:root {
  color-scheme: light dark;
  --tg-bg: #17212b;
  --tg-text: #f5f5f5;
  --tg-hint: #9ca3af;
  --tg-button: #2ea6ff;
  --tg-button-text: #ffffff;
  --tg-secondary-bg: #202b36;
}

* {
  box-sizing: border-box;
}

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

.screen {
  min-height: 100dvh;
  padding: 16px;
  display: grid;
  gap: 12px;
  align-content: start;
}

h1 {
  margin: 0;
  font-size: 24px;
}

.subtitle {
  margin: 0;
  color: var(--tg-hint);
}

.card {
  background: var(--tg-secondary-bg);
  border-radius: 14px;
  padding: 14px;
  display: grid;
  gap: 10px;
}

.muted {
  margin: 0;
  color: var(--tg-hint);
}

.action-btn {
  width: 100%;
  min-height: 44px;
  border: 0;
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 15px;
  font-weight: 600;
  background: var(--tg-button);
  color: var(--tg-button-text);
}

.action-btn:disabled {
  opacity: 0.7;
}

.result {
  margin: 0;
  padding: 10px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.22);
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 104px;
}