* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  /* 모바일 스크롤 최적화 */
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
  min-height: 100vh;
  position: relative;
  /* 모바일 터치 스크롤 부드럽게 */
  -webkit-overflow-scrolling: touch;
  overflow-x: hidden;
  overflow-y: auto;
}

/* 배경에 은은한 그라데이션 오버레이 */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
  position: relative;
  z-index: 1;
  /* 모바일 터치 스크롤 최적화 */
  -webkit-overflow-scrolling: touch;
}

/* 📢 광고 컨테이너 스타일 */
.ad-container {
  margin: 2rem auto;
  text-align: center;
  position: relative;
  z-index: 0;
  clear: both;
  max-height: 250px;
  overflow: hidden;
}

.ad-header {
  margin-top: 0;
  margin-bottom: 2.5rem;
}

.ad-footer {
  margin-top: 4rem;
  margin-bottom: 2rem;
  clear: both;
}

/* A-ADS iframe 제한 */
.ad-container iframe {
  max-height: 200px;
  position: relative !important;
  z-index: 1 !important;
}

/* 팝업/오버레이 광고 차단 */
.ad-container * {
  position: relative !important;
  max-width: 100% !important;
}

/* iframe 내부 팝업 차단 */
.ad-container iframe::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 99999;
  pointer-events: none;
}

.ad-label {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.4);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.ad-placeholder {
  display: inline-block;
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.5rem;
  padding: 0.5rem;
  transition: all 0.3s ease;
}

.ad-placeholder:hover {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(102, 126, 234, 0.3);
}

.ad-placeholder iframe {
  display: block;
  margin: 0 auto;
}

.ad-sidebar {
  position: sticky;
  top: 2rem;
}

.ad-news {
  margin: 2rem 0;
}

/* 반응형: 모바일에서는 광고 숨기기 또는 작은 사이즈 */
@media (max-width: 768px) {
  .ad-container {
    max-height: 150px;
    pointer-events: none; /* 모바일에서 광고 클릭 방지 */
  }
  
  .ad-container iframe {
    pointer-events: none !important; /* iframe 내부 클릭 차단 */
  }
  
  /* 데스크톱 광고 숨김 */
  .ad-desktop {
    display: none !important;
  }
  
  /* 모바일 광고 표시 (하지만 비어있음) */
  .ad-mobile {
    display: block !important;
  }
  
  /* footer 광고 완전히 숨김 */
  .ad-footer {
    display: none !important;
  }
  
  .ad-header iframe {
    width: 320px !important;
    height: 50px !important;
    max-height: 100px !important;
  }
}

/* 광고 문의 스타일 */
.ad-placeholder-custom {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(102, 126, 234, 0.2);
  border-radius: 1rem;
  padding: 2rem;
  margin: 0 auto;
  max-width: 600px;
  transition: all 0.3s ease;
}

.ad-placeholder-custom:hover {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.15) 100%);
  border-color: rgba(102, 126, 234, 0.4);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
}

.ad-inquiry {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.ad-inquiry a:hover {
  background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(102, 126, 234, 0.4);
}

/* 🎨 프리미엄 헤더 - 여유로운 레이아웃 */
.dashboard-header {
  text-align: center;
  padding: 2rem 1rem;
  margin-bottom: 2.5rem;
  background: linear-gradient(180deg, rgba(102, 126, 234, 0.05) 0%, rgba(17, 24, 39, 0) 100%);
  border-bottom: 1px solid rgba(102, 126, 234, 0.1);
  position: relative;
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  position: relative;
}

.header-main {
  flex: 0 1 auto;
  text-align: center;
}

/* 언어 선택기 */
.language-selector {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}

.lang-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.5rem;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  transition: all 0.3s ease;
  line-height: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lang-btn .fi {
  font-size: 1.8rem;
  display: inline-block;
  border-radius: 4px;
}

.lang-btn:hover {
  background: rgba(102, 126, 234, 0.2);
  border-color: rgba(102, 126, 234, 0.5);
  transform: translateY(-2px);
}

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

/* 선택된 언어 버튼 */
.lang-btn.active {
  background: rgba(102, 126, 234, 0.4);
  border-color: rgba(102, 126, 234, 0.8);
  box-shadow: 0 0 15px rgba(102, 126, 234, 0.5), inset 0 2px 4px rgba(0, 0, 0, 0.3);
  transform: scale(0.95);
}

.lang-btn.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid rgba(102, 126, 234, 0.8);
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 1rem;
  }
  
  .language-selector {
    position: static;
    transform: none;
    justify-content: center;
    width: 100%;
  }
  
  .header-main {
    width: 100%;
  }
}

.header-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  animation: float 3s ease-in-out infinite;
  filter: drop-shadow(0 0 20px rgba(102, 126, 234, 0.5));
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

h1 {
  font-size: 2rem;
  font-weight: 800;
  margin: 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
  text-shadow: 0 0 40px rgba(102, 126, 234, 0.3);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 1.2rem;
  padding: 1.5rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.stat-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(102, 126, 234, 0.3),
              0 0 40px rgba(102, 126, 234, 0.2);
  border-color: rgba(102, 126, 234, 0.4);
}

.stat-card:hover::before {
  opacity: 1;
}

.coin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 1.5rem;
}

.coin-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 1.2rem;
  padding: 1.5rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.coin-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none; /* ✨ 클릭 이벤트 통과 허용 */
  z-index: 0;
}

.coin-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 25px 70px rgba(102, 126, 234, 0.35),
              0 0 50px rgba(102, 126, 234, 0.25);
  border-color: rgba(102, 126, 234, 0.5);
}

.coin-card:hover::before {
  opacity: 1;
}

.coin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.coin-name {
  font-size: 1.3rem;
  font-weight: bold;
  text-transform: uppercase;
}

.coin-price {
  font-size: 2rem;
  font-weight: bold;
  margin: 0.5rem 0;
}

.coin-price-sub {
  font-size: 1rem;
  color: #94a3b8;
  margin: 0.3rem 0 0.5rem 0;
}

.price-change {
  padding: 0.3rem 0.8rem;
  border-radius: 0.5rem;
  font-weight: bold;
  font-size: 0.9rem;
}

.positive {
  background: rgba(34, 197, 94, 0.2);
  color: #22c55e;
}

.negative {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
}

.loading {
  text-align: center;
  font-size: 1.5rem;
  padding: 3rem;
  color: #667eea;
}

.error {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
  padding: 1rem;
  border-radius: 0.5rem;
  text-align: center;
  margin: 1rem 0;
}

.refresh-btn {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  padding: 0.8rem 2rem;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-block;
  margin: 2rem 0;
  position: relative;
  z-index: 100;
}

.refresh-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 20px rgba(102, 126, 234, 0.5);
}

.market-cap {
  font-size: 0.9rem;
  color: #94a3b8;
  margin-top: 0.5rem;
}

@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }
  
  h1 {
    font-size: 1.8rem;
  }
  
  .coin-grid {
    grid-template-columns: 1fr;
  }
}

/* 코인 선택 UI */
.coin-selector {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(102, 126, 234, 0.3);
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.coin-selector h3 {
  color: #667eea;
  margin-bottom: 1rem;
}

.coin-selector-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.8rem;
}

.coin-selector-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.5rem;
  padding: 0.8rem;
  color: #94a3b8;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  position: relative;
}

.coin-selector-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(102, 126, 234, 0.5);
  transform: translateY(-2px);
}

.coin-selector-btn.selected {
  background: rgba(102, 126, 234, 0.2);
  border-color: #667eea;
  color: #667eea;
}

.coin-selector-btn .coin-icon {
  font-size: 1.2rem;
  min-width: 30px;
}

.coin-selector-btn .coin-label {
  flex: 1;
  text-align: left;
}

.coin-selector-btn .fa-check {
  color: #22c55e;
  font-size: 1rem;
}

@media (max-width: 768px) {
  .coin-selector-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }
  
  .coin-selector-btn {
    font-size: 0.8rem;
    padding: 0.6rem;
  }
}

/* 검색 섹션 */
.coin-search-section {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(102, 126, 234, 0.3);
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.coin-search-section h3 {
  color: #667eea;
}

.search-container {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  position: relative;
}

.search-input-wrapper {
  flex: 1;
  position: relative;
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: #94a3b8;
  font-size: 1.2rem;
  pointer-events: none;
}

.search-input {
  flex: 1;
  width: 100%;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.5rem;
  padding: 0.8rem 1rem 0.8rem 3rem;
  color: white;
  font-size: 1rem;
  transition: all 0.3s ease;
}

/* 정렬 섹션 */
.sort-section {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sort-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.sort-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.5rem;
  padding: 0.6rem 1rem;
  color: #94a3b8;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 500;
}

.sort-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(102, 126, 234, 0.5);
  transform: translateY(-1px);
}

.sort-btn.active {
  background: rgba(102, 126, 234, 0.3);
  border-color: #667eea;
  color: #667eea;
  font-weight: 600;
}

.sort-btn i {
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .sort-buttons {
    gap: 0.4rem;
  }
  
  .sort-btn {
    padding: 0.5rem 0.8rem;
    font-size: 0.75rem;
  }
}

.search-input:focus {
  outline: none;
  border-color: #667eea;
  background: rgba(255, 255, 255, 0.15);
}

.browse-btn {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.browse-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 20px rgba(102, 126, 234, 0.5);
}

.search-results-list {
  max-height: 400px;
  overflow-y: auto;
  margin-top: 1rem;
}

.search-result-item {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.5rem;
  padding: 0.8rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.search-result-item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #667eea;
}

.search-result-item.selected {
  background: rgba(102, 126, 234, 0.2);
  border-color: #667eea;
}

.coin-thumb {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.coin-info {
  flex: 1;
}

.coin-name-search {
  font-weight: bold;
  color: white;
}

.coin-rank {
  font-size: 0.9rem;
  color: #94a3b8;
}

.search-no-results,
.search-error {
  text-align: center;
  padding: 2rem;
  color: #94a3b8;
}

/* 모달 */
.modal {
  display: none;
  position: fixed;
  z-index: 999999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  border: 2px solid rgba(102, 126, 234, 0.3);
  border-radius: 1rem;
  padding: 2rem;
  max-width: 1200px;
  max-height: 80vh;
  width: 90%;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.modal-header h2 {
  color: #667eea;
  font-size: 1.8rem;
}

.modal-close {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1.2rem;
}

.modal-close:hover {
  background: rgba(239, 68, 68, 0.5);
}

.coin-browser-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
}

.coin-browser-item {
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.8rem;
  padding: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.coin-browser-item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #667eea;
  transform: translateY(-3px);
}

.coin-browser-item.selected {
  background: rgba(102, 126, 234, 0.2);
  border-color: #667eea;
}

.coin-browser-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.5rem;
}

.coin-browser-img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.coin-browser-info {
  flex: 1;
}

.coin-browser-name {
  font-weight: bold;
  color: white;
}

.coin-browser-symbol {
  font-size: 0.9rem;
  color: #94a3b8;
}

.coin-browser-price {
  font-size: 1.3rem;
  font-weight: bold;
  color: white;
  margin: 0.5rem 0;
}

.coin-browser-rank {
  font-size: 0.9rem;
  color: #94a3b8;
  margin-top: 0.5rem;
}

.remove-coin-btn {
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.remove-coin-btn:hover {
  background: rgba(239, 68, 68, 0.4);
  transform: scale(1.1);
}

/* 거래소 선택 버튼 */
.exchange-selector {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.exchange-btn {
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  color: #94a3b8;
  padding: 0.4rem 0.8rem;
  border-radius: 0.3rem;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.85rem;
  font-weight: bold;
}

.exchange-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(102, 126, 234, 0.5);
}

.exchange-btn.active {
  background: rgba(102, 126, 234, 0.3);
  border-color: #667eea;
  color: #667eea;
}

@media (max-width: 768px) {
  .search-container {
    flex-direction: column;
  }
  
  .coin-browser-grid {
    grid-template-columns: 1fr;
  }
  
  .modal-content {
    width: 95%;
    padding: 1rem;
  }
}

/* 차트 모달 스타일 */
.chart-modal {
  max-width: 900px;
}

.chart-period-selector {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  justify-content: center;
}

.chart-period-btn {
  padding: 0.5rem 1.5rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.5rem;
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
}

.chart-period-btn:hover {
  background: rgba(102, 126, 234, 0.3);
}

.chart-period-btn.active {
  background: rgba(102, 126, 234, 0.6);
  border-color: rgba(102, 126, 234, 0.8);
}

.chart-container {
  position: relative;
  height: 400px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 0.5rem;
  padding: 1rem;
}

.chart-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #94a3b8;
}

/* 포트폴리오 모달 스타일 */
.portfolio-modal {
  max-width: 500px;
}

.portfolio-form {
  padding: 1rem 0;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: #94a3b8;
  font-size: 0.9rem;
}

.form-group input {
  width: 100%;
  padding: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.5rem;
  color: white;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.form-group input:focus {
  outline: none;
  border-color: rgba(102, 126, 234, 0.8);
  background: rgba(255, 255, 255, 0.1);
}

.current-price-display {
  padding: 0.75rem;
  background: rgba(102, 126, 234, 0.2);
  border-radius: 0.5rem;
  font-size: 1.2rem;
  font-weight: bold;
  color: #667eea;
}

.profit-calculation {
  margin: 1.5rem 0;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 0.5rem;
}

.profit-summary {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.profit-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
}

.profit-row strong {
  font-size: 1.1rem;
}

.form-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.btn-save, .btn-cancel {
  flex: 1;
  padding: 0.75rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-save {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.btn-save:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-cancel {
  background: rgba(255, 255, 255, 0.1);
  color: white;
}

.btn-cancel:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* 코인 카드 내 포트폴리오 정보 */
.portfolio-info {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  border-left: 3px solid;
}

.portfolio-info.profitable {
  border-left-color: #10b981;
  background: rgba(16, 185, 129, 0.1);
}

.portfolio-info.losing {
  border-left-color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

.portfolio-detail {
  font-size: 0.9rem;
  margin: 0.3rem 0;
  color: #cbd5e1;
}

.coin-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  position: relative;
  z-index: 1;
}
}

.action-btn {
  flex: 1;
  padding: 0.5rem;
  background: rgba(102, 126, 234, 0.2);
  border: 1px solid rgba(102, 126, 234, 0.3);
  border-radius: 0.5rem;
  color: white;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.action-btn:hover {
  background: rgba(102, 126, 234, 0.4);
  transform: translateY(-2px);
}

/* 포트폴리오 요약 카드 */
.portfolio-summary-card {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(102, 126, 234, 0.3);
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.portfolio-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.portfolio-stat {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  color: #94a3b8;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: bold;
}

/* 김치 프리미엄 배지 */
.kimchi-premium-container {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 0.5rem;
  padding: 0.7rem;
  margin: 0.7rem 0;
  border-left: 3px solid rgba(251, 191, 36, 0.5);
}

.kimchi-premium-container > div:first-child {
  font-size: 0.75rem;
  color: #fbbf24;
  margin-bottom: 0.5rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.kimchi-premium-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.kimchi-premium-badge {
  display: inline-block;
  padding: 0.3rem 0.6rem;
  border-radius: 0.4rem;
  font-size: 0.75rem;
  border: 1px solid;
  white-space: nowrap;
  font-weight: 500;
}

.kimchi-premium-badge.premium {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.3);
  color: #10b981;
}

.kimchi-premium-badge.discount {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

.kimchi-premium-badge i {
  margin-right: 0.3rem;
}

/* 즐겨찾기 버튼 */
.favorite-btn {
  background: none;
  border: none;
  color: #9ca3af;
  cursor: pointer;
  font-size: 1.2rem;
  padding: 0;
  margin-right: 0.5rem;
  transition: all 0.3s ease;
}

.favorite-btn:hover {
  color: #fbbf24;
  transform: scale(1.2);
}

.favorite-btn.active {
  color: #fbbf24;
  animation: pulse 0.5s ease;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.3); }
}

.coin-card.favorite-coin {
  border-color: rgba(251, 191, 36, 0.5);
  background: rgba(251, 191, 36, 0.05);
}

/* 거래량 정보 */
.volume-info {
  font-size: 0.85rem;
  color: #94a3b8;
  margin-top: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.volume-info i {
  color: #3b82f6;
}

/* Top 250 코인 브라우저 */
.top-coins-sort {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.top-coins-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  max-height: 70vh;
  overflow-y: auto;
}

.top-coin-card {
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.75rem;
  padding: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  text-align: center;
}

.top-coin-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(102, 126, 234, 0.5);
  transform: translateY(-2px);
}

.top-coin-card.selected {
  background: rgba(102, 126, 234, 0.2);
  border-color: #667eea;
}

.top-coin-rank {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.2rem 0.5rem;
  border-radius: 0.3rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: #9ca3af;
}

.top-coin-image {
  width: 48px;
  height: 48px;
  margin: 1rem auto 0.5rem;
  border-radius: 50%;
}

.top-coin-name {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
  color: #fff;
}

.top-coin-symbol {
  font-size: 0.75rem;
  color: #9ca3af;
  margin-bottom: 0.5rem;
}

.top-coin-price {
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.3rem;
}

.top-coin-change {
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.top-coin-change.positive {
  color: #10b981;
}

.top-coin-change.negative {
  color: #ef4444;
}

.top-coin-marketcap {
  font-size: 0.75rem;
  color: #9ca3af;
}

.top-coin-selected {
  margin-top: 0.5rem;
  padding: 0.3rem;
  background: rgba(34, 197, 94, 0.2);
  border-radius: 0.3rem;
  color: #22c55e;
  font-size: 0.75rem;
  font-weight: 600;
}

@media (max-width: 768px) {
  .top-coins-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.75rem;
  }
  
  .top-coin-image {
    width: 36px;
    height: 36px;
  }
}

/* 버튼 스타일 */
.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border: none;
  border-radius: 0.75rem;
  padding: 0.8rem 1.5rem;
  color: white;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5),
              0 0 30px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary i {
  font-size: 1rem;
}

/* 뉴스 피드 스타일 */
.news-feed-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 1.2rem;
  padding: 1.5rem;
  margin-top: 3rem;
  margin-bottom: 3rem;
  transition: all 0.3s ease;
  position: relative;
  z-index: 1;
}

.news-feed-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.news-feed {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-height: none; /* 높이 제한 제거 - 모든 뉴스 표시 */
  overflow-y: visible;
  padding-right: 0.5rem;
  width: 100%;
  box-sizing: border-box;
}

.news-feed::-webkit-scrollbar {
  width: 6px;
}

.news-feed::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
}

.news-feed::-webkit-scrollbar-thumb {
  background: rgba(59, 130, 246, 0.5);
  border-radius: 10px;
}

.news-feed::-webkit-scrollbar-thumb:hover {
  background: rgba(59, 130, 246, 0.7);
}

.news-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.75rem;
  padding: 1rem;
  transition: all 0.3s ease;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
  width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.news-item:hover {
  background: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.3);
  transform: translateX(5px);
}

.news-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.news-source {
  font-size: 0.75rem;
  font-weight: 600;
  color: #3b82f6;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.news-time {
  font-size: 0.75rem;
  color: #9ca3af;
}

.news-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #f3f4f6;
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.news-description {
  font-size: 0.85rem;
  color: #9ca3af;
  line-height: 1.6;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 6;
  -webkit-box-orient: vertical;
}

/* 반응형 */
@media (max-width: 768px) {
  .news-feed {
    max-height: 400px;
  }
  
  .news-feed-card {
    margin-bottom: 4rem;
    padding-bottom: 2rem;
  }
  
  .news-title {
    font-size: 0.9rem;
  }
  
  .news-description {
    font-size: 0.8rem;
  }
  
  .ad-footer {
    margin-top: 5rem;
    padding-top: 2rem;
  }
}

/* 뉴스 아이템 래퍼 (번역 버튼 포함) */
.news-item-wrapper {
  position: relative;
}

/* 뉴스 아이템 - 번역 버튼 공간 확보 */
.news-item-wrapper .news-item {
  padding-right: 5rem; /* 번역 버튼 공간 */
}

/* 번역 버튼 */
.translate-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(59, 130, 246, 0.2);
  border: 1px solid rgba(59, 130, 246, 0.4);
  border-radius: 0.5rem;
  padding: 0.4rem 0.8rem;
  color: #3b82f6;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  z-index: 10;
  white-space: nowrap;
}

.translate-btn:hover {
  background: rgba(59, 130, 246, 0.3);
  border-color: rgba(59, 130, 246, 0.6);
  transform: scale(1.05);
}

.translate-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.translate-btn i {
  font-size: 0.85rem;
}

/* 반응형 - 모바일에서 번역 버튼 위치 조정 */
@media (max-width: 768px) {
  .news-item-wrapper .news-item {
    padding-right: 1rem; /* 모바일에서는 원래대로 */
  }
  
  .translate-btn {
    position: static;
    margin-top: 0.5rem;
    width: 100%;
    justify-content: center;
  }
  
  .news-item-wrapper {
    display: flex;
    flex-direction: column;
  }
}

/* 즐겨찾기 코인 특별 글로우 */
.favorite-coin {
  border-color: rgba(251, 191, 36, 0.4);
  background: rgba(251, 191, 36, 0.05);
}

.favorite-coin::before {
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.08) 0%, rgba(245, 158, 11, 0.08) 100%);
  opacity: 1;
}

.favorite-coin:hover {
  box-shadow: 0 25px 70px rgba(251, 191, 36, 0.3),
              0 0 50px rgba(251, 191, 36, 0.2);
  border-color: rgba(251, 191, 36, 0.6);
}

/* 🔒 비밀번호 인증 화면 */
.auth-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
}

.auth-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 2rem;
  padding: 3rem 2.5rem;
  text-align: center;
  max-width: 420px;
  width: 90%;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.3);
}

.auth-icon {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  animation: lock-pulse 2s ease-in-out infinite;
}

@keyframes lock-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.auth-card h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  color: white;
  background: none;
  -webkit-text-fill-color: white;
}

.auth-card p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2rem;
  font-size: 1rem;
}

.auth-input {
  width: 100%;
  padding: 1rem 1.5rem;
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 1rem;
  color: white;
  font-size: 1.1rem;
  text-align: center;
  letter-spacing: 0.3em;
  transition: all 0.3s ease;
  margin-bottom: 1.5rem;
}

.auth-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: normal;
}

.auth-input:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 0 30px rgba(255, 255, 255, 0.3);
}

.auth-btn {
  width: 100%;
  padding: 1rem 2rem;
  background: rgba(255, 255, 255, 0.9);
  color: #667eea;
  border: none;
  border-radius: 1rem;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.auth-btn:hover {
  background: white;
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.auth-btn:active {
  transform: translateY(-1px);
}

.auth-error {
  margin-top: 1rem;
  color: #ff6b6b;
  background: rgba(255, 107, 107, 0.2);
  padding: 0.8rem;
  border-radius: 0.8rem;
  font-size: 0.95rem;
  font-weight: 600;
  min-height: 20px;
}

/* Shake animation for wrong password */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-10px); }
  20%, 40%, 60%, 80% { transform: translateX(10px); }
}

.shake {
  animation: shake 0.5s;
}

/* ============================================
   📱 모바일 반응형 디자인 (포괄적)
   ============================================ */

@media (max-width: 768px) {
  /* 컨테이너 패딩 줄이기 */
  .container {
    padding: 1rem;
  }
  
  /* 광고 문의 */
  .ad-placeholder-custom {
    padding: 1.5rem 1rem;
    margin: 0 0.5rem;
  }
  
  .ad-inquiry {
    font-size: 0.9rem;
  }
  
  .ad-inquiry i {
    font-size: 1.5rem !important;
  }
  
  .ad-inquiry p:first-of-type {
    font-size: 1rem !important;
  }
  
  .ad-inquiry p:last-of-type {
    font-size: 0.85rem !important;
  }
  
  .ad-inquiry a {
    font-size: 0.85rem !important;
    padding: 0.7rem 1rem !important;
  }
  
  /* 헤더 */
  .dashboard-header {
    padding: 1.5rem 1rem;
    margin-bottom: 1.5rem;
  }
  
  .header-content {
    flex-direction: column;
    gap: 1rem;
  }
  
  .header-main h1 {
    font-size: 1.5rem !important;
  }
  
  .header-icon {
    font-size: 2rem !important;
  }
  
  /* 언어 선택기를 static으로 변경 */
  .language-selector {
    position: static;
    transform: none;
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .lang-btn {
    padding: 0.4rem 0.6rem;
    font-size: 0.85rem;
  }
  
  /* 통계 그리드 */
  .stats-grid {
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
  }
  
  .stat-card {
    padding: 1rem !important;
  }
  
  .stat-card h3 {
    font-size: 1rem !important;
  }
  
  .stat-card .text-3xl {
    font-size: 1.5rem !important;
  }
  
  /* 코인 그리드 */
  .coin-grid {
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
  }
  
  .coin-card {
    padding: 1rem !important;
  }
  
  .coin-name {
    font-size: 1rem !important;
  }
  
  .coin-price {
    font-size: 1.3rem !important;
  }
  
  /* 코인 액션 버튼 */
  .coin-actions {
    flex-direction: column !important;
    gap: 0.5rem !important;
  }
  
  .action-btn {
    width: 100% !important;
    padding: 0.6rem !important;
    font-size: 0.9rem !important;
  }
  
  /* 검색 섹션 */
  .coin-search-section {
    padding: 1rem !important;
  }
  
  .coin-search-section h3 {
    font-size: 1.1rem !important;
  }
  
  .search-input {
    font-size: 0.9rem !important;
    padding: 0.7rem 0.7rem 0.7rem 2.5rem !important;
  }
  
  /* 정렬 버튼 */
  .sort-buttons {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.5rem !important;
  }
  
  .sort-btn {
    padding: 0.6rem 0.8rem !important;
    font-size: 0.85rem !important;
  }
  
  /* 포트폴리오 요약 */
  .portfolio-summary-card {
    padding: 1rem !important;
  }
  
  .portfolio-stats {
    grid-template-columns: 1fr !important;
    gap: 0.8rem !important;
  }
  
  /* 모달 */
  .modal-content {
    width: 95% !important;
    max-height: 90vh !important;
    padding: 1rem !important;
    margin: 1rem !important;
  }
  
  .modal-header h2 {
    font-size: 1.3rem !important;
  }
  
  .modal-close {
    width: 2rem !important;
    height: 2rem !important;
    font-size: 1.2rem !important;
  }
  
  /* 차트 모달 */
  .chart-modal .modal-content {
    max-height: 85vh !important;
  }
  
  .chart-period-selector {
    gap: 0.5rem !important;
    margin-bottom: 1rem !important;
  }
  
  .chart-period-btn {
    padding: 0.5rem 1rem !important;
    font-size: 0.85rem !important;
  }
  
  /* 포트폴리오 모달 */
  .portfolio-modal .modal-content {
    max-height: 85vh !important;
  }
  
  .form-group label {
    font-size: 0.9rem !important;
  }
  
  .form-group input {
    padding: 0.7rem !important;
    font-size: 0.9rem !important;
  }
  
  .form-actions {
    flex-direction: column !important;
    gap: 0.8rem !important;
  }
  
  .btn-save,
  .btn-cancel {
    width: 100% !important;
    padding: 0.8rem !important;
  }
  
  /* Top 100 모달 */
  .top-coins-sort {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.5rem !important;
    margin-bottom: 1rem !important;
  }
  
  .top-coins-sort .sort-btn {
    padding: 0.6rem !important;
    font-size: 0.85rem !important;
  }
  
  .top-coins-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.8rem !important;
  }
  
  .top-coin-card {
    padding: 0.8rem !important;
  }
  
  .top-coin-rank {
    font-size: 0.75rem !important;
  }
  
  .top-coin-image {
    width: 2rem !important;
    height: 2rem !important;
  }
  
  .top-coin-name {
    font-size: 0.85rem !important;
  }
  
  .top-coin-symbol {
    font-size: 0.7rem !important;
  }
  
  .top-coin-price {
    font-size: 0.85rem !important;
  }
  
  .top-coin-change {
    font-size: 0.75rem !important;
  }
  
  .top-coin-marketcap {
    font-size: 0.7rem !important;
  }
  
  .top-coin-selected {
    font-size: 0.7rem !important;
    padding: 0.3rem 0.5rem !important;
  }
  
  /* 뉴스 섹션 */
  .news-grid {
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
  }
  
  .news-card {
    padding: 1rem !important;
  }
  
  .news-title {
    font-size: 0.95rem !important;
  }
  
  .news-description {
    font-size: 0.85rem !important;
  }
  
  /* 김치 프리미엄 */
  .kimchi-premium-container {
    font-size: 0.85rem !important;
  }
  
  .kimchi-premium-badges {
    flex-direction: column !important;
    gap: 0.3rem !important;
  }
  
  .kimchi-premium-badge {
    font-size: 0.75rem !important;
    padding: 0.3rem 0.5rem !important;
  }
  
  /* 포트폴리오 정보 */
  .portfolio-info {
    font-size: 0.85rem !important;
    padding: 0.8rem !important;
  }
  
  .portfolio-detail {
    font-size: 0.8rem !important;
  }
  
  /* 시장 정보 */
  .market-cap,
  .volume-info,
  .exchange-price-info {
    font-size: 0.8rem !important;
  }
  
  /* 로딩 */
  .loading {
    font-size: 1rem !important;
    padding: 2rem 1rem !important;
  }
  
  /* 에러 메시지 */
  .error {
    padding: 1rem !important;
    font-size: 0.9rem !important;
  }
  
  /* 버튼 */
  .btn-primary {
    padding: 0.7rem 1rem !important;
    font-size: 0.9rem !important;
  }
  
  /* 푸터 */
  footer {
    padding: 1.5rem 1rem !important;
    font-size: 0.85rem !important;
  }
  
  footer div {
    font-size: 0.8rem !important;
  }
}

/* 초소형 모바일 (320px ~ 480px) */
@media (max-width: 480px) {
  .container {
    padding: 0.5rem;
  }
  
  .header-main h1 {
    font-size: 1.2rem !important;
  }
  
  .lang-btn {
    padding: 0.3rem 0.5rem;
    font-size: 0.75rem;
  }
  
  .top-coins-grid {
    grid-template-columns: 1fr !important;
  }
  
  .sort-buttons {
    grid-template-columns: 1fr !important;
  }
  
  .top-coins-sort {
    grid-template-columns: 1fr !important;
  }
  
  .modal-content {
    width: 98% !important;
    padding: 0.8rem !important;
  }
}

/* 뉴스 모달 스타일 */
.news-modal {
  max-width: 800px;
  max-height: 90vh;
}

.news-modal-body {
  padding: 1rem 0;
  max-height: 75vh;
  overflow-y: auto;
}

.news-modal-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  color: #94a3b8;
}

.news-modal-source {
  font-weight: 600;
  color: #667eea;
}

.news-modal-time {
  color: #64748b;
}

.news-modal-article-title {
  font-size: 1.5rem;
  font-weight: bold;
  color: #fff;
  margin-bottom: 1.5rem;
  line-height: 1.4;
}

.news-modal-description {
  font-size: 1.05rem;
  line-height: 1.9;
  color: #cbd5e1;
  margin-bottom: 2rem;
  white-space: pre-wrap;
  word-wrap: break-word;
  max-height: none; /* 제한 없음 - 전체 내용 표시 */
  overflow: visible;
  position: relative;
}

/* 그라데이션 제거 - 전체 내용 표시 */

/* AI 전망 카드 */
.ai-forecast-card {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: 1rem;
  padding: 1.5rem;
  margin: 2rem 0;
  transition: all 0.3s ease;
}

.ai-forecast-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(139, 92, 246, 0.3);
}

/* AI 전망 컨테이너 스타일 */
#ai-forecast-container {
  width: 100%;
  position: relative;
  /* 모바일 터치 스크롤 최적화 */
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y; /* 세로 스크롤 허용 */
}

.forecast-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}

@media (max-width: 1200px) {
  .forecast-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .forecast-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .forecast-grid {
    grid-template-columns: 1fr;
  }
}

.forecast-item {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.75rem;
  padding: 1.25rem;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 420px;
}

.forecast-item:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(139, 92, 246, 0.5);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(139, 92, 246, 0.2);
}

.forecast-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.forecast-coin-name {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.forecast-coin-name strong {
  font-size: 1.25rem;
  color: #fff;
}

.forecast-coin-fullname {
  font-size: 0.85rem;
  color: #94a3b8;
}

.forecast-outlook {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.4rem 0.8rem;
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.1);
}

/* 가격 섹션 - 깔끔한 정렬 */
.forecast-price-section {
  margin-bottom: 1rem;
  background: rgba(59, 130, 246, 0.05);
  border-radius: 0.75rem;
  padding: 1rem;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.forecast-price-label {
  font-size: 0.8rem;
  color: #94a3b8;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.forecast-price-display {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.forecast-price-value {
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}

.forecast-price-change {
  font-size: 1rem;
  font-weight: 600;
  display: inline-block;
  align-self: flex-start;
}

/* 신뢰도 섹션 - 깔끔한 정렬 */
.forecast-confidence-section {
  margin-bottom: 1rem;
  background: rgba(139, 92, 246, 0.05);
  border-radius: 0.75rem;
  padding: 1rem;
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.forecast-confidence-label {
  font-size: 0.8rem;
  color: #94a3b8;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.forecast-confidence-display {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.confidence-bar {
  flex: 1;
  height: 10px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
}

.confidence-fill {
  height: 100%;
  transition: width 0.5s ease;
  border-radius: 10px;
}

.confidence-percentage {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  min-width: 50px;
  text-align: right;
}

.forecast-reasoning {
  background: rgba(245, 158, 11, 0.1);
  border-left: 3px solid #f59e0b;
  padding: 0.75rem;
  margin-bottom: 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.9rem;
  line-height: 1.6;
  color: #cbd5e1;
  flex-grow: 0;
}

.forecast-reasoning i {
  margin-right: 0.5rem;
}

.forecast-advice {
  background: rgba(59, 130, 246, 0.1);
  border-left: 3px solid #3b82f6;
  padding: 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.9rem;
  line-height: 1.6;
  color: #cbd5e1;
  margin-bottom: auto;
  flex-grow: 0;
}

.forecast-advice i {
  margin-right: 0.5rem;
}

.forecast-disclaimer {
  margin-top: 1.5rem;
  padding: 0.875rem 1rem;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 0.5rem;
  font-size: 0.8rem;
  color: #94a3b8;
  line-height: 1.5;
  text-align: center;
}

.forecast-disclaimer i {
  margin-right: 0.4rem;
  color: #60a5fa;
  font-size: 0.9rem;
}

/* AI 전망 더보기 버튼 */
.forecast-read-more {
  width: 100%;
  margin-top: 0.75rem;
  padding: 0.5rem 1rem;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 0.5rem;
  color: #60a5fa;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: auto;
  flex-shrink: 0;
}

.forecast-read-more:hover {
  background: rgba(59, 130, 246, 0.2);
  border-color: rgba(59, 130, 246, 0.5);
  transform: translateY(-1px);
}

.forecast-read-more:active {
  transform: translateY(0);
}

.forecast-read-more i {
  transition: transform 0.3s ease;
}

/* 반응형 - 모바일 */
@media (max-width: 768px) {
  .forecast-grid {
    grid-template-columns: 1fr;
  }
  
  .forecast-item {
    min-height: auto;
  }
  
  .forecast-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  
  .forecast-outlook {
    width: 100%;
    justify-content: center;
  }
  
  .forecast-price-value {
    font-size: 1.5rem;
  }
  
  .forecast-price-change {
    font-size: 0.9rem;
  }
  
  .confidence-percentage {
    font-size: 1rem;
  }
}

/* 뉴스 모달 바디 스크롤바 스타일 */
.news-modal-body::-webkit-scrollbar {
  width: 8px;
}

.news-modal-body::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
}

.news-modal-body::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 10px;
}

.news-modal-body::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

.news-modal-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.news-modal-actions .btn-primary,
.news-modal-actions .btn-secondary {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  transition: all 0.3s ease;
}

.news-modal-actions .btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border: none;
  color: white;
  cursor: pointer;
}

.news-modal-actions .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.news-modal-actions .btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.news-modal-actions .btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
}

.news-modal-actions .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(102, 126, 234, 0.5);
}

@media (max-width: 768px) {
  .news-modal-article-title {
    font-size: 1.2rem;
  }
  
  .news-modal-actions {
    flex-direction: column;
  }
  
  .news-modal-actions .btn-primary,
  .news-modal-actions .btn-secondary {
    width: 100%;
    justify-content: center;
  }
}

/* 뉴스 더 보기 버튼 */
.news-read-more-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.75rem;
  margin: -1rem 0 1.5rem 0;
  background: rgba(102, 126, 234, 0.1);
  border: 1px solid rgba(102, 126, 234, 0.3);
  border-radius: 0.5rem;
  color: #667eea;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.news-read-more-btn:hover {
  background: rgba(102, 126, 234, 0.2);
  border-color: #667eea;
}

.news-read-more-btn i {
  transition: transform 0.3s ease;
}

.news-read-more-btn.expanded i {
  transform: rotate(180deg);
}

/* ===========================================
   사용설명서 위젯 애니메이션
   =========================================== */
@keyframes pulse {
  0%, 100% {
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4), 0 0 0 4px rgba(102, 126, 234, 0.1);
  }
  50% {
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.6), 0 0 0 8px rgba(102, 126, 234, 0.2);
  }
}

/* 사용설명서 모달 스크롤바 스타일 */
#userGuideContent::-webkit-scrollbar {
  width: 8px;
}

#userGuideContent::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
}

#userGuideContent::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 10px;
}

#userGuideContent::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}


/* ===========================================
   네비게이션 버튼 강조 애니메이션
   =========================================== */
@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 10px rgba(139, 92, 246, 0.5), 0 0 20px rgba(139, 92, 246, 0.3);
    transform: scale(1);
  }
  50% {
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.8), 0 0 40px rgba(139, 92, 246, 0.5);
    transform: scale(1.05);
  }
}

.pulse-animation {
  animation: pulse-glow 0.8s ease-in-out 3;
}