/* =====================================================================
   AUTÉNTICO CREATIVO — LIQUID GLASS
   NAV flotante inferior · superficies de cristal · footer común
   ===================================================================== */

/* =====================================================================
   1. SUPERFICIE DE CRISTAL REUTILIZABLE
   Úsala en cualquier tarjeta/panel:  class="glass"
   ===================================================================== */
.glass {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  backdrop-filter: blur(var(--glass-blur)) saturate(160%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
  box-shadow: var(--glass-shadow);
  overflow: hidden;
  isolation: isolate;
}

/* Reflejo interior superior — el "canto" del cristal */
.glass::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(160deg,
              var(--glass-hi) 0%,
              rgba(255,255,255,0.06) 26%,
              rgba(255,255,255,0) 52%,
              rgba(120,190,255,0.16) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
  z-index: 2;
}

/* Brillo líquido interno que se desplaza dentro del cristal */
.glass::after {
  content: '';
  position: absolute;
  top: -60%;
  left: -30%;
  width: 70%;
  height: 220%;
  background: radial-gradient(closest-side,
              rgba(150, 210, 255, 0.13) 0%,
              rgba(150, 210, 255, 0) 100%);
  filter: blur(18px);
  pointer-events: none;
  z-index: 1;
  animation: glassDrift 18s var(--ease) infinite alternate;
}

@keyframes glassDrift {
  0%   { transform: translate(0, 0)      rotate(0deg);   opacity: 0.75; }
  50%  { transform: translate(60%, 8%)   rotate(8deg);   opacity: 1;    }
  100% { transform: translate(130%, -6%) rotate(-6deg);  opacity: 0.7;  }
}

.glass > * { position: relative; z-index: 3; }

/* Variante interactiva (tarjetas clicables) */
.glass-hover { transition: transform var(--t), border-color var(--t), box-shadow var(--t); }
.glass-hover:hover {
  transform: translateY(-4px);
  border-color: var(--glass-border-strong);
  box-shadow: 0 26px 60px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.05);
}

/* =====================================================================
   2. NAV FLOTANTE — cápsula Liquid Glass
   ===================================================================== */
.nav-dock {
  position: fixed;
  left: 50%;
  bottom: 42px;
  transform: translateX(-50%) translateY(160%);
  z-index: var(--z-nav);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.8s var(--ease-out), opacity 0.6s var(--ease);
  will-change: transform;
}

/* Halo de marca detrás de la cápsula: teal a la izquierda, carmín a la
   derecha. Es lo que hace que el NAV "encienda" al aparecer. */
.nav-dock::before {
  content: '';
  position: absolute;
  inset: -18px -26px -22px;
  border-radius: var(--r-full);
  background: linear-gradient(100deg,
              rgba(41, 156, 184, 0.30) 0%,
              rgba(79, 201, 230, 0.14) 34%,
              rgba(140, 80, 160, 0.10) 60%,
              rgba(211, 20, 81, 0.26) 100%);
  filter: blur(30px);
  opacity: 0;
  z-index: -1;
  pointer-events: none;
  transition: opacity 0.9s var(--ease);
}
.nav-dock.visible::before {
  opacity: 0.38;
  animation: navHalo 12s var(--ease) infinite alternate;
}
.nav-dock:hover::before { opacity: 0.58; }

@keyframes navHalo {
  0%   { filter: blur(30px) saturate(1);    transform: scale(1);    }
  50%  { filter: blur(34px) saturate(1.12); transform: scale(1.03); }
  100% { filter: blur(28px) saturate(1.02); transform: scale(0.99); }
}
.nav-dock.visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.nav-glass {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 20px;
  border-radius: var(--r-full);
  background: linear-gradient(180deg,
              rgba(24, 31, 54, 0.60) 0%,
              rgba(11, 14, 28, 0.68) 100%);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(26px) saturate(170%);
  -webkit-backdrop-filter: blur(26px) saturate(180%);
  box-shadow:
    0 26px 64px rgba(0, 0, 0, 0.62),
    0 0 26px rgba(41, 156, 184, 0.12),
    0 0 44px rgba(211, 20, 81, 0.07),
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 -14px 30px rgba(41, 156, 184, 0.05);
  overflow: hidden;
  isolation: isolate;
}

/* Canto de cristal: más luminoso en laterales y parte superior */
.nav-glass::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg,
              rgba(79, 201, 230, 0.42) 0%,
              rgba(255, 255, 255, 0.34) 22%,
              rgba(255, 255, 255, 0.05) 50%,
              rgba(255, 77, 132, 0.16) 78%,
              rgba(211, 20, 81, 0.30) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
  z-index: 4;
}

/* Reflejos irregulares que "flotan" dentro del cristal */
.nav-glass::after {
  content: '';
  position: absolute;
  top: -140%;
  left: -20%;
  width: 45%;
  height: 380%;
  background: radial-gradient(closest-side,
              rgba(180, 225, 255, 0.20) 0%,
              rgba(180, 225, 255, 0) 100%);
  filter: blur(14px);
  pointer-events: none;
  z-index: 1;
  animation: navShimmer 14s var(--ease) infinite alternate;
}

@keyframes navShimmer {
  0%   { transform: translateX(0)    rotate(-8deg); opacity: 0.6; }
  100% { transform: translateX(260%) rotate(8deg);  opacity: 1;   }
}

/* La "masa de cristal líquido" que ilumina la opción activa.
   Su posición y anchura las calcula js/nav.js */
.nav-liquid {
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: 0;
  width: 0;
  border-radius: var(--r-full);
  background:
    radial-gradient(60% 90% at 50% 22%, rgba(190, 240, 255, 0.32) 0%, rgba(190, 240, 255, 0) 72%),
    linear-gradient(180deg, rgba(255,255,255,0.16) 0%, rgba(41, 156, 184, 0.16) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.26),
    inset 0 -8px 18px rgba(41, 156, 184, 0.16),
    0 0 16px rgba(79, 201, 230, 0.16);
  filter: blur(0.3px);
  opacity: 0;
  z-index: 2;
  pointer-events: none;
  transition:
    left  0.55s cubic-bezier(0.22, 1.4, 0.36, 1),
    width 0.55s cubic-bezier(0.22, 1.4, 0.36, 1),
    opacity 0.35s var(--ease);
}
.nav-liquid.on { opacity: 1; }

/* ── Opciones del NAV ── */
.nav-item {
  position: relative;
  z-index: 3;
  flex: 1 1 0;
  min-width: 90px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 11px 16px 10px;
  border-radius: var(--r-full);
  color: rgba(255, 255, 255, 0.66);
  transition: color var(--t), transform var(--t);
}
.nav-item:hover { color: #fff; transform: translateY(-1px); }
.nav-item:active { transform: scale(0.95); }

.nav-item .icon {
  width: 22px;
  height: 22px;
  stroke-width: 1.5;
  transition: filter var(--t), opacity var(--t);
  opacity: 0.86;
}

.nav-item .nav-label {
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  line-height: 1;
  white-space: nowrap;
}

/* Estado activo: sin botón sólido — solo cristal más claro y luminoso */
.nav-item.is-active { color: #ffffff; }
.nav-item.is-active .icon {
  opacity: 1;
  filter: drop-shadow(0 0 5px rgba(79, 201, 230, 0.45));
}
.nav-item.is-active .nav-label { font-weight: 600; }

@media (max-width: 480px) {
  .nav-dock { bottom: 24px; width: calc(100% - 32px); }
  .nav-dock::before { inset: -14px -16px -16px; }
  .nav-glass { width: 100%; padding: 11px 10px; gap: 2px; }
  .nav-item { min-width: 0; padding: 9px 6px 8px; }
  .nav-item .nav-label { font-size: 0.56rem; letter-spacing: 0.05em; }
}

/* =====================================================================
   3. FOOTER COMÚN (idéntico en todas las páginas — lo inyecta js/layout.js)
   ===================================================================== */
.site-footer {
  position: relative;
  z-index: var(--z-content);
  padding: var(--gap-lg) 0 150px;
  margin-top: var(--gap-xl);
  border-top: 1px solid var(--glass-border);
  background: linear-gradient(180deg, rgba(5,5,10,0) 0%, rgba(3,3,7,0.72) 55%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  align-items: center;
  text-align: center;
}

.footer-logo img { height: 34px; width: auto; opacity: 0.92; }

.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: 420px;
  line-height: 1.7;
}

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

.social-link {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: var(--r-full);
  background: var(--glass-bg-soft);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: rgba(255,255,255,0.72);
  transition: transform var(--t), color var(--t), border-color var(--t), box-shadow var(--t);
}
.social-link svg { width: 18px; height: 18px; fill: currentColor; }
.social-link:hover {
  transform: translateY(-3px);
  color: #fff;
  border-color: var(--glass-border-strong);
  box-shadow: 0 10px 26px rgba(0,0,0,0.5);
}
.social-link-ig:hover { color: var(--red-light); box-shadow: 0 10px 26px var(--red-glow); }
.social-link-yt:hover { color: var(--red-light); box-shadow: 0 10px 26px var(--red-glow); }
.social-link-tt:hover { color: var(--teal-light); box-shadow: 0 10px 26px var(--teal-glow); }
.social-link-li:hover { color: var(--teal-light); box-shadow: 0 10px 26px var(--teal-glow); }

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: center;
  align-items: center;
  font-size: 0.85rem;
}
.footer-contact a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  transition: color var(--t);
}
.footer-contact a:hover { color: var(--teal-light); }

.footer-author {
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.03em;
}
.footer-author a {
  color: var(--text-muted);
  border-bottom: 1px solid var(--glass-border);
  transition: color var(--t), border-color var(--t);
}
.footer-author a:hover { color: var(--teal-light); border-color: var(--teal-light); }

.footer-bottom {
  width: 100%;
  padding-top: var(--gap-sm);
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}