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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  padding-top: var(--cabecera-altura);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--tinta);
  background: var(--blanco);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--turquesa-profundo); text-decoration: none; transition: color .18s ease; }
a:hover { color: var(--turquesa); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  color: var(--tinta);
  margin: 0 0 0.4em;
}

p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }

.contenedor {
  width: min(var(--contenedor), 100% - (var(--espacio) * 2));
  margin-inline: auto;
}

.seccion {
  padding-block: clamp(56px, 9vw, 104px);
  background-color: var(--pastel-agua);
  background-image: radial-gradient(rgba(20, 194, 198, 0.07) 1px, transparent 1px);
  background-size: 26px 26px;
}
.seccion--arena {
  background-color: var(--pastel-arena);
  background-image: radial-gradient(rgba(255, 107, 74, 0.06) 1px, transparent 1px);
}
.seccion--degradado {
  background: linear-gradient(180deg, var(--turquesa-profundo), #0B6369);
  color: var(--blanco);
}

.encabezado-seccion {
  max-width: 640px;
  margin-bottom: clamp(28px, 5vw, 48px);
}

.etiqueta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--turquesa-profundo);
  background: rgba(20, 194, 198, 0.12);
  border: 1px solid rgba(20, 194, 198, 0.28);
  border-radius: var(--r-pill);
  padding: 0.3rem 0.75rem;
  margin-bottom: 0.85rem;
}
.etiqueta::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--coral); flex-shrink: 0; }

.seccion--degradado .etiqueta { color: #8FE3E6; background: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.25); }

.titulo-seccion {
  font-size: clamp(1.75rem, 4.2vw, 2.6rem);
  letter-spacing: -0.01em;
}
.titulo-seccion::after {
  content: "";
  display: block;
  width: 64px;
  height: 3px;
  border-radius: 2px;
  margin-top: 0.7rem;
  background: linear-gradient(90deg, var(--coral), var(--turquesa));
}

.sub-seccion {
  color: var(--tinta-suave);
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  max-width: 62ch;
  margin-top: 0.4rem;
}

.seccion--degradado .sub-seccion { color: rgba(255, 255, 255, 0.82); }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* ===== Foco accesible ===== */
:focus-visible {
  outline: 3px solid var(--coral);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  .sloth svg, .sloth__ojo { animation: none !important; }
}