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

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: #ffffff;
  color: #1a1a1a;
  line-height: 1.6;
}

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

/* Header */
.header {
  background-color: #ffffff;
  border-bottom: 1px solid #e5e5e5;
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 40px;
}

.logo {
  height: 32px;
  width: auto;
}

.nav-menu {
  display: flex;
  gap: 32px;
}

.nav-link {
  text-decoration: none;
  color: #666666;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-link:hover {
  color: #00b140;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.balance {
  color: #666666;
  font-weight: 500;
}

.connect-btn {
  background-color: #00b140;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
}

.connect-btn:hover {
  background-color: #009635;
}

/* Main Content */
.main-content {
  padding: 60px 0;
}

/* Hero Section */
.hero-section {
  text-align: center;
  margin-bottom: 80px;
}

.level-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: #f0f9f4;
  border: 1px solid #00b140;
  padding: 8px 16px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.level-text {
  color: #00b140;
  font-weight: 700;
  font-size: 14px;
}

.achievement {
  background-color: #00b140;
  color: white;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 600;
}

.hero-title {
  font-size: 48px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 20px;
  color: #666666;
  margin-bottom: 40px;
}

.reward-amount {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
  margin-bottom: 40px;
}

.currency-symbol {
  font-size: 32px;
  color: #00b140;
  font-weight: 700;
}

.amount {
  font-size: 72px;
  font-weight: 700;
  color: #00b140;
}

.reward-text {
  font-size: 20px;
  color: #666666;
  font-weight: 500;
}

/* Reward Section */
.reward-section {
  margin-bottom: 80px;
}

.reward-card {
  background-color: #f8f9fa;
  border: 1px solid #e5e5e5;
  border-radius: 12px;
  padding: 40px;
  text-align: center;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 12px;
}

.section-description {
  font-size: 16px;
  color: #666666;
  margin-bottom: 40px;
}

.crypto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}

.crypto-option {
  background-color: white;
  border: 2px solid #e5e5e5;
  border-radius: 8px;
  padding: 20px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.crypto-option:hover {
  border-color: #00b140;
  transform: translateY(-2px);
}

.crypto-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  color: white;
}

.crypto-icon.btc {
  background-color: #f7931a;
}

.crypto-icon.eth {
  background-color: #627eea;
}

.crypto-icon.usdt {
  background-color: #26a17b;
}

.crypto-icon.bnb {
  background-color: #f3ba2f;
}

.crypto-name {
  font-weight: 600;
  color: #1a1a1a;
}

.crypto-symbol {
  font-size: 14px;
  color: #666666;
}

.claim-btn {
  background-color: #00b140;
  color: white;
  border: none;
  padding: 16px 32px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
}

.claim-btn:hover {
  background-color: #009635;
}

/* Stats Section */
.stats-section {
  margin-bottom: 80px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.stat-card {
  background-color: #f8f9fa;
  border: 1px solid #e5e5e5;
  border-radius: 8px;
  padding: 32px 24px;
  text-align: center;
}

.stat-value {
  font-size: 36px;
  font-weight: 700;
  color: #00b140;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 16px;
  color: #666666;
  font-weight: 500;
}

/* Footer */
.footer {
  background-color: #f8f9fa;
  border-top: 1px solid #e5e5e5;
  padding: 40px 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-logo {
  height: 24px;
  width: auto;
}

.footer-text {
  color: #666666;
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-link {
  text-decoration: none;
  color: #666666;
  font-size: 14px;
  transition: color 0.2s;
}

.footer-link:hover {
  color: #00b140;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .hero-title {
    font-size: 36px;
  }

  .amount {
    font-size: 56px;
  }

  .reward-card {
    padding: 24px;
  }

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

  .footer-content {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .crypto-grid {
    grid-template-columns: 1fr;
  }

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