:root {
  --background: #050505;
  --secondary-background: #0d0d0f;
  --text-color: #ffffff;
  --secondary-text: #a0a0a0;
  --accent-color: #00bfff;
  --border-color: rgba(255, 255, 255, 0.06);
  --hero-gradient: linear-gradient(180deg, rgba(5, 5, 5, 0.2), rgba(5, 5, 5, 0.72));
  --surface-gradient: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.005));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top, rgba(0, 191, 255, 0.08), transparent 28%),
    linear-gradient(180deg, #050505 0%, #09090b 42%, #0f1113 100%);
  color: var(--text-color);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
}

main {
  min-height: 100vh;
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("../images/background.jpg");
  background-size: cover;
  background-position: center;
  filter: blur(2px) brightness(0.34) contrast(0.95);
  transform: translateY(var(--hero-offset, 0)) scale(1.04);
  animation: heroZoom 30s linear infinite;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: var(--hero-gradient);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.15), rgba(0, 0, 0, 0.9));
  opacity: 0.16;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(760px, calc(100% - 48px));
  text-align: center;
  padding: 48px 0;
}

.hero-logo {
  display: block;
  width: 260px;
  margin: 0 auto 22px;
  transition: transform 0.5s ease;
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--secondary-text);
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
}

.hero h1 {
  font-size: clamp(40px, 7vw, 78px);
  letter-spacing: 2px;
}

.hero h2 {
  margin-top: 12px;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 400;
  color: var(--text-color);
}

.lead {
  max-width: 700px;
  margin: 20px auto 0;
  color: var(--secondary-text);
  font-size: 17px;
  line-height: 1.85;
}

.countdown {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 160px));
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
}

.countdown-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  justify-content: center;
  min-height: 132px;
  padding: 20px 16px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
}

.countdown-value {
  display: block;
  font-size: clamp(38px, 5vw, 58px);
  font-weight: 700;
  line-height: 1;
}

.countdown-label {
  display: block;
  color: var(--secondary-text);
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

@keyframes heroZoom {
  from {
    transform: translateY(var(--hero-offset, 0)) scale(1.04);
  }
  to {
    transform: translateY(var(--hero-offset, 0)) scale(1.1);
  }
}

@media (max-width: 900px) {
  .countdown {
    grid-template-columns: repeat(4, minmax(92px, 1fr));
    width: 100%;
  }
}

@media (max-width: 640px) {
  .hero-logo {
    width: 180px;
  }

  .lead {
    font-size: 15px;
  }

  .countdown {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .countdown-item {
    min-height: 108px;
  }
}