/* Kanji writing drill card — all rules scoped under .write-card.
   Relies on the app's :root tokens (--primary, --surface-color, --border-color,
   --text-color, --text-muted, --success, --danger, --bg-color) with fallbacks. */

.write-card {
  --wc-primary: var(--primary, #2563eb);
  --wc-surface: var(--surface-color, #18181b);
  --wc-border: var(--border-color, #27272a);
  --wc-text: var(--text-color, #fafafa);
  --wc-muted: var(--text-muted, #a1a1aa);
  --wc-success: var(--success, #10b981);
  --wc-danger: var(--danger, #ef4444);
  --wc-warn: #f59e0b;
  --wc-paper: #fafafa;
  --wc-paper-guide: #d4d4d8;
  --wc-area-size: min(340px, 90vw);

  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 16px 12px 20px;
  color: var(--wc-text);
  box-sizing: border-box;
}

.write-card *,
.write-card *::before,
.write-card *::after {
  box-sizing: border-box;
}

/* --- prompt ------------------------------------------------------------- */

.write-card .write-prompt {
  width: 100%;
  max-width: 560px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.write-card .write-context {
  width: 100%;
  max-width: 560px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
}

.write-card .write-meanings {
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.01em;
}

.write-card .write-readings {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
}

.write-card .write-chip {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid var(--wc-border);
  background: var(--wc-surface);
  color: var(--wc-muted);
  font-size: 0.85rem;
  line-height: 1.5;
  font-family:
    "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic",
    Meiryo, sans-serif;
}

.write-card .write-chip.on {
  border-color: color-mix(in srgb, var(--wc-primary) 45%, var(--wc-border));
  color: var(--wc-text);
}

.write-card .write-meta {
  font-size: 0.75rem;
  color: var(--wc-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.write-card .write-examples {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 18px;
  font-size: 1.2rem;
  font-family:
    "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic",
    Meiryo, sans-serif;
}

.write-card .write-example {
  color: var(--wc-text);
  letter-spacing: 0.06em;
}

.write-card .write-sentence {
  margin-top: 2px;
  padding: 10px 14px;
  width: 100%;
  border: 1px solid var(--wc-border);
  background: var(--wc-surface);
  border-radius: 12px;
}

.write-card .write-sentence-ja {
  font-size: 1.15rem;
  line-height: 1.6;
  letter-spacing: 0.03em;
  font-family:
    "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic",
    Meiryo, sans-serif;
}

.write-card .write-sentence-en {
  margin-top: 4px;
  font-size: 0.9rem;
  color: var(--wc-muted);
  line-height: 1.4;
}

.write-card .write-speak {
  margin-left: 8px;
  padding: 0 4px;
  border: 0;
  background: transparent;
  color: var(--wc-muted);
  font-size: 0.95rem;
  cursor: pointer;
  vertical-align: middle;
  line-height: 1;
}

.write-card .write-speak:hover {
  color: var(--wc-text);
}

/* revealed kanji inside the blanked sentence / examples (after completion) */
.write-card .write-revealed {
  color: var(--wc-success);
  font-weight: 600;
}

/* --- practice loop bar ---------------------------------------------------- */

.write-card .write-practice-bar {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--wc-border);
  background: var(--wc-surface);
  font-size: 0.85rem;
  color: var(--wc-muted);
  letter-spacing: 0.02em;
  transition: border-color 0.2s ease;
}

.write-card.is-practicing .write-practice-bar {
  display: flex;
}

.write-card .write-practice-bar.is-rep-done {
  border-color: var(--wc-success);
  animation: write-rep-done 0.5s ease-out;
}

.write-card .write-practice-label {
  color: var(--wc-text);
  font-weight: 500;
}

.write-card .write-practice-dots {
  display: inline-flex;
  gap: 4px;
}

.write-card .write-practice-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--wc-border);
  transition: background-color 0.2s ease;
}

.write-card .write-practice-dot.is-current {
  background: var(--wc-primary);
}

.write-card .write-practice-dot.is-done {
  background: var(--wc-success);
}

@keyframes write-rep-done {
  0% {
    background: color-mix(in srgb, var(--wc-success) 30%, var(--wc-surface));
  }
  100% {
    background: var(--wc-surface);
  }
}

/* --- drawing stage ------------------------------------------------------ */

.write-card .write-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  width: 100%;
}

.write-card .write-area {
  position: relative;
  width: var(--wc-area-size);
  height: var(--wc-area-size);
  flex: 0 0 auto;
  border-radius: 16px;
  background: var(--wc-paper);
  border: 1px solid var(--wc-border);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  cursor: crosshair;
}

.write-card .write-area.is-done {
  cursor: default;
}

/* dashed crosshair guides */
.write-card .write-guides {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.write-card .write-guides::before,
.write-card .write-guides::after {
  content: "";
  position: absolute;
  border: 0 dashed var(--wc-paper-guide);
}

.write-card .write-guides::before {
  top: 0;
  bottom: 0;
  left: 50%;
  border-left-width: 1px;
}

.write-card .write-guides::after {
  left: 0;
  right: 0;
  top: 50%;
  border-top-width: 1px;
}

.write-card .write-target {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.write-card .write-target svg {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

/* rejected-stroke overlay (translucent red flash of what was drawn) */
.write-card .write-error {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 3;
}

/* calligraphy brush layers — only during practice "brush" reps */
.write-card .write-layer {
  position: absolute;
  top: 0;
  left: 0;
  display: none;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}

.write-card .write-ink {
  z-index: 1;
}

.write-card .write-ink-active {
  z-index: 2;
}

.write-card .write-hand {
  z-index: 4;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

.write-card .write-area.is-brush .write-layer {
  display: block;
}

.write-card .write-area.is-brush .write-target {
  pointer-events: none;
}

.write-card .write-overlay {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  text-align: center;
  font-size: 0.95rem;
  color: #71717a;
  background: var(--wc-paper);
  pointer-events: none;
  animation: write-pulse 1.4s ease-in-out infinite;
}

.write-card .write-overlay.is-error {
  color: var(--wc-danger);
  animation: none;
}

@keyframes write-pulse {
  0%,
  100% {
    opacity: 0.55;
  }
  50% {
    opacity: 1;
  }
}

/* revealed glyph (hidden until complete / give up) */
.write-card .write-reveal {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-width: 96px;
  padding: 8px 12px;
  border-radius: 16px;
  border: 1px solid var(--wc-border);
  background: var(--wc-surface);
  animation: write-fade-in 0.35s ease-out;
}

.write-card.is-complete .write-reveal {
  display: flex;
}

.write-card .write-reveal-glyph {
  font-size: 4.25rem;
  line-height: 1.1;
  font-weight: 500;
  font-family:
    "Hiragino Mincho ProN", "Hiragino Sans", "Noto Serif JP", "Noto Sans JP",
    "Yu Mincho", serif;
}

.write-card .write-reveal-readings {
  max-width: 120px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--wc-muted);
  line-height: 1.4;
  font-family:
    "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic",
    Meiryo, sans-serif;
}

@keyframes write-fade-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* --- status + actions ---------------------------------------------------- */

.write-card .write-status {
  min-height: 1.4em;
  font-size: 0.95rem;
  color: var(--wc-muted);
  text-align: center;
  transition: color 0.15s ease;
}

.write-card .write-status.is-ok {
  color: var(--wc-primary);
}

.write-card .write-status.is-warn {
  color: var(--wc-warn);
}

.write-card .write-status.is-success {
  color: var(--wc-success);
  font-weight: 600;
}

.write-card .write-status.is-danger {
  color: var(--wc-danger);
}

.write-card .write-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.write-card .btn-ghost {
  appearance: none;
  -webkit-appearance: none;
  padding: 8px 16px;
  border-radius: 10px;
  border: 1px solid var(--wc-border);
  background: transparent;
  color: var(--wc-text);
  font: inherit;
  font-size: 0.9rem;
  line-height: 1.2;
  cursor: pointer;
  transition:
    background-color 0.15s ease,
    border-color 0.15s ease,
    opacity 0.15s ease;
}

.write-card .btn-ghost:hover:not(:disabled) {
  background: var(--surface-hover, rgba(255, 255, 255, 0.06));
  border-color: color-mix(in srgb, var(--wc-primary) 50%, var(--wc-border));
}

.write-card .btn-ghost:focus-visible {
  outline: 2px solid var(--wc-primary);
  outline-offset: 2px;
}

.write-card .btn-ghost:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.write-card .write-btn-giveup:hover:not(:disabled),
.write-card .write-btn-stop:hover:not(:disabled) {
  border-color: var(--wc-danger);
  color: var(--wc-danger);
}

.write-card .write-btn-practice {
  border-color: color-mix(in srgb, var(--wc-primary) 45%, var(--wc-border));
}

/* during practice: hide Give up + Practice, show Stop practice */
.write-card .write-btn-stop {
  display: none;
}

.write-card.is-practicing .write-btn-stop {
  display: inline-block;
}

.write-card.is-practicing .write-btn-giveup,
.write-card.is-practicing .write-btn-practice {
  display: none;
}

/* --- feedback animation --------------------------------------------------- */

.write-card.write-shake .write-area {
  animation: write-shake 0.28s ease-in-out;
}

@keyframes write-shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-4px);
  }
  75% {
    transform: translateX(4px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .write-card .write-overlay,
  .write-card .write-reveal,
  .write-card .write-practice-bar.is-rep-done,
  .write-card.write-shake .write-area {
    animation: none;
  }
}

/* --- small screens -------------------------------------------------------- */

@media (max-width: 480px) {
  .write-card {
    padding: 4px 4px 12px;
    gap: 8px;
    --wc-area-size: min(340px, 92vw, 46vh);
  }

  .write-card .write-prompt {
    gap: 3px;
  }

  .write-card .write-meta {
    font-size: 0.68rem;
  }

  .write-card .write-readings {
    gap: 4px;
  }

  .write-card .write-chip {
    padding: 1px 8px;
    font-size: 0.8rem;
  }

  .write-card .write-sentence {
    padding: 8px 12px;
  }

  .write-card .write-sentence-ja {
    font-size: 1.05rem;
  }

  .write-card .write-examples {
    font-size: 1.05rem;
  }

  .write-card .write-stage {
    flex-direction: column;
    gap: 12px;
  }

  .write-card .write-meanings {
    font-size: 1.2rem;
  }

  .write-card .write-reveal {
    flex-direction: row;
    gap: 12px;
  }

  .write-card .write-reveal-glyph {
    font-size: 3rem;
  }

  .write-card .write-reveal-readings {
    max-width: none;
    text-align: left;
  }
}