/* ─────────────────────────────────────────────────────────────
   Pair Feed Cards  –  Shared Styles
   ───────────────────────────────────────────────────────────── */

/* ── Card shell ── */
.pair-card {
  width: 100%;
  max-width: 380px;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-card);
}

/* ── Header (sits below image) ── */
.pair-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px 10px;
}
.pair-lang-pill {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.09em;
  color: #6B6556;
  font-family: var(--font-ui);
  text-transform: uppercase;
}
.pair-points-pill {
  color: var(--gold);
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font-ui);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Thin divider below header */
.pair-header-divider {
  height: 0.5px;
  background: #E0DDD5;
  margin: 0 20px;
}

/* ── Section labels ── */
.pair-section-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: #A89F8C;
  font-family: var(--font-ui);
  margin-bottom: 8px;
}

/* ── Icon buttons (TTS / translate) ── */
.pair-icon-btn {
  background: #F0EDE3;
  border: 0.5px solid #D8D3C5;
  border-radius: 10px;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  transition: background 0.15s, color 0.15s;
  color: #7A6E55;
  -webkit-user-select: none;
  user-select: none;
}
.pair-icon-btn:hover  { background: #E0DAC8; }
.pair-icon-btn.active { background: #C4A85A22; color: #B07840; }

/* Hold-to-translate button */
.pair-hold-wrap {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
  border-radius: 10px;
  overflow: visible;
}

/* Ring fill animation — 2 seconds */
@keyframes holdRing {
  from { stroke-dashoffset: 100.53; }
  to   { stroke-dashoffset: 0; }
}

/* ── Image area ── */
.pair-image-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  cursor: default;
  background: #1a1a1a;
}
.pair-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: filter 0.28s ease;
}
.pair-image-wrap.chip-active .pair-image,
.pair-image-wrap.chip-active .pair-image-placeholder {
  filter: brightness(0.45) saturate(0.7);
}

.pair-image-placeholder {
  width: 100%;
  height: 100%;
  min-height: 220px;
  background: linear-gradient(145deg, #EDE0CE 0%, #C8A882 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  transition: filter 0.28s ease;
}

/* Overlay badge that appears above the image when a chip is active */
.pair-chip-highlight {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  animation: chipFadeIn 0.18s ease;
}
@keyframes chipFadeIn {
  from { opacity: 0; transform: scale(0.88); }
  to   { opacity: 1; transform: scale(1);    }
}
.pair-chip-highlight-badge {
  background: rgba(255, 252, 248, 0.97);
  border-radius: 18px;
  padding: 16px 28px 14px;
  text-align: center;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.28);
  border: 1px solid rgba(200, 160, 100, 0.3);
}
.pair-chip-highlight-target {
  display: block;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: #3A2515;
  line-height: 1.2;
  margin-bottom: 5px;
}
.pair-chip-highlight-native {
  display: block;
  font-family: var(--font-ui);
  font-size: 13px;
  color: #9A7D60;
  font-weight: 600;
}

/* Object-chip SVG bbox overlay */
.pair-bbox-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  animation: chipFadeIn 0.2s ease;
}

/* ── Card body ── */
.pair-card-body {
  padding: 18px 20px 22px;
}

/* ── Vocabulary chips section ── */
.pair-vocab-section {
  margin-top: 16px;
}
.pair-vocab-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.pair-vocab-word {
  padding: 6px 14px;
  background: #F0EDE3;
  border-radius: 30px;
  border: 0.5px solid #D8D3C5;
  font-family: var(--font-display);
  font-size: 13px;
  font-style: italic;
  color: #7A5C2E;
  cursor: default;
}

/* Sentence action row (sentence + icon buttons) */
.pair-sentence-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.pair-sentence-text {
  flex: 1;
}

/* Clickable sentence — tap to play audio */
.pair-sentence-clickable {
  cursor: pointer;
  user-select: none;
}

/* Word chips inside sentences — underline italic style */
.pair-word-chip {
  display: inline;
  font-style: italic;
  color: #7A5C2E;
  text-decoration: underline;
  text-decoration-color: #C4A85A;
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
  cursor: pointer;
  transition: color 0.15s, text-decoration-color 0.15s;
  user-select: none;
  background: none;
  border: none;
  padding: 0;
  border-radius: 0;
  font-weight: inherit;
  vertical-align: baseline;
}
.pair-word-chip:hover {
  color: #5C3D22;
  text-decoration-color: #B07840;
}
.pair-word-chip.active {
  color: #B07840;
  text-decoration-color: #B07840;
  text-decoration-thickness: 2px;
}

/* Sentence text (text-type cards) */
.pair-sentence {
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.7;
  color: #3A2515;
  margin-bottom: 20px;
}

/* Question text */
.pair-question {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.65;
  color: #3A2515;
  margin-bottom: 16px;
}

/* Hint — native language translation */
.pair-hint {
  font-family: var(--font-ui);
  font-size: 13px;
  color: #A08868;
  line-height: 1.5;
  margin: -8px 0 16px;
}

/* ── Buttons ── */
.pair-btn-row {
  display: flex;
  gap: 10px;
}
.pair-btn {
  flex: 1;
  padding: 14px 10px;
  border-radius: 13px;
  border: none;
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.01em;
  transition: transform 0.1s, filter 0.15s, opacity 0.15s;
}
.pair-btn:hover:not(:disabled)  { filter: brightness(1.07); }
.pair-btn:active:not(:disabled) { transform: scale(0.96); }
.pair-btn:disabled { opacity: 0.75; cursor: default; }

.pair-btn-primary {
  background: var(--accent-strong);
  color: #F5EDE0;
}
.pair-btn-locked {
  background: #E0DDD5;
  color: #B0A898;
  cursor: not-allowed;
}
.pair-btn-yes {
  background: var(--success);
  color: #fff;
}
.pair-btn-no {
  background: var(--danger);
  color: #fff;
}
.pair-btn-correct { background: var(--success); color: #fff; }
.pair-btn-wrong   { background: var(--danger); color: #fff; }

/* ── Word option buttons ── */
.pair-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 6px;
}
.pair-option-btn {
  padding: 11px 18px;
  border-radius: 11px;
  border: 1.5px solid #DDD0BF;
  background: #FDFAF6;
  color: #3A2515;
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.1s, background 0.15s, border-color 0.15s, color 0.15s;
}
.pair-option-btn:hover:not(:disabled) {
  background: #FFF0E0;
  border-color: #C8956A;
}
.pair-option-btn:active:not(:disabled) { transform: scale(0.95); }
.pair-option-btn.selected { background: #FFF0DC; border-color: #C4A85A; color: #5C3D22; }
.pair-option-btn.correct  { background: var(--success); color: #fff; border-color: var(--success); }
.pair-option-btn.wrong    { background: var(--danger); color: #fff; border-color: var(--danger); }
.pair-option-btn:disabled { cursor: default; }

/* ── Feedback ── */
.pair-feedback {
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 700;
  padding: 12px 0 2px;
  color: #3A2515;
}
.pair-feedback.correct { color: var(--success); }
.pair-feedback.wrong   { color: var(--danger); }