/* Portada aprobada: el gradiente reúne marca, navegación y fuentes.
   Esta hoja solo se carga en /; no cambia las otras secciones.
   Escala compacta (23-sep): un solo carril de 1264px alinea logo, navegación,
   hero y contenido; ~75% del tamaño original, que obligaba a bajar el zoom. */
.lab-home-world {
  color: var(--oc-on-navy);
  background: var(--oc-bg-marca, var(--oc-navy)); /* canon en tokens.css desde el 23-sep */
}

.lab-home .oc-hero {
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--oc-on-navy);
  text-align: left;
}
.lab-home .oc-hero::before {
  content: "";
  position: absolute;
  inset: auto 5% 0 auto;
  width: 38%;
  height: 60%;
  border: 1px solid rgba(255, 255, 255, .08);
  border-bottom: 0;
  border-radius: 50% 50% 0 0;
  transform: translateY(31%);
  background: none;
  pointer-events: none;
}
.lab-home .oc-hero-inner {
  width: min(calc(100% - 64px), 1264px);
  max-width: 1264px;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
  align-items: center;
  gap: 72px;
  padding: 52px 0 56px;
}
.lab-home .oc-hero h1 {
  max-width: 640px;
  margin: 0 0 18px;
  color: var(--oc-on-navy);
  font-family: var(--oc-font-serif);
  font-size: clamp(36px, 2.5vw, 46px);
  font-weight: 700;
  line-height: 1.13;
  letter-spacing: -.035em;
  text-wrap: balance;
}
.lab-home .oc-hero h1 .accent { color: var(--oc-accent); }
.lab-hero-copy p {
  max-width: 520px;
  margin: 0 0 22px;
  color: var(--oc-on-navy-soft);
  font-size: 17px;
  line-height: 1.55;
}
.lab-hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 7px;
  border-bottom: 1px solid rgba(255, 255, 255, .55);
  color: var(--oc-on-navy);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
}
.lab-hero-cta:hover { color: var(--oc-navy-100); }
.lab-hero-cta svg { width: 16px; height: 16px; flex: none; }
.lab-hero-cta:focus-visible,
.lab-hero-sources a:focus-visible { outline: 3px solid var(--oc-focus-on-dark); outline-offset: 4px; }

.lab-hero-sources {
  display: block;
  align-self: center;
  margin: 0;
  padding-left: 36px;
  border-left: 1px solid rgba(255, 255, 255, .27);
  overflow: visible;
}
.lab-hero-sources a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 15px 0 16px;
  border-bottom: 1px solid rgba(255, 255, 255, .25);
  color: var(--oc-on-navy);
  white-space: normal;
  text-decoration: none;
}
.lab-hero-sources a:first-child { border-top: 1px solid rgba(255, 255, 255, .25); }
.lab-hero-sources a:hover strong { text-decoration: underline; text-underline-offset: 5px; }
.lab-hero-sources strong {
  font-family: var(--oc-font-serif);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.026em;
}
.lab-hero-sources span { color: var(--oc-on-navy-soft); font-size: 14px; line-height: 1.4; }
.lab-home .content { width: 100%; max-width: 1264px; margin: 34px auto 0; }

@media (max-width: 1100px) {
  .lab-home .oc-hero-inner { gap: 48px; }
}
@media (max-width: 900px) {
  .lab-home .oc-hero-inner { display: block; min-height: 0; padding: 48px 0 40px; }
  .lab-hero-sources { margin-top: 38px; padding: 0; border-left: 0; }
}
@media (max-width: 720px) {
  .lab-home .oc-hero-inner { width: min(calc(100% - 36px), 1500px); }
  .lab-home .oc-hero-inner { width: 100%; padding: 42px 18px 30px; }
  .lab-home .oc-hero h1 { margin-bottom: 20px; font-size: clamp(35px, 8vw, 50px); }
  .lab-hero-copy p { font-size: 17px; }
  .lab-hero-sources { margin-top: 28px; }
  .lab-hero-sources a { gap: 5px; padding: 13px 0 14px; }
  .lab-hero-sources strong { font-size: 22px; }
  .lab-hero-sources span { font-size: 14px; }
  .lab-home .content { margin-top: 20px; }
}