/* Orientación, ritmo entre secciones y navegación de las demos. */
:root {
  --section-tint: #eff7fa;
  --section-line: #d4e5ec;
}

main { min-width: 0; }
main:focus { outline: none; }
main > section[id] { scroll-margin-top: 100px; }

.skip-link {
  position: fixed;
  top: 10px;
  left: 16px;
  z-index: 1100;
  padding: 12px 18px;
  border-radius: 10px;
  background: var(--primary);
  color: white;
  font-weight: 700;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

header .nav-container { gap: 22px; }
header nav ul { align-items: center; gap: 5px; }
header nav li a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 12px;
  border-radius: 10px;
  border-bottom: 3px solid transparent;
  font-size: 14px;
  font-weight: 650;
  line-height: 1.3;
  transition: background-color .18s, border-color .18s, color .18s;
}
header nav li a:hover,
header nav a[aria-current="location"] {
  background: #edf7fa;
  color: var(--primary);
}
header nav a[aria-current="location"] { border-bottom-color: #208ba3; }
header nav .nav-quote {
  background: var(--primary);
  color: white;
  padding-inline: 16px;
  margin-inline: 5px;
}
header nav .nav-quote:hover,
header nav .nav-quote[aria-current="location"] {
  background: var(--dark);
  color: white;
  border-bottom-color: var(--secondary);
}

.section-kicker,
.ai-intro-wrap .section-kicker {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 0 auto 16px;
  color: #266179;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.section-kicker > span {
  display: inline-grid;
  place-items: center;
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  border: 1px solid #aacfdc;
  border-radius: 50%;
  background: white;
  font-size: 11px;
  letter-spacing: .025em;
  font-variant-numeric: tabular-nums;
}
#problemas,
#sectores,
#portafolio,
#proceso,
#cotizador,
#faq,
#contacto { padding-block: clamp(48px, 6vw, 80px); }
#problemas { background: var(--dark); }
#problemas .section-kicker { color: #95d8e8; }
#problemas .section-kicker > span {
  color: #b8e9f2;
  border-color: #536783;
  background: #ffffff09;
}
#sectores,
#proceso { background: var(--section-tint); }
#portafolio,
#faq { background: white; }
#proceso {
  max-width: none;
  border-block: 1px solid var(--section-line);
}
#sectores .info-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
#sectores .info-card { display: flex; flex-direction: column; align-items: center; }
#sectores .info-card > p:last-of-type { margin-bottom: 20px; }
.sector-demo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  margin-top: auto;
  padding: 8px 2px;
  color: var(--primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
  font-size: 14px;
  font-weight: 750;
}
.sector-demo:hover { color: #087b96; }
.sector-demo i { font-size: 13px; margin: 0; color: inherit; }

.demo-gallery {
  margin-top: 44px;
  padding-top: 32px;
  border-top: 1px solid var(--section-line);
}
.demo-gallery-title { color: var(--dark); font-size: 24px; margin-bottom: 6px; }
.demo-gallery-intro { color: var(--text-muted); max-width: 65ch; }
.demo-gallery .portfolio-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 24px;
  align-items: start;
}
.demo-gallery .portfolio-item { min-width: 0; border-color: var(--section-line); border-radius: 16px; }
.demo-gallery .portfolio-preview { height: 180px; }
.demo-gallery .portfolio-info { padding: 20px; }
.demo-gallery .portfolio-info > h3 { font-size: 19px; margin-bottom: 8px; }
.demo-gallery .demo-btn { margin-top: 16px; min-height: 44px; border-radius: 10px; }
.demo-details { margin-top: 12px; border-top: 1px solid #e4ecf0; }
.demo-details > summary {
  min-height: 44px;
  padding: 12px 0 4px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
}
.demo-details[open] > summary { padding-bottom: 8px; }
.demo-details .case-detail { margin-top: 10px; line-height: 1.6; }
.demo-details .case-features { gap: 6px; }
.demo-details .case-features li { padding: 5px 9px; }
.section-action small { display: block; margin-top: 10px; color: var(--text-muted); font-size: 14px; }

#cotizador { border-top: 0; background: #f8fbfc; }
#cotizador .ai-container {
  max-width: 1320px;
  border: 2px solid #9fd5e1;
  border-top: 5px solid var(--secondary);
  border-radius: 22px;
  background: white;
  box-shadow: 0 14px 36px #1c2b5909;
}
#cotizador .ai-intro-wrap { margin-bottom: 28px; }
#cotizador .diagnostic-goal { background: #f4fafc; border-color: #b9dbe4; }
#cotizador #business-desc { min-height: 130px; }
#contacto { border-top-color: var(--section-line); }
#contacto .contact-details { overflow-wrap: anywhere; }

.floating-quote-cta,
.floating-whatsapp { z-index: 900; }
.floating-quote-cta { min-height: 48px; }
.floating-quote-cta[hidden] { display: none; }

@media (min-width: 769px) and (max-width: 1100px) {
  header .nav-container { gap: 14px; padding-inline: 18px; }
  header nav ul { flex-wrap: wrap; justify-content: flex-end; gap: 2px; }
  header nav li a { padding: 8px; font-size: 13px; }
  header nav .nav-quote { margin-inline: 2px; padding-inline: 10px; }
}

@media (max-width: 900px) {
  #sectores .info-grid { grid-template-columns: 1fr; max-width: 650px; gap: 18px; }
  #sectores .info-card { padding: 26px; }
  .demo-gallery .portfolio-grid { gap: 14px; }
  .demo-gallery .portfolio-info { padding: 16px; }
}

@media (max-width: 768px) {
  body { padding-bottom: calc(84px + env(safe-area-inset-bottom, 0px)); }
  main > section[id] { scroll-margin-top: 90px; }
  header nav { top: 100%; }
  header nav ul { align-items: stretch; gap: 2px; }
  header nav li a { display: flex; justify-content: flex-start; padding: 12px 14px; font-size: 15px; }
  header nav .nav-quote { margin: 4px 0; padding-inline: 14px; }
  .section-kicker,
  .ai-intro-wrap .section-kicker { margin-bottom: 12px; font-size: 11px; }
  #problemas,
  #sectores,
  #portafolio,
  #proceso,
  #faq,
  #contacto { padding-inline: 18px; }
  #sectores .info-card { padding: 24px 20px; }
  .demo-gallery { margin-top: 32px; padding-top: 26px; }
  .demo-gallery .portfolio-grid { grid-template-columns: 1fr; gap: 20px; }
  .demo-gallery .portfolio-info { padding: 20px; }
  .demo-gallery .portfolio-preview { height: 180px; }
  .section-action .whatsapp-btn { padding-inline: 18px; font-size: 15px; }
  #cotizador { padding-inline: 12px; }
  #cotizador .ai-container { padding: 24px 16px; border-radius: 16px; }
  #cotizador .ai-intro-wrap { margin-bottom: 20px; }
  #cotizador .ai-intro-wrap > p:not(.section-kicker) { font-size: 15px; }
  #cotizador .ai-form { gap: 16px; }
  #cotizador .diagnostic-group {
    padding: 14px 0 4px;
    gap: 14px;
    border: 0;
    border-top: 1px solid #dce5ee;
    border-radius: 0;
    background: transparent;
  }
  #cotizador .diagnostic-group legend { padding: 0 8px 0 0; }
  #cotizador .form-group { gap: 6px; }
  #cotizador .form-group input,
  #cotizador .form-group select,
  #cotizador .form-group textarea { padding-inline: 12px; }
  #cotizador .diagnostic-optional { padding: 12px; background: #f4fafc; }
  #cotizador .field-help { font-size: 13px; }
  #cotizador .consent-group { font-size: 13px; }
  #cotizador #generate-btn { min-height: 50px; padding-inline: 14px; }
  .floating-quote-cta {
    left: calc(14px + env(safe-area-inset-left, 0px));
    right: auto;
    bottom: calc(14px + env(safe-area-inset-bottom, 0px));
    max-width: calc(100vw - 96px - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px));
    min-height: 48px;
    padding: 10px 14px;
    gap: 8px;
    font-size: 13px;
    line-height: 1.25;
  }
  .floating-whatsapp {
    right: calc(14px + env(safe-area-inset-right, 0px));
    bottom: calc(14px + env(safe-area-inset-bottom, 0px));
    width: 52px;
    height: 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  header nav li a { transition: none; }
}