/* Peptivé — Biblioteca Científica
   Estilos exclusivos de ciencia.html. Requiere tokens.css,
   base.css y sections.css cargados antes (reutiliza .container,
   .grain-overlay, .fade-up y el header/footer compartidos). */

body {
  background-color: var(--travertine-light);
}

/* ============================================
   HERO + PILAR 1 — FUNDAMENTOS CLÍNICOS
   ============================================ */

.ciencia-hero {
  padding: var(--s-7) 0 var(--s-6);
  text-align: center;
}

.ciencia-hero-title {
  font-family: var(--font-editorial);
  font-weight: 300;
  font-variation-settings: 'opsz' 144;
  font-size: var(--text-heading-l-size);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--ink-100);
  max-width: 20ch;
  margin-inline: auto;
  margin-bottom: var(--s-3);
}

.ciencia-hero-subtitle {
  font-family: var(--font-editorial);
  font-style: italic;
  font-weight: 300;
  font-variation-settings: 'opsz' 24;
  font-size: var(--text-body-l-size);
  color: var(--ink-70);
  max-width: 48ch;
  margin-inline: auto;
}

.ciencia-fundamentos-section {
  padding-bottom: var(--s-7);
}

.ciencia-pilar-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s-4);
}

@media (min-width: 768px) {
  .ciencia-pilar-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.ciencia-pilar-card {
  background-color: var(--paper);
  border: 1px solid color-mix(in srgb, var(--ink) 8%, transparent);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-sm);
  padding: var(--s-5);
}

.ciencia-pilar-card-mark {
  display: block;
  width: 32px;
  height: 2px;
  background-color: var(--gold);
  margin-bottom: var(--s-3);
}

.ciencia-pilar-card-title {
  font-family: var(--font-editorial);
  font-weight: 300;
  font-variation-settings: 'opsz' 32;
  font-size: var(--text-heading-m-size);
  line-height: 1.2;
  overflow-wrap: break-word;
  color: var(--ink-100);
  margin-bottom: var(--s-2);
}

.ciencia-pilar-card-text {
  color: var(--ink-70);
}

/* ============================================
   PILAR 2 — BIBLIOTECA DE EVIDENCIA
   Fondo paper puro: única franja del sitio con contraste
   ligero (no travertine, no ink) frente al fondo general de la
   página, tal como se pidió.
   ============================================ */

.ciencia-evidence-section {
  background-color: var(--paper);
  padding-block: var(--space-section-y);
  border-block: 1px solid var(--ink-30);
}

.ciencia-section-title {
  font-family: var(--font-editorial);
  font-weight: 300;
  font-variation-settings: 'opsz' 144;
  font-size: var(--text-heading-l-size);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink-100);
  max-width: 24ch;
  margin-bottom: var(--s-5);
}

.ciencia-studies {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
}

.ciencia-study-card {
  background-color: var(--travertine-light);
  border: 1px solid color-mix(in srgb, var(--ink) 8%, transparent);
  border-radius: var(--r-md);
  padding: var(--s-5);
}

.ciencia-study-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px var(--s-2);
  border-radius: var(--r-pill);
  background-color: var(--gold-pale);
  font-family: var(--font-body);
  font-weight: var(--weight-body-semibold);
  font-size: var(--text-label-size);
  line-height: var(--text-label-line);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-bottom: var(--s-3);
}

.ciencia-study-title {
  font-family: var(--font-editorial);
  font-weight: 300;
  font-variation-settings: 'opsz' 32;
  font-size: var(--text-heading-m-size);
  line-height: 1.2;
  overflow-wrap: break-word;
  color: var(--ink-100);
  margin-bottom: var(--s-3);
}

.ciencia-study-summary {
  color: var(--ink-70);
  max-width: 75ch;
  margin-bottom: var(--s-3);
}

.ciencia-study-link {
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  font-family: var(--font-body);
  font-weight: var(--weight-body-semibold);
  font-size: var(--text-label-size);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--gold-deep);
}

.ciencia-study-link:hover,
.ciencia-study-link:focus-visible {
  color: var(--gold);
}

.ciencia-study-link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.ciencia-study-pending {
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  font-family: var(--font-body);
  font-weight: var(--weight-body-semibold);
  font-size: var(--text-label-size);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--ink-50);
}

/* ============================================
   PILAR 3 — PERSPECTIVA CLÍNICA (KOLs)
   ============================================ */

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

.ciencia-kol-header {
  text-align: center;
  max-width: 60ch;
  margin-inline: auto;
  margin-bottom: var(--s-6);
}

.ciencia-kol-header .ciencia-section-title {
  max-width: none;
  margin-bottom: var(--s-2);
}

.ciencia-kol-subtitle {
  font-family: var(--font-editorial);
  font-style: italic;
  font-weight: 300;
  font-variation-settings: 'opsz' 24;
  font-size: var(--text-body-l-size);
  color: var(--ink-70);
}

.ciencia-video-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s-5);
}

@media (min-width: 768px) {
  .ciencia-video-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.ciencia-video-placeholder {
  position: relative;
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--travertine-deep);
  border: 1px solid color-mix(in srgb, var(--ink) 10%, transparent);
  border-radius: var(--r-md);
  margin-bottom: var(--s-3);
  overflow: hidden;
}

.ciencia-video-play {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: color-mix(in srgb, var(--paper) 90%, transparent);
  color: var(--ink-100);
  box-shadow: var(--shadow-md);
}

.ciencia-video-play svg {
  width: 22px;
  height: 22px;
  margin-left: 3px;
}

.ciencia-video-title {
  font-weight: var(--weight-body-bold);
  font-size: var(--text-body-l-size);
  line-height: var(--text-body-l-line);
  color: var(--ink-100);
  margin-bottom: var(--s-1);
}

.ciencia-video-subtitle {
  font-size: var(--text-body-m-size);
  color: var(--ink-70);
}

/* ============================================
   PILAR 4 — TRANSPARENCIA Y COAs
   ============================================ */

.ciencia-coa-section {
  padding-bottom: var(--s-7);
}

.ciencia-coa-banner {
  text-align: center;
  background-color: var(--paper);
  border: 2px solid var(--ink-100);
  border-radius: var(--r-md);
  padding: var(--s-6) var(--s-5);
}

.ciencia-coa-title {
  font-family: var(--font-editorial);
  font-weight: 300;
  font-variation-settings: 'opsz' 144;
  font-size: var(--text-heading-l-size);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink-100);
  max-width: 28ch;
  margin-inline: auto;
  margin-bottom: var(--s-3);
}

.ciencia-coa-text {
  font-size: var(--text-body-l-size);
  line-height: var(--text-body-l-line);
  color: var(--ink-70);
  max-width: 60ch;
  margin-inline: auto;
  margin-bottom: var(--s-5);
}

.ciencia-coa-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  max-width: 100%;
  box-sizing: border-box;
  padding: var(--s-3) var(--s-5);
  border: none;
  border-radius: var(--r-sm);
  background-color: var(--ink-100);
  color: var(--paper);
  font-family: var(--font-body);
  font-weight: var(--weight-body-bold);
  font-size: var(--text-body-m-size);
  text-align: center;
  white-space: normal;
  cursor: pointer;
}

@media (max-width: 360px) {
  .ciencia-coa-button {
    padding: var(--s-3) var(--s-4);
    font-size: var(--text-body-s-size, 0.85rem);
  }
}

.ciencia-coa-button:hover {
  background-color: var(--ink-90);
}

.ciencia-coa-button:active {
  background-color: var(--ink-70);
}

.ciencia-coa-button:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.ciencia-coa-note {
  font-size: var(--text-caption-size, 0.8rem);
  color: var(--ink-50);
  max-width: 60ch;
  margin-inline: auto;
  margin-top: var(--s-4);
}