/* [Nombre] — estilos compartidos ES/EN. Sin dependencias externas. */

:root {
  --ink: #142033;
  --ink-soft: #334155;
  --paper: #f6f3ed;
  --paper-raised: #fffcf7;
  --sand: #e8e2d6;
  --line: #d4cec2;
  --navy: #15314c;
  --navy-hover: #0f2438;
  --teal: #165a4a;
  --teal-hover: #0f3f35;
  --teal-soft: #e3eee9;
  --focus: #0b5cab;
  --white: #ffffff;
  --header-h: 4.25rem;
  --measure: 40rem;
  --wrap: 68rem;
  --font-sans: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Palatino Linotype", Palatino, "Iowan Old Style", Georgia, "Times New Roman", Times, serif;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;
  --space-9: 6.5rem;
  --radius: 2px;
  --shadow: 0 1px 2px rgba(20, 32, 51, 0.06);
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--teal);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--teal-hover);
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  background: var(--navy);
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  top: var(--space-3);
}

.wrap {
  width: min(calc(100% - 2.5rem), var(--wrap));
  margin-inline: auto;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(246, 243, 237, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: 0.01em;
}

.brand:hover {
  color: var(--ink);
}

.brand-mark {
  flex: 0 0 auto;
  width: 1.75rem;
  height: 1.75rem;
}

.brand-name {
  font-size: 1.05rem;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.lang-switch a,
.lang-switch span {
  color: var(--ink-soft);
  text-decoration: none;
  padding: 0.15rem 0.2rem;
}

.lang-switch a:hover {
  color: var(--teal);
}

.lang-switch [aria-current="page"] {
  color: var(--ink);
  box-shadow: inset 0 -2px 0 var(--teal);
}

.lang-switch .sep {
  color: var(--line);
  font-weight: 400;
  padding: 0;
}

.nav-contact {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.9rem;
  background: var(--navy);
  color: var(--white);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius);
}

.nav-contact:hover {
  background: var(--navy-hover);
  color: var(--white);
}

.nav-link {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
}

.nav-link:hover {
  color: var(--teal);
}

/* Hero */

.hero {
  padding: var(--space-9) 0 var(--space-8);
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 var(--space-5);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
}

.hero h1 {
  margin: 0;
  max-width: 22ch;
  font-family: var(--font-serif);
  font-size: clamp(2.05rem, 4.4vw, 3.35rem);
  font-weight: 500;
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-7);
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.25rem;
  font: inherit;
  font-size: 1rem;
  font-weight: 650;
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--navy);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--navy-hover);
  color: var(--white);
}

.btn-ghost {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}

.btn-ghost:hover {
  background: var(--navy);
  color: var(--white);
}

/* Sections */

.section {
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--line);
}

.section-head {
  margin-bottom: var(--space-6);
  max-width: var(--measure);
}

.section-head h2,
.block h2 {
  margin: 0 0 var(--space-4);
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 2.6vw, 2.15rem);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.lead,
.prose p {
  margin: 0 0 var(--space-4);
  max-width: var(--measure);
  color: var(--ink);
}

.prose p:last-child {
  margin-bottom: 0;
}

.prose {
  max-width: 48rem;
}

/* Problem */

.problem-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-7);
  align-items: start;
}

.pullquote {
  margin: 0;
  padding: var(--space-5) 0 var(--space-5) var(--space-5);
  border-left: 3px solid var(--teal);
  font-family: var(--font-serif);
  font-size: 1.35rem;
  line-height: 1.4;
  color: var(--navy);
}

/* What we do */

.task-list {
  list-style: none;
  margin: var(--space-6) 0;
  padding: 0;
  display: grid;
  gap: var(--space-4);
}

.task-list li {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: var(--space-4);
  align-items: start;
  padding: var(--space-5);
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.icon {
  width: 1.6rem;
  height: 1.6rem;
  color: var(--teal);
  margin-top: 0.15rem;
}

.task-list h3,
.principles h3,
.metrics h3,
.steps h3 {
  margin: 0 0 0.25rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0;
  font-family: var(--font-sans);
}

.task-list p,
.principles p,
.metrics p,
.steps p {
  margin: 0;
  color: var(--ink-soft);
}

.note {
  margin: var(--space-5) 0 0;
  max-width: var(--measure);
  color: var(--ink-soft);
}

/* Process */

.steps {
  list-style: none;
  margin: 0 0 var(--space-6);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  max-width: 52rem;
}

.steps li {
  display: grid;
  grid-template-columns: 3.25rem 1fr;
  column-gap: var(--space-5);
  row-gap: 0.15rem;
  position: relative;
  padding: 1.35rem 0;
  background: transparent;
  border: none;
  border-top: 1px solid var(--line);
  border-radius: 0;
}

.steps li:last-child {
  border-bottom: 1px solid var(--line);
}

.step-num {
  grid-column: 1;
  grid-row: 1 / span 2;
  display: block;
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 500;
  line-height: 1.2;
  color: var(--teal);
  letter-spacing: 0.04em;
}

.steps h3,
.steps p {
  grid-column: 2;
}

.grant-note {
  max-width: 52rem;
  padding: var(--space-5);
  background: var(--teal-soft);
  border-radius: var(--radius);
}

.grant-note p {
  margin: 0;
  max-width: none;
  color: var(--ink);
}

/* Responsible AI */

.principles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

.principles li {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: var(--space-4);
  align-items: start;
}

/* Impact */

.metrics {
  list-style: none;
  margin: 0 0 var(--space-6);
  padding: 0;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-4);
}

.metrics li {
  grid-column: span 2;
  padding: var(--space-5);
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.metrics li:nth-child(4):nth-last-child(2),
.metrics li:nth-child(5):last-child {
  grid-column: span 3;
}

.method {
  max-width: var(--measure);
}

/* Team / partners */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
}

.block {
  padding: var(--space-6);
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.block p:last-of-type {
  margin-bottom: 0;
}

/* Contact */

.contact-panel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  padding: var(--space-7);
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius);
}

.contact-panel h2 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 2.4vw, 2rem);
  font-weight: 500;
  color: var(--white);
}

.contact-panel p {
  margin: 0;
  max-width: 36rem;
  color: #e6ecef;
}

.contact-panel a.email {
  color: var(--white);
  font-size: 1.25rem;
  font-weight: 650;
  text-decoration-color: rgba(255, 255, 255, 0.45);
}

.contact-panel a.email:hover {
  color: var(--white);
  text-decoration-color: var(--white);
}

.contact-panel .btn-primary {
  background: var(--white);
  color: var(--navy);
}

.contact-panel .btn-primary:hover {
  background: var(--sand);
  color: var(--navy);
}

.contact-panel :focus-visible {
  outline-color: #9ec5ff;
}

/* Footer */

.site-footer {
  padding: var(--space-7) 0 var(--space-6);
  background: var(--paper);
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-6);
  align-items: start;
}

.footer-brand {
  margin: 0 0 var(--space-2);
  color: var(--ink);
  font-weight: 700;
}

.privacy {
  margin: var(--space-3) 0 0;
  max-width: 46rem;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  align-items: flex-end;
}

.footer-nav a {
  color: var(--ink-soft);
  text-decoration: none;
}

.footer-nav a:hover {
  color: var(--teal);
  text-decoration: underline;
}

.contact-cta {
  margin-top: 1.25rem;
}

.contact-cta .btn {
  margin: 0;
}


/* Examples */

.example-featured {
  margin-bottom: var(--space-7);
  padding: var(--space-6);
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-top: 3px solid var(--teal);
  border-radius: var(--radius);
}

.example-featured-intro {
  margin-bottom: var(--space-5);
  max-width: 46rem;
}

.example-featured-intro .eyebrow {
  margin-bottom: var(--space-3);
}

.example-featured h3,
.example-area h3 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.example-featured-intro p:last-child {
  margin: 0;
  color: var(--ink-soft);
}

.example-parts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

.example-parts h4 {
  margin: 0 0 0.35rem;
  font-size: 1.02rem;
  font-weight: 700;
  font-family: var(--font-sans);
}

.example-parts p {
  margin: 0;
  color: var(--ink-soft);
}

.example-areas {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.example-area h3 {
  margin: 0 0 var(--space-2);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
}

.example-area ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: var(--space-6);
}

.example-area li {
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--line);
}

.example-area li strong {
  display: block;
  margin: 0 0 0.15rem;
  font-size: 0.98rem;
  font-weight: 700;
}

.example-area li p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.example-area--single ul {
  grid-template-columns: 1fr;
  max-width: calc(50% - (var(--space-6) / 2));
}

/* Responsive */


@media (max-width: 960px) {
  .example-parts,
  .example-area ul,
  .example-area--single ul {
    grid-template-columns: 1fr;
  }

  .example-area--single ul {
    max-width: none;
  }

  .metrics {
    grid-template-columns: 1fr 1fr;
  }

  .metrics li,
  .metrics li:nth-child(4):nth-last-child(2),
  .metrics li:nth-child(5):last-child {
    grid-column: auto;
  }

  .problem-grid,
  .split {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
}

@media (max-width: 720px) {
  .wrap {
    width: min(calc(100% - 1.75rem), var(--wrap));
  }

  .hero {
    padding: var(--space-7) 0 var(--space-6);
  }

  .section {
    padding: var(--space-7) 0;
  }

  .header-tools {
    gap: var(--space-3);
  }

  .nav-link {
    font-size: 0.85rem;
  }

  .nav-contact {
    display: none;
  }

  .steps,
  .metrics,
  .principles,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-nav {
    align-items: flex-start;
  }

  .contact-panel {
    padding: var(--space-5);
  }

  .pullquote {
    font-size: 1.2rem;
  }
}

@media print {
  .site-header {
    position: static;
    background: white;
  }

  .nav-contact,
  .hero-actions,
  .contact-panel .btn {
    display: none;
  }

  body,
  .site-header,
  .site-footer,
  .contact-panel {
    background: white;
    color: black;
  }

  .section,
  .hero {
    break-inside: avoid;
  }
}