@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;600;700&family=IBM+Plex+Sans:wght@300;400;500&display=swap');

  :root {
    --bg: #0a0a0a;
    --surface: #111111;
    --border: #1e1e1e;
    --accent: #e8ff00;
    --accent-dim: #b8cc00;
    --red: #ff3b3b;
    --text: #d4d4d4;
    --muted: #555;
    --code-bg: #161616;
  }

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

  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'IBM Plex Sans', sans-serif;
    font-weight: 300;
    line-height: 1.7;
    min-height: 100vh;
  }

  .container {
    max-width: 860px;
    margin: 0 auto;
    padding: 60px 24px;
  }

  /* HEADER */
  header {
    border-bottom: 1px solid var(--border);
    padding-bottom: 40px;
    margin-bottom: 48px;
  }

  .badge-row {
    display: flex;
    gap: 8px;
    margin-bottom: 28px;
    flex-wrap: wrap;
  }

  .badge {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.08em;
    padding: 3px 8px;
    border: 1px solid var(--border);
    color: var(--muted);
    text-transform: uppercase;
  }

  .badge.gpl { border-color: var(--accent); color: var(--accent); }
  .badge.status { border-color: var(--red); color: var(--red); }

  h1 {
    font-family: 'IBM Plex Mono', monospace;
    font-size: clamp(42px, 8vw, 72px);
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 6px;
  }

  h1 span {
    color: var(--accent);
  }

  .tagline {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
    color: var(--muted);
    letter-spacing: 0.04em;
    margin-top: 12px;
  }

  /* SECTIONS */
  section {
    margin-bottom: 48px;
  }

  h2 {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  h2::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
  }

  p {
    color: var(--text);
    font-size: 15px;
    margin-bottom: 12px;
  }

  /* FLOW DIAGRAM */
  .flow {
    background: var(--code-bg);
    border: 1px solid var(--border);
    padding: 24px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
    line-height: 2;
    overflow-x: auto;
  }

  .flow .node {
    color: #fff;
  }

  .flow .arrow {
    color: var(--muted);
  }

  .flow .highlight {
    color: var(--accent);
    font-weight: 600;
  }

  .flow .danger {
    color: var(--red);
  }

  /* FEATURE GRID */
  .features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
  }

  .feature {
    background: var(--surface);
    padding: 20px;
  }

  .feature-icon {
    font-size: 18px;
    margin-bottom: 8px;
  }

  .feature-title {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 6px;
    letter-spacing: 0.02em;
  }

  .feature-desc {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.5;
    margin: 0;
  }

  /* STACK TABLE */
  table {
    width: 100%;
    border-collapse: collapse;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
  }

  tr {
    border-bottom: 1px solid var(--border);
  }

  tr:last-child { border-bottom: none; }

  td {
    padding: 12px 0;
    vertical-align: top;
  }

  td:first-child {
    color: var(--muted);
    width: 180px;
    padding-right: 24px;
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding-top: 14px;
  }

  td:last-child {
    color: var(--text);
  }

  .tag {
    display: inline-block;
    background: var(--code-bg);
    border: 1px solid var(--border);
    color: var(--accent-dim);
    font-size: 11px;
    padding: 2px 7px;
    margin: 2px 3px 2px 0;
  }

  /* WARNING BOX */
  .warning {
    border-left: 3px solid var(--red);
    background: #160a0a;
    padding: 16px 20px;
    font-size: 13px;
    color: #aa6666;
    font-family: 'IBM Plex Mono', monospace;
  }

  .warning strong {
    color: var(--red);
    display: block;
    margin-bottom: 4px;
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  /* FOOTER */
  footer {
    border-top: 1px solid var(--border);
    padding-top: 32px;
    margin-top: 64px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: gap;
    gap: 12px;
  }

  .footer-left {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    color: var(--muted);
  }

  .footer-left span {
    color: var(--accent);
  }

  /* INSTALL */
  .code-block {
    background: var(--code-bg);
    border: 1px solid var(--border);
    padding: 16px 20px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
    color: #aaa;
    overflow-x: auto;
  }

  .code-block .prompt {
    color: var(--accent);
    user-select: none;
  }

  .code-block .cmd {
    color: #fff;
  }

  .code-block .comment {
    color: var(--muted);
  }