:root {
  --bg: #0d1117;
  --card: #161b22;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #58a6ff;
  --line: #30363d;
  --green: #3fb950;
  --yellow: #d29922;
  --red: #f85149;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  background:
    radial-gradient(circle at top, rgba(88, 166, 255, 0.12), transparent 35%),
    var(--bg);
  color: var(--text);
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(720px, 100%);
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(22, 27, 34, 0.86);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(12px);
}

.terminal-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
}

.terminal-bar span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-bar span:nth-child(1) {
  background: var(--red);
}

.terminal-bar span:nth-child(2) {
  background: var(--yellow);
}

.terminal-bar span:nth-child(3) {
  background: var(--green);
}

.path {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.9rem;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 7vw, 4.2rem);
  line-height: 1;
  letter-spacing: -0.08em;
}

.description {
  max-width: 560px;
  margin: 24px 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

.command {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #0d1117;
  color: var(--text);
}

.prompt {
  color: var(--green);
}

.typing::after {
  content: "_";
  color: var(--accent);
  animation: blink 1s steps(2, start) infinite;
}

footer {
  display: flex;
  gap: 10px;
  margin-top: 36px;
  color: var(--muted);
  font-size: 0.85rem;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

@media (max-width: 520px) {
  .card {
    padding: 24px;
  }

  footer {
    flex-wrap: wrap;
  }
}