/* Layout: plain masthead, an animated weekly run, then a catalogue of tools and the
   data they read. */
/* White in every theme, by choice: no dark variant. */
:root {
  color-scheme: light;
  --paper: #ffffff;
  --surface: #ffffff;
  --ink: #15202b;
  --muted: #586470;
  --rule: #d7dde2;
  --amber: #995700;
  --amber-wash: #fcf1dc;
  --ok: #1c6b45;
  --x-wash: #eceff1;
  --display: "Barlow Condensed", "Bahnschrift SemiCondensed", "Arial Narrow", sans-serif;
  --body: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  --wrap: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 1.0625rem/1.6 var(--body);
}
a { color: var(--amber); text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }
h1, h2, h3 { font-family: var(--display); line-height: 1.05; text-wrap: balance; margin: 0; }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.5rem); font-weight: 700; letter-spacing: 0.005em; }
h3 { font-size: 1.25rem; font-weight: 600; letter-spacing: 0.01em; }
p { margin: 0; }
code, .mono { font-family: var(--mono); }

.wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
.eyebrow {
  font: 600 0.8rem/1.4 var(--display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
}
.lede { color: var(--muted); max-width: 62ch; }

/* Header */
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: env(safe-area-inset-top, 0px);
  z-index: 10;
  background: var(--paper);
}
.top {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 5;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
.top .wrap {
  display: flex;
  align-items: center;
  gap: 16px 40px;
  padding-block: 12px;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: baseline; gap: 10px; text-decoration: none; color: var(--ink); }
.brand b { font: 700 1.35rem/1 var(--display); letter-spacing: 0.01em; }
.brand span { font: 500 0.85rem/1 var(--display); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.nav { display: flex; gap: 18px; flex-wrap: wrap; }
.nav a { color: var(--ink); text-decoration: none; font: 600 0.95rem/1 var(--display); letter-spacing: 0.06em; text-transform: uppercase; }
.nav a:hover { color: var(--amber); }

/* Sections */
section { padding-top: 72px; padding-bottom: 72px; }
@media (max-width: 860px) { section { padding-top: 48px; padding-bottom: 48px; } }
section + section { border-top: 1px solid var(--rule); }
.section-head { display: grid; gap: 10px; margin-bottom: 32px; }

/* Hero */
.hero h1 { font-size: clamp(2.5rem, 5.4vw, 4rem); font-weight: 700; letter-spacing: -0.005em; margin-block: 14px 18px; max-width: 22ch; }
.hero .lede { font-size: 1.15rem; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.button {
  display: inline-flex;
  align-items: center;
  padding: 11px 18px;
  border: 1.5px solid var(--ink);
  font: 600 1rem/1 var(--display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  background: transparent;
}
.button.primary { background: var(--ink); color: var(--paper); }
.button:hover { border-color: var(--amber); color: var(--amber); }
.button.primary:hover { background: var(--amber); border-color: var(--amber); color: var(--paper); }
.hero-facts { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 30px; padding: 0; list-style: none; color: var(--muted); font-size: 0.95rem; }
.hero-facts b { color: var(--ink); font-weight: 600; }

/* Weekly run: soft colored cards on streams, with dots (charge lines) moving through them. */
.c-blue { --c: #1f6fb2; --w: #e4f1fb; }
.c-indigo { --c: #4a4fc4; --w: #eaeafc; }
.c-coral { --c: #c8442f; --w: #fde9e5; }
.c-amber { --c: #a86500; --w: #fcf1dc; }
.c-green { --c: #1b7f52; --w: #e2f4ea; }
.c-violet { --c: #6a3d9a; --w: #f0e9f7; }
.c-teal { --c: #0f7f8e; --w: #dff3f5; }
.c-pink { --c: #b8387f; --w: #fbe8f3; }
.c-slate { --c: #64748b; --w: #eef1f5; }
.flow-controls { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.flow-controls .chip { border-radius: 999px; padding: 9px 16px; font-size: 1.02rem; letter-spacing: 0.02em; text-transform: none; }
.flow-controls .chip[aria-pressed="true"] { background: var(--c); border-color: var(--c); color: var(--surface); }
#flow-play { border-color: var(--ink); }
.flow { margin: 0; }
.flow-scroll { overflow-x: auto; scroll-behavior: smooth; }
.flow svg { display: block; width: 100%; min-width: 860px; height: auto; }

.ribbon { fill: none; stroke: var(--c); stroke-opacity: 0.2; stroke-width: 6; stroke-linecap: round; transition: stroke-opacity 0.4s; }
.ribbon.wide { stroke-width: 12; }
.ribbon.on { stroke-opacity: 0.55; }
.ribbon.stop { stroke-width: 5; stroke-dasharray: 1 11; }
.ribbon.stop.on { animation: flow-trickle 0.9s linear infinite; }
@keyframes flow-trickle { to { stroke-dashoffset: -12; } }

.card, .pill { transform-box: fill-box; transform-origin: center; }
.card { cursor: pointer; }
.card rect, .pill rect { fill: var(--w); stroke: var(--c); stroke-opacity: 0; stroke-width: 2.5; transition: stroke-opacity 0.3s, fill 0.3s; }
.card:hover rect { stroke-opacity: 0.45; }
.card.on rect, .pill.on rect { stroke-opacity: 1; }
.card.on { filter: drop-shadow(0 8px 14px rgb(21 32 43 / 0.14)); }
.card .icon { fill: none; stroke: var(--c); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; opacity: 0.6; transition: opacity 0.3s; }
.card.on .icon { opacity: 0.14; }
.card-title { font: 700 22px var(--display); fill: var(--ink); text-anchor: middle; }
.badge circle { fill: var(--c); }
.badge text { font: 700 14px var(--display); fill: var(--surface); text-anchor: middle; }
.pill text { font: 600 14px var(--body); fill: var(--ink); text-anchor: middle; transition: fill 0.3s; }
.pill .sub { font-size: 12px; font-weight: 400; fill: var(--muted); }
.pill.done rect { fill: var(--c); }
.pill.done text { fill: var(--surface); }
.stop-label { font: 600 13px var(--body); fill: var(--c); }

.dot .core { fill: var(--c); stroke: var(--surface); stroke-width: 1.5; transition: fill 0.3s; }
.dot .arc { fill: none; stroke: var(--c); stroke-width: 2.6; opacity: 0; transition: opacity 0.35s; }
.dot.enriched .arc { opacity: 1; }
.burst { fill: none; stroke: var(--c); stroke-width: 2.5; }
.tick { transform: scale(0); transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1); }
.tick.done { transform: scale(1); }
.tick circle { fill: var(--c); stroke: var(--surface); stroke-width: 2; }
.tick path { fill: none; stroke: var(--surface); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.flow-caption { display: grid; gap: 6px; min-height: 6.5rem; margin-top: 18px; }
.flow-caption h3 { font-size: 1.6rem; font-weight: 700; color: var(--c); }
.flow-caption p { color: var(--muted); max-width: 62ch; }
@media (prefers-reduced-motion: reduce) {
  .flow-scroll { scroll-behavior: auto; }
  .ribbon.stop.on { animation: none; }
  .tick { transition: none; }
}

.field { display: grid; gap: 4px; }
.field label { font: 600 0.8rem/1.4 var(--display); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.field input, .field select {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink);
  font: 500 0.98rem/1.3 var(--mono);
}
.field input:focus { border-color: var(--amber); outline: none; box-shadow: 0 0 0 2px var(--amber-wash); }

/* Services */
.services { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1.5px solid var(--ink); }
.service { padding: 24px 24px 26px 0; border-bottom: 1px solid var(--rule); display: grid; gap: 10px; align-content: start; }
.service:nth-child(odd) { padding-right: 28px; border-right: 1px solid var(--rule); }
.service:nth-child(even) { padding-left: 28px; }
.service p { color: var(--muted); }
.service ul { margin: 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 6px; }
.service li { font: 500 0.8rem/1.3 var(--mono); padding: 3px 8px; background: var(--x-wash); }

/* Approach */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; margin: 0; padding: 0; list-style: none; counter-reset: step; }
.steps li { display: grid; gap: 8px; align-content: start; counter-increment: step; }
.steps li::before {
  content: "Step " counter(step);
  font: 700 0.85rem/1 var(--display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
}
.steps p { color: var(--muted); }
.assurance { margin-top: 32px; padding: 16px 18px; background: var(--amber-wash); max-width: 72ch; }

/* Work explorer */
.filters { display: grid; gap: 14px; margin-bottom: 22px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 7px 13px;
  border: 1px solid var(--rule);
  background: var(--surface);
  color: var(--ink);
  font: 600 0.9rem/1 var(--display);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
}
.chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.chip:hover { border-color: var(--amber); }
.filter-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto; gap: 12px; align-items: end; }
.count { font-size: 0.9rem; color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; padding-bottom: 9px; }
.work-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 16px; }
.work-card {
  display: grid;
  grid-template-rows: auto auto 1fr auto auto;
  gap: 9px;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--rule);
  min-width: 0;
}
.work-card p { color: var(--muted); font-size: 0.96rem; }
.kind { justify-self: start; font: 700 0.75rem/1 var(--display); letter-spacing: 0.1em; text-transform: uppercase; padding: 4px 7px; border: 1px solid currentColor; }
.kind-weekly { color: var(--amber); background: var(--amber-wash); }
.kind-analysis { color: var(--muted); }
.kind-library { color: var(--ok); }
.kind-building { color: var(--muted); border-style: dashed; }
.work-sources { margin: 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 5px; }
.work-sources li { font: 500 0.74rem/1.3 var(--mono); padding: 3px 7px; background: var(--x-wash); }
.work-card .work-areas { font: 600 0.9rem/1.35 var(--display); letter-spacing: 0.02em; color: var(--amber); }
.work-empty { color: var(--muted); }

/* Extracts */
.extracts { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: 24px 32px; }
.extract-group { display: grid; gap: 8px; align-content: start; }
.extract-group h3 { padding-bottom: 6px; border-bottom: 1.5px solid var(--ink); }
.extract-group ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.extract-group li { display: grid; gap: 1px; }
.extract-group .fmt { font: 400 0.8rem/1.3 var(--mono); color: var(--muted); }

/* About and contact */
.about { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); }
.about p + p { margin-top: 14px; }
.about ul { margin: 0; padding-left: 1.1em; color: var(--muted); display: grid; gap: 6px; }
.contact-box { display: grid; gap: 12px; max-width: 62ch; }
.contact-links { display: flex; flex-wrap: wrap; gap: 12px; margin: 8px 0 0; padding: 0; list-style: none; }

footer { border-top: 1.5px solid var(--ink); }
footer .wrap { padding-block: 22px 30px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: 0.88rem; color: var(--muted); }

@media (max-width: 860px) {
  .about { grid-template-columns: minmax(0, 1fr); }
  .services { grid-template-columns: minmax(0, 1fr); }
  .service:nth-child(odd), .service:nth-child(even) { padding: 22px 16px 22px 0; border-right: 0; }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .filter-row { grid-template-columns: minmax(0, 1fr); }
  .count { padding-bottom: 0; }
}
@media (max-width: 480px) {
  .nav { gap: 12px; }
}