/* ============================================================
   FLASHCARDS
   ============================================================ */
.cards-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 15px;
  border-bottom: 1px solid var(--bdr);
  background: var(--bg);
  flex-shrink: 0;
}

.cards-count {
  font-size: 12px;
  font-weight: 700;
  color: var(--gold);
  background: rgba(232, 160, 32, 0.1);
  border: 1px solid rgba(232, 160, 32, 0.25);
  padding: 4px 11px;
  border-radius: 20px;
}

.filter-btn {
  background: var(--bdr);
  border: none;
  border-radius: var(--radius-sm);
  padding: 7px 11px;
  font-size: 12px;
  font-weight: 700;
  color: var(--txt);
  cursor: pointer;
  min-height: var(--touch-min);
}

.card-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 1200px;
  position: relative;
  padding: 6px 10px 4px;
  gap: 8px;
}

.card-nav {
  background: var(--card);
  border: 1px solid var(--bdr);
  color: var(--muted);
  font-size: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: color 0.2s, border-color 0.2s, opacity 0.2s;
  z-index: 2;
}

.card-nav:hover {
  color: var(--gold);
  border-color: var(--gold);
}

.card-nav:active {
  transform: scale(0.92);
}

@media (max-width: 480px) {
  .card-nav { width: 36px; height: 36px; font-size: 26px; }
}

.card-wrap {
  position: relative;
  width: 100%;
  max-width: 350px;
  height: 95%;
  max-height: 580px;
}

.ghost-card {
  position: absolute;
  border-radius: var(--radius-lg);
  background: #3a2e20;
  pointer-events: none;
}

.ghost-card--2 {
  width: calc(100% - 18px);
  left: 9px;
  height: calc(100% - 14px);
  top: 9px;
  opacity: 0.3;
  transform: scale(0.95);
}

.ghost-card--1 {
  width: calc(100% - 9px);
  left: 4px;
  height: calc(100% - 7px);
  top: 5px;
  opacity: 0.18;
  transform: scale(0.97);
}

.flashcard {
  position: absolute;
  inset: 0;
  cursor: pointer;
  transform-style: preserve-3d;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s;
  user-select: none;
}
.flashcard.slide-out {
  transition: transform 0.3s ease-in, opacity 0.3s;
  opacity: 0;
}
.flashcard.slide-in {
  animation: slideIn 0.3s ease-out;
}
@keyframes slideIn {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.flashcard.flipped {
  transform: rotateY(180deg);
}

.card-face {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  overflow: hidden;
}

.card-front {
  background: linear-gradient(145deg, #3a2e20, #2a1f14);
  border: 1px solid #4a3d2e;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 26px 20px;
  text-align: center;
  box-shadow: 0 8px 32px rgba(0,0,0,.2);
}

.card-category-pos {
  position: absolute;
  top: 16px;
  display: flex;
  justify-content: center;
  width: 100%;
}

.card-cat-pill {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.card-verb {
  font-family: "Lora", serif;
  font-size: 40px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 10px;
  color: #f0c840;
}

.card-meaning {
  font-size: 24px;
  color: #ffffff;
  font-style: italic;
  font-family: "Lora", serif;
  margin-bottom: 18px;
}

.card-tap-hint {
  position: absolute;
  bottom: 15px;
  font-size: 13px;
  color: #b8a888;
}

.card-back {
  background: linear-gradient(145deg, #2a3328, #1e2820);
  border: 1px solid #3a4a38;
  color: #d8e8d0;
  transform: rotateY(180deg);
  padding: 14px 14px 12px;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.card-back-verb {
  font-family: "Lora", serif;
  font-size: 22px;
  font-weight: 700;
  color: #f0c840;
  text-align: center;
  margin-bottom: 2px;
}

.card-back-meaning {
  font-size: 18px;
  color: #ffffff;
  font-style: italic;
  text-align: center;
  margin-bottom: 10px;
}

.conj-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 5px;
  margin-bottom: 9px;
}

.conj-cell {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 7px 8px;
}

.conj-cell-label {
  font-size: 10px;
  color: #c0d0b8;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.conj-cell-word {
  font-family: "Lora", serif;
  font-size: 15px;
  font-weight: 700;
  color: #f0c840 !important;
}

.tense-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 8px;
}

.tense-tab {
  flex: 1;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 7px;
  padding: 5px 4px;
  font-size: 10px;
  font-weight: 700;
  color: #b0c0a8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.tense-tab.active {
  background: rgba(240, 200, 64, 0.15);
  border-color: rgba(240, 200, 64, 0.35);
  color: var(--gold);
}

.card-examples-label {
  font-size: 9px;
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 5px;
}

.card-example-item {
  background: rgba(240, 165, 0, 0.06);
  border: 1px solid rgba(240, 165, 0, 0.15);
  border-radius: 7px;
  padding: 7px 9px;
  margin-bottom: 5px;
}

.card-example-quechua {
  font-family: "Lora", serif;
  font-size: 13px;
  font-weight: 600;
  color: #f0c840;
  margin-bottom: 2px;
}

.card-example-spanish {
  font-size: 12px;
  color: #ffffff;
  font-style: italic;
}

.card-example-suffix {
  font-size: 10px;
  color: #c0d0b8;
  margin-top: 4px;
  padding-top: 4px;
  border-top: 1px solid rgba(240, 165, 0, 0.15);
  letter-spacing: 0.01em;
}

.card-note {
  background: rgba(129, 140, 248, 0.07);
  border: 1px solid rgba(129, 140, 248, 0.15);
  border-radius: 7px;
  padding: 7px 9px;
  font-size: 11px;
  color: var(--muted);
  line-height: 1.5;
}

/* Swipe indicators */
.swipe-right, .swipe-left {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  font-weight: 700;
  opacity: 0;
  transition: opacity 0.15s;
  pointer-events: none;
  padding: 6px 11px;
  border-radius: var(--radius-sm);
}

.swipe-right {
  right: 8px;
  background: rgba(34, 211, 165, 0.15);
  color: var(--green);
  border: 1px solid rgba(34, 211, 165, 0.3);
}

.swipe-left {
  left: 8px;
  background: rgba(251, 113, 133, 0.15);
  color: var(--rose);
  border: 1px solid rgba(251, 113, 133, 0.3);
}

/* Card actions */
.card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 18px 12px;
  flex-shrink: 0;
  gap: 11px;
}

.action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
}

.action-btn:active {
  transform: scale(0.9);
}

.action-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 21px;
  border: 2px solid;
}

.action-skip .action-icon {
  background: rgba(196, 75, 92, 0.06);
  border-color: rgba(251, 113, 133, 0.4);
}

.action-skip span {
  font-size: 11px;
  font-weight: 600;
  color: var(--rose);
}

.action-learned .action-icon {
  background: rgba(45, 134, 89, 0.06);
  border-color: rgba(34, 211, 165, 0.4);
}

.action-learned span {
  font-size: 11px;
  font-weight: 600;
  color: var(--green);
}

.action-flip {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--gold);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  border: none;
  cursor: pointer;
  min-height: var(--touch-min);
}

.action-flip:active {
  opacity: 0.85;
}

.action-flip span {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
}

/* Empty deck state */
.card-empty {
  flex: 1;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 36px;
  text-align: center;
}

.card-empty.active {
  display: flex;
}

.card-empty-symbol {
  font-size: 56px;
  margin-bottom: 12px;
}

.card-empty-title {
  font-family: "Lora", serif;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 7px;
}

.card-empty-text {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 22px;
}

.reset-btn {
  padding: 13px 26px;
  border-radius: 12px;
  border: none;
  background: var(--gold);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  min-height: var(--touch-min);
}

/* Filter panel */
.filter-panel {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  z-index: 80;
  display: none;
  align-items: flex-end;
}

.filter-panel.active {
  display: flex;
}

.filter-sheet {
  width: 100%;
  background: #fff;
  border-radius: 22px 22px 0 0;
  padding: 18px 18px 36px;
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.1);
}

.filter-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 12px;
  text-align: center;
  color: var(--muted);
}

.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 15px;
}

.filter-tag {
  padding: 7px 14px;
  border-radius: 20px;
  border: 1px solid var(--bdr);
  background: transparent;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  min-height: var(--touch-min);
}

.filter-tag.active {
  border-color: var(--gold);
  background: rgba(232, 160, 32, 0.1);
  color: var(--gold);
}

.filter-apply {
  width: 100%;
  padding: 13px;
  border-radius: 11px;
  border: none;
  background: var(--gold);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  min-height: var(--touch-min);
}

/* Toast */
.toast {
  position: fixed;
  top: 70px;
  left: 50%;
  transform: translateX(-50%) translateY(-12px);
  padding: 8px 15px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 700;
  opacity: 0;
  transition: all var(--transition);
  z-index: 200;
  white-space: nowrap;
}

.toast.active {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}