/* ============================================================
   InfoSol.es — Hoja de estilos principal
   Dirección visual: "Clínico sereno" (blanco + teal)
   Tipografía: Source Serif 4 (títulos) + Source Sans 3 (texto)
   Pensada para lectores mayores: letra grande, alto contraste
   ============================================================ */

:root {
  --teal: #0E7490;
  --teal-dark: #155E75;
  --teal-darker: #0C4A6E;
  --ink: #0F2A3D;
  --text: #334155;
  --text-soft: #475569;
  --muted: #64748B;
  --sky-bg: #F0F9FF;
  --sky-border: #BAE6FD;
  --border: #E2E8F0;
  --sun: #F59E0B;
  --sun-soft: #FDE68A;
  --white: #FFFFFF;
  --footer-bg: #0F2A3D;
  --serif: 'Spectral', Georgia, serif;
  --sans: 'Source Sans 3', 'Segoe UI', Arial, sans-serif;
  --radius: 14px;
  --maxw: 1140px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 100%; scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--text);
  background: var(--white);
  font-size: 1.1875rem; /* 19px base — cómodo para mayores */
  line-height: 1.65;
}

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

a { color: var(--teal); }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--sun);
  outline-offset: 2px;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.skip-link {
  position: absolute; left: -9999px; top: 0; background: var(--ink); color: #fff;
  padding: 12px 20px; z-index: 200; font-weight: 700; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Cabecera ---------- */
.site-header { background: var(--teal); color: #fff; }
.site-header .bar {
  max-width: var(--maxw); margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: #fff; }
.brand .brand-logo { width: 40px; height: 40px; flex: none; display: block; }
.brand .name { font-family: var(--serif); font-size: 1.7rem; font-weight: 700; letter-spacing: -0.01em; }
.brand .name small { font-weight: 400; opacity: .85; }

.site-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.site-nav a {
  color: #E0F2FE; font-size: 1.05rem; font-weight: 600; text-decoration: none;
  padding: 10px 16px; border-radius: 8px; white-space: nowrap;
}
.site-nav a:hover { background: rgba(255,255,255,.12); color: #fff; }
.site-nav a[aria-current="page"] { background: rgba(255,255,255,.2); color: #fff; }

/* Banda de búsqueda */
.search-band { background: var(--sky-bg); border-bottom: 1px solid var(--sky-border); }
.search-band form {
  max-width: var(--maxw); margin: 0 auto; padding: 16px 24px;
  display: flex; align-items: center; gap: 14px;
}
.search-band label { font-weight: 700; color: var(--teal-darker); white-space: nowrap; }
.search-band .field {
  flex: 1; display: flex; background: #fff; border: 2px solid #7DD3FC;
  border-radius: 12px; overflow: hidden;
}
.search-band input {
  flex: 1; border: 0; padding: 13px 18px; font-size: 1.05rem; font-family: var(--sans); color: var(--ink);
}
.search-band input::placeholder { color: #94A3B8; }
.search-band button {
  border: 0; background: var(--teal); color: #fff; font-weight: 700; font-size: 1.05rem;
  padding: 0 26px; cursor: pointer; font-family: var(--sans);
}
.search-band button:hover { background: var(--teal-dark); }

/* ---------- Migas ---------- */
.breadcrumbs { padding: 18px 0 0; font-size: .95rem; color: var(--muted); }
.breadcrumbs a { color: var(--teal); text-decoration: none; }
.breadcrumbs a:hover { text-decoration: underline; }

/* ---------- Portada ---------- */
.hero { text-align: center; padding: 56px 24px 40px; max-width: 900px; margin: 0 auto; }
.hero h1 { font-family: var(--serif); font-size: 2.9rem; line-height: 1.15; color: var(--ink); text-wrap: pretty; }
.hero h1 b { color: var(--teal); }
.hero p { font-size: 1.2rem; color: var(--text-soft); margin-top: 20px; }
.hero .cite { font-size: .95rem; color: var(--muted); margin-top: 10px; }
.btn {
  display: inline-block; background: var(--teal); color: #fff; font-weight: 700;
  font-size: 1.15rem; padding: 15px 32px; border-radius: 12px; text-decoration: none;
  box-shadow: 0 4px 14px rgba(14,116,144,.25); border: 0; cursor: pointer; font-family: var(--sans);
}
.btn:hover { background: var(--teal-dark); }
.btn-ghost {
  display: inline-block; color: var(--teal-darker); font-weight: 700; font-size: 1.1rem;
  padding: 14px 28px; border-radius: 12px; text-decoration: none; border: 2px solid var(--teal);
}
.btn-ghost:hover { background: var(--sky-bg); }

.topics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; padding: 16px 0 8px; }
.topic {
  position: relative; display: block; text-decoration: none; border-radius: var(--radius);
  overflow: hidden; min-height: 320px; box-shadow: 0 2px 12px rgba(15,42,61,.08);
  transition: transform .18s, box-shadow .18s;
}
.topic img.bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.topic .overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(8,55,82,.94) 0%, rgba(10,64,94,.62) 40%, rgba(12,74,110,.15) 72%, rgba(12,74,110,.02) 100%); }
.topic .label { position: absolute; left: 0; right: 0; bottom: 0; padding: 22px 22px 24px; color: #fff; }
.topic .label h3 { font-family: var(--serif); font-size: 1.55rem; line-height: 1.12; margin-bottom: 7px; color: #fff; }
.topic .label p { font-size: 1.02rem; line-height: 1.45; color: rgba(255,255,255,.92); }
.topic:hover { transform: translateY(-4px); box-shadow: 0 16px 32px rgba(15,42,61,.22); }
.topic:hover img.bg { transform: scale(1.06); }

.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding: 44px 0 18px; flex-wrap: wrap; }
.section-head h2 { font-family: var(--serif); font-size: 1.9rem; color: var(--ink); }
.section-head a { font-weight: 700; text-decoration: none; font-size: 1.05rem; }
.section-head a:hover { text-decoration: underline; }

/* Destacado */
.feature {
  display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--border);
  border-radius: 18px; overflow: hidden; box-shadow: 0 2px 12px rgba(15,42,61,.06); background: #fff;
}
.feature .ph { min-height: 280px; }
.feature .bd { padding: 32px; display: flex; flex-direction: column; gap: 12px; justify-content: center; }
.tag {
  align-self: flex-start; background: #CCFBF1; color: #115E59; font-weight: 700;
  font-size: .85rem; padding: 4px 13px; border-radius: 999px; letter-spacing: .04em;
}
.feature h3 { font-family: var(--serif); font-size: 1.7rem; line-height: 1.22; }
.feature h3 a { color: var(--ink); text-decoration: none; }
.feature h3 a:hover { color: var(--teal); }
.feature p { font-size: 1.05rem; color: var(--text-soft); }
.src-note { font-size: .9rem; color: var(--muted); border-left: 3px solid var(--teal); padding-left: 12px; }

/* Tarjetas de artículos */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cards.two { grid-template-columns: repeat(2, 1fr); }
.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column; transition: box-shadow .15s, transform .15s;
}
.card:hover { box-shadow: 0 8px 22px rgba(15,42,61,.1); transform: translateY(-2px); }
.card .ph { height: 150px; }
.card .bd { padding: 20px; display: flex; flex-direction: column; gap: 9px; flex: 1; }
.card .cat { font-size: .8rem; font-weight: 700; letter-spacing: .06em; color: var(--teal-dark); text-transform: uppercase; }
.card h3 { font-family: var(--serif); font-size: 1.25rem; line-height: 1.28; }
.card h3 a { color: var(--ink); text-decoration: none; }
.card h3 a:hover { color: var(--teal); }
.card p { font-size: .98rem; color: var(--text-soft); flex: 1; }
.card .src { font-size: .85rem; color: var(--muted); border-top: 1px dashed var(--border); padding-top: 9px; }

/* Placeholder de imagen (sustituir por fotografías reales) */
.ph {
  background: #E9EEF2;
  display: flex; align-items: center; justify-content: center;
  color: #8497A6; font-size: .9rem; text-align: center; padding: 12px;
  overflow: hidden;
}
.ph.warm { background: #EFEAE0; color: #9A8B6F; }
.ph img { width: 100%; height: 100%; object-fit: cover; display: block; }
.article-page .ph, .feature .ph { padding: 0; }

/* ---------- Espacios publicitarios (AdSense) ----------
   Cuando AdSense apruebe el sitio, sustituya el contenido
   de cada .ad-slot por su bloque <ins class="adsbygoogle">. */
.ad-slot {
  margin: 40px auto; max-width: var(--maxw); padding: 0 24px;
}
.ad-slot .ad-box {
  border: 2px dashed #CBD5E1; border-radius: 12px; min-height: 100px;
  display: flex; align-items: center; justify-content: center;
  color: #94A3B8; font-size: .85rem; letter-spacing: .08em; background: #F8FAFC;
}

/* ---------- Página de artículo ---------- */
.article-page { max-width: 780px; margin: 0 auto; padding: 0 24px 40px; }
.article-page header.art-head { padding: 28px 0 8px; }
.art-head .cat { font-size: .9rem; font-weight: 700; letter-spacing: .06em; color: var(--teal-dark); text-transform: uppercase; }
.art-head h1 { font-family: var(--serif); font-size: 2.4rem; line-height: 1.18; color: var(--ink); margin-top: 10px; text-wrap: pretty; }
.art-meta { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 16px; font-size: .95rem; color: var(--muted); padding-bottom: 20px; border-bottom: 1px solid var(--border); }
.article-page .ph { border-radius: var(--radius); height: 300px; margin: 26px 0; }

.article-body h2 { font-family: var(--serif); font-size: 1.65rem; color: var(--ink); margin: 36px 0 14px; }
.article-body h3 { font-family: var(--serif); font-size: 1.3rem; color: var(--ink); margin: 28px 0 10px; }
.article-body p { margin: 0 0 18px; text-wrap: pretty; }
.article-body ul, .article-body ol { margin: 0 0 18px 26px; }
.article-body li { margin-bottom: 10px; }
.article-body strong { color: var(--ink); }

.keypoints {
  background: var(--sky-bg); border: 1px solid var(--sky-border); border-radius: var(--radius);
  padding: 22px 26px; margin: 26px 0;
}
.keypoints h2, .keypoints h3 { margin: 0 0 12px !important; font-size: 1.2rem !important; }
.keypoints ul { margin-bottom: 0; }

.datafact {
  display: flex; gap: 16px; align-items: flex-start; background: #fff;
  border: 1px solid var(--border); border-left: 5px solid var(--sun);
  border-radius: 10px; padding: 18px 22px; margin: 24px 0;
}
.datafact .num { font-family: var(--serif); font-size: 2rem; font-weight: 700; color: var(--teal-dark); line-height: 1; white-space: nowrap; }
.datafact p { margin: 0; font-size: 1rem; }
.datafact .f { display: block; font-size: .85rem; color: var(--muted); margin-top: 6px; }

.aviso-medico {
  background: #FFFBEB; border: 1px solid var(--sun-soft); border-radius: var(--radius);
  padding: 18px 22px; margin: 30px 0; font-size: .98rem; color: #713F12;
}
.aviso-medico strong { color: #713F12; }
.aviso-medico a { color: #92400E; }

/* Referencias */
.referencias { margin: 40px 0 0; padding-top: 24px; border-top: 2px solid var(--border); }
.referencias h2 { font-family: var(--serif); font-size: 1.35rem; color: var(--ink); margin-bottom: 14px; }
.referencias ol { margin-left: 24px; }
.referencias li { font-size: .95rem; color: var(--text-soft); margin-bottom: 10px; line-height: 1.5; }
.referencias li a { word-break: break-word; }
sup.ref a { text-decoration: none; font-weight: 700; color: var(--teal); padding: 0 2px; }

/* Relacionados */
.related { max-width: var(--maxw); margin: 0 auto; padding: 0 24px 50px; }

/* ---------- Listado / búsqueda ---------- */
.page-title { padding: 36px 0 6px; }
.page-title h1 { font-family: var(--serif); font-size: 2.3rem; color: var(--ink); }
.page-title p { color: var(--text-soft); margin-top: 8px; font-size: 1.1rem; }

.filters { display: flex; gap: 8px; flex-wrap: wrap; padding: 18px 0 26px; }
.filters button {
  font-family: var(--sans); font-size: .98rem; font-weight: 600; cursor: pointer;
  background: #fff; color: var(--teal-darker); border: 2px solid var(--sky-border);
  border-radius: 999px; padding: 9px 18px;
}
.filters button:hover { border-color: var(--teal); }
.filters button.active { background: var(--teal); border-color: var(--teal); color: #fff; }

.results-info { color: var(--muted); font-size: 1rem; padding-bottom: 18px; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 820px; margin: 0 auto 30px; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 14px; background: #fff; overflow: hidden; }
.faq-item summary {
  cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;
  gap: 16px; padding: 20px 24px; font-weight: 700; font-size: 1.15rem; color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .chev { flex: none; width: 32px; height: 32px; border-radius: 50%; background: var(--sky-bg); border: 1px solid var(--sky-border); display: flex; align-items: center; justify-content: center; color: var(--teal-dark); font-size: 1.1rem; transition: transform .2s; }
.faq-item[open] summary .chev { transform: rotate(45deg); }
.faq-item .ans { padding: 0 24px 22px; color: var(--text-soft); }
.faq-item .ans p { margin-bottom: 12px; }
.faq-item .ans .src { font-size: .9rem; color: var(--muted); border-left: 3px solid var(--teal); padding-left: 10px; }

/* ---------- Páginas legales / texto ---------- */
.legal-page { max-width: 820px; margin: 0 auto; padding: 0 24px 50px; }
.legal-page h1 { font-family: var(--serif); font-size: 2.2rem; color: var(--ink); padding: 36px 0 10px; }
.legal-page .updated { color: var(--muted); font-size: .95rem; margin-bottom: 24px; }
.legal-page h2 { font-family: var(--serif); font-size: 1.5rem; color: var(--ink); margin: 32px 0 12px; }
.legal-page h3 { font-size: 1.2rem; color: var(--ink); margin: 24px 0 10px; }
.legal-page p, .legal-page li { margin-bottom: 14px; }
.legal-page ul, .legal-page ol { margin: 0 0 16px 26px; }
.legal-page table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: .95rem; }
.legal-page th, .legal-page td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; vertical-align: top; }
.legal-page th { background: var(--sky-bg); color: var(--ink); }

/* ---------- Sobre nosotros ---------- */
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 26px 0; }
.value-card { background: var(--sky-bg); border: 1px solid var(--sky-border); border-radius: var(--radius); padding: 22px; }
.value-card h3 { font-size: 1.1rem; color: var(--ink); margin-bottom: 8px; }
.value-card p { font-size: .95rem; margin: 0; }

/* ---------- Pie ---------- */
.site-footer { background: var(--footer-bg); color: #94B8CC; margin-top: 56px; }
.site-footer .cols {
  max-width: var(--maxw); margin: 0 auto; padding: 44px 24px 30px;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 36px;
}
.site-footer .logo { font-family: var(--serif); font-size: 1.5rem; color: #fff; font-weight: 700; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.site-footer .footer-logo { width: 34px; height: 34px; flex: none; display: block; }
.site-footer p { font-size: .95rem; line-height: 1.6; max-width: 44ch; }
.site-footer h4 { color: #CDE7F5; font-size: 1rem; margin-bottom: 14px; letter-spacing: .04em; text-transform: uppercase; }
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 10px; }
.site-footer a { color: #CDE7F5; font-size: .98rem; }
.site-footer .bottom {
  border-top: 1px solid rgba(255,255,255,.14);
  text-align: center; padding: 18px 24px; font-size: .9rem;
}

/* ---------- Banner de cookies ---------- */
.cookie-banner {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 300;
  background: var(--ink); color: #E2E8F0; box-shadow: 0 -6px 24px rgba(0,0,0,.25);
}
.cookie-banner .in {
  max-width: var(--maxw); margin: 0 auto; padding: 20px 24px;
  display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
}
.cookie-banner p { flex: 1; min-width: 280px; font-size: .98rem; margin: 0; }
.cookie-banner a { color: #7DD3FC; }
.cookie-banner .acts { display: flex; gap: 10px; flex-wrap: wrap; }
.cookie-banner button {
  font-family: var(--sans); font-size: 1rem; font-weight: 700; cursor: pointer;
  border-radius: 10px; padding: 12px 22px; border: 0;
}
.cookie-banner .accept { background: var(--teal); color: #fff; }
.cookie-banner .accept:hover { background: #0891B2; }
.cookie-banner .reject { background: transparent; color: #CBD5E1; border: 1px solid #475569; }
.cookie-banner .reject:hover { background: rgba(255,255,255,.08); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .topics { grid-template-columns: repeat(2, 1fr); }
  .cards, .cards.two { grid-template-columns: repeat(2, 1fr); }
  .feature { grid-template-columns: 1fr; }
  .site-footer .cols { grid-template-columns: 1fr 1fr; }
  .value-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hero h1 { font-size: 2.1rem; }
  .topics, .cards, .cards.two { grid-template-columns: 1fr; }
  .site-nav a { font-size: 1rem; padding: 8px 12px; }
  .search-band label { display: none; }
  .site-footer .cols { grid-template-columns: 1fr; }
  .art-head h1 { font-size: 1.9rem; }
}

@media print {
  .site-header, .search-band, .site-footer, .cookie-banner, .ad-slot { display: none !important; }
}