/* ============================================
   INFOTRÁMITES.CO — DESIGN SYSTEM
   Versión: 1.0 | Julio 2026
   Stack: HTML estático + CSS + Vanilla JS
   ============================================ */

/* ---------- TOKENS ---------- */
:root {
  /* Primarios (azul) */
  --color-primary: #1f54d6;
  --color-primary-dark: #1a45b0;
  --color-primary-light: #eaf0fd;
  --color-primary-medium: #3f6fe0;

  /* Acento (unificado al azul, sin ámbar) */
  --color-accent: #1f54d6;
  --color-accent-dark: #1a45b0;
  --color-accent-light: #eaf0fd;

  /* Semánticos */
  --color-success: #1A8754;
  --color-success-light: #E6F5ED;
  --color-warning: #D4860A;
  --color-warning-light: #FFF3E0;
  --color-error: #C62828;
  --color-error-light: #FDECEA;
  --color-info: #1f54d6;
  --color-info-light: #eaf0fd;

  /* Neutrales */
  --color-text: #111114;
  --color-text-secondary: #3a3a44;
  --color-text-muted: #6b7280;
  --color-border: #e6e6e8;
  --color-border-light: #f0f0f2;
  --color-bg: #FFFFFF;
  --color-bg-alt: #f4f6fb;
  --color-bg-dark: #13204e;

  /* Tipografía */
  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body: 'Public Sans', system-ui, -apple-system, sans-serif;

  /* Espaciado */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Bordes */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Sombras */
  --shadow-sm: 0 1px 3px rgba(26, 26, 46, 0.06);
  --shadow-md: 0 4px 12px rgba(26, 26, 46, 0.08);
  --shadow-lg: 0 8px 30px rgba(26, 26, 46, 0.10);
  --shadow-tool: 0 2px 20px rgba(31, 84, 214, 0.10);

  /* Transiciones */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;

  /* Contenedores */
  --container-max: 720px;
  --container-wide: 1080px;
  --container-padding: 1.25rem;
}

@media (min-width: 1024px) {
  :root {
    --container-padding: 2rem;
  }
}


/* ---------- RESET ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-primary-medium);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

ul, ol {
  padding-left: var(--space-lg);
}

table {
  border-collapse: collapse;
  width: 100%;
}


/* ---------- LAYOUT ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container--wide {
  max-width: var(--container-wide);
}

.section {
  padding: var(--space-2xl) 0;
}

.section--alt {
  background: var(--color-bg-alt);
}


/* ---------- TIPOGRAFÍA ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--color-text);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: 1.75rem; font-weight: 700; margin-bottom: var(--space-md); }
h2 { font-size: 1.375rem; font-weight: 700; margin-top: var(--space-2xl); margin-bottom: var(--space-md); }
h3 { font-size: 1.125rem; font-weight: 600; margin-top: var(--space-xl); margin-bottom: var(--space-sm); }
h4 { font-size: 1rem; font-weight: 600; margin-top: var(--space-lg); margin-bottom: var(--space-sm); }

@media (min-width: 1024px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.375rem; }
}

p {
  margin-bottom: var(--space-md);
}

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

.text-lg {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
}

@media (min-width: 1024px) {
  .text-lg { font-size: 1.125rem; }
}

.text-small {
  font-size: 0.875rem;
  letter-spacing: 0.02em;
}

.text-xs {
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
}


/* ---------- HEADER ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border-light);
  backdrop-filter: blur(8px);
}

.header > .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem;
}

@media (min-width: 1024px) {
  .header > .container { height: 4rem; }
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.125rem;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.header__logo-icon {
  font-size: 1.375rem;
}

.header__menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.header__menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition-base);
}

.header__menu-btn[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.header__menu-btn[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.header__menu-btn[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.header__nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md) var(--container-padding);
  box-shadow: var(--shadow-md);
}

.header__nav.is-open {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.header__nav a {
  display: block;
  padding: var(--space-sm) 0;
  text-decoration: none;
  font-weight: 500;
  color: var(--color-text);
  font-size: 0.9375rem;
}

.header__nav a:hover {
  color: var(--color-primary);
}

@media (min-width: 1024px) {
  .header__menu-btn { display: none; }

  .header__nav {
    display: flex !important;
    position: static;
    flex-direction: row;
    gap: var(--space-lg);
    padding: 0;
    border: none;
    box-shadow: none;
    background: transparent;
  }

  .header__nav a {
    padding: var(--space-xs) 0;
    font-size: 0.875rem;
  }
}


/* ---------- BREADCRUMB ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.breadcrumb__sep {
  color: var(--color-border);
  user-select: none;
}

.breadcrumb__current {
  color: var(--color-text-secondary);
  font-weight: 500;
}


/* ---------- PAGE HERO ---------- */
.page-hero {
  padding: var(--space-xl) 0 var(--space-2xl);
  border-bottom: 1px solid var(--color-border-light);
}

.page-hero h1 {
  max-width: 640px;
}

.page-hero__intro {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-top: var(--space-sm);
  line-height: 1.7;
}

@media (min-width: 1024px) {
  .page-hero {
    padding: var(--space-2xl) 0 var(--space-3xl);
  }
  .page-hero__intro {
    font-size: 1.125rem;
  }
}


/* ---------- BADGE ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.badge--update {
  background: var(--color-success-light);
  color: var(--color-success);
}

.badge--new {
  background: var(--color-accent-light);
  color: var(--color-accent-dark);
}

.badge--tool {
  background: var(--color-primary-light);
  color: var(--color-primary);
}


/* ---------- HERRAMIENTA (TOOL) ---------- */
.tool {
  background: var(--color-bg);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-tool);
  margin: var(--space-xl) 0;
  overflow: hidden;
}

.tool__header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-primary);
  color: white;
}

.tool__icon {
  flex-shrink: 0;
  margin-top: 2px;
  line-height: 0;
}
.tool__icon svg { width: 30px; height: 30px; color: #fff; }

.tool__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: white;
  margin: 0;
  line-height: 1.3;
}

.tool__subtitle {
  font-size: 0.875rem;
  opacity: 0.85;
  margin-top: var(--space-xs);
  line-height: 1.5;
}

@media (min-width: 640px) {
  .tool__title { font-size: 1.25rem; }
}

.tool__body {
  padding: var(--space-lg);
}

@media (min-width: 640px) {
  .tool__body { padding: var(--space-xl); }
}

.tool__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.tool__results {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border-light);
}

.tool__results-title {
  font-size: 1.125rem;
  margin: 0 0 var(--space-lg);
  color: var(--color-primary);
}

.tool__disclaimer {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: var(--space-lg);
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  line-height: 1.6;
}


/* ---------- FORM FIELDS ---------- */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.field__label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

.field__input-wrap {
  display: flex;
  align-items: center;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  transition: border-color var(--transition-fast);
  overflow: hidden;
}

.field__input-wrap:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 94, 123, 0.12);
}

.field__prefix {
  padding: 0 var(--space-sm) 0 var(--space-md);
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.9375rem;
  user-select: none;
}

.field__input,
.field__select {
  width: 100%;
  padding: 0.75rem var(--space-md);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  border: none;
  background: transparent;
  outline: none;
}

.field__input-wrap .field__input {
  padding-left: 0;
}

.field__input:not(.field__input-wrap .field__input) {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.field__input:not(.field__input-wrap .field__input):focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 94, 123, 0.12);
  outline: none;
}

.field__select {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%237A7A94' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 2.5rem;
  transition: border-color var(--transition-fast);
}

.field__select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 94, 123, 0.12);
  outline: none;
}

.field__hint {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

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

@media (min-width: 640px) {
  .field__row {
    grid-template-columns: 1fr 1fr;
  }
}


/* ---------- RESULT CARDS ---------- */
.result-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border-light);
}

.result-card:last-of-type {
  border-bottom: none;
}

.result-card__label {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
}

.result-card__value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text);
}

.result-card--total {
  background: var(--color-success-light);
  border-radius: var(--radius-md);
  border: none;
  margin-bottom: var(--space-md);
  padding: var(--space-lg);
}

.result-card--total .result-card__label {
  font-weight: 600;
  color: var(--color-success);
}

.result-card--total .result-card__value {
  font-size: 1.5rem;
  color: var(--color-success);
}


/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.8rem var(--space-xl);
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

.btn--primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: white;
}

.btn--secondary {
  background: var(--color-bg-alt);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--secondary:hover {
  background: var(--color-border-light);
  border-color: var(--color-text-muted);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

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

.btn--full {
  width: 100%;
}

.btn--sm {
  font-size: 0.8125rem;
  padding: 0.5rem var(--space-md);
}


/* ---------- STEPS ---------- */
.steps {
  margin: var(--space-xl) 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.step:last-child {
  border-bottom: none;
}

.step__number {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: white;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.875rem;
  border-radius: var(--radius-full);
  margin-top: 2px;
}

.step__content {
  flex: 1;
  min-width: 0;
}

.step__title {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 var(--space-sm);
  line-height: 1.4;
}

.step__content p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin: 0;
}

.step__img-placeholder {
  margin-top: var(--space-md);
  background: var(--color-bg-alt);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step__img-placeholder::after {
  content: '📷 Captura de pantalla';
  color: var(--color-text-muted);
  font-size: 0.875rem;
}


/* ---------- FAQ ACCORDION ---------- */
.faq {
  margin: var(--space-2xl) 0;
}

.faq > h2 {
  margin-top: 0;
}

.faq__item {
  border-bottom: 1px solid var(--color-border-light);
}

.faq__item:first-of-type {
  border-top: 1px solid var(--color-border-light);
}

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-lg) 0;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  line-height: 1.5;
}

.faq__question::-webkit-details-marker {
  display: none;
}

.faq__question::after {
  content: '+';
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-text-muted);
  flex-shrink: 0;
  margin-left: var(--space-md);
  transition: transform var(--transition-base);
}

.faq__item[open] .faq__question::after {
  content: '−';
  color: var(--color-primary);
}

.faq__answer {
  padding: 0 0 var(--space-lg);
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.faq__answer p {
  margin-bottom: var(--space-sm);
}


/* ---------- DATA TABLE ---------- */
.table-wrap {
  overflow-x: auto;
  margin: var(--space-lg) 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.data-table {
  min-width: 480px;
  font-size: 0.875rem;
}

.data-table thead {
  background: var(--color-bg-alt);
}

.data-table th {
  text-align: left;
  font-weight: 600;
  padding: var(--space-md);
  color: var(--color-text-secondary);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--color-border);
}

.data-table td {
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: top;
  line-height: 1.5;
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.data-table tbody tr:hover {
  background: var(--color-bg-alt);
}


/* ---------- STATUS PILLS ---------- */
.status {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-sm);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.status--success {
  background: var(--color-success-light);
  color: var(--color-success);
}

.status--error {
  background: var(--color-error-light);
  color: var(--color-error);
}

.status--warning {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.status--info {
  background: var(--color-info-light);
  color: var(--color-info);
}


/* ---------- CALLOUT ---------- */
.callout {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  margin: var(--space-lg) 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  border-left: 4px solid;
}

.callout__icon {
  font-size: 1.25rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.callout__content strong {
  display: block;
  margin-bottom: var(--space-xs);
}

.callout--info {
  background: var(--color-info-light);
  border-color: var(--color-info);
}

.callout--warning {
  background: var(--color-warning-light);
  border-color: var(--color-warning);
}

.callout--success {
  background: var(--color-success-light);
  border-color: var(--color-success);
}

.callout--error {
  background: var(--color-error-light);
  border-color: var(--color-error);
}


/* ---------- CARDS ---------- */

/* Silo Card (homepage grid) */
.silo-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

@media (min-width: 640px) {
  .silo-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .silo-grid { grid-template-columns: repeat(3, 1fr); }
}

.silo-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-base);
}

.silo-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.silo-card__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md, 10px);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
}
.silo-card__icon svg { width: 26px; height: 26px; color: var(--color-primary); }

.silo-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 var(--space-xs);
}

.silo-card__desc {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.5;
}

.silo-card__arrow {
  margin-left: auto;
  color: var(--color-primary);
  font-size: 1.25rem;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.silo-card:hover .silo-card__arrow {
  transform: translateX(4px);
}

/* Tool Card (herramientas populares) */
.tool-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

@media (min-width: 640px) {
  .tool-grid { grid-template-columns: repeat(2, 1fr); }
}

.tool-card {
  display: block;
  padding: var(--space-lg);
  background: var(--color-accent-light);
  border: 1.5px solid transparent;
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-base);
}

.tool-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.tool-card__badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent-dark);
  margin-bottom: var(--space-sm);
}

.tool-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 var(--space-xs);
}

.tool-card__desc {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* Related Cards (footer artículos) */
.related {
  margin-top: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border-light);
}

.related__title {
  font-size: 1.125rem;
  margin: 0 0 var(--space-lg);
}

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

@media (min-width: 640px) {
  .related__grid { grid-template-columns: repeat(2, 1fr); }
}

.related__card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--transition-fast);
}

.related__card:hover {
  background: var(--color-primary-light);
}

.related__icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.related__name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
}


/* ---------- WIZARD ---------- */
.wizard__progress {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.wizard__step {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  transition: all var(--transition-base);
}

.wizard__step--active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
}

.wizard__step--done {
  background: var(--color-success-light);
  color: var(--color-success);
}

.wizard__step-num {
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-border);
  color: white;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.wizard__step--active .wizard__step-num {
  background: var(--color-primary);
}

.wizard__step--done .wizard__step-num {
  background: var(--color-success);
}

.wizard__step-label {
  display: none;
}

@media (min-width: 640px) {
  .wizard__step-label { display: inline; }
}

.wizard__panel {
  display: none;
}

.wizard__panel--active {
  display: block;
}

.wizard__panel h3 {
  margin-top: 0;
}

.wizard__options {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.wizard__option {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-alt);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

.wizard__option:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}


/* ---------- CHECKLIST ---------- */
.checklist {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.checklist__item {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.checklist__item:has(.checklist__check:checked) {
  border-color: var(--color-success);
  background: var(--color-success-light);
}

.checklist__label {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
}

.checklist__check {
  width: 1.25rem;
  height: 1.25rem;
  accent-color: var(--color-success);
  flex-shrink: 0;
}

.checklist__icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.checklist__content {
  flex: 1;
  min-width: 0;
}

.checklist__content strong {
  display: block;
  font-size: 0.9375rem;
}

.checklist__content span {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.checklist__link {
  font-size: 0.8125rem;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}

.checklist__progress {
  margin-top: var(--space-lg);
}

.checklist__bar {
  height: 8px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.checklist__fill {
  height: 100%;
  background: var(--color-success);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

.checklist__count {
  display: block;
  text-align: center;
  margin-top: var(--space-sm);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}


/* ---------- HERO (Homepage) ---------- */
.hero {
  padding: var(--space-3xl) 0;
  text-align: center;
  background: linear-gradient(180deg, var(--color-primary-light) 0%, var(--color-bg) 100%);
}

.hero__title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: var(--color-text);
  max-width: 600px;
  margin: 0 auto var(--space-md);
}

@media (min-width: 1024px) {
  .hero__title { font-size: 2.75rem; }
}

.hero__subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto var(--space-xl);
  line-height: 1.7;
}

.hero__search {
  display: flex;
  max-width: 520px;
  margin: 0 auto;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg);
  box-shadow: var(--shadow-md);
  transition: border-color var(--transition-fast);
}

.hero__search:focus-within {
  border-color: var(--color-primary);
}

.hero__input {
  flex: 1;
  padding: 0.875rem var(--space-lg);
  font-family: var(--font-body);
  font-size: 1rem;
  border: none;
  outline: none;
  color: var(--color-text);
  background: transparent;
}

.hero__input::placeholder {
  color: var(--color-text-muted);
}

.hero__search-btn {
  padding: 0.875rem var(--space-lg);
  background: var(--color-primary);
  border: none;
  cursor: pointer;
  font-size: 1.125rem;
  color: white;
  transition: background var(--transition-fast);
}

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


/* ---------- FOOTER ---------- */
.footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-3xl) 0 var(--space-xl);
  margin-top: var(--space-4xl);
}

.footer a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer a:hover {
  color: white;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
}

@media (min-width: 640px) {
  .footer__grid {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: var(--space-3xl);
  }
}

.footer__logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.125rem;
  color: white;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer__logo svg { width: 20px; height: 20px; color: currentColor; }
.related__icon { display: inline-flex; align-items: center; }
.related__icon svg { width: 20px; height: 20px; color: var(--color-primary); }
.checklist__icon { display: inline-flex; align-items: center; }
.checklist__icon svg { width: 20px; height: 20px; color: var(--color-primary); }
.tool-card__title svg.title-ico { width: 18px; height: 18px; color: var(--color-primary); vertical-align: -3px; margin-right: 2px; }
.hero__search-btn svg { width: 20px; height: 20px; color: #fff; }

.footer__tagline {
  margin-top: var(--space-sm);
  font-size: 0.875rem;
  line-height: 1.6;
  max-width: 280px;
}

.footer__links h4 {
  color: white;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
}

.footer__links a {
  display: block;
  font-size: 0.875rem;
  padding: var(--space-xs) 0;
  line-height: 1.5;
}

.footer__bottom {
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__bottom p {
  font-size: 0.75rem;
  line-height: 1.6;
  max-width: 500px;
}


/* ---------- ARTICLE CONTENT ---------- */
.article-content { max-width: 60rem; }
.article-content > p {
  color: var(--color-text-secondary);
}

.article-content > p:first-child {
  font-size: 1.0625rem;
  color: var(--color-text);
}

.article-content ul,
.article-content ol {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
}

.article-content li {
  margin-bottom: var(--space-sm);
  line-height: 1.7;
}

.article-content a {
  font-weight: 500;
}

.article-content img {
  border-radius: var(--radius-md);
  margin: var(--space-lg) 0;
  border: 1px solid var(--color-border-light);
}


/* ---------- TOC (Table of Contents) ---------- */
.toc {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
}

.toc__title {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-md);
}

.toc__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc__list li {
  margin: 0;
}

.toc__list a {
  display: block;
  padding: var(--space-sm) 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border-light);
}

.toc__list li:last-child a {
  border-bottom: none;
}

.toc__list a:hover {
  color: var(--color-primary);
}


/* ---------- UTILITIES ---------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.text-center { text-align: center; }

[hidden] { display: none !important; }


/* ---------- LOGO IMG ---------- */
.header__logo-img {
  display: block;
  height: 26px;
  width: auto;
}
@media (max-width: 480px) {
  .header__logo-img { height: 22px; }
}

/* ---------- BUSCADOR (autocompletado + resultados) ---------- */
.search-suggest {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  z-index: 60;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md, 8px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
  overflow: hidden;
  text-align: left;
}
.search-suggest__item {
  display: block;
  padding: 0.7rem var(--space-lg);
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--color-border);
}
.search-suggest__item:last-child { border-bottom: none; }
.search-suggest__item:hover,
.search-suggest__item.is-active {
  background: var(--color-bg-alt, #f4f7f9);
  color: var(--color-primary);
}
.search-suggest__title { font-weight: 600; }

#search-results { padding-top: var(--space-2xl, 3rem); }
.search-list { list-style: none; margin: 0; padding: 0; }
.search-list__item {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
}
.search-list__item a {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-primary);
  text-decoration: none;
}
.search-list__item a:hover { text-decoration: underline; }
.search-list__item p {
  margin: 0.35rem 0 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}


/* ---------- PRINT ---------- */
@media print {
  .header, .footer, .hero__search, .tool__form button, .breadcrumb { display: none; }
  body { font-size: 11pt; }
  .tool { border: 1px solid #ccc; box-shadow: none; }
}


/* ---------- SKIP LINK (a11y) ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 999;
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-sm) var(--space-md);
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

/* ---------- TABLE OF CONTENTS ---------- */
.toc {
  background: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
}
.toc__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-h3);
  margin: 0 0 var(--space-sm);
}
.toc ol { margin: 0; padding-left: 1.25rem; }
.toc li { margin-bottom: var(--space-xs); }
.toc a { color: var(--color-primary-medium); }

/* ---------- AD SLOTS (AdSense) ---------- */
.ad-slot {
  margin: var(--space-xl) auto;
  text-align: center;
  min-height: 100px;
  overflow: hidden;
  clear: both;
}
.ad-slot ins { margin: 0 auto; }