* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: #fafafa;
  color: #111;
  font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, system-ui, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.app {
  text-align: center;
  padding: 60px 40px;
  width: 100%;
  max-width: 560px;
}

.cycle-label {
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #9ca3af;
  font-weight: 500;
  margin-bottom: 18px;
}

.amount-row {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 6px;
}

.amount {
  font-weight: 200;
  font-size: 72px;
  letter-spacing: -2px;
  line-height: 1;
  color: #111;
  font-variant-numeric: tabular-nums;
}

.currency {
  font-size: 32px;
  color: #9ca3af;
  font-weight: 300;
}

.progress-row {
  margin: 36px auto 0;
  max-width: 420px;
}

.progress-bar {
  height: 4px;
  background: #e5e7eb;
  border-radius: 2px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0;
  background: #111;
  transition: width 0.4s ease;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-size: 12px;
  color: #6b7280;
  font-variant-numeric: tabular-nums;
}

.rates {
  margin-top: 28px;
  display: flex;
  gap: 36px;
  justify-content: center;
}

.rate { text-align: center; }

.rate-value {
  font-size: 14px;
  color: #111;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.rate-label {
  font-size: 10px;
  color: #9ca3af;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-top: 2px;
}

.status-line {
  margin-top: 36px;
  font-size: 12px;
  color: #6b7280;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #d1d5db;
}

.status-dot.active { background: #10b981; }

.mock-badge {
  position: fixed;
  top: 12px;
  right: 12px;
  background: #fef3c7;
  color: #92400e;
  font-size: 11px;
  letter-spacing: 1px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid #fde68a;
  z-index: 10;
}

@media (max-width: 719px) {
  .app { padding: 40px 24px; }
  .amount { font-size: 56px; letter-spacing: -1.5px; }
  .currency { font-size: 26px; }
  .progress-row { margin-top: 28px; }
  .rates { gap: 24px; margin-top: 22px; }
}

@media (max-width: 479px) {
  .app { padding: 24px 16px; }
  .amount { font-size: 44px; letter-spacing: -1px; }
  .currency { font-size: 20px; }
  .rate-value { font-size: 13px; }
  .rates { gap: 16px; }
}

@media (max-width: 359px) {
  .rates {
    flex-direction: column;
    gap: 10px;
  }
  .rate {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    border-top: 1px solid #e5e7eb;
    padding-top: 8px;
  }
  .rate-label { margin-top: 0; }
}