/* latin */
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url(/fonts/tDbV2o-flEEny0FZhsfKu5WU4xD7OwE.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* latin */
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(/fonts/tDbV2o-flEEny0FZhsfKu5WU4xD7OwE.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* latin */
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(/fonts/tDbV2o-flEEny0FZhsfKu5WU4xD7OwE.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* latin */
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(/fonts/tDbV2o-flEEny0FZhsfKu5WU4xD7OwE.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* latin */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(/fonts/V8mDoQDjQSkFtoMM3T6r8E7mPbF4Cw.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* latin */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(/fonts/V8mDoQDjQSkFtoMM3T6r8E7mPbF4Cw.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* latin */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(/fonts/V8mDoQDjQSkFtoMM3T6r8E7mPbF4Cw.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* latin */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(/fonts/V8mDoQDjQSkFtoMM3T6r8E7mPbF4Cw.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
    :root {
      /* Monochrome tactical HUD palette (dark, default) */
      --ink: #000000;
      --panel: #06090a;
      --panel2: #0b1113;
      --panel3: #0f1618;
      --line: #1a2427;
      --line-bright: #2a3a3f;
      --text: #d4e4e0;
      --text-dim: #9ab5ae;
      --mute: #5a7a73;
      --mute-2: #3a4f4a;
      --accent: #7de3c7;
      /* mint, primary accent */
      --accent-soft: #4fa990;
      --accent-rgb: 125, 227, 199;
      --accent-glow: rgba(var(--accent-rgb), 0.14);
      --ocean: #5eead4;
      /* secondary accent */
      --warn: #fcd34d;
      /* amber, highlight/bounds */
      --err: #fb7185;
      /* coral, error/residual */
      --blue: #a5c4ff;
      /* cool, quantized */
      /* Canvas palette, read by JS via getComputedStyle */
      --canvas-bg: #04080a;
      --canvas-grid: #24243a;
      --canvas-grid-soft: #1a1a28;
      --canvas-axis: #2a3a3f;
      --canvas-text: #d4e4e0;
      --canvas-text-dim: #b0b0c4;
      --canvas-mute: #6a6a80;
      --canvas-legend-bg: rgba(4, 8, 10, 0.88);
      /* Semantic aliases so existing code keeps working */
      --bg: var(--ink);
      --bg2: var(--panel2);
      --card: var(--panel);
      --card2: var(--panel3);
      --border: var(--line);
      --orig: var(--accent);
      --rot: var(--ocean);
      --quant: var(--blue);
      --gold: var(--warn);
      --red: var(--err);
    }

    :root[data-theme="light"] {
      --ink: #f5f7f4;
      --panel: #ffffff;
      --panel2: #f2f5f2;
      --panel3: #e8ece8;
      --line: #d3ddd7;
      --line-bright: #a7b9b1;
      --text: #0f1a17;
      --text-dim: #42584f;
      --mute: #72877f;
      --mute-2: #a7b9b1;
      --accent: #0e8d72;
      --accent-soft: #36a68a;
      --accent-rgb: 14, 141, 114;
      --accent-glow: rgba(14, 141, 114, 0.12);
      --ocean: #0d8b98;
      --warn: #b8860b;
      --err: #be123c;
      --blue: #2241b8;
      --canvas-bg: #fbfcfa;
      --canvas-grid: #c9d6cf;
      --canvas-grid-soft: #e4ece6;
      --canvas-axis: #98a9a1;
      --canvas-text: #0f1a17;
      --canvas-text-dim: #42584f;
      --canvas-mute: #72877f;
      --canvas-legend-bg: rgba(255, 255, 255, 0.92);
    }

    * {
      box-sizing: border-box;
    }

    html,
    body {
      margin: 0;
      padding: 0;
      background: var(--ink);
      color: var(--text);
    }

    body {
      font-family: "Space Grotesk", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
      font-size: 16.5px;
      line-height: 1.62;
      background:
        radial-gradient(ellipse 80% 60% at 50% -10%, rgba(var(--accent-rgb), 0.04), transparent 60%),
        var(--ink);
      background-attachment: fixed;
    }

    /* Global grid overlay, the signature HUD background */
    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: 0;
      background-image:
        linear-gradient(rgba(var(--accent-rgb), 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--accent-rgb), 0.035) 1px, transparent 1px);
      background-size: 64px 64px;
      mask-image: radial-gradient(ellipse 70% 80% at 50% 50%, #000 50%, transparent 100%);
      -webkit-mask-image: radial-gradient(ellipse 70% 80% at 50% 50%, #000 50%, transparent 100%);
    }

    body::after {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: 0;
      background: repeating-linear-gradient(0deg, rgba(var(--accent-rgb), 0.015) 0 1px, transparent 1px 3px);
      mix-blend-mode: screen;
    }

    :root[data-theme="light"] body::before {
      background-image:
        linear-gradient(rgba(var(--accent-rgb), 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--accent-rgb), 0.06) 1px, transparent 1px);
    }

    :root[data-theme="light"] body::after {
      background: repeating-linear-gradient(0deg, rgba(var(--accent-rgb), 0.03) 0 1px, transparent 1px 3px);
      mix-blend-mode: multiply;
    }

    code,
    .mono,
    pre {
      font-family: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    }

    /* Layout */
    .wrap {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 260px minmax(0, 1fr);
      max-width: 1440px;
      margin: 0 auto;
    }

    nav.toc {
      position: sticky;
      top: 0;
      align-self: start;
      height: 100vh;
      padding: 28px 20px 28px 22px;
      border-right: 1px solid var(--line);
      overflow-y: auto;
      background: linear-gradient(180deg, color-mix(in srgb, var(--panel) 88%, transparent) 0%, color-mix(in srgb, var(--panel) 96%, transparent) 100%);
      backdrop-filter: blur(6px);
    }

    nav.toc .brand {
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      letter-spacing: 0.25em;
      color: var(--accent);
      text-transform: uppercase;
      margin-bottom: 4px;
    }

    nav.toc .brand-sub {
      font-family: "JetBrains Mono", monospace;
      font-size: 9.5px;
      letter-spacing: 0.3em;
      color: var(--mute);
      text-transform: uppercase;
      margin-bottom: 18px;
      padding-bottom: 12px;
      border-bottom: 1px dashed var(--line);
    }

    nav.toc h2 {
      font-family: "JetBrains Mono", monospace;
      font-size: 10.5px;
      text-transform: uppercase;
      letter-spacing: 0.22em;
      color: var(--mute);
      font-weight: 500;
      margin: 0 0 10px 2px;
    }

    nav.toc ol {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    nav.toc li {
      position: relative;
    }

    nav.toc a {
      display: flex;
      gap: 12px;
      padding: 7px 10px;
      border-left: 2px solid transparent;
      color: var(--text-dim);
      text-decoration: none;
      font-family: "JetBrains Mono", monospace;
      font-size: 12px;
      letter-spacing: 0.03em;
      line-height: 1.35;
      text-transform: uppercase;
      transition: background .12s, color .12s, border-color .12s;
    }

    nav.toc a .n {
      color: var(--mute-2);
      font-family: "JetBrains Mono", monospace;
      font-size: 10.5px;
      flex: 0 0 28px;
      padding-top: 1px;
    }

    nav.toc a:hover {
      background: rgba(var(--accent-rgb), 0.04);
      color: var(--accent);
      border-left-color: var(--accent-soft);
    }

    nav.toc a:hover .n {
      color: var(--accent-soft);
    }

    nav.toc a.active {
      background: rgba(var(--accent-rgb), 0.07);
      color: var(--accent);
      border-left-color: var(--accent);
    }

    nav.toc a.active .n {
      color: var(--accent);
    }

    nav.toc hr {
      border: none;
      border-top: 1px dashed var(--line);
      margin: 20px 0;
    }

    .theme-toggle {
      display: inline-block;
      width: 100%;
      padding: 7px 10px;
      background: transparent;
      color: var(--text-dim);
      border: 1px solid var(--line-bright);
      border-radius: 2px;
      font-family: "JetBrains Mono", monospace;
      font-size: 10.5px;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      cursor: pointer;
      margin-bottom: 14px;
      transition: background .15s, border-color .15s, color .15s;
    }

    .theme-toggle:hover {
      background: rgba(var(--accent-rgb), 0.06);
      border-color: var(--accent-soft);
      color: var(--accent);
    }

    nav.toc small {
      font-family: "JetBrains Mono", monospace;
      font-size: 10.5px;
      letter-spacing: 0.05em;
      color: var(--mute);
      text-transform: uppercase;
      line-height: 1.6;
    }

    main {
      padding: 48px 56px 120px 56px;
      min-width: 0;
      position: relative;
    }

    @media (max-width: 900px) {
      .wrap {
        grid-template-columns: 1fr;
      }

      nav.toc {
        position: static;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--line);
      }

      main {
        padding: 24px 18px 80px;
      }
    }

    /* Typography */
    h1 {
      font-family: "Space Grotesk", sans-serif;
      font-size: 44px;
      line-height: 1.1;
      letter-spacing: -0.025em;
      margin: 0 0 12px;
      font-weight: 700;
      color: var(--text);
    }

    h1 .accent {
      background: linear-gradient(90deg, var(--accent) 0%, var(--ocean) 55%, var(--warn) 100%);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    h2 {
      font-family: "Space Grotesk", sans-serif;
      font-size: 30px;
      line-height: 1.15;
      letter-spacing: -0.015em;
      margin: 0 0 12px;
      font-weight: 600;
      color: var(--text);
    }

    h3 {
      font-family: "JetBrains Mono", monospace;
      font-size: 12px;
      margin: 28px 0 10px;
      color: var(--accent);
      font-weight: 500;
      text-transform: uppercase;
      letter-spacing: 0.18em;
    }

    h3::before {
      content: "▸ ";
      color: var(--accent-soft);
    }

    p {
      margin: 0 0 14px;
      color: var(--text);
    }

    .lede {
      font-size: 20px;
      line-height: 1.55;
      color: var(--text-dim);
      max-width: 800px;
    }

    small,
    .small {
      font-size: 13.5px;
      color: var(--text-dim);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-family: "JetBrains Mono", monospace;
      font-size: 10.5px;
      text-transform: uppercase;
      letter-spacing: 0.3em;
      color: var(--accent);
      font-weight: 500;
      margin-bottom: 16px;
      padding: 3px 10px 3px 0;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.15), 0 0 10px var(--accent);
      animation: pulse 2.4s ease-in-out infinite;
    }

    @keyframes pulse {

      0%,
      100% {
        opacity: 1;
      }

      50% {
        opacity: 0.35;
      }
    }

    html {
      scroll-behavior: smooth;
    }

    a {
      color: var(--accent);
      text-decoration: none;
      border-bottom: 1px dashed rgba(var(--accent-rgb), 0.3);
    }

    a:hover {
      border-bottom-color: var(--accent);
    }

    hr {
      border: none;
      border-top: 1px dashed var(--line);
      margin: 40px 0;
    }

    /* Section */
    section {
      padding: 72px 0 32px;
      border-bottom: 1px dashed var(--line);
      scroll-margin-top: 0;
      position: relative;
    }

    section:first-of-type {
      padding-top: 24px;
    }

    section:last-of-type {
      border-bottom: none;
    }

    /* Panels (cards) with corner brackets */
    .card,
    .panel {
      background: linear-gradient(180deg, var(--panel) 0%, var(--panel2) 100%);
      border: 1px solid var(--line);
      border-radius: 2px;
      padding: 20px 22px;
      margin: 16px 0;
      position: relative;
    }

    .card::before,
    .card::after,
    .panel::before,
    .panel::after {
      content: "";
      position: absolute;
      width: 10px;
      height: 10px;
      border-color: var(--accent);
      border-style: solid;
      pointer-events: none;
    }

    .card::before,
    .panel::before {
      top: -1px;
      left: -1px;
      border-width: 1px 0 0 1px;
    }

    .card::after,
    .panel::after {
      top: -1px;
      right: -1px;
      border-width: 1px 1px 0 0;
    }

    .card>i.cbr,
    .panel>i.cbr {
      position: absolute;
      width: 10px;
      height: 10px;
      border-color: var(--accent);
      border-style: solid;
      pointer-events: none;
    }

    .card>i.cbr.bl,
    .panel>i.cbr.bl {
      bottom: -1px;
      left: -1px;
      border-width: 0 0 1px 1px;
    }

    .card>i.cbr.br,
    .panel>i.cbr.br {
      bottom: -1px;
      right: -1px;
      border-width: 0 1px 1px 0;
    }

    .card.accent {
      border-top: 1px solid var(--warn);
    }

    .card.accent::before,
    .card.accent::after {
      border-color: var(--warn);
    }

    .card.accent>i.cbr {
      border-color: var(--warn);
    }

    .card.insight {
      border-top: 1px solid var(--accent);
      background: linear-gradient(180deg, rgba(var(--accent-rgb), 0.05) 0%, var(--panel2) 80%);
    }

    .card.caution {
      border-top: 1px solid var(--err);
      background: linear-gradient(180deg, rgba(251, 113, 133, 0.05) 0%, var(--panel2) 80%);
    }

    .card.caution::before,
    .card.caution::after {
      border-color: var(--err);
    }

    .card.caution>i.cbr {
      border-color: var(--err);
    }

    /* Panel header used inside cards */
    .panel-hd {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      margin: -4px 0 12px 0;
      font-family: "JetBrains Mono", monospace;
      font-size: 10.5px;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      color: var(--mute);
      padding-bottom: 8px;
      border-bottom: 1px dashed var(--line);
    }

    .panel-hd .tag {
      color: var(--accent);
    }

    .panel-hd .stat {
      color: var(--text-dim);
    }

    /* Collapsible derivation */
    details.deriv {
      margin: 18px 0;
      border: 1px dashed var(--line);
      border-radius: 2px;
      background: rgba(var(--accent-rgb), 0.02);
    }

    details.deriv>summary {
      cursor: pointer;
      list-style: none;
      padding: 12px 16px;
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--text-dim);
    }

    details.deriv>summary::-webkit-details-marker {
      display: none;
    }

    details.deriv>summary::before {
      content: "\25B8  ";
      color: var(--accent);
    }

    details.deriv[open]>summary::before {
      content: "\25BE  ";
    }

    details.deriv>summary:hover {
      color: var(--accent);
    }

    details.deriv[open]>summary {
      border-bottom: 1px dashed var(--line);
    }

    details.deriv .deriv-body {
      padding: 12px 16px 16px;
    }

    details.deriv .deriv-body p:last-child {
      margin-bottom: 0;
    }

    /* Pills */
    .pill {
      display: inline-block;
      padding: 2px 9px;
      border-radius: 2px;
      font-family: "JetBrains Mono", monospace;
      font-size: 10.5px;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      border: 1px solid var(--line-bright);
      color: var(--text-dim);
      margin-right: 6px;
    }

    .pill.orig {
      color: var(--accent);
      border-color: rgba(var(--accent-rgb), 0.40);
      background: rgba(var(--accent-rgb), 0.05);
    }

    .pill.rot {
      color: var(--ocean);
      border-color: rgba(94, 234, 212, 0.40);
      background: rgba(94, 234, 212, 0.04);
    }

    .pill.quant {
      color: var(--blue);
      border-color: rgba(165, 196, 255, 0.40);
      background: rgba(165, 196, 255, 0.04);
    }

    .pill.err {
      color: var(--err);
      border-color: rgba(251, 113, 133, 0.40);
      background: rgba(251, 113, 133, 0.04);
    }

    .pill.gold {
      color: var(--warn);
      border-color: rgba(252, 211, 77, 0.40);
      background: rgba(252, 211, 77, 0.04);
    }

    /* Controls */
    .controls {
      display: flex;
      flex-wrap: wrap;
      gap: 14px 22px;
      align-items: center;
      margin: 10px 0 16px;
    }

    .ctrl {
      display: flex;
      gap: 10px;
      align-items: center;
      font-family: "JetBrains Mono", monospace;
      font-size: 11.5px;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--mute);
    }

    .ctrl label {
      color: var(--text-dim);
    }

    .ctrl .val {
      color: var(--accent);
      font-family: "JetBrains Mono", monospace;
      min-width: 40px;
      text-align: right;
      padding: 1px 7px;
      border: 1px solid var(--line);
      border-radius: 1px;
      background: rgba(var(--accent-rgb), 0.04);
      font-size: 11.5px;
      letter-spacing: 0.03em;
    }

    input[type=range] {
      appearance: none;
      -webkit-appearance: none;
      width: 160px;
      height: 2px;
      background: var(--line-bright);
      border-radius: 0;
      outline: none;
    }

    input[type=range]::-webkit-slider-thumb {
      -webkit-appearance: none;
      appearance: none;
      width: 12px;
      height: 12px;
      background: var(--accent);
      cursor: pointer;
      transform: rotate(45deg);
      /* diamond */
      box-shadow: 0 0 8px rgba(var(--accent-rgb), 0.6);
    }

    input[type=range]::-moz-range-thumb {
      width: 12px;
      height: 12px;
      background: var(--accent);
      border: none;
      cursor: pointer;
      transform: rotate(45deg);
      box-shadow: 0 0 8px rgba(var(--accent-rgb), 0.6);
    }

    button {
      background: transparent;
      color: var(--text-dim);
      border: 1px solid var(--line-bright);
      padding: 7px 14px;
      border-radius: 2px;
      cursor: pointer;
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      transition: background .15s, border-color .15s, color .15s;
    }

    button:hover {
      background: rgba(var(--accent-rgb), 0.06);
      border-color: var(--accent-soft);
      color: var(--accent);
    }

    button.primary {
      border-color: var(--accent);
      color: var(--accent);
    }

    button.primary:hover {
      background: rgba(var(--accent-rgb), 0.1);
    }

    select {
      background: var(--panel);
      color: var(--text-dim);
      border: 1px solid var(--line-bright);
      padding: 6px 10px;
      border-radius: 2px;
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    /* Plots */
    .plot {
      position: relative;
      background: var(--canvas-bg);
      border: 1px solid var(--line);
      border-radius: 2px;
      overflow: hidden;
    }

    .plot::before,
    .plot::after {
      content: "";
      position: absolute;
      width: 8px;
      height: 8px;
      border-color: var(--accent-soft);
      border-style: solid;
      pointer-events: none;
    }

    .plot::before {
      top: 0;
      left: 0;
      border-width: 1px 0 0 1px;
    }

    .plot::after {
      bottom: 0;
      right: 0;
      border-width: 0 1px 1px 0;
    }

    .plot canvas {
      display: block;
      width: 100%;
      height: 100%;
    }

    .plot .legend {
      position: absolute;
      top: 10px;
      right: 12px;
      background: var(--canvas-legend-bg);
      padding: 6px 10px;
      border-radius: 1px;
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      letter-spacing: 0.06em;
      color: var(--text-dim);
      border: 1px solid var(--line);
    }

    .plot .legend .sw {
      display: inline-block;
      width: 9px;
      height: 9px;
      vertical-align: middle;
      margin-right: 6px;
    }

    .plot .caption {
      position: absolute;
      top: 10px;
      left: 12px;
      font-family: "JetBrains Mono", monospace;
      font-size: 10.5px;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      color: var(--mute);
    }

    .plot .caption .t {
      color: var(--accent);
    }

    .plot .hint {
      position: absolute;
      top: 8px;
      right: 10px;
      z-index: 2;
      font-family: "JetBrains Mono", monospace;
      font-size: 10px;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--accent);
      background: color-mix(in srgb, var(--canvas-bg) 78%, transparent);
      padding: 3px 8px;
      border-radius: 2px;
      border: 1px solid rgba(var(--accent-rgb), 0.35);
      pointer-events: none;
      user-select: none;
    }

    .plot.interactive canvas {
      cursor: grab;
    }

    .plot.interactive canvas:active {
      cursor: grabbing;
    }

    .plot-grid {
      display: grid;
      gap: 16px;
    }

    .plot-grid.cols-2 {
      grid-template-columns: 1fr 1fr;
    }

    .plot-grid.cols-3 {
      grid-template-columns: 1fr 1fr 1fr;
    }

    @media (max-width: 780px) {

      .plot-grid.cols-2,
      .plot-grid.cols-3 {
        grid-template-columns: 1fr;
      }
    }

    /* Metric strip, telemetry readouts */
    .metrics {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin: 14px 0;
    }

    .metric {
      flex: 1 1 140px;
      background: linear-gradient(180deg, var(--panel2), var(--panel));
      border: 1px solid var(--line);
      border-left: 2px solid var(--accent-soft);
      border-radius: 0;
      padding: 10px 14px;
      position: relative;
    }

    .metric .label {
      font-family: "JetBrains Mono", monospace;
      font-size: 9.5px;
      text-transform: uppercase;
      letter-spacing: 0.25em;
      color: var(--mute);
    }

    .metric .value {
      font-family: "JetBrains Mono", monospace;
      font-size: 22px;
      color: var(--text);
      margin-top: 3px;
      letter-spacing: -0.01em;
    }

    .metric .value.orig {
      color: var(--accent);
    }

    .metric .value.rot {
      color: var(--ocean);
    }

    .metric .value.quant {
      color: var(--blue);
    }

    .metric .value.err {
      color: var(--err);
    }

    .metric .value.gold {
      color: var(--warn);
    }

    /* Formula block */
    .formula {
      background: var(--canvas-bg);
      border: 1px solid var(--line);
      border-left: 2px solid var(--accent-soft);
      border-radius: 0;
      padding: 14px 18px;
      margin: 14px 0;
      overflow-x: auto;
      position: relative;
    }

    .formula::before {
      content: "EQ";
      position: absolute;
      top: 6px;
      right: 10px;
      font-family: "JetBrains Mono", monospace;
      font-size: 9px;
      letter-spacing: 0.2em;
      color: var(--mute);
    }

    .kbd {
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      padding: 1px 6px;
      border-radius: 1px;
      background: var(--panel2);
      border: 1px solid var(--line-bright);
      color: var(--accent);
    }

    /* Hero */
    header.hero {
      padding: 20px 0 10px;
      position: relative;
    }

    header.hero p.lede {
      max-width: 820px;
    }

    .refs {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin: 20px 0 8px;
    }

    .refs .ref {
      display: block;
      padding: 12px 14px;
      border: 1px solid var(--line);
      border-radius: 2px;
      text-decoration: none;
      background: linear-gradient(180deg, var(--panel2), var(--panel));
      flex: 1 1 280px;
      min-width: 0;
      position: relative;
    }

    .refs .ref::before {
      content: "▸";
      color: var(--accent-soft);
      font-size: 11px;
      position: absolute;
      top: 12px;
      right: 12px;
    }

    .refs .ref .t {
      color: var(--text);
      font-weight: 600;
      font-size: 13.5px;
      margin-bottom: 4px;
    }

    .refs .ref .s {
      color: var(--text-dim);
      font-size: 10.5px;
      font-family: "JetBrains Mono", monospace;
      letter-spacing: 0.05em;
    }

    .refs .ref:hover {
      background: rgba(var(--accent-rgb), 0.04);
      border-color: var(--accent-soft);
    }

    /* Steps pipeline */
    .steps {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 0;
      margin: 18px 0;
      background: var(--panel);
      border: 1px solid var(--line);
      border-radius: 2px;
      overflow: hidden;
    }

    .steps .step {
      padding: 14px 14px;
      border-right: 1px dashed var(--line);
      position: relative;
    }

    .steps .step:last-child {
      border-right: none;
    }

    .steps .step .n {
      font-family: "JetBrains Mono", monospace;
      color: var(--accent);
      font-size: 10px;
      letter-spacing: 0.22em;
      text-transform: uppercase;
    }

    .steps .step .t {
      font-weight: 600;
      font-size: 13.5px;
      margin: 6px 0 6px;
      color: var(--text);
    }

    .steps .step .d {
      font-size: 11.5px;
      color: var(--text-dim);
      line-height: 1.5;
    }

    @media (max-width: 780px) {
      .steps {
        grid-template-columns: 1fr 1fr;
      }

      .steps .step {
        border-bottom: 1px dashed var(--line);
      }
    }

    /* Inline math fallback */
    .math {
      font-family: "STIX Two Math", "Cambria Math", serif;
      font-style: italic;
    }

    /* Tables */
    table {
      width: 100%;
      border-collapse: collapse;
      margin: 12px 0;
      font-size: 13px;
    }

    th,
    td {
      text-align: left;
      padding: 8px 12px;
      border-bottom: 1px dashed var(--line);
    }

    th {
      color: var(--mute);
      font-weight: 500;
      font-family: "JetBrains Mono", monospace;
      font-size: 10.5px;
      text-transform: uppercase;
      letter-spacing: 0.18em;
    }

    td {
      font-size: 13px;
    }

    td.mono {
      font-family: "JetBrains Mono", monospace;
      color: var(--accent);
    }

    /* Lineage marker: small, dim, accented left border. Marks content that originates in DRIVE/EDEN. */
    .lineage-mark {
      margin: 14px 0;
      padding: 8px 12px;
      border-left: 2px solid var(--accent-soft);
      background: rgba(var(--accent-rgb), 0.04);
      color: var(--text-dim);
      font-size: 12.5px;
      line-height: 1.55;
    }

    .lineage-mark .lbl {
      display: inline-block;
      font-family: "JetBrains Mono", monospace;
      font-size: 9.5px;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      color: var(--accent);
      margin-right: 8px;
    }

    .lineage-mark a {
      color: var(--accent);
      text-decoration: none;
      border-bottom: 1px dotted var(--accent-soft);
    }

    .lineage-mark a:hover {
      color: var(--ocean);
    }

    /* Primer mini-demo grid */
    .primer-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin: 18px 0;
    }

    @media (max-width: 860px) {
      .primer-grid {
        grid-template-columns: 1fr;
      }
    }

    .primer-cell {
      background: var(--panel);
      border: 1px solid var(--line);
      border-radius: 2px;
      padding: 16px 18px;
      position: relative;
      scroll-margin-top: 24px;
    }

    .primer-cell:target {
      border-color: var(--accent);
      box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.15);
    }

    .primer-cell::before,
    .primer-cell::after {
      content: "";
      position: absolute;
      width: 8px;
      height: 8px;
      border-color: var(--accent-soft);
      border-style: solid;
      pointer-events: none;
    }

    .primer-cell::before {
      top: -1px;
      left: -1px;
      border-width: 1px 0 0 1px;
    }

    .primer-cell::after {
      top: -1px;
      right: -1px;
      border-width: 1px 1px 0 0;
    }

    .primer-cell .pt {
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 0.22em;
      color: var(--accent);
      margin-bottom: 4px;
    }

    .primer-cell .ph {
      font-size: 18px;
      font-weight: 600;
      margin: 0 0 6px;
      color: var(--text);
    }

    .primer-cell .pb {
      font-size: 14.5px;
      color: var(--text-dim);
      line-height: 1.55;
      margin-bottom: 12px;
    }

    .primer-cell .plot {
      height: 240px;
    }

    .primer-cell>.plot+.controls {
      margin-top: 12px;
    }

    .primer-cell .readout {
      margin-top: 10px;
    }

    .primer-cell .readout {
      margin-top: 10px;
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      color: var(--text-dim);
      letter-spacing: 0.04em;
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }

    .primer-cell .readout b {
      color: var(--accent);
      font-weight: 500;
    }

    .primer-cell .readout .k {
      color: var(--mute);
      text-transform: uppercase;
      letter-spacing: 0.18em;
      font-size: 10.5px;
      margin-right: 4px;
    }

    /* Glossary inline pop, reusable */
    .gloss {
      border-bottom: 1px dotted var(--accent-soft);
      cursor: help;
      color: var(--accent);
    }

    /* Status strip (optional) */
    .status-strip {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
      font-family: "JetBrains Mono", monospace;
      font-size: 10px;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      color: var(--mute);
      margin: 10px 0 4px;
    }

    .status-strip .s {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .status-strip .s::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 6px var(--accent);
    }

    .status-strip .s.warn::before {
      background: var(--warn);
      box-shadow: 0 0 6px var(--warn);
    }

    .status-strip .s.err::before {
      background: var(--err);
      box-shadow: 0 0 6px var(--err);
    }

    /* Mobile-viewport advisory: shown below 900px until dismissed */
    .mobile-advisory {
      display: none;
    }

    @media (max-width: 900px) {
      .mobile-advisory:not(.dismissed) {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        position: sticky;
        top: 0;
        z-index: 50;
        padding: 10px 14px;
        background: var(--panel2);
        border-bottom: 1px solid var(--warn);
        color: var(--text);
        font-size: 13px;
        line-height: 1.4;
      }
    }

    .mobile-advisory .icon {
      color: var(--warn);
      flex: 0 0 auto;
      font-weight: 600;
    }

    .mobile-advisory .msg {
      flex: 1 1 auto;
    }

    .mobile-advisory .close {
      flex: 0 0 auto;
      background: transparent;
      border: 1px solid var(--line-bright);
      color: var(--text-dim);
      border-radius: 4px;
      padding: 2px 8px;
      cursor: pointer;
      font-family: inherit;
      font-size: 12px;
    }

    .mobile-advisory .close:hover {
      color: var(--text);
      border-color: var(--text-dim);
    }

/* ================================================================
   HRH additions: picks list inside a .card panel.
   Stays inside TQ vocabulary (mono labels, accent values, dashed
   row separators, ▸ leader on factor lines).
   ================================================================ */
.picks-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.picks-list li.pick {
  display: grid;
  grid-template-columns: 30px 1fr auto;
  grid-template-areas:
    "rank player  score"
    ".    factor  metrics";
  column-gap: 14px;
  row-gap: 4px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}
.picks-list li.pick:first-child { padding-top: 4px; }
.picks-list li.pick:last-child  { border-bottom: none; padding-bottom: 0; }

.picks-list .rank {
  grid-area: rank;
  font-family: "JetBrains Mono", monospace;
  color: var(--mute);
  font-size: 10.5px;
  letter-spacing: 0.20em;
  align-self: start;
  padding-top: 6px;
}
.picks-list .player {
  grid-area: player;
  color: var(--text);
  font-weight: 600;
  font-size: 16.5px;
  letter-spacing: -0.005em;
  align-self: baseline;
}
.picks-list .score {
  grid-area: score;
  font-family: "JetBrains Mono", monospace;
  font-size: 22px;
  font-weight: 500;
  color: var(--accent);
  align-self: baseline;
  white-space: nowrap;
  letter-spacing: -0.01em;
}
.picks-list .factor {
  grid-area: factor;
  color: var(--text-dim);
  font-size: 13.5px;
  line-height: 1.55;
}
.picks-list .factor::before {
  content: "▸ ";
  color: var(--accent-soft);
}
.picks-list .metrics-inline {
  grid-area: metrics;
  display: flex;
  gap: 12px;
  font-family: "JetBrains Mono", monospace;
  font-size: 10.5px;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-self: baseline;
}
.picks-list .metrics-inline .pair { display: inline-flex; gap: 5px; align-items: baseline; }
.picks-list .metrics-inline .k {
  color: var(--mute);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 9.5px;
}
.picks-list .metrics-inline b { color: var(--text); font-weight: 500; }
.picks-list .metrics-inline b.ok    { color: var(--accent); }
.picks-list .metrics-inline b.maybe { color: var(--warn); }
.picks-list .metrics-inline b.drop  { color: var(--err); }

.shadow-section .card { background: linear-gradient(180deg, var(--panel) 0%, var(--panel2) 100%); }
.shadow-section .picks-list .score { color: var(--blue); }

@media (max-width: 700px) {
  .picks-list li.pick {
    grid-template-areas:
      "rank player score"
      "rank factor factor"
      "rank metrics metrics";
  }
  .picks-list .metrics-inline {
    justify-content: flex-start;
    margin-top: 2px;
  }
  .picks-list .score { font-size: 18px; }
  .picks-list .player { font-size: 15.5px; }
}

/* Footnote / source line */
.source-note {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.10em;
  color: var(--mute);
  text-transform: uppercase;
  margin-top: 36px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}