/* ============================================================
   Tier Badge — contextual plan indicator in site header.
   Gemstone palette per tier (see @evident/design-tokens).
   Locked tier order: free → starter → core → complete → team →
   department → enterprise.
   ============================================================ */

.tier-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.75rem;
  border-radius: 9999px;
  border: 1px solid currentColor;
  background: color-mix(in oklch, currentColor 8%, transparent);
  color: var(--tier-color, var(--color-on-surface-muted));
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  line-height: 1;
  transition:
    background 160ms ease,
    transform 160ms ease;
}

.tier-badge:hover,
.tier-badge:focus-visible {
  background: color-mix(in oklch, currentColor 14%, transparent);
  transform: translateY(-1px);
}

.tier-badge:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
}

.tier-badge__dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}

.tier-badge__label {
  text-transform: capitalize;
}

/* ── Tier palette (gemstone tokens) ──────────────────────── */

.tier-badge[data-tier="free"] {
  --tier-color: var(--color-slate-400, #94a3b8);
}
.tier-badge[data-tier="starter"] {
  --tier-color: var(--color-topaz, #f7b32b);
}
.tier-badge[data-tier="core"] {
  --tier-color: var(--color-sapphire, #5a8fff);
}
.tier-badge[data-tier="complete"] {
  --tier-color: var(--color-emerald, #50c878);
}
.tier-badge[data-tier="team"] {
  --tier-color: var(--color-amethyst, #9b6bdf);
}
.tier-badge[data-tier="department"] {
  --tier-color: var(--color-ruby, #e03c5f);
}
.tier-badge[data-tier="enterprise"] {
  --tier-color: var(--color-platinum, #d9d9d9);
}

/* ── Reduced motion ──────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .tier-badge {
    transition: none;
  }
  .tier-badge:hover,
  .tier-badge:focus-visible {
    transform: none;
  }
  .tier-badge__dot {
    box-shadow: none;
  }
}

/* ============================================================
   Upgrade Toast — 402 upgrade_required response handler.
   Anchored bottom-right; auto-dismisses after 8s unless hovered.
   ============================================================ */

.upgrade-toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  max-width: 24rem;
  padding: 1rem 1.25rem;
  border-radius: 0.75rem;
  background: var(--color-surface-elevated, #1a1a1a);
  color: var(--color-on-surface, #fff);
  border: 1px solid var(--tier-color, var(--color-sapphire, #5a8fff));
  box-shadow:
    0 10px 40px rgba(0, 0, 0, 0.4),
    0 0 0 1px color-mix(in oklch, var(--tier-color, #5a8fff) 20%, transparent);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 9999;
  animation: upgrade-toast-in 220ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.upgrade-toast[hidden] {
  display: none;
}

.upgrade-toast__heading {
  font-size: 0.9375rem;
  font-weight: 600;
  margin: 0;
  color: var(--tier-color, var(--color-sapphire));
}

.upgrade-toast__body {
  font-size: 0.875rem;
  color: var(--color-on-surface-muted, rgba(255, 255, 255, 0.72));
  margin: 0;
  line-height: 1.5;
}

.upgrade-toast__actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.upgrade-toast__cta {
  padding: 0.5rem 0.875rem;
  border-radius: 0.375rem;
  background: var(--tier-color, var(--color-sapphire, #5a8fff));
  color: #0a0a0a;
  font-weight: 600;
  font-size: 0.8125rem;
  text-decoration: none;
  transition: filter 160ms ease;
}

.upgrade-toast__cta:hover,
.upgrade-toast__cta:focus-visible {
  filter: brightness(1.1);
}

.upgrade-toast__dismiss {
  background: transparent;
  border: none;
  color: var(--color-on-surface-muted);
  font-size: 0.8125rem;
  padding: 0.5rem 0.25rem;
  cursor: pointer;
}

.upgrade-toast__dismiss:hover,
.upgrade-toast__dismiss:focus-visible {
  color: var(--color-on-surface);
}

@keyframes upgrade-toast-in {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .upgrade-toast {
    animation: none;
  }
}

@media (max-width: 640px) {
  .upgrade-toast {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    max-width: none;
  }
}