/* ==========================================================================
   Allen Activator — Sistema de diseño
   Plataforma de formación en Inteligencia Artificial
   https://allentool.pro
   ========================================================================== */

:root {
  /* Marca */
  --aa-primary: #6d5efc;
  --aa-primary-600: #5a4be0;
  --aa-primary-700: #4a3ccb;
  --aa-accent: #22d3ee;
  --aa-accent-600: #12b6cf;
  --aa-mint: #34d399;

  /* Tinta y superficies */
  --aa-ink: #0d1220;
  --aa-ink-2: #141b31;
  --aa-navy: #0b1020;
  --aa-text: #1c2436;
  --aa-muted: #5b667f;
  --aa-muted-2: #8a94a8;
  --aa-line: #e7e9f2;
  --aa-line-2: #eef0f7;
  --aa-bg: #ffffff;
  --aa-bg-soft: #f6f7fb;
  --aa-bg-soft-2: #f0f2fa;

  /* Estados */
  --aa-success: #10b981;
  --aa-warning: #f59e0b;
  --aa-danger: #ef4444;

  /* Gradientes */
  --aa-grad: linear-gradient(120deg, #6d5efc 0%, #8b5cf6 40%, #22d3ee 100%);
  --aa-grad-soft: linear-gradient(120deg, rgba(109,94,252,.12), rgba(34,211,238,.12));
  --aa-grad-dark: radial-gradient(1200px 600px at 15% -10%, rgba(109,94,252,.35), transparent 60%),
                  radial-gradient(1000px 500px at 90% 0%, rgba(34,211,238,.22), transparent 55%),
                  linear-gradient(180deg, #0b1020 0%, #0d1428 100%);

  /* Sombra y radios */
  --aa-shadow-sm: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.08);
  --aa-shadow: 0 10px 30px -12px rgba(23,31,58,.25);
  --aa-shadow-lg: 0 30px 60px -20px rgba(23,31,58,.35);
  --aa-radius: 16px;
  --aa-radius-sm: 12px;
  --aa-radius-lg: 24px;

  /* Tipografía */
  --aa-font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--aa-font);
  color: var(--aa-text);
  background: var(--aa-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 { color: var(--aa-ink); font-weight: 800; letter-spacing: -.02em; }
a { color: var(--aa-primary-600); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--aa-primary-700); }
img { max-width: 100%; height: auto; }

.container { max-width: 1180px; }

/* Selección */
::selection { background: rgba(109,94,252,.2); }

/* Utilidades de texto ------------------------------------------------------ */
.text-gradient {
  background: var(--aa-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.text-muted-2 { color: var(--aa-muted) !important; }
.lead-2 { font-size: 1.12rem; color: var(--aa-muted); }
.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--aa-primary-600);
}
.section { padding: 5.5rem 0; }
.section-sm { padding: 3.5rem 0; }
.bg-soft { background: var(--aa-bg-soft); }
.bg-soft-2 { background: var(--aa-bg-soft-2); }
.bg-ink { background: var(--aa-navy); color: #e7ecff; }
.max-680 { max-width: 680px; }
.max-760 { max-width: 760px; }

/* Botones ------------------------------------------------------------------ */
.btn { font-weight: 600; border-radius: 999px; padding: .7rem 1.4rem; transition: all .18s ease; }
.btn-lg { padding: .9rem 1.8rem; font-size: 1.02rem; }
.btn-aa {
  background: var(--aa-grad);
  color: #fff; border: 0;
  box-shadow: 0 10px 24px -10px rgba(109,94,252,.7);
}
.btn-aa:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 16px 30px -10px rgba(109,94,252,.75); }
.btn-aa:active { transform: translateY(0); }
.btn-ink { background: var(--aa-ink); color: #fff; border: 0; }
.btn-ink:hover { background: #000; color: #fff; transform: translateY(-2px); }
.btn-outline-aa {
  background: transparent; color: var(--aa-primary-700);
  border: 1.5px solid rgba(109,94,252,.35);
}
.btn-outline-aa:hover { background: rgba(109,94,252,.08); color: var(--aa-primary-700); border-color: var(--aa-primary); }
.btn-light-ghost { background: rgba(255,255,255,.1); color: #fff; border: 1.5px solid rgba(255,255,255,.25); }
.btn-light-ghost:hover { background: rgba(255,255,255,.18); color: #fff; }

/* Navbar ------------------------------------------------------------------- */
.aa-nav {
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--aa-line);
  transition: box-shadow .2s ease;
}
.aa-nav.scrolled { box-shadow: var(--aa-shadow-sm); }
.aa-brand { display: inline-flex; align-items: center; gap: .6rem; font-weight: 800; font-size: 1.18rem; color: var(--aa-ink); letter-spacing: -.02em; }
.aa-brand:hover { color: var(--aa-ink); }
.aa-brand .logo { width: 34px; height: 34px; flex: 0 0 auto; }
.aa-nav .nav-link { color: var(--aa-text); font-weight: 500; padding: .5rem .9rem; border-radius: 10px; }
.aa-nav .nav-link:hover, .aa-nav .nav-link.active { color: var(--aa-primary-700); background: rgba(109,94,252,.07); }

/* Hero --------------------------------------------------------------------- */
.hero {
  position: relative;
  background: var(--aa-grad-dark);
  color: #eef1ff;
  overflow: hidden;
  padding: 6.5rem 0 6rem;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 22px 22px; opacity: .5; pointer-events: none;
}
.hero .container { position: relative; z-index: 2; }
.hero h1 { color: #fff; font-size: clamp(2.1rem, 4.6vw, 3.6rem); line-height: 1.07; }
.hero p.lead { color: #c7cff2; font-size: 1.18rem; }
.hero .badge-pill { background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.18); color: #dfe4ff; }

.hero-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--aa-radius-lg);
  backdrop-filter: blur(6px);
  box-shadow: var(--aa-shadow-lg);
}

/* Badges / pills ----------------------------------------------------------- */
.badge-pill {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .38rem .8rem; border-radius: 999px;
  font-size: .8rem; font-weight: 600;
  background: rgba(109,94,252,.1); color: var(--aa-primary-700);
}
.badge-soft { background: var(--aa-bg-soft); color: var(--aa-muted); border: 1px solid var(--aa-line); }
.badge-mint { background: rgba(52,211,153,.12); color: #059669; }
.badge-amber { background: rgba(245,158,11,.14); color: #b45309; }
.badge-cyan { background: rgba(34,211,238,.14); color: #0e7490; }

/* Tarjetas ----------------------------------------------------------------- */
.card-aa {
  background: #fff; border: 1px solid var(--aa-line);
  border-radius: var(--aa-radius); box-shadow: var(--aa-shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  height: 100%;
}
.card-aa:hover { transform: translateY(-4px); box-shadow: var(--aa-shadow); border-color: rgba(109,94,252,.28); }

.feature-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--aa-grad-soft); color: var(--aa-primary-700);
}
.feature-icon svg { width: 26px; height: 26px; }

/* Tarjeta de curso --------------------------------------------------------- */
.course-card { overflow: hidden; display: flex; flex-direction: column; }
.course-thumb {
  position: relative; aspect-ratio: 16 / 9; display: flex; align-items: center; justify-content: center;
  color: #fff; overflow: hidden;
}
.course-thumb .glyph { width: 64px; height: 64px; opacity: .95; filter: drop-shadow(0 6px 14px rgba(0,0,0,.25)); }
.course-thumb .chip {
  position: absolute; top: .8rem; left: .8rem;
  background: rgba(0,0,0,.35); color: #fff; border: 1px solid rgba(255,255,255,.25);
  padding: .28rem .7rem; border-radius: 999px; font-size: .74rem; font-weight: 600; backdrop-filter: blur(4px);
}
.course-thumb.grad-claude   { background: linear-gradient(135deg, #d97757 0%, #b45309 100%); }
.course-thumb.grad-openai   { background: linear-gradient(135deg, #10a37f 0%, #0b6b52 100%); }
.course-thumb.grad-combo    { background: linear-gradient(135deg, #6d5efc 0%, #10a37f 100%); }
.course-thumb.grad-eleven   { background: linear-gradient(135deg, #111827 0%, #374151 100%); }
.course-thumb.grad-mid      { background: linear-gradient(135deg, #0ea5e9 0%, #6d5efc 100%); }
.course-thumb.grad-automate { background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%); }
.course-thumb.grad-prompt   { background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%); }
.course-thumb.grad-negocio  { background: linear-gradient(135deg, #059669 0%, #0e7490 100%); }

.course-body { padding: 1.4rem; display: flex; flex-direction: column; flex: 1; }
.course-meta { display: flex; flex-wrap: wrap; gap: .5rem 1rem; color: var(--aa-muted); font-size: .84rem; }
.course-meta span { display: inline-flex; align-items: center; gap: .35rem; }
.course-price { font-weight: 800; font-size: 1.5rem; color: var(--aa-ink); }
.course-price .old { font-size: .95rem; color: var(--aa-muted-2); text-decoration: line-through; font-weight: 500; margin-left: .4rem; }
.course-price .cur { font-size: .9rem; color: var(--aa-muted); font-weight: 600; }

/* Lista de checks ---------------------------------------------------------- */
.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li { position: relative; padding-left: 2rem; margin-bottom: .7rem; color: var(--aa-text); }
.check-list li::before {
  content: ""; position: absolute; left: 0; top: .18rem;
  width: 1.35rem; height: 1.35rem; border-radius: 50%;
  background: rgba(16,185,129,.14) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2310b981' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / 15px no-repeat;
}

/* Estadísticas ------------------------------------------------------------- */
.stat-num { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800; letter-spacing: -.03em; }
.stat-label { color: var(--aa-muted); font-size: .95rem; }

/* Precios ------------------------------------------------------------------ */
.price-card { position: relative; }
.price-card.featured { border-color: transparent; box-shadow: var(--aa-shadow-lg); }
.price-card.featured::before {
  content: ""; position: absolute; inset: -1.5px; border-radius: calc(var(--aa-radius) + 1.5px);
  background: var(--aa-grad); z-index: -1;
}
.price-amount { font-size: 2.8rem; font-weight: 800; letter-spacing: -.03em; color: var(--aa-ink); }
.price-amount .cur { font-size: 1.2rem; vertical-align: super; color: var(--aa-muted); font-weight: 700; }
.price-amount .per { font-size: 1rem; color: var(--aa-muted); font-weight: 500; }

/* Testimonios -------------------------------------------------------------- */
.testimonial { background: #fff; border: 1px solid var(--aa-line); border-radius: var(--aa-radius); padding: 1.6rem; height: 100%; }
.testimonial .stars { color: #f59e0b; letter-spacing: 2px; }
.avatar {
  width: 44px; height: 44px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; color: #fff; background: var(--aa-grad); flex: 0 0 auto;
}

/* Franja CTA --------------------------------------------------------------- */
.cta-band { background: var(--aa-grad-dark); border-radius: var(--aa-radius-lg); color: #fff; padding: 3.2rem; position: relative; overflow: hidden; }
.cta-band h2 { color: #fff; }
.cta-band p { color: #cdd4f5; }

/* Acordeón (FAQ) ----------------------------------------------------------- */
.accordion-aa .accordion-item { border: 1px solid var(--aa-line); border-radius: var(--aa-radius-sm) !important; margin-bottom: .8rem; overflow: hidden; }
.accordion-aa .accordion-button { font-weight: 600; color: var(--aa-ink); padding: 1.15rem 1.3rem; }
.accordion-aa .accordion-button:not(.collapsed) { background: rgba(109,94,252,.06); color: var(--aa-primary-700); box-shadow: none; }
.accordion-aa .accordion-button:focus { box-shadow: none; border-color: var(--aa-line); }
.accordion-aa .accordion-body { color: var(--aa-muted); padding: 0 1.3rem 1.25rem; }

/* Pasos -------------------------------------------------------------------- */
.step-num {
  width: 42px; height: 42px; border-radius: 12px; flex: 0 0 auto;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 800; color: #fff; background: var(--aa-grad);
}

/* Logos "confían en" ------------------------------------------------------- */
.trust-logo { color: var(--aa-muted-2); font-weight: 700; font-size: 1.05rem; opacity: .8; letter-spacing: -.01em; }

/* Formularios -------------------------------------------------------------- */
.form-control, .form-select {
  border-radius: 12px; border: 1.5px solid var(--aa-line); padding: .7rem .9rem; color: var(--aa-text);
}
.form-control:focus, .form-select:focus { border-color: var(--aa-primary); box-shadow: 0 0 0 4px rgba(109,94,252,.12); }
.form-label { font-weight: 600; color: var(--aa-ink); margin-bottom: .35rem; font-size: .92rem; }

/* Contenido legal ---------------------------------------------------------- */
.legal { color: var(--aa-text); }
.legal h2 { font-size: 1.35rem; margin-top: 2.4rem; margin-bottom: .8rem; }
.legal h3 { font-size: 1.08rem; margin-top: 1.6rem; margin-bottom: .5rem; }
.legal p, .legal li { color: #38425a; }
.legal ul { padding-left: 1.2rem; }
.legal li { margin-bottom: .4rem; }
.legal .toc { background: var(--aa-bg-soft); border: 1px solid var(--aa-line); border-radius: var(--aa-radius-sm); padding: 1.2rem 1.4rem; }
.legal .toc a { color: var(--aa-primary-700); }
.page-head { background: var(--aa-grad-dark); color: #fff; padding: 4rem 0 3.5rem; }
.page-head h1 { color: #fff; }
.page-head p { color: #c7cff2; }

/* Migas de pan ------------------------------------------------------------- */
.breadcrumb-aa { font-size: .85rem; }
.breadcrumb-aa a { color: rgba(255,255,255,.8); }
.breadcrumb-aa .sep { color: rgba(255,255,255,.4); margin: 0 .4rem; }
.breadcrumb-aa .current { color: #fff; }

/* Footer ------------------------------------------------------------------- */
.aa-footer { background: var(--aa-navy); color: #aeb6d4; padding: 4rem 0 1.5rem; }
.aa-footer h5 { color: #fff; font-size: .95rem; letter-spacing: .04em; text-transform: uppercase; margin-bottom: 1.1rem; font-weight: 700; }
.aa-footer a { color: #aeb6d4; }
.aa-footer a:hover { color: #fff; }
.aa-footer .brand-line { color: #fff; }
.aa-footer .foot-list { list-style: none; padding: 0; margin: 0; }
.aa-footer .foot-list li { margin-bottom: .6rem; }
.aa-footer .foot-bottom { border-top: 1px solid rgba(255,255,255,.08); margin-top: 2.5rem; padding-top: 1.5rem; color: #7f88ab; font-size: .88rem; }
.aa-footer .social {
  width: 38px; height: 38px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.06); color: #cfd6f0; border: 1px solid rgba(255,255,255,.08);
}
.aa-footer .social:hover { background: rgba(255,255,255,.12); color: #fff; }
.pay-badge {
  display: inline-flex; align-items: center; gap: .4rem; padding: .3rem .65rem; border-radius: 8px;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); color: #cfd6f0; font-size: .78rem; font-weight: 600;
}

/* Divisores / detalles ----------------------------------------------------- */
.divider-dot { color: var(--aa-line); }
.ring-soft { box-shadow: 0 0 0 6px rgba(109,94,252,.06); }

/* Animación de entrada ----------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* Responsivo --------------------------------------------------------------- */
@media (max-width: 991.98px) {
  .aa-nav .navbar-nav { padding: .6rem 0; }
  .hero { padding: 4.5rem 0 4rem; }
  .cta-band { padding: 2.2rem; }
  .section { padding: 4rem 0; }
}
@media (max-width: 575.98px) {
  .display-brand { font-size: 2rem; }
  .cta-band { padding: 1.8rem; }
}