:root{
    --ink:#ffffff;
    --panel:#ffffff;
    --panel-2:#f2f2f0;
    --paper:#17242e;
    --brass:#c98a3b;
    --brass-bright:#a3661f;
    --teal:#2f6058;
    --rust:#8a3f2c;
    --ash:#5b6670;
    --line:rgba(23,36,46,0.12);
    --radius:3px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--ink);
    color:var(--paper);
    font-family:'IBM Plex Sans', sans-serif;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;}
  .wrap{max-width:1180px; margin:0 auto; padding:0 32px;}
  @media (max-width:640px){ .wrap{padding:0 20px;} }

  .display{
    font-family:'Big Shoulders Display', sans-serif;
    text-transform:uppercase;
    letter-spacing:0.01em;
    font-size:45px;
    line-height:0.94;
  }
  .mono{font-family:'IBM Plex Mono', monospace;}
  .eyebrow{
    font-family:'IBM Plex Mono', monospace;
    font-size:12px;
    letter-spacing:0.14em;
    text-transform:uppercase;
    color:var(--brass-bright);
    display:flex;
    align-items:center;
    gap:10px;
  }
  .eyebrow::before{
    content:"";
    width:16px; height:1px;
    background:var(--brass);
    display:inline-block;
  }

  /* ---------- nav ---------- */
  header{
    position:sticky; top:0; z-index:40;
    background:rgba(255,255,255,0.86);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
  }
  nav.wrap{
    height:72px;
    display:flex; align-items:center; justify-content:space-between;
  }
  .logo{
    display:flex; align-items:baseline; gap:8px;
    font-family:'Big Shoulders Display', sans-serif;
    font-weight:800;
    font-size:26px;
    letter-spacing:0.02em;
    text-decoration:none;
  }
  .logo .mark{color:var(--brass-bright);}
  .logo .tag{
    font-family:'IBM Plex Mono', monospace;
    font-size:10px;
    letter-spacing:0.08em;
    color:var(--ash);
    text-transform:none;
    font-weight:400;
    position:relative;
    top:-2px;
  }
  .nav-links{
    display:flex; align-items:center; gap:36px;
    list-style:none; margin:0; padding:0;
  }
  .nav-links a{
    text-decoration:none;
    font-size:14px;
    color:var(--ash);
    transition:color .15s ease;
  }
  .nav-links a:hover{color:var(--paper);}
  .nav-cta{
    display:flex; align-items:center; gap:20px;
  }
  .btn{
    display:inline-flex; align-items:center; gap:8px;
    padding:11px 20px;
    border-radius:var(--radius);
    font-size:14px; font-weight:600;
    text-decoration:none;
    border:1px solid transparent;
    cursor:pointer;
    font-family:'IBM Plex Sans', sans-serif;
    transition:transform .12s ease, background .15s ease, border-color .15s ease;
  }
  .btn:hover{transform:translateY(-1px);}
  .btn-primary{background:var(--brass); color:#1a1206;}
  .btn-primary:hover{background:var(--brass-bright);}
  .btn-ghost{border-color:var(--line); color:var(--paper);}
  .btn-ghost:hover{border-color:var(--ash);}
  .menu-toggle{display:none; background:none; border:0; color:var(--paper); font-size:22px;}

  @media (max-width:860px){
    .nav-links{display:none;}
    .menu-toggle{display:block;}
  }

  /* ---------- hero ---------- */
  .hero{
    padding:96px 0 60px;
    position:relative;
    overflow:hidden;
  }
  .hero::after{
    content:"";
    position:absolute; inset:0;
    background:
      radial-gradient(ellipse at 15% 0%, rgba(201,138,59,0.16), transparent 55%),
      radial-gradient(ellipse at 90% 20%, rgba(47,96,88,0.10), transparent 50%);
    pointer-events:none;
  }
  .hero-grid{
    display:grid;
    grid-template-columns:1.1fr 0.9fr;
    gap:56px;
    align-items:center;
    position:relative;
  }
  @media (max-width:960px){
    .hero-grid{grid-template-columns:1fr; gap:44px;}
  }
  h1.display{
    font-size:clamp(40px, 5.4vw, 68px);
    margin:20px 0 22px;
    color:var(--paper);
  }
  h1.display em{
    font-style:normal;
    color:var(--brass-bright);
  }
  .hero p.lede{
    font-size:18px;
    line-height:1.6;
    color:#3d4750;
    max-width:46ch;
    margin:0 0 32px;
  }
  .hero-actions{display:flex; gap:14px; flex-wrap:wrap; margin-bottom:28px;}
  .hero-note{
    font-size:13px; color:var(--ash);
    font-family:'IBM Plex Mono', monospace;
  }

  /* manifest board */
  .board{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:6px;
    overflow:hidden;
    box-shadow:0 24px 48px -28px rgba(23,36,46,0.30);
  }
  .board-head{
    display:flex; align-items:center; justify-content:space-between;
    padding:14px 18px;
    border-bottom:1px solid var(--line);
    background:var(--panel-2);
  }
  .board-head .dots{display:flex; gap:6px;}
  .board-head .dots span{width:9px; height:9px; border-radius:50%; background:#d9d9d9; display:inline-block;}
  .board-head .title{
    font-family:'IBM Plex Mono', monospace;
    font-size:12px; color:var(--ash); letter-spacing:0.04em;
  }
  /* board slideshow */
  .board-slideshow{
    position:relative;
    height:630px;
    overflow:hidden;
    background:var(--panel-2);
  }
  @media (max-width:860px){
    .board-slideshow{height:300px;}
  }
  @media (max-width:560px){
    .board-slideshow{height:220px;}
  }
  .board-slideshow .slide{
    position:absolute; inset:0;
    width:100%; height:100%;
    object-fit:cover;
    opacity:0;
    transition:opacity .6s ease;
  }
  .board-slideshow .slide.active{opacity:1;}
  .board-slideshow .slideshow-dots{
    position:absolute; bottom:10px; right:14px;
    display:flex; gap:6px; z-index:2;
  }
  .board-slideshow .s-dot{
    width:6px; height:6px; border-radius:50%;
    background:rgba(255,255,255,0.55);
    display:inline-block;
  }
  .board-slideshow .s-dot.active{background:var(--brass);}

  .board-body{padding:6px 0;}
  .manifest-row{
    display:grid;
    grid-template-columns:64px 1fr auto;
    gap:14px;
    align-items:center;
    padding:11px 18px;
    font-family:'IBM Plex Mono', monospace;
    font-size:13px;
    border-bottom:1px solid rgba(23,36,46,0.06);
    opacity:0;
    animation:rowIn .5s ease forwards;
  }
  .manifest-row .row-icon{border-radius:4px; display:block;}
  .manifest-row .kind{
    font-size:10px; font-weight:600; letter-spacing:0.06em;
    padding:3px 6px; border-radius:2px; text-align:center;
  }
  .manifest-row .kind.svc{background:rgba(47,96,88,0.14); color:var(--teal);}
  .manifest-row .kind.rte{background:rgba(201,138,59,0.16); color:var(--brass-bright);}
  .manifest-row .kind.plg{background:rgba(138,63,44,0.14); color:var(--rust);}
  .manifest-row .path{color:#1c2933; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
  .manifest-row .status{color:var(--ash); font-size:11px;}
  @keyframes rowIn{ to{ opacity:1; } }

  .board-foot{
    padding:14px 18px;
    border-top:1px solid var(--line);
    display:flex; justify-content:space-between; align-items:center;
    font-family:'IBM Plex Mono', monospace;
    font-size:12px; color:var(--ash);
  }
  .board-foot strong{color:var(--brass-bright);}

  /* ---------- compat strip ---------- */
  .compat{
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:26px 0;
  }
  .compat .wrap{
    display:flex; align-items:center; gap:28px; flex-wrap:wrap;
    justify-content:space-between;
  }
  .compat-label{
    font-family:'IBM Plex Mono', monospace;
    font-size:11px; letter-spacing:0.1em; text-transform:uppercase;
    color:var(--ash); white-space:nowrap;
  }
  .compat-tags{display:flex; gap:10px; flex-wrap:wrap;}
  .compat-tags span{
    font-family:'IBM Plex Mono', monospace;
    font-size:12px;
    padding:7px 12px;
    border:1px solid var(--line);
    border-radius:20px;
    color:#3d4750;
  }

  /* ---------- sections ---------- */
  section{padding:90px 0;}
  .section-head{max-width:640px; margin-bottom:56px;}
  .section-head h2{
    font-size:clamp(28px, 3.6vw, 42px);
    margin:16px 0 14px;
    color:var(--paper);
  }
  .section-head p{font-size:16px; color:#4a545c; line-height:1.6; margin:0;}

  /* feature grid */
  .grid-4{
    display:grid;
    grid-template-columns:repeat(4, 1fr);
    gap:1px;
    background:var(--line);
    border:1px solid var(--line);
    border-radius:6px;
    overflow:hidden;
  }
  @media (max-width:960px){ .grid-4{grid-template-columns:repeat(2,1fr);} }
  @media (max-width:560px){ .grid-4{grid-template-columns:1fr;} }
  .feature{
    background:var(--panel);
    padding:30px 26px;
  }
  .feature .num{
    font-family:'IBM Plex Mono', monospace;
    font-size:12px; color:var(--brass-bright); margin-bottom:18px; display:block;
  }
  .feature h3{
    font-size:17px; margin:0 0 10px; color:var(--paper);
    font-weight:600;
  }
  .feature p{font-size:14px; line-height:1.55; color:var(--ash); margin:0;}

  /* alternating detail rows */
  .detail{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:64px;
    align-items:center;
    padding:56px 0;
    border-top:1px solid var(--line);
  }
  .detail:last-child{border-bottom:1px solid var(--line);}
  .detail.reverse .detail-copy{order:2;}
  .detail.reverse .detail-visual{order:1;}
  @media (max-width:860px){
    .detail{grid-template-columns:1fr; gap:32px;}
    .detail.reverse .detail-copy, .detail.reverse .detail-visual{order:initial;}
  }
  .detail-copy h3{
    font-size:26px; margin:14px 0 14px; color:var(--paper);
  }
  .detail-copy p{font-size:15px; line-height:1.65; color:#4a545c; margin:0 0 18px;}
  .detail-copy ul{margin:0; padding:0; list-style:none;}
  .detail-copy li{
    font-size:14px; color:#333e46;
    padding:9px 0 9px 22px;
    border-top:1px solid var(--line);
    position:relative;
  }
  .detail-copy li:first-child{border-top:none;}
  .detail-copy li::before{
    content:"→";
    position:absolute; left:0; color:var(--brass);
  }

  .code-card{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:6px;
    padding:22px 22px 26px;
    font-family:'IBM Plex Mono', monospace;
    font-size:12.5px;
    line-height:1.7;
    color:#26313a;
    overflow:auto;
  }
  .code-card .k{color:var(--teal);}
  .code-card .s{color:var(--brass-bright);}
  .code-card .c{color:var(--ash);}

  .tree-card{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:6px;
    padding:8px 0;
    font-family:'IBM Plex Mono', monospace;
    font-size:13px;
  }
  .tree-card .t-row{padding:8px 20px; display:flex; align-items:center; gap:10px; color:#26313a;}
  .tree-card .t-row.lvl1{padding-left:20px; color:var(--paper); font-weight:600;}
  .tree-card .t-row.lvl2{padding-left:40px; color:var(--teal);}
  .tree-card .t-row.lvl3{padding-left:58px; color:var(--ash); font-size:12px;}

  /* CTA band */
  .cta-band{
    background:var(--panel-2);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    text-align:center;
    padding:88px 0;
  }
  .cta-band h2{
    font-size:clamp(30px, 4vw, 46px);
    margin:16px 0 18px;
  }
  .cta-band p{color:#4a545c; font-size:16px; margin:0 0 34px;}
  .cta-actions{display:flex; gap:14px; justify-content:center; flex-wrap:wrap;}

  /* footer */
  footer{padding:56px 0 40px;}
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr repeat(3, 1fr);
    gap:40px;
    padding-bottom:40px;
    border-bottom:1px solid var(--line);
  }
  @media (max-width:760px){ .footer-grid{grid-template-columns:1fr 1fr; row-gap:32px;} }
  .footer-grid h4{
    font-size:12px; letter-spacing:0.08em; text-transform:uppercase;
    color:var(--ash); margin:0 0 16px; font-weight:600;
  }
  .footer-grid ul{list-style:none; margin:0; padding:0;}
  .footer-grid li{margin-bottom:10px;}
  .footer-grid a{text-decoration:none; color:#333e46; font-size:14px;}
  .footer-grid a:hover{color:var(--brass-bright);}
  .footer-bottom{
    display:flex; justify-content:space-between; align-items:center;
    padding-top:26px; font-size:13px; color:var(--ash);
    flex-wrap:wrap; gap:12px;
  }

  @media (prefers-reduced-motion: reduce){
    .manifest-row{animation:none; opacity:1;}
    html{scroll-behavior:auto;}
  }

  /* ---------- inner-page header banner ---------- */
  .page-header{
    padding:76px 0 54px;
    border-bottom:1px solid var(--line);
    position:relative;
    overflow:hidden;
  }
  .page-header::after{
    content:"";
    position:absolute; inset:0;
    background:radial-gradient(ellipse at 12% 0%, rgba(201,138,59,0.12), transparent 55%);
    pointer-events:none;
  }
  .page-header h1.display{
    font-size:clamp(34px, 5vw, 54px);
    margin:16px 0 14px;
    text-transform:none;
  }
  .page-header p{
    font-size:16px; color:#4a545c; max-width:56ch; line-height:1.6; margin:0;
  }

  /* ---------- changelog table ---------- */
  .changelog-entry{
    padding:44px 0;
    border-top:1px solid var(--line);
  }
  .changelog-entry:first-of-type{border-top:none;}
  .changelog-meta{
    display:flex; align-items:baseline; gap:16px; flex-wrap:wrap;
    margin-bottom:20px;
  }
  .changelog-version{
    font-family:'Big Shoulders Display', sans-serif;
    font-weight:800;
    font-size:26px;
    color:var(--paper);
  }
  .changelog-date{
    font-family:'IBM Plex Mono', monospace;
    font-size:12px; color:var(--ash); letter-spacing:0.04em;
  }
  .changelog-tag{
    font-family:'IBM Plex Mono', monospace;
    font-size:11px; letter-spacing:0.06em; text-transform:uppercase;
    padding:3px 9px; border-radius:20px;
    border:1px solid var(--line);
    color:var(--brass-bright);
  }
  table.changelog-table{
    width:100%;
    border-collapse:collapse;
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:6px;
    overflow:hidden;
    font-size:14px;
  }
  table.changelog-table th{
    text-align:left;
    font-family:'IBM Plex Mono', monospace;
    font-size:11px; letter-spacing:0.08em; text-transform:uppercase;
    color:var(--ash);
    background:var(--panel-2);
    padding:12px 18px;
    border-bottom:1px solid var(--line);
    font-weight:600;
  }
  table.changelog-table td{
    padding:14px 18px;
    border-bottom:1px solid var(--line);
    color:#2a333c;
    vertical-align:top;
    line-height:1.55;
  }
  table.changelog-table tr:last-child td{border-bottom:none;}
  table.changelog-table td.type-cell{white-space:nowrap; width:1%;}
  .chip{
    display:inline-block;
    font-family:'IBM Plex Mono', monospace;
    font-size:10px; font-weight:600; letter-spacing:0.05em;
    padding:3px 8px; border-radius:2px; text-transform:uppercase;
  }
  .chip.added{background:rgba(47,96,88,0.14); color:var(--teal);}
  .chip.changed{background:rgba(201,138,59,0.16); color:var(--brass-bright);}
  .chip.fixed{background:rgba(138,63,44,0.14); color:var(--rust);}

  /* ---------- about page ---------- */
  .stat-row{
    display:grid; grid-template-columns:repeat(3,1fr); gap:1px;
    background:var(--line); border:1px solid var(--line); border-radius:6px;
    overflow:hidden; margin:12px 0 0;
  }
  @media (max-width:640px){ .stat-row{grid-template-columns:1fr;} }
  .stat-cell{background:var(--panel); padding:26px 24px;}
  .stat-cell .stat-num{
    font-family:'Big Shoulders Display', sans-serif; font-weight:800;
    font-size:34px; color:var(--brass-bright); display:block; margin-bottom:6px;
  }
  .stat-cell .stat-label{font-size:13px; color:var(--ash);}

  .value-list{display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:6px; overflow:hidden;}
  @media (max-width:760px){ .value-list{grid-template-columns:1fr;} }
  .value-item{background:var(--panel); padding:26px;}
  .value-item h3{margin:0 0 8px; font-size:16px; color:var(--paper);}
  .value-item p{margin:0; font-size:14px; color:var(--ash); line-height:1.55;}

  /* ---------- contact page ---------- */
  .contact-grid{
    display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:start;
  }
  @media (max-width:860px){ .contact-grid{grid-template-columns:1fr; gap:36px;} }
  .contact-card{
    background:var(--panel); border:1px solid var(--line); border-radius:6px; padding:24px;
    display:flex; gap:16px; align-items:flex-start; margin-bottom:14px;
  }
  .contact-card .icon{
    width:34px; height:34px; border-radius:50%;
    background:rgba(201,138,59,0.14); color:var(--brass-bright);
    display:flex; align-items:center; justify-content:center;
    font-family:'IBM Plex Mono', monospace; font-size:13px; flex-shrink:0;
  }
  .contact-card h3{margin:0 0 4px; font-size:15px; color:var(--paper);}
  .contact-card p{margin:0; font-size:13px; color:var(--ash); line-height:1.5;}
  .contact-card a{color:var(--brass-bright); text-decoration:none; font-size:13px;}

  .form-field{margin-bottom:18px;}
  .form-field label{
    display:block; font-family:'IBM Plex Mono', monospace;
    font-size:11px; letter-spacing:0.06em; text-transform:uppercase;
    color:var(--ash); margin-bottom:8px;
  }
  .form-field input, .form-field textarea{
    width:100%;
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:4px;
    padding:12px 14px;
    font-family:'IBM Plex Sans', sans-serif;
    font-size:14px;
    color:var(--paper);
  }
  .form-field input:focus, .form-field textarea:focus{
    outline:none; border-color:var(--brass);
  }
  .form-field textarea{resize:vertical; min-height:130px;}
  .form-note{font-size:12px; color:var(--ash); margin-top:14px;}

  /* ---------- team page ---------- */
  .team-grid{
    display:grid; grid-template-columns:repeat(3, 1fr); gap:1px;
    background:var(--line); border:1px solid var(--line); border-radius:6px; overflow:hidden;
  }
  @media (max-width:860px){ .team-grid{grid-template-columns:repeat(2,1fr);} }
  @media (max-width:560px){ .team-grid{grid-template-columns:1fr;} }
  .team-card{background:var(--panel); padding:28px 24px;}
  .avatar{
    width:52px; height:52px; border-radius:50%;
    display:flex; align-items:center; justify-content:center;
    font-family:'Big Shoulders Display', sans-serif; font-weight:800; font-size:17px;
    color:#fff; margin-bottom:16px;
  }
  .team-card h3{margin:0 0 3px; font-size:16px; color:var(--paper);}
  .team-card .role{
    font-family:'IBM Plex Mono', monospace; font-size:11px; letter-spacing:0.04em;
    color:var(--brass-bright); display:block; margin-bottom:12px;
  }
  .team-card p{margin:0 0 14px; font-size:13px; color:var(--ash); line-height:1.55;}
  .team-card .social{display:flex; gap:12px;}
  .team-card .social a{
    font-family:'IBM Plex Mono', monospace; font-size:11px;
    color:var(--ash); text-decoration:none; border-bottom:1px solid var(--line);
  }
  .team-card .social a:hover{color:var(--brass-bright); border-color:var(--brass-bright);}

  .open-role{
    display:flex; align-items:center; justify-content:space-between; gap:16px;
    padding:18px 22px;
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:6px;
    margin-bottom:10px;
    flex-wrap:wrap;
  }
  .open-role .role-name{font-size:14px; color:var(--paper); font-weight:600;}
  .open-role .role-meta{font-family:'IBM Plex Mono', monospace; font-size:12px; color:var(--ash);}

  /* ---------- download page ---------- */
  .platform-grid{
    display:grid; grid-template-columns:repeat(3, 1fr); gap:1px;
    background:var(--line); border:1px solid var(--line); border-radius:6px; overflow:hidden;
  }
  @media (max-width:860px){ .platform-grid{grid-template-columns:1fr;} }
  .platform-card{
    background:var(--panel);
    padding:30px 26px;
    display:flex; flex-direction:column;
  }
  .platform-card .os-icon{
    width:42px; height:42px; border-radius:8px;
    background:rgba(201,138,59,0.12);
    display:flex; align-items:center; justify-content:center;
    font-family:'IBM Plex Mono', monospace; font-weight:600; font-size:13px;
    color:var(--brass-bright);
    margin-bottom:18px;
  }
  .platform-card h3{margin:0 0 4px; font-size:18px; color:var(--paper);}
  .platform-card .arch{font-family:'IBM Plex Mono', monospace; font-size:12px; color:var(--ash); margin-bottom:18px;}
  .platform-card .btn{width:100%; justify-content:center; margin-bottom:14px;}
  .platform-meta{
    font-family:'IBM Plex Mono', monospace; font-size:11px; color:var(--ash);
    display:flex; flex-direction:column; gap:6px; margin-top:auto;
    padding-top:14px; border-top:1px solid var(--line);
  }
  .platform-meta .sha{word-break:break-all;}
  .platform-card .other-arch{font-size:12px; margin-top:2px;}
  .platform-card .other-arch a{color:var(--ash); text-decoration:none; border-bottom:1px solid var(--line);}
  .platform-card .other-arch a:hover{color:var(--brass-bright); border-color:var(--brass-bright);}

  .req-table{width:100%; border-collapse:collapse; font-size:14px;}
  .req-table td{padding:12px 0; border-top:1px solid var(--line);}
  .req-table tr:first-child td{border-top:none;}
  .req-table td:first-child{
    font-family:'IBM Plex Mono', monospace; font-size:12px; color:var(--ash);
    width:160px; white-space:nowrap; padding-right:20px;
  }
  .req-table td:last-child{color:#2a333c;}

  .install-step{
    display:flex; gap:16px; align-items:flex-start; margin-bottom:20px;
  }
  .install-step .step-num{
    font-family:'Big Shoulders Display', sans-serif; font-weight:800; font-size:20px;
    color:var(--brass-bright); width:30px; flex-shrink:0;
  }
  .install-step p{margin:0 0 8px; font-size:14px; color:#2a333c; line-height:1.55;}