/* Flashcards: the deck library and the study screen. Everything is drawn from
   the vault's theme tokens so all twenty palettes style it without a fork. */

.fc-page .fc-tools {
  display: grid;
  gap: 10px;
  margin: 0 0 22px;
}

.fc-query {
  width: 100%;
  max-width: 460px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  font-size: 14px;
}

.fc-query:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.fc-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.fc-domains .chip b {
  margin-left: 5px;
  color: var(--text-faint);
  font-weight: 600;
  font-size: 11px;
}

.fc-due {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--panel-2);
  color: var(--text-dim);
  font-size: 12.5px;
  white-space: nowrap;
}

/* deck grid ------------------------------------------------------------ */

.fc-decks {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(268px, 1fr));
  gap: 14px;
}

.fc-deck {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.fc-kind {
  padding: 3px 9px;
  border: 1px solid var(--border-soft);
  border-radius: 20px;
  background: var(--panel-3);
  color: var(--text-dim);
  font-size: 11px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.fc-deck-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 17.5px;
  line-height: 1.28;
  letter-spacing: -0.01em;
}

.fc-deck-title a {
  color: var(--text);
  text-decoration: none;
}

.fc-deck-title a:hover {
  color: var(--accent);
}

.fc-deck.is-read .fc-kind,
.fc-done .fc-kind {
  border-color: var(--accent-soft);
  color: var(--accent);
}

.fc-meter {
  height: 5px;
  border-radius: 20px;
  background: var(--panel-3);
  overflow: hidden;
}

.fc-meter span {
  display: block;
  height: 100%;
  border-radius: 20px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.35s var(--ease);
}

.fc-deck-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: auto;
}

.fc-deck-note {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-faint);
  font-size: 12px;
  text-decoration: none;
}

.fc-deck-note:hover {
  color: var(--link);
}

/* study ----------------------------------------------------------------- */

.fc-study .hero-actions {
  align-items: center;
}

.fc-progress {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text-dim);
  font-size: 12.5px;
}

.fc-progress b {
  color: var(--text);
}

.fc-box,
.fc-session {
  padding: 3px 9px;
  border: 1px solid var(--border-soft);
  border-radius: 20px;
  background: var(--panel-2);
  font-size: 11.5px;
}

.fc-session {
  margin-left: auto;
}

.fc-track {
  height: 4px;
  margin: 8px 0 18px;
  border-radius: 20px;
  background: var(--panel-3);
  overflow: hidden;
}

.fc-track span {
  display: block;
  height: 100%;
  background: var(--accent);
  transition: width 0.28s var(--ease);
}

.fc-stage {
  display: grid;
  gap: 16px;
  max-width: 820px;
}

.fc-card {
  display: grid;
  gap: 16px;
  padding: 30px clamp(20px, 4vw, 38px);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  background:
    radial-gradient(700px 240px at 0% 0%, var(--accent-soft), transparent 70%),
    var(--panel);
  box-shadow: var(--shadow-soft);
  min-height: 230px;
  align-content: start;
}

.fc-question {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(19px, 2.4vw, 25px);
  line-height: 1.34;
  color: var(--text);
}

.fc-answer {
  padding-top: 14px;
  border-top: 1px dashed var(--border);
  color: var(--text-dim);
  font-size: 15.5px;
  line-height: 1.62;
  animation: fc-rise 0.22s var(--ease) both;
}

.fc-answer p:first-child {
  margin-top: 0;
}

.fc-answer p:last-child {
  margin-bottom: 0;
}

@keyframes fc-rise {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.fc-reveal {
  justify-self: start;
  align-self: end;
  margin-top: auto;
}

.fc-reveal kbd,
.fc-grades kbd {
  margin-left: 8px;
  padding: 1px 6px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--panel-3);
  font-family: var(--font-mono);
  font-size: 11px;
}

.fc-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: auto;
}

.fc-src {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  color: var(--text-faint);
  font-size: 12px;
  text-decoration: none;
}

.fc-src:hover {
  color: var(--link);
}

.fc-grades {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.fc-grades .btn {
  flex: 1 1 120px;
  justify-content: center;
}

.fc-done-card {
  display: grid;
  gap: 12px;
  padding: 30px clamp(20px, 4vw, 38px);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  background: var(--panel);
  max-width: 640px;
}

.fc-done-card h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 26px;
}

.fc-done-meta {
  color: var(--text-dim);
  margin: 0;
}

@media (max-width: 960px) {
  .fc-decks {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }
  .fc-card {
    padding: 22px 20px;
    min-height: 200px;
  }
  .fc-grades .btn {
    flex: 1 1 84px;
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .fc-answer,
  .fc-meter span,
  .fc-track span {
    animation: none;
    transition: none;
  }
}