/* ==========================================================================
   ハングル道場 (Hangul Dojo) - Modern Japanese/Korean Ink-Wabi Theme
   ========================================================================== */

:root {
  --font-base: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-kr: 'Noto Sans KR', 'Malgun Gothic', sans-serif;
  --font-brand: 'Zen Maru Gothic', 'Noto Sans JP', sans-serif;

  /* Color Palette: Ink Stone, Traditional Paper, Vermilion Red, Indigo Blue */
  --bg-main: #f7f6f2;
  --bg-card: #ffffff;
  --bg-subtle: #f0eee6;
  --bg-dark: #1e2024;
  
  --border-subtle: #e4e0d4;
  --border-strong: #c8c2b0;
  
  --text-main: #24292e;
  --text-muted: #6a737d;
  --text-light: #959da5;
  
  --color-primary: #d9383a;      /* Vermilion / 丹朱 / 印鑑の朱色 */
  --color-primary-dark: #b8282a;
  --color-primary-light: #fbebee;
  --color-secondary: #2b5b84;    /* Indigo / 藍色 */
  --color-accent: #d97706;       /* Gold / 琥珀 */
  --color-accent-light: #fef3c7;
  --color-success: #16a34a;      /* Jade / 翡翠色 */
  --color-success-light: #dcfce7;
  --color-ink: #191c1f;          /* 墨黒 */

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 28px rgba(0, 0, 0, 0.12);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-base);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  touch-action: manipulation;
  overflow-x: hidden;
}

/* App Container Layout */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  max-width: 1440px;
  margin: 0 auto;
}

/* ==========================================================================
   Top Header & Status Pills
   ========================================================================== */
.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  background: var(--bg-card);
  border-bottom: 2px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
}

.brand-emblem {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-primary), #a61c1e);
  color: #fff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-brand);
  font-size: 24px;
  font-weight: 900;
  box-shadow: 0 3px 8px rgba(217, 56, 58, 0.35);
  border: 2px solid #fff;
}

.brand-text h1 {
  font-family: var(--font-brand);
  font-size: 20px;
  font-weight: 900;
  color: var(--color-ink);
  letter-spacing: 0.5px;
}

.brand-text .subtitle {
  font-size: 11px;
  color: var(--text-muted);
  display: block;
}

.status-pills {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  position: relative;
  overflow: hidden;
}

.pill-icon {
  font-size: 16px;
}

.pill-info {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.pill-label {
  font-size: 10px;
  color: var(--text-muted);
}

.pill-value {
  font-weight: 700;
  color: var(--text-main);
}

.rank-pill {
  border-color: #f3c280;
  background: #fef8ee;
  min-width: 135px;
}

.exp-mini-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: #e2d7c0;
}

.exp-mini-fill {
  height: 100%;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

.streak-pill {
  background: #fff5f0;
  border-color: #ffc9b2;
}
.streak-pill strong {
  color: #ea580c;
}

.icon-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.icon-btn:hover {
  background: var(--border-subtle);
  transform: rotate(15deg);
}

/* ==========================================================================
   Navigation Tabs
   ========================================================================== */
.main-nav {
  display: flex;
  background: #fdfbf7;
  border-bottom: 1px solid var(--border-subtle);
  padding: 4px 20px 0;
  gap: 8px;
}

.nav-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  border-top-left-radius: 8px;
  border-top-right-radius: 8px;
  transition: all 0.2s ease;
  position: relative;
}

.nav-tab:hover {
  color: var(--color-primary);
  background: rgba(217, 56, 58, 0.04);
}

.nav-tab.active {
  color: var(--color-primary);
  background: var(--bg-card);
  border-bottom: 3px solid var(--color-primary);
  box-shadow: 0 -2px 6px rgba(0,0,0,0.03);
}

.tab-badge {
  background: var(--bg-subtle);
  color: var(--text-muted);
  font-size: 11px;
  padding: 2px 7px;
  border-radius: var(--radius-full);
}

.nav-tab.active .tab-badge {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* ==========================================================================
   Main Content Area & Views
   ========================================================================== */
.main-content {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
}

.view-section {
  display: none;
  animation: fadeIn 0.2s ease;
}

.view-section.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   VIEW 1: DOJO STAGES
   ========================================================================== */
.dashboard-top-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 20px;
  margin-bottom: 28px;
}

.welcome-card, .missions-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

.welcome-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 18px;
  flex-wrap: wrap;
  gap: 12px;
}

.badge-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-secondary);
  background: #eef5fb;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 6px;
}

.welcome-header h2 {
  font-size: 22px;
  font-weight: 900;
  color: var(--color-ink);
  font-family: var(--font-brand);
}

.rank-progress-box {
  background: var(--bg-subtle);
  padding: 14px 18px;
  border-radius: var(--radius-md);
}

.rank-progress-labels {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  margin-bottom: 8px;
}

.progress-bar-large {
  height: 10px;
  background: #dfdacd;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill-large {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), #f59e0b);
  border-radius: var(--radius-full);
  transition: width 0.4s ease;
}

.card-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.card-title-row h3 {
  font-size: 16px;
  font-weight: 800;
  color: var(--color-ink);
}

.mission-date {
  font-size: 12px;
  color: var(--text-muted);
}

.mission-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mission-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  font-size: 13px;
  transition: all 0.2s;
}

.mission-item.completed {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
}

.mission-item.completed .mission-check {
  background: var(--color-success);
  color: white;
  border-color: var(--color-success);
}

.mission-check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 900;
}

.mission-desc {
  flex: 1;
}

.mission-exp {
  font-weight: 700;
  color: var(--color-accent);
  font-size: 12px;
}

/* Stage Map */
.stage-map-header {
  margin-bottom: 20px;
}

.stage-map-header h2 {
  font-size: 20px;
  font-weight: 900;
  font-family: var(--font-brand);
  color: var(--color-ink);
}

.text-muted {
  color: var(--text-muted);
  font-size: 13px;
}

.stage-category-filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.stage-cat-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  color: var(--text-main);
  transition: all 0.15s;
}

.stage-cat-btn:hover {
  border-color: var(--color-crimson);
  color: var(--color-crimson);
}

.stage-cat-btn.active {
  background: var(--color-crimson);
  color: white;
  border-color: var(--color-crimson);
  box-shadow: 0 2px 8px rgba(217, 56, 58, 0.25);
}

.stages-container {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.stage-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.stage-card:hover {
  box-shadow: var(--shadow-md);
}

.stage-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: #fcfbf8;
  border-bottom: 1px solid var(--border-subtle);
}

.stage-title-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.stage-num-badge {
  background: var(--color-secondary);
  color: white;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 800;
}

.stage-title-wrap h3 {
  font-size: 17px;
  font-weight: 800;
}

.stage-desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.stage-completion-pill {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-subtle);
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.stage-items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 12px;
  padding: 20px 24px;
}

.stage-item-tile {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.stage-item-tile:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
  background: #ffffff;
  box-shadow: var(--shadow-md);
}

.stage-item-tile.mastered {
  border-color: #fbbf24;
  background: #fffbeb;
}

.tile-hangul {
  font-family: var(--font-kr);
  font-size: 32px;
  font-weight: 900;
  color: var(--color-ink);
  line-height: 1.1;
  margin-bottom: 4px;
}

.tile-kana {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-secondary);
}

.tile-romaji {
  font-size: 10px;
  color: var(--text-muted);
}

.tile-score-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  font-size: 10px;
  font-weight: 800;
  padding: 1px 5px;
  border-radius: var(--radius-full);
  background: var(--border-subtle);
  color: var(--text-muted);
}

.tile-score-badge.high {
  background: #fef08a;
  color: #854d0e;
}

/* ==========================================================================
   VIEW 2: HANDWRITING PRACTICE CANVAS & STYLUS
   ========================================================================== */
.practice-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 24px;
  align-items: start;
}

@media (max-width: 1024px) {
  .practice-layout {
    grid-template-columns: 1fr;
  }
}

.practice-info-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.practice-stage-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  padding: 10px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.back-btn {
  background: transparent;
  border: none;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-secondary);
  cursor: pointer;
  padding: 4px 6px;
  border-radius: var(--radius-sm);
}

.back-btn:hover {
  background: var(--bg-subtle);
}

.stage-indicator {
  font-weight: 800;
  font-size: 13px;
  color: var(--color-ink);
}

.item-counter {
  font-size: 12px;
  color: var(--text-muted);
}

.stage-items-strip {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 4px 0 8px;
  scrollbar-width: thin;
}

.strip-item-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 6px 12px;
  border-radius: var(--radius-md);
  font-family: var(--font-kr);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s;
}

.strip-item-btn:hover {
  border-color: var(--color-primary);
}

.strip-item-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  box-shadow: 0 2px 6px rgba(217,56,58,0.3);
}

.strip-item-btn.done {
  border-color: #86efac;
  background: #f0fdf4;
}

.strip-item-btn.done.active {
  background: var(--color-primary);
  color: white;
}

/* Target Main Card */
.target-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

.target-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.target-category-badge {
  font-size: 11px;
  font-weight: 700;
  background: var(--bg-subtle);
  color: var(--color-secondary);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.mastery-stars {
  color: #f59e0b;
  font-size: 16px;
  letter-spacing: 2px;
}

.target-main-display {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-subtle);
}

.target-hangul-big {
  font-family: var(--font-kr);
  font-size: 64px;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
  text-shadow: 1px 2px 0 rgba(0,0,0,0.06);
  min-width: 76px;
  text-align: center;
}

.target-details {
  flex: 1;
}

.target-reading-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.reading-kana {
  font-size: 22px;
  font-weight: 900;
  color: var(--color-ink);
}

.reading-romaji {
  font-size: 13px;
  color: var(--text-muted);
  font-family: monospace;
}

.audio-play-btn {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1d4ed8;
  font-size: 13px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.15s;
}

.audio-play-btn:hover {
  background: #dbeafe;
  transform: scale(1.02);
}

.audio-play-btn:active {
  transform: scale(0.97);
}

.audio-slow-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  font-size: 11px;
  padding: 4px 8px;
  border-radius: var(--radius-full);
  cursor: pointer;
  color: var(--text-muted);
}

.audio-slow-btn:hover {
  background: #e5e7eb;
}

.target-meaning {
  font-size: 14px;
  color: var(--text-main);
  font-weight: 500;
}

.target-hint-box {
  background: #fafaf7;
  border-left: 3px solid var(--color-secondary);
  padding: 12px 14px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 14px;
}

.hint-title {
  font-size: 11px;
  font-weight: 800;
  color: var(--color-secondary);
  margin-bottom: 4px;
}

.hint-text {
  font-size: 12px;
  color: var(--text-main);
  line-height: 1.4;
}

.decomposition-badges {
  display: flex;
  gap: 6px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.decomp-badge {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 2px 8px;
  font-size: 11px;
  font-family: var(--font-kr);
  font-weight: 700;
  color: var(--color-ink);
}

.target-example-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-subtle);
  padding: 10px 14px;
  border-radius: var(--radius-md);
}

.example-content {
  display: flex;
  flex-direction: column;
}

.example-label {
  font-size: 10px;
  color: var(--text-muted);
}

.example-kr {
  font-size: 13px;
  color: var(--color-ink);
}

.mini-audio-btn {
  background: white;
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  width: 28px;
  height: 28px;
  cursor: pointer;
}

/* Practice Mode Toggle Card */
.practice-mode-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  border: 1px solid var(--border-subtle);
}

.practice-mode-card h4 {
  font-size: 13px;
  font-weight: 800;
  color: var(--color-ink);
  margin-bottom: 10px;
}

.mode-toggle-group {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}

.mode-btn {
  border: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
  padding: 8px 6px;
  border-radius: var(--radius-md);
  text-align: center;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: all 0.2s;
}

.mode-btn span {
  font-size: 12px;
  font-weight: 800;
}

.mode-btn small {
  font-size: 9px;
  color: var(--text-muted);
}

.mode-btn.active {
  border-color: var(--color-secondary);
  background: #eff6ff;
  color: var(--color-secondary);
}

/* Practice Canvas Panel */
.practice-canvas-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.word-slots-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 2px;
}

.word-slot-btn {
  font-family: var(--font-kr);
  font-size: 20px;
  font-weight: 900;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 2px solid var(--border-subtle);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.word-slot-btn.active {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.word-slot-btn.completed {
  border-color: #86efac;
  background: #f0fdf4;
  color: var(--color-success);
}

/* Canvas Wrapper */
.canvas-wrapper {
  position: relative;
  width: 520px;
  height: 520px;
  background: #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 3px solid var(--border-strong);
  overflow: hidden;
  touch-action: none; /* Crucial for Apple Pencil & stylus draw without scrolling */
}

@media (max-width: 560px) {
  .canvas-wrapper {
    width: 340px;
    height: 340px;
  }
}

#guide-canvas, #draw-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

#guide-canvas {
  z-index: 1;
}

#draw-canvas {
  z-index: 2;
  cursor: crosshair;
}

/* Floating Feedback Overlay */
.canvas-feedback-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(4px);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 30px;
  text-align: center;
  animation: popIn 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.canvas-feedback-overlay.hidden {
  display: none;
}

@keyframes popIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

.feedback-stamp {
  font-family: var(--font-brand);
  font-size: 26px;
  font-weight: 900;
  color: var(--color-primary);
  border: 4px solid var(--color-primary);
  padding: 6px 20px;
  border-radius: var(--radius-md);
  transform: rotate(-6deg);
  margin-bottom: 14px;
  letter-spacing: 2px;
  box-shadow: 0 4px 12px rgba(217, 56, 58, 0.2);
}

.feedback-stamp.master {
  color: #d97706;
  border-color: #d97706;
}

.feedback-stamp.good {
  color: #2b5b84;
  border-color: #2b5b84;
}

.feedback-score-row {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 6px;
}

.score-number {
  font-size: 60px;
  font-weight: 900;
  color: var(--color-ink);
  line-height: 1;
}

.score-unit {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-muted);
}

.feedback-comment {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 14px;
}

.feedback-metrics {
  display: flex;
  gap: 16px;
  background: var(--bg-subtle);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 13px;
  margin-bottom: 20px;
}

.exp-gain-text {
  color: #ea580c;
  font-weight: 900;
}

.feedback-actions {
  display: flex;
  gap: 12px;
}

/* Live Coverage Meter */
.live-meter-bar {
  position: absolute;
  bottom: 12px;
  left: 16px;
  right: 16px;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(2px);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  pointer-events: none;
}

.meter-item {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.meter-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
}

.meter-track {
  width: 100px;
  height: 6px;
  background: #e5e7eb;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  background: var(--color-primary);
  transition: width 0.15s ease;
}

.meter-val {
  font-size: 11px;
  font-weight: 800;
  color: var(--color-ink);
}

.stylus-indicator {
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Canvas Action Toolbar */
.canvas-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 520px;
  max-width: 100%;
  gap: 12px;
}

.toolbar-left, .toolbar-right {
  display: flex;
  gap: 8px;
}

.tool-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.15s;
}

.tool-btn:hover {
  background: var(--bg-subtle);
}

.tool-btn.danger-hover:hover {
  border-color: #ef4444;
  color: #dc2626;
  background: #fef2f2;
}

.evaluate-btn {
  background: linear-gradient(135deg, var(--color-primary), #b8282a);
  color: white;
  border: none;
  padding: 10px 24px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(217, 56, 58, 0.35);
  transition: all 0.15s;
  letter-spacing: 0.5px;
}

.evaluate-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(217, 56, 58, 0.45);
}

.evaluate-btn:active {
  transform: translateY(0);
}

/* ==========================================================================
   VIEW 3: HANGUL DEX (COLLECTION)
   ========================================================================== */
.dex-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 14px;
}

.dex-header h2 {
  font-size: 22px;
  font-weight: 900;
  font-family: var(--font-brand);
  color: var(--color-ink);
}

.dex-filter-bar {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.filter-chip {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
}

.filter-chip:hover {
  border-color: var(--color-secondary);
}

.filter-chip.active {
  background: var(--color-secondary);
  color: white;
  border-color: var(--color-secondary);
}

.dex-legend {
  display: flex;
  gap: 18px;
  font-size: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
}

.rank-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.rank-dot.master { background: #b45309; box-shadow: 0 0 6px #f59e0b; }
.rank-dot.gold { background: #eab308; }
.rank-dot.silver { background: #94a3b8; }
.rank-dot.unlearned { background: #d1d5db; }

.dex-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}

.dex-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-subtle);
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}

.dex-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.dex-card.rank-unlearned {
  opacity: 0.55;
  filter: grayscale(0.6);
}

.dex-card.rank-silver {
  border-color: #cbd5e1;
  background: #f8fafc;
}

.dex-card.rank-gold {
  border-color: #fde047;
  background: #fefce8;
}

.dex-card.rank-master {
  border-color: #f59e0b;
  background: linear-gradient(180deg, #fffbeb, #fef3c7);
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.25);
}

.dex-rank-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 11px;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: var(--bg-subtle);
}

.dex-card.rank-master .dex-rank-badge {
  background: #b45309;
  color: white;
}

.dex-card.rank-gold .dex-rank-badge {
  background: #ca8a04;
  color: white;
}

.dex-card.rank-silver .dex-rank-badge {
  background: #64748b;
  color: white;
}

.dex-hangul {
  font-family: var(--font-kr);
  font-size: 38px;
  font-weight: 900;
  color: var(--color-ink);
  line-height: 1.1;
  margin-top: 6px;
  margin-bottom: 4px;
}

.dex-kana {
  font-size: 13px;
  font-weight: 800;
  color: var(--color-secondary);
}

.dex-meaning {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.dex-stats-row {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px dashed var(--border-subtle);
  width: 100%;
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
}

/* ==========================================================================
   VIEW 4: LEARNING RECORDS & HEATMAP
   ========================================================================== */
.records-top-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-box {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 20px;
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 16px;
}

.stat-icon {
  font-size: 32px;
}

.stat-content {
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
}

.stat-number {
  font-size: 24px;
  font-weight: 900;
  color: var(--color-ink);
}

.record-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}

.record-card h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--color-ink);
}

.small-desc {
  font-size: 12px;
  margin-top: 2px;
  margin-bottom: 14px;
}

/* Heatmap Grid */
.heatmap-legend {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--text-muted);
}

.heatmap-container {
  overflow-x: auto;
  padding: 10px 0;
}

.heat-grid {
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(7, 14px);
  gap: 4px;
  width: max-content;
}

.heat-cell {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background: #ebedf0;
  transition: transform 0.1s;
}

.heat-cell:hover {
  transform: scale(1.3);
  outline: 1px solid #1f2937;
}

.heat-cell.lvl-0 { background: #ebedf0; }
.heat-cell.lvl-1 { background: #c6e48b; }
.heat-cell.lvl-2 { background: #7bc96f; }
.heat-cell.lvl-3 { background: #239a3b; }
.heat-cell.lvl-4 { background: #196127; }

.records-bottom-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 900px) {
  .records-bottom-grid {
    grid-template-columns: 1fr;
  }
}

.weak-items-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.weak-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s;
}

.weak-item-row:hover {
  background: #fff1f2;
  border-color: #fda4af;
}

.weak-item-char {
  font-family: var(--font-kr);
  font-size: 20px;
  font-weight: 900;
  margin-right: 12px;
}

.weak-item-info {
  display: flex;
  align-items: center;
}

.weak-item-score {
  font-size: 12px;
  font-weight: 700;
  color: #e11d48;
}

.history-log-list {
  max-height: 320px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.log-entry {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
  font-size: 12px;
}

.log-entry-char {
  font-family: var(--font-kr);
  font-size: 15px;
  font-weight: 800;
  margin-right: 8px;
}

.log-score {
  font-weight: 700;
  color: var(--color-ink);
}

.data-backup-btns {
  display: flex;
  gap: 8px;
}

.small-outline-btn {
  background: white;
  border: 1px solid var(--border-strong);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  color: var(--text-main);
}

.small-outline-btn:hover {
  background: var(--bg-subtle);
}

/* ==========================================================================
   Modals & General Buttons
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(2px);
}

.modal-backdrop.hidden {
  display: none;
}

.modal-content {
  background: var(--bg-card);
  width: 90%;
  max-width: 480px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-header h3 {
  font-size: 17px;
  font-weight: 800;
}

.close-modal-btn {
  background: transparent;
  border: none;
  font-size: 18px;
  cursor: pointer;
  color: var(--text-muted);
}

.modal-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.setting-group label {
  font-size: 13px;
  font-weight: 700;
}

.setting-select {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  font-size: 13px;
  background: white;
}

.setting-help {
  font-size: 11px;
  color: var(--text-muted);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  cursor: pointer;
}

.modal-divider {
  border: none;
  border-top: 1px solid var(--border-subtle);
}

.danger-outline-btn {
  background: #fef2f2;
  border: 1px solid #f87171;
  color: #dc2626;
  padding: 10px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.primary-cta-btn {
  background: var(--color-primary);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 3px 8px rgba(217, 56, 58, 0.3);
  transition: all 0.15s;
}

.primary-cta-btn:hover {
  background: var(--color-primary-dark);
}

.secondary-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-strong);
  color: var(--text-main);
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: #1f2937;
  color: white;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 700;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.25s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   特訓「覚えるまで」モード (Mastery Drill Styles)
   ========================================================================== */
.special-drill-tab {
  background: linear-gradient(180deg, #fff9f5, #fff0eb);
  border: 1px solid #ffccb8 !important;
  color: #c2410c !important;
}

.special-drill-tab:hover {
  background: #ffedd5 !important;
}

.drill-live-badge {
  background: #ea580c;
  color: white;
  font-size: 11px;
  font-weight: 900;
  padding: 1px 7px;
  border-radius: var(--radius-full);
  margin-left: 4px;
}

.drill-hero-card {
  background: linear-gradient(135deg, #fff7ed, #ffedd5);
  border: 2px solid #fdba74;
  border-radius: var(--radius-lg);
  padding: 26px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
}

.drill-hero-content {
  flex: 1;
  min-width: 300px;
}

.drill-tag {
  display: inline-block;
  background: #ea580c;
  color: white;
  font-size: 11px;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 8px;
}

.drill-hero-content h2 {
  font-size: 22px;
  font-weight: 900;
  font-family: var(--font-brand);
  color: #9a3412;
  margin-bottom: 8px;
}

.drill-hero-content p {
  font-size: 13px;
  color: #7c2d12;
  line-height: 1.6;
}

.drill-stats-pillbox {
  display: flex;
  align-items: center;
  gap: 16px;
  background: white;
  padding: 14px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid #fed7aa;
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
}

.drill-mini-stat {
  display: flex;
  flex-direction: column;
}

.drill-mini-stat .lbl {
  font-size: 11px;
  color: var(--text-muted);
}

.drill-mini-stat .val {
  font-size: 22px;
  font-weight: 900;
  line-height: 1.1;
}

.drill-mini-stat .val.alert { color: #ea580c; }
.drill-mini-stat .val.success { color: #16a34a; }

.pulse-glow {
  animation: pulseGlow 2s infinite;
}

@keyframes pulseGlow {
  0% { box-shadow: 0 0 0 0 rgba(234, 88, 12, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(234, 88, 12, 0); }
  100% { box-shadow: 0 0 0 0 rgba(234, 88, 12, 0); }
}

.drill-scope-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  padding: 18px 24px;
  margin-bottom: 24px;
}

.drill-scope-card h3 {
  font-size: 15px;
  font-weight: 800;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.drill-scope-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.scope-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  color: var(--text-main);
  transition: all 0.15s;
}

.scope-btn:hover {
  border-color: #ea580c;
}

.scope-btn.active {
  background: #ea580c;
  color: white;
  border-color: #ea580c;
}

.drill-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 14px;
}

.drill-item-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 2px solid var(--border-subtle);
  padding: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  position: relative;
  transition: all 0.15s;
}

.drill-item-card:hover {
  transform: translateY(-2px);
  border-color: #ea580c;
  box-shadow: var(--shadow-sm);
}

.drill-stage-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  font-size: 10px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: var(--radius-full);
}

.drill-stage-0 { background: #fee2e2; color: #b91c1c; } /* なぞり */
.drill-stage-1 { background: #fef3c7; color: #b45309; } /* うす墨 */
.drill-stage-2 { background: #dbeafe; color: #1d4ed8; } /* 暗記 */
.drill-stage-3 { background: #dcfce7; color: #15803d; } /* 免許皆伝 */

.drill-char-big {
  font-family: var(--font-kr);
  font-size: 36px;
  font-weight: 900;
  color: var(--color-ink);
  line-height: 1.1;
  margin: 6px 0 2px;
}

.drill-char-kana {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-secondary);
}

.drill-char-status {
  margin-top: 8px;
  font-size: 11px;
  color: var(--text-muted);
}

.drill-session-indicator {
  background: #ffedd5;
  color: #c2410c;
  border: 1px solid #fed7aa;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 800;
}

.drill-session-indicator.hidden {
  display: none;
}

/* ==========================================================================
   データ同期・バックアップモーダル (Sync & Backup Modal)
   ========================================================================== */
.sync-modal-content {
  max-width: 580px !important;
}

.sync-method-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.method-title {
  font-size: 14px;
  font-weight: 800;
  color: var(--color-ink);
}

.sync-help-text {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

.sync-btn-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.file-input-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin: 0;
}

.sync-textarea-wrap textarea {
  width: 100%;
  height: 90px;
  font-family: monospace;
  font-size: 11px;
  padding: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  resize: vertical;
  background: white;
  box-sizing: border-box;
}