/* ═══════════════════════════════════════════════════════
   TOKENS — Archetype 05 · Mouse-Reactive Gradient
   Adapted for: Crecimiento en Redes Sociales (digital marketing)
═══════════════════════════════════════════════════════ */
:root {
  --bg:          #07070e;
  --bg-2:        #0e0e1a;
  --bg-card:     #111120;
  --ink:         #f2f2ff;
  --ink-soft:    rgba(242, 242, 255, 0.75);
  --mute:        rgba(242, 242, 255, 0.38);
  --line:        rgba(242, 242, 255, 0.07);
  --accent:      #8b5cf6;
  --accent-2:    #06b6d4;
  --accent-glow: rgba(139, 92, 246, 0.35);
  --g1:          #7c3aed;
  --g2:          #2563eb;
  --g3:          #06b6d4;
  --g4:          #a78bfa;
  --radius:      16px;
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.87, 0, 0.13, 1);
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --nav-h:       72px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  overflow-x: clip;
  scroll-behavior: smooth;
  color-scheme: dark;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: clip;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
ul { list-style: none; }

/* ── Custom cursor ── */
.cursor,
.cursor-ring {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.3s var(--ease-out);
  will-change: transform;
}
.cursor {
  width: 8px; height: 8px;
  background: var(--accent);
  transform: translate(-50%, -50%);
}
.cursor-ring {
  width: 36px; height: 36px;
  border: 1.5px solid rgba(139, 92, 246, 0.5);
  transform: translate(-50%, -50%);
  transition: opacity 0.3s, width 0.2s var(--ease-out), height 0.2s var(--ease-out);
}
.cursor.is-ready, .cursor-ring.is-ready { opacity: 1; }
@media (hover: none) { .cursor, .cursor-ring { display: none; } }

/* ── Utility ── */
.section-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
}
.section-kicker {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: clamp(3rem, 6vw, 5rem);
  color: var(--ink);
}
.section-title em { color: var(--accent); font-style: normal; }

/* ── Reveals ── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
/* Safety net — reveal[data-split] never stays hidden */
.reveal[data-split] { opacity: 1; transform: none; }

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  border-radius: 100px;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out), background 0.2s;
  white-space: nowrap;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 48px var(--accent-glow);
  background: #7c3aed;
}
.btn-primary .btn-arrow { transition: transform 0.2s var(--ease-out); }
.btn-primary:hover .btn-arrow { transform: translateX(4px); }
.btn-primary.btn-full { width: 100%; justify-content: center; font-size: 1.1rem; padding: 1.2rem 2rem; }
.btn-primary.btn-xl { padding: 1.25rem 2.5rem; font-size: 1.15rem; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: 1rem 1.75rem;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1rem;
  border-radius: 100px;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--ink);
  background: rgba(139, 92, 246, 0.06);
}

/* ═══════════════════════════════════════════════════════
   NAV
═══════════════════════════════════════════════════════ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 900;
  transition: background 0.3s, backdrop-filter 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(7, 7, 14, 0.88);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom-color: var(--line);
}
.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  height: 100%;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-weight: 600;
}
.nav-logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  background: var(--accent);
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.nav-logo-text {
  font-size: 0.92rem;
  color: var(--ink-soft);
  letter-spacing: -0.01em;
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.25rem;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.88rem;
  border-radius: 100px;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
  white-space: nowrap;
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

/* ═══════════════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 3rem) clamp(1.5rem, 5vw, 4rem) 6rem;
  overflow: hidden;
}
.hero-gradient {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(circle 700px at var(--mx, 40%) var(--my, 40%),
      var(--g1) 0%, transparent 50%),
    radial-gradient(circle 900px at calc(var(--mx, 40%) + 20%) calc(var(--my, 40%) - 20%),
      var(--g2) 0%, transparent 50%),
    radial-gradient(circle 550px at calc(var(--mx, 40%) - 15%) calc(var(--my, 40%) + 25%),
      var(--g3) 0%, transparent 45%),
    var(--bg);
  filter: blur(70px) saturate(180%);
  opacity: 0.75;
}
.hero-vignette {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(ellipse at center, transparent 30%, rgba(7,7,14,0.55) 70%, rgba(7,7,14,0.92) 100%),
    linear-gradient(180deg, rgba(7,7,14,0.3) 0%, transparent 25%, transparent 65%, rgba(7,7,14,0.8) 100%);
  pointer-events: none;
}
.hero-grain {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0.04;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-repeat: repeat;
}
.hero-inner {
  position: relative;
  z-index: 3;
  max-width: 900px;
  width: 100%;
}
.hero-kicker {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7.5rem);
  font-weight: 700;
  line-height: 0.96;
  letter-spacing: -0.035em;
  color: var(--ink);
  margin-bottom: clamp(1.5rem, 3vw, 2rem);
  text-wrap: balance;
}
.hero-title em {
  color: var(--accent);
  font-style: normal;
  background: linear-gradient(135deg, var(--g1), var(--g3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--ink-soft);
  line-height: 1.6;
  margin-bottom: clamp(2rem, 4vw, 3rem);
  max-width: 46ch;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}
.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
  animation: heroScrollBounce 2s ease-in-out infinite;
}
@keyframes heroScrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ═══════════════════════════════════════════════════════
   STATS BAR
═══════════════════════════════════════════════════════ */
.stats-bar {
  padding: clamp(3rem, 6vw, 5rem) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-2);
}
.stats-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 2rem;
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
}
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.04em;
  line-height: 1;
}
.stat-icon {
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1;
  background: linear-gradient(135deg, var(--g1), var(--g3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  font-size: 0.82rem;
  color: var(--mute);
  font-weight: 400;
  letter-spacing: 0.04em;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--line);
  flex-shrink: 0;
}
@media (max-width: 600px) { .stat-divider { display: none; } }

/* ═══════════════════════════════════════════════════════
   BENEFICIOS
═══════════════════════════════════════════════════════ */
.beneficios {
  padding: clamp(5rem, 10vw, 9rem) 0;
}
.beneficios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
@media (max-width: 800px) {
  .beneficios-grid { grid-template-columns: 1fr; }
}
.beneficio {
  padding: clamp(2rem, 4vw, 3rem);
  background: var(--bg-card);
  position: relative;
  transition: background 0.3s;
}
.beneficio + .beneficio { border-left: 1px solid var(--line); }
@media (max-width: 800px) {
  .beneficio + .beneficio { border-left: none; border-top: 1px solid var(--line); }
}
.beneficio:hover { background: rgba(139, 92, 246, 0.05); }
.beneficio-num {
  display: block;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.beneficio-title {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 0.9rem;
}
.beneficio-desc {
  font-size: 0.93rem;
  color: var(--ink-soft);
  line-height: 1.7;
}

/* ═══════════════════════════════════════════════════════
   TEMARIO
═══════════════════════════════════════════════════════ */
.temario-section {
  padding: clamp(5rem, 10vw, 9rem) 0;
  background: var(--bg-2);
}
.temario-list {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.modulo {
  border-bottom: 1px solid var(--line);
}
.modulo:last-child { border-bottom: none; }
.modulo-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  width: 100%;
  padding: 1.5rem clamp(1.25rem, 3vw, 2rem);
  background: var(--bg-card);
  text-align: left;
  transition: background 0.2s;
}
.modulo-header:hover { background: rgba(139, 92, 246, 0.05); }
.modulo-header[aria-expanded="true"] { background: rgba(139, 92, 246, 0.06); }
.modulo-header[aria-expanded="true"] .modulo-icon { transform: rotate(45deg); color: var(--accent); }
.modulo-meta {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 60px;
  flex-shrink: 0;
}
.modulo-num {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.modulo-lecciones {
  font-size: 0.72rem;
  color: var(--mute);
  white-space: nowrap;
}
.modulo-titulo {
  flex: 1;
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.modulo-icon {
  font-size: 1.4rem;
  color: var(--mute);
  transition: transform 0.25s var(--ease-out), color 0.2s;
  flex-shrink: 0;
  line-height: 1;
}
.modulo-body {
  padding: 0 clamp(1.25rem, 3vw, 2rem) 1.75rem calc(60px + 1.25rem + clamp(1.25rem, 3vw, 2rem));
  background: var(--bg-card);
}
.modulo-body ul { display: flex; flex-direction: column; gap: 0.7rem; }
.modulo-body li {
  font-size: 0.9rem;
  color: var(--ink-soft);
  padding-left: 1.2rem;
  position: relative;
  line-height: 1.5;
}
.modulo-body li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.75rem;
  top: 0.15em;
}

/* ═══════════════════════════════════════════════════════
   INSTRUCTOR
═══════════════════════════════════════════════════════ */
.instructor {
  padding: clamp(5rem, 10vw, 9rem) 0;
  overflow: hidden;
}
.instructor-inner {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: start;
}
@media (max-width: 960px) {
  .instructor-inner { grid-template-columns: 1fr; }
}
.instructor-photo-wrap {
  position: relative;
}
.instructor-photo-bg {
  position: absolute;
  inset: -20% -30%;
  background: radial-gradient(ellipse at center, rgba(139,92,246,0.3), transparent 65%);
  filter: blur(60px);
  z-index: 0;
  pointer-events: none;
}
.instructor-photo {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  aspect-ratio: 4/5;
  object-fit: cover;
  object-position: top;
  border-radius: 24px;
  border: 1px solid var(--line);
  filter: saturate(0.85);
  transition: filter 0.3s;
}
.instructor-photo:hover { filter: saturate(1.05); }
@media (max-width: 960px) {
  .instructor-photo { max-width: 340px; aspect-ratio: 1/1; }
}
.instructor-name {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}
.instructor-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}
.instructor-tags li {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent-2);
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-radius: 100px;
  padding: 0.3rem 0.9rem;
  background: rgba(6, 182, 212, 0.06);
}
.instructor-bio {
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
  color: var(--ink-soft);
  line-height: 1.75;
  margin-bottom: 1.25rem;
  max-width: 54ch;
}
.instructor-cta { margin-top: 2rem; }

/* ═══════════════════════════════════════════════════════
   PRICING
═══════════════════════════════════════════════════════ */
.precio {
  padding: clamp(5rem, 10vw, 9rem) 0;
  background: var(--bg-2);
  position: relative;
  overflow: hidden;
}
.precio-gradient {
  position: absolute;
  inset: -20% 10%;
  background: radial-gradient(ellipse at 50% 30%, rgba(124,58,237,0.18), transparent 60%);
  filter: blur(80px);
  pointer-events: none;
}
.precio-card {
  position: relative;
  z-index: 1;
  max-width: 540px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid rgba(139,92,246,0.3);
  border-radius: 24px;
  padding: clamp(2.5rem, 5vw, 3.5rem);
  box-shadow: 0 0 80px rgba(124,58,237,0.12);
}
.precio-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-2);
  border: 1px solid rgba(6,182,212,0.3);
  background: rgba(6,182,212,0.08);
  border-radius: 100px;
  padding: 0.35rem 1rem;
  margin-bottom: 2rem;
  letter-spacing: 0.04em;
}
.precio-amount {
  display: flex;
  align-items: flex-start;
  gap: 0.25rem;
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ink);
  line-height: 1;
}
.precio-currency {
  font-size: 2rem;
  padding-top: 0.5rem;
}
.precio-value {
  font-size: clamp(3.5rem, 8vw, 5rem);
  letter-spacing: -0.04em;
}
.precio-periodo {
  font-size: 0.85rem;
  color: var(--mute);
  margin-bottom: 2rem;
}
.precio-features {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}
.precio-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.93rem;
  color: var(--ink-soft);
  line-height: 1.4;
}
.check {
  color: #4ade80;
  font-weight: 700;
  flex-shrink: 0;
  font-size: 1rem;
}
.precio-trust {
  margin-top: 1.25rem;
  font-size: 0.8rem;
  color: var(--mute);
  text-align: center;
  line-height: 1.5;
}
.precio-trust strong { color: var(--ink-soft); }

/* ═══════════════════════════════════════════════════════
   FAQ
═══════════════════════════════════════════════════════ */
.faq-section {
  padding: clamp(5rem, 10vw, 9rem) 0;
}
.faq-list {
  max-width: 740px;
  margin: 0 auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:last-child { border-bottom: none; }
.faq-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 1.4rem clamp(1.25rem, 3vw, 2rem);
  background: var(--bg-card);
  text-align: left;
  font-family: var(--font-display);
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--ink);
  transition: background 0.2s;
}
.faq-header:hover { background: rgba(139,92,246,0.04); }
.faq-header[aria-expanded="true"] { background: rgba(139,92,246,0.05); }
.faq-header[aria-expanded="true"] .faq-icon { transform: rotate(45deg); color: var(--accent); }
.faq-icon {
  font-size: 1.3rem;
  color: var(--mute);
  transition: transform 0.25s var(--ease-out), color 0.2s;
  flex-shrink: 0;
}
.faq-body {
  padding: 0 clamp(1.25rem, 3vw, 2rem) 1.5rem;
  background: var(--bg-card);
}
.faq-body p {
  font-size: 0.93rem;
  color: var(--ink-soft);
  line-height: 1.75;
}

/* ═══════════════════════════════════════════════════════
   FOOTER CTA
═══════════════════════════════════════════════════════ */
.footer-cta {
  padding: clamp(5rem, 10vw, 9rem) clamp(1.5rem, 5vw, 4rem);
  text-align: center;
  position: relative;
  overflow: hidden;
  background: var(--bg-2);
}
.footer-cta-gradient {
  position: absolute;
  inset: -30% 5%;
  background: radial-gradient(ellipse at 50% 60%, rgba(124,58,237,0.25), transparent 60%);
  filter: blur(80px);
  pointer-events: none;
}
.footer-cta-inner { position: relative; z-index: 1; }
.footer-cta-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 2.5rem;
  text-wrap: balance;
}
.footer-cta-title em { color: var(--accent); font-style: normal; }

/* ═══════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════ */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--line);
}
.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink-soft);
}
.footer-copy {
  font-size: 0.8rem;
  color: var(--mute);
}
.footer-link {
  font-size: 0.82rem;
  color: var(--accent);
  opacity: 0.75;
  transition: opacity 0.2s;
}
.footer-link:hover { opacity: 1; }

/* ═══════════════════════════════════════════════════════
   ACCORDION ANIMATION
═══════════════════════════════════════════════════════ */
.modulo-body,
.faq-body {
  overflow: hidden;
  transition: max-height 0.4s var(--ease-out), padding 0.3s var(--ease-out);
}

/* ═══════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════ */
@media (max-width: 640px) {
  .nav-logo-text { display: none; }
  .nav-cta { font-size: 0.8rem; padding: 0.55rem 1rem; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-actions .btn-primary,
  .hero-actions .btn-ghost { width: 100%; justify-content: center; }
  .stats-inner { gap: 1.5rem; }
  .stat-divider { display: none; }
  .modulo-body { padding-left: clamp(1.25rem, 3vw, 2rem); }
  .instructor-inner { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
}

/* ═══════════════════════════════════════════════════════
   MODAL DE COMPRA
═══════════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(7, 7, 14, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity 0.25s var(--ease-out);
}
.modal-overlay.is-open {
  opacity: 1;
}
.modal-overlay[hidden] { display: none; }

.modal-box {
  position: relative;
  background: var(--bg-card);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: 24px;
  padding: clamp(2rem, 5vw, 3rem);
  width: 100%;
  max-width: 480px;
  box-shadow: 0 0 80px rgba(124, 58, 237, 0.18);
  transform: translateY(16px);
  transition: transform 0.3s var(--ease-out);
}
.modal-overlay.is-open .modal-box {
  transform: none;
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--line);
  color: var(--mute);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, color 0.2s;
}
.modal-close:hover { background: rgba(139,92,246,0.15); color: var(--ink); }

.modal-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-2);
  border: 1px solid rgba(6,182,212,0.3);
  background: rgba(6,182,212,0.07);
  border-radius: 100px;
  padding: 0.3rem 0.9rem;
  margin-bottom: 1.25rem;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.modal-sub {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

.modal-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.1rem;
}
.modal-field label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-soft);
}
.modal-field input {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 0.97rem;
  color: var(--ink);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}
.modal-field input::placeholder { color: var(--mute); }
.modal-field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(139,92,246,0.12);
}
.modal-hint {
  font-size: 0.76rem;
  color: var(--mute);
}

.modal-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.88rem;
  margin-bottom: 1rem;
}
.modal-error[hidden] { display: none; }

.modal-spinner {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.modal-spinner[hidden] { display: none; }

@keyframes spin { to { transform: rotate(360deg); } }

.modal-trust {
  margin-top: 1rem;
  font-size: 0.78rem;
  color: var(--mute);
  text-align: center;
  line-height: 1.5;
}

/* Redirect state */
.modal-loading {
  text-align: center;
  padding: 2rem 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}
.modal-loading p { margin-top: 1rem; }
.modal-spinner-big {
  width: 48px; height: 48px;
  border: 3px solid var(--line);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
  margin: 0 auto;
}

/* Pago OK banner */
.pago-ok-banner {
  position: fixed;
  top: calc(var(--nav-h) + 1rem);
  left: 50%;
  transform: translateX(-50%);
  z-index: 950;
  width: calc(100% - 3rem);
  max-width: 600px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  border-radius: 14px;
  padding: 1rem 1.25rem;
  backdrop-filter: blur(16px);
  animation: slideDown 0.4s var(--ease-out) forwards;
}
.pago-ok-banner[hidden] { display: none; }
@keyframes slideDown {
  from { opacity: 0; transform: translateX(-50%) translateY(-12px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}
.pago-ok-inner {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.pago-ok-icon {
  font-size: 1.3rem;
  color: #4ade80;
  flex-shrink: 0;
  line-height: 1.5;
}
.pago-ok-inner strong {
  display: block;
  color: #4ade80;
  font-family: var(--font-display);
  font-size: 0.97rem;
  margin-bottom: 0.2rem;
}
.pago-ok-inner p {
  font-size: 0.85rem;
  color: rgba(74, 222, 128, 0.8);
  line-height: 1.5;
}
.pago-ok-close {
  margin-left: auto;
  color: rgba(74, 222, 128, 0.6);
  font-size: 1rem;
  flex-shrink: 0;
  transition: color 0.2s;
}
.pago-ok-close:hover { color: #4ade80; }