:root {
  --color-graphite: #151515;
  --color-pure-white: #ffffff;
  --color-ink-black: #000000;
  --color-fog-border: #eeeeee;
  --color-steel: #505050;
  --color-silver-mist: #a4a4a4;
  --color-charcoal: #303030;
  --color-plaster: #f7f7f7;
  --color-prismic-violet: #8e44ec;
  --color-prismic-blue: #59b5f8;
  --color-prismic-green: #3bbb96;
  --color-lavender-wash: #e8c7ff;
  --color-lavender-cream: #f5e6ff;
  --color-sky-wash: #c3eefe;
  --color-peach-wash: #fcdac4;
  --color-peach-cream: #fef1e9;
  --color-mint-wash: #d4f2e9;
  --color-mint-cream: #e8f8f3;

  /* Verde y violeta oscurecidos solo para texto: los originales no llegan a AA sobre blanco. */
  --text-violet: #7a2fd6;
  --text-green: #1f7f63;

  --font-headings: "Inter Tight", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-copy: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --page-max-width: 1200px;
  --section-gap: 64px;
  --card-padding: 32px;
  --radius-cards: 12px;
  --radius-buttons: 8px;
  --gutter: 24px;

  color-scheme: light;
}

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

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

body {
  margin: 0;
  background: var(--color-pure-white);
  color: var(--color-graphite);
  font-family: var(--font-copy);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-headings);
  font-weight: 700;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

p {
  margin: 0;
  text-wrap: pretty;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

::selection {
  background: var(--color-lavender-wash);
}

:focus-visible {
  outline: 2px solid var(--color-prismic-violet);
  outline-offset: 2px;
}

.wrap {
  width: 100%;
  max-width: calc(var(--page-max-width) + var(--gutter) * 2);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.skip {
  position: absolute;
  left: 16px;
  top: -48px;
  padding: 8px 12px;
  background: var(--color-graphite);
  color: var(--color-pure-white);
  border-radius: var(--radius-buttons);
  z-index: 10;
}

.skip:focus {
  top: 16px;
}

/* Botones */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 24px;
  border-radius: var(--radius-buttons);
  font: 700 16px/1.4 var(--font-copy);
  text-decoration: none;
  transition:
    background-color 160ms ease,
    color 160ms ease,
    transform 150ms cubic-bezier(0.23, 1, 0.32, 1);
}

.btn:active {
  transform: scale(0.97);
}

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

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

.btn-secondary {
  border: 1.5px solid var(--color-graphite);
  color: var(--color-graphite);
  font-weight: 600;
}

.btn-secondary:hover {
  background: var(--color-plaster);
}

.btn-violet,
.btn-blue {
  border: 1.5px solid currentColor;
  font-weight: 600;
}

.btn-violet {
  color: var(--text-violet);
}

.btn-blue {
  color: #1f6ea8;
}

.btn-violet:hover {
  background: var(--color-lavender-cream);
}

.btn-blue:hover {
  background: #eef9fe;
}

.btn-sm {
  min-height: 40px;
  padding: 8px 16px;
}

.link {
  color: var(--color-graphite);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.link:hover {
  text-decoration-thickness: 2px;
}

/* Barra */

.nav {
  border-bottom: 1px solid var(--color-fog-border);
}

.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}

.wordmark {
  display: inline-flex;
  flex-shrink: 0;
  border-radius: 2px;
}

.wordmark img {
  width: auto;
  height: 32px;
}

.nav .btn {
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 4px;
}

.nav-links a {
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--color-graphite);
  text-decoration: none;
}

.nav-links a:hover {
  background: var(--color-plaster);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* El idioma actual en tinta plena; el otro en gris. Sin acento: el acento es para la acción. */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 40px;
  padding: 8px 12px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #767676; /* silver-mist no llega a AA sobre blanco */
  font: 600 14px/1 var(--font-copy);
  text-decoration: none;
}

.lang-toggle:hover {
  background: var(--color-plaster);
}

html[lang="es"] .lang-es,
html[lang="en"] .lang-en {
  color: var(--color-graphite);
}

/* Héroe */

.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 var(--section-gap);
}

.hero-copy {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  font-size: 56px;
  line-height: 1.1;
}

.accent-green {
  color: var(--text-green);
}

.hero-lead {
  max-width: 600px;
  margin: 24px auto 0;
  color: var(--color-steel);
  font-size: 18px;
  line-height: 1.56;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
}

.hero-note {
  margin-top: 24px;
  color: var(--color-steel);
  font-size: 14px;
  line-height: 1.43;
}

.hero-art {
  position: absolute;
  top: 120px;
  pointer-events: none;
}

.hero-art-left {
  left: calc(50% - 760px);
  width: 300px;
}

.hero-art-right {
  right: calc(50% - 760px);
  width: 320px;
}

.hero-art-mobile {
  display: none;
}

/* Secciones */

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

.section-head {
  max-width: 680px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-head h2 {
  font-size: 40px;
  line-height: 1.14;
}

.section-head p {
  margin-top: 16px;
  color: var(--color-steel);
  font-size: 18px;
  line-height: 1.56;
}

/* Banda oscura */

.workshop {
  background: var(--color-graphite);
  color: var(--color-pure-white);
}

.workshop .section-head p {
  color: var(--color-silver-mist);
}

.workshop-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--color-pure-white);
  color: var(--color-graphite);
  border-radius: var(--radius-cards);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.workshop-col {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 40px;
}

.workshop-col + .workshop-col {
  border-left: 1px solid var(--color-fog-border);
}

.workshop-col h3 {
  font-size: 28px;
  line-height: 1.33;
}

.workshop-col > p {
  font-size: 18px;
  line-height: 1.56;
  color: var(--color-steel);
}

.word-violet {
  color: var(--text-violet);
}

.word-blue {
  color: #1f6ea8;
}

.icon-list {
  display: grid;
  gap: 16px;
}

.icon-list li {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 12px;
  align-items: start;
}

.icon-list svg {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-violet {
  stroke: var(--color-prismic-violet);
}

.icon-blue {
  stroke: var(--color-prismic-blue);
}

.icon-green {
  stroke: var(--color-prismic-green);
}

.workshop-col .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* Tarjetas de ofertas */

.offers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.offer {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: var(--card-padding);
  border: 2px solid;
  border-radius: var(--radius-cards);
}

.offer-peach {
  background: var(--color-peach-cream);
  border-color: var(--color-peach-wash);
}

.offer-lavender {
  background: var(--color-lavender-cream);
  border-color: var(--color-lavender-wash);
}

.offer-sky {
  background: var(--color-pure-white);
  border-color: var(--color-sky-wash);
}

.offer-mint {
  background: var(--color-mint-cream);
  border-color: var(--color-mint-wash);
}

.offer-tag {
  align-self: flex-start;
  padding: 2px 10px;
  border-radius: 9999px;
  background: var(--color-pure-white);
  color: var(--color-steel);
  font-size: 14px;
  line-height: 1.43;
}

.offer h3 {
  font-size: 22px;
  line-height: 1.38;
}

.offer p {
  color: var(--color-graphite);
}

.offer dl {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid rgba(21, 21, 21, 0.1);
  font-size: 14px;
  line-height: 1.43;
}

.offer dt {
  color: var(--color-steel);
}

.offer dd {
  margin: 0 0 8px;
}

.offer-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  margin-top: auto;
}

.link-strong {
  font-weight: 700;
}

.link-muted {
  color: var(--color-steel);
}

/* Evidencia */

.evidence {
  background: var(--color-plaster);
}

.evidence-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.evidence h2 {
  font-size: 40px;
  line-height: 1.14;
}

.evidence-copy {
  display: grid;
  gap: 24px;
}

.evidence-copy > p {
  color: var(--color-steel);
  font-size: 18px;
  line-height: 1.56;
}

.evidence-note {
  color: var(--color-steel);
  font-size: 14px;
  line-height: 1.43;
}

.evidence-art {
  width: 100%;
  max-width: 460px;
  justify-self: center;
}

/* Proceso */

.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  counter-reset: step;
}

.step {
  padding-top: 24px;
  border-top: 2px solid var(--color-graphite);
}

.step-num {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  margin-bottom: 16px;
  border: 1.5px solid var(--color-prismic-violet);
  border-radius: 9999px;
  color: var(--text-violet);
  font: 700 14px/1 var(--font-copy);
}

.step h3 {
  font-size: 18px;
  line-height: 1.33;
}

.step p {
  margin-top: 8px;
  color: var(--color-steel);
}

/* Principios */

.principles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 48px;
}

.principle {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 16px;
  padding: 24px 0;
  border-top: 1px solid var(--color-fog-border);
}

.principle svg {
  width: 32px;
  height: 32px;
  padding: 6px;
  border: 1.5px solid var(--color-mint-wash);
  border-radius: 9999px;
  background: var(--color-mint-cream);
  fill: none;
  stroke: var(--text-green);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.principle h3 {
  font-size: 18px;
  line-height: 1.33;
}

.principle p {
  margin-top: 4px;
  color: var(--color-steel);
}

.identity {
  max-width: 720px;
  margin: 48px auto 0;
  padding: var(--card-padding);
  border: 1px solid var(--color-fog-border);
  border-radius: var(--radius-cards);
  text-align: center;
}

.identity p {
  font-size: 18px;
  line-height: 1.56;
}

.identity-by {
  margin-top: 16px;
  color: var(--color-steel);
  font-size: 14px;
  line-height: 1.43;
}

/* Cierre */

.closing {
  background: var(--color-graphite);
  color: var(--color-pure-white);
  text-align: center;
}

.closing h2 {
  max-width: 720px;
  margin: 0 auto;
  font-size: 40px;
  line-height: 1.14;
}

.closing p {
  max-width: 560px;
  margin: 16px auto 0;
  color: var(--color-silver-mist);
  font-size: 18px;
  line-height: 1.56;
}

.closing .hero-actions .btn-primary {
  background: var(--color-pure-white);
  color: var(--color-graphite);
}

.closing .hero-actions .btn-primary:hover {
  background: var(--color-fog-border);
}

.closing .btn-secondary {
  border-color: var(--color-silver-mist);
  color: var(--color-pure-white);
}

.closing .btn-secondary:hover {
  background: var(--color-charcoal);
}

/* Pie */

.footer {
  padding: 32px 0;
}

.footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  color: var(--color-steel);
  font-size: 14px;
  line-height: 1.43;
}

.footer a {
  color: var(--color-steel);
}

/* Adaptación */

@media (max-width: 1280px) {
  .hero-art-left {
    left: -120px;
  }

  .hero-art-right {
    right: -130px;
  }
}

@media (max-width: 1100px) {
  .hero-art {
    display: none;
  }

  .hero-art-mobile {
    display: block;
    width: min(320px, 80%);
    margin: 48px auto 0;
  }

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

  .steps {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 40px;
  }
}

@media (max-width: 860px) {
  .nav-links {
    display: none;
  }

  .workshop-card,
  .evidence-grid,
  .principles {
    grid-template-columns: minmax(0, 1fr);
  }

  .workshop-col + .workshop-col {
    border-left: 0;
    border-top: 1px solid var(--color-fog-border);
  }

  .evidence-grid {
    gap: 48px;
  }
}

@media (max-width: 640px) {
  :root {
    --gutter: 16px;
    --section-gap: 56px;
  }

  .nav .wrap {
    gap: 12px;
  }

  .nav-actions {
    gap: 4px;
  }

  .wordmark img {
    height: 26px;
  }

  .hero {
    padding-top: 56px;
  }

  .hero h1 {
    font-size: 40px;
    line-height: 1.14;
  }

  .section-head h2,
  .evidence h2,
  .closing h2 {
    font-size: 32px;
    line-height: 1.2;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .workshop-col {
    padding: 32px 24px;
  }

  .offers,
  .steps {
    grid-template-columns: 1fr;
  }

  .offer {
    padding: 24px;
  }

  .identity {
    padding: 24px;
  }
}

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

  .btn {
    transition: background-color 120ms ease;
  }

  .btn:active {
    transform: none;
  }
}