@import url("https://fonts.googleapis.com/css2?family=Dosis:wght@300;400;600;700&display=swap");

:root {
  color-scheme: dark;
  --ink: #f5f5f5;
  --muted: #9b9b9b;
  --accent: #6ea8ff;
  --accent-dark: #3b79d8;
  --paper: #071327;
  --fog: #0b1c34;
  --shadow: rgba(0, 0, 0, 0.5);
  --ring: rgba(110, 168, 255, 0.25);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Dosis", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, var(--fog), var(--paper));
  text-transform: lowercase;
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 56px 24px;
  position: relative;
  overflow: hidden;
}

.card {
  background: #121212;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 18px 50px var(--shadow);
  border-radius: 18px;
  padding: 56px 56px;
  max-width: 640px;
  width: 100%;
  text-align: center;
  animation: float-in 0.9s ease-out both;
}

.slides {
  position: relative;
  min-height: 240px;
}

.slide {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  pointer-events: none;
}

.slide.is-active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.lead {
  margin: 0;
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--muted);
  letter-spacing: 0.04em;
}

.countdown-line {
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 22px;
  border-radius: 10px;
  background: #0f0f0f;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.message {
  margin: 0;
  font-size: clamp(1.4rem, 3.2vw, 2.3rem);
  color: var(--ink);
  line-height: 1.3;
}

.value {
  display: block;
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-variant-numeric: tabular-nums;
  color: var(--accent-dark);
}

.label {
  font-size: 0.85rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.cta {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-size: 1rem;
  letter-spacing: 0.03em;
  box-shadow: 0 8px 18px var(--ring);
  transition: transform 0.25s ease, box-shadow 0.2s ease, background 0.2s ease, opacity 0.25s ease;
}

.cta:hover,
.cta:focus-visible {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px var(--ring);
}

.cta.is-hidden {
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
}

@keyframes float-in {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 640px) {
  .card {
    padding: 36px 24px;
  }
}