:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #171a20;
  color: #c8ced8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top, rgb(58 71 91 / 45%), transparent 45rem),
    #171a20;
}

.landing-page {
  display: grid;
  grid-template-rows: 1fr auto;
  gap: clamp(2rem, 7vh, 5rem);
  min-height: 100svh;
  padding: clamp(1.5rem, 5vw, 4rem);
  text-align: center;
}

.hero {
  display: grid;
  align-content: center;
  gap: clamp(3rem, 10vh, 6rem);
}

.landing-page h1 {
  margin: 0;
  font-size: clamp(1.75rem, 5vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
}

.answer {
  min-width: min(75vw, 22rem);
  margin: 0 auto;
  padding: 1.5rem 2.5rem;
  border: 1px solid rgb(151 167 190 / 12%);
  border-radius: 1.5rem;
  background: rgb(38 43 52 / 72%);
  box-shadow: 0 1.5rem 4rem rgb(0 0 0 / 18%);
  color: #9cacc2;
  font-size: clamp(3.5rem, 16vw, 7rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  backdrop-filter: blur(0.75rem);
}

.countdown[hidden] {
  display: none;
}

.countdown-heading {
  margin: 0 0 0.75rem;
  color: #7f8b9c;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.countdown-units {
  display: flex;
  justify-content: center;
  gap: clamp(1.5rem, 7vw, 4rem);
}

.countdown-unit {
  display: grid;
  gap: 0.25rem;
  min-width: 3.5rem;
  margin: 0;
  color: #7f8b9c;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.countdown-value {
  color: #c8ced8;
  font-size: clamp(1.5rem, 5vw, 2.25rem);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
}