body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', system-ui;
  background: #f5f7fa;
  color: #2c3e50;
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

header {
  text-align: center;
  margin-bottom: 2rem;
  padding: 1rem;
  background: linear-gradient(135deg, #6e8efb, #a777e3);
  border-radius: 12px;
  color: white;
  box-shadow: 0 4px 20px rgba(110, 142, 251, 0.2);
}

header h1 {
  margin: 0;
  font-size: 2.2rem;
}

header p {
  opacity: 0.9;
  margin: 0.5rem 0 0;
}

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

.token-card {
  background: white;
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}

.token-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.12);
}

.token-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
}

#tokenA::before {
  background: linear-gradient(90deg, #6e8efb, #a777e3);
}

#tokenB::before {
  background: linear-gradient(90deg, #42d392, #647eff);
}

.input-group {
  margin: 1.2rem 0;
  position: relative;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: #4a5568;
}

input[type="number"] {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  font-size: 1rem;
  transition: all 0.2s;
  background: #f8fafc;
}

input[type="number"]:focus {
  border-color: #a777e3;
  box-shadow: 0 0 0 3px rgba(167, 119, 227, 0.2);
  outline: none;
  background: white;
}

.exchange-results {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.result-card, .conversion-card {
  background: white;
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  transition: transform 0.3s;
  position: relative;
}

.result-card:hover, .conversion-card:hover {
  transform: translateY(-5px);
}

.price-display {
  font-size: 1.2rem;
  font-weight: 500;
  color: #2c3e50;
  margin-top: 1rem;
}

.price-display div {
  display: flex;
  align-items: center;
  margin: 0.7rem 0;
  padding: 0.7rem;
  background: #f8fafc;
  border-radius: 8px;
}

.token-icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  margin-right: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
}

.token-a-icon {
  background: linear-gradient(135deg, #6e8efb, #a777e3);
}

.token-b-icon {
  background: linear-gradient(135deg, #42d392, #647eff);
}

.rate-display {
  font-size: 2rem;
  font-weight: bold;
  color: #4a5568;
  text-align: center;
  padding: 1.5rem 0;
  position: relative;
}

.rate-arrow {
  color: #a777e3;
  font-size: 1.5rem;
  margin: 0 0.5rem;
}

.conversion-card .result-display {
  font-size: 1.4rem;
  font-weight: bold;
  color: #3182ce;
  margin-top: 1.5rem;
  text-align: center;
  padding: 1rem;
  background: #ebf8ff;
  border-radius: 8px;
  transition: all 0.3s;
}

h2, h3 {
  margin-top: 0;
  color: #2d3748;
  font-weight: 600;
}

.formula-container {
  margin-top: 3rem;
  background: white;
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.formula-display {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
}

.formula {
  text-align: center;
  padding: 1rem;
  background: #f8fafc;
  border-radius: 8px;
  font-family: 'Times New Roman', serif;
  font-size: 1.2rem;
}

.bonding-curve {
  height: 200px;
  margin: 1rem 0;
}

.slider-container {
  position: relative;
  padding-top: 10px;
}

.slider-value {
  position: absolute;
  top: -20px;
  right: 0;
  font-size: 0.9rem;
  color: #6b7280;
}