:root {
  color-scheme: light dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--tg-theme-bg-color, #ffffff);
  color: var(--tg-theme-text-color, #111111);
}

.app {
  padding: 20px 16px 32px;
  max-width: 560px;
  margin: 0 auto;
}

.screen {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hidden {
  display: none !important;
}

h1 {
  font-size: 22px;
  margin: 8px 0;
}

h2 {
  font-size: 18px;
  margin: 4px 0;
}

.text-muted {
  color: var(--tg-theme-hint-color, #707579);
  line-height: 1.4;
  font-size: 15px;
}

.meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--tg-theme-secondary-bg-color, #f4f4f5);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 14px;
}

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.4;
  padding: 10px 0;
  border-bottom: 1px solid var(--tg-theme-secondary-bg-color, #eeeeee);
}

.checkbox-row input {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}

.checkbox-row a {
  color: var(--tg-theme-link-color, #2481cc);
}

.btn {
  border: none;
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--tg-theme-button-color, #2481cc);
  color: var(--tg-theme-button-text-color, #ffffff);
}

.btn-secondary {
  background: var(--tg-theme-secondary-bg-color, #f0f0f0);
  color: var(--tg-theme-text-color, #111111);
}

.btn-danger {
  background: #e53e3e;
  color: #ffffff;
}

.spinner {
  width: 32px;
  height: 32px;
  margin: 60px auto;
  border-radius: 50%;
  border: 3px solid var(--tg-theme-secondary-bg-color, #e0e0e0);
  border-top-color: var(--tg-theme-button-color, #2481cc);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}