@font-face {
  font-family: 'Berkeley Mono Variable';
  src: url('/assets/Berkeley Mono Variable.woff2') format('woff2');
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --fg: #000;
  --dim: #999;
}

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

body {
  background: #fff;
  color: var(--fg);
  font-family: 'Berkeley Mono Variable', 'Berkeley Mono', monospace;
  min-height: 100vh;
  overflow: hidden;
}

/* — Logo wrapper — */

.logo-wrap {
  position: relative;
  margin-bottom: 3rem;
}

/* — Concentric pulse rings — */

.rings {
  position: absolute;
  top: 50%;
  left: 10.09%;
  pointer-events: none;
  z-index: 0;
}

.ring {
  position: absolute;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: ripple 12s ease-out infinite;
}

.ring:nth-child(1) { animation-delay: 0s; }
.ring:nth-child(2) { animation-delay: 2.4s; }
.ring:nth-child(3) { animation-delay: 4.8s; }
.ring:nth-child(4) { animation-delay: 7.2s; }
.ring:nth-child(5) { animation-delay: 9.6s; }

@keyframes ripple {
  0% {
    width: 0;
    height: 0;
    opacity: 1;
  }
  100% {
    width: 150vmax;
    height: 150vmax;
    opacity: 0;
  }
}

/* — Page — */

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

.logo {
  position: relative;
  z-index: 1;
  display: block;
}

.motto {
  font-size: 1.1rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 3rem;
}

.foot {
  position: fixed;
  bottom: 1.5rem;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.5rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dim);
}

@media (max-width: 520px) {
  .logo {
    width: 280px;
    height: auto;
  }

  .motto {
    font-size: 0.8rem;
  }
}