/* admin/styles/components.css
 * Component styles: login card, buttons, spinner, nav bar.
 * Source: UI-SPEC §Interaction Contract (verbatim token values and spinner code).
 *
 * Transitions: only background-color, color, transform — never shorthand-all.
 * Colors: only custom properties from tokens.css — never Tailwind defaults.
 */

/* =========================================================
 * LOGIN CARD (State 1)
 * ========================================================= */

.login-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  max-width: 400px;
  width: 100%;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

/* Full-viewport centered layout for login and denied states */
.page-centered {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

/* Wordmark heading */
.wordmark {
  font-size: var(--text-heading-size);
  font-weight: var(--font-weight-semibold);
  line-height: var(--text-heading-lh);
  letter-spacing: var(--text-heading-tracking);
  color: var(--color-text-primary);
  text-align: center;
  margin-bottom: var(--space-xs);
}

/* Descriptor subtitle */
.descriptor {
  font-size: var(--text-label-size);
  line-height: var(--text-label-lh);
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: var(--space-2xl);
}

/* Footer caption */
.footer-caption {
  font-size: var(--text-label-size);
  line-height: var(--text-label-lh);
  color: var(--color-text-disabled);
  text-align: center;
  margin-top: var(--space-lg);
}

/* =========================================================
 * PRIMARY BUTTON / GITHUB SIGN-IN BUTTON (State 1)
 * ========================================================= */

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  background-color: var(--color-accent);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: var(--text-body-size);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  min-height: 44px;   /* WCAG 2.2 SC 2.5.8 touch target minimum */
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  width: 100%;
  text-align: center;
  text-decoration: none;
  -webkit-appearance: none;
  appearance: none;
}

/* Hover state — transition background-color only (specific property, not shorthand) */
@media (prefers-reduced-motion: no-preference) {
  .btn-primary {
    transition: background-color 150ms ease, transform 100ms ease;
  }
}

.btn-primary:hover:not([aria-disabled='true']) {
  background-color: var(--color-accent-hover);
}

/* Active/press state — translateY(1px) for tactile feel */
@media (prefers-reduced-motion: no-preference) {
  .btn-primary:active:not([aria-disabled='true']) {
    background-color: var(--color-accent-active);
    transform: translateY(1px);
  }
}

/* Disabled/loading state */
.btn-primary[aria-disabled='true'] {
  opacity: 0.65;
  cursor: not-allowed;
  pointer-events: none;
}

/* GitHub variant (same base, named for specificity) */
.btn-github {
  /* inherits .btn-primary — no additional styles in Phase 1 */
}

/* Icon inside button */
.btn-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* =========================================================
 * LOADING SPINNER (State 2)
 * Source: UI-SPEC "Loading Spinner" verbatim
 * ========================================================= */

@keyframes spin {
  to { transform: rotate(360deg); }
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-surface-raised);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

@media (prefers-reduced-motion: reduce) {
  .spinner {
    animation: none;
    opacity: 0.5;
  }
}

/* Loading container (State 2) */
.loading-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-2xl);
}

.loading-container p {
  font-size: var(--text-body-size);
  line-height: var(--text-body-lh);
  color: var(--color-text-secondary);
}

/* =========================================================
 * NAV BAR (State 3 — Authenticated Shell)
 * ========================================================= */

header[role='banner'] {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 48px;
  padding: 0 var(--space-xl);
  background: var(--color-surface-raised);
  border-bottom: 1px solid var(--color-border);
}

.nav-wordmark {
  font-size: var(--text-display-size);
  font-weight: var(--font-weight-semibold);
  line-height: var(--text-heading-lh);
  letter-spacing: var(--text-heading-tracking);
  color: var(--color-accent);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* GitHub avatar in nav */
.nav-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Username display */
.nav-username {
  font-size: var(--text-label-size);
  line-height: var(--text-label-lh);
  color: var(--color-text-secondary);
}

/* Sign-out button — text style, no background */
.btn-signout {
  background: none;
  border: none;
  font-family: var(--font-sans);
  font-size: var(--text-label-size);
  line-height: var(--text-label-lh);
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: var(--space-xs) var(--space-sm);
  min-height: 44px;   /* WCAG 2.2 SC 2.5.8 touch target */
  border-radius: 4px;
  -webkit-appearance: none;
  appearance: none;
}

@media (prefers-reduced-motion: no-preference) {
  .btn-signout {
    transition: color 120ms ease;
  }
}

.btn-signout:hover {
  color: var(--color-text-primary);
}

/* =========================================================
 * MAIN CONTENT AREA (State 3)
 * ========================================================= */

main[role='main'] {
  padding: var(--space-3xl) var(--space-xl);
  background: var(--color-bg);
}

/* =========================================================
 * RLS PROOF WIDGET (State 3)
 * ========================================================= */

.rls-widget {
  max-width: 600px;
}

.rls-widget h2 {
  font-size: var(--text-heading-size);
  font-weight: var(--font-weight-semibold);
  line-height: var(--text-heading-lh);
  letter-spacing: var(--text-heading-tracking);
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.rls-widget p {
  font-size: var(--text-body-size);
  line-height: var(--text-body-lh);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

/* Session active indicator */
.session-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-label-size);
  line-height: var(--text-label-lh);
  color: var(--color-text-secondary);
}

.session-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-success);
  flex-shrink: 0;
}

/* =========================================================
 * SHELL LAYOUT + SIDEBAR (Phase 2 — D-01)
 * ========================================================= */

/* Flex row: sidebar (220px) + main area, fills viewport below sticky header */
.shell-layout {
  display: flex;
  flex-direction: row;
}

/* Left sidebar nav — 220px fixed width (layout dimension, not a spacing token) */
.sidebar {
  width: 220px;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
}

/* Sidebar nav item — <a> element; min 44px touch target (WCAG 2.2 SC 2.5.8) */
.sidebar-item {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-left: 3px solid transparent;
}

@media (prefers-reduced-motion: no-preference) {
  .sidebar-item {
    transition: color 120ms ease;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sidebar-item {
    transition: none;
  }
}

.sidebar-item:hover {
  color: var(--color-text-primary);
}

.sidebar-item:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: -2px;
}

/* Active state — subtle left border + primary text + raised surface background */
.sidebar-item--active {
  color: var(--color-text-primary);
  border-left-color: var(--color-border);
  background: var(--color-surface-raised);
}

/* Main content area — flex: 1; receives hash router mounted views */
.view-area {
  flex: 1;
  padding: 0 var(--space-xl);
}

/* main.view-area is focused programmatically on route change (tabindex="-1",
 * shell.ts main.focus()) purely for screen-reader focus management — it must
 * NOT show the UA default focus ring (the persistent purple box around the
 * content region). Real interactive controls keep their :focus-visible rings. */
.view-area:focus,
.view-area:focus-visible {
  outline: none;
}

/* =========================================================
 * DENIED CARD (State 4)
 * ========================================================= */

.denied-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  max-width: 400px;
  width: 100%;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  text-align: center;
}

.denied-icon {
  color: var(--color-destructive);
  width: 32px;
  height: 32px;
  margin-bottom: var(--space-sm);
}

.denied-card h1 {
  font-size: var(--text-heading-size);
  font-weight: var(--font-weight-semibold);
  line-height: var(--text-heading-lh);
  letter-spacing: var(--text-heading-tracking);
  color: var(--color-text-primary);
}

.denied-card p {
  font-size: var(--text-body-size);
  line-height: var(--text-body-lh);
  color: var(--color-text-secondary);
}

.denied-card a {
  font-size: var(--text-body-size);
  color: var(--color-accent);
  margin-top: var(--space-sm);
}

/* =========================================================
 * ERROR MESSAGE (OAuth failure)
 * ========================================================= */

.error-message {
  font-size: var(--text-label-size);
  line-height: var(--text-label-lh);
  color: var(--color-destructive);
  text-align: center;
  margin-top: var(--space-sm);
}

/* =========================================================
 * TABLE (Phase 2 — shared by Apps, Campaigns, Ads, Assignments)
 * Source: 02-UI-SPEC.md §Component Contracts / Table Component
 * ========================================================= */

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-body-size);
  line-height: var(--text-body-lh);
}

.data-table thead th {
  font-size: var(--text-label-size);
  font-weight: var(--font-weight-regular);
  line-height: var(--text-label-lh);
  color: var(--color-text-secondary);
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.data-table tbody tr {
  border-bottom: 1px solid var(--color-border);
}

/* No border on last row */
.data-table tbody tr:last-child {
  border-bottom: none;
}

.data-table tbody td {
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text-primary);
  min-height: 48px; /* 8-point grid row height */
  vertical-align: middle;
}

@media (prefers-reduced-motion: no-preference) {
  .data-table tbody tr {
    transition: background-color 100ms ease;
  }
}

.data-table tbody tr:hover {
  background: var(--color-surface-raised);
}

/* Actions cell — flex row for action buttons */
.table-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Monospace cell (app_key display) */
.mono {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* =========================================================
 * STATUS BADGE (Phase 2)
 * Source: 02-UI-SPEC.md §Component Contracts / Status Badge
 * ========================================================= */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-label-size);
  font-weight: var(--font-weight-regular);
  line-height: var(--text-label-lh);
  color: var(--color-text-secondary);
  padding: 0 var(--space-xs);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.badge--active .badge-dot {
  background-color: var(--color-success);
}

.badge--active {
  color: var(--color-text-secondary);
}

.badge--inactive .badge-dot {
  background-color: var(--color-text-disabled);
}

.badge--inactive {
  color: var(--color-text-disabled);
}

/* =========================================================
 * MODAL (Phase 2)
 * Source: 02-UI-SPEC.md §Component Contracts / Modal
 * ========================================================= */

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
}

.modal-panel {
  position: relative;
  z-index: 101;
  background: var(--color-surface);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  width: 100%;
  max-width: 480px;
  max-height: 90dvh;
  overflow-y: auto;
  margin: var(--space-md);
}

.modal-panel--wide {
  max-width: 560px; /* Ad create modal — UI-SPEC §Modal Sizes */
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.modal-header h2 {
  font-size: var(--text-heading-size);
  font-weight: var(--font-weight-semibold);
  line-height: var(--text-heading-lh);
  letter-spacing: var(--text-heading-tracking);
  color: var(--color-text-primary);
  margin: 0;
}

.modal-body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--color-border);
}

/* =========================================================
 * FORM FIELDS (Phase 2)
 * Source: 02-UI-SPEC.md §Component Contracts / Form Fields
 * ========================================================= */

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.field-label {
  font-size: var(--text-label-size);
  font-weight: var(--font-weight-regular);
  line-height: var(--text-label-lh);
  color: var(--color-text-secondary);
}

.field-input {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-sans);
  font-size: var(--text-body-size);
  line-height: var(--text-body-lh);
  color: var(--color-text-primary);
  min-height: 40px;
  width: 100%;
  box-sizing: border-box;
  -webkit-appearance: none;
  appearance: none;
}

.field-input:focus {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.field-input[aria-invalid='true'] {
  border-color: var(--color-destructive);
}

.field-help {
  font-size: var(--text-label-size);
  line-height: var(--text-label-lh);
  color: var(--color-text-secondary);
  margin: 0;
}

.field-error {
  font-size: var(--text-label-size);
  line-height: var(--text-label-lh);
  color: var(--color-destructive);
  margin: 0;
}

.field-error:empty {
  display: none;
}

/* =========================================================
 * SECONDARY BUTTON (Phase 2)
 * Source: 02-UI-SPEC.md §Component Contracts / Primary Button
 * ========================================================= */

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-family: var(--font-sans);
  font-size: var(--text-body-size);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  min-height: 44px;
  padding: 12px 24px;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  -webkit-appearance: none;
  appearance: none;
}

@media (prefers-reduced-motion: no-preference) {
  .btn-secondary {
    transition: border-color 150ms ease, color 150ms ease;
  }
}

.btn-secondary:hover:not([aria-disabled='true']) {
  border-color: var(--color-text-disabled);
  color: var(--color-text-primary);
}

.btn-secondary[aria-disabled='true'] {
  opacity: 0.65;
  cursor: not-allowed;
  pointer-events: none;
}

/* Icon-only button (close X, copy icon) — 44×44 touch target */
.btn-icon-only {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--color-text-secondary);
  min-width: 44px;
  min-height: 44px;
  border-radius: 6px;
  cursor: pointer;
  padding: 0;
  -webkit-appearance: none;
  appearance: none;
}

@media (prefers-reduced-motion: no-preference) {
  .btn-icon-only {
    transition: color 120ms ease;
  }
}

.btn-icon-only:hover {
  color: var(--color-text-primary);
}

.btn-icon-only:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* Ghost/text toggle button (Activate/Deactivate) */
.btn-toggle {
  display: inline-flex;
  align-items: center;
  background: none;
  border: none;
  font-family: var(--font-sans);
  font-size: var(--text-label-size);
  line-height: var(--text-label-lh);
  color: var(--color-text-secondary);
  min-height: 44px;
  padding: 0 var(--space-xs);
  cursor: pointer;
  border-radius: 4px;
  -webkit-appearance: none;
  appearance: none;
}

@media (prefers-reduced-motion: no-preference) {
  .btn-toggle {
    transition: color 120ms ease;
  }
}

.btn-toggle:hover {
  color: var(--color-text-primary);
}

.btn-toggle--deactivate:hover {
  color: var(--color-destructive);
}

.btn-toggle:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* =========================================================
 * EMPTY STATE (Phase 2)
 * Source: 02-UI-SPEC.md §Component Contracts / Empty State
 * ========================================================= */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: var(--space-2xl);
  gap: var(--space-sm);
}

.empty-state-heading {
  font-size: var(--text-body-size);
  font-weight: var(--font-weight-semibold);
  line-height: var(--text-body-lh);
  color: var(--color-text-primary);
  margin: 0;
}

.empty-state-body {
  font-size: var(--text-body-size);
  line-height: var(--text-body-lh);
  color: var(--color-text-secondary);
  margin: 0;
}

/* =========================================================
 * CODE SNIPPET (Phase 2 — embed snippet display)
 * Source: 02-UI-SPEC.md §Screen 2 / Embed Snippet display
 * ========================================================= */

.code-snippet-wrap {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: var(--space-sm);
  margin: 0;
  overflow-x: auto;
}

.code-snippet {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  white-space: pre;
  display: block;
}

/* View heading row — h2 + CTA button side by side */
.view-heading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
  padding-top: var(--space-lg);
}

.view-heading-row h2 {
  font-size: var(--text-heading-size);
  font-weight: var(--font-weight-semibold);
  line-height: var(--text-heading-lh);
  letter-spacing: var(--text-heading-tracking);
  color: var(--color-text-primary);
  margin: 0;
}

/* btn-primary without full-width (inside heading row) */
.btn-primary--inline {
  width: auto;
}

/* Server error alert below modal footer */
.server-error {
  font-size: var(--text-label-size);
  line-height: var(--text-label-lh);
  color: var(--color-destructive);
  padding: 0 var(--space-lg) var(--space-md);
  margin: 0;
}

/* Breadcrumb nav */
.breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-label-size);
  line-height: var(--text-label-lh);
  color: var(--color-text-secondary);
  padding-top: var(--space-lg);
  padding-bottom: var(--space-sm);
}

.breadcrumb ol li + li::before {
  content: '/';
  margin-right: var(--space-xs);
  color: var(--color-text-disabled);
}

.breadcrumb a {
  color: var(--color-accent);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* Copy snippet button */
.btn-copy {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--color-accent);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: var(--text-label-size);
  font-weight: var(--font-weight-semibold);
  min-height: 44px;
  padding: var(--space-xs) var(--space-md);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

@media (prefers-reduced-motion: no-preference) {
  .btn-copy {
    transition: color 150ms ease;
  }
}

.btn-copy:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.btn-copy--success {
  color: var(--color-success);
}

.btn-copy--error {
  color: var(--color-destructive);
}

/* Slot snippet section (below slot row) */
.slot-snippet-section {
  padding: var(--space-sm) var(--space-md) var(--space-md);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* Detail section headings */
.detail-section {
  margin-bottom: var(--space-lg);
}

.detail-section h3 {
  font-size: var(--text-body-size);
  font-weight: var(--font-weight-semibold);
  line-height: var(--text-body-lh);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-md) 0;
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
}

/* =========================================================
 * IMAGE PREVIEW (Phase 2 — ad create modal live preview)
 * Source: 02-UI-SPEC.md §Screen 4 / Image File Input + Preview
 * ========================================================= */

.img-preview {
  max-width: 100%;
  max-height: 200px;
  object-fit: contain;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  display: block;
}