/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-family: var(--font-body);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--accent-fg);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--accent) 15%, transparent);
  position: relative;
  z-index: 1;
}

.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: 0 6px 16px color-mix(in srgb, var(--accent) 20%, transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: -1;
}

.btn-primary:hover {
  background-color: var(--accent-secondary);
  color: var(--accent-fg);
  transform: translateY(-2px);
  text-decoration: none;
}

.btn-primary:hover::after {
  opacity: 1;
}

.btn-secondary {
  background-color: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-secondary:hover {
  background-color: color-mix(in srgb, var(--accent) 10%, transparent);
  color: var(--accent-secondary);
  text-decoration: none;
}

/* Glassmorphic Cards */
.card {
  background-color: color-mix(in srgb, var(--bg-surface) 90%, transparent);
  /* Scroll Performance Fix: Removed backdrop-filter from stationary cards 
     to prevent GPU fallback when scrolling over complex gradients. */
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  box-shadow: 0 4px 16px var(--shadow);
  transition: transform var(--transition-base);
  position: relative;
  z-index: 1;
}

.card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: 0 12px 24px var(--shadow-lg);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: -1;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-4px);
}

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

.card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: var(--space-2);
  color: var(--text-primary);
}

.card-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--space-4);
}

/* Badges */
.badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: color-mix(in srgb, var(--accent) 15%, transparent);
  color: var(--accent);
  margin-bottom: var(--space-3);
}

/* Back Link (for guides / legal) */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: var(--space-8);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.back-link:hover {
  color: var(--accent);
  text-decoration: none;
  transform: translateX(-4px);
}

/* Highlight boxes / Callouts */
.callout {
  background-color: var(--bg-surface);
  border-left: 4px solid var(--accent);
  padding: var(--space-4) var(--space-5);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: var(--space-6);
}

.callout-title {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-primary);
  font-size: 1.25rem;
  margin-bottom: var(--space-1);
}

.callout-content {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.callout.warning {
  border-left-color: var(--accent-secondary);
}

.callout.warning .callout-title {
  color: var(--accent-secondary);
}