/* PropertiesVisa — hoja de estilos principal
   Sistema: tokens → base → layout → componentes → utilidades
   Mobile-first. Sin dependencias externas. */

:root {
  /* Paleta sobria y profesional */
  --ink: #0f1b2d;          /* texto principal */
  --ink-2: #44515f;        /* texto secundario */
  --navy: #12355b;         /* marca / encabezados */
  --navy-900: #0b2340;     /* fondos oscuros */
  --teal: #1f7a74;         /* acción principal */
  --teal-700: #17615c;     /* hover acción */
  --gold: #b8893b;         /* acento puntual (detalles, nunca texto largo) */
  --sand: #f6f3ee;         /* fondo de sección alterna */
  --mist: #eef3f7;         /* fondo informativo */
  --line: #e1e5ea;         /* bordes */
  --white: #ffffff;
  --warn-bg: #fff5e0;
  --warn-ink: #7a4b00;

  /* Tipografía: serif editorial para títulos, sans del sistema para lectura */
  --font-head: "Source Serif 4", "Source Serif Pro", Georgia, "Times New Roman", serif;
  --font-body: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Escala fluida (móvil → escritorio) */
  --fs-xs: .8125rem;
  --fs-sm: .9375rem;
  --fs-base: 1.0625rem;
  --fs-lg: clamp(1.125rem, 1.05rem + .3vw, 1.25rem);
  --fs-h3: clamp(1.2rem, 1.1rem + .5vw, 1.4rem);
  --fs-h2: clamp(1.6rem, 1.3rem + 1.2vw, 2.25rem);
  --fs-h1: clamp(2.1rem, 1.6rem + 2.4vw, 3.5rem);

  /* Espaciado generoso */
  --s-1: .25rem; --s-2: .5rem; --s-3: .75rem; --s-4: 1rem; --s-5: 1.5rem;
  --s-6: 2rem; --s-7: 3rem; --s-8: 4.5rem; --s-9: 6.5rem;

  --radius: 10px;
  --radius-lg: 18px;
  --shadow: 0 1px 2px rgba(15, 27, 45, .06), 0 8px 24px rgba(15, 27, 45, .06);
  --container: 1180px;
  --measure: 70ch;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--white); color: var(--ink);
  font-family: var(--font-body); font-size: var(--fs-base); line-height: 1.65;
  text-rendering: optimizeLegibility;
}
img, picture, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--teal-700); text-underline-offset: .18em; }
a:hover { color: var(--navy); }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3, h4 { font-family: var(--font-head); color: var(--navy); line-height: 1.2; margin: 0 0 var(--s-4); font-weight: 650; }
h1 { font-size: var(--fs-h1); letter-spacing: -.01em; }
h2 { font-size: var(--fs-h2); margin-top: var(--s-2); }
h3 { font-size: var(--fs-h3); }
p { margin: 0 0 var(--s-4); }
ul, ol { padding-left: 1.25rem; margin: 0 0 var(--s-4); }
li { margin-bottom: var(--s-2); }
.lead { font-size: var(--fs-lg); color: var(--ink-2); max-width: 62ch; }
.eyebrow { font-size: var(--fs-xs); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--teal); margin-bottom: var(--s-3); display: inline-block; }
.skip-link { position: absolute; left: -999px; top: 0; background: var(--navy); color: #fff; padding: .6rem 1rem; z-index: 100; }
.skip-link:focus { left: 1rem; top: 1rem; }

/* ---------- Layout ---------- */
.container { width: min(100% - 2rem, var(--container)); margin-inline: auto; }
.section { padding-block: var(--s-8); }
.section--sand { background: var(--sand); }
.section--mist { background: var(--mist); }
.section--dark { background: var(--navy-900); color: #dfe7ef; }
.section--dark h2, .section--dark h3 { color: #fff; }
.section__head { max-width: 720px; margin-bottom: var(--s-6); }
.grid { display: grid; gap: var(--s-5); }
@media (min-width: 720px) { .grid--2 { grid-template-columns: repeat(2, 1fr); } .grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .grid--3 { grid-template-columns: repeat(3, 1fr); } .grid--4 { grid-template-columns: repeat(4, 1fr); } }
.prose { max-width: var(--measure); }
.prose h2 { margin-top: var(--s-7); }
.prose h3 { margin-top: var(--s-6); }
.layout-article { display: grid; gap: var(--s-7); }
@media (min-width: 1000px) { .layout-article { grid-template-columns: minmax(0, 1fr) 320px; } }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); backdrop-filter: saturate(1.2) blur(8px); border-bottom: 1px solid var(--line); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); min-height: 72px; }
.brand { display: inline-flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--navy); font-family: var(--font-head); font-weight: 700; font-size: 1.25rem; }
.brand img { width: 34px; height: 34px; }
.nav { display: none; }
.nav ul { list-style: none; display: flex; gap: var(--s-5); margin: 0; padding: 0; }
.nav li { margin: 0; }
.nav a { text-decoration: none; color: var(--ink); font-weight: 550; font-size: var(--fs-sm); padding: .4rem 0; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--navy); border-bottom-color: var(--gold); }
.header-actions { display: flex; align-items: center; gap: var(--s-3); }
.lang-switch { font-size: var(--fs-xs); font-weight: 700; letter-spacing: .06em; text-decoration: none; color: var(--navy); border: 1px solid var(--line); border-radius: 999px; padding: .35rem .7rem; }
.lang-switch:hover { border-color: var(--navy); }
.header-cta { display: none; }
.nav-toggle { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; cursor: pointer; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { display: block; width: 20px; height: 2px; background: var(--navy); position: relative; content: ""; transition: transform .2s; }
.nav-toggle span::before { position: absolute; top: -6px; } .nav-toggle span::after { position: absolute; top: 6px; }
.nav.is-open { display: block; position: absolute; inset: 72px 0 auto 0; background: #fff; border-bottom: 1px solid var(--line); padding: var(--s-4) 1rem var(--s-5); box-shadow: var(--shadow); }
.nav.is-open ul { flex-direction: column; gap: var(--s-3); }
@media (min-width: 1040px) {
  .nav, .nav.is-open { display: block; position: static; box-shadow: none; border: 0; padding: 0; }
  .nav.is-open ul { flex-direction: row; }
  .nav-toggle { display: none; }
  .header-cta { display: inline-flex; }
}

/* ---------- Botones ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; min-height: 48px; padding: .75rem 1.35rem; border-radius: var(--radius); font-weight: 650; font-size: var(--fs-sm); text-decoration: none; border: 2px solid transparent; cursor: pointer; transition: background .15s, color .15s, border-color .15s; font-family: var(--font-body); }
.btn--primary { background: var(--teal); color: #fff; }
.btn--primary:hover { background: var(--teal-700); color: #fff; }
.btn--secondary { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn--secondary:hover { background: var(--navy); color: #fff; }
.btn--light { background: #fff; color: var(--navy); }
.btn--light:hover { background: var(--sand); color: var(--navy); }
.btn--sm { min-height: 40px; padding: .5rem 1rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-5); }

/* ---------- Hero ---------- */
.hero { position: relative; padding-block: var(--s-7) var(--s-8); background: linear-gradient(180deg, var(--sand), #fff); overflow: hidden; }
.hero__grid { display: grid; gap: var(--s-6); align-items: center; }
@media (min-width: 960px) { .hero__grid { grid-template-columns: 1.05fr .95fr; } }
.hero__media img { border-radius: var(--radius-lg); box-shadow: var(--shadow); aspect-ratio: 16 / 11; object-fit: cover; width: 100%; }
.hero--page { padding-block: var(--s-6) var(--s-6); }
.hero--page h1 { font-size: clamp(1.9rem, 1.5rem + 1.8vw, 2.8rem); }

/* ---------- Barra de confianza ---------- */
.trust { display: grid; gap: var(--s-4); grid-template-columns: repeat(2, 1fr); margin-top: var(--s-6); padding: 0; list-style: none; }
@media (min-width: 900px) { .trust { grid-template-columns: repeat(4, 1fr); } }
.trust li { margin: 0; font-size: var(--fs-sm); color: var(--ink-2); border-left: 3px solid var(--gold); padding-left: var(--s-3); line-height: 1.4; }
.trust strong { display: block; color: var(--navy); font-size: var(--fs-base); }

/* ---------- Tarjetas ---------- */
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: var(--s-5); display: flex; flex-direction: column; gap: var(--s-3); height: 100%; }
.card img { border-radius: var(--radius); aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.card h3 { margin: var(--s-2) 0 0; }
.card p { color: var(--ink-2); margin: 0; }
.card .card__link { margin-top: auto; font-weight: 650; text-decoration: none; }
.card .card__link::after { content: " →"; }
.card--plain { background: transparent; border: 0; padding: 0; }

/* ---------- Pasos ---------- */
.steps { counter-reset: step; list-style: none; padding: 0; display: grid; gap: var(--s-5); }
@media (min-width: 900px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.steps li { counter-increment: step; position: relative; padding-top: var(--s-7); margin: 0; }
.steps li::before { content: counter(step, decimal-leading-zero); position: absolute; top: 0; left: 0; font-family: var(--font-head); font-size: 2rem; color: var(--gold); font-weight: 700; }
.steps h3 { font-size: 1.15rem; margin-bottom: var(--s-2); }
.steps p { color: var(--ink-2); font-size: var(--fs-sm); margin: 0; }
.section--dark .steps p { color: #c5d2df; }

/* ---------- Cajas informativas ---------- */
.callout { border-radius: var(--radius); padding: var(--s-4) var(--s-5); background: var(--mist); border-left: 4px solid var(--navy); margin: var(--s-5) 0; }
.callout--warn { background: var(--warn-bg); border-left-color: var(--gold); color: var(--warn-ink); }
.callout p:last-child { margin: 0; }
.verify { background: var(--warn-bg); color: var(--warn-ink); border: 1px dashed var(--gold); border-radius: 6px; padding: 0 .35rem; font-size: .92em; font-weight: 600; white-space: normal; }
.keyfacts { border: 1px solid var(--line); border-radius: var(--radius-lg); padding: var(--s-5); background: #fff; box-shadow: var(--shadow); margin-bottom: var(--s-6); }
.keyfacts h2 { font-size: 1.25rem; margin: 0 0 var(--s-3); }
.keyfacts dl { display: grid; grid-template-columns: minmax(130px, 38%) 1fr; gap: var(--s-2) var(--s-4); margin: 0; font-size: var(--fs-sm); }
.keyfacts dt { font-weight: 700; color: var(--navy); }
.keyfacts dd { margin: 0; }

/* ---------- Tablas ---------- */
.table-wrap { overflow-x: auto; margin: var(--s-5) 0; border: 1px solid var(--line); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: var(--fs-sm); min-width: 520px; }
th, td { text-align: left; padding: .75rem 1rem; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { background: var(--navy); color: #fff; font-weight: 650; }
tbody tr:nth-child(even) { background: #fafbfc; }

/* ---------- Autor / E-E-A-T ---------- */
.meta-line { display: flex; flex-wrap: wrap; gap: var(--s-2) var(--s-5); font-size: var(--fs-xs); color: var(--ink-2); margin-top: var(--s-4); }
.meta-line strong { color: var(--ink); }
.author-box { display: grid; grid-template-columns: 88px 1fr; gap: var(--s-4); align-items: start; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: var(--s-5); background: #fff; margin-top: var(--s-7); }
.author-box img { width: 88px; height: 88px; border-radius: 50%; object-fit: cover; }
.author-box h2, .author-box h3 { font-size: 1.1rem; margin: 0 0 var(--s-1); }
.author-box p { font-size: var(--fs-sm); color: var(--ink-2); margin: 0 0 var(--s-2); }
.sources { font-size: var(--fs-sm); }
.sources li { margin-bottom: var(--s-2); }

/* ---------- Aside ---------- */
.aside-sticky { position: sticky; top: 96px; display: grid; gap: var(--s-5); }
.toc { border: 1px solid var(--line); border-radius: var(--radius-lg); padding: var(--s-5); font-size: var(--fs-sm); }
.toc h2 { font-size: 1rem; margin-bottom: var(--s-3); font-family: var(--font-body); }
.toc ol { margin: 0; padding-left: 1.1rem; }
.cta-box { background: var(--navy-900); color: #dfe7ef; border-radius: var(--radius-lg); padding: var(--s-5); }
.cta-box h2, .cta-box h3 { color: #fff; font-size: 1.2rem; }
.cta-box p { font-size: var(--fs-sm); }

/* ---------- CTA banda ---------- */
.cta-band { background: linear-gradient(120deg, var(--navy-900), var(--navy)); color: #dfe7ef; border-radius: var(--radius-lg); padding: var(--s-7) var(--s-6); display: grid; gap: var(--s-5); align-items: center; }
@media (min-width: 900px) { .cta-band { grid-template-columns: 1.4fr auto; } }
.cta-band h2 { color: #fff; margin-bottom: var(--s-2); }
.cta-band p { margin: 0; }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: var(--s-3); max-width: 860px; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.faq summary { cursor: pointer; list-style: none; padding: var(--s-4) var(--s-5); font-weight: 650; color: var(--navy); display: flex; justify-content: space-between; gap: var(--s-4); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; line-height: 1; color: var(--teal); }
.faq details[open] summary::after { content: "–"; }
.faq .faq__a { padding: 0 var(--s-5) var(--s-4); color: var(--ink-2); }
.faq-group h2 { margin-top: var(--s-7); }

/* ---------- Formularios ---------- */
.form { display: grid; gap: var(--s-4); background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: var(--s-6); box-shadow: var(--shadow); }
.form__row { display: grid; gap: var(--s-4); }
@media (min-width: 720px) { .form__row--2 { grid-template-columns: 1fr 1fr; } }
.field { display: grid; gap: var(--s-1); }
.field label { font-weight: 650; font-size: var(--fs-sm); color: var(--navy); }
.field .hint { font-size: var(--fs-xs); color: var(--ink-2); }
input, select, textarea { font: inherit; font-size: 1rem; padding: .75rem .9rem; border: 1px solid #c9d1da; border-radius: var(--radius); background: #fff; color: var(--ink); width: 100%; }
input:focus, select:focus, textarea:focus { border-color: var(--teal); outline: 2px solid rgba(31,122,116,.25); }
textarea { min-height: 130px; resize: vertical; }
.check { display: flex; gap: var(--s-3); align-items: flex-start; font-size: var(--fs-sm); }
.check input { width: 20px; height: 20px; margin-top: 3px; flex: none; }
.field-error { color: #a12a2a; font-size: var(--fs-xs); min-height: 1em; }
.form-status { font-size: var(--fs-sm); padding: var(--s-3) var(--s-4); border-radius: var(--radius); display: none; }
.form-status.is-ok { display: block; background: #e5f4ee; color: #135c41; }
.form-status.is-error { display: block; background: #fbeaea; color: #8a1f1f; }
.hp { position: absolute !important; left: -10000px !important; width: 1px; height: 1px; overflow: hidden; }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs { font-size: var(--fs-xs); color: var(--ink-2); margin-bottom: var(--s-4); }
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; padding: 0; margin: 0; }
.breadcrumbs li { margin: 0; }
.breadcrumbs li + li::before { content: "/"; margin-right: .4rem; color: #9aa6b2; }
.breadcrumbs a { color: var(--ink-2); }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-900); color: #b9c6d3; padding-block: var(--s-8) var(--s-5); font-size: var(--fs-sm); margin-top: var(--s-8); }
.site-footer a { color: #dfe7ef; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; color: #fff; }
.footer-grid { display: grid; gap: var(--s-6); }
@media (min-width: 900px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.site-footer h2 { color: #fff; font-family: var(--font-body); font-size: .85rem; letter-spacing: .1em; text-transform: uppercase; margin-bottom: var(--s-4); }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.footer-legal { border-top: 1px solid rgba(255,255,255,.12); margin-top: var(--s-7); padding-top: var(--s-5); display: grid; gap: var(--s-3); font-size: var(--fs-xs); }
.disclaimer { color: #9fb0c1; max-width: 90ch; }

/* ---------- Barra CTA móvil ---------- */
.mobile-cta { position: fixed; inset: auto 0 0 0; z-index: 40; display: flex; gap: var(--s-2); padding: .6rem 1rem calc(.6rem + env(safe-area-inset-bottom)); background: rgba(255,255,255,.97); border-top: 1px solid var(--line); box-shadow: 0 -6px 20px rgba(15,27,45,.08); }
.mobile-cta .btn { flex: 1; min-height: 44px; }
@media (min-width: 1040px) { .mobile-cta { display: none; } }
@media (max-width: 1039px) { body { padding-bottom: 72px; } }

/* ---------- Utilidades ---------- */
.text-center { text-align: center; }
.muted { color: var(--ink-2); }
.small { font-size: var(--fs-xs); }
.mt-0 { margin-top: 0; } .mt-6 { margin-top: var(--s-6); }
.badge { display: inline-block; font-size: var(--fs-xs); font-weight: 700; background: var(--mist); color: var(--navy); border-radius: 999px; padding: .2rem .65rem; }
.split { display: grid; gap: var(--s-7); align-items: start; }
@media (min-width: 960px) { .split { grid-template-columns: 1fr 1fr; } .split--60 { grid-template-columns: 1.2fr .8fr; } }
.check-list { list-style: none; padding: 0; }
.check-list li { padding-left: 1.7rem; position: relative; }
.check-list li::before { content: ""; position: absolute; left: 0; top: .45em; width: 1rem; height: .55rem; border-left: 2px solid var(--teal); border-bottom: 2px solid var(--teal); transform: rotate(-45deg); }
.team { display: grid; gap: var(--s-5); }
@media (min-width: 800px) { .team { grid-template-columns: repeat(3, 1fr); } }
.profile { text-align: left; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: var(--s-5); background: #fff; }
.profile img { width: 112px; height: 112px; border-radius: 50%; object-fit: cover; margin-bottom: var(--s-4); }
.profile h3 { margin-bottom: var(--s-1); }
.profile .role { color: var(--teal-700); font-weight: 650; font-size: var(--fs-sm); margin-bottom: var(--s-3); }
.profile ul { font-size: var(--fs-sm); color: var(--ink-2); padding-left: 1.1rem; }

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }
@media print { .site-header, .mobile-cta, .site-footer, .cta-band, .aside-sticky { display: none !important; } }

/* ---------- Ajustes de desbordamiento en móvil ---------- */
.layout-article, .split, .hero__grid, .grid, .footer-grid { grid-template-columns: minmax(0, 1fr); }
.layout-article > *, .split > *, .hero__grid > *, .grid > * { min-width: 0; }
@media (min-width: 720px) { .grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1000px) { .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .layout-article { grid-template-columns: minmax(0, 1fr) 320px; } }
@media (min-width: 960px) { .hero__grid { grid-template-columns: 1.05fr .95fr; } .split { grid-template-columns: 1fr 1fr; } .split--60 { grid-template-columns: 1.2fr .8fr; } }
@media (min-width: 900px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
@media (max-width: 560px) {
  .brand { font-size: 1.05rem; gap: .45rem; } .brand img { width: 30px; height: 30px; }
  .site-header__inner { gap: .5rem; } .header-actions { gap: .4rem; }
  .form { padding: var(--s-5) var(--s-4); }
  .cta-band { padding: var(--s-6) var(--s-4); }
  .keyfacts dl { grid-template-columns: 1fr; } .keyfacts dd { margin-bottom: var(--s-2); }
}
.header-actions .header-cta { display: none; }
@media (min-width: 1040px) { .header-actions .header-cta { display: inline-flex; } }