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

body {
  font-family: Arial, sans-serif;
  background: #0b1621;
  color: #ffffff;
  height: 100vh;
  overflow: hidden;
}

/* Particle layer */
#particles-js {
  position: fixed;
  width: 100%;
  height: 100%;
  z-index: -1;
}

/* Center content */
.container {
  height: calc(100vh - 60px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 24px;
}

.logo {
  width: 170px;
  margin-bottom: 22px;
}

h1 {
  font-size: 42px;
  margin-bottom: 12px;
}

p {
  font-size: 19px;
  max-width: 420px;
}

/* Footer */
footer {
  text-align: center;
  font-size: 14px;
  padding: 18px;
  position: fixed;
  bottom: 0;
  width: 100%;
  color: #d5e6f9;
}

/* Mobile */
@media (max-width: 600px) {
  .logo {
    width: 130px;
  }
  h1 {
    font-size: 32px;
  }
  p {
    font-size: 16px;
  }
}