image: radial-gradient(ellipse at center, black 60%, transparent 92%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 60%, transparent 92%);
  transition: opacity 0.4s ease;
}

.video-fondo-scrub-wrap video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  filter: contrast(1.18) brightness(1.08);
  will-change: transform;
}

/* En tablets y móviles se adapta armónicamente */
@media (max-width: 900px) {
  .video-fondo-scrub-wrap {
    width: 90vw;
    height: 70vh;
    opacity: 0.35;
  }
}

@media (max-width: 480px) {
  .video-fondo-scrub-wrap {
    width: 98vw;
    height: 60vh;
    opacity: 0.22;
  }
}

/* ── Cabecera en celular: los enlaces bajan a una segunda línea en vez de salirse de la pantalla ── */
@media (max-width: 768px) {
  body:not(.visor) .barra .contenedor { flex-wrap: wrap; row-gap: .4rem; padding-block: .5rem; }
  body:not(.visor) .barra nav { flex-wrap: wrap; gap: .35rem; justify-content: flex-end; margin-left: auto; min-width: 0; font-size: .84rem; }
  body:not(.visor) .barra nav > a, body:not(.visor) .barra nav > button { padding: .35rem .65rem !important; font-size: .8rem !important; }
  .marca { font-size: 1.15rem; }
}
@media (max-width: 520px) {
  .usuario-chip #nombre { display: none; }
  body:not(.visor) .barra nav { justify-content: flex-start; margin-left: 0; width: 100%; }
}

/* ── Páginas legales en celular: las tablas se desplazan dentro de su caja y no ensanchan la página ── */
@media (max-width: 768px) {
  body > main { min-width: 0 !important; max-width: 100% !important; }
  main table { display: block !important; max-width: 100% !important; overflow-x: auto; -webkit-overflow-scrolling: touch; }
}

/* ── Banner de cookies: versión corta en celular y siempre debajo de los avisos de la cuenta ── */
.banner-cookies { z-index: 7900; }
.banner-cookies .bc-corto { display: none; }
@media (max-width: 640px) {
  .banner-cookies { padding: .7rem .9rem calc(.7rem + env(safe-area-inset-bottom, 0px)); font-size: .8rem; }
  .banner-cookies .bc-largo { display: none; }
  .banner-cookies .bc-corto { display: inline; }
  .banner-cookies-inner { gap: .55rem; }
  .banner-cookies-actions { gap: .6rem; }
  .btn-cookies-ok { padding: .45rem 1rem; font-size: .82rem; }
}

/* ── Canje de licencia en celular: tarjeta en una columna y campo del código a todo el ancho ── */
@media (max-width: 640px) {
  .tarjeta-activacion { flex-direction: column; align-items: stretch; gap: .9rem; padding: 1.2rem 1rem; }
  .icono-activacion { width: 46px; height: 46px; font-size: 1.8rem; }
  .contenido-activacion h3 { font-size: 1.25rem; }
  .contenido-activacion p { font-size: .9rem; }
  .form-activacion-rapida, .form-canje-moderno { flex-direction: column; max-width: none; gap: .6rem; }
  .form-activacion-rapida input, .form-canje-moderno input {
    width: 100%; font-size: 16px; /* 16px evita que el iPhone haga zoom al tocar el campo */
    letter-spacing: .06em; padding: .85rem .9rem; text-align: center;
  }
  .form-activacion-rapida button, .form-canje-moderno button { width: 100%; padding: .85rem 1rem; }
}