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

:root{
  --primary: #0a0e27;
  --secondary: #1a1f3a;
  --accent: #0f3460;
  --highlight: #ff4757;
  --success: #00d4ff;
  --text: #f0f3f7;
  --muted: #8899aa;
  --light-bg: #050a15;
  --premium-gold: #ffd700;
  --premium-silver: #c0c0c0;
}

html, body{
  width: 100%;
  height: 100%;
  overflow-x: hidden;
}

body{
  background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #0f3460 100%);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  overflow-x: hidden;
  min-height: 100vh;
}

.container{
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px 40px;
}

header{
  padding: 30px 0;
  border-bottom: 1px solid rgba(255, 215, 0, 0.2);
  margin-bottom: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

header h1{
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--premium-gold);
  text-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

header p{
  color: var(--success);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-weight: 500;
}

.header-actions{
  display: flex;
  gap: 15px;
  align-items: center;
}

#installBtn{
  padding: 10px 20px;
  border: 2px solid var(--premium-gold);
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.15), rgba(255, 215, 0, 0.05));
  color: var(--premium-gold);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 0 15px rgba(255, 215, 0, 0.1);
}

#installBtn:hover{
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.3), rgba(255, 215, 0, 0.15));
  box-shadow: 0 0 25px rgba(255, 215, 0, 0.3);
  transform: translateY(-2px);
}

#installBtn.hidden{
  display: none;
}

.datetime{
  font-size: 13px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 25px;
}

.selector-group{
  margin-bottom: 25px;
}

.selector-title{
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--muted);
  margin-bottom: 12px;
  display: block;
}

.pills{
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.pills button{
  padding: 10px 16px;
  border: 2px solid transparent;
  background: rgba(255, 215, 0, 0.08);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.pills button:hover{
  border-color: var(--premium-gold);
  background: rgba(255, 215, 0, 0.15);
  box-shadow: 0 6px 16px rgba(255, 215, 0, 0.15);
  transform: translateY(-2px);
}

.pills button.active{
  background: linear-gradient(135deg, var(--premium-gold), #ffed4e);
  color: #000;
  font-weight: 700;
  border-color: var(--premium-gold);
  box-shadow: 0 8px 20px rgba(255, 215, 0, 0.3);
}

.main-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 30px;
}

.price-card{
  background: linear-gradient(135deg, rgba(15, 52, 96, 0.3), rgba(255, 215, 0, 0.05));
  border: 2px solid rgba(255, 215, 0, 0.2);
  border-radius: 12px;
  padding: 30px;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

.price-card:hover{
  border-color: var(--premium-gold);
  background: linear-gradient(135deg, rgba(15, 52, 96, 0.4), rgba(255, 215, 0, 0.1));
  box-shadow: 0 12px 48px rgba(255, 215, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  transform: translateY(-4px);
}

.asset{
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.price-display{
  margin-bottom: 20px;
}

.price{
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--success), var(--premium-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.delta{
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

.price.up{
  background: linear-gradient(135deg, #ff4757, #ff6348);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.price.down{
  background: linear-gradient(135deg, #00d4ff, #00ff88);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.delta.up{
  color: #ff4757;
}

.delta.down{
  color: #00d4ff;
}

.purity-grid{
  margin-top: 25px;
  padding-top: 25px;
  border-top: 1px solid rgba(15, 52, 96, 0.5);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
}

.purity-item{
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  padding: 15px;
  text-align: center;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 215, 0, 0.1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.purity-item:hover{
  background: rgba(255, 215, 0, 0.1);
  border: 1px solid var(--premium-gold);
  box-shadow: 0 6px 16px rgba(255, 215, 0, 0.15);
  transform: translateY(-2px);
}

.purity-item .value{
  font-size: 18px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--success), var(--premium-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stats-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
  margin-top: 20px;
}

.stat-box{
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  padding: 15px;
  border: 1px solid rgba(255, 215, 0, 0.1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.stat-box:hover{
  border-color: var(--premium-gold);
  background: rgba(255, 215, 0, 0.05);
  box-shadow: 0 6px 16px rgba(255, 215, 0, 0.15);
}

.stat-value{
  font-size: 16px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--success), var(--premium-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.charts-section{
  margin-top: 30px;
}

.charts-title{
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text);
}

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

.chart-box{
  background: linear-gradient(135deg, rgba(15, 52, 96, 0.3), rgba(255, 215, 0, 0.05));
  border: 2px solid rgba(255, 215, 0, 0.2);
  border-radius: 12px;
  padding: 20px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.chart-box:hover{
  border-color: var(--premium-gold);
  background: linear-gradient(135deg, rgba(15, 52, 96, 0.4), rgba(255, 215, 0, 0.1));
  box-shadow: 0 12px 48px rgba(255, 215, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.chart-title{
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

canvas{
  width: 100% !important;
  height: 200px !important;
}

/* Premium Loading Screen */
.loading-overlay{
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(11, 16, 32, 0.95);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 0.5s ease-out;
}

.loading-overlay.hidden{
  opacity: 0;
  pointer-events: none;
}

.loader-container{
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
}

.premium-loader{
  position: relative;
  width: 80px;
  height: 80px;
}

.premium-loader::before,
.premium-loader::after{
  content: '';
  position: absolute;
  border-radius: 50%;
  border: 3px solid transparent;
  animation: spinPremium 1.5s linear infinite;
}

.premium-loader::before{
  width: 80px;
  height: 80px;
  border-top-color: #e94560;
  border-right-color: #e94560;
  top: 0;
  left: 0;
}

.premium-loader::after{
  width: 60px;
  height: 60px;
  border-bottom-color: #00d4ff;
  border-left-color: #00d4ff;
  top: 10px;
  left: 10px;
  animation-direction: reverse;
}

@keyframes spinPremium{
  0%{
    transform: rotate(0deg);
  }
  100%{
    transform: rotate(360deg);
  }
}

.loader-text{
  color: #00d4ff;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse{
  0%, 100%{
    opacity: 0.6;
  }
  50%{
    opacity: 1;
  }
}

/* Status Notifications */
.status-notification{
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.95), rgba(0, 255, 136, 0.95));
  border: 2px solid var(--success);
  border-radius: 8px;
  padding: 14px 24px;
  color: #000;
  font-weight: 700;
  z-index: 8888;
  display: none;
  align-items: center;
  gap: 12px;
  animation: slideInUp 0.5s ease-out;
  box-shadow: 0 8px 32px rgba(0, 212, 255, 0.3);
}

.status-notification.show{
  display: flex;
}

.status-notification.offline{
  background: linear-gradient(135deg, rgba(255, 71, 87, 0.95), rgba(255, 107, 107, 0.95));
  border-color: #ff4757;
  color: white;
  box-shadow: 0 8px 32px rgba(255, 71, 87, 0.3);
}

.status-notification.online{
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.95), rgba(0, 255, 136, 0.95));
  border-color: #00d4ff;
  color: #000;
}

.status-dot{
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes slideInUp{
  from{
    transform: translateY(400px);
    opacity: 0;
  }
  to{
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes fadeIn{
  from{
    opacity: 0;
    display: none;
  }
  to{
    opacity: 1;
    display: flex;
  }
}

@keyframes fadeOut{
  from{
    opacity: 1;
    display: flex;
  }
  to{
    opacity: 0;
    display: none;
  }
}

/* Offline Screen */
.offline-overlay{
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(10, 14, 39, 0.98), rgba(26, 31, 58, 0.98));
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9998;
  gap: 30px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease-out;
}

.offline-overlay.show{
  display: flex;
  opacity: 1;
  pointer-events: auto;
}

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

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

.offline-icon{
  font-size: 80px;
  animation: float 3s ease-in-out infinite;
}

@keyframes float{
  0%, 100%{
    transform: translateY(0px);
  }
  50%{
    transform: translateY(-20px);
  }
}

.offline-text{
  text-align: center;
}

.offline-text h2{
  font-size: 32px;
  color: var(--premium-gold);
  margin-bottom: 10px;
  text-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

.offline-text p{
  font-size: 16px;
  color: var(--success);
  margin-bottom: 20px;
}

.offline-data{
  font-size: 14px;
  color: var(--muted);
  text-align: center;
}

/* Online Notification */
.online-notification{
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.95), rgba(0, 255, 136, 0.95));
  border: 3px solid var(--success);
  border-radius: 12px;
  padding: 40px;
  color: #000;
  font-weight: 700;
  z-index: 9997;
  display: none;
  text-align: center;
  animation: popOut 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  box-shadow: 0 20px 60px rgba(0, 212, 255, 0.4);
}

.online-notification.show{
  display: block;
  animation: popIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.online-notification h2{
  font-size: 32px;
  margin-bottom: 10px;
}

.online-notification p{
  font-size: 14px;
  color: rgba(0, 0, 0, 0.8);
}

@keyframes popOut{
  0%{
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  100%{
    transform: translate(-50%, -50%) scale(0.5);
    opacity: 0;
  }
}
.export-section{
  margin-top: 30px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.export-section button{
  padding: 14px 32px;
  border: 2px solid var(--premium-gold);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.btn-primary{
  background: linear-gradient(135deg, var(--premium-gold), #ffed4e);
  color: #000;
  font-weight: 800;
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.3);
}

.btn-primary:hover{
  background: linear-gradient(135deg, #ffed4e, var(--premium-gold));
  box-shadow: 0 12px 40px rgba(255, 215, 0, 0.5);
  transform: translateY(-3px) scale(1.02);
}

.btn-secondary{
  background: rgba(255, 215, 0, 0.12);
  color: var(--premium-gold);
  border: 2px solid var(--premium-gold);
}

.btn-secondary:hover{
  background: rgba(255, 215, 0, 0.22);
  box-shadow: 0 12px 40px rgba(255, 215, 0, 0.4);
  transform: translateY(-3px);
  color: #ffed4e;
}

.gold-only{
  display: block;
}

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

@media (max-width: 768px){
  header{
    flex-direction: column;
    align-items: flex-start;
  }

  header h1{
    font-size: 24px;
  }

  .price{
    font-size: 36px;
  }

  .purity-grid{
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid{
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .price {
    font-size: 24px;
  }
  
  h1 {
    font-size: 20px;
  }
  
  h2 {
    font-size: 18px;
  }
  
  .purity-grid {
    grid-template-columns: 1fr;
  }
  
  canvas {
    max-height: 200px !important;
  }
}