/* preu.cl - practica diaria PAES - SaaS-grade minimal
   Sin emojis, responsive desde 320px, dark mode automatico.
   Tokens centralizados en :root. */

:root {
  /* Type */
  --f-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --f-display: 'Inter', system-ui, sans-serif;
  --f-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  /* Spacing scale */
  --s-4: 0.25rem;
  --s-6: 0.375rem;
  --s-8: 0.5rem;
  --s-10: 0.625rem;
  --s-12: 0.75rem;
  --s-16: 1rem;
  --s-20: 1.25rem;
  --s-24: 1.5rem;
  --s-32: 2rem;
  --s-40: 2.5rem;
  --s-48: 3rem;
  --s-56: 3.5rem;
  --s-64: 4rem;
  --s-80: 5rem;
  --s-96: 6rem;

  /* Radius */
  --r-sm: 4px;
  --r-md: 6px;
  --r-lg: 10px;

  /* Container */
  --container: 1120px;
  --container-narrow: 720px;

  /* Light theme - violeta academico */
  --c-bg: #f8f7ff;
  --c-surface: #ffffff;
  --c-surface-2: #f0ecff;
  --c-bg-2: #ede9fe;
  --c-border: #d9d2f0;
  --c-text: #211a2f;
  --c-text-muted: #625a70;
  --c-text-soft: #756c83;
  --c-primary: #5b21b6;
  --c-primary-contrast: #ffffff;
  --c-accent: #6d28d9;
  --c-accent-hover: #5b21b6;
  --c-accent-contrast: #ffffff;
  --c-warn: #b45309;
  --c-warn-contrast: #ffffff;
  --c-error: #b91c1c;
  --c-success: #15803d;
  --c-success-contrast: #ffffff;

  /* Marca violeta propia de preu.cl */
  --c-brand: #6d28d9;
  --c-brand-hover: #5b21b6;
  --c-brand-text: #ffffff;

  /* Colores por materia (mas vibrantes para el rediseño) */
  --c-mat-lectora: #0ea5e9;
  --c-mat-m1: #10b981;
  --c-mat-m2: #c026d3;
  --c-mat-bio: #16a34a;
  --c-mat-fisica: #2563eb;
  --c-mat-quimica: #f97316;
  --c-mat-historia: #ca8a04;

  --sh-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
  --sh-md: 0 4px 12px rgba(15, 23, 42, 0.06), 0 2px 4px rgba(15, 23, 42, 0.04);
  --sh-lg: 0 12px 32px rgba(15, 23, 42, 0.08), 0 4px 8px rgba(15, 23, 42, 0.04);
  --t-base: 180ms ease;
}

/* Dark mode automatico, sin flash */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --c-bg: #120c1f;
    --c-surface: #1d142b;
    --c-surface-2: #2a1f3d;
    --c-bg-2: #241636;
    --c-border: #413452;
    --c-text: #faf7ff;
    --c-text-muted: #bdb3cc;
    --c-text-soft: #a89db8;
    --c-primary: #c4b5fd;
    --c-primary-contrast: #21113f;
    --c-accent: #c4b5fd;
    --c-accent-hover: #ddd6fe;
    --c-accent-contrast: #21113f;
    --c-warn: #fbbf24;
    --c-warn-contrast: #21113f;
    --c-error: #fca5a5;
    --c-success: #86efac;
    --c-success-contrast: #21113f;
    --c-brand: #7c3aed;
    --c-brand-hover: #6d28d9;
    --c-brand-text: #ffffff;
    --sh-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --sh-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --sh-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
  }
}

[data-theme="dark"] {
  --c-bg: #120c1f;
  --c-surface: #1d142b;
  --c-surface-2: #2a1f3d;
  --c-bg-2: #241636;
  --c-border: #413452;
  --c-text: #faf7ff;
  --c-text-muted: #bdb3cc;
  --c-text-soft: #a89db8;
  --c-primary: #c4b5fd;
  --c-primary-contrast: #21113f;
  --c-accent: #c4b5fd;
  --c-accent-hover: #ddd6fe;
  --c-accent-contrast: #21113f;
  --c-warn: #fbbf24;
  --c-warn-contrast: #21113f;
  --c-error: #fca5a5;
  --c-success: #86efac;
  --c-success-contrast: #21113f;
  --c-brand: #7c3aed;
  --c-brand-hover: #6d28d9;
  --c-brand-text: #ffffff;
  --sh-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --sh-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --sh-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
}

/* Light mode explicito (forzado por toggle o por sistema claro).
   v0.30.2: necesario para que el toggle a light funcione cuando el
   sistema operativo del usuario esta en modo oscuro. */
[data-theme="light"] {
  --c-bg: #f8f7ff;
  --c-surface: #ffffff;
  --c-surface-2: #f0ecff;
  --c-bg-2: #ede9fe;
  --c-border: #d9d2f0;
  --c-text: #211a2f;
  --c-text-muted: #625a70;
  --c-text-soft: #756c83;
  --c-primary: #5b21b6;
  --c-primary-contrast: #ffffff;
  --c-accent: #6d28d9;
  --c-accent-hover: #5b21b6;
  --c-accent-contrast: #ffffff;
  --c-warn: #b45309;
  --c-warn-contrast: #ffffff;
  --c-error: #b91c1c;
  --c-success: #15803d;
  --c-success-contrast: #ffffff;
  --c-brand: #6d28d9;
  --c-brand-hover: #5b21b6;
  --c-brand-text: #ffffff;
  --sh-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
  --sh-md: 0 4px 12px rgba(15, 23, 42, 0.06), 0 2px 4px rgba(15, 23, 42, 0.04);
  --sh-lg: 0 12px 32px rgba(15, 23, 42, 0.08), 0 4px 8px rgba(15, 23, 42, 0.04);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--f-sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Seleccion de texto: siempre legible, en cualquier fondo */
::selection {
  background: var(--c-text);
  color: var(--c-bg);
}
::-moz-selection {
  background: var(--c-text);
  color: var(--c-bg);
}
.site-header ::selection,
.site-header *::selection {
  background: var(--c-primary);
  color: var(--c-primary-contrast);
}
.site-header ::-moz-selection,
.site-header *::-moz-selection {
  background: var(--c-primary);
  color: var(--c-primary-contrast);
}
.site-footer ::selection,
.site-footer *::selection {
  background: var(--c-brand-text);
  color: var(--c-brand);
}
.site-footer ::-moz-selection,
.site-footer *::-moz-selection {
  background: var(--c-brand-text);
  color: var(--c-brand);
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--f-display);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--c-text);
  margin: 0;
}
p { margin: 0 0 var(--s-16); }
a { color: var(--c-accent); text-decoration: none; transition: color var(--t-base); }
a:hover { color: var(--c-accent-hover); text-decoration: underline; }
button, input, select, textarea { font: inherit; color: inherit; }

/* Container */
.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--s-20); }
.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 var(--s-20); }
@media (max-width: 639px) {
  .container, .container-narrow { padding: 0 var(--s-16); }
}

/* Mono (numeros) */
.mono { font-family: var(--f-mono); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }

/* Section spacing */
.section { padding: var(--s-56) 0; }
.section-tight { padding: var(--s-32) 0; }
@media (max-width: 639px) {
  .section { padding: var(--s-56) 0; }
  .section-tight { padding: var(--s-40) 0; }
}

/* Header violeta (identidad preu.cl) */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 72px;
  display: flex;
  align-items: center;
  background: var(--c-brand);
  border-bottom: 1px solid var(--c-brand-hover);
  box-shadow: 0 2px 0 0 rgba(0, 0, 0, 0.04);
  overflow: hidden;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: var(--s-24);
  min-width: 0;
}
@media (max-width: 639px) {
  .brand-sub { display: none; }
  .brand { font-size: 1.25rem; }
  .brand-mark { width: 32px; height: 32px; font-size: 1.25rem; }
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--s-12);
  font-family: var(--f-display);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: #0a0a0a;
  text-decoration: none;
}
.brand:visited { color: #0a0a0a; }
.brand:hover { color: #0a0a0a; opacity: 0.85; }
.brand:active { color: #0a0a0a; }
.brand:focus { color: #0a0a0a; outline: none; }
.brand-mark {
  width: 40px;
  height: 40px;
  background: var(--c-brand-text);
  color: var(--c-brand);
  border-radius: var(--r-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
  flex-shrink: 0;
}
.brand-sub {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.7;
  margin-top: 2px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--s-20);
}
.main-nav a {
  color: var(--c-brand-text);
  font-size: 0.9375rem;
  font-weight: 600;
  opacity: 0.85;
  transition: opacity var(--t-base);
}
.main-nav a:hover { opacity: 1; color: var(--c-brand-text); text-decoration: none; }
/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 var(--s-20);
  background: var(--c-primary);
  color: var(--c-primary-contrast);
  border: 1px solid var(--c-primary);
  border-radius: var(--r-md);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--t-base), background var(--t-base);
}
.btn:hover { background: var(--c-accent); border-color: var(--c-accent); color: var(--c-accent-contrast); text-decoration: none; transform: translateY(-1px); }
.btn:active { background: var(--c-accent-hover); border-color: var(--c-accent-hover); color: var(--c-accent-contrast); }
.btn-secondary {
  background: var(--c-surface);
  color: var(--c-text);
  border-color: var(--c-border);
}
.btn-secondary:hover { background: var(--c-surface-2); border-color: var(--c-text-muted); color: var(--c-text); }
.btn-secondary:active { background: var(--c-surface-2); border-color: var(--c-text); color: var(--c-text); }
.btn-sm { height: 32px; padding: 0 var(--s-12); font-size: 0.8125rem; }

/* Hero violeta con acentos por materia */
.hero {
  padding: var(--s-48) 0 var(--s-80);
  border-bottom: 1px solid var(--c-border);
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg,
      color-mix(in srgb, var(--c-brand) 25%, var(--c-bg)) 0%,
      var(--c-bg) 40%,
      color-mix(in srgb, var(--c-mat-m2) 8%, var(--c-bg)) 100%);
}
.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, color-mix(in srgb, var(--c-brand) 40%, transparent) 0%, transparent 60%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -200px;
  left: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, color-mix(in srgb, var(--c-mat-m2) 20%, transparent) 0%, transparent 60%);
  pointer-events: none;
}
.hero-inner { position: relative; max-width: 880px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-8);
  padding: 0 var(--s-16);
  height: 28px;
  background: var(--c-surface);
  color: var(--c-accent);
  border: 1px solid color-mix(in srgb, var(--c-accent) 30%, var(--c-border));
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--s-24);
  box-shadow: var(--sh-sm);
}
.hero h1 {
  font-size: clamp(2.75rem, 7vw, 5.5rem);
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 0.95;
  margin-bottom: var(--s-24);
  color: var(--c-text);
}
.hero h1 .hero-highlight {
  background: linear-gradient(135deg, var(--c-accent) 0%, var(--c-brand-hover) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}
.hero-sub {
  font-size: 1.25rem;
  color: var(--c-text-muted);
  max-width: 720px;
  margin-bottom: var(--s-32);
  line-height: 1.5;
}
.hero-actions {
  display: flex;
  gap: var(--s-12);
  flex-wrap: wrap;
  margin-bottom: var(--s-40);
}
.hero-actions .btn {
  height: 52px;
  padding: 0 var(--s-32);
  font-size: 1.0625rem;
  font-weight: 700;
  background: var(--c-brand);
  color: var(--c-brand-text);
  border-color: var(--c-brand);
  box-shadow: 0 2px 0 0 var(--c-brand-hover);
}
.hero-actions .btn:hover {
  background: var(--c-brand-hover);
  border-color: var(--c-brand-hover);
  transform: translateY(-1px);
}
.hero-actions .btn-secondary {
  height: 52px;
  padding: 0 var(--s-32);
  font-size: 1.0625rem;
  font-weight: 700;
  background: transparent;
  color: var(--c-text);
  border: 2px solid var(--c-border);
}

/* Stats heroicas (banda debajo del hero) */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: var(--s-20) 0;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  background: var(--c-surface);
}
.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-4);
  padding: 0 var(--s-16);
  border-right: 1px solid var(--c-border);
}
.hero-stat:last-child { border-right: none; }
.hero-stat-num {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--c-text);
  font-variant-numeric: tabular-nums;
}
.hero-stat-num .accent { color: var(--c-accent); }
.hero-stat-label {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--c-text-muted);
  text-align: center;
}
.hero-stat-meta {
  font-size: 0.7rem;
  line-height: 1.4;
  color: var(--c-text-muted);
  text-align: center;
  opacity: 0.75;
  margin-top: 2px;
  max-width: 18ch;
  margin-inline: auto;
}
a.hero-stat-num {
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.15s;
  display: inline-block;
}
a.hero-stat-num:hover {
  opacity: 0.7;
}
a.hero-stat-num::after {
  content: "";
  display: block;
  position: absolute;
  inset: 0;
}
.hero-stat-link {
  color: var(--c-accent);
  text-decoration: underline;
  text-underline-offset: 0.14em;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
  margin-left: 4px;
}
.hero-stat-link:hover {
  text-decoration: underline;
}
@media (max-width: 639px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .hero-stat { padding: var(--s-12); border-bottom: 1px solid var(--c-border); }
  .hero-stat:nth-last-child(-n+2) { border-bottom: none; }
  .hero-stat:nth-child(2n) { border-right: none; }
  .hero-stat:nth-child(odd) { border-right: 1px solid var(--c-border); }
}

/* Card */
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--s-32);
  box-shadow: var(--sh-sm);
}
.card-lg { padding: var(--s-40); }
@media (max-width: 639px) {
  .card, .card-lg { padding: var(--s-24); }
}

/* Calculator - SaaS grade v0.7.0 */
.nem-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-20) var(--s-24);
  margin-bottom: var(--s-24);
}
.nem-form .nem-actions,
.nem-field--wide { grid-column: 1 / -1; }
.nem-field { display: flex; flex-direction: column; gap: var(--s-8); }
.nem-field label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.nem-field input,
.nem-field select {
  height: 56px;
  padding: 0 var(--s-16);
  background: var(--c-surface);
  color: var(--c-text);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-md);
  font-family: var(--f-mono);
  font-size: 1.25rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  text-align: center;
  transition: border-color var(--t-base), background var(--t-base), box-shadow var(--t-base), transform var(--t-base);
  box-shadow: 0 1px 0 0 var(--c-border);
}
.nem-field input:hover,
.nem-field select:hover {
  border-color: color-mix(in srgb, var(--c-accent) 40%, var(--c-border));
}
.nem-field input:focus,
.nem-field select:focus {
  outline: none;
  border-color: var(--c-accent);
  background: var(--c-surface);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--c-accent) 15%, transparent);
}
.nem-field input::placeholder {
  color: var(--c-text-soft);
  font-weight: 500;
}

.nem-actions {
  display: flex;
  gap: var(--s-12);
  align-items: center;
  flex-wrap: wrap;
  margin-top: var(--s-8);
}

.nem-result-card {
  margin-top: var(--s-32);
  padding: var(--s-32) var(--s-32);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-md);
  animation: nem-rise 320ms cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}
.nem-result-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--c-accent);
}
@keyframes nem-rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.nem-result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--s-20);
  flex-wrap: wrap;
  gap: var(--s-12);
}
.nem-result-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-8);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-accent);
}
.nem-result-eyebrow::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--c-accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--c-accent) 20%, transparent);
}
.nem-result-scale {
  font-size: 0.75rem;
  color: var(--c-text-muted);
  font-weight: 600;
}
.nem-hero {
  display: flex;
  align-items: baseline;
  gap: var(--s-12);
  margin-bottom: var(--s-24);
  flex-wrap: wrap;
}
.nem-hero-num {
  font-size: clamp(3.5rem, 8vw, 5rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 0.9;
  color: var(--c-accent);
  font-family: var(--f-display);
  font-variant-numeric: tabular-nums;
}
.nem-hero-unit {
  font-size: 1.25rem;
  color: var(--c-text-muted);
  font-weight: 600;
}
.nem-hero-of {
  font-size: 0.875rem;
  color: var(--c-text-muted);
  margin-left: auto;
  font-weight: 500;
}
.nem-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-16);
  padding-top: var(--s-20);
  border-top: 1px solid var(--c-border);
}
.nem-cell { display: flex; flex-direction: column; gap: var(--s-4); }
.nem-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-text-muted);
}
.nem-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-text);
  font-family: var(--f-mono);
  font-variant-numeric: tabular-nums;
}
.nem-foot {
  font-size: 0.8125rem;
  color: var(--c-text-soft);
  margin: var(--s-20) 0 0;
  line-height: 1.5;
}
.nem-error {
  margin: var(--s-16) 0 0;
  padding: var(--s-12) var(--s-16);
  background: color-mix(in srgb, var(--c-error) 10%, transparent);
  color: var(--c-error);
  border-radius: var(--r-md);
  font-size: 0.875rem;
  border: 1px solid color-mix(in srgb, var(--c-error) 30%, transparent);
}
@media (max-width: 639px) {
  .nem-form { grid-template-columns: 1fr 1fr; gap: var(--s-12); }
  .nem-field input { height: 48px; font-size: 1.0625rem; }
  .nem-field select { height: 48px; font-size: 1rem; }
  .nem-detail { grid-template-columns: 1fr; gap: var(--s-12); }
  .nem-result-card { padding: var(--s-24); }
}

/* Tool grid (home) */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--s-20);
}
.tool-card {
  display: flex;
  flex-direction: column;
  gap: var(--s-12);
  padding: var(--s-24);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
}
.tool-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--card-accent, var(--c-accent));
  opacity: 0.6;
  transition: opacity var(--t-base), height var(--t-base);
}
.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--sh-lg);
  border-color: var(--card-accent, var(--c-accent));
  text-decoration: none;
}
.tool-card:hover::before { opacity: 1; height: 4px; }
.tool-card h3 { font-size: 1.125rem; color: var(--c-text); }
.tool-card--featured h3 { color: inherit; }
.tool-card--featured p { color: rgba(10, 10, 10, 0.78); }
.tool-card p { color: var(--c-text-muted); font-size: 0.9375rem; margin: 0; }
.tool-card .tool-tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  padding: 2px var(--s-8);
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-text-muted);
}
.tool-card[data-soon="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* Cards de materia con color (var --card-accent) */
.tool-card[data-materia="competencia-lectora"] { --card-accent: var(--c-mat-lectora); }
.tool-card[data-materia="matematica-m1"] { --card-accent: var(--c-mat-m1); }
.tool-card[data-materia="matematica-m2"] { --card-accent: var(--c-mat-m2); }
.tool-card[data-materia="biologia"] { --card-accent: var(--c-mat-bio); }
.tool-card[data-materia="fisica"] { --card-accent: var(--c-mat-fisica); }
.tool-card[data-materia="quimica"] { --card-accent: var(--c-mat-quimica); }
.tool-card[data-materia="historia"] { --card-accent: var(--c-mat-historia); }
.tool-card[data-materia="facsimil"] { --card-accent: var(--c-warn); }

/* Section heading */
.section-heading { margin-bottom: var(--s-24); max-width: 720px; }
.section-heading h1,
.section-heading h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: var(--s-12);
}
.section-heading p {
  color: var(--c-text-muted);
  font-size: 1.0625rem;
  margin: 0;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--c-border);
  padding: var(--s-48) 0 var(--s-32);
  margin-top: var(--s-80);
  color: var(--c-text-muted);
  font-size: 0.875rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, minmax(0, 1fr));
  gap: var(--s-40);
  margin-bottom: var(--s-32);
}
@media (max-width: 959px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-32); }
}
@media (max-width: 639px) {
  .footer-grid { grid-template-columns: 1fr; gap: var(--s-24); }
}
.footer-grid h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-text);
  margin-bottom: var(--s-12);
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: var(--s-8); }
.footer-grid a { color: var(--c-text-muted); }
.footer-grid a:hover { color: var(--c-text); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--s-20);
  border-top: 1px solid var(--c-border);
  font-size: 0.8125rem;
  flex-wrap: wrap;
  gap: var(--s-12);
}
.footer-bottom > p { opacity: 1 !important; }
.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-8) var(--s-20);
  align-items: center;
  padding-top: var(--s-20);
  margin-top: var(--s-20);
  border-top: 1px solid var(--c-border);
  font-size: 0.8125rem;
}
.site-footer > .footer-legal {
  width: calc(100% - (2 * var(--s-20)));
  max-width: calc(var(--container) - (2 * var(--s-20)));
  margin-inline: auto;
}
@media (max-width: 639px) {
  .site-footer > .footer-legal { width: calc(100% - (2 * var(--s-16))); }
}
.footer-legal a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 0.2em;
}
.footer-legal a:hover { color: var(--c-text); }


/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--s-16);
  z-index: 100;
  padding: var(--s-12) var(--s-16);
  background: var(--c-primary);
  color: var(--c-primary-contrast);
  border-radius: var(--r-md);
  font-size: 0.875rem;
  font-weight: 600;
}
.skip-link:focus-visible {
  top: var(--s-16);
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}

/* Theme toggle */
.theme-toggle {
  height: 32px;
  width: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--c-surface);
  color: var(--c-text-muted);
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  cursor: pointer;
  font-size: 0.875rem;
  transition: background var(--t-base), color var(--t-base);
}
.theme-toggle:hover { background: var(--c-surface-2); color: var(--c-text); }

/* Facsímil interactivo */
.fac-progress { margin-bottom: var(--s-20); }
.fac-progress-bar {
  height: 6px;
  background: var(--c-surface-2);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: var(--s-8);
}
.fac-progress-bar > span {
  display: block;
  height: 100%;
  background: var(--c-accent);
  border-radius: 999px;
  transition: width var(--t-base);
}
.fac-progress-text {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.fac-card { padding: 0; }
.fac-tipo {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--s-10);
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-text-muted);
  margin-bottom: var(--s-16);
}
.fac-texto {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-surface-2);
  border-left: 3px solid var(--c-accent);
  padding: var(--s-16) var(--s-20);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  margin-bottom: var(--s-20);
  font-style: italic;
}
.fac-pregunta {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--s-16);
  line-height: 1.4;
}
.fac-opciones {
  display: flex;
  flex-direction: column;
  gap: var(--s-10);
  margin-bottom: var(--s-24);
}
.fac-opcion {
  display: flex;
  align-items: flex-start;
  gap: var(--s-12);
  padding: var(--s-12) var(--s-16);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background var(--t-base), border-color var(--t-base);
  line-height: 1.5;
  font-size: 0.9375rem;
}
.fac-opcion:hover { background: var(--c-surface-2); border-color: var(--c-text-muted); }
.fac-opcion input { position: absolute; opacity: 0; pointer-events: none; }
.fac-opcion--selected {
  background: color-mix(in srgb, var(--c-accent) 8%, var(--c-surface));
  border-color: var(--c-accent);
}
.fac-opcion-letra {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--c-text-muted);
  flex-shrink: 0;
}
.fac-opcion--selected .fac-opcion-letra {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: var(--c-primary-contrast);
}
.fac-opcion-texto { flex: 1; padding-top: 2px; }
.fac-nav {
  display: flex;
  gap: var(--s-12);
  justify-content: flex-end;
  flex-wrap: wrap;
}
.fac-result { text-align: left; }
.fac-score { margin: var(--s-16) 0 var(--s-24); }
.fac-score-pct {
  display: inline-block;
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--c-accent);
  line-height: 1;
}
.fac-detalle { margin-top: var(--s-24); }
.fac-detalle summary {
  cursor: pointer;
  padding: var(--s-8) 0;
  font-weight: 600;
  color: var(--c-text);
  user-select: none;
}
.fac-detalle summary:hover { color: var(--c-accent); }
.fac-detalle-list {
  list-style: none;
  padding: 0;
  margin: var(--s-12) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--s-12);
}
.fac-detalle-item {
  padding: var(--s-12) var(--s-16);
  border-radius: var(--r-md);
  border-left: 3px solid var(--c-border);
  background: var(--c-surface-2);
}
.fac-detalle-item.is-ok { border-left-color: var(--c-success); }
.fac-detalle-item.is-wrong { border-left-color: var(--c-error); }
.fac-detalle-head {
  display: flex;
  align-items: center;
  gap: var(--s-12);
  margin-bottom: var(--s-8);
}
.fac-detalle-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  font-size: 0.75rem;
  font-weight: 700;
}
.fac-detalle-item.is-ok .fac-detalle-mark { color: var(--c-success); font-weight: 600; font-size: 0.8125rem; }
.fac-detalle-item.is-wrong .fac-detalle-mark { color: var(--c-error); font-weight: 600; font-size: 0.8125rem; }
.fac-detalle-q { font-size: 0.875rem; font-weight: 600; margin: 0 0 var(--s-4); }
.fac-detalle-line { font-size: 0.8125rem; color: var(--c-text-muted); margin: 0; }
@media (max-width: 639px) {
  .fac-pregunta { font-size: 1rem; }
  .fac-texto { font-size: 0.9375rem; padding: var(--s-12) var(--s-16); }
  .fac-score-pct { font-size: 2.75rem; }
}

/* Figuras SVG en ensayos/facsímiles */
.ensayo-figura,
.fac-figura {
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--s-20);
  margin-bottom: var(--s-20);
  color: var(--c-text);
  overflow-x: auto;
}
.ensayo-figura svg,
.fac-figura svg { max-width: 100%; height: auto; }
[data-theme="dark"] .ensayo-figura svg,
[data-theme="dark"] .fac-figura svg {
  background: #fff;
  color: #111;
  border-radius: var(--r-sm);
  box-shadow: 0 0 0 1px rgb(255 255 255 / 0.14);
}
.ensayo-figura--small { padding: var(--s-8); margin-bottom: var(--s-8); }
.ensayo-figura--small svg { max-height: 120px; }

/* KaTeX: ajustar el tamaño base en figuras y opciones */
.katex { font-size: 1.05em; }
.ensayo-opcion .katex,
.fac-opcion .katex { font-size: 1em; }

/* Ensayo: mesa de trabajo inspirada en un facsímil, sin copiar identidad DEMRE */
.hero.hero--assessment { padding-block: clamp(2rem, 5vw, 4rem); }
.hero.hero--assessment .hero-inner { max-width: 980px; }
.hero.hero--assessment h1 { max-width: 25ch; font-size: clamp(2rem, 5vw, 3.75rem); }
.hero.hero--assessment .hero-sub { max-width: 70ch; }
.hero.hero--assessment .hero-actions { margin-bottom: 0; }
.ensayo-main { padding-top: var(--s-12); }
.section--ensayo { padding: var(--s-16) 0 var(--s-48); scroll-margin-top: 84px; }
.container-ensayo { max-width: 1120px; }
.ensayo-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--s-20);
  align-items: center;
  margin-bottom: var(--s-20);
  padding: var(--s-16) var(--s-20);
  border: 1px solid var(--c-border);
  background: var(--c-surface);
  border-radius: var(--r-md);
}
.ensayo-timer { display: flex; flex-direction: column; gap: 2px; }
.ensayo-timer-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-text-soft);
  font-weight: 600;
}
.ensayo-timer-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--c-text);
  font-variant-numeric: tabular-nums;
}
.ensayo-timer--warning .ensayo-timer-value { color: var(--c-warn); }
.ensayo-timer--expired .ensayo-timer-value { color: var(--c-error); }
.ensayo-progress { min-width: 0; }
.ensayo-progress-bar {
  height: 6px;
  background: var(--c-border);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: var(--s-8);
}
.ensayo-progress-bar > span {
  display: block;
  height: 100%;
  background: var(--c-accent);
  border-radius: 999px;
  transition: width var(--t-base);
}
.ensayo-progress-text {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--c-text-muted);
  letter-spacing: 0.01em;
}
.ensayo-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 224px;
  gap: var(--s-24);
  align-items: start;
}
.ensayo-question-pane { min-width: 0; }
.ensayo-card {
  padding: clamp(1.25rem, 3vw, 2.5rem);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  box-shadow: 0 12px 32px color-mix(in srgb, var(--c-text) 6%, transparent);
}
.ensayo-question-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--s-16);
  margin-bottom: var(--s-24);
  padding-bottom: var(--s-16);
  border-bottom: 1px solid var(--c-border);
}
.ensayo-tipo {
  display: inline-flex;
  align-items: center;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-text-muted);
  margin: 0;
}
.ensayo-review {
  display: inline-flex;
  align-items: center;
  gap: var(--s-8);
  min-height: 40px;
  padding: var(--s-8) var(--s-12);
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--c-text-muted);
  font: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
}
.ensayo-review span {
  width: 10px;
  height: 14px;
  border: 2px solid currentColor;
  border-top: 0;
  transform: skewY(-12deg);
}
.ensayo-review:hover { color: var(--c-text); border-color: var(--c-text-muted); }
.ensayo-review.is-active {
  color: #7c4a03;
  background: #fff7d6;
  border-color: #d7a925;
}
.ensayo-texto {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.0625rem;
  line-height: 1.78;
  color: var(--c-text);
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-text-muted);
  padding: var(--s-20) var(--s-24);
  margin: 0 0 var(--s-24);
  max-width: none;
}
.ensayo-texto-label {
  display: block;
  margin-bottom: var(--s-12);
  font-family: Inter, system-ui, sans-serif;
  font-size: 0.6875rem;
  line-height: 1;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-text-muted);
}
.ensayo-texto p { margin: 0; }
.ensayo-question-stem {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: var(--s-16);
  align-items: start;
  margin: 0 0 var(--s-24);
}
.ensayo-question-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--c-text);
  color: var(--c-bg);
  font-size: 1rem;
  font-weight: 800;
}
.ensayo-pregunta {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  font-weight: 700;
  margin: 0;
  padding-top: 6px;
  line-height: 1.48;
  letter-spacing: -0.01em;
  color: var(--c-text);
}
.ensayo-opciones {
  display: grid;
  gap: var(--s-10);
  margin: 0;
}
.ensayo-opcion {
  display: flex;
  align-items: center;
  gap: var(--s-16);
  min-height: 58px;
  padding: var(--s-12) var(--s-16);
  background: transparent;
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: background var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
  line-height: 1.55;
  font-size: 1rem;
  color: var(--c-text);
  position: relative;
}
.ensayo-opcion:hover { background: var(--c-surface-2); border-color: var(--c-text-muted); }
.ensayo-opcion input { position: absolute; opacity: 0; pointer-events: none; }
.ensayo-opcion:has(input:focus-visible) {
  outline: 3px solid color-mix(in srgb, var(--c-accent) 35%, transparent);
  outline-offset: 2px;
}
.ensayo-opcion--selected {
  background: color-mix(in srgb, var(--c-accent) 8%, var(--c-surface));
  border-color: var(--c-accent);
  box-shadow: inset 4px 0 0 var(--c-accent);
}
.ensayo-opcion-letra {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  background: transparent;
  color: var(--c-text);
  border: 2px solid var(--c-text-muted);
  border-radius: 50%;
  font-size: 0.875rem;
  font-weight: 700;
  flex-shrink: 0;
}
.ensayo-opcion--selected .ensayo-opcion-letra {
  background: var(--c-accent);
  color: var(--c-accent-contrast);
  border-color: var(--c-accent);
}
.ensayo-opcion-texto { flex: 1; }
.ensayo-nav {
  display: flex;
  gap: var(--s-12);
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-top: var(--s-16);
  padding-top: var(--s-16);
}
.ensayo-numeracion { color: var(--c-text-muted); font-size: 0.8125rem; font-weight: 600; }
.ensayo-map {
  position: sticky;
  top: 88px;
  padding: var(--s-16);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
}
.ensayo-map-head { margin-bottom: var(--s-16); }
.ensayo-map-head strong { display: block; margin-top: var(--s-4); font-size: 0.875rem; }
.ensayo-map-kicker {
  display: block;
  color: var(--c-text-muted);
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.ensayo-map-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(4px, 2vw, var(--s-8));
  min-width: 0;
  padding: 2px;
}
.ensayo-map-item {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  max-width: 100%;
  min-width: 0;
  height: auto;
  aspect-ratio: 1;
  justify-self: center;
  padding: 0;
  border: 1px solid var(--c-border);
  border-radius: 50%;
  background: transparent;
  color: var(--c-text);
  font: inherit;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
}
.ensayo-map-item:hover { border-color: var(--c-text-muted); background: var(--c-surface-2); }
.ensayo-map-item.is-answered { border-color: var(--c-accent); color: var(--c-accent); }
.ensayo-map-item.is-current { background: var(--c-text); border-color: var(--c-text); color: var(--c-bg); }
.ensayo-map-item.is-review::after {
  content: "";
  position: absolute;
  top: -2px;
  right: -1px;
  width: 9px;
  height: 9px;
  border: 2px solid var(--c-surface);
  border-radius: 50%;
  background: #d7a925;
}
.ensayo-map-legend {
  display: grid;
  gap: var(--s-8);
  margin-top: var(--s-16);
  padding-top: var(--s-12);
  border-top: 1px solid var(--c-border);
  color: var(--c-text-muted);
  font-size: 0.6875rem;
}
.ensayo-map-legend span { display: flex; align-items: center; gap: var(--s-8); }
.ensayo-map-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 50%; }
.ensayo-map-legend i.is-answered { border: 2px solid var(--c-accent); }
.ensayo-map-legend i.is-review { background: #d7a925; }
.ensayo-result { text-align: left; }
.ensayo-score-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-12);
  margin: var(--s-20) 0;
}
.ensayo-score-item {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  padding: var(--s-12) var(--s-16);
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
}
.ensayo-score-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-text-muted);
  font-weight: 600;
}
.ensayo-score-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-text);
}
.ensayo-detalle { margin-top: var(--s-32); padding-top: var(--s-24); border-top: 1px solid var(--c-border); }
.ensayo-detalle summary {
  cursor: pointer;
  padding: var(--s-8) 0;
  font-weight: 600;
  color: var(--c-text);
  user-select: none;
}
.ensayo-detalle summary:hover { color: var(--c-accent); }
.ensayo-detalle-list {
  list-style: none;
  padding: 0;
  margin: var(--s-12) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--s-12);
}
.ensayo-detalle-item {
  padding: var(--s-12) var(--s-16);
  border-radius: var(--r-md);
  border-left: 3px solid var(--c-border);
  background: var(--c-surface-2);
}
.ensayo-detalle-item.is-ok { border-left-color: var(--c-success); }
.ensayo-detalle-item.is-wrong { border-left-color: var(--c-error); }
.ensayo-detalle-item.is-empty { border-left-color: var(--c-text-soft); }
.ensayo-detalle-head {
  display: flex;
  align-items: center;
  gap: var(--s-12);
  margin-bottom: var(--s-8);
}
.ensayo-detalle-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  font-size: 0.75rem;
  font-weight: 700;
}
.ensayo-detalle-item.is-ok .ensayo-detalle-mark { color: var(--c-success); font-weight: 600; font-size: 0.8125rem; }
.ensayo-detalle-item.is-wrong .ensayo-detalle-mark { color: var(--c-error); font-weight: 600; font-size: 0.8125rem; }
.ensayo-detalle-item.is-empty .ensayo-detalle-mark { color: var(--c-text-soft); font-weight: 600; font-size: 0.8125rem; }
.ensayo-detalle-q { font-size: 0.875rem; font-weight: 600; margin: 0 0 var(--s-4); }
.ensayo-detalle-line { font-size: 0.8125rem; color: var(--c-text-muted); margin: 0; }
@media (max-width: 800px) {
  .ensayo-workspace { grid-template-columns: minmax(0, 1fr); }
  .ensayo-map { position: static; order: -1; min-width: 0; }
  .ensayo-map-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: clamp(4px, 2vw, var(--s-8));
    padding: 2px;
    overflow: visible;
  }
  .ensayo-map-item {
    width: 36px;
    max-width: 100%;
    min-width: 0;
    height: auto;
    aspect-ratio: 1;
    justify-self: center;
  }
  .ensayo-map-legend { grid-template-columns: repeat(2, auto); justify-content: start; }
}
@media (max-width: 639px) {
  .hero.hero--assessment { padding-block: var(--s-32); }
  .hero.hero--assessment h1 { font-size: clamp(1.75rem, 10vw, 2.5rem); }
  .ensayo-header { grid-template-columns: 1fr auto; gap: var(--s-12); padding: var(--s-12); }
  .ensayo-progress { grid-column: 1 / -1; grid-row: 2; }
  .ensayo-timer-value { font-size: 1.5rem; }
  .ensayo-card { padding: var(--s-16); }
  .ensayo-question-toolbar { align-items: flex-start; flex-direction: column; gap: var(--s-10); }
  .ensayo-review { width: 100%; justify-content: center; }
  .ensayo-texto { padding: var(--s-16); font-size: 1rem; line-height: 1.68; }
  .ensayo-question-stem { grid-template-columns: 36px minmax(0, 1fr); gap: var(--s-12); }
  .ensayo-question-number { width: 36px; height: 36px; }
  .ensayo-pregunta { padding-top: 3px; font-size: 1rem; }
  .ensayo-opcion { align-items: flex-start; min-height: 56px; padding: var(--s-12); }
  .ensayo-opcion-letra { width: 32px; height: 32px; }
  .ensayo-opcion-texto { padding-top: 3px; }
  .ensayo-nav .btn { flex: 1 1 110px; }
  .ensayo-numeracion { order: -1; flex: 1 0 100%; text-align: center; }
  .ensayo-score-grid { grid-template-columns: 1fr; }
}

[data-theme="dark"] .ensayo-review.is-active {
  color: #ffe69a;
  background: color-mix(in srgb, #d7a925 18%, var(--c-surface));
  border-color: #d7a925;
}

/* Streak (racha) - rediseño editorial v0.6.0 */
.streak-racha-card {
  display: flex;
  flex-direction: column;
  padding: var(--s-32) var(--s-32);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-left: 4px solid #ea580c;
  border-radius: 0;
  position: relative;
}
.streak-racha-card--empty { border-left-color: var(--c-brand); }
.streak-racha-icono {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  margin-bottom: var(--s-12);
  color: #ea580c;
}
.streak-racha-card--empty .streak-racha-icono { color: #ca8a04; }
.streak-racha-icono svg { width: 24px; height: 24px; }
.streak-racha-empty { max-width: 540px; }
.streak-racha-empty-titulo {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0 0 var(--s-12);
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--c-text);
  font-family: var(--f-display);
}
.streak-racha-empty-texto {
  font-size: 0.9375rem;
  color: var(--c-text-muted);
  margin: 0 0 var(--s-20);
  line-height: 1.6;
  max-width: 480px;
}
.streak-racha-empty-texto strong { color: var(--c-text); font-weight: 700; }
.streak-racha-empty-cta {
  display: flex;
  align-items: center;
  gap: var(--s-12);
  flex-wrap: wrap;
}
.streak-racha-empty-cta .btn {
  background: var(--c-primary);
  color: var(--c-primary-contrast);
  border-color: var(--c-primary);
  height: 40px;
  padding: 0 var(--s-20);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 0;
}
.streak-racha-empty-cta .btn:hover { background: var(--c-accent-hover); transform: none; }
.streak-racha-empty-cta .btn-secondary {
  background: transparent;
  color: var(--c-text);
  border: 1px solid var(--c-text);
  height: 40px;
  padding: 0 var(--s-20);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 0;
}
.streak-racha-empty-hint {
  font-size: 0.75rem;
  color: var(--c-text-soft);
  margin-top: var(--s-16);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}
.streak-racha-num {
  font-size: 4.5rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  color: #ea580c;
  font-family: var(--f-display);
  margin-bottom: var(--s-4);
}
.streak-racha-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--c-text-muted);
}
.streak-racha-mensaje {
  font-size: 0.875rem;
  color: var(--c-text-muted);
  margin: var(--s-12) 0 var(--s-16);
  line-height: 1.5;
  max-width: 380px;
}
.streak-racha-best {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--c-text-soft);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  padding: 4px var(--s-10);
  border: 1px solid var(--c-border);
  border-radius: 0;
}
.streak-racha-stats {
  display: flex;
  gap: 0;
  margin-top: var(--s-12);
}
.streak-racha-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--s-12) var(--s-16);
  flex: 1;
  min-width: 0;
  border-left: 1px solid var(--c-border);
}
.streak-racha-stat:first-child { border-left: none; padding-left: 0; }
.streak-racha-stat-num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--c-text);
  font-family: var(--f-display);
  letter-spacing: -0.02em;
}
.streak-racha-stat-label {
  font-size: 0.6875rem;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}
.streak-racha-stat--empty {
  padding: var(--s-16) 0 0;
  border-left: none;
}
.streak-racha-stat-cta {
  font-size: 0.9375rem;
  color: var(--c-text);
  font-weight: 500;
  line-height: 1.5;
}

.streak-cal-wrap { display: flex; flex-direction: column; gap: var(--s-12); }
.streak-cal-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.streak-cal-titulo {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-text);
}
.streak-cal-count {
  font-size: 0.75rem;
  color: var(--c-text-muted);
  font-weight: 600;
}
.streak-cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  max-width: 320px;
}
.streak-cal-day {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: 4px;
  transition: transform var(--t-base), background var(--t-base);
}
.streak-cal-day.is-practiced {
  background: var(--c-accent);
  border-color: var(--c-accent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--c-accent) 30%, transparent);
}
.streak-cal-day:hover { transform: scale(1.15); }
.streak-cal-legend {
  display: flex;
  gap: var(--s-16);
  font-size: 0.75rem;
  color: var(--c-text-muted);
}
.streak-cal-legend-item { display: inline-flex; align-items: center; gap: var(--s-6); }
.streak-cal-legend-item .streak-cal-day { width: 12px; height: 12px; aspect-ratio: auto; }

.streak-sugerencia {
  display: flex;
  flex-direction: column;
  gap: var(--s-16);
  padding: var(--s-32);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-sm);
  position: relative;
  overflow: hidden;
  animation: nem-rise 320ms cubic-bezier(0.16, 1, 0.3, 1);
}
.streak-sugerencia::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--c-accent);
}
.streak-sugerencia-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-12);
}
.streak-sugerencia-eyebrow {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-accent);
}
.streak-sugerencia-titulo {
  font-size: 1.375rem;
  font-weight: 700;
  margin: 0;
  color: var(--c-text);
  line-height: 1.25;
  letter-spacing: -0.015em;
}
.streak-sugerencia-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-8);
  margin: 0;
  font-size: 0.875rem;
  color: var(--c-text-muted);
}
.streak-sugerencia .btn {
  align-self: flex-start;
  background: var(--c-brand);
  color: var(--c-brand-text);
  border-color: var(--c-brand);
  height: 48px;
  padding: 0 var(--s-24);
  font-size: 1rem;
  font-weight: 700;
  box-shadow: 0 2px 0 0 var(--c-brand-hover);
}
.streak-sugerencia .btn:hover {
  background: var(--c-brand-hover);
  border-color: var(--c-brand-hover);
  color: var(--c-brand-text);
  transform: translateY(-1px);
  box-shadow: 0 3px 0 0 color-mix(in srgb, var(--c-brand-hover) 80%, #000);
}
.streak-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--s-10);
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--c-text-muted);
}
.streak-tag--done {
  background: color-mix(in srgb, var(--c-success) 12%, var(--c-surface));
  color: var(--c-success);
  border-color: color-mix(in srgb, var(--c-success) 30%, var(--c-border));
}
.streak-empty { color: var(--c-text-muted); }

@media (max-width: 639px) {
  .streak-racha-num { font-size: 4rem; }
  .streak-racha-stats { flex-direction: column; gap: var(--s-8); }
  .streak-cal-grid { max-width: 100%; }
}

/* Tool card con icono SVG */
.tool-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: color-mix(in srgb, var(--c-accent) 10%, var(--c-surface-2));
  border: 1px solid color-mix(in srgb, var(--c-accent) 25%, var(--c-border));
  border-radius: var(--r-md);
  color: var(--c-accent);
  margin-bottom: var(--s-4);
}
.tool-card-icon svg { width: 22px; height: 22px; }
.tool-card-head {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  margin-bottom: var(--s-12);
}
.tool-card .tool-tag { align-self: flex-start; }

/* ============================================
   Catalogo de Ensayos (v0.15.0) — filtros + cards
   ============================================ */
.hero--compact { padding: var(--s-64) 0 var(--s-48); }
.hero--compact h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }
.section--tight { padding: var(--s-32) 0; }
@media (max-width: 639px) {
  .hero--compact { padding: var(--s-48) 0 var(--s-32); }
  .section--tight { padding: var(--s-24) 0; }
}

.ensayos-filters {
  display: flex;
  flex-direction: column;
  gap: var(--s-16);
  padding: var(--s-20);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
}
.ensayos-filter-group {
  display: flex;
  align-items: center;
  gap: var(--s-12);
  flex-wrap: wrap;
}
.ensayos-filter-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-text-soft);
  min-width: 80px;
}
.ensayos-filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-8);
}
.ensayos-chip {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 var(--s-14);
  background: var(--c-surface-2);
  color: var(--c-text);
  border: 1px solid var(--c-border);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease, transform 120ms ease;
  white-space: nowrap;
}
.ensayos-chip:hover {
  background: color-mix(in srgb, var(--c-accent) 8%, var(--c-surface-2));
  border-color: color-mix(in srgb, var(--c-accent) 30%, var(--c-border));
}
.ensayos-chip.is-active {
  background: var(--c-brand);
  color: #111;
  border-color: var(--c-brand-hover);
}
.ensayos-chip.is-active:hover {
  background: var(--c-brand-hover);
  border-color: var(--c-brand-hover);
}
[data-theme="dark"] .ensayos-chip.is-active {
  background: var(--c-brand);
  color: #111;
}

.ensayos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--s-20);
}
.ensayos-card .tool-card-head { flex-direction: row; align-items: center; gap: var(--s-12); }
.ensayos-card .tool-tag { align-self: center; }
.ensayos-card h3 { display: flex; align-items: center; gap: var(--s-8); flex-wrap: wrap; }
.ensayos-card-meta {
  display: flex;
  gap: var(--s-8);
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: var(--s-8);
}
.ensayos-card-meta .streak-tag { font-size: 0.75rem; }
.ensayos-card-meta .streak-tag[data-tag="dificultad"][data-value="facil"] {
  background: color-mix(in srgb, var(--c-success) 12%, var(--c-surface));
  color: var(--c-success);
  border-color: color-mix(in srgb, var(--c-success) 30%, var(--c-border));
}
.ensayos-card-meta .streak-tag[data-tag="dificultad"][data-value="medio"] {
  background: color-mix(in srgb, var(--c-warn) 12%, var(--c-surface));
  color: var(--c-warn);
  border-color: color-mix(in srgb, var(--c-warn) 30%, var(--c-border));
}
.ensayos-card-meta .streak-tag[data-tag="dificultad"][data-value="dificil"] {
  background: color-mix(in srgb, var(--c-error) 12%, var(--c-surface));
  color: var(--c-error);
  border-color: color-mix(in srgb, var(--c-error) 30%, var(--c-border));
}
.ensayos-card--done { opacity: 0.7; }
.ensayos-card--done:hover { opacity: 1; }
.ensayos-done-tag {
  display: inline-flex;
  align-items: center;
  height: 20px;
  padding: 0 var(--s-8);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--c-success);
  color: var(--c-success-contrast);
  border-radius: 999px;
}
.ensayos-loading {
  color: var(--c-text-soft);
  font-size: 0.9375rem;
  padding: var(--s-32);
  text-align: center;
}
.ensayos-empty {
  color: var(--c-text-soft);
  font-size: 0.9375rem;
  padding: var(--s-32);
  text-align: center;
  border: 1px dashed var(--c-border);
  border-radius: var(--r-lg);
}

@media (max-width: 639px) {
  .ensayos-filters { padding: var(--s-16); }
  .ensayos-filter-group { flex-direction: column; align-items: flex-start; gap: var(--s-8); }
  .ensayos-filter-label { min-width: 0; }
  .ensayos-chip { height: 30px; padding: 0 var(--s-12); font-size: 0.75rem; }
  .ensayos-grid { grid-template-columns: 1fr; }
}

/* ============================================
   Calculadora de Puntaje Ponderado v0.9.0 — Wizard
   ============================================ */

/* Stepper visual */
.wiz-stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  margin: var(--s-32) 0 var(--s-40);
  padding: 0;
  gap: 0;
  position: relative;
}
.wiz-stepper::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 18px;
  right: 18px;
  height: 2px;
  background: var(--c-border);
  z-index: 0;
}
.wiz-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-8);
  position: relative;
  z-index: 1;
  flex: 1;
  min-width: 0;
  transition: all 200ms ease;
}
.wiz-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--c-surface);
  color: var(--c-text-muted);
  border: 2px solid var(--c-border);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 800;
  font-family: var(--f-display);
  font-variant-numeric: tabular-nums;
  transition: all 200ms cubic-bezier(0.16, 1, 0.3, 1);
}
.wiz-step-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-text-muted);
  text-align: center;
  white-space: nowrap;
  transition: color 200ms ease;
}
.wiz-step.is-done .wiz-step-num {
  background: var(--c-success);
  color: var(--c-primary-contrast);
  border-color: var(--c-success);
  font-size: 0; /* esconder el numero */
}
.wiz-step.is-done .wiz-step-num::after {
  content: "";
  display: inline-block;
  width: 14px;
  height: 14px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path fill='none' stroke='white' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round' d='M3 8.5l3.5 3.5L13 4.5'/></svg>");
  background-size: contain;
  background-repeat: no-repeat;
}
@media (prefers-color-scheme: dark) {
  .wiz-step.is-done .wiz-step-num::after {
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path fill='none' stroke='%230a0a0a' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round' d='M3 8.5l3.5 3.5L13 4.5'/></svg>");
  }
}
.wiz-step.is-done .wiz-step-label { color: var(--c-text); }
.wiz-step.is-active .wiz-step-num {
  background: var(--c-brand);
  color: var(--c-brand-text);
  border-color: var(--c-brand);
  width: 44px;
  height: 44px;
  font-size: 1.0625rem;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--c-brand) 20%, transparent),
              0 4px 12px color-mix(in srgb, var(--c-brand) 30%, transparent);
  transform: scale(1);
}
.wiz-step.is-active .wiz-step-label { color: var(--c-text); font-weight: 800; }
@media (max-width: 479px) {
  .wiz-step-label { font-size: 0.625rem; }
  .wiz-step-num { width: 32px; height: 32px; font-size: 0.75rem; }
  .wiz-step.is-active .wiz-step-num { width: 38px; height: 38px; font-size: 0.9375rem; }
  .wiz-stepper::before { top: 16px; }
}

/* Stage + panels */
.wiz-stage {
  position: relative;
  min-height: 400px;
}
.wiz-panel {
  padding: var(--s-40) var(--s-40);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-sm);
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateX(0);
  transition: opacity 200ms ease, transform 240ms cubic-bezier(0.16, 1, 0.3, 1);
}
.wiz-panel.is-active {
  opacity: 1;
  transform: translateX(0);
}
.wiz-panel.is-leaving-left {
  transform: translateX(-24px);
  opacity: 0;
}
.wiz-panel.is-leaving-right {
  transform: translateX(24px);
  opacity: 0;
}
.wiz-panel.is-entering-right {
  animation: wiz-slide-in-right 280ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.wiz-panel.is-entering-left {
  animation: wiz-slide-in-left 280ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes wiz-slide-in-right {
  from { opacity: 0; transform: translateX(24px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes wiz-slide-in-left {
  from { opacity: 0; transform: translateX(-24px); }
  to { opacity: 1; transform: translateX(0); }
}
.wiz-panel[hidden] {
  display: none;
}
.wiz-panel-head {
  margin-bottom: var(--s-32);
  padding-bottom: var(--s-20);
  border-bottom: 1px solid var(--c-border);
}
.wiz-panel-eyebrow {
  display: inline-block;
  padding: 4px var(--s-10);
  background: color-mix(in srgb, var(--c-accent) 12%, var(--c-surface));
  color: var(--c-accent);
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--s-12);
}
.wiz-panel-titulo {
  font-size: clamp(1.5rem, 3vw, 1.875rem);
  font-weight: 800;
  margin: 0 0 var(--s-8);
  letter-spacing: -0.025em;
  color: var(--c-text);
  font-family: var(--f-display);
}
.wiz-panel-help {
  font-size: 0.9375rem;
  color: var(--c-text-muted);
  margin: 0;
  line-height: 1.5;
}
@media (max-width: 639px) {
  .wiz-panel { padding: var(--s-24); }
}

/* Error inline del wizard */
.wiz-error {
  margin: 0 0 var(--s-20);
  padding: var(--s-12) var(--s-16);
  background: color-mix(in srgb, var(--c-error) 10%, var(--c-surface));
  color: var(--c-error);
  border: 1px solid color-mix(in srgb, var(--c-error) 30%, transparent);
  border-radius: var(--r-md);
  font-size: 0.875rem;
  font-weight: 500;
  animation: wiz-error-in 240ms cubic-bezier(0.16, 1, 0.3, 1);
}
.wiz-error.is-leaving { animation: wiz-error-out 240ms ease forwards; }
@keyframes wiz-error-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes wiz-error-out {
  to { opacity: 0; transform: translateY(-4px); }
}

/* Botones de navegacion (atras/siguiente) */
.wiz-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-12);
  margin-top: var(--s-32);
  padding-top: var(--s-24);
  border-top: 1px solid var(--c-border);
  flex-wrap: wrap;
}
.wiz-actions-hint {
  font-size: 0.875rem;
  color: var(--c-text-muted);
  flex: 1;
  min-width: 0;
}
.wiz-actions-hint strong { color: var(--c-text); }
.wiz-actions .btn {
  background: var(--c-brand);
  color: var(--c-brand-text);
  border-color: var(--c-brand);
  height: 48px;
  padding: 0 var(--s-24);
  font-size: 1rem;
  font-weight: 700;
  box-shadow: 0 2px 0 0 var(--c-brand-hover);
  display: inline-flex;
  align-items: center;
}
.wiz-actions .btn:hover:not(:disabled) {
  background: var(--c-brand-hover);
  border-color: var(--c-brand-hover);
  color: var(--c-brand-text);
  transform: translateY(-1px);
  box-shadow: 0 3px 0 0 color-mix(in srgb, var(--c-brand-hover) 80%, #000);
}
.wiz-actions .btn:disabled {
  background: var(--c-surface-2);
  color: var(--c-text-soft);
  border-color: var(--c-border);
  cursor: not-allowed;
  box-shadow: none;
  opacity: 0.6;
}
.wiz-actions .btn.btn-secondary {
  background: transparent;
  color: var(--c-text);
  border: 1.5px solid var(--c-border);
  box-shadow: none;
}
.wiz-actions .btn.btn-secondary:hover {
  background: var(--c-surface-2);
  border-color: var(--c-text-muted);
  color: var(--c-text);
  transform: none;
  box-shadow: none;
}
.wiz-actions--final {
  justify-content: center;
  border-top: none;
  padding-top: 0;
  margin-top: var(--s-24);
}

/* Disclaimer collapsable */
.wiz-disclaimer {
  margin-top: var(--s-40);
  padding: var(--s-20) var(--s-24);
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  font-size: 0.875rem;
}
.wiz-disclaimer summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--c-text);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}
.wiz-disclaimer summary::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--c-text-muted);
  transition: transform 200ms ease;
}
.wiz-disclaimer[open] summary::after { transform: rotate(45deg); }
.wiz-disclaimer summary::-webkit-details-marker { display: none; }
.wiz-disclaimer ul {
  margin: var(--s-16) 0 0;
  padding-left: var(--s-20);
  color: var(--c-text-muted);
  line-height: 1.6;
}
.wiz-disclaimer li { margin-bottom: var(--s-8); }
.wiz-disclaimer a { color: var(--c-accent); }

/* Suma display (step 3) */
.suma-display {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-16);
  margin-top: var(--s-20);
  padding: var(--s-16) var(--s-20);
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  flex-wrap: wrap;
}
.suma-display-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.suma-display-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-text-muted);
}
.suma-display-help {
  font-size: 0.8125rem;
  color: var(--c-text-muted);
  line-height: 1.4;
}

/* Edit actions (step 4 resultado) */
.ponderado-edit-actions {
  display: flex;
  gap: var(--s-8);
  margin-top: var(--s-24);
  padding-top: var(--s-20);
  border-top: 1px dashed var(--c-border);
  flex-wrap: wrap;
}

/* Selector de areas (reuso del v0.8.0) */
.area-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-12);
  margin-bottom: var(--s-12);
}
@media (max-width: 639px) {
  .area-grid { grid-template-columns: 1fr; }
}
.area-chip {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--s-6);
  padding: var(--s-16) var(--s-20);
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-left: 4px solid var(--area-color, var(--c-text-muted));
  border-radius: var(--r-md);
  text-align: left;
  cursor: pointer;
  transition: border-color var(--t-base), background var(--t-base), transform var(--t-base);
  font-family: var(--f-sans);
  color: var(--c-text);
  width: 100%;
  min-width: 0;
}
.area-chip-titulo {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.2;
  word-break: break-word;
  overflow-wrap: anywhere;
}
.area-chip-desc {
  font-size: 0.75rem;
  color: var(--c-text-muted);
  line-height: 1.4;
  word-break: break-word;
  overflow-wrap: anywhere;
}
.area-chip-weights {
  font-size: 0.6875rem;
  color: var(--c-text-muted);
  font-weight: 600;
  font-family: var(--f-mono);
  letter-spacing: -0.01em;
  margin-top: var(--s-4);
  word-break: break-word;
  overflow-wrap: anywhere;
}
.area-chip:hover {
  background: var(--c-surface-2);
  border-color: var(--area-color, var(--c-text-muted));
  transform: translateY(-1px);
}
.area-chip.is-active {
  background: color-mix(in srgb, var(--area-color) 8%, var(--c-surface));
  border-color: var(--area-color);
  border-left-color: var(--area-color);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--area-color) 20%, transparent);
}

/* Inputs de puntaje */
.puntaje-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-20) var(--s-24);
}
@media (max-width: 639px) {
  .puntaje-grid { grid-template-columns: 1fr; }
}
.puntaje-field {
  display: flex;
  flex-direction: column;
  gap: var(--s-6);
}
.puntaje-field label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.puntaje-field input,
.puntaje-field select {
  height: 52px;
  padding: 0 var(--s-12);
  background: var(--c-surface);
  color: var(--c-text);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-md);
  font-family: var(--f-mono);
  font-size: 1.125rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  text-align: center;
  transition: border-color var(--t-base), box-shadow var(--t-base);
  box-shadow: 0 1px 0 0 var(--c-border);
}
.puntaje-field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path fill='%2357534e' d='M4 6l4 4 4-4z'/></svg>");
  background-repeat: no-repeat;
  background-position: right var(--s-12) center;
  background-size: 14px;
  padding-right: var(--s-32);
  text-align: left;
  cursor: pointer;
}
.puntaje-field input:hover,
.puntaje-field select:hover {
  border-color: color-mix(in srgb, var(--c-accent) 40%, var(--c-border));
}
.puntaje-field input:focus,
.puntaje-field select:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--c-accent) 15%, transparent);
}
.puntaje-field input::placeholder {
  color: var(--c-text-soft);
  font-weight: 500;
}
.puntaje-help {
  font-size: 0.75rem;
  color: var(--c-text-soft);
  line-height: 1.4;
}
.electiva-tipo {
  height: 36px !important;
  font-size: 0.8125rem !important;
  font-weight: 600 !important;
  margin-bottom: var(--s-6);
}

/* Inputs de ponderacion */
.ponderacion-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--s-12);
}
@media (max-width: 959px) {
  .ponderacion-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 479px) {
  .ponderacion-grid { grid-template-columns: repeat(2, 1fr); }
}
.ponderacion-field {
  display: flex;
  flex-direction: column;
  gap: var(--s-6);
}
.ponderacion-field label {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-align: center;
}
.ponderacion-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.ponderacion-field input {
  width: 100%;
  height: 48px;
  padding: 0 var(--s-24) 0 var(--s-8);
  background: var(--c-surface);
  color: var(--c-text);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-md);
  font-family: var(--f-mono);
  font-size: 1rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-align: center;
  transition: border-color var(--t-base), box-shadow var(--t-base);
  -moz-appearance: textfield;
}
.ponderacion-field input::-webkit-outer-spin-button,
.ponderacion-field input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.ponderacion-field input:hover {
  border-color: color-mix(in srgb, var(--c-accent) 40%, var(--c-border));
}
.ponderacion-field input:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--c-accent) 15%, transparent);
}
.ponderacion-unit {
  position: absolute;
  right: var(--s-8);
  font-size: 0.75rem;
  color: var(--c-text-muted);
  font-weight: 600;
  pointer-events: none;
}

/* Indicador de suma */
.suma-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--s-6);
  padding: 6px var(--s-12);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--c-text-muted);
  font-family: var(--f-mono);
  transition: all var(--t-base);
  white-space: nowrap;
}
.suma-indicator strong {
  color: var(--c-text);
  font-weight: 800;
}
.suma-indicator.is-ok {
  background: color-mix(in srgb, var(--c-success) 12%, var(--c-surface));
  border-color: color-mix(in srgb, var(--c-success) 40%, var(--c-border));
  color: var(--c-success);
}
.suma-indicator.is-ok strong { color: var(--c-success); }
.suma-indicator.is-warn {
  background: color-mix(in srgb, var(--c-warn) 12%, var(--c-surface));
  border-color: color-mix(in srgb, var(--c-warn) 40%, var(--c-border));
  color: var(--c-warn);
}
.suma-indicator.is-warn strong { color: var(--c-warn); }

/* Resultado */
.ponderado-result-card {
  padding: var(--s-40);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-md);
  position: relative;
  overflow: hidden;
  animation: nem-rise 320ms cubic-bezier(0.16, 1, 0.3, 1);
}
.ponderado-result-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--c-accent);
}
.ponderado-result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--s-24);
  flex-wrap: wrap;
  gap: var(--s-12);
}
.ponderado-result-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-8);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-accent);
}
.ponderado-result-eyebrow::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--c-accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--c-accent) 20%, transparent);
}
.ponderado-result-scale {
  font-size: 0.75rem;
  color: var(--c-text-muted);
  font-weight: 600;
}
.ponderado-hero {
  display: flex;
  align-items: baseline;
  gap: var(--s-12);
  margin-bottom: var(--s-32);
  flex-wrap: wrap;
}
.ponderado-hero-num {
  font-size: clamp(3.5rem, 9vw, 5.5rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 0.9;
  color: var(--c-accent);
  font-family: var(--f-display);
  font-variant-numeric: tabular-nums;
}
.ponderado-hero-unit {
  font-size: 1.25rem;
  color: var(--c-text-muted);
  font-weight: 600;
}
.ponderado-hero-area {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: var(--s-8);
  padding: 6px var(--s-12);
  background: color-mix(in srgb, var(--area-color) 12%, var(--c-surface));
  border: 1px solid color-mix(in srgb, var(--area-color) 30%, var(--c-border));
  border-left: 3px solid var(--area-color);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--c-text);
}
.ponderado-aportes {
  padding-top: var(--s-24);
  border-top: 1px solid var(--c-border);
  margin-bottom: var(--s-20);
}
.ponderado-aportes-titulo {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-text-muted);
  margin: 0 0 var(--s-16);
}
.ponderado-aportes-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--s-10);
}
.aporte-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-12);
  padding: var(--s-10) 0;
  border-bottom: 1px dashed var(--c-border);
  flex-wrap: wrap;
}
.aporte-item:last-child { border-bottom: none; }
.aporte-nombre {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-text);
}
.aporte-formula {
  display: inline-flex;
  align-items: center;
  gap: var(--s-8);
  font-size: 0.875rem;
  color: var(--c-text-muted);
}
.aporte-puntaje, .aporte-pond { color: var(--c-text); font-weight: 600; }
.aporte-x, .aporte-eq { color: var(--c-text-soft); }
.aporte-resultado {
  color: var(--c-accent);
  font-weight: 800;
  margin-left: var(--s-8);
  font-size: 0.9375rem;
}
.ponderado-foot {
  font-size: 0.8125rem;
  color: var(--c-text-soft);
  margin: var(--s-20) 0 0;
  line-height: 1.5;
  padding-top: var(--s-16);
  border-top: 1px solid var(--c-border);
}
.ponderado-error {
  padding: var(--s-16) var(--s-20);
  background: color-mix(in srgb, var(--c-error) 10%, var(--c-surface));
  color: var(--c-error);
  border: 1px solid color-mix(in srgb, var(--c-error) 30%, transparent);
  border-radius: var(--r-md);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--s-32);
}
@media (max-width: 639px) {
  .ponderado-result-card { padding: var(--s-24); }
  .ponderado-hero { flex-direction: column; align-items: flex-start; }
  .ponderado-hero-area { margin-left: 0; }
}

/* Boton de imprimir/descargar PDF */
.ponderado-print-action {
  display: flex;
  justify-content: center;
  margin-top: var(--s-24);
  padding-top: var(--s-20);
  border-top: 1px solid var(--c-border);
}
.ponderado-print-action .btn {
  background: var(--c-brand);
  color: var(--c-brand-text);
  border-color: var(--c-brand);
  height: 52px;
  padding: 0 var(--s-32);
  font-size: 1.0625rem;
  font-weight: 700;
  box-shadow: 0 2px 0 0 var(--c-brand-hover);
  display: inline-flex;
  align-items: center;
  gap: var(--s-8);
}
.ponderado-print-action .btn:hover {
  background: var(--c-brand-hover);
  border-color: var(--c-brand-hover);
  color: var(--c-brand-text);
  transform: translateY(-1px);
  box-shadow: 0 3px 0 0 color-mix(in srgb, var(--c-brand-hover) 80%, #000);
}
.ponderado-print-action .btn svg { width: 18px; height: 18px; }

/* ============================================
   Print styles — guardar como PDF / imprimir
   ============================================ */
@media print {
  /* Page setup */
  @page {
    margin: 1.5cm;
    size: A4;
  }
  body {
    background: #fff !important;
    color: #000 !important;
    font-size: 11pt;
    line-height: 1.5;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  /* Ocultar todo lo que no es el resultado */
  .site-header,
  .site-footer,
  .wiz-stepper,
  .wiz-disclaimer,
  .wiz-actions,
  .wiz-actions--final,
  .section-heading,
  .wiz-panel-head,
  .ponderado-edit-actions {
    display: none !important;
  }

  /* Container mas compacto */
  .container,
  .container-narrow {
    max-width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  .section { padding: 0 !important; }

  /* Mostrar el panel del step 4 con el resultado */
  .wiz-stage { min-height: 0 !important; }
  .wiz-panel {
    display: block !important;
    opacity: 1 !important;
    transform: none !important;
    box-shadow: none !important;
    border: none !important;
    padding: 0 !important;
    background: #fff !important;
    animation: none !important;
    page-break-inside: avoid;
  }
  .wiz-panel:not(.is-active) {
    display: none !important;
  }
  .wiz-panel.is-active {
    display: block !important;
  }

  /* Header del documento (solo en print) */
  body::before {
    content: "preu.cl \00b7 Puntaje Ponderado PAES 2026";
    display: block;
    font-size: 9pt;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #666 !important;
    margin-bottom: 8pt;
    padding-bottom: 4pt;
    border-bottom: 1px solid #999;
  }

  /* Resultado limpio */
  .ponderado-result-card {
    border: 1px solid #000 !important;
    border-radius: 0 !important;
    padding: 16pt !important;
    box-shadow: none !important;
    background: #fff !important;
    page-break-inside: avoid;
    overflow: visible !important;
  }
  .ponderado-result-card::before {
    display: none !important;
  }
  .ponderado-result-head {
    margin-bottom: 12pt !important;
    padding-bottom: 8pt;
    border-bottom: 1px solid #ccc;
  }
  .ponderado-result-eyebrow {
    color: #000 !important;
    font-size: 8pt !important;
  }
  .ponderado-result-eyebrow::before {
    display: none !important;
  }
  .ponderado-result-scale {
    color: #666 !important;
    font-size: 8pt !important;
  }
  .ponderado-hero {
    margin-bottom: 16pt !important;
    align-items: baseline !important;
  }
  .ponderado-hero-num {
    color: #000 !important;
    font-size: 48pt !important;
    font-weight: 900 !important;
  }
  .ponderado-hero-unit {
    color: #444 !important;
    font-size: 11pt !important;
  }
  .ponderado-hero-area {
    background: transparent !important;
    border: 1px solid #000 !important;
    border-left: 3px solid #000 !important;
    color: #000 !important;
    font-size: 8pt !important;
  }
  .ponderado-aportes {
    border-top: 1px solid #999 !important;
    padding-top: 10pt !important;
    margin-bottom: 10pt !important;
  }
  .ponderado-aportes-titulo {
    color: #000 !important;
    font-size: 8pt !important;
    margin-bottom: 8pt !important;
  }
  .aporte-item {
    padding: 4pt 0 !important;
    border-bottom: 1px dotted #ccc !important;
    page-break-inside: avoid;
  }
  .aporte-nombre {
    color: #000 !important;
    font-size: 10pt !important;
  }
  .aporte-formula {
    color: #444 !important;
    font-size: 9pt !important;
  }
  .aporte-puntaje, .aporte-pond { color: #000 !important; }
  .aporte-x, .aporte-eq { color: #999 !important; }
  .aporte-resultado {
    color: #000 !important;
    font-weight: 800 !important;
  }
  .ponderado-foot {
    color: #555 !important;
    font-size: 8pt !important;
    border-top: 1px solid #ccc !important;
    padding-top: 8pt !important;
    margin-top: 10pt !important;
  }
  .ponderado-foot a { color: #000 !important; text-decoration: underline; }

  /* Quitar print action del print */
  .ponderado-print-action { display: none !important; }

  /* No imprimir links con href (mostrar url como footnote-style) */
  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 8pt;
    color: #666;
  }
  /* Excepto links internos de la app */
  a[href^="/"]::after, a[href^="#"]::after {
    content: "";
  }

  /* Forzar que el wizard NO muestre el resultado si no es step activo */
  [data-panel]:not(.is-active) { display: none !important; }
}

/* ============================================
   FAQ v0.14.0
   ============================================ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--s-12);
  margin-top: var(--s-32);
}
.faq-item {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  box-shadow: var(--sh-sm);
  overflow: hidden;
}
.faq-item[open] {
  border-color: var(--c-brand);
  box-shadow: var(--sh-md);
}
.faq-item summary {
  cursor: pointer;
  padding: var(--s-20) var(--s-24);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--c-text);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  transition: background var(--t-base);
}
.faq-item summary:hover { background: var(--c-surface-2); }
.faq-item summary::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--c-text-muted);
  font-weight: 400;
  line-height: 1;
  transition: transform 200ms ease;
  flex-shrink: 0;
  margin-left: var(--s-12);
}
.faq-item[open] summary::after { transform: rotate(45deg); color: var(--c-accent); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-answer {
  padding: 0 var(--s-24) var(--s-20);
  color: var(--c-text-muted);
  line-height: 1.6;
  font-size: 0.9375rem;
  border-top: 1px solid var(--c-border);
  padding-top: var(--s-16);
}
.faq-answer p { margin: 0; }
.faq-answer a { color: var(--c-accent); }

/* ============================================
   Comparador con Cortes v0.10.0
   ============================================ */
.puntaje-grid--single {
  grid-template-columns: 1fr;
}
.puntaje-grid--single .puntaje-field input {
  max-width: 320px;
  margin: 0 auto;
  font-size: 1.5rem;
  height: 64px;
  text-align: center;
}

.sugerencia-ponderado {
  display: flex;
  align-items: center;
  gap: var(--s-12);
  padding: var(--s-12) var(--s-16);
  background: color-mix(in srgb, var(--c-success) 8%, var(--c-surface));
  border: 1px solid color-mix(in srgb, var(--c-success) 30%, var(--c-border));
  border-radius: var(--r-md);
  font-size: 0.875rem;
  color: var(--c-text);
}
.sugerencia-ponderado--info {
  background: color-mix(in srgb, var(--c-accent) 8%, var(--c-surface));
  border-color: color-mix(in srgb, var(--c-accent) 30%, var(--c-border));
  color: var(--c-text);
}
.sugerencia-ponderado .btn {
  margin-left: auto;
  flex-shrink: 0;
  background: var(--c-success);
  color: var(--c-primary-contrast);
  border-color: var(--c-success);
  height: 32px;
  padding: 0 var(--s-12);
  font-size: 0.8125rem;
  font-weight: 700;
}
.sugerencia-ponderado a { color: var(--c-accent); }

/* Resultado del comparador */
.comparacion-result-card {
  padding: var(--s-32);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--area-color, var(--c-text-muted));
  border-radius: var(--r-lg);
  box-shadow: var(--sh-md);
  position: relative;
  overflow: hidden;
  animation: nem-rise 320ms cubic-bezier(0.16, 1, 0.3, 1);
}
.comparacion-result-head {
  margin-bottom: var(--s-20);
}
.comparacion-result-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-8);
  padding: 4px var(--s-12);
  background: color-mix(in srgb, var(--area-color) 12%, var(--c-surface));
  color: var(--area-color, var(--c-text));
  border: 1px solid color-mix(in srgb, var(--area-color) 30%, var(--c-border));
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}
.comparacion-hero {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--s-32);
  align-items: center;
  margin-bottom: var(--s-32);
  flex-wrap: wrap;
}
.comparacion-mi-puntaje {
  display: flex;
  align-items: baseline;
  gap: var(--s-8);
}
.comparacion-mi-puntaje-num {
  font-size: clamp(3rem, 7vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 0.9;
  color: var(--c-text);
  font-family: var(--f-display);
  font-variant-numeric: tabular-nums;
}
.comparacion-mi-puntaje-unit {
  font-size: 1rem;
  color: var(--c-text-muted);
  font-weight: 600;
}
.comparacion-status {
  display: flex;
  flex-direction: column;
  gap: var(--s-8);
  min-width: 240px;
}
.comparacion-status-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--s-8);
  padding: 6px var(--s-12);
  background: color-mix(in srgb, var(--status-color) 15%, var(--c-surface));
  color: var(--status-color);
  border: 1px solid color-mix(in srgb, var(--status-color) 40%, var(--c-border));
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 700;
  align-self: flex-start;
  font-family: var(--f-display);
  letter-spacing: -0.01em;
}
.comparacion-status-desc {
  font-size: 0.875rem;
  color: var(--c-text-muted);
  line-height: 1.5;
  margin: 0;
}
@media (max-width: 639px) {
  .comparacion-hero { grid-template-columns: 1fr; gap: var(--s-20); }
  .comparacion-result-card { padding: var(--s-24); }
}

/* Barra visual 0-1000 */
.comparacion-bar {
  margin-bottom: var(--s-24);
  padding: var(--s-20) 0;
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--s-20) var(--s-20) var(--s-12);
}
.comparacion-bar-track {
  position: relative;
  height: 36px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 999px;
  margin-bottom: var(--s-8);
}
.comparacion-bar-zona {
  position: absolute;
  top: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
}
.comparacion-bar-zona[data-zona="min"] {
  background: color-mix(in srgb, var(--c-success) 25%, transparent);
  border-right: 2px solid var(--c-success);
}
.comparacion-bar-zona[data-zona="max"] {
  background: color-mix(in srgb, var(--c-success) 50%, transparent);
  border-left: 2px solid var(--c-success);
}
.comparacion-bar-label {
  font-size: 0.625rem;
  font-weight: 700;
  color: var(--c-text);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
  padding: 0 var(--s-8);
}
.comparacion-bar-tu {
  position: absolute;
  top: -8px;
  bottom: -8px;
  width: 3px;
  background: var(--c-text);
  border-radius: 2px;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--c-text) 20%, transparent);
  transform: translateX(-1.5px);
}
.comparacion-bar-tu-label {
  position: absolute;
  top: -22px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--c-text);
  color: var(--c-bg);
  padding: 2px 8px;
  border-radius: var(--r-sm);
  font-size: 0.6875rem;
  font-weight: 700;
  white-space: nowrap;
  font-family: var(--f-mono);
}
.comparacion-bar-leyenda {
  display: flex;
  justify-content: space-between;
  font-size: 0.6875rem;
  color: var(--c-text-muted);
  font-family: var(--f-mono);
  font-weight: 600;
  margin-top: var(--s-12);
}

/* Cortes y carreras tipicas */
.comparacion-cortes {
  margin-bottom: var(--s-20);
  padding-top: var(--s-20);
  border-top: 1px solid var(--c-border);
}
.comparacion-cortes-titulo {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-text-muted);
  margin: 0 0 var(--s-16);
}
.comparacion-cortes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-12);
}
.comparacion-corte-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--s-12) var(--s-16);
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
}
.comparacion-corte-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-text-muted);
}
.comparacion-corte-num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--c-text);
  font-family: var(--f-mono);
  font-variant-numeric: tabular-nums;
}
.comparacion-corte-diff {
  font-size: 0.8125rem;
  color: var(--c-text-muted);
  font-weight: 600;
  font-family: var(--f-mono);
}

.comparacion-carreras {
  margin-bottom: var(--s-20);
}
.comparacion-carreras-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-8);
}
.comparacion-carrera-item {
  display: inline-flex;
  align-items: center;
  padding: 4px var(--s-12);
  background: color-mix(in srgb, var(--area-color) 10%, var(--c-surface));
  color: var(--c-text);
  border: 1px solid color-mix(in srgb, var(--area-color) 25%, var(--c-border));
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
}

/* Print styles especificos del comparador */
@media print {
  .comparacion-result-card {
    border: 1px solid #000 !important;
    border-left: 4px solid #000 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    padding: 16pt !important;
  }
  .comparacion-result-eyebrow {
    background: transparent !important;
    color: #000 !important;
    border: 1px solid #000 !important;
  }
  .comparacion-mi-puntaje-num { color: #000 !important; font-size: 48pt !important; }
  .comparacion-status-badge {
    background: transparent !important;
    border: 1px solid #000 !important;
    color: #000 !important;
  }
  .comparacion-bar {
    background: transparent !important;
    border: 1px solid #000 !important;
  }
  .comparacion-bar-zona {
    background: #ddd !important;
    border-color: #000 !important;
  }
  .comparacion-bar-tu {
    background: #000 !important;
  }
  .comparacion-corte-item {
    background: transparent !important;
    border: 1px solid #000 !important;
  }
  .comparacion-cortes-titulo { color: #000 !important; }
  .comparacion-carrera-item {
    background: transparent !important;
    border: 1px solid #000 !important;
    color: #000 !important;
  }
}

/* ============================================
   Calculadora de Brecha v0.11.0
   ============================================ */
.subpaso-titulo {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-text-muted);
  margin: 0 0 var(--s-12);
  display: flex;
  align-items: center;
  gap: var(--s-8);
}
.subpaso-titulo::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 2px;
  background: var(--c-accent);
}
.step-skip-hint {
  margin-top: var(--s-16);
  padding: var(--s-10) var(--s-14);
  background: var(--c-surface-2);
  border-left: 3px solid var(--c-warn);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  font-size: 0.8125rem;
  color: var(--c-text-muted);
  line-height: 1.5;
}

/* Resultado de brecha */
.brecha-result-card {
  padding: var(--s-32);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--area-color, var(--c-text-muted));
  border-radius: var(--r-lg);
  box-shadow: var(--sh-md);
  position: relative;
  overflow: hidden;
  animation: nem-rise 320ms cubic-bezier(0.16, 1, 0.3, 1);
}
.brecha-result-head {
  margin-bottom: var(--s-24);
}
.brecha-result-eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 4px var(--s-12);
  background: color-mix(in srgb, var(--area-color) 12%, var(--c-surface));
  color: var(--area-color, var(--c-text));
  border: 1px solid color-mix(in srgb, var(--area-color) 30%, var(--c-border));
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}

/* Hero: tu puntaje -> flecha -> corte */
.brecha-hero {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--s-16);
  align-items: center;
  margin-bottom: var(--s-24);
  padding: var(--s-24);
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
}
.brecha-tu-puntaje, .brecha-target {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  align-items: center;
}
.brecha-target { align-items: center; }
.brecha-tu-puntaje-num, .brecha-target-num {
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1;
  font-family: var(--f-display);
  font-variant-numeric: tabular-nums;
}
.brecha-tu-puntaje-num { color: var(--c-text); }
.brecha-target-num { color: var(--area-color, var(--c-accent)); }
.brecha-tu-puntaje-unit, .brecha-target-unit {
  font-size: 0.75rem;
  color: var(--c-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.brecha-arrow {
  color: var(--c-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (max-width: 479px) {
  .brecha-hero { grid-template-columns: 1fr; gap: var(--s-12); }
  .brecha-arrow svg { transform: rotate(90deg); }
}

/* Status */
.brecha-status {
  display: flex;
  flex-direction: column;
  gap: var(--s-8);
  margin-bottom: var(--s-24);
  padding: var(--s-16) var(--s-20);
  background: color-mix(in srgb, var(--status-color) 8%, var(--c-surface));
  border: 1px solid color-mix(in srgb, var(--status-color) 30%, var(--c-border));
  border-radius: var(--r-md);
}
.brecha-status-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px var(--s-12);
  background: var(--status-color);
  color: var(--c-primary-contrast);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 700;
  align-self: flex-start;
  font-family: var(--f-display);
}
.brecha-status-desc {
  font-size: 0.9375rem;
  color: var(--c-text);
  line-height: 1.5;
  margin: 0;
}

/* Distribucion por prueba */
.brecha-distribucion {
  margin-bottom: var(--s-24);
  padding-top: var(--s-20);
  border-top: 1px solid var(--c-border);
}
.brecha-section-titulo {
  font-size: 0.875rem;
  font-weight: 700;
  margin: 0 0 var(--s-4);
  color: var(--c-text);
  letter-spacing: -0.01em;
}
.brecha-section-help {
  font-size: 0.8125rem;
  color: var(--c-text-muted);
  margin: 0 0 var(--s-16);
}
.brecha-distribucion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--s-12);
}
.brecha-prueba-card {
  padding: var(--s-16) var(--s-20);
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  display: flex;
  flex-direction: column;
  gap: var(--s-8);
}
.brecha-prueba-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brecha-prueba-nombre {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--c-text);
}
.brecha-prueba-peso {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--c-surface);
  padding: 2px var(--s-8);
  border-radius: 999px;
  border: 1px solid var(--c-border);
}
.brecha-prueba-cambio {
  display: flex;
  align-items: baseline;
  gap: var(--s-8);
  font-family: var(--f-mono);
}
.brecha-prueba-actual, .brecha-prueba-nuevo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-text);
  font-variant-numeric: tabular-nums;
}
.brecha-prueba-subir {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--c-success);
  font-variant-numeric: tabular-nums;
  padding: 0 var(--s-6);
  background: color-mix(in srgb, var(--c-success) 15%, transparent);
  border-radius: var(--r-sm);
}
.brecha-prueba-arrow {
  color: var(--c-text-muted);
  font-weight: 600;
}
.brecha-prueba-nota {
  font-size: 0.6875rem;
  color: var(--c-text-soft);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}

/* Tip */
.brecha-tip {
  display: flex;
  align-items: center;
  gap: var(--s-12);
  padding: var(--s-12) var(--s-16);
  background: color-mix(in srgb, var(--c-accent) 8%, var(--c-surface));
  border: 1px solid color-mix(in srgb, var(--c-accent) 30%, var(--c-border));
  border-radius: var(--r-md);
  font-size: 0.875rem;
  color: var(--c-text);
  margin-bottom: var(--s-20);
}
.brecha-tip a { color: var(--c-accent); }

/* CTAs */
.brecha-cta {
  display: flex;
  gap: var(--s-12);
  flex-wrap: wrap;
  margin: var(--s-24) 0;
  padding-top: var(--s-20);
  border-top: 1px dashed var(--c-border);
}
.brecha-cta .btn {
  background: var(--c-brand);
  color: var(--c-brand-text);
  border-color: var(--c-brand);
  height: 48px;
  padding: 0 var(--s-24);
  font-weight: 700;
  box-shadow: 0 2px 0 0 var(--c-brand-hover);
  display: inline-flex;
  align-items: center;
}
.brecha-cta .btn:hover {
  background: var(--c-brand-hover);
  border-color: var(--c-brand-hover);
  color: var(--c-brand-text);
  transform: translateY(-1px);
  box-shadow: 0 3px 0 0 color-mix(in srgb, var(--c-brand-hover) 80%, #000);
}
.brecha-cta .btn.btn-secondary {
  background: transparent;
  color: var(--c-text);
  border: 1.5px solid var(--c-border);
  box-shadow: none;
}
.brecha-cta .btn.btn-secondary:hover {
  background: var(--c-surface-2);
  color: var(--c-text);
  transform: none;
  box-shadow: none;
}

/* Print styles especificos de brecha */
@media print {
  .brecha-result-card {
    border: 1px solid #000 !important;
    border-left: 4px solid #000 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    padding: 16pt !important;
  }
  .brecha-hero {
    background: transparent !important;
    border: 1px solid #000 !important;
  }
  .brecha-tu-puntaje-num, .brecha-target-num { color: #000 !important; }
  .brecha-prueba-card {
    background: transparent !important;
    border: 1px solid #000 !important;
  }
  .brecha-prueba-subir { color: #000 !important; background: transparent !important; }
  .brecha-tip { display: none !important; }
  .brecha-cta { display: none !important; }
  .ponderado-edit-actions { display: none !important; }
  .brecha-ia { display: none !important; }
}

/* Seccion de IA en brecha */
.brecha-ia {
  margin-top: var(--s-24);
  padding: var(--s-24);
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
}
.brecha-ia-head {
  display: flex;
  align-items: center;
  gap: var(--s-12);
  margin-bottom: var(--s-8);
}
.brecha-ia-head .brecha-section-titulo { margin: 0; }
.brecha-ia-tag {
  display: inline-flex;
  padding: 2px var(--s-8);
  background: color-mix(in srgb, var(--c-brand) 20%, var(--c-surface));
  color: var(--c-brand-hover);
  border: 1px solid color-mix(in srgb, var(--c-brand) 40%, var(--c-border));
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.brecha-ia-btn {
  background: var(--c-text) !important;
  color: var(--c-bg) !important;
  border-color: var(--c-text) !important;
  height: 44px;
  padding: 0 var(--s-20);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  margin-top: var(--s-12);
  box-shadow: 0 2px 0 0 color-mix(in srgb, var(--c-text) 70%, #000);
}
.brecha-ia-btn:hover:not(:disabled) {
  background: color-mix(in srgb, var(--c-text) 90%, var(--c-accent)) !important;
  border-color: color-mix(in srgb, var(--c-text) 90%, var(--c-accent)) !important;
  color: var(--c-bg) !important;
  transform: translateY(-1px);
  box-shadow: 0 3px 0 0 color-mix(in srgb, var(--c-text) 60%, #000);
}
.brecha-ia-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
}
.brecha-ia-loading {
  display: flex;
  align-items: center;
  gap: var(--s-12);
  padding: var(--s-12) 0;
  color: var(--c-text-muted);
  font-size: 0.875rem;
}
.brecha-ia-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--c-border);
  border-top-color: var(--c-accent);
  border-radius: 999px;
  animation: brecha-ia-spin 800ms linear infinite;
  flex-shrink: 0;
}
@keyframes brecha-ia-spin {
  to { transform: rotate(360deg); }
}
.brecha-ia-source {
  display: inline-flex;
  align-items: center;
  gap: var(--s-6);
  font-size: 0.75rem;
  color: var(--c-text-muted);
  margin: 0 0 var(--s-12);
  padding: 4px var(--s-10);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 999px;
}
.brecha-ia-source strong { color: var(--c-text); }
.brecha-ia-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--s-12);
  counter-reset: brecha-ia-counter;
}
.brecha-ia-item {
  position: relative;
  padding: var(--s-16) var(--s-16) var(--s-16) var(--s-48);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--c-text);
  counter-increment: brecha-ia-counter;
}
.brecha-ia-item-titulo {
  font-weight: 700;
  font-size: 1rem;
  color: var(--c-text);
  margin-bottom: var(--s-4);
  display: flex;
  align-items: center;
  gap: var(--s-6);
}
.brecha-ia-item-detalle {
  color: var(--c-text-muted);
  font-size: 0.9375rem;
  line-height: 1.55;
}
.brecha-ia-item::before {
  content: counter(brecha-ia-counter);
  position: absolute;
  left: var(--s-12);
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  background: var(--c-brand);
  color: var(--c-brand-text);
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  font-family: var(--f-display);
}
.brecha-ia-item--single {
  padding-left: var(--s-16);
}
.brecha-ia-item--single::before { display: none; }
.brecha-ia-error {
  padding: var(--s-12) var(--s-16);
  background: color-mix(in srgb, var(--c-error) 10%, var(--c-surface));
  color: var(--c-error);
  border: 1px solid color-mix(in srgb, var(--c-error) 30%, transparent);
  border-radius: var(--r-md);
  font-size: 0.875rem;
}
.brecha-ia-disclaimer {
  font-size: 0.75rem;
  color: var(--c-text-soft);
  margin: var(--s-16) 0 0;
  font-style: italic;
}


/* ---- Mini-diagnostico CTA (home) ---- */
.diag-cta-card {
  display: flex;
  align-items: center;
  gap: var(--s-20);
  padding: var(--s-20) var(--s-24);
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-left: 4px solid var(--c-warn);
  border-radius: var(--r-md);
  text-decoration: none;
  color: inherit;
  margin-bottom: var(--s-24);
  transition: transform 0.15s, border-color 0.15s, background 0.15s;
}
.diag-cta-card:hover {
  transform: translateY(-1px);
  border-color: var(--c-warn);
  background: color-mix(in srgb, var(--c-warn) 6%, var(--c-surface));
}
.diag-cta-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-warn);
  color: var(--c-warn-contrast);
  border-radius: var(--r-md);
}
.diag-cta-icon svg { width: 24px; height: 24px; }
.diag-cta-body { flex: 1; min-width: 0; }
.diag-cta-kicker {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-warn);
  margin-bottom: 4px;
}
.diag-cta-body h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 0 0 4px;
  color: var(--c-text);
  line-height: 1.2;
}
.diag-cta-body p {
  font-size: 0.875rem;
  color: var(--c-text-muted);
  margin: 0;
  line-height: 1.4;
}
.diag-cta-arrow {
  flex-shrink: 0;
  font-size: 1.5rem;
  color: var(--c-warn);
  font-weight: 700;
  transition: transform 0.15s;
}
.diag-cta-card:hover .diag-cta-arrow {
  transform: translateX(3px);
}
.diag-cta-card.is-done {
  border-left-color: #15803d;
  background: color-mix(in srgb, #15803d 4%, var(--c-surface));
}
.diag-cta-card.is-done .diag-cta-icon { background: #15803d; }
.diag-cta-card.is-done .diag-cta-kicker { color: #15803d; }
.diag-cta-card.is-done .diag-cta-arrow { color: #15803d; }

@media (max-width: 600px) {
  .diag-cta-card {
    padding: var(--s-16);
    gap: var(--s-12);
  }
  .diag-cta-icon { width: 36px; height: 36px; }
  .diag-cta-icon svg { width: 20px; height: 20px; }
  .diag-cta-body h3 { font-size: 1rem; }
  .diag-cta-body p { font-size: 0.8125rem; }
}

/* ============================================
   Pulido visual v0.29.0 — una identidad, menos ruido
   ============================================ */
:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--c-brand) 70%, white);
  outline-offset: 3px;
}
::selection {
  background: var(--c-brand);
  color: #0a0a0a;
}
.hero {
  padding-block: clamp(3.5rem, 7vw, 6rem);
}
.hero-inner {
  max-width: 940px;
}
.hero h1 {
  max-width: 14ch;
  font-size: clamp(2.75rem, 6.2vw, 4.75rem);
  line-height: .98;
  text-wrap: balance;
}
.hero-sub {
  max-width: 66ch;
  font-size: clamp(1.0625rem, 1.8vw, 1.25rem);
  line-height: 1.62;
  text-wrap: pretty;
}
.hero--compact h1 {
  max-width: 18ch;
}
.card {
  border-color: color-mix(in srgb, var(--c-border) 82%, var(--c-text) 18%);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--c-text) 5%, transparent), 0 16px 40px color-mix(in srgb, #000 7%, transparent);
}
.card:hover {
  border-color: color-mix(in srgb, var(--c-accent) 28%, var(--c-border));
}
.section-heading h1,
.section-heading h2 {
  text-wrap: balance;
}
.section-heading p,
.prose > p,
.prose > ul,
.prose > ol {
  max-width: 70ch;
}
.ensayos-filters {
  padding: clamp(1rem, 2.4vw, 1.5rem);
  box-shadow: var(--sh-sm);
}
.ensayos-filter-group {
  align-items: flex-start;
}
.ensayos-filter-label {
  padding-top: .7rem;
}
.ensayos-chip {
  min-height: 40px;
  height: auto;
  padding-inline: 1rem;
}
.nem-field,
.nem-field input,
.nem-field select {
  min-width: 0;
  width: 100%;
}
.nem-actions .btn {
  min-height: 48px;
}
@media (max-width: 639px) {
  .hero {
    padding-block: 3.25rem;
  }
  .hero h1 {
    font-size: clamp(2.45rem, 12vw, 3.25rem);
  }
  .hero-actions {
    align-items: stretch;
  }
  .hero-actions .btn {
    flex: 1 1 100%;
    justify-content: center;
  }
  .hero-stats {
    overflow: hidden;
  }
  .nem-form {
    grid-template-columns: minmax(0, 1fr);
    gap: 1rem;
  }
  .nem-form .nem-actions {
    grid-column: 1;
  }
  .nem-actions .btn {
    flex: 1 1 100%;
    justify-content: center;
  }
  .ensayos-filter-label {
    padding-top: 0;
  }
  .ensayos-filter-chips {
    gap: .625rem;
  }
  .ensayos-chip {
    min-height: 42px;
    padding-inline: .9rem;
    font-size: .8125rem;
  }
}
@media (max-width: 359px) {
  .container,
  .container-narrow {
    padding-inline: 1rem;
  }
  .card,
  .card-lg {
    padding: 1.125rem;
  }
}

/* ============================================
   Afinado visual v0.31.0 — portada y sistema de tarjetas
   ============================================ */
:root {
  --r-md: 10px;
  --r-lg: 16px;
}

.home-hero {
  padding-block: clamp(1.25rem, 3.5vw, 2.25rem) clamp(2.5rem, 5vw, 4.5rem);
}
.home-hero .hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(320px, .84fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4.75rem);
}
.home-hero .hero-copy { min-width: 0; }
.home-hero .eyebrow {
  margin-bottom: var(--s-12);
}
.home-hero h1 {
  max-width: 12ch;
  font-size: clamp(3rem, 5.5vw, 4.75rem);
  margin-bottom: var(--s-16);
}
.home-hero .hero-sub {
  max-width: 59ch;
  margin-bottom: var(--s-20);
}
.home-hero .hero-actions { margin-bottom: 1.25rem; }
.hero-plan-link {
  margin: 0;
  color: var(--c-text-muted);
  font-size: .9375rem;
}

.hero-start-card {
  position: relative;
  padding: clamp(1.5rem, 3vw, 2rem);
  overflow: hidden;
  background: color-mix(in srgb, var(--c-surface) 94%, var(--c-brand));
  border: 1px solid color-mix(in srgb, var(--c-border) 76%, var(--c-text) 24%);
  border-radius: 22px;
  box-shadow: 0 24px 70px color-mix(in srgb, #000 13%, transparent), 0 2px 0 color-mix(in srgb, var(--c-text) 7%, transparent);
}
.hero-start-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 5px;
  background: linear-gradient(90deg, var(--c-brand), var(--c-accent));
}
.hero-start-kicker {
  display: block;
  margin-bottom: .65rem;
  color: var(--c-accent);
  font-family: var(--f-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.hero-start-card h2 {
  max-width: 16ch;
  margin-bottom: 1.4rem;
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  line-height: 1.08;
  text-wrap: balance;
}
.hero-steps {
  margin: 0 0 1.5rem;
  padding: 0;
  display: grid;
  gap: .95rem;
  list-style: none;
}
.hero-steps li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: start;
  gap: .85rem;
}
.hero-steps li > span {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--c-brand-text);
  background: var(--c-brand);
  border: 1px solid var(--c-brand-hover);
  border-radius: 50%;
  font-family: var(--f-mono);
  font-size: .8rem;
  font-weight: 800;
}
.hero-steps strong,
.hero-steps small { display: block; }
.hero-steps strong {
  color: var(--c-text);
  font-size: .94rem;
  line-height: 1.3;
}
.hero-steps small {
  margin-top: 2px;
  color: var(--c-text-muted);
  font-size: .81rem;
  line-height: 1.45;
}
.hero-start-link {
  min-height: 46px;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--c-primary-contrast) !important;
  background: var(--c-primary);
  border: 1px solid var(--c-primary);
  border-radius: 12px;
  font-weight: 750;
  text-decoration: none;
}
.hero-start-link:visited { color: var(--c-primary-contrast) !important; }
.hero-start-link:hover {
  color: var(--c-accent-contrast) !important;
  background: var(--c-accent);
  border-color: var(--c-accent);
  text-decoration: none;
}
.hero-start-card > p {
  margin: .85rem 0 0;
  color: var(--c-text-muted);
  font-size: .75rem;
  text-align: center;
}

.hero-stat-num--word {
  padding-top: .1em;
  font-size: clamp(1.05rem, 2.3vw, 1.55rem);
  letter-spacing: .08em;
}
.section-heading { margin-bottom: clamp(1.75rem, 3.5vw, 2.5rem); }
.section-heading h2 { font-size: clamp(2rem, 4vw, 3rem); }
.tool-card {
  height: 100%;
  border-radius: 16px;
  box-shadow: 0 1px 0 color-mix(in srgb, var(--c-text) 6%, transparent), 0 12px 34px color-mix(in srgb, #000 6%, transparent);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}
.tool-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 2px 0 color-mix(in srgb, var(--c-text) 7%, transparent), 0 18px 42px color-mix(in srgb, #000 10%, transparent);
}
.site-footer .footer-grid h4 { letter-spacing: -.01em; }

@media (max-width: 919px) {
  .home-hero .hero-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.25rem;
  }
  .home-hero .hero-copy,
  .hero-start-card { max-width: 720px; }
  .hero-start-card h2 { max-width: 22ch; }
}
@media (max-width: 639px) {
  .home-hero { padding-block: 1.5rem 2rem; }
  .home-hero h1 {
    max-width: 11ch;
    font-size: clamp(2.55rem, 12vw, 3.35rem);
  }
  .home-hero .hero-sub { font-size: 1rem; }
  .hero-start-card {
    padding: 1.35rem;
    border-radius: 18px;
  }
  .hero-start-card h2 { font-size: 1.5rem; }
  .hero-stat-num--word { font-size: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  .tool-card { transition: none; }
  .tool-card:hover { transform: none; }
}

/* Sendero / Duolingo Map Styles */
.sendero-node-btn {
  background: var(--c-surface-3);
  color: var(--c-text-soft);
  border: 1px solid var(--c-border);
  box-shadow: 0 4px 0 var(--c-border);
  transform: translateY(0);
}
.sendero-node-btn:hover {
  transform: scale(1.05);
}
.sendero-node-btn:active {
  transform: translateY(4px);
  box-shadow: none;
}
.node-completed {
  background: #10b981 !important;
  color: #ffffff !important;
  box-shadow: 0 4px 0 #059669 !important;
}
.node-active {
  background: var(--c-brand) !important;
  color: var(--c-brand-text) !important;
  box-shadow: 0 4px 0 var(--c-brand-hover) !important;
  animation: pulse-active 2s infinite;
}
.node-locked {
  background: var(--c-surface-3) !important;
  color: var(--c-text-soft) !important;
  box-shadow: 0 4px 0 var(--c-border) !important;
}
@keyframes pulse-active {
  0% {
    box-shadow: 0 4px 0 var(--c-brand-hover), 0 0 0 0px rgba(109, 40, 217, 0.4);
  }
  70% {
    box-shadow: 0 4px 0 var(--c-brand-hover), 0 0 0 10px rgba(109, 40, 217, 0);
  }
  100% {
    box-shadow: 0 4px 0 var(--c-brand-hover), 0 0 0 0px rgba(109, 40, 217, 0);
  }
}