/* Globalvets · Modelo 4 · Simple e informativo («Cadena de cuidado») */

@font-face {
  font-family: 'Inter';
  src: url('fonts/inter-400-normal.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('fonts/inter-500-normal.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('fonts/inter-600-normal.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter Tight';
  src: url('fonts/inter-tight-700-normal.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter Tight';
  src: url('fonts/inter-tight-800-normal.woff2') format('woff2');
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

:root {
  --rojo: #CD0610;
  --rojo-oscuro: #A50510;
  --tinta: #1e293b;
  --texto: #334155;
  --texto-suave: #4b5563;
  --malla: #F0F5FA;
  --blanco: #FFFFFF;
  --linea: #D1D5DB;
  --sombra: 0 1px 2px rgba(15, 23, 42, 0.06), 0 14px 32px -16px rgba(15, 23, 42, 0.22);
  --sombra-alta: 0 28px 56px -24px rgba(15, 23, 42, 0.32);
  --gutter: clamp(20px, 4vw, 56px);
  --ancho: 1200px;
  --cabecera-alto: 84px;
  --barra-alto: 42px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--texto);
  background: var(--blanco);
  overflow-x: hidden;
}

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

a {
  color: inherit;
}

h1,
h2,
h3 {
  font-family: 'Inter Tight', 'Inter', sans-serif;
  font-weight: 800;
  color: var(--tinta);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

h3 {
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}

p {
  margin: 0 0 1em;
}

:focus-visible {
  outline: 3px solid #2563eb;
  outline-offset: 3px;
}

.wrap {
  width: min(var(--ancho), 100% - 2 * var(--gutter));
  margin-inline: auto;
}

/* Íconos de línea */
svg.linea {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- Aviso de demostración y selector ---------- */

.barra-demo {
  background: var(--tinta);
  color: #e2e8f0;
  font-size: 0.82rem;
  line-height: 1.4;
  position: relative;
  z-index: 60;
}

.barra-interior {
  min-height: var(--barra-alto);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 6px;
}

.barra-texto {
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.barra-acciones {
  display: flex;
  align-items: center;
  gap: 20px;
  white-space: nowrap;
  flex-shrink: 0;
}

.barra-enlace {
  color: var(--blanco);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.barra-enlace:hover {
  color: #fca5a5;
}

.selector {
  position: relative;
}

.selector summary {
  list-style: none;
  cursor: pointer;
  color: var(--blanco);
  font-weight: 600;
  padding: 4px 10px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
}

.selector summary::-webkit-details-marker {
  display: none;
}

.selector summary::after {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-left: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
}

.selector[open] summary::after {
  transform: translateY(2px) rotate(-135deg);
}

.selector ul {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  z-index: 80;
  list-style: none;
  margin: 0;
  padding: 8px;
  min-width: 220px;
  background: var(--blanco);
  color: var(--texto);
  border-radius: 12px;
  box-shadow: var(--sombra-alta);
  border: 1px solid var(--linea);
}

.selector li a {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--texto);
  font-size: 0.92rem;
  transition: background-color 0.2s;
}

.selector li a:hover {
  background: var(--malla);
}

.selector li a[aria-current='page'] {
  font-weight: 700;
  color: var(--rojo-oscuro);
}

/* ---------- Cabecera ---------- */

.cabecera {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--linea);
}

.cabecera-interior {
  height: var(--cabecera-alto);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.marca img {
  height: 44px;
  width: auto;
  /* El PNG trae ~7 px de margen transparente: se compensa para que el wordmark alinee con el contenido */
  margin-left: -7px;
}

.menu ul {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.menu a {
  position: relative;
  display: inline-block;
  padding: 6px 0;
  font-weight: 500;
  color: var(--tinta);
  text-decoration: none;
}

.menu a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--rojo);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease);
}

.menu a:hover::after,
.menu a[aria-current='page']::after {
  transform: scaleX(1);
}

.menu-boton {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--linea);
  border-radius: 12px;
  background: var(--blanco);
  color: var(--tinta);
  cursor: pointer;
}

.menu-boton svg {
  width: 22px;
  height: 22px;
}

/* ---------- Botones con relleno ---------- */

.boton {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border: 1.5px solid var(--rojo);
  border-radius: 999px;
  background: var(--rojo);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.4s var(--ease), border-color 0.4s var(--ease);
}

.boton::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--tinta);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease);
}

.boton:hover,
.boton:focus-visible {
  border-color: var(--tinta);
}

.boton:hover::before,
.boton:focus-visible::before {
  transform: scaleX(1);
}

.boton svg {
  width: 18px;
  height: 18px;
  transition: transform 0.4s var(--ease);
}

.boton:hover svg {
  transform: translateX(4px);
}

.boton-linea {
  background: transparent;
  color: var(--tinta);
  border-color: var(--tinta);
}

.boton-linea::before {
  background: var(--tinta);
}

.boton-linea:hover,
.boton-linea:focus-visible {
  color: #ffffff;
}

/* ---------- Fondo de malla animada ---------- */

.malla {
  position: absolute;
  inset: -12% -8%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(40% 50% at 14% 22%, rgba(205, 6, 16, 0.08), transparent 70%),
    radial-gradient(42% 52% at 86% 78%, rgba(205, 6, 16, 0.06), transparent 70%),
    radial-gradient(55% 60% at 62% 36%, rgba(30, 41, 59, 0.05), transparent 72%),
    linear-gradient(180deg, #ffffff 0%, #f0f5fa 100%);
  animation: deriva 22s ease-in-out infinite alternate;
}

@keyframes deriva {
  from {
    transform: translate3d(-2%, -1%, 0) scale(1);
  }
  to {
    transform: translate3d(2%, 2%, 0) scale(1.05);
  }
}

/* ---------- Portada ---------- */

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(48px, 7vh, 88px) 0 clamp(56px, 8vh, 96px);
}

.hero-rejilla {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(32px, 5vw, 80px);
  align-items: center;
  min-height: min(calc(100svh - var(--cabecera-alto) - var(--barra-alto)), 760px);
}

.etiqueta {
  display: inline-flex;
  align-items: center;
  margin: 0;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rojo-oscuro);
}

.etiqueta::before {
  content: '';
  width: 28px;
  height: 2px;
  margin-right: 12px;
  background: var(--rojo);
}

.titular-principal {
  font-size: clamp(2.5rem, 4.8vw, 4.1rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
  margin: 18px 0 22px;
  max-width: 16ch;
}

.lead {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--texto);
  max-width: 44ch;
}

.acciones {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

/* Reparto de palabras para el revelado del titular */
.palabra {
  display: inline-block;
  overflow: hidden;
  vertical-align: top;
  padding-bottom: 0.08em;
}

.palabra > span {
  display: inline-block;
}

/* ---------- Cadena de servicios (pieza del hero) ---------- */

.cadena {
  position: relative;
  container-type: inline-size;
  width: 100%;
  max-width: 640px;
  margin: 0;
  justify-self: end;
  aspect-ratio: 640 / 560;
}

.cadena-lineas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.trazo {
  fill: none;
  stroke: var(--rojo);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
}

.aro {
  fill: none;
  stroke: var(--rojo);
  stroke-width: 5;
  stroke-linecap: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
}

.nodo {
  position: absolute;
  width: 31.25%;
  min-height: 19cqi;
  display: flex;
  flex-direction: column;
  justify-content: center;
  transform: translate(-50%, -50%);
  padding: clamp(10px, 2.2cqi, 16px) clamp(12px, 2.6cqi, 18px);
  background: var(--blanco);
  border: 1px solid var(--linea);
  border-radius: 14px;
  box-shadow: var(--sombra);
  opacity: 0;
}

.nodo-num {
  margin: 0;
  font-family: 'Inter Tight', sans-serif;
  font-size: clamp(0.66rem, 1.6cqi, 0.8rem);
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--rojo-oscuro);
}

.nodo-titulo {
  margin: 4px 0 0;
  font-size: clamp(0.74rem, 2.1cqi, 0.97rem);
  font-weight: 600;
  line-height: 1.25;
  color: var(--tinta);
}

.ilus {
  position: absolute;
  width: 17.5%;
  height: auto;
  transform: translate(-50%, -50%) scale(0.7);
  opacity: 0;
  pointer-events: none;
}

.cadena.dibujado .trazo {
  animation: dibujar 0.9s cubic-bezier(0.6, 0, 0.2, 1) forwards;
  animation-delay: calc(0.25s + var(--i) * 0.4s);
}

.cadena.dibujado .aro {
  animation: dibujar 1.6s cubic-bezier(0.6, 0, 0.2, 1) forwards 1.8s;
}

.cadena.dibujado .nodo {
  animation: aparecer 0.7s var(--ease) forwards;
  animation-delay: calc(0.1s + var(--i) * 0.4s);
}

.cadena.dibujado .ilus {
  animation: aparecer-ilus 0.9s var(--ease) forwards;
  animation-delay: 2.1s;
}

.cadena.dibujado .ilus-perro {
  animation-delay: 2.3s;
}

.cadena.dibujado .ilus-ave {
  animation-delay: 2.5s;
}

@keyframes dibujar {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes aparecer {
  from {
    opacity: 0;
    transform: translate(-50%, calc(-50% + 12px));
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%);
  }
}

@keyframes aparecer-ilus {
  from {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.7);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}

/* Entrada de textos de página */
.entrada {
  opacity: 0;
  animation: subir 0.9s var(--ease) forwards;
}

.entrada.e1 { animation-delay: 0.05s; }
.entrada.e2 { animation-delay: 0.15s; }
.entrada.e3 { animation-delay: 0.3s; }
.entrada.e4 { animation-delay: 0.45s; }

@keyframes subir {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- Secciones ---------- */

.seccion {
  padding: clamp(72px, 10vw, 128px) 0;
}

.seccion-malla {
  background: var(--malla);
}

.encabezado-seccion {
  max-width: 680px;
  margin-bottom: 48px;
}

.encabezado-seccion h2 {
  font-size: clamp(1.9rem, 3.2vw, 2.7rem);
  margin-top: 10px;
}

h2 {
  font-size: clamp(1.9rem, 3.2vw, 2.6rem);
}

.rejilla-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.tarjeta {
  position: relative;
  background: var(--blanco);
  border: 1px solid var(--linea);
  border-radius: 18px;
  padding: 28px;
  box-shadow: var(--sombra);
  transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
  will-change: transform;
}

.tarjeta:hover {
  box-shadow: 0 26px 48px -22px rgba(15, 23, 42, 0.3);
  border-color: #b8c2cf;
}

.tarjeta p {
  margin: 0;
  color: var(--texto-suave);
  font-size: 0.97rem;
}

.icono {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: 20px;
  border-radius: 14px;
  background: rgba(205, 6, 16, 0.08);
  color: var(--rojo);
  transition: background-color 0.35s var(--ease), color 0.35s var(--ease);
}

.icono svg {
  width: 26px;
  height: 26px;
}

.tarjeta:hover .icono {
  background: var(--rojo);
  color: #ffffff;
}

/* Líneas de producto (portada) */
.lineas {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.linea-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  height: 100%;
  padding: 22px;
  background: var(--blanco);
  border: 1px solid var(--linea);
  border-radius: 16px;
  color: var(--tinta);
  font-weight: 600;
  text-decoration: none;
  line-height: 1.3;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.linea-item svg {
  width: 30px;
  height: 30px;
  color: var(--rojo);
}

.linea-item:hover {
  border-color: var(--rojo);
  transform: translateY(-4px);
}

/* Dos columnas (nosotros) */
.dos-columnas {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: center;
}

.dos-columnas .etiqueta {
  margin-bottom: 14px;
}

.dos-columnas h2 {
  margin-bottom: 22px;
}

.foto {
  margin: 0;
  overflow: hidden;
  border-radius: 24px;
  box-shadow: var(--sombra-alta);
}

.foto img {
  width: 100%;
  height: auto;
  aspect-ratio: 1919 / 803;
  object-fit: cover;
  transition: transform 1.2s var(--ease);
}

.foto:hover img {
  transform: scale(1.03);
}

/* Cabecera de páginas interiores */
.cabecera-pagina {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(56px, 9vh, 104px) 0 clamp(48px, 7vh, 80px);
}

.cabecera-pagina-rejilla {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(24px, 4vw, 64px);
  align-items: end;
}

.cabecera-pagina .titular-principal {
  font-size: clamp(2.3rem, 4.2vw, 3.6rem);
  margin-bottom: 0;
}

.especies {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.especies li {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 14px 10px 12px;
  background: var(--blanco);
  border: 1px solid var(--linea);
  border-radius: 18px;
  box-shadow: var(--sombra);
  font-weight: 600;
  color: var(--tinta);
  font-size: 0.92rem;
}

.especies img {
  width: 96px;
  height: 96px;
  object-fit: contain;
}

/* Cinco líneas (productos) */
.rejilla-lineas {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 20px;
}

.rejilla-lineas .tarjeta {
  grid-column: span 2;
  scroll-margin-top: calc(var(--cabecera-alto) + 24px);
}

.rejilla-lineas .tarjeta:nth-child(n + 4) {
  grid-column: span 3;
}

/* Banda de contacto */
.banda-contacto {
  padding: clamp(56px, 8vw, 96px) 0;
  background: var(--tinta);
  color: #e2e8f0;
}

.banda-contacto h2 {
  color: #ffffff;
  font-size: clamp(1.7rem, 2.8vw, 2.3rem);
  margin-bottom: 10px;
}

.banda-contacto p {
  margin: 0;
  color: #e2e8f0;
}

.banda-contacto a:not(.boton) {
  color: #ffffff;
  text-underline-offset: 3px;
}

.banda-interior {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.banda-contacto .boton {
  background: var(--rojo);
  border-color: var(--rojo);
  color: #ffffff;
}

.banda-contacto .boton::before {
  background: #ffffff;
}

.banda-contacto .boton:hover,
.banda-contacto .boton:focus-visible {
  color: var(--tinta);
  border-color: #ffffff;
}

/* ---------- Contacto ---------- */

.contacto-rejilla {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(32px, 5vw, 80px);
  align-items: start;
}

.contacto-datos {
  display: grid;
  gap: 16px;
}

.dato {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 22px 24px;
  background: var(--blanco);
  border: 1px solid var(--linea);
  border-radius: 18px;
  box-shadow: var(--sombra);
}

.dato .icono {
  flex-shrink: 0;
  margin: 0;
}

.dato h2 {
  font-size: 1.05rem;
  margin: 2px 0 4px;
}

.dato p {
  margin: 0;
  color: var(--texto);
}

.dato a {
  color: var(--tinta);
  font-weight: 600;
  text-underline-offset: 3px;
}

.dato a:hover {
  color: var(--rojo-oscuro);
}

.motivo {
  margin: 8px 0 0;
  display: flex;
  justify-content: center;
  opacity: 0.9;
}

.motivo img {
  width: min(220px, 60%);
  height: auto;
}

.formulario {
  display: grid;
  gap: 18px;
  padding: clamp(24px, 3.5vw, 40px);
  background: var(--blanco);
  border: 1px solid var(--linea);
  border-radius: 24px;
  box-shadow: var(--sombra-alta);
}

.campo {
  display: grid;
  gap: 8px;
}

.campo label {
  font-weight: 600;
  color: var(--tinta);
  font-size: 0.95rem;
}

.campo input,
.campo select,
.campo textarea {
  width: 100%;
  padding: 13px 14px;
  font: inherit;
  color: var(--tinta);
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: 12px;
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.campo input:focus,
.campo select:focus,
.campo textarea:focus {
  outline: none;
  border-color: var(--rojo);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(205, 6, 16, 0.12);
}

.campo textarea {
  resize: vertical;
  min-height: 130px;
}

.formulario .boton {
  justify-self: start;
  cursor: pointer;
}

.aviso-formulario {
  margin: 0;
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--malla);
  border: 1px solid #b6c6d8;
  color: var(--tinta);
  font-size: 0.95rem;
}

.aviso-formulario[hidden] {
  display: none;
}

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

.pie {
  background: var(--blanco);
  border-top: 1px solid var(--linea);
  padding: clamp(56px, 7vw, 80px) 0 0;
}

.pie-rejilla {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1.3fr;
  gap: 40px;
}

.pie-logo {
  width: 170px;
  height: auto;
  margin: 0 0 16px -7px;
}

.pie p {
  color: var(--texto-suave);
  font-size: 0.95rem;
}

.pie-titulo {
  font-weight: 700;
  color: var(--tinta);
  margin: 0 0 12px;
}

.pie-lista {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--texto);
}

.pie-lista li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.pie-lista svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  color: var(--rojo);
}

.pie-lista a {
  text-decoration: none;
  color: var(--tinta);
  font-weight: 500;
}

.pie-lista a:hover {
  color: var(--rojo-oscuro);
  text-decoration: underline;
}

.pie-inferior {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 32px;
  margin-top: 48px;
  padding-block: 22px 28px;
  border-top: 1px solid var(--linea);
}

.pie-inferior p {
  margin: 0;
  font-weight: 600;
  color: var(--tinta);
}

.selector-pie {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
}

.selector-pie p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--texto-suave);
}

.selector-pie ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.selector-pie a {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--linea);
  border-radius: 999px;
  font-size: 0.88rem;
  text-decoration: none;
  color: var(--tinta);
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.selector-pie a:hover {
  border-color: var(--rojo);
}

.selector-pie a[aria-current='page'] {
  background: var(--tinta);
  border-color: var(--tinta);
  color: #ffffff;
  font-weight: 600;
}

/* ---------- Cambio de página ---------- */

/* Cortina con aro rojo: se dibuja y luego se navega */
.velo {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  background: var(--blanco);
  opacity: 0;
  pointer-events: none;
}

.velo svg {
  width: min(42vmin, 320px);
  height: auto;
  overflow: visible;
}

.velo-aro {
  fill: none;
  stroke: var(--rojo);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
}

.saliendo .velo {
  opacity: 1;
  pointer-events: auto;
  transition: opacity 0.2s linear;
}

.saliendo .velo-aro {
  animation: dibujar 0.7s cubic-bezier(0.6, 0, 0.2, 1) forwards;
}

/* View Transitions: el nuevo contenido se revela desde el centro, como un aro que se abre */
@view-transition {
  navigation: auto;
}

::view-transition-old(root) {
  animation: none;
}

::view-transition-new(root) {
  animation: revelar 0.9s cubic-bezier(0.7, 0, 0.2, 1) both;
}

@keyframes revelar {
  from {
    clip-path: circle(0% at 50% 50%);
  }
  to {
    clip-path: circle(150% at 50% 50%);
  }
}

/* ---------- Responsive ---------- */

@media (max-width: 1100px) {
  .rejilla-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lineas {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .rejilla-lineas {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .rejilla-lineas .tarjeta,
  .rejilla-lineas .tarjeta:nth-child(n + 4) {
    grid-column: span 1;
  }

  .rejilla-lineas .tarjeta:last-child {
    grid-column: span 2;
  }

  .pie-rejilla {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .hero-rejilla,
  .cabecera-pagina-rejilla,
  .dos-columnas,
  .contacto-rejilla {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-rejilla {
    min-height: 0;
  }

  .cadena {
    justify-self: center;
    max-width: 560px;
  }

  .banda-interior {
    flex-direction: column;
    align-items: flex-start;
  }

  .lineas {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .menu-boton {
    display: inline-flex;
  }

  .menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--blanco);
    border-bottom: 1px solid var(--linea);
    box-shadow: var(--sombra-alta);
    padding: 0 var(--gutter);
  }

  .menu.abierto {
    display: block;
  }

  .menu ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .menu a {
    display: block;
    padding: 16px 0;
    border-bottom: 1px solid var(--linea);
  }

  .menu a::after {
    display: none;
  }

  .menu li:last-child a {
    border-bottom: 0;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

  .barra-texto {
    display: none;
  }

  .barra-interior {
    justify-content: space-between;
  }

  .rejilla-4,
  .rejilla-lineas,
  .lineas,
  .pie-rejilla {
    grid-template-columns: minmax(0, 1fr);
  }

  .rejilla-lineas .tarjeta,
  .rejilla-lineas .tarjeta:last-child {
    grid-column: span 1;
  }

  .lineas {
    gap: 12px;
  }

  .nodo {
    width: 36%;
  }

  .especies img {
    width: 72px;
    height: 72px;
  }

  .especies {
    gap: 10px;
  }

  .boton {
    width: 100%;
    justify-content: center;
  }

  .acciones .boton {
    width: auto;
  }

  .acciones {
    flex-direction: column;
    align-items: stretch;
  }

  .acciones .boton {
    width: 100%;
  }

  .formulario .boton {
    width: 100%;
  }

  .pie-inferior {
    justify-content: flex-start;
  }
}

/* ---------- Movimiento reducido ---------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .malla {
    animation: none;
  }

  .trazo,
  .aro,
  .velo-aro {
    stroke-dashoffset: 0;
  }

  .nodo,
  .ilus {
    opacity: 1;
  }

  .entrada {
    opacity: 1;
  }

  .tarjeta {
    transform: none;
  }

  ::view-transition-new(root) {
    animation-duration: 0.01ms;
  }
}