.countdown-box {
  display: none;
  max-width: 860px;
  margin: 24px auto;
  padding: 24px;
  border-radius: 20px;
  background: linear-gradient(135deg, #0d6efd, #6f42c1);
  color: #fff;
  text-align: center;
  box-shadow: 0 18px 45px rgba(0,0,0,0.18);
}

.countdown-box.visible {
  display: block;
}

.countdown-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.countdown-message {
  font-size: 18px;
  margin-bottom: 16px;
  opacity: 0.95;
}

.countdown-timer {
  font-size: clamp(42px, 8vw, 86px);
  font-weight: 800;
  letter-spacing: 2px;
  line-height: 1;
  margin: 12px 0;
}

.countdown-start {
  font-size: 15px;
  opacity: 0.9;
}

.countdown-live {
  background: linear-gradient(135deg, #198754, #20c997);
}