SVG & data graphics

<svg width="20" height="20" viewBox="0 0 24 24"
     fill="none" stroke="currentColor" stroke-width="1.8"
     stroke-linecap="round" stroke-linejoin="round"
     aria-hidden="true">
  <path d="M5 12h14m-6-7 7 7-7 7"/>
</svg>

<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="208"
     viewBox="0 0 880 208" fill="none" role="img"
     preserveAspectRatio="xMidYMid meet">

  <!-- The 0.5 offset keeps a 1px stroke crisp: a whole-pixel edge
       straddles two device pixels and renders as 2px of grey. -->
  <rect x="0.5" y="0.5" width="879" height="207" rx="20"
        fill="#ffffff" stroke="#000000" stroke-opacity="0.1"/>

  <!-- dark twin: fill="#1c1c1e" stroke="#ffffff" stroke-opacity="0.13" -->
</svg>

# The generator lives in the repo and reads the endpoints from tokens.css,
# so it cannot drift from the system.

node scripts/ramp.mjs        # the 6 steps in tokens.css
node scripts/ramp.mjs 10     # any sample count
node scripts/ramp.mjs 16 --json   # for a card generator to consume

# Endpoints, from tokens.css:
#   --c-from  light-dark(#03744e, #4dff9b)   the accent itself
#   --c-to    light-dark(#7ee6c3, #107f40)

# 🔴 The interpolation happens in OKLab, not sRGB. See scripts/ramp.mjs —
# the conversion is about 30 lines and it is the whole reason the steps
# come out evenly spaced.

<!-- The track is a rounded rect; segments are plain paths drawn over it.
     Clipping the segments to the radius is unnecessary and costs a
     clipPath — the track's own corners show through at both ends. -->
<rect x="0" y="0" width="600" height="10" rx="5" fill="#f5f5f7"/>
<path d="M0 0h252v10H0z"     fill="#03744e"/>
<path d="M252 0h144v10H252z" fill="#268a64"/>

<!-- Columns animate with scaleY from the baseline. transform-origin must
     be explicit and in user units — an SVG element's default origin is the
     viewport corner, not the element, so without it every bar grows from
     the top-left of the whole card. -->
<rect x="34" y="140" width="18" height="28" class="bar"
      style="transform-origin:43px 168px; animation-delay:0.10s"/>

@keyframes bar { from { transform: scaleY(0); } }

// Each day is a spoke between an inner and outer radius. Angle is the day's
// position in the year; length and colour both carry the count, so the
// pattern survives being printed in greyscale.
const R_IN = 52, R_OUT = 124, cx = 150, cy = 150;

days.forEach((count, i) => {
  const a   = (i / days.length) * Math.PI * 2 - Math.PI / 2;  // 12 o'clock
  const len = R_IN + (R_OUT - R_IN) * (count / max);
  spoke(cx + Math.cos(a) * R_IN,  cy + Math.sin(a) * R_IN,
        cx + Math.cos(a) * len,   cy + Math.sin(a) * len,
        ramp(steps, theme)[bucket(count)]);
});

<style>
  /* 🔴 no-preference, NOT a `reduce` override. An SVG carries its own styles,
     so the global rule in base.css cannot reach inside it — the guard has to
     be repeated here or the card ignores the setting entirely. */
  @media (prefers-reduced-motion: no-preference) {
    .fade { animation: fade 260ms cubic-bezier(.22, 1, .36, 1) both; }
    .rise { animation: rise 420ms cubic-bezier(.22, 1, .36, 1) both; }
    .grow { animation: grow 420ms cubic-bezier(.22, 1, .36, 1) both; }
    .bar  { animation: bar  420ms cubic-bezier(.22, 1, .36, 1) both; }
    .draw { animation: draw 900ms cubic-bezier(.22, 1, .36, 1) both; }

    @keyframes fade { from { opacity: 0; transform: translateY(6px); } }
    @keyframes rise { from { opacity: 0; transform: translateY(12px); } }
    @keyframes grow { from { transform: scaleX(0); } }
    @keyframes bar  { from { transform: scaleY(0); } }
    @keyframes draw { from { stroke-dashoffset: 1; } }
  }
</style>

<picture>
  <source srcset="./assets/overview-dark.svg" media="(prefers-color-scheme: dark)">
  <img src="./assets/overview-light.svg" width="100%"
       alt="GitHub stats: 5,945 contributions, 42% TypeScript, 24% Go…">
</picture>