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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--tg-theme-bg-color, #ffffff);
  color: var(--tg-theme-text-color, #000000);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.container {
  max-width: 400px;
  width: 100%;
}

.header {
  text-align: center;
  margin-bottom: 30px;
}

.header h1 {
  font-size: 24px;
  margin-bottom: 10px;
  color: var(--tg-theme-text-color, #000);
}

.header p {
  color: var(--tg-theme-hint-color, #999);
  font-size: 14px;
}

.section {
  text-align: center;
}

.section.hidden {
  display: none;
}

.status {
  background: var(--tg-theme-secondary-bg-color, #f0f0f0);
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 14px;
  min-height: 20px;
}

.status:empty {
  display: none;
}

.primary-btn {
  background: var(--tg-theme-button-color, #3390ec);
  color: var(--tg-theme-button-text-color, #ffffff);
  border: none;
  padding: 16px 32px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  transition: opacity 0.2s;
}

.primary-btn:active {
  opacity: 0.8;
}

.secondary-btn {
  background: transparent;
  color: var(--tg-theme-button-color, #3390ec);
  border: 2px solid var(--tg-theme-button-color, #3390ec);
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 16px;
  transition: opacity 0.2s;
}

.secondary-btn:active {
  opacity: 0.8;
}

.hint {
  color: var(--tg-theme-hint-color, #999);
  font-size: 12px;
  margin-top: 12px;
}

.loader {
  border: 3px solid var(--tg-theme-hint-color, #f3f3f3);
  border-top: 3px solid var(--tg-theme-button-color, #3390ec);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 1s linear infinite;
  margin: 0 auto 20px;
}

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

#loading-text {
  color: var(--tg-theme-hint-color, #999);
  font-size: 14px;
}

.success-icon,
.error-icon {
  font-size: 64px;
  margin-bottom: 20px;
}

h2 {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--tg-theme-text-color, #000);
}

.wallet-address {
  background: var(--tg-theme-secondary-bg-color, #f0f0f0);
  padding: 12px;
  border-radius: 8px;
  font-family: monospace;
  font-size: 12px;
  margin-top: 16px;
  word-break: break-all;
  color: var(--tg-theme-text-color, #000);
}

#error-message {
  color: #e74c3c;
  margin-bottom: 8px;
  font-size: 14px;
}