/* Staff modal — GTM design system */

.stf-modal-overlay {
  position: fixed;
  inset: 0;
  background: color-mix(in srgb, var(--color-inverse-surface) 40%, transparent);
  backdrop-filter: blur(4px);
  z-index: 1100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

.stf-modal-overlay.open {
  display: flex;
}

.stf-modal {
  width: min(100%, 36rem);
  max-height: min(92vh, 44rem);
  background: var(--color-surface-container-lowest);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-overlay);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.96) translateY(8px);
  opacity: 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.stf-modal-overlay.open .stf-modal {
  transform: scale(1) translateY(0);
  opacity: 1;
}

.stf-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-outline-variant);
  background: var(--color-surface-container-low);
}

.stf-modal__header h3 {
  margin: 0;
  font-size: var(--font-size-headline-sm);
}

.stf-modal__close {
  border: none;
  background: transparent;
  border-radius: var(--radius-full);
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-on-surface-variant);
}

.stf-modal__close:hover {
  background: var(--color-surface-container-high);
}

.stf-modal__body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md);
}

.stf-modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  border-top: 1px solid var(--color-outline-variant);
  background: var(--color-surface-container-low);
}

.stf-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-base);
  margin-bottom: var(--space-sm);
}

.stf-field label {
  font-size: var(--font-size-label-md);
  font-weight: var(--font-weight-label-md);
  color: var(--color-on-surface-variant);
}

.stf-required {
  color: var(--color-error);
}

.stf-control {
  width: 100%;
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-lg);
  background: var(--color-surface-container-low);
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-family-base);
  font-size: var(--font-size-body-md);
  color: var(--color-on-surface);
  box-sizing: border-box;
}

.stf-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 14%, transparent);
  background: var(--color-surface-container-lowest);
}

.stf-form-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-sm);
}

.stf-input-icon-wrap {
  position: relative;
}

.stf-input-icon-wrap .material-symbols-outlined {
  position: absolute;
  left: var(--space-sm);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-outline);
  font-size: 1.125rem;
  pointer-events: none;
}

.stf-control--icon {
  padding-left: calc(var(--space-md) + var(--space-sm));
}

.stf-select-wrap {
  position: relative;
}

.stf-select-wrap .material-symbols-outlined {
  position: absolute;
  right: var(--space-sm);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-on-surface-variant);
  pointer-events: none;
}

.stf-select-wrap select {
  appearance: none;
  padding-right: calc(var(--space-md) + var(--space-sm));
}

.stf-hint {
  margin: var(--space-base) 0 0;
  font-size: var(--font-size-label-sm);
  color: var(--color-outline);
}

.stf-check-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  cursor: pointer;
  font-size: var(--font-size-body-md);
  color: var(--color-on-surface);
}

.stf-check-item--inline {
  margin: var(--space-sm) 0;
}

.stf-check-item input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.stf-check-box {
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid var(--color-outline);
  border-radius: var(--radius-default);
  background: var(--color-surface-container);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stf-check-item input:checked + .stf-check-box {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.stf-check-box .material-symbols-outlined {
  display: none;
  font-size: 1.125rem;
}

.stf-check-item input:checked + .stf-check-box .material-symbols-outlined {
  display: inline-flex;
}

.stf-btn-secondary,
.stf-btn-primary {
  border-radius: var(--radius-lg);
  padding: var(--space-xs) var(--space-md);
  font-family: var(--font-family-base);
  font-size: var(--font-size-label-md);
  font-weight: var(--font-weight-label-md);
  cursor: pointer;
  min-height: 2.5rem;
}

.stf-btn-secondary {
  border: 1px solid var(--color-outline-variant);
  background: var(--color-surface-container-lowest);
  color: var(--color-on-surface-variant);
}

.stf-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-base);
  border: none;
  background: var(--color-primary-container);
  color: var(--color-on-primary);
  box-shadow: var(--shadow-card);
}

.stf-btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

@media (max-width: 640px) {
  .stf-form-grid-2 {
    grid-template-columns: 1fr;
  }
}