/* ==========================================================================
   VOT Ecosystem — Shared UI Component Styles (vot-ui)
   Backed by vot-ui design tokens.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Buttons (Filled, Tonal, Outlined, Text, Danger, Quiet)
   -------------------------------------------------------------------------- */
.m3-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.625rem 1.375rem;
  border-radius: var(--vot-radius-full);
  font: var(--vot-type-label-large);
  border: 1px solid transparent;
  cursor: pointer;
  user-select: none;
  transition: background-color var(--vot-motion-fast) var(--vot-easing-standard),
              color var(--vot-motion-fast) var(--vot-easing-standard),
              border-color var(--vot-motion-fast) var(--vot-easing-standard),
              box-shadow var(--vot-motion-fast) var(--vot-easing-standard),
              transform var(--vot-motion-fast) var(--vot-easing-standard);
  text-decoration: none;
  white-space: nowrap;
}

.m3-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.m3-btn:focus-visible,
.m3-theme-toggle:focus-visible {
  outline: 2px solid var(--vot-primary);
  outline-offset: 2px;
}

/* Filled Button */
.m3-btn-filled {
  background-color: var(--vot-primary);
  color: var(--vot-on-primary);
  box-shadow: var(--vot-elevation-1);
}

.m3-btn-filled:hover {
  background-color: var(--vot-primary-hover);
  box-shadow: var(--vot-elevation-2);
}

.m3-btn-filled:active {
  box-shadow: var(--vot-elevation-1);
  transform: scale(0.98);
}

/* Tonal Button */
.m3-btn-tonal {
  background-color: var(--vot-surface-container-high);
  color: var(--vot-text);
}

.m3-btn-tonal:hover {
  background-color: var(--vot-surface-container);
}

.m3-btn-tonal:active {
  transform: scale(0.98);
}

/* Outlined Button */
.m3-btn-outlined {
  background-color: transparent;
  border-color: var(--vot-outline);
  color: var(--vot-primary);
}

.m3-btn-outlined:hover {
  background-color: var(--vot-surface-container);
  border-color: var(--vot-primary);
}

/* Text Button */
.m3-btn-text {
  background-color: transparent;
  color: var(--vot-primary);
  padding: 0.5rem 0.875rem;
  min-height: 38px;
}

.m3-btn-text:hover {
  background-color: var(--vot-surface-container-high);
}

/* Danger Button */
.m3-btn-danger {
  background-color: var(--vot-error) !important;
  color: var(--vot-on-error) !important;
}

.m3-btn-danger:hover {
  background-color: color-mix(in srgb, var(--vot-error) 82%, black) !important;
}

/* Quiet Button */
.m3-btn-quiet {
  background-color: transparent;
  color: var(--vot-muted);
  border: none;
}

.m3-btn-quiet:hover {
  background-color: var(--vot-surface-container-high);
  color: var(--vot-text);
}

/* Button Sizes */
.m3-btn-sm {
  min-height: 36px;
  padding: 0.375rem 0.875rem;
  font: var(--vot-type-label-medium);
}

.m3-btn-md {
  min-height: 44px;
  padding: 0.625rem 1.375rem;
  font: var(--vot-type-label-large);
}

.m3-btn-lg {
  min-height: 52px;
  padding: 0.75rem 1.75rem;
  font: var(--vot-type-title-medium);
}

.m3-btn-icon {
  width: 40px;
  height: 40px;
  min-height: 40px;
  padding: 0;
  border-radius: var(--vot-radius-full);
}

/* --------------------------------------------------------------------------
   Badges & Chips (Generic Semantic Visual Variants)
   -------------------------------------------------------------------------- */
.m3-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.625rem;
  border-radius: var(--vot-radius-sm);
  font: var(--vot-type-label-small);
  font-weight: 600;
  text-transform: capitalize;
  user-select: none;
  white-space: nowrap;
}

.m3-chip-neutral {
  background-color: var(--vot-surface-container-high);
  color: var(--vot-muted);
}

.m3-chip-primary {
  background-color: var(--vot-primary-container);
  color: var(--vot-primary);
}

.m3-chip-accent {
  background-color: var(--vot-accent-container);
  color: var(--vot-on-accent-container);
}

.m3-chip-info {
  background-color: var(--vot-info-container);
  color: var(--vot-on-info-container);
}

.m3-chip-success {
  background-color: var(--vot-success-container);
  color: var(--vot-on-success-container);
}

.m3-chip-warning {
  background-color: var(--vot-warning-container);
  color: var(--vot-on-warning-container);
}

.m3-chip-danger {
  background-color: var(--vot-error-container);
  color: var(--vot-on-error-container);
}

/* --------------------------------------------------------------------------
   Theme Toggle Button
   -------------------------------------------------------------------------- */
.m3-theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--vot-radius-full);
  background-color: transparent;
  color: var(--vot-muted);
  border: none;
  cursor: pointer;
  transition: background-color var(--vot-motion-fast) var(--vot-easing-standard),
              color var(--vot-motion-fast) var(--vot-easing-standard);
}

.m3-theme-toggle:hover {
  background-color: var(--vot-surface-container-high);
  color: var(--vot-text);
}

/* --------------------------------------------------------------------------
   Dialog & Modal Scrim
   -------------------------------------------------------------------------- */
@keyframes m3-fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes m3-scale-in { from { transform: scale(0.94); opacity: 0; } to { transform: scale(1); opacity: 1; } }

/* A native top-layer shell owns available iframe/visual viewport space. The
   same tonal surface supports compact confirmations and task-specific forms. */
dialog.m3-dialog-root {
  position: fixed;
  inset: var(--visual-viewport-top, 0px) 0 auto;
  box-sizing: border-box;
  margin: 0;
  width: 100%;
  height: var(--visual-viewport-height, 100dvh);
  max-width: none;
  max-height: none;
  padding: max(var(--vot-spacing-md), env(safe-area-inset-top)) max(var(--vot-spacing-md), env(safe-area-inset-right)) max(var(--vot-spacing-md), env(safe-area-inset-bottom)) max(var(--vot-spacing-md), env(safe-area-inset-left));
  border: 0;
  display: grid;
  place-items: center;
  background: color-mix(in srgb, var(--vot-scrim) 38%, transparent);
  color: var(--vot-text);
  font-family: var(--vot-font-sans);
  container-type: inline-size;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr);
}
html:has(dialog.m3-dialog-root[open]), body:has(dialog.m3-dialog-root[open]) { overflow: hidden; }
dialog.m3-dialog-root:not([open]) { display: none; }
dialog.m3-dialog-root::backdrop { background: transparent; }
.m3-dialog-root .m3-dialog-surface {
  box-sizing: border-box;
  min-width: 0;
  max-width: 100%;
  max-height: 100%;
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scroll-padding-block: var(--vot-spacing-md);
  padding: var(--vot-spacing-lg);
  border: 0;
  border-radius: var(--vot-radius-xl);
  background: var(--vot-surface-container-high);
  color: var(--vot-text);
  box-shadow: var(--vot-elevation-2);
  text-align: start;
  overflow-wrap: anywhere;
}
.m3-dialog-card { display: grid; gap: var(--vot-spacing-md); width: 440px; }
.m3-dialog-surface :where(h2, h3, p) { margin-block: 0; }
.m3-dialog-title { font: var(--vot-type-title-large); }
.m3-dialog-desc { font: var(--vot-type-body-medium); color: var(--vot-muted); }
.m3-dialog-icon-container {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: var(--vot-radius-lg);
  background: var(--vot-error-container);
  color: var(--vot-on-error-container);
}
/* Neutral treatment for ordinary confirmations; destructive consumers retain the default. */
.m3-dialog-icon-container.m3-dialog-icon-neutral {
  background: var(--vot-surface-container-high);
  color: var(--vot-text);
}
.m3-dialog-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--vot-spacing-sm);
  margin-top: var(--vot-spacing-sm);
}
.m3-dialog-surface :where(button, .m3-btn) { white-space: normal; min-width: 0; }
.m3-dialog-surface .m3-dialog-field {
  box-sizing: border-box;
  width: 100%;
  min-height: 48px;
  padding: 12px;
  border: 0;
  border-radius: var(--vot-radius-md);
  background: var(--vot-surface);
  color: var(--vot-text);
  font: var(--vot-type-body-medium);
}
/* Opt-in for task forms that need a visible control boundary on paper surfaces.
   Muted foreground supplies contrast; the softer outline token is decorative. */
.m3-dialog-surface .m3-dialog-field-outlined {
  min-height: 52px;
  padding-inline: var(--vot-spacing-md);
  border: 1px solid var(--vot-muted);
  border-radius: var(--vot-radius-lg);
}
.m3-dialog-surface .m3-dialog-field-outlined::placeholder {
  color: var(--vot-muted);
  opacity: 1;
}
.m3-dialog-surface .m3-dialog-field:hover:not(:disabled) { background: var(--vot-surface-container); }
.m3-dialog-surface .m3-dialog-field:disabled { color: var(--vot-muted); cursor: default; }
.m3-dialog-root :focus-visible {
  outline: 2px solid var(--vot-primary);
  outline-offset: 3px;
}
.m3-dialog-surface .m3-dialog-field:focus-visible { outline-offset: -2px; box-shadow: none; }
.m3-dialog-root:focus-visible { outline-offset: -4px; }
@container (max-width: 400px) {
  .m3-dialog-root .m3-dialog-surface { padding: var(--vot-spacing-md); }
}
@media (forced-colors: active) {
  .m3-dialog-root .m3-dialog-surface,
  .m3-dialog-surface .m3-dialog-field { border: 1px solid CanvasText; }
  .m3-dialog-root :focus-visible { outline-color: Highlight; }
}

/* --------------------------------------------------------------------------
   Cards & Surfaces
   -------------------------------------------------------------------------- */
.m3-card {
  border-radius: var(--vot-radius-lg);
  padding: 1.5rem;
  transition: transform var(--vot-motion-fast) var(--vot-easing-standard),
              background-color var(--vot-motion-fast) var(--vot-easing-standard),
              box-shadow var(--vot-motion-fast) var(--vot-easing-standard),
              border-color var(--vot-motion-fast) var(--vot-easing-standard);
}

.m3-card-elevated {
  background-color: var(--vot-surface-container);
  box-shadow: var(--vot-elevation-1);
}

.m3-card-elevated:hover {
  background-color: var(--vot-surface-container-high);
  box-shadow: var(--vot-elevation-2);
}

.m3-card-outlined {
  background-color: var(--vot-surface);
  border: 1px solid var(--vot-outline);
}

.m3-card-filled {
  background-color: var(--vot-surface-container-high);
}

/* --------------------------------------------------------------------------
   Form Fields & Accessibility
   -------------------------------------------------------------------------- */
.m3-field-group,
.text-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  width: 100%;
}

.m3-field-label,
.text-field label {
  font: var(--vot-type-label-large);
  color: var(--vot-text);
}

.m3-field-helper,
.text-field small {
  font: var(--vot-type-body-small);
  color: var(--vot-muted);
}

.field-error {
  font: var(--vot-type-body-small);
  color: var(--vot-error);
  margin-top: 0.25rem;
}

.m3-text-field,
.text-field input,
.m3-select,
.m3-textarea {
  width: 100%;
  min-height: 48px;
  background-color: var(--vot-surface);
  border: 1px solid var(--vot-outline);
  border-radius: var(--vot-radius-md);
  padding: 0.75rem 1rem;
  color: var(--vot-text);
  font: var(--vot-type-body-medium);
  outline: none;
  transition: border-color var(--vot-motion-fast, 150ms) ease,
              box-shadow var(--vot-motion-fast, 150ms) ease;
}

.m3-text-field:focus,
.text-field input:focus,
.m3-select:focus,
.m3-textarea:focus {
  border-color: var(--vot-primary);
  box-shadow: 0 0 0 1px var(--vot-primary);
}

.m3-textarea {
  min-height: 120px;
  resize: vertical;
}

/* --------------------------------------------------------------------------
   Loading Indicators & Skeletons
   -------------------------------------------------------------------------- */
.m3-skeleton-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 600px) {
  .m3-skeleton-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .m3-skeleton-grid { grid-template-columns: repeat(3, 1fr); }
}

.m3-skeleton-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 190px;
  padding: 1.5rem;
  overflow: hidden;
  background-color: var(--vot-surface-container);
  border-radius: var(--vot-radius-lg);
}

.m3-skeleton-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.m3-skeleton-icon {
  width: 36px;
  height: 36px;
  background-color: var(--vot-surface-container-high);
  border-radius: var(--vot-radius-md);
}

.m3-skeleton-title {
  width: 140px;
  height: 18px;
  margin-bottom: 0.375rem;
  background-color: var(--vot-surface-container-high);
  border-radius: var(--vot-radius-xs);
}

.m3-skeleton-slug {
  width: 90px;
  height: 12px;
  background-color: var(--vot-surface-container-high);
  border-radius: var(--vot-radius-xs);
}

.m3-skeleton-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 1.5rem;
  padding-top: 0.875rem;
  border-top: 1px solid var(--vot-outline);
}

.m3-skeleton-badge {
  width: 70px;
  height: 20px;
  background-color: var(--vot-surface-container-high);
  border-radius: var(--vot-radius-sm);
}

.m3-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--vot-surface-container-high);
  border-top-color: var(--vot-primary);
  border-radius: var(--vot-radius-full);
  animation: m3-spin 0.8s linear infinite;
  margin: 2rem auto;
}

@keyframes m3-spin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .m3-btn,
  .m3-theme-toggle,
  .m3-card,
  .m3-dialog-scrim,
  .m3-dialog-card,
  .m3-skeleton-shimmer,
  .m3-spinner {
    animation: none;
    transition: none;
  }
}

.m3-skeleton-line {
  height: 14px;
  width: 100%;
  border-radius: var(--vot-radius-xs);
  background-color: var(--vot-surface-container-high);
  margin-bottom: 0.5rem;
}

.m3-skeleton-line.short {
  width: 65%;
}

.m3-skeleton-shimmer {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.05) 50%,
    transparent 100%
  );
  animation: m3-shimmer 1.8s infinite;
}

@keyframes m3-shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* --------------------------------------------------------------------------
   AppSurface (Plugin UI Isolation Primitive)
   -------------------------------------------------------------------------- */
.vot-app-surface {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  min-height: 200px;
  overflow: hidden;
  border-radius: var(--vot-radius-md);
  background-color: var(--vot-surface);
}

.vot-app-surface-iframe {
  border: none;
  width: 100%;
  height: 100%;
  flex: 1 1 auto;
  display: block;
  background-color: transparent;
  transition: opacity var(--vot-motion-fast) var(--vot-easing-standard);
}

.vot-app-surface-iframe.initializing {
  opacity: 0;
  pointer-events: none;
}

.vot-app-surface-iframe.ready {
  opacity: 1;
  pointer-events: auto;
}

.vot-app-surface-loading {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background-color: var(--vot-surface);
  z-index: 2;
}

.vot-app-surface-loading-text {
  font: var(--vot-type-body-medium);
  color: var(--vot-text-secondary);
}

.vot-app-surface-error {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background-color: var(--vot-surface);
  z-index: 3;
}

.vot-app-surface-error-card {
  max-width: 420px;
  width: 100%;
  border-color: var(--vot-error);
  background-color: var(--vot-surface-container);
  padding: 1.25rem;
  border-radius: var(--vot-radius-md);
}

.vot-app-surface-error-title {
  margin: 0 0 0.5rem 0;
  font: var(--vot-type-title-medium);
  color: var(--vot-error);
}

.vot-app-surface-error-message {
  margin: 0;
  font: var(--vot-type-body-medium);
  color: var(--vot-text-secondary);
}


.surface-action-target { overflow-wrap: anywhere; max-height: 30vh; overflow-y: auto; }
/* Secondary dismissal stays readable on each host's tonal dialog surface. */
.surface-action-close { color: var(--vot-text); min-block-size: 48px; }

/* Deployment coherency ---------------------------------------------------- */
.deployment-update-notice {
  position: fixed;
  right: var(--vot-spacing-lg);
  top: var(--vot-release-notice-top, auto);
  bottom: var(--vot-release-notice-bottom, var(--vot-spacing-lg));
  z-index: 1200;
  display: flex;
  align-items: center;
  gap: var(--vot-spacing-md);
  width: min(440px, calc(100vw - 2 * var(--vot-spacing-lg)));
  padding: var(--vot-spacing-md);
  border-radius: var(--vot-radius-lg);
  color: var(--md-sys-color-on-surface);
  background: var(--md-sys-color-surface-container-high);
  box-shadow: var(--vot-elevation-2);
}

.deployment-update-notice[hidden] {
  display: none;
}

.deployment-update-notice__copy {
  display: flex;
  align-items: flex-start;
  gap: var(--vot-spacing-sm);
  min-width: 0;
}

.deployment-update-notice__copy strong {
  display: block;
  font: var(--md-sys-typescale-title-small);
}

.deployment-update-notice__copy p {
  margin: var(--vot-spacing-xs) 0 0;
  color: var(--md-sys-color-on-surface-variant);
  font: var(--md-sys-typescale-body-small);
}

.deployment-update-notice__icon {
  display: grid;
  flex: 0 0 32px;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: var(--vot-radius-full);
  color: var(--md-sys-color-on-primary-container);
  background: var(--md-sys-color-primary-container);
  font-size: 1.125rem;
}

.deployment-update-notice__action {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 0 var(--vot-spacing-md);
  border: 0;
  border-radius: var(--vot-radius-full);
  color: var(--md-sys-color-on-primary);
  background: var(--md-sys-color-primary);
  font: var(--md-sys-typescale-label-large);
  cursor: pointer;
}

.deployment-update-notice__action:hover {
  background: var(--md-sys-color-primary-hover);
}

.deployment-update-notice__action:focus-visible {
  outline: 3px solid var(--md-sys-color-primary);
  outline-offset: 3px;
}

@media (max-width: 600px) {
  .deployment-update-notice {
    right: var(--vot-spacing-md);
    bottom: var(--vot-release-notice-bottom, var(--vot-spacing-md));
    left: var(--vot-spacing-md);
    align-items: stretch;
    width: auto;
    flex-direction: column;
  }

  .deployment-update-notice__action {
    width: 100%;
  }
}

.m3-dialog-surface .m3-dialog-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: var(--vot-spacing-sm); }
.m3-dialog-surface .m3-dialog-actions button { min-height: 48px; padding-inline: var(--vot-spacing-md); border-radius: var(--vot-radius-full); }
.m3-dialog-surface .m3-dialog-actions button:disabled { opacity: 1; color: var(--vot-muted); background: var(--vot-surface-container); }

.m3-dialog-surface .m3-btn-danger,
.m3-dialog-surface .m3-btn-danger:hover {
  background-color: var(--vot-error-container) !important;
  color: var(--vot-on-error-container) !important;
}

/* Content tabs with a tonal selected surface; semantics/roving focus belong to the host. */
.m3-segmented-tabs {
  display: flex;
  align-items: stretch;
  gap: var(--vot-spacing-xs);
  padding: var(--vot-spacing-xs);
  border-radius: var(--vot-radius-xl);
  background: var(--vot-surface-container);
  overflow-x: auto;
  max-width: 100%;
}
.m3-segmented-tabs [role="tab"] {
  display: inline-flex;
  flex: 1 0 auto;
  align-items: center;
  justify-content: center;
  gap: var(--vot-spacing-sm);
  min-height: 44px;
  padding: var(--vot-spacing-sm) var(--vot-spacing-md);
  border: 0;
  border-radius: var(--vot-radius-lg);
  background: transparent;
  color: var(--vot-muted);
  font: var(--vot-type-label-large);
  white-space: nowrap;
}
.m3-segmented-tabs [role="tab"]:hover { background: var(--vot-surface-container-high); }
.m3-segmented-tabs [role="tab"][aria-selected="true"] {
  color: var(--vot-on-primary-container);
  background: var(--vot-primary-container);
}
.m3-segmented-tabs [role="tab"]:focus-visible {
  outline: 2px solid var(--vot-primary);
  outline-offset: -3px;
}
.m3-segmented-tabs [role="tab"] .icon { width: 20px; height: 20px; flex-shrink: 0; }