/* ==========================================================================
   AETHERCORE LIQUID GLASS OPTICAL ENGINE (CSS SPATIAL GLASS)
   Física óptica de cristal líquido: Refracción, dispersión cromática,
   biseles especulares multicapa y reflexión Fresnel reactiva al cursor.
   ========================================================================== */

:root {
  --glass-tint: rgba(255, 255, 255, 0.04);
  --glass-tint-hover: rgba(255, 255, 255, 0.07);
  --glass-border-light: rgba(255, 255, 255, 0.28);
  --glass-border-shadow: rgba(0, 0, 0, 0.45);
  --prism-cyan: rgba(56, 189, 248, 0.65);
  --prism-terracotta: rgba(212, 101, 71, 0.7);
  --prism-emerald: rgba(52, 211, 153, 0.6);
  --mouse-x: 50%;
  --mouse-y: 50%;
}

/* Base Liquid Glass Layer */
.liquid-glass-card {
  position: relative;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.075) 0%,
    rgba(255, 255, 255, 0.02) 40%,
    rgba(10, 10, 15, 0.35) 100%
  );
  backdrop-filter: blur(40px) saturate(220%) brightness(1.08);
  -webkit-backdrop-filter: blur(40px) saturate(220%) brightness(1.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-top: 1px solid rgba(255, 255, 255, 0.38);
  border-left: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 
    0 25px 60px -15px rgba(0, 0, 0, 0.85),
    0 10px 25px -10px rgba(0, 0, 0, 0.5),
    inset 0 1.5px 1px 0 rgba(255, 255, 255, 0.35),
    inset 0 -1.5px 1px 0 rgba(0, 0, 0, 0.4),
    inset 1px 0 1px 0 rgba(255, 255, 255, 0.15);
  border-radius: 1.5rem;
  overflow: hidden;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.4s ease;
}

.liquid-glass-card:hover {
  border-color: rgba(255, 255, 255, 0.24);
  border-top-color: rgba(255, 255, 255, 0.6);
  box-shadow: 
    0 35px 80px -15px rgba(0, 0, 0, 0.95),
    0 0 35px -5px rgba(56, 189, 248, 0.15),
    inset 0 1.5px 2px 0 rgba(255, 255, 255, 0.5),
    inset 0 -1.5px 1px 0 rgba(0, 0, 0, 0.5);
}

/* Reflejo especular Fresnel reactivo en la superficie del cristal */
.liquid-glass-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    650px circle at var(--x, 50%) var(--y, 50%),
    rgba(255, 255, 255, 0.12),
    rgba(56, 189, 248, 0.06) 25%,
    rgba(212, 101, 71, 0.04) 50%,
    transparent 75%
  );
  pointer-events: none;
  opacity: 0.6;
  mix-blend-mode: overlay;
  transition: opacity 0.3s ease;
  z-index: 1;
}

.liquid-glass-card:hover::before {
  opacity: 1;
}

/* Borde de dispersión prismática (efecto arcoíris sutil en los extremos) */
.liquid-glass-card::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    var(--card-angle, 135deg),
    rgba(255, 255, 255, 0.45) 0%,
    rgba(56, 189, 248, 0.3) 30%,
    rgba(212, 101, 71, 0.25) 70%,
    rgba(255, 255, 255, 0.1) 100%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.75;
  transition: opacity 0.4s ease;
  z-index: 2;
}

.liquid-glass-card:hover::after {
  opacity: 1;
}

/* Floating Liquid Dock Navigation */
.liquid-glass-dock {
  background: linear-gradient(
    180deg,
    rgba(18, 17, 24, 0.75) 0%,
    rgba(10, 9, 14, 0.88) 100%
  );
  backdrop-filter: blur(40px) saturate(240%);
  -webkit-backdrop-filter: blur(40px) saturate(240%);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-top: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: 
    0 20px 50px -10px rgba(0, 0, 0, 0.9),
    0 0 25px -5px rgba(212, 101, 71, 0.1),
    inset 0 1px 1px 0 rgba(255, 255, 255, 0.3);
}

/* Botones de cristal translúcido activo */
.liquid-glass-btn {
  position: relative;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.08) 0%,
    rgba(255, 255, 255, 0.02) 100%
  );
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-top: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: 
    0 10px 25px -5px rgba(0, 0, 0, 0.6),
    inset 0 1px 1px rgba(255, 255, 255, 0.25);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.liquid-glass-btn:hover {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.14) 0%,
    rgba(255, 255, 255, 0.05) 100%
  );
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  box-shadow: 
    0 15px 35px -5px rgba(0, 0, 0, 0.8),
    0 0 20px -3px rgba(56, 189, 248, 0.25),
    inset 0 1px 1px rgba(255, 255, 255, 0.45);
}

/* Insignias de cristal líquido con pulso bio-lumínico */
.liquid-badge {
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-top: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.15);
}

/* Contenedor de imagen con efecto de lente de cristal líquido */
.glass-image-lens {
  position: relative;
  overflow: hidden;
  border-radius: 1.25rem;
}

.glass-image-lens img {
  transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1), filter 0.5s ease;
  will-change: transform;
}

.glass-image-lens:hover img {
  transform: scale(1.06);
  filter: brightness(1.08) contrast(1.05);
}

.glass-image-lens::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(3, 3, 5, 0.05) 0%,
    rgba(3, 3, 5, 0.4) 60%,
    rgba(3, 3, 5, 0.85) 100%
  );
  pointer-events: none;
}

/* Resplandor óptico caústico de fondo */
.caustic-glow {
  position: fixed;
  pointer-events: none;
  filter: blur(90px);
  opacity: 0.35;
  border-radius: 50%;
  z-index: -5;
  mix-blend-mode: screen;
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.8s ease;
}

.caustic-glow-1 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(212, 101, 71, 0.55) 0%, rgba(212, 101, 71, 0) 70%);
  top: -10%;
  right: -5%;
}

.caustic-glow-2 {
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.45) 0%, rgba(56, 189, 248, 0) 70%);
  bottom: -15%;
  left: -10%;
}