/* ===========================
   FOOTER
=========================== */
footer {
  background: var(--carbon);
  padding: 56px 0 32px;
}
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 0 40px;
}
@media (max-width: 640px) { .footer-inner { padding: 0 20px; } }
.footer-top {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 40px; flex-wrap: wrap;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo img { height: 32px; width: auto; margin-bottom: 12px; }
.footer-tagline { font-size: 13px; color: rgba(255,255,255,0.4); max-width: 220px; line-height: 1.5; }
.footer-nav ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-nav a { font-size: 14px; color: rgba(255,255,255,0.55); transition: color 0.2s; }
.footer-nav a:hover { color: #fff; }
.footer-bottom {
  padding-top: 28px;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}
.footer-copy { font-size: 13px; color: rgba(255,255,255,0.3); }

/* ===========================
   WHATSAPP FLOATING BUTTON
=========================== */
#wa-btn {
  position: fixed;
  right: max(24px, env(safe-area-inset-right, 0px));
  bottom: max(24px, env(safe-area-inset-bottom, 0px));
  z-index: 900;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: radial-gradient(circle at 38% 35%, #4fffaa 0%, #25D366 45%, #128C4A 100%);
  display: flex; align-items: center; justify-content: center;
  box-shadow:
    0 0 0 2px rgba(37,211,102,0.22),
    0 0 14px 4px rgba(37,211,102,0.58),
    0 0 28px 9px rgba(37,211,102,0.26),
    0 6px 20px rgba(0,0,0,0.35);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s, opacity 0.4s;
  cursor: pointer;
  will-change: transform;
}
/* Reflejo interior que simula una fuente de luz sobre el botón */
#wa-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle at 38% 32%, rgba(255,255,255,0.42) 0%, transparent 60%);
  pointer-events: none;
}
#wa-btn:hover {
  transform: scale(1.11);
  box-shadow:
    0 0 0 3px rgba(37,211,102,0.30),
    0 0 18px 7px rgba(37,211,102,0.70),
    0 0 36px 12px rgba(37,211,102,0.35),
    0 8px 28px rgba(0,0,0,0.4);
}
#wa-btn.hidden { opacity: 0; pointer-events: none; transform: scale(0.85); }

@keyframes wa-pulse {
  0%, 100% {
    box-shadow:
      0 0 0 3px  rgba(37,211,102,0.25),
      0 0 18px 6px  rgba(37,211,102,0.70),
      0 0 40px 14px rgba(37,211,102,0.40),
      0 0 70px 22px rgba(37,211,102,0.18),
      0 6px 24px    rgba(0,0,0,0.35);
  }
  50% {
    box-shadow:
      0 0 0 10px rgba(37,211,102,0.00),
      0 0 28px 10px rgba(37,211,102,0.85),
      0 0 60px 22px rgba(37,211,102,0.50),
      0 0 100px 36px rgba(37,211,102,0.22),
      0 6px 24px    rgba(0,0,0,0.35);
  }
}
@media (max-width: 640px) {
  #wa-btn {
    width: 56px;
    height: 56px;
    right: max(18px, env(safe-area-inset-right, 0px));
    bottom: max(18px, env(safe-area-inset-bottom, 0px));
  }
}

/* ===========================
   UTILITY
=========================== */
.text-orange { color: var(--orange); }
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }

/* ===========================
   SEO SERVICES SECTION
=========================== */
.seo-services {
  background: linear-gradient(180deg, rgba(13, 15, 24, 0.96) 0%, rgba(8, 10, 16, 1) 100%);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 96px 0;
}
.seo-services-shell {
  max-width: 1120px;
  margin: 0 auto;
}
.seo-services-intro {
  max-width: 920px;
  margin: 22px 0 0;
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.75;
  color: rgba(255,255,255,0.72);
}
.seo-services-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
}
.seo-service-card {
  padding: 24px;
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: 24px;
  background: rgba(255,255,255,0.035);
  box-shadow: 0 18px 50px rgba(0,0,0,0.22);
}
.seo-service-card h3 {
  font-size: 18px;
  line-height: 1.3;
  color: #fff;
  margin-bottom: 10px;
}
.seo-service-card p {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(255,255,255,0.58);
}
@media (max-width: 920px) {
  .seo-services-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .seo-services { padding: 72px 0; }
  .seo-services-grid { grid-template-columns: 1fr; }
  .seo-service-card { padding: 20px; border-radius: 20px; }
}


/* ===========================
   SEO SERVICES — LEGIBILIDAD Y OPTIMIZACIÓN VISUAL
=========================== */
.seo-services {
  background:
    radial-gradient(circle at 12% 18%, rgba(107,31,184,0.18), transparent 32%),
    radial-gradient(circle at 88% 78%, rgba(255,107,26,0.10), transparent 30%),
    linear-gradient(180deg, #11131d 0%, #080a10 100%);
}
.seo-services .section-label {
  color: #ff8a3d;
  text-shadow: 0 0 18px rgba(255,107,26,0.18);
}
.seo-services .section-title {
  max-width: 980px;
  color: #ffffff;
  text-shadow: 0 12px 40px rgba(0,0,0,0.38);
}
.seo-services-intro {
  color: rgba(255,255,255,0.78);
}
.seo-service-card {
  background: rgba(255,255,255,0.045);
  transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}
.seo-service-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255,107,26,0.26);
  background: rgba(255,255,255,0.06);
}
.seo-service-card p {
  color: rgba(255,255,255,0.68);
}
@media (prefers-reduced-motion: reduce) {
  .seo-service-card { transition: none; }
  .seo-service-card:hover { transform: none; }
}
@media (max-width: 640px) {
  .seo-services .section-title {
    font-size: clamp(26px, 9vw, 36px);
  }
}