/* ============================================
   CARDS.CSS — Glassmorphic Word Cards
   Frosted-glass panels with warm accents
   ============================================ */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

/* ===== CARD WRAPPER ===== */
.card-wrapper {
  perspective: 1200px;
  height: 230px;
}

/* ===== WORD CARD ===== */
.word-card {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(0.4, 0.2, 0.2, 1);
  cursor: pointer;
  outline: none;
}

.word-card.flipped {
  transform: rotateY(180deg);
}

.card-front.tilting {
  transition: none;
}

/* ===== CARD FACES ===== */
.card-front,
.card-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius);
  overflow: hidden;
}

/* ===== FRONT FACE ===== */
.card-front {
  background: var(--bg-glass);
  border: 1px solid var(--bg-glass-border);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all 0.5s var(--ease);
}

/* Top accent — colored line per category */
.card-front::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.card-wrapper:hover .card-front {
  background: var(--bg-glass-hover);
  border-color: var(--bg-glass-border-hover);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.card-wrapper:hover .card-front::before {
  opacity: 1;
}

/* Category accent colors */
.card-front[data-category="archaism"]::before {
  background: var(--accent-red);
}

.card-front[data-category="historicism"]::before {
  background: var(--accent);
}

.card-front[data-category="dialectism"]::before {
  background: var(--accent-blue);
}

/* ===== CARD CONTENT ===== */
.card-content {
  padding: 16px 18px 10px;
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  min-height: 0;
}

.card-bukvica {
  position: absolute;
  top: 4px; right: 10px;
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 900;
  color: var(--accent);
  opacity: 0.04;
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.word-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
  transition: color 0.3s ease;
}

.card-wrapper:hover .word-title {
  color: var(--accent);
}

.word-origin {
  font-family: var(--font-elegant);
  font-size: 0.7rem;
  color: var(--text-faint);
  font-style: italic;
  margin-bottom: 6px;
}

.word-meaning {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
  flex: 1;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

/* Card footer */
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 18px;
  border-top: 1px solid var(--bg-glass-border);
}

.card-category-badge {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: var(--radius-xs);
}

.badge-archaism {
  color: var(--accent-red);
  background: var(--accent-red-dim);
}

.badge-historicism {
  color: var(--accent);
  background: var(--accent-dim);
}

.badge-dialectism {
  color: var(--accent-blue);
  background: var(--accent-blue-dim);
}

.card-flip-hint {
  font-size: 0.7rem;
  color: var(--text-faint);
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0;
  transform: translateX(6px);
  transition: all 0.4s var(--ease);
}

.card-wrapper:hover .card-flip-hint {
  opacity: 1;
  transform: translateX(0);
}

.card-flip-hint svg {
  width: 12px; height: 12px;
}

/* ===== BACK FACE ===== */
.card-back {
  transform: rotateY(180deg);
  background: var(--bg-glass-strong);
  backdrop-filter: blur(var(--blur-strong));
  -webkit-backdrop-filter: blur(var(--blur-strong));
  border: 1px solid var(--bg-glass-border);
  box-shadow: var(--shadow-md);
  padding: 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  color: var(--text-primary);

  /* Hide scrollbar but keep scroll */
  scrollbar-width: none;      /* Firefox */
  -ms-overflow-style: none;   /* IE/Edge */
}

.card-back::-webkit-scrollbar {
  display: none;              /* Chrome/Safari */
}

.card-back-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.card-back-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 12px;
  margin-bottom: 4px;
}

.card-back-label:first-of-type {
  margin-top: 6px;
}

.card-back-text {
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

.card-back-example {
  font-family: var(--font-elegant);
  font-style: italic;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--text-secondary);
  padding-left: 12px;
  border-left: 2px solid var(--accent);
  opacity: 0.8;
}

.card-back-footer {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--bg-glass-border);
}

.card-back-source {
  font-size: 0.72rem;
  color: var(--text-faint);
}