/* ============================================================
   SeaScribe — Dictation Cards
   ============================================================ */

.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
  transition: grid-template-columns 0.35s var(--ease);
}

.card-grid.grid-morph {
  animation: gridPulse 0.35s var(--ease);
}

.card-grid.layout-morph {
  animation: layoutMorph 0.28s var(--ease);
}

@keyframes layoutMorph {
  0%   { opacity: 0.5; transform: scale(0.96); }
  100% { opacity: 1; transform: scale(1); }
}

@keyframes gridPulse {
  0%   { opacity: 1; transform: scale(1); }
  40%  { opacity: 0.75; transform: scale(0.985); }
  100% { opacity: 1; transform: scale(1); }
}

/* list mode */
.card-grid.list {
  display: block;
  column-gap: 12px;
}
.card-grid.list .card {
  break-inside: avoid;
  margin-bottom: 8px;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 10px;
  padding: 10px 14px;
}
.card-grid.list .card-num { flex-shrink: 0; min-width: 1.8em; }
.card-grid.list .card-prompt { flex: 1; min-width: 0; }
.card-grid.list .card-answers { flex-basis: 100%; }
.card-grid.list .card-answers:not(.visible) { display: none; }

.card {
  background: var(--glass-bg); /* 半透明（不 blur：卡片数量多，保证性能） */
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 18px 16px;
  display: flex; flex-direction: column; gap: 8px;
  animation: fadeUp 0.45s var(--spring) both;
  transition: background-color var(--dur-slow), border-color var(--dur-slow), transform 0.25s var(--spring), box-shadow 0.25s var(--spring);
  min-width: 0;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
[data-theme="dark"] .card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.4); }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.card-num { font-size: calc(1.3rem * var(--card-font-scale, 1)); color: #666; font-weight: 800; }
[data-theme="dark"] .card-num { color: #aaa; }

.card-prompt {
  display: flex; align-items: baseline; gap: 6px;
  font-size: calc(1em * var(--card-font-scale, 1));
}

.card-symbol {
  font-size: 1.6em; font-weight: 700;
  letter-spacing: 0.02em; line-height: 1;
}

.card-cn { font-size: 0.8em; color: var(--muted); font-weight: 400; }

/* ---- answers ---- */
.card-answers {
  padding-top: 4px;
  opacity: 0; max-height: 0; overflow: hidden;
  transition: all 0.4s var(--spring);
  font-size: calc(0.9em * var(--card-font-scale, 1));
}
.card-answers.visible {
  opacity: 1; max-height: 300px; overflow: visible;
}

.a-line {
  display: flex; align-items: baseline; gap: 6px;
  margin-bottom: 2px; flex-wrap: wrap;
}
.a-label {
  font-size: 0.85em; color: var(--text); opacity: 0.75;
  font-weight: 600; min-width: 3.2em; flex-shrink: 0;
}
.a-val { font-weight: 600; white-space: pre-wrap; word-break: break-word; }
.a-val sup { font-size: 0.65em; color: var(--text); opacity: 0.75; }
.a-val.orbital {
  font-family: "SF Mono", "Cascadia Code", "Fira Code", "Consolas", "Microsoft YaHei", monospace;
  font-size: 0.88em; letter-spacing: 0.03em;
  background: var(--orb-bg);
  padding: 1px 5px; border-radius: var(--radius-xs);
  white-space: normal; word-break: break-all; line-height: 1.5;
}