:root {
      --bg: #0d0f16;
      --bg-elev: #14161f;
      --panel: #1a1b26;
      --panel-2: #1f2335;
      --line: #2a2e3f;
      --fg: #c0caf5;
      --muted: #7a8199;
      --accent: #7dcfff;
      --accent-dim: rgba(125, 207, 255, 0.14);
      --green: #9ece6a;
      --amber: #e0af68;
      --rose: #f7768e;
      --blue: #7aa2f7;
      --radius: 14px;
      --max: 1080px;
      --font-display: "Syne", system-ui, sans-serif;
      --font-mono: "IBM Plex Mono", ui-monospace, monospace;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--fg);
      font-family: var(--font-mono);
      font-size: 15px;
      line-height: 1.65;
      background:
        radial-gradient(1200px 600px at 12% -10%, rgba(125, 207, 255, 0.16), transparent 55%),
        radial-gradient(900px 500px at 100% 0%, rgba(122, 162, 247, 0.1), transparent 50%),
        linear-gradient(180deg, #0b0d14 0%, var(--bg) 40%, #0a0c12 100%);
      min-height: 100vh;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(125, 207, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(125, 207, 255, 0.03) 1px, transparent 1px);
      background-size: 48px 48px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,0.55), transparent 70%);
      z-index: 0;
    }

    a { color: var(--accent); text-decoration: none; }
    a:hover { text-decoration: underline; text-underline-offset: 3px; }

    .wrap {
      position: relative;
      z-index: 1;
      width: min(100% - 2rem, var(--max));
      margin: 0 auto;
    }

    /* —— Nav —— */
    .topnav {
      position: sticky;
      top: 0;
      z-index: 20;
      backdrop-filter: blur(14px);
      background: rgba(13, 15, 22, 0.72);
      border-bottom: 1px solid rgba(42, 46, 63, 0.8);
    }
    .topnav .inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      padding: 0.85rem 0;
      width: min(100% - 2rem, var(--max));
      margin: 0 auto;
    }
    .brand-lockup {
      display: flex;
      align-items: center;
      gap: 0.7rem;
      color: var(--fg);
      text-decoration: none;
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 1.15rem;
      letter-spacing: -0.02em;
    }
    .brand-lockup img {
      width: 36px;
      height: 36px;
      border-radius: 9px;
    }
    .nav-links {
      display: flex;
      flex-wrap: wrap;
      gap: 0.35rem 1.1rem;
      font-size: 0.82rem;
    }
    .nav-links a {
      color: var(--muted);
      text-decoration: none;
    }
    .nav-links a:hover { color: var(--accent); }

    /* —— Hero —— */
    .hero {
      padding: 4.5rem 0 3.5rem;
      animation: rise 0.8s ease both;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 2.5rem;
      align-items: end;
    }
    @media (max-width: 820px) {
      .hero-grid { grid-template-columns: 1fr; }
      .hero-visual { order: -1; justify-self: start; }
    }
    .hero-brand {
      display: flex;
      align-items: center;
      gap: 1rem;
      margin-bottom: 1.25rem;
    }
    .hero-brand img {
      width: 72px;
      height: 72px;
      border-radius: 18px;
      box-shadow: 0 0 0 1px rgba(125, 207, 255, 0.25), 0 18px 50px rgba(0, 0, 0, 0.45);
      animation: glow 4s ease-in-out infinite;
    }
    .hero-wordmark {
      font-family: var(--font-display);
      font-weight: 800;
      font-size: clamp(2.6rem, 7vw, 4.2rem);
      letter-spacing: -0.045em;
      line-height: 0.95;
      margin: 0;
      background: linear-gradient(120deg, #eef3ff 10%, var(--accent) 90%);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .hero h1 {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: clamp(1.35rem, 2.8vw, 1.85rem);
      letter-spacing: -0.03em;
      line-height: 1.25;
      margin: 0 0 0.85rem;
      max-width: 18ch;
      color: #e8ecff;
    }
    .hero p.lead {
      margin: 0 0 1.6rem;
      color: var(--muted);
      max-width: 42ch;
      font-size: 0.95rem;
    }
    .cta-row { display: flex; flex-wrap: wrap; gap: 0.7rem; }
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 0.45rem;
      padding: 0.7rem 1.05rem;
      border-radius: 999px;
      border: 1px solid transparent;
      font-family: var(--font-mono);
      font-size: 0.82rem;
      font-weight: 500;
      text-decoration: none;
      transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
    }
    .btn:hover { transform: translateY(-1px); text-decoration: none; }
    .btn-primary {
      background: var(--accent);
      color: #0d1117;
    }
    .btn-ghost {
      background: transparent;
      color: var(--fg);
      border-color: var(--line);
    }
    .btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

    .hero-visual {
      position: relative;
      width: min(100%, 340px);
      aspect-ratio: 1;
      border-radius: 28px;
      background:
        radial-gradient(circle at 30% 25%, rgba(125, 207, 255, 0.22), transparent 45%),
        linear-gradient(145deg, #1a1b26, #12141c);
      border: 1px solid var(--line);
      display: grid;
      place-items: center;
      overflow: hidden;
      animation: rise 0.9s 0.1s ease both;
    }
    .hero-visual::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 60%, rgba(13, 15, 22, 0.55));
      pointer-events: none;
    }
    .hero-visual img {
      width: 58%;
      height: auto;
      border-radius: 22%;
      position: relative;
      z-index: 1;
      filter: drop-shadow(0 12px 30px rgba(125, 207, 255, 0.25));
    }

    /* —— Sections —— */
    section {
      padding: 3.25rem 0;
      border-top: 1px solid rgba(42, 46, 63, 0.65);
      animation: rise 0.7s ease both;
    }
    .eyebrow {
      display: inline-block;
      font-size: 0.72rem;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: 0.65rem;
    }
    section h2 {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: clamp(1.6rem, 3vw, 2.1rem);
      letter-spacing: -0.03em;
      margin: 0 0 0.55rem;
      color: #eef2ff;
    }
    .section-lead {
      color: var(--muted);
      max-width: 62ch;
      margin: 0 0 1.75rem;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1rem;
    }
    @media (max-width: 720px) {
      .grid-2 { grid-template-columns: 1fr; }
    }

    .card {
      background: linear-gradient(180deg, rgba(26, 27, 38, 0.95), rgba(20, 22, 31, 0.92));
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 1.15rem 1.2rem;
    }
    .card h3 {
      font-family: var(--font-display);
      font-size: 1.05rem;
      margin: 0 0 0.45rem;
      letter-spacing: -0.02em;
    }
    .card p { margin: 0; color: var(--muted); font-size: 0.88rem; }

    .release-banner {
      background: linear-gradient(135deg, rgba(125, 207, 255, 0.12), rgba(122, 162, 247, 0.08));
      border: 1px solid rgba(125, 207, 255, 0.35);
      border-radius: calc(var(--radius) + 4px);
      padding: 1.35rem 1.5rem;
      margin: 0 0 2rem;
    }
    .release-banner-head {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 0.65rem 1rem;
      margin-bottom: 1rem;
    }
    .release-badge {
      display: inline-block;
      font-size: 0.72rem;
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      padding: 0.25rem 0.55rem;
      border-radius: 999px;
      background: var(--green);
      color: #0d1117;
    }
    .release-version {
      font-family: var(--font-display);
      font-size: 1.35rem;
      font-weight: 700;
      letter-spacing: -0.03em;
      color: #eef2ff;
      margin: 0;
    }
    .release-banner p {
      margin: 0 0 1.1rem;
      color: var(--muted);
      font-size: 0.9rem;
      max-width: 58ch;
    }
    .download-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 0.85rem;
    }
    .download-card {
      display: flex;
      flex-direction: column;
      gap: 0.35rem;
      padding: 1rem 1.1rem;
      border-radius: var(--radius);
      border: 1px solid var(--line);
      background: rgba(13, 15, 22, 0.55);
      text-decoration: none;
      color: var(--fg);
      transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
    }
    .download-card:hover {
      border-color: var(--accent);
      background: rgba(125, 207, 255, 0.06);
      transform: translateY(-2px);
      text-decoration: none;
    }
    .download-card strong {
      font-family: var(--font-display);
      font-size: 1rem;
      letter-spacing: -0.02em;
    }
    .download-card span {
      font-size: 0.78rem;
      color: var(--muted);
    }
    .download-card .dl-arrow {
      margin-top: 0.35rem;
      font-size: 0.82rem;
      color: var(--accent);
    }
    .release-foot {
      margin-top: 1rem;
      font-size: 0.82rem;
      color: var(--muted);
    }

    table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.84rem;
      margin: 0 0 1.25rem;
    }
    th, td {
      text-align: left;
      padding: 0.65rem 0.75rem;
      border-bottom: 1px solid var(--line);
      vertical-align: top;
    }
    th {
      color: var(--muted);
      font-weight: 500;
      font-size: 0.72rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }
    td code, p code, li code {
      font-family: var(--font-mono);
      font-size: 0.86em;
      color: var(--accent);
      background: var(--accent-dim);
      padding: 0.1em 0.35em;
      border-radius: 4px;
    }

    pre {
      margin: 0 0 1.25rem;
      padding: 1rem 1.1rem;
      overflow-x: auto;
      background: #10121a;
      border: 1px solid var(--line);
      border-radius: 12px;
      font-size: 0.8rem;
      line-height: 1.55;
      color: #c8d0ef;
    }
    pre .c { color: #565f89; }
    pre .k { color: var(--blue); }
    pre .s { color: var(--green); }
    pre .n { color: var(--amber); }

    .pill-row {
      display: flex;
      flex-wrap: wrap;
      gap: 0.45rem;
      margin: 0 0 1.25rem;
    }
    .pill {
      display: inline-flex;
      padding: 0.28rem 0.65rem;
      border-radius: 999px;
      background: var(--panel-2);
      border: 1px solid var(--line);
      font-size: 0.75rem;
      color: var(--fg);
    }

    .callout {
      border-left: 3px solid var(--accent);
      background: var(--accent-dim);
      padding: 0.9rem 1rem;
      border-radius: 0 10px 10px 0;
      margin: 0 0 1.4rem;
      color: var(--fg);
      font-size: 0.88rem;
    }
    .callout strong { color: var(--accent); }

    .toc {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      gap: 0.65rem;
      margin-bottom: 0.5rem;
    }
    .toc a {
      display: block;
      padding: 0.85rem 1rem;
      border-radius: 12px;
      border: 1px solid var(--line);
      background: rgba(26, 27, 38, 0.7);
      color: var(--fg);
      text-decoration: none;
      transition: border-color 0.2s ease, transform 0.2s ease;
    }
    .toc a:hover {
      border-color: var(--accent);
      transform: translateY(-2px);
      text-decoration: none;
    }
    .toc a span {
      display: block;
      color: var(--muted);
      font-size: 0.75rem;
      margin-top: 0.2rem;
    }

    footer {
      padding: 2.5rem 0 3.5rem;
      border-top: 1px solid var(--line);
      color: var(--muted);
      font-size: 0.82rem;
    }
    footer .inner {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      justify-content: space-between;
      align-items: center;
    }

    @keyframes rise {
      from { opacity: 0; transform: translateY(14px); }
      to { opacity: 1; transform: none; }
    }
    @keyframes glow {
      0%, 100% { box-shadow: 0 0 0 1px rgba(125, 207, 255, 0.25), 0 18px 50px rgba(0, 0, 0, 0.45); }
      50% { box-shadow: 0 0 0 1px rgba(125, 207, 255, 0.45), 0 18px 60px rgba(125, 207, 255, 0.12); }
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        animation: none !important;
        transition: none !important;
      }
    }

    .nav-links a.active { color: var(--accent); }
    .page-hero { padding: 2.75rem 0 1.25rem; }
    .page-hero h1 { max-width: 28ch; }
    .note { color: var(--muted); font-size: 0.88rem; }
    .kbd {
      display: inline-block;
      padding: 0.05em 0.4em;
      border: 1px solid var(--line);
      border-radius: 5px;
      background: var(--panel-2);
      font-size: 0.82em;
    }
    section h3 {
      font-family: var(--font-display);
      font-size: 1.15rem;
      letter-spacing: -0.02em;
      margin: 1.75rem 0 0.7rem;
      color: #e8ecff;
    }
    section ul, section ol {
      margin: 0 0 1.25rem;
      padding-left: 1.25rem;
    }
    section li { margin: 0.28rem 0; }
    .callout.warn {
      border-left-color: var(--amber);
      background: rgba(224, 175, 104, 0.12);
    }
    .callout.warn strong { color: var(--amber); }
    @media (max-width: 720px) {
      .topnav .inner { flex-direction: column; align-items: flex-start; }
      table { display: block; overflow-x: auto; }
    }