.ui-button,
.primary-button,
.secondary-button,
.text-button,
.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 9px 13px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 650;
  line-height: 1.2;
  text-decoration: none;
}

.ui-button--primary,
.primary-button {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
  box-shadow: 0 1px 2px rgb(0 0 0 / 8%);
}

.ui-button--primary:hover,
.primary-button:hover {
  border-color: var(--accent-strong);
  color: #fff;
  background: var(--accent-strong);
}

.ui-button--secondary,
.secondary-button,
.period-button {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 9px 13px;
  color: #435049;
  font-size: 13px;
  font-weight: 600;
  background: var(--surface);
  box-shadow: 0 1px 2px rgb(0 0 0 / 2%);
}

.ui-button--secondary:hover,
.secondary-button:hover,
.period-button:hover {
  border-color: var(--border-strong);
  color: var(--accent-strong);
}

.ui-button--ghost {
  border-color: var(--border);
  color: var(--text);
  background: transparent;
}

.ui-button--text,
.text-button,
.text-link {
  border: 0;
  border-radius: 0;
  padding: 0;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  background: transparent;
}

.ui-button--sm {
  gap: var(--space-1);
  padding: 6px 10px;
  font-size: 12px;
}

.ui-button:disabled,
.primary-button:disabled,
.secondary-button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.ui-button:active:not(:disabled),
.primary-button:active:not(:disabled),
.secondary-button:active:not(:disabled) {
  transform: translateY(1px);
}

.ui-surface,
.ui-card,
.card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.ui-surface {
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.ui-card--compact {
  padding: var(--space-3);
}

.ui-card--soft {
  background: var(--surface-soft);
}

.ui-card--interactive {
  width: 100%;
  color: inherit;
  font: inherit;
  text-align: left;
  appearance: none;
  cursor: pointer;
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease,
    transform 0.15s ease;
}

.ui-card--interactive:hover {
  border-color: color-mix(in srgb, var(--accent) 42%, var(--border));
  box-shadow: 0 8px 22px rgb(44 48 64 / 8%);
  transform: translateY(-1px);
}

.ui-card__title {
  margin: 0;
  color: var(--text);
  font-size: 16px;
  font-weight: 750;
  line-height: 1.35;
  letter-spacing: -0.025em;
}

.ui-badge,
.status-badge,
.status-pill {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
}

.status-pill {
  border: 1px solid transparent;
  padding: 9px 13px;
  color: var(--positive);
  font-size: 13px;
  font-weight: 600;
  background: var(--positive-soft);
  box-shadow: 0 1px 2px rgb(0 0 0 / 2%);
}

.ui-badge--accent,
.ui-badge--info,
.status-badge.progress {
  color: var(--progress-now);
  background: var(--progress-now-soft);
}

.ui-badge--warning,
.status-badge.planned {
  color: var(--progress-planned);
  background: var(--progress-planned-soft);
}

.ui-badge--positive,
.ui-badge--success,
.status-badge.done {
  color: var(--progress-done);
  background: var(--progress-done-soft);
}

.ui-badge--muted,
.ui-badge--neutral,
.status-badge.later {
  color: var(--progress-later);
  background: var(--progress-later-soft);
}

.ui-badge--negative,
.ui-badge--danger,
.status-badge.blocked {
  color: var(--progress-blocked);
  background: var(--progress-blocked-soft);
}

.status-badge.stable {
  color: #62656e;
  background: #f0f1f4;
}

.status-badge.attention {
  color: #9a6700;
  background: #fff7e8;
}

.ui-field {
  display: grid;
  gap: var(--space-2);
}

.ui-field > label,
.ui-field__label,
.ui-label {
  color: var(--text);
  font-size: 12px;
  font-weight: 650;
}

.ui-input,
.ui-select,
.ui-textarea {
  width: 100%;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--text);
  font: inherit;
  background: var(--surface);
}

.ui-textarea {
  min-height: 96px;
  resize: vertical;
}

.ui-form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.ui-stack {
  display: flex;
  flex-direction: column;
  gap: var(--stack-gap, var(--space-4));
}

.ui-cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--cluster-gap, var(--space-3));
}

.ui-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: var(--grid-gap, var(--space-4));
}

.ui-state,
.ui-state--empty,
.ui-state--loading,
.ui-state--error {
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  color: var(--muted);
  text-align: center;
  background: var(--surface-soft);
}

.ui-state__eyebrow {
  margin: 0 0 var(--space-2);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.ui-state__message {
  margin: var(--space-2) 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.ui-state__actions {
  display: flex;
  justify-content: center;
  margin-top: var(--space-3);
}

.ui-alert {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  line-height: 1.5;
}

.ui-alert--success {
  border-color: color-mix(in srgb, var(--positive) 28%, var(--border));
  color: #126c63;
  background: var(--positive-soft);
}

.ui-state--loading {
  cursor: progress;
}

.ui-state--error {
  border-color: color-mix(in srgb, var(--negative) 35%, var(--border));
  color: var(--negative);
  background: var(--negative-soft);
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Generic visibility utility (date filter bar, conditional blocks). */
.is-hidden {
  display: none;
}