/* ═══════════════════════════════════════════════════════════════
   PCD Formación — main.css
   Vanilla CSS · Mobile-first · Dark/Light · Atkinson Hyperlegible
   ═══════════════════════════════════════════════════════════════ */

/* ── 0. Import fuente Atkinson Hyperlegible desde Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:ital,wght@0,400;0,700;1,400;1,700&family=Atkinson+Hyperlegible+Next:wght@400;500;600;700;800&display=swap');

/* ── 1. Custom properties (tokens) ─────────────────────────────── */
:root {
  /* Paleta de color — modo claro */
  --color-bg-primary:    #f8f7f4;
  --color-bg-secondary:  #ffffff;
  --color-bg-tertiary:   #f0ede8;
  --color-bg-card:       #ffffff;
  --color-bg-accent:     #fff8ed;

  --color-text-primary:  #111125;
  --color-text-secondary:#2c2c44;
  --color-text-muted:    #525272;
  --color-text-inverse:  #ffffff;

  --color-brand-navy:    #121d33;
  --color-brand-amber:   #d97706;
  --color-brand-amber-dark: #b45309;
  --color-brand-teal:    #0f766e;
  --color-brand-teal-light: #0d9488;

  --color-success:       #047857;
  --color-error:         #b91c1c;
  --color-warning:       #b45309;

  --color-border:        #ded9d0;
  --color-border-strong: #bbb4a8;

  /* Sombras */
  --shadow-sm:  0 1px 3px rgba(26,39,68,.08), 0 1px 2px rgba(26,39,68,.06);
  --shadow-md:  0 4px 16px rgba(26,39,68,.10), 0 2px 6px rgba(26,39,68,.06);
  --shadow-lg:  0 10px 40px rgba(26,39,68,.14), 0 4px 12px rgba(26,39,68,.08);
  --shadow-xl:  0 20px 60px rgba(26,39,68,.18);
  --shadow-amber: 0 4px 20px rgba(217,119,6,.28);

  /* Tipografía (Ajustada para máxima legibilidad y presbicia) */
  --font-family:    'Atkinson Hyperlegible Next', 'Atkinson Hyperlegible', system-ui, sans-serif;
  --font-size-base: 1.1875rem; /* 19px */
  --font-size-sm:   1.0625rem; /* 17px */
  --font-size-xs:   0.96875rem;/* 15.5px */
  --font-size-lg:   1.3125rem; /* 21px */
  --font-size-xl:   1.5625rem; /* 25px */
  --font-size-2xl:  1.9375rem; /* 31px */
  --font-size-3xl:  2.375rem;  /* 38px */
  --font-size-4xl:  3.125rem;  /* 50px */
  --font-size-5xl:  3.875rem;  /* 62px */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  --line-height-tight: 1.25;
  --line-height-normal: 1.68;
  --line-height-relaxed: 1.8;

  /* Espaciado */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --container-max:   1200px;
  --container-sm:    680px;
  --container-pad:   clamp(1rem, 5vw, 2rem);

  /* Bordes */
  --radius-sm:   0.375rem;
  --radius-md:   0.75rem;
  --radius-lg:   1.25rem;
  --radius-xl:   2rem;
  --radius-full: 9999px;

  /* Transiciones */
  --transition-fast:   150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow:   400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Header */
  --header-h: 4.5rem;
}

/* ── Modo oscuro ─────────────────────────────────────────────── */
[data-theme="dark"] {
  --color-bg-primary:    #0d1117;
  --color-bg-secondary:  #161b22;
  --color-bg-tertiary:   #1c2230;
  --color-bg-card:       #1c2230;
  --color-bg-accent:     #1e1a10;

  --color-text-primary:  #e8e6e1;
  --color-text-secondary:#b0adb8;
  --color-text-muted:    #7a7a9a;
  --color-text-inverse:  #0d1117;

  --color-border:        #2d3548;
  --color-border-strong: #3d4558;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.3);
  --shadow-md:  0 4px 16px rgba(0,0,0,.4);
  --shadow-lg:  0 10px 40px rgba(0,0,0,.5);
  --shadow-xl:  0 20px 60px rgba(0,0,0,.6);
}

/* Auto dark mode (si no hay toggle manual) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg-primary:    #0d1117;
    --color-bg-secondary:  #161b22;
    --color-bg-tertiary:   #1c2230;
    --color-bg-card:       #1c2230;
    --color-bg-accent:     #1e1a10;
    --color-text-primary:  #e8e6e1;
    --color-text-secondary:#b0adb8;
    --color-text-muted:    #7a7a9a;
    --color-text-inverse:  #0d1117;
    --color-border:        #2d3548;
    --color-border-strong: #3d4558;
    --shadow-sm:  0 1px 3px rgba(0,0,0,.3);
    --shadow-md:  0 4px 16px rgba(0,0,0,.4);
    --shadow-lg:  0 10px 40px rgba(0,0,0,.5);
    --shadow-xl:  0 20px 60px rgba(0,0,0,.6);
  }
}

/* ── 2. Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  hanging-punctuation: first last;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  min-height: 100dvh;
  transition: background-color var(--transition-slow), color var(--transition-slow);
  overflow-x: hidden;
}

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

a {
  color: var(--color-brand-amber);
  text-decoration-skip-ink: auto;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

a:hover { color: var(--color-brand-amber-dark); }

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
}

p { max-width: 70ch; }

/* SVG Icon styles */
.svg-icon {
  display: inline-block;
  width: 1.15em;
  height: 1.15em;
  vertical-align: -0.15em;
  flex-shrink: 0;
}
.svg-icon--lg {
  width: 1.5em;
  height: 1.5em;
}
.svg-icon--xl {
  width: 2.75rem;
  height: 2.75rem;
}

/* ── 3. Utilidades de layout ─────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.container--sm {
  max-width: var(--container-sm);
}

.section {
  padding-block: var(--space-20);
}

.section--lg {
  padding-block: var(--space-32);
}

.section--alt {
  background-color: var(--color-bg-secondary);
}

.section--accent {
  background-color: var(--color-bg-accent);
}

.section--dark {
  background-color: var(--color-brand-navy);
  color: var(--color-text-inverse);
}

/* ── 4. Tipografía ───────────────────────────────────────────── */
.text-eyebrow {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-brand-amber);
  margin-bottom: var(--space-3);
}

.text-heading-xl {
  font-size: clamp(var(--font-size-3xl), 6vw, var(--font-size-5xl));
  font-weight: var(--font-weight-extrabold);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.text-heading-lg {
  font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
  font-weight: var(--font-weight-extrabold);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.text-heading-md {
  font-size: clamp(var(--font-size-xl), 3vw, var(--font-size-3xl));
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
}

.text-heading-sm {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
}

.text-lead {
  font-size: clamp(var(--font-size-base), 2vw, var(--font-size-lg));
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  max-width: 60ch;
}

.text-center { text-align: center; }
.text-muted   { color: var(--color-text-muted); }
.text-inverse { color: var(--color-text-inverse); }
.text-amber   { color: var(--color-brand-amber); }
.text-teal    { color: var(--color-brand-teal-light); }

/* Highlight en títulos */
.highlight {
  position: relative;
  display: inline;
  white-space: nowrap;
}
.highlight::after {
  content: '';
  position: absolute;
  bottom: 0.08em;
  left: -0.04em;
  right: -0.04em;
  height: 0.28em;
  background: var(--color-brand-amber);
  opacity: 0.35;
  border-radius: 2px;
  z-index: -1;
}

/* ── 5. Botones ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.875em 1.75em;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  line-height: 1;
  border: 2px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background-color var(--transition-normal),
    border-color     var(--transition-normal),
    color            var(--transition-normal),
    transform        var(--transition-fast),
    box-shadow       var(--transition-normal);
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

.btn:focus-visible {
  outline: 3px solid var(--color-brand-amber);
  outline-offset: 3px;
}

.btn:active { transform: scale(0.97); }

/* Primario — amber */
.btn--primary {
  background-color: var(--color-brand-amber);
  color: #1a1a00;
  box-shadow: var(--shadow-amber);
}
.btn--primary:hover {
  background-color: var(--color-brand-amber-dark);
  color: #1a1a00;
  box-shadow: 0 6px 28px rgba(245,158,11,.45);
  transform: translateY(-2px);
}

/* Secundario — contorno */
.btn--outline {
  background-color: transparent;
  border-color: var(--color-brand-amber);
  color: var(--color-brand-amber);
}
.btn--outline:hover {
  background-color: var(--color-brand-amber);
  color: #1a1a00;
  transform: translateY(-2px);
}

/* Fantasma blanco (para fondos oscuros) */
.btn--ghost-white {
  background-color: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.4);
  color: #fff;
  backdrop-filter: blur(4px);
}
.btn--ghost-white:hover {
  background-color: rgba(255,255,255,.22);
  border-color: rgba(255,255,255,.7);
  transform: translateY(-2px);
}

/* Tamaños */
.btn--lg {
  font-size: var(--font-size-lg);
  padding: 1em 2em;
}
.btn--sm {
  font-size: var(--font-size-xs);
  padding: 0.6em 1.2em;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

/* ── 6. Header ───────────────────────────────────────────────── */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background-color: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  transition:
    background-color var(--transition-slow),
    box-shadow var(--transition-normal);
}

.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-md);
  background-color: color-mix(in srgb, var(--color-bg-secondary) 95%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  width: 100%;
  gap: var(--space-4);
}

.logo-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text-primary);
  flex-shrink: 0;
}

.logo-img {
  height: 2.5rem;
  width: auto;
}

.logo-text {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-brand-navy);
  letter-spacing: -0.02em;
}

[data-theme="dark"] .logo-text { color: var(--color-text-primary); }

.header-contact {
  display: none;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.header-contact:hover { color: var(--color-brand-amber); }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

#header-cta {
  font-size: var(--font-size-sm);
  padding: 0.55em 1.35em;
  height: 2.5rem;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
}

/* Toggle tema */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-bg-tertiary);
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  transition: all var(--transition-normal);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--color-brand-amber);
  color: #fff;
  border-color: var(--color-brand-amber);
  transform: rotate(20deg);
}

.theme-toggle:focus-visible {
  outline: 3px solid var(--color-brand-amber);
  outline-offset: 3px;
}

/* ── 7. Hero ─────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100svh - var(--header-h));
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: calc(var(--header-h) + 1.25rem);
  padding-bottom: var(--space-12);
  background-color: var(--color-brand-navy);
  box-sizing: border-box;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  opacity: 0.22;
  filter: grayscale(20%);
}

.hero-bg-gradient {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(18,29,51,.96) 0%, rgba(18,29,51,.80) 60%, rgba(15,118,110,.55) 100%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.4em 1em;
  background: rgba(217,119,6,.18);
  border: 1px solid rgba(217,119,6,.4);
  border-radius: var(--radius-full);
  color: var(--color-brand-amber);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
  backdrop-filter: blur(4px);
  max-width: 100%;
  box-sizing: border-box;
  word-break: break-word;
}

.hero-title {
  font-size: clamp(1.85rem, 6.5vw, 4.25rem);
  font-weight: var(--font-weight-extrabold);
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: #fff;
  margin-bottom: var(--space-5);
  max-width: 100%;
  word-break: break-word;
}

.hero-title .accent {
  color: var(--color-brand-amber);
}

.hero-subtitle {
  font-size: clamp(var(--font-size-base), 2.2vw, var(--font-size-xl));
  line-height: var(--line-height-relaxed);
  color: rgba(255,255,255,.85);
  max-width: 54ch;
  margin-bottom: var(--space-8);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: var(--space-4) var(--space-6);
  margin-bottom: var(--space-8);
  max-width: 100%;
}

.hero-stat {
  display: flex;
  flex-direction: column;
}

.hero-stat__number {
  font-size: clamp(2rem, 5vw, var(--font-size-3xl));
  font-weight: var(--font-weight-extrabold);
  color: var(--color-brand-amber);
  line-height: 1;
}

.hero-stat__label {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,.70);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: var(--space-1);
}

/* Trust bar */
.trust-bar {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-8);
  max-width: 100%;
}

.trust-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.88);
}

.trust-item__icon {
  flex-shrink: 0;
  color: var(--color-brand-amber);
  display: inline-flex;
  margin-top: 0.15rem;
}

.hero-scroll-hint {
  position: absolute;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255,255,255,.45);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ── 8. Sección "El cambio que buscas" (problema/solución) ───── */
.problem-solution {
  display: grid;
  gap: var(--space-8);
}

.ps-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-8);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.ps-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.ps-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
}

.ps-card--problem::before { background: linear-gradient(90deg, #dc2626, #f97316); }
.ps-card--solution::before { background: linear-gradient(90deg, var(--color-brand-amber), var(--color-brand-teal)); }

.ps-icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  display: block;
}

/* ── Editorial Highlight Card ──────────────────────────────── */
.feature-highlight-card {
  margin-top: var(--space-6);
  padding: var(--space-6);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-brand-amber);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-highlight-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.feature-highlight-card__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-extrabold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-brand-amber);
  margin-bottom: var(--space-3);
}

.feature-highlight-card__text {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  color: var(--color-text-secondary);
  margin: 0;
}

/* ── 9. Cards de cursos ──────────────────────────────────────── */
.cursos-grid {
  display: grid;
  gap: var(--space-8);
}

.curso-card {
  background: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.curso-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-brand-amber);
}

.curso-card__img-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.curso-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4,0,0.2,1);
}

.curso-card:hover .curso-card__img { transform: scale(1.06); }

.curso-card__badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: var(--color-brand-amber);
  color: #1a1a00;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.curso-card__body {
  padding: var(--space-8);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.curso-card__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-extrabold);
  line-height: 1.2;
}

.curso-card__desc {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.curso-card__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.feature-item__icon {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  background: rgba(245,158,11,.15);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  margin-top: 0.1rem;
}

.curso-card__price {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.price-amount {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-brand-navy);
}

[data-theme="dark"] .price-amount { color: var(--color-brand-amber); }

.price-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ── 10. Proceso en pasos ────────────────────────────────────── */
.steps-grid {
  display: grid;
  gap: var(--space-8);
  position: relative;
}

.step {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
}

.step__number {
  flex-shrink: 0;
  width: 3.5rem;
  height: 3.5rem;
  background: linear-gradient(135deg, var(--color-brand-amber), var(--color-brand-amber-dark));
  color: #1a1a00;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-extrabold);
  box-shadow: var(--shadow-amber);
}

.step__body {}

.step__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-2);
}

.step__desc {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ── 11. Responsabilidad compartida ─────────────────────────── */
.responsibility-grid {
  display: grid;
  gap: var(--space-6);
}

.resp-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.resp-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.resp-card__emoji {
  font-size: 3.5rem;
  margin-bottom: var(--space-4);
  display: block;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,.2));
}

.resp-card__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-3);
  color: var(--color-brand-navy);
}

[data-theme="dark"] .resp-card__title { color: var(--color-brand-amber); }

.resp-card__list {
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.resp-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.resp-item::before {
  content: '✓';
  color: var(--color-success);
  font-weight: var(--font-weight-bold);
  flex-shrink: 0;
  margin-top: 0.15em;
}

/* ── 12. Autoridad / Social proof ───────────────────────────── */
.stats-band {
  display: grid;
  gap: var(--space-6);
  text-align: center;
}

.stat-item {}

.stat-item__number {
  font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
  font-weight: var(--font-weight-extrabold);
  color: var(--color-brand-amber);
  line-height: 1;
  display: block;
}

.stat-item__label {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.7);
  margin-top: var(--space-2);
  display: block;
}

/* ── 13. FAQ — Accordion ─────────────────────────────────────── */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-normal);
}

.faq-item.is-open {
  box-shadow: var(--shadow-md);
  border-color: var(--color-brand-amber);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  padding: var(--space-6);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  text-align: left;
  transition: background-color var(--transition-fast);
}

.faq-question:hover { background-color: var(--color-bg-tertiary); }

.faq-question:focus-visible {
  outline: 3px solid var(--color-brand-amber);
  outline-offset: -3px;
}

.faq-icon {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: var(--radius-full);
  background: var(--color-bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-brand-amber);
  transition: transform var(--transition-normal), background-color var(--transition-normal);
}

.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
  background: var(--color-brand-amber);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1);
}

.faq-answer-inner {
  padding: 0 var(--space-6) var(--space-6);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ── 14. Formulario de inscripción ───────────────────────────── */
.form-wrap {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-8), 5vw, var(--space-16));
  box-shadow: var(--shadow-lg);
  max-width: 680px;
  margin-inline: auto;
}

.form-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-2);
}

.form-subtitle {
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  font-size: var(--font-size-sm);
}

.form-grid {
  display: grid;
  gap: var(--space-5);
}

.form-row {
  display: grid;
  gap: var(--space-5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.form-label span { color: var(--color-error); }

.form-control {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.75em 1em;
  width: 100%;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
  appearance: none;
  -webkit-appearance: none;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-brand-amber);
  box-shadow: 0 0 0 4px rgba(245,158,11,.18);
}

.form-control.is-error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 4px rgba(220,38,38,.15);
}

.form-control.is-valid {
  border-color: var(--color-success);
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

.form-error-msg {
  font-size: var(--font-size-xs);
  color: var(--color-error);
  display: none;
}

.form-group.has-error .form-error-msg { display: block; }

/* Selector de curso con tarjetas */
.curso-selector {
  display: grid;
  gap: var(--space-4);
}

.curso-option {
  position: relative;
}

.curso-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.curso-option__label {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
  background: var(--color-bg-primary);
}

.curso-option__label:hover {
  border-color: var(--color-brand-amber);
  background: var(--color-bg-accent);
}

.curso-option input:checked + .curso-option__label {
  border-color: var(--color-brand-amber);
  background: var(--color-bg-accent);
  box-shadow: 0 0 0 4px rgba(245,158,11,.15);
}

.curso-option input:focus-visible + .curso-option__label {
  outline: 3px solid var(--color-brand-amber);
  outline-offset: 2px;
}

.curso-option__emoji { font-size: 2rem; flex-shrink: 0; }

.curso-option__info {}

.curso-option__name {
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-base);
}

.curso-option__detail {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: 2px;
}

.curso-option__check {
  margin-left: auto;
  width: 1.5rem;
  height: 1.5rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.curso-option input:checked + .curso-option__label .curso-option__check {
  background: var(--color-brand-amber);
  border-color: var(--color-brand-amber);
  color: #fff;
}

.curso-option input:checked + .curso-option__label .curso-option__check::after {
  content: '✓';
  font-size: 0.75rem;
  font-weight: var(--font-weight-bold);
}

/* Checkbox privacidad */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.form-check input[type="checkbox"] {
  width: 1.25rem;
  height: 1.25rem;
  min-width: 1.25rem;
  margin-top: 0.2em;
  accent-color: var(--color-brand-amber);
  cursor: pointer;
}

.form-check-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* Estado de envío del formulario */
.form-feedback {
  display: none;
  padding: var(--space-5);
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-semibold);
  margin-top: var(--space-4);
  align-items: center;
  gap: var(--space-3);
}

.form-feedback--success {
  background: rgba(5,150,105,.1);
  border: 1px solid rgba(5,150,105,.3);
  color: var(--color-success);
}

.form-feedback--error {
  background: rgba(220,38,38,.1);
  border: 1px solid rgba(220,38,38,.3);
  color: var(--color-error);
}

.form-feedback.is-visible { display: flex; }

/* Botón de submit con estado loading */
.btn--submit {
  width: 100%;
  position: relative;
}

.btn--submit[aria-busy="true"] {
  pointer-events: none;
  opacity: 0.8;
}

.btn--submit[aria-busy="true"]::after {
  content: '';
  position: absolute;
  right: 1.5em;
  top: 50%;
  transform: translateY(-50%);
  width: 1.2em;
  height: 1.2em;
  border: 2px solid rgba(26,26,0,.3);
  border-top-color: #1a1a00;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: translateY(-50%) rotate(360deg); }
}

/* ── 15. Trust badges ────────────────────────────────────────── */
.trust-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-8);
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.trust-item__icon { color: var(--color-success); font-size: 1.1em; }

/* ── 16. Footer ──────────────────────────────────────────────── */
.site-footer {
  background: var(--color-brand-navy);
  color: rgba(255,255,255,.75);
  padding-block: var(--space-16) var(--space-8);
}

.footer-grid {
  display: grid;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer-brand {}

.footer-brand .logo-text { color: #fff; }

.footer-tagline {
  margin-top: var(--space-3);
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.55);
  max-width: 30ch;
  line-height: var(--line-height-relaxed);
}

.footer-heading {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  color: rgba(255,255,255,.6);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover { color: var(--color-brand-amber); }

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.6);
  margin-bottom: var(--space-3);
  line-height: var(--line-height-relaxed);
}

.footer-contact-item a {
  color: rgba(255,255,255,.6);
  text-decoration: none;
}

.footer-contact-item a:hover { color: var(--color-brand-amber); }

.footer-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,.1);
  margin-bottom: var(--space-6);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,.4);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-legal a {
  color: rgba(255,255,255,.4);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-legal a:hover { color: var(--color-brand-amber); }

/* ── 17. Cookie Banner ───────────────────────────────────────── */
.cookie-banner {
  position: fixed;
  inset-inline: 0;
  bottom: 0;
  z-index: 200;
  padding: var(--space-6);
  background: color-mix(in srgb, var(--color-brand-navy) 97%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(255,255,255,.1);
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
}

.cookie-banner.is-visible { transform: translateY(0); }

.cookie-inner {
  max-width: var(--container-max);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4) var(--space-8);
}

.cookie-text {
  flex: 1;
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.8);
  min-width: 200px;
  line-height: var(--line-height-relaxed);
}

.cookie-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* ── 18. Sticky CTA móvil ────────────────────────────────────── */
.sticky-cta {
  display: flex;
  position: fixed;
  bottom: var(--space-4);
  inset-inline: var(--space-4);
  z-index: 90;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.sticky-cta.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.sticky-cta .btn {
  width: 100%;
  box-shadow: var(--shadow-xl);
}

/* ── 19. Scroll reveal ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── 20. Accesibilidad: skip link ────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--color-brand-amber);
  color: #1a1a00;
  font-weight: var(--font-weight-bold);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  text-decoration: none;
  z-index: 9999;
  transition: top var(--transition-fast);
}

.skip-link:focus { top: 1rem; }

/* ── 20b. Responsive — Móvil (<576px) ────────────────────────── */
@media (max-width: 576px) {
  :root {
    --header-h: 4rem;
  }

  .site-header {
    height: auto;
    min-height: var(--header-h);
  }

  .header-inner {
    padding-block: var(--space-2);
    gap: var(--space-2);
  }

  .header-actions {
    gap: var(--space-2);
    flex-shrink: 0;
  }

  #header-cta {
    display: inline-flex;
    font-size: var(--font-size-xs);
    padding: 0.5em 0.85em;
    border-radius: var(--radius-full);
  }

  .logo-text {
    font-size: var(--font-size-sm);
    letter-spacing: -0.01em;
  }

  .logo-img {
    height: 1.85rem;
  }

  .theme-toggle {
    width: 2.25rem;
    height: 2.25rem;
    flex-shrink: 0;
  }

  .btn-group {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: var(--space-3);
  }

  .btn-group .btn {
    width: 100%;
    justify-content: center;
    text-align: center;
  }
}

/* ── 21. Responsive — Tablet (≥768px) ───────────────────────── */
@media (min-width: 768px) {
  .header-contact { display: flex; }

  .problem-solution {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .responsibility-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .stats-band {
    grid-template-columns: repeat(4, 1fr);
  }

  .form-row {
    grid-template-columns: 1fr 1fr;
  }

  .curso-selector {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .sticky-cta {
    display: none; /* ya hay CTAs visibles en desktop */
  }
}

/* ── 22. Responsive — Desktop (≥1024px) ─────────────────────── */
@media (min-width: 1024px) {
  :root { --header-h: 5rem; }

  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-grid {
    grid-template-columns: 2.5fr 1fr 1fr 1.5fr;
  }

  .hero-content {
    max-width: 65%;
  }
}

/* ── 23. Print ───────────────────────────────────────────────── */
@media print {
  .site-header,
  .sticky-cta,
  .cookie-banner,
  .theme-toggle { display: none !important; }

  body { color: #000; background: #fff; }
}

/* ── 24. Focus management ────────────────────────────────────── */
:focus-visible {
  outline: 3px solid var(--color-brand-amber);
  outline-offset: 2px;
}

/* Remove outline for mouse users */
:focus:not(:focus-visible) { outline: none; }

/* ── 25. Animación contador numérico ─────────────────────────── */
@keyframes count-up {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.counter { animation: count-up 0.5s ease forwards; }

/* ── 26. Separadores visuales ────────────────────────────────── */
.section-divider {
  width: 4rem;
  height: 4px;
  background: linear-gradient(90deg, var(--color-brand-amber), var(--color-brand-teal));
  border-radius: var(--radius-full);
  margin-block: var(--space-4) var(--space-8);
}

.section-divider--center { margin-inline: auto; }

/* ── 27. Reduced motion ──────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  html { scroll-behavior: auto; }
}