:root{
      --bg:#0b1120;
      --bg-gradient: linear-gradient(135deg, #06110b 0%, #111827 50%, #14090b 100%);
      --panel:#1e293b;
      --panel-alt:#162032;
      --border:rgba(148,163,184,.15);
      --border-strong:rgba(148,163,184,.25);
      --accent:#ce2b37;
      --accent-dim:rgba(206, 43, 55, .16);
      --accent-glow:rgba(206, 43, 55, .38);
      --tech-blue:#009246;
      --tech-blue-dim:rgba(0,146,70,.16);
      --ok:#009246;
      --ok-dim:rgba(0,146,70,.14);
      --warn:#f3f4f6;
      --warn-dim:rgba(243,244,246,.14);
      --purple:#f3f4f6;
      --purple-dim:rgba(243,244,246,.14);
      --text:#f8fafc;
      --muted:#94a3b8;
      --mono: 'JetBrains Mono', monospace;
      --sans: 'Inter', sans-serif;
      --radius: 6px;
    }
    
    * { box-sizing:border-box; margin:0; padding:0; }
    html { scroll-behavior: smooth; }
    body {
      margin:0; font-family:var(--sans);
      background: var(--bg); color:var(--text); line-height:1.6;
      min-height: 100vh;
    }
    .skip-link {
      position: absolute;
      left: -9999px;
      top: 8px;
      z-index: 200;
      background: var(--panel);
      color: #fff;
      border: 1px solid var(--border-strong);
      padding: 8px 12px;
      border-radius: 4px;
      font-family: var(--mono);
      font-size: .75rem;
      text-decoration: none;
    }
    .skip-link:focus-visible { left: 16px; }
    body::before {
      content:''; position:fixed; top:0; left:0; width:100%; height:100%; pointer-events:none; z-index:0;
      background:
        radial-gradient(ellipse 800px 600px at 15% 5%, rgba(0,146,70,.10), transparent),
        radial-gradient(ellipse 600px 500px at 85% 40%, rgba(206,43,55,.10), transparent),
        radial-gradient(ellipse 700px 400px at 50% 90%, rgba(243,244,246,.08), transparent);
    }
    
    /* NAV */
    .topnav {
      position:sticky; top:0; z-index:100;
      background: rgba(11,17,32,.92); backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      padding: 0 24px;
    }
    .topnav-inner {
      max-width:1200px; margin:0 auto; display:flex; align-items:center; justify-content:space-between; height:56px;
    }
    .topnav .brand { font-family:var(--mono); color:var(--accent); font-weight:700; font-size:.85rem; letter-spacing:2px; text-transform:uppercase; text-decoration:none; }
    .topnav-links { display:flex; gap:6px; }
    .topnav-links a {
      font-family:var(--mono); font-size:.7rem; color:var(--muted); text-decoration:none; padding:6px 12px; border-radius:3px;
      transition: all .2s;
    }
    .topnav-links a:hover { color:#fff; background:var(--accent-dim); }
    .topnav .brand:focus-visible,
    .topnav-links a:focus-visible {
      outline: 2px solid var(--tech-blue);
      outline-offset: 2px;
    }
    
    .container { max-width: 1200px; margin: 0 auto; padding: 50px 24px; position:relative; z-index:1; }
    
    /* HERO */
    .hero {
      text-align:center; padding: 80px 0 60px; position:relative;
    }
    .hero::after {
      content:''; position:absolute; bottom:0; left:10%; right:10%; height:1px;
      background: linear-gradient(to right, transparent, var(--border-strong), transparent);
    }
    .hero .tag-row { margin-bottom:20px; }
    .hero h1 {
      font-size: 3.5rem; font-weight: 900; letter-spacing: -1px; line-height:1.05; margin-bottom: 20px;
      background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
      background-clip: text; -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    }
    .hero .lead { font-size: 1.15rem; color: var(--muted); max-width: 700px; margin: 0 auto 30px; }
    .doc-meta-bar {
      display:inline-flex; gap:24px; font-family:var(--mono); font-size:.72rem; color:var(--muted);
      background:var(--panel); border:1px solid var(--border); border-radius:4px; padding:10px 24px;
    }
    .doc-meta-bar span { white-space:nowrap; }
    .doc-meta-bar strong { color:var(--text); }

    /* LAYOUT */
    .content-grid { display: grid; grid-template-columns: 1fr 340px; gap: 40px; margin-top:50px; }
    @media (max-width: 960px) { .content-grid { grid-template-columns: 1fr; } }

    /* SECTIONS */
    .specs-block { margin-bottom: 60px; scroll-margin-top: 70px; }
    h2 { 
      font-family: var(--mono); font-size: 1.15rem; color: var(--tech-blue); 
      border-left: 3px solid var(--tech-blue); padding-left: 15px; margin-bottom: 25px;
      text-transform: uppercase; letter-spacing: 1px;
    }
    h2.accent-red { color: var(--accent); border-left-color: var(--accent); }
    h2.accent-green { color: var(--ok); border-left-color: var(--ok); }
    h2.accent-purple { color: var(--purple); border-left-color: var(--purple); }
    h2.accent-warn { color: var(--warn); border-left-color: var(--warn); }
    
    /* DATA ROWS */
    .data-row {
      display: flex; justify-content: space-between; align-items: baseline;
      padding: 11px 0; border-bottom: 1px solid var(--border);
    }
    .data-row:last-child { border-bottom: none; }
    .data-label { font-size: 0.9rem; color: var(--muted); }
    .data-value { font-family: var(--mono); font-weight: 700; color: #fff; font-size: .95rem; text-align:right; }
    .data-sub { font-size: 0.75rem; color: var(--muted); margin-left: 6px; font-weight: 400; }

    /* TECH CARDS */
    .tech-card {
      background: rgba(30, 41, 59, 0.45); border: 1px solid var(--border);
      padding: 24px; border-radius: var(--radius); margin-bottom: 16px;
      transition: border-color .3s;
    }
    .tech-card:hover { border-color: var(--border-strong); }
    .tech-card h3 { font-size: .95rem; margin-bottom: 14px; color: #fff; font-weight: 600; }
    .tech-card p { font-size:.88rem; color:var(--muted); margin-bottom:12px; }
    .tech-card.glow-red { border-color: rgba(239,68,68,.25); box-shadow: inset 0 1px 0 rgba(239,68,68,.1); }
    .tech-card.glow-blue { border-color: rgba(14,165,233,.25); box-shadow: inset 0 1px 0 rgba(14,165,233,.1); }
    .tech-card.glow-green { border-color: rgba(34,197,94,.25); box-shadow: inset 0 1px 0 rgba(34,197,94,.1); }
    .tech-card.glow-purple { border-color: rgba(168,85,247,.25); box-shadow: inset 0 1px 0 rgba(168,85,247,.1); }
    
    /* TAGS */
    .tag { 
      display: inline-block; padding: 3px 10px; border-radius: 2px; 
      font-family: var(--mono); font-size: 0.65rem; font-weight: 700; text-transform: uppercase;
      margin-right: 6px; letter-spacing:.5px;
    }
    .tag-red { background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(239,68,68,.3); }
    .tag-blue { background: var(--tech-blue-dim); color: var(--tech-blue); border: 1px solid rgba(14,165,233,.3); }
    .tag-green { background: var(--ok-dim); color: var(--ok); border: 1px solid rgba(34,197,94,.3); }
    .tag-warn { background: var(--warn-dim); color: var(--warn); border: 1px solid rgba(245,158,11,.3); }
    .tag-purple { background: var(--purple-dim); color: var(--purple); border: 1px solid rgba(168,85,247,.3); }

    .highlight { color: var(--accent); }
    .highlight-blue { color: var(--tech-blue); }
    
    /* SIDEBAR CARDS */
    .sidebar-card {
      background: rgba(30,41,59,.45); border:1px solid var(--border); border-radius:var(--radius);
      padding:20px; margin-bottom:16px;
    }
    .sidebar-card h3 { font-family:var(--mono); font-size:.8rem; margin-bottom:14px; text-transform:uppercase; letter-spacing:1px; }
    .sidebar-card ul { list-style:none; font-size:.82rem; color:var(--muted); }
    .sidebar-card ul li { margin-bottom:10px; line-height:1.5; }
    .sidebar-card .data-row { padding:7px 0; }
    .sidebar-card .data-label { font-size:.82rem; }
    .sidebar-card .data-value { font-size:.85rem; }

    /* STAT STRIP */
    .stat-strip { display:grid; grid-template-columns:repeat(auto-fit,minmax(120px,1fr)); gap:12px; margin:20px 0; }
    .stat-strip.top-offset { margin-top:40px; }
    .stat-item { background:var(--panel-alt); border:1px solid var(--border); border-radius:var(--radius); padding:16px; text-align:center; }
    .stat-num { font-family:var(--mono); font-size:1.5rem; font-weight:800; color:#fff; }
    .stat-lbl { font-size:.7rem; color:var(--muted); margin-top:4px; text-transform:uppercase; letter-spacing:.5px; }

    /* FORMULA */
    .formula-box {
      background: rgba(14,165,233,.06); border:1px solid rgba(14,165,233,.2); border-radius:var(--radius);
      padding:16px 20px; margin:14px 0; font-family:var(--mono); font-size:.85rem; color:var(--tech-blue);
      text-align:center; letter-spacing:.5px;
    }

    /* WARN BOX */
    .warn-box {
      background: rgba(245,158,11,.06); border:1px solid rgba(245,158,11,.25); border-radius:var(--radius);
      padding:16px 20px; margin:14px 0; font-size:.85rem; color:#fbbf24;
    }
    .warn-box strong { color:#f59e0b; }

    /* PHASE LIST */
    .phase-list { counter-reset: phase; list-style:none; padding:0; }
    .phase-list li {
      counter-increment: phase; position:relative; padding:14px 14px 14px 52px; margin-bottom:8px;
      background: rgba(255,255,255,.02); border:1px solid var(--border); border-radius:var(--radius);
      font-size:.88rem; color:var(--muted);
    }
    .phase-list li::before {
      content: counter(phase); position:absolute; left:14px; top:14px;
      width:26px; height:26px; border-radius:50%; background:var(--accent-dim); color:var(--accent);
      font-family:var(--mono); font-size:.75rem; font-weight:700;
      display:flex; align-items:center; justify-content:center;
    }
    .phase-list li strong { color:#fff; }

    /* SEPARATOR */
    .sep { height:1px; background:linear-gradient(to right, transparent, var(--border-strong), transparent); margin:60px 0; }

    /* DATA TABLES */
    .spec-table { width:100%; border-collapse:collapse; margin:12px 0; font-size:.82rem; }
    .spec-table thead th {
      background: rgba(14,165,233,.08); color:var(--tech-blue); font-family:var(--mono);
      font-size:.72rem; font-weight:600; text-transform:uppercase; letter-spacing:.5px;
      padding:10px 14px; text-align:left; border-bottom:2px solid rgba(14,165,233,.25);
    }
    .spec-table tbody td {
      padding:10px 14px; border-bottom:1px solid var(--border); color:var(--muted);
      vertical-align:top;
    }
    .spec-table tbody tr:hover td { background:rgba(255,255,255,.02); color:var(--text); }
    .spec-table .val { font-family:var(--mono); color:#fff; font-weight:600; }
    .spec-table .best { color:var(--ok); font-weight:700; }
    .spec-table .mid { color:var(--warn); }
    .spec-table .low { color:var(--accent); }
    .chart-wrap {
      background: rgba(30,41,59,.45); border:1px solid var(--border); border-radius:var(--radius);
      padding:20px; margin-bottom:16px;
    }
    .chart-wrap h3 { font-size:.95rem; margin-bottom:14px; color:#fff; font-weight:600; }
    .chart-container { position:relative; width:100%; }
    .chart-h-280 { height:280px; }
    .chart-h-300 { height:300px; }
    .chart-h-320 { height:320px; }
    .chart-h-350 { height:350px; }
    .chart-summary { font-size:.78rem; color:var(--muted); margin-top:10px; }
    .chart-row { display:grid; grid-template-columns:1fr 1fr; gap:16px; }

    .tag-mini {
      display:inline-block; padding:2px 7px; font-family:var(--mono); font-size:.65rem;
      background:rgba(168,85,247,.12); color:var(--purple); border:1px solid rgba(168,85,247,.25);
      border-radius:2px; margin-left:6px; vertical-align:middle;
    }
    .formula-inline {
      margin:12px 0; font-family:var(--mono); font-size:.85rem; color:var(--tech-blue); line-height:1.9;
    }
    .micro-text {
      font-family:var(--mono); font-size:.7rem; color:var(--muted); opacity:.5;
    }

    .sidebar-card.border-accent { border-top: 3px solid var(--accent); }
    .sidebar-card.border-purple { border-top: 3px solid var(--purple); }
    .sidebar-card.soft-accent { background: rgba(239,68,68,.04); }
    .sidebar-title-accent { color: var(--accent); }
    .sidebar-title-purple { color: var(--purple); }
    .sidebar-list-small { font-size:.78rem; line-height:1.6; }
    .sidebar-list-tiny { font-size:.78rem; }

    .site-footer {
      margin-top:42px; border-top:1px solid var(--border); padding-top:20px;
      text-align:center; font-family:var(--mono); font-size:.7rem; color:var(--muted); line-height:1.8;
    }

    .sr-only {
      position:absolute;
      width:1px;
      height:1px;
      padding:0;
      margin:-1px;
      overflow:hidden;
      clip:rect(0,0,0,0);
      white-space:nowrap;
      border:0;
    }

    @media (max-width: 768px) {
      .topnav { padding: 0 12px; }
      .topnav-inner { height: auto; min-height:56px; padding:8px 0; flex-direction:column; align-items:flex-start; gap:8px; }
      .topnav-links {
        width:100%;
        overflow-x:auto;
      }
      .hero { padding: 56px 0 44px; }
      .hero h1 { font-size: 2.15rem; }
      .doc-meta-bar { flex-direction:column; gap:8px; align-items:flex-start; }
      .chart-row { grid-template-columns:1fr; }
    }