:root {
  --primary: #D0F252;
  --secondary: #C10FF2;
  --accent1: #F2D785;
  --accent2: #77F2FF;
  --dark: #1A1A1A;
  --light: #F5F5F5;
  --gray: #2D2D2D;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: var(--dark);
  color: var(--light);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  flex: 1;
}

.header {
  text-align: center;
  margin-bottom: 30px;
  padding: 20px;
  background: linear-gradient(135deg, var(--gray), var(--dark));
  border-radius: 15px;
  border: 1px solid var(--accent1);
  box-shadow: 0 0 15px rgba(193, 15, 242, 0.2);
}

.header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  background: linear-gradient(to right, var(--primary), var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.header p {
  color: var(--accent1);
  font-size: 1.1rem;
}

.current-rates {
  margin-bottom: 30px;
}

.current-rates h2 {
  margin-bottom: 20px;
  color: var(--primary);
  font-size: 1.8rem;
  text-align: center;
}

.rates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 10px;
}

.rate-card {
  background: var(--gray);
  border-radius: 12px;
  padding:10px;
  display: flex;
  align-items: center;
  transition: all 0.3s ease;
  border: 1px solid transparent;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  border-color: rgb(208, 242, 82, 0.15);
}


#usd {
position: relative;
overflow: hidden;
}
#usd::before {
content: "";
position: absolute;
inset: 0;
background: url("icons/USD.png") no-repeat calc(100% + 30px) center / contain;
opacity: 0.3;
z-index: 0;
}
#usd > * {
position: relative;
z-index: 1;
}

#eur {
position: relative;
overflow: hidden;
}
#eur::before {
content: "";
position: absolute;
inset: 0;
background: url("icons/EUR.png") no-repeat calc(100% + 30px) center / contain;
opacity: 0.3;
z-index: 0;
}
#eur > * {
position: relative;
z-index: 1;
}

#btc {
position: relative;
overflow: hidden;
}
#btc::before {
content: "";
position: absolute;
inset: 0;
background: url("icons/BTC.png") no-repeat calc(100% + 30px) center / contain;
opacity: 0.3;
z-index: 0;
}
#btc > * {
position: relative;
z-index: 1;
}

#eth {
position: relative;
overflow: hidden;
}
#eth::before {
content: "";
position: absolute;
inset: 0;
background: url("icons/ETH.png") no-repeat calc(100% + 30px) center / contain;
opacity: 0.3;
z-index: 0;
}
#eth > * {
position: relative;
z-index: 1;
}

.rate-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent2);
  box-shadow: 0 10px 20px rgba(119, 242, 255, 0.2);
}

.currency-info h3 {
  font-size: 1.3rem;
  margin-bottom: 5px;
}

.rate-value {
  font-size: 1.2rem;
  font-weight: bold;
  margin-bottom: 3px;
}

.rate-change {
  font-size: 0.9rem;
  color: #4CAF50;
}

.rate-change.negative {
  color: #F44336;
}

.chart-section {
  background: var(--gray);
  border-radius: 15px;
  padding: 20px;
  margin-bottom: 30px;
  border: 1px solid var(--secondary);
  box-shadow: 0 0 20px rgba(193, 15, 242, 0.1);
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.chart-header h2 {
  color: var(--accent1);
  font-size: 1.8rem;
  margin-right: 20px;
}

.time-intervals {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 10px 0;
}

.time-btn {
  background: transparent;
  border: 1px solid var(--accent2);
  color: var(--accent2);
  padding: 5px 10px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.time-btn:hover {
  background: rgba(119, 242, 255, 0.1);
}

.time-btn.active {
  background: var(--accent2);
  color: var(--dark);
  font-weight: bold;
}

.currency-select {
  background: var(--dark);
  color: var(--light);
  border: 1px solid var(--primary);
  padding: 8px 15px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.currency-select:hover {
  background: rgba(208, 242, 82, 0.1);
}

option{
  background-color: var(--dark);
}

.chart-container {
  width: 100%;
  height: 400px;
  position: relative;
}

.converter-section {
  background: var(--gray);
  border-radius: 15px;
  padding: 20px;
  border: 1px solid var(--primary);
  box-shadow: 0 0 20px rgba(208, 242, 82, 0.1);
}

.converter-section h2 {
  color: var(--accent2);
  font-size: 1.8rem;
  margin-bottom: 20px;
  text-align: center;
}

.converter {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
}

.converter-input {
  display: flex;
  align-items: center;
  background: var(--dark);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--secondary);
}

.converter-input input {
  background: transparent;
  border: none;
  color: var(--light);
  padding: 12px 15px;
  font-size: 1.1rem;
  width: 150px;
}

.converter-input input:focus {
  outline: none;
  background: rgba(193, 15, 242, 0.05);
}

.converter-input select {
  background: var(--secondary);
  color: var(--light);
  border: none;
  padding: 12px;
  cursor: pointer;
  font-weight: bold;
}

.converter-arrow {
  font-size: 1.5rem;
  color: var(--accent1);
  transition: transform 0.3s ease;
}



.swap-btn {
  background: linear-gradient(135deg, var(--primary), var(--accent1));
  color: var(--dark);
  border: none;
  padding: 10px 20px;
  border-radius: 20px;
  cursor: pointer;
  font-weight: bold;
  transition: all 0.3s ease;
}

.swap-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(208, 242, 82, 0.4);
}

footer {
  text-align: center;
  padding: 20px;
  color: var(--accent1);
  font-size: 0.9rem;
  margin-top: 20px;
  width: 100%;
}

footer p {
  margin: 0;
  text-align: center;
}

@media (max-width: 768px) {
  .rates-grid {
      grid-template-columns: 1fr 1fr;
  }
  
  .chart-header {
      flex-direction: column;
      align-items: flex-start;
  }
  
  .time-intervals {
      margin-top: 15px;
  }
  
  .converter {
      flex-direction: column;
  }
  
  .converter-arrow {
      transform: rotate(90deg);
  }
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.rate-card.loading {
  animation: pulse 1.5s infinite;
}