/* === 중1 기초 영문법 TV 퀘스트 - 10-Foot UI 디자인 시스템 === */
:root {
  --bg-color: #080a16;
  --panel-bg: rgba(18, 24, 46, 0.85);
  --panel-border: rgba(90, 120, 200, 0.28);
  --accent-cyan: #00f0ff;
  --accent-magenta: #ff007f;
  --accent-gold: #ffc800;
  --accent-green: #00ff88;
  --accent-red: #ff3366;
  --text-main: #f2f6ff;
  --text-dim: #94a5c4;
  --card-bg: rgba(26, 34, 66, 0.7);
  --card-border: rgba(100, 130, 220, 0.3);
  --focus-glow: 0 0 26px rgba(0, 240, 255, 0.85), 0 0 8px #00f0ff;
  --correct-glow: 0 0 26px rgba(0, 255, 136, 0.8), 0 0 8px #00ff88;
  --wrong-glow: 0 0 26px rgba(255, 51, 102, 0.8), 0 0 8px #ff3366;
  --font-main: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
  --font-display: 'Orbitron', sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

body {
  background-color: var(--bg-color);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(0, 240, 255, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 85% 85%, rgba(255, 200, 0, 0.08) 0%, transparent 45%),
    linear-gradient(180deg, #070913 0%, #0d1226 100%);
  color: var(--text-main);
  font-family: var(--font-main);
  min-height: 100vh;
  width: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

/* === 메인 앱 컨테이너 (PC 와이드 & 모바일 세로 반응형 지원) === */
.app-container,
.tv-safe-area {
  width: 100%;
  max-width: 1360px;
  min-height: 100vh;
  padding: 8px 16px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 8px;
  overflow: visible;
}

/* === 상단 헤더 & HUD === */
.hud-header {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 5px 14px;
  backdrop-filter: blur(12px);
  gap: 10px;
  flex-shrink: 0;
}

.header-left-group {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.logo-area {
  display: flex;
  flex-direction: column;
}

.game-badge {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--accent-cyan);
  font-weight: 700;
  line-height: 1.1;
}

.game-title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 900;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 8px;
  line-height: 1.2;
}

.grade-tag {
  font-family: var(--font-main);
  font-size: 12px;
  font-weight: 700;
  background: rgba(255, 200, 0, 0.2);
  color: var(--accent-gold);
  border: 1px solid rgba(255, 200, 0, 0.4);
  padding: 2px 8px;
  border-radius: 20px;
  letter-spacing: 0;
  white-space: nowrap;
}

/* HUD 스탯 카드 */
.hud-stats {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-shrink: 0;
}

.stat-card {
  background: rgba(10, 14, 30, 0.85);
  border: 1px solid var(--panel-border);
  padding: 3px 10px;
  border-radius: 9px;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 72px;
  white-space: nowrap;
}

.stat-label {
  font-family: var(--font-display);
  font-size: 8.5px;
  color: var(--text-dim);
  letter-spacing: 1px;
  line-height: 1.1;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  white-space: nowrap;
}

.master-val {
  color: var(--accent-cyan);
  font-size: 13px;
  font-family: var(--font-main);
  font-weight: 700;
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.4);
  white-space: nowrap;
}

.streak-val {
  color: #ff9900;
  text-shadow: 0 0 8px rgba(255, 153, 0, 0.5);
  white-space: nowrap;
}

/* 타이머 카드 */
.timer-card {
  min-width: 90px;
}

.timer-bar-wrap {
  width: 90px;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  overflow: hidden;
  margin: 2px 0 1px 0;
}

.timer-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-green));
  transition: width 0.3s linear, background-color 0.3s ease;
  box-shadow: 0 0 8px var(--accent-cyan);
}

.timer-number {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-dim);
}

/* 음성 인식 뱃지 */
.voice-status-card {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(10, 15, 30, 0.85);
  border: 1px solid var(--panel-border);
  padding: 4px 12px;
  border-radius: 10px;
  transition: all 0.3s ease;
  flex-shrink: 0;
  white-space: nowrap;
}

.voice-status-card.listening {
  border-color: var(--accent-magenta);
  box-shadow: 0 0 14px rgba(255, 0, 127, 0.4);
}

.mic-icon-wrap {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s, background 0.3s;
}

.mic-svg {
  width: 15px;
  height: 15px;
  fill: var(--text-dim);
  transition: fill 0.3s;
}

.voice-status-card.listening .mic-icon-wrap {
  background: var(--accent-magenta);
  animation: pulseMic 1.2s infinite;
}

.voice-status-card.listening .mic-svg {
  fill: #fff;
}

@keyframes pulseMic {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 0, 127, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 10px rgba(255, 0, 127, 0); }
  100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 0, 127, 0); }
}

.voice-text-info {
  display: flex;
  flex-direction: column;
}

.voice-status-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-cyan);
  line-height: 1.1;
}

.voice-recognized-word {
  font-size: 12px;
  color: #fff;
  max-width: 140px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
}

/* TV 화면 배율 맞춤 버튼 */
.ui-scale-btn {
  background: rgba(18, 26, 56, 0.85);
  border: 1.5px solid rgba(0, 240, 255, 0.4);
  color: var(--accent-cyan);
  padding: 4px 12px;
  border-radius: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-main);
  font-size: 12px;
  font-weight: 800;
  outline: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.ui-scale-btn:hover,
.ui-scale-btn:focus {
  background: rgba(0, 240, 255, 0.2);
  border-color: #fff;
  color: #fff;
  transform: scale(1.05);
  box-shadow: 0 0 16px var(--accent-cyan);
}

.ui-scale-btn .scale-icon {
  font-size: 13px;
}

/* 조작 및 사용법 도움말 버튼 */
.help-btn {
  background: rgba(18, 26, 56, 0.85);
  border: 1.5px solid rgba(255, 200, 0, 0.45);
  color: var(--accent-gold);
  padding: 4px 12px;
  border-radius: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-main);
  font-size: 12px;
  font-weight: 800;
  outline: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.help-btn:hover,
.help-btn:focus {
  background: rgba(255, 200, 0, 0.25);
  border-color: #fff;
  color: #fff;
  transform: scale(1.05);
  box-shadow: 0 0 16px var(--accent-gold);
}

.help-btn .help-icon {
  font-size: 13px;
}

/* === 햄버거 메뉴 버튼 (상단 좌측) === */
.hamburger-btn {
  background: rgba(18, 26, 56, 0.85);
  border: 1.5px solid rgba(0, 240, 255, 0.45);
  border-radius: 10px;
  width: 40px;
  height: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
  outline: none;
  transition: all 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
  flex-shrink: 0;
}

.hamburger-btn:hover,
.hamburger-btn:focus {
  background: rgba(0, 240, 255, 0.25);
  border-color: #fff;
  transform: scale(1.05);
  box-shadow: 0 0 16px var(--accent-cyan);
}

.hamburger-bar {
  display: block;
  width: 20px;
  height: 2.5px;
  background-color: var(--accent-cyan);
  border-radius: 2px;
  transition: all 0.2s ease;
}

.hamburger-btn:hover .hamburger-bar {
  background-color: #fff;
}

/* === 좌측 슬라이드 드로어 메뉴 (설정, 학년선택, 음성/도움말 모음) === */
.drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(4, 7, 18, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.28s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.28s;
}

.drawer-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.drawer-menu {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 360px;
  max-width: 88vw;
  background: linear-gradient(180deg, #0e1532 0%, #070a18 100%);
  border-right: 1.5px solid rgba(0, 240, 255, 0.35);
  box-shadow: 20px 0 50px rgba(0, 0, 0, 0.85);
  transform: translateX(-100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  z-index: 1001;
  overflow-y: auto;
  box-sizing: border-box;
}

.drawer-overlay.active .drawer-menu {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(14, 20, 48, 0.95);
  flex-shrink: 0;
}

.drawer-header h2 {
  font-size: 16px;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.drawer-close-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: var(--text-dim);
  font-size: 15px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
}

.drawer-close-btn:hover {
  background: rgba(255, 51, 102, 0.25);
  border-color: var(--accent-red);
  color: #fff;
}

.drawer-body {
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
}

.drawer-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.drawer-section-title {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--accent-cyan);
  text-transform: uppercase;
}

.drawer-grade-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 0;
}

.drawer-grade-grid .grade-tab {
  height: 50px;
  padding: 5px 8px;
  border-radius: 10px;
  background: rgba(18, 24, 52, 0.85);
  border: 1.5px solid var(--panel-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  cursor: pointer;
  outline: none;
  transition: all 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.drawer-grade-grid .grade-tab .tab-badge {
  font-family: var(--font-main);
  font-size: 13px;
  font-weight: 800;
  color: var(--text-dim);
}

.drawer-grade-grid .grade-tab .tab-sub {
  font-size: 10px;
  color: #6b7c96;
}

.drawer-grade-grid .grade-tab:hover,
.drawer-grade-grid .grade-tab:focus {
  transform: scale(1.03);
  border-color: var(--accent-cyan);
  background: rgba(30, 42, 85, 0.95);
  box-shadow: var(--focus-glow);
}

.drawer-grade-grid .grade-tab.active {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.25), rgba(18, 24, 60, 0.95));
  border-color: var(--accent-cyan);
  box-shadow: 0 0 14px rgba(0, 240, 255, 0.4);
}

.drawer-grade-grid .grade-tab.active .tab-badge {
  color: #fff;
}

.drawer-grade-grid .grade-tab.active .tab-sub {
  color: var(--accent-cyan);
  font-weight: 700;
}

.drawer-item-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 11px 14px;
  background: rgba(18, 24, 52, 0.8);
  border: 1.5px solid var(--panel-border);
  border-radius: 12px;
  color: #fff;
  font-family: var(--font-main);
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  outline: none;
  transition: all 0.2s ease;
  margin-bottom: 8px;
}

.drawer-item-btn:hover,
.drawer-item-btn:focus {
  background: rgba(30, 42, 85, 0.9);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.25);
  transform: translateX(3px);
}

.drawer-item-btn .item-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.drawer-item-btn .item-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-dim);
}

.drawer-action-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  background: rgba(18, 24, 52, 0.75);
  border: 1.5px solid var(--panel-border);
  border-radius: 12px;
}

.drawer-action-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.drawer-action-label {
  font-size: 13.5px;
  font-weight: 800;
  color: #fff;
}

.drawer-action-desc {
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.3;
}

.drawer-toggle-btn {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(0, 120, 255, 0.4));
  border: 1.5px solid var(--accent-cyan);
  color: #fff;
  border-radius: 10px;
  padding: 7px 14px;
  font-family: var(--font-main);
  font-size: 12.5px;
  font-weight: 800;
  cursor: pointer;
  outline: none;
  transition: all 0.2s;
  white-space: nowrap;
}

.drawer-toggle-btn:hover,
.drawer-toggle-btn:focus {
  background: var(--accent-cyan);
  color: #000;
  box-shadow: 0 0 14px var(--accent-cyan);
  transform: scale(1.04);
}

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

.drawer-tool-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 12px;
  background: rgba(18, 24, 52, 0.8);
  border: 1.5px solid var(--panel-border);
  border-radius: 10px;
  color: #fff;
  font-family: var(--font-main);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  outline: none;
  transition: all 0.2s;
}

.drawer-tool-btn:hover,
.drawer-tool-btn:focus {
  border-color: var(--accent-cyan);
  background: rgba(30, 42, 85, 0.95);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.3);
  transform: translateY(-2px);
}


.drawer-footer {
  padding: 14px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 11px;
  color: var(--text-dim);
  text-align: center;
  background: rgba(10, 14, 30, 0.6);
  flex-shrink: 0;
}

/* === 모바일 뷰포트 탭 바 (문제 풀기 vs 해설 & 섀도잉) === */
.mobile-viewport-tabs {
  display: none; /* PC에서는 숨김 */
  gap: 8px;
  width: 100%;
  margin: 2px 0 6px 0;
  flex-shrink: 0;
}

.m-tab-btn {
  flex: 1;
  padding: 9px 12px;
  border-radius: 12px;
  background: rgba(18, 24, 52, 0.85);
  border: 1.5px solid var(--panel-border);
  color: var(--text-dim);
  font-family: var(--font-main);
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  outline: none;
  transition: all 0.2s ease;
}

.m-tab-btn.active {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(18, 24, 60, 0.95));
  border-color: var(--accent-cyan);
  color: #fff;
  box-shadow: 0 0 14px rgba(0, 240, 255, 0.35);
}

.m-tab-btn .tab-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-dim);
}

.m-tab-btn.active .tab-badge-dot {
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
}

/* === 메인 듀얼 뷰포트 (PC: 좌우 2분할 50:50 / 스마트폰: 좌우 스크롤 스냅 페이징) === */
.quest-dual-viewport {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  align-items: stretch;
  width: 100%;
  flex: 1;
  min-height: 0;
}

.quest-panel {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 10px 16px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 8px;
  backdrop-filter: blur(12px);
  overflow-y: hidden;
  box-sizing: border-box;
  min-height: 0;
  position: relative;
}

/* 좌측 문제 풀이 패널: 스크롤바 완전 제거 */
.panel-solve {
  display: flex;
  flex-direction: column;
  overflow-y: hidden;
}

/* 우측 해설 & 섀도잉 패널: 슬림 네온 스크롤바 */
.panel-explain {
  background: linear-gradient(180deg, rgba(14, 20, 44, 0.88) 0%, rgba(10, 15, 34, 0.92) 100%);
  border-color: rgba(90, 130, 220, 0.35);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 240, 255, 0.3) rgba(10, 15, 35, 0.4);
}
.panel-explain::-webkit-scrollbar {
  width: 6px;
}
.panel-explain::-webkit-scrollbar-track {
  background: rgba(10, 15, 35, 0.4);
  border-radius: 4px;
}
.panel-explain::-webkit-scrollbar-thumb {
  background: rgba(0, 240, 255, 0.25);
  border-radius: 4px;
}
.panel-explain::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 240, 255, 0.5);
}

/* 해설 대기 플레이스홀더 카드 */
.explain-placeholder-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 18px 16px;
  border: 2px dashed rgba(90, 120, 200, 0.35);
  border-radius: 14px;
  background: rgba(14, 20, 48, 0.4);
  gap: 8px;
  margin: auto 0;
}

.ph-glow-icon {
  font-size: 28px;
  animation: pulseIcon 2s infinite ease-in-out;
}

@keyframes pulseIcon {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 6px rgba(255, 200, 0, 0.4)); }
  50% { transform: scale(1.1); filter: drop-shadow(0 0 16px rgba(255, 200, 0, 0.8)); }
}

.ph-title {
  font-size: 16px;
  font-weight: 800;
  color: #fff;
}

.ph-desc {
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--text-dim);
  max-width: 380px;
}

.ph-desc strong {
  color: var(--accent-cyan);
}

.ph-tip-box {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.25);
  padding: 5px 12px;
  border-radius: 8px;
  font-size: 11.5px;
  color: #d0e4ff;
  margin-top: 4px;
}

.ph-tip-box span {
  background: var(--accent-cyan);
  color: #000;
  font-weight: 900;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
}

/* === 하단 전후 문제 이동 네비게이션 바 === */
.bottom-nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: rgba(14, 20, 44, 0.9);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 5px 12px;
  backdrop-filter: blur(12px);
  flex-shrink: 0;
  margin-top: 2px;
}

.nav-arrow-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 8px;
  font-family: var(--font-main);
  font-size: 12.5px;
  font-weight: 800;
  cursor: pointer;
  outline: none;
  transition: all 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
  border: 1.5px solid transparent;
  white-space: nowrap;
}

.nav-arrow-btn.prev-btn {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  color: #d0d8ec;
}

.nav-arrow-btn.prev-btn:hover:not(:disabled),
.nav-arrow-btn.prev-btn:focus:not(:disabled) {
  background: rgba(255, 255, 255, 0.18);
  border-color: #fff;
  color: #fff;
  transform: translateX(-2px);
}

.nav-arrow-btn.next-btn {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.3), rgba(0, 150, 255, 0.5));
  border-color: var(--accent-cyan);
  color: #fff;
  box-shadow: 0 0 14px rgba(0, 240, 255, 0.3);
}

.nav-arrow-btn.next-btn:hover:not(:disabled),
.nav-arrow-btn.next-btn:focus:not(:disabled) {
  background: linear-gradient(135deg, var(--accent-cyan), #0088ff);
  color: #000;
  box-shadow: 0 0 20px var(--accent-cyan);
  transform: translateX(2px);
}

.nav-arrow-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* 문제 이동 트랙 (1~10 문제 닷) */
.nav-question-track {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 4px 6px;
}

.nav-dot {
  width: 25px;
  height: 25px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1.5px solid rgba(255, 255, 255, 0.18);
  color: var(--text-dim);
  font-family: var(--font-display);
  font-size: 10.5px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.nav-dot:hover {
  border-color: var(--accent-cyan);
  color: #fff;
  transform: scale(1.1);
}

.nav-dot.active {
  border-color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.3);
  color: #fff;
  box-shadow: 0 0 12px var(--accent-cyan);
  transform: scale(1.15);
}

.nav-dot.correct {
  background: rgba(0, 255, 136, 0.25);
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.nav-dot.correct.active {
  background: var(--accent-green);
  color: #000;
  box-shadow: 0 0 14px var(--accent-green);
}

.nav-dot.wrong {
  background: rgba(255, 51, 102, 0.25);
  border-color: var(--accent-red);
  color: var(--accent-red);
}

.nav-dot.wrong.active {
  background: var(--accent-red);
  color: #fff;
  box-shadow: 0 0 14px var(--accent-red);
}



/* 카테고리 태그 영역 */
.category-pill-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
  flex-shrink: 0;
}

.category-left-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.category-pill {
  font-size: 14px;
  font-weight: 800;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.15);
  border: 1.5px solid rgba(0, 240, 255, 0.4);
  padding: 4px 14px;
  border-radius: 18px;
}

/* 핵심 문법 개념 보기 버튼 */
.concept-guide-btn {
  background: linear-gradient(135deg, rgba(255, 200, 0, 0.2), rgba(255, 140, 0, 0.2));
  border: 1.5px solid var(--accent-gold);
  border-radius: 16px;
  padding: 4px 12px;
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  color: #fff;
  font-weight: 800;
  font-size: 12.5px;
  outline: none;
  transition: all 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
  box-shadow: 0 0 10px rgba(255, 200, 0, 0.2);
}

.concept-guide-btn:hover,
.concept-guide-btn:focus,
.concept-guide-btn.focused {
  background: linear-gradient(135deg, rgba(255, 200, 0, 0.45), rgba(255, 140, 0, 0.45));
  transform: scale(1.08);
  box-shadow: 0 0 26px var(--accent-gold), 0 0 10px #ffc800;
  border-color: #ffe680;
  color: #fff;
}

.concept-guide-btn .icon {
  font-size: 15px;
}

.rule-hint-pill {
  font-size: 15px;
  color: var(--text-dim);
}

/* === 영문법 Hero 문제 쇼케이스 보드 (100% 와이드 텍스트 집중형) === */
.hero-question-showcase {
  width: 100%;
  margin-bottom: 6px;
  flex-shrink: 0;
  display: block;
}

/* 메인 영어 문장 & 번역 포커스 보드 */
.sentence-board {
  width: 100%;
  min-height: 64px;
  background: linear-gradient(135deg, rgba(16, 24, 56, 0.95) 0%, rgba(10, 15, 36, 0.95) 100%);
  border: 2px solid rgba(120, 160, 255, 0.35);
  border-radius: 14px;
  padding: 10px 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  box-shadow: 
    0 8px 24px rgba(0, 0, 0, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.1),
    inset 0 0 20px rgba(0, 240, 255, 0.05);
}

/* 문장 상단 퀘스트 뱃지 헤더 */
.question-pill-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.q-focus-badge {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 1.5px;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.15);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 2px 8px;
  border-radius: 10px;
}

.q-clue-guide {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-dim);
}

.target-sentence {
  font-size: clamp(19px, 2.1vw, 28px);
  font-weight: 900;
  color: #ffffff;
  line-height: 1.25;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
  transition: all 0.3s ease;
}

/* 정답 확인 시 원어민 음성이 문장을 읽어주는 동안 네온 글로우 하이라이트 */
.target-sentence.tts-reading {
  color: var(--accent-cyan) !important;
  text-shadow: 0 0 20px rgba(0, 240, 255, 0.8), 0 0 35px var(--accent-cyan) !important;
}

/* 빈칸 슬롯: 펄스 애니메이션이 적용된 3D 네온 골드 박스 */
.blank-box {
  display: inline-block;
  min-width: 80px;
  background: linear-gradient(180deg, rgba(255, 200, 0, 0.28) 0%, rgba(255, 120, 0, 0.15) 100%);
  border: 2px dashed var(--accent-gold);
  color: var(--accent-gold);
  padding: 2px 12px;
  border-radius: 10px;
  margin: 0 4px;
  font-weight: 900;
  text-align: center;
  text-shadow: 0 0 16px rgba(255, 200, 0, 0.7);
  box-shadow: 0 0 16px rgba(255, 200, 0, 0.3), inset 0 0 10px rgba(255, 200, 0, 0.2);
  animation: blankPulse 2s infinite ease-in-out;
  vertical-align: middle;
}

@keyframes blankPulse {
  0% {
    border-color: var(--accent-gold);
    box-shadow: 0 0 12px rgba(255, 200, 0, 0.3), inset 0 0 8px rgba(255, 200, 0, 0.15);
    transform: scale(1);
  }
  50% {
    border-color: #ffffff;
    box-shadow: 0 0 24px rgba(255, 200, 0, 0.7), inset 0 0 16px rgba(255, 200, 0, 0.35);
    transform: scale(1.02);
  }
  100% {
    border-color: var(--accent-gold);
    box-shadow: 0 0 12px rgba(255, 200, 0, 0.3), inset 0 0 8px rgba(255, 200, 0, 0.15);
    transform: scale(1);
  }
}

.sentence-translation {
  margin-top: 3px;
  font-size: clamp(13px, 1.3vw, 15.5px);
  color: #b0c2de;
  font-weight: 600;
}

/* 2x2 보기 선택지 그리드 (와이드 & 고시인성, 콤팩트 아케이드 최적화) */
.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: repeat(2, minmax(48px, 68px));
  gap: 8px 12px;
  margin: 6px 0 0 0;
  width: 100%;
  flex-shrink: 0;
}

.option-card {
  background: rgba(18, 24, 56, 0.85);
  border: 2px solid rgba(70, 95, 175, 0.45);
  border-radius: 12px;
  padding: 6px 14px;
  height: clamp(48px, 7vh, 68px);
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  outline: none;
  transition: all 0.18s cubic-bezier(0.2, 0.8, 0.2, 1);
  position: relative;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}

.option-card .opt-key-badge {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 900;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.15);
  border: 1.5px solid rgba(0, 240, 255, 0.4);
  border-radius: 50%;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.18s ease;
  flex-shrink: 0;
}

.option-card .opt-text {
  font-size: clamp(16px, 1.8vw, 22px);
  font-weight: 900;
  color: #fff;
  flex: 1;
  text-align: center;
  letter-spacing: 0.5px;
}

/* 리모컨 탐색 시 포커스 상태 (아케이드 네온 글로우) */
.option-card.focused,
.option-card:focus {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.35), rgba(20, 36, 88, 0.95)) !important;
  border-color: #00f0ff !important;
  transform: scale(1.025);
  box-shadow: 0 0 28px rgba(0, 240, 255, 0.7), inset 0 0 14px rgba(0, 240, 255, 0.35) !important;
  z-index: 2;
}

.option-card.focused .opt-key-badge,
.option-card:focus .opt-key-badge {
  background: var(--accent-cyan);
  color: #000;
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.8);
}

/* 정답/오답 강조 상태 */
.option-card.correct-choice {
  background: rgba(0, 255, 136, 0.25) !important;
  border-color: var(--accent-green) !important;
  box-shadow: var(--correct-glow) !important;
  animation: pulseCorrect 0.8s ease infinite alternate;
}

.option-card.wrong-choice {
  background: rgba(255, 51, 102, 0.25) !important;
  border-color: var(--accent-red) !important;
  box-shadow: var(--wrong-glow) !important;
}

@keyframes pulseCorrect {
  from { transform: scale(1.02); }
  to { transform: scale(1.05); }
}

/* === 주관식 말하기 & 듣기 평가 스테이지 스타일 === */
.speech-stage-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 6px 0;
}

.speech-prompt-card {
  width: 100%;
  background: rgba(14, 20, 44, 0.8);
  border: 2px dashed rgba(0, 240, 255, 0.4);
  border-radius: 14px;
  padding: 10px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  box-shadow: inset 0 0 25px rgba(0, 0, 0, 0.4);
}

/* 리스닝 다시 듣기 버튼 */
.audio-listen-btn {
  background: linear-gradient(135deg, #00d2ff, #0055ff);
  border: 2px solid transparent;
  color: #fff;
  border-radius: 30px;
  padding: 8px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  outline: none;
  margin-bottom: 6px;
  font-family: var(--font-main);
  font-size: 15px;
  font-weight: 800;
  box-shadow: 0 4px 14px rgba(0, 150, 255, 0.4);
  transition: all 0.2s ease;
}

.audio-listen-btn .sound-icon {
  font-size: 20px;
}

.audio-listen-btn:focus,
.audio-listen-btn.playing {
  transform: scale(1.04);
  border-color: #fff;
  box-shadow: var(--focus-glow);
  background: linear-gradient(135deg, var(--accent-magenta), #9900ff);
}

.speaking-hint-box {
  background: rgba(255, 200, 0, 0.15);
  border: 1.5px solid rgba(255, 200, 0, 0.4);
  color: var(--accent-gold);
  border-radius: 10px;
  padding: 6px 16px;
  font-size: 15px;
  font-weight: 800;
  margin-bottom: 6px;
}

/* 음성 파형 애니메이션 */
.voice-wave-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 26px;
  margin-bottom: 6px;
  opacity: 0.45;
  transition: opacity 0.3s ease;
}

.voice-wave-container.active {
  opacity: 1;
}

.wave-bar {
  width: 8px;
  height: 12px;
  background: rgba(0, 240, 255, 0.4);
  border-radius: 4px;
  transition: height 0.2s ease;
}

.voice-wave-container.active .wave-bar {
  animation: wavePulse 1.2s infinite ease-in-out;
}

.voice-wave-container.active .wave-bar:nth-child(1) { animation-delay: 0.0s; }
.voice-wave-container.active .wave-bar:nth-child(2) { animation-delay: 0.2s; }
.voice-wave-container.active .wave-bar:nth-child(3) { animation-delay: 0.4s; }
.voice-wave-container.active .wave-bar:nth-child(4) { animation-delay: 0.6s; }
.voice-wave-container.active .wave-bar:nth-child(5) { animation-delay: 0.8s; }

@keyframes wavePulse {
  0%, 100% { height: 12px; background: rgba(0, 240, 255, 0.5); }
  50% { height: 26px; background: var(--accent-magenta); box-shadow: 0 0 12px var(--accent-magenta); }
}

/* 주관식 말하기 전용 대형 마이크 토글 버튼 */
.speech-mic-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: linear-gradient(135deg, rgba(255, 59, 48, 0.2), rgba(255, 149, 0, 0.25));
  border: 1.5px solid rgba(255, 59, 48, 0.6);
  border-radius: 28px;
  color: #fff;
  font-family: var(--font-main);
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  outline: none;
  margin-bottom: 6px;
  box-shadow: 0 3px 12px rgba(255, 59, 48, 0.25);
  transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.speech-mic-toggle-btn .mic-icon {
  font-size: 18px;
}

.speech-mic-toggle-btn:hover,
.speech-mic-toggle-btn:focus {
  transform: translateY(-1px) scale(1.02);
  box-shadow: 0 4px 18px rgba(255, 59, 48, 0.45);
}

.speech-mic-toggle-btn.active {
  background: linear-gradient(135deg, rgba(52, 199, 89, 0.3), rgba(0, 240, 255, 0.3));
  border-color: var(--accent-green);
  box-shadow: 0 0 20px rgba(52, 199, 89, 0.4);
  animation: micActiveGlow 2s infinite alternate;
}

@keyframes micActiveGlow {
  from { box-shadow: 0 0 12px rgba(52, 199, 89, 0.3); }
  to { box-shadow: 0 0 24px rgba(52, 199, 89, 0.7); }
}

.speech-instruction {
  font-size: 15px;
  font-weight: 900;
  color: #fff;
  margin-bottom: 4px;
}

.speech-live-heard {
  font-size: 14px;
  color: var(--accent-cyan);
  min-height: 22px;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 10px;
  transition: all 0.2s ease;
  margin-bottom: 6px;
}

.speech-live-heard.live-listening {
  color: #00f0ff;
  background: rgba(0, 240, 255, 0.1);
  animation: pulseListen 1s infinite alternate;
}

.speech-live-heard.live-correct {
  color: var(--accent-green);
  background: rgba(52, 199, 89, 0.18);
  border: 1px solid rgba(52, 199, 89, 0.4);
  font-size: 15px;
}

.speech-live-heard.live-retry {
  color: var(--accent-gold);
  background: rgba(255, 204, 0, 0.15);
  border: 1px solid rgba(255, 204, 0, 0.35);
}

.speech-live-heard.live-error {
  color: var(--accent-red);
  background: rgba(255, 59, 48, 0.15);
}

@keyframes pulseListen {
  from { opacity: 0.75; }
  to { opacity: 1; text-shadow: 0 0 10px #00f0ff; }
}

/* 키보드 직접 입력 비상 탈출 폼 */
.speech-manual-fallback {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  width: 100%;
  max-width: 480px;
}

.speech-text-input {
  flex: 1;
  background: rgba(0, 0, 0, 0.45);
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  border-radius: 8px;
  padding: 6px 12px;
  font-family: var(--font-main);
  font-size: 14px;
  color: #fff;
  outline: none;
  transition: all 0.2s ease;
}

.speech-text-input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.35);
  background: rgba(0, 0, 0, 0.65);
}

.speech-submit-btn {
  background: linear-gradient(135deg, #00d2ff, #0055ff);
  border: none;
  color: #fff;
  padding: 6px 14px;
  border-radius: 8px;
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.2s ease;
}

.speech-submit-btn:hover {
  transform: scale(1.04);
  box-shadow: 0 4px 14px rgba(0, 150, 255, 0.4);
}

/* 문제 해설 박스 (컴팩트 & 겹침 방지) */
.explanation-box {
  background: rgba(12, 18, 42, 0.98);
  border: 2px solid var(--accent-cyan);
  border-radius: 14px;
  padding: 8px 16px;
  display: none;
  flex-direction: column;
  gap: 4px;
  animation: slideUp 0.25s ease-out;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.6);
}

.explanation-box.active {
  display: flex;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.exp-header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.exp-badge {
  font-size: 12px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 6px;
  white-space: nowrap;
}

.exp-badge.correct {
  background: var(--accent-green);
  color: #000;
}

.exp-badge.wrong {
  background: var(--accent-red);
  color: #fff;
}

.exp-title {
  font-weight: 800;
  font-size: 14px;
  color: var(--accent-gold);
}

.next-guide-tag {
  margin-left: auto;
  font-size: 12px;
  color: var(--accent-cyan);
  font-weight: 700;
  animation: blinkText 1.5s infinite;
  white-space: nowrap;
}

@keyframes blinkText {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.exp-content {
  font-size: clamp(13.5px, 1.4vw, 16px);
  color: #e2e8f0;
  line-height: 1.35;
  font-weight: 600;
}

/* 오버레이 (시작 및 결과창) */
.game-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(6, 9, 20, 0.92);
  backdrop-filter: blur(10px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.game-overlay.active {
  display: flex;
}

.overlay-card {
  background: #121832;
  border: 2px solid var(--accent-cyan);
  border-radius: 20px;
  padding: 32px 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 560px;
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.25);
}

.overlay-icon-badge {
  font-size: 48px;
  margin-bottom: 8px;
}

.overlay-title {
  font-family: var(--font-display);
  font-size: 30px;
  color: #fff;
  margin-bottom: 10px;
}

.overlay-desc {
  font-size: 17px;
  color: var(--text-dim);
  line-height: 1.55;
  margin-bottom: 22px;
}

.overlay-controls-guide {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 12px 20px;
  margin-bottom: 24px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 15px;
}

.key-pill {
  display: inline-block;
  background: rgba(0, 240, 255, 0.2);
  color: var(--accent-cyan);
  padding: 2px 8px;
  border-radius: 6px;
  font-weight: 700;
  margin-right: 6px;
}

/* TV 전용 버튼 */
.tv-btn {
  background: linear-gradient(135deg, #00d2ff, #0077ff);
  border: 3px solid transparent;
  color: #fff;
  font-family: var(--font-main);
  font-size: 19px;
  font-weight: 800;
  padding: 13px 32px;
  border-radius: 12px;
  cursor: pointer;
  outline: none;
  width: 100%;
  margin-bottom: 12px;
  transition: all 0.2s ease;
}

.tv-btn.voice-toggle-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--panel-border);
  color: var(--text-main);
  font-size: 16px;
  margin-bottom: 0;
}

.focusable:focus,
.tv-btn:focus {
  transform: scale(1.05);
  border-color: #fff !important;
  box-shadow: var(--focus-glow);
}

/* === 메인 영역 여백 확보 (하단 푸터 바 제거) === */

/* ========================================================
   1. 2인 가족 대전 모드 (Family Battle HUD)
   ======================================================== */
.battle-toggle-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mode-toggle-btn {
  background: rgba(18, 24, 52, 0.9);
  border: 1.5px solid var(--accent-gold);
  border-radius: 12px;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: #fff;
  font-weight: 800;
  font-size: 13px;
  transition: all 0.2s ease;
  box-shadow: 0 0 12px rgba(255, 200, 0, 0.2);
}

.mode-toggle-btn:hover,
.mode-toggle-btn:focus {
  background: rgba(255, 200, 0, 0.25);
  transform: scale(1.05);
  box-shadow: 0 0 18px var(--accent-gold);
}

.battle-scoreboard {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(10, 14, 30, 0.9);
  border: 1.5px solid var(--panel-border);
  border-radius: 12px;
  padding: 6px 14px;
}

.player-score-tag {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 15px;
}

.player-score-tag.p1 {
  color: var(--accent-cyan);
}

.player-score-tag.p2 {
  color: #ff3366;
}

.player-score-tag .p-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}

.player-score-tag.active-turn {
  background: rgba(255, 255, 255, 0.15);
  padding: 2px 8px;
  border-radius: 6px;
  animation: turnPulse 1.2s infinite;
}

@keyframes turnPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.06); }
  100% { transform: scale(1); }
}

.vs-tag {
  font-size: 11px;
  font-weight: 900;
  color: var(--text-dim);
}

/* ========================================================
   2. 단어 어순 배열 블록 자리바꾸기 (Scramble Track & Blocks)
   ======================================================== */
.scramble-stage-wrap {
  width: 100%;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin: 0;
  min-height: 0;
}

.scramble-prompt-card {
  width: 100%;
  height: auto;
  min-height: 180px;
  max-height: 100%;
  box-sizing: border-box;
  background: rgba(14, 20, 44, 0.85);
  border: 2px solid rgba(0, 240, 255, 0.35);
  border-radius: 14px;
  padding: 10px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5), inset 0 0 20px rgba(0, 240, 255, 0.05);
  overflow-y: auto;
}

.scramble-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin: 0;
  width: 100%;
  text-align: center;
  flex-shrink: 0;
}

.scramble-badge {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 900;
  color: var(--accent-gold);
  background: rgba(255, 200, 0, 0.15);
  border: 1px solid rgba(255, 200, 0, 0.4);
  padding: 2px 10px;
  border-radius: 14px;
  white-space: nowrap;
}

.scramble-translation-guide {
  font-size: clamp(14px, 1.6vw, 19px);
  font-weight: 800;
  color: #ffe680;
  line-height: 1.35;
  text-shadow: 0 0 12px rgba(255, 200, 0, 0.5);
  letter-spacing: 0.3px;
  text-align: center;
  width: 100%;
}

.scramble-sentence-preview {
  font-size: clamp(15px, 1.6vw, 20px);
  font-weight: 800;
  color: var(--accent-cyan);
  line-height: 1.35;
  margin: 0;
  text-align: center;
  min-height: 24px;
  padding: 2px 8px;
  text-shadow: 0 0 14px rgba(0, 240, 255, 0.4);
  flex-shrink: 0;
  width: 100%;
  box-sizing: border-box;
}

/* 단어 블록 트랙: 1줄 및 고등과정 2줄(wrap) 유연 배치 지원 */
.scramble-track {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  justify-content: center;
  align-items: center;
  align-content: flex-start;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  padding: 8px 10px;
  min-height: 56px;
  flex: 1;
  background: rgba(8, 12, 28, 0.6);
  border: 1.5px dashed rgba(100, 150, 255, 0.3);
  border-radius: 14px;
  margin: 0;
  transition: all 0.3s ease;
  overflow-y: auto;
  scrollbar-width: none;
}

/* 고등 과정 등 긴 문장/많은 블록 전용 콤팩트 스케일링 */
.scramble-track.dense-layout {
  gap: 6px 8px;
  padding: 6px 8px;
}

.scramble-track.dense-layout .scramble-block {
  padding: 5px clamp(8px, 1vw, 12px);
  gap: 6px;
  border-radius: 9px;
}

.scramble-track.dense-layout .block-word-text {
  font-size: clamp(13px, 1.4vw, 17px);
  line-height: 1.25;
}

.scramble-track.shake-anim {
  animation: shakeTrack 0.5s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
  border-color: var(--accent-red);
}

@keyframes shakeTrack {
  10%, 90% { transform: translate3d(-3px, 0, 0); }
  20%, 80% { transform: translate3d(5px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-6px, 0, 0); }
  40%, 60% { transform: translate3d(6px, 0, 0); }
}

/* 단어 블록 개별 카드: 5~6단어가 1줄에 넉넉히 들어가도록 최적화 */
.scramble-block {
  background: linear-gradient(145deg, rgba(26, 38, 80, 0.95), rgba(16, 24, 54, 0.95));
  border: 2px solid rgba(120, 160, 255, 0.4);
  border-radius: 12px;
  padding: 8px clamp(10px, 1.3vw, 16px);
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: grab;
  user-select: none;
  flex: 0 1 auto;
  white-space: nowrap;
  transition: all 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
  position: relative;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.scramble-block:active {
  cursor: grabbing;
}

.scramble-block:hover {
  transform: translateY(-2px);
  border-color: var(--accent-cyan);
  box-shadow: 0 6px 16px rgba(0, 240, 255, 0.3);
}

.scramble-block .block-num-pill {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 800;
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.1);
  padding: 1px 6px;
  border-radius: 5px;
}

.scramble-block .block-word-text {
  font-size: clamp(17px, 1.9vw, 24px);
  font-weight: 900;
  color: #fff;
  letter-spacing: 0.3px;
}

.scramble-block .block-drag-handle {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.3);
  margin-left: 2px;
}

/* 리모컨 포커스 상태 */
.scramble-block.focused {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 18px var(--accent-cyan);
  transform: scale(1.04);
  z-index: 2;
}

/* 리모컨으로 집어 든(Lifted) 공중 부양 상태 */
.scramble-block.lifted {
  border-color: var(--accent-gold) !important;
  background: linear-gradient(145deg, rgba(50, 40, 10, 0.95), rgba(70, 50, 10, 0.95)) !important;
  transform: translateY(-6px) scale(1.08) !important;
  box-shadow: 0 10px 22px rgba(255, 200, 0, 0.5), 0 0 16px var(--accent-gold) !important;
  animation: liftedBob 1.2s infinite ease-in-out alternate;
  z-index: 10;
}

@keyframes liftedBob {
  0% { transform: translateY(-5px) scale(1.06); }
  100% { transform: translateY(-9px) scale(1.09); }
}

/* 마우스 드래그 중인 상태 */
.scramble-block.dragging {
  opacity: 0.45;
  transform: scale(0.95) rotate(-3deg);
}

/* 마우스 드래그 오버된 타겟 자리 */
.scramble-block.drag-hover {
  border-color: var(--accent-green) !important;
  box-shadow: 0 0 24px var(--accent-green) !important;
  transform: scale(1.06);
}

/* 정답 시 블록 전체 그린 글로우 */
.scramble-block.correct-glow {
  border-color: var(--accent-green) !important;
  background: rgba(0, 255, 136, 0.2) !important;
  box-shadow: 0 0 24px var(--accent-green) !important;
}

/* 액션 버튼 바 */
.scramble-action-bar {
  display: flex;
  gap: 14px;
  justify-content: center;
  align-items: center;
  margin-top: auto;
  padding-top: 6px;
  flex-shrink: 0;
  width: 100%;
}

.scramble-btn {
  padding: 8px 22px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  outline: none;
  transition: all 0.2s ease;
  border: none;
}

.scramble-btn.secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-dim);
  border: 1px solid var(--panel-border);
}

.scramble-btn.secondary:hover,
.scramble-btn.secondary:focus {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  transform: scale(1.04);
}

.scramble-btn.primary {
  background: linear-gradient(90deg, var(--accent-cyan), #0077ff);
  color: #000;
  font-weight: 900;
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.4);
}

.scramble-btn.primary:hover,
.scramble-btn.primary:focus {
  transform: scale(1.05);
  box-shadow: 0 0 26px var(--accent-cyan);
}

.scramble-btn.primary.ready-pulse {
  background: linear-gradient(90deg, var(--accent-green), #00bb66);
  animation: readyGlow 1s infinite alternate;
}

@keyframes readyGlow {
  0% { box-shadow: 0 0 12px var(--accent-green); }
  100% { box-shadow: 0 0 28px var(--accent-green); }
}

/* ========================================================
   3. 문장 전체 섀도잉 & 발음 점수 평가 (Shadowing Panel)
   ======================================================== */
.shadowing-panel {
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed rgba(255, 255, 255, 0.15);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.shadowing-header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.shadowing-badge {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 900;
  color: #ff007f;
  background: rgba(255, 0, 127, 0.15);
  border: 1px solid rgba(255, 0, 127, 0.4);
  padding: 2px 8px;
  border-radius: 10px;
  white-space: nowrap;
}

.shadowing-guide {
  font-size: 11.5px;
  color: var(--text-dim);
  white-space: nowrap;
}

.shadowing-controls {
  display: flex;
  gap: 8px;
}

.shadow-btn {
  padding: 5px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.shadow-btn.shadow-listen {
  background: rgba(0, 240, 255, 0.15);
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
}

.shadow-btn.shadow-record {
  background: rgba(255, 0, 127, 0.15);
  color: #ff007f;
  border: 1px solid #ff007f;
}

.shadow-btn.shadow-record.recording {
  background: #ff007f;
  color: #fff;
  animation: recPulse 1s infinite alternate;
}

.shadow-btn.shadow-user-voice {
  background: rgba(0, 240, 255, 0.15);
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.shadow-btn.shadow-user-voice.ready {
  background: rgba(0, 240, 255, 0.35);
  border-color: #00f0ff;
  color: #fff;
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.6);
  animation: userVoiceGlow 1.5s infinite alternate;
}

.shadow-btn.shadow-user-voice.playing {
  background: var(--accent-cyan) !important;
  color: #080a16 !important;
  border-color: #fff !important;
  box-shadow: 0 0 24px var(--accent-cyan) !important;
}

.shadow-btn.shadow-compare {
  background: rgba(255, 200, 0, 0.15);
  color: var(--accent-gold);
  border: 1px solid var(--accent-gold);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.shadow-btn.shadow-compare:hover,
.shadow-btn.shadow-compare:focus {
  background: rgba(255, 200, 0, 0.35);
  box-shadow: 0 0 16px var(--accent-gold);
  color: #fff;
}

@keyframes userVoiceGlow {
  0% { box-shadow: 0 0 8px #00f0ff; }
  100% { box-shadow: 0 0 22px #00f0ff; }
}

@keyframes recPulse {
  0% { box-shadow: 0 0 8px #ff007f; }
  100% { box-shadow: 0 0 20px #ff007f; }
}

.shadow-btn:hover,
.shadow-btn:focus {
  transform: scale(1.05);
}

.shadow-result-box {
  background: rgba(12, 18, 40, 0.95);
  border: 1.5px solid var(--accent-gold);
  border-radius: 14px;
  padding: 12px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  animation: fadeIn 0.3s ease;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.shadow-result-header {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.score-stars {
  font-size: 18px;
  filter: drop-shadow(0 0 6px #ffc800);
}

.score-number-pill {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 900;
  color: var(--accent-gold);
}

.shadow-heard-text {
  font-size: 14px;
  color: #fff;
  font-style: italic;
}

.shadow-result-tip {
  font-size: 13px;
  color: #a8bfe8;
  padding-top: 4px;
  border-top: 1px dashed rgba(255, 200, 0, 0.2);
}

.audio-wave-anim {
  display: none;
  align-items: center;
  gap: 2.5px;
  height: 12px;
  margin-left: 2px;
}

.shadow-btn.playing .audio-wave-anim {
  display: inline-flex;
}

.audio-wave-anim i {
  display: block;
  width: 2.5px;
  height: 100%;
  background: #080a16;
  border-radius: 2px;
  animation: soundWave 0.7s infinite ease-in-out alternate;
}

.audio-wave-anim i:nth-child(1) { animation-delay: 0.1s; }
.audio-wave-anim i:nth-child(2) { animation-delay: 0.3s; }
.audio-wave-anim i:nth-child(3) { animation-delay: 0.5s; }
.audio-wave-anim i:nth-child(4) { animation-delay: 0.2s; }

@keyframes soundWave {
  0% { height: 3px; }
  100% { height: 12px; }
}

/* ========================================================
   문법 개념 치트시트 모달 (Grammar Concept Modal) 스타일
   ======================================================== */
.concept-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(4, 7, 18, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeInModal 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.concept-modal-card {
  width: 90%;
  max-width: 820px;
  max-height: 88vh;
  background: linear-gradient(145deg, rgba(20, 28, 60, 0.96), rgba(12, 16, 36, 0.98));
  border: 2px solid rgba(0, 240, 255, 0.4);
  border-radius: 24px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 35px rgba(0, 240, 255, 0.25);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: scaleUpModal 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.concept-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  border-bottom: 1px solid rgba(90, 120, 200, 0.25);
  background: rgba(10, 15, 35, 0.6);
}

.concept-header-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.concept-grade-badge {
  font-size: 13px;
  font-weight: 800;
  color: var(--accent-gold);
  background: rgba(255, 200, 0, 0.15);
  border: 1px solid rgba(255, 200, 0, 0.4);
  border-radius: 8px;
  padding: 4px 12px;
}

.concept-title {
  font-size: 22px;
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.5px;
}

.concept-close-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
  outline: none;
}

.concept-close-btn:hover,
.concept-close-btn:focus {
  background: rgba(255, 51, 102, 0.8);
  border-color: #ff3366;
  transform: scale(1.1);
  box-shadow: 0 0 15px rgba(255, 51, 102, 0.5);
}

.concept-modal-body {
  padding: 24px 28px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.concept-modal-body::-webkit-scrollbar {
  width: 8px;
}

.concept-modal-body::-webkit-scrollbar-track {
  background: rgba(10, 15, 30, 0.5);
  border-radius: 4px;
}

.concept-modal-body::-webkit-scrollbar-thumb {
  background: rgba(0, 240, 255, 0.3);
  border-radius: 4px;
}

.concept-modal-body::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 240, 255, 0.6);
}

.concept-section {
  background: rgba(18, 24, 52, 0.5);
  border: 1px solid rgba(90, 120, 200, 0.2);
  border-radius: 16px;
  padding: 16px 20px;
}

.concept-section-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--accent-cyan);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.formula-box {
  font-size: 21px;
  font-weight: 900;
  color: var(--accent-gold);
  background: rgba(255, 200, 0, 0.1);
  border: 1.5px dashed rgba(255, 200, 0, 0.5);
  border-radius: 12px;
  padding: 14px 20px;
  text-align: center;
  letter-spacing: 0.5px;
  text-shadow: 0 0 12px rgba(255, 200, 0, 0.3);
}

.usage-text {
  font-size: 15px;
  color: #d0d8f0;
  margin-top: 10px;
  line-height: 1.5;
}

.concept-rules-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.concept-rules-list li {
  font-size: 15px;
  color: #e4ecff;
  line-height: 1.5;
  padding-left: 20px;
  position: relative;
}

.concept-rules-list li::before {
  content: '✔';
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
  font-weight: bold;
}

.trap-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 4px;
}

.trap-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
}

.trap-item.trap-wrong {
  background: rgba(255, 51, 102, 0.12);
  border: 1px solid rgba(255, 51, 102, 0.35);
  color: #ff88a3;
}

.trap-item.trap-correct {
  background: rgba(0, 255, 136, 0.12);
  border: 1px solid rgba(0, 255, 136, 0.35);
  color: #a3ffcf;
}

.trap-badge {
  font-size: 12px;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: 6px;
  flex-shrink: 0;
}

.wrong-badge {
  background: #ff3366;
  color: #fff;
}

.correct-badge {
  background: #00ff88;
  color: #080a16;
}

.concept-examples-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.concept-examples-list li {
  font-size: 15px;
  color: #e4ecff;
  background: rgba(255, 255, 255, 0.04);
  padding: 10px 16px;
  border-radius: 10px;
  border-left: 3.5px solid var(--accent-cyan);
}

.concept-modal-footer {
  padding: 16px 28px;
  border-top: 1px solid rgba(90, 120, 200, 0.25);
  background: rgba(10, 15, 35, 0.6);
  display: flex;
  justify-content: center;
}

.concept-ok-btn {
  width: 100%;
  max-width: 440px;
  padding: 14px 28px;
  background: linear-gradient(135deg, #00f0ff, #00a8ff);
  border: none;
  border-radius: 14px;
  color: #080a16;
  font-size: 17px;
  font-weight: 900;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
}

.concept-ok-btn .key-hint {
  font-size: 13px;
  font-weight: 700;
  opacity: 0.85;
}

.concept-ok-btn:hover,
.concept-ok-btn:focus {
  transform: scale(1.03);
  box-shadow: 0 0 32px rgba(0, 240, 255, 0.85);
  background: linear-gradient(135deg, #33f5ff, #00c3ff);
  outline: none;
}

@keyframes fadeInModal {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleUpModal {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

/* ========================================================
   조작 및 사용법 도움말 모달 (Help Modal) 전용 디자인
   ======================================================== */
.help-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(4, 7, 18, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeInModal 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.help-modal-card {
  width: 90%;
  max-width: 860px;
  max-height: 88vh;
  background: linear-gradient(145deg, rgba(20, 28, 60, 0.96), rgba(12, 16, 36, 0.98));
  border: 2px solid rgba(255, 200, 0, 0.45);
  border-radius: 24px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 35px rgba(255, 200, 0, 0.25);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: scaleUpModal 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.help-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 26px;
  border-bottom: 1px solid rgba(90, 120, 200, 0.25);
  background: rgba(10, 15, 35, 0.6);
}

.help-header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.help-badge {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 900;
  color: var(--accent-gold);
  background: rgba(255, 200, 0, 0.15);
  border: 1px solid rgba(255, 200, 0, 0.4);
  border-radius: 8px;
  padding: 3px 10px;
  letter-spacing: 1px;
}

.help-title {
  font-size: 20px;
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.5px;
}

.help-close-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
  outline: none;
}

.help-close-btn:hover,
.help-close-btn:focus {
  background: rgba(255, 51, 102, 0.8);
  border-color: #ff3366;
  transform: scale(1.1);
  box-shadow: 0 0 15px rgba(255, 51, 102, 0.5);
}

.help-modal-body {
  padding: 20px 26px;
  overflow-y: auto;
}

.help-modal-body::-webkit-scrollbar {
  width: 8px;
}

.help-modal-body::-webkit-scrollbar-thumb {
  background: rgba(255, 200, 0, 0.3);
  border-radius: 4px;
}

.help-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.help-card {
  background: rgba(18, 24, 52, 0.55);
  border: 1px solid rgba(90, 120, 200, 0.25);
  border-radius: 16px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.help-card-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--accent-gold);
  border-bottom: 1px solid rgba(255, 200, 0, 0.25);
  padding-bottom: 6px;
}

.help-item-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.help-item-list li {
  font-size: 13.5px;
  color: #dce6ff;
  line-height: 1.45;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.help-item-list li strong {
  color: var(--accent-cyan);
}

.key-pill {
  display: inline-block;
  background: rgba(0, 240, 255, 0.15);
  border: 1px solid rgba(0, 240, 255, 0.35);
  color: var(--accent-cyan);
  padding: 2px 7px;
  border-radius: 6px;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 800;
  white-space: nowrap;
  flex-shrink: 0;
}

.cmd-pill {
  display: inline-block;
  background: rgba(0, 255, 136, 0.15);
  border: 1px solid rgba(0, 255, 136, 0.4);
  color: var(--accent-green);
  padding: 2px 7px;
  border-radius: 6px;
  font-family: var(--font-main);
  font-size: 11.5px;
  font-weight: 800;
  white-space: nowrap;
  flex-shrink: 0;
}

.help-modal-footer {
  padding: 14px 26px;
  border-top: 1px solid rgba(90, 120, 200, 0.25);
  background: rgba(10, 15, 35, 0.6);
  display: flex;
  justify-content: center;
}

.help-ok-btn {
  width: 100%;
  max-width: 440px;
  padding: 12px 26px;
  background: linear-gradient(135deg, #ffc800, #ff9900);
  border: none;
  border-radius: 14px;
  color: #080a16;
  font-size: 16px;
  font-weight: 900;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
  box-shadow: 0 0 20px rgba(255, 200, 0, 0.4);
}

.help-ok-btn .key-hint {
  font-size: 12px;
  font-weight: 700;
  opacity: 0.85;
}

.help-ok-btn:hover,
.help-ok-btn:focus {
  transform: scale(1.03);
  box-shadow: 0 0 32px rgba(255, 200, 0, 0.85);
  background: linear-gradient(135deg, #ffd700, #ffa500);
  outline: none;
}

/* ========================================================
   AI 원어민 발음 정밀 클리닉 & 음소 교정 코칭 (V-B, P-F, R-L, 강세)
   ======================================================== */
.pronunciation-clinic-panel {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1.5px dashed rgba(0, 240, 255, 0.3);
  animation: fadeIn 0.3s ease;
}

.clinic-wrap {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.clinic-header {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.clinic-main-badge {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.25), rgba(121, 40, 202, 0.35));
  border: 1.5px solid var(--accent-cyan);
  color: var(--accent-cyan);
  font-size: 13px;
  font-weight: 900;
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: 0.5px;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.3);
}

.clinic-subtitle {
  font-size: 13px;
  color: #a8bfe8;
  font-weight: 600;
}

.clinic-words-track {
  background: rgba(8, 12, 28, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.clinic-track-label {
  font-size: 12px;
  color: #798bb0;
  font-weight: 700;
}

.clinic-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.word-tag {
  font-size: 13px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  font-family: var(--font-body);
}

.word-tag.matched {
  background: rgba(0, 255, 136, 0.15);
  color: #00ff88;
  border: 1px solid rgba(0, 255, 136, 0.4);
}

.word-tag.missed {
  background: rgba(255, 0, 127, 0.15);
  color: #ff5599;
  border: 1px solid rgba(255, 0, 127, 0.4);
}

.clinic-cards-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.clinic-card {
  background: rgba(15, 22, 48, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 4px solid var(--accent-cyan);
  border-radius: 10px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.clinic-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.clinic-badge {
  font-size: 11px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 6px;
  letter-spacing: 0.5px;
}

.clinic-card-title {
  font-size: 14px;
  font-weight: 800;
  color: #fff;
}

.clinic-word-chips {
  font-size: 12px;
  color: #ccd9ff;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.chip-item {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-family: monospace;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 4px;
}

.chip-item.r {
  color: #ff5599;
  border-color: rgba(255, 0, 127, 0.4);
  background: rgba(255, 0, 127, 0.1);
}

.chip-item.l {
  color: #00f0ff;
  border-color: rgba(0, 240, 255, 0.4);
  background: rgba(0, 240, 255, 0.1);
}

.clinic-card-body {
  font-size: 13px;
  line-height: 1.5;
  color: #d1dcfa;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.clinic-rule {
  color: #e2e8f0;
}

.clinic-habit {
  color: #ffa07a;
}

.clinic-action {
  color: var(--accent-green);
}

.stress-card {
  border-left-color: #ffc800 !important;
}

.stress-badge {
  background: rgba(255, 200, 0, 0.18) !important;
  color: #ffc800 !important;
  border: 1px solid rgba(255, 200, 0, 0.4) !important;
}

.stress-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stress-item-pill {
  background: rgba(255, 200, 0, 0.08);
  border: 1px solid rgba(255, 200, 0, 0.25);
  padding: 5px 10px;
  border-radius: 6px;
  font-size: 13px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.stress-orig {
  font-weight: 700;
  color: #a8bfe8;
}

.stress-syll {
  font-weight: 900;
  color: #ffc800;
  letter-spacing: 0.8px;
  font-family: monospace;
}

.stress-tip {
  font-size: 12px;
  color: #ccd9ff;
}

/* ========================================================
   PC & 스마트폰(모바일 웹) 반응형 미디어 쿼리 및 터치 최적화
   ======================================================== */

/* 모바일 터치 반응 속도 최적화 (300ms 딜레이 제거 및 하이라이트 투명화) */
button,
.focusable,
.option-card,
.scramble-block,
.grade-tab,
.voice-status-card {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

/* PC 와이드 화면 (가로 961px 이상): 본문 세로 스크롤바 숨김 + HUD 1행 유지 */
@media (min-width: 961px) {
  body {
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  body::-webkit-scrollbar {
    display: none;
  }
  /* PC: header-left-group이 mic-pill을 품고 있으므로 hud-header 정렬 재조정 */
  .hud-header {
    flex-direction: row;
    align-items: center;
  }
  .header-left-group {
    flex: 1;
    justify-content: flex-start;
  }
  .header-mic-pill {
    margin-left: 0;
    flex-shrink: 0;
  }
}

/* 태블릿 및 스마트폰 화면 (가로 960px 이하): 좌우 스크롤 스냅 듀얼 뷰포트 & 탭 활성화 */
@media (max-width: 960px) {
  .mobile-viewport-tabs {
    display: flex;
  }

  .quest-dual-viewport {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 0;
  }

  .quest-dual-viewport::-webkit-scrollbar {
    display: none;
  }

  .quest-panel {
    flex: 0 0 100%;
    min-width: 100%;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    border-radius: 14px;
    padding: 14px;
    box-sizing: border-box;
  }

  .panel-explain {
    border-left: 1px solid var(--panel-border);
  }

  .options-grid {
    gap: 10px;
  }
}

/* 스마트폰 세로 모드 (가로 640px 이하): 1열 최적화 및 터치 친화적 UI */
@media (max-width: 640px) {
  .app-container,
  .tv-safe-area {
    padding: 6px 8px 16px;
    gap: 6px;
    min-height: 100vh;
  }

  /* 헤더 모바일 2줄 레이아웃: 1행(로고+마이크), 2행(통계 바) */
  .hud-header {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding: 6px 10px 4px;
    gap: 4px;
    border-radius: 12px;
  }

  /* 1행: 로고 + 마이크 */
  .header-left-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    width: 100%;
  }

  .hamburger-btn {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    flex-shrink: 0;
  }

  .logo-area .game-badge {
    font-size: 8px;
    letter-spacing: 1px;
  }

  .logo-area .game-title {
    font-size: 13px;
    gap: 5px;
  }

  .grade-tag {
    font-size: 9px;
    padding: 1px 5px;
  }

  /* 마이크 버튼: 1행 오른쪽 끝 */
  .header-mic-pill,
  .voice-status-card {
    margin-left: auto;
    flex-shrink: 0;
    padding: 3px 8px;
    font-size: 11px;
    gap: 5px;
    border-radius: 8px;
  }

  /* 2행: 통계 카드 한 줄 전체 너비 */
  .hud-stats {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3px;
    width: 100%;
  }

  .hud-stats .stat-card {
    flex: 1;
    padding: 2px 4px;
    min-width: 0;
    align-items: center;
    text-align: center;
    border-radius: 6px;
  }

  .hud-stats .stat-label {
    font-size: 7.5px;
    letter-spacing: 0.5px;
  }

  .hud-stats .stat-value {
    font-size: 11px;
  }

  .timer-card {
    flex: 1.4;
    min-width: 0;
    padding: 2px 4px;
  }

  .timer-bar-wrap {
    width: 100%;
    height: 4px;
  }

  .timer-number {
    font-size: 10px;
  }

  /* 뷰포트 패널 모바일 최적화 */
  .quest-panel {
    padding: 10px 12px;
    border-radius: 12px;
    gap: 8px;
  }

  .category-pill-wrap {
    margin-bottom: 2px;
  }

  .category-pill {
    font-size: 12px;
    padding: 3px 10px;
  }

  .concept-guide-btn {
    font-size: 11px;
    padding: 3px 10px;
  }

  .hero-question-showcase {
    margin-bottom: 6px;
  }

  .sentence-board {
    padding: 10px 12px;
    border-radius: 12px;
    min-height: auto;
  }

  .target-sentence {
    font-size: 16px;
    line-height: 1.45;
  }

  .blank-box {
    padding: 1px 6px;
    font-size: 15px;
    min-width: 44px;
    margin: 0 4px;
  }

  .sentence-translation {
    font-size: 12px;
    margin-top: 3px;
  }

  /* 모바일 1열 보기 카드 */
  .options-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    gap: 6px;
  }

  .option-card {
    padding: 9px 12px;
    min-height: 46px;
    border-radius: 10px;
  }

  .option-card .opt-key-badge {
    width: 28px;
    height: 28px;
    font-size: 12px;
  }

  .option-card .opt-text {
    font-size: 17px;
  }

  /* 어순 배열 모바일 최적화 */
  .scramble-prompt-card {
    padding: 10px;
  }

  .scramble-sentence-preview {
    font-size: 13px;
    padding: 6px;
  }

  .scramble-track {
    gap: 5px;
    padding: 6px 4px;
  }

  .scramble-block {
    padding: 6px 10px;
    font-size: 13px;
    border-radius: 8px;
  }

  .scramble-action-bar {
    flex-direction: column;
    gap: 6px;
  }

  .scramble-btn {
    width: 100%;
    justify-content: center;
    height: 42px;
    font-size: 13px;
  }

  /* 섀도잉 컨트롤 모바일 2x2 그리드 */
  .shadowing-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    width: 100%;
  }

  .shadow-btn {
    width: 100%;
    padding: 8px 4px;
    font-size: 11px;
    justify-content: center;
  }

  /* 하단 네비게이션 바 모바일 콤팩트 */
  .bottom-nav-bar {
    padding: 6px 8px;
    gap: 6px;
    border-radius: 10px;
  }

  .nav-arrow-btn {
    padding: 6px 10px;
    font-size: 12px;
    gap: 4px;
  }

  .nav-question-track {
    gap: 4px;
    padding: 2px 4px;
  }

  .nav-dot {
    width: 22px;
    height: 22px;
    font-size: 9.5px;
  }

  /* 모달 팝업 모바일 최적화 */
  .concept-modal-card,
  .help-modal-card {
    width: 95vw;
    max-height: 92vh;
    padding: 12px;
    margin: 3vh auto;
  }

  .help-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .overlay-card {
    width: 94%;
    max-width: 380px;
    padding: 18px 14px;
  }

  .overlay-title {
    font-size: 20px;
  }

  .overlay-desc {
    font-size: 12.5px;
    line-height: 1.5;
  }

  .overlay-controls-guide {
    gap: 5px;
    margin: 10px 0 14px 0;
  }

  .guide-item {
    font-size: 11px;
  }
}

/* AI 실시간 적응형 레벨 알림 토스트 */
.adaptive-toast {
  position: fixed;
  top: 75px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: rgba(10, 15, 36, 0.95);
  border: 1.5px solid var(--accent-cyan);
  color: #fff;
  padding: 12px 28px;
  border-radius: 30px;
  font-family: var(--font-main);
  font-size: 16px;
  font-weight: 800;
  box-shadow: 0 8px 32px rgba(0, 240, 255, 0.35);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: all 0.35s cubic-bezier(0.2, 0.9, 0.2, 1);
  z-index: 9999;
  letter-spacing: 0.5px;
}

.adaptive-toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}


/* === 화면 확대 (Zoom-in 110%~150%) 및 랩탑 세로 뷰포트 맞춤형 최적화 === */
@media (max-height: 820px) {
  .app-container,
  .tv-safe-area {
    padding: 6px 12px;
    gap: 6px;
  }

  .hud-header {
    padding: 4px 12px;
    gap: 8px;
  }

  .game-title {
    font-size: 16px;
  }

  .stat-card {
    padding: 2px 8px;
    min-width: 65px;
  }

  .stat-value {
    font-size: 14px;
  }

  .quest-dual-viewport {
    gap: 8px;
  }

  .quest-panel {
    padding: 8px 12px;
    gap: 6px;
  }

  .category-pill {
    font-size: 13px;
    padding: 3px 10px;
  }

  .concept-guide-btn {
    font-size: 11.5px;
    padding: 3px 8px;
  }

  .sentence-board {
    min-height: 54px;
    padding: 8px 14px;
  }

  .target-sentence {
    font-size: clamp(17px, 2vw, 24px);
  }

  .sentence-translation {
    font-size: clamp(12px, 1.2vw, 14px);
  }

  .options-grid {
    gap: 6px;
  }

  .option-card {
    padding: 6px 12px;
  }

  .option-card .opt-key-badge {
    width: 26px;
    height: 26px;
    font-size: 13px;
  }

  .option-card .opt-text {
    font-size: clamp(16px, 1.8vw, 22px);
  }

  .bottom-nav-bar {
    padding: 4px 10px;
    margin-top: 1px;
  }

  .nav-arrow-btn {
    padding: 4px 10px;
    font-size: 11.5px;
  }

  .nav-dot {
    width: 22px;
    height: 22px;
    font-size: 9.5px;
  }
}

@media (max-height: 680px) {
  .app-container,
  .tv-safe-area {
    padding: 4px 8px;
    gap: 4px;
  }

  .hud-header {
    padding: 3px 8px;
  }

  .stat-card {
    padding: 1px 6px;
  }

  .sentence-board {
    min-height: 46px;
    padding: 6px 10px;
  }

  .options-grid {
    gap: 4px;
  }

  .option-card {
    padding: 4px 8px;
  }
}


/* ========================================================
   AI LEARNING ENGINE (5-in-1 실시간 AI 학습 시스템 스타일)
   ======================================================== */

/* 1. 소크라테스 힌트 버튼 & 말풍선 */
.ai-socratic-btn {
  background: linear-gradient(135deg, rgba(142, 68, 173, 0.25), rgba(41, 128, 185, 0.25)) !important;
  border-color: #a29bfe !important;
  box-shadow: 0 0 10px rgba(162, 155, 254, 0.3) !important;
}

.ai-socratic-btn:hover,
.ai-socratic-btn:focus {
  background: linear-gradient(135deg, rgba(142, 68, 173, 0.5), rgba(41, 128, 185, 0.5)) !important;
  border-color: #fff !important;
  box-shadow: 0 0 18px #a29bfe !important;
}

.ai-socratic-bubble {
  width: 100%;
  margin-top: 6px;
  margin-bottom: 6px;
  animation: fadeIn 0.25s ease-out;
}

.socratic-card {
  width: 100%;
  background: linear-gradient(135deg, rgba(20, 26, 60, 0.96), rgba(14, 18, 44, 0.98));
  border: 2px solid #a29bfe;
  border-radius: 14px;
  padding: 10px 16px;
  box-shadow: 0 8px 24px rgba(162, 155, 254, 0.25), inset 0 0 15px rgba(162, 155, 254, 0.1);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sc-tutor-badge {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sc-avatar {
  font-size: 18px;
}

.sc-name {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 800;
  color: #a29bfe;
  letter-spacing: 0.5px;
}

.sc-step-pill {
  font-size: 11px;
  background: rgba(162, 155, 254, 0.2);
  color: #dcdde1;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 700;
}

.sc-close-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 16px;
  cursor: pointer;
  padding: 2px 6px;
}

.sc-close-btn:hover {
  color: #fff;
}

.sc-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sc-question-clue {
  font-size: 13.5px;
  font-weight: 800;
  color: #ffeaa7;
}

.sc-guiding-box {
  background: rgba(0, 0, 0, 0.35);
  border-left: 3px solid #a29bfe;
  padding: 6px 12px;
  border-radius: 0 8px 8px 0;
  font-size: 13px;
  color: #f5f6fa;
  line-height: 1.4;
}

.sc-guiding-box strong {
  color: var(--accent-cyan);
}

.sc-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.sc-action-btn {
  padding: 5px 12px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.sc-action-btn.tts-btn {
  background: rgba(255, 255, 255, 0.1);
  color: #dcdde1;
}

.sc-action-btn.next-btn {
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  color: #fff;
  box-shadow: 0 0 10px rgba(108, 92, 231, 0.4);
}

.sc-action-btn.done-btn {
  background: linear-gradient(135deg, #00b894, #55efc4);
  color: #000;
  font-weight: 900;
}

/* 2. AI 오답 심리 역추적 카드 */
.ai-misconception-card {
  background: linear-gradient(135deg, rgba(45, 12, 54, 0.95), rgba(28, 10, 42, 0.95));
  border: 1.5px solid #ff007f;
  border-radius: 12px;
  padding: 8px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 4px;
  box-shadow: 0 4px 16px rgba(255, 0, 127, 0.2);
  animation: slideUp 0.25s ease-out;
}

.aim-header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.aim-badge {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 900;
  color: #fff;
  background: linear-gradient(90deg, #ff007f, #9900ff);
  padding: 2px 8px;
  border-radius: 8px;
  letter-spacing: 0.5px;
}

.aim-summary {
  font-size: 12.5px;
  font-weight: 800;
  color: #ff99cc;
}

.aim-text {
  font-size: 13px;
  color: #f1f2f6;
  line-height: 1.4;
}

.aim-text strong {
  color: var(--accent-gold);
}

/* 3. AI 즉석 쌍둥이 확인 문항 카드 */
.ai-twin-card {
  background: linear-gradient(135deg, rgba(10, 24, 52, 0.95), rgba(8, 18, 40, 0.98));
  border: 1.5px dashed var(--accent-cyan);
  border-radius: 12px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 6px;
  box-shadow: 0 4px 18px rgba(0, 240, 255, 0.15);
  animation: slideUp 0.25s ease-out;
}

.twin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.twin-badge {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 900;
  color: #000;
  background: var(--accent-cyan);
  padding: 2px 8px;
  border-radius: 8px;
  letter-spacing: 0.5px;
}

.twin-tag {
  font-size: 11px;
  font-weight: 800;
  color: var(--accent-gold);
}

.twin-sentence {
  font-size: 14.5px;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.3;
}

.twin-blank {
  color: var(--accent-gold);
  border-bottom: 2px solid var(--accent-gold);
  padding: 0 4px;
  font-weight: 900;
}

.twin-translation {
  font-size: 12px;
  color: var(--text-dim);
}

.twin-options-grid {
  display: flex;
  gap: 8px;
  margin-top: 2px;
}

.twin-opt-btn {
  flex: 1;
  background: rgba(255, 255, 255, 0.08);
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  padding: 6px 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  color: #fff;
  font-family: var(--font-main);
  font-size: 13.5px;
  font-weight: 800;
  transition: all 0.18s ease;
  outline: none;
}

.twin-opt-btn:hover:not(:disabled),
.twin-opt-btn:focus:not(:disabled) {
  border-color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.15);
  transform: translateY(-1px);
}

.twin-opt-btn.correct {
  background: rgba(0, 255, 136, 0.25) !important;
  border-color: var(--accent-green) !important;
  color: var(--accent-green) !important;
}

.twin-opt-btn.wrong {
  background: rgba(255, 51, 102, 0.25) !important;
  border-color: var(--accent-red) !important;
  color: var(--accent-red) !important;
}

.twin-opt-badge {
  font-family: var(--font-display);
  font-size: 11px;
  opacity: 0.7;
}

.twin-feedback {
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 12px;
  line-height: 1.4;
  margin-top: 4px;
}

.twin-feedback.correct {
  background: rgba(0, 255, 136, 0.15);
  border: 1px solid rgba(0, 255, 136, 0.4);
  color: #b8ffdb;
}

.twin-feedback.wrong {
  background: rgba(255, 51, 102, 0.15);
  border: 1px solid rgba(255, 51, 102, 0.4);
  color: #ffccd7;
}

/* 4. AI 실시간 피치 억양 컨투어 */
.pitch-contour-card {
  background: rgba(8, 14, 32, 0.95);
  border: 1.5px solid var(--accent-cyan);
  border-radius: 12px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 8px;
  box-shadow: 0 4px 18px rgba(0, 240, 255, 0.2);
}

.pc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pc-title-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

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

.pc-title {
  font-size: 13px;
  font-weight: 800;
  color: #fff;
}

.pc-score-pill {
  font-size: 11.5px;
  background: rgba(0, 240, 255, 0.15);
  border: 1px solid rgba(0, 240, 255, 0.35);
  padding: 2px 8px;
  border-radius: 8px;
  color: var(--accent-cyan);
}

.pc-score-pill strong {
  color: #fff;
}

.pc-legend {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 10.5px;
  color: var(--text-dim);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.legend-item .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.legend-item .native-dot { background: var(--accent-cyan); box-shadow: 0 0 6px var(--accent-cyan); }
.legend-item .user-dot { background: var(--accent-gold); box-shadow: 0 0 6px var(--accent-gold); }
.legend-item .stress-dot { background: #ff007f; box-shadow: 0 0 6px #ff007f; }

.pc-canvas-wrap {
  width: 100%;
  background: rgba(4, 8, 20, 0.8);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.pc-canvas-wrap canvas {
  width: 100%;
  height: 90px;
  display: block;
}

.pc-stress-words {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.pc-word-tag {
  font-size: 11px;
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 6px;
  border-radius: 6px;
  color: var(--text-dim);
}

.pc-word-tag.stressed {
  background: rgba(255, 0, 127, 0.15);
  border: 1px solid rgba(255, 0, 127, 0.4);
  color: #ff80bf;
  font-weight: 800;
}

/* 5. 실시간 문법 뇌 지도 모달 */
.radar-modal-card {
  max-width: 780px !important;
}

.radar-modal-body {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 20px;
  align-items: center;
}

.radar-chart-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(6, 10, 26, 0.6);
  border-radius: 14px;
  padding: 10px;
  border: 1px solid rgba(0, 240, 255, 0.2);
}

.radar-mastery-pill {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 6px;
}

.radar-mastery-pill strong {
  color: var(--accent-cyan);
  font-size: 16px;
}

.prescription-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.rx-card {
  background: rgba(14, 20, 48, 0.7);
  border-radius: 12px;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.rx-badge {
  font-size: 11px;
  font-weight: 800;
  width: fit-content;
  padding: 2px 8px;
  border-radius: 6px;
}

.rx-card.strength {
  border-color: rgba(0, 255, 136, 0.3);
}

.rx-card.strength .rx-badge {
  background: rgba(0, 255, 136, 0.2);
  color: var(--accent-green);
}

.rx-card.weakness {
  border-color: rgba(255, 51, 102, 0.3);
}

.rx-card.weakness .rx-badge {
  background: rgba(255, 51, 102, 0.2);
  color: var(--accent-red);
}

.rx-card.advice {
  border-color: rgba(255, 200, 0, 0.35);
  background: linear-gradient(135deg, rgba(30, 24, 10, 0.7), rgba(20, 16, 8, 0.7));
}

.rx-card.advice .rx-badge {
  background: rgba(255, 200, 0, 0.2);
  color: var(--accent-gold);
}

.rx-title {
  font-size: 14px;
  font-weight: 800;
  color: #fff;
}

.rx-desc {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.4;
}

.rx-advice-text {
  font-size: 12.5px;
  color: #ffe680;
  line-height: 1.4;
  font-weight: 600;
}

@media (max-width: 768px) {
  .radar-modal-body {
    grid-template-columns: 1fr;
  }
}