:root {
      --red: #d71920;
      --red-dark: #a4121a;
      --red-soft: #fdecec;
      --ink: #1a1a1a;
      --ink-soft: #444444;
      --grey: #6b7280;
      --line: #e5e5e5;
      --paper: #ffffff;
      --wash: #f6f6f6;
      --blue: #1d4ed8;
    }
    * { box-sizing: border-box; }
    body {
      font-family: Georgia, 'Times New Roman', serif;
      margin: 0;
      padding: 0;
      background: var(--wash);
      color: var(--ink);
      line-height: 1.75;
    }

    /* Hero */
    .hero {
      background: var(--paper);
      border-bottom: 4px solid var(--red);
      padding: 4rem 8% 3rem;
    }
    .kicker {
      font-family: system-ui, sans-serif;
      text-transform: uppercase;
      letter-spacing: 0.22em;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--red);
      margin-bottom: 1rem;
    }
    .hero h1 {
      font-size: clamp(2rem, 5vw, 3.4rem);
      line-height: 1.1;
      margin: 0 0 1.2rem;
      color: var(--ink);
      letter-spacing: -0.01em;
    }
    .hero h1 em { color: var(--red); font-style: normal; }
    .tagline {
      font-size: 1.25rem;
      color: var(--ink-soft);
      max-width: 62ch;
      margin: 0 0 2rem;
    }
    .hero-stats {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 1px;
      background: var(--line);
      border: 1px solid var(--line);
      max-width: 900px;
    }
    .hero-stats > div {
      background: var(--paper);
      padding: 1.2rem 1.4rem;
    }
    .hero-stats b {
      display: block;
      font-size: 1.9rem;
      color: var(--red);
      line-height: 1.1;
    }
    .hero-stats span {
      font-family: system-ui, sans-serif;
      font-size: 0.78rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--grey);
    }

    .container {
      max-width: 920px;
      margin: 0 auto;
      padding: 2.5rem 5% 3rem;
    }

    h2 {
      font-size: 1.8rem;
      margin: 0 0 1rem;
      color: var(--ink);
      border-bottom: 2px solid var(--red);
      padding-bottom: 0.4rem;
      display: inline-block;
    }
    h3 {
      font-family: system-ui, sans-serif;
      font-size: 1.05rem;
      margin: 1.75rem 0 0.5rem;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      color: var(--red-dark);
    }
    h4 { margin: 0 0 0.4rem; font-family: system-ui, sans-serif; }
    p { margin: 0.75rem 0 1.1rem; }

    .highlight { color: var(--red-dark); font-weight: 700; }
    .accent { color: var(--blue); font-weight: 600; }

    .card {
      background: var(--paper);
      border: 1px solid var(--line);
      border-top: 4px solid var(--red);
      border-radius: 4px;
      padding: 2rem 2.25rem;
      margin-bottom: 2.25rem;
      box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    }

    .lede::first-letter {
      float: left;
      font-size: 3.4rem;
      line-height: 0.85;
      padding: 0.2rem 0.6rem 0 0;
      color: var(--red);
      font-weight: 700;
    }

    blockquote {
      margin: 1.5rem 0;
      padding: 0.2rem 0 0.2rem 1.5rem;
      border-left: 4px solid var(--red);
      font-style: italic;
      color: var(--ink-soft);
      font-size: 1.1rem;
    }

    .grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 1.25rem;
      margin-top: 1.25rem;
    }
    .grid > div {
      border: 1px solid var(--line);
      border-radius: 4px;
      padding: 1.1rem 1.25rem;
      background: var(--wash);
    }

    ul { margin: 0.5rem 0 1.1rem 1.2rem; padding: 0; }
    li { margin-bottom: 0.45rem; }

    .pill {
      display: inline-block;
      font-family: system-ui, sans-serif;
      padding: 0.2rem 0.7rem;
      border-radius: 999px;
      background: var(--red);
      color: #fff;
      font-size: 0.72rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      margin-bottom: 0.5rem;
    }

    .table-wrapper { overflow-x: auto; margin-top: 1rem; }
    table {
      width: 100%;
      border-collapse: collapse;
      margin-bottom: 1rem;
      font-family: system-ui, sans-serif;
      font-size: 0.9rem;
    }
    th, td {
      border: 1px solid var(--line);
      padding: 0.6rem 0.7rem;
      text-align: left;
      vertical-align: top;
    }
    th {
      background: var(--ink);
      color: #fff;
      font-weight: 600;
    }
    tr:nth-child(even) td { background: var(--wash); }

    .note {
      margin-top: 1.5rem;
      padding: 1rem 1.25rem;
      border-radius: 4px;
      font-family: system-ui, sans-serif;
      font-size: 0.95rem;
    }
    .note-blue { background: #eff6ff; border-left: 4px solid var(--blue); }
    .note-blue h4 { color: var(--blue); }
    .note-red { background: var(--red-soft); border-left: 4px solid var(--red); }
    .note-red h4 { color: var(--red-dark); }
    .note p:last-child { margin-bottom: 0; }

    .cta {
      margin-top: 2.5rem;
      padding: 2.25rem 2.5rem;
      border-radius: 4px;
      background: linear-gradient(180deg, var(--red-soft), #fff);
      border: 1px solid var(--red);
    }
    .cta strong { color: var(--red-dark); }
    .cta h2 { border-bottom-color: var(--red); }

    footer {
      padding: 1.75rem 8%;
      font-family: system-ui, sans-serif;
      font-size: 0.85rem;
      color: var(--grey);
      border-top: 1px solid var(--line);
      background: var(--paper);
    }

    @media (max-width: 640px) {
      .card { padding: 1.4rem 1.2rem; }
      .hero { padding: 2.5rem 6% 2rem; }
    }

    /* Charts */
    .chart {
      margin: 1.5rem 0;
      padding: 1.25rem;
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: 4px;
      font-family: system-ui, sans-serif;
    }
    .chart svg { width: 100%; height: auto; display: block; }
    .chart-caption {
      font-size: 0.8rem;
      color: var(--grey);
      margin-top: 0.5rem;
      text-align: center;
    }

:root {
            --primary: #1e3a8a; /* Deep technological blue */
            --secondary: #d97706; /* Muted amber */
            --accent: #059669; /* Academic green */
            --bg-light: #f8fafc;
            --text-dark: #1e293b;
            --text-muted: #475569;
            --border: #e2e8f0;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            background-color: var(--bg-light);
        }

        /* Header */
        header {
            background: linear-gradient(135deg, #1e3a8a 0%, #0f172a 100%);
            color: white;
            padding: 3.5rem 2rem;
            text-align: center;
            border-bottom: 4px solid var(--secondary);
        }

        header h1 {
            font-size: 2.2rem;
            margin-bottom: 1rem;
            color: #fef3c7;
            font-weight: 700;
            letter-spacing: -0.02em;
        }

        header p.subtitle {
            font-size: 1.15rem;
            max-width: 850px;
            margin: 0 auto 2rem auto;
            color: #cbd5e1;
        }

        .cta-button {
            display: inline-block;
            background-color: var(--secondary);
            color: #fff;
            padding: 0.75rem 1.75rem;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            transition: background 0.2s, transform 0.2s;
        }

        .cta-button:hover {
            background-color: #b45309;
            transform: translateY(-1px);
        }

        /* Main container */
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 2rem;
        }

        /* Section cards */
        .section-card {
            background: white;
            border-radius: 8px;
            padding: 2.25rem;
            margin-bottom: 2rem;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
            border: 1px solid var(--border);
            border-top: 4px solid var(--primary);
        }

        .section-card.highlight {
            border-top: 4px solid var(--secondary);
            background: #fffbeb;
        }

        .section-card.alert-card {
            border-top: 4px solid #dc2626;
            background: #fef2f2;
        }

        h2 {
            color: var(--primary);
            font-size: 1.5rem;
            margin-bottom: 1.25rem;
            border-bottom: 2px solid var(--border);
            padding-bottom: 0.5rem;
            font-weight: 700;
        }

        h3 {
            color: #334155;
            margin: 1.25rem 0 0.5rem 0;
            font-size: 1.15rem;
            font-weight: 600;
        }

        p {
            margin-bottom: 1rem;
        }

        ul {
            list-style-type: none;
            margin-bottom: 1rem;
        }

        ul li {
            position: relative;
            padding-left: 1.5rem;
            margin-bottom: 0.5rem;
        }

        ul li::before {
            content: "•";
            position: absolute;
            left: 0.25rem;
            color: var(--primary);
            font-weight: bold;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.75rem;
        }

        /* Tables */
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            background: white;
            border: 1px solid var(--border);
            font-size: 0.92rem;
        }

        th, td {
            padding: 0.75rem 1rem;
            text-align: left;
            border-bottom: 1px solid var(--border);
        }

        th {
            background-color: #0f172a;
            color: white;
            font-weight: 600;
        }

        tr:nth-child(even) { background-color: #f8fafc; }

        /* Citation links */
        .cite {
            color: var(--primary);
            font-size: 0.8em;
            vertical-align: super;
            font-weight: 700;
            text-decoration: none;
            padding: 0 1px;
        }

        .cite:hover {
            text-decoration: underline;
        }

        /* Status Callout Boxes */
        .status-box {
            background-color: #f0f9ff;
            border-left: 4px solid #0284c7;
            padding: 1rem 1.25rem;
            border-radius: 0 6px 6px 0;
            margin: 1.25rem 0;
        }

        .status-box.warning {
            background-color: #fff7ed;
            border-left-color: #ea580c;
        }

        .status-box.alert {
            background-color: #fef2f2;
            border-left-color: #dc2626;
        }

        .status-box h4 {
            font-weight: 700;
            margin-bottom: 0.25rem;
            color: var(--text-dark);
            font-size: 1rem;
        }

        /* Badges */
        .badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }

        .badge-untested {
            background-color: #fee2e2;
            color: #991b1b;
            border: 1px solid #fca5a5;
        }

        .badge-lab {
            background-color: #fef3c7;
            color: #92400e;
            border: 1px solid #fcd34d;
        }

        .badge-mature {
            background-color: #d1fae5;
            color: #065f46;
            border: 1px solid #6ee7b7;
        }

        /* Production share bars */
        .prod-bar {
            display: inline-block;
            height: 8px;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--secondary), var(--primary));
            vertical-align: middle;
            margin-right: 0.5rem;
        }

        /* Architecture diagram */
        .architecture {
            display: flex;
            flex-direction: column;
            gap: 4px;
            margin: 1.5rem auto;
            max-width: 380px;
            text-align: center;
            font-weight: 600;
            font-size: 0.95rem;
        }

        .arch-layer {
            padding: 0.85rem;
            border-radius: 4px;
            color: white;
            border: 1px solid rgba(0,0,0,0.1);
        }

        .arch-electrode { background-color: #475569; }
        .arch-active { 
            background-color: #d97706; 
            padding: 1.25rem;
            font-size: 1rem;
            color: #ffffff;
        }

        /* Prospective invention portfolio */
        .invention-intro {
            padding: 1.25rem;
            margin-bottom: 1.5rem;
            background: #ecfdf5;
            border-left: 4px solid var(--accent);
            border-radius: 0 6px 6px 0;
        }

        .invention-intro strong { color: #065f46; }

        .invention-grid {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 1rem;
        }

        .invention-card {
            border: 1px solid var(--border);
            border-top: 3px solid var(--accent);
            border-radius: 6px;
            padding: 1.15rem;
            background: #ffffff;
        }

        .invention-card h3 {
            margin: 0.65rem 0 0.55rem;
            font-size: 1.05rem;
            color: #0f172a;
        }

        .invention-card p {
            margin-bottom: 0.65rem;
            font-size: 0.92rem;
        }

        .invention-card p:last-child { margin-bottom: 0; }

        .concept-domain {
            display: inline-block;
            color: #065f46;
            background: #d1fae5;
            border: 1px solid #6ee7b7;
            border-radius: 4px;
            padding: 0.15rem 0.45rem;
            font-size: 0.7rem;
            font-weight: 700;
            text-transform: uppercase;
        }

        /* References list */
        .ref-list {
            font-size: 0.9rem;
            line-height: 1.5;
        }

        .ref-list ol {
            padding-left: 1.25rem;
        }

        .ref-list li {
            margin-bottom: 0.65rem;
            padding-left: 0;
        }

        .ref-list a {
            overflow-wrap: anywhere;
        }

        .ref-list li::before {
            content: none;
        }

        /* Footer */
        footer {
            background-color: #0f172a;
            color: #94a3b8;
            text-align: center;
            padding: 2.5rem 1rem;
            margin-top: 3rem;
            font-size: 0.9rem;
            border-top: 1px solid #1e293b;
        }

        footer a { color: #60a5fa; text-decoration: none; }
        footer a:hover { text-decoration: underline; }

        /* Responsive */
        @media (max-width: 768px) {
            .grid-2 { grid-template-columns: 1fr; }
            .invention-grid { grid-template-columns: 1fr; }
            table { font-size: 0.85rem; }
            th, td { padding: 0.5rem; }
            header h1 { font-size: 1.75rem; }
            .section-card { padding: 1.5rem; }
        }

        @media (min-width: 769px) and (max-width: 1024px) {
            .invention-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
        }