/* shared.css */
  /* GhostyMsg shared: tokens + reset + links + nav */

  :root {
    --bg-app: #0A0A0A;
    --panel: #121212;
    --input: #181818;
    --hover: #1E1E1E;

    --border-subtle: #262626;
    --border-focus: #444444;

    --text-primary: #E0E0E0;
    --text-secondary: #666666;
    --text-tertiary: #333333;


    

    --font-ui: -apple-system, BlinkMacSystemFont, "Inter", system-ui, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;

    --s-4: 4px;
    --s-8: 8px;
    --s-12: 12px;
    --s-16: 16px;
    --s-18: 18px;
    --s-24: 24px;
    --s-32: 32px;
    --s-48: 48px;
    --s-84: 84px;

    --max-width: 1200px;
    --text-max: 720px;

    --pad-x: clamp(14px, 2.2vw, 28px);
    --top-gap: clamp(28px, 5vw, 64px);

    /* nav */
    --nav-link-size: 12px;
    --nav-brand-size: 14px;
    --nav-letter: 0.28em;
    --nav-link-letter: 0.18em;
  }

  /* Reset */
  * { box-sizing: border-box; margin: 0; padding: 0; }
  html, body { height: 100%; }

  body {
    background: var(--bg-app);
    color: var(--text-primary);
    font-family: var(--font-ui);
    font-size: 16px;
    line-height: 1.6;
    letter-spacing: -0.01em;
    -webkit-font-smoothing: antialiased;
  }

  /* Layout helpers */
  .container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--pad-x);
  }

  /* Links: quiet by default */
  a { color: inherit; text-decoration: none; }
  a:focus-visible {
    outline: 1px solid var(--border-focus);
    outline-offset: 2px;
    border-radius: 6px;
  }

  /* Skip link */
  .skip-link {
    position: absolute;
    left: -999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
  }
  .skip-link:focus {
    left: var(--pad-x);
    top: 12px;
    width: auto;
    height: auto;
    padding: 10px 12px;
    border: 1px solid var(--border-subtle);
    background: var(--bg-app);
    color: var(--text-primary);
    z-index: 10;
  }

  /* Shared header/nav */
  .site-header {
    padding-top: var(--top-gap);
    padding-bottom: var(--s-32);
  }

  .nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--s-24);
    flex-wrap: wrap;
  }

  .brand {
    font-family: var(--font-mono);
    letter-spacing: var(--nav-letter);
    text-transform: uppercase;
    font-size: var(--nav-brand-size);
    color: var(--text-secondary);
    white-space: nowrap;
  }

  .nav-links {
    display: flex;
    gap: var(--s-24);
    flex-wrap: wrap;
    justify-content: flex-end;

    font-family: var(--font-mono);
    font-size: var(--nav-link-size);
    letter-spacing: var(--nav-link-letter);
    text-transform: uppercase;
  }

  .nav-links a {
    color: var(--text-secondary);
    padding-bottom: var(--s-4);
    border-bottom: 1px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
  }

  .nav-links a:hover {
    color: var(--text-primary);
    border-bottom-color: var(--border-subtle);
  }

  .nav-links a[aria-current="page"] {
    color: var(--text-primary);
    border-bottom-color: var(--border-focus);
    opacity: 0.85;
  }

  /* Small screens */
  @media (max-width: 520px) {
    .nav { gap: var(--s-12); }
    .nav-links { gap: var(--s-16); }
  }


  /* Shared footer */
  .site-footer {
    padding-top: var(--s-48);
    padding-bottom: var(--s-48);
  }

  .footer-links {
    display: flex;
    gap: var(--s-18);
    flex-wrap: wrap;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-secondary);
    opacity: 0.85;
  }

  .footer-links a:hover {
    color: var(--text-primary);
    opacity: 1;
  }

  .footer-note {
    margin-top: 10px;
    color: var(--text-secondary);
    font-size: 12px;
    opacity: 0.7;
  }