@import url('https://fonts.googleapis.com/css2?family=Inter:wght@100..900&display=swap');

    :root {
      --bg: #232323;
      --bg-alt: #0b0d12;
      --text: #d7dce2;
      --muted: #9aa4b2;
      --accent: #6aa3ff;
      --border: #232323;
      --card: #1c1c1c;
      --code-bg: #202020;
      --shadow: 0 0 0 1px var(--border), 0 8px 24px rgba(0,0,0,.0);
      --radius: 14px;
      --maxw: 820px;
      --lh: 1.65;
      --font: Inter, Roboto, -apple-system, "Helvetica Neue" , "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
      --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    }

    /*
    @media (prefers-color-scheme: light) {
      :root {
        --bg: #f8fafc;
        --bg-alt: #ffffff;
        --text: #0b1220;
        --muted: #48546b;
        --accent: #2458ff;
        --border: #e6e8ee;
        --card: #ffffff;
        --code-bg: #f2f4f8;
        --shadow: 0 0 0 1px var(--border), 0 8px 24px rgba(20,20,20,.06);
      }
    } */

    html, body { height: 100%; background: var(--bg) /*radial-gradient(1200px 8000px at 20% -10%, var(--bg-alt), var(--bg)); */}
    body {
      margin: 0;
      color: var(--text);
      font-family: var(--font);
      line-height: var(--lh);
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    .wrap {
      display: grid;
      grid-template-columns: 1fr minmax(0, var(--maxw)) 1fr;
      padding: 48px 20px 96px;
    }
    main {
      grid-column: 2;
      /* background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0)) ; */
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: clamp(20px, 4vw, 44px);
    }

    .logo{
      width: 80px;

      user-select: none; 
      -webkit-user-select: none;
      -moz-user-select: none; 
      -ms-user-select: none; 
      pointer-events: none; 
    }

    header.page-header {
      display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap;
      gap: 16px; margin-bottom: 12px;
    }
    .title {
      font-size: clamp(22px, 3.4vw, 34px);
      font-weight: 700;
      letter-spacing: .2px;
    }
    .meta {
      font-size: 14px; color: var(--muted);
    }

    .notice {
      margin: 12px 0 28px;
      padding: 14px 16px;
      background: var(--card);
      border: 1px dashed var(--border);
      border-radius: 12px;
      color: var(--muted);
      font-size: 14px;
    }

    h2, h3 {
      margin: 28px 0 10px;
      line-height: 1.35;
      position: relative;
      scroll-margin-top: 76px;
    }
    h2 { font-size: clamp(18px, 2.2vw, 22px); border-bottom: 1px solid var(--border); padding-bottom: 6px; }
    h3 { font-size: 18px; color: var(--muted); }

    p, ul { margin: 10px 0 0; }
    ul { padding-left: 1.1em; }
    li + li { margin-top: 6px; }

    a { color: var(--accent); text-decoration: none; }
    a:hover { text-decoration: underline; }

    code, .mono { font-family: var(--mono); background: var(--code-bg); padding: .2em .4em; border-radius: 8px; font-size: .95em; }

    /* Heading anchor like Obsidian */
    .anchor {
      position: absolute; left: -1.2em; opacity: 0; text-decoration: none; user-select: none;
      transition: opacity .2s ease;
    }
    h2:hover .anchor, h3:hover .anchor { opacity: .6; }
    .anchor::before { content: "#"; color: var(--muted); }
    @media (max-width: 700px) { .anchor { display: none; } }

    footer {
      grid-column: 2;
      margin-top: 18px;
      color: var(--muted);
      font-size: 13px;
      text-align: center;
    }

    .toc {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 12px 14px;
      font-size: 0.75rem;
      margin: 20px 0 8px;
    }
    .toc b { color: var(--muted); font-weight: 600; }
    .toc ul { list-style: none; padding-left: 0; margin: 8px 0 0; }
    .toc li { margin: 6px 0; }
    .toc a { text-decoration: none; }