/* Estilos propios de biblioteca/examenes/simulador-admision-universidad/index.html. */

/* Reglas particulares extraídas del antiguo sistema visual. */
.eyebrow {
  display: block;
  margin: 0 0 1.3rem;
  color: var(--color-muted);
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1,
h2,
h3 {
  margin-top: 0;
  color: var(--color-text);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 820px;
  margin-bottom: 1.5rem;
  font-size: clamp(2.65rem, 6.3vw, 5.9rem);
  font-weight: 900;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2rem, 4vw, 3.6rem);
  font-weight: 850;
}

h3 {
  margin-bottom: 0.75rem;
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

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



@media (max-width: 640px) {

h1 { font-size: clamp(2.35rem, 13vw, 3.7rem); }

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

.learning-site {
  --learning-blue: #1f5fbd;
  --learning-blue-dark: #164991;
  --learning-green: #15784e;
  --learning-red: #b43b3b;
}

.learning-site [hidden] {
  display: none !important;
}

.learning-hero h1,
.learning-page-hero h1,
.exam-hero h1 {
  max-width: 1050px;
  margin: 0;
  font-size: clamp(3.2rem, 8vw, 7rem);
  line-height: 0.98;
  letter-spacing: -0.065em;
}

.learning-section-heading {
  max-width: 870px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.learning-section-heading h2,
.exam-cta h2 {
  margin: 0;
  font-size: clamp(2.4rem, 5.2vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.05em;
}

.learning-section-heading p,
.exam-cta > .container > p {
  max-width: 760px;
  margin: 1rem 0 0;
  color: var(--color-muted);
  font-size: clamp(1rem, 1.4vw, 1.15rem);
}



.learning-note {
  max-width: 1030px;
  margin: clamp(2.5rem, 5vw, 4rem) 0;
  padding: clamp(1.3rem, 2.5vw, 2rem);
  border-left: 4px solid var(--color-text);
  background: var(--color-background);
}

.lesson-section:not(.lesson-section-surface) .learning-note,
.exam-introduction .learning-note {
  background: var(--color-surface);
}

.learning-note strong,
.lesson-reminder > strong {
  display: block;
  font-size: 1.05rem;
}

.learning-note p,
.lesson-reminder p {
  margin: 0.5rem 0 0;
  color: #3c3c37;
}

.operation-lesson h3,
.signs-tables h3,
.numeric-examples h3,
.calculator-results > h3,
.exam-topic-grid h3 {
  margin: 0;
  font-size: clamp(1.35rem, 2.1vw, 1.75rem);
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.learning-button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0.78rem 1.15rem;
  border: 1px solid var(--color-text);
  border-radius: var(--radius);
  background: var(--color-dark);
  color: var(--color-light);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 850;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.learning-button:hover:not(:disabled) {
  transform: translateY(-2px);
}

.learning-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.learning-button-light {
  border-color: var(--color-light);
  background: var(--color-light);
  color: var(--color-text);
}

.exam-hero {
  padding: clamp(4.5rem, 9vw, 8rem) 0;
  background: var(--color-dark);
  color: var(--color-light);
}

.exam-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(270px, 0.55fr);
  align-items: end;
  gap: clamp(3rem, 7vw, 6rem);
}

.exam-hero h1 {
  max-width: 900px;
  color: var(--color-light);
  font-size: clamp(2.8rem, 6.7vw, 6.2rem);
}

.exam-subtitle {
  margin: 1.4rem 0 0;
  color: #c7c7c1;
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  font-weight: 850;
  letter-spacing: 0.08em;
}

.exam-facts {
  margin: 0;
  border-top: 1px solid #52524e;
}

.exam-facts div {
  display: grid;
  grid-template-columns: 0.65fr 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid #52524e;
}

.exam-facts dt {
  color: #aaa9a4;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.exam-facts dd {
  margin: 0;
  font-weight: 800;
}

.exam-introduction {
  padding: clamp(3.5rem, 7vw, 5.5rem) 0;
  background: var(--color-background);
}

.exam-introduction > .narrow > p {
  margin: 0;
  font-size: clamp(1.08rem, 1.65vw, 1.3rem);
  line-height: 1.75;
}

.exam-topics-section {
  padding: clamp(4.5rem, 8vw, 7rem) 0;
  background: var(--color-surface);
}

.exam-topic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 5vw, 4rem);
}

.exam-topic-grid article {
  padding-top: 1.2rem;
  border-top: 2px solid var(--color-text);
}

.exam-topic-grid ul {
  display: grid;
  gap: 0.45rem;
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  color: #3d3d39;
}

.exam-cta {
  padding: clamp(4.5rem, 9vw, 8rem) 0;
  background: var(--color-dark);
  color: var(--color-light);
  text-align: center;
}

.exam-cta h2 {
  color: var(--color-light);
}

.exam-cta > .container > p {
  margin-inline: auto;
  color: #c9c9c3;
}

.exam-cta .learning-button {
  margin-top: 2rem;
}

@media (max-width: 900px) {

.fraction-introduction,
  .interactive-layout,
  .exam-hero-grid,
  .game-rule {
    grid-template-columns: 1fr;
  }

.operation-lessons,
  .exam-topic-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
.learning-hero,
  .learning-page-hero,
  .exam-hero {
    padding: 3.5rem 0 4rem;
  }

.learning-hero h1,
  .learning-page-hero h1,
  .exam-hero h1 {
    font-size: clamp(3rem, 15vw, 4.5rem);
  }

.sign-calculator > .learning-button {
    width: 100%;
  }

.game-choice-buttons .learning-button {
    flex: 1;
  }
}

@media (max-width: 640px) {

.task-board-toolbar,
  .task-board-toolbar .learning-button {
    width: 100%;
  }

.task-dialog-actions .learning-button {
    flex: 1;
  }
}

/* Componentes modulares utilizados por esta página. */
.breadcrumbs {
  padding-top: 1.25rem;
  color: var(--color-muted);
  font-size: 0.86rem;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.breadcrumbs li:not(:last-child)::after {
  content: "/";
  color: #a2a29b;
}

.breadcrumbs a {
  text-decoration: none;
}

.breadcrumbs a:hover {
  text-decoration: underline;
}

@media (max-width: 480px) {
.breadcrumbs {
    font-size: 0.78rem;
  }
}