/*
 * ISEE Vocab — app styles
 * Loaded AFTER theme.css. Overrides only the brand-primary knob (burgundy),
 * everything else (cream/gold/ink/border/type/radii) comes from theme.css.
 */

:root {
  --color-primary:      #6b2b3a;
  --color-primary-dark: #4d1e29;
  --color-primary-tint: #f3e9eb;
  --color-green:        #6b2b3a;      /* alias used by .bp-btn-primary etc. */
  --color-green-dark:   #4d1e29;
  --color-green-tint:   #f3e9eb;
  --gradient-hero: radial-gradient(130% 120% at 80% -10%, #7c3444, #6b2b3a, #4d1e29);
}

/* ── Page shell ─────────────────────────────────────────────────────── */
.iv-wrap {
  max-width: 640px;
  padding-top: var(--space-7);
  padding-bottom: var(--space-9);
}

/* ── Student-code bar ───────────────────────────────────────────────── */
.iv-student-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: 10px var(--space-8);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  font-size: 13px;
}
.iv-student-label {
  color: var(--color-ink-muted);
  font-weight: 600;
}
.iv-student-code {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.01em;
}
.iv-student-input {
  font-family: var(--font-sans);
  font-size: 13px;
  padding: 5px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-paper);
  color: var(--color-ink);
  min-width: 150px;
}
.iv-student-input:focus { outline: none; border-color: var(--color-primary); }
.iv-sync-note {
  color: var(--color-terra);
  font-size: 12px;
  font-style: italic;
  margin-left: auto;
}

@media (max-width: 480px) {
  .iv-student-bar { padding: 10px var(--space-4); }
  .iv-sync-note { margin-left: 0; width: 100%; }
}

.iv-header { margin-bottom: var(--space-6); }

.iv-status {
  text-align: center;
  padding: var(--space-9) var(--space-6);
  color: var(--color-ink-muted);
}
.iv-status code {
  background: var(--color-cream);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 13px;
}
.iv-status .bp-btn { margin-top: var(--space-4); }

/* ── Controls bar ───────────────────────────────────────────────────── */
.iv-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-5);
  margin-bottom: var(--space-4);
}

.iv-control-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.iv-control-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-ink-muted);
  white-space: nowrap;
}

.iv-mode-select {
  width: auto;
  min-width: 170px;
}

.iv-shuffle-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-ink);
  cursor: pointer;
  user-select: none;
}
.iv-shuffle-toggle input { accent-color: var(--color-primary); width: 17px; height: 17px; }

#resetBtn { margin-left: auto; }

/* ── Inline reset confirm ───────────────────────────────────────────── */
.iv-confirm {
  margin-bottom: var(--space-4);
  border-left: 4px solid var(--color-terra);
}
.iv-confirm p { margin-bottom: var(--space-3); font-size: 14px; }
.iv-confirm-actions { display: flex; gap: var(--space-3); }

/* ── Progress row ───────────────────────────────────────────────────── */
.iv-progress-row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.iv-counter {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink-muted);
  white-space: nowrap;
}
.iv-progress-track {
  flex: 1;
  height: 6px;
  border-radius: 4px;
  background: var(--color-border);
  overflow: hidden;
}
.iv-progress-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 4px;
  width: 0%;
  transition: width 0.25s ease;
}

/* ── Flashcard scene ────────────────────────────────────────────────── */
.iv-scene {
  perspective: 1600px;
  margin-bottom: var(--space-6);
}

.iv-card {
  position: relative;
  height: 360px;
  cursor: pointer;
  outline: none;
}
.iv-card:focus-visible .iv-card-inner {
  box-shadow: 0 0 0 3px var(--color-primary-tint), var(--shadow-warm-lg);
}

.iv-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-lg);
  transition: transform 0.5s cubic-bezier(0.4, 0.2, 0.2, 1);
  transform-style: preserve-3d;
  box-shadow: var(--shadow-warm-lg);
}
.iv-card.flipped .iv-card-inner {
  transform: rotateY(180deg);
}

.iv-card-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-paper);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-8);
}

.iv-card-front {
  gap: var(--space-3);
}
.iv-card-pos {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}
.iv-card-word {
  font-family: var(--font-display);
  font-size: clamp(30px, 7vw, 44px);
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.01em;
  word-break: break-word;
}
.iv-flip-hint {
  position: absolute;
  bottom: var(--space-5);
  font-size: 11px;
  color: var(--color-ink-muted);
  letter-spacing: 0.03em;
}

.iv-card-back {
  transform: rotateY(180deg);
  gap: var(--space-4);
  justify-content: center;
}
.iv-card-def {
  font-size: 18px;
  line-height: 1.5;
  color: var(--color-ink);
  font-weight: 500;
}
.iv-card-example {
  font-style: italic;
  color: var(--color-ink-muted);
  font-size: 14px;
  line-height: 1.5;
}
.iv-card-synonyms {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: var(--space-2);
}
.iv-synonym-pill {
  background: var(--color-gold-tint);
  color: var(--color-gold);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
}

/* ── Grading row ────────────────────────────────────────────────────── */
.iv-grade-row {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
.iv-grade-btn {
  flex: 1;
  justify-content: center;
  padding: 14px 16px;
  font-size: 15px;
}
.iv-grade-icon { font-size: 16px; }
.iv-key-hint {
  margin-left: 4px;
  font-size: 11px;
  font-weight: 700;
  opacity: 0.55;
  border: 1px solid currentColor;
  border-radius: 4px;
  padding: 0 5px;
}

/* ── Prev / Next ────────────────────────────────────────────────────── */
.iv-nav-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
}
.iv-nav-row .bp-btn { flex: 1; justify-content: center; }

/* ── Session summary ───────────────────────────────────────────────── */
.iv-summary-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.iv-summary-actions .bp-btn { justify-content: center; }

/* ── Mobile ─────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .iv-wrap { padding-left: var(--space-4); padding-right: var(--space-4); padding-top: var(--space-5); }
  .iv-controls { padding: 14px 16px; gap: var(--space-3); }
  #resetBtn { margin-left: 0; }
  .iv-card { height: min(60vh, 420px); }
  .iv-card-face { padding: var(--space-6); }
  .iv-grade-btn { font-size: 14px; padding: 14px 10px; }
  .bp-page-title { font-size: 22px; }
}

@media (max-width: 360px) {
  .iv-card-word { font-size: 26px; }
}

/* ── Quiz mode ──────────────────────────────────────────────────────── */
.iv-quiz-setup-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
}
.iv-quiz-length-row {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}
.iv-quiz-length-btn { flex: 1; justify-content: center; }
.iv-quiz-length-btn.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
#quizStartBtn { width: 100%; justify-content: center; }
.iv-quiz-note {
  margin-top: var(--space-3);
  font-size: 13px;
  color: var(--color-terra);
  text-align: center;
}

.iv-quiz-card {
  text-align: center;
  margin-bottom: var(--space-5);
}
.iv-quiz-word {
  font-family: var(--font-display);
  font-size: clamp(26px, 6vw, 36px);
  font-weight: 700;
  color: var(--color-ink);
  margin: var(--space-2) 0 var(--space-1);
}
.iv-quiz-instruction {
  font-size: 13px;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-5);
}
.iv-quiz-choices {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}
.iv-quiz-choice {
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
  padding: 16px;
  min-height: 56px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink);
  background: var(--color-paper);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.iv-quiz-choice:hover:not(.iv-quiz-choice-disabled) {
  border-color: var(--color-primary);
  background: var(--color-primary-tint);
}
.iv-quiz-choice-num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.6;
}
.iv-quiz-choice-disabled { cursor: default; }
.iv-quiz-choice-correct {
  border-color: var(--color-primary);
  background: var(--color-primary-tint);
  color: var(--color-primary-dark);
}
.iv-quiz-choice-incorrect {
  border-color: var(--color-terra);
  background: #fbeae4;
  color: var(--color-terra);
}
.iv-quiz-next-row { display: flex; justify-content: flex-end; }
#quizNextBtn { min-width: 140px; justify-content: center; }

.iv-quiz-missed {
  margin: var(--space-5) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.iv-quiz-missed-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 10px 14px;
  background: var(--color-cream);
  border-radius: var(--radius-sm);
  font-size: 14px;
}
.iv-quiz-missed-row strong { color: var(--color-ink); }
.iv-quiz-missed-row span { color: var(--color-ink-muted); }
.iv-quiz-perfect {
  text-align: center;
  color: var(--color-primary);
  font-weight: 600;
}
#quizScoreHeadline { text-align: center; }

@media (max-width: 480px) {
  .iv-quiz-choices { grid-template-columns: 1fr; }
  .iv-quiz-choice { padding: 14px; min-height: 52px; }
  .iv-quiz-length-row { gap: var(--space-2); }
}

/* ── Parent view ────────────────────────────────────────────────────── */
.iv-parent-input { flex: 1; min-width: 0; }
.iv-parent-stats {
  display: flex;
  gap: var(--space-6);
  margin-bottom: var(--space-4);
}
.iv-parent-stat { flex: 1; text-align: center; }
.iv-parent-stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  color: var(--color-primary);
}
.iv-parent-stat-lbl {
  font-size: 11px;
  color: var(--color-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.iv-parent-bar { margin-bottom: var(--space-7); }
.iv-parent-quiz-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.iv-parent-quiz-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 10px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 13px;
}
.iv-parent-quiz-score { font-weight: 700; color: var(--color-ink); }
.iv-parent-quiz-mode { color: var(--color-ink-muted); }
.iv-parent-quiz-date { color: var(--color-ink-muted); }
.iv-parent-quiz-empty { color: var(--color-ink-muted); font-size: 14px; }

@media (max-width: 480px) {
  .iv-parent-stats { gap: var(--space-3); }
  .iv-parent-stat-num { font-size: 24px; }
}