/* === Base Glass Card === */
.glass-card {
  background: var(--bg-glass);
  backdrop-filter: blur(var(--blur-glass));
  -webkit-backdrop-filter: blur(var(--blur-glass));
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  position: relative;
  overflow: hidden;
  transition:
    background var(--transition-normal),
    border-color var(--transition-normal),
    box-shadow var(--transition-normal),
    transform var(--transition-fast);
}

/* Top edge glow */
.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(167, 139, 250, 0.4), transparent);
  z-index: 1;
}

.glass-card:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* === Glass Inset === */
.glass-inset {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
}

/* === Glass Button === */
.glass-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  background: rgba(124, 58, 237, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(124, 58, 237, 0.25);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  cursor: pointer;
  transition: all var(--transition-normal);
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}

.glass-btn:hover {
  background: rgba(124, 58, 237, 0.25);
  border-color: rgba(167, 139, 250, 0.5);
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.3);
}

.glass-btn:active {
  transform: scale(0.97);
}

/* Primary Button */
.glass-btn--primary {
  background: linear-gradient(135deg, var(--purple-600), var(--purple-800));
  border-color: var(--purple-500);
}

.glass-btn--primary:hover {
  box-shadow: 0 0 30px rgba(124, 58, 237, 0.5);
  transform: translateY(-1px);
}

/* Small Button */
.glass-btn--sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  border-radius: 6px;
}

/* Danger */
.glass-btn--danger {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.3);
  color: var(--error);
}

.glass-btn--danger:hover {
  background: rgba(239, 68, 68, 0.25);
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.2);
}

/* === Glass Input === */
.glass-input {
  width: 100%;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  color: var(--text-primary);
  font-size: var(--text-sm);
  transition: all var(--transition-normal);
}

.glass-input::placeholder {
  color: var(--text-dim);
}

.glass-input:focus {
  border-color: var(--purple-500);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}

/* Glass Select */
.glass-select {
  width: 100%;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  color: var(--text-primary);
  font-size: var(--text-sm);
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23A78BFA' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  transition: all var(--transition-normal);
}

.glass-select:focus {
  border-color: var(--purple-500);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}

.glass-select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

/* === Backdrop filter fallback === */
@supports not (backdrop-filter: blur(1px)) {
  .glass-card {
    background: rgba(15, 15, 25, 0.95);
  }
}

/* === Responsive === */
@media (max-width: 640px) {
  .glass-card {
    padding: var(--space-3);
  }
  .glass-card:hover {
    transform: none; /* No hover lift on touch devices */
  }
  .glass-btn {
    padding: var(--space-2) var(--space-4);
  }
  .glass-input {
    padding: var(--space-2) var(--space-3);
  }
  .glass-select {
    padding: var(--space-2) var(--space-3);
    padding-right: 32px;
  }
}