/*
 * DRIVE Admin UI Foundation
 *
 * All component selectors are prefixed with drive-ui-. Legacy styles remain
 * in place until an explicit page migration is approved.
 */
:root {
  --drive-ui-bg: #f5f7fa;
  --drive-ui-surface: #ffffff;
  --drive-ui-surface-muted: #f8fafc;
  --drive-ui-text: #17213a;
  --drive-ui-text-muted: #526174;
  --drive-ui-border: #dbe3ee;
  --drive-ui-border-strong: #c5d0df;
  --drive-ui-primary: #f5c400;
  --drive-ui-primary-hover: #d9ad00;
  --drive-ui-primary-text: #1f2937;
  --drive-ui-focus: #1d4ed8;
  --drive-ui-radius-sm: 0.5rem;
  --drive-ui-radius-md: 0.75rem;
  --drive-ui-radius-lg: 1rem;
  --drive-ui-shadow-card: 0 0.5rem 1.5rem rgba(30, 55, 90, 0.07);
  --drive-ui-shadow-modal: 0 1.5rem 4rem rgba(15, 23, 42, 0.24);
  --drive-ui-control-height: 2.5rem;
  --drive-ui-space-1: 0.25rem;
  --drive-ui-space-2: 0.5rem;
  --drive-ui-space-3: 0.75rem;
  --drive-ui-space-4: 1rem;
  --drive-ui-space-5: 1.5rem;
  --drive-ui-space-6: 2rem;
  --drive-ui-success-bg: #e8f5e9;
  --drive-ui-success-text: #166534;
  --drive-ui-warning-bg: #fff4cc;
  --drive-ui-warning-text: #854d0e;
  --drive-ui-danger-bg: #fee2e2;
  --drive-ui-danger-text: #991b1b;
  --drive-ui-info-bg: #e0f2fe;
  --drive-ui-info-text: #075985;
  --drive-ui-neutral-bg: #f1f5f9;
  --drive-ui-neutral-text: #334155;
}

.drive-ui-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.drive-ui-eyebrow {
  margin: 0 0 var(--drive-ui-space-2);
  color: var(--drive-ui-text-muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  line-height: 1.2;
  text-transform: uppercase;
}

.drive-ui-page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--drive-ui-space-5);
  margin: 0 0 var(--drive-ui-space-5);
}

.drive-ui-page-header__copy {
  min-width: 0;
}

.drive-ui-page-header__title {
  margin: 0;
  color: var(--drive-ui-text);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.drive-ui-page-header__subline {
  max-width: 62rem;
  margin: var(--drive-ui-space-2) 0 0;
  color: var(--drive-ui-text-muted);
  line-height: 1.5;
}

.drive-ui-page-header__actions,
.drive-ui-toolbar__actions,
.drive-ui-empty-state__action {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: var(--drive-ui-space-2);
}

.drive-ui-button,
.drive-ui-page-header__actions a,
.drive-ui-page-header__actions button,
.drive-ui-toolbar__actions a,
.drive-ui-toolbar__actions button,
.drive-ui-empty-state__action a,
.drive-ui-empty-state__action button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.75rem;
  min-height: var(--drive-ui-control-height);
  padding: 0.5rem 0.875rem;
  border: 1px solid transparent;
  border-radius: var(--drive-ui-radius-sm);
  font: inherit;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
}

.drive-ui-button--primary,
.drive-ui-page-header__actions .drive-ui-button--primary,
.drive-ui-toolbar__actions .drive-ui-button--primary {
  border-color: var(--drive-ui-primary);
  background: var(--drive-ui-primary);
  color: var(--drive-ui-primary-text);
}

.drive-ui-button--secondary,
.drive-ui-page-header__actions .drive-ui-button--secondary,
.drive-ui-toolbar__actions .drive-ui-button--secondary {
  border-color: var(--drive-ui-border-strong);
  background: var(--drive-ui-surface);
  color: var(--drive-ui-text);
}

.drive-ui-section-card,
.drive-ui-table-shell,
.drive-ui-kpi-card {
  border: 1px solid var(--drive-ui-border);
  border-radius: var(--drive-ui-radius-lg);
  background: var(--drive-ui-surface);
  box-shadow: var(--drive-ui-shadow-card);
}

.drive-ui-section-card__header,
.drive-ui-table-shell__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--drive-ui-space-4);
  padding: var(--drive-ui-space-5) var(--drive-ui-space-5) 0;
}

.drive-ui-section-card__header h2,
.drive-ui-table-shell__header h2 {
  margin: 0;
  color: var(--drive-ui-text);
  font-size: 1.1rem;
}

.drive-ui-section-card__header p,
.drive-ui-table-shell__header p {
  margin: var(--drive-ui-space-1) 0 0;
  color: var(--drive-ui-text-muted);
  font-size: 0.875rem;
}

.drive-ui-section-card__body {
  padding: var(--drive-ui-space-5);
}

.drive-ui-kpi-card {
  display: flex;
  align-items: center;
  gap: var(--drive-ui-space-3);
  min-width: 0;
  min-height: 6rem;
  padding: var(--drive-ui-space-4);
}

.drive-ui-kpi-card__icon {
  display: inline-grid;
  flex: 0 0 2.75rem;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border-radius: var(--drive-ui-radius-md);
  background: var(--drive-ui-neutral-bg);
  color: var(--drive-ui-neutral-text);
  font-size: 1.15rem;
}

.drive-ui-kpi-card--success .drive-ui-kpi-card__icon {
  background: var(--drive-ui-success-bg);
  color: var(--drive-ui-success-text);
}

.drive-ui-kpi-card--warning .drive-ui-kpi-card__icon {
  background: var(--drive-ui-warning-bg);
  color: var(--drive-ui-warning-text);
}

.drive-ui-kpi-card--danger .drive-ui-kpi-card__icon {
  background: var(--drive-ui-danger-bg);
  color: var(--drive-ui-danger-text);
}

.drive-ui-kpi-card--info .drive-ui-kpi-card__icon {
  background: var(--drive-ui-info-bg);
  color: var(--drive-ui-info-text);
}

.drive-ui-kpi-card__content {
  display: grid;
  min-width: 0;
  gap: var(--drive-ui-space-1);
}

.drive-ui-kpi-card__label,
.drive-ui-kpi-card__subline {
  color: var(--drive-ui-text-muted);
}

.drive-ui-kpi-card__label {
  font-size: 0.8rem;
  font-weight: 700;
}

.drive-ui-kpi-card__value {
  color: var(--drive-ui-text);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  line-height: 1;
}

.drive-ui-kpi-card__subline {
  font-size: 0.75rem;
}

.drive-ui-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 1.75rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 750;
  line-height: 1.2;
  white-space: nowrap;
}

.drive-ui-status-badge__dot,
.drive-ui-deadline__dot,
.drive-ui-banner__marker {
  flex: 0 0 auto;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
}

.drive-ui-status-badge--success {
  border-color: #b7dfbf;
  background: var(--drive-ui-success-bg);
  color: var(--drive-ui-success-text);
}

.drive-ui-status-badge--warning {
  border-color: #f0d58a;
  background: var(--drive-ui-warning-bg);
  color: var(--drive-ui-warning-text);
}

.drive-ui-status-badge--danger {
  border-color: #f2b8b8;
  background: var(--drive-ui-danger-bg);
  color: var(--drive-ui-danger-text);
}

.drive-ui-status-badge--info {
  border-color: #a9d8ef;
  background: var(--drive-ui-info-bg);
  color: var(--drive-ui-info-text);
}

.drive-ui-status-badge--neutral {
  border-color: var(--drive-ui-border);
  background: var(--drive-ui-neutral-bg);
  color: var(--drive-ui-neutral-text);
}

.drive-ui-status-badge--success .drive-ui-status-badge__dot,
.drive-ui-deadline--success .drive-ui-deadline__dot {
  background: var(--drive-ui-success-text);
}

.drive-ui-status-badge--warning .drive-ui-status-badge__dot,
.drive-ui-deadline--warning .drive-ui-deadline__dot {
  background: var(--drive-ui-warning-text);
}

.drive-ui-status-badge--danger .drive-ui-status-badge__dot,
.drive-ui-deadline--danger .drive-ui-deadline__dot {
  background: var(--drive-ui-danger-text);
}

.drive-ui-status-badge--info .drive-ui-status-badge__dot,
.drive-ui-deadline--info .drive-ui-deadline__dot {
  background: var(--drive-ui-info-text);
}

.drive-ui-status-badge--neutral .drive-ui-status-badge__dot,
.drive-ui-deadline--neutral .drive-ui-deadline__dot {
  background: var(--drive-ui-neutral-text);
}

.drive-ui-deadline {
  display: inline-flex;
  align-items: flex-start;
  gap: var(--drive-ui-space-2);
  min-width: 9rem;
  color: var(--drive-ui-text);
}

.drive-ui-deadline__dot {
  margin-top: 0.35rem;
}

.drive-ui-deadline__copy {
  display: grid;
  gap: 0.1rem;
}

.drive-ui-deadline__copy time,
.drive-ui-deadline__status {
  font-weight: 700;
}

.drive-ui-deadline__copy small {
  color: var(--drive-ui-text-muted);
  font-size: 0.75rem;
}

.drive-ui-deadline--overdue .drive-ui-deadline__status,
.drive-ui-deadline--danger .drive-ui-deadline__status {
  color: var(--drive-ui-danger-text);
}

.drive-ui-deadline--critical .drive-ui-deadline__status {
  color: var(--drive-ui-danger-text);
}

.drive-ui-deadline--warning .drive-ui-deadline__status {
  color: var(--drive-ui-warning-text);
}

.drive-ui-deadline--upcoming .drive-ui-deadline__status,
.drive-ui-deadline--info .drive-ui-deadline__status {
  color: var(--drive-ui-info-text);
}

.drive-ui-deadline--ok .drive-ui-deadline__status,
.drive-ui-deadline--success .drive-ui-deadline__status {
  color: var(--drive-ui-success-text);
}

.drive-ui-toolbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--drive-ui-space-3);
  padding: var(--drive-ui-space-3);
  border: 1px solid var(--drive-ui-border);
  border-radius: var(--drive-ui-radius-md);
  background: var(--drive-ui-surface);
  box-shadow: var(--drive-ui-shadow-card);
}

.drive-ui-toolbar__fields {
  display: flex;
  flex: 1 1 auto;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--drive-ui-space-3);
}

.drive-ui-filter-field {
  display: grid;
  min-width: 10rem;
  gap: var(--drive-ui-space-1);
}

.drive-ui-filter-field label {
  color: var(--drive-ui-text-muted);
  font-size: 0.75rem;
  font-weight: 700;
}

.drive-ui-filter-select,
.drive-ui-toolbar input,
.drive-ui-toolbar select {
  min-height: var(--drive-ui-control-height);
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--drive-ui-border-strong);
  border-radius: var(--drive-ui-radius-sm);
  background: var(--drive-ui-surface);
  color: var(--drive-ui-text);
  font: inherit;
}

.drive-ui-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--drive-ui-space-1);
  border-bottom: 1px solid var(--drive-ui-border);
}

.drive-ui-tab {
  display: inline-flex;
  align-items: center;
  min-height: var(--drive-ui-control-height);
  padding: 0.5rem 0.8rem;
  border-bottom: 3px solid transparent;
  color: var(--drive-ui-text-muted);
  font-weight: 700;
  text-decoration: none;
}

.drive-ui-tab.is-active {
  border-bottom-color: var(--drive-ui-primary-hover);
  color: var(--drive-ui-text);
}

.drive-ui-table-shell__scroll {
  overflow-x: auto;
  padding: var(--drive-ui-space-4) var(--drive-ui-space-5) var(--drive-ui-space-5);
}

.drive-ui-table-shell table {
  width: 100%;
  min-width: 42rem;
  border-collapse: collapse;
  color: var(--drive-ui-text);
}

.drive-ui-table-shell th,
.drive-ui-table-shell td {
  padding: 0.8rem 0.75rem;
  border-bottom: 1px solid var(--drive-ui-border);
  text-align: left;
  vertical-align: middle;
}

.drive-ui-table-shell th {
  background: var(--drive-ui-surface-muted);
  color: var(--drive-ui-text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.drive-ui-table-shell tbody tr:hover {
  background: #fbfdff;
}

.drive-ui-empty-state {
  display: grid;
  justify-items: center;
  padding: var(--drive-ui-space-6) var(--drive-ui-space-5);
  border: 1px dashed var(--drive-ui-border-strong);
  border-radius: var(--drive-ui-radius-md);
  background: var(--drive-ui-surface-muted);
  text-align: center;
}

.drive-ui-empty-state__icon {
  display: inline-grid;
  width: 2.75rem;
  height: 2.75rem;
  margin-bottom: var(--drive-ui-space-3);
  place-items: center;
  border-radius: 50%;
  background: var(--drive-ui-success-bg);
  color: var(--drive-ui-success-text);
  font-size: 1.25rem;
}

.drive-ui-empty-state h2 {
  margin: 0;
  color: var(--drive-ui-text);
  font-size: 1.1rem;
}

.drive-ui-empty-state p {
  max-width: 38rem;
  margin: var(--drive-ui-space-2) 0 0;
  color: var(--drive-ui-text-muted);
}

.drive-ui-banner {
  display: flex;
  align-items: flex-start;
  gap: var(--drive-ui-space-3);
  padding: var(--drive-ui-space-3) var(--drive-ui-space-4);
  border: 1px solid transparent;
  border-radius: var(--drive-ui-radius-md);
}

.drive-ui-banner > div {
  display: grid;
  gap: var(--drive-ui-space-1);
}

.drive-ui-banner--success {
  border-color: #b7dfbf;
  background: var(--drive-ui-success-bg);
  color: var(--drive-ui-success-text);
}

.drive-ui-banner--warning {
  border-color: #f0d58a;
  background: var(--drive-ui-warning-bg);
  color: var(--drive-ui-warning-text);
}

.drive-ui-banner--danger {
  border-color: #f2b8b8;
  background: var(--drive-ui-danger-bg);
  color: var(--drive-ui-danger-text);
}

.drive-ui-banner--info {
  border-color: #a9d8ef;
  background: var(--drive-ui-info-bg);
  color: var(--drive-ui-info-text);
}

.drive-ui-banner--neutral {
  border-color: var(--drive-ui-border);
  background: var(--drive-ui-neutral-bg);
  color: var(--drive-ui-neutral-text);
}

.drive-ui-banner--success .drive-ui-banner__marker { background: var(--drive-ui-success-text); }
.drive-ui-banner--warning .drive-ui-banner__marker { background: var(--drive-ui-warning-text); }
.drive-ui-banner--danger .drive-ui-banner__marker { background: var(--drive-ui-danger-text); }
.drive-ui-banner--info .drive-ui-banner__marker { background: var(--drive-ui-info-text); }
.drive-ui-banner--neutral .drive-ui-banner__marker { background: var(--drive-ui-neutral-text); }

.drive-ui-person-chip {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  gap: var(--drive-ui-space-2);
  color: inherit;
  text-decoration: none;
}

.drive-ui-person-chip__initials {
  display: inline-grid;
  flex: 0 0 2.25rem;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  border-radius: 50%;
  background: var(--drive-ui-info-bg);
  color: var(--drive-ui-info-text);
  font-weight: 800;
}

.drive-ui-person-chip__copy {
  display: grid;
  min-width: 0;
  gap: 0.1rem;
}

.drive-ui-person-chip__copy strong,
.drive-ui-person-chip__copy small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.drive-ui-person-chip__copy small {
  color: var(--drive-ui-text-muted);
}

.drive-ui-detail-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--drive-ui-space-4);
  margin: 0;
}

.drive-ui-detail-field {
  min-width: 0;
}

.drive-ui-detail-field dt {
  color: var(--drive-ui-text-muted);
  font-size: 0.75rem;
  font-weight: 700;
}

.drive-ui-detail-field dd {
  margin: var(--drive-ui-space-1) 0 0;
  color: var(--drive-ui-text);
  font-weight: 650;
}

.drive-ui-overflow-menu {
  position: relative;
  display: inline-block;
}

.drive-ui-overflow-menu summary {
  display: inline-grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border: 1px solid var(--drive-ui-border);
  border-radius: var(--drive-ui-radius-sm);
  background: var(--drive-ui-surface);
  color: var(--drive-ui-text);
  font-size: 1.25rem;
  cursor: pointer;
  list-style: none;
}

.drive-ui-overflow-menu summary::-webkit-details-marker {
  display: none;
}

.drive-ui-overflow-menu__items {
  position: absolute;
  z-index: 20;
  top: calc(100% + var(--drive-ui-space-1));
  right: 0;
  display: grid;
  min-width: 12rem;
  padding: var(--drive-ui-space-1);
  border: 1px solid var(--drive-ui-border);
  border-radius: var(--drive-ui-radius-sm);
  background: var(--drive-ui-surface);
  box-shadow: var(--drive-ui-shadow-card);
}

.drive-ui-overflow-menu__items a {
  min-height: var(--drive-ui-control-height);
  padding: 0.55rem 0.7rem;
  border-radius: 0.35rem;
  color: var(--drive-ui-text);
  text-decoration: none;
}

.drive-ui-overflow-menu__items a:hover {
  background: var(--drive-ui-surface-muted);
}

.drive-ui-modal {
  position: fixed;
  z-index: 1100;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--drive-ui-space-4);
  background: rgba(15, 23, 42, 0.58);
}

.drive-ui-modal[hidden] {
  display: none !important;
}

.drive-ui-modal__panel {
  display: flex;
  flex-direction: column;
  width: min(100%, 56rem);
  max-height: min(90vh, 48rem);
  border: 1px solid var(--drive-ui-border);
  border-radius: var(--drive-ui-radius-lg);
  background: var(--drive-ui-surface);
  box-shadow: var(--drive-ui-shadow-modal);
}

.drive-ui-modal__header,
.drive-ui-modal__footer {
  flex: 0 0 auto;
  padding: var(--drive-ui-space-4) var(--drive-ui-space-5);
}

.drive-ui-modal__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--drive-ui-space-4);
  border-bottom: 1px solid var(--drive-ui-border);
}

.drive-ui-modal__header h2 {
  margin: 0;
  color: var(--drive-ui-text);
  font-size: 1.25rem;
}

.drive-ui-modal__content {
  overflow-y: auto;
  padding: var(--drive-ui-space-5);
}

.drive-ui-modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--drive-ui-space-2);
  border-top: 1px solid var(--drive-ui-border);
}

.drive-ui-modal__close {
  display: inline-grid;
  flex: 0 0 auto;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border: 1px solid var(--drive-ui-border);
  border-radius: var(--drive-ui-radius-sm);
  background: var(--drive-ui-surface);
  color: var(--drive-ui-text);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.drive-ui-button:focus-visible,
.drive-ui-page-header :where(a, button, input, select, textarea, summary):focus-visible,
.drive-ui-toolbar :where(a, button, input, select, textarea):focus-visible,
.drive-ui-tabs :where(a, button):focus-visible,
.drive-ui-table-shell :where(a, button):focus-visible,
.drive-ui-overflow-menu :where(summary, a):focus-visible,
.drive-ui-empty-state__action :where(a, button):focus-visible,
.drive-ui-modal :where(a, button, input, select, textarea):focus-visible {
  outline: 3px solid var(--drive-ui-focus);
  outline-offset: 2px;
}

body.drive-ui-modal-is-open {
  overflow: hidden;
}

@media (max-width: 720px) {
  .drive-ui-page-header,
  .drive-ui-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .drive-ui-page-header__actions,
  .drive-ui-toolbar__actions {
    justify-content: flex-start;
  }

  .drive-ui-toolbar__fields,
  .drive-ui-filter-field {
    width: 100%;
  }

  .drive-ui-filter-field {
    min-width: 0;
  }

  .drive-ui-detail-fields {
    grid-template-columns: 1fr;
  }

  .drive-ui-modal {
    align-items: flex-end;
    padding: 0;
  }

  .drive-ui-modal__panel {
    width: 100%;
    max-height: 94vh;
    border-radius: var(--drive-ui-radius-lg) var(--drive-ui-radius-lg) 0 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .drive-ui-page-header *,
  .drive-ui-toolbar *,
  .drive-ui-modal * {
    scroll-behavior: auto;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}