/* 공통 스타일 */
:root {
  --primary-color: #2196F3;
  --primary-hover: #1976D2;
  --success-color: #4CAF50;
  --error-color: #f44336;
  --bg-color: #f8f9fa;
  --container-bg: #ffffff;
  --text-color: #2c3e50;
  --border-color: #e9ecef;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
  --border-radius: 12px;
  
  /* 새로운 테마 변수 */
  --glass-background: rgba(255, 255, 255, 0.15);
  --glass-border: rgba(255, 255, 255, 0.3);
  --overlay-dark: rgba(0, 0, 0, 0.6);
  --gold-color: #FFD700;
  --gold-bg: rgba(255, 215, 0, 0.8);
  --gold-border: rgba(255, 215, 0, 0.9);
  --white-bg: rgba(255, 255, 255, 0.2);
  --white-border: rgba(255, 255, 255, 0.5);
  --dark-bg: rgba(0, 0, 0, 0.4);
}

/* 게임 화면 - 새 스타일 */
.game-screen {
  position: relative;
  width: 100%;
  min-height: 100vh;
  padding: 2rem;
  box-sizing: border-box;
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  font-family: 'Noto Sans KR', sans-serif;
  background: url('https://images.unsplash.com/photo-1519125323398-675f0ddb6308?auto=format&fit=crop&w=1500&q=80') no-repeat center center;
  background-size: cover;
  position: relative;
}

.game-screen::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--overlay-dark);
  z-index: 1;
}

/* 헤더 */
.header {
  width: 100%;
  max-width: 0px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  position: relative;
  z-index: 2;
  
}

.score-container {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.score-label {
  font-size: 1.2rem;
  font-weight: 600;
  color: white;
}

.score-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold-color);
}

/* 메인 컨테이너 */
.main-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
  max-width: 2200px; 
  width: 2000px;
  margin: 0 auto;
  padding: 2rem;
  position: relative;
  z-index: 2;
  /* background-color: var(--glass-background); */
  backdrop-filter: blur(3px);
  /* border: 1px solid var(--glass-border); */
  color: white;
  /* border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg); */
}

/* 키워드 컨테이너 */
.keyword-left,
.keyword-right {
  
}

.keyword-left:hover,
.keyword-right:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 20px rgba(0, 0, 0, 0.4);
}

/* 이미지 컨테이너 */
/* .keyword-image-container {
  width: 100%;
  height: 400px;
  overflow: hidden;
  position: relative;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--border-radius);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
} */

/* .keyword-image {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  display: block !important;
} */

/* 키워드 텍스트 */
.keyword-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
  text-align: center;
  padding: 1rem;
  background-color: var(--dark-bg);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

/* VS 텍스트 */
.vs-text {
  font-size: 2rem;
  font-weight: 800;
  color: var(--gold-color);
  padding: 1rem 2rem;
  background-color: var(--dark-bg);
  border: 2px solid rgba(255, 215, 0, 0.5);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  border-radius: 50px;
  transition: var(--transition);
}

.vs-text.correct {
  color: var(--success-color);
  animation: pulse 0.5s ease-in-out;
}

.vs-text.wrong {
  color: var(--error-color);
  animation: shake 0.5s ease-in-out;
}

/* 버튼 컨테이너 */


/* 버튼 */
.choice-button {
  padding: 0.8rem 1.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-width: 140px;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.choice-button#higherButton {
  background-color: var(--gold-bg);
  color: #000;
  border: 2px solid var(--gold-border);
}

.choice-button#lowerButton {
  background-color: var(--white-bg);
  color: #fff;
  border: 2px solid var(--white-border);
}

.choice-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.choice-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* 검색량 표시 */
.search-count {
  color: black;
  background-color: var(--gold-bg);
  font-weight: bold;
  border-radius: 20px;
  padding: 5px 15px;
  display: inline-block;
}

/* 미디어 쿼리 */
@media (max-width: 1200px) {
  .main-container, .leaderboard-box, .game-screen, .rankings-container {
    max-width: 98vw !important;
    padding-left: 10px !important;
    padding-right: 10px !important;
  }
  .leaderboard-box {
    padding-left: 20px !important;
    padding-right: 20px !important;
  }
}

@media (max-width: 900px) {
  .main-container, .leaderboard-box, .game-screen, .rankings-container {
    max-width: 100vw !important;
    padding-left: 2vw !important;
    padding-right: 2vw !important;
  }
  .leaderboard-box {
    padding: 20px 4vw 18px 4vw !important;
  }
  .main-container {
    flex-direction: column !important;
    gap: 1.2rem !important;
    padding: 1rem !important;
  }
  .game-screen {
    padding: 1rem !important;
  }
}

@media (max-width: 768px) {
  .game-screen {
    padding: 1rem;
  }
  
  .header {
    padding: 0.8rem 1rem;
  }
  
  .score-value {
    font-size: 1.5rem;
  }
  
  .keyword-image-container {
    height: 300px;
  }
  
  .button-container {
    flex-direction: column;
  }
  
  .choice-button {
    width: 100%;
  }
}

/* 로딩 인디케이터 */
.loading-indicator {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--primary-color);
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.8);
  padding: 1rem;
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  z-index: 2;
}

.loading-indicator i {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* 애니메이션 */
@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

/* 검색량 표시 스타일 */
.search-volume {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  opacity: 0;
  transition: all 0.3s ease;
}

.search-volume.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.search-volume.hide {
  opacity: 0;
  transform: translateX(-50%) translateY(20px);
}

/* 정답/오답 표시 스타일 */
.answer-indicator {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 24px;
  font-weight: bold;
  padding: 10px 20px;
  border-radius: 5px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.answer-indicator.correct {
  background-color: var(--success-color);
  color: white;
}

.answer-indicator.incorrect {
  background-color: var(--error-color);
  color: white;
}

.answer-indicator.show {
  opacity: 1;
}

/* 랭킹 테이블 스타일 */
.rankings-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  background-color: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.rankings-table th,
.rankings-table td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.rankings-table th {
  background-color: var(--primary-color);
  color: white;
  font-weight: 500;
}

.rankings-table tr:last-child td {
  border-bottom: none;
}

.rankings-table tr:hover {
  background-color: var(--hover-color);
}

/* 프리로더 프로그레스 바 */
.preloader-progress {
  width: 80%;
  height: 8px;
  background: #eee;
  border-radius: 4px;
  margin: 0 auto;
  overflow: hidden;
  position: relative;
}
.preloader-progress-inner {
  height: 100%;
  background: #2196F3;
  width: 0%;
  transition: width 0.3s;
}

/* 닉네임/이메일 입력란 스타일 */
.input-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
  align-items: flex-start;
}
.input-group label {
  font-weight: 500;
  margin-bottom: 2px;
  font-size: 15px;
}
.input-group input[type="text"],
.input-group input[type="email"] {
  width: 220px;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid #ccc;
  font-size: 16px;
  margin-bottom: 8px;
  transition: border-color 0.2s;
}
.input-group input[type="text"]:focus,
.input-group input[type="email"]:focus {
  border-color: #4f8cff;
  outline: none;
}
.required-star {
  color: #e74c3c;
  font-size: 13px;
  margin-left: 2px;
}