:root {
  --color-primary: #2E4580;
  --color-secondary: #19B3E6;
  --color-accent: #F6A623;
  --color-dark: #001233;
  --color-light: #E6F9FF;
  --color-gray: #F8F9FA;
  --color-white: #FFFFFF;
  --color-black: #000000;
  --grad-hero: linear-gradient(0deg, var(--color-white) 0%, var(--color-secondary) 50%, var(--color-primary) 100%);
  --grad-about: linear-gradient(0deg, var(--color-white) 0%, var(--color-white) 100%);
  --grad-solutions: linear-gradient(0deg, var(--color-primary) 0%, var(--color-secondary) 50%, var(--color-white) 100%);
  --grad-porque: linear-gradient(0deg, var(--color-white) 0%, var(--color-secondary) 50%, var(--color-primary) 100%);
}

/* Base */
body {
  margin: 0;
  padding: 0;
  font-family: 'Montserrat', sans-serif;
  background-color: var(--color-gray);
  overflow-x: hidden;
  padding-top: 94px;
}

@media(max-width:991.98px) {
  body {
    padding-top: 86px;
  }
}

.hero-bg {
  background: var(--grad-hero);
}

.about-bg {
  background: var(--grad-about);
}

.solution-bg {
  background: var(--grad-solutions);
}

.porque-bg {
  background: var(--grad-porque);
}

/* Navbar fija de artículos */
.nav-articles {
  background: #fff;
  border-bottom: 1px solid rgba(0, 0, 0, .06);
  box-shadow: 0 2px 10px rgba(0, 0, 0, .04);
  padding: 8px 0;
}

.nav-articles .nav-link {
  color: var(--color-dark);
  font-weight: 500;
  padding: .5rem .9rem !important;
}

.nav-articles .nav-link:hover,
.nav-articles .nav-link.active {
  color: var(--color-accent);
}

/* Footer */
/* .footer-section{background:#0f172a;color:#cbd5e1;padding:24px 0;margin-top:2rem;}
.footer-section .footer-social{display:flex;gap:12px;justify-content:center;align-items:center;}
.footer-section .footer-social a{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:#1e293b;color:#e2e8f0;text-decoration:none;transition:transform .2s ease,background-color .2s ease;}
.footer-section .footer-social a:hover{transform:translateY(-2px);background:#334155;} */

/* Footer */
.footer-section {
  background: #0f172a;
  color: #cbd5e1;
  padding: 24px 0;
  margin-top: 2rem;
}

.footer-section .footer-social {
  display: flex;
  gap: 12px;
  justify-content: center;
  align-items: center;
}

@media (min-width: 768px) {
  .footer-section .footer-social {
    justify-content: flex-end;
  }
}

.footer-section .footer-social a {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #1e293b;
  color: #e2e8f0;
  text-decoration: none;
  transition: transform .2s ease, background-color .2s ease, color .2s ease;
}

.footer-section .footer-social a:hover {
  transform: translateY(-2px);
  background: #334155;
  color: #ffffff;
}

/* Enlaces legales del footer */
.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.9rem;
  margin-top: 4px;
}

.footer-links a {
  color: #e2e8f0;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.footer-links .dot-separator {
  color: #64748b;
  font-size: 0.8rem;
}

/* Sticky Footer Fix */
html,
body {
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
}

footer {
  flex-shrink: 0;
}

/* Botón "Ir arriba" */
.scroll-top-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  outline: none;
  background: var(--color-secondary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 20px rgba(0, 0, 0, .25);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .2s ease, visibility .2s ease, transform .2s ease, background-color .2s ease;
  z-index: 999;
}

.scroll-top-btn:hover {
  background: var(--color-primary);
}

.scroll-top-btn.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top-btn i {
  font-size: 1rem;
}