/* ==========================================================================
   03-GLASSMORPHISM.CSS — MULTI-TIER FROSTED GLASS ENGINE
   Lead Systems Architect Specification — Zero Magic Numbers.
   ========================================================================== */

/* Nivel 1: Superficie Base Translúcida (Secciones y Paneles de Fondo) */
.glass-level-1 {
  background: var(--bg-surface-glass);
  backdrop-filter: blur(var(--glass-blur-sm));
  -webkit-backdrop-filter: blur(var(--glass-blur-sm));
  border: 1px solid var(--glass-border);
}

/* Nivel 2: Tarjetas Interactivas y Barras Flotantes */
.glass-level-2,
.glass-card {
  position: relative;
  background: var(--bg-surface-glass);
  backdrop-filter: blur(var(--glass-blur-md));
  -webkit-backdrop-filter: blur(var(--glass-blur-md));
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--duration-normal) var(--ease-expo),
              transform var(--duration-normal) var(--ease-expo),
              box-shadow var(--duration-normal) var(--ease-expo);
}

.glass-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 48px -12px rgba(0, 0, 0, 0.4);
}

/* Nivel 3: Modales, Drawers y Menús Superiores Flotantes */
.glass-level-3,
.glass-modal {
  background: var(--bg-overlay);
  backdrop-filter: blur(var(--glass-blur-lg));
  -webkit-backdrop-filter: blur(var(--glass-blur-lg));
  border: 1px solid var(--glass-border-hover);
  box-shadow: 0 24px 64px -12px rgba(0, 0, 0, 0.6);
  border-radius: var(--radius-xl);
}

/* Cápsula de Ícono Minimalista de Lujo */
.icon-capsule {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--icon-capsule-bg);
  border: 1px solid var(--icon-capsule-border);
  color: var(--icon-stroke);
  transition: all var(--duration-normal) var(--ease-expo);
}

.glass-card:hover .icon-capsule,
.icon-capsule:hover {
  color: var(--icon-stroke-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-2px) scale(1.05);
}

.icon-capsule.advisory {
  color: var(--advisory-cyan);
}
.icon-capsule.mitabela {
  color: var(--mitabela-rose);
}

/* Efecto Spotlight: Resplandor Guiado por Cursor (Inspiración Mercury.com) */
.spotlight-card {
  position: relative;
  isolation: isolate;
}

.spotlight-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: radial-gradient(
    400px circle at var(--mouse-x, 0) var(--mouse-y, 0),
    var(--glass-border-active),
    transparent 60%
  );
  -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;
  transition: opacity var(--duration-normal) var(--ease-expo);
  z-index: 2;
}

.spotlight-card:hover::before {
  opacity: 1;
}

.spotlight-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    500px circle at var(--mouse-x, 0) var(--mouse-y, 0),
    rgba(255, 255, 255, 0.03),
    transparent 50%
  );
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-expo);
  z-index: 1;
}

.spotlight-card:hover::after {
  opacity: 1;
}