html { scroll-behavior: smooth; }
:root {
    --paper: #FFFFFF;
    --paper-2: #F4F5F7;
    --paper-3: #ECEEF2;
    --ink: #1A2332;
    --ink-2: #4A5568;
    --ink-3: #8995A6;
    --rule: #E2E5EA;
    --rule-soft: #EDEFF3;
    --accent: #1CABE2;
    --accent-soft: #D9F0F9;
    --accent-green: #5F9D8B;
    --accent-green-soft: #E6F1EE;
    --accent-purple: #8176A9;
    --accent-purple-soft: #ECEAF3;
    --accent-orange: #C98654;
    /* Soft orange tint (~color-mix(accent-orange 22%, paper)); used when oklab color-mix unsupported */
    --accent-orange-soft: #F3E4D9;
    /* Identity System — chart neutrals / sequential ramps */
    --accent-teal-soft: #E4EEF0;
    --accent-teal: #4F8F9A;
    --accent-indigo: #657CA8;
    --accent-mauve: #9A7FA0;
    --accent-steel: #6F879B;
    --accent-sage: #8FA17A;
    /* Identity — sequential ramps (age-grade map) */
    --accent-rose-soft: #F2E6E9;
    --accent-rose: #B77986;
    --accent-clay: #B46F5B;

    /* Homepage age-grade thumbnail: grade lines = grey ramp (G1 lightest → G8 darkest); expected line uses accent */
    --chart-pcard-grade-1: #DFE2E8;
    --chart-pcard-grade-2: #D0D4DD;
    --chart-pcard-grade-3: #C1C6D2;
    --chart-pcard-grade-4: #B2B8C7;
    --chart-pcard-grade-5: #A3AABD;
    --chart-pcard-grade-6: #949CB2;
    --chart-pcard-grade-7: #858FA8;
    --chart-pcard-grade-8: #76829D;

    /*
      Fallback approximations when color-mix(in oklab, …) is unsupported (same palette anchors).
      Update if --paper or --accent hex values change.
    */
    --compat-paper-alpha-90: rgba(255, 255, 255, 0.9);
    --compat-accent-on-paper-bg: #DFF3FB;
    --compat-accent-on-paper-border: #BBE6F6;
    --compat-accent-focus-ring: rgba(28, 171, 226, 0.22);

    --sans: "Manrope", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
    --display: "Sora", "Manrope", -apple-system, BlinkMacSystemFont, sans-serif;
    --mono: "JetBrains Mono", ui-monospace, monospace;

    --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px; --s-5: 24px;
    --s-6: 32px; --s-7: 48px; --s-8: 64px; --s-9: 96px; --s-10: 128px;

    --radius-s: 6px; --radius-m: 12px; --radius-l: 20px; --radius-xl: 32px;

    --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
    --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
  }

  * { box-sizing: border-box; }
  html, body { margin: 0; padding: 0; }
  :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }
  body {
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

  /* Reveal animation */
  .reveal { opacity: 0; transform: translateY(14px); transition: opacity 900ms var(--ease), transform 900ms var(--ease); }
  .reveal.in { opacity: 1; transform: none; }
  .reveal.delay-1 { transition-delay: 80ms; }
  .reveal.delay-2 { transition-delay: 160ms; }
  .reveal.delay-3 { transition-delay: 240ms; }
  .reveal.delay-4 { transition-delay: 320ms; }
  .reveal.delay-5 { transition-delay: 400ms; }

  /* Topbar */
  .topbar {
    position: sticky; top: 0; z-index: 50;
    background: var(--compat-paper-alpha-90);
    background: color-mix(in oklab, var(--paper) 90%, transparent);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--rule-soft);
  }
  .topbar-inner {
    max-width: 1280px; margin: 0 auto; padding: 14px clamp(16px, 4vw, 32px);
    display: flex; align-items: center; justify-content: space-between;
    font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em;
    text-transform: uppercase; color: var(--ink-2);
  }
  .topbar a { color: var(--ink-2); text-decoration: none; transition: color 240ms var(--ease); }
  .topbar a:hover { color: var(--accent); }
  .topbar nav { display: flex; gap: 24px; }
  .topbar nav a { padding: 8px 4px; margin: -8px -4px; }

  .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); display: inline-block; vertical-align: middle; }
  .dot.pulse { animation: pulse 2.6s ease-in-out infinite; }
  
  @keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

  .mark-wordmark-small {
    display: flex; align-items: center; gap: 8px; text-decoration: none;
    font-family: var(--sans); font-weight: 300; font-size: 20px; letter-spacing: -0.02em;
    color: var(--ink);
  }
  .mark-wordmark-small strong { font-weight: 600; }
  .mark-wordmark-small .dot { background: var(--accent); margin-left: 1px; }

  main { max-width: 1280px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 32px); }

  section { padding: clamp(48px, 9vw, 96px) 0; position: relative; }
  section + section .sep {
    position: absolute;
    top: -14px; left: 0; right: 0;
    width: 100%; height: 28px;
    pointer-events: none;
    overflow: visible;
  }
  section + section .sep .sep-line {
    fill: none;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    opacity: 0.85;
  }
  .section-head { display: grid; grid-template-columns: 200px 1fr; gap: clamp(16px, 3vw, 48px); margin-bottom: var(--s-7); align-items: baseline; }
  .section-num { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); padding-top: 10px; }
  .section-title { font-family: var(--display); font-weight: 200; font-size: clamp(28px, 3vw, 48px); line-height: 1.05; letter-spacing: -0.035em; margin: 0 0 16px; }
  .section-title em { font-style: normal; font-weight: 600; }
  .section-desc { font-size: clamp(15px, 1.4vw, 17px); color: var(--ink-2); max-width: 60ch; line-height: 1.65; }

  /* HERO */
  .hero { padding: 64px 0 96px; position: relative; }
  .hero-bg-chart {
    position: relative;
    width: 100%; height: 120px;
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    animation: heroChartIn 2400ms var(--ease) 1200ms forwards;
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 15%, black 65%, transparent 100%);
            mask-image: linear-gradient(to right, transparent 0%, black 15%, black 65%, transparent 100%);
    margin-top: 24px;
  }
  .hero-bg-chart svg { width: 100%; height: 100%; display: block; overflow: visible; }
  .hero-bg-chart path { fill: none; stroke: var(--accent); stroke-width: 1.5; opacity: 0.4; stroke-linecap: round; stroke-linejoin: round; }
  .hero-bg-chart .fill { fill: url(#heroFillGrad); stroke: none; }
  .hero-bg-chart circle { fill: var(--accent); opacity: 0.85; }
  @keyframes heroChartIn { to { opacity: 1; } }
  .hero > .hero-grid, .hero > .hero-meta { position: relative; z-index: 1; }
  .hero-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: clamp(32px, 5vw, 64px); align-items: end; }

  .hero-eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 32px; display: flex; align-items: center; gap: 12px; }
  .hero-eyebrow::before { content: ""; width: 24px; height: 1px; background: var(--ink-3); }

  .hero h1 {
    font-family: var(--display);
    font-weight: 200;
    font-size: clamp(56px, 8vw, 120px);
    line-height: 0.92;
    letter-spacing: -0.045em;
    margin: 0 0 32px;
  }
  .hero h1 .second { font-weight: 600; display: block; }

  .hero-tag { font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-2); margin-bottom: 16px; }
  .hero-lede { font-size: clamp(16px, 1.5vw, 18px); line-height: 1.65; color: var(--ink-2); max-width: 50ch; margin: 0 0 36px; }

  .hero-portrait {
    position: relative;
    aspect-ratio: 4 / 5;
    background: var(--paper-2);
    border-radius: var(--radius-l);
    overflow: hidden;
    border: 1px solid var(--rule-soft);
  }
  .stripes { position: absolute; inset: 0; background-image: repeating-linear-gradient(135deg, transparent 0 14px, rgba(26, 35, 50, 0.04) 14px 15px); z-index: 2; pointer-events: none; }
  .pcard-img:has(> img) > .stripes,
  .pcard-img.pcard-chart-thumb > .stripes,
  .pcard-img:has(.placeholder) > .stripes {
    background-image: none;
  }
  .blog-hero-visual:has(> img) > .stripes,
  .blog-hero-visual:has(.blog-hero-chart-placeholder) > .stripes {
    background-image: none;
  }
  .hero-portrait svg { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.85; }
  .hero-portrait .portrait-img {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    filter: grayscale(0.65) brightness(1.04) contrast(0.92);
    opacity: 0.78;
    mix-blend-mode: luminosity;
    z-index: 1;
    transform: scale(1.04);
    transition: opacity 700ms var(--ease), filter 800ms var(--ease), mix-blend-mode 800ms var(--ease), transform 1200ms var(--ease);
  }
  /* Hold the photo hidden until it has fully decoded, then settle it in —
     prevents the raw PNG painting top-to-bottom as it streams on first load */
  .hero-portrait .portrait-img:not(.loaded) { opacity: 0; }
  .hero-portrait .portrait-img.loaded { opacity: 0.78; transform: scale(1); }
  .hero-portrait:hover .portrait-img {
    opacity: 0.92;
    filter: grayscale(0.45) brightness(1.02) contrast(0.98);
    mix-blend-mode: normal;
    transform: scale(1);
  }
  .hero-portrait .portrait-veil {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(244, 245, 247, 0.18) 0%, rgba(244, 245, 247, 0.55) 100%);
    z-index: 2;
    pointer-events: none;
  }
  .hero-portrait .tag { position: absolute; top: 14px; left: 14px; z-index: 3; font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); background: var(--paper); padding: 4px 10px; border-radius: 999px; border: 1px solid var(--rule-soft); }

  .hero-meta { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; margin-top: 80px; padding-top: 32px; border-top: 1px solid var(--rule); }
  .hero-meta dt { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 8px; }
  .hero-meta dd { margin: 0; font-size: 15px; color: var(--ink); line-height: 1.5; }

  /* LOGO */
  .logo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--rule-soft); border: 1px solid var(--rule-soft); border-radius: var(--radius-l); overflow: hidden; }
  .logo-cell { background: var(--paper); padding: 64px 40px; min-height: 320px; display: flex; flex-direction: column; justify-content: space-between; transition: background 320ms var(--ease); }
  .logo-cell:hover { background: var(--paper-2); }
  .logo-cell .mark { flex: 1; display: flex; align-items: center; justify-content: center; }
  .logo-cell .label { display: flex; justify-content: space-between; align-items: baseline; font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); }
  .logo-cell .label strong { color: var(--ink); font-weight: 500; }

  .logo-grid.dark { background: var(--ink); border-color: var(--ink); margin-top: 16px; }
  .logo-grid.dark .logo-cell { background: var(--ink); color: var(--paper); }
  .logo-grid.dark .logo-cell:hover { background: #232E40; }
  .logo-grid.dark .label { color: #8995A6; }
  .logo-grid.dark .label strong { color: var(--paper); }

  .mark-wordmark {
    font-family: var(--sans); font-weight: 300; font-size: 44px; letter-spacing: -0.035em; line-height: 1;
    color: var(--ink); text-align: center;
    position: relative; display: inline-block; padding: 14px 0;
    white-space: nowrap;
  }
  .mark-wordmark strong { font-weight: 600; position: relative; z-index: 1; }
  .mark-wordmark .word { position: relative; z-index: 1; }
  .mark-wordmark .dot { color: var(--accent); position: relative; z-index: 1; }
  .mark-wordmark .accent-line {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    overflow: visible; opacity: 1;
    z-index: 0; pointer-events: none;
  }
  .mark-wordmark .accent-line path {
    fill: none; stroke: var(--accent); stroke-width: 4; stroke-linecap: round; stroke-linejoin: round;
    stroke-dasharray: 400; stroke-dashoffset: 400;
    animation: drawLine 2400ms var(--ease) 600ms forwards;
    opacity: 0.85;
  }
  .mark-wordmark .accent-line circle {
    fill: var(--accent); opacity: 0;
    animation: dotIn 600ms var(--ease) 2800ms forwards;
  }
  @keyframes drawLine { to { stroke-dashoffset: 0; } }
  @keyframes dotIn { to { opacity: 1; } }
  .dark .mark-wordmark { color: var(--paper); }

  .mark-mono { width: 96px; height: 96px; border-radius: 50%; background: var(--ink); color: var(--paper); display: flex; align-items: center; justify-content: center; font-family: var(--sans); font-weight: 500; font-size: 36px; letter-spacing: -0.04em; position: relative; }
  .mark-mono .mono-arc { position: absolute; inset: -6px; width: calc(100% + 12px); height: calc(100% + 12px); pointer-events: none; overflow: visible; }
  .mark-mono .mono-arc circle { fill: none; stroke: var(--accent); stroke-width: 1.4; stroke-linecap: round; stroke-dasharray: 70 260; transform-origin: center; animation: arcSpin 9s linear infinite; }
  @keyframes arcSpin { to { transform: rotate(360deg); } }
  .mark-mono::after { content: ""; position: absolute; inset: -10px; border-radius: 50%; border: 1px solid var(--rule); transition: transform 600ms var(--ease); }
  .logo-cell:hover .mark-mono::after { transform: scale(1.06); }
  .dark .mark-mono { background: var(--paper); color: var(--ink); }
  .dark .mark-mono::after { border-color: #2A3445; }

  /* COLOR */
  .palette { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr; gap: 16px; }
  .swatch { border-radius: var(--radius-m); overflow: hidden; border: 1px solid var(--rule-soft); display: flex; flex-direction: column; transition: transform 400ms var(--ease), box-shadow 400ms var(--ease); }
  .swatch:hover { transform: translateY(-2px); box-shadow: 0 12px 32px -16px rgba(26, 35, 50, 0.18); }
  .swatch-color { aspect-ratio: 1.1 / 1; }
  .swatch-meta { padding: 16px 18px 18px; background: var(--paper); }
  .swatch-meta .name { font-family: var(--sans); font-size: 17px; font-weight: 500; letter-spacing: -0.01em; margin: 0 0 4px; }
  .swatch-meta .hex { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; color: var(--ink-3); }
  .swatch-meta .role { font-size: 12px; color: var(--ink-2); margin-top: 10px; line-height: 1.4; }

  .accent-rules { margin-top: 32px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .accent-rule { padding: 24px; border: 1px solid var(--rule-soft); border-radius: var(--radius-m); background: var(--paper); }
  .accent-rule h4 { margin: 0 0 8px; font-family: var(--sans); font-weight: 600; font-size: 16px; letter-spacing: -0.01em; }
  .accent-rule p { margin: 0; font-size: 13px; color: var(--ink-2); line-height: 1.5; }
  .accent-rule .demo { margin-bottom: 16px; height: 64px; border-radius: 8px; background: var(--paper-2); display: flex; align-items: center; justify-content: center; padding: 12px; font-size: 13px; }

  /* TYPE */
  .type-stack > * + * { margin-top: var(--s-7); padding-top: var(--s-7); border-top: 1px solid var(--rule-soft); }
  .type-row { display: grid; grid-template-columns: 200px 1fr 200px; gap: 32px; align-items: baseline; }
  .type-spec { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); line-height: 1.6; }
  .type-spec strong { color: var(--ink); display: block; font-weight: 500; }
  .type-sample { color: var(--ink); }

  .display-1 { font-family: var(--display); font-weight: 200; font-size: 100px; line-height: 0.98; letter-spacing: -0.04em; }
  .display-1 strong { font-weight: 600; }
  .display-2 { font-family: var(--display); font-weight: 300; font-size: 56px; line-height: 1.05; letter-spacing: -0.035em; }
  .heading-1 { font-family: var(--sans); font-weight: 600; font-size: 26px; line-height: 1.2; letter-spacing: -0.02em; }
  .heading-2 { font-family: var(--sans); font-weight: 500; font-size: 22px; line-height: 1.3; letter-spacing: -0.01em; }
  .body-l { font-size: clamp(16px, 1.6vw, 19px); line-height: 1.6; color: var(--ink-2); max-width: 60ch; }
  .body { font-size: clamp(14px, 1.3vw, 16px); line-height: 1.6; color: var(--ink-2); max-width: 64ch; }
  .caption { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); }

  /* SPACING */
  .space-row { display: grid; grid-template-columns: repeat(8, 1fr); gap: 24px; align-items: end; margin-bottom: 48px; }
  .space-block { display: flex; flex-direction: column; align-items: center; gap: 12px; }
  .space-block .bar { width: 100%; background: var(--ink); border-radius: 4px 4px 0 0; transition: transform 400ms var(--ease); transform-origin: bottom; }
  .space-block:hover .bar { transform: scaleY(1.1); }
  .space-block .lbl { font-family: var(--mono); font-size: 10px; letter-spacing: 0.06em; color: var(--ink-3); text-align: center; }
  .space-block .lbl strong { color: var(--ink); display: block; font-size: 11px; }

  .grid-demo { padding: 32px; background: var(--paper-2); border-radius: var(--radius-m); }
  .grid-12 { display: grid; grid-template-columns: repeat(12, 1fr); gap: 12px; }
  .grid-12 > div {
    height: 80px;
    background: var(--compat-accent-on-paper-bg);
    background: color-mix(in oklab, var(--accent) 14%, var(--paper));
    border: 1px solid var(--compat-accent-on-paper-border);
    border-color: color-mix(in oklab, var(--accent) 30%, var(--paper));
    border-radius: 4px; font-family: var(--mono); font-size: 11px; color: var(--accent); display: flex; align-items: center; justify-content: center;
  }

  /* COMPONENTS */
  .comp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
  .comp-card { padding: 32px; border: 1px solid var(--rule-soft); border-radius: var(--radius-l); background: var(--paper); transition: transform 400ms var(--ease), box-shadow 400ms var(--ease); }
  .comp-card:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -24px rgba(26, 35, 50, 0.18); }
  .comp-card > h3 { margin: 0 0 24px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); font-weight: 500; }
  .comp-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
  .comp-row:last-child { margin-bottom: 0; }

  .btn { font-family: var(--sans); font-weight: 500; font-size: 14px; letter-spacing: -0.005em; padding: 12px 22px; border-radius: 999px; border: 1px solid var(--ink); background: var(--ink); color: var(--paper); text-decoration: none; cursor: pointer; transition: all 320ms var(--ease); display: inline-flex; align-items: center; justify-content: center; gap: 10px; }
  .btn:hover { background: var(--accent); border-color: var(--accent); transform: translateY(-1px); }
  .btn .arrow { display: inline-block; transition: transform 320ms var(--ease); }
  .btn:hover .arrow { transform: translateX(3px); }
  .btn.ghost { background: transparent; color: var(--ink); border-color: var(--rule); }
  .btn.ghost:hover { background: var(--paper-2); border-color: var(--ink); color: var(--ink); transform: translateY(-1px); }
  .btn.text { background: transparent; border: 0; padding: 12px 0; color: var(--ink); border-bottom: 1px solid var(--ink); border-radius: 0; }
  .btn.text:hover { color: var(--accent); border-color: var(--accent); transform: none; }
  .btn.small { padding: 10px 18px; font-size: 13px; }

  .badge { display: inline-flex; align-items: center; gap: 6px; padding: 5px 12px; border-radius: 999px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; background: var(--paper-2); color: var(--ink-2); border: 1px solid var(--rule-soft); }
  .badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ink-3); }
  .badge.live .dot { background: var(--accent); animation: pulse 2.6s ease-in-out infinite; }
  .badge.solid { background: var(--ink); color: var(--paper); border-color: var(--ink); }
  .badge.badge-soft {
    padding: 4px 10px;
    font-size: 10px;
    letter-spacing: 0.06em;
    color: var(--ink-3);
    background: color-mix(in oklab, var(--paper-2) 62%, transparent);
    border-color: color-mix(in oklab, var(--rule-soft) 78%, transparent);
  }

  .field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
  .field label { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); }
  .field input, .field textarea {
    font-family: var(--sans); font-size: 15px; color: var(--ink);
    background: var(--paper); border: 1px solid var(--rule);
    border-radius: var(--radius-s); padding: 12px 14px; transition: all 240ms var(--ease);
  }
  .field input:focus, .field textarea:focus {
    outline: 0;
    border-color: var(--ink);
    box-shadow: 0 0 0 3px var(--compat-accent-focus-ring);
    box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 18%, transparent);
  }

  .pcard { padding: 0; overflow: hidden; }
  .pcard-img { aspect-ratio: 16 / 10; background: var(--paper-2); position: relative; overflow: hidden; }
  .pcard-img img {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    filter: grayscale(0.65) brightness(1.04) contrast(0.92);
    opacity: 0.78;
    mix-blend-mode: luminosity;
    transition: all 800ms var(--ease);
  }
  .pcard:hover .pcard-img img { 
    opacity: 0.92; 
    filter: grayscale(0.45) brightness(1.02) contrast(0.98); 
    mix-blend-mode: normal;
    transform: scale(1.03);
  }
  .pcard-img .placeholder {
    position: absolute; inset: 0;
    background-image: repeating-linear-gradient(135deg, transparent 0 14px, rgba(26, 35, 50, 0.04) 14px 15px);
    display: flex; align-items: center; justify-content: center; z-index: 1;
  }
  .pcard-img .placeholder span { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; color: var(--ink-3); text-transform: uppercase; padding: 6px 12px; background: var(--paper); border-radius: 999px; }
  /* Age-grade chart thumbnail: soft gradient plate + vignette (chart above optional stripe layer for hover scale).
     Outer inset: clamp() on wrap edges (tokens). Inner padding: clamp above 600px; 0 at ≤600px. */
  .pcard-img.pcard-chart-thumb {
    background: linear-gradient(168deg, var(--paper) 0%, var(--paper-2) 52%, var(--paper-3) 100%);
  }
  .pcard-img.pcard-chart-thumb .stripes {
    z-index: 1;
  }
  .pcard-img.pcard-chart-thumb::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.75),
      inset 0 -32px 72px -28px rgba(26, 35, 50, 0.045),
      inset 0 0 0 1px var(--rule-soft);
  }
  .pcard-img.pcard-chart-thumb .stripes,
  .pcard-img.pcard-chart-thumb .pcard-age-grade-chart-wrap {
    transition: transform 800ms var(--ease), filter 800ms var(--ease);
    transform-origin: center center;
  }
  .pcard:hover .pcard-img.pcard-chart-thumb .stripes,
  .pcard:hover .pcard-img.pcard-chart-thumb .pcard-age-grade-chart-wrap {
    transform: scale(1.03);
  }
  .pcard:hover .pcard-img.pcard-chart-thumb .pcard-age-grade-chart-wrap {
    filter: brightness(1.04);
  }
  .pcard-img.pcard-chart-thumb .pcard-age-grade-chart-wrap {
    position: absolute;
    inset: clamp(var(--s-2), 2.8vw, var(--s-4));
    display: flex;
    flex-direction: column;
    padding: clamp(var(--s-2), 2vw, var(--s-3));
    min-height: 0;
    z-index: 2;
  }
  @media (max-width: 600px) {
    .pcard-img.pcard-chart-thumb .pcard-age-grade-chart-wrap {
      padding: 0;
    }
  }
  .pcard-age-grade-chart-root {
    flex: 1;
    min-height: 0;
    width: 100%;
    position: relative;
  }
  .pcard-age-grade-chart-root svg {
    display: block;
    width: 100%;
    height: 100%;
  }
  .pcard-age-grade-chart-root .chart-subtitle {
    fill: var(--ink-3);
    font-family: var(--sans);
    font-size: 8px;
    font-weight: 400;
  }
  .pcard-age-grade-chart-root .chart-axis path,
  .pcard-age-grade-chart-root .chart-axis line {
    stroke: var(--rule);
  }
  .pcard-age-grade-chart-root .chart-axis text {
    fill: var(--ink-3);
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.06em;
  }
  .pcard-age-grade-chart-root .chart-axis-label {
    fill: var(--ink-2);
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }
  .pcard-age-grade-chart-root .series-grade path.series-line {
    fill: none;
    stroke-width: 2.85;
    stroke-opacity: 0.52;
    stroke-linecap: round;
    stroke-linejoin: round;
  }
  .pcard-age-grade-chart-root .series-grade circle.series-dot {
    stroke: var(--paper);
    stroke-width: 1.25;
    fill-opacity: 0.92;
  }
  .pcard-age-grade-chart-root .series-grade[data-grade="1"] path.series-line { stroke: var(--chart-pcard-grade-1); }
  .pcard-age-grade-chart-root .series-grade[data-grade="1"] circle.series-dot { fill: var(--chart-pcard-grade-1); }
  .pcard-age-grade-chart-root .series-grade[data-grade="2"] path.series-line { stroke: var(--chart-pcard-grade-2); }
  .pcard-age-grade-chart-root .series-grade[data-grade="2"] circle.series-dot { fill: var(--chart-pcard-grade-2); }
  .pcard-age-grade-chart-root .series-grade[data-grade="3"] path.series-line { stroke: var(--chart-pcard-grade-3); }
  .pcard-age-grade-chart-root .series-grade[data-grade="3"] circle.series-dot { fill: var(--chart-pcard-grade-3); }
  .pcard-age-grade-chart-root .series-grade[data-grade="4"] path.series-line { stroke: var(--chart-pcard-grade-4); }
  .pcard-age-grade-chart-root .series-grade[data-grade="4"] circle.series-dot { fill: var(--chart-pcard-grade-4); }
  .pcard-age-grade-chart-root .series-grade[data-grade="5"] path.series-line { stroke: var(--chart-pcard-grade-5); }
  .pcard-age-grade-chart-root .series-grade[data-grade="5"] circle.series-dot { fill: var(--chart-pcard-grade-5); }
  .pcard-age-grade-chart-root .series-grade[data-grade="6"] path.series-line { stroke: var(--chart-pcard-grade-6); }
  .pcard-age-grade-chart-root .series-grade[data-grade="6"] circle.series-dot { fill: var(--chart-pcard-grade-6); }
  .pcard-age-grade-chart-root .series-grade[data-grade="7"] path.series-line { stroke: var(--chart-pcard-grade-7); }
  .pcard-age-grade-chart-root .series-grade[data-grade="7"] circle.series-dot { fill: var(--chart-pcard-grade-7); }
  .pcard-age-grade-chart-root .series-grade[data-grade="8"] path.series-line { stroke: var(--chart-pcard-grade-8); }
  .pcard-age-grade-chart-root .series-grade[data-grade="8"] circle.series-dot { fill: var(--chart-pcard-grade-8); }
  .pcard-age-grade-chart-root .series-expected path.series-line {
    fill: none;
    stroke: var(--accent);
    stroke-width: 3;
    stroke-opacity: 0.72;
    stroke-dasharray: 5 12;
    stroke-linecap: round;
    stroke-linejoin: round;
  }
  .pcard-age-grade-chart-root .series-expected circle.series-dot {
    fill: var(--accent);
    stroke: var(--paper);
    stroke-width: 1.5;
  }
  .pcard-age-grade-chart-root .series-expected-label {
    fill: var(--accent);
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.04em;
    pointer-events: none;
  }
  .pcard-age-grade-chart-root .series-hit {
    fill: transparent;
    cursor: crosshair;
  }
  .pcard-age-grade-chart-root .legend-grade-ramp {
    pointer-events: none;
  }
  .pcard-age-grade-chart-root .legend-grade-ramp-bg {
    fill: var(--paper);
    opacity: 0.94;
    stroke: var(--rule-soft);
    stroke-width: 1;
  }
  .pcard-age-grade-chart-root .legend-grade-ramp-bar {
    stroke: var(--rule-soft);
    stroke-width: 1;
  }
  .pcard-age-grade-chart-root .legend-item {
    fill: var(--ink-2);
    font-family: var(--mono);
    font-size: 8px;
    letter-spacing: 0.04em;
  }
  .pcard-age-grade-chart-tooltip {
    position: absolute;
    z-index: 3;
    pointer-events: none;
    max-width: min(300px, calc(100% - 16px));
    padding: var(--s-2) var(--s-3);
    border-radius: var(--radius-s);
    border: 1px solid var(--rule-soft);
    background: var(--paper);
    box-shadow: 0 4px 16px rgba(26, 35, 50, 0.08);
    font-family: var(--mono);
    font-size: 10px;
    line-height: 1.35;
    color: var(--ink);
    letter-spacing: 0.04em;
  }
  .pcard-age-grade-chart-tooltip strong {
    font-weight: 600;
    color: var(--ink);
  }
  .pcard-age-grade-chart-wrap[data-chart-error="1"]::after {
    content: "Chart unavailable";
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-3);
    background: var(--paper-2);
  }
  /* Learning gradient hero thumb (blog/learning-gradient.html) — mirror age-grade chart card */
  .pcard-img.pcard-chart-thumb .pcard-learning-gradient-chart-wrap {
    position: absolute;
    inset: clamp(var(--s-2), 2.8vw, var(--s-4));
    display: flex;
    flex-direction: column;
    padding: clamp(var(--s-2), 2vw, var(--s-3));
    min-height: 0;
    z-index: 2;
  }
  .pcard-learning-gradient-chart-root {
    flex: 1;
    min-height: 0;
    width: 100%;
    position: relative;
  }
  .pcard-learning-gradient-chart-root svg {
    display: block;
    width: 100%;
    height: 100%;
  }
  .pcard-img.pcard-chart-thumb .stripes,
  .pcard-img.pcard-chart-thumb .pcard-learning-gradient-chart-wrap,
  .pcard-img.pcard-chart-thumb .pcard-decoding-chart-wrap {
    transition: transform 800ms var(--ease), filter 800ms var(--ease);
    transform-origin: center center;
  }
  .pcard:hover .pcard-img.pcard-chart-thumb .stripes,
  .pcard:hover .pcard-img.pcard-chart-thumb .pcard-learning-gradient-chart-wrap,
  .pcard:hover .pcard-img.pcard-chart-thumb .pcard-decoding-chart-wrap {
    transform: scale(1.03);
  }
  .pcard:hover .pcard-img.pcard-chart-thumb .pcard-learning-gradient-chart-wrap,
  .pcard:hover .pcard-img.pcard-chart-thumb .pcard-decoding-chart-wrap {
    filter: brightness(1.04);
  }
  .pcard-learning-gradient-chart-root .chart-axis path,
  .pcard-learning-gradient-chart-root .chart-axis line {
    stroke: var(--rule);
  }
  .pcard-learning-gradient-chart-root .chart-axis text {
    fill: var(--ink-3);
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.06em;
  }
  .pcard-learning-gradient-chart-root .chart-axis-label {
    fill: var(--ink-2);
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }
  .pcard-learning-gradient-chart-tooltip {
    position: absolute;
    z-index: 3;
    pointer-events: none;
    max-width: min(300px, calc(100% - 16px));
    padding: var(--s-2) var(--s-3);
    border-radius: var(--radius-s);
    border: 1px solid var(--rule-soft);
    background: var(--paper);
    box-shadow: 0 4px 16px rgba(26, 35, 50, 0.08);
    font-family: var(--mono);
    font-size: 10px;
    line-height: 1.35;
    color: var(--ink);
    letter-spacing: 0.04em;
  }
  .pcard-learning-gradient-chart-tooltip strong {
    font-weight: 600;
    color: var(--ink);
  }
  .pcard-learning-gradient-chart-wrap[data-chart-error="1"]::after {
    content: "Chart unavailable";
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-3);
    background: var(--paper-2);
  }
  .pcard-body { padding: 24px 28px 28px; }
  .pcard-body .pcard-tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
  }
  .pcard-body .meta { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
  .pcard-body h3 { margin: 0 0 8px; font-family: var(--sans); font-weight: 600; font-size: 22px; letter-spacing: -0.02em; line-height: 1.2; }
  .pcard-body p { margin: 0; font-size: 14px; color: var(--ink-2); line-height: 1.55; }

  /* DATA VIZ */
  .viz-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 16px; }
  .viz-card { background: var(--paper); border: 1px solid var(--rule-soft); border-radius: var(--radius-l); padding: 24px; min-height: 280px; display: flex; flex-direction: column; }
  .viz-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 18px; }
  .viz-head .ttl { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); }
  .viz-head .val { font-family: var(--sans); font-weight: 300; font-size: 28px; letter-spacing: -0.02em; }
  .viz-canvas { flex: 1; position: relative; }
  .viz-canvas svg { width: 100%; height: 100%; display: block; }
  .viz-legend { display: flex; gap: 16px; margin-top: 14px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); }
  .viz-legend .key { display: inline-flex; align-items: center; gap: 6px; }
  .viz-legend .swatch-mini { width: 10px; height: 2px; background: var(--ink); }
  .viz-legend .swatch-mini.accent { background: var(--accent); }

  .viz-placeholders { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 16px; }
  .viz-placeholder {
    aspect-ratio: 4 / 3;
    background: var(--paper-2);
    border: 1px solid var(--rule-soft);
    border-radius: var(--radius-m);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 320ms var(--ease);
  }
  .viz-placeholder:hover { background: var(--paper-3); }
  .viz-placeholder::before { content: ""; position: absolute; inset: 0; background-image: repeating-linear-gradient(135deg, transparent 0 14px, rgba(26, 35, 50, 0.04) 14px 15px); }
  .viz-placeholder span { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; color: var(--ink-3); text-transform: uppercase; padding: 5px 10px; background: var(--paper); border-radius: 999px; border: 1px solid var(--rule-soft); position: relative; z-index: 1; }

  .viz-palette { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; margin-top: 24px; }
  .viz-palette .v { aspect-ratio: 1; border-radius: 6px; display: flex; align-items: end; padding: 8px; font-family: var(--mono); font-size: 9px; color: var(--paper); letter-spacing: 0.04em; }

  /* ICONS */
  .icon-grid { display: grid; grid-template-columns: repeat(8, 1fr); gap: 1px; background: var(--rule-soft); border: 1px solid var(--rule-soft); border-radius: var(--radius-m); overflow: hidden; }
  .icon-cell { background: var(--paper); aspect-ratio: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; transition: background 320ms var(--ease); }
  .icon-cell:hover { background: var(--paper-2); }
  .icon-cell svg { width: 28px; height: 28px; stroke: var(--ink); fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; transition: transform 400ms var(--ease); }
  .icon-cell:hover svg { transform: scale(1.08); }
  .icon-cell .nm { font-family: var(--mono); font-size: 10px; color: var(--ink-3); letter-spacing: 0.04em; }
  .icon-rules { margin-top: 24px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
  .icon-rule { padding: 18px; border: 1px solid var(--rule-soft); border-radius: var(--radius-m); }
  .icon-rule .lbl { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 6px; }
  .icon-rule .val { font-family: var(--sans); font-size: 20px; font-weight: 500; letter-spacing: -0.01em; }

  /* MOTION */
  .motion-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .motion-card { padding: 28px; border: 1px solid var(--rule-soft); border-radius: var(--radius-l); background: var(--paper); }
  .motion-card h4 { font-family: var(--sans); font-weight: 600; font-size: 18px; letter-spacing: -0.015em; margin: 0 0 6px; }
  .motion-card .sub { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 22px; }
  .motion-card .demo { height: 80px; background: var(--paper-2); border-radius: var(--radius-s); position: relative; overflow: hidden; cursor: pointer; }
  .motion-card .ball { position: absolute; top: 50%; transform: translateY(-50%); left: 12px; width: 28px; height: 28px; border-radius: 50%; background: var(--ink); }
  .motion-card .demo.active .ball { animation: motionDemo var(--dur, 600ms) var(--ease-curve, ease) forwards; }
  @keyframes motionDemo { to { left: calc(100% - 40px); } }
  .motion-card p { font-size: 13px; color: var(--ink-2); margin: 16px 0 0; line-height: 1.5; }

  /* ORBIT */
  .orbit-wrap {
    position: relative;
    aspect-ratio: 1 / 1;
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .orbit-wrap::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, var(--accent-soft) 0%, transparent 55%);
    opacity: 0.5;
  }
  .orbit-ring {
    position: absolute;
    border: 1px dashed var(--rule);
    border-radius: 50%;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
  }
  .orbit-ring.r1 { width: 36%; height: 36%; animation: spin 38s linear infinite; }
  .orbit-ring.r2 { width: 64%; height: 64%; animation: spin 64s linear infinite reverse; }
  .orbit-ring.r3 { width: 92%; height: 92%; animation: spin 96s linear infinite; }
  @keyframes spin { to { transform: translate(-50%, -50%) rotate(360deg); } }
  @keyframes counterSpin { to { transform: rotate(-360deg); } }

  .orbit-core {
    position: relative;
    z-index: 5;
    width: 140px; height: 140px;
    border-radius: 50%;
    background: var(--paper);
    border: 1px solid var(--rule);
    display: grid; place-items: center;
    box-shadow: 0 12px 36px -12px rgba(26, 35, 50, 0.18), inset 0 0 0 6px var(--paper-2);
  }
  .orbit-core .core-mono {
    font-family: var(--sans);
    font-weight: 200;
    font-size: 46px;
    letter-spacing: -0.04em;
    color: var(--ink);
    line-height: 1;
  }
  .orbit-core .core-mono .accent { color: var(--accent); font-weight: 500; }
  .orbit-core .core-label {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translate(-50%, 18px);
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-3);
    white-space: nowrap;
  }
  .orbit-core .pulse {
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 1px solid var(--accent);
    opacity: 0;
    animation: orbitPulse 4.5s var(--ease) infinite;
  }
  @keyframes orbitPulse {
    0% { transform: scale(1); opacity: 0.45; }
    100% { transform: scale(1.7); opacity: 0; }
  }

  .tech-chip {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--paper);
    border: 1px solid var(--rule);
    box-shadow: 0 6px 18px -6px rgba(26, 35, 50, 0.14);
    display: grid;
    place-items: center;
    transition: transform 360ms var(--ease), border-color 280ms var(--ease), box-shadow 360ms var(--ease);
    position: relative;
    cursor: default;
  }
  .tech-chip .custom-icon-wrap {
    position: relative;
    width: 34px; height: 34px;
    display: flex; align-items: center; justify-content: center;
  }
  .tech-chip .base-img {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    transition: opacity 800ms var(--ease);
  }
  .tech-chip .base-img.full-color {
    opacity: 0;
  }
  .tech-chip .base-img.filtered-layer {
    opacity: 1;
  }
  .tech-chip .base-img.mono-ink {
    filter: brightness(0) saturate(100%) invert(11%) sepia(18%) saturate(1636%) hue-rotate(181deg) brightness(97%) contrast(92%);
  }
  .tech-chip .base-img.keep-white {
    filter: grayscale(100%) contrast(1.2) brightness(0.85);
  }
  .tech-chip:hover .base-img.full-color {
    opacity: 1;
  }
  .tech-chip:hover .base-img.filtered-layer {
    opacity: 0;
  }
  .tech-chip i, .tech-chip i::before, .tech-chip i * {
    transition: color 800ms var(--ease), fill 800ms var(--ease);
  }
  .tech-chip:hover {
    border-color: var(--accent);
    transform: scale(1.12);
    box-shadow: 0 12px 28px -8px rgba(28, 171, 226, 0.35);
  }
  .tech-chip .chip-label {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    color: var(--ink-2);
    background: var(--paper);
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid var(--rule-soft);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 240ms var(--ease);
  }
  .tech-chip:hover .chip-label { opacity: 1; }
  /* outer ring chips slightly larger, inner slightly smaller */
  .tech-chip i { font-size: 34px; }
  .r1 .tech-chip { width: 56px; height: 56px; }
  .r1 .tech-chip .custom-icon-wrap { width: 26px; height: 26px; }
  .r1 .tech-chip i { font-size: 26px; }
  .r3 .tech-chip { width: 66px; height: 66px; }
  .r3 .tech-chip .custom-icon-wrap { width: 30px; height: 30px; }
  .r3 .tech-chip i { font-size: 30px; }
  .orbit-arm, .orbit-cap, .orbit-counter { pointer-events: none; }
  .tech-chip { pointer-events: auto; }
  /* Raise the hovered ring above sibling rings so the tooltip isn't clipped by other rings.
     Classes orbit-ring--lift / orbit-arm--lift are toggled from main.js for browsers without :has(). */
  .orbit-ring:has(.tech-chip:hover),
  .orbit-ring.orbit-ring--lift { z-index: 100; }
  .orbit-arm:has(.tech-chip:hover),
  .orbit-arm.orbit-arm--lift { z-index: 10; }

  .orbit-legend {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px solid var(--rule-soft);
  }
  .orbit-legend h4 {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-3);
    margin: 0 0 14px;
    font-weight: 500;
  }
  .orbit-legend ul { list-style: none; padding: 0; margin: 0; }
  .orbit-legend li { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--rule-soft); font-size: 14px; color: var(--ink); }
  .orbit-legend li:last-child { border-bottom: 0; }
  .orbit-legend li span { font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.04em; }

  /* PHOTO */
  .photo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .photo-card { aspect-ratio: 4 / 5; border-radius: var(--radius-l); overflow: hidden; position: relative; background: var(--paper-2); border: 1px solid var(--rule-soft); transition: transform 500ms var(--ease); }
  .photo-card:hover { transform: translateY(-3px); }
  .photo-placeholder { position: absolute; inset: 0; background-image: repeating-linear-gradient(135deg, transparent 0 14px, rgba(26, 35, 50, 0.05) 14px 15px); }
  .photo-img {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    filter: grayscale(0.55) contrast(0.94) brightness(1.02);
    opacity: 0.88;
    transition: filter 700ms var(--ease), opacity 700ms var(--ease), transform 700ms var(--ease);
  }
  .photo-card:hover .photo-img { filter: grayscale(0.2) contrast(0.98); opacity: 1; transform: scale(1.02); }
  .photo-veil {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(244,245,247,0.0) 50%, rgba(26,35,50,0.18) 100%);
    pointer-events: none;
  }
  .photo-card .tag { z-index: 2; }
  .photo-card .caption-bottom { z-index: 2; color: var(--paper); }
  .photo-card .caption-bottom .ttl { color: var(--paper); }
  .photo-card .caption-bottom .num { color: rgba(255,255,255,0.7); }
  .photo-card .tag { position: absolute; top: 16px; left: 16px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-2); background: var(--paper); padding: 5px 10px; border-radius: 999px; border: 1px solid var(--rule-soft); }
  .photo-card .caption-bottom { position: absolute; bottom: 16px; left: 16px; right: 16px; display: flex; justify-content: space-between; align-items: end; }
  .photo-card .caption-bottom .ttl { font-family: var(--sans); font-size: 16px; font-weight: 500; letter-spacing: -0.01em; line-height: 1.25; max-width: 80%; }
  .photo-card .caption-bottom .num { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; color: var(--ink-3); }

  footer { padding: 64px 0 48px; color: var(--ink-3); font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; display: flex; justify-content: space-between; }
  footer span { color: var(--ink); }

  .hero h1 .ch { display: inline-block; opacity: 0; transform: translateY(20px); animation: letterIn 1100ms var(--ease) forwards; }
  @keyframes letterIn { to { opacity: 1; transform: none; } }

/* ─── RESPONSIVE LAYOUT HELPERS ──────────────────────────────────────────────
   Base styles for classes that replace inline style="" attributes.
   Must come BEFORE the responsive media queries so breakpoint rules can override.
   ─────────────────────────────────────────────────────────────────────────── */

/* Topbar balance spacer (replaces style="width: 100px;") */
.topbar-spacer { width: 100px; flex-shrink: 0; }

/* Experience timeline */
.timeline { margin-top: var(--s-7); max-width: 800px; position: relative; }
.timeline-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 32px;
  padding-bottom: var(--s-7);
  border-left: 1px solid var(--rule);
  padding-left: 32px;
  position: relative;
}
.timeline-row.last { padding-bottom: 0; }
.timeline-marker {
  position: absolute;
  left: -4px; top: 0;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--rule);
}
.timeline-marker.active {
  left: -5px;
  width: 9px; height: 9px;
  background: var(--paper);
  border: 2px solid var(--accent);
}
/* Single accent dot that travels marker-to-marker down the timeline */
.timeline-dot {
  position: absolute;
  left: 0; top: 0;
  width: 9px; height: 9px;
  margin: -4.5px 0 0 -4.5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  opacity: 0;
  pointer-events: none;
  z-index: 2;
  will-change: transform;
  animation: timelineDotPulse 2600ms var(--ease-soft) infinite;
}
@keyframes timelineDotPulse {
  0%, 100% { box-shadow: 0 0 0 2px var(--accent-soft); }
  50%      { box-shadow: 0 0 0 4px var(--accent-soft); }
}
.timeline-meta { }
.timeline-meta .org { font-weight: 500; margin-top: 4px; }
.timeline-content { }
.timeline-content .heading-2 { margin-top: 0; margin-bottom: 8px; }
.timeline-content .body { margin-bottom: 16px; }
.timeline-content .body:last-child { margin-bottom: 0; }

/* Collaborators strip (replaces inline flex + onmouseover handlers) */
.collab-strip {
  display: flex;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-top: 56px;
}
.collab-logo {
  height: clamp(48px, 9vw, 110px);
  filter: grayscale(1) opacity(0.7);
  mix-blend-mode: multiply;
  transition: filter 0.3s var(--ease);
}
.collab-logo:hover { filter: grayscale(0) opacity(1); }
/* Per-logo scale overrides */
.collab-logo.unicef  { height: clamp(60px, 11vw, 140px); }
.collab-logo.who     { height: clamp(56px, 10vw, 130px); }
.collab-logo.ibtci   { height: clamp(44px, 7vw, 90px); }

/* Contact action buttons */
.contact-actions {
  display: flex;
  gap: 16px;
  margin-top: 24px;
  flex-wrap: wrap;
}

/* Footer third column */
.footer-back { text-align: right; }

/* About section heading spacing */
.about-heading { margin-bottom: 24px; }

  @media (max-width: 1024px) {
    .palette, .viz-grid, .motion-grid, .photo-grid, .accent-rules, .icon-rules, .viz-placeholders { grid-template-columns: 1fr 1fr; }
    .logo-grid { grid-template-columns: 1fr; }
    .icon-grid { grid-template-columns: repeat(4, 1fr); }
    .section-head { grid-template-columns: 1fr; gap: 16px; }
    .hero-grid { grid-template-columns: 1fr; }
    /* width: 100% fills the 1fr cell so max-width has something to cap against;
       all portrait children are absolutely positioned so intrinsic width = 0 */
    .hero-portrait { width: 100%; max-width: 480px; margin: 32px auto 0; }
    .hero-meta { grid-template-columns: 1fr 1fr; }
    .comp-grid { grid-template-columns: 1fr; }
    .type-row { grid-template-columns: 1fr; }
    /* Orbit — shrink max-width on tablets */
    .orbit-wrap { max-width: 600px; }
  }

  /* ── 768px — Tablet portrait / large phone landscape ── */
  @media (max-width: 768px) {
    /* Topbar: hide balance spacer so nav has room */
    .topbar-spacer { display: none; }

    /* Hero: stack portrait below content, constrain portrait size */
    .hero-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: clamp(48px, 12vw, 80px); }
    .hero-portrait { width: 100%; max-width: 340px; margin: 32px auto 0; }

    /* Orbit — cap at 480px on tablet */
    .orbit-wrap { max-width: 480px; }
  }

  /* ── 600px — Phones in portrait ── */
  @media (max-width: 600px) {
    /* Topbar: 2-row stack */
    .topbar-inner {
      flex-direction: column;
      align-items: flex-start;
      gap: 10px;
      padding-top: 12px;
      padding-bottom: 12px;
    }
    .topbar nav { gap: 16px; flex-wrap: wrap; }
    .topbar nav a { padding: 6px 4px; margin: -6px -4px; }

    /* Hero */
    .hero { padding: 40px 0 48px; }
    .hero h1 { font-size: clamp(44px, 13vw, 72px); margin-bottom: 20px; }
    .hero-lede { font-size: 16px; }
    .hero-portrait { width: 100%; max-width: 240px; margin: 16px auto 0; }
    .hero-meta { margin-top: 40px; }
    /* Hide decorative chart on small screens — too cluttered */
    .hero-bg-chart { display: none; }

    /* Sections */
    .section-head { margin-bottom: var(--s-6); }

    /* Timeline: collapse to 1-column */
    .timeline-row { grid-template-columns: 1fr; gap: 6px; padding-left: 24px; padding-bottom: var(--s-6); }
    .timeline-row.last { padding-bottom: 0; }
    .timeline-meta { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }

    /* Collaborators: tighter wrap, boost logo sizes (clamp minimums too small at narrow vp) */
    .collab-strip { gap: 16px; margin-top: 32px; flex-wrap: wrap; }
    .collab-logo { height: 76px; }
    .collab-logo.unicef { height: 96px; }
    .collab-logo.who { height: 88px; }
    .collab-logo.ibtci { height: 68px; }

    /* Orbit: scale down to fit narrow screens, clip any ring-edge bleed */
    .orbit-wrap { max-width: 100%; overflow: hidden; }
    /* Core: shrink so r1 chips aren't hidden behind it; hide text label at this size */
    .orbit-core { width: 56px; height: 56px; }
    .orbit-core .core-mono { font-size: 18px; }
    .orbit-core .core-label { display: none; }
    /* Shrink chip sizes proportionally */
    .tech-chip { width: 42px; height: 42px; }
    .tech-chip i { font-size: 22px; }
    .tech-chip .custom-icon-wrap { width: 20px; height: 20px; }
    .r1 .tech-chip { width: 36px; height: 36px; }
    .r1 .tech-chip i { font-size: 18px; }
    .r1 .tech-chip .custom-icon-wrap { width: 16px; height: 16px; }
    .r3 .tech-chip { width: 42px; height: 42px; }
    .r3 .tech-chip i { font-size: 22px; }
    .r3 .tech-chip .custom-icon-wrap { width: 20px; height: 20px; }

    /* Contact actions: stack full width */
    .contact-actions { flex-direction: column; }
    .contact-actions .btn { width: 100%; justify-content: center; }

    /* Footer: stack centered */
    .footer-main { flex-direction: column; align-items: center; gap: 12px; text-align: center; padding: 32px clamp(16px, 4vw, 32px); }
    .footer-back { text-align: center; }

    /* Section separators: reduce height on mobile */
    .sep { height: 18px !important; top: -9px !important; }
  }

  /* ── 380px — iPhone SE / small Androids ── */
  @media (max-width: 380px) {
    .topbar nav { gap: 10px; }
    .topbar nav a { font-size: 11px; }
    .mark-wordmark-small { font-size: 18px; }
    .hero h1 { font-size: clamp(40px, 14vw, 60px); }
    .section-title { font-size: clamp(26px, 8vw, 40px); }
    .orbit-wrap { max-width: calc(100vw - 32px); }
  }

/* PREMIUM BLOG STYLES */
.blog-hero-wrap {
  padding: 80px 32px 64px;
  border-bottom: 1px solid var(--rule-soft);
  margin-bottom: 64px;
  background: var(--paper);
}
.blog-hero-grid {
  max-width: 1216px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: center;
}
.blog-hero-content {
  position: relative;
  z-index: 2;
}
.blog-hero-content h1 {
  font-family: var(--display); font-weight: 200; font-size: clamp(40px, 4vw, 64px);
  line-height: 1.05; letter-spacing: -0.04em; margin: 0 0 24px; color: var(--ink);
}
.blog-hero-content h1 .second { font-weight: 600; display: block; }

.blog-meta-tags {
  display: flex; gap: 12px; margin-bottom: 32px; flex-wrap: wrap; align-items: center;
}
.blog-hero-visual {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--rule-soft);
  box-shadow: 0 24px 64px -16px rgba(26, 35, 50, 0.15);
  background: var(--paper-2);
}
.blog-hero-visual img { 
  width: 100%; height: 100%; object-fit: cover; display: block; 
  filter: grayscale(0.65) brightness(1.04) contrast(0.92);
  opacity: 0.78;
  mix-blend-mode: luminosity;
  transition: all 800ms var(--ease);
}
.blog-hero-visual:hover img {
  opacity: 0.92; 
  filter: grayscale(0.45) brightness(1.02) contrast(0.98); 
  mix-blend-mode: normal;
}
.blog-hero-visual::after {
  content: ""; position: absolute; inset: 0;
  border-radius: var(--radius-l);
  border: 1px solid rgba(255,255,255,0.1); /* inner stroke */
  pointer-events: none;
}

.blog-hero-visual.blog-hero-visual-chart .pcard-img.pcard-chart-thumb {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  aspect-ratio: unset;
  border-radius: inherit;
}
.blog-hero-visual.blog-hero-visual-chart .pcard-img.pcard-chart-thumb::before {
  border-radius: inherit;
}
.blog-hero-visual.blog-hero-visual-chart .stripes {
  border-radius: inherit;
}
.blog-hero-visual.blog-hero-visual-chart .pcard-img.pcard-chart-thumb .stripes,
.blog-hero-visual.blog-hero-visual-chart .pcard-img.pcard-chart-thumb .pcard-age-grade-chart-wrap,
.blog-hero-visual.blog-hero-visual-chart .pcard-img.pcard-chart-thumb .pcard-learning-gradient-chart-wrap,
.blog-hero-visual.blog-hero-visual-chart .pcard-img.pcard-chart-thumb .pcard-decoding-chart-wrap {
  transition: transform 800ms var(--ease), filter 800ms var(--ease);
  transform-origin: center center;
}
.blog-hero-visual.blog-hero-visual-chart:hover .pcard-img.pcard-chart-thumb .stripes,
.blog-hero-visual.blog-hero-visual-chart:hover .pcard-img.pcard-chart-thumb .pcard-age-grade-chart-wrap,
.blog-hero-visual.blog-hero-visual-chart:hover .pcard-img.pcard-chart-thumb .pcard-learning-gradient-chart-wrap,
.blog-hero-visual.blog-hero-visual-chart:hover .pcard-img.pcard-chart-thumb .pcard-decoding-chart-wrap {
  transform: scale(1.03);
}
.blog-hero-visual.blog-hero-visual-chart:hover .pcard-img.pcard-chart-thumb .pcard-age-grade-chart-wrap,
.blog-hero-visual.blog-hero-visual-chart:hover .pcard-img.pcard-chart-thumb .pcard-learning-gradient-chart-wrap,
.blog-hero-visual.blog-hero-visual-chart:hover .pcard-img.pcard-chart-thumb .pcard-decoding-chart-wrap {
  filter: brightness(1.04);
}

.blog-main {
  background: var(--paper);
  padding-left: clamp(16px, 4vw, 32px); padding-right: clamp(16px, 4vw, 32px);
}

.blog-article {
  max-width: 720px; margin: 0 auto; padding: 0 0 96px;
  font-family: var(--sans); color: var(--ink-2); line-height: 1.7; font-size: clamp(15px, 1.4vw, 17px);
}
.blog-article h2 {
  font-family: var(--sans); font-weight: 600; font-size: clamp(20px, 2vw, 26px); margin: 64px 0 24px;
  color: var(--ink); letter-spacing: -0.02em;
  display: flex; align-items: center; gap: 16px;
}
.blog-article h2::before {
  content: ""; width: 32px; height: 1px; background: var(--accent); display: block;
}
.blog-article h3 {
  font-family: var(--sans); font-weight: 500; font-size: clamp(17px, 1.8vw, 20px); margin: 40px 0 16px;
  color: var(--ink); letter-spacing: -0.01em;
}
.blog-article p { margin-bottom: 28px; }
.blog-article .lede {
  font-size: clamp(17px, 1.9vw, 20px); line-height: 1.6; color: var(--ink); font-weight: 300; margin-bottom: 48px;
}
/* Body links: Identity slate-blue accent, hairline underline (see assets/Identity System.html accent rules) */
.blog-article a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(28, 171, 226, 0.42);
  border-bottom: 1px solid color-mix(in oklab, var(--accent) 50%, transparent);
  transition: color 240ms var(--ease), border-color 240ms var(--ease);
}
.blog-article a:hover {
  color: var(--ink);
  border-bottom-color: var(--accent);
}
.blog-article a:visited {
  color: color-mix(in oklab, var(--accent) 72%, var(--ink));
  border-bottom-color: color-mix(in oklab, var(--accent) 35%, transparent);
}
.blog-article a:visited:hover {
  color: var(--ink);
  border-bottom-color: color-mix(in oklab, var(--accent) 72%, var(--ink));
}

.blog-figure {
  /* Break out of the 720px article column only as far as side gutters allow
     (avoids horizontal scroll between ~880px–920px viewports). */
  --blog-main-pad: 64px;
  --blog-content-w: calc(100vw - var(--blog-main-pad));
  --blog-article-w: min(720px, var(--blog-content-w));
  --blog-figure-pull: min(64px, max(0px, calc((var(--blog-content-w) - var(--blog-article-w)) / 2)));
  margin-top: 48px;
  margin-bottom: 48px;
  margin-left: calc(-1 * var(--blog-figure-pull));
  margin-right: calc(-1 * var(--blog-figure-pull));
  background: var(--paper-2); padding: 32px; border-radius: var(--radius-l);
  border: 1px solid var(--rule-soft);
  text-align: center;
}
.blog-figure img {
  max-width: 100%; width: auto; max-height: 700px; border-radius: var(--radius-s); box-shadow: 0 12px 32px -12px rgba(0,0,0,0.1); display: block; margin: 0 auto;
}
.blog-figure figcaption {
  margin-top: 24px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em;
  color: var(--ink-3); text-transform: uppercase; text-align: center;
}

.blog-code-wrap {
  margin: 40px -32px;
  border-radius: var(--radius-m); overflow: hidden;
  border: 1px solid var(--rule-soft);
  box-shadow: 0 12px 32px -16px rgba(0,0,0,0.1);
}
.blog-code-header {
  background: #21252b; padding: 12px 16px;
  display: flex; gap: 8px; align-items: center;
  border-bottom: 1px solid rgba(0,0,0,0.25);
}
.blog-code-header .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--rule); }
.blog-code-header .dot.r { background: #FF5F56; }
.blog-code-header .dot.y { background: #FFBD2E; }
.blog-code-header .dot.g { background: #27C93F; }
.blog-code-header .lang { margin-left: auto; font-family: var(--mono); font-size: 11px; font-weight: 500; color: #5c6370; }
.blog-article pre { margin: 0; padding: 24px; background: #282c34 !important; font-size: 15px; line-height: 1.6; }
.blog-article code { overflow-wrap: break-word; word-break: break-all; }

  /* REFERENCES */
  .blog-references { border-top: 1px solid var(--rule-soft); padding-top: 48px; margin-top: 64px; }
  .blog-ref-item { padding-left: 24px; text-indent: -24px; margin-bottom: 16px; font-size: 14px; line-height: 1.6; }

  /* FOOTER */
  .footer-main { margin: 0 auto; max-width: 1280px; padding: 48px 32px; display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--rule-soft); font-size: 14px; color: var(--ink-3); }
  .footer-main a { color: inherit; text-decoration: none; }
  .footer-main a:hover { color: var(--accent); }
.blog-article blockquote {
  border-left: 4px solid var(--accent); padding-left: 24px; margin: 40px 0; font-style: italic; color: var(--ink); font-size: clamp(17px, 1.8vw, 20px);
}

@media (max-width: 880px) {
  .blog-figure { margin-top: 40px; margin-bottom: 40px; padding: 16px; }
  .blog-code-wrap { margin: 40px 0; }
  .blog-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .blog-hero-content h1 { font-size: clamp(26px, 6vw, 36px); }
}


/* ─── BLOG UTILITIES ────────────────────────────────────────────────────────*/
/* Caption below code blocks in blog articles */
.code-caption {
  text-align: center; font-style: italic; font-size: 14px;
  margin-top: 16px; color: var(--ink-3);
}
/* Horizontal rule divider inside blog articles */
.blog-divider {
  margin: 48px 0; border: none; border-top: 1px solid var(--rule-soft);
}

/* ─── BLOG D3 MOUNTS ────────────────────────────────────────────────────────*/
.d3-mount {
  width: 100%; min-height: 280px;
  background: var(--paper); border-radius: var(--radius-m);
  border: 1px solid var(--rule-soft);
  padding: 16px; box-sizing: border-box;
  display: block;
}
/* World map: reserve minimum while data loads; intrinsic height from SVG thereafter */
.d3-mount-map {
  min-height: 440px;
  padding: 8px;
}
#country-map.country-map-mount.d3-mount-map {
  min-height: 275px;
}
#country-map.d3-mount.d3-mount-map,
#hpv-africa-map.d3-mount.d3-mount-map {
  padding: var(--s-1);
}
/* Africa map is taller than wide — reserve more vertical space while loading. */
#hpv-africa-map.country-map-mount.d3-mount-map { min-height: 520px; }
@media (max-width: 820px) {
  .d3-mount-map { min-height: 340px; }
  #country-map.country-map-mount.d3-mount-map { min-height: 245px; }
  #hpv-africa-map.country-map-mount.d3-mount-map { min-height: 460px; }
}
@media (max-width: 600px) {
  .d3-mount-map { min-height: 300px; }
  #country-map.country-map-mount.d3-mount-map { min-height: 220px; }
  #hpv-africa-map.country-map-mount.d3-mount-map { min-height: 400px; }
}
/* Tooltip host + choropleth extras for blog age-grade world map */
#country-map.country-map-mount,
#hpv-africa-map.country-map-mount {
  position: relative;
  max-width: 100%;
  overflow-x: hidden;
  box-sizing: border-box;
}
.country-map-error {
  margin: 0;
  padding: var(--s-8);
  text-align: center;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
}
.country-map-tooltip {
  position: absolute;
  z-index: 4;
  pointer-events: none;
  box-sizing: border-box;
  max-width: min(320px, calc(100% - 16px));
  width: max-content;
  padding: var(--s-2) var(--s-3);
  border-radius: var(--radius-s);
  border: 1px solid var(--rule-soft);
  background: var(--paper);
  box-shadow: 0 4px 16px rgba(26, 35, 50, 0.08);
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.35;
  color: var(--ink);
  text-align: left;
}
.country-map-tooltip strong {
  font-weight: 700;
}
/* Toolbar + legend (blog age-grade map) — single panel */
.country-map-panel {
  margin-bottom: var(--s-4);
  padding: var(--s-3) var(--s-4);
  background: var(--paper-2);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-s);
  box-sizing: border-box;
}
.country-map-panel .country-map-toolbar.d3-controls {
  margin-bottom: 0;
  padding-bottom: var(--s-3);
  border-bottom: 1px solid var(--rule-soft);
}
.country-map-panel .country-map-legend-host {
  margin-bottom: 0;
  margin-top: 0;
  padding: var(--s-3) 0 0;
  background: transparent;
  border: none;
  border-radius: 0;
}
.country-map-legend-host {
  box-sizing: border-box;
}
.country-map-legend-title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: var(--s-3);
  line-height: 1.4;
}
.country-map-legend-seq {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  flex-wrap: wrap;
}
@media (max-width: 480px) {
  .country-map-panel {
    padding: var(--s-2) var(--s-3);
  }
  .country-map-panel .country-map-toolbar.d3-controls {
    padding-bottom: var(--s-2);
  }
  .country-map-panel .country-map-legend-host {
    padding-top: var(--s-2);
  }
  .country-map-toolbar.d3-controls select {
    font-size: 10px;
    letter-spacing: 0.04em;
    padding: 5px 9px;
    line-height: 1.3;
  }
  .country-map-legend-categorical {
    flex-direction: column;
    align-items: stretch;
    gap: var(--s-2);
  }
  .country-map-legend-chip {
    width: 100%;
    box-sizing: border-box;
  }
  .country-map-legend-seq {
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    gap: var(--s-2);
  }
  .country-map-legend-seq-bound {
    flex: 0 0 auto;
    width: auto;
  }
  .country-map-legend-seq-bound:last-child {
    text-align: right;
  }
  .country-map-legend-ramp {
    flex: 1 1 auto;
    width: auto;
    min-width: 0;
    height: 12px;
    min-height: 12px;
    max-height: 12px;
  }
}
.country-map-legend-seq-bound {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-2);
  white-space: nowrap;
}
.country-map-legend-ramp {
  flex: 1 1 160px;
  height: 12px;
  min-height: 12px;
  max-height: 12px;
  border-radius: 4px;
  border: 1px solid var(--rule-soft);
  min-width: 120px;
  box-sizing: border-box;
  align-self: center;
}
.country-map-legend-categorical {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3) var(--s-5);
}
.country-map-legend-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  max-width: 100%;
}
.country-map-legend-swatch {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  flex-shrink: 0;
  border: 1px solid rgba(26, 35, 50, 0.12);
}
.country-map-legend-chip-label {
  font-family: var(--sans);
  font-size: 12px;
  color: var(--ink);
  line-height: 1.35;
}
.country-points { pointer-events: auto; }
.country-point-dot:focus { outline: none; }
.country-point-dot:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.country-layer path.country[tabindex="0"] {
  cursor: pointer;
}
.d3-mount svg { width: 100%; height: auto; display: block; }

/* HPV map — bivariate 3×3 legend (blog/hpv-cervical-cancer.html) */
.country-map-legend-bivariate {
  display: grid;
  grid-template-columns: auto auto;
  grid-template-areas:
    "ylabel matrix"
    ".      xlabel";
  align-items: center;
  gap: var(--s-2) var(--s-3);
  justify-content: start;
}
.cmlb-matrix {
  grid-area: matrix;
  display: grid;
  grid-template-columns: repeat(3, 22px);
  grid-template-rows: repeat(3, 22px);
  gap: 2px;
}
.cmlb-cell {
  width: 22px;
  height: 22px;
  border-radius: 2px;
  border: 1px solid rgba(26, 35, 50, 0.08);
}
.cmlb-axis {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  line-height: 1.3;
}
.cmlb-axis-y {
  grid-area: ylabel;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  text-align: right;
}
.cmlb-axis-x {
  grid-area: xlabel;
  text-align: left;
}
.cmlb-chips {
  margin-top: var(--s-3);
}

/* Learning gradient post — D3 figures (blog/learning-gradient.html) */
.lg-chart-draw {
  width: 100%;
  min-height: 280px;
  position: relative;
}
#learning-gradient-grade-chart.d3-mount,
#learning-gradient-wealth-chart.d3-mount {
  min-height: 300px;
  background: transparent;
  border: none;
  padding: 0;
}
#learning-gradient-wealth-chart.d3-mount {
  min-height: 320px;
}
.lg-grade-svg .lg-chart-title,
.lg-wealth-svg .lg-chart-title {
  fill: var(--ink);
  font-family: var(--sans);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.02em;
}
.lg-grade-svg .lg-chart-subtitle,
.lg-wealth-svg .lg-chart-subtitle {
  fill: var(--ink-3);
  font-family: var(--sans);
  font-size: 11px;
}
.lg-grade-svg .lg-chart-subtitle.lg-chart-subtitle--solo,
.lg-wealth-svg .lg-chart-subtitle.lg-chart-subtitle--solo {
  fill: var(--ink-2);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.35;
}
/* Thumbnail (homepage card + blog hero) subtitle — exactly match the HPV
   timeline thumbnail subtitle style (.hpv-tl-subtitle in a .pcard-chart-thumb). */
.pcard-img.pcard-chart-thumb .pcard-learning-gradient-chart-root .lg-chart-subtitle.lg-chart-subtitle--solo {
  fill: var(--ink-2);
  font-family: "Manrope", sans-serif;
  font-size: 10px;
  font-weight: 600;
}
.d3-legend.lg-wealth-legend {
  margin-top: 6px;
  margin-bottom: 0;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  gap: var(--s-2);
  width: 100%;
}
.lg-wealth-legend-title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  line-height: 1.4;
  margin: 0;
}
.lg-wealth-legend-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2) var(--s-4);
  justify-content: flex-start;
}
.lg-hit-wealth {
  cursor: crosshair;
}
.lg-facet-title {
  fill: var(--ink);
  font-family: var(--sans);
  font-weight: 600;
  font-size: 11px;
}
.lg-bench-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.02em;
  pointer-events: none;
}
.lg-legend-text {
  fill: var(--ink-2);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.04em;
}
.lg-chart-tooltip {
  position: absolute;
  z-index: 4;
  pointer-events: none;
  max-width: min(320px, calc(100% - 16px));
  padding: var(--s-2) var(--s-3);
  border-radius: var(--radius-s);
  border: 1px solid var(--rule-soft);
  background: var(--paper);
  box-shadow: 0 4px 16px rgba(26, 35, 50, 0.08);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.35;
  color: var(--ink);
  letter-spacing: 0.04em;
}
.lg-chart-tooltip strong {
  font-weight: 600;
}
.lg-chart-tooltip .lg-tip-row,
.pcard-learning-gradient-chart-tooltip .lg-tip-row {
  display: block;
  margin-top: 10px;
}
.lg-chart-tooltip .lg-tip-row:first-child,
.pcard-learning-gradient-chart-tooltip .lg-tip-row:first-child {
  margin-top: 0;
}
.lg-chart-tooltip .lg-tip-k,
.pcard-learning-gradient-chart-tooltip .lg-tip-k {
  display: block;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 4px;
}
.lg-chart-tooltip .lg-tip-v,
.pcard-learning-gradient-chart-tooltip .lg-tip-v {
  display: block;
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.4;
  color: var(--ink);
}
.lg-chart-tooltip .lg-tip-v strong,
.pcard-learning-gradient-chart-tooltip .lg-tip-v strong {
  font-weight: 600;
  color: var(--ink);
}
.lg-chart-tooltip .lg-tip-prose,
.pcard-learning-gradient-chart-tooltip .lg-tip-prose,
.country-map-tooltip .lg-tip-prose,
.heatmap-tooltip .lg-tip-prose,
.pcard-age-grade-chart-tooltip .lg-tip-prose {
  margin: 0;
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.45;
  letter-spacing: 0.01em;
  color: var(--ink);
  font-weight: 400;
}
.lg-chart-tooltip .lg-tip-prose strong,
.pcard-learning-gradient-chart-tooltip .lg-tip-prose strong,
.country-map-tooltip .lg-tip-prose strong,
.heatmap-tooltip .lg-tip-prose strong,
.pcard-age-grade-chart-tooltip .lg-tip-prose strong {
  font-weight: 600;
  color: var(--ink);
}
.country-map-tooltip .lg-tip-prose + .lg-tip-prose,
.heatmap-tooltip .lg-tip-prose + .lg-tip-prose {
  margin-top: 8px;
}
.heatmap-tooltip .lg-tip-prose + .lg-tip-prose {
  font-size: 11px;
  color: var(--ink-2);
}
.lg-grade-svg .chart-axis path,
.lg-grade-svg .chart-axis line,
.lg-wealth-svg .chart-axis path,
.lg-wealth-svg .chart-axis line,
.decoding-cluster-svg .chart-axis path,
.decoding-cluster-svg .chart-axis line {
  stroke: var(--rule);
}
.lg-grade-svg .chart-axis text,
.lg-wealth-svg .chart-axis text,
.decoding-cluster-svg .chart-axis text {
  fill: var(--ink-3);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
}
.lg-wealth-x-axis .tick text {
  text-anchor: middle;
}
.lg-wealth-x-tick-line {
  font-size: 9px;
  letter-spacing: 0.05em;
}
.lg-grade-svg .chart-axis-label,
.lg-wealth-svg .chart-axis-label,
.decoding-cluster-svg .chart-axis-label {
  fill: var(--ink-2);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
/* Traveling dot on the Africa benchmark line (JS-driven loop).
   No per-frame filter — the halo circle supplies the glow so motion stays smooth. */
.lg-bench-pulse-halo {
  opacity: 0.22;
}
.d3-controls {
  display: flex; align-items: center; gap: var(--s-3);
  margin-bottom: var(--s-4);
}
.d3-controls label {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em;
  color: var(--ink-3); text-transform: uppercase;
}
.d3-controls select {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em;
  color: var(--ink); background: var(--paper);
  border: 1px solid var(--rule); border-radius: var(--radius-s);
  padding: 6px 12px; cursor: pointer;
  transition: border-color 240ms var(--ease);
}
.d3-controls select:hover { border-color: var(--accent); }
.d3-controls select:focus { outline: none; border-color: var(--accent); }
.country-map-toolbar.d3-controls {
  margin-bottom: var(--s-3);
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: var(--s-3);
}
.country-map-toolbar.d3-controls label {
  flex: 0 0 auto;
  margin-bottom: 0;
  max-width: 42%;
  white-space: nowrap;
}
.country-map-toolbar.d3-controls select {
  flex: 1 1 12rem;
  min-width: 0;
  max-width: 100%;
  margin-left: auto;
}
@media (max-width: 420px) {
  .country-map-toolbar.d3-controls {
    flex-wrap: wrap;
    align-items: stretch;
    gap: var(--s-2);
  }
  .country-map-toolbar.d3-controls label {
    flex: 1 1 100%;
    max-width: none;
    white-space: normal;
  }
  .country-map-toolbar.d3-controls select {
    flex: 1 1 100%;
    width: 100%;
    margin-left: 0;
  }
}
.d3-legend {
  display: flex; flex-wrap: wrap; gap: 16px;
  margin-top: 12px; justify-content: center;
}
.d3-legend .chip {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em;
  color: var(--ink-2); text-transform: uppercase;
}
.d3-legend .chip i {
  display: inline-block; width: 14px; height: 10px; border-radius: 2px;
}
.d3-legend .chip i.dash {
  height: 2px; width: 18px; border-radius: 0;
}
/* ─── AGE-GRADE INTERACTIVE (blog/age-grade-alignment.html) ──────────────── */
.agi {
  --agi-under: var(--accent-purple);
  --agi-at: var(--accent-green);
  --agi-over: var(--accent-orange);
  --agi-orange-soft: var(--accent-orange-soft);
  --agi-shadow: 0 1px 2px rgba(20,30,60,.04), 0 8px 24px -12px rgba(20,30,60,.12);
  font-family: var(--sans);
  color: var(--ink);
}
@supports (color: color-mix(in oklab, red, red)) {
  .agi {
    --agi-orange-soft: color-mix(in oklab, var(--accent-orange) 22%, var(--paper));
  }
}
.agi-lead {
  text-align: center;
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(17px, 1.8vw, 22px);
  line-height: 1.9;
  letter-spacing: -0.01em;
  max-width: 880px;
  margin: 4px auto 24px;
  text-wrap: balance;
}
.agi-pill {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  padding: 1px 8px;
  border-radius: var(--radius-s);
  background: var(--paper);
  border: 1px solid var(--rule);
  box-shadow: var(--agi-shadow);
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  color: var(--ink);
  margin: 0 2px;
  cursor: ns-resize;
  user-select: none;
  transition: transform .12s var(--ease), border-color .12s var(--ease);
}
.agi .agi-pill:hover { border-color: var(--accent-green); transform: translateY(-1px); }
.agi .agi-pill.range { color: var(--accent-green); border-color: var(--accent-green-soft); background: var(--accent-green-soft); }
.agi-num { font-size: 1em; }

.agi-controls {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 24px;
  align-items: end;
  background: var(--paper);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-m);
  padding: 16px 20px;
  box-shadow: var(--agi-shadow);
  margin-bottom: 28px;
}
.agi-ctrl-secondary { opacity: 0.7; }
.agi-ctrl-secondary:hover, .agi-ctrl-secondary:focus-within { opacity: 1; }
.agi-ctrl-secondary input[type=range] { height: 3px; }
.agi-ctrl-secondary input[type=range]::-webkit-slider-thumb { width: 14px; height: 14px; border-width: 1.5px; }
.agi-ctrl-secondary input[type=range]::-moz-range-thumb { width: 14px; height: 14px; border-width: 1.5px; }
.agi-ctrl-secondary label { font-size: 10px; }
.agi-ctrl label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.agi-ctrl label .agi-val {
  font-family: var(--mono);
  color: var(--ink);
  font-size: 12px;
  background: var(--paper-2);
  padding: 2px 8px;
  border-radius: var(--radius-s);
  text-transform: none;
  letter-spacing: 0;
}
.agi-ctrl input[type=range] {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--paper-3);
  border-radius: 999px;
  outline: none;
}
.agi-ctrl input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--accent-green);
  cursor: grab;
  box-shadow: 0 2px 6px rgba(20,30,60,.18);
}
.agi-ctrl input[type=range]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--paper); border: 2px solid var(--accent-green); cursor: grab;
}

.agi-diagram {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-m);
  padding: 24px 20px 20px;
  box-shadow: var(--agi-shadow);
}
.agi-badges {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.agi-badge {
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--rule-soft);
  background: var(--paper);
}
.agi-head {
  color: var(--paper);
  padding: 10px 14px;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
}
.agi-body {
  padding: 10px 14px;
  text-align: center;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  color: var(--ink-2);
}
.agi-badge.under .agi-head { background: var(--agi-under); }
.agi-badge.at    .agi-head { background: var(--agi-at); }
.agi-badge.over  .agi-head { background: var(--agi-over); }
.agi-badge.under .agi-body { background: var(--accent-purple-soft); }
.agi-badge.at    .agi-body { background: var(--accent-green-soft); }
.agi-badge.over  .agi-body { background: var(--agi-orange-soft); }

.agi-arrows { position: relative; height: 48px; margin-top: 4px; }
.agi-arrow {
  position: absolute; top: 0; height: 100%; width: 2px;
  border-left: 2px dashed currentColor;
}
.agi-arrow::after {
  content: ""; position: absolute; bottom: -1px; left: 50%;
  transform: translateX(-50%);
  width: 0; height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 8px solid currentColor;
}
.agi-arrow.under { left: calc(100% / 6); color: var(--agi-under); }
.agi-arrow.over  { left: calc(500% / 6); color: var(--agi-over); }

.agi-grade-band {
  position: relative;
  border-top: 1px dashed var(--rule);
  border-bottom: 1px dashed var(--rule);
  padding: 12px 0;
  margin: 8px 0 24px;
  text-align: center;
}
.agi-chip {
  display: inline-block;
  background: var(--paper-2);
  color: var(--ink);
  border: 1px solid var(--rule);
  padding: 8px 24px;
  border-radius: 999px;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
  box-shadow: 0 6px 20px -14px rgba(26, 35, 50, 0.1);
}

.agi-kids {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  column-gap: 0;
  align-items: end;
  padding-top: 8px;
}
.agi-kid { display: flex; flex-direction: column; align-items: center; }
.agi-avatar {
  width: 100%;
  max-width: 236px;
  aspect-ratio: 280 / 200;
  border: none;
  border-radius: 0;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: visible;
  box-shadow: none;
}
.agi-avatar-img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: contain;
  z-index: 1;
  /* Harmonize illustration primaries with infographic accent palette */
  filter: saturate(0.66) brightness(0.96) contrast(1.05);
}

.agi-desk {
  margin-top: -8px;
  width: 192px; max-width: 100%;
  border-radius: var(--radius-m) var(--radius-m) var(--radius-l) var(--radius-l);
  padding: 0;
  color: var(--paper);
  text-align: center;
  font-family: var(--display);
  font-weight: 600;
  font-size: 34px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  box-shadow: 0 8px 16px -8px rgba(20,30,60,.25);
}
.agi-kid.under .agi-desk { background: var(--agi-under); }
.agi-kid.at    .agi-desk { background: var(--agi-at); }
.agi-kid.over  .agi-desk { background: var(--agi-over); }

.agi-caption {
  margin-top: 10px;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.04em;
}
.agi-kid.under .agi-caption { color: var(--agi-under); }
.agi-kid.at    .agi-caption { color: var(--agi-at); }
.agi-kid.over  .agi-caption { color: var(--agi-over); }

@keyframes agi-pop {
  0% { transform: scale(1); }
  40% { transform: scale(1.08); }
  100% { transform: scale(1); }
}
.agi-pop { animation: agi-pop .35s var(--ease); display: inline-block; position: relative; z-index: 2; }

/* ≤1024px (includes phones): three-column badges + kids; clamp sizes so narrow viewports stay readable */
@media (max-width: 1024px) {
  #age-grade-chart .agi-badges {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(4px, 1.25vw, 14px);
  }
  #age-grade-chart .agi-kids {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: 0;
  }
  #age-grade-chart .agi-avatar {
    max-width: clamp(62px, 20vw, 188px);
  }
  #age-grade-chart .agi-desk {
    width: clamp(58px, 17vw, 154px);
    max-width: 100%;
    font-size: clamp(14px, 4vw, 28px);
    margin-top: clamp(-8px, -0.9vw, -6px);
  }
  #age-grade-chart .agi-head {
    padding: clamp(6px, 1.5vw, 10px) clamp(5px, 1.3vw, 14px);
    font-size: clamp(9px, 2vw, 10px);
    letter-spacing: 0.07em;
  }
  #age-grade-chart .agi-body {
    padding: clamp(6px, 1.5vw, 10px) clamp(5px, 1.3vw, 14px);
    font-size: clamp(10px, 2.5vw, 13px);
  }
  #age-grade-chart .agi-caption {
    font-size: clamp(9px, 2.3vw, 11px);
    margin-top: clamp(5px, 1vw, 8px);
    letter-spacing: 0.03em;
  }
  #age-grade-chart .agi-chip {
    padding: clamp(6px, 1.4vw, 8px) clamp(10px, 3vw, 18px);
    font-size: clamp(10px, 2.2vw, 13px);
    letter-spacing: 0.07em;
  }
  #age-grade-chart .agi-grade-band {
    margin: clamp(5px, 1vw, 6px) 0 clamp(12px, 3vw, 18px);
    padding: clamp(8px, 2vw, 10px) 0;
  }
  #age-grade-chart .agi-arrows {
    height: clamp(28px, 7vw, 44px);
    margin-top: 2px;
  }
  #age-grade-chart .agi-arrow::after {
    border-left: clamp(4px, 1vw, 5px) solid transparent;
    border-right: clamp(4px, 1vw, 5px) solid transparent;
    border-top: clamp(6px, 1.4vw, 7px) solid currentColor;
  }
}

/* Very narrow phones: shave badge labels slightly so three columns breathe */
@media (max-width: 399px) {
  #age-grade-chart .agi-head {
    font-size: calc(clamp(9px, 2vw, 10px) - 2px);
  }
  #age-grade-chart .agi-body {
    font-size: calc(clamp(10px, 2.5vw, 13px) - 1px);
  }
}

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

@media (max-width: 820px) {
  .agi-lead {
    font-size: clamp(16px, 4vw, 21px);
    max-width: 100%;
    line-height: 1.85;
    margin-bottom: 20px;
  }
  .agi-diagram { padding: 18px 14px 14px; }
  .agi-controls {
    padding: 14px 16px;
    margin-bottom: 22px;
    gap: 20px;
  }
  /* Vertical pill scrub: reduce accidental page scroll while dragging */
  .agi-pill { touch-action: none; }
  .agi-ctrl input[type=range] {
    height: 8px;
  }
  .agi-ctrl input[type=range]::-webkit-slider-thumb {
    width: 22px;
    height: 22px;
    margin-top: -7px;
  }
  .agi-ctrl input[type=range]::-moz-range-thumb {
    width: 22px;
    height: 22px;
  }
  .agi-ctrl-secondary input[type=range] {
    height: 6px;
  }
  .agi-ctrl-secondary input[type=range]::-webkit-slider-thumb {
    width: 22px;
    height: 22px;
    margin-top: -8px;
  }
  .agi-ctrl-secondary input[type=range]::-moz-range-thumb {
    width: 22px;
    height: 22px;
  }
}

@media (max-width: 600px) {
  /* Age-grade post: drop stacked card panels + figure chrome — saves inset on phones.
     Class blog-figure-interactive mirrors former :has(#age-grade-chart/#country-map) for older browsers. */
  .blog-figure.blog-figure-interactive {
    margin-top: 28px;
    margin-bottom: 28px;
    margin-left: 0;
    margin-right: 0;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 0;
  }
  .blog-figure figcaption {
    font-size: 11px;
    letter-spacing: 0.06em;
  }
  .blog-figure.blog-figure-interactive figcaption {
    margin-top: 16px;
  }
  /* Strip the inner chart frame for all interactive figures on phones —
     frameless, full content width. Covers the heatmap and learning-gradient charts. */
  .blog-figure-interactive .d3-mount {
    border: none;
    background: transparent;
    border-radius: 0;
    padding-left: 0;
    padding-right: 0;
  }
  /* Line chart: drop the card chrome too (no border, no side padding on phones).
     Selector includes .blog-figure to outrank the later global padding shorthand. */
  .blog-figure.blog-figure-interactive .pcard-age-grade-chart-wrap.blog-line-chart-figure {
    background: transparent;
    border: none;
    border-radius: 0;
    padding-left: 0;
    padding-right: 0;
  }
  #country-map.d3-mount.d3-mount-map {
    background: transparent;
    border: none;
    padding: 0;
    border-radius: 0;
  }
  #age-grade-chart .agi-controls,
  #age-grade-chart .agi-diagram {
    background: transparent;
    border: none;
    border-radius: 0;
    box-shadow: none;
    padding-left: 0;
    padding-right: 0;
  }
  #age-grade-chart .agi-controls {
    padding-top: 0;
    padding-bottom: 0;
    margin-bottom: 16px;
    gap: 16px;
  }
  #age-grade-chart .agi-diagram {
    padding: 12px 0 0;
    margin-bottom: 0;
  }

  .agi-chip { padding: 6px 16px; font-size: 12px; letter-spacing: 0.08em; }
  .agi-badge .agi-head { padding: 8px 12px; font-size: 10px; }
  .agi-badge .agi-body { padding: 8px 12px; font-size: 13px; }
  .agi-ctrl input[type=range]::-webkit-slider-thumb {
    width: 26px;
    height: 26px;
    margin-top: -9px;
  }
  .agi-ctrl input[type=range]::-moz-range-thumb {
    width: 26px;
    height: 26px;
  }
  .agi-ctrl-secondary input[type=range]::-webkit-slider-thumb {
    width: 24px;
    height: 24px;
    margin-top: -9px;
  }
  .agi-ctrl-secondary input[type=range]::-moz-range-thumb {
    width: 24px;
    height: 24px;
  }
}

/* No figure chrome on infographic kid PNGs (nested img inherits .blog-figure img shadow). */
#age-grade-chart img {
  box-shadow: none;
}

/* The interactive provides its own paper card surfaces; strip the d3-mount
   wrapper chrome so they don't double up. */
#age-grade-chart.d3-mount {
  background: transparent; border: none; padding: 0;
}

/* ─── BLOG CHART PLACEHOLDERS ───────────────────────────────────────────────
   Used before real figures/embeds are wired (learning gradient post, etc.).
   ─────────────────────────────────────────────────────────────────────────── */
.blog-chart-placeholder {
  width: 100%;
  min-height: 280px;
  aspect-ratio: 16 / 10;
  max-height: 520px;
  margin: 0 auto;
  background: var(--paper);
  border-radius: var(--radius-m);
  border: 1px solid var(--rule-soft);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}
.blog-chart-placeholder::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(135deg, transparent 0 14px, rgba(26, 35, 50, 0.04) 14px 15px);
  pointer-events: none;
}
.blog-chart-placeholder span {
  position: relative;
  z-index: 1;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  text-transform: uppercase;
  padding: 8px 14px;
  background: var(--paper);
  border-radius: 999px;
  border: 1px solid var(--rule-soft);
}
.blog-chart-placeholder--diagram {
  aspect-ratio: 21 / 10;
  min-height: 220px;
  max-height: 400px;
}

.blog-hero-visual .blog-hero-chart-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--paper-2);
}
.blog-hero-visual .blog-hero-chart-placeholder::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(135deg, transparent 0 14px, rgba(26, 35, 50, 0.04) 14px 15px);
  pointer-events: none;
}
.blog-hero-visual .blog-hero-chart-placeholder span {
  position: relative;
  z-index: 1;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  text-transform: uppercase;
  padding: 8px 14px;
  background: var(--paper);
  border-radius: 999px;
  border: 1px solid var(--rule-soft);
}

@media (max-width: 880px) {
  .blog-chart-placeholder {
    aspect-ratio: unset;
    min-height: 240px;
    max-height: none;
  }
  .blog-chart-placeholder--diagram {
    min-height: 200px;
  }
}

/* ─── BLOG PIPELINE D3 (Learning Gradient) ───────────────────────────────── */
.lg-pipeline-svg { display: block; width: 100%; height: auto; }
.lg-pipeline-cluster-rect { fill: var(--paper-2); stroke: var(--rule); stroke-width: 1.5; }
.lg-pipeline-cluster-label {
  font-family: var(--mono); font-size: 11px; font-weight: 700;
  fill: var(--ink-3); letter-spacing: 0.08em; text-transform: uppercase;
}
.lg-pipeline-node { cursor: pointer; outline: none; }
.lg-pipeline-node rect {
  fill: var(--paper); stroke: var(--rule); stroke-width: 1.5; rx: 6;
  transition: stroke-width 200ms var(--ease), filter 200ms var(--ease);
}
.lg-pipeline-node text {
  font-family: var(--sans); font-size: 12px; fill: var(--ink);
  text-anchor: middle; pointer-events: none;
}
.lg-pipeline-edge { fill: none; stroke: var(--ink-3); stroke-width: 1.4; }
.lg-pipeline-edge-hit { fill: none; stroke: transparent; stroke-width: 14; cursor: pointer; }
.lg-pipeline-node, .lg-pipeline-edge { transition: opacity 200ms var(--ease); }
.lg-pipeline-svg.is-focusing .lg-pipeline-node:not([data-active]) { opacity: 0.25; }
.lg-pipeline-svg.is-focusing .lg-pipeline-edge:not([data-active]) { opacity: 0.12; }
.lg-pipeline-node[data-active] rect { stroke: var(--accent); stroke-width: 2; filter: drop-shadow(0 1px 4px rgba(0,0,0,0.08)); }
.lg-pipeline-edge[data-active] { stroke: var(--ink); stroke-width: 2; }

/* ─── REDUCED MOTION ─────────────────────────────────────────────────────────
   Disable animations for users who prefer reduced motion.
   JS guards in main.js handle the rAF loops (separators, driveChart).
   ─────────────────────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  /* Orbit rings: freeze in place */
  .orbit-ring { animation: none; }
  /* Hero chart: snap to visible, no fade-in animation */
  .hero-bg-chart { animation: none; opacity: 0.4; }
  /* Reveal elements: skip translate/opacity transition — snap visible */
  .reveal { opacity: 1; transform: none; transition: none; }
  /* Photo still waits for decode (load gate), but snaps in without the scale settle */
  .hero-portrait .portrait-img { transform: none; }
  /* Letter stagger: snap in */
  .hero h1 .ch { opacity: 1; transform: none; animation: none; }
  /* Timeline dot: hold a static halo, no pulse */
  .timeline-dot { animation: none; box-shadow: 0 0 0 3px var(--accent-soft); }
}

/* AGE-WITHIN-GRADE HEATMAP (blog age-grade) */
.age-within-grade-heatmap.heatmap-mount {
  position: relative;
  min-height: 0;
  box-sizing: border-box;
}
.heatmap-svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}
.heatmap-axis text {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  fill: var(--ink-3);
}
.heatmap-axis-title {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  fill: var(--ink-2);
}
.heatmap-cell {
  cursor: pointer;
  transition: filter var(--quick, 240ms) var(--ease, ease);
}
.heatmap-rect {
  transition: stroke-width var(--quick, 240ms) var(--ease, ease);
}
.heatmap-val {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  pointer-events: none;
}
.heatmap-cell.is-hover {
  filter: drop-shadow(0 4px 10px rgba(26, 35, 50, 0.18));
}
.heatmap-cell.is-hover .heatmap-rect {
  stroke-width: 2.4;
}
/* Tooltip — mirrors .country-map-tooltip */
.heatmap-tooltip {
  position: absolute;
  z-index: 4;
  pointer-events: none;
  box-sizing: border-box;
  max-width: min(300px, calc(100% - 16px));
  width: max-content;
  padding: var(--s-2) var(--s-3);
  border-radius: var(--radius-s);
  border: 1px solid var(--rule-soft);
  background: var(--paper);
  box-shadow: 0 4px 16px rgba(26, 35, 50, 0.08);
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.35;
  color: var(--ink);
  text-align: left;
}
.heatmap-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-3) var(--s-6);
  margin-top: var(--s-4);
  padding-top: var(--s-3);
  border-top: 1px solid var(--rule-soft);
}
.heatmap-legend-item {
  display: flex;
  align-items: center;
  gap: var(--s-2);
}
/* First item ("% of age within grade"): show the ramp before its label. */
.heatmap-legend-item:first-child {
  flex-direction: row-reverse;
}
.heatmap-legend-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.heatmap-legend-ramp {
  width: 120px;
  height: 12px;
  border-radius: 4px;
  border: 1px solid var(--rule-soft);
}
.heatmap-legend-swatch {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 2px;
  border-radius: 3px;
  background: var(--ink-3);
  box-shadow: inset 0 0 0 1.5px var(--paper), 0 0 0 1.5px var(--accent);
}
@media (max-width: 600px) {
  .heatmap-legend { gap: var(--s-2) var(--s-5); }
  .heatmap-legend-label { font-size: 9px; letter-spacing: 0.06em; }
  .heatmap-legend-ramp { width: 88px; }
  .heatmap-legend-swatch { width: 15px; height: 15px; }
  .blog-figure-interactive .age-within-grade-heatmap .heatmap-axis text,
  .blog-figure-interactive .age-within-grade-heatmap .heatmap-axis-title { font-size: 14px; }
}
@media (max-width: 420px) {
  .blog-figure figcaption { font-size: 10px; letter-spacing: 0.04em; }
  .heatmap-legend { gap: var(--s-1) var(--s-4); }
  .heatmap-legend-label { font-size: 8px; }
  .heatmap-legend-ramp { width: 64px; }
  .blog-figure-interactive .age-within-grade-heatmap .heatmap-axis text,
  .blog-figure-interactive .age-within-grade-heatmap .heatmap-axis-title { font-size: 14px; }
}

/* SWAPPED CONTEXTS (age-grade post): heatmap in hero thumbnail, line chart in Figure 3 */
/* Heatmap as a chart-thumbnail (blog hero + homepage project card) — fill the card,
   stack a compact legend beneath. */
.pcard-img.pcard-chart-thumb .age-within-grade-heatmap {
  position: absolute;
  inset: clamp(var(--s-3), 3vw, var(--s-5));
  z-index: 2;
  min-height: 0;
  display: flex;
  flex-direction: column;
  transition: transform 800ms var(--ease), filter 800ms var(--ease);
  transform-origin: center center;
}
.pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-svg {
  flex: 1 1 0;
  min-height: 0;
  width: 100%;
  height: 100%;
}
.pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-val {
  display: none;
}
/* Show + shrink the legend so it reads inside the thumbnail (like the line-chart thumb). */
.pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-legend {
  flex: 0 0 auto;
  justify-content: center;
  gap: var(--s-1) var(--s-4);
  margin-top: var(--s-2);
  padding-top: var(--s-2);
}
.pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-legend-label {
  font-size: 9px;
  letter-spacing: 0.05em;
}
.pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-legend-ramp {
  width: 64px;
  height: 9px;
}
.pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-legend-swatch {
  width: 13px;
  height: 13px;
}
.pcard:hover .pcard-img.pcard-chart-thumb .age-within-grade-heatmap,
.blog-hero-visual.blog-hero-visual-chart:hover .pcard-img.pcard-chart-thumb .age-within-grade-heatmap {
  transform: scale(1.03);
  filter: brightness(1.04);
}
@media (max-width: 600px) {
  .pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-axis text,
  .pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-axis-title {
    font-size: 24px;
  }
  .pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-legend-label {
    font-size: 8px;
    letter-spacing: 0.04em;
  }
  .pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-legend-ramp {
    width: 52px;
    height: 8px;
  }
  .pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-legend-swatch {
    width: 11px;
    height: 11px;
  }
}
@media (max-width: 420px) {
  .pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-axis text,
  .pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-axis-title {
    font-size: 28px;
  }
  .pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-legend-label {
    font-size: 7px;
  }
  .pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-legend-ramp {
    width: 40px;
  }
}
@media (max-width: 400px) {
  /* Thumbnail: expected cells become solid accent fill with no borders. */
  .pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-cell.is-expected .heatmap-rect {
    fill: var(--accent);
    stroke: none;
  }
  .pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-cell.is-expected .heatmap-rect-inner {
    display: none;
  }
  /* Match the legend swatch to the cells: solid accent, no border, smaller. */
  .pcard-img.pcard-chart-thumb .age-within-grade-heatmap .heatmap-legend-swatch {
    width: 9px;
    height: 9px;
    background: var(--accent);
    box-shadow: none;
  }
}

/* Learning-gradient post on phones: shrink the faceted wealth chart's text so the two
   squeezed panels stop overlapping. (Charts stay frameless — see the global
   #learning-gradient-*.d3-mount rules and the ≤600px .blog-figure-interactive .d3-mount rule.) */
@media (max-width: 400px) {
  .lg-wealth-svg .lg-facet-title { font-size: 9px; }
  .lg-wealth-svg .lg-bench-label { font-size: 7px; }
  .lg-wealth-svg .chart-axis text { font-size: 8px; }
  .lg-wealth-svg .lg-wealth-x-tick-line { font-size: 7px; }

  .lg-wealth-legend .lg-wealth-legend-title,
  .lg-wealth-legend .chip { font-size: 9px; }
}

/* Line chart as an in-article figure — give the wrap intrinsic height (it sizes from clientHeight). */
.blog-figure-interactive .pcard-age-grade-chart-wrap.blog-line-chart-figure {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 11;
  max-height: 460px;
  display: flex;
  flex-direction: column;
  padding: var(--s-3);
  box-sizing: border-box;
}

/* Figure 4 (blog line chart) subtitle + ramp-legend labels: match the
   learning-gradient figures' typography (see .lg-chart-subtitle--solo and
   .lg-legend-text). Scoped to the blog figure so the homepage card thumbnail
   keeps its smaller styling. Extra .pcard-age-grade-chart-root segment lifts
   specificity above the base .pcard-age-grade-chart-root rules. */
.blog-line-chart-figure .pcard-age-grade-chart-root .chart-subtitle {
  fill: var(--ink-2);
  font-size: 12px;
  font-weight: 500;
}
.blog-line-chart-figure .pcard-age-grade-chart-root .legend-item {
  fill: var(--ink-2);
  font-size: 9px;
}

/* FULL-BLEED BLOG HERO THUMBNAIL (≤400px) */
/* Placed at end-of-file so it wins over the base .blog-hero-* rules by source order.
   The thumbnail goes edge-to-edge with square corners and no framing, while the hero
   text keeps a small gutter so it stays readable. Vertical rhythm is left intact. */
@media (max-width: 400px) {
  .blog-hero-wrap { padding-left: 0; padding-right: 0; }
  .blog-hero-content { padding-left: var(--s-4); padding-right: var(--s-4); }
  .blog-hero-visual {
    border-radius: 0;
    border: none;
    box-shadow: none;
  }
  .blog-hero-visual::after { display: none; }
}

/* Decoding online-shopping post — K-means cluster scatter */
#decoding-cluster-chart.d3-mount { min-height: 420px; }
@media (max-width: 600px) {
  #decoding-cluster-chart.d3-mount { min-height: 340px; }
}
.decoding-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding: 10px 4px 2px;
  font-family: var(--mono);
  font-size: clamp(9px, 1.6vw, 11px);
  color: var(--ink-3);
  letter-spacing: 0.04em;
}
.decoding-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}
/* Card / hero thumbnail (mirrors learning-gradient chart thumb) */
.pcard-img.pcard-chart-thumb .pcard-decoding-chart-wrap {
  position: absolute;
  inset: clamp(var(--s-2), 2.8vw, var(--s-4));
  display: flex;
  flex-direction: column;
  padding: clamp(var(--s-2), 2vw, var(--s-3));
  min-height: 0;
  z-index: 2;
}
@media (max-width: 600px) {
  .pcard-img.pcard-chart-thumb .pcard-decoding-chart-wrap { padding: 0; }
}
.pcard-decoding-chart-root {
  flex: 1;
  min-height: 0;
  width: 100%;
  position: relative;
}
.pcard-decoding-chart-root svg,
.pcard-decoding-chart-root canvas {
  display: block;
}
.pcard-decoding-chart-wrap[data-chart-error="1"]::after {
  content: "Chart unavailable";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
}

/* HPV — NATURAL HISTORY (schematic curves + prevention continuum) */
#hpv-natural-history.d3-mount { min-height: 360px; }
@media (max-width: 600px) {
  #hpv-natural-history.d3-mount { min-height: 300px; }
}

.hpv-nh-svg { width: 100%; height: auto; display: block; }

/* Axis + curve labels follow the design-system type scale. */
.hpv-nh-tick text,
.hpv-nh-axis-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
}
.hpv-nh-curve-label {
  font-family: 'Manrope', sans-serif;
  font-size: 13px;
  font-weight: 600;
}
.hpv-nh-band-stage {
  font-family: 'Manrope', sans-serif;
  font-size: 12px;
  font-weight: 600;
}
.hpv-nh-band-action {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
}

/* Hover / focus: emphasize one stage, dim the others. */
.hpv-nh-curve,
.hpv-nh-band {
  transition: opacity var(--ease) 240ms;
  outline: none;
}
.hpv-nh-curve.is-dim,
.hpv-nh-band.is-dim { opacity: 0.28; }
.hpv-nh-curve.is-active .hpv-nh-stroke { stroke-width: 3; }
.hpv-nh-curve.is-active .hpv-nh-fill { opacity: 0.92; }
.hpv-nh-band.is-active .hpv-nh-band-rect { stroke-width: 1.8; }
.hpv-nh-curve,
.hpv-nh-band { cursor: default; }

/* HPV — INCIDENCE BY WHO REGION (bar chart) */
#hpv-incidence-bars.d3-mount { min-height: 300px; }
@media (max-width: 600px) {
  #hpv-incidence-bars.d3-mount { min-height: 260px; }
}

.hpv-bar-svg { width: 100%; height: auto; display: block; }

.hpv-bar-tick text,
.hpv-bar-axis-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
}
.hpv-bar-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
}
.hpv-bar-label {
  font-family: 'Manrope', sans-serif;
  font-size: 13px;
  font-weight: 600;
}

/* Hover / focus: emphasize one row, dim the others. */
.hpv-bar-row {
  transition: opacity var(--ease) 240ms;
  outline: none;
}
.hpv-bar-row.is-dim { opacity: 0.28; }
.hpv-bar-row.is-active .hpv-bar-rect { stroke: var(--ink-3); stroke-width: 1; }
.hpv-bar-row { cursor: default; }

/* HPV — VACCINE INTRODUCTION TIMELINE (page 11: cumulative line + annual bars) */
#hpv-vaccine-timeline.d3-mount { min-height: 360px; position: relative; }
@media (max-width: 600px) {
  #hpv-vaccine-timeline.d3-mount { min-height: 300px; }
}

.hpv-tl-svg { width: 100%; height: auto; display: block; }

.hpv-tl-ytick text,
.hpv-tl-xaxis text,
.hpv-tl-axis-title,
.hpv-tl-future-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
}
.hpv-tl-future-label { font-size: 10px; }
.hpv-tl-vlabel,
.hpv-tl-planned-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
}
.hpv-tl-planned-count { font-size: 14px; }
.hpv-tl-legend-label {
  font-family: 'Manrope', sans-serif;
  font-size: 11px;
  dominant-baseline: central;
}
.hpv-tl-anno-text {
  font-family: 'Manrope', sans-serif;
  font-size: 11.5px;
}
.hpv-tl-subtitle {
  font-family: 'Manrope', sans-serif;
  font-size: 12px;
  font-weight: 600;
}
.hpv-tl-hit { cursor: pointer; }
.hpv-tl-planned-list {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  letter-spacing: 0.02em;
}

/* Hover / focus: emphasize one year, dim the rest. */
.hpv-tl-pt,
.hpv-tl-bar {
  transition: opacity var(--ease) 200ms;
  outline: none;
  cursor: default;
}
.hpv-tl-pt.is-dim,
.hpv-tl-bar.is-dim { opacity: 0.3; }
.hpv-tl-pt.is-active .hpv-tl-marker { r: 6; }
.hpv-tl-bar.is-active { opacity: 1; }

/* Tooltip (mirrors learning-gradient / heatmap tooltip styling). */
.hpv-tl-tooltip {
  position: absolute;
  z-index: 3;
  pointer-events: none;
  max-width: min(280px, calc(100% - 16px));
  padding: var(--s-2) var(--s-3);
  border-radius: var(--radius-s);
  border: 1px solid var(--rule-soft);
  background: var(--paper);
  box-shadow: 0 4px 16px rgba(26, 35, 50, 0.08);
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.4;
  color: var(--ink);
  letter-spacing: 0.03em;
}
.hpv-tl-tip-head { color: var(--ink); }
.hpv-tl-tip-head strong { font-weight: 600; }
.hpv-tl-tip-sub { color: var(--ink-2); margin-top: 2px; }
.hpv-tl-tip-list { color: var(--ink-3); margin-top: 4px; }
.hpv-tl-tip-total { color: var(--ink-3); margin-top: 4px; }

/* Hero thumbnail variant: fill the card, drop chart chrome. */
.pcard-img.pcard-chart-thumb .pcard-hpv-timeline-wrap {
  position: absolute;
  inset: clamp(var(--s-3), 3vw, var(--s-5));
  z-index: 2;
  display: flex;
  min-height: 0;
  transition: transform 800ms var(--ease), filter 800ms var(--ease);
  transform-origin: center center;
}
.pcard-img.pcard-chart-thumb .pcard-hpv-timeline-wrap .hpv-tl-svg {
  width: 100%;
  height: 100%;
}
/* Compact axis labels for the thumbnail (mirrors the learning-gradient thumb). */
.pcard-img.pcard-chart-thumb .pcard-hpv-timeline-wrap .hpv-tl-ytick text,
.pcard-img.pcard-chart-thumb .pcard-hpv-timeline-wrap .hpv-tl-xaxis text {
  font-size: 9px;
  letter-spacing: 0.04em;
}
.pcard-img.pcard-chart-thumb .pcard-hpv-timeline-wrap .hpv-tl-subtitle {
  font-size: 10px;
}
.pcard:hover .pcard-img.pcard-chart-thumb .pcard-hpv-timeline-wrap,
.blog-hero-visual.blog-hero-visual-chart:hover .pcard-img.pcard-chart-thumb .pcard-hpv-timeline-wrap {
  transform: scale(1.03);
  filter: brightness(1.04);
}