/* QueHayBA — estilos compartidos para páginas SEO (detalle, hubs, sobre, contacto).
   Versión liviana del sistema MD3 que vive en dist-preview/v5/index.html.
   Mantener cohesión visual con la home sin duplicar las 200KB de CSS de la SPA. */

:root {
  color-scheme: light dark;

  --md-sys-color-primary: #00658B;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #C7E7FF;
  --md-sys-color-on-primary-container: #001E2C;
  --md-sys-color-secondary: #4F616E;
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-secondary-container: #D3E5F5;
  --md-sys-color-on-secondary-container: #0B1D29;
  --md-sys-color-tertiary: #B62B17;
  --md-sys-color-on-tertiary: #FFFFFF;
  --md-sys-color-tertiary-container: #FFDAD2;
  --md-sys-color-on-tertiary-container: #410001;

  --md-sys-color-surface: #F8FAFC;
  --md-sys-color-on-surface: #181C20;
  --md-sys-color-on-surface-variant: #41484D;
  --md-sys-color-surface-container-low: #F2F4F7;
  --md-sys-color-surface-container: #ECEEF2;
  --md-sys-color-surface-container-high: #E6E9ED;
  --md-sys-color-outline: #71787D;
  --md-sys-color-outline-variant: #C1C7CD;

  /* topic colors (para chips de tipo) */
  --topic-musica:      #FF5A3C;
  --topic-teatro:      #7B3FA8;
  --topic-cine:        #0E7FBF;
  --topic-arte:        #E8A23B;
  --topic-literatura:  #2F855A;
  --topic-festival:    #D946A3;
  --topic-danza:       #DC2626;
  --topic-gastronomia: #C77E1B;
  --topic-standup:     #FBBF24;
  --topic-default:     #4F616E;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.06), 0 1px 3px rgba(0,0,0,.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --md-sys-color-primary: #84CFFF;
    --md-sys-color-on-primary: #00344C;
    --md-sys-color-primary-container: #004C6B;
    --md-sys-color-on-primary-container: #C7E7FF;
    --md-sys-color-surface: #101418;
    --md-sys-color-on-surface: #E1E3E5;
    --md-sys-color-on-surface-variant: #C1C7CD;
    --md-sys-color-surface-container-low: #181C20;
    --md-sys-color-surface-container: #1D2024;
    --md-sys-color-surface-container-high: #272A2E;
    --md-sys-color-outline: #8B9197;
    --md-sys-color-outline-variant: #41484D;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: 'Manrope', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--md-sys-color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ----- Header / nav ----- */
.qhb-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--md-sys-color-surface) 92%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}
.qhb-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  justify-content: space-between;
}
.qhb-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  color: var(--md-sys-color-on-surface);
}
.qhb-brand img { width: 32px; height: 32px; border-radius: 8px; }
.qhb-brand:hover { text-decoration: none; }
.qhb-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.qhb-nav a {
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--md-sys-color-on-surface-variant);
  font-weight: 500;
  font-size: 14px;
  transition: background .15s;
}
.qhb-nav a:hover {
  background: var(--md-sys-color-surface-container-high);
  text-decoration: none;
}
.qhb-nav a.is-active {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}
@media (max-width: 720px) {
  .qhb-nav a { padding: 6px 10px; font-size: 13px; }
  .qhb-header-inner { padding: 10px 14px; gap: 8px; }
}

/* ----- Layout ----- */
.qhb-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}
.qhb-container.is-narrow { max-width: 760px; }

/* breadcrumbs */
.qhb-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant);
  margin: 0 0 16px;
}
.qhb-breadcrumbs a { color: var(--md-sys-color-on-surface-variant); }
.qhb-breadcrumbs a:hover { color: var(--md-sys-color-primary); }
.qhb-breadcrumbs .sep { opacity: .5; }

/* hero del evento o hub (legacy / hubs) */
.qhb-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 32px;
}
@media (min-width: 840px) {
  .qhb-hero.has-image { grid-template-columns: minmax(0, 360px) 1fr; }
}
.qhb-hero-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--md-sys-color-surface-container);
  aspect-ratio: 4 / 3;
}
.qhb-hero-media img { width: 100%; height: 100%; object-fit: cover; }
.qhb-hero-body h1 {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.15;
  font-weight: 800;
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}
.qhb-hero-body .lead {
  font-size: 17px;
  color: var(--md-sys-color-on-surface-variant);
  margin: 0 0 20px;
}
.qhb-meta-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 16px 0 24px;
  padding: 0;
  list-style: none;
}
.qhb-meta-list li {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  color: var(--md-sys-color-on-surface);
}
.qhb-meta-list li .label {
  font-weight: 600;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.qhb-topic-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--topic, var(--topic-default));
  color: #fff;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ----- Event detail hero (rediseño 2026-05-16) ----- */
.qhb-event { display: block; }

.qhb-event-hero {
  position: relative;
  margin: 0 0 40px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--md-sys-color-surface-container);
  box-shadow: var(--shadow-md);
}
.qhb-event-visual {
  position: relative;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--topic) 96%, #000),
    color-mix(in srgb, var(--topic) 75%, #000));
  overflow: hidden;
}
@media (max-width: 720px) {
  .qhb-event-visual { aspect-ratio: 4 / 3; }
}
.qhb-event-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.qhb-event-visual-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 35%, rgba(0,0,0,0.55) 100%);
  pointer-events: none;
}
.qhb-event-visual-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.qhb-event-pattern {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 1;
}
.qhb-event-fallback-label {
  position: relative;
  z-index: 1;
  color: rgba(255,255,255,0.92);
  font-weight: 800;
  font-size: clamp(28px, 5vw, 56px);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-shadow: 0 2px 24px rgba(0,0,0,0.25);
}

.qhb-event-info {
  padding: 24px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
@media (min-width: 720px) {
  .qhb-event-info { padding: 28px 36px 32px; }
}
.qhb-event-info .qhb-topic-chip {
  align-self: flex-start;
}
.qhb-event-info h1 {
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.15;
  font-weight: 800;
  margin: 0;
  letter-spacing: -0.02em;
  color: var(--md-sys-color-on-surface);
}

/* meta chips */
.qhb-meta-chips {
  list-style: none;
  margin: 6px 0 4px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.qhb-meta-chips li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--md-sys-color-on-surface);
}
.qhb-meta-chips .qhb-meta-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--topic, var(--md-sys-color-on-surface-variant));
}

/* CTA principal y grupo */
.qhb-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 10px;
}
.qhb-cta--lg {
  padding: 16px 26px;
  font-size: 16px;
  background: var(--md-sys-color-on-surface);
  color: var(--md-sys-color-surface);
}
.qhb-cta--lg:hover {
  background: color-mix(in srgb, var(--md-sys-color-on-surface) 88%, var(--md-sys-color-surface));
}
.qhb-cta--md {
  padding: 12px 22px;
  font-size: 15px;
  background: var(--md-sys-color-on-surface);
  color: var(--md-sys-color-surface);
}
.qhb-cta--md:hover {
  background: color-mix(in srgb, var(--md-sys-color-on-surface) 88%, var(--md-sys-color-surface));
}

/* secciones de detalle */
.qhb-event-section {
  margin: 40px 0;
}
.qhb-event-section-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 14px;
  letter-spacing: -0.01em;
  color: var(--md-sys-color-on-surface);
}

/* descripción */
.qhb-event-desc .qhb-description {
  font-size: 16px;
  line-height: 1.75;
  color: var(--md-sys-color-on-surface);
  margin: 0;
  max-width: 70ch;
  white-space: pre-wrap;
}
.qhb-event-desc .qhb-description p { margin: 0 0 1em; }

/* card "sin descripción" */
.qhb-empty-card {
  background: var(--md-sys-color-surface-container-low);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
  max-width: 70ch;
}
.qhb-empty-card p {
  margin: 0;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 15px;
  line-height: 1.6;
}

/* CTA principal */
.qhb-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  box-shadow: var(--shadow-sm);
  transition: transform .12s, box-shadow .12s;
}
.qhb-cta:hover {
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.qhb-cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  background: var(--md-sys-color-surface-container-high);
  color: var(--md-sys-color-on-surface);
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid var(--md-sys-color-outline-variant);
}
.qhb-cta-secondary:hover { text-decoration: none; background: var(--md-sys-color-surface-container); }
.qhb-cta-group { display: flex; flex-wrap: wrap; gap: 12px; margin: 8px 0 24px; }

/* descripción */
.qhb-description {
  font-size: 16px;
  line-height: 1.7;
  color: var(--md-sys-color-on-surface);
  margin: 24px 0;
  max-width: 70ch;
  white-space: pre-wrap;
}
.qhb-description p { margin: 0 0 1em; }

/* secciones */
.qhb-section { margin: 48px 0; }
.qhb-section h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}
.qhb-section h2 a {
  color: inherit;
}

/* grilla de cards */
.qhb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}
.qhb-card {
  display: flex;
  flex-direction: column;
  background: var(--md-sys-color-surface-container-low);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--md-sys-color-outline-variant);
  transition: transform .12s, box-shadow .12s, border-color .12s;
  color: inherit;
}
.qhb-card:hover {
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--md-sys-color-outline);
}
.qhb-card-media {
  aspect-ratio: 16 / 10;
  background: var(--md-sys-color-surface-container);
  position: relative;
  overflow: hidden;
}
.qhb-card-media img {
  width: 100%; height: 100%; object-fit: cover;
}
.qhb-card-media .topic {
  position: absolute;
  top: 10px;
  left: 10px;
}
.qhb-card-media.is-fallback {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--topic, var(--topic-default)) 96%, #000),
    color-mix(in srgb, var(--topic, var(--topic-default)) 72%, #000));
  display: flex;
  align-items: center;
  justify-content: center;
}
.qhb-card-fallback-label {
  color: rgba(255,255,255,0.85);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.qhb-card-body {
  padding: 14px 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.qhb-card-when {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--md-sys-color-on-surface-variant);
}
.qhb-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 0;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.qhb-card .where {
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant);
}

/* day grouping para hubs */
.qhb-day {
  margin: 32px 0;
}
.qhb-day h2 {
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  padding-bottom: 6px;
}

/* FAQ */
.qhb-faq { margin: 48px 0; }
.qhb-faq details {
  background: var(--md-sys-color-surface-container-low);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin: 0 0 10px;
}
.qhb-faq summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.qhb-faq summary::-webkit-details-marker { display: none; }
.qhb-faq summary::after {
  content: "+";
  float: right;
  font-size: 20px;
  font-weight: 400;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1;
}
.qhb-faq details[open] summary::after { content: "−"; }
.qhb-faq .answer {
  margin-top: 10px;
  font-size: 15px;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.6;
}

/* footer */
.qhb-footer {
  border-top: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface-container);
  padding: 36px 20px 24px;
  margin-top: 64px;
}
.qhb-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.qhb-footer-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 28px;
  margin: 0 0 24px;
}
.qhb-footer-col h4 {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--md-sys-color-on-surface-variant);
  margin: 0 0 12px;
}
.qhb-footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.qhb-footer-col a {
  color: var(--md-sys-color-on-surface);
  font-size: 14px;
}
.qhb-footer-bottom {
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant);
  border-top: 1px solid var(--md-sys-color-outline-variant);
  padding-top: 16px;
  line-height: 1.6;
}
.qhb-footer-bottom a { color: var(--md-sys-color-primary); }

/* hub intro */
.qhb-intro {
  font-size: 17px;
  line-height: 1.7;
  color: var(--md-sys-color-on-surface);
  max-width: 70ch;
  margin: 0 0 32px;
}

/* sobre / contacto layouts */
.qhb-prose h1 {
  font-size: clamp(32px, 5vw, 48px);
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}
.qhb-prose h2 {
  font-size: 22px;
  margin: 36px 0 12px;
}
.qhb-prose p {
  font-size: 16px;
  line-height: 1.7;
  margin: 0 0 1em;
  color: var(--md-sys-color-on-surface);
}
.qhb-prose a { text-decoration: underline; }

/* badge "Volver al home" */
.qhb-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 16px;
}