/* ═══════════════════════════════════════════════════════════════════════════
   SkillPro Academy — Main Stylesheet
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── 1. Design Tokens ─────────────────────────────────────────────────────── */
:root {
  /* Brand */
  --c-primary:       #6366f1;   /* Indigo */
  --c-primary-dark:  #4338ca;
  --c-primary-light: #818cf8;
  --c-violet:        #8b5cf6;
  --c-accent:        #10b981;   /* Emerald — success / badges */
  --c-yellow:        #f59e0b;   /* Stars */
  --c-whatsapp:      #25d366;
  --c-whatsapp-hover:#1da851;

  /* Category colors */
  --c-marketing:     #ec4899;
  --c-diseno:        #8b5cf6;
  --c-finanzas:      #10b981;
  --c-tecnologia:    #6366f1;
  --c-emprendimiento:#f59e0b;

  /* Neutrals */
  --c-dark:     #0f172a;
  --c-text:     #1e293b;
  --c-muted:    #64748b;
  --c-light:    #94a3b8;
  --c-border:   #e2e8f0;
  --c-bg:       #f8fafc;
  --c-bg-alt:   #f1f5f9;
  --c-surface:  #ffffff;
  --c-white:    #ffffff;

  /* Typography */
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-md:   1.125rem;
  --text-lg:   1.25rem;
  --text-xl:   1.5rem;
  --text-2xl:  2rem;
  --text-3xl:  2.625rem;
  --text-4xl:  3.25rem;
  --fw-normal:  400;
  --fw-medium:  500;
  --fw-semibold:600;
  --fw-bold:    700;
  --fw-black:   900;

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

  /* Layout */
  --max-w:  1180px;
  --pad-x:  var(--sp-6);

  /* Borders / Shadows */
  --r-sm:   6px;   --r-md:   12px;  --r-lg:   20px;
  --r-xl:   28px;  --r-full: 9999px;
  --shadow-sm:   0 1px 3px rgba(15,23,42,.06);
  --shadow-md:   0 4px 16px rgba(15,23,42,.09);
  --shadow-lg:   0 10px 36px rgba(15,23,42,.12);
  --shadow-card: 0 1px 4px rgba(99,102,241,.06), 0 8px 24px rgba(99,102,241,.08);
  --shadow-glow: 0 0 40px rgba(99,102,241,.2);

  /* Transitions */
  --t-fast: 150ms ease;
  --t-base: 240ms ease;
  --t-slow: 380ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: var(--text-base);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
ul, ol { list-style: none; }
h1,h2,h3,h4 { font-weight: var(--fw-bold); line-height: 1.2; }

:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

/* ── 3. Utilities ─────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: .11em;
  color: var(--c-primary);
  padding: var(--sp-1) var(--sp-3);
  background: rgba(99,102,241,.1);
  border-radius: var(--r-full);
  margin-bottom: var(--sp-4);
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: var(--fw-black);
  color: var(--c-dark);
  letter-spacing: -.025em;
  margin-bottom: var(--sp-4);
}

.section-subtitle {
  font-size: var(--text-md);
  color: var(--c-muted);
  max-width: 560px;
  line-height: 1.75;
}

.section-header {
  text-align: center;
  margin-bottom: var(--sp-12);
}

.section-header .section-subtitle { margin-inline: auto; }

/* ── 4. Reveal Animations ─────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}
.reveal.visible { opacity: 1; transform: none; }

.reveal-delay-1 { transition-delay: 70ms; }
.reveal-delay-2 { transition-delay: 140ms; }
.reveal-delay-3 { transition-delay: 210ms; }
.reveal-delay-4 { transition-delay: 280ms; }
.reveal-delay-5 { transition-delay: 350ms; }
.reveal-delay-6 { transition-delay: 420ms; }

/* ── 5. Buttons ───────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-6);
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  border-radius: var(--r-full);
  white-space: nowrap;
  line-height: 1;
  transition: background var(--t-fast), transform var(--t-fast),
              box-shadow var(--t-fast), border-color var(--t-fast);
}
.btn:hover  { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-violet) 100%);
  color: white;
  box-shadow: 0 2px 12px rgba(99,102,241,.35);
}
.btn--primary:hover {
  box-shadow: 0 4px 20px rgba(99,102,241,.50);
}

.btn--outline {
  background: transparent;
  color: var(--c-primary);
  border: 2px solid var(--c-primary);
}
.btn--outline:hover {
  background: rgba(99,102,241,.06);
}

.btn--outline-white {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,.5);
}
.btn--outline-white:hover {
  background: rgba(255,255,255,.1);
  border-color: white;
}

.btn--whatsapp {
  background: var(--c-whatsapp);
  color: white;
}
.btn--whatsapp:hover {
  background: var(--c-whatsapp-hover);
  box-shadow: 0 4px 14px rgba(37,211,102,.38);
}

.btn--dark {
  background: var(--c-dark);
  color: white;
}
.btn--dark:hover {
  background: #1e293b;
  box-shadow: 0 4px 14px rgba(15,23,42,.3);
}

.btn--lg { padding: var(--sp-4) var(--sp-8); font-size: var(--text-md); }
.btn--sm { padding: var(--sp-2) var(--sp-4); font-size: var(--text-sm); border-radius: var(--r-full); }

/* ── 6. Header ────────────────────────────────────────────────────────────── */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-base), box-shadow var(--t-base);
}

.header--scrolled {
  border-color: var(--c-border);
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: var(--sp-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
}

.logo__icon {
  width: 38px;
  height: 38px;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-violet) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: var(--fw-black);
  color: white;
  letter-spacing: -.04em;
  box-shadow: 0 2px 8px rgba(99,102,241,.35);
}

.logo__name {
  font-size: var(--text-md);
  font-weight: var(--fw-black);
  color: var(--c-dark);
  letter-spacing: -.025em;
}

.logo__name span { color: var(--c-primary); }

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}

.main-nav a {
  font-size: var(--text-sm);
  font-weight: var(--fw-medium);
  color: var(--c-muted);
  transition: color var(--t-fast);
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 2px;
  background: var(--c-primary);
  border-radius: var(--r-full);
  transform: scaleX(0);
  transition: transform var(--t-fast);
  transform-origin: left;
}

.main-nav a:hover { color: var(--c-dark); }
.main-nav a:hover::after { transform: scaleX(1); }

.header__actions { display: flex; align-items: center; gap: var(--sp-3); }

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: var(--r-md);
  color: var(--c-dark);
  transition: background var(--t-fast);
}
.menu-toggle:hover { background: var(--c-bg-alt); }

/* ── 7. Hero ──────────────────────────────────────────────────────────────── */
#hero {
  background: linear-gradient(135deg, #0c0a1e 0%, #1a1040 40%, #2e1d6b 75%, #1d4370 100%);
  padding: var(--sp-24) 0 var(--sp-20);
  overflow: hidden;
  position: relative;
}

/* Ambient glow blobs */
#hero::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,.18) 0%, transparent 65%);
  top: -150px; left: -100px;
  pointer-events: none;
}

#hero::after {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139,92,246,.14) 0%, transparent 65%);
  bottom: -100px; right: 5%;
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--sp-12);
  align-items: center;
  position: relative;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  background: rgba(99,102,241,.18);
  border: 1px solid rgba(99,102,241,.35);
  color: var(--c-primary-light);
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: .1em;
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r-full);
  margin-bottom: var(--sp-5);
}

.hero__title {
  font-size: var(--text-4xl);
  font-weight: var(--fw-black);
  color: white;
  line-height: 1.08;
  letter-spacing: -.03em;
  margin-bottom: var(--sp-5);
}

.hero__title em {
  font-style: normal;
  background: linear-gradient(135deg, #a5b4fc 0%, #c4b5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: var(--text-md);
  color: rgba(255,255,255,.68);
  line-height: 1.78;
  max-width: 500px;
  margin-bottom: var(--sp-8);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-bottom: var(--sp-10);
}

/* Hero social proof */
.hero__proof {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  padding-top: var(--sp-8);
  border-top: 1px solid rgba(255,255,255,.1);
  flex-wrap: wrap;
}

.proof-avatars {
  display: flex;
}

.proof-avatar {
  width: 32px; height: 32px;
  border-radius: var(--r-full);
  border: 2px solid #1a1040;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: var(--fw-bold);
  color: white;
  margin-left: -8px;
}

.proof-avatar:first-child { margin-left: 0; }

.proof-text strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--fw-bold);
  color: white;
}

.proof-text span {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.5);
}

.proof-divider {
  width: 1px;
  height: 32px;
  background: rgba(255,255,255,.12);
}

.proof-stat strong {
  display: block;
  font-size: var(--text-md);
  font-weight: var(--fw-black);
  color: white;
}

.proof-stat span {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.5);
}

/* Hero dashboard (desktop) */
.hero-dashboard {
  background: rgba(255,255,255,.06);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--r-xl);
  padding: var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.dashboard-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dashboard-title {
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  color: white;
}

.dashboard-badge {
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  background: rgba(16,185,129,.2);
  color: #6ee7b7;
  padding: 2px var(--sp-2);
  border-radius: var(--r-full);
}

.dashboard-week {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.45);
  margin-top: -var(--sp-2);
}

.dashboard-progress-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.dp-row { display: flex; flex-direction: column; gap: 4px; }

.dp-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dp-label {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.7);
}

.dp-pct {
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  color: rgba(255,255,255,.9);
}

.dp-bar-bg {
  height: 6px;
  border-radius: var(--r-full);
  background: rgba(255,255,255,.1);
  overflow: hidden;
}

.dp-bar-fill {
  height: 100%;
  border-radius: var(--r-full);
  background: linear-gradient(90deg, var(--c-primary), var(--c-violet));
}

.dashboard-divider {
  height: 1px;
  background: rgba(255,255,255,.08);
}

.dashboard-chips {
  display: flex;
  gap: var(--sp-2);
  flex-wrap: wrap;
}

.d-chip {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px var(--sp-3);
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--r-full);
  font-size: var(--text-xs);
  color: rgba(255,255,255,.7);
}

/* ── 8. Brand bar ─────────────────────────────────────────────────────────── */
#brands {
  padding: var(--sp-6) 0;
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
}

.brands-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-10);
  flex-wrap: wrap;
}

.brand-label {
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--c-light);
  flex-shrink: 0;
}

.brand-item {
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  color: var(--c-light);
  opacity: .7;
  transition: opacity var(--t-fast);
}

/* ── 9. Courses ───────────────────────────────────────────────────────────── */
#cursos {
  padding: var(--sp-24) 0;
  background: var(--c-bg);
}

/* Filters */
.course-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  justify-content: center;
  margin-bottom: var(--sp-10);
}

.filter-btn {
  padding: var(--sp-2) var(--sp-5);
  font-size: var(--text-sm);
  font-weight: var(--fw-medium);
  color: var(--c-muted);
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-full);
  transition: all var(--t-fast);
}

.filter-btn:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

.filter-btn--active {
  background: var(--c-primary);
  color: white;
  border-color: var(--c-primary);
  box-shadow: 0 2px 10px rgba(99,102,241,.3);
}

/* Grid */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-5);
  transition: opacity var(--t-fast);
}

.courses-grid--fading { opacity: 0; }

/* No results */
.no-courses {
  grid-column: 1/-1;
  text-align: center;
  padding: var(--sp-16);
  color: var(--c-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-4);
}

/* ── Course Card ──────────────────────────────────────────────────────────── */
.course-card {
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-lg);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
}

.course-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: rgba(99,102,241,.25);
}

/* Top gradient accent line */
.course-card__accent {
  height: 3px;
  flex-shrink: 0;
}

.course-card__badge {
  position: absolute;
  top: var(--sp-4);
  right: var(--sp-4);
  font-size: var(--text-xs);
  font-weight: var(--fw-bold);
  background: var(--c-primary);
  color: white;
  padding: 3px var(--sp-3);
  border-radius: var(--r-full);
  z-index: 1;
}

.course-card__head {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-4) 0;
}

.course-card__icon {
  width: 44px; height: 44px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.course-card__cat {
  font-size: var(--text-xs);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: .07em;
  padding: 3px var(--sp-3);
  border-radius: var(--r-full);
}

.course-card__body {
  padding: var(--sp-3) var(--sp-4) var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  flex: 1;
}

.course-card__title {
  font-size: var(--text-base);
  font-weight: var(--fw-bold);
  color: var(--c-dark);
  line-height: 1.35;
}

/* Stars */
.stars { display: flex; align-items: center; }
.star  { font-size: .8rem; }
.star--full  { color: var(--c-yellow); }
.star--half  { color: var(--c-yellow); }
.star--empty { color: var(--c-border); }

.course-card__meta {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  flex-wrap: wrap;
}

.course-card__rating  { font-size: var(--text-xs); font-weight: var(--fw-bold); color: var(--c-text); }
.course-card__students { font-size: var(--text-xs); color: var(--c-light); }

.course-card__instructor {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  font-size: var(--text-xs);
  color: var(--c-muted);
}

.course-card__desc {
  font-size: var(--text-sm);
  color: var(--c-muted);
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-card__topics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1);
}

.topic-pill {
  font-size: 0.68rem;
  font-weight: var(--fw-semibold);
  color: var(--c-muted);
  background: var(--c-bg-alt);
  padding: 2px var(--sp-2);
  border-radius: var(--r-full);
}

.topic-pill--more {
  color: var(--c-primary);
  background: rgba(99,102,241,.08);
}

/* Card footer */
.course-card__footer {
  padding: var(--sp-4);
  border-top: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.course-card__info-row {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  flex-wrap: wrap;
}

.info-chip {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-xs);
  color: var(--c-muted);
  background: var(--c-bg);
  padding: 3px var(--sp-2);
  border-radius: var(--r-full);
}

.level-chip { font-weight: var(--fw-semibold); }

.course-card__cta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
}

.course-card__cta-row .btn--sm {
  padding: var(--sp-2) var(--sp-3);
  font-size: var(--text-xs);
}

.course-card__cta-row .btn--sm svg {
  display: none;
}

.course-card__price {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.price-from {
  font-size: var(--text-xs);
  color: var(--c-light);
}

.price-value {
  font-size: var(--text-lg);
  font-weight: var(--fw-black);
  color: var(--c-dark);
}

/* ── 10. Benefits ─────────────────────────────────────────────────────────── */
#beneficios {
  padding: var(--sp-24) 0;
  background: var(--c-surface);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}

.benefit-card {
  padding: var(--sp-6);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-lg);
  background: var(--c-bg);
  transition: border-color var(--t-base), transform var(--t-base), box-shadow var(--t-base);
}

.benefit-card:hover {
  border-color: var(--c-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.benefit-card__icon {
  width: 52px; height: 52px;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, rgba(99,102,241,.12) 0%, rgba(139,92,246,.12) 100%);
  color: var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-4);
  font-size: 1.5rem;
}

.benefit-card__title {
  font-size: var(--text-base);
  font-weight: var(--fw-bold);
  color: var(--c-dark);
  margin-bottom: var(--sp-2);
}

.benefit-card__desc {
  font-size: var(--text-sm);
  color: var(--c-muted);
  line-height: 1.65;
}

/* ── 11. Process ──────────────────────────────────────────────────────────── */
#como-funciona {
  padding: var(--sp-24) 0;
  background: var(--c-bg);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-6);
  position: relative;
}

.process-grid::before {
  content: '';
  position: absolute;
  top: 28px;
  left: calc(12.5% + 22px);
  right: calc(12.5% + 22px);
  height: 2px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-violet));
  opacity: .3;
}

.process-step { text-align: center; }

.process-step__num {
  width: 56px; height: 56px;
  border-radius: var(--r-full);
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-violet) 100%);
  color: white;
  font-size: var(--text-lg);
  font-weight: var(--fw-black);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--sp-5);
  position: relative;
  z-index: 1;
  box-shadow: 0 4px 16px rgba(99,102,241,.35);
}

.process-step__title {
  font-size: var(--text-base);
  font-weight: var(--fw-bold);
  color: var(--c-dark);
  margin-bottom: var(--sp-2);
}

.process-step__desc {
  font-size: var(--text-sm);
  color: var(--c-muted);
  line-height: 1.65;
}

/* ── 12. Modality ─────────────────────────────────────────────────────────── */
#modalidad {
  padding: var(--sp-24) 0;
  background: linear-gradient(135deg, var(--c-dark) 0%, #1e1040 50%, var(--c-dark) 100%);
  overflow: hidden;
  position: relative;
}

#modalidad::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(99,102,241,.12) 0%, transparent 55%);
  pointer-events: none;
}

#modalidad .section-tag { background: rgba(99,102,241,.2); color: var(--c-primary-light); }
#modalidad .section-title { color: white; }
#modalidad .section-subtitle { color: rgba(255,255,255,.6); }

.modality-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
  position: relative;
}

.modality-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--r-lg);
  padding: var(--sp-8) var(--sp-6);
  text-align: center;
  transition: background var(--t-base), transform var(--t-base);
}

.modality-card:hover {
  background: rgba(255,255,255,.09);
  transform: translateY(-3px);
}

.modality-card--featured {
  background: linear-gradient(135deg, rgba(99,102,241,.2) 0%, rgba(139,92,246,.15) 100%);
  border-color: rgba(99,102,241,.45);
  position: relative;
}

.modality-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-violet) 100%);
  color: white;
  font-size: var(--text-xs);
  font-weight: var(--fw-bold);
  padding: 3px var(--sp-4);
  border-radius: var(--r-full);
  white-space: nowrap;
}

.modality-card__icon {
  font-size: 2.5rem;
  margin-bottom: var(--sp-4);
}

.modality-card__title {
  font-size: var(--text-lg);
  font-weight: var(--fw-bold);
  color: white;
  margin-bottom: var(--sp-3);
}

.modality-card__desc {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.6);
  line-height: 1.7;
  margin-bottom: var(--sp-5);
}

.modality-card__list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  text-align: left;
}

.modality-card__list li {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-sm);
  color: rgba(255,255,255,.65);
}

.modality-card__list li::before {
  content: '✓';
  color: var(--c-accent);
  font-weight: var(--fw-bold);
  flex-shrink: 0;
}

/* ── 13. Testimonials ─────────────────────────────────────────────────────── */
#testimonios {
  padding: var(--sp-24) 0;
  background: var(--c-bg);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.testimonial-card {
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  transition: transform var(--t-base), box-shadow var(--t-base);
}

.testimonial-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.testimonial-stars {
  display: flex;
  gap: 2px;
}

.t-star { color: var(--c-yellow); font-size: .9rem; }

.testimonial-quote {
  font-size: var(--text-sm);
  color: var(--c-text);
  line-height: 1.75;
  font-style: italic;
  flex: 1;
}

.testimonial-quote::before { content: '"'; }
.testimonial-quote::after  { content: '"'; }

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--c-border);
}

.t-avatar {
  width: 42px; height: 42px;
  border-radius: var(--r-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: var(--fw-black);
  color: white;
  flex-shrink: 0;
}

.t-name {
  font-size: var(--text-sm);
  font-weight: var(--fw-bold);
  color: var(--c-dark);
}

.t-course {
  font-size: var(--text-xs);
  color: var(--c-muted);
}

/* ── 14. Pricing ──────────────────────────────────────────────────────────── */
#planes {
  padding: var(--sp-24) 0;
  background: var(--c-surface);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
  align-items: start;
}

.plan-card {
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-xl);
  padding: var(--sp-8) var(--sp-6);
  background: var(--c-bg);
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  transition: transform var(--t-base), box-shadow var(--t-base);
}

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

.plan-card--featured {
  background: linear-gradient(160deg, #1e1040 0%, var(--c-primary-dark) 100%);
  border-color: rgba(129,140,248,.4);
  position: relative;
  transform: scale(1.03);
  box-shadow: var(--shadow-glow);
}

.plan-card--featured:hover { transform: scale(1.03) translateY(-4px); }

.plan-featured-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-violet) 100%);
  color: white;
  font-size: var(--text-xs);
  font-weight: var(--fw-bold);
  padding: 5px var(--sp-5);
  border-radius: var(--r-full);
  white-space: nowrap;
}

.plan-name {
  font-size: var(--text-sm);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--c-primary);
}

.plan-card--featured .plan-name { color: var(--c-primary-light); }

.plan-price {
  display: flex;
  align-items: baseline;
  gap: var(--sp-1);
}

.plan-price__value {
  font-size: var(--text-4xl);
  font-weight: var(--fw-black);
  color: var(--c-dark);
  letter-spacing: -.03em;
}

.plan-card--featured .plan-price__value { color: white; }

.plan-price__period {
  font-size: var(--text-sm);
  color: var(--c-light);
}

.plan-card--featured .plan-price__period { color: rgba(255,255,255,.5); }

.plan-desc {
  font-size: var(--text-sm);
  color: var(--c-muted);
  line-height: 1.65;
}

.plan-card--featured .plan-desc { color: rgba(255,255,255,.65); }

.plan-features {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  flex: 1;
}

.plan-feature {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: var(--text-sm);
  color: var(--c-text);
}

.plan-card--featured .plan-feature { color: rgba(255,255,255,.8); }

.plan-feature--off { opacity: .35; }

.feature-check {
  width: 20px; height: 20px;
  border-radius: var(--r-full);
  background: rgba(99,102,241,.12);
  color: var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: .7rem;
  font-weight: var(--fw-bold);
}

.plan-card--featured .feature-check {
  background: rgba(129,140,248,.2);
  color: var(--c-primary-light);
}

.plan-feature--off .feature-check {
  background: var(--c-bg-alt);
  color: var(--c-light);
}

.plan-divider {
  height: 1px;
  background: var(--c-border);
}

.plan-card--featured .plan-divider { background: rgba(255,255,255,.1); }

/* ── 15. FAQ ──────────────────────────────────────────────────────────────── */
#preguntas {
  padding: var(--sp-24) 0;
  background: var(--c-bg);
}

.faq-list {
  max-width: 720px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.faq-item {
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color var(--t-base);
}

.faq-item--open { border-color: var(--c-primary); }

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding: var(--sp-5) var(--sp-6);
  text-align: left;
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  color: var(--c-dark);
  transition: background var(--t-fast);
}

.faq-question:hover { background: rgba(99,102,241,.04); }

.faq-chevron {
  width: 20px; height: 20px;
  color: var(--c-primary);
  flex-shrink: 0;
  transition: transform var(--t-base);
}

.faq-item--open .faq-chevron { transform: rotate(180deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--t-slow);
}

.faq-answer-inner {
  padding: 0 var(--sp-6) var(--sp-6);
  font-size: var(--text-sm);
  color: var(--c-muted);
  line-height: 1.78;
}

/* ── 16. CTA ──────────────────────────────────────────────────────────────── */
#cta {
  padding: var(--sp-24) 0;
  background: linear-gradient(135deg, #0c0a1e 0%, #1a1040 45%, #312e81 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

#cta::before {
  content: '';
  position: absolute;
  top: -80px; left: 50%;
  transform: translateX(-50%);
  width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,.18) 0%, transparent 65%);
  pointer-events: none;
}

.cta__tag { background: rgba(99,102,241,.2); color: var(--c-primary-light); }

.cta__title {
  font-size: var(--text-3xl);
  font-weight: var(--fw-black);
  color: white;
  letter-spacing: -.025em;
  margin-bottom: var(--sp-4);
  position: relative;
}

.cta__title em {
  font-style: normal;
  background: linear-gradient(135deg, #a5b4fc 0%, #c4b5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta__subtitle {
  font-size: var(--text-md);
  color: rgba(255,255,255,.65);
  max-width: 500px;
  margin: 0 auto var(--sp-8);
  line-height: 1.75;
  position: relative;
}

.cta__actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--sp-3);
  position: relative;
}

.cta__note {
  margin-top: var(--sp-5);
  font-size: var(--text-xs);
  color: rgba(255,255,255,.35);
  position: relative;
}

/* ── 17. WhatsApp FAB ─────────────────────────────────────────────────────── */
.whatsapp-fab {
  position: fixed;
  bottom: var(--sp-6); right: var(--sp-6);
  z-index: 200;
  width: 58px; height: 58px;
  border-radius: var(--r-full);
  background: var(--c-whatsapp);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,.45);
  transition: transform var(--t-fast), box-shadow var(--t-fast);
}

.whatsapp-fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37,211,102,.55);
}

.whatsapp-fab::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--r-full);
  background: var(--c-whatsapp);
  animation: fabPulse 2.8s ease-out infinite;
  z-index: -1;
}

@keyframes fabPulse {
  0%   { transform: scale(1);    opacity: .6; }
  70%  { transform: scale(1.55); opacity: 0;  }
  100% { transform: scale(1.55); opacity: 0;  }
}

/* ── 18. Footer ───────────────────────────────────────────────────────────── */
#site-footer {
  background: var(--c-dark);
  color: rgba(255,255,255,.55);
  padding: var(--sp-16) 0 var(--sp-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--sp-12);
  margin-bottom: var(--sp-10);
}

.footer__desc {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.4);
  line-height: 1.75;
  margin: var(--sp-4) 0 var(--sp-6);
}

.footer__col-title {
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  color: white;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: var(--sp-4);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.footer__links a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.45);
  transition: color var(--t-fast);
}
.footer__links a:hover { color: white; }

.footer__contact-row {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-2);
  font-size: var(--text-sm);
  color: rgba(255,255,255,.45);
  margin-bottom: var(--sp-3);
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.07);
  padding-top: var(--sp-6);
  font-size: var(--text-xs);
  color: rgba(255,255,255,.25);
  text-align: center;
}