/* ═══════════════════════════════════════════════════════════════
   FluentPath — Base components (design spec §6)
   ─────────────────────────────────────────────────────────────
   Load after tokens.css and theme.css. Every colour, size and radius is a
   token from tokens.css. Classes carry the `fp-` prefix so they can never
   collide with a page stylesheet; states are `is-*` modifiers, which JS toggles
   instead of writing style.cssText.

   Components marked (derived) had no mockup; they are built from the tokens and
   are reviewed on rendered screenshots (src/design-system.html).
   ═══════════════════════════════════════════════════════════════ */

/* ── Utilities ──────────────────────────────────────────────── */
.fp-hidden {
  display: none !important;
}
.fp-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;
}

/* Layout helpers that replace one-off inline styles */
.fp-block-center {
  display: block;
  margin-left: auto;
  margin-right: auto;
}
.fp-mt-3 {
  margin-top: var(--space-3);
}
.fp-mt-4 {
  margin-top: var(--space-4);
}
.fp-mt-6 {
  margin-top: var(--space-6);
}
.fp-mb-4 {
  margin-bottom: var(--space-4);
}
.fp-mb-8 {
  margin-bottom: var(--space-8);
}
.fp-text-center {
  text-align: center;
}

/* ── Icons (helper in icons.js: FP.icon('mic')) ─────────────── */
.fp-icon {
  display: inline-block;
  flex: none;
  vertical-align: -0.25em;
  width: 1.5rem;
  height: 1.5rem;
  fill: currentColor;
}
.fp-icon--sm {
  width: 1.25rem;
  height: 1.25rem;
} /* 20px: badges, inline */
.fp-icon--lg {
  width: 2rem;
  height: 2rem;
} /* 32px: empty states */

/* ── Spinner ────────────────────────────────────────────────── */
/* A white spinner on coral fails contrast, so it is navy there. */
.fp-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  flex: none;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: fp-spin 0.8s linear infinite;
}
@keyframes fp-spin {
  to {
    transform: rotate(360deg);
  }
}

/* ── Buttons (§6.1, §6.2) ───────────────────────────────────── */
.fp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 10px var(--space-6);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  font-family: var(--font-family-primary);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-bold);
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast),
    border-color var(--transition-fast);
}
.fp-btn--block {
  display: flex;
  width: 100%;
}

.fp-btn--primary {
  background: var(--action-primary-bg);
  color: var(--action-primary-text);
}
.fp-btn--secondary {
  background: var(--action-secondary-bg);
  color: var(--action-secondary-text);
}

/* Hover only where hover exists, so it never sticks on iOS. */
@media (hover: hover) {
  .fp-btn--primary:hover:not(:disabled):not(.is-loading) {
    background: var(--action-primary-hover);
    box-shadow: var(--elevation-1);
    transform: translateY(-1px);
  }
  .fp-btn--secondary:hover:not(:disabled):not(.is-loading) {
    background: var(--action-secondary-hover);
  }
}

/* Pressed: navy fill, coral text. It cannot be mistaken for the crimson error colour. */
.fp-btn--primary:active:not(:disabled) {
  background: var(--action-primary-active-bg);
  color: var(--action-primary-active-text);
  transform: scale(0.98);
}
.fp-btn--secondary:active:not(:disabled) {
  background: var(--fp-navy-950);
  transform: scale(0.98);
}

/* Playing (for example "Hear the model"): navy fill while the audio runs. */
.fp-btn--secondary.is-playing {
  background: var(--fp-navy-950);
  color: var(--fp-coral-500);
}

.fp-btn:disabled,
.fp-btn[aria-disabled='true'] {
  background: var(--surface-disabled);
  color: var(--text-muted);
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

/* Error: crimson fill, white text (5.62:1), short shake. */
.fp-btn--primary.is-error {
  background: var(--status-error);
  color: var(--fp-white);
  animation: fp-shake 0.3s;
}
.fp-btn--secondary.is-error {
  border-color: var(--status-error);
  color: var(--status-error);
}
@keyframes fp-shake {
  25% {
    transform: translateX(-4px);
  }
  75% {
    transform: translateX(4px);
  }
}

/* Loading: label stays visible; spinner is navy on coral, coral on navy. */
.fp-btn.is-loading {
  cursor: progress;
  pointer-events: none;
}
.fp-btn.is-loading::before {
  content: '';
  width: 16px;
  height: 16px;
  flex: none;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-right-color: transparent;
  animation: fp-spin 0.8s linear infinite;
}
.fp-btn--secondary.is-loading::before {
  color: var(--fp-coral-500);
}

/* A navy button disappears on a navy surface: give it a cream border there. */
.surface-dark .fp-btn--secondary,
[data-surface='dark'] .fp-btn--secondary {
  border-color: var(--fp-cream-50);
}

@media (max-width: 599px) {
  .fp-btn--primary {
    min-height: 48px;
  }
}

/* Text button: quiet action (log out, links that act). Same 44px target, no fill. */
.fp-btn--text {
  background: transparent;
  color: var(--fp-navy-900);
  padding: 8px var(--space-3);
  font-weight: var(--font-weight-semibold);
}
@media (hover: hover) {
  .fp-btn--text:hover:not(:disabled) {
    background: var(--fp-ice-100);
  }
}
.fp-btn--text:active:not(:disabled) {
  background: var(--fp-ice-100);
  transform: scale(0.98);
}

/* ── Bilingual text (English first, Spanish beneath, both always visible) ──
   Build with FP.ui.bi(en, es) or write the same markup by hand. Spanish wraps, never truncates. */
.fp-bi__es {
  display: block;
  font-size: 0.86em;
  font-weight: var(--font-weight-regular);
  color: var(--text-muted);
  line-height: 1.4;
  margin-top: 2px;
}
.fp-btn .fp-bi__es,
.surface-dark .fp-bi__es {
  color: inherit;
  opacity: 0.85;
}
/* B2, C1, C2 students: English only. ui.js puts `fp-no-es` on <html> from the stored level. */
.fp-no-es .fp-bi__es,
.fp-no-es .fp-es {
  display: none !important;
}
.fp-btn .fp-bi {
  text-align: center;
}

/* ── Page header (§4: 64px tablet/desktop, 56px mobile) ─────── */
.fp-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: var(--header-height-mobile);
  padding: calc(env(safe-area-inset-top) + var(--space-2)) max(var(--space-4), env(safe-area-inset-right))
    var(--space-2) max(var(--space-4), env(safe-area-inset-left));
  background: rgba(247, 245, 240, 0.92);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-subtle);
}
@media (min-width: 600px) {
  .fp-header {
    min-height: var(--header-height-desktop);
    padding-left: max(var(--space-6), env(safe-area-inset-left));
    padding-right: max(var(--space-6), env(safe-area-inset-right));
  }
}
.fp-logo {
  display: block;
  height: 28px;
  width: auto;
}
.fp-logo--stacked {
  height: 104px;
  margin: 0 auto;
}
/* Header buttons are often bilingual (two lines): keep them compact so they sit inside the header
   with breathing room above and below instead of filling it edge to edge. */
.fp-header .fp-btn {
  min-height: 44px;
  padding: 6px var(--space-4);
  font-size: var(--font-size-sm);
}
.fp-header .fp-bi {
  text-align: right;
}

/* ── Form fields (§6.3) ─────────────────────────────────────── */
.fp-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.fp-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}
.fp-input,
.fp-textarea,
.fp-select {
  width: 100%;
  min-height: 44px;
  padding: 10px var(--space-3);
  background: var(--fp-white);
  color: var(--text-primary);
  border: 1.5px solid var(--border-accessible);
  border-radius: var(--radius-sm);
  font-family: var(--font-family-primary);
  font-size: var(--font-size-input);
  line-height: 1.4;
  transition: border-color var(--transition-fast);
}
.fp-textarea {
  min-height: 96px;
  resize: vertical;
}
.fp-input::placeholder,
.fp-textarea::placeholder {
  color: var(--text-muted);
  opacity: 1;
}
@media (hover: hover) {
  .fp-input:hover,
  .fp-textarea:hover,
  .fp-select:hover {
    border-color: var(--fp-navy-900);
  }
}
.fp-input:focus,
.fp-textarea:focus,
.fp-select:focus {
  border-color: var(--fp-navy-900);
  border-width: 2px;
  padding: 9.5px 11.5px;
}
.fp-input:disabled,
.fp-textarea:disabled,
.fp-select:disabled,
.fp-input[readonly] {
  background: var(--surface-primary);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}
.fp-input.is-error,
.fp-textarea.is-error,
.fp-select.is-error {
  background: rgba(198, 40, 40, 0.04);
  border: 2px solid var(--status-error);
  padding: 9.5px 11.5px;
}
/* The error message is words plus an icon, never colour alone. */
.fp-field-error {
  display: flex;
  align-items: flex-start;
  gap: var(--space-1);
  font-size: var(--font-size-sm);
  color: var(--text-error);
}
.fp-field-error .fp-icon {
  width: 1.25rem;
  height: 1.25rem;
}
@media (max-width: 599px) {
  .fp-input,
  .fp-select {
    min-height: 48px;
  }
}

/* ── Cards and level tiles (§6.4) ───────────────────────────── */
.fp-card {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--elevation-1);
  padding: var(--space-6);
}
.fp-card--interactive,
.fp-tile {
  border: 1.5px solid var(--border-accessible);
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}
@media (hover: hover) {
  .fp-card--interactive:hover,
  .fp-tile:hover {
    border-color: var(--fp-navy-900);
    box-shadow: var(--elevation-2);
  }
}

/* Level tile (derived). Identity is the label (A1-C2), not a hue. */
.fp-tile {
  position: relative;
  background: var(--surface-card);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}
.fp-tile.is-selected {
  border: 2px solid var(--fp-navy-900);
  background: var(--surface-secondary);
}
.fp-tile.is-selected::after {
  /* filled check badge: Path Green with a navy check */
  content: '';
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--fp-green-500);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 -960 960 960' fill='%231E2A38'%3E%3Cpath d='m382-354 339-339q12-12 28.5-12t28.5 12q12 12 12 28.5T778-636L410-268q-12 12-28 12t-28-12L182-440q-12-12-11.5-28.5T183-497q12-12 28.5-12t28.5 12l142 143Z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 16px;
}
.fp-tile.is-locked,
.fp-tile[aria-disabled='true'] {
  background: var(--surface-primary);
  border: 1px dashed var(--border-subtle);
  opacity: 0.65;
  cursor: not-allowed;
  box-shadow: none;
}

/* ── Answer tile (multiple choice, §6.5, derived) ───────────── */
.fp-answer {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  min-height: 48px;
  padding: var(--space-3) var(--space-4);
  text-align: left;
  cursor: pointer;
  background: var(--fp-white);
  color: var(--text-primary);
  border: 1.5px solid var(--border-accessible);
  border-radius: var(--radius-sm);
  font-family: var(--font-family-primary);
  font-size: var(--font-size-body);
  line-height: 1.4;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast);
}
@media (hover: hover) {
  .fp-answer:hover:not(:disabled) {
    border-color: var(--fp-navy-900);
  }
}
.fp-answer.is-selected {
  border: 2px solid var(--fp-navy-900);
  background: var(--surface-secondary);
}
.fp-answer.is-correct {
  border: 2px solid var(--text-success);
  background: var(--status-success-bg);
}
.fp-answer.is-wrong {
  border: 2px solid var(--status-error);
  background: var(--status-error-bg);
}
.fp-answer:disabled {
  opacity: 0.65;
  cursor: default;
}
.fp-answer.is-correct:disabled,
.fp-answer.is-wrong:disabled {
  opacity: 1;
}
/* Correct/incorrect also say so in words and with an icon (colour is never the only signal). */
.fp-answer__verdict {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}
.fp-answer.is-correct .fp-answer__verdict {
  color: var(--text-success);
}
.fp-answer.is-wrong .fp-answer__verdict {
  color: var(--text-error);
}

/* ── Record / microphone button (§6.6, derived) ─────────────── */
.fp-mic-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  background: var(--fp-coral-500);
  color: var(--fp-navy-900);
  transition:
    background var(--transition-fast),
    box-shadow var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}
.fp-mic-btn .fp-icon {
  width: 1.75rem;
  height: 1.75rem;
}
.fp-mic-btn.is-requesting {
  cursor: progress;
}
.fp-mic-btn.is-requesting .fp-icon {
  display: none;
}
.fp-mic-btn.is-requesting::before {
  content: '';
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-right-color: transparent;
  animation: fp-spin 0.8s linear infinite;
}
.fp-mic-btn.is-recording {
  background: var(--fp-navy-900);
  color: var(--fp-cream-50);
  animation: fp-waypoint-pulse 2s ease-in-out infinite;
}
.fp-mic-btn.is-recorded {
  background: var(--fp-ice-100);
  color: var(--fp-navy-900);
  border-color: var(--border-accessible);
}
.fp-mic-btn.is-uploading {
  background: var(--fp-ice-100);
  cursor: progress;
}
.fp-mic-btn.is-failed {
  background: var(--fp-white);
  border: 2px solid var(--status-error);
  color: var(--text-error);
}
.fp-mic-btn:disabled {
  background: var(--surface-disabled);
  color: var(--text-muted);
  cursor: not-allowed;
  animation: none;
}
@keyframes fp-waypoint-pulse {
  0%,
  100% {
    box-shadow: 0 0 0 4px rgba(255, 111, 97, 0.35);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(255, 111, 97, 0.08);
  }
}
/* Reduced motion: no pulse, but the active state stays visible as a static 4px coral ring. */
@media (prefers-reduced-motion: reduce) {
  .fp-mic-btn.is-recording {
    animation: none;
    box-shadow: 0 0 0 4px var(--fp-coral-500);
  }
}

/* ── Waypoints and step indicators (§6.7) ───────────────────── */
.fp-waypoint {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  border-radius: 50%;
  width: 12px;
  height: 12px;
  background: var(--waypoint-upcoming-bg); /* upcoming: smaller, 60% coral */
}
.fp-waypoint.is-completed {
  width: 16px;
  height: 16px;
  background: var(--waypoint-completed-bg);
  color: var(--waypoint-completed-icon);
}
.fp-waypoint.is-current {
  width: 18px;
  height: 18px;
  background: var(--waypoint-active-bg);
  box-shadow: var(--waypoint-glow);
}
.fp-waypoint .fp-icon {
  width: 12px;
  height: 12px;
}
@media (prefers-reduced-motion: reduce) {
  .fp-waypoint.is-current {
    box-shadow: 0 0 0 4px var(--fp-coral-500);
  }
}

/* Lesson header: segmented bar of 8px pill segments. The text "Step 3 of 7" sits next to it. */
.fp-steps {
  display: flex;
  gap: var(--space-1);
}
.fp-steps__seg {
  flex: 1;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--fp-grey-300);
}
.fp-steps__seg.is-completed {
  background: var(--fp-green-500);
}
.fp-steps__seg.is-current {
  background: var(--fp-coral-500);
}

/* ── Badge / pill (§6.8) ────────────────────────────────────── */
.fp-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  min-height: 24px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--fp-ice-100);
  color: var(--fp-navy-900);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  line-height: 1.3;
}
.fp-badge--success {
  background: var(--status-success-bg);
  color: var(--status-success-text);
}
.fp-badge--warning {
  background: var(--status-warning-bg);
  color: var(--status-warning-text);
}
.fp-badge--error {
  background: var(--status-error-bg);
  color: var(--status-error-text);
}

/* ── Banners and toasts (§6.9, derived) ─────────────────────── */
/* Navy text on a tinted surface for every variant, a 4px left bar, and an icon
   that names the status. Never colour alone. */
.fp-banner {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  flex-wrap: wrap;
  padding: var(--space-3) var(--space-4);
  border-left: 4px solid var(--fp-slate-600);
  background: var(--fp-ice-100);
  color: var(--fp-navy-900);
  font-size: var(--font-size-sm);
  line-height: 1.5;
  border-radius: var(--radius-sm);
}
.fp-banner__icon {
  flex: none;
  color: var(--fp-slate-600);
}
.fp-banner__body {
  flex: 1 1 200px;
  min-width: 0;
}
.fp-banner__actions {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  flex-wrap: wrap;
}
.fp-banner--success {
  background: var(--status-success-bg);
  border-left-color: var(--text-success);
}
.fp-banner--success .fp-banner__icon {
  color: var(--text-success);
}
.fp-banner--warning {
  background: var(--status-warning-bg);
  border-left-color: var(--text-warning);
}
.fp-banner--warning .fp-banner__icon {
  color: var(--text-warning);
}
.fp-banner--error {
  background: var(--status-error-bg);
  border-left-color: var(--text-error);
}
.fp-banner--error .fp-banner__icon {
  color: var(--text-error);
}
.fp-banner--offline {
  background: var(--fp-ice-100);
  border-left-color: var(--fp-navy-900);
}
.fp-banner--offline .fp-banner__icon {
  color: var(--fp-navy-900);
}
/* Fixed to the top or bottom edge, clear of the notch and the home indicator. */
.fp-banner--top,
.fp-banner--bottom {
  position: fixed;
  left: 0;
  right: 0;
  z-index: 200;
  border-radius: 0;
  padding-left: max(var(--space-4), env(safe-area-inset-left));
  padding-right: max(var(--space-4), env(safe-area-inset-right));
}
.fp-banner--top {
  top: 0;
  padding-top: max(var(--space-3), env(safe-area-inset-top));
}
.fp-banner--bottom {
  bottom: 0;
  padding-bottom: max(var(--space-3), env(safe-area-inset-bottom));
}

.fp-toast-region {
  position: fixed;
  z-index: 400;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  pointer-events: none;
  padding: var(--space-4) var(--space-4) max(var(--space-4), env(safe-area-inset-bottom));
}
.fp-toast {
  pointer-events: auto;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  max-width: 480px;
  width: 100%;
  box-shadow: var(--elevation-2);
  animation: fp-toast-in 0.25s ease-out;
}
.fp-toast.is-leaving {
  opacity: 0;
  transition: opacity 0.4s;
}
@keyframes fp-toast-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Dismiss control inside a banner or toast (44px target). */
.fp-banner__close {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: calc(var(--space-3) * -1) calc(var(--space-2) * -1) calc(var(--space-3) * -1) 0;
  background: transparent;
  border: 0;
  border-radius: 50%;
  color: var(--fp-navy-900);
  cursor: pointer;
}
.fp-banner--below-header {
  position: fixed;
  left: 0;
  right: 0;
  z-index: 198;
  top: var(--header-height-mobile);
  border-radius: 0;
}

/* Floating "request a video call" control: wrapper holds the button (and Refresh while pending) */
.fp-fab {
  position: fixed;
  z-index: 199;
  right: max(var(--space-4), env(safe-area-inset-right));
  bottom: max(var(--space-4), env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-2);
  max-width: calc(100vw - var(--space-8));
}
.fp-fab .fp-btn {
  box-shadow: var(--elevation-2);
}
/* The same control placed inside the page (hub): no floating, no shadow */
.fp-call {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}
.fp-call .fp-bi {
  text-align: left;
}
.fp-call.is-pending #fp-call-btn {
  opacity: 0.9;
  cursor: default;
}
/* In a page header: an icon button; the label shows from 600px up */
.fp-call--compact .fp-btn {
  min-height: 44px;
  padding: 8px 12px;
}
.fp-call--compact .fp-call__label {
  display: none;
}
@media (min-width: 600px) {
  .fp-call--compact .fp-call__label {
    display: inline;
  }
}
.fp-call--compact.is-pending #fp-call-btn {
  opacity: 1;
  cursor: pointer;
}
.fp-fab .fp-bi {
  text-align: left;
}
.fp-fab.is-pending #fp-call-btn {
  opacity: 0.9;
  cursor: default;
}

/* Development banner (only on non-production hosts) */
.fp-dev-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 99999;
  text-align: center;
  padding: 3px 12px;
  background: var(--fp-navy-800);
  color: var(--fp-cream-50);
  font: 700 11px/1.4 monospace;
  letter-spacing: 0.15em;
}

/* Playback control for a just-made recording */
.btn-begin.fp-retry,
.btn-nav.fp-retry {
  display: block;
  margin: var(--space-3) auto 0;
}
.fp-audio-preview {
  display: block;
  width: 100%;
  max-width: 360px;
  margin-top: var(--space-2);
}

/* ── Modal and save overlay (§6.10, derived) ────────────────── */
.fp-scrim {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background: rgba(30, 42, 56, 0.5);
}
.fp-scrim.is-open {
  display: flex;
}
.fp-modal {
  position: relative;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow: auto;
  background: var(--fp-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--elevation-2);
  padding: var(--space-8) var(--space-6) var(--space-6);
  text-align: center;
}
.fp-modal__close {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 0;
  border-radius: 50%;
  color: var(--fp-navy-900);
  cursor: pointer;
}
.fp-modal__title {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-3);
}
/* Under 600px a modal is a bottom sheet. */
@media (max-width: 599px) {
  .fp-scrim.has-sheet {
    align-items: flex-end;
    padding: 0;
  }
  .fp-scrim.has-sheet .fp-modal {
    max-width: none;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding-bottom: max(var(--space-6), env(safe-area-inset-bottom));
  }
}
/* Forms inside a modal: left-aligned fields, stacked actions */
.fp-reset__view {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  text-align: left;
}
.fp-reset__view .fp-modal__title {
  margin: 0;
  padding-right: var(--space-8);
}
.fp-reset__sub {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}
.fp-modal .fp-field-error,
.fp-modal .fp-banner {
  text-align: left;
}
.fp-modal .fp-btn--text {
  align-self: center;
}
/* Resume dialog (checkpoint.js): icon, message, saved time, one primary action */
.fp-ckpt__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: var(--space-3);
  border-radius: 50%;
  background: var(--fp-ice-100);
  color: var(--fp-navy-900);
}
.fp-ckpt__msg {
  font-size: var(--font-size-body);
  line-height: 1.6;
}
.fp-ckpt__time {
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}
.fp-ckpt .fp-bi__es {
  font-size: 0.9em;
}
.fp-ckpt__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-6);
}
/* "Please wait" overlay used while a save is in flight. */
.fp-wait {
  max-width: 360px;
}
.fp-wait .fp-spinner {
  width: 36px;
  height: 36px;
  border-width: 3px;
  color: var(--fp-navy-900);
  margin-bottom: var(--space-4);
}
.fp-wait__msg {
  font-size: var(--font-size-body-lg);
  font-weight: var(--font-weight-semibold);
  line-height: 1.5;
}

/* ── Audio player (§6.11, derived) ──────────────────────────── */
.fp-audio {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.fp-audio__play {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 0;
  cursor: pointer;
  background: var(--fp-coral-500);
  color: var(--fp-navy-900);
}
.fp-audio__play:disabled {
  background: var(--surface-disabled);
  color: var(--text-muted);
  cursor: not-allowed;
}
.fp-audio__track {
  flex: 1;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--border-subtle);
  overflow: hidden;
}
.fp-audio__fill {
  height: 100%;
  width: 0;
  background: var(--fp-navy-900);
}
.fp-audio__plays {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

/* ── Tables (teacher, §6.13, derived) ───────────────────────── */
.fp-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
} /* scroll, never truncate */
.fp-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--fp-white);
  font-size: var(--font-size-body);
}
.fp-table th {
  position: sticky;
  top: 0;
  background: var(--fp-ice-100);
  color: var(--fp-navy-900);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-align: left;
  padding: var(--space-3);
}
.fp-table td {
  padding: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
}
.fp-table--zebra tbody tr:nth-child(even) {
  background: var(--surface-primary);
}

/* ── Wrapping (Spanish runs 20-30% longer): never ellipsis on UI text ── */
.fp-btn,
.fp-badge,
.fp-label,
.fp-banner,
.fp-answer {
  overflow-wrap: anywhere;
  white-space: normal;
}