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

body, html {
  height: 100%;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(120deg, #0f2027, #203a43, #2c5364);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.container {
  max-width: 600px;
  padding: 20px;
}

h1 {
  font-size: 48px;
  margin-bottom: 20px;
  letter-spacing: 2px;
}

p {
  font-size: 20px;
  margin-bottom: 40px;
}

.countdown {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.countdown div {
  background: rgba(255, 255, 255, 0.1);
  padding: 20px;
  border-radius: 10px;
  min-width: 80px;
}

.countdown span {
  font-size: 36px;
  font-weight: bold;
  display: block;
}

.countdown small {
  font-size: 14px;
}
style.css