:root {
  --promo-bg: #0b0f14;
  --promo-accent: #149ddd;
  --promo-text: #ffffff;
  --promo-muted: rgba(255, 255, 255, 0.72);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body.promo-page {
  min-height: 100vh;
  background: radial-gradient(ellipse at 50% 20%, #15202b 0%, var(--promo-bg) 55%, #05070a 100%);
  color: var(--promo-text);
  font-family: "Poppins", sans-serif;
  overflow: hidden;
}

#particles-js {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
}

.promo-content {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
}

.promo-brand {
  margin: 0 0 1.25rem;
  font-family: "Raleway", sans-serif;
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.promo-headline {
  margin: 0 0 0.75rem;
  font-family: "Raleway", sans-serif;
  font-size: clamp(1.35rem, 4vw, 2rem);
  font-weight: 600;
  color: var(--promo-accent);
}

.promo-event {
  margin: 0 0 0.5rem;
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  font-weight: 500;
}

.promo-tagline {
  margin: 0 0 2rem;
  max-width: 28rem;
  font-size: 0.95rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--promo-muted);
}

.promo-enter {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border: 1px solid var(--promo-accent);
  color: var(--promo-text);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background-color 0.25s ease, color 0.25s ease;
}

.promo-enter:hover,
.promo-enter:focus-visible {
  background-color: var(--promo-accent);
  color: #fff;
  outline: none;
}