/* ═══════════════════════════════════════════════════
   KANKEN — 漢字検定 Panel
═══════════════════════════════════════════════════ */

/* ── Layout ─────────────────────────────────────── */
#panel-kanken {
  max-width: 680px;
  margin: 0 auto;
}
#panel-kanken h2 {
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: var(--stroke) solid var(--border);
}

/* ── Setup ──────────────────────────────────────── */
.kk-setup-inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.kk-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 8px;
  display: block;
}

.kk-level-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.kk-level-row .kk-label { margin-bottom: 0; white-space: nowrap; }

.kk-select {
  padding: 8px 14px;
  border: var(--stroke) solid var(--border-strong);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--ink);
  font-family: 'Funnel Display', sans-serif;
  font-size: 0.95rem;
  cursor: pointer;
  min-width: 120px;
}
.kk-select:focus { outline: none; box-shadow: var(--ring) !important; }

/* Section grid */
.kk-section-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.kk-section-btn {
  padding: 10px 18px;
  border: var(--stroke) solid var(--border-strong);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--ink);
  font-family: 'Funnel Display', sans-serif;
  font-size: 0.9rem;
  cursor: pointer;
  opacity: 0.65;
  transition: opacity 120ms ease, border-color 120ms ease, background 120ms ease;
}
.kk-section-btn:hover { opacity: 1; }
.kk-section-btn.active {
  opacity: 1;
  border-color: var(--accent-stroke);
  color: var(--accent-stroke);
  background: color-mix(in srgb, var(--accent-stroke) 8%, transparent);
}

.kk-section-jp {
  font-family: 'Kosugi Maru', sans-serif;
  font-size: 1rem;
}

.kk-start-btn {
  align-self: flex-start;
  padding: 12px 28px;
  font-size: 1rem;
}

.kk-hint {
  margin: 0;
  opacity: 0.6;
}

/* ── Quiz ───────────────────────────────────────── */
#kk-quiz { display: none; }
#kk-quiz.active { display: block; }

.kk-quiz-inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Progress bar */
.kk-progress-bar {
  height: 3px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}
.kk-progress-fill {
  height: 100%;
  background: var(--accent-stroke);
  border-radius: 99px;
  transition: width 300ms ease;
}

/* Counter + score */
.kk-counter {
  font-size: 0.8rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 12px;
}
.kk-score-inline { display: flex; gap: 10px; margin-left: auto; }
.kk-correct-count { color: var(--accent2-stroke); font-weight: 600; }
.kk-wrong-count   { color: var(--accent-stroke);  font-weight: 600; opacity: 0.8; }

/* Section tag */
.kk-section-tag {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

/* Question card */
.kk-question-card {
  border: var(--stroke) solid var(--border);
  border-radius: var(--radius-box);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
  text-align: center;
  min-height: 280px;
  justify-content: center;
  animation: panelIn 160ms ease both;
}

.kk-q-prompt {
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.kk-q-kanji {
  font-family: 'Kosugi Maru', sans-serif;
  font-size: 4.5rem;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.kk-q-sub {
  font-family: 'Kosugi Maru', sans-serif;
  font-size: 1.4rem;
  opacity: 0.7;
}

.kk-q-loading {
  font-size: 0.82rem;
  color: var(--muted);
  opacity: 0.6;
}

/* Answer area */
.kk-answer-area {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-top: 10px;
}

/* Reveal button */
.kk-reveal-btn {
  padding: 10px 24px;
  font-size: 0.9rem;
}

/* Reveal content */
.kk-reveal-content {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  animation: panelIn 160ms ease both;
}

/* Readings group */
.kk-readings-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.kk-reading-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.kk-read-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  min-width: 16px;
}

.kk-read-chip {
  font-family: 'Kosugi Maru', sans-serif;
  font-size: 1rem;
  padding: 4px 12px;
  border: var(--stroke) solid var(--border-strong);
  border-radius: var(--radius-pill);
  line-height: 1.4;
}

/* Kaki (writing) answer */
.kk-kaki-answer {
  font-family: 'Kosugi Maru', sans-serif;
  font-size: 3.5rem;
  line-height: 1.2;
  color: var(--accent-stroke);
}

/* Bushu answer */
.kk-bushu-answer {
  font-family: 'Kosugi Maru', sans-serif;
  font-size: 3rem;
  color: var(--accent-stroke);
}

/* Bushu radical display */
.kk-bushu-radical-display {
  text-align: center;
  font-size: 1rem;
  opacity: 0.7;
  margin-bottom: 12px;
}
.kk-bushu-char {
  font-family: 'Kosugi Maru', sans-serif;
  font-size: 2.2rem;
  font-weight: 600;
  vertical-align: middle;
  margin-left: 6px;
  opacity: 1;
  color: var(--ink);
}

/* Okurigana answer */
.kk-okurigana-answer {
  font-family: 'Kosugi Maru', sans-serif;
  font-size: 2.4rem;
}
.kk-okuri-part {
  color: var(--accent-stroke);
  border-bottom: 2px solid var(--accent-stroke);
}

/* Yoji answer */
.kk-yoji-answer {
  font-family: 'Kosugi Maru', sans-serif;
  font-size: 2.4rem;
  letter-spacing: 0.08em;
  color: var(--accent-stroke);
}
.kk-yoji-reading {
  font-family: 'Kosugi Maru', sans-serif;
  font-size: 1rem;
  color: var(--muted);
}
.kk-yoji-meaning {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.6;
  max-width: 400px;
  text-align: center;
}

/* Self-check row */
.kk-self-check {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--muted);
  padding-top: 4px;
}
.kk-correct-btn {
  border-color: var(--accent2-stroke) !important;
  color: var(--accent2-stroke) !important;
}
.kk-correct-btn:hover {
  background: color-mix(in srgb, var(--accent2-stroke) 10%, transparent) !important;
}
.kk-wrong-btn {
  border-color: color-mix(in srgb, var(--accent-stroke) 70%, var(--ink)) !important;
  color: color-mix(in srgb, var(--accent-stroke) 70%, var(--ink)) !important;
}
.kk-wrong-btn:hover {
  background: color-mix(in srgb, var(--accent-stroke) 10%, transparent) !important;
}

/* Multiple choice (kakusuu) */
.kk-choices {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.kk-choice-btn {
  min-width: 70px;
  padding: 12px 20px;
  font-family: 'Kosugi Maru', sans-serif;
  font-size: 1.1rem;
  transition: background 150ms ease, border-color 150ms ease;
}
.kk-choice-btn:hover:not(:disabled) {
  border-color: var(--accent-stroke);
  color: var(--accent-stroke);
}
.kk-choice-correct {
  border-color: var(--accent2-stroke) !important;
  color: var(--accent2-stroke) !important;
  background: color-mix(in srgb, var(--accent2-stroke) 10%, transparent) !important;
}
.kk-choice-wrong {
  border-color: var(--accent-stroke) !important;
  color: var(--accent-stroke) !important;
  background: color-mix(in srgb, var(--accent-stroke) 8%, transparent) !important;
}

/* ── Results ────────────────────────────────────── */
.kk-results-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 32px 16px;
  text-align: center;
  animation: panelIn 200ms ease both;
}

.kk-results-grade {
  font-size: 1.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 8px 24px;
  border-radius: var(--radius-pill);
  border: var(--stroke-strong) solid;
}
.kk-pass  { border-color: var(--accent2-stroke); color: var(--accent2-stroke); }
.kk-near  { border-color: color-mix(in srgb, var(--accent-stroke) 60%, var(--accent2-stroke)); 
             color: color-mix(in srgb, var(--accent-stroke) 60%, var(--accent2-stroke)); }
.kk-fail  { border-color: var(--accent-stroke); color: var(--accent-stroke); }

.kk-results-score {
  font-size: 3.5rem;
  font-weight: 600;
  line-height: 1;
  font-family: 'Funnel Display', sans-serif;
}
.kk-results-denom {
  font-size: 1.6rem;
  opacity: 0.5;
}
.kk-results-pct {
  font-size: 1.2rem;
  color: var(--muted);
}
.kk-results-detail {
  display: flex;
  gap: 16px;
  font-size: 0.9rem;
}

/* Wrong items */
.kk-wrong-list {
  width: 100%;
  max-width: 400px;
  padding: 16px;
  border: var(--stroke) solid var(--border);
  border-radius: var(--radius-box);
  margin-top: 8px;
}
.kk-wrong-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}
.kk-wrong-chip {
  font-family: 'Kosugi Maru', sans-serif;
  font-size: 1.1rem;
  padding: 4px 12px;
  border: var(--stroke) solid var(--accent-stroke);
  color: var(--accent-stroke);
  border-radius: var(--radius-pill);
}

.kk-results-btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 8px;
}

/* ── Mobile ─────────────────────────────────────── */
@media (max-width: 640px) {
  .kk-q-kanji { font-size: 3.5rem; }
  .kk-question-card { padding: 20px 16px; min-height: 240px; }
  .kk-results-score { font-size: 2.8rem; }
}

/* ── Type input (読み / 送り仮名 / 対義語) ────────── */
.kk-type-row {
  display: flex;
  gap: 8px;
  width: 100%;
  max-width: 380px;
  margin: 0 auto;  /* centre under the kanji */
}

.kk-type-input {
  flex: 1;
  padding: 10px 14px;
  border: var(--stroke-strong) solid var(--border-strong);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--ink);
  font-family: 'Kosugi Maru', sans-serif;
  font-size: 1rem;
  outline: none;
  transition: border-color 120ms ease;
}
.kk-type-input:focus {
  border-color: var(--accent-stroke);
  box-shadow: var(--ring) !important;
}
.kk-type-input:disabled {
  opacity: 0.55;
}

.kk-submit-btn {
  white-space: nowrap;
  padding: 10px 18px;
}

/* ── Feedback ───────────────────────────────────── */
.kk-feedback {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  min-height: 28px;
  margin-top: 18px;   /* breathing room below the input */
  animation: panelIn 150ms ease both;
}
.kk-fb-correct {
  display: inline-block;
  padding: 5px 18px;
  border-radius: var(--radius-pill);
  border: var(--stroke) solid var(--accent2-stroke);
  color: var(--accent2-stroke);
  font-weight: 600;
  font-size: 0.95rem;
  background: color-mix(in srgb, var(--accent2-stroke) 8%, transparent);
}
.kk-fb-wrong {
  display: inline-block;
  padding: 5px 18px;
  border-radius: var(--radius-pill);
  border: var(--stroke) solid var(--accent-stroke);
  color: var(--accent-stroke);
  font-weight: 600;
  font-size: 0.95rem;
  background: color-mix(in srgb, var(--accent-stroke) 8%, transparent);
}
.kk-fb-hint {
  color: var(--muted);
  font-size: 0.85rem;
}

/* ── Wrong / correct feedback ──────────────────── */
.kk-wrong-text {
  color: var(--accent-stroke);
  font-weight: 600;
}
.kk-seikai {
  margin-top: 10px;
  font-size: 0.95rem;
}
.kk-seikai-label {
  opacity: 0.6;
  font-size: 0.85rem;
}
.kk-seikai-text {
  color: var(--accent2-stroke);
  font-weight: 600;
}
.kk-next-btn {
  margin-top: 18px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

/* ── 書き canvas ──────────────────────────────── */
.kk-kaki-canvas-wrap {
  border-radius: 12px;
  overflow: hidden;
  display: inline-block;
  line-height: 0;
}
.kk-canvas {
  display: block;
  cursor: crosshair;
  touch-action: none;
  background: transparent;
  width: 220px;
  height: 220px;
  border: var(--stroke) solid var(--border-strong);
  border-radius: 12px;
}
.kk-kaki-controls {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 2px;
}

/* Attempt dots */
.kk-attempt-dots {
  display: flex;
  gap: 8px;
  justify-content: center;
  font-size: 0.6rem;
  letter-spacing: 2px;
}
.kk-dot { color: var(--border-strong); transition: color 200ms ease; }
.kk-dot.active { color: var(--accent-stroke); }
.kk-dot.used   { color: color-mix(in srgb, var(--accent-stroke) 40%, transparent); }

/* ── Mobile ─────────────────────────────────────── */
@media (max-width: 640px) {
  .kk-type-row { max-width: 100%; }
  .kk-canvas { width: 180px; height: 180px; }
  .kk-kaki-canvas-wrap canvas { width: 180px !important; height: 180px !important; }
}

/* ── Quit button + top row ───────────────────────── */
.kk-quiz-toprow {
  display: flex;
  align-items: center;
  gap: 10px;
}
.kk-quiz-toprow .kk-progress-bar {
  flex: 1;
}
.kk-quit-btn {
  flex-shrink: 0;
  background: none;
  border: var(--stroke) solid var(--border);
  border-radius: var(--radius-pill);
  color: var(--muted);
  font-size: 0.75rem;
  padding: 4px 10px;
  cursor: pointer;
  transition: color 120ms, border-color 120ms;
  line-height: 1;
}
.kk-quit-btn:hover {
  color: var(--accent-stroke);
  border-color: var(--accent-stroke);
}

/* ── 画数 KanjiVG layout ──────────────────────────── */
.kk-kakusuu-svg-wrap {
  display: flex;
  justify-content: center;
  margin: 4px 0 8px;
}
.kk-kakusuu-svg-el {
  color: var(--ink);
  display: block;
}
.kk-kakusuu-hint {
  text-align: center;
  margin-bottom: 6px;
}

/* ── 書き: more breathing room ───────────────────── */
.kk-kaki-meaning {
  margin-bottom: 14px !important;
  opacity: 0.6;
  font-size: 0.88rem;
}
.kk-kaki-canvas-wrap {
  margin-bottom: 14px;
}
.kk-kaki-controls {
  margin-bottom: 14px;
}

/* ── Choice button feedback (correct/wrong) ──────── */
.kk-choice-btn.kk-choice-correct {
  border-color: var(--accent2-stroke) !important;
  color: var(--accent2-stroke) !important;
  background: color-mix(in srgb, var(--accent2-stroke) 10%, transparent) !important;
}
.kk-choice-btn.kk-choice-wrong {
  border-color: var(--accent-stroke) !important;
  color: var(--accent-stroke) !important;
  background: color-mix(in srgb, var(--accent-stroke) 10%, transparent) !important;
}

/* ── Session size picker ─────────────────────────── */
.kk-count-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.kk-count-label {
  white-space: nowrap;
}
.kk-count-btns {
  display: flex;
  gap: 6px;
}
.kk-count-btn {
  padding: 6px 16px;
  border: var(--stroke) solid var(--border-strong);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--ink);
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color 120ms, color 120ms, background 120ms;
}
.kk-count-btn:hover {
  border-color: var(--accent-stroke);
  color: var(--accent-stroke);
}
.kk-count-btn.active {
  border-color: var(--accent-stroke);
  color: var(--accent-stroke);
  background: color-mix(in srgb, var(--accent-stroke) 10%, transparent);
}