/* ============================================================
   Data Analytics con IA aplicada — Ignacio Argañaraz
   Sistema: ink #191B22 + ámbar #E8A23D
   Rediseñado 2026-08-26: se reemplazó el navy corporativo original
   (#1E2761, heredado del PDF impreso de baja distribución) por un
   ink/grafito neutro — misma seriedad, sin sumarse al navy que ya
   usa la mayoría de la competencia relevada. Ámbar sin cambios.
   ============================================================ */

:root {
  --ink-900: #191b22;
  --ink-700: #24262f;
  --amber: #e8a23d;
  --white: #ffffff;
  --panel: #f4f5f8;
  --border: #e2e3eb;
  --text-dark: #191b22;
  --text-body: #44546a;
  --text-mute: #6b7180;
  --on-ink: #e4e5ea;
  --on-ink-mute: #aeb1bc;

  --font-display: "Source Serif 4", Cambria, Georgia, "Times New Roman", serif;
  --font-body: "Inter", Calibri, -apple-system, "Segoe UI", system-ui, sans-serif;
  --font-mono: "Fira Code", "Cascadia Code", Consolas, monospace;

  --radius: 12px;
  --max-w: 1120px;
  --header-h: 68px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text-body);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
table { border-collapse: collapse; width: 100%; }

a { color: inherit; }

.container {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 20px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--text-dark);
}
.on-navy h1, .on-navy h2, .on-navy h3, section.navy h1, section.navy h2, section.navy h3 {
  color: var(--white);
}

h2 { font-size: clamp(1.6rem, 1.2rem + 1.8vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 1rem + 0.6vw, 1.4rem); }

.kicker {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 0.9em;
}

.lede {
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.15rem);
  color: var(--text-body);
  max-width: 60ch;
}
section.navy .lede { color: var(--on-ink); }

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: 12px; top: -60px;
  background: var(--amber);
  color: var(--ink-900);
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: 700;
  z-index: 200;
  transition: top .15s ease;
}
.skip-link:focus { top: 12px; }

/* ---------- secciones ---------- */
section {
  padding: clamp(48px, 6vw, 96px) 0;
}
section.navy { background: var(--ink-900); color: var(--on-ink); }
section.panel-bg { background: var(--panel); }

.section-head { max-width: 68ch; margin-bottom: 2.5rem; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(25, 27, 34, 0.96);
  backdrop-filter: saturate(140%) blur(6px);
  height: var(--header-h);
}
.site-header .container {
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 700;
  color: var(--white); text-decoration: none; font-size: 1.05rem;
  white-space: nowrap;
}
.site-header .header-cta { display: none; }
.brand .mark {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--amber); color: var(--ink-900);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-body); font-weight: 800; font-size: 0.85rem;
  flex-shrink: 0;
}
.main-nav { display: none; }
.main-nav ul { display: flex; gap: 22px; list-style: none; margin: 0; padding: 0; }
.main-nav a {
  color: var(--on-ink); text-decoration: none; font-size: 0.92rem; font-weight: 500;
}
.main-nav a:hover { color: var(--amber); }

@media (min-width: 900px) {
  .main-nav { display: block; }
  .nav-toggle { display: none; }
  .site-header .header-cta { display: inline-flex; }
}

.nav-toggle {
  background: none; border: 1px solid var(--on-ink-mute);
  color: var(--white); border-radius: 8px; padding: 8px 10px;
  cursor: pointer;
}

.mobile-nav {
  display: none;
  background: var(--ink-700);
  border-top: 1px solid rgba(255,255,255,.1);
}
.mobile-nav.is-open { display: block; }
.mobile-nav ul { list-style: none; margin: 0; padding: 8px 20px 16px; }
.mobile-nav a {
  display: block; padding: 10px 0; color: var(--on-ink);
  text-decoration: none; border-bottom: 1px solid rgba(255,255,255,.08);
}
@media (min-width: 900px) { .mobile-nav { display: none !important; } }

/* ---------- botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-body); font-weight: 700; font-size: 0.98rem;
  padding: 14px 26px; border-radius: 999px;
  text-decoration: none; cursor: pointer; border: 2px solid transparent;
  transition: transform .12s ease, background .12s ease, box-shadow .12s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--amber); color: var(--ink-900);
  box-shadow: 0 6px 18px rgba(232, 162, 61, 0.35);
}
.btn-primary:hover { background: #f5b452; }
.btn-ghost {
  background: transparent; color: var(--white); border-color: rgba(255,255,255,.35);
}
.btn-ghost:hover { border-color: var(--amber); color: var(--amber); }
.btn-outline-dark {
  background: transparent; color: var(--ink-900); border-color: var(--ink-900);
}
.btn-outline-dark:hover { background: var(--ink-900); color: var(--white); }
.btn-block { width: 100%; }

/* ---------- hero ---------- */
.hero { padding-top: clamp(40px, 6vw, 72px); }
.hero .container {
  display: grid; gap: 40px; align-items: center;
}
@media (min-width: 900px) {
  .hero .container { grid-template-columns: 1.15fr 0.85fr; }
}
.hero h1 { font-size: clamp(2.1rem, 1.6rem + 2.4vw, 3.3rem); color: var(--white); }
.hero-authority {
  margin-top: 1.4rem;
  padding: 14px 18px;
  background: rgba(232, 162, 61, 0.1);
  border-left: 3px solid var(--amber);
  border-radius: 0 8px 8px 0;
  font-size: 0.98rem;
  color: var(--white);
}
.hero-authority strong { color: var(--amber); }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 1.8rem; align-items: center; }
.hero-ctas .link-more {
  color: var(--on-ink); text-decoration: underline; text-underline-offset: 3px; font-weight: 500;
}

.hero-meta {
  display: flex; flex-wrap: wrap; gap: 10px 22px;
  margin-top: 2rem; padding-top: 1.6rem;
  border-top: 1px solid rgba(255,255,255,.15);
  font-size: 0.86rem; color: var(--on-ink-mute);
}
.hero-meta li { list-style: none; display: flex; align-items: center; gap: 6px; }
.hero-meta svg { width: 15px; height: 15px; fill: var(--amber); flex-shrink: 0; }

.hero-photo {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3.6;
  background: var(--ink-700);
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }
.hero-photo .badge {
  position: absolute; left: 16px; bottom: 16px;
  background: var(--white); color: var(--ink-900);
  padding: 8px 14px; border-radius: 999px;
  font-size: 0.8rem; font-weight: 700;
  display: flex; align-items: center; gap: 6px;
}
.hero-photo .badge svg { width: 14px; height: 14px; fill: var(--amber); }

/* ---------- TL;DR ---------- */
.tldr {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 36px);
}
.tldr ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 14px; }
.tldr li { display: flex; gap: 12px; align-items: flex-start; }
.tldr .ico {
  flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%;
  background: var(--amber); display: flex; align-items: center; justify-content: center;
}
.tldr .ico svg { width: 14px; height: 14px; fill: var(--ink-900); }
.tldr-cta { text-align: center; margin-top: 28px; }

/* ---------- comparativa antes/hoy ---------- */
.compare { display: grid; gap: 20px; }
@media (min-width: 800px) { .compare { grid-template-columns: 1fr 1fr; } }
.compare-col { border-radius: var(--radius); padding: clamp(22px, 3vw, 30px); }
.compare-col.old { background: var(--panel); border: 1px solid var(--border); }
.compare-col.new { background: var(--ink-900); color: var(--on-ink); }
.compare-col h3 { font-family: var(--font-body); font-size: 0.82rem; letter-spacing: 0.1em; text-transform: uppercase; }
.compare-col.old h3 { color: var(--text-mute); }
.compare-col.new h3 { color: var(--amber); }
.compare-col ul { list-style: none; margin: 1.2rem 0 0; padding: 0; display: grid; gap: 14px; }
.compare-col li { display: flex; gap: 12px; align-items: flex-start; }
.compare-col svg { width: 20px; height: 20px; flex-shrink: 0; margin-top: 2px; }
.compare-col.old svg { fill: var(--ink-900); }
.compare-col.new svg { fill: var(--amber); }
.compare-note { grid-column: 1 / -1; font-style: italic; color: var(--text-dark); margin-top: 6px; }

/* ---------- tarjetas de perfil / diferenciales ---------- */
.card-grid { display: grid; gap: 20px; }
@media (min-width: 700px) { .card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 700px) { .card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); } }

.profile-card {
  background: var(--ink-700);
  border-radius: var(--radius);
  padding: 28px 24px;
  color: var(--on-ink);
}
.profile-card .ico-circle {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--amber); display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.profile-card .ico-circle svg { width: 24px; height: 24px; fill: var(--ink-900); }
.profile-card h3 { color: var(--white); }
.profile-card p { margin: 0; font-size: 0.95rem; }

.diff-card {
  border-radius: var(--radius);
  padding: 28px 24px;
}
.diff-card.dark { background: var(--ink-900); color: var(--on-ink); }
.diff-card.light { background: var(--panel); border: 1px solid var(--border); }
.diff-card .ico-circle {
  width: 48px; height: 48px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.diff-card.dark .ico-circle { background: var(--amber); }
.diff-card.dark .ico-circle svg { fill: var(--ink-900); width: 24px; height: 24px; }
.diff-card.light .ico-circle { background: var(--ink-900); }
.diff-card.light .ico-circle svg { fill: var(--white); width: 24px; height: 24px; }
.diff-card.dark h3 { color: var(--white); }
.diff-card p { margin: 0; font-size: 0.95rem; }
.diff-card.light p { color: var(--text-body); }

.section-cta { text-align: center; margin-top: 2.4rem; }

/* ---------- quién te enseña ---------- */
.instructor { display: grid; gap: 40px; align-items: start; }
@media (min-width: 900px) { .instructor { grid-template-columns: 320px 1fr; } }
.instructor-photo { border-radius: var(--radius); overflow: hidden; }
.instructor-photo img { width: 100%; height: auto; }
.instructor-bio p { margin: 0 0 1rem; }
.instructor-bio .linkedin-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; color: var(--ink-900); text-decoration: none;
  border-bottom: 2px solid var(--amber); padding-bottom: 2px;
}
.instructor-bio .linkedin-link svg { width: 16px; height: 16px; fill: var(--ink-900); }

.industry-strip {
  margin-top: 1.8rem;
  padding: 22px;
  background: var(--panel);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.industry-strip .kicker { color: var(--ink-900); opacity: .65; }
.industry-strip ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 12px 28px;
}
.industry-strip li {
  font-family: var(--font-display); font-weight: 700; color: var(--ink-900);
  font-size: 1.05rem;
}

.proof-list { list-style: none; margin: 1.6rem 0 0; padding: 0; display: grid; gap: 16px; }
.proof-list li { display: flex; gap: 12px; align-items: flex-start; }
.proof-list svg { width: 20px; height: 20px; fill: var(--amber); flex-shrink: 0; margin-top: 3px; }
.proof-list strong { color: var(--text-dark); }

/* ---------- cómo cursás ---------- */
.stat-cards { display: grid; gap: 18px; margin-bottom: 2.4rem; }
@media (min-width: 700px) { .stat-cards { grid-template-columns: repeat(3, 1fr); } }
.stat-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; display: flex; gap: 14px; align-items: center;
}
.stat-card .ico-circle {
  width: 44px; height: 44px; border-radius: 50%; background: var(--ink-900);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.stat-card .ico-circle svg { width: 22px; height: 22px; fill: var(--white); }
.stat-card strong { display: block; font-family: var(--font-display); font-size: 1.15rem; color: var(--text-dark); }
.stat-card span { font-size: 0.85rem; color: var(--text-mute); }

.week-strip {
  display: grid; gap: 10px; margin-bottom: 2.4rem;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 700px) { .week-strip { grid-template-columns: repeat(5, 1fr); } }
.week-chip {
  background: var(--ink-900); color: var(--on-ink);
  border-radius: 10px; padding: 16px 14px;
}
.week-chip.is-highlight { background: var(--amber); color: var(--ink-900); }
.week-chip .w { font-size: 0.72rem; letter-spacing: .08em; text-transform: uppercase; opacity: .8; }
.week-chip .m { font-weight: 700; margin-top: 4px; }

.dedication {
  background: var(--ink-900); color: var(--white);
  border-radius: var(--radius); padding: clamp(26px, 4vw, 40px);
}
.dedication .kicker { margin-bottom: 1.2rem; }
.dedication-sum {
  display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px;
}
.dedication-sum .figure { text-align: center; }
.dedication-sum .figure strong {
  display: block; font-family: var(--font-display); font-size: clamp(1.8rem, 1.4rem + 1.5vw, 2.6rem);
  color: var(--amber);
}
.dedication-sum .figure span { font-size: 0.82rem; color: var(--on-ink-mute); }
.dedication-sum .op { font-family: var(--font-display); font-size: 1.8rem; color: var(--on-ink-mute); }
.dedication p.note { margin-top: 1.6rem; font-style: italic; color: var(--on-ink); font-size: 0.95rem; }

/* ---------- tabla temario ---------- */
.curriculum-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
.curriculum-table { min-width: 640px; }
.curriculum-table th, .curriculum-table td {
  text-align: left; padding: 14px 18px; border-bottom: 1px solid var(--border); vertical-align: top;
}
.curriculum-table thead th {
  background: var(--ink-900); color: var(--white); font-family: var(--font-body);
  font-size: 0.78rem; letter-spacing: .08em; text-transform: uppercase;
}
.curriculum-table tbody tr:last-child td { border-bottom: none; }
.curriculum-table tbody tr.highlight td { background: rgba(232,162,61,.12); }
.curriculum-table .weeks { font-weight: 700; color: var(--ink-900); white-space: nowrap; }
.curriculum-table .module { font-weight: 700; color: var(--ink-900); }
.curriculum-note { margin-top: 1rem; font-size: 0.9rem; color: var(--text-mute); }

/* ---------- precios ---------- */
.price-grid { display: grid; gap: 24px; }
@media (min-width: 860px) { .price-grid { grid-template-columns: repeat(2, 1fr); } }
.price-card {
  background: var(--ink-700); border-radius: var(--radius);
  padding: clamp(26px, 3.4vw, 34px); position: relative;
  display: flex; flex-direction: column; gap: 20px;
}
.price-card.featured { outline: 2px solid var(--amber); }
.price-card .tag {
  position: absolute; top: -13px; left: 24px;
  background: var(--amber); color: var(--ink-900);
  font-size: 0.72rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
  padding: 6px 14px; border-radius: 999px;
}
.price-card h3 { color: var(--white); margin-bottom: 0.3em; }
.price-card .price-sub { color: var(--on-ink-mute); font-size: 0.92rem; margin: 0; }
.price-metrics { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.price-metrics .m { background: rgba(255,255,255,.06); border-radius: 8px; padding: 12px; text-align: center; }
.price-metrics .m strong { display: block; font-family: var(--font-display); font-size: 1.2rem; color: var(--amber); }
.price-metrics .m span { font-size: 0.75rem; color: var(--on-ink-mute); }
.price-card .amount { font-family: var(--font-display); font-size: 2.1rem; color: var(--white); }
.price-card .amount span { font-size: 0.95rem; font-family: var(--font-body); color: var(--on-ink-mute); font-weight: 400; }
.price-card ul.extra { list-style: none; margin: 0; padding: 0; font-size: 0.88rem; color: var(--on-ink-mute); }
.price-card ul.extra li { padding: 3px 0; }

.discount-table-wrap { margin-top: 2.4rem; overflow-x: auto; }
.discount-table { min-width: 480px; background: rgba(255,255,255,.04); border-radius: var(--radius); overflow: hidden; }
.discount-table th, .discount-table td { padding: 12px 18px; text-align: left; }
.discount-table thead th { background: rgba(255,255,255,.08); font-size: 0.78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--amber); }
.discount-table td { border-top: 1px solid rgba(255,255,255,.08); color: var(--on-ink); }
.discount-table .off { color: var(--amber); font-weight: 700; }

/* ---------- FAQ ---------- */
.faq-list { display: grid; gap: 12px; }
.faq-item {
  border: 1px solid var(--border); border-radius: 10px; background: var(--white);
}
.faq-item summary {
  cursor: pointer; padding: 18px 22px; font-weight: 700; color: var(--text-dark);
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; font-family: var(--font-display); font-size: 1.4rem; color: var(--amber); flex-shrink: 0;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item p { margin: 0; padding: 0 22px 20px; color: var(--text-body); }

/* ---------- contacto ---------- */
.contact-grid { display: grid; gap: 40px; }
@media (min-width: 900px) { .contact-grid { grid-template-columns: 1fr 1fr; } }
.contact-direct { display: grid; gap: 14px; margin-top: 1.6rem; }
.contact-direct a {
  display: flex; align-items: center; gap: 10px;
  color: var(--white); text-decoration: none; font-weight: 600;
}
.contact-direct svg { width: 18px; height: 18px; fill: var(--amber); }

form.contact-form { display: grid; gap: 16px; background: var(--white); border-radius: var(--radius); padding: clamp(22px, 3vw, 30px); }
.field { display: grid; gap: 6px; }
.field label { font-size: 0.85rem; font-weight: 600; color: var(--text-dark); }
.field input, .field select, .field textarea {
  font: inherit; padding: 12px 14px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--white); color: var(--text-dark);
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--amber); }
.field-row { display: grid; gap: 16px; }
@media (min-width: 560px) { .field-row.two { grid-template-columns: 1fr 1fr; } }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 0.85rem; color: var(--text-mute); }
.consent input { margin-top: 3px; }
.consent a { color: var(--ink-900); text-decoration: underline; }
.form-msg { font-size: 0.9rem; display: none; }
.form-msg.is-visible { display: block; }
.form-msg.error { color: #c0392b; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------- footer ---------- */
.site-footer { background: var(--ink-900); color: var(--on-ink-mute); padding: 40px 0 100px; }
.footer-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; align-items: center; }
.footer-links { display: flex; gap: 20px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.footer-links a { color: var(--on-ink-mute); text-decoration: none; font-size: 0.85rem; }
.footer-links a:hover { color: var(--amber); }
.footer-brand { font-family: var(--font-display); color: var(--white); font-weight: 700; }
.footer-copy { font-size: 0.8rem; margin-top: 6px; }

/* ---------- CTA fijo móvil ---------- */
.sticky-cta {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 150;
  background: var(--ink-900); border-top: 1px solid rgba(255,255,255,.1);
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  transform: translateY(110%);
  transition: transform .25s ease;
}
.sticky-cta.is-visible { transform: translateY(0); }
.sticky-cta .info { color: var(--on-ink); font-size: 0.82rem; line-height: 1.3; }
.sticky-cta .info strong { display: block; color: var(--white); font-size: 0.95rem; }
@media (min-width: 900px) { .sticky-cta { display: none !important; } }

/* ---------- generic simple pages (gracias / legales) ---------- */
.simple-page { min-height: 60vh; display: flex; align-items: center; }
.simple-page .container { max-width: 760px; }
.simple-page h1 { color: var(--text-dark); }
.legal-body h2 { font-size: 1.2rem; margin-top: 2rem; }
.legal-body p, .legal-body li { color: var(--text-body); }