/* ==========================================================================
   EAS — Escuela Avanzada de Superconsciencia
   CSS Global v3.0 — Producción Premium (Evolución de v2)
   ========================================================================== */

/* --- Design Tokens (Evolución v3) --- */
:root {
  /* Colores — Paleta refinada */
  --color-bg-deep:            #080c1f;
  --color-bg-mid:             #101630;
  --color-bg-mid-glass:       rgba(16,22,48,0.85);
  --color-bg-light:           #f5f0e1;
  --color-bg-cream-warm:      #f8f3e6;
  --color-gold:               #d4a843;
  --color-gold-soft:          #e0be6a;
  --color-gold-deep:          #b08a2e;
  --color-gold-glow:          rgba(212,168,67,0.15);
  --color-text-on-dark:       #f0ebe0;
  --color-text-on-dark-muted: #a8a295;
  --color-text-on-light:      #0f1429;
  --color-whatsapp:           #128C7E;
  --color-whatsapp-fab:       #25D366;
  --color-error:              #e05555;

  /* Tipografía */
  --font-display: 'Cormorant Garamond', serif;
  --font-accent:  'Cinzel', serif;
  --font-body:    'Inter', sans-serif;

  /* Espaciado compacto (heredado de v2) */
  --space-xs:  0.4rem;
  --space-sm:  0.6rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 2.5rem;
  --space-3xl: 3.5rem;

  /* Bordes y radios */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;

  /* Transiciones refinadas */
  --transition-fast:  0.2s cubic-bezier(0.4,0,0.2,1);
  --transition-mid:   0.35s cubic-bezier(0.4,0,0.2,1);
  --transition-slow:  0.5s cubic-bezier(0.4,0,0.2,1);

  /* Sombras */
  --shadow-sm:       0 1px 4px rgba(0,0,0,0.15);
  --shadow-card:     0 4px 20px rgba(0,0,0,0.25);
  --shadow-elevated: 0 12px 40px rgba(0,0,0,0.4);
  --shadow-gold:     0 4px 24px rgba(212,168,67,0.2);

  /* Ancho máximo */
  --max-width: 1200px;
}

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

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-on-light);
  background: var(--color-bg-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

/* --- Accesibilidad: foco visible --- */
:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--color-gold);
  color: var(--color-text-on-light);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-sm);
  z-index: 10000;
  font-weight: 600;
  font-size: 0.9rem;
}

.skip-link:focus {
  top: var(--space-md);
}

/* --- Layout base --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-xl) 0;
}

.section--dark {
  background: var(--color-bg-deep);
  color: var(--color-text-on-dark);
}

.section--mid {
  background: var(--color-bg-mid);
  color: var(--color-text-on-dark);
}

.section--light {
  background: var(--color-bg-light);
  color: var(--color-text-on-light);
}

.section--cream {
  background: var(--color-bg-cream-warm);
  color: var(--color-text-on-light);
}

/* --- Tipografía --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
}

.heading-accent {
  font-family: var(--font-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin-bottom: var(--space-md);
  color: var(--color-gold);
}

.section-title--light {
  color: var(--color-gold-deep);
}

.text-muted {
  color: var(--color-text-on-dark-muted);
}

.text-muted--light {
  color: #5a5a5a;
}

.text-center { text-align: center; }
.text-gold { color: var(--color-gold); }

/* --- Header / Navegación (Evolución v3) --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(8,12,31,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(212,168,67,0.12);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xs);
  padding-bottom: var(--space-xs);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.site-logo img {
  height: 40px;
  width: auto;
}

.site-logo__name {
  font-family: var(--font-accent);
  font-size: 0.72rem;
  color: var(--color-gold-soft);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  line-height: 1.25;
}

.main-nav {
  display: flex;
  align-items: center;
}

.main-nav__list {
  display: flex;
  gap: 2px;
  flex-wrap: wrap;
}

.main-nav__link {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  color: var(--color-text-on-dark-muted);
  font-size: 0.82rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
  position: relative;
}

.main-nav__link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  border-radius: 1px;
  transition: width var(--transition-fast), left var(--transition-fast);
}

.main-nav__link:hover,
.main-nav__link:focus-visible {
  color: var(--color-gold-soft);
  background: rgba(212,168,67,0.06);
}

.main-nav__link:hover::after,
.main-nav__link:focus-visible::after {
  width: 60%;
  left: 20%;
}

.main-nav__link.active {
  color: var(--color-gold);
  background: rgba(212,168,67,0.1);
  font-weight: 600;
}

.main-nav__link.active::after {
  width: 70%;
  left: 15%;
}

/* Hamburguesa */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-xs);
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle__bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-on-dark);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 1024px) {
  .menu-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(8,12,31,0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-3xl) var(--space-lg);
    transition: right var(--transition-mid);
    box-shadow: var(--shadow-elevated);
    overflow-y: auto;
    z-index: 999;
  }

  .main-nav.is-open {
    right: 0;
  }

  .main-nav__list {
    flex-direction: column;
    gap: var(--space-xs);
  }

  .main-nav__link {
    font-size: 0.95rem;
    padding: var(--space-sm) var(--space-md);
  }

  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 998;
  }

  .nav-overlay.is-visible {
    display: block;
  }
}

/* --- Botones (Evolución v3) --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  font-weight: 600;
  font-size: 0.92rem;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  text-align: center;
  line-height: 1.4;
  position: relative;
  overflow: hidden;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

/* Primario (dorado) */
.btn--primary {
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-deep));
  color: var(--color-text-on-light);
}

.btn--primary:hover {
  box-shadow: var(--shadow-gold);
}

/* WhatsApp */
.btn--whatsapp {
  background: var(--color-whatsapp);
  color: #fff;
}

.btn--whatsapp:hover {
  background: #0f7a6e;
  box-shadow: 0 4px 20px rgba(18,140,126,0.3);
}

/* Verde (Curso Preparatorio) */
.btn--green {
  background: linear-gradient(135deg, #34d399, #059669);
  color: #fff;
}

.btn--green:hover {
  background: linear-gradient(135deg, #059669, #047857);
  box-shadow: 0 4px 20px rgba(52,211,153,0.3);
}

/* Secundario (outline) */
.btn--outline {
  border: 2px solid var(--color-gold);
  color: var(--color-gold);
  background: transparent;
}

.btn--outline:hover {
  background: var(--color-gold);
  color: var(--color-text-on-light);
  box-shadow: var(--shadow-gold);
}

/* Outline sobre fondo oscuro */
.btn--outline-light {
  border: 2px solid rgba(240,235,224,0.4);
  color: var(--color-text-on-dark);
  background: transparent;
}

.btn--outline-light:hover {
  background: rgba(240,235,224,0.1);
  border-color: var(--color-text-on-dark);
}

/* Botón compacto */
.btn--sm {
  padding: var(--space-xs) var(--space-md);
  font-size: 0.82rem;
}

/* Grupo de botones horizontal */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
}

.btn-group--center {
  justify-content: center;
}

/* --- Cards (Evolución v3: glassmorphism sutil) --- */
.card {
  background: rgba(16,22,48,0.6);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(212,168,67,0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
  border-color: rgba(212,168,67,0.2);
}

/* Micro-interacción: feedback táctil en móvil */
.card:active,
.curso-card:active,
.cualidad-card:active,
.course-panel:active {
  transform: scale(0.98);
}

.card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.card__text {
  color: var(--color-text-on-dark-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* Grid de cards */
.card-grid {
  display: grid;
  gap: var(--space-md);
}

.card-grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card-grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card-grid--4 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* Card con borde dorado */
.card--gold {
  border-color: rgba(212,168,67,0.2);
}

.card--gold:hover {
  border-color: rgba(212,168,67,0.4);
  box-shadow: var(--shadow-gold);
}

/* Card sobre fondo claro */
.card--light {
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(8px);
  border-color: rgba(15,20,41,0.08);
}

.card--light .card__title {
  color: var(--color-gold-deep);
}

.card--light .card__text {
  color: var(--color-text-on-light);
}

/* --- Hero (Evolución v3: máx 50vh) --- */
.hero {
  position: relative;
  min-height: 50vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--color-bg-deep);
  color: var(--color-text-on-dark);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(212,168,67,0.07) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(16,22,48,0.7) 0%, transparent 50%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../assets/images/logo-eas.png') center/280px no-repeat;
  opacity: 0.05;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  padding: var(--space-2xl) var(--space-md);
}

.hero__badge {
  position: relative;
  display: inline-block;
  padding: 0.55rem 1.35rem;
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-deep));
  color: var(--color-text-on-light);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(212, 168, 67, 0.4);
  box-shadow:
    0 0 12px rgba(212, 168, 67, 0.25),
    0 0 30px rgba(212, 168, 67, 0.1);
  margin-bottom: var(--space-md);
  overflow: hidden;
}

/* === VARIANTES DE ANIMACIÓN DEL BADGE === */
/* Descomentar solo una a la vez */

/* Variante A: Shimmer (ACTIVA) */
.hero__badge::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.15) 40%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0.15) 60%,
    transparent 100%
  );
  animation: badge-shimmer 3.5s ease-in-out infinite;
  pointer-events: none;
}

@keyframes badge-shimmer {
  0%       { left: -100%; }
  40%, 100% { left: 200%; }
}

/* Variante B: Pulso dorado */
/* .hero__badge::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 0 0 rgba(212, 168, 67, 0.5);
  animation: badge-pulse 2.5s ease-in-out infinite;
  pointer-events: none;
}

@keyframes badge-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(212, 168, 67, 0.5); }
  50%      { box-shadow: 0 0 0 8px rgba(212, 168, 67, 0); }
} */

/* Variante C: Barra de progreso en borde inferior */
/* .hero__badge::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.7), transparent);
  animation: badge-progress 2s ease-in-out infinite;
  transform-origin: left center;
  pointer-events: none;
}

@keyframes badge-progress {
  0%   { transform: scaleX(0); opacity: 0; }
  50%  { transform: scaleX(1); opacity: 1; }
  100% { transform: scaleX(0); opacity: 0; }
} */

/* Variante D: Typing effect */
/* .hero__badge--typing {
  border-right: 2px solid rgba(255, 255, 255, 0.7);
  white-space: nowrap;
  min-width: 0;
  animation: badge-cursor-blink 0.8s step-end infinite;
}

.hero__badge--typing::after {
  display: none;
}

@keyframes badge-cursor-blink {
  0%, 100% { border-right-color: rgba(255, 255, 255, 0.7); }
  50%      { border-right-color: transparent; }
} */

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  font-weight: 700;
  line-height: 1.12;
  margin-bottom: var(--space-md);
  color: var(--color-text-on-dark);
}

.hero__title span {
  color: var(--color-gold);
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-text-on-dark-muted);
  margin-bottom: var(--space-lg);
  line-height: 1.65;
}

.hero__region {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-lg);
}

/* --- Ornamento decorativo --- */
.ornament {
  display: block;
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
  margin: 0 auto var(--space-lg);
  opacity: 0.5;
}

.ornament--wide {
  width: 100px;
}

/* --- Tabs (Evolución v3) --- */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  justify-content: center;
  margin-bottom: var(--space-lg);
  border-bottom: 2px solid rgba(212,168,67,0.12);
  padding-bottom: var(--space-xs);
}

.tab-btn {
  padding: var(--space-xs) var(--space-md);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-text-on-dark-muted);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
  border: none;
  background: none;
  cursor: pointer;
  position: relative;
}

.tab-btn::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-gold);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.tab-btn:hover {
  color: var(--color-gold-soft);
}

.tab-btn.active {
  color: var(--color-gold);
  background: rgba(212,168,67,0.08);
  font-weight: 600;
}

.tab-btn.active::after {
  transform: scaleX(1);
}

.tab-panel {
  display: none;
  animation: fadeIn 0.35s ease;
}

.tab-panel.active {
  display: block;
  max-width: 760px;
  margin: 0 auto;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* --- Acordeón (FAQ) (Evolución v3) --- */
.accordion {
  border: 1px solid rgba(212,168,67,0.1);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--space-sm);
  transition: border-color var(--transition-fast);
}

.accordion:hover {
  border-color: rgba(212,168,67,0.2);
}

.accordion__header {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  background: rgba(16,22,48,0.5);
  color: var(--color-text-on-dark);
  font-weight: 500;
  font-size: 0.95rem;
  text-align: left;
  cursor: pointer;
  border: none;
  transition: background var(--transition-fast);
}

.accordion__header:hover {
  background: rgba(212,168,67,0.06);
}

.accordion__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
  color: var(--color-gold);
}

.accordion.is-open .accordion__icon {
  transform: rotate(180deg);
}

.accordion__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-mid);
}

.accordion.is-open .accordion__body {
  max-height: 800px;
}

.accordion__content {
  padding: var(--space-sm) var(--space-md) var(--space-md);
  color: var(--color-text-on-dark-muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

/* --- FAB WhatsApp (Evolución v3) --- */
.fab-whatsapp {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  z-index: 900;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-whatsapp-fab);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 24px rgba(37,211,102,0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.fab-whatsapp:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 32px rgba(37,211,102,0.5);
}

.fab-whatsapp svg {
  width: 28px;
  height: 28px;
  fill: #fff;
}

/* --- Formularios (Evolución v3) --- */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  margin-bottom: var(--space-xs);
  color: var(--color-text-on-dark);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(212,168,67,0.15);
  border-radius: var(--radius-sm);
  color: var(--color-text-on-dark);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: rgba(168,162,149,0.6);
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-gold);
  outline: none;
  box-shadow: 0 0 0 3px rgba(212,168,67,0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* --- Footer (Evolución v3) --- */
.site-footer {
  background: var(--color-bg-deep);
  color: var(--color-text-on-dark-muted);
  border-top: 1px solid rgba(212,168,67,0.08);
  padding: var(--space-xl) 0 var(--space-lg);
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.footer-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer-logo img {
  height: 32px;
  width: auto;
}

.footer-logo a {
  font-family: var(--font-accent);
  font-size: 0.7rem;
  color: var(--color-gold-soft);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer-tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.88rem;
  color: var(--color-text-on-dark-muted);
  opacity: 0.6;
}

.footer-copy {
  font-size: 0.78rem;
  opacity: 0.7;
}

.footer-links {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 0.4rem 1.2rem;
  align-items: center;
  justify-content: center;
}

.footer-links__title {
  font-family: var(--font-accent);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  width: 100%;
  margin-top: var(--space-xs);
  margin-bottom: 0;
}

.footer-links__title:first-child {
  margin-top: 0;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--color-text-on-dark-muted);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-gold-soft);
}

@media (max-width: 600px) {
  .footer-links {
    gap: 0.3rem 0.8rem;
  }
}

/* --- Barra de progreso (páginas largas) --- */
.progress-bar {
  position: sticky;
  top: 52px;
  z-index: 99;
  height: 3px;
  background: rgba(212,168,67,0.08);
}

.progress-bar__fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-gold-deep), var(--color-gold));
  transition: width 0.1s linear;
}

/* --- Validación de formulario --- */
.form-input.is-invalid,
.form-textarea.is-invalid {
  border-color: var(--color-error);
  box-shadow: 0 0 0 2px rgba(224,85,85,0.15);
}

.form-input.is-valid,
.form-textarea.is-valid {
  border-color: var(--color-gold);
}

/* --- Utilidades de espaciado --- */
.mb-xs  { margin-bottom: var(--space-xs); }
.mb-sm  { margin-bottom: var(--space-sm); }
.mb-md  {   margin-bottom: var(--space-md);
  overflow: hidden;
}
.mb-lg  { margin-bottom: var(--space-lg); }
.mb-xl  { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.mt-xs  { margin-top: var(--space-xs); }
.mt-sm  { margin-top: var(--space-sm); }
.mt-md  { margin-top: var(--space-md); }
.mt-lg  { margin-top: var(--space-lg); }
.mt-xl  { margin-top: var(--space-xl); }

/* --- Utilidades de layout --- */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* --- Step grid (Proceso admisión) --- */
.step-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
}

.step-card {
  text-align: center;
  padding: var(--space-md);
  background: rgba(16,22,48,0.5);
  border: 1px solid rgba(212,168,67,0.1);
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.step-card:hover {
  transform: translateY(-2px);
  border-color: rgba(212,168,67,0.25);
}

.step-card__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-deep));
  color: var(--color-text-on-light);
  font-family: var(--font-accent);
  font-weight: 700;
  font-size: 1rem;
  border-radius: 50%;
  margin-bottom: var(--space-sm);
}

.step-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--color-gold-soft);
  margin-bottom: var(--space-xs);
}

.step-card__text {
  font-size: 0.85rem;
  color: var(--color-text-on-dark-muted);
  line-height: 1.5;
}

/* --- Curso panel grid --- */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.course-panel {
  background: rgba(16,22,48,0.6);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(212,168,67,0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.course-panel:hover {
  transform: translateY(-3px);
  border-color: rgba(212,168,67,0.25);
  box-shadow: var(--shadow-card);
}

/* Panel activo — Curso Preparatorio */
.course-panel--active {
  border-color: rgba(52, 211, 153, 0.3);
  position: relative;
  overflow: hidden;
}

.course-panel--active::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(52, 211, 153, 0.06) 40%,
    rgba(52, 211, 153, 0.12) 50%,
    rgba(52, 211, 153, 0.06) 60%,
    transparent 100%
  );
  animation: panel-shimmer 4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes panel-shimmer {
  0%       { left: -100%; }
  40%, 100% { left: 200%; }
}

.course-panel__badge {
  display: inline-block;
  align-self: flex-start;
  padding: 2px var(--space-sm);
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-deep));
  color: var(--color-text-on-light);
  font-family: var(--font-accent);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
}

.course-panel__badge--green {
  background: linear-gradient(135deg, #34d399, #059669);
}

.course-panel__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.course-panel__desc {
  color: var(--color-text-on-dark-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  flex: 1;
  margin-bottom: var(--space-md);
}

.course-panel__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.course-panel__meta-item {
  font-size: 0.78rem;
  color: var(--color-text-on-dark-muted);
  background: rgba(212,168,67,0.06);
  padding: 2px var(--space-sm);
  border-radius: var(--radius-sm);
}

/* --- Modulo list (temario) --- */
.module-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.module-item {
  padding: var(--space-sm) var(--space-md);
  background: rgba(255,255,255,0.02);
  border-left: 3px solid var(--color-gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.module-item:hover {
  background: rgba(212,168,67,0.04);
  border-left-color: var(--color-gold-soft);
}

.module-item__title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-gold-soft);
  margin-bottom: 2px;
}

.module-item__desc {
  font-size: 0.85rem;
  color: var(--color-text-on-dark-muted);
  line-height: 1.55;
}

/* --- Mes label --- */
.month-label {
  font-family: var(--font-accent);
  font-size: 0.88rem;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid rgba(212,168,67,0.15);
}

.month-label:first-child {
  margin-top: 0;
}

/* --- Stats row --- */
.stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
  margin: var(--space-md) 0;
}

.stat-item {
  text-align: center;
  min-width: 100px;
}

.stat-item__value {
  font-family: var(--font-accent);
  font-size: 1.5rem;
  color: var(--color-gold);
  font-weight: 700;
}

.stat-item__label {
  font-size: 0.78rem;
  color: var(--color-text-on-dark-muted);
}

/* --- WhatsApp CTA box --- */
.whatsapp-cta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: rgba(18,140,126,0.08);
  border: 1px solid rgba(18,140,126,0.2);
  border-radius: var(--radius-md);
  margin: var(--space-md) 0;
}

.whatsapp-cta__icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  fill: var(--color-whatsapp-fab);
}

.whatsapp-cta__text {
  flex: 1;
  font-size: 0.95rem;
  color: var(--color-text-on-dark);
}

.whatsapp-cta__text strong {
  color: var(--color-whatsapp-fab);
}

/* --- Badge inline --- */
.badge {
  display: inline-block;
  padding: 2px var(--space-sm);
  font-family: var(--font-accent);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-sm);
}

.badge--gold {
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-deep));
  color: var(--color-text-on-light);
}

.badge--whatsapp {
  background: var(--color-whatsapp);
  color: #fff;
}

/* --- Divider --- */
.divider {
  border: none;
  border-top: 1px solid rgba(212,168,67,0.12);
  margin: var(--space-lg) 0;
}

.divider--light {
  border-top-color: rgba(15,20,41,0.08);
}

/* --- Intro text --- */
.intro-text {
  font-size: 1.05rem;
  line-height: 1.75;
  max-width: 720px;
}

.intro-text--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* --- Cita maestro (Fundamentos) --- */
.cita-maestro {
  padding: var(--space-md) var(--space-lg);
  border-left: 3px solid var(--color-gold);
  background: rgba(212,168,67,0.03);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: var(--space-md);
}

.cita-maestro__texto {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-style: italic;
  color: var(--color-text-on-dark-muted);
  line-height: 1.75;
  margin-bottom: var(--space-xs);
}

.cita-maestro__autor {
  font-family: var(--font-accent);
  font-size: 0.72rem;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* --- Maestro card (Fundamentos) --- */
.maestro-card {
  background: rgba(16,22,48,0.5);
  border: 1px solid rgba(212,168,67,0.12);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-sm);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.maestro-card:hover {
  transform: translateY(-2px);
  border-color: rgba(212,168,67,0.25);
}

.maestro-card__nombre {
  font-family: var(--font-accent);
  font-size: 0.82rem;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xs);
}

.maestro-card__texto {
  font-size: 0.92rem;
  color: var(--color-text-on-dark-muted);
  line-height: 1.6;
}

/* --- Dos columnas (Fundamentos) --- */
.dos-columnas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .dos-columnas {
    grid-template-columns: 1fr;
  }
}

/* --- Grupo badge (activo) --- */
.grupo-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  background: rgba(18, 140, 126, 0.1);
  border: 1px solid rgba(18, 140, 126, 0.25);
  border-radius: 999px;
  font-family: var(--font-accent);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #6ee7b7;
  margin-bottom: var(--space-lg);
}

.grupo-badge__dot {
  width: 8px;
  height: 8px;
  background: #34d399;
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.5); }
  50%      { opacity: 0.85; box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .grupo-badge__dot {
    animation: none;
  }
}

/* --- Fecha activa (evento en curso / próximo en vivo) ---
   Indica visualmente que la fecha corresponde a un evento en activo.
   Combina un punto pulsante (estilo YouTube Live) con un flicker
   sutil del texto: leve cambio de tono + glow verde. */
.fecha-activa {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  color: #34d399;
  font-weight: 600;
  line-height: 1.3;
}

.fecha-activa__dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  background: #34d399;
  border-radius: 50%;
  flex-shrink: 0;
  animation: fecha-activa-pulse 1.6s ease-in-out infinite;
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.55);
}

.fecha-activa__text {
  color: #34d399;
  animation: fecha-activa-flicker 1.6s ease-in-out infinite;
}

/* Si la fecha se envuelve dentro de un <strong>, anulamos
   cualquier color inline previo y dejamos que la animación
   tome el control. */
strong.fecha-activa__text {
  font-weight: 700;
}

@keyframes fecha-activa-pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.55);
    opacity: 1;
    transform: scale(1);
  }
  50% {
    box-shadow: 0 0 0 9px rgba(52, 211, 153, 0);
    opacity: 0.75;
    transform: scale(0.92);
  }
}

@keyframes fecha-activa-flicker {
  0%, 100% {
    color: #34d399;
    text-shadow: 0 0 0 rgba(52, 211, 153, 0);
  }
  50% {
    color: #6ee7b7;
    text-shadow: 0 0 14px rgba(52, 211, 153, 0.55);
  }
}

@media (prefers-reduced-motion: reduce) {
  .fecha-activa__dot,
  .fecha-activa__text {
    animation: none;
  }
  .fecha-activa__text {
    color: #34d399;
  }
}

/* --- Responsive adjustments --- */
@media (max-width: 768px) {
  .hero {
    min-height: 45vh;
  }

  .hero__content {
    padding: var(--space-xl) var(--space-md);
  }

  .section {
    padding: var(--space-lg) 0;
  }

  .course-grid {
    grid-template-columns: 1fr;
  }

  .step-grid {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }

  .btn-group {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-group .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .main-nav__link {
    font-size: 0.88rem;
    padding: var(--space-sm);
  }

  .hero__title {
    font-size: 1.6rem;
  }
}