:root {
  --bg: #050505;
  --bg-glow: #1a0f00;
  --orange: #ff9800;
  --orange-dim: #cc7a00;
  --text: #f2f2f2;
  --muted: #8a8a8a;
  --line: #2a2a2a;
  --code: #ff5252;
}

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

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

body {
  font-family: "Segoe UI", "Trebuchet MS", sans-serif;
  color: var(--text);
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, var(--bg-glow), transparent 55%),
    linear-gradient(180deg, #0a0a0a 0%, var(--bg) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.shell {
  width: min(560px, 100%);
  text-align: center;
}

.brand {
  font-family: "Courier New", "Lucida Console", monospace;
  font-size: clamp(1.4rem, 4vw, 1.8rem);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 40px;
  text-shadow: 0 0 24px rgba(255, 152, 0, 0.35);
}

.code {
  font-family: "Courier New", "Lucida Console", monospace;
  font-size: clamp(4rem, 18vw, 6.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--code);
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.title {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.desc {
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.55;
  margin-bottom: 32px;
}

.rule {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
  margin: 0 auto 28px;
  max-width: 280px;
}

.meta {
  font-family: "Courier New", monospace;
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.meta span {
  color: var(--orange-dim);
}