:root {
  --bg-dark: #0d0f12;
  --bg-dark-2: #13171c;
  --bg-light: #f5f7fa;
  --bg-offwhite: #eef2f5;
  --surface-dark: #171c22;
  --surface-light: #ffffff;
  --surface-light-2: #edf3f7;
  --text-light: #f3f7fb;
  --text-mid: #c1cbd6;
  --text-dark: #10161d;
  --text-dark-soft: #44515f;
  --border-dark: rgba(150, 190, 220, 0.16);
  --border-light: rgba(16, 22, 29, 0.08);
  --accent: #2ee6ff;
  --accent-soft: rgba(46, 230, 255, 0.14);
  --accent-strong: rgba(46, 230, 255, 0.28);
  --shadow-dark: 0 20px 60px rgba(0, 0, 0, 0.28);
  --shadow-light: 0 16px 40px rgba(8, 20, 32, 0.08);
  --container: 1180px;
  --nav-h: 84px;
  --radius-sm: 14px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --font-hero: "Anton", sans-serif;
  --font-display: "Chakra Petch", sans-serif;
  --font-body: "Inter", sans-serif;
  --transition: 180ms ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--bg-light);
  line-height: 1.58;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 1000;
  padding: 0.75rem 1rem;
  background: #fff;
  color: #000;
  border-radius: 10px;
  transition: top var(--transition);
}

.skip-link:focus {
  top: 16px;
}

.back-home {
  font-size: 0.9rem;
  color: #9aa4af;
  text-decoration: none;
  margin-right: 1rem;
}

.back-home:hover {
  color: #ffffff;
}

.failure-center {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.failure-list {
  margin: 2rem 0;
}

.failure-list p {
  margin: 0.8rem 0;
  font-size: 1.1rem;
  color: #e2e8f0; /* MÁS CLARO → se ve */
}

.failure-close {
  margin-top: 2rem;
  font-weight: 600;
  color: #ffffff; /* remate fuerte */
}

.section--dark {
  position: relative;
}

.section--dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(10, 12, 16, 0.6);
  z-index: 0;
}

.section--dark .container {
  position: relative;
  z-index: 1;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  min-height: var(--nav-h);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(8, 10, 13, 0.86);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: var(--nav-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.brand-logo {
  width: 172px;
  height: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1 1 auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-list a {
  color: var(--text-mid);
  font-size: 0.95rem;
  transition: color var(--transition);
}

.nav-list a:hover,
.nav-list a:focus-visible,
.footer-links a:hover,
.footer-links a:focus-visible,
.contact-email:hover,
.contact-email:focus-visible {
  color: var(--text-light);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.lang-toggle,
.nav-cta {
  min-height: 42px;
  padding: 0 1rem;
  border-radius: 999px;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-mid);
  border: 1px solid var(--border-dark);
  background: rgba(255, 255, 255, 0.02);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--accent-strong);
  color: var(--text-light);
  background: rgba(46, 230, 255, 0.06);
}

.lang-divider {
  opacity: 0.5;
}

.hero {
  position: relative;
  overflow: clip;
  color: var(--text-light);
  background:
    radial-gradient(circle at top right, rgba(46, 230, 255, 0.1), transparent 26%),
    linear-gradient(180deg, #101317 0%, #0d0f12 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.015) 42%, transparent 43%),
    linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.02) 68%, transparent 69%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  min-height: calc(100svh - var(--nav-h));
  display: grid;
  align-items: center;
  padding: 108px 0 96px;
}

.eyebrow,
.section-label {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow,
body[data-lang="es"] .lang-toggle .lang-option:first-child,
body[data-lang="en"] .lang-toggle .lang-option:last-child {
  color: var(--accent);
}

.section-label {
  display: none;
}

.hero-copy {
  max-width: 980px;
}

.hero-wordmark {
  margin: 0 0 1.2rem;
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-wordmark::after {
  content: ".";
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.hero-title,
.section-title,
.principle-card h3 {
  margin: 0;
  font-family: var(--font-display);
  line-height: 0.94;
  letter-spacing: -0.03em;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 5.6vw, 4.75rem);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.025em;
  text-transform: uppercase;
  max-width: 16ch;
}

.title-dot {
  color: var(--accent);
}

.hero-lead {
  margin: 1.2rem 0 0;
  max-width: 24ch;
  font-size: clamp(1.3rem, 2.8vw, 2rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
  font-weight: 600;
  color: var(--text-light);
}

.hero-subtitle,
.section-intro {
  margin: 1.2rem 0 0;
  font-size: 1.26rem;
  line-height: 1.64;
}

.hero-subtitle {
  max-width: 66ch;
  color: rgba(243, 247, 251, 0.8);
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 1.3rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition:
    transform var(--transition),
    background var(--transition),
    border-color var(--transition),
    color var(--transition);
}

.button:hover,
.button:focus-visible,
.nav-cta:hover,
.nav-cta:focus-visible,
.lang-toggle:hover,
.lang-toggle:focus-visible {
  transform: translateY(-1px);
}

.button--primary {
  background: var(--accent);
  color: #031116;
  box-shadow: 0 10px 30px rgba(46, 230, 255, 0.18);
}

.button--primary:hover,
.button--primary:focus-visible {
  background: #74f0ff;
}

.button--secondary {
  color: var(--text-light);
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.03);
}

.button--secondary:hover,
.button--secondary:focus-visible {
  background: rgba(255, 255, 255, 0.08);
}

.button--footer {
  min-height: 42px;
  padding: 0 1rem;
  color: var(--text-light);
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.03);
}

.button--footer:hover,
.button--footer:focus-visible {
  background: rgba(255, 255, 255, 0.08);
}

.section {
  position: relative;
  padding: 88px 0;
}

.section--light {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.65), rgba(255, 255, 255, 0.65)),
    var(--bg-light);
  color: var(--text-dark);
}

.section--dark {
  background:
    radial-gradient(circle at top right, rgba(46, 230, 255, 0.08), transparent 28%),
    linear-gradient(180deg, #101317 0%, #0d0f12 100%);
  color: var(--text-light);
}

.section--stone {
  background: var(--bg-offwhite);
  color: var(--text-dark);
}

.section--contact {
  background:
    radial-gradient(circle at bottom left, rgba(46, 230, 255, 0.12), transparent 30%),
    linear-gradient(180deg, #15191d 0%, #0d0f12 100%);
  color: var(--text-light);
}

.section-heading {
  max-width: 860px;
  margin-bottom: 2.5rem;
}

.narrative-grid > .section-heading,
.split-section > .section-heading {
  margin-top: 0;
  align-self: start;
}

.section-heading--compact {
  margin-bottom: 0;
}

.section-heading--narrow {
  max-width: 760px;
}

.section--light .section-label,
.section--stone .section-label {
  color: #159db0;
}

.section-title {
  font-size: clamp(2.25rem, 4.4vw, 3.8rem);
  max-width: 20ch;
}

.section--light .section-intro,
.section--stone .section-intro,
.section-closeout,
.principle-card p,
.fit-item p {
  color: var(--text-dark-soft);
}

.section--dark .section-intro,
.decide-step p,
.contact-email,
.footer-inner {
  color: var(--text-mid);
}

.narrative-grid {
  display: grid;
  grid-template-columns: minmax(360px, 1.15fr) minmax(0, 0.85fr);
  gap: 2rem 3rem;
  align-items: start;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(300px, 0.95fr) minmax(0, 1.05fr);
  gap: 2rem 3rem;
  align-items: start;
}

.section-body,
.split-copy {
  max-width: 720px;
  align-self: start;
}

.section-body > :first-child,
.split-copy > :first-child {
  margin-top: 0;
}

.section-body--full {
  grid-column: 2;
  max-width: 720px;
  margin-top: 0;
  align-self: start;
}

.section-body--full > :first-child {
  margin-top: 0;
}

.section-closeout {
  margin: 1.4rem 0 0;
  font-size: 1.18rem;
  font-weight: 600;
}

.signal-grid,
.principles-grid,
.fit-list {
  display: grid;
  gap: 1rem;
}

.signal-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 2rem;
}

.signal-grid--five {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.principles-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.signal-card,
.principle-card,
.fit-item {
  position: relative;
  padding: 1.1rem 0;
}

.signal-card,
.principle-card,
.fit-item {
  border-radius: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  border-top: 1px solid var(--border-light);
}

.section--dark .signal-card {
  border-top-color: var(--border-dark);
}

.card-icon,
.decide-icon,
.contact-icon {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.card-icon {
  margin-bottom: 0.85rem;
}

.signal-card p,
.principle-card p,
.decide-step p,
.fit-item p {
  margin: 0;
  font-size: 1.12rem;
  line-height: 1.6;
}

.signal-card p {
  color: var(--text-dark-soft);
}

.section--dark .signal-card p {
  color: var(--text-mid);
}

.fit-item p::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 0.7rem;
  margin-bottom: 0.12rem;
  border-radius: 999px;
  background: var(--accent);
}

.pattern-list,
.impact-list {
  display: grid;
  gap: 0.9rem;
}

.pattern-list {
  max-width: 940px;
}

.pattern-list p,
.impact-list p {
  margin: 0;
  padding: 0;
  font-size: 1.16rem;
  line-height: 1.6;
}

.pattern-list p {
  color: var(--text-light);
}

.pattern-list p:first-child {
  font-size: 1.2rem;
  line-height: 1.5;
  color: var(--text-light);
}

.pattern-list p:not(:first-child) {
  position: relative;
  padding-left: 1.15rem;
}

.pattern-list p:not(:first-child)::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75rem;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
}

.impact-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 2rem;
  max-width: 980px;
}

.impact-list p {
  color: var(--text-dark);
  font-weight: 500;
}

.section-quote {
  margin: 1.8rem 0 0;
  max-width: 56ch;
  font-size: 1.2rem;
  line-height: 1.45;
  color: var(--text-light);
}

.principle-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
}

.fit-list {
  grid-template-columns: 1fr 1fr;
  gap: 0 2rem;
}

.fit-list--triple {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.fit-item h3 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.section--decide::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 0%, rgba(46, 230, 255, 0.05) 50%, transparent 100%);
  pointer-events: none;
}

.decide-list {
  display: grid;
  gap: 1rem;
}

.decide-step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 1rem;
  align-items: start;
  padding-top: 1rem;
  border-top: 1px solid var(--border-dark);
}

.contact-inner {
  display: grid;
  justify-items: start;
}

.contact-icon {
  margin-bottom: 1rem;
}

.contact-email {
  font-size: 1.06rem;
}

.site-footer {
  background: #0a0c0f;
  color: var(--text-mid);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-inner {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.2rem;
}

.footer-inner p {
  margin: 0;
  font-size: 0.92rem;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.footer-email {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.96rem;
}

.footer-email img {
  width: 14px;
  height: 14px;
  opacity: 0.9;
}

.offers-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.offer-card {
  display: grid;
  gap: 1rem;
  align-content: start;
  padding: 1.4rem 1.5rem 1.5rem;
  border: 1px solid var(--border-light);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.7);
}

.offer-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.28rem;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.offer-description,
.offer-outcome,
.offer-timing {
  margin: 0;
  color: var(--text-dark-soft);
  font-size: 1.06rem;
  line-height: 1.62;
}

.offer-bullets {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.offer-bullets li {
  position: relative;
  padding-left: 1rem;
  color: var(--text-dark);
  font-size: 1.04rem;
  line-height: 1.58;
}

.offer-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7rem;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
}

.offer-outcome {
  font-weight: 600;
}

.offer-timing {
  font-size: 0.95rem;
  color: #4f6070;
}

.offer-bullets li:empty,
.offer-timing:empty,
.offer-outcome:empty,
.fit-item p:empty {
  display: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (max-width: 1100px) {
  .narrative-grid,
  .split-section {
    grid-template-columns: 1fr;
  }

  .section-body--full {
    grid-column: auto;
    margin-top: 0;
  }

  .signal-grid,
  .principles-grid,
  .fit-list,
  .offers-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .signal-grid--five {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  :root {
    --nav-h: auto;
  }

  .header-inner {
    min-height: unset;
    padding-block: 1rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  .brand {
    width: 100%;
    justify-content: center;
  }

  .main-nav {
    order: 3;
    width: 100%;
  }

  .nav-list {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem 1.25rem;
  }

  .header-actions,
  .contact-actions {
    justify-content: center;
  }

  .signal-grid,
  .fit-list,
  .impact-list,
  .offers-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .section {
    padding: 72px 0;
  }

  .hero-inner {
    min-height: auto;
    padding: 80px 0 48px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-links {
    justify-items: start;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 24px), var(--container));
  }

  .hero-title {
    font-size: clamp(2.75rem, 12vw, 3.6rem);
    line-height: 0.98;
  }

  .hero-wordmark {
    font-size: 1.05rem;
  }

  .hero-lead {
    max-width: 100%;
    font-size: clamp(1.35rem, 6vw, 1.7rem);
  }

  .section-title {
    font-size: clamp(1.7rem, 8vw, 2.4rem);
  }

  .signal-grid,
  .fit-list,
  .impact-list,
  .offers-grid {
    grid-template-columns: 1fr;
  }

  .signal-card,
  .principle-card,
  .fit-item {
    padding: 1.25rem;
  }

  .nav-cta,
  .lang-toggle,
  .button {
    width: 100%;
    justify-content: center;
  }

  .header-actions {
    width: 100%;
    flex-direction: column;
  }

  .decide-step {
    grid-template-columns: 1fr;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

}

.method-hero {
  min-height: auto;
  padding: 92px 0 72px;
}

.method-hero .hero-copy {
  max-width: 760px;
}

.method-hero .hero-title {
  max-width: 13ch;
  font-size: clamp(3rem, 5.2vw, 4.8rem);
}

.model-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  align-items: stretch;
}

.model-card,
.path-card,
.focus-panel {
  border-radius: 20px;
  border: 1px solid var(--border-light);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow-light);
}

.section--dark .model-card,
.section--dark .path-card,
.section--dark .focus-panel {
  border-color: var(--border-dark);
  background: rgba(255, 255, 255, 0.03);
  box-shadow: none;
}

.model-card {
  position: relative;
  padding: 1.5rem;
}

.model-card::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -0.8rem;
  transform: translateY(-50%);
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--accent);
}

.model-card:last-child::after {
  display: none;
}

.model-label {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: 0.88rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.model-card h3,
.path-card h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  line-height: 1;
  letter-spacing: -0.02em;
}

.model-subtitle {
  margin: 0 0 0.9rem;
  color: var(--text-dark-soft);
  font-weight: 600;
}

.section--dark .model-subtitle {
  color: var(--text-mid);
}

.model-list,
.check-list,
.path-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.model-list li,
.check-list li,
.path-list li {
  position: relative;
  padding-left: 1rem;
  font-size: 1.04rem;
  line-height: 1.58;
}

.model-list li::before,
.check-list li::before,
.path-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72rem;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
}

.check-list {
  max-width: 860px;
  gap: 0.95rem;
}

.check-list li {
  padding: 0 0 0.2rem 2.1rem;
  font-size: 1.12rem;
  border-bottom: 1px solid var(--border-light);
}

.section--dark .check-list li {
  border-bottom-color: var(--border-dark);
}

.check-list li::before {
  left: 0;
  top: 0.52rem;
  width: 14px;
  height: 14px;
  background: transparent;
  border: 2px solid var(--accent);
  box-shadow: inset 0 0 0 3px transparent;
}

.check-list li::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 0.92rem;
  width: 5px;
  height: 9px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
}

.focus-panel {
  max-width: 760px;
  padding: 1.5rem 1.6rem;
}

.focus-panel p {
  margin: 0 0 1rem;
  font-size: 1.18rem;
  font-weight: 600;
  line-height: 1.45;
}

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

.paths-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.path-card {
  padding: 1.45rem 1.5rem;
}

.path-intro {
  margin: 0 0 1rem;
  color: var(--text-dark-soft);
}

.section--dark .path-intro {
  color: var(--text-mid);
}

.role-copy,
.failure-copy {
  max-width: 720px;
}

.failure-copy p {
  margin: 0 0 0.95rem;
}

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

.final-line {
  text-align: center;
}

.final-line .section-title {
  max-width: 18ch;
  margin-inline: auto;
}

@media (max-width: 1100px) {
  .model-flow,
  .paths-grid {
    grid-template-columns: 1fr;
  }

  .model-card::after {
    top: auto;
    right: auto;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%) rotate(90deg);
  }
}