/* Guía del Hígado — Dr. Guillermo Salinas
   Sobrio médico premium · letra grande (público 40-70) · mobile-first · sin JS */

:root {
  --crema: #faf7f2;
  --tinta: #1c1a17;
  --verde: #1e5741;
  --verde-suave: #eef4f0;
  --dorado: #b08d3e;
  --gris: #6b665e;
  --borde: #e5ddd0;
  --serif: Georgia, "Times New Roman", "Iowan Old Style", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html { font-size: 19px; }

body {
  background: var(--crema);
  color: var(--tinta);
  font-family: var(--sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Encabezado ---------- */

.site-header {
  border-bottom: 3px solid var(--verde);
  background: #fff;
  padding: 1.1rem 1rem 0.9rem;
  text-align: center;
}

.site-header .brand {
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--verde);
  text-decoration: none;
  display: inline-block;
  line-height: 1.25;
}

.site-header .brand span.byline {
  display: block;
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--gris);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-top: 0.25rem;
}

.site-nav {
  background: var(--verde);
  padding: 0.45rem 0.5rem;
  text-align: center;
}

.site-nav a {
  color: #fff;
  text-decoration: none;
  font-size: 0.82rem;
  padding: 0.25rem 0.55rem;
  display: inline-block;
  border-radius: 4px;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a:focus { background: rgba(255, 255, 255, 0.15); text-decoration: underline; }

.site-nav a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.18);
  font-weight: 600;
}

/* ---------- Contenido ---------- */

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.1rem 3rem;
}

h1, h2, h3 {
  font-family: var(--serif);
  color: var(--verde);
  line-height: 1.25;
}

h1 { font-size: 1.9rem; margin: 0.5rem 0 1rem; }
h2 { font-size: 1.45rem; margin: 2.2rem 0 0.8rem; padding-top: 0.4rem; }
h3 { font-size: 1.15rem; margin: 1.6rem 0 0.6rem; color: var(--tinta); }

h2::after {
  content: "";
  display: block;
  width: 3.2rem;
  height: 3px;
  background: var(--dorado);
  margin-top: 0.45rem;
  border-radius: 2px;
}

p { margin: 0 0 1.1rem; }

a { color: var(--verde); }
a:hover { color: var(--dorado); }

strong { color: var(--tinta); }

em { font-style: italic; }

ul, ol { margin: 0 0 1.2rem 1.4rem; }
li { margin-bottom: 0.55rem; }

blockquote {
  border-left: 4px solid var(--dorado);
  background: #fdfbf6;
  padding: 0.9rem 1.1rem;
  margin: 0 0 1.3rem;
  font-size: 0.97rem;
}

blockquote p:last-child { margin-bottom: 0; }

hr {
  border: none;
  border-top: 1px solid var(--borde);
  margin: 2.2rem 0;
}

/* Byline del artículo */
.article-byline {
  font-size: 0.92rem;
  color: var(--gris);
  font-style: italic;
  margin-bottom: 1.6rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--borde);
}

/* ---------- Tablas ---------- */

.table-wrap { overflow-x: auto; margin: 0 0 1.4rem; }

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.88rem;
  background: #fff;
}

th, td {
  border: 1px solid var(--borde);
  padding: 0.6rem 0.7rem;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--verde);
  color: #fff;
  font-family: var(--serif);
  font-weight: 600;
}

tr:nth-child(even) td { background: #fdfbf6; }

/* ---------- Portada: tarjetas ---------- */

.hero {
  text-align: center;
  padding: 1rem 0 0.5rem;
}

.hero h1 { font-size: 2.1rem; }

.hero .lede {
  font-size: 1.05rem;
  color: var(--gris);
  max-width: 34rem;
  margin: 0 auto 1.5rem;
}

.author-card {
  display: flex;
  gap: 1.1rem;
  align-items: center;
  background: #fff;
  border: 1px solid var(--borde);
  border-top: 4px solid var(--dorado);
  border-radius: 8px;
  padding: 1.2rem 1.3rem;
  margin: 1.8rem 0 2.4rem;
  text-align: left;
}

.author-card .photo {
  flex: 0 0 84px;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: var(--verde-suave);
  border: 2px solid var(--verde);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--verde);
}

.author-card .info { font-size: 0.94rem; }
.author-card .info .name {
  font-family: var(--serif);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--verde);
  display: block;
}
.author-card .info .cred { color: var(--gris); display: block; margin-top: 0.15rem; }

.cards { list-style: none; margin: 0 0 2rem; padding: 0; display: grid; gap: 1rem; }

.card {
  background: #fff;
  border: 1px solid var(--borde);
  border-left: 5px solid var(--verde);
  border-radius: 8px;
  margin: 0;
  transition: border-color 0.15s ease;
}

.card:hover { border-left-color: var(--dorado); }

.card a {
  display: block;
  padding: 1.15rem 1.25rem;
  text-decoration: none;
  color: inherit;
}

.card .card-title {
  font-family: var(--serif);
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--verde);
  display: block;
  margin-bottom: 0.35rem;
  line-height: 1.3;
}

.card a:hover .card-title { color: var(--dorado); }

.card .card-desc { font-size: 0.92rem; color: var(--gris); display: block; }

.card .card-tag {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--dorado);
  font-weight: 600;
  margin-bottom: 0.4rem;
}

/* ---------- Bloque libro ---------- */

.book-note {
  background: var(--verde-suave);
  border: 1px solid #d3e2d9;
  border-radius: 8px;
  padding: 1.2rem 1.3rem;
  margin: 2.2rem 0;
  font-size: 0.95rem;
}

.book-note h2, .book-note h3 {
  margin-top: 0;
  font-size: 1.1rem;
  color: var(--verde);
}
.book-note h2::after { display: none; }
.book-note p:last-child { margin-bottom: 0; }

/* ---------- Sobre el autor / aviso médico ---------- */

.author-box {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--borde);
  border-top: 4px solid var(--verde);
  border-radius: 8px;
  padding: 1.2rem 1.3rem;
  margin: 2.4rem 0 1.4rem;
  font-size: 0.93rem;
}

.author-box .photo {
  flex: 0 0 64px;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--verde-suave);
  border: 2px solid var(--verde);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--verde);
}

.author-box h2 { margin-top: 0; font-size: 1.1rem; }
.author-box h2::after { display: none; }
.author-box p:last-child { margin-bottom: 0; }

.disclaimer {
  background: #fdfbf6;
  border: 1px solid var(--borde);
  border-left: 4px solid var(--dorado);
  border-radius: 6px;
  padding: 1rem 1.15rem;
  margin: 2rem 0 1rem;
  font-size: 0.85rem;
  color: var(--gris);
}

.disclaimer strong { color: var(--tinta); }
.disclaimer p:last-child { margin-bottom: 0; }

/* ---------- Pie ---------- */

.site-footer {
  border-top: 3px solid var(--verde);
  background: #fff;
  text-align: center;
  padding: 1.6rem 1rem 2rem;
  font-size: 0.82rem;
  color: var(--gris);
}

.site-footer p { margin-bottom: 0.4rem; }
.site-footer a { color: var(--verde); }

/* ---------- Página 404 ---------- */

.error-page { text-align: center; padding: 3rem 0; }
.error-page h1 { font-size: 2.4rem; }

/* ---------- Pantallas medianas en adelante ---------- */

@media (min-width: 600px) {
  html { font-size: 20px; }
  h1 { font-size: 2.1rem; }
  .hero h1 { font-size: 2.4rem; }
  .site-nav a { font-size: 0.85rem; }
}

img.photo{border-radius:50%;object-fit:cover;width:96px;height:96px;display:block}
.hero img.photo{width:140px;height:140px}