/* ============================================================
   style.css — Curso de Agentes de IA
   Tema "Horizonte": claro, cálido y profesional (indigo + ámbar)
   Diseñado para público general. Conserva los nombres de clases
   originales para compatibilidad con las vistas PHP/JS.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400;1,600&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ------------------------------------------------------------
   1. TOKENS — Modo claro (por defecto)
   ------------------------------------------------------------ */
:root {
  color-scheme: light;

  --cyan:       #4338ca;                     /* acento principal */
  --cyan-dim:   rgba(67, 56, 202, 0.12);
  --cyan-glow:  rgba(67, 56, 202, 0.22);
  --amber:      #e08a00;                     /* acento secundario */
  --amber-dim:  rgba(224, 138, 0, 0.14);

  --black:      #f4f6fb;                     /* fondo de página */
  --dark:       #ffffff;                     /* superficie (tarjetas) */
  --surface-2:  #f7f9fd;
  --gray:       #5e6678;                     /* texto atenuado */
  --text-main:  #171a2b;                     /* texto principal */
  --line:       rgba(23, 26, 43, 0.10);
  --line-strong:rgba(23, 26, 43, 0.18);

  /* Superficies de código / terminal (oscuras en ambos temas) */
  --code-bg:    #14161f;
  --code-fg:    #e7e9f5;

  --radius:     16px;
  --radius-sm:  10px;
  --shadow-soft: 0 12px 34px rgba(23, 26, 43, 0.09);
  --shadow-hover:0 20px 44px rgba(67, 56, 202, 0.16);
  --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ------------------------------------------------------------
   2. TOKENS — Modo oscuro (elegante, índigo profundo)
   ------------------------------------------------------------ */
:root[data-theme="dark"] {
  color-scheme: dark;

  --cyan:       #8b95ff;
  --cyan-dim:   rgba(139, 149, 255, 0.16);
  --cyan-glow:  rgba(139, 149, 255, 0.28);
  --amber:      #f2b544;
  --amber-dim:  rgba(242, 181, 68, 0.16);

  --black:      #0e1019;
  --dark:       #171a2b;
  --surface-2:  #1d2135;
  --gray:       #9aa3b8;
  --text-main:  #eef1fb;
  --line:       rgba(238, 241, 251, 0.10);
  --line-strong:rgba(238, 241, 251, 0.18);

  --code-bg:    #0b0c14;
  --code-fg:    #e7e9f5;

  --shadow-soft: 0 12px 34px rgba(0, 0, 0, 0.45);
  --shadow-hover:0 20px 44px rgba(139, 149, 255, 0.22);
}

/* ------------------------------------------------------------
   3. BASE
   ------------------------------------------------------------ */
body {
  min-height: 100vh;
  margin: 0;
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  background-color: var(--black);
  color: var(--text-main);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Fondo: malla suave en vez de rejilla "hacker" */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(60rem 40rem at 82% -8%, var(--cyan-dim), transparent 60%),
    radial-gradient(52rem 38rem at 8% 12%, var(--amber-dim), transparent 62%),
    radial-gradient(48rem 40rem at 50% 118%, var(--cyan-dim), transparent 60%);
  pointer-events: none;
  z-index: -1;
}

/* Tipografía */
h1, h2, h3, .brand-title, .card-title {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  letter-spacing: -0.02em;
  font-weight: 700;
}
h4, h5, h6 { font-weight: 600; letter-spacing: -0.01em; }

.mono { font-family: 'JetBrains Mono', monospace; }

/* Accesibilidad: foco visible */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 4px;
}

a { color: var(--cyan); }

/* ------------------------------------------------------------
   4. HERO — con orbes de gradiente (firma del tema)
   ------------------------------------------------------------ */
.hero-cyber {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.hero-cyber::before,
.hero-cyber::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
  z-index: -1;
}
.hero-cyber::before {
  width: 26rem; height: 26rem;
  top: -6rem; right: -4rem;
  background: radial-gradient(circle at center, var(--cyan-glow), transparent 70%);
  animation: floatA 16s ease-in-out infinite;
}
.hero-cyber::after {
  width: 22rem; height: 22rem;
  bottom: -6rem; left: -4rem;
  background: radial-gradient(circle at center, var(--amber-dim), transparent 70%);
  animation: floatB 20s ease-in-out infinite;
}

@keyframes floatA {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50%      { transform: translate3d(-2rem, 1.5rem, 0) scale(1.08); }
}
@keyframes floatB {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50%      { transform: translate3d(2rem, -1.5rem, 0) scale(1.12); }
}

/* La antigua "scanline" ya no aplica a este tema */
.scanline { display: none; }

/* ------------------------------------------------------------
   5. TARJETAS
   ------------------------------------------------------------ */
.cyber-card {
  background: var(--dark);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  position: relative;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.cyber-card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan-dim);
  box-shadow: var(--shadow-hover);
}

.cyber-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--amber));
  transform: scaleX(0);
  transition: var(--transition-smooth);
  transform-origin: left;
}
.cyber-card:hover::before { transform: scaleX(1); }

/* ------------------------------------------------------------
   6. BOTONES
   ------------------------------------------------------------ */
.btn-cyber {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background: transparent;
  color: var(--cyan);
  border: 1.5px solid var(--cyan);
  border-radius: 999px;
  padding: 0.85rem 2.4rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.8rem;
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

.btn-cyber:hover {
  background: var(--cyan);
  color: #fff;
  box-shadow: 0 10px 24px var(--cyan-glow);
}
:root[data-theme="dark"] .btn-cyber:hover { color: #0e1019; }

.btn-cyber.btn-sm {
  padding: 0.5rem 1.2rem;
  font-size: 0.72rem;
}

/* Botón fantasma (acción secundaria) */
.btn-ghost {
  color: var(--gray) !important;
  border-color: var(--line-strong) !important;
}
.btn-ghost:hover {
  background: var(--gray) !important;
  color: var(--dark) !important;
  box-shadow: none !important;
}

/* ------------------------------------------------------------
   7. TEXTO / UTILIDADES (antes sin definir)
   ------------------------------------------------------------ */
.gradient-text {
  background: linear-gradient(100deg, var(--cyan), var(--amber));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--cyan);
}

.text-cyan { color: var(--cyan) !important; }
.text-gray { color: var(--gray) !important; }
.x-small   { font-size: 0.72rem; }
.bg-cyan   { background-color: var(--cyan) !important; }

.pre-custom {
  font-family: 'JetBrains Mono', monospace;
  border-radius: var(--radius-sm);
  white-space: pre-wrap;
  word-break: break-word;
}

/* ------------------------------------------------------------
   8. NAVBAR
   ------------------------------------------------------------ */
.glass-nav {
  background: rgba(244, 246, 251, 0.82) !important;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  padding: 0.5rem 0;
  transition: all 0.3s ease;
}
:root[data-theme="dark"] .glass-nav {
  background: rgba(14, 16, 25, 0.82) !important;
}

.navbar-brand {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.nav-icon-link, .nav-icon-link:visited, .nav-icon-link:hover, .nav-icon-link:active {
  color: var(--gray) !important;
  font-size: 1.05rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  text-decoration: none !important;
  outline: none !important;
  box-shadow: none !important;
}

.nav-icon-link:hover, .nav-icon-link.active {
  color: var(--cyan) !important;
  background: var(--cyan-dim);
}
:root[data-theme="dark"] .nav-icon-link:hover,
:root[data-theme="dark"] .nav-icon-link.active {
  box-shadow: 0 0 15px var(--cyan-glow) !important;
}

.nav-icon-link .tooltip-text {
  visibility: hidden;
  width: 130px;
  background-color: var(--text-main) !important;
  color: var(--dark) !important;
  text-align: center;
  border-radius: 8px;
  padding: 5px 0;
  position: absolute;
  z-index: 100;
  bottom: 125%;
  left: 50%;
  margin-left: -65px;
  opacity: 0;
  transition: opacity 0.3s;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  text-transform: uppercase;
  pointer-events: none;
  text-decoration: none !important;
}
.nav-icon-link:hover .tooltip-text { visibility: visible; opacity: 1; }

.nav-user-pill {
  background: var(--surface-2);
  border: 1px solid var(--line);
  padding: 0.35rem 0.85rem;
  border-radius: 50px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.72rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
}
.nav-user-pill:hover { border-color: var(--cyan); }

/* ------------------------------------------------------------
   9. ESTADÍSTICAS
   ------------------------------------------------------------ */
.stat-box {
  background: var(--dark);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-main);
}
.stat-number {
  color: var(--cyan);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: 2.4rem;
  line-height: 1;
}

/* ------------------------------------------------------------
   10. MODAL DE RESOLUCIÓN (consola / editor)
   ------------------------------------------------------------ */
.cyber-modal .modal-content {
  background: var(--dark);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  color: var(--text-main);
}

.terminal-chrome {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
  border-radius: var(--radius) var(--radius) 0 0;
}
.terminal-chrome .dot { width: 11px; height: 11px; border-radius: 50%; opacity: 0.85; }
.dot-red    { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green  { background: #27c93f; }
.terminal-title {
  color: var(--gray);
  font-size: 0.7rem;
  margin-left: 0.5rem;
  letter-spacing: 0.5px;
}
.terminal-badge {
  margin-left: auto;
  color: var(--cyan);
  border: 1px solid var(--cyan-dim);
  border-radius: 6px;
  padding: 0.05rem 0.5rem;
  font-size: 0.65rem;
}

.cyber-modal .modal-body { padding: 1.5rem; }
.modal-ej-titulo { font-size: 0.95rem; color: var(--cyan); letter-spacing: 0.3px; font-weight: 700; }
.modal-ej-enunciado { font-size: 0.78rem; color: var(--gray); line-height: 1.55; margin: 0.4rem 0 0; }

/* Editor tipo terminal (oscuras en ambos temas) */
.editor-wrap {
  display: flex;
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: var(--transition-smooth);
}
.editor-wrap:focus-within {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-dim);
}
.editor-gutter {
  width: 2.6rem;
  flex: none;
  padding: 0.9rem 0.6rem;
  text-align: right;
  color: #7c8398;
  font-size: 0.8rem;
  line-height: 1.6;
  overflow: hidden;
  border-right: 1px solid rgba(255,255,255,0.08);
  user-select: none;
}
.editor-input {
  flex: 1;
  min-height: 240px;
  background: transparent;
  border: 0;
  outline: 0;
  resize: vertical;
  color: var(--code-fg);
  font-size: 0.8rem;
  line-height: 1.6;
  padding: 0.9rem 1rem;
  white-space: pre;
  overflow: auto;
  tab-size: 2;
  font-family: 'JetBrains Mono', monospace;
}
.editor-input::placeholder { color: rgba(231, 233, 245, 0.35); }
.editor-foot {
  display: flex;
  justify-content: space-between;
  margin-top: 0.6rem;
  font-size: 0.65rem;
  color: var(--gray);
  letter-spacing: 0.4px;
}
.cyber-modal .modal-footer {
  border-top: 1px solid var(--line);
  padding: 0.9rem 1.5rem;
  gap: 0.6rem;
}

/* ------------------------------------------------------------
   11. SWEETALERT2
   ------------------------------------------------------------ */
.swal2-popup.swal-cyber {
  background: var(--dark);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-main);
  font-family: 'Plus Jakarta Sans', sans-serif;
}
.swal-cyber .swal2-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 1.05rem;
  font-weight: 700;
}
.swal-cyber .swal2-html-container { color: var(--gray); }
.swal-cyber .swal2-loader { border-color: var(--cyan) transparent var(--cyan) transparent; }
.swal-cyber .swal2-confirm,
.swal-cyber .swal2-cancel {
  border-radius: 999px !important;
  font-family: 'Plus Jakarta Sans', sans-serif;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  box-shadow: none !important;
}
.swal-cyber .swal2-confirm {
  background: var(--cyan) !important;
  border: 1px solid var(--cyan) !important;
  color: #fff !important;
}
:root[data-theme="dark"] .swal-cyber .swal2-confirm { color: #0e1019 !important; }
.swal-cyber .swal2-confirm:hover { opacity: 0.9; }
.swal-cyber .swal2-cancel {
  background: transparent !important;
  border: 1px solid var(--line-strong) !important;
  color: var(--gray) !important;
}
.swal-cyber .swal2-cancel:hover { background: var(--gray) !important; color: var(--dark) !important; }
.swal-cyber .swal2-styled:focus { box-shadow: 0 0 0 3px var(--cyan-dim) !important; }
.swal-cyber .swal2-icon { border-color: var(--cyan) !important; color: var(--cyan) !important; }
.swal-cyber .swal2-icon .swal2-icon-content { color: var(--cyan) !important; }
.swal-cyber .swal2-success-ring { border-color: var(--cyan-dim) !important; }
.swal-cyber .swal2-success [class^='swal2-success-line'] { background-color: var(--cyan) !important; }

/* Bloque de código (pistas / soluciones) */
.cyber-code {
  background: var(--code-bg);
  color: var(--code-fg);
  border: 1px solid rgba(255,255,255,0.08);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius-sm);
  padding: 1rem;
  margin: 0;
  text-align: left;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  line-height: 1.6;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
}
.cyber-note {
  text-align: left;
  color: var(--gray);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.82rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}

/* Toast */
.swal2-popup.swal-cyber-toast {
  background: var(--text-main);
  border: none;
  border-radius: 12px;
  color: var(--black);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.78rem;
}
.swal2-popup.swal-cyber-toast .swal2-timer-progress-bar { background: var(--cyan); }

/* ------------------------------------------------------------
   12. NOTA DEL OPERADOR
   ------------------------------------------------------------ */
.operador-nota {
  background: var(--amber-dim);
  border-left: 3px solid var(--amber);
  color: var(--amber);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.78rem;
  line-height: 1.5;
  padding: 0.6rem 0.8rem;
}
:root[data-theme="dark"] .operador-nota { color: #ffd97a; }

/* ------------------------------------------------------------
   13. NAVEGACIÓN ENTRE CLASES
   ------------------------------------------------------------ */
.btn-nav-clase {
  min-width: 130px;
  text-align: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn-nav-clase.disabled {
  border-color: var(--line) !important;
  color: var(--gray) !important;
  opacity: 0.6;
  cursor: not-allowed;
  font-family: 'Plus Jakarta Sans', sans-serif;
  padding: 0.5rem 1.2rem;
  font-size: 0.72rem;
  text-transform: uppercase;
}

/* ------------------------------------------------------------
   14. REMAP DE UTILIDADES BOOTSTRAP EN MODO CLARO
   (aplica salvo en oscuro; el atributo lo fija el header)
   ------------------------------------------------------------ */
:root:not([data-theme="dark"]) .navbar-brand,
:root:not([data-theme="dark"]) .text-white,
:root:not([data-theme="dark"]) h1,
:root:not([data-theme="dark"]) h2,
:root:not([data-theme="dark"]) h3 {
  color: var(--text-main) !important;
}
:root:not([data-theme="dark"]) .bg-dark {
  background-color: var(--surface-2) !important;
  color: var(--text-main);
}
:root:not([data-theme="dark"]) .border-secondary { border-color: var(--line) !important; }
:root:not([data-theme="dark"]) .text-secondary { color: var(--gray) !important; }

:root:not([data-theme="dark"]) .form-control,
:root:not([data-theme="dark"]) .form-select,
:root:not([data-theme="dark"]) .input-group-text {
  background-color: var(--dark) !important;
  color: var(--text-main) !important;
  border-color: var(--line-strong) !important;
}
:root:not([data-theme="dark"]) .form-control::placeholder { color: #97a3b8 !important; }

:root:not([data-theme="dark"]) .table-dark {
  --bs-table-bg: var(--dark);
  --bs-table-color: var(--text-main);
  --bs-table-striped-bg: var(--surface-2);
  --bs-table-striped-color: var(--text-main);
  --bs-table-hover-bg: var(--cyan-dim);
  --bs-table-hover-color: var(--text-main);
  --bs-table-border-color: var(--line);
  color: var(--text-main);
}
:root:not([data-theme="dark"]) .table-dark th,
:root:not([data-theme="dark"]) .table-dark td { border-color: var(--line); }

:root:not([data-theme="dark"]) .progress { background-color: var(--surface-2) !important; }

/* Modo oscuro: ajustes menores de superficies Bootstrap */
:root[data-theme="dark"] .bg-dark { background-color: var(--surface-2) !important; color: var(--text-main); }
:root[data-theme="dark"] .border-secondary { border-color: var(--line) !important; }

/* ------------------------------------------------------------
   15. AVISO DE PAGO (banner con QR y datos bancarios)
   ------------------------------------------------------------ */
.pago-banner {
  border: 1px solid var(--amber) !important;
  box-shadow: 0 16px 40px var(--amber-dim) !important;
}
.pago-banner::before {
  background: linear-gradient(90deg, var(--amber), var(--cyan)) !important;
}
.pago-qr-box {
  width: 200px;
  height: 200px;
  background: #fff;
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-soft);
}
.pago-qr-box img, .pago-qr-box canvas { border-radius: 6px; }

.pago-datos {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface-2);
}
.pago-fila {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 0.9rem;
  border-bottom: 1px solid var(--line);
}
.pago-fila:last-child { border-bottom: 0; }
.pago-k {
  flex: 0 0 92px;
  color: var(--gray);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.pago-v {
  flex: 1;
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  word-break: break-all;
}
.pago-monto .pago-v { color: var(--amber); font-size: 1rem; }

.pago-copy {
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--gray);
  cursor: pointer;
  padding: 0.05rem 0.4rem;
  font-size: 0.7rem;
  transition: var(--transition-smooth);
}
.pago-copy:hover { color: var(--cyan); border-color: var(--cyan); }

.pago-paso {
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.9rem;
  font-size: 0.78rem;
  color: var(--gray);
  height: 100%;
}
.pago-num {
  display: inline-block;
  font-weight: 800;
  color: var(--cyan);
  margin-right: 0.4rem;
}

/* ------------------------------------------------------------
   16. CLASE — jerarquía de lectura (sin tocar BD ni contenido)
   ------------------------------------------------------------ */
.clase-hero {
  border-top: 3px solid transparent;
  border-image: linear-gradient(90deg, var(--cyan), var(--amber)) 1;
}
.clase-modulo-pill {
  font-size: 0.68rem;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--cyan);
  background: var(--cyan-dim);
  border: 1px solid var(--cyan-dim);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
}
.clase-video-btn { padding: 0.35rem 1rem !important; font-size: 0.7rem !important; }
.clase-titulo {
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  line-height: 1.2;
  background: linear-gradient(100deg, var(--cyan), var(--amber));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--cyan);
}
.clase-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.1rem;
  font-size: 0.7rem;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--gray);
}
.clase-toc-titulo { font-size: 0.72rem; letter-spacing: 2px; color: var(--cyan); margin: 0 0 0.7rem; }
.clase-toc-lista { margin: 0; padding-left: 1.2rem; columns: 2; column-gap: 2rem; }
.clase-toc-lista li { margin-bottom: 0.35rem; font-size: 0.82rem; }
.clase-toc-lista a { color: var(--text-main); text-decoration: none; border-bottom: 1px dotted var(--line-strong); }
.clase-toc-lista a:hover { color: var(--cyan); border-bottom-color: var(--cyan); }
@media (max-width: 768px) { .clase-toc-lista { columns: 1; } }

.clase-contenido-card { scroll-behavior: smooth; }
.contenido-leccion {
  color: var(--text-main);
  font-size: 0.96rem;
  line-height: 1.85;
}
.contenido-leccion h2 {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  font-size: 1.12rem;
  margin: 2.2rem 0 0.9rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  color: var(--text-main);
  scroll-margin-top: 90px;
}
.contenido-leccion h2:first-child { margin-top: 0; border-top: 0; padding-top: 0; }
.contenido-leccion h2 .sec-num {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.7rem; height: 1.7rem;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--cyan), var(--amber));
  transform: translateY(-2px);
}
:root[data-theme="dark"] .contenido-leccion h2 .sec-num { color: #0e1019; }
.contenido-leccion p { margin: 0 0 1rem; color: var(--text-main); }
.contenido-leccion p.lead,
.contenido-leccion > p:first-of-type {
  font-size: 1.04rem;
  line-height: 1.7;
  background: var(--cyan-dim);
  border-left: 3px solid var(--cyan);
  border-radius: 0 12px 12px 0;
  padding: 0.9rem 1.1rem;
}
.contenido-leccion strong { color: var(--cyan); font-weight: 700; }
.contenido-leccion em { color: var(--amber); }
.contenido-leccion a { color: var(--cyan); font-weight: 600; }
.contenido-leccion ul, .contenido-leccion ol { margin: 0 0 1.1rem; padding-left: 0; list-style: none; }
.contenido-leccion ul li, .contenido-leccion ol li {
  position: relative;
  margin-bottom: 0.6rem;
  padding: 0.65rem 0.9rem 0.65rem 2.4rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.contenido-leccion ol { counter-reset: paso; }
.contenido-leccion ol li { counter-increment: paso; }
.contenido-leccion ul li::before {
  content: "▸";
  position: absolute; left: 0.9rem; top: 0.65rem;
  color: var(--amber); font-weight: 800;
}
.contenido-leccion ol li::before {
  content: counter(paso);
  position: absolute; left: 0.7rem; top: 0.6rem;
  width: 1.35rem; height: 1.35rem;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--cyan-dim); color: var(--cyan);
  font-size: 0.72rem; font-weight: 800;
}
.contenido-leccion ul li strong, .contenido-leccion ol li strong { color: var(--cyan); }
.contenido-leccion code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82em;
  background: var(--cyan-dim);
  color: var(--cyan);
  border-radius: 6px;
  padding: 0.1rem 0.4rem;
  word-break: break-word;
}
.contenido-leccion pre {
  background: var(--code-bg);
  border: 1px solid rgba(255,255,255,0.08);
  border-left: 3px solid var(--amber);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  margin: 0 0 1.2rem;
}
.contenido-leccion pre code {
  background: transparent;
  color: var(--code-fg);
  padding: 0;
  font-size: 0.8rem;
  line-height: 1.65;
}
.contenido-leccion table.tabla-cyber {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 0 0 1.3rem;
  font-size: 0.82rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.contenido-leccion table.tabla-cyber th {
  background: var(--cyan-dim);
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  font-size: 0.7rem;
  padding: 0.65rem 0.8rem;
  text-align: left;
}
.contenido-leccion table.tabla-cyber td {
  padding: 0.6rem 0.8rem;
  border-top: 1px solid var(--line);
  color: var(--text-main);
  vertical-align: top;
}
.contenido-leccion table.tabla-cyber tr td:first-child { font-weight: 700; color: var(--cyan); }
.contenido-leccion hr { border: 0; border-top: 1px dashed var(--line-strong); margin: 1.6rem 0; }

/* ------------------------------------------------------------
   17. MOVIMIENTO REDUCIDO
   ------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}