/* BotiChat — estilos del sitio. Sin fuentes externas ni dependencias. */

:root {
  --bg: #f5f8fc;
  --surface: #ffffff;
  --ink: #0f2140;
  --muted: #4a5a73;
  --line: #dbe4f0;
  --brand: #1d5fc4;
  --brand-ink: #154a9c;
  --brand-soft: #e2eefc;
  --accent: #f5c518;
  --bubble-client: #dcecff;
  --mark-bg: #fff3c4;
  --mark-ink: #5c4300;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(15, 33, 64, .06), 0 8px 24px rgba(15, 33, 64, .07);
  --max: 1080px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1426;
    --surface: #12203a;
    --ink: #e8eef8;
    --muted: #a6b4cc;
    --line: #24365a;
    --brand: #5fb4ff;
    --brand-ink: #9fd0ff;
    --brand-soft: #16325c;
    --bubble-client: #1b3a66;
    --mark-bg: #4a3a0a;
    --mark-ink: #ffe9a6;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  }
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
}

img, svg { display: block; max-width: 100%; }

a { color: var(--brand-ink); text-underline-offset: .18em; }
a:hover { color: var(--brand); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.contenedor { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .contenedor { padding: 0 28px; } }

.saltar {
  position: absolute; left: -9999px; top: 8px;
  background: var(--surface); padding: 8px 12px; border-radius: 8px; z-index: 10;
}
.saltar:focus { left: 8px; }

/* ---------- Encabezado ---------- */
.encabezado {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  position: sticky; top: 0; z-index: 5;
  backdrop-filter: saturate(1.2) blur(8px);
}
.encabezado .contenedor {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; min-height: 64px; flex-wrap: wrap;
}
.marca {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--ink); text-decoration: none; font-weight: 750; font-size: 1.2rem;
  letter-spacing: -.01em;
}
.marca:hover { color: var(--ink); }
.marca svg { width: 34px; height: 34px; }
.marca-logo { height: 36px; width: auto; }

.nav { display: flex; gap: 4px 18px; flex-wrap: wrap; font-size: .95rem; }
.nav a { color: var(--muted); text-decoration: none; padding: 10px 0; }
.nav a:hover { color: var(--ink); }
@media (max-width: 560px) { .nav .solo-ancho { display: none; } }

/* ---------- Botones ---------- */
.boton {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 12px 22px; border-radius: 999px;
  background: var(--brand); color: #fff; font-weight: 650; text-decoration: none;
  transition: background-color .2s ease, transform .2s ease;
}
@media (prefers-color-scheme: dark) { .boton { color: #08203f; } }
.boton:hover { background: var(--brand-ink); color: #fff; }
@media (prefers-color-scheme: dark) { .boton:hover { color: #08203f; } }
.boton-sec {
  background: transparent; color: var(--ink); border: 1px solid var(--line);
}
.boton-sec:hover { background: var(--surface); color: var(--ink); }

/* ---------- Portada ---------- */
.portada { padding: 48px 0 40px; }
.portada .contenedor { display: grid; gap: 40px; align-items: center; }
@media (min-width: 900px) {
  .portada { padding: 80px 0 72px; }
  .portada .contenedor { grid-template-columns: 1.1fr .9fr; gap: 56px; }
}
.etiqueta {
  display: inline-block; font-size: .85rem; font-weight: 650; color: var(--brand-ink);
  background: var(--brand-soft); padding: 4px 12px; border-radius: 999px; margin-bottom: 18px;
}
h1, h2, h3 { line-height: 1.15; letter-spacing: -.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 6vw, 3.3rem); font-weight: 800; }
h2 { font-size: clamp(1.55rem, 3.6vw, 2.15rem); font-weight: 760; }
h3 { font-size: 1.15rem; font-weight: 700; letter-spacing: -.01em; }
.bajada { font-size: 1.15rem; color: var(--muted); max-width: 36em; margin: 0 0 28px; }
.acciones { display: flex; flex-wrap: wrap; gap: 12px; }

/* Maqueta de chat (solo ilustrativa) */
.chat {
  background: var(--surface); border: 1px solid var(--line); border-radius: 22px;
  box-shadow: var(--shadow); padding: 18px; max-width: 420px; width: 100%; justify-self: center;
}
.chat-cabecera {
  display: flex; align-items: center; gap: 10px; padding-bottom: 14px; margin-bottom: 14px;
  border-bottom: 1px solid var(--line); font-size: .95rem;
}
.chat-cabecera svg { width: 30px; height: 30px; }
.chat-cabecera small { display: block; color: var(--muted); font-size: .8rem; }
.msj {
  max-width: 85%; padding: 10px 14px; border-radius: 16px; margin: 0 0 10px;
  font-size: .95rem; line-height: 1.45;
}
.msj-cliente { margin-left: auto; background: var(--bubble-client); border-bottom-right-radius: 4px; }
.msj-boti { background: var(--bg); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.msj-aviso {
  text-align: center; font-size: .8rem; color: var(--muted); margin: 14px 0 0;
  display: flex; align-items: center; gap: 8px;
}
.msj-aviso::before, .msj-aviso::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.chat-pie { font-size: .75rem; color: var(--muted); text-align: center; margin: 12px 0 0; }

/* ---------- Secciones ---------- */
.seccion { padding: 56px 0; }
@media (min-width: 900px) { .seccion { padding: 80px 0; } }
.seccion-alt { background: var(--surface); border-block: 1px solid var(--line); }
.seccion-intro { max-width: 40em; margin-bottom: 32px; color: var(--muted); }
.seccion-intro h2 { color: var(--ink); }

.grilla { display: grid; gap: 16px; }
@media (min-width: 720px) { .grilla-3 { grid-template-columns: repeat(3, 1fr); gap: 20px; } }
@media (min-width: 720px) { .grilla-2 { grid-template-columns: repeat(2, 1fr); gap: 20px; } }

.tarjeta {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px;
}
.seccion-alt .tarjeta { background: var(--bg); }
.tarjeta p { margin: 0; color: var(--muted); }
.icono {
  width: 44px; height: 44px; border-radius: 12px; background: var(--brand-soft); color: var(--brand-ink);
  display: grid; place-items: center; margin-bottom: 14px;
}
.icono svg { width: 22px; height: 22px; }

.pasos { counter-reset: paso; list-style: none; padding: 0; margin: 0; }
.pasos li { counter-increment: paso; position: relative; padding-top: 56px; }
.pasos li::before {
  content: counter(paso); position: absolute; top: 22px; left: 22px;
  width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center;
  background: var(--brand); color: #fff; font-weight: 750;
}
@media (prefers-color-scheme: dark) { .pasos li::before { color: #08203f; } }

.lista-check { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.lista-check li { padding-left: 32px; position: relative; }
.lista-check li::before {
  content: ""; position: absolute; left: 0; top: .3em; width: 20px; height: 20px; border-radius: 50%;
  background: var(--brand-soft);
  border: 2px solid var(--brand);
}

.contacto { display: grid; gap: 16px; }
.contacto { grid-template-columns: repeat(auto-fit, minmax(260px, 420px)); }
.contacto .tarjeta { display: flex; flex-direction: column; gap: 6px; }
.contacto strong { font-size: 1.05rem; word-break: break-word; }

/* ---------- Páginas de texto (legales) ---------- */
.legal { padding: 40px 0 64px; }
.legal .contenedor { max-width: 760px; }
.legal h1 { font-size: clamp(1.8rem, 5vw, 2.5rem); }
.legal h2 { font-size: 1.3rem; margin-top: 2.2em; padding-top: .2em; }
.legal h3 { margin-top: 1.4em; }
.legal p, .legal li { color: var(--ink); }
.legal ul, .legal ol { padding-left: 1.3em; }
.legal li { margin-bottom: .4em; }
.fecha { color: var(--muted); margin-top: -.2em; }
.indice {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 22px; margin: 24px 0;
}
.indice ol { margin: 8px 0 0; }
.tabla-scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
th, td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--line); }
th { font-weight: 700; background: var(--surface); }

/* Notas y marcadores para completar o revisar (se quitan antes de la versión final) */
.nota {
  border-left: 4px solid var(--accent); background: var(--surface); border-radius: 8px;
  padding: 14px 18px; margin: 20px 0; color: var(--muted);
}
.marcador {
  background: var(--mark-bg); color: var(--mark-ink); font-weight: 700;
  padding: 1px 6px; border-radius: 4px; font-family: ui-monospace, Consolas, monospace; font-size: .9em;
}
.revisar {
  border: 2px dashed var(--accent); background: var(--mark-bg); color: var(--mark-ink);
  border-radius: 10px; padding: 14px 18px; margin: 18px 0;
}
.revisar p { color: inherit; margin: .4em 0; }

/* ---------- Pie ---------- */
.pie { border-top: 1px solid var(--line); padding: 36px 0 44px; font-size: .92rem; color: var(--muted); }
.pie .contenedor { display: grid; gap: 22px; }
@media (min-width: 720px) { .pie .contenedor { grid-template-columns: 1.4fr 1fr; } }
.pie p { margin: 0 0 6px; }
.pie a { color: var(--muted); }
.pie a:hover { color: var(--ink); }
.pie-links { display: flex; flex-direction: column; gap: 6px; }
@media (min-width: 720px) { .pie-links { align-items: flex-end; } }
.pie-legal { grid-column: 1 / -1; font-size: .82rem; border-top: 1px solid var(--line); padding-top: 18px; }

/* ---------- 404 ---------- */
.error { padding: 96px 0; text-align: center; }
.error .acciones { justify-content: center; }

.boti-foto {
  width: 100%; max-width: 240px; height: auto; border-radius: 50%;
  box-shadow: var(--shadow); margin: 8px 0 24px;
}