/* ==========================================================================
   ITB — Ecualiza con criterio — estilos compartidos
   Sistema de diseño común a los 14 módulos: reset, variables de marca,
   topbar, barra de progreso, hero, secciones, fricción, concepto, quiz,
   criterio y navegación "siguiente/anterior".
   Cada módulo conserva un <style> propio solo para sus widgets únicos.
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --morado: #5700F6;
  --morado-light: rgba(87,0,246,0.1);
  --amarillo: #F5C842;
  --noche: #080D1A;
  --oscuro: #1E2640;
  --gris: #8892AA;
  --gris-claro: #E4E7EF;
  --fondo: #F4F5F8;
  --blanco: #FFFFFF;
  --verde: #22C97A;
  --sans: 'DM Sans', sans-serif;
  --mono: 'Space Mono', monospace;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--fondo);
  color: var(--oscuro);
  line-height: 1.6;
  font-size: 16px;
}

/* ── BARRA DE PROGRESO ── */
.progress-bar-wrap {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: 3px;
  background: rgba(0,0,0,0.15);
}
.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--verde);
  transition: width 0.4s ease;
  position: relative;
}
.progress-bar-fill::after {
  content: '';
  position: absolute;
  right: 0; top: 0;
  width: 4px; height: 100%;
  background: rgba(255,255,255,0.6);
  border-radius: 0 2px 2px 0;
}
.progress-tooltip {
  position: absolute;
  right: 0;
  top: 6px;
  background: var(--noche);
  color: var(--verde);
  font-family: var(--mono);
  font-size: 9px;
  padding: 3px 6px;
  border-radius: 3px;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}
.progress-bar-wrap:hover .progress-tooltip { opacity: 1; }

/* ── BARRA SUPERIOR ── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--noche);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  height: 52px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.topbar-brand { font-family: var(--mono); font-size: 13px; color: var(--blanco); text-decoration: none; }
.topbar-brand span { color: var(--amarillo); }
.topbar-nav { display: flex; align-items: center; gap: 4px; }
.nav-pill {
  font-size: 11px; font-weight: 500;
  padding: 4px 11px; border-radius: 20px;
  color: var(--gris); cursor: pointer;
  transition: all 0.18s;
  border: none; background: transparent;
  font-family: var(--sans);
}
.nav-pill:hover { color: var(--blanco); background: rgba(255,255,255,0.07); }
.nav-pill.active { color: var(--blanco); background: var(--morado); }
.topbar-mod { font-family: var(--mono); font-size: 11px; color: var(--gris); }

/* ── HERO ── */
.hero {
  background: var(--noche);
  padding: 80px 0 72px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -80px; right: -60px;
  width: 480px; height: 480px;
  background: radial-gradient(circle, rgba(87,0,246,0.2) 0%, transparent 68%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(87,0,246,0.4), rgba(245,200,66,0.3), transparent);
}
.hero-inner { max-width: 760px; margin: 0 auto; padding: 0 40px; }
.hero-eyebrow {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 32px;
}
.eyebrow-tag {
  font-family: var(--mono); font-size: 11px;
  color: var(--amarillo); letter-spacing: 0.08em;
  text-transform: uppercase; white-space: nowrap;
}
.eyebrow-line { flex: 1; height: 1px; background: rgba(245,200,66,0.2); }
.hero h1 {
  font-size: clamp(36px, 5vw, 54px);
  font-weight: 700; color: var(--blanco);
  line-height: 1.08; letter-spacing: -0.025em;
  margin-bottom: 22px;
}
.hero h1 em { font-style: normal; color: var(--amarillo); }
.hero-sub {
  font-size: 18px; color: rgba(136,146,170,0.9);
  line-height: 1.6; max-width: 560px;
}
.hero-objetivo {
  margin-top: 28px; display: inline-flex; align-items: flex-start; gap: 12px;
  background: rgba(87,0,246,0.15); border: 1px solid rgba(87,0,246,0.3);
  border-radius: 10px; padding: 14px 18px; max-width: 540px;
}
.objetivo-label {
  font-family: var(--mono); font-size: 10px; color: rgba(255,255,255,0.4);
  text-transform: uppercase; letter-spacing: 0.08em; white-space: nowrap; margin-top: 1px;
}
.objetivo-texto { font-size: 14px; color: rgba(255,255,255,0.8); line-height: 1.5; }

/* ── LAYOUT PRINCIPAL ── */
.content { max-width: 760px; margin: 0 auto; padding: 0 40px 100px; }

/* ── SEPARADOR DE SECCIÓN ── */
.section-break {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 64px 0 0;
  position: relative;
}
.section-break-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--fondo);
  padding-right: 16px;
  position: relative;
  z-index: 1;
}
.section-break::before {
  content: '';
  position: absolute;
  left: 0; right: 0; top: 50%;
  height: 1px;
  background: var(--gris-claro);
}
.section-num {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--morado);
  font-weight: 700;
  background: var(--morado-light);
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.06em;
}
.section-title-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--oscuro);
}

/* ── BODY TEXT ── */
.body-text { margin-top: 24px; }
.body-text p {
  font-size: 17px; line-height: 1.72;
  color: var(--oscuro); margin-bottom: 20px;
}
.body-text p:last-child { margin-bottom: 0; }
.body-text .accent { color: var(--morado); font-weight: 600; }

/* ── FRICCIÓN ── */
.friction-block {
  background: var(--oscuro);
  border-radius: 14px;
  padding: 32px 36px 28px;
  margin-top: 32px;
  position: relative;
  overflow: hidden;
}
.friction-block::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--amarillo), transparent);
}
.friction-label {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--amarillo); margin-bottom: 16px;
}
.friction-question {
  font-size: 20px; font-weight: 700;
  color: var(--blanco); line-height: 1.35; margin-bottom: 22px;
}
.friction-options { display: flex; flex-direction: column; gap: 8px; }
.friction-option {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: 9px; padding: 13px 16px;
  font-size: 15px; color: rgba(255,255,255,0.7);
  cursor: pointer; transition: all 0.16s;
  text-align: left; font-family: var(--sans); line-height: 1.45;
}
.friction-option:hover {
  background: rgba(87,0,246,0.18);
  border-color: rgba(87,0,246,0.5);
  color: var(--blanco);
}
.friction-option.correct {
  background: rgba(87,0,246,0.22);
  border-color: var(--morado);
  color: var(--blanco);
}
.friction-option.wrong {
  background: rgba(255,80,80,0.06);
  border-color: rgba(255,80,80,0.2);
  color: rgba(255,255,255,0.55);
}
.friction-reveal {
  display: none; margin-top: 18px;
  padding: 16px 18px;
  background: rgba(245,200,66,0.07);
  border-radius: 8px;
  border: 1px solid rgba(245,200,66,0.18);
  font-size: 15px; color: rgba(255,255,255,0.85); line-height: 1.6;
}
.friction-reveal.show { display: block; }
.friction-reveal strong { color: var(--amarillo); }

/* ── CONCEPTO CLAVE — card impactante ── */
.concepto-card {
  margin-top: 36px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 2px 24px rgba(87,0,246,0.12);
}
.concepto-top {
  background: var(--morado);
  padding: 28px 36px 24px;
  position: relative;
  overflow: hidden;
}
.concepto-top::before {
  content: '"';
  position: absolute;
  right: 24px; top: -10px;
  font-size: 120px; font-weight: 700;
  color: rgba(255,255,255,0.06);
  line-height: 1;
  pointer-events: none;
}
.concepto-eyebrow {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(255,255,255,0.45); margin-bottom: 14px;
}
.concepto-frase {
  font-size: 22px; font-weight: 700;
  color: var(--blanco); line-height: 1.35;
}
.concepto-frase em { font-style: normal; color: var(--amarillo); }
.concepto-bottom {
  background: var(--blanco);
  padding: 22px 36px;
  border: 1px solid var(--gris-claro);
  border-top: none;
  border-radius: 0 0 16px 16px;
}
.concepto-explicacion {
  font-size: 15px; color: var(--gris); line-height: 1.65;
}

/* ── MAPA DE MÓDULOS (usado en 00 e index.html) ── */
.modulos-grid {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.modulo-row {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  gap: 0;
  background: var(--blanco);
  border: 1px solid var(--gris-claro);
  border-radius: 10px;
  padding: 14px 18px;
  transition: border-color 0.16s, box-shadow 0.16s;
  cursor: default;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}
.modulo-row.activo {
  border-color: var(--morado);
  background: var(--blanco);
}
.modulo-row.activo::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--morado);
  border-radius: 10px 0 0 10px;
}
.modulo-row.bloqueado { opacity: 0.5; }
.modulo-row.completado { border-color: rgba(34,201,122,0.4); }
.modulo-row.completado::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--verde);
  border-radius: 10px 0 0 10px;
}
.modulo-row.enlazable { cursor: pointer; }
.modulo-row.enlazable:hover { border-color: var(--morado); box-shadow: 0 2px 16px rgba(87,0,246,0.1); }
.mod-right { display: flex; align-items: center; gap: 12px; }
.mod-ir-btn {
  font-family: var(--sans); font-size: 12px; font-weight: 700;
  color: var(--blanco); background: var(--morado);
  border: none; border-radius: 8px; padding: 9px 14px;
  cursor: pointer; text-decoration: none; white-space: nowrap;
  transition: all 0.15s; flex-shrink: 0;
}
.mod-ir-btn:hover { background: #4500cc; transform: translateY(-1px); }
.mod-num-label {
  font-family: var(--mono); font-size: 11px;
  color: var(--gris); font-weight: 700;
}
.mod-num-label.activo-num { color: var(--morado); }
.mod-info {}
.mod-titulo {
  font-size: 14px; font-weight: 700;
  color: var(--oscuro); margin-bottom: 2px;
}
.mod-subtitulo { font-size: 12px; color: var(--gris); }
.mod-estado {
  font-family: var(--mono); font-size: 10px;
  padding: 3px 9px; border-radius: 20px;
  white-space: nowrap;
}
.mod-estado.en-curso {
  background: var(--morado-light);
  color: var(--morado);
}
.mod-estado.pendiente {
  background: rgba(136,146,170,0.1);
  color: var(--gris);
}
.mod-estado.completado {
  background: rgba(34,201,122,0.12);
  color: var(--verde);
}
@media (max-width: 560px) {
  .modulo-row { grid-template-columns: 1fr; gap: 10px; }
  .mod-right { justify-content: space-between; }
}

/* ── CONTENEDOR DE EJERCICIO / QUIZ (usado en módulos 01–13) ── */
.ejercicio-wrap {
  margin-top: 32px;
  background: var(--blanco);
  border: 1px solid var(--gris-claro);
  border-radius: 14px;
  overflow: hidden;
}
.ejercicio-header-bar {
  background: var(--oscuro);
  padding: 20px 28px;
  display: flex; align-items: center; gap: 14px;
}
.ej-icon {
  width: 36px; height: 36px;
  background: rgba(245,200,66,0.15);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
}
.ej-header-label {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--gris); margin-bottom: 3px;
}
.ej-header-titulo { font-size: 15px; font-weight: 700; color: var(--blanco); }
.ejercicio-body { padding: 28px; }
.ej-intro { font-size: 15px; color: var(--gris); line-height: 1.6; margin-bottom: 24px; }

/* ── QUIZ (motor de 10 preguntas) ── */
.quiz-escenario {
  font-family: var(--mono); font-size: 10px; color: var(--morado);
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 10px; font-weight: 700;
}
.quiz-texto {
  font-size: 17px; font-weight: 600; color: var(--oscuro); line-height: 1.5;
  margin-bottom: 22px; padding: 20px 22px; background: var(--fondo);
  border-radius: 10px; border-left: 3px solid var(--morado); font-style: italic;
}
.quiz-opciones { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
@media (max-width: 560px) { .quiz-opciones { grid-template-columns: 1fr; } }
.quiz-opcion {
  padding: 12px 16px; border-radius: 9px; background: var(--blanco);
  border: 1.5px solid var(--gris-claro); font-size: 14px; font-family: var(--mono);
  color: var(--oscuro); cursor: pointer; transition: all 0.16s; text-align: left; line-height: 1.4;
}
.quiz-opcion:hover:not(:disabled) { border-color: var(--morado); color: var(--morado); background: var(--morado-light); }
.quiz-opcion.correcto { background: rgba(87,0,246,0.08); border-color: var(--morado); color: var(--morado); font-weight: 700; }
.quiz-opcion.incorrecto { background: rgba(200,50,50,0.06); border-color: rgba(200,50,50,0.3); color: rgba(200,50,50,0.8); }
.quiz-feedback { margin-top: 14px; font-size: 14px; line-height: 1.6; padding: 14px 16px; border-radius: 8px; display: none; }
.quiz-feedback.show { display: block; }
.quiz-feedback.ok { background: rgba(87,0,246,0.07); color: var(--oscuro); border: 1px solid rgba(87,0,246,0.15); }
.quiz-feedback.ko { background: rgba(200,50,50,0.06); color: var(--oscuro); border: 1px solid rgba(200,50,50,0.15); }
.quiz-feedback strong { color: var(--morado); }
.quiz-feedback.ko strong { color: #c03030; }
.quiz-siguiente {
  margin-top: 16px; background: var(--morado); color: var(--blanco); border: none;
  border-radius: 8px; padding: 11px 22px; font-size: 14px; font-weight: 700;
  font-family: var(--sans); cursor: pointer; transition: all 0.18s;
}
.quiz-siguiente:hover { background: #4500cc; transform: translateY(-1px); }
.quiz-score {
  margin-top: 20px; padding: 28px 24px; border-radius: 12px;
  background: var(--morado-light); border: 1px solid rgba(87,0,246,0.2); display: none;
}
.quiz-score.show { display: block; }
.quiz-score-num { font-size: 36px; font-weight: 700; color: var(--morado); font-family: var(--mono); }
.quiz-score-txt { font-size: 15px; color: var(--oscuro); margin-top: 6px; font-weight: 600; }
.quiz-reiniciar {
  margin-top: 16px; background: transparent; border: 1.5px solid var(--morado); color: var(--morado);
  border-radius: 8px; padding: 9px 18px; font-size: 13px; font-family: var(--sans);
  font-weight: 600; cursor: pointer; transition: all 0.16s;
}
.quiz-reiniciar:hover { background: var(--morado); color: var(--blanco); }

/* ── EJERCICIO DE TEXTO LIBRE (usado en módulo 00) ── */
.ejercicio-block {
  margin-top: 32px;
  background: var(--blanco);
  border: 1px solid var(--gris-claro);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.3s;
}
.ejercicio-block.completado { border-color: var(--verde); }
.ejercicio-header {
  background: var(--oscuro);
  padding: 20px 28px;
  display: flex; align-items: center; gap: 14px;
}
.ejercicio-header.completado-header { background: #0e2a1a; }
.ejercicio-icon {
  width: 36px; height: 36px;
  background: var(--morado-light);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
}
.ejercicio-icon.verde { background: rgba(34,201,122,0.15); }
.ejercicio-header-text {}
.ejercicio-header-label {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--gris); margin-bottom: 3px;
}
.ejercicio-header-titulo {
  font-size: 15px; font-weight: 700; color: var(--blanco);
}
.ejercicio-intro {
  font-size: 15px; color: var(--gris);
  line-height: 1.6; margin-bottom: 24px;
}
.ejercicio-pregunta { margin-bottom: 20px; }
.pregunta-header {
  display: flex; align-items: flex-start; gap: 12px;
  margin-bottom: 10px;
}
.paso-num {
  font-family: var(--mono); font-size: 11px;
  color: var(--amarillo);
  background: var(--oscuro);
  width: 26px; height: 26px;
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-weight: 700;
  margin-top: 1px;
}
.paso-num.verde { background: #0e2a1a; color: var(--verde); }
.pregunta-textos {}
.paso-texto { font-size: 15px; font-weight: 600; color: var(--oscuro); line-height: 1.4; margin-bottom: 3px; }
.paso-nota { font-size: 12px; color: var(--gris); line-height: 1.5; }
.pregunta-textarea {
  width: 100%;
  min-height: 88px;
  background: var(--fondo);
  border: 1px solid var(--gris-claro);
  border-radius: 8px;
  padding: 12px 14px;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--oscuro);
  line-height: 1.6;
  resize: vertical;
  transition: border-color 0.18s, box-shadow 0.18s;
  outline: none;
}
.pregunta-textarea:focus {
  border-color: var(--morado);
  box-shadow: 0 0 0 3px rgba(87,0,246,0.08);
}
.pregunta-textarea:disabled {
  background: #f8f9fb;
  color: var(--oscuro);
  cursor: default;
  opacity: 1;
}
.pregunta-textarea.guardado {
  border-color: rgba(34,201,122,0.4);
  background: rgba(34,201,122,0.03);
}
.guardar-wrap {
  display: flex; align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  padding-top: 20px;
  border-top: 1px solid var(--gris-claro);
}
.btn-guardar {
  background: var(--morado);
  color: var(--blanco);
  border: none; border-radius: 8px;
  padding: 11px 24px;
  font-family: var(--sans);
  font-size: 14px; font-weight: 700;
  cursor: pointer;
  transition: all 0.18s;
  display: flex; align-items: center; gap: 8px;
}
.btn-guardar:hover { background: #4500cc; transform: translateY(-1px); }
.btn-guardar:disabled {
  background: var(--verde);
  cursor: default; transform: none;
}
.btn-editar {
  background: transparent;
  color: var(--gris);
  border: 1px solid var(--gris-claro);
  border-radius: 8px;
  padding: 10px 18px;
  font-family: var(--sans);
  font-size: 13px; font-weight: 500;
  cursor: pointer;
  transition: all 0.18s;
  display: none;
}
.btn-editar:hover { border-color: var(--oscuro); color: var(--oscuro); }
.btn-editar.visible { display: block; }
.guardar-hint {
  font-size: 12px; color: var(--gris);
  font-family: var(--mono);
}
.guardar-hint.guardado-msg { color: var(--verde); }
.ejercicio-footer {
  margin-top: 16px;
  padding: 12px 16px;
  background: rgba(87,0,246,0.05);
  border-radius: 8px;
  font-size: 13px; color: var(--gris);
  font-family: var(--mono);
  border: 1px solid rgba(87,0,246,0.1);
}
.ejercicio-footer.completado-footer {
  background: rgba(34,201,122,0.06);
  border-color: rgba(34,201,122,0.2);
  color: var(--verde);
}

/* ── CRITERIO FINAL ── */
.criterio-wrap {
  margin-top: 64px;
  position: relative;
}
.criterio-wrap::before {
  content: '';
  position: absolute;
  top: -32px; left: 50%; transform: translateX(-50%);
  width: 1px; height: 32px;
  background: linear-gradient(to bottom, transparent, var(--gris-claro));
}
.criterio-card {
  background: var(--noche);
  border-radius: 16px;
  padding: 40px 44px;
  position: relative;
  overflow: hidden;
}
.criterio-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top left, rgba(87,0,246,0.25) 0%, transparent 60%);
  pointer-events: none;
}
.criterio-eyebrow {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(255,255,255,0.3); margin-bottom: 18px;
  display: flex; align-items: center; gap: 10px;
}
.criterio-eyebrow::after {
  content: '';
  flex: 1; height: 1px;
  background: rgba(255,255,255,0.06);
}
.criterio-frase {
  font-size: 22px; font-weight: 700;
  color: var(--blanco); line-height: 1.35;
  margin-bottom: 16px; position: relative;
}
.criterio-frase em { font-style: normal; color: var(--amarillo); }
.criterio-sub {
  font-size: 15px; color: rgba(136,146,170,0.8); line-height: 1.6; position: relative;
}

/* ── LO QUE SIGUE / NAV ANTERIOR-SIGUIENTE ── */
.siguiente-wrap { margin-top: 32px; display: flex; flex-direction: column; gap: 10px; }
.siguiente-fila { display: flex; gap: 10px; }
@media (max-width: 560px) { .siguiente-fila { flex-direction: column; } }
.siguiente, .anterior {
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  background: var(--blanco);
  border: 1px solid var(--gris-claro);
  border-radius: 12px;
  cursor: pointer; transition: all 0.18s;
  text-decoration: none;
  flex: 1;
}
.siguiente:hover, .anterior:hover {
  border-color: var(--morado);
  box-shadow: 0 2px 16px rgba(87,0,246,0.08);
}
.siguiente-eyebrow, .anterior-eyebrow {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--gris); margin-bottom: 5px;
}
.siguiente-titulo, .anterior-titulo { font-size: 15px; font-weight: 700; color: var(--oscuro); }
.siguiente-arrow, .anterior-arrow {
  font-size: 20px; color: var(--morado);
  transition: transform 0.18s;
  flex-shrink: 0;
  margin-left: 16px;
}
.anterior-arrow { margin-left: 0; margin-right: 16px; order: -1; }
.siguiente:hover .siguiente-arrow { transform: translateX(4px); }
.anterior:hover .anterior-arrow { transform: translateX(-4px); }

.volver-home-wrap { text-align: center; margin-top: 40px; }
.volver-home {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--mono); font-size: 12px; color: var(--gris);
  text-decoration: none; transition: color 0.15s;
}
.volver-home:hover { color: var(--morado); }

/* ── EQ PARAMÉTRICO REAL (shared/eq-tool.js) — reutilizable en cualquier módulo ── */
.eqtool-wrap { margin-top: 32px; background: var(--blanco); border: 1px solid var(--gris-claro); border-radius: 16px; overflow: hidden; }
.eqtool-header { background: var(--oscuro); padding: 20px 24px; display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.eqtool-tag { font-family: var(--mono); font-size: 10px; color: var(--amarillo); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 8px; }
.eqtool-contexto { font-size: 13px; color: rgba(255,255,255,0.7); line-height: 1.5; max-width: 480px; }
.eqtool-ref-badge { margin-top: 8px; display: inline-block; font-family: var(--mono); font-size: 10px; color: var(--amarillo); background: rgba(245,200,66,0.1); border: 1px solid rgba(245,200,66,0.25); padding: 4px 9px; border-radius: 20px; }
.eqtool-play-btn { flex-shrink: 0; margin-top: 2px; background: var(--morado); color: var(--blanco); border: none; border-radius: 10px; padding: 12px 22px; font-family: var(--sans); font-size: 14px; font-weight: 700; cursor: pointer; transition: all 0.18s; white-space: nowrap; }
.eqtool-play-btn:hover { background: #4500cc; transform: translateY(-1px); }
.eqtool-play-btn:disabled { opacity: 0.6; cursor: default; transform: none; }
.eqtool-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; padding: 14px 24px; border-bottom: 1px solid var(--gris-claro); }
.eqtool-type-btn { font-size: 11px; padding: 6px 12px; border-radius: 6px; border: 1px solid var(--gris-claro); background: transparent; color: var(--gris); cursor: pointer; font-family: var(--mono); transition: all 0.15s; }
.eqtool-type-btn:hover, .eqtool-type-btn.active { background: var(--morado); border-color: var(--morado); color: var(--blanco); }
.eqtool-bypass-btn { margin-left: auto; font-size: 11px; padding: 6px 12px; border-radius: 6px; border: 1px solid var(--gris-claro); background: transparent; color: var(--gris); cursor: pointer; font-family: var(--mono); transition: all 0.15s; }
.eqtool-bypass-btn:hover { border-color: var(--amarillo); color: var(--oscuro); }
.eqtool-bypass-btn.active { background: var(--amarillo); border-color: var(--amarillo); color: var(--noche); }
.eqtool-canvas-wrap { background: var(--blanco); }
.eqtool-canvas { width: 100%; height: 200px; display: block; cursor: crosshair; touch-action: none; }
.eqtool-knobs { background: var(--noche); padding: 22px 20px 20px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; position: relative; }
.eqtool-knobs::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: rgba(255,255,255,0.06); }
.eqtool-knob-wrap { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.eqtool-knob-label { font-family: var(--mono); font-size: 10px; color: rgba(255,255,255,0.45); text-transform: uppercase; letter-spacing: 0.08em; }
.eqtool-knob {
  width: 60px; height: 60px; border-radius: 50%;
  background: radial-gradient(circle at 33% 28%, #333c5c, #10142a 72%);
  box-shadow: 0 3px 10px rgba(0,0,0,0.45), inset 0 0 0 1px rgba(255,255,255,0.05), inset 0 1px 1px rgba(255,255,255,0.08);
  position: relative; cursor: ns-resize; touch-action: none; user-select: none;
}
.eqtool-knob::after { content: ''; position: absolute; inset: -6px; border-radius: 50%; border: 1px solid rgba(87,0,246,0); transition: border-color 0.15s; }
.eqtool-knob:hover::after { border-color: rgba(87,0,246,0.35); }
.eqtool-knob.dragging::after { border-color: var(--morado); }
.eqtool-knob-indicator {
  position: absolute; top: 7px; left: 50%; width: 3px; height: 20px;
  background: var(--amarillo); border-radius: 2px; margin-left: -1.5px;
  transform-origin: 50% 23px; box-shadow: 0 0 4px rgba(245,200,66,0.5);
}
.eqtool-knob-val { font-family: var(--mono); font-size: 12px; color: var(--amarillo); font-weight: 700; background: rgba(255,255,255,0.06); padding: 2px 9px; border-radius: 10px; min-width: 56px; text-align: center; }
.eqtool-hint { padding: 12px 24px; font-size: 12px; color: var(--gris); font-family: var(--mono); text-align: center; background: var(--fondo); }

/* ── MEZCLADOR MULTITRACK CON EQ POR CANAL (shared/mix-tool.js) ── */
.mixtool-wrap { margin-top: 32px; background: var(--noche); border-radius: 16px; overflow: hidden; position: relative; }
.mixtool-header { padding: 22px 24px 18px; display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; border-bottom: 1px solid rgba(255,255,255,0.07); }
.mixtool-tag { font-family: var(--mono); font-size: 10px; color: var(--amarillo); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 8px; }
.mixtool-titulo { font-size: 17px; font-weight: 700; color: var(--blanco); margin-bottom: 6px; }
.mixtool-contexto { font-size: 13px; color: rgba(255,255,255,0.65); line-height: 1.5; max-width: 460px; }
.mixtool-play-btn { flex-shrink: 0; margin-top: 2px; background: var(--morado); color: var(--blanco); border: none; border-radius: 10px; padding: 12px 22px; font-family: var(--sans); font-size: 14px; font-weight: 700; cursor: pointer; transition: all 0.18s; white-space: nowrap; }
.mixtool-play-btn:hover { background: #4500cc; transform: translateY(-1px); }
.mixtool-play-btn:disabled { opacity: 0.6; cursor: default; transform: none; }
.mixtool-channels { padding: 20px 24px; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.mixtool-channel { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; padding: 14px 16px 16px; transition: border-color 0.18s; }
.mixtool-channel.activo { border-color: rgba(87,0,246,0.4); }
.mixtool-channel-head { margin-bottom: 10px; }
.mixtool-channel-name { font-size: 13px; font-weight: 700; color: var(--blanco); }
.mixtool-channel-role { font-size: 11px; color: rgba(255,255,255,0.4); margin-top: 1px; }
.mixtool-row { display: grid; grid-template-columns: 34px 1fr 54px; align-items: center; gap: 6px; margin-bottom: 10px; }
.mixtool-row-label { font-family: var(--mono); font-size: 10px; color: rgba(255,255,255,0.4); text-transform: uppercase; }
.mixtool-slider { width: 100%; accent-color: var(--morado); }
.mixtool-row-val { font-family: var(--mono); font-size: 10px; color: var(--amarillo); text-align: right; white-space: nowrap; }
.mixtool-mini-canvas-wrap { margin: 4px 0 10px; border-radius: 8px; overflow: hidden; }
.mixtool-mini-canvas { width: 100%; height: 100px; display: block; }
.mixtool-type-row { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 12px; }
.mixtool-type-btn { font-size: 10px; padding: 4px 8px; }
.mixtool-knobs.eqtool-knobs { background: transparent; padding: 0; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.mixtool-knobs.eqtool-knobs::before { display: none; }
.mixtool-knobs .eqtool-knob { width: 46px; height: 46px; }
.mixtool-knobs .eqtool-knob-indicator { top: 5px; height: 16px; transform-origin: 50% 18px; }
.mixtool-knobs .eqtool-knob-label { color: rgba(255,255,255,0.4); font-size: 9px; }
.mixtool-knobs .eqtool-knob-val { font-size: 10px; padding: 1px 6px; min-width: 44px; }
.mixtool-hint { padding: 12px 24px; font-size: 12px; color: rgba(255,255,255,0.45); font-family: var(--mono); text-align: center; }

/* ── MINI PLAYER INLINE (shared/mini-player.js) ── */
.mini-player-btn { margin-top: 10px; display: inline-flex; align-items: center; gap: 8px; font-family: var(--sans); font-size: 13px; font-weight: 700; color: var(--blanco); background: var(--verde); border: none; border-radius: 8px; padding: 9px 16px; cursor: pointer; transition: all 0.15s; }
.mini-player-btn:hover { background: #1CAF68; transform: translateY(-1px); }
.mini-player-btn.playing { background: #1CAF68; }
.mini-player-btn.loading { opacity: 0.65; cursor: default; transform: none; }
.mini-player-icon { font-size: 11px; line-height: 1; color: var(--blanco); }
.mini-player-label { color: var(--blanco); }

/* ── MATCHING TONAL — curvas reales de EQ (shared/match-tool.js) ── */
.matchtool-wrap { margin-top: 24px; background: var(--blanco); border: 1px solid var(--gris-claro); border-radius: 16px; overflow: hidden; }
.matchtool-header { background: var(--oscuro); padding: 16px 22px; }
.matchtool-tag { font-family: var(--mono); font-size: 10px; color: var(--gris); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 4px; }
.matchtool-titulo { font-size: 14px; font-weight: 700; color: var(--blanco); }
.matchtool-body { padding: 18px 22px 22px; }
.matchtool-canvas-wrap { margin-bottom: 14px; }
.matchtool-canvas { width: 100%; height: 190px; display: block; border-radius: 8px; }
.matchtool-legend { display: flex; gap: 16px; margin-bottom: 14px; font-size: 11px; font-family: var(--mono); }
.matchtool-legend-item { display: flex; align-items: center; gap: 6px; }
.matchtool-legend-dot { width: 10px; height: 10px; border-radius: 50%; }
.matchtool-controls { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; margin-bottom: 14px; }
.matchtool-control { background: var(--fondo); border-radius: 9px; padding: 10px 12px; }
.matchtool-control-label { font-family: var(--mono); font-size: 10px; color: var(--gris); text-transform: uppercase; margin-bottom: 6px; display: flex; justify-content: space-between; }
.matchtool-control-val { color: var(--morado); font-weight: 700; }
.matchtool-slider { width: 100%; accent-color: var(--morado); }
.matchtool-analysis { padding: 12px 14px; background: var(--fondo); border-radius: 10px; font-size: 12px; color: var(--oscuro); line-height: 1.6; }
.matchtool-analysis strong { color: var(--morado); }