:root {
  --page-x: clamp(1.25rem, 6vw, 7rem);
  --content-max: 1370px;
  --surface-warm: #fffdf4;
  --line-soft: rgba(4, 50, 86, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 2rem; }
body { margin: 0; color: var(--color-texto-principal); background: var(--color-blanco-leche); font-family: var(--font-body); line-height: 1.65; }
img { display: block; max-width: 100%; }
a { color: var(--color-azul-linaje); text-underline-offset: .22em; }
a:focus-visible { outline: 3px solid var(--color-azul-lina); outline-offset: 5px; border-radius: 2px; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { color: var(--color-azul-linaje); font-family: var(--font-heading); font-weight: 650; }
h1 { max-width: 800px; margin-bottom: 1.35rem; font-size: clamp(2.65rem, 4.6vw, 4.65rem); line-height: 1.1; letter-spacing: -.035em; text-wrap: balance; }
h2 { margin-bottom: 1rem; font-size: clamp(1.9rem, 2.75vw, 2.7rem); line-height: 1.2; letter-spacing: -.02em; text-wrap: balance; }
h3 { margin-bottom: .65rem; color: var(--color-azul-linaje); font-size: 1.1rem; font-weight: 750; line-height: 1.35; }
p { margin-bottom: 1rem; }
.skip-link { position: absolute; top: 16px; left: -9999px; z-index: 99; padding: 12px 16px; color: #fff; background: var(--color-azul-linaje); }
.skip-link:focus { left: 16px; }
.research-header { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 2rem; min-height: 96px; padding: .55rem var(--page-x); border-bottom: 1px solid var(--line-soft); background: #fff; }
.brand { justify-self: start; }
.brand img { width: auto; max-width: 118px; max-height: 72px; object-fit: contain; }
.back-link { font-size: .92rem; font-weight: 700; text-decoration: none; }
.back-link:hover { text-decoration: underline; }
.languages { display: flex; justify-self: end; gap: 1.25rem; font-size: .88rem; font-weight: 650; }
.languages a { padding: .4rem 0; color: var(--color-texto-suave); text-decoration: none; border-bottom: 2px solid transparent; }
.languages a[aria-current="page"] { color: var(--color-azul-linaje); border-color: var(--color-dorado-sello); }
.introduction { display: grid; grid-template-columns: 1.35fr 1fr; gap: clamp(2.5rem, 6vw, 6rem); align-items: center; max-width: var(--content-max); margin: 0 auto; padding: clamp(3.5rem, 6vw, 6rem) var(--page-x); }
.lead { max-width: 600px; margin-bottom: 2rem; color: var(--color-texto-suave); font-size: clamp(1.05rem, 1.5vw, 1.2rem); line-height: 1.75; }
.introduction-rule { width: 88px; height: 5px; background: var(--color-dorado-sello); }
.profile { padding: 1.8rem 0 0; border-top: 3px solid var(--color-dorado-sello); }
.profile-label { margin-bottom: .5rem; color: var(--color-texto-suave); font-size: .83rem; font-weight: 700; }
.profile h2 { margin-bottom: .3rem; font-size: clamp(1.9rem, 2.65vw, 2.6rem); }
.profile-role { margin-bottom: 1.1rem; color: var(--color-azul-linaje); font-weight: 700; }
.profile > p:not(.profile-role):not(.profile-label) { color: var(--color-texto-suave); font-size: .94rem; }
dl { display: grid; gap: 1.1rem; margin: 1.5rem 0 0; }
dt { margin-bottom: .25rem; color: var(--color-texto-suave); font-size: .76rem; font-weight: 700; }
dd { margin: 0; font-size: .95rem; font-weight: 650; }
.orcid-id { display: inline-block; font-variant-numeric: tabular-nums; }
.research-section { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: clamp(2rem, 5vw, 5.5rem); padding: clamp(2.75rem, 5vw, 4.8rem) max(var(--page-x), calc((100vw - var(--content-max)) / 2 + var(--page-x))); }
.section-heading p { max-width: 510px; margin-bottom: 0; color: var(--color-texto-suave); }
.work-section { border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); background: var(--surface-warm); }
.work-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 2rem; margin: -.45rem 0 0; padding: 0; list-style: none; }
.work-list li { display: flex; align-items: center; min-height: 64px; padding: 1rem 0; border-bottom: 1px solid var(--line-soft); color: var(--color-azul-linaje); font-size: .97rem; font-weight: 650; }
.method-section { border-bottom: 1px solid var(--line-soft); }
.method-copy { max-width: 630px; margin: 0; color: var(--color-texto-suave); font-size: 1.04rem; line-height: 1.85; }
.plan-section { border-bottom: 1px solid var(--line-soft); }
.plan-list { margin: 0; padding: 0; list-style: none; counter-reset: plan; }
.plan-list li { position: relative; padding: 0 0 1.45rem 3rem; counter-increment: plan; }
.plan-list li + li { padding-top: 1.45rem; border-top: 1px solid var(--line-soft); }
.plan-list li:last-child { padding-bottom: 0; }
.plan-list li::before { position: absolute; left: 0; top: .1rem; color: var(--color-azul-linaje); font-family: var(--font-heading); font-size: 1.25rem; content: "0" counter(plan); }
.plan-list li + li::before { top: 1.55rem; }
.plan-list p { max-width: 600px; margin: 0; color: var(--color-texto-suave); font-size: .95rem; }
.contact-section { display: flex; align-items: center; justify-content: space-between; gap: 3rem; padding: 3rem max(var(--page-x), calc((100vw - var(--content-max)) / 2 + var(--page-x))); background: var(--surface-warm); }
.contact-section h2 { font-size: 1.65rem; }
.contact-section p { max-width: 630px; margin: 0; color: var(--color-texto-suave); font-size: .95rem; }
.organization-link { flex-shrink: 0; padding: .8rem 1.3rem; border-radius: var(--radius-sm); color: #fff; background: var(--color-azul-linaje); font-size: .9rem; font-weight: 700; text-decoration: none; }
.organization-link:hover { background: var(--color-azul-lina); }
footer { display: flex; justify-content: space-between; gap: 1rem; padding: 1.7rem var(--page-x); color: var(--color-texto-suave); font-size: .78rem; border-top: 1px solid var(--line-soft); }

@media (min-width: 1600px) {
  .research-header, footer { padding-right: max(var(--page-x), calc((100vw - var(--content-max)) / 2 + var(--page-x))); padding-left: max(var(--page-x), calc((100vw - var(--content-max)) / 2 + var(--page-x))); }
}
@media (max-width: 760px) {
  .research-header { grid-template-columns: 1fr auto; gap: .5rem 1rem; min-height: 84px; }
  .brand { grid-row: 1 / 3; }
  .brand img { max-width: 96px; max-height: 64px; }
  .back-link { justify-self: end; align-self: end; font-size: .77rem; }
  .languages { justify-self: end; align-self: start; gap: 1rem; font-size: .78rem; }
  .introduction { grid-template-columns: 1fr; gap: 2.5rem; padding-top: 3rem; padding-bottom: 3rem; }
  h1 { font-size: clamp(2.6rem, 10vw, 3.5rem); }
  .lead { margin-bottom: 1.5rem; }
  .profile { padding-top: 1.55rem; }
  .profile h2 { font-size: 2.2rem; }
  .research-section { grid-template-columns: 1fr; gap: 1.75rem; }
  .work-list { gap: 0 1.1rem; }
  .work-list li { font-size: .91rem; line-height: 1.6; }
  .contact-section { flex-direction: column; align-items: flex-start; gap: 1.6rem; padding-top: 2.5rem; padding-bottom: 2.5rem; }
  footer { flex-direction: column; gap: .4rem; }
}
@media (max-width: 360px) {
  .work-list { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}