/* ============================================================
   Bitkoning Master Brand — Feedback
   .bk-toast, .bk-banner, .bk-modal, .bk-sheet, .bk-inline-alert, .bk-loading, .bk-spinner, .bk-retry, .bk-status, .bk-skeleton, .bk-empty.
   Gegenereerd uit het master brand guidelines document (v2.0).
   Productie-bron. De master HTML demonstreert deze classes inline.
   ============================================================ */

.bk-toast {
  display: flex;
  align-items: flex-start;
  gap: var(--bk-space-3);
  padding: var(--bk-space-3) var(--bk-space-4);
  background: var(--bk-ink-1);
  border: 0.5px solid var(--bk-ink-3);
  border-left: 3px solid var(--bk-ink-5);
  border-radius: 8px;
  box-shadow: 0 4px 16px var(--bk-shadow-1);
}

.bk-toast--success { border-left-color: var(--bk-green-base); }

.bk-toast--warning { border-left-color: var(--bk-gold-base); }

.bk-toast--danger  { border-left-color: var(--bk-red-base); }

.bk-toast__icon {
  flex-shrink: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--bk-ink-6);
}

.bk-toast--success .bk-toast__icon { color: var(--bk-green-glow); }

.bk-toast--warning .bk-toast__icon { color: var(--bk-gold-hover); }

.bk-toast--danger  .bk-toast__icon { color: var(--bk-red-glow); }

.bk-toast__body { flex: 1; min-width: 0; }

.bk-toast__title {
  font-family: var(--bk-font-sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--bk-ink-8);
  margin-bottom: 2px;
  line-height: 1.65;
}

.bk-toast__detail {
  font-family: var(--bk-font-sans);
  font-size: 12px;
  color: var(--bk-ink-6);
  line-height: 1.5;
}

.bk-toast__action {
  flex-shrink: 0;
  background: transparent;
  border: 0.5px solid var(--bk-ink-3);
  color: var(--bk-red-glow);
  font-family: var(--bk-font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 4px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 120ms ease;
}

.bk-toast__action:hover { background: var(--bk-ink-2); }

.bk-banner {
  display: flex;
  align-items: flex-start;
  gap: var(--bk-space-3);
  padding: var(--bk-space-4) var(--bk-space-5);
  background: var(--bk-ink-1);
  border: 0.5px solid var(--bk-ink-3);
  border-left: 3px solid var(--bk-ink-5);
  border-radius: 8px;
}

.bk-banner--success { border-left-color: var(--bk-green-base); }

.bk-banner--warning { border-left-color: var(--bk-gold-base); }

.bk-banner--danger  { border-left-color: var(--bk-red-base); }

.bk-banner__icon {
  flex-shrink: 0;
  font-size: 16px;
  line-height: 1.65;
  color: var(--bk-ink-6);
  margin-top: 2px;
}

.bk-banner--success .bk-banner__icon { color: var(--bk-green-glow); }

.bk-banner--warning .bk-banner__icon { color: var(--bk-gold-hover); }

.bk-banner--danger  .bk-banner__icon { color: var(--bk-red-glow); }

.bk-banner__content { flex: 1; min-width: 0; }

.bk-banner__title {
  font-family: var(--bk-font-sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--bk-ink-8);
  margin-bottom: 4px;
  line-height: 1.65;
}

.bk-banner__detail {
  font-family: var(--bk-font-sans);
  font-size: 14px;
  color: var(--bk-ink-6);
  line-height: 1.5;
}

.bk-banner__close {
  flex-shrink: 0;
  background: transparent;
  border: none;
  color: var(--bk-ink-5);
  font-size: 20px;
  line-height: 1;
  padding: 0 4px;
  cursor: pointer;
  transition: color 120ms ease;
}

.bk-banner__close:hover { color: var(--bk-ink-7); }

.bk-inline-alert {
  display: flex;
  align-items: center;
  gap: var(--bk-space-2);
  padding: var(--bk-space-2) var(--bk-space-3);
  font-family: var(--bk-font-sans);
  font-size: 14px;
  line-height: 1.5;
  border-radius: 6px;
  background: var(--bk-ink-1);
}

.bk-inline-alert__icon {
  flex-shrink: 0;
  font-size: 14px;
  line-height: 1.65;
}

.bk-inline-alert--success {
  color: var(--bk-green-glow);
  background: var(--bk-green-tint-2);
  border: 0.5px solid var(--bk-green-edge-1);
}

.bk-inline-alert--warning {
  color: var(--bk-gold-hover);
  background: var(--bk-gold-tint-2);
  border: 0.5px solid var(--bk-gold-edge-1);
}

.bk-inline-alert--danger {
  color: var(--bk-red-glow);
  background: var(--bk-red-tint-2);
  border: 0.5px solid var(--bk-red-edge-1);
}

.bk-modal-container {
  background: var(--bk-shadow-4);
  border-radius: 10px;
  padding: var(--bk-space-5);
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 0.5px dashed var(--bk-ink-3);
}

.bk-modal {
  background: var(--bk-ink-1);
  border: 1px solid var(--bk-ink-3);
  border-radius: 12px;
  padding: var(--bk-space-5);
  width: 100%;
  max-width: 400px;
  box-shadow: 0 16px 48px var(--bk-shadow-3);
}

.bk-modal__header {
  display: flex;
  align-items: center;
  gap: var(--bk-space-3);
  margin-bottom: var(--bk-space-3);
}

.bk-modal__icon {
  flex-shrink: 0;
  font-size: 24px;
  line-height: 1;
  color: var(--bk-ink-7);
}

.bk-modal__icon--danger  { color: var(--bk-red-hover); }

.bk-modal__icon--warning { color: var(--bk-gold-hover); }

.bk-modal__icon--success { color: var(--bk-green-base); }

.bk-modal__title {
  font-family: var(--bk-font-sans);
  font-size: 20px;
  font-weight: 600;
  color: var(--bk-ink-8);
  letter-spacing: -0.01em;
}

.bk-modal__body {
  font-size: 14px;
  color: var(--bk-ink-6);
  line-height: 1.65;
  margin-bottom: var(--bk-space-4);
}

.bk-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--bk-space-2);
}

.bk-sheet-container {
  background: var(--bk-shadow-4);
  border-radius: 10px;
  padding-top: var(--bk-space-5);
  padding-left: var(--bk-space-2);
  padding-right: var(--bk-space-2);
  padding-bottom: 0;
  min-height: 280px;
  display: flex;
  align-items: flex-end;
  border: 0.5px dashed var(--bk-ink-3);
  overflow: hidden;
}

.bk-sheet {
  background: var(--bk-ink-1);
  border-top-left-radius: 14px;
  border-top-right-radius: 14px;
  padding: var(--bk-space-3) var(--bk-space-4) var(--bk-space-4);
  width: 100%;
  box-shadow: 0 -16px 48px var(--bk-shadow-3);
}

.bk-sheet__handle {
  width: 36px;
  height: 4px;
  background: var(--bk-ink-4);
  border-radius: 2px;
  margin: 0 auto var(--bk-space-3);
}

.bk-sheet__actions {
  display: flex;
  flex-direction: column;
  gap: var(--bk-space-2);
}

.bk-sheet__actions > button { width: 100%; }

.bk-spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--bk-light-5);
  border-top-color: var(--bk-green-base);
  border-radius: 50%;
  animation: demo-spin 800ms linear infinite;
  flex-shrink: 0;
}

.bk-spinner--sm { width: 12px; height: 12px; border-width: 1.5px; }

.bk-loading-btn,
.demo-loading-btn-interactive {
  display: inline-flex;
  align-items: center;
  gap: var(--bk-space-2);
}

.bk-loading-btn .bk-spinner,
.demo-loading-btn-interactive .bk-spinner {
  border: 1.5px solid var(--bk-on-green-track);
  border-top-color: var(--bk-on-green);
}

.bk-loading {
  display: flex;
  align-items: center;
  gap: var(--bk-space-3);
}

.bk-loading--full {
  align-items: flex-start;
}

.bk-loading--full .bk-spinner {
  margin-top: 4px;
}

.bk-loading__body { flex: 1; }

.bk-loading__title {
  font-family: var(--bk-font-sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--bk-ink-8);
  margin-bottom: 2px;
}

.bk-loading__detail {
  font-family: var(--bk-font-sans);
  font-size: 14px;
  color: var(--bk-ink-6);
  line-height: 1.5;
}

.bk-loading--full .bk-loading__detail {
  margin-bottom: var(--bk-space-3);
}

.bk-loading__progress {
  height: 4px;
  background: var(--bk-ink-2);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: var(--bk-space-2);
}

.bk-loading__progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--bk-green-base), var(--bk-green-hover));
  border-radius: 2px;
  transition: width 240ms ease;
}

.bk-loading__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--bk-space-3);
  flex-wrap: wrap;
}

.bk-loading__elapsed {
  font-family: var(--bk-font-mono);
  font-size: 11px;
  color: var(--bk-ink-5);
  letter-spacing: 0.02em;
}

.bk-loading__heartbeat {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--bk-font-mono);
  font-size: 11px;
  color: var(--bk-ink-5);
  letter-spacing: 0.02em;
}

.bk-loading__heartbeat-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--bk-green-base);
  animation: demo-heartbeat 1.4s ease-in-out infinite;
}

.bk-skeleton-card {
  padding: var(--bk-space-5);
  background: var(--bk-ink-1);
  border: 0.5px solid var(--bk-ink-2);
  border-radius: 10px;
  max-width: 480px;
}

.bk-skeleton {
  display: block;
  background: linear-gradient(
    90deg,
    var(--bk-light-1) 0%,
    var(--bk-light-4) 50%,
    var(--bk-light-1) 100%
  );
  background-size: 200% 100%;
  animation: demo-shimmer 1.5s ease-in-out infinite;
  border-radius: 3px;
}

.bk-retry {
  font-family: var(--bk-font-mono);
  font-size: 11px;
  color: var(--bk-ink-6);
  letter-spacing: 0.02em;
}

.bk-retry--warn { color: var(--bk-gold-hover); }

.bk-retry--err { color: var(--bk-red-glow); }

.bk-empty-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--bk-space-3);
  margin: var(--bk-space-5) 0;
}

.bk-empty {
  position: relative;
  background: var(--bk-ink-1);
  border: 1px solid var(--bk-light-2);
  border-radius: 8px;
  padding: var(--bk-space-7) var(--bk-space-5);
  text-align: center;
  overflow: hidden;
  isolation: isolate;
}

.bk-empty::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, var(--bk-light-1), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.bk-empty > * { position: relative; z-index: 1; }

.bk-empty__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bk-light-1);
  border: 0.5px solid var(--bk-light-2);
  font-size: 24px;
  color: var(--bk-ink-5);
  margin-bottom: var(--bk-space-4);
}

.bk-empty__icon--success {
  background: var(--bk-green-tint-3);
  border-color: var(--bk-green-edge-2);
  color: var(--bk-green-base);
}

.bk-empty__icon--danger {
  background: var(--bk-red-tint-3);
  border-color: var(--bk-red-edge-2);
  color: var(--bk-red-glow);
}

.bk-empty__title {
  font-family: var(--bk-font-sans);
  font-size: 16px;
  font-weight: 600;
  color: var(--bk-ink-8);
  margin-bottom: var(--bk-space-1);
}

.bk-empty__body {
  font-family: var(--bk-font-sans);
  font-size: 14px;
  color: var(--bk-ink-6);
  line-height: 1.55;
  margin: 0 auto var(--bk-space-5);
  max-width: 360px;
}

.bk-skeleton-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--bk-space-3);
  margin: var(--bk-space-5) 0;
}

.bk-skeleton-stat {
  position: relative;
  background: var(--bk-ink-1);
  border: 1px solid var(--bk-light-2);
  border-radius: 8px;
  padding: var(--bk-space-4);
  overflow: hidden;
  isolation: isolate;
}

.bk-skeleton-stat::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 1px 0 var(--bk-light-2);
  pointer-events: none;
}

.bk-skeleton-table { width: 100%; border-collapse: collapse; }

.bk-skeleton-table thead th {
  font-family: var(--bk-font-sans);
  font-size: 11px;
  color: var(--bk-ink-5);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
  text-align: left;
  padding: var(--bk-space-3) var(--bk-space-4);
  background: var(--bk-ink-0);
  border-bottom: 0.5px solid var(--bk-ink-2);
  white-space: nowrap;
}

.bk-skeleton-table tbody td {
  padding: var(--bk-space-3) var(--bk-space-4);
  border-bottom: 0.5px solid var(--bk-ink-1);
  vertical-align: middle;
}

.bk-skeleton-table tbody tr:last-child td { border-bottom: none; }

.bk-prompt-block {
  background: var(--bk-ink-0);
  border: 0.5px solid var(--bk-light-2);
  border-radius: 10px;
  margin: var(--bk-space-4) 0;
  overflow: hidden;
}

.bk-prompt-block__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--bk-space-3) var(--bk-space-4);
  background: var(--bk-ink-1);
  border-bottom: 0.5px solid var(--bk-light-2);
}

.bk-prompt-block__title {
  font-family: var(--bk-font-mono);
  font-size: 11px;
  color: var(--bk-gold-hover);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
}

.bk-prompt-block__body {
  padding: var(--bk-space-5);
  font-family: var(--bk-font-mono);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--bk-ink-7);
  white-space: pre-wrap;
  max-height: 500px;
  overflow-y: auto;
}

.bk-prompt-block__copy {
  background: var(--bk-ink-2);
  border: 0.5px solid var(--bk-ink-4);
  color: var(--bk-ink-7);
  font-family: var(--bk-font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 150ms ease;
}

.bk-prompt-block__copy:hover {
  background: var(--bk-ink-3);
  color: var(--bk-ink-8);
  border-color: var(--bk-ink-5);
}

.bk-prompt-block__copy.copied {
  background: var(--bk-green-deep);
  color: var(--bk-on-green);
  border-color: var(--bk-green-base);
}