:root {
  --azul-sistemico: #17213f;
  --grafito: #262a33;
  --dorado: #c9a24a;
  --marfil: #f5f1e8;
  --petroleo: #2f5d62;
  --terracota: #9a4f3f;
  --blanco: #fff;
  --gris-suave: #e4dfd4;
  --texto-suave: #555b66;
  --azul-profundo: #10182f;
  --marfil-claro: #fbfaf6;
  --focus: #9a4f3f;
  --max-width: 72rem;
  --reading-width: 47rem;
  --radius: 1rem;
  --shadow-soft: 0 1rem 2.5rem rgba(23, 33, 63, 0.08);
  --shadow-card: 0 0.55rem 1.4rem rgba(23, 33, 63, 0.07);
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  color: var(--grafito);
  background: var(--marfil-claro);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
blockquote {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  color: var(--azul-sistemico);
  line-height: 1.2;
}

h1 {
  max-width: 17ch;
  margin-bottom: var(--space-4);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.25rem, 8vw, 4.75rem);
  font-weight: 700;
  letter-spacing: -0.035em;
}

h2 {
  margin-bottom: var(--space-3);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.8rem, 5vw, 3rem);
  letter-spacing: -0.025em;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.55rem);
}

a {
  color: inherit;
}

a:focus-visible,
[tabindex="-1"]:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.container {
  width: min(calc(100% - 2rem), var(--max-width));
  margin-inline: auto;
}

.narrow {
  max-width: var(--reading-width);
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-2) var(--space-3);
  color: var(--blanco);
  background: var(--azul-sistemico);
  border-radius: 0.25rem;
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: relative;
  z-index: 10;
  color: var(--blanco);
  background: var(--azul-sistemico);
  border-bottom: 1px solid rgba(201, 162, 74, 0.55);
}

.header-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-block: var(--space-3);
}

.brand {
  max-width: 30rem;
  color: var(--blanco);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.35;
  text-decoration: none;
}

.nav-list,
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list a,
.footer-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 0.35rem;
}

.nav-list a:hover,
.nav-list a[aria-current="page"],
.footer-nav a:hover,
.footer-nav a[aria-current="page"] {
  text-decoration-color: var(--dorado);
}

.hero {
  padding-block: var(--space-6) var(--space-7);
  color: var(--blanco);
  background: var(--azul-sistemico);
}

.hero h1,
.hero .eyebrow {
  color: var(--blanco);
}

.hero-content {
  display: grid;
  justify-items: start;
}

.hero-copy {
  max-width: 45rem;
  margin-bottom: var(--space-4);
  color: #e9eaf0;
  font-size: clamp(1rem, 2.4vw, 1.2rem);
}

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

.eyebrow,
.section-kicker,
.card-label,
.availability {
  margin-bottom: var(--space-2);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow,
.section-kicker,
.card-label {
  color: var(--petroleo);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.78rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 0.35rem;
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.035em;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: var(--azul-sistemico);
  background: var(--dorado);
  border-color: var(--dorado);
}

.button-primary:hover {
  background: #d6b45f;
  border-color: #d6b45f;
}

.button-secondary {
  color: var(--blanco);
  background: var(--petroleo);
  border-color: var(--petroleo);
}

.button-secondary:hover {
  background: #254c50;
}

.button-gold {
  color: var(--azul-sistemico);
  background: var(--dorado);
  border-color: var(--dorado);
}

.button-orientation {
  color: var(--azul-sistemico);
  background: transparent;
  border-color: var(--azul-sistemico);
}

.button-disabled {
  color: #53565c;
  background: #e2dfd8;
  border-color: #cbc7bd;
  cursor: not-allowed;
}

.microcopy {
  margin: var(--space-2) 0 0;
  font-size: 0.88rem;
}

.method-principle {
  border-block: 1px solid var(--dorado);
  background: var(--marfil);
}

.principle-list {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-4);
  color: var(--azul-sistemico);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.15rem;
  font-weight: 700;
  text-align: center;
}

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

.section-intro {
  max-width: var(--reading-width);
  margin-bottom: var(--space-5);
}

.selector-section {
  scroll-margin-top: 6rem;
  background: var(--marfil);
}

.selector-list {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.selector-option {
  display: grid;
  gap: 0.2rem;
  min-height: 58px;
  padding: var(--space-3);
  color: var(--grafito);
  background: rgba(255, 255, 255, 0.48);
  border: 1px solid #c9c3b6;
  border-left: 3px solid var(--petroleo);
  border-radius: 0.3rem;
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease;
}

.selector-option:hover {
  background: var(--blanco);
  border-color: var(--petroleo);
}

.selector-option span {
  font-weight: 650;
}

.selector-option small {
  color: var(--texto-suave);
}

.educational-note {
  display: inline-block;
  margin-bottom: 0;
  padding: var(--space-2) var(--space-3);
  color: var(--azul-sistemico);
  background: var(--marfil);
  border-left: 3px solid var(--dorado);
  font-weight: 650;
}

.diagnostics-grid {
  display: grid;
  gap: var(--space-4);
}

.diagnostic-card {
  display: flex;
  flex-direction: column;
  scroll-margin-top: 6rem;
  padding: clamp(1.25rem, 4vw, 2rem);
  background: var(--blanco);
  border: 1px solid var(--gris-suave);
  border-top: 3px solid var(--dorado);
  border-radius: var(--radius);
}

.diagnostic-card.is-highlighted,
.calibrator-card.is-highlighted {
  border-color: var(--terracota);
  box-shadow: 0 0 0 4px rgba(154, 79, 63, 0.16);
}

.card-unavailable {
  background: #f5f4f0;
  border-top-color: var(--terracota);
}

.card-topline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.card-number {
  color: var(--dorado);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.55rem;
  line-height: 1;
}

.availability {
  align-self: flex-start;
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  letter-spacing: 0.07em;
}

.availability-on {
  color: #214b40;
  background: #e1eee9;
}

.availability-review {
  color: #683429;
  background: #f1dfda;
}

.central-question {
  color: var(--petroleo);
  font-size: 1.08rem;
  font-weight: 750;
}

.card-useful {
  margin-block: var(--space-3) var(--space-4);
}

.card-useful h4,
.card-useful h3 {
  margin-bottom: var(--space-2);
  font-size: 1rem;
}

.card-useful ul {
  padding-left: 1.25rem;
}

.card-useful li + li {
  margin-top: 0.35rem;
}

.card-guidance,
.review-message {
  padding-left: var(--space-3);
  border-left: 2px solid var(--dorado);
  font-weight: 650;
}

blockquote {
  margin-inline: 0;
  padding: var(--space-3);
  color: var(--azul-sistemico);
  background: var(--marfil);
  border-left: 3px solid var(--terracota);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.08rem;
}

.card-action {
  align-self: stretch;
  margin-top: auto;
}

.calibrator-section {
  color: var(--blanco);
  background: var(--grafito);
}

.calibrator-card {
  display: grid;
  gap: var(--space-4);
  scroll-margin-top: 6rem;
  padding: clamp(1.4rem, 5vw, 3rem);
  border: 1px solid var(--dorado);
  border-radius: var(--radius);
}

.calibrator-card h2,
.calibrator-card h3,
.calibrator-card .central-question,
.calibrator-card .card-label {
  color: var(--blanco);
}

.calibrator-useful {
  margin: 0;
}

.calibrator-action {
  display: grid;
  align-content: center;
  justify-items: stretch;
  text-align: center;
}

.method-map-section {
  background: var(--marfil);
}

.method-map {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.method-map li:not(.map-arrow) {
  display: grid;
  gap: 0.2rem;
  padding: var(--space-3);
  background: var(--blanco);
  border: 1px solid var(--gris-suave);
  border-top: 2px solid var(--dorado);
  text-align: center;
}

.method-map strong {
  color: var(--azul-sistemico);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.method-map span {
  font-size: 0.92rem;
}

.map-arrow {
  color: var(--dorado);
  font-size: 1.5rem;
  text-align: center;
}

.recommendation-grid {
  display: grid;
  gap: var(--space-3);
}

.recommendation-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-4);
  border: 1px solid var(--gris-suave);
  border-radius: var(--radius);
}

.recommendation-card .button {
  align-self: stretch;
  margin-top: auto;
}

.recommendation-unavailable {
  background: var(--marfil);
  border-style: dashed;
}

.closing-section {
  color: var(--blanco);
  background: var(--azul-sistemico);
  text-align: center;
}

.closing-section h2 {
  color: var(--blanco);
}

.closing-steps p {
  margin-bottom: var(--space-1);
}

.closing-principle {
  margin: var(--space-5) 0 0;
  color: var(--dorado);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.35rem;
  font-weight: 700;
}

.educational-disclaimer {
  padding-block: var(--space-5);
  background: var(--marfil);
  border-bottom: 1px solid var(--dorado);
}

.educational-disclaimer h2 {
  font-size: 1.4rem;
}

.educational-disclaimer p {
  margin-bottom: var(--space-1);
  font-size: 0.92rem;
}

.site-footer {
  padding-block: var(--space-5);
  color: #e5e7ec;
  background: var(--grafito);
}

.footer-inner {
  display: grid;
  gap: var(--space-4);
}

.footer-brand {
  margin-bottom: var(--space-1);
  color: var(--blanco);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
}

.copyright {
  margin: 0;
  font-size: 0.82rem;
}

/* Capa visual del Centro: jerarquía, orientación y profundidad sobria. */
.site-header {
  background: var(--azul-profundo);
}

.hero {
  position: relative;
  overflow: hidden;
}

.hero::before,
.hero::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.hero::before {
  top: 2rem;
  right: -8rem;
  width: 14rem;
  height: 14rem;
  border: 1px solid rgba(201, 162, 74, 0.32);
  border-radius: 50%;
}

.hero::after {
  right: 2.5rem;
  bottom: -2rem;
  width: 1px;
  height: 9rem;
  background: rgba(201, 162, 74, 0.45);
  transform: rotate(36deg);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero .eyebrow {
  padding: 0.42rem 0.7rem;
  border: 1px solid rgba(201, 162, 74, 0.52);
  border-radius: 999px;
}

.hero h1 {
  position: relative;
  padding-bottom: var(--space-4);
}

.hero h1::after {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 4.5rem;
  height: 3px;
  background: var(--dorado);
  content: "";
}

.button {
  border-radius: 0.55rem;
}

.button-primary {
  box-shadow: 0 0.45rem 1rem rgba(10, 15, 30, 0.14);
}

.button-gold {
  box-shadow: 0 0.5rem 1.2rem rgba(0, 0, 0, 0.2);
}

.method-principle {
  box-shadow: inset 0 -1px 0 rgba(23, 33, 63, 0.04);
}

.principle-list span {
  position: relative;
  padding-inline: var(--space-2);
}

.selector-section .narrow {
  padding: clamp(1.25rem, 4vw, 2.5rem);
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(201, 162, 74, 0.42);
  border-radius: calc(var(--radius) + 0.25rem);
  box-shadow: var(--shadow-soft);
}

.selector-list {
  counter-reset: selector;
}

.selector-option {
  position: relative;
  padding: var(--space-3) var(--space-3) var(--space-3) 3.4rem;
  border-radius: 0.65rem;
}

.selector-option::before {
  position: absolute;
  top: 50%;
  left: 0.85rem;
  display: grid;
  width: 1.75rem;
  height: 1.75rem;
  place-items: center;
  color: var(--petroleo);
  border: 1px solid rgba(47, 93, 98, 0.45);
  border-radius: 50%;
  content: counter(selector, decimal-leading-zero);
  counter-increment: selector;
  font-size: 0.65rem;
  font-weight: 800;
  transform: translateY(-50%);
}

.diagnostics-section {
  background: var(--marfil-claro);
}

.diagnostics-section .section-intro,
.start-section .section-intro {
  position: relative;
  padding-left: var(--space-4);
}

.diagnostics-section .section-intro::before,
.start-section .section-intro::before {
  position: absolute;
  top: 0.2rem;
  bottom: 0.2rem;
  left: 0;
  width: 2px;
  background: var(--dorado);
  content: "";
}

.diagnostic-card {
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.diagnostic-card::after {
  position: absolute;
  top: 0;
  right: 0;
  width: 3.5rem;
  height: 3.5rem;
  border-right: 1px solid rgba(201, 162, 74, 0.32);
  border-bottom: 1px solid rgba(201, 162, 74, 0.32);
  border-bottom-left-radius: 100%;
  content: "";
  pointer-events: none;
}

.diagnostic-card:hover {
  border-color: rgba(201, 162, 74, 0.78);
  box-shadow: 0 1rem 2.25rem rgba(23, 33, 63, 0.11);
  transform: translateY(-2px);
}

.card-unavailable {
  border-style: dashed;
  box-shadow: none;
}

.card-unavailable::after {
  border-color: rgba(154, 79, 63, 0.25);
}

.card-unavailable:hover {
  border-color: rgba(154, 79, 63, 0.6);
  box-shadow: none;
  transform: none;
}

.card-number {
  font-size: 2rem;
}

.card-useful ul {
  margin-bottom: 0;
}

.card-useful li::marker {
  color: var(--dorado);
}

.calibrator-section {
  position: relative;
  overflow: hidden;
}

.calibrator-section::before {
  position: absolute;
  top: 0;
  left: 50%;
  width: min(70%, 52rem);
  height: 1px;
  background: var(--dorado);
  content: "";
  transform: translateX(-50%);
}

.calibrator-card {
  position: relative;
  background: rgba(23, 33, 63, 0.18);
  box-shadow: 0 1.5rem 3rem rgba(0, 0, 0, 0.16);
}

.method-map {
  counter-reset: method-map;
}

.method-map li:not(.map-arrow) {
  position: relative;
  padding: 2.5rem var(--space-3) var(--space-3);
  box-shadow: 0 0.35rem 1rem rgba(23, 33, 63, 0.05);
}

.method-map li:not(.map-arrow)::before {
  position: absolute;
  top: 0.55rem;
  left: 50%;
  display: grid;
  width: 1.35rem;
  height: 1.35rem;
  place-items: center;
  color: var(--blanco);
  background: var(--petroleo);
  border-radius: 50%;
  content: counter(method-map);
  counter-increment: method-map;
  font-size: 0.65rem;
  font-weight: 800;
  transform: translateX(-50%);
}

.recommendation-card {
  background: var(--blanco);
  box-shadow: var(--shadow-card);
}

.recommendation-unavailable {
  box-shadow: none;
}

.closing-section::before {
  display: block;
  width: 4rem;
  height: 3px;
  margin: 0 auto var(--space-5);
  background: var(--dorado);
  content: "";
}

.site-footer {
  border-top: 1px solid rgba(201, 162, 74, 0.45);
}

@media (min-width: 40rem) {
  .header-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .principle-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .diagnostics-grid,
  .recommendation-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .recommendation-grid article:last-child {
    grid-column: 1 / -1;
  }

  .footer-inner {
    grid-template-columns: 1fr auto;
  }

  .copyright {
    grid-column: 1 / -1;
  }
}

@media (min-width: 56rem) {
  .site-header {
    position: sticky;
    top: 0;
  }

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

  .calibrator-card {
    grid-template-columns: 1.2fr 1fr 0.85fr;
    align-items: center;
  }

  .method-map {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: stretch;
  }

  .map-arrow {
    display: grid;
    place-items: center;
    transform: rotate(-90deg);
  }

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

  .recommendation-grid article:last-child {
    grid-column: auto;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto;
    transition-duration: 0.01ms;
    animation-duration: 0.01ms;
    animation-iteration-count: 1;
  }
}

@media print {
  body {
    color: #000;
    background: #fff;
    font-size: 10pt;
  }

  .site-header,
  .skip-link,
  .hero .button,
  .selector-section,
  .card-action,
  .calibrator-action,
  .recommendation-grid,
  .site-footer {
    display: none;
  }

  .hero,
  .calibrator-section,
  .closing-section,
  .method-map-section,
  .educational-disclaimer {
    color: #000;
    background: #fff;
  }

  .hero h1,
  .hero .eyebrow,
  .calibrator-card h2,
  .calibrator-card h3,
  .calibrator-card .central-question,
  .calibrator-card .card-label,
  .closing-section h2,
  .closing-principle {
    color: #000;
  }

  .section,
  .hero {
    padding-block: 1rem;
  }

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

  .diagnostic-card,
  .calibrator-card {
    break-inside: avoid;
    border-color: #777;
    box-shadow: none;
  }
}