/* =========================================================
   Guía de Agentes de IA — estilos
   ========================================================= */

:root {
  --blue: #0084ff;
  --blue-dark: #006ad1;
  --blue-soft: #e8f3ff;
  --ink: #0b1220;
  --ink-2: #3a4458;
  --ink-3: #6b7489;
  --line: #e3e8f0;
  --bg: #ffffff;
  --bg-alt: #f6f8fb;
  --card: #ffffff;
  --green: #12a150;
  --red: #e5484d;
  --chat-bg: #eef2f6;
  --bubble-in: #ffffff;
  --bubble-out: #d7ebff;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(11, 18, 32, .04), 0 8px 24px rgba(11, 18, 32, .06);
  --shadow-lg: 0 24px 60px rgba(0, 66, 140, .18);
  --header-h: 68px;
  --font: "Instrument Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --blue: #3d9eff;
    --blue-dark: #1f8bff;
    --blue-soft: #0f2340;
    --ink: #eef2f8;
    --ink-2: #c3cbd9;
    --ink-3: #8d97aa;
    --line: #232c3b;
    --bg: #0b1018;
    --bg-alt: #111823;
    --card: #141c28;
    --chat-bg: #0f1621;
    --bubble-in: #1b2433;
    --bubble-out: #12345a;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .3);
    --shadow-lg: 0 24px 60px rgba(0, 0, 0, .5);
  }
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 18px;
  line-height: 1.65;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--blue); text-decoration-thickness: 1px; text-underline-offset: 3px; }
h1, h2, h3 { color: var(--ink); line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 .5em; font-weight: 600; }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.6rem); letter-spacing: -0.035em; }
h2 { font-size: clamp(1.7rem, 3vw, 2.35rem); }
h3 { font-size: 1.15rem; letter-spacing: -0.01em; }
p { margin: 0 0 1.1em; }
strong { color: var(--ink); font-weight: 600; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 768px) { .container { padding: 0 32px; } }

:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; border-radius: 6px; }

/* ---------- Progreso de lectura ---------- */
.progress { position: fixed; inset: 0 0 auto 0; height: 3px; z-index: 60; }
.progress span { display: block; height: 100%; width: 0; background: var(--blue); transition: width .1s linear; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  background: var(--blue); color: #fff; font-weight: 600; text-decoration: none;
  padding: 14px 22px; border-radius: 999px; border: 0; cursor: pointer;
  font-size: 1rem; line-height: 1.2; text-align: center;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
  box-shadow: 0 6px 18px rgba(0, 132, 255, .28);
}
.btn:hover { background: var(--blue-dark); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(0, 132, 255, .35); }
.btn:active { transform: translateY(0); }
.btn-lg { padding: 18px 28px; font-size: 1.06rem; }
.btn-white { background: #fff; color: #0070de; box-shadow: 0 10px 30px rgba(0, 0, 0, .18); }
.btn-white:hover { background: #f1f7ff; }
.btn svg { transition: transform .2s ease; flex-shrink: 0; }
.btn:hover svg { transform: translateX(4px); }

/* ---------- Cabecera ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50; height: var(--header-h);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); text-decoration: none; font-size: 1rem; }
.logo-mark { width: 32px; height: 32px; border-radius: 9px; background: var(--blue); color: #fff; display: grid; place-items: center; }
.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a:not(.btn) { color: var(--ink-2); text-decoration: none; font-size: .95rem; font-weight: 500; }
.main-nav a:not(.btn):hover { color: var(--blue); }

.nav-toggle { display: none; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer; padding: 10px; }
.nav-toggle span { display: block; height: 2px; background: var(--ink); margin: 5px 0; border-radius: 2px; transition: transform .2s, opacity .2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: absolute; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--line);
    padding: 8px 16px 16px; display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav a:not(.btn) { padding: 14px 4px; border-bottom: 1px solid var(--line); }
}

/* ---------- Hero ---------- */
.hero {
  padding: 64px 0 80px;
  background:
    radial-gradient(900px 500px at 85% 10%, color-mix(in srgb, var(--blue) 16%, transparent), transparent 70%),
    radial-gradient(600px 400px at 0% 100%, color-mix(in srgb, var(--blue) 8%, transparent), transparent 70%),
    var(--bg);
  border-bottom: 1px solid var(--line);
}
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--blue); background: var(--blue-soft); padding: 6px 12px; border-radius: 999px; margin-bottom: 20px;
}
.lead { font-size: 1.2rem; color: var(--ink-2); max-width: 600px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 24px; margin: 30px 0 26px; }
.link-quiet { color: var(--ink-2); font-weight: 500; text-decoration: none; }
.link-quiet:hover { color: var(--blue); }
.hero-points { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: .92rem; color: var(--ink-3); }
.hero-points li::before { content: "✓"; color: var(--green); font-weight: 700; margin-right: 6px; }

/* Teléfono */
.hero-visual { display: flex; flex-direction: column; align-items: center; }
.phone {
  width: 100%; max-width: 360px; border-radius: 34px; background: var(--card);
  border: 8px solid #111827; box-shadow: var(--shadow-lg); overflow: hidden;
  transform: rotate(1.5deg);
}
.phone-top { display: flex; align-items: center; gap: 12px; padding: 14px 16px; background: var(--blue); color: #fff; }
.phone-top strong { color: #fff; display: block; font-size: .95rem; line-height: 1.2; }
.phone-top small { opacity: .85; font-size: .78rem; }
.avatar { width: 38px; height: 38px; border-radius: 50%; background: rgba(255, 255, 255, .22); display: grid; place-items: center; font-weight: 700; font-size: .85rem; }
.chat { background: var(--chat-bg); padding: 16px 12px 20px; display: flex; flex-direction: column; gap: 10px; min-height: 380px; }
.js .msg {
  max-width: 85%; padding: 9px 12px 18px; border-radius: 14px; font-size: .9rem; line-height: 1.45;
  color: var(--ink); position: relative; box-shadow: 0 1px 1px rgba(0, 0, 0, .06);
  opacity: 0; transform: translateY(8px); transition: opacity .4s ease, transform .4s ease;
}
.msg.show { opacity: 1; transform: none; }
.msg .time { position: absolute; right: 10px; bottom: 4px; font-size: .68rem; color: var(--ink-3); }
.msg.in { background: var(--bubble-in); align-self: flex-start; border-top-left-radius: 4px; }
.msg.out { background: var(--bubble-out); align-self: flex-end; border-top-right-radius: 4px; }
.msg.audio { display: flex; align-items: center; gap: 8px; min-width: 170px; padding-right: 54px; }
.wave {
  width: 90px; height: 18px; flex-shrink: 0;
  background: repeating-linear-gradient(90deg, var(--ink-3) 0 2px, transparent 2px 5px);
  -webkit-mask: radial-gradient(ellipse at center, #000 40%, transparent 72%);
  mask: radial-gradient(ellipse at center, #000 40%, transparent 72%);
}
.msg.note {
  align-self: center; max-width: 100%; background: color-mix(in srgb, var(--green) 14%, var(--card));
  color: var(--green); font-weight: 600; font-size: .8rem; padding: 8px 12px; text-align: center;
}
.visual-caption { font-size: .88rem; color: var(--ink-3); text-align: center; max-width: 320px; margin-top: 22px; }

@media (max-width: 960px) {
  .hero { padding: 40px 0 56px; }
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .phone { transform: none; }
}

/* ---------- Layout de contenido ---------- */
.content-grid { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 64px; padding-top: 64px; padding-bottom: 40px; }
.article { max-width: 780px; min-width: 0; }

.toc { position: sticky; top: calc(var(--header-h) + 24px); align-self: start; max-height: calc(100vh - var(--header-h) - 48px); overflow: auto; }
.toc-title { font-size: .78rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 12px; }
.toc ol { list-style: none; padding: 0; margin: 0; counter-reset: toc; border-left: 2px solid var(--line); }
.toc li { counter-increment: toc; }
.toc a {
  display: block; padding: 7px 0 7px 16px; margin-left: -2px; border-left: 2px solid transparent;
  color: var(--ink-3); text-decoration: none; font-size: .9rem; line-height: 1.35; transition: color .15s, border-color .15s;
}
.toc a::before { content: counter(toc, decimal-leading-zero) "  "; font-variant-numeric: tabular-nums; opacity: .6; white-space: pre; }
.toc a:hover { color: var(--ink); }
.toc a.active { color: var(--blue); border-left-color: var(--blue); font-weight: 600; }

@media (max-width: 1020px) {
  .content-grid { grid-template-columns: 1fr; gap: 0; padding-top: 40px; }
  .toc { position: static; max-height: none; background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-bottom: 48px; }
  .toc ol { columns: 2; column-gap: 24px; border-left: 0; }
  .toc a { padding-left: 0; border-left: 0; margin-left: 0; }
  .article { max-width: none; }
}
@media (max-width: 560px) { .toc ol { columns: 1; } }

/* ---------- Bloques ---------- */
.block { padding: 8px 0 64px; position: relative; }
.block + .block { border-top: 1px solid var(--line); padding-top: 64px; }
.section-num { display: block; font-size: .85rem; font-weight: 700; color: var(--blue); letter-spacing: .08em; margin-bottom: 10px; font-variant-numeric: tabular-nums; }

.definition {
  background: var(--blue-soft); border-left: 4px solid var(--blue); border-radius: 0 var(--radius) var(--radius) 0;
  padding: 22px 26px; margin: 28px 0;
}
.definition p { margin: 0; font-size: 1.1rem; color: var(--ink); }
.definition-label { font-size: .78rem !important; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--blue) !important; margin-bottom: 6px !important; }

.check-list, .x-list { list-style: none; padding: 0; margin: 0 0 1.2em; }
.check-list li, .x-list li { position: relative; padding-left: 34px; margin-bottom: 12px; }
.check-list li::before, .x-list li::before {
  position: absolute; left: 0; top: 3px; width: 22px; height: 22px; border-radius: 50%;
  display: grid; place-items: center; font-size: .75rem; font-weight: 700;
}
.check-list li::before { content: "✓"; background: color-mix(in srgb, var(--green) 15%, transparent); color: var(--green); }
.x-list li::before { content: "✕"; background: color-mix(in srgb, var(--red) 14%, transparent); color: var(--red); }

/* Tabla comparativa */
.table-wrap { overflow-x: auto; margin: 24px 0; border: 1px solid var(--line); border-radius: var(--radius); }
.compare { width: 100%; border-collapse: collapse; font-size: .95rem; min-width: 540px; }
.compare th, .compare td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.compare tbody tr:last-child th, .compare tbody tr:last-child td { border-bottom: 0; }
.compare thead th { background: var(--bg-alt); color: var(--ink); font-weight: 600; font-size: .85rem; text-transform: uppercase; letter-spacing: .05em; }
.compare thead th:last-child { background: var(--blue); color: #fff; }
.compare tbody th { color: var(--ink); font-weight: 600; white-space: nowrap; }
.compare td:nth-child(2) { color: var(--ink-3); }
.compare td:last-child { color: var(--ink); background: color-mix(in srgb, var(--blue) 5%, transparent); font-weight: 500; }
.note-text { font-size: 1.15rem; color: var(--ink); }

/* Pasos */
.steps { list-style: none; padding: 0; margin: 28px 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.steps li { display: flex; gap: 16px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.steps h3 { margin-bottom: 6px; }
.steps p { margin: 0; font-size: .95rem; }
.step-icon { font-size: 1.5rem; width: 48px; height: 48px; flex-shrink: 0; border-radius: 12px; background: var(--blue-soft); display: grid; place-items: center; }
@media (max-width: 640px) { .steps { grid-template-columns: 1fr; } }

/* Beneficios */
.benefits { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 28px 0 40px; }
.benefit {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.benefit:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--blue) 40%, var(--line)); }
.benefit-icon { font-size: 1.6rem; display: block; margin-bottom: 12px; }
.benefit h3 { margin-bottom: 6px; }
.benefit p { margin: 0; font-size: .95rem; }
@media (max-width: 640px) { .benefits { grid-template-columns: 1fr; } }

/* CTA intermedio */
.inline-cta {
  display: flex; align-items: center; justify-content: space-between; gap: 24px 32px; flex-wrap: wrap;
  background: linear-gradient(135deg, var(--blue) 0%, #0062d6 100%); color: #e6f2ff;
  border-radius: 22px; padding: 32px; box-shadow: var(--shadow-lg);
}
.inline-cta > div { flex: 1 1 280px; }
.inline-cta p { margin: 0; }
.inline-cta-title { color: #fff; font-size: 1.35rem; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 6px !important; line-height: 1.25; }
.inline-cta .btn { background: #fff; color: #0070de; box-shadow: 0 8px 20px rgba(0, 0, 0, .15); }
.inline-cta .btn:hover { background: #f1f7ff; }
@media (max-width: 560px) { .inline-cta { padding: 24px; } .inline-cta .btn { width: 100%; } }

/* Calculadora */
.calc {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 0; margin-top: 28px;
  border: 1px solid var(--line); border-radius: 22px; overflow: hidden; box-shadow: var(--shadow); background: var(--card);
}
.calc-inputs { padding: 28px; display: flex; flex-direction: column; gap: 24px; }
.field { display: block; }
.field > span { display: block; font-size: .92rem; font-weight: 600; color: var(--ink); margin-bottom: 10px; line-height: 1.35; }
.range-row { display: flex; align-items: center; gap: 14px; }
.range-row output { min-width: 52px; text-align: right; font-weight: 700; color: var(--blue); font-variant-numeric: tabular-nums; }
input[type="range"] {
  -webkit-appearance: none; appearance: none; flex: 1; height: 6px; border-radius: 999px; cursor: pointer;
  background: linear-gradient(to right, var(--blue) var(--fill, 50%), var(--line) var(--fill, 50%));
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%; background: #fff;
  border: 3px solid var(--blue); box-shadow: 0 2px 6px rgba(0, 0, 0, .2);
}
input[type="range"]::-moz-range-thumb { width: 18px; height: 18px; border-radius: 50%; background: #fff; border: 3px solid var(--blue); }
.money-input { display: flex; align-items: center; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--bg); overflow: hidden; max-width: 220px; }
.money-input span { padding: 0 12px; color: var(--ink-3); font-weight: 600; }
.money-input input { border: 0; background: transparent; padding: 12px 12px 12px 0; font: inherit; font-weight: 600; color: var(--ink); width: 100%; }
.money-input input:focus { outline: none; }
.money-input:focus-within { border-color: var(--blue); box-shadow: 0 0 0 3px color-mix(in srgb, var(--blue) 25%, transparent); }

.calc-results { background: var(--ink); color: #c9d3e3; padding: 28px; display: flex; flex-direction: column; gap: 18px; justify-content: center; }
@media (prefers-color-scheme: dark) { .calc-results { background: #060a10; } }
.result { display: flex; flex-direction: column; border-bottom: 1px solid rgba(255, 255, 255, .1); padding-bottom: 14px; }
.result-label { font-size: .85rem; }
.result-value { font-size: 1.9rem; font-weight: 700; color: #fff; font-variant-numeric: tabular-nums; letter-spacing: -0.02em; line-height: 1.2; }
.result-main { border-bottom: 0; padding-bottom: 0; }
.result-main .result-value { font-size: 2.6rem; color: #6cb8ff; }
.result-sub { font-size: .9rem; color: #9fb0c8; }
.calc-disclaimer { font-size: .78rem; color: #8090a8; margin: 0; }
@media (max-width: 760px) { .calc { grid-template-columns: 1fr; } .calc-inputs, .calc-results { padding: 22px; } }

/* Tabs */
.tabs { margin-top: 24px; }
.tab-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.tab-list button {
  font: inherit; font-size: .9rem; font-weight: 600; padding: 10px 16px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line); background: var(--card); color: var(--ink-2); transition: all .15s;
}
.tab-list button:hover { border-color: var(--blue); color: var(--blue); }
.tab-list button[aria-selected="true"] { background: var(--blue); border-color: var(--blue); color: #fff; }
.tab-panel { background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; animation: fadeIn .3s ease; }
.tab-panel .check-list { margin: 0; }
.tab-panel .check-list li:last-child { margin-bottom: 0; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (max-width: 560px) {
  .tab-list { flex-wrap: nowrap; overflow-x: auto; margin: 0 -16px 20px; padding: 0 16px 6px; scrollbar-width: none; }
  .tab-list::-webkit-scrollbar { display: none; }
  .tab-list button { flex-shrink: 0; }
  .tab-panel { padding: 22px; }
}

/* Mitos */
.myths { display: flex; flex-direction: column; gap: 14px; margin-top: 24px; }
.myth { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--card); }
.myth p { margin: 0; padding: 16px 22px; }
.myth span {
  display: inline-block; font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em;
  padding: 3px 9px; border-radius: 6px; margin-right: 10px; vertical-align: 2px;
}
.myth-false { color: var(--ink-3); text-decoration: line-through; text-decoration-color: color-mix(in srgb, var(--red) 50%, transparent); background: var(--bg-alt); }
.myth-false span { background: color-mix(in srgb, var(--red) 14%, transparent); color: var(--red); text-decoration: none; }
.myth-true { color: var(--ink); }
.myth-true span { background: color-mix(in srgb, var(--green) 15%, transparent); color: var(--green); }

/* Timeline */
.timeline { list-style: none; padding: 0; margin: 28px 0 0; counter-reset: tl; }
.timeline li { position: relative; padding: 0 0 30px 64px; counter-increment: tl; }
.timeline li::before {
  content: counter(tl); position: absolute; left: 0; top: -4px; width: 42px; height: 42px; border-radius: 50%;
  background: var(--blue); color: #fff; font-weight: 700; display: grid; place-items: center;
  box-shadow: 0 0 0 6px var(--blue-soft);
}
.timeline li::after { content: ""; position: absolute; left: 20px; top: 46px; bottom: 4px; width: 2px; background: var(--line); }
.timeline li:last-child { padding-bottom: 0; }
.timeline li:last-child::after { display: none; }
.timeline h3 { margin-bottom: 6px; padding-top: 4px; }
.timeline p { margin: 0; }

/* Checklist */
.checklist { list-style: none; padding: 0; margin: 24px 0 16px; display: grid; gap: 10px; }
.checklist label {
  display: flex; gap: 14px; align-items: flex-start; cursor: pointer; padding: 14px 18px;
  border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--card); transition: border-color .15s, background .15s;
}
.checklist label:hover { border-color: var(--blue); }
.checklist input { width: 20px; height: 20px; accent-color: var(--blue); margin-top: 4px; flex-shrink: 0; cursor: pointer; }
.checklist label:has(input:checked) { background: var(--blue-soft); border-color: var(--blue); color: var(--ink); }
.checklist-score { font-weight: 600; color: var(--blue); }

/* Métricas */
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 24px; }
.metric { border-top: 3px solid var(--blue); background: var(--bg-alt); border-radius: 0 0 var(--radius-sm) var(--radius-sm); padding: 20px; }
.metric h3 { font-size: 1.02rem; margin-bottom: 6px; }
.metric p { margin: 0; font-size: .92rem; }
@media (max-width: 860px) { .metrics { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .metrics { grid-template-columns: 1fr; } }

/* FAQ */
.faq { margin-top: 24px; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; padding: 20px 44px 20px 0; position: relative;
  font-weight: 600; color: var(--ink); font-size: 1.05rem; line-height: 1.4;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  width: 30px; height: 30px; border-radius: 50%; background: var(--blue-soft); color: var(--blue);
  display: grid; place-items: center; font-size: 1.2rem; font-weight: 500; transition: transform .2s;
}
.faq details[open] summary::after { content: "−"; }
.faq summary:hover { color: var(--blue); }
.faq details p { padding: 0 44px 20px 0; margin: 0; }

/* ---------- CTA final ---------- */
.final-cta {
  background:
    radial-gradient(700px 400px at 90% 0%, rgba(255, 255, 255, .18), transparent 70%),
    linear-gradient(135deg, #0084ff 0%, #0058c4 100%);
  color: #dcebff; padding: 96px 0; text-align: center; margin-top: 40px;
}
.final-inner { max-width: 820px; }
.final-cta h2 { color: #fff; font-size: clamp(2rem, 4.2vw, 3.1rem); letter-spacing: -0.03em; }
.final-cta p { font-size: 1.15rem; max-width: 620px; margin-left: auto; margin-right: auto; }
.eyebrow-light { background: rgba(255, 255, 255, .16); color: #fff; }
.final-cta .btn { margin-top: 14px; }
.final-small { font-size: .9rem !important; margin-top: 18px; opacity: .85; }
@media (max-width: 560px) { .final-cta { padding: 64px 0; } .final-cta .btn { width: 100%; } }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 28px 0; font-size: .88rem; color: var(--ink-3); }
.footer-inner { display: flex; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap; }
.footer-inner p { margin: 0; }
.footer-inner a { color: var(--ink-3); text-decoration: none; }
.footer-inner a:hover { color: var(--blue); }

/* ---------- Animaciones de entrada ---------- */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal, .js .msg { opacity: 1 !important; transform: none !important; }
}

@media (max-width: 560px) {
  body { font-size: 17px; }
  .hero-actions .btn { width: 100%; }
  .block { padding-bottom: 48px; }
  .block + .block { padding-top: 48px; }
}

/* ---------- Secciones de wiki ---------- */
.sub-h { margin-top: 36px; }
.metrics-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 520px) { .metrics-2 { grid-template-columns: 1fr; } }

.compare-neutral thead th:last-child { background: var(--bg-alt); color: var(--ink); }
.compare-neutral td:nth-child(2), .compare-neutral td:last-child { color: var(--ink-2); background: none; font-weight: 400; }

.glossary { margin: 24px 0 0; display: grid; gap: 0; border-top: 1px solid var(--line); }
.glossary > div { display: grid; grid-template-columns: 240px 1fr; gap: 4px 24px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.glossary dt { color: var(--ink); font-weight: 600; line-height: 1.4; scroll-margin-top: calc(var(--header-h) + 16px); }
.glossary dd { margin: 0; font-size: .95rem; }
@media (max-width: 640px) { .glossary > div { grid-template-columns: 1fr; } }

.sources { padding-left: 1.2em; margin: 16px 0 0; }
.sources li { margin-bottom: 10px; font-size: .95rem; }