/* ============================================================
   SALUD ADULTO MAYOR — style.css
   saludadultomayor.cl
   ============================================================
   Índice:
   1.  Tokens (variables CSS)
   2.  Reset y base
   3.  Layout y contenedor
   4.  Header
   5.  Barra de audiencia
   6.  Hero
   7.  Secciones generales
   8.  Banner de estadísticas
   9.  Cards de artículos (blog)
   10. Cards de glosario
   11. Cards de datos útiles
   12. CTA / Newsletter
   13. Footer
   14. Accesibilidad y utilidades
   15. Responsive (max 900px / 600px)
   ============================================================ */


/* ── 1. Tokens ─────────────────────────────────────────────── */
:root {
  /* Paleta principal */
  --verde:        #1A6B5A;
  --verde-oscuro: #0F4F41;
  --verde-claro:  #E8F5F0;
  --verde-medio:  #2E8B74;
  --ambar:        #C8863A;
  --ambar-claro:  #FEF3E8;

  /* Fondos */
  --crema:        #F5F0EB;
  --crema-oscuro: #EDE6DC;
  --blanco:       #FFFFFF;

  /* Texto */
  --carbon:       #2D2D2B;
  --gris-texto:   #5C5B58;
  --gris-suave:   #9C9A92;
  --borde:        #DDD8D0;

  /* Tipografía */
  --fuente-display: 'Lora', Georgia, serif;
  --fuente-body:    'DM Sans', system-ui, sans-serif;

  /* Radios */
  --radio-sm: 8px;
  --radio-md: 12px;
  --radio-lg: 18px;
  --radio-xl: 24px;

  /* Sombras */
  --sombra-suave: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --sombra-card:  0 2px 8px rgba(0,0,0,0.07), 0 1px 3px rgba(0,0,0,0.04);
}


/* ── 2. Reset y base ───────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--fuente-body);
  background: var(--crema);
  color: var(--carbon);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

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


/* ── 3. Layout y contenedor ────────────────────────────────── */
.contenedor {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}


/* ── 4. Header ─────────────────────────────────────────────── */
header {
  background: var(--blanco);
  border-bottom: 1px solid var(--borde);
  position: sticky;
  top: 0;
  z-index: 100;
  max-width: 100%;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-icono {
  width: 42px;
  height: 42px;
  background: var(--verde);
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icono svg {
  width: 24px;
  height: 24px;
}

.logo-texto {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-nombre {
  font-family: var(--fuente-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--verde);
  letter-spacing: -0.2px;
}

.logo-nombre em {
  font-style: normal;
  color: var(--ambar);
}

.logo-slogan {
  font-size: 11px;
  color: var(--gris-suave);
  font-weight: 400;
  letter-spacing: 0.01em;
}

/* Navegación principal */
nav[aria-label="Navegación principal"] {
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
  flex-shrink: 1;
}

nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--gris-texto);
  padding: 6px 12px;
  border-radius: var(--radio-sm);
  transition: background 0.15s, color 0.15s;
}

nav a:hover {
  background: var(--crema);
  color: var(--verde);
}

nav a.activo {
  color: var(--verde);
  background: var(--verde-claro);
}

/* Controles de accesibilidad en header */
.header-accesibilidad {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.btn-fuente {
  background: none;
  border: 1px solid var(--borde);
  border-radius: var(--radio-sm);
  padding: 5px 10px;
  font-family: var(--fuente-body);
  font-size: 13px;
  color: var(--gris-texto);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.btn-fuente:hover {
  border-color: var(--verde);
  color: var(--verde);
}

.btn-contraste {
  background: none;
  border: 1px solid var(--borde);
  border-radius: var(--radio-sm);
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.15s;
}

.btn-contraste:hover {
  border-color: var(--verde);
}

/* Botón hamburguesa (solo móvil) */
.menu-movil {
  display: none;
  background: none;
  border: 1px solid var(--borde);
  border-radius: var(--radio-sm);
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.menu-movil span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--carbon);
  border-radius: 2px;
  transition: transform 0.2s;
}


/* ── 5. Barra de audiencia ─────────────────────────────────── */
.barra-audiencia {
  background: var(--verde);
  padding: 10px 0;
}

.audiencia-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.audiencia-label {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  margin-right: 4px;
}

.pill-audiencia {
  padding: 5px 16px;
  border-radius: 99px;
  font-size: 13px;
  font-weight: 500;
  border: 1.5px solid rgba(255,255,255,0.3);
  color: rgba(255,255,255,0.85);
  cursor: pointer;
  transition: all 0.15s;
  background: transparent;
  font-family: var(--fuente-body);
}

.pill-audiencia:hover {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.6);
  color: white;
}

.pill-audiencia.activo {
  background: white;
  border-color: white;
  color: var(--verde);
}


/* ── 6. Hero ───────────────────────────────────────────────── */
.hero {
  background: var(--blanco);
  padding: 64px 0 72px;
  border-bottom: 1px solid var(--borde);
  overflow: hidden;
  position: relative;
}

/* Círculo decorativo de fondo */
.hero::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: var(--verde-claro);
  opacity: 0.5;
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 48px;
  align-items: center;
  position: relative;
}

/* Etiqueta superior del hero */
.hero-etiqueta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--verde-claro);
  color: var(--verde);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 99px;
  margin-bottom: 20px;
}

.hero-etiqueta::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--verde);
}

.hero h1 {
  font-family: var(--fuente-display);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 500;
  line-height: 1.2;
  color: var(--carbon);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero h1 em {
  font-style: italic;
  color: var(--verde);
}

.hero-descripcion {
  font-size: 17px;
  color: var(--gris-texto);
  max-width: 480px;
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-acciones {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Foto del hero */
.hero-foto {
  width: 100%;
  height: 420px;
  border-radius: var(--radio-xl);
  overflow: hidden;
  position: relative;
}

.hero-foto img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

/* Badge flotante sobre la foto */
.hero-foto-badge {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: white;
  border-radius: var(--radio-md);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.12);
}

.hero-foto-badge-icono {
  width: 36px;
  height: 36px;
  background: var(--verde-claro);
  border-radius: var(--radio-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hero-foto-badge-texto strong {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--carbon);
}

.hero-foto-badge-texto span {
  font-size: 12px;
  color: var(--gris-suave);
}

/* Botones globales */
.btn-primario {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--verde);
  color: white;
  font-family: var(--fuente-body);
  font-size: 15px;
  font-weight: 500;
  padding: 12px 24px;
  border-radius: var(--radio-md);
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  text-decoration: none;
}

.btn-primario:hover  { background: var(--verde-oscuro); }
.btn-primario:active { transform: scale(0.98); }

.btn-secundario {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--verde);
  font-family: var(--fuente-body);
  font-size: 15px;
  font-weight: 500;
  padding: 12px 24px;
  border-radius: var(--radio-md);
  border: 1.5px solid var(--verde);
  cursor: pointer;
  transition: background 0.15s;
  text-decoration: none;
}

.btn-secundario:hover { background: var(--verde-claro); }


/* ── 7. Secciones generales ────────────────────────────────── */
.seccion {
  padding: 56px 0;
}

.seccion-crema  { background: var(--crema); }
.seccion-blanco { background: var(--blanco); }

.seccion-titulo {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
}

.seccion-titulo h2 {
  font-family: var(--fuente-display);
  font-size: 24px;
  font-weight: 500;
  color: var(--carbon);
  letter-spacing: -0.3px;
}

.ver-todo {
  font-size: 14px;
  color: var(--verde);
  font-weight: 500;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.15s;
}

.ver-todo:hover { gap: 8px; }


/* ── 8. Banner de estadísticas ─────────────────────────────── */
.banner-stat {
  background: var(--verde);
  border-radius: var(--radio-xl);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
  margin-bottom: 0;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 160px;
}

.stat-numero {
  font-family: var(--fuente-display);
  font-size: 38px;
  font-weight: 500;
  color: white;
  line-height: 1;
}

.stat-descripcion {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  line-height: 1.4;
}

.stat-divisor {
  width: 1px;
  height: 60px;
  background: rgba(255,255,255,0.2);
}


/* ── 9. Cards de artículos (blog) ──────────────────────────── */
.grid-articulos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.card-articulo {
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: var(--radio-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.15s, transform 0.15s;
  text-decoration: none;
  color: inherit;
}

.card-articulo:hover {
  box-shadow: var(--sombra-card);
  transform: translateY(-2px);
}

.card-imagen {
  height: 200px;
  overflow: hidden;
}

.card-imagen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.card-articulo:hover .card-imagen img {
  transform: scale(1.03);
}

.card-cuerpo {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-categoria {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--verde);
  margin-bottom: 8px;
}

.card-titulo {
  font-family: var(--fuente-display);
  font-size: 17px;
  font-weight: 500;
  line-height: 1.35;
  color: var(--carbon);
  margin-bottom: 10px;
}

.card-resumen {
  font-size: 14px;
  color: var(--gris-texto);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 14px;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--gris-suave);
  border-top: 1px solid var(--crema-oscuro);
  padding-top: 12px;
  margin-top: auto;
}

/* Etiquetas de audiencia en cards */
.card-audiencia-tag {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 99px;
  font-weight: 500;
}

.tag-mayor    { background: var(--verde-claro); color: var(--verde); }
.tag-familiar { background: var(--ambar-claro); color: var(--ambar); }
.tag-cuidador { background: var(--crema-oscuro); color: var(--gris-texto); }


/* ── 10. Cards de glosario ─────────────────────────────────── */
.grid-glosario {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.card-termino {
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: var(--radio-md);
  padding: 16px 18px;
  transition: border-color 0.15s;
  text-decoration: none;
  color: inherit;
  display: block;
}

.card-termino:hover {
  border-color: var(--verde);
}

.card-termino-letra {
  font-size: 11px;
  font-weight: 500;
  color: var(--verde);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.card-termino-nombre {
  font-family: var(--fuente-display);
  font-size: 16px;
  font-weight: 500;
  color: var(--carbon);
  margin-bottom: 6px;
}

.card-termino-def {
  font-size: 13px;
  color: var(--gris-texto);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}


/* ── 11. Cards de datos útiles ─────────────────────────────── */
.grid-datos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.card-dato {
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: var(--radio-lg);
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.15s, border-color 0.15s;
}

.card-dato:hover {
  border-color: var(--verde-medio);
  box-shadow: var(--sombra-suave);
}

.card-dato-icono {
  width: 44px;
  height: 44px;
  border-radius: var(--radio-sm);
  background: var(--verde-claro);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-dato h3 {
  font-size: 15px;
  font-weight: 500;
  color: var(--carbon);
}

.card-dato p {
  font-size: 13px;
  color: var(--gris-texto);
  line-height: 1.5;
}


/* ── 12. CTA / Newsletter ──────────────────────────────────── */
.seccion-cta {
  background: var(--crema-oscuro);
  border-top: 1px solid var(--borde);
  border-bottom: 1px solid var(--borde);
}

.cta-inner {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.cta-texto {
  flex: 1;
  min-width: 260px;
}

.cta-texto h2 {
  font-family: var(--fuente-display);
  font-size: 22px;
  font-weight: 500;
  color: var(--carbon);
  margin-bottom: 8px;
  letter-spacing: -0.2px;
}

.cta-texto p {
  font-size: 15px;
  color: var(--gris-texto);
}

.cta-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.cta-input {
  padding: 11px 16px;
  border: 1px solid var(--borde);
  border-radius: var(--radio-md);
  font-family: var(--fuente-body);
  font-size: 15px;
  background: var(--blanco);
  color: var(--carbon);
  min-width: 240px;
  outline: none;
  transition: border-color 0.15s;
}

.cta-input:focus       { border-color: var(--verde); }
.cta-input::placeholder { color: var(--gris-suave); }


/* ── 13. Footer ────────────────────────────────────────────── */
footer {
  background: var(--carbon);
  color: rgba(255,255,255,0.7);
  padding: 48px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-marca .logo-nombre { color: white; }
.footer-marca .logo-icono  { background: var(--verde-medio); }

.footer-marca p {
  font-size: 14px;
  margin-top: 16px;
  line-height: 1.6;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 500;
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.footer-col ul { list-style: none; }

.footer-col ul li { margin-bottom: 8px; }

.footer-col ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color 0.15s;
}

.footer-col ul li a:hover { color: white; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p { font-size: 13px; }

.footer-aviso {
  font-size: 12px;
  color: rgba(255,255,255,0.45);
  max-width: 520px;
  text-align: right;
  line-height: 1.5;
}


/* ── 14. Accesibilidad y utilidades ────────────────────────── */

/* Clase para texto solo visible a lectores de pantalla */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Fuente grande (activada con botón A+) */
body.fuente-grande            { font-size: 20px; }
body.fuente-grande .hero h1   { font-size: clamp(34px, 5vw, 50px); }
body.fuente-grande nav a      { font-size: 16px; }

/* Anillo de foco visible para navegación por teclado */
:focus-visible {
  outline: 3px solid var(--verde);
  outline-offset: 2px;
  border-radius: 4px;
}


/* ── 15. Responsive ────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-inner          { grid-template-columns: 1fr; }
  .footer-grid         { grid-template-columns: 1fr 1fr; }
  nav[aria-label="Navegación principal"] { display: none; }
  .menu-movil          { display: flex; }
  .banner-stat         { padding: 28px 24px; gap: 24px; }
  .stat-divisor        { display: none; }
  .header-inner        { gap: 8px; }
  .logo-slogan         { display: none; }
}

@media (max-width: 600px) {
  .hero                { padding: 40px 0 48px; }
  .footer-grid         { grid-template-columns: 1fr; }
  .cta-inner           { flex-direction: column; gap: 24px; }
  .footer-bottom       { flex-direction: column; align-items: flex-start; }
  .footer-aviso        { text-align: left; }
  .seccion             { padding: 40px 0; }
  .audiencia-inner     { gap: 6px; }
}

/* ── Correcciones responsive móvil ─────────────────────────── */
@media (max-width: 900px) {
  .hero-contenido      { text-align: center; }
  .hero-etiqueta       { margin-left: auto; margin-right: auto; }
  .hero-descripcion    { margin-left: auto; margin-right: auto; }
  .hero-acciones       { justify-content: center; }
  .hero-foto           { height: 300px; }
}

@media (max-width: 600px) {
  .hero-acciones       { flex-direction: column; }
  .btn-primario,
  .btn-secundario      { justify-content: center; width: 100%; }
  .hero-foto           { height: 260px; }
}