/* Base glass card */
.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--card-radius);
  box-shadow: var(--glass-shadow), var(--glass-inner-glow);
  transition: background var(--transition-base),
              border-color var(--transition-base),
              box-shadow var(--transition-base),
              transform var(--transition-base);
}

.glass:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  box-shadow: var(--glass-shadow-hover), var(--glass-inner-glow);
}

/* Interactive glass card (lifts on hover with subtle blue glow) */
.glass--interactive:hover {
  transform: translateY(-4px);
  border-color: rgba(20, 157, 221, 0.25);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4),
              inset 0 1px 0 rgba(255, 255, 255, 0.1),
              0 0 20px rgba(20, 157, 221, 0.08);
}

/* Stronger glass for navigation */
.glass--nav {
  background: rgba(4, 11, 20, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  border-radius: 0;
  box-shadow: none;
}

/* Subtle glass for pills/tags */
.glass--pill {
  display: inline-block;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--pill-radius);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  padding: 0.35rem 1rem;
  font-size: var(--fs-small);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.glass--pill:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--text-primary);
}

/* Glass card with colored left accent border (uses ::before to preserve border-radius) */
.glass--accent-left {
  position: relative;
  overflow: hidden;
}

.glass--accent-left::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(to bottom, var(--gradient-1), var(--gradient-2));
  z-index: 1;
}

/* Fallback for browsers without backdrop-filter */
@supports not (backdrop-filter: blur(1px)) {
  .glass {
    background: rgba(4, 11, 20, 0.95);
  }
  .glass--nav {
    background: rgba(4, 11, 20, 0.97);
  }
}