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

body {
  background: #1e1e2e;
  color: #cba6f7;
  font-family: 'Courier New', monospace;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.countdown-border {
  border: 3px solid #cba6f7;
  padding: 40px;
  text-align: center;
}

.countdown, .message {
  font: bold clamp(2rem, 5vw, 4rem) 'Courier New', monospace;
  letter-spacing: 0.1em;
}

.time-unit {
  display: inline-block;
}

.separator {
  margin: 0 2px;
}

.hidden {
  display: none;
}

@media (max-width: 800px) {
  .countdown-border {
    padding: 20px;
    margin: 20px;
  }

  .countdown {
    font-size: min(calc((100vw - 80px) / 4), calc((100vh - 200px) / 4));
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .time-unit {
    display: block;
  }

  .separator {
    display: none;
  }

  .message {
    font-size: min(calc((100vw - 80px) / 4), calc((100vh - 200px) / 4));
  }
}