:root {
  color-scheme: dark;
  --background: #070a0d;
  --surface: #0c1117;
  --line: #1c2833;
  --text: #e8edf2;
  --muted: #748391;
  --signal: #62f6b4;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background:
    linear-gradient(rgba(98, 246, 180, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(98, 246, 180, 0.025) 1px, transparent 1px),
    var(--background);
  background-size: 48px 48px;
  color: var(--text);
  font-family: "Courier New", Courier, monospace;
}

.terminal {
  width: min(1120px, calc(100% - 48px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 40px 0 32px;
  display: flex;
  flex-direction: column;
}

.status {
  align-self: flex-start;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--signal);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
}

.status__light {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 14px var(--signal);
  animation: pulse 2.4s ease-in-out infinite;
}

.identity {
  margin: auto 0;
  padding: 72px 0;
}

.eyebrow,
.experiment,
footer {
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.eyebrow {
  margin: 0 0 20px;
  color: var(--signal);
  font-size: clamp(0.68rem, 1.2vw, 0.82rem);
}

h1 {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(3.4rem, 12vw, 9.5rem);
  font-weight: 800;
  line-height: 0.8;
  letter-spacing: -0.075em;
}

.experiment {
  margin: 0;
  color: var(--muted);
  font-size: clamp(0.72rem, 1.5vw, 0.92rem);
}

.identity__meta {
  margin-top: 34px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.identity__actions {
  display: flex;
  align-items: center;
  gap: 22px;
}

.brand-mark {
  width: clamp(54px, 7vw, 78px);
  height: auto;
  display: block;
  opacity: 0.62;
}

.interface-control {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-decoration: none;
  text-transform: uppercase;
  transition:
    border-color 160ms ease,
    color 160ms ease,
    background-color 160ms ease;
}

.interface-control:hover,
.interface-control:focus-visible {
  border-color: var(--signal);
  background: rgba(98, 246, 180, 0.04);
  color: var(--signal);
}

.interface-control:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 4px;
}

.identity--placeholder h1 {
  font-size: clamp(3.4rem, 10vw, 8rem);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.64rem;
}

@keyframes pulse {
  50% {
    opacity: 0.4;
  }
}

@media (max-width: 520px) {
  .terminal {
    width: min(100% - 32px, 1120px);
    padding-top: 24px;
  }

  h1,
  .identity--placeholder h1 {
    font-size: 3rem;
  }

  footer {
    flex-direction: column;
    gap: 8px;
  }

  .identity__meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 26px;
  }

  .identity__actions {
    width: 100%;
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .status__light {
    animation: none;
  }
}