/* ==========================================================================
   SOLUCIONES INTELIGENCIA ARTIFICIAL — LANDING PAGE
   CSS ORGANIZADO: variables, reset, utilidades, componentes, secciones, media queries
   ========================================================================== */

/* ---------- 1. VARIABLES ---------- */
:root {
  --color-orange: #FF5900;
  --color-orange-light: #FF7A1A;
  --color-orange-dark: #E64A00;
  --color-orange-soft: #FFF1E8;
  --color-black: #0A0A0A;
  --color-black-soft: #171717;
  --color-black-softer: #232323;
  --color-white: #FFFFFF;
  --color-gray-50: #FAFAFA;
  --color-gray-100: #F5F5F7;
  --color-gray-200: #E8E8EA;
  --color-gray-400: #A0A0A6;
  --color-gray-600: #6B6B70;
  --color-gray-800: #2E2E31;
  --color-green: #22C55E;
  --color-green-dark: #16A34A;

  --font-display: 'Poppins', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Inter', 'Segoe UI', Arial, sans-serif;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 999px;

  --shadow-sm: 0 2px 8px rgba(10,10,10,0.06);
  --shadow-md: 0 8px 24px rgba(10,10,10,0.08);
  --shadow-lg: 0 20px 50px rgba(10,10,10,0.12);
  --shadow-orange: 0 14px 34px rgba(255,89,0,0.28);
  --shadow-orange-lg: 0 22px 55px rgba(255,89,0,0.35);

  --transition-fast: 0.2s cubic-bezier(.4,0,.2,1);
  --transition-med: 0.4s cubic-bezier(.4,0,.2,1);
  --transition-slow: 0.7s cubic-bezier(.16,1,.3,1);

  --header-h: 78px;
  --topbar-h: 44px;
  --container-w: 1200px;
}

/* ---------- 2. RESET ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-body);
  color: var(--color-black);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  padding-top: calc(var(--header-h) + var(--topbar-h));
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.2; color: var(--color-black); }
p { color: var(--color-gray-600); }
strong { color: var(--color-black); font-weight: 700; }
svg { display: block; }

.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-orange);
  color: var(--color-white);
  padding: 12px 20px;
  z-index: 10000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- 3. UTILIDADES ---------- */
.accent { color: var(--color-orange); }
.accent-text { color: var(--color-orange); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-orange);
  background: var(--color-orange-soft);
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  margin-bottom: 18px;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}
.section-header h2 {
  font-size: clamp(30px, 4.5vw, 46px);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.section-header p { font-size: 18px; color: var(--color-gray-600); }
.section-header.light h2, .section-header.light p { color: var(--color-white); }
.section-header.light .eyebrow { background: rgba(255,255,255,0.1); color: var(--color-orange-light); }
.section-header.light p { color: rgba(255,255,255,0.7); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  margin-bottom: 24px;
}
.badge-live {
  background: rgba(255,89,0,0.1);
  color: var(--color-orange-dark);
  border: 1px solid rgba(255,89,0,0.25);
}
.dot-pulse {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--color-orange);
  position: relative;
}
.dot-pulse::after {
  content: '';
  position: absolute; inset: -6px;
  border-radius: 50%;
  border: 2px solid var(--color-orange);
  animation: pulse-ring 1.8s ease-out infinite;
}
@keyframes pulse-ring {
  0% { transform: scale(0.6); opacity: 1; }
  100% { transform: scale(1.8); opacity: 0; }
}

.mini-icon { width: 18px; height: 18px; flex-shrink: 0; color: var(--color-orange); }

/* ---------- 4. BOTONES ---------- */
.btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  text-align: center;
  border-radius: var(--radius-pill);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
  letter-spacing: 0.3px;
}
.btn-icon { width: 20px; height: 20px; flex-shrink: 0; }
.btn-sm { padding: 12px 24px; font-size: 14px; }
.btn-md { padding: 15px 30px; font-size: 15px; }
.btn-lg { padding: 19px 38px; font-size: 16px; }
.btn-xl { padding: 22px 46px; font-size: 18px; }

.btn-primary {
  background: linear-gradient(135deg, var(--color-orange-light), var(--color-orange));
  color: var(--color-white);
  box-shadow: var(--shadow-orange);
}
.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-orange-lg);
}
.btn-primary:active { transform: translateY(-1px) scale(0.99); }

.btn-secondary {
  background: var(--color-white);
  color: var(--color-green-dark);
  border: 2px solid var(--color-green);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover {
  background: var(--color-green);
  color: var(--color-white);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 14px 34px rgba(34,197,94,0.28);
}

.ripple-span {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.55);
  transform: scale(0);
  animation: ripple-anim 0.6s linear;
  pointer-events: none;
}
@keyframes ripple-anim {
  to { transform: scale(2.6); opacity: 0; }
}

/* ---------- 5. BARRA SUPERIOR FIJA ---------- */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  background: var(--color-black);
  color: var(--color-white);
  z-index: 1001;
  display: flex;
  align-items: center;
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
}
.topbar-text { font-size: 13px; color: var(--color-gray-200); }
.topbar-text strong { color: var(--color-orange-light); }
.topbar-timer {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-gray-200);
  flex-shrink: 0;
}
.timer {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--color-orange-light);
  background: rgba(255,89,0,0.15);
  padding: 3px 10px;
  border-radius: 6px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 1px;
}
.timer-lg { font-size: 28px; padding: 8px 20px; border-radius: 10px; }

/* ---------- 6. HEADER ---------- */
.header {
  position: fixed;
  top: var(--topbar-h);
  left: 0; right: 0;
  height: var(--header-h);
  z-index: 1000;
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid rgba(10,10,10,0.06);
  transition: box-shadow var(--transition-med);
}
.header.scrolled { box-shadow: var(--shadow-md); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
}
.logo-link { display: flex; align-items: center; flex-shrink: 0; }
.logo-img { height: 40px; width: auto; }

.nav { display: flex; align-items: center; gap: 32px; }
.nav-link {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-black);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition-fast);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--color-orange);
  transition: width var(--transition-fast);
}
.nav-link:hover { color: var(--color-orange); }
.nav-link:hover::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 16px; }
.header-cta { padding: 13px 26px; font-size: 14px; }

.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  border-radius: 10px;
}
.mobile-toggle span {
  width: 22px; height: 2px;
  background: var(--color-black);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  margin: 0 auto;
}
.mobile-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  top: calc(var(--header-h) + var(--topbar-h));
  left: 0; right: 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  flex-direction: column;
  padding: 12px 24px 28px;
  gap: 4px;
  transform: translateY(-12px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-med);
  z-index: 999;
  box-shadow: var(--shadow-lg);
}
.mobile-menu.open { transform: translateY(0); opacity: 1; visibility: visible; }
.mobile-link {
  padding: 14px 4px;
  font-weight: 600;
  font-size: 16px;
  border-bottom: 1px solid var(--color-gray-100);
}
.mobile-menu .btn { margin-top: 16px; }

/* ---------- 7. HERO ---------- */
.hero {
  position: relative;
  padding: 72px 0 90px;
  overflow: hidden;
  background: var(--color-white);
}
.hero-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.hero-grid {
  position: absolute; inset: -10% -10%;
  background-image:
    linear-gradient(rgba(10,10,10,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10,10,10,0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 60% 20%, black 10%, transparent 65%);
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
}
.hero-glow-1 { width: 460px; height: 460px; background: var(--color-orange); top: -180px; right: -100px; }
.hero-glow-2 { width: 360px; height: 360px; background: var(--color-green); bottom: -160px; left: -120px; opacity: 0.15; }

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}
.hero-title {
  font-size: clamp(36px, 5.2vw, 62px);
  letter-spacing: -1.2px;
  margin-bottom: 24px;
}
.hero-subtitle {
  font-size: clamp(17px, 2vw, 20px);
  color: var(--color-gray-600);
  max-width: 560px;
  margin-bottom: 36px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 32px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 24px; }
.hero-trust-item {
  display: flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600; color: var(--color-gray-800);
}

.hero-visual { position: relative; display: flex; justify-content: center; align-items: center; }
.hero-mockup {
  width: 100%;
  max-width: 420px;
  filter: drop-shadow(0 30px 60px rgba(10,10,10,0.25));
  animation: float-mockup 6s ease-in-out infinite;
}
@keyframes float-mockup {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.75);
  backdrop-filter: blur(14px) saturate(180%);
  -webkit-backdrop-filter: blur(14px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.5);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-black);
  animation: float-card 5s ease-in-out infinite;
}
.floating-card-1 { top: 8%; left: -6%; animation-delay: 0.2s; }
.floating-card-2 { bottom: 20%; right: -8%; flex-direction: column; align-items: flex-start; gap: 2px; animation-delay: 1s; }
.floating-card-2 strong { font-size: 20px; }
.floating-card-2 .stars { color: var(--color-orange); font-size: 14px; letter-spacing: 1px; }
.floating-card-3 { bottom: -4%; left: 8%; flex-direction: column; align-items: flex-start; gap: 0; animation-delay: 2s; }
.floating-number { font-size: 22px; font-weight: 800; color: var(--color-orange); font-family: var(--font-display); }
@keyframes float-card {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---------- 8. STATS ---------- */
.stats { padding: 60px 0; background: var(--color-gray-100); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-card { display: flex; flex-direction: column; gap: 6px; }
.stat-number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 4vw, 48px);
  color: var(--color-orange);
  letter-spacing: -1px;
}
.stat-label { font-size: 15px; font-weight: 600; color: var(--color-gray-800); }

/* ---------- 9. SECCIONES GENERALES ---------- */
section { padding: 96px 0; }

/* WHY DIFFERENT */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.why-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: transform var(--transition-med), box-shadow var(--transition-med), border-color var(--transition-med);
}
.why-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.why-icon {
  width: 60px; height: 60px;
  border-radius: var(--radius-md);
  background: var(--color-orange-soft);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-orange);
  margin-bottom: 22px;
}
.card-icon-svg { width: 28px; height: 28px; }
.why-card h3 { font-size: 20px; margin-bottom: 10px; }
.why-card p { font-size: 15px; }

/* CTA BANNER */
.cta-banner {
  padding: 44px 0;
  background: var(--color-black);
}
.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-banner-text h3 { color: var(--color-white); font-size: 24px; margin-bottom: 6px; }
.cta-banner-text p { color: var(--color-gray-400); font-size: 15px; }

/* CURRICULUM */
.curriculum { background: var(--color-white); }
.curric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.curric-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  padding: 22px;
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.curric-card:hover { background: var(--color-orange-soft); transform: translateY(-4px); }
.curric-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--color-white);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-orange);
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}
.curric-icon svg { width: 22px; height: 22px; }
.curric-text h4 { font-size: 16px; margin-bottom: 4px; }
.curric-text p { font-size: 13.5px; }

/* BONUSES */
.bonuses { background: var(--color-black); }
.bonus-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.bonus-card {
  position: relative;
  background: var(--color-black-soft);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  transition: transform var(--transition-med), border-color var(--transition-med);
}
.bonus-card:hover { transform: translateY(-6px); border-color: var(--color-orange); }
.bonus-ribbon {
  position: absolute;
  top: 20px; right: -8px;
  background: linear-gradient(135deg, var(--color-orange-light), var(--color-orange));
  color: var(--color-white);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.5px;
  padding: 6px 14px 6px 18px;
  border-radius: 6px 0 0 6px;
  box-shadow: var(--shadow-sm);
}
.bonus-num { font-size: 13px; font-weight: 700; color: var(--color-orange-light); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 10px; }
.bonus-card h3 { color: var(--color-white); font-size: 20px; margin-bottom: 10px; }
.bonus-card p { color: var(--color-gray-400); font-size: 14.5px; margin-bottom: 20px; }
.bonus-price { display: flex; align-items: center; gap: 12px; }
.price-old { text-decoration: line-through; color: var(--color-gray-400); font-size: 15px; }
.price-new { color: var(--color-green); font-weight: 800; font-size: 15px; }
.bonus-total {
  text-align: center;
  margin-top: 56px;
  padding-top: 48px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.bonus-total p { color: var(--color-white); font-size: 20px; margin-bottom: 8px; }
.bonus-total-free { font-size: 26px !important; font-weight: 800; margin-bottom: 28px !important; }
.bonus-total .btn { margin-top: 8px; }

/* COMPARE */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: stretch;
}
.compare-col {
  border-radius: var(--radius-lg);
  padding: 36px 32px;
}
.compare-before { background: var(--color-gray-100); border: 1px solid var(--color-gray-200); }
.compare-after { background: linear-gradient(160deg, #FFF4EC, #FFFFFF); border: 1px solid var(--color-orange-soft); }
.compare-col h3 { font-size: 22px; margin-bottom: 22px; }
.compare-before h3 { color: var(--color-gray-800); }
.compare-after h3 { color: var(--color-orange); }
.compare-col ul { display: flex; flex-direction: column; gap: 16px; }
.compare-col li { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; font-weight: 500; }
.compare-before li { color: var(--color-gray-600); }
.compare-before .mini-icon { color: #D64545; }
.compare-after li { color: var(--color-gray-800); }
.compare-after .mini-icon { color: var(--color-green-dark); }
.compare-arrow { display: flex; align-items: center; justify-content: center; color: var(--color-orange); width: 40px; }
.compare-arrow svg { width: 32px; height: 32px; }

/* TESTIMONIALS */
.testimonials { background: var(--color-gray-100); overflow: hidden; }
.testimonial-slider { display: flex; align-items: center; gap: 12px; max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
.testimonial-track-wrap { overflow: hidden; flex: 1; }
.testimonial-track { display: flex; gap: 24px; transition: transform var(--transition-slow); }
.testimonial-card {
  flex: 0 0 calc(33.333% - 16px);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.testimonial-stars { color: var(--color-orange); letter-spacing: 2px; font-size: 16px; }
.testimonial-quote { font-size: 15px; color: var(--color-gray-800); flex: 1; font-style: italic; }
.testimonial-person { display: flex; align-items: center; gap: 12px; }
.avatar {
  width: 46px; height: 46px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-white);
  font-weight: 800;
  font-family: var(--font-display);
  font-size: 15px;
  flex-shrink: 0;
}
.testimonial-meta { display: flex; flex-direction: column; gap: 1px; }
.testimonial-meta strong { font-size: 14.5px; }
.testimonial-meta span { font-size: 12.5px; color: var(--color-gray-600); }
.testimonial-grade { color: var(--color-orange) !important; font-weight: 700; }
.slider-arrow {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--color-white);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  flex-shrink: 0;
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.slider-arrow:hover { background: var(--color-orange); color: var(--color-white); transform: scale(1.08); }
.slider-arrow svg { width: 20px; height: 20px; }
.slider-dots { display: flex; justify-content: center; gap: 8px; margin-top: 32px; }
.slider-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--color-gray-200);
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.slider-dot.active { background: var(--color-orange); transform: scale(1.3); }

/* PAYMENT METHODS */
.payment-methods { background: var(--color-white); }
.payment-card {
  max-width: 560px;
  margin: 0 auto;
  border: 2px dashed var(--color-orange);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  background: linear-gradient(180deg, #FFFBF8, #FFFFFF);
}
.payment-label { font-size: 13px; font-weight: 800; letter-spacing: 1px; color: var(--color-gray-600); margin-bottom: 14px; }
.payment-apps { font-size: 19px; font-weight: 800; color: var(--color-black); margin-bottom: 18px; }
.payment-number {
  font-family: var(--font-display);
  font-size: clamp(30px, 5vw, 40px);
  font-weight: 800;
  color: var(--color-orange);
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.payment-note { font-size: 14px; color: var(--color-gray-600); margin-bottom: 26px; }

/* INCLUDED */
.included-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: start;
}
.device-frame {
  background: var(--color-black);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.device-bar { display: flex; gap: 6px; padding: 14px 18px; background: var(--color-black-softer); }
.device-bar span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.2); }
.device-bar span:nth-child(1) { background: #FF5F57; }
.device-bar span:nth-child(2) { background: #FEBC2E; }
.device-bar span:nth-child(3) { background: #28C840; }
.device-content { padding: 24px 22px 30px; min-height: 380px; }
.device-content h4 { color: var(--color-white); font-size: 16px; margin-bottom: 18px; }
.index-list { display: flex; flex-direction: column; gap: 13px; }
.index-list li { display: flex; align-items: center; gap: 12px; font-size: 13.5px; color: var(--color-gray-400); }
.line-num { font-family: var(--font-display); font-weight: 700; color: var(--color-orange); font-size: 12px; width: 22px; }
.checklist-list { display: flex; flex-direction: column; gap: 15px; }
.checklist-list li { display: flex; align-items: center; gap: 12px; font-size: 13.5px; color: var(--color-gray-400); }
.check-box {
  width: 18px; height: 18px; flex-shrink: 0;
  border: 2px solid var(--color-orange);
  border-radius: 5px;
  position: relative;
  background: rgba(255,89,0,0.12);
}
.check-box::after {
  content: '';
  position: absolute;
  left: 4px; top: 1px;
  width: 5px; height: 9px;
  border: solid var(--color-orange);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.chat-bubble {
  padding: 14px 16px;
  border-radius: 14px;
  font-size: 13px;
  margin-bottom: 14px;
  max-width: 92%;
  line-height: 1.5;
}
.chat-user { background: var(--color-black-softer); color: var(--color-gray-200); border-bottom-left-radius: 4px; }
.chat-ai { background: linear-gradient(135deg, var(--color-orange-light), var(--color-orange)); color: var(--color-white); margin-left: auto; border-bottom-right-radius: 4px; font-weight: 500; }

/* PERSUASION */
.persuasion { background: var(--color-gray-100); }
.persuasion-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.persuasion-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-med), box-shadow var(--transition-med);
}
.persuasion-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.persuasion-icon {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--color-black);
  color: var(--color-orange-light);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
}
.persuasion-icon svg { width: 26px; height: 26px; }
.persuasion-card h3 { font-size: 19px; margin-bottom: 8px; }
.persuasion-card p { font-size: 14.5px; }

/* GUARANTEE */
.guarantee { background: var(--color-white); }
.guarantee-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 56px;
  align-items: center;
  background: var(--color-black);
  border-radius: var(--radius-xl);
  padding: 64px;
}
.guarantee-icon {
  width: 140px; height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-orange-light), var(--color-orange));
  display: flex; align-items: center; justify-content: center;
  color: var(--color-white);
  box-shadow: var(--shadow-orange-lg);
  flex-shrink: 0;
}
.guarantee-icon svg { width: 68px; height: 68px; }
.guarantee-text h2 { color: var(--color-white); margin-bottom: 16px; font-size: clamp(26px, 3.4vw, 36px); }
.guarantee-text p { color: var(--color-gray-400); margin-bottom: 28px; font-size: 16px; max-width: 560px; }
.guarantee-badges { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 28px; margin-bottom: 32px; max-width: 560px; }
.guarantee-badge { display: flex; align-items: center; gap: 10px; color: var(--color-gray-200); font-size: 14.5px; font-weight: 600; }

/* FAQ */
.faq { background: var(--color-gray-100); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 26px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  text-align: left;
  color: var(--color-black);
}
.faq-chevron { width: 20px; height: 20px; color: var(--color-orange); flex-shrink: 0; transition: transform var(--transition-med); }
.faq-question[aria-expanded="true"] .faq-chevron { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-med), padding var(--transition-med);
  padding: 0 26px;
}
.faq-answer p { font-size: 14.5px; padding-bottom: 0; }
.faq-item.open .faq-answer { padding: 0 26px 24px; }

/* FINAL CTA */
.final-cta {
  position: relative;
  background: var(--color-black);
  overflow: hidden;
  text-align: center;
}
.final-cta-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(255,89,0,0.25), transparent 55%),
    radial-gradient(ellipse at 80% 80%, rgba(255,89,0,0.18), transparent 55%);
}
.final-cta-inner { position: relative; z-index: 1; max-width: 780px; margin: 0 auto; }
.final-cta h2 { color: var(--color-white); font-size: clamp(30px, 5vw, 50px); margin-bottom: 22px; letter-spacing: -1px; }
.final-cta p { color: var(--color-gray-400); font-size: 18px; margin-bottom: 36px; }
.final-cta-timer { display: flex; flex-direction: column; align-items: center; gap: 8px; margin-bottom: 36px; color: var(--color-gray-400); font-size: 14px; }
.final-cta-note { margin-top: 24px; font-size: 13.5px; color: var(--color-gray-400); }

/* FOOTER */
.footer { background: var(--color-black-soft); padding-top: 72px; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo { height: 38px; margin-bottom: 18px; }
.footer-brand p { color: var(--color-gray-400); font-size: 14px; max-width: 320px; margin-bottom: 22px; }
.footer-socials { display: flex; gap: 12px; }
.footer-icon-link {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-gray-200);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.footer-icon-link svg { width: 18px; height: 18px; }
.footer-icon-link:hover { background: var(--color-orange); color: var(--color-white); }
.footer-col h4 { color: var(--color-white); font-size: 15px; margin-bottom: 20px; }
.footer-col a { display: block; color: var(--color-gray-400); font-size: 14px; margin-bottom: 13px; transition: color var(--transition-fast); }
.footer-col a:hover { color: var(--color-orange-light); }
.footer-bottom { padding: 26px 0; }
.footer-bottom p { color: var(--color-gray-600); font-size: 13px; text-align: center; }

/* ---------- 10. ANIMACIONES REVEAL ---------- */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 0.8s cubic-bezier(.16,1,.3,1), transform 0.8s cubic-bezier(.16,1,.3,1); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-left { transform: translateX(-48px); }
.reveal-left.is-visible { transform: translateX(0); }
.reveal-right { transform: translateX(48px); }
.reveal-right.is-visible { transform: translateX(0); }
.reveal-scale { transform: scale(0.88); }
.reveal-scale.is-visible { transform: scale(1); }

/* ---------- 11. RESPONSIVE ---------- */
@media (max-width: 1080px) {
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .curric-grid { grid-template-columns: repeat(2, 1fr); }
  .bonus-grid { grid-template-columns: repeat(2, 1fr); }
  .persuasion-grid { grid-template-columns: repeat(2, 1fr); }
  .included-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .testimonial-card { flex: 0 0 calc(50% - 12px); }
  .guarantee-inner { grid-template-columns: 1fr; text-align: center; padding: 48px 32px; }
  .guarantee-icon { margin: 0 auto; }
  .guarantee-badges { margin-left: auto; margin-right: auto; }
  .guarantee-text p { margin-left: auto; margin-right: auto; }
}

@media (max-width: 900px) {
  :root { --header-h: 68px; }
  .nav { display: none; }
  .mobile-toggle { display: flex; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-actions { justify-content: center; }
  .hero-trust { justify-content: center; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-visual { margin-top: 40px; order: -1; }
  .hero-mockup { max-width: 300px; }
  .floating-card { display: none; }
  .compare-grid { grid-template-columns: 1fr; }
  .compare-arrow { transform: rotate(90deg); margin: 0 auto; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; }
  .topbar-text { display: none; }
  .topbar-inner { justify-content: center; }
}

@media (max-width: 640px) {
  section { padding: 64px 0; }
  .container { padding: 0 18px; }
  .header-cta { display: none; }
  .why-grid, .curric-grid, .bonus-grid, .persuasion-grid { grid-template-columns: 1fr; }
  .testimonial-card { flex: 0 0 100%; }
  .cta-banner-inner { flex-direction: column; text-align: center; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .hero-title { font-size: 32px; }
  .btn-xl { padding: 18px 32px; font-size: 15px; width: 100%; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .guarantee-badges { grid-template-columns: 1fr; }
  .final_cta .btn { width: 100%; }
}

@media (max-width: 420px) {
  .payment-card { padding: 28px 20px; }
  .payment-number { font-size: 28px; }
}